DisplayPort
Encyclopedia
DisplayPort is a digital display interface standard produced by the Video Electronics Standards Association
(VESA). The specification defines a royalty-free digital interconnect for audio and video. The interface is primarily used to connect a video source to a display device
such as a computer monitor or television set
.
The first version 1.0 was approved by VESA on May 3, 2006. Two updated revisions have since been approved starting with 1.1a on April 2, 2007 followed by the current standard 1.2 on December 22, 2009.
DisplayPort is designed to replace Digital Visual Interface
(DVI) and Video Graphics Array
(VGA), as well as replace internal digital LVDS links in computer monitor panels and TV panels. DisplayPort can also provide the same functionality as HDMI
but is not expected to displace HDMI in high-definition consumer electronics devices.
, USB, and PCI Express
. It supports both external (box-to-box) and internal (laptop LCD panel) display connections, and unlike DVI/HDMI and LVDS standards where differential pairs are fixed to transmitting RGB pixels and a clock signal, the DisplayPort protocol is based on small data packets with clock embedded
. The use of data packets also allows for DisplayPort to be extensible, meaning additional features can be added over time without significant changes to the interface itself.
The DisplayPort connector supports 1, 2, or 4 differential data pairs (lanes) in a Main Link, each with a raw bit rate of 1.62, 2.7, or 5.4 Gbit/s per lane with self-clock running at 162, 270, or 540 MHz. Data is 8b/10b encoded
where each 8 bits of information are encoded with a 10 bit symbol. So the effective data rates after decoding are 1.296, 2.16, and 4.32 Gbit/s per lane (or 80% of the total).
Both video and audio signals are optional; a Displayport signal can be used to transport audio-only content, video-only content, or both audio and video simultaneously. The video signal path supports 6 to 16 bits per color channel
, and the audio path supports up to 8 channels of 24 bit 192 kHz uncompressed PCM audio which can encapsulate compressed audio formats in the audio stream. A bi-directional, half-duplex auxiliary channel carries device management and device control data for the Main Link, such as VESA EDID
, MCCS
, and DPMS
standards. In addition, the interface is capable of carrying bi-directional USB signals.
The DisplayPort signal is not compatible with HDMI
or DVI
. However, dual-mode ports marked with a DP++ logo can transmit single-link HDMI
and DVI
signals through DisplayPort cabling; this requires passive external adapters which convert to the higher signal levels used by DVI/HDMI. Dual-link DVI and analog VGA are supported through powered adapters which perform active conversion (see Compatibility with HDMI/DVI below).
, increased AUX channel bandwidth (from 1 Mbit/s to 720 Mbit/s), support for more color spaces including xvYCC
, scRGB and Adobe RGB 1998, and Global Time Code (GTC) for sub 1 µs audio/video synchronisation. Also Apple Inc.'s Mini DisplayPort
connector, which is much smaller and more appropriate for laptop computers and other small devices, is compatible with the new standard.
) is a standard announced by Apple in the fourth quarter of 2008. Shortly after announcing the Mini DisplayPort, Apple announced that it would license the connector technology with no fee. The following year, in early 2009, VESA announced that Mini DisplayPort would be included in the upcoming DisplayPort 1.2 specification.
Embedded DisplayPort (eDP) 1.0 standard was adopted in December 2008. It aims to define a standardized display panel interface for internal connections; e.g., graphics cards to notebook display panels. It supports advanced power-saving features including seamless refresh rate switching. Version 1.1 was approved in October 2009 followed by version 1.1a in November 2009. Version 1.2 was approved in May 2010 and supports DisplayPort 1.2 data rates, 120 Hz sequential color monitors, and a new display panel control protocol that works through the AUX channel. Version 1.3 was published in February 2011; it includes a new Panel Self-Refresh (PSR) feature developed to save system power and further extend battery life in portable PC systems. PSR mode allows GPU to enter power saving state in between frame updates by including framebuffer
memory in the display panel controller.
Direct Drive Monitor 1.0 standard was approved in December 2008. It allows for controller-less monitors where the display panel is directly driven by the DisplayPort signal, although the supported resolutions and color depth are limited to 2-lane operation.
Internal DisplayPort (iDP) 1.0 was approved in April 2010. The iDP standard defines an internal link between a digital TV system on a chip controller and the display panel's timing controller. It aims to replace currently used internal LVDS lanes with DisplayPort connection. iDP features unique physical interface and protocols, which are not directly compatible with DisplayPort and are not applicable to external connection, however they enable very high resolution and refresh rates while providing simplicity and extensibility. iDP features non-variable 2.7 GHz clock and is nominally rated at 3.24 Gbit/s data rate per lane, with up to 16 lanes in a bank, resulting in 6-fold decrease in wiring requirements over LVDS for a 1080p24 signal; other data rates are also possible. iDP was built with simplicity in mind and it doesn't support AUX channel, content protection, or multiple streams; however it does support frame sequential and line interleaved stereo 3D.
Portable Digital Media Interface (PDMI
) is an interconnection between docking stations/display devices and portable media players, which includes 2-lane DisplayPort v1.1a connection. It has been ratified in February 2010 as ANSI
/CEA
-2017-A.
Wireless DisplayPort is a standard which will enable DisplayPort 1.2 bandwidth and feature set for cable-free applications operating in 60 GHz radio band; this was announced on November 2010 by WiGig Alliance
and VESA as a cooperative effort.
, which uses 128-bit AES
encryption. It also features full authentication and session key establishment (each encryption session is independent). There is an independent revocation system. This portion of the standard is licensed separately. It also adds support for verifying the proximity of the receiver and transmitter, a technique intended to ensure users are not bypassing the content protection system to send data out to distant, unauthorized users.
DisplayPort 1.1 added support for industry-standard 56-bit HDCP (High-bandwidth Digital Content Protection
) revision 1.3, which has been compromised in September 2010 with the release of HDCP master key.
DisplayPort is capable of directly emitting single-link HDMI
and DVI
signals using Dual-mode DisplayPort. VESA has issued interoperability guidelines for supporting single-link DVI and HDMI through a DisplayPort connection using a relatively simple passive adapter that adjusts for the lower voltages required by DisplayPort. Dual-mode DisplayPort chipset detects the DVI or HDMI passive adapter and switches to DVI/HDMI mode which uses the 4-lane main DisplayPort link and AUX channel link to transmit 3 TMDS signals plus a Clock signal and Display Data Channel
data/clock from the chipset. Dual-mode compatible ports are marked with the DP++ logo; most current DisplayPort graphics cards and monitors support this mode.
A notable limitation is that dual-mode can only transmit single-link DVI/HDMI, as the number of pins in the DisplayPort connector is insufficient for dual-link connections and an active converter is needed for Dual-Link DVI (and analog component video
such as VGA); however, VESA foresees that all HDMI conversion will eventually be handled by active adapters which act as DisplayPort Sink devices, in order to facilitate easier updates to latest HDMI specs and support multiple streams, dual-link HDMI, or DisplayPort connection with fewer than 4 lanes, as in PDMI
. DVI 1.0 spec was finalized in 1999 and the DVI industry consortium has since disbanded, which means future updates to DVI specification are unlikely; also, although dual-link HDMI Type B is defined in the HDMI specification, it has not seen any practical use so far.
The DisplayPort website states that DisplayPort is expected to complement HDMI
. DisplayPort can emit HDMI video and audio using passive adapters connected to Dual-mode ports, and supports HDCP content protection used in the HDMI standard.
DisplayPort lacked native support for the xvYCC
color space, but that has been added in DisplayPort version 1.2. HDMI supports Consumer Electronics Control (CEC) signals, and these are lacking from DisplayPort. However, VESA asserts that CEC can be transmitted over the AUX channel if needed; additional color spaces defined in Vendor Specific Block could also be defined using CEA EDID extensions, which were designed for DVI-mode connections which lack VSB communications.
DisplayPort is currently royalty free, while the HDMI royalty is 4 cents per device and has an annual fee of $10,000 for high volume manufacturers. HDMI Licensing LLC claims that, like HDMI, the DisplayPort specification allows for compensation from implementers to unspecified rights holders.
DisplayPort has several advantages over VGA, DVI and LVDS.
was the first company to release consumer products with an external DisplayPort transmitter with their 790G chipset and Radeon HD 2000 series graphics cards, which were unveiled at AMD's Technology Analyst Day on July 25, 2007. They later implemented the DisplayPort transmitter on the GPU chip in Radeon HD 3600
and HD 3400
graphics products, unveiled at AMD Financial Analyst Day on 13 December 2007. These products received DisplayPort certification from VESA in March 2008.
In 2008, DisplayPort connectors were featured on many graphics cards based on the ATI/AMD HD 4000 series
. In 2009, the HD 5000 series graphics cards incorporated a DisplayPort connector as standard, along with two Dual-link DVI connectors and a HDMI connector; the Eyefinity versions carry 4 Mini DisplayPort
connectors. Support for DisplayPort audio was introduced by AMD in the Catalyst 9.12 hotfix.
As of February 2011, the latest HD 6000
series graphics cards feature support for DisplayPort 1.2, allowing daisy-chaining multiple monitors from the same connector; a DisplayPort hub containing three Dual-link DVI connectors is also available.
introduced several products featuring a Mini DisplayPort
as the sole video connector. This connector was proprietary at that time. Later, with versions 1.1a and 1.2 of the specification, it became part of the standard. Between October 2009 and February 2011, all Mac models feature Mini DisplayPort connector; during that time iMac, MacBook, MacBook Air, MacBook Pro, and Xserve models used Mini DisplayPort as their sole video output while the Mac Mini and Mac Pro models had both a Mini DisplayPort and either a DVI port (Mac Pro) or an HDMI port (Mac Mini). On February 24, 2011 MacBook Pros began shipping with Thunderbolt (known previously by Intel codename Light Peak) which provides both DisplayPort and PCI Express functionality in a single port. On May 3, 2011 Apple introduced their first iMac lineup with Thunderbolt built in. The iMac 21 in (53.3 cm) received one and the iMac 27 in (68.6 cm) received two Thunderbolt ports.
Apple's latest 24 in (61 cm) and 27 in (68.6 cm) LED Cinema Display
s feature Mini DisplayPort connector. The recent 27-inch iMac model allows the Mini DisplayPort to act as an input, turning the iMac into a standalone display.
implementing DisplayPort was demonstrated in early May 2007.
The Dell
3008WFP 30 inches (76.2 cm), released in January 2008 was the first monitor to support DisplayPort. The Dell 2408WFP 24 inches (61 cm) followed in April 2008. Many other Dell monitors also offer the DisplayPort interface, including four of their 'Professional' series and five of their 'UltraSharp' series monitors.
The following companies have additionally announced their intention to implement or support DisplayPort, eDP or iDP:
show that DisplayPort was on 5.1 percent of commercial desktops and 2.1 percent on commercial notebooks in 2009. However, they predict that the figure for commercial desktops will grow to 89.5 percent, and for commercial notebooks to 95 percent by 2014. The main factor behind this is the phase out of VGA, and that both Intel and AMD will also stop supporting low-voltage differential signaling (LVDS), by 2013.
VESA
VESA is an international standards body for computer graphics founded in 1989 by NEC Home Electronics and eight other video display adapter manufacturers.VESA's initial goal was to produce a standard for 800×600 SVGA resolution video displays...
(VESA). The specification defines a royalty-free digital interconnect for audio and video. The interface is primarily used to connect a video source to a display device
Display device
A display device is an output device for presentation of information in visual or tactile form...
such as a computer monitor or television set
Television set
A television set is a device that combines a tuner, display, and speakers for the purpose of viewing television. Television sets became a popular consumer product after the Second World War, using vacuum tubes and cathode ray tube displays...
.
The first version 1.0 was approved by VESA on May 3, 2006. Two updated revisions have since been approved starting with 1.1a on April 2, 2007 followed by the current standard 1.2 on December 22, 2009.
DisplayPort is designed to replace Digital Visual Interface
Digital Visual Interface
The Digital Visual Interface is a video interface standard covering the transmission of video between a source device and a display device. The DVI standard has achieved widespread acceptance in the PC industry, both in desktop PCs and monitors...
(DVI) and Video Graphics Array
Video Graphics Array
Video Graphics Array refers specifically to the display hardware first introduced with the IBM PS/2 line of computers in 1987, but through its widespread adoption has also come to mean either an analog computer display standard, the 15-pin D-subminiature VGA connector or the 640×480 resolution...
(VGA), as well as replace internal digital LVDS links in computer monitor panels and TV panels. DisplayPort can also provide the same functionality as HDMI
High-Definition Multimedia Interface
HDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
but is not expected to displace HDMI in high-definition consumer electronics devices.
Overview
DisplayPort is the first display interface to rely on packetized data transmission similar to other data communication protocols such as EthernetEthernet
Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....
, USB, and PCI Express
PCI Express
PCI Express , officially abbreviated as PCIe, is a computer expansion card standard designed to replace the older PCI, PCI-X, and AGP bus standards...
. It supports both external (box-to-box) and internal (laptop LCD panel) display connections, and unlike DVI/HDMI and LVDS standards where differential pairs are fixed to transmitting RGB pixels and a clock signal, the DisplayPort protocol is based on small data packets with clock embedded
Self-clocking signal
In telecommunications and electronics, a self-clocking signal is one that can be decoded without the need for a separate clock signal or other source of synchronization...
. The use of data packets also allows for DisplayPort to be extensible, meaning additional features can be added over time without significant changes to the interface itself.
The DisplayPort connector supports 1, 2, or 4 differential data pairs (lanes) in a Main Link, each with a raw bit rate of 1.62, 2.7, or 5.4 Gbit/s per lane with self-clock running at 162, 270, or 540 MHz. Data is 8b/10b encoded
8B/10B encoding
In telecommunications, 8b/10b is a line code that maps 8-bit symbols to 10-bit symbols to achieve DC-balance and bounded disparity, and yet provide enough state changes to allow reasonable clock recovery. This means that the difference between the count of 1s and 0s in a string of at least 20 bits...
where each 8 bits of information are encoded with a 10 bit symbol. So the effective data rates after decoding are 1.296, 2.16, and 4.32 Gbit/s per lane (or 80% of the total).
Both video and audio signals are optional; a Displayport signal can be used to transport audio-only content, video-only content, or both audio and video simultaneously. The video signal path supports 6 to 16 bits per color channel
Channel (digital image)
Color digital images are made of pixels, and pixels are made of combinations of primary colors. A channel in this context is the grayscale image of the same size as a color image, made of just one of these primary colors. For instance, an image from a standard digital camera will have a red, green...
, and the audio path supports up to 8 channels of 24 bit 192 kHz uncompressed PCM audio which can encapsulate compressed audio formats in the audio stream. A bi-directional, half-duplex auxiliary channel carries device management and device control data for the Main Link, such as VESA EDID
Extended display identification data
Extended display identification data is a data structure provided by a digital display to describe its capabilities to a video source . It is what enables a modern personal computer to know what kinds of monitors are connected to it. EDID is defined by a standard published by the Video...
, MCCS
Monitor Control Command Set
VESA Monitor Command Control Set or MCCS is a computer standard developed by Video Electronics Standards Association. It defines a binary protocol for controlling the properties of computer monitors from a host device such as PC, set-top box, etc....
, and DPMS
VESA Display Power Management Signaling
VESA Display Power Management Signaling is a standard from the VESA consortium for managing the power supply of video monitors for computers through the graphics card e.g.; shut off the monitor after the computer has been unused for some time , to save power.- History :DPMS 1.0 was issued by VESA...
standards. In addition, the interface is capable of carrying bi-directional USB signals.
The DisplayPort signal is not compatible with HDMI
High-Definition Multimedia Interface
HDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
or DVI
Digital Visual Interface
The Digital Visual Interface is a video interface standard covering the transmission of video between a source device and a display device. The DVI standard has achieved widespread acceptance in the PC industry, both in desktop PCs and monitors...
. However, dual-mode ports marked with a DP++ logo can transmit single-link HDMI
High-Definition Multimedia Interface
HDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
and DVI
Digital Visual Interface
The Digital Visual Interface is a video interface standard covering the transmission of video between a source device and a display device. The DVI standard has achieved widespread acceptance in the PC industry, both in desktop PCs and monitors...
signals through DisplayPort cabling; this requires passive external adapters which convert to the higher signal levels used by DVI/HDMI. Dual-link DVI and analog VGA are supported through powered adapters which perform active conversion (see Compatibility with HDMI/DVI below).
1.0 to 1.1
DisplayPort 1.0 supports a maximum of 8.64 Gbit/s data rate over a 2 meter cable. DisplayPort 1.1 also supports devices which implement alternative link layers such as fiber optic, allowing a much longer reach between source and display without signal degradation, although alternative implementations are not standardized. It also supports HDCP in addition to DisplayPort Content Protection (DPCP).1.2
DisplayPort version 1.2 was approved on December 22, 2009. The most significant improvement of the new version is the doubling of the effective bandwidth to 17.28 Gbit/s, which allows increased resolutions, higher refresh rates, and greater color depth. Other improvements include multiple independent video streams (daisy-chain connection with multiple monitors), support for stereoscopic 3DStereoscopy
Stereoscopy refers to a technique for creating or enhancing the illusion of depth in an image by presenting two offset images separately to the left and right eye of the viewer. Both of these 2-D offset images are then combined in the brain to give the perception of 3-D depth...
, increased AUX channel bandwidth (from 1 Mbit/s to 720 Mbit/s), support for more color spaces including xvYCC
XvYCC
xvYCC or Extended-gamut YCC is a color space that can be used in the video electronics of television sets to support a gamut 1.8 times as large as that of the sRGB color space...
, scRGB and Adobe RGB 1998, and Global Time Code (GTC) for sub 1 µs audio/video synchronisation. Also Apple Inc.'s Mini DisplayPort
Mini DisplayPort
The Mini DisplayPort is a miniaturized version of the DisplayPort digital audio-visual interface. Apple, Inc. announced the development in the fourth quarter of 2008, and now applies it in the LED Cinema Display and in all new Macintosh computers: MacBook, MacBook Pro, MacBook Air, iMac, Mac mini,...
connector, which is much smaller and more appropriate for laptop computers and other small devices, is compatible with the new standard.
Companion standards
Mini DisplayPort (mDPMini DisplayPort
The Mini DisplayPort is a miniaturized version of the DisplayPort digital audio-visual interface. Apple, Inc. announced the development in the fourth quarter of 2008, and now applies it in the LED Cinema Display and in all new Macintosh computers: MacBook, MacBook Pro, MacBook Air, iMac, Mac mini,...
) is a standard announced by Apple in the fourth quarter of 2008. Shortly after announcing the Mini DisplayPort, Apple announced that it would license the connector technology with no fee. The following year, in early 2009, VESA announced that Mini DisplayPort would be included in the upcoming DisplayPort 1.2 specification.
Embedded DisplayPort (eDP) 1.0 standard was adopted in December 2008. It aims to define a standardized display panel interface for internal connections; e.g., graphics cards to notebook display panels. It supports advanced power-saving features including seamless refresh rate switching. Version 1.1 was approved in October 2009 followed by version 1.1a in November 2009. Version 1.2 was approved in May 2010 and supports DisplayPort 1.2 data rates, 120 Hz sequential color monitors, and a new display panel control protocol that works through the AUX channel. Version 1.3 was published in February 2011; it includes a new Panel Self-Refresh (PSR) feature developed to save system power and further extend battery life in portable PC systems. PSR mode allows GPU to enter power saving state in between frame updates by including framebuffer
Framebuffer
A framebuffer is a video output device that drives a video display from a memory buffer containing a complete frame of data.The information in the memory buffer typically consists of color values for every pixel on the screen...
memory in the display panel controller.
Direct Drive Monitor 1.0 standard was approved in December 2008. It allows for controller-less monitors where the display panel is directly driven by the DisplayPort signal, although the supported resolutions and color depth are limited to 2-lane operation.
Internal DisplayPort (iDP) 1.0 was approved in April 2010. The iDP standard defines an internal link between a digital TV system on a chip controller and the display panel's timing controller. It aims to replace currently used internal LVDS lanes with DisplayPort connection. iDP features unique physical interface and protocols, which are not directly compatible with DisplayPort and are not applicable to external connection, however they enable very high resolution and refresh rates while providing simplicity and extensibility. iDP features non-variable 2.7 GHz clock and is nominally rated at 3.24 Gbit/s data rate per lane, with up to 16 lanes in a bank, resulting in 6-fold decrease in wiring requirements over LVDS for a 1080p24 signal; other data rates are also possible. iDP was built with simplicity in mind and it doesn't support AUX channel, content protection, or multiple streams; however it does support frame sequential and line interleaved stereo 3D.
Portable Digital Media Interface (PDMI
PDMI
PDMI is an interconnection standard for portable media players. It has been developed by CEA as ANSI/CEA-2017-A standard Common Interconnection for Portable Media Players in February 2010...
) is an interconnection between docking stations/display devices and portable media players, which includes 2-lane DisplayPort v1.1a connection. It has been ratified in February 2010 as ANSI
Ansi
Ansi is a village in Kaarma Parish, Saare County, on the island of Saaremaa, Estonia....
/CEA
Consumer Electronics Association
The Consumer Electronics Association is a standards and trade organization for the consumer electronics industry in the United States. The Consumer Electronics Association is the preeminent trade association promoting growth in the $173 billion U.S...
-2017-A.
Wireless DisplayPort is a standard which will enable DisplayPort 1.2 bandwidth and feature set for cable-free applications operating in 60 GHz radio band; this was announced on November 2010 by WiGig Alliance
Wireless Gigabit Alliance
The Wireless Gigabit Alliance is an organization promoting the adoption of multi-gigabit speed wireless communications technology operating over the unlicensed 60 GHz frequency band....
and VESA as a cooperative effort.
DRM
DisplayPort 1.0 includes optional DPCP (DisplayPort Content Protection) from PhilipsPhilips
Koninklijke Philips Electronics N.V. , more commonly known as Philips, is a multinational Dutch electronics company....
, which uses 128-bit AES
Advanced Encryption Standard
Advanced Encryption Standard is a specification for the encryption of electronic data. It has been adopted by the U.S. government and is now used worldwide. It supersedes DES...
encryption. It also features full authentication and session key establishment (each encryption session is independent). There is an independent revocation system. This portion of the standard is licensed separately. It also adds support for verifying the proximity of the receiver and transmitter, a technique intended to ensure users are not bypassing the content protection system to send data out to distant, unauthorized users.
DisplayPort 1.1 added support for industry-standard 56-bit HDCP (High-bandwidth Digital Content Protection
High-Bandwidth Digital Content Protection
High-bandwidth Digital Content Protection is a form of digital copy protection developed by Intel Corporation to prevent copying of digital audio and video content as it travels across connections...
) revision 1.3, which has been compromised in September 2010 with the release of HDCP master key.
Technical specifications
- Forward link channel with 1 to 4 lanes; effective data rate 1.296, 2.16, or 4.32 Gbit/s per lane (total 5.184, 8.64, or 17.28 Gbit/s for a 4-lane link)†.
- 8b/10b8B/10B encodingIn telecommunications, 8b/10b is a line code that maps 8-bit symbols to 10-bit symbols to achieve DC-balance and bounded disparity, and yet provide enough state changes to allow reasonable clock recovery. This means that the difference between the count of 1s and 0s in a string of at least 20 bits...
encoding provides DC-balancing and Embedded Clock within serial channel (10 bit symbols, 25% coding overhead) - Supports RGBRGB color spaceAn RGB color space is any additive color space based on the RGB color model. A particular RGB color space is defined by the three chromaticities of the red, green, and blue additive primaries, and can produce any chromaticity that is the triangle defined by those primary colors...
(unspecified) and YCbCrYCbCrYCbCr or Y′CbCr, sometimes written or , is a family of color spaces used as a part of the color image pipeline in video and digital photography systems. Y′ is the luma component and CB and CR are the blue-difference and red-difference chroma components...
(ITU-RITU-RThe ITU Radiocommunication Sector is one of the three sectors of the International Telecommunication Union and is responsible for radio communication....
BT.601-5 and BT.709-4Rec. 709ITU-R Recommendation BT.709, more commonly known by the abbreviations Rec. 709 or BT.709, standardizes the format of high-definition television, having 16:9 aspect ratio. The first edition of the standard was approved in 1990....
) color spaceColor spaceA color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components...
s, 4:4:4 and 4:2:2 chroma subsamplingChroma subsamplingChroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance....
- sRGB, Adobe RGB 1998, DCI-P3, RGB XR, scRGB, xvYCC, Y-only, Simple Color Profile (version 1.2)
- Supports color depthColor depthIn computer graphics, color depth or bit depth is the number of bits used to represent the color of a single pixel in a bitmapped image or video frame buffer. This concept is also known as bits per pixel , particularly when specified along with the number of bits used...
of 6, 8, 10, 12 and 16 bits per color component - Optional 8-channel audio with sampling rates up to 24 bit 192 kHz, supports encapsulation of audio compression formats
- Bidirectional half-duplex AUX channel, 1 Mbit/s (v1.0) or optional 720 Mbit/s (v1.2)
- Supports stereoscopic 3DStereoscopyStereoscopy refers to a technique for creating or enhancing the illusion of depth in an image by presenting two offset images separately to the left and right eye of the viewer. Both of these 2-D offset images are then combined in the brain to give the perception of 3-D depth...
formats: frame sequential (v1.1a), field sequential, side-by-side, top-bottom, line interleaved, pixel interleaved and dual interface (v1.2) - Optional dual-mode support generates TMDSTransition Minimized Differential SignalingTransition-minimized differential signaling is a technology for transmitting high-speed serial data and is used by the DVI and HDMI video interfaces, as well as other digital communication interfaces....
and clock for single-link DVIDigital Visual InterfaceThe Digital Visual Interface is a video interface standard covering the transmission of video between a source device and a display device. The DVI standard has achieved widespread acceptance in the PC industry, both in desktop PCs and monitors...
/HDMIHDMIHDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
signaling with a simple line-level conversion dongle. - Supports up to 63 video and audio streams with time-division transport multiplexing and hot-plug bandwidth allocation (from version 1.2)
- 128-bit AESAdvanced Encryption StandardAdvanced Encryption Standard is a specification for the encryption of electronic data. It has been adopted by the U.S. government and is now used worldwide. It supersedes DES...
DisplayPort Content Protection (DPCP) support, and support for 40-bit High-bandwidth Digital Content ProtectionHigh-Bandwidth Digital Content ProtectionHigh-bandwidth Digital Content Protection is a form of digital copy protection developed by Intel Corporation to prevent copying of digital audio and video content as it travels across connections...
(HDCP) from version 1.1 onwards. - Supports internal and external connections so that one standard can be used by computer makers reducing costs.
| Resolution × color depth @ frame rate | CVT Coordinated Video Timings Coordinated Video Timings is a standard by VESA which defines the timings of the component video signal. Initially intended for use by computer monitors and video cards, the standard made its way into consumer televisions.... |
CVT-R | CEA-861-E | |
|---|---|---|---|---|
| 1280 × 720 × 24 bpp Color depth In computer graphics, color depth or bit depth is the number of bits used to represent the color of a single pixel in a bitmapped image or video frame buffer. This concept is also known as bits per pixel , particularly when specified along with the number of bits used... @ 60 Hz |
1.79 | 1.54 | 1.78 | |
| 1920 × 1080 × 24 bpp @ 60 Hz | 4.15 | 3.33 | 3.56 | |
| 1920 × 1200 × 30 bpp @ 60 Hz | 5.81 | 4.62 | - | |
| 2560 × 1600 × 30 bpp @ 60 Hz | 10.46 | 8.06 | - | |
| 3840 × 2160 × 30 bpp @ 60 Hz | 21.39 | 16.00 | - | |
| For RGB and YCbCr 4:4:4 encodings, bpp = 3 × bpc (bits per channel); for YCbCr 4:2:2 subsampling Chroma subsampling Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance.... , bpp = 2 × bpc. |
||||
Compatibility with HDMI/DVI
| DisplayPort pins | DVI 1.0/HDMI mode |
|---|---|
| Main Link Lane 0 | TMDS Channel 2 |
| Main Link Lane 1 | TMDS Channel 1 |
| Main Link Lane 2 | TMDS Channel 0 |
| Main Link Lane 3 | TMDS Clock |
| AUX CH+ | DDC Clock |
| AUX CH- | DDC Data |
| DP_PWR | DP_PWR |
| Hot Plug Detect | Hot Plug Detect |
| Config 1 | Cable Adaptor Detect |
| Config 2 | CEC (HDMI only) |
DisplayPort is capable of directly emitting single-link HDMI
HDMI
HDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
and DVI
Digital Visual Interface
The Digital Visual Interface is a video interface standard covering the transmission of video between a source device and a display device. The DVI standard has achieved widespread acceptance in the PC industry, both in desktop PCs and monitors...
signals using Dual-mode DisplayPort. VESA has issued interoperability guidelines for supporting single-link DVI and HDMI through a DisplayPort connection using a relatively simple passive adapter that adjusts for the lower voltages required by DisplayPort. Dual-mode DisplayPort chipset detects the DVI or HDMI passive adapter and switches to DVI/HDMI mode which uses the 4-lane main DisplayPort link and AUX channel link to transmit 3 TMDS signals plus a Clock signal and Display Data Channel
Display Data Channel
The Display Data Channel or DDC is a collection of digital communication protocols between a computer display and a graphics adapter that enables the display to communicate its supported display modes to the adapter and to enable the computer host to adjust monitor parameters, such as brightness...
data/clock from the chipset. Dual-mode compatible ports are marked with the DP++ logo; most current DisplayPort graphics cards and monitors support this mode.
A notable limitation is that dual-mode can only transmit single-link DVI/HDMI, as the number of pins in the DisplayPort connector is insufficient for dual-link connections and an active converter is needed for Dual-Link DVI (and analog component video
Component video
Component video is a video signal that has been split into two or more component channels. In popular use, it refers to a type of component analog video information that is transmitted or stored as three separate signals...
such as VGA); however, VESA foresees that all HDMI conversion will eventually be handled by active adapters which act as DisplayPort Sink devices, in order to facilitate easier updates to latest HDMI specs and support multiple streams, dual-link HDMI, or DisplayPort connection with fewer than 4 lanes, as in PDMI
PDMI
PDMI is an interconnection standard for portable media players. It has been developed by CEA as ANSI/CEA-2017-A standard Common Interconnection for Portable Media Players in February 2010...
. DVI 1.0 spec was finalized in 1999 and the DVI industry consortium has since disbanded, which means future updates to DVI specification are unlikely; also, although dual-link HDMI Type B is defined in the HDMI specification, it has not seen any practical use so far.
Relationship with HDMI
Most of the DisplayPort supporters are computer companies including Apple, Dell, HP, Lenovo, Fujitsu, Toshiba and Acer, some of which have released several computer monitors that support DisplayPort and some also with HDMI.The DisplayPort website states that DisplayPort is expected to complement HDMI
HDMI
HDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
. DisplayPort can emit HDMI video and audio using passive adapters connected to Dual-mode ports, and supports HDCP content protection used in the HDMI standard.
DisplayPort lacked native support for the xvYCC
XvYCC
xvYCC or Extended-gamut YCC is a color space that can be used in the video electronics of television sets to support a gamut 1.8 times as large as that of the sRGB color space...
color space, but that has been added in DisplayPort version 1.2. HDMI supports Consumer Electronics Control (CEC) signals, and these are lacking from DisplayPort. However, VESA asserts that CEC can be transmitted over the AUX channel if needed; additional color spaces defined in Vendor Specific Block could also be defined using CEA EDID extensions, which were designed for DVI-mode connections which lack VSB communications.
DisplayPort is currently royalty free, while the HDMI royalty is 4 cents per device and has an annual fee of $10,000 for high volume manufacturers. HDMI Licensing LLC claims that, like HDMI, the DisplayPort specification allows for compensation from implementers to unspecified rights holders.
Advantages over legacy standards
In December 2010 it was announced that several computer vendors and display makers including Intel, AMD, Dell, Lenovo, Samsung and LG would stop using LVDS from 2013 and legacy DVI and VGA connectors from 2015, replacing them with DisplayPort and HDMI. Likewise, HP expects that DisplayPort will completely displace VGA and DVI by 2013. However, many are still using those connectors, so it doesn't seem to have much effect right now. Most laptops still have HDMI and legacy VGA ports, but not DisplayPort or DVI.DisplayPort has several advantages over VGA, DVI and LVDS.
- Open (except HDCP), royalty-free and extensible standard to help broad adoption
- Fewer lanes with embedded self-clock, reduced EMIElectromagnetic interferenceElectromagnetic interference is disturbance that affects an electrical circuit due to either electromagnetic induction or electromagnetic radiation emitted from an external source. The disturbance may interrupt, obstruct, or otherwise degrade or limit the effective performance of the circuit...
with data scrambling and spread spectrumSpread spectrumSpread-spectrum techniques are methods by which a signal generated in a particular bandwidth is deliberately spread in the frequency domain, resulting in a signal with a wider bandwidth...
mode - Based on a micro-packet protocol
- Allows easy expansion of the standard with multiple data types
- Flexible allocation of available bandwidth between audio and video
- Multiple video streams over single physical connection (version 1.2)
- Long-distance transmission over alternative physical media such as optical fiber (version 1.1a)
- Supports high resolution displays and multiple displays with a single cable
- 17.28 Gbit/s of effective video bandwidth, enough for supporting 4 simultaneous 1080p60 displays (CEA-861 timings) or 2,560 × 1,600 × 30 bit @120 Hz (CVT-R timings)Dual-link DVI is limited in resolution and speed by the quality and therefore the bandwidth of the DVI cable, the quality of the transmitter, and the quality of the receiver; can only drive one monitor at a time; and cannot send audio data. HDMI 1.3 and 1.4 are limited by the standard to effectively 8.16 Gbit/s or 340 MHz, and can only drive one monitor at a time. VGA connectorVGA connectorA Video Graphics Array connector is a three-row 15-pin DE-15 connector. The 15-pin VGA connector is found on many video cards, computer monitors, and some high definition television sets...
s have no defined maximum resolution or speed, but their analog nature limits their bandwidth.
- 17.28 Gbit/s of effective video bandwidth, enough for supporting 4 simultaneous 1080p60 displays (CEA-861 timings) or 2,560 × 1,600 × 30 bit @120 Hz (CVT-R timings)Dual-link DVI is limited in resolution and speed by the quality and therefore the bandwidth of the DVI cable, the quality of the transmitter, and the quality of the receiver; can only drive one monitor at a time; and cannot send audio data. HDMI 1.3 and 1.4 are limited by the standard to effectively 8.16 Gbit/s or 340 MHz, and can only drive one monitor at a time. VGA connector
- Designed to support internal chip-to-chip communication
- Aimed at replacing internal LVDS links to display panels with a unified link interface
- Compatible with low-voltage signaling used with sub-nanometer90 nanometerThe 90 nm process refers to the level of CMOS process technology that was reached in the 2002–2003 timeframe, by most leading semiconductor companies, like Intel, AMD, Infineon, Texas Instruments, IBM, and TSMC....
CMOSCMOSComplementary metal–oxide–semiconductor is a technology for constructing integrated circuits. CMOS technology is used in microprocessors, microcontrollers, static RAM, and other digital logic circuits...
fabrication - Can drive display panels directly, eliminating scaling and control circuits and allowing for cheaper and slimmer displays
- Link training with adjustable amplitude and preemphasis adapts to differing cable lengths and signal quality
- Reduced bandwidth transmission for 15 meter cable (at least 1920x1080p60, 24 bpp)
- Full bandwidth transmission for 2 meter cable
- High-speed auxiliary channel for DDC, EDID, MCCS, DPMS, HDCP, adapter identification etc. traffic
- Can be used for transmitting bi-directional USB, touch-panel data, CEC, etc.
- Self-latching connector
Products
Since its introduction in 2006, DisplayPort has slowly gained popularity within the computer industry, and as of 2010, DisplayPort connectors are featured on many graphic cards, displays, and notebook computers.ATI/AMD
AMD/ATI TechnologiesATI Technologies
ATI Technologies Inc. was a semiconductor technology corporation based in Markham, Ontario, Canada, that specialized in the development of graphics processing units and chipsets. Founded in 1985 as Array Technologies Inc., the company was listed publicly in 1993 and was acquired by Advanced Micro...
was the first company to release consumer products with an external DisplayPort transmitter with their 790G chipset and Radeon HD 2000 series graphics cards, which were unveiled at AMD's Technology Analyst Day on July 25, 2007. They later implemented the DisplayPort transmitter on the GPU chip in Radeon HD 3600
Radeon R600
The graphics processing unit codenamed the Radeon R600 is the foundation of the Radeon HD 2000/3000 series and the FireGL 2007 series video cards developed by ATI Technologies...
and HD 3400
Radeon R600
The graphics processing unit codenamed the Radeon R600 is the foundation of the Radeon HD 2000/3000 series and the FireGL 2007 series video cards developed by ATI Technologies...
graphics products, unveiled at AMD Financial Analyst Day on 13 December 2007. These products received DisplayPort certification from VESA in March 2008.
In 2008, DisplayPort connectors were featured on many graphics cards based on the ATI/AMD HD 4000 series
Radeon R700
The Radeon R700 is the engineering codename for a graphics processing unit series developed by Advanced Micro Devices under the ATI brand name. The foundation chip, codenamed RV770, was announced and demonstrated on June 16, 2008 as part of the FireStream 9250 and Cinema 2.0 initiative launch media...
. In 2009, the HD 5000 series graphics cards incorporated a DisplayPort connector as standard, along with two Dual-link DVI connectors and a HDMI connector; the Eyefinity versions carry 4 Mini DisplayPort
Mini DisplayPort
The Mini DisplayPort is a miniaturized version of the DisplayPort digital audio-visual interface. Apple, Inc. announced the development in the fourth quarter of 2008, and now applies it in the LED Cinema Display and in all new Macintosh computers: MacBook, MacBook Pro, MacBook Air, iMac, Mac mini,...
connectors. Support for DisplayPort audio was introduced by AMD in the Catalyst 9.12 hotfix.
As of February 2011, the latest HD 6000
Northern Islands (GPU family)
The Northern Islands series is a family of GPUs developed by Advanced Micro Devices for its Radeon line, based on the 40 nm process.Starting with this family, the former ATI brand was officially discontinued in favor of making a correlation between the graphics products and the AMD branding for...
series graphics cards feature support for DisplayPort 1.2, allowing daisy-chaining multiple monitors from the same connector; a DisplayPort hub containing three Dual-link DVI connectors is also available.
Apple
On 14 October 2008, AppleApple Computer
Apple Inc. is an American multinational corporation that designs and markets consumer electronics, computer software, and personal computers. The company's best-known hardware products include the Macintosh line of computers, the iPod, the iPhone and the iPad...
introduced several products featuring a Mini DisplayPort
Mini DisplayPort
The Mini DisplayPort is a miniaturized version of the DisplayPort digital audio-visual interface. Apple, Inc. announced the development in the fourth quarter of 2008, and now applies it in the LED Cinema Display and in all new Macintosh computers: MacBook, MacBook Pro, MacBook Air, iMac, Mac mini,...
as the sole video connector. This connector was proprietary at that time. Later, with versions 1.1a and 1.2 of the specification, it became part of the standard. Between October 2009 and February 2011, all Mac models feature Mini DisplayPort connector; during that time iMac, MacBook, MacBook Air, MacBook Pro, and Xserve models used Mini DisplayPort as their sole video output while the Mac Mini and Mac Pro models had both a Mini DisplayPort and either a DVI port (Mac Pro) or an HDMI port (Mac Mini). On February 24, 2011 MacBook Pros began shipping with Thunderbolt (known previously by Intel codename Light Peak) which provides both DisplayPort and PCI Express functionality in a single port. On May 3, 2011 Apple introduced their first iMac lineup with Thunderbolt built in. The iMac 21 in (53.3 cm) received one and the iMac 27 in (68.6 cm) received two Thunderbolt ports.
Apple's latest 24 in (61 cm) and 27 in (68.6 cm) LED Cinema Display
Apple Cinema Display
The Apple Cinema Display was a line of flat panel computer monitors introduced in September 1999 by Apple Inc. It was initially sold alongside the older line of Studio Displays, but eventually replaced them. In July 2011, Apple replaced it with the Apple Thunderbolt Display...
s feature Mini DisplayPort connector. The recent 27-inch iMac model allows the Mini DisplayPort to act as an input, turning the iMac into a standalone display.
Dell
A concept monitor by DellDell
Dell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...
implementing DisplayPort was demonstrated in early May 2007.
The Dell
Dell
Dell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...
3008WFP 30 inches (76.2 cm), released in January 2008 was the first monitor to support DisplayPort. The Dell 2408WFP 24 inches (61 cm) followed in April 2008. Many other Dell monitors also offer the DisplayPort interface, including four of their 'Professional' series and five of their 'UltraSharp' series monitors.
Hewlett Packard
The HP Elite L2201 21.5 inches (54.6 cm) released in June 2011 is the first monitor from Hewlett Packard to ship with a DisplayPort as the primary (and only) means of connectivity. HP EliteBook laptops provide both a VGA and a DisplayPort connector.Adopters and supporters
The following companies have participated in preparing the drafts of DisplayPort, eDP, iDP, or DDM standards:- AgilentAgilent TechnologiesAgilent Technologies , or Agilent, is a company that designs and manufactures electronic and bio-analytical measurement instruments and equipment for measurement and evaluation...
- Altera
- AMD/ATIAtiAs a word, Ati may refer to:* Ati, a town in Chad* Ati, a Negrito ethnic group in the Philippines* Ati-Atihan Festival, an annual celebration held in the Philippines* Ati, a queen of the fabled Land of Punt in Africa...
- AnalogixAnalogixAnalogix Semiconductor develops analog and mixed-signal devices for digital media and communications interconnect applications. Analogix claims to be the first company to market HDMI receivers and transmitters with 25 m reach over low cost cable, Display Port transmitters and receivers, 6 Gbit/s...
- Apple
- Astrodesign
- Broadcom CorporationBroadcomBroadcom Corporation is a fabless semiconductor company in the wireless and broadband communication business. The company is headquartered in Irvine, California, USA. Broadcom was founded by a professor-student pair Henry Samueli and Henry T. Nicholas III from the University of California, Los...
- Chi Mei Optoelectronics
- ChrontelChrontelChrontel, headquartered in San Jose, California, is a privately-held company with over 130 employees worldwide. Incorporated in 1986, the company develops and markets mixed-signal integrated circuits for the PC, display and consumer markets....
- DellDellDell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...
- Display Labs
- Foxconn ElectronicsFoxconnThe Foxconn Technology Group is a multinational business group anchored by the Hon Hai Precision Industry Co., Ltd. , a Taiwan-registered corporation headquartered in Tucheng, Taiwan...
- Genesis MicrochipGenesis MicrochipGenesis Microchip Inc. is a leading edge world wide supplier of integrated circuits for video processors in flat panel LCD TVs and Monitors. Founded in 1987 by Paul Russo in Markham, Ontario, Canada and it became a public company in 1998 and now employs over 563 people worldwide...
- Hewlett-PackardHewlett-PackardHewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...
- HosidenHosidenHosiden manufacturers electronic components and devices. They have a strong presence in the Telecommunication and Automotive industry next to the consumer markets...
- Hirose Electric GroupHirose Electric GroupHirose Electric Group is a Japanese company specializing in the manufacturing of electric connectors. The company was founded in 1937 and started selling internationally in 1968. The annual revenue is 104 billion yen and the gross profit is 38 billion yen , the number of employees 3975, as of 2006....
- IntelIntel CorporationIntel Corporation is an American multinational semiconductor chip maker corporation headquartered in Santa Clara, California, United States and the world's largest semiconductor chip maker, based on revenue. It is the inventor of the x86 series of microprocessors, the processors found in most...
- I-PEX
- Integrated Device TechnologyIntegrated Device TechnologyIntegrated Device Technology, Inc. is a publicly traded corporation headquartered in San Jose, California, that designs, manufactures, and markets low-power, high-performance mixed-signal semiconductor solutions for the advanced communications, computing, and consumer industries. The company...
- JAE ElectronicsJapan Aviation Electronicsis a Japanese corporation specializing in the manufacture and sales of electrical connectors such as high speed LVDS, HDMI, PCI express, high density, micro coaxial, and Board to board connectors. It also makes systems equipment and aerospace products . With headquarters in Shibuya, Tokyo, JAE is...
- Kawasaki Microelectronics (K-Micro)Kawasaki Heavy Industriesis an international corporation based in Japan. It has headquarters in both Chūō-ku, Kobe and Minato, Tokyo.The company is named after its founder Shōzō Kawasaki and has no connection with the city of Kawasaki, Kanagawa....
- Lenovo
- LG Display
- LuxteraLuxteraLuxtera Inc., founded in 2001, is based in Carlsbad, California. Luxtera is a fabless semiconductor company that is using silicon photonics technology to build complex electro-optical systems in a production silicon CMOS process...
- MolexMolexMolex is a leading global supplier of electronic interconnectors. Molex sells over 100,000 products, including everything from electrical and fiber optic interconnect solutions to switches and application tooling....
- NECNEC, a Japanese multinational IT company, has its headquarters in Minato, Tokyo, Japan. NEC, part of the Sumitomo Group, provides information technology and network solutions to business enterprises, communications services providers and government....
- NVIDIANVIDIANvidia is an American global technology company based in Santa Clara, California. Nvidia is best known for its graphics processors . Nvidia and chief rival AMD Graphics Techonologies have dominated the high performance GPU market, pushing other manufacturers to smaller, niche roles...
- NXP Semiconductors
- Parade Technologies
- Realtek SemiconductorRealtekRealtek Semiconductor Corp. , a fabless IC design house situated in the Hsinchu Science Park, Hsinchu, Taiwan, was founded in October 1987, and subsequently approved as a listed company on the Taiwan Stock Exchange in 1998...
- SamsungSamsung ElectronicsSamsung Electronics is a South Korean multinational electronics and information technology company headquartered in Samsung Town, Seoul...
- SMK
- STMicroelectronicsSTMicroelectronicsSTMicroelectronics is an Italian-French electronics and semiconductor manufacturer headquartered in Geneva, Switzerland.While STMicroelectronics corporate headquarters and the headquarters for EMEA region are based in Geneva, the holding company, STMicroelectronics N.V. is registered in Amsterdam,...
- SyntheSys Research Inc.
- TektronixTektronixTektronix, Inc. is an American company best known for its test and measurement equipment such as oscilloscopes, logic analyzers, and video and mobile test protocol equipment. In November 2007, Tektronix became a subsidiary of Danaher Corporation....
- Texas InstrumentsTexas InstrumentsTexas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...
- TLi
- Tyco ElectronicsTyco ElectronicsTE Connectivity, Ltd., previously known as Tyco Electronics, Ltd., and formerly a segment of Tyco International, is a leading global provider of engineered electronic components, network solutions, undersea telecommunication systems, and specialty products for customers in more than 150 countries...
- ViewSonicViewSonicViewSonic Corporation is a manufacturer and provider of visual technology, specifically CRT monitors, liquid crystal displays, projectors, plasma displays, HDTV technology, and mobile products, including Mini and All-in-One PCs and wireless monitors....
- VTM
The following companies have additionally announced their intention to implement or support DisplayPort, eDP or iDP:
- Acer
- ASRockASRockASRock Inc. is a manufacturer of motherboards, netbooks, and HTPCs, based in Taiwan and chaired by Ted Hsuu. It was established on May 10th, 2002 and invested by and subordinated to Asus.- History :...
- BiostarBiostarBiostar or Biostar Microtech International Corp, is a motherboard manufacturer based in Taiwan, designing and manufacturing of computer hardware products such as motherboards, video cards, barebone computers and industrial PCs, to meet the demands of market development by providing more integrated...
- Chroma
- Circuit Assembly
- DataPro
- EizoEizo, or EIZO, is a manufacturer of high-end computer displays. A Japanese corporation, it was founded in March 1968 but did not adopt its current name until 1999 when Nanao Corporation and Eizo merged...
- FujitsuFujitsuis a Japanese multinational information technology equipment and services company headquartered in Tokyo, Japan. It is the world's third-largest IT services provider measured by revenues....
- Gigabyte TechnologyGigabyte TechnologyGigabyte Technology Co., Ltd. is a Taiwan-based manufacturer of computer hardware products best known for its motherboards. The company is publicly held and traded on the Taiwan Stock Exchange .-Company:...
- Hall Research Technologies
- ITE Tech.
- Matrox Graphics
- Micro-Star InternationalMicro-Star InternationalMicro-Star International Co., Ltd is a Taiwan-based electronics company and one of the world's largest motherboard and video card manufacturers.-Overview:MSI is one of the top three motherboard and video card manufacturers worldwide...
- MStar Semiconductor
- Palit Microsystems Ltd.
- Pioneer CorporationPioneer Corporationis a multinational corporation that specializes in digital entertainment products, based in Kawasaki, Kanagawa, Japan. The company was founded in 1938 in Tokyo as a radio and speaker repair shop...
- S3 GraphicsS3 GraphicsS3 Graphics, Ltd is an American company specializing in graphics chipsets. Although they do not have the large market share that they once had, they still produce graphics accelerators for home computers under the "S3 Chrome" brand name.-History:...
- ToshibaToshibais a multinational electronics and electrical equipment corporation headquartered in Tokyo, Japan. It is a diversified manufacturer and marketer of electrical products, spanning information & communications equipment and systems, Internet-based solutions and services, electronic components and...
- PhilipsPhilipsKoninklijke Philips Electronics N.V. , more commonly known as Philips, is a multinational Dutch electronics company....
- Quantum Data
- Sparkle Computer
- Unigraf
Market share
Figures from IDCInternational Data Corporation
International Data Corporation is a market research and analysis firm specializing in information technology, telecommunications and consumer technology. IDC is a subsidiary of International Data Group...
show that DisplayPort was on 5.1 percent of commercial desktops and 2.1 percent on commercial notebooks in 2009. However, they predict that the figure for commercial desktops will grow to 89.5 percent, and for commercial notebooks to 95 percent by 2014. The main factor behind this is the phase out of VGA, and that both Intel and AMD will also stop supporting low-voltage differential signaling (LVDS), by 2013.
See also
- DiiVA
- HDBaseTHDBaseTHDBaseT, supported by The HDBaseT Alliance, is a consumer electronic connectivity technology for long-distance transmission of uncompressed high-definition video, audio, 100BaseT Ethernet, high-power over cable and various controls, via a 100m Cat5e/Cat6 cable with 8P8C modular connectors of the...
- HDMIHDMIHDMI is a compact audio/video interface for transmitting uncompressed digital data. It is a digital alternative to consumer analog standards, such as radio frequency coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA...
- Mini DisplayPortMini DisplayPortThe Mini DisplayPort is a miniaturized version of the DisplayPort digital audio-visual interface. Apple, Inc. announced the development in the fourth quarter of 2008, and now applies it in the LED Cinema Display and in all new Macintosh computers: MacBook, MacBook Pro, MacBook Air, iMac, Mac mini,...
- List of video connectors
- Thunderbolt