Color display device

Abstract

A color display includes: a plurality of first pixels and a plurality of second pixels. Each first pixel includes three color pixels, each color pixel has at least two sub-pixels, and the plurality of sub-pixels form the first pixel according to a first arrangement mode. The plurality of second pixels and the plurality of first pixels are alternately arranged along at least one coordinate axis direction, each second pixel includes three color pixels, each color pixel has at least two sub-pixels, and the plurality of sub-pixels are based on the second An arrangement pattern forms the second pixel, the first arrangement pattern being different from the second arrangement pattern. The plurality of sub-pixels are configured and driven in cooperation with the bright-state display signal and the dark-state display signal, so that the plurality of sub-pixels driven by the bright-state display signal and the dark-state display signal can be regularly and evenly distributed, and will not be concentrated in certain areas, It can solve the phenomenon of uneven brightness and darkness on the screen, and has better color deviation and viewing angle effects driven by bright state display signals and dark state display signals.

Description

technical field [0001] The invention relates to a color display. Background technique [0002] Generally speaking, since the light transmittance of a front-view liquid crystal display is not the same as that of a side-view liquid crystal display, this is because the incident light of different angles in the liquid crystal layer produces different phase difference values ​​(Retardation), so when When the viewing angle is different, the deflection coefficient of the light is different, resulting in a different transmittance. Therefore, different viewing angles will cause different brightness of the displayed light. And when different color lights (such as red light, green light and blue light) are mixed with different brightness ratios when viewed from the front and viewed from the side, there will be a color shift phenomenon in which the displayed colors are different when viewed from the front and viewed from the side. How to reduce the color deviation when the liquid crys...

AI Technical Summary

Problems solved by technology

[0004] 1. Kalluri (US 5,711,474) proposes to divide a pixel into multiple areas with different characteristics to meet the display under different viewing angles. The disadvantage is that it cannot be adjusted once it is manufactured, and different areas correspond to specific different displays. Angle, the display effect of the original picture will be reduced

[0005] 2. Susumu (US 5,847,688) proposes to use the original signal according to the characteristic curve (Gamma Curve) of two different viewing angles, and input it through different drivers (driver) in every two picture times. The disadvantage is that the picture is in two The change of the picture time will cause the picture to flicker, and only half of the pixels of the synthesized picture are displayed for the picture at a specific angle, which cannot actually solve most viewing situations, and will cause a decrease in picture resolution

[0006] 3. Paul et al. (US2002 / 0149598) proposed to use more than 2×2 sub-pixels (subpixel) to display the screen, use the calculated value to adjust the original display screen, and use different ratios of bright and dark pixel (pixel) ratios to complete Display, the disadvantage is that it uses multiple pixels (pixels) for display operations, and considers each pixel (pixel) as a unit, so it is necessary to solve the problem of color deviation when the resolution is greater than 170dpi

Therefore, it may cause uneven brightness and darkness on the screen, which may cause visually undesirable effects.

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