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

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...

AI Technical Summary

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

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