Holographic display is a display technology that has the ability to provide all four eye mechanism: binocular disparity

Binocular disparity

Binocular disparity refers to the difference in image location of an object seen by the left and right eyes, resulting from the eyes' horizontal separation. The brain uses binocular disparity to extract depth information from the two-dimensional retinal images in stereopsis...

, motion parallax, accommodation

Accommodation (eye)

Accommodation is the process by which the vertebrate eye changes optical power to maintain a clear image on an object as its distance changes....

 and convergence

Convergence (eye)

In ophthalmology, convergence is the simultaneous inward movement of both eyes toward each other, usually in an effort to maintain single binocular vision when viewing an object. This action is mediated by the medial rectus muscle, which is innervated by Cranial nerve III...

. The 3D

Three-dimensional space

Three-dimensional space is a geometric 3-parameters model of the physical universe in which we live. These three dimensions are commonly called length, width, and depth , although any three directions can be chosen, provided that they do not lie in the same plane.In physics and mathematics, a...

 objects can be viewed without wearing any special glasses and no visual fatigue

Asthenopia

Asthenopia or eye strain is an ophthalmological condition that manifests itself through nonspecific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache and occasional double vision...

 will be caused to human eyes.

Electro-holographic display

Electro-holographic display is a type of holographic display that uses electroholography for recording and reconstructing a 3D objects. This display has advantages over other 3D displays; for example it can reconstruct 3D images with full parallax.

See also

• Holography
  Holography
  Holography is a technique that allows the light scattered from an object to be recorded and later reconstructed so that when an imaging system is placed in the reconstructed beam, an image of the object will be seen even when the object is no longer present...
  
  
• Holographic screen
  Holographic screen
  A holographic screen is a display technology that uses coated glass media for the projection surface of a video projector. "Holographic" refers to the coating that bundles light using formed microlenses. The lens design and attributes match the holographic area. The lenses may appear similar to the...
  
  
• Computer-generated holography
• Volumetric display
  Volumetric display
  A volumetric display device is a graphical display device that forms a visual representation of an object in three physical dimensions, as opposed to the planar image of traditional screens that simulate depth through a number of different visual effects...