Color filter for liquid crystal display, preparation method thereof and liquid crystal display

Abstract

The invention relates to the field of a liquid crystal display and discloses a color filter for the liquid crystal display, a preparation method thereof and the liquid crystal display. The color filter comprises a substrate (50) and a black matrix (51), wherein the substrate (50) is equipped with a first sub-pixel area, a second sub-pixel area and a third sub-pixel area; the black matrix (51) is located on the substrate; the black matrix comprises a first opening (510), a second opening (511) and a third opening (512) which are corresponding to the first sub-pixel area, the second sub-pixel area and the third sub-pixel area; the color filter comprises a first colored sub-pixel layer (520), a second colored sub-pixel layer (521), a third colored sub-pixel layer (522) and a white sub-pixel layer (523); the first colored sub-pixel layer (520), the second colored sub-pixel layer (521) and the third colored sub-pixel layer (522) are corresponding to the first opening, the second opening and the third opening; the white sub-pixel layer (523) is located in at least one of the three colored sub-pixel layers. The color filter has excellent color mixing effect and higher light penetration rate. The color filter can increase the luminance and resolution ratio of the liquid crystal display.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to a color filter for a liquid crystal display, a preparation method thereof, and a liquid crystal display. Background technique [0002] Liquid Crystal Display (LCD) is a flat and ultra-thin display device, which consists of a certain number of color or black and white pixels, placed in front of a light source or a reflective surface. Liquid crystal displays consume very little power, making them favored by engineers for electronic devices that run on batteries. Its main principle is to stimulate liquid crystal molecules with current to generate points, lines, and surfaces to form a picture with the back lamp tube. [0003] Color filter (Color Filter) is an optical filter that expresses color. It can accurately select the small range of light waves to be passed, and reflect other unwanted wave bands. CF is a key component of LCD colorization. LCD is a non-active light-emit...

AI Technical Summary

Problems solved by technology

However, because the W sub-pixel is far away from the R, G, and B sub-pixels, the color mixing effect is not good, and the resolution is low

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