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Multi-view pixel directional backlight module and naked-eye 3D display device

A backlight module, pointing technology, applied in the field of naked-eye 3D display devices, can solve problems such as low efficiency, difficulty, and mismatching display methods.

Active Publication Date: 2015-03-25
SUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to achieve true color display, a hexagonal light guide plate is used in this article to realize the directional export of red, green, and blue light. However, this hexagonal light guide plate does not match the existing flat panel display methods, and it is especially difficult to be used for image display. In the rectangular display of the smartphone,
At the same time, using electron beam exposure to prepare nano-diffraction gratings has low efficiency, high cost, and it is difficult to prepare large-scale

Method used

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Embodiment Construction

[0037] As mentioned in the background technology, among the various means of realizing naked-eye 3D, the pixel-pointing backlight module has been favored by those skilled in the art because it can achieve a wider viewing angle, and it will become the most likely large-scale application in the future. One of the techniques in 3D.

[0038] Please see first figure 1 and figure 2 , figure 1 and figure 2 It is a structural diagram of a diffraction grating at the nanometer level under the XY plane and the XZ plane. According to the grating equation, the period and orientation angle of the nano-diffraction grating pixel 101 satisfy the following relationship:

[0039]

[0040]

[0041] Among them, the light travels along the positive direction of the x-axis, θ 1 and The diffraction angle of the diffracted light 201 (the angle between the diffracted light and the positive direction of the z-axis) and the azimuth angle of the diffracted light 201 (the angle between the d...

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Abstract

The invention discloses a multi-view pixel directional backlight module and a naked-eye 3D display device. The multi-view pixel directional backlight module comprises at least two rectangular light guide plates, wherein all the rectangular light guide plates are tightly stacked together, multiple pixels which are formed through nanometer diffraction gratings and point to different directions are formed on the light emergence surface of each rectangular light guide plate, at least one side edge of each rectangular light guide plate is provided with a light source set, and emergent light is formed by light emitted by the light source sets on pixels of multiple pixel arrays on the light emergency surfaces of the light guide plates after the light emitted by the light source sets enters the corresponding light guide plates. According to the multi-view pixel directional backlight module and the naked-eye 3D display device, due to the fact that the multiple light guide plates are stacked, the problem that mutual interference of three light sources can not be avoided on one light guide plate is solved, the pixel directional rectangular light guide plates are obtained, a feasible scheme is provided for industrial application of the multi-view pixel directional light guide plates in the naked-eye 3D display technique, and the problems which can not be solved in the prior art are solved.

Description

technical field [0001] The invention belongs to the field of flat-panel naked-eye 3D display, and in particular relates to a multi-view pixel pointing type backlight module and a naked-eye 3D display device based on the backlight module. Background technique [0002] With the improvement of people's living standards, flat 2D display has become more and more difficult to meet people's needs, and people began to pursue 3D display with a sense of depth, so that they can feel the reality of the existence of objects more clearly. Since Wheatstone first proposed the use of stereoscopic mirrors to realize 3D display in 1838, after more than a century of development, the research on 3D display has been in full swing, and various ways to realize 3D display have been proposed in turn. [0003] There is a certain distance between the eyes of a person. For the same object, the eyes will see two slightly different images, and the two images will be fused in the brain to produce depth per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B27/22G02B30/33H04N13/349
CPCG02B6/0035G02F1/133606H04N13/349G02F1/133607G02B30/33H04N13/32H04N13/324G02B6/0036G02B6/0068G02B6/0076G02B5/1809G02B6/0025G02B6/003
Inventor 万文强陈林森楼益民浦东林朱铭朱鹏飞申溯叶燕
Owner SUZHOU UNIV
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