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Circuit for eliminating shutdown ghost shadows and array substrate

A power-off afterimage and array substrate technology, which is applied to static indicators, instruments, etc., can solve the problems that the charge cannot be released immediately and the image remains.

Active Publication Date: 2013-09-04
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the TFT-LCD power supply is turned off, a part of the previous image usually remains, which is due to the accumulation of charge in the liquid crystal capacitance between the two opposite electrodes after the display displays the image for a long time, and the accumulated The charge cannot be released immediately after the power is turned off, so a part of the previous image will remain after the power is turned off

Method used

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  • Circuit for eliminating shutdown ghost shadows and array substrate
  • Circuit for eliminating shutdown ghost shadows and array substrate
  • Circuit for eliminating shutdown ghost shadows and array substrate

Examples

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Embodiment 1

[0050] The embodiment of the present invention provides a circuit for eliminating afterimage after shutdown, such as image 3 As shown, the circuit includes: multiple capacitors C 1 、C 2 …C X , a plurality of first switch units T1 1 , T1 2 …T1 X , and a plurality of second switch units T2 1 , T2 2 , T2 3 , T2 4 …T2 N ; N is the number of grid lines, and X is a positive integer smaller than N.

[0051] Wherein, each capacitor includes: a first electrode 101 and a second electrode 102, and the first electrode 101 of the capacitor is connected to the reference voltage terminal V0.

[0052] Each of the first switch units includes: a first control terminal 201, a first input terminal 202, and a first output terminal 203; the first output terminal 203 of the first switch unit is connected to the second electrode 102 of the capacitor, so The first control terminal 201 and the first input terminal 202 of the first switch unit are connected to the first voltage terminal V1. ...

Embodiment 2

[0068] The embodiment of the present invention provides a circuit for eliminating afterimage after shutdown, such as Figure 5 As shown, the circuit includes: multiple capacitors C 1 、C 2 …C i …C N , a plurality of first switching units T1 1 , T1 2 …T1 i …T1 N , a plurality of second switching units T2 1 , T2 2 …T2 i …T2 N , and a plurality of third switching units T3 1 , T3 2 …T3 i …T3 N-1 ; N is the number of grid lines, and i is an integer greater than 1 and less than N.

[0069] Each capacitor C i It includes: a first electrode 101 and a second electrode 102, the first electrode 101 of the capacitor is connected to the reference voltage terminal V0.

[0070] Each first switch unit T1 i It includes: a first control terminal 201 , a first input terminal 202 and a first output terminal 203 . Specifically, the first first switch unit T1 1 The first control terminal 201 and the first input terminal 202 are connected to the first voltage terminal V1, and the f...

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PUM

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Abstract

The embodiment of the invention provides a circuit for eliminating shutdown ghost shadows and an array substrate and relates to the technical field of display, and the ghost shadows generated after a display device is shut down can be eliminated. The circuit comprises a charging module and a discharging module, wherein the charging module is connected with a first voltage end to be used for storing electric charge under the control of the first voltage signal input by the first voltage end; and the discharging module is connected with the charging module and a second voltage end to be used for providing the electric charge stored by the charging module to a grid line under the control of the second voltage signal input by the second voltage end.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a circuit and an array substrate for eliminating residual images after shutdown. Background technique [0002] At present, Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) is widely used in electronic products closely related to life, such as notebook computers, mobile phones, and televisions. However, when the TFT-LCD power supply is turned off, a part of the previous image usually remains, which is due to the accumulation of charge in the liquid crystal capacitance between the two opposite electrodes after the display displays the image for a long time, and the accumulated The charge cannot be released immediately after the power is turned off, so a part of the previous image will still remain after the power is turned off. Contents of the invention [0003] Embodiments of the present invention provide a circuit and an array substrate for eliminating residual...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG09G3/20G09G3/3611G09G2310/0245G09G2320/0257G09G2330/027G09G3/3674G09G2310/0251G09G3/3622G09G3/3696
Inventor 刘荣铖
Owner HEFEI BOE OPTOELECTRONICS TECH
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