Directional display apparatus

A technology of directional display and directional distribution, which is applied in the directions of optics, instruments, electrical components, etc., can solve the problems of display brightness reduction and achieve the effect of minimum cost

Active Publication Date: 2009-10-14
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Outside the viewing window, the viewer will see inter-pixel gaps and the display will be reduced in brightness

Method used

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  • Directional display apparatus
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Embodiment Construction

[0119] Some different embodiments employ common elements, for the sake of simplicity, these common elements will be given common reference numerals and their description will not be repeated. In addition, descriptions of elements in each embodiment are equally applied to the same elements in other embodiments, and to elements having corresponding effects mutatis mutandis. Additionally, the figures illustrating embodiments of the display show only a portion of the display for clarity. In fact, this structure can be repeated over the entire area of ​​the display.

[0120] In this specification, the optical axis direction (director direction, or extraordinary axial direction) of a birefringent material will be referred to as a birefringent optical axis. It should not be confused with the optical axis of a lens, which is defined in the usual manner in geometric optics.

[0121] A cylindrical lens describes a lens in which an edge (which has a radius of curvature and possibly oth...

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Abstract

A birefringent lens structure comprising an array of birefringent lenses capable of directing light of a given polarization into a directional distribution, the birefringent lens comprising a solid birefringent material and an isotropic material having an interface of a refractive structure. A switchable liquid crystal layer capable of rotating the polarization of light passing therethrough is disposed adjacent to the first birefringent material. The interface between the birefringent material and the liquid crystal layer has an alignment microstructure that provides alignment of the birefringent material and the liquid crystal layer. A pair of electrodes for applying an electric field to switch the liquid crystal is provided with a lens array and a switchable liquid crystal layer therebetween, and a conductive material is incorporated into the lens array to reduce a voltage drop across the lens array. In order to reduce reflection, the interface between the birefringent material and the isotropic material has an interface with an alignment microstructure that provides alignment to the birefringent material, and the refractive index of the isotropic material is substantially equal to that of the birefringent material. refractive index.

Description

technical field [0001] The present invention relates to directional display devices and their manufacture. Background technique [0002] Such a device may be a switchable two-dimensional (2D) / three-dimensional (3D) autostereoscopic display device; a switchable high brightness reflective display system; or a multi-user display system. Such systems can be used in computer monitors, telecommunications handsets, digital cameras, laptop and desktop computers, gaming devices, automotive and other mobile display applications. [0003] Normal human vision is stereoscopic, meaning that each eye sees a slightly different image of the world. The brain combines the two images (called a stereo pair) to give the perception of depth. A stereoscopic three-dimensional display reproduces to each eye separate, generally planar images (corresponding to what one would see when viewing a real-world scene). The brain merges this stereo pair again to give the appearance of depth in the image. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/22H04N13/00G02F1/1333G02B30/25G02B30/28G02F1/29
CPCG02B27/26G02B27/225G02F1/133371G02B27/2214G02F1/29H04N13/0404G02F2203/28H04N13/305G02B30/25G02B30/28G02F1/133526G02F1/13363G02B30/27
Inventor 格雷厄姆·约翰·伍德盖特乔纳森·哈罗德
Owner AU OPTRONICS CORP
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