Driving circuit of display panel, display module, compensation method of display module and display device

Abstract

The embodiment of the invention discloses a driving circuit of a display panel, a display module, a compensation method of the display module and a display device. According to the driving circuit, a TCON circuit board with multiple groups of reference voltage output ends is adopted to independently input reference voltage to each driving chip through reference voltage input lines of corresponding groups; each driving chip receives an independent reference voltage signal, so that the reference voltage output by the TCON circuit board corresponding to each driving chip can be adjusted, the reference voltages received by all the driving chips are the same, and all the driving chips output consistent gamma voltages. The split-screen phenomenon of display of the display panel caused by inconsistent gamma voltages output by different driving chips due to factors such as different impedances of each group of reference voltage input lines is avoided, and the display quality is improved.

Description

technical field [0001] The present invention relates to the technical field of display modules, in particular to a drive circuit of a display panel, a display module and a compensation method thereof, and a display device. Background technique [0002] With the continuous development of display technology, large-size display panels are increasingly favored by people. With the continuous increase of display panels, the requirements for driving capabilities are also getting higher and higher. Therefore, it is necessary to integrate multiple The driver chip (source IC) is spliced ​​to drive the display panel. Each driving chip is independent and is provided with its own gamma circuit, and the gamma circuit is used to generate a gamma voltage to drive the display panel for display. In order to ensure that there is no split-screen phenomenon when displaying a large-size display panel, the gamma voltages output by each driver chip must be consistent. However, due to reasons such ...

AI Technical Summary

Problems solved by technology

In order to ensure that there is no split-screen phenomenon when displaying a large-size display panel, the gamma voltages output by each driver chip must be consistent. However, due to reasons such as manufacturing process and circuit structure, the gamma voltage output by each driver chip is inconsistent. It is easy to cause split screen phenomenon, resulting in poor display effect and poor user experience

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