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Color coordinate offset compensation method

A technology of offset compensation and color coordinates, applied to instruments, static indicators, etc., can solve problems such as W sub-pixel color shift, and achieve the effect of speeding up the compensation time

Active Publication Date: 2019-04-16
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at the same time, the arrangement method of RGBW also has corresponding defects: the W sub-pixel itself has color shift

Method used

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Embodiment Construction

[0053] The present invention proposes a color shift compensation method. When the color coordinates of the W sub-pixel in the RGBW panel are different from the target value, at least one of the R, G, and B sub-pixels is used to perform color compensation on the W sub-pixel to achieve the expected display. White screen; this method can first obtain the preliminary compensated R, G, and B data signals based on the calculation method, and then perform fine-tuning to obtain the data compensation look-up table (LUT), which can speed up the compensation time and realize the compensation of the color coordinates to achieve the ideal display color .

[0054] see figure 2 , which is a flow chart of the method for color coordinate offset compensation of the present invention, mainly including:

[0055] Step S1, the input R i G i B i Data signal conversion to R o G o B o W o data signal;

[0056] Step S2, calculating and obtaining the pre-compensated RGBW data signal;

[0057]...

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Abstract

The invention relates to a color coordinate offset compensation method. The color coordinate offset compensation method comprises the following steps: step S1, converting an input RiGiBi data signal into a RoGoBoWo data signal; step S2, computing to acquire an initially compensated RGBW data signal; step S3, providing the initially compensated RGBW data signal for a panel to display; and step S4,detecting the color coordinate change of the panel in real time, and adjusting a display picture, and saving the display data finally satisfying the target color coordinate in a lookup table. Throughthe color coordinate offset compensation method disclosed by the invention, the compensation time of the color coordinate can be accelerated, the compensation of the color coordinate is realized, andthe ideal display color is realized.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for compensation of color coordinate offset. Background technique [0002] Liquid crystal display (LCD) has the characteristics of good brightness, high contrast, strong layering, bright colors, and thinness. It has been widely used in display products such as mobile phones, tablet computers, notebook computers, and TVs. Most of the liquid crystal displays are backlight liquid crystal displays, which are composed of a liquid crystal display panel and a backlight module. [0003] Organic light-emitting diode (OLED) display panel has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, and can realize flexible display and large-area full-color display And many other advantages, it is recognized by the industry as the display panel with the most dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/3208G09G3/36
CPCG09G3/2074G09G3/3208G09G3/3607G09G2320/0666
Inventor 田凡梁鹏飞
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD