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Shutdown discharge circuit and display module set

A display module and discharge circuit technology, applied to static indicators, instruments, etc., can solve problems such as afterimages, data line charges cannot be completely released and shut down, and achieve the effect of avoiding afterimages

Inactive Publication Date: 2018-06-15
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a power-off discharge circuit and a display module, which can solve the problem in the prior art that the residual charge in the data line cannot be completely released when the power is turned off, resulting in afterimages after power-off

Method used

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  • Shutdown discharge circuit and display module set
  • Shutdown discharge circuit and display module set

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Embodiment approach

[0056] According to another specific implementation manner, the first discharge unit is specifically configured to, when its control terminal receives the first discharge control signal, control the second terminals of the plurality of data lines to be connected to each other, so as to release the Charge remaining in multiple data lines. In a specific implementation, it is also possible to control the second ends of multiple data lines to be connected to each other to release the charges in the data lines when the power is turned off, so as to accelerate the discharge of charges at the remote ends of the data lines.

[0057] Specifically, the first discharge unit may include N-1 remote discharge transistors; N is the number of data lines included in the display module; N is an integer greater than 1;

[0058] The gate of the mth remote transistor included in the first discharge unit is connected to the first discharge control line, and the first pole of the mth remote transist...

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Abstract

The invention provides a shutdown discharge circuit and a display module set. The shutdown discharge circuit includes a discharge control unit, a first discharge control line, and a first discharge unit; the discharge control unit is connected with the first discharge control line and is used for outputting a first discharge control signal to the first discharge control line under the control of ashutdown signal when the display module set is turned off; the control end of the first discharge unit is connected with the first discharge control line; the first discharge unit is also connected with the second ends of a plurality of data lines; and the first discharge unit is used for releasing charges left in the plurality of data lines when the control end of the first discharge unit receives the first discharge control signal. With the shutdown discharge circuit and the display module set of the invention adopted, the problem of shutdown ghosting caused by a condition that charges leftin data lines cannot be completely released in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shutdown discharge circuit and a display module. Background technique [0002] Large-size, high-resolution liquid crystal display panels are faced with the bottleneck of high panel load, and the data lines on the display panel will be incompletely discharged when the display panel is turned off, resulting in residual images after the display panel is turned off. Especially at the end where the data line is far away from the Source Driver (source driver), the RC delay is relatively large. Because it is far away from the source driver, the residual charge on the data line has a poor dissipating effect during power-off discharge and cannot Completely dissipated, there will be afterimage after shutdown. Contents of the invention [0003] The main purpose of the present invention is to provide a power-off discharge circuit and a display module, which solves the problem in the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G2320/0257
Inventor 李涛周留刚栗首廖燕平
Owner BOE TECH GRP CO LTD
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