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Display device and shutdown ghost shadow eliminating method thereof

A display device and switch technology, applied in static indicators, nonlinear optics, instruments, etc., can solve problems such as the inability to guarantee the elimination of residual charges and liquid crystal panel residual charges

Inactive Publication Date: 2018-01-16
HKC CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the limitation of liquid crystal charging and discharging speed, some charges may remain on the liquid crystal panel when it is turned off, which may cause the human eye to see after-image after power off
The current common practice is to generate a control signal when the power is turned off, so that the gate driver chip (Gate Driver) turns on the TFT switches of all channels at the same time, hoping to let the charge be released as soon as possible, but at this time due to the data driver chip (Data Driver) The output is uncertain, so the discharge effect will vary with the display data of the screen, so this method cannot guarantee to completely eliminate the residual charge. Therefore, how to improve the discharge of the above-mentioned conventional gate drive chip to the liquid crystal panel Therefore, a low-cost and easy-to-process method for eliminating power-off afterimages is proposed

Method used

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  • Display device and shutdown ghost shadow eliminating method thereof
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  • Display device and shutdown ghost shadow eliminating method thereof

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Embodiment Construction

[0025] The following descriptions of the various embodiments refer to the attached drawings to illustrate specific embodiments that the present application can be implemented in. The directional terms mentioned in this application, such as "up", "down", "front", "rear", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application.

[0026] The drawings and descriptions are to be regarded as illustrative in nature and not restrictive. In the figures, structurally similar units are denoted by the same reference numerals. In addition, the size and thickness of each component shown in the drawings are arbitrarily shown for understanding and convenience of description, but the present application is not limited thereto.

[0027] In the drawings, the thickness of layers, films, panels, regions, etc., ar...

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Abstract

The invention provides a display device and a shutdown ghost shadow eliminating method thereof. The display device comprises a substrate, a plurality of scanning lines arranged on the substrate, a plurality of data lines arranged on the substrate and intersecting with the scanning lines to define a plurality of pixel areas, a plurality of active switches arranged on the substrate and located in the pixel areas, and a plurality of control switches arranged on the substrate, wherein the control end of each active switch is coupled with the corresponding scanning line, the first end of each active switch is coupled with the corresponding data line, the second end of each active switch is coupled with a public electrode voltage, the first end of each control switch is coupled with the corresponding data line, the second end of each control switch is coupled with the public electrode voltage, the control end of each control switch is coupled with a grid voltage, and the on-off state of thecontrol switch is adjusted through the voltage difference of the grid voltage and the public electrode voltage.

Description

technical field [0001] The present application relates to a method for eliminating image sticking, in particular to a display device and a method for eliminating image sticking after shutdown. Background technique [0002] Liquid crystal display (Liquid Crystal Display, LCD) has been widely used recently. With the improvement of drive technology, it has the advantages of low power consumption, thin and light weight, and low voltage drive. It has been widely used in video recording Video projectors, notebook computers, desktop display devices and various projection equipment. [0003] And the liquid crystal display device generally has a gate driving circuit, a source driving circuit and a pixel array. There are multiple pixel circuits in the pixel array, and each pixel circuit is turned on and off according to the scan signal provided by the gate drive circuit, and displays a data frame according to the data signal provided by the source drive circuit. [0004] Due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/1368G09G3/36
CPCG09G3/3648G09G3/3677G09G2300/0426G09G2310/0248G09G2330/027G02F1/1362G02F1/1368G09G3/20G09G2310/0278G09G2320/0257
Inventor 扶伟
Owner HKC CORP LTD
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