Method for removing moiré

Abstract

The invention provides a method for eliminating Moore interference fringes, belongs to the optical field, and aims to solve the problem that the watching comfort level is influenced due to Moore fringes generated by a column lens device adopted by a naked eye 3D display. The method comprises the steps of: a triangular refraction area is embedded in each section of an optical grating, the extension direction of the triangular refraction area is identical with the extension direction of a single optical grating of a column lens, and the triangular refraction area are corresponding to black matrixes on a display screen in position; each triangular refraction area is of a triple prism structure whose cross section is in an isosceles triangle shape, the bottom surface of the triple prism is arranged on the bottom surface, facing the display, of the column lens device, and the width of the bottom edge of the isosceles triangle is larger than or equal to the width of the black matrix. The top angle of the isosceles triangle is shown in the specification, wherein n2 is smaller than n1. Light transmitted by the black matrixes is irradiated to the triangular refraction area and then total reflection happens, the beam of light is refracted to left and right sides and jumps out of views of people, and the comfort level of human eyes is not influenced.

Description

technical field

[0001] The present invention belongs to the field of optics. Background technique

[0002] Glasses-free 3D means that you can enjoy realistic images that are "ready to come out" without wearing any auxiliary equipment such as special glasses, making people feel like "being in a wonderland".

[0003] In 2014, the sales volume of smart phones in my country was about 400 million units, and the market size exceeded 100 billion per year. Although the sales volume is increasing, the sales price is falling. The reason is that the current smart terminal products have no new selling points to attract In people's eyes, the popularity of 3D is considered by many manufacturers as a new growth point, but how to get rid of the shackles of glasses and make 3D applicable anytime and anywhere has become a must for many companies. Glasses-free 3D technology has rapidly entered the stage of industrialization and market application after years of accumulation. With the increasi...

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