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Four-field-sequential-color-LCD-based color display method

A liquid crystal display and display method technology, applied to static indicators, instruments, etc., can solve the problems of irregular colored lines on the outline of objects, affecting the display effect of time-sequence mixed color displays, etc.

Active Publication Date: 2017-05-10
CHENGDU JIUTIAN HUAXIN TECH CO LTD
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  • Abstract
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Problems solved by technology

This phenomenon will cause irregular colored lines to appear on the outline of the object, which seriously affects the display effect of the sequential color mixing display

Method used

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Embodiment Construction

[0056] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0057] A color display method based on a four-field sequential liquid crystal display, by performing Local Primary Desaturation (Local Primary Desaturation) processing on the color range contained in each local backlight area, on the premise of ensuring the complete reproduction of the original image color, reasonably Search for the 4-field primary colors with the smallest color difference for color mixing, which effectively suppresses the color breakup of traditional...

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Abstract

The invention discloses a four-field-sequential-color-LCD-based color display method. Local primary desaturation processing is carried out on a color range included by each local backlight region; on the premise that the original image color is reproduced completely, four-field primary colors with minimum chromatic aberration are searched reasonably to carry out color mixing, so that a color breakup phenomenon of the traditional red-green-blue primary color sequential LCD can be suppressed effectively and thus the image quality of the sequential LCD can be improved. Meanwhile, because of full utilization of divided region backlight of the LCD during local primary desaturation processing, the primary color range is reduced and local dimming is realized, so that power consumption of the LCD can be reduced.

Description

technical field [0001] The invention belongs to the field of display color display, in particular to a color display method based on a four-field (240Hz refresh rate) sequential liquid crystal display (Field-Sequential Color LCD). Background technique [0002] Liquid crystal display (LCD) technology has developed rapidly in recent years, and people's requirements for liquid crystal displays are also getting higher and higher. The demand for low power consumption and high resolution liquid crystal displays arises at the historic moment. There are two main methods of color mixing in liquid crystal displays: spatial color mixing and time sequence color mixing. Spatial color mixing uses the three primary color units of red, green and blue as a pixel to perform spatial color mixing; while sequential color mixing uses the persistence of human vision to increase the refresh rate of LEDs so that the LEDs display red and green within one frame. Blue three-field picture, which can a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/34
CPCG09G3/3413G09G3/3426G09G3/3607
Inventor 张宇宁沈忠文王坚翁一士李晓华
Owner CHENGDU JIUTIAN HUAXIN TECH CO LTD
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