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Dynamic electronic grating

An electronic grating and dynamic technology, applied in the direction of optics, electrical components, optical components, etc., can solve the problem of reducing clarity, achieve the effect of improving clarity and viewing angle, and solving dizziness

Inactive Publication Date: 2016-08-24
BEIJING LANSHEN KECHUANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A notable feature of the LCD display is that before the new data is scanned and written, the pixels always display the original data, so the switching between images is completed by scanning gradually. If the supporting dynamic electronic grating adopts the instantaneous switching method , which reduces sharpness due to pixel ghosting

Method used

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Examples

Experimental program
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Embodiment example 1

[0032] Implementation case 1, a dynamic electronic grating composed of a black-and-white binary matrix liquid crystal screen for line scanning.

[0033] Such as figure 2 As shown, the dynamic electronic grating (1) is composed of a lenticular lens grating (16) and a switchable slit grating. The switchable slit grating is realized by a matrix liquid crystal screen, and consists of a polarizer (17), an IPO glass (18), a liquid crystal Layer (19), IPO glass (18), polarizer (17), etc. form a matrix type liquid crystal screen, wherein the light-shielding strip (20) is formed by black pixels (6), and the light-transmitting slit (21) is formed by white pixels (7 )constitute. The pixel structure of the matrix LCD screen is as follows: image 3 As shown, it is a parallelogram structure, black and white binary display, pixel columns and pixel columns are separated by black lines (5), there is no interval between pixel rows and pixel rows, the pixel width is equal to the lenticular gr...

Embodiment example 2

[0035] The second implementation case is a dynamic electronic grating composed of an LCD screen without a filter layer.

[0036] To display 20-viewpoint naked-eye stereoscopic images with a basic refresh rate of 4 times frequency of 60Hz, it is necessary to prepare a 55-inch 4K LCD TV with a resolution of 3840*2160 and a refresh rate of 240Hz to display stereoscopic images. The pixel pitch of the LCD TV is 0.3171mm. Prepare a 55-inch LCD panel with a resolution of 3840*2160 and a refresh rate of 240Hz as a switchable slit grating. The filter layer in the LCD panel has been removed during processing, and the pixel pitch is 0.3165mm, which is higher than that of LCD TVs. Slightly smaller, with an effective area of ​​1215*683mm, the grating lines composed of liquid crystal patterns are inclined at an angle of 18.43 degrees to the vertical direction, and combined with a lenticular grating (16) with the same inclination angle and a grid pitch of 0.5mm to form a dynamic electronic gr...

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PUM

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Abstract

The invention discloses a dynamic electronic grating. The dynamic electronic grating together with a liquid crystal module and a backlight module can form a naked-eye stereo display of high definition and wide visual angle. The dynamic electronic grating is composed of a lenticular grating and a switchable slit grating, a frequency-multiplication refresh technology is used, and when N states of the slit grating are switched successively, N adjacent lenticular lenses are switched on and off sequentially, and equivalently, N times of pixels are increased in the horizontal direction. The definition and visual angle of naked-eye stereo display are greatly improved, and a high-definition image can be displayed directly needless of 2D / 3D conversion.

Description

Technical field: [0001] The invention relates to a dynamic electronic grating constituting a high-resolution autostereoscopic display, which can be used in stereoscopic televisions, 3D game machines, 3D advertisements and the like. Background technique: [0002] In recent years, autostereoscopic technology without using glasses has been actively researched. Its representative is the grating stereoscopic display, which is formed by adding a grating to a flat matrix display. It is divided into a grating front type and a grating rear type. Located between the backlight source and the matrix display panel or on the side of the matrix display panel facing the audience, the grating can be a lenticular lens grating or a slit grating. Lenticular autostereoscopic display is further divided into binocular parallax type and multi-viewpoint stereoscopic display. Multi-viewpoint stereoscopic display has good viewing freedom and comfort, and is suitable for multiple people to watch at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/22G02F1/1335G02F1/29H04N13/30
CPCH04N13/30
Inventor 薄淑英
Owner BEIJING LANSHEN KECHUANG TECH