Cylindrical lens grating, grating parallax barrier type stereoscopic display device and parallax barrier

Abstract

The invention discloses a cylindrical lens grating which comprises a plurality of parallel cylindrical lenses. Each cylindrical lens comprises an upper surface and two opposite side faces, wherein the upper surfaces are smooth curved surfaces, and the side faces are accidented curved surfaces. The vertical distance between a vertex on the leftmost side and a vertex on the rightmost side of an irregular curve formed by a projection of any side face out of every two opposite side faces on a pixel is plus-minus 5-20%d, and d is the diameter of each cylindrical lens. Simultaneously, the lenses are arranged on a substrate in parallel in a vertical bar or slanted bar shape. As the side faces of the lenses are in irregular curved surface structures, light passing through the upper surfaces and the side faces are not deflected and do not deform; an image of a black matrix in eyes of a user in the directions is not amplified; only a pattern with the width basically equal to the actual width of the black matrix is formed; and as the actual width of the black matrix is extremely small and the actual effect of the pattern can be ignored, a moire pattern can be suppressed effectively.

Description

technical field [0001] The invention relates to a cylindrical lens grating, a grating parallax barrier type stereoscopic display device and a parallax barrier, in particular to a grating of a naked-eye stereoscopic display device without moiré interference fringes. Background technique [0002] Nowadays, the stereoscopic display device is more and more familiar to the public, which mainly enables the observer to form a stereoscopic vision through certain processing. The so-called stereo vision is the feeling of observing things with both eyes to distinguish the distance and shape of objects. By receiving different images to the left and right eyes respectively, the brain can perceive the layering and depth of the object after overlapping, so as to experience the three-dimensional feeling of the object. Therefore, the stereoscopic display device needs to separate the left-eye and right-eye signals and receive them independently by the left eye and the right eye respectively, ...

AI Technical Summary

Problems solved by technology

And with different viewing distances and viewing angles, the number and shape of moiré patterns will also change, and the moiré patterns will interfere with the observation of stereoscopic images

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