Panel compensation device and method

Abstract

The invention relates to the display technology, and more particularly relates to a panel compensation device and a panel compensation method used for eliminating uneven brightness of an LCD panel, and a display device comprising the panel compensation device. The panel compensation device comprises a first input end, a second input end, a compensation unit and an output end, wherein the first input end is configured to receive a display driving signal applied on each pixel; the second input end is configured to receive a temperature signal associated with each pixel; the compensation unit is coupled with the first input end and the second input end, and is configured to compensate for the display driving signals of the pixels in an abnormal display region from the first input end, so that the pixels have identical brightness under the same voltage level of the display driving signals; and the output end is coupled with the compensation unit, and is configured to output the compensated display driving signals.

Description

technical field [0001] The present invention relates to display technology, in particular, to a panel compensation device and method and a display device including the above device. Background technique [0002] In a typical active-matrix liquid crystal display, each pixel has a thin-film transistor (TFT), whose gate is connected to the horizontal scan line, the drain is connected to the vertical data line, and the source is connected to the pixel electrode. When a sufficient positive voltage is applied to a scanning line in the horizontal direction, all the TFTs on the line will be turned on. At this time, the pixel electrode of this line will be connected to the data line in the vertical direction, and the video signal will be written Into the pixel, the effect of controlling the color can be achieved by controlling the different light transmittance of the liquid crystal. [0003] During the manufacturing process of the liquid crystal panel, due to unstable manufacturing ...

AI Technical Summary

Problems solved by technology

The display flaws described above are completely unacceptable to users

[0004] The existence of display defects will reduce the yield of LCD panels

Although the industry has tried to reduce this defect by improving the manufacturing process to improve the yield, this will lead to a significant increase in manufacturing costs

Therefore, how to eliminate or suppress the uneven brightness of LCD panels at low cost has become a thorny problem that plagues the industry.

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