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Driving circuit and driving method of liquid crystal display device, liquid crystal display device

A technology of a liquid crystal display device and a driving method, which can be applied to static indicators, instruments and other directions, and can solve the problems of screen flicker and residual charge of the display device.

Inactive Publication Date: 2020-11-10
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
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Problems solved by technology

[0002] Although the current liquid crystal display device is turned off, the power supply is cut off, but because the pixel capacitance charge of the pixel unit in the liquid crystal display device cannot be fully discharged, there will be residual charge, which will cause the screen of the liquid crystal display device to flicker at the moment of shutdown. How to improve the shutdown screen flickering is a problem that needs to be addressed

Method used

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  • Driving circuit and driving method of liquid crystal display device, liquid crystal display device
  • Driving circuit and driving method of liquid crystal display device, liquid crystal display device
  • Driving circuit and driving method of liquid crystal display device, liquid crystal display device

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Embodiment Construction

[0033] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0034] The liquid crystal display device is a passive light-emitting display device, which is equipped with a liquid crystal layer and a backlight source. By applying a voltage on the liquid crystal layer, the liquid crystal molecules are deflected, and the light emitted by the backlight source is modulated based on the principle of birefringence of the liquid crystal molecules. , to finally rea...

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Abstract

The invention discloses a driving circuit and driving method of a liquid crystal display device and a liquid crystal display device. The driving method comprises the steps of generating a trigger signal a first period of time after the liquid crystal display device is turned off, and controlling the grid break-over voltage of a thin film transistor in the liquid crystal display device to rise in asecond period of time according to the trigger signal. The driving method can avoid pixel capacitance charge residues in the liquid crystal display device, thereby solving the screen flicker problemof the liquid crystal display device at the moment of shutdown.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a driving circuit and a driving method of a liquid crystal display device, and a liquid crystal display device. Background technique [0002] Although the current liquid crystal display device is turned off, the power supply is cut off, but because the pixel capacitance charge of the pixel unit in the liquid crystal display device cannot be fully discharged, there will be residual charge, which will cause the screen of the liquid crystal display device to flicker at the moment of shutdown. How to improve the shutdown Sometimes the screen flicker phenomenon is a problem that needs to be solved. Contents of the invention [0003] The invention provides a driving circuit and a driving method of a liquid crystal display device, and a liquid crystal display device to solve the deficiencies in related technologies. [0004] According to a first aspect of the present invention, a me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3696G09G2320/02G09G2330/027
Inventor 高少洪许益祯肖利军黄莺
Owner BOE TECH GRP CO LTD
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