Gate turn-on voltage compensation circuit, display panel, driving method and display device

Abstract

The invention discloses a gate open voltage compensation circuit, a display panel, a driving method thereof and a display device. The gate open voltage compensation circuit includes: a voltage generation module, a clock control module and a chamfering module; wherein, the voltage generation module is used for The generated first voltage signal and the second voltage signal are correspondingly output to the first voltage input end and the second voltage input end of the chamfering module; The voltage signal after the angle, so that the chamfering depth of the gate turn-on voltage signal input to each gate driver chip is different in different time periods, because the gate turn-on voltage signal needs to go through different lengths of wiring to reach the gates of each level. Therefore, the gate turn-on voltage, that is, the gate scanning signal, which each gate driver chip finally outputs to each gate line can be relatively uniform, thereby improving the phenomenon of horizontal two-split screen and improving the quality of the display picture.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a gate turn-on voltage compensation circuit, a display panel, a driving method thereof and a display device. Background technique [0002] At present, display technology is widely used in the display of TV, mobile phone and public information. The flat-panel display used to display the picture is vigorously promoted because of its ultra-thin and energy-saving advantages, and gate driver chips are required in most flat-panel displays. To output the gate scanning signal to control the display panel to realize the functions of progressive scanning and frame-by-frame refresh, so that the image data input to the display panel can be refreshed in real time, thereby realizing dynamic display. [0003] In order to realize the progressive scanning of the display panel, usually a plurality of gate drive chips are arranged in the peripheral area of ​​the display panel to input the ...

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Problems solved by technology

[0003] In order to realize the progressive scanning of the display panel, usually a plurality of gate drive chips are arranged in the peripheral area of ​​the display panel to input the gate turn-on voltage to the gate lines of the display area, such as figure 1 As shown, one side of the peripheral area of ​​the display panel, such as the left side, is provided with two gate drive chips GD1 and GD2, and the gate turn-on voltage is generated by the voltage generation module DC, and then output to the cascaded gate drive chips GD1 and GD2 , the gate drive chips GD1 and GD2 output gate scan signals to the gate lines of the display area in sequence under the control of the clock control module TCON to realize the progressive scan of the display panel. However, since the gate open voltage signal passes through the gate drive chip GD1 Transmission to the gate driver chip GD2. During the transfer process, due to the long wiring, the wiring impedance of the gate turn-on voltage signal on the gate driver chip GD1 is inconsistent with the trace impedance of the gate turn-on voltage signal on the gate driver chip GD2. , the gate turn-on voltage output by the gate driver chip GD1, that is, the gate scan signal, is different from the gate scan signal output by the gate driver chip GD2, so that the gate turn-on voltages output by different gate driver chips are different, resulting in The phenomenon of horizontal two-split screen affects the quality of the display screen

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