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Display device and shutdown driving method thereof

A display device and display panel technology, which is applied to static indicators, nonlinear optics, instruments, etc., can solve the problems of residual charge on the liquid crystal panel, the difference in the effect of discharge, and the inability to guarantee the elimination of residual charge, so as to achieve the elimination of shutdown afterimage, The effect of improving product quality

Inactive Publication Date: 2018-07-06
HKC CORP LTD +1
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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
A common practice is to generate a control signal when shutting down, so that the gate driver chip (Gate Driver) turns on the active switches of all channels at the same time, hoping to let the charge go 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 display panel by the above-mentioned gate drive chip In view of the lack of technology, a low-cost and easy-to-process device and method for eliminating residual image after shutdown is proposed

Method used

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  • Display device and shutdown driving method thereof
  • Display device and shutdown driving method thereof
  • Display device and shutdown driving method thereof

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Embodiment Construction

[0026] 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.

[0027] 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.

[0028] In the drawings, the thickness of layers, films, panels, regions, etc., ar...

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Abstract

The application provides a display device and a shutdown driving method thereof. The display device comprises a display panel, a common electrode and a control unit. The display panel includes at least one scan line, at least one data line intersecting with the at least one scan line, and at least one active switch connected with the at least one scan line and the at least one data line. The common electrode is arranged on the display panel and is connected with the at least one active switch, and the common electrode has a common electrode voltage. The control unit has one or more control switches, wherein a first end of the control switch is coupled to the common electrode, a second end is coupled to a discharge module, and a control end is coupled to a switching voltage. The state of the control switch is regulated according to the voltage difference between the switching voltage and the common electrode voltage.

Description

technical field [0001] The present application relates to the display field, in particular to a display device and a shutdown driving method thereof. 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 and low voltage drive. It has been widely used in video recorders, video recorders, 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 presents a corresponding picture according to the data signal provided by the source drive circuit. [0004] Due to the limitation of liquid crystal charging and discharging s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3648G09G2330/027G09G3/3655G09G3/3659G02F1/136286
Inventor 扶伟
Owner HKC CORP LTD
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