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Display panel and bright line repairing method of display panel

A technology for display panels and repair methods, applied to static indicators, instruments, etc., can solve problems such as bad repair bright lines

Inactive Publication Date: 2019-08-30
NANJING CEC PANDA LCD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a display panel and a bright line repair method of the display panel, which can eliminate the problem of bright lines caused by poor repair caused by GDM circuits

Method used

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  • Display panel and bright line repairing method of display panel
  • Display panel and bright line repairing method of display panel
  • Display panel and bright line repairing method of display panel

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0038] The invention provides a method for repairing bright lines of a display panel, such as image 3 As shown, the display panel includes a timing controller (Tcon) 10, a level shifter (Lever shifter, LS) 20, a source driver IC (Source driver IC) 30, a plurality of gate lines 50, a plurality of data lines 60 and Multi-row gate drive circuit (GDM) 40 . The gate lines 50 and data lines 60 are located in the display area of ​​the display panel and distributed in a criss-...

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Abstract

The invention provides a display panel and a bright line repairing method of the display panel. The display panel comprises a time sequence controller used for outputting a grid control signal, a level converter connected with the time sequence controller and used for outputting a grid clock signal, and a grid driving circuit used for driving a grid line. When one or more gate lines of the displaypanel are bright lines, the repairing method comprises the following steps that the time sequence controller directionally increases the coupling voltage of the line where the gate lines are locatedand reduces the coupling voltage difference between the line where the gate lines are located and the line where the normal gate lines are located. According to the invention, the duty ratio of the gate control signal output by the time sequence controller in the line where the gate line in the bright line is located is reduced; the gate opening high voltage of the row where the gate line of the bright line is located is increased, the coupling voltage of the row where the gate line of the bright line is located is directionally increased, the difference between the coupling voltage of the rowwhere the gate line of the bright line is located and the upper and lower normal rows is reduced, and the bright line in the display panel is eliminated.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display panel and a method for repairing bright lines of the display panel. Background technique [0002] Display panels widely use GDM (Gate Driver Monolithic) circuits, that is, directly fabricate thin film transistor (Thin Film Transistor, TFT) circuits on both sides of the array (Array) substrate and form bilateral drives, thereby eliminating the need for IC (Integrated Circuit, integrated Circuit) bonding (Bonding) and fan-out (Fan-Out) areas occupy space to achieve cost reduction in terms of materials and manufacturing processes and narrowing of the borders on both sides of the panel. The GDM circuit also has disadvantages: Once the connection between the GDM circuit and the gate line (Gate Line) is bad, the GDM circuit cannot be cascaded to transmit the gate signal, which will easily cause the entire picture to be different. At this time, it cannot be repaired by replac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20
Inventor 陈声伟李杰
Owner NANJING CEC PANDA LCD TECH