Method and device for color sequence compensation modulation

Abstract

The invention relates to a method and a device for color sequence compensation modulation, which are used for color sequence liquid crystal display color monitors. In the method, backlight of multicolor backlight sources is modulated to allow the backlight with each different color to have non-luminous time during switching and allow the non-luminous time to overlap with closing time delay caused by the optical response time delay of liquid crystal display to a liquid crystal display optical gate channel, so that the backlight with different colors is mixed within the time of the closing time delay. Thus display chromatic aberration caused by color mixing can be avoided, and derived colors of the original design can be generated correctly.

Description

technical field [0001] The invention relates to a display method and device of a color sequence liquid crystal color display, in particular to a color sequence compensation modulation method and device for avoiding display color difference caused by color mixing to produce correct original design derived colors. Background technique [0002] The color sequential liquid crystal color display mainly passes through the liquid crystal light gate channel through the sequentially switched multi-color backlight, and controls the closing and opening of the liquid crystal light gate channel to generate a sequential original pure color image field, which is passed through the visual persistence of the human eye. and color mixing produces a colorful display, see figure 1 As shown, the control signal sequence 1 is used to drive the closing and opening of the liquid crystal light gate channel, and the liquid crystal light gate channel is limited by the response time of liquid crystal mol...

AI Technical Summary

Problems solved by technology

[0002] The color sequential liquid crystal color display mainly passes through the liquid crystal light gate channel through the sequentially switched multi-color backlight, and controls the closing and opening of the liquid crystal light gate channel to generate a sequential original pure color image field, which is passed through the visual persistence of the human eye. and color mixing produces a colorful display, see figure 1 As shown, the control signal sequence 1 is used to drive the closing and opening of the liquid crystal light gate channel, and the liquid crystal light gate channel is limited by the response time of liquid crystal molecules, and the penetration curve 2 of the liquid crystal light gate channel cannot respond immediately, and there will be Two types of optical response delays: opening delay 3 and closing delay 4

[0003] see again figure 2 As shown, the liquid crystal light gate channel is used in conjunction with the backlight 5 of the multi-color backlight that is sequentially switched (the icon is the sequential switching of red light 6 (R), green light 7 (G), and blue light 8 (B). When red light 6, green light 7, and blue light 8 are pure colors (marked in the diagram: r, g, b), the penetration curve 2 of the liquid crystal light gate channel will cover the light of the subsequent color due to the closing time delay 4 , that is, when red light 6 is displayed, part of green light 7 will also penetrate, when green light 7 is displayed, part of blue light 8 will penetrate, when blue light 8 is displayed, part of red light 6 will penetrate, thus causing the display color deviation

And when it is used to display the mixing of two kinds of light (marked in the diagram: c, m, y), it will also allow the light of the subsequent color to penetrate due to the closing delay 4, so that the displayed color produced by it will be There will be a color cast of derived colors

Images