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A display image correction method

A display and image technology, used in static indicators, instruments, etc., can solve the problems of uneven display brightness, brightness, contrast, saturation, short circuit or open circuit, etc., to improve display unevenness and improve color uniformity. , the effect of improving the display effect

Active Publication Date: 2021-05-07
安徽立大加智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a long time of use, some pixels or sub-pixels in the LCD may have changes in brightness, contrast, saturation and other parameters due to various reasons such as threshold voltage drift, water ingress, high temperature, aging, etc., and may even have a short circuit or broken circuit
In addition, the performance curve of each color sub-pixel is not the same, and some color sub-pixels may experience performance changes earlier or more easily than others
[0003] Regardless of the reason for the performance change, there may be obvious uneven brightness or color unevenness on the display
Although the display still contains a vast majority of pixels that are functioning properly, a problem with only a few pixels may result in the user needing to replace the display

Method used

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Embodiment Construction

[0019] The terms first, second, third, upper, lower, left, right, etc. do not limit the specific position of an element, nor are they used to define any directional or order constraints. The preferred embodiments disclosed herein are only for the convenience of those skilled in the art to understand, and are not intended to limit the scope of the present disclosure. The scope of the present disclosure includes various equivalent or alternative implementations under the principles of the disclosed embodiments. and what can be clearly deduced by a person skilled in the art from this disclosure.

[0020] Such as figure 1 As shown, each pixel of the display in the prior art generally includes at least one red sub-pixel 10 , at least one blue sub-pixel 11 , and at least one green sub-pixel 12 . The sub-pixels of the three colors can form a color pixel as a whole. The red sub-pixel 10, the blue sub-pixel 11 and the green sub-pixel 12 may be arranged in an RGB arrangement or a Pent...

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Abstract

An embodiment of the present disclosure provides a method for performing image correction on a display, including sampling the sub-pixels of each color, and incrementing or decrementing the counter associated with the sub-pixels according to the comparison between the sampling value of the image correction parameter and the global average value , and determine whether to adjust the driving voltage of the corresponding sub-pixel according to the counter counts of the sub-pixel and its surrounding sub-pixels after the sampling is finished. The method can judge the region where the color display is uneven on the display, and improve the unevenness through the targeted adjustment of the driving voltage.

Description

technical field [0001] The present disclosure relates to the field of image display technology, and more specifically, to a method for image correction on a display. Background technique [0002] Various types of display panels, such as LCD, LED, OLED, etc., are usually included in current computers, tablets, mobile phones and other devices. Such displays are generally flat, ultra-thin display devices consisting of a large number of individually driven color pixels placed in front of a light source or reflector to generate images. A color pixel generally includes more than three sub-pixels, and each sub-pixel can be configured to display one of green, red, or blue, and each color of green, red, or blue includes at least one sub-pixel . In the process of use, the life of the liquid crystal display is generally about 5 years. After a long time of use, some pixels or sub-pixels in the LCD may have changes in brightness, contrast, saturation and other parameters due to variou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/2003G09G2320/0242
Inventor 杨建军
Owner 安徽立大加智能科技有限公司