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Driving circuit and driving method thereof and liquid crystal display (LCD)

A technology of a driving circuit and a driving method, which is applied to static indicators, instruments, etc., can solve the problems of afterimages, afterimages cannot be quickly eliminated, and pixel capacitors and storage capacitors cannot be quickly discharged, so as to improve display performance and solve problems. afterimage effect

Active Publication Date: 2012-12-26
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, image sticking may still occur within 200 ms after the backlight is turned off using the method of the prior art
Moreover, in the method of the prior art, the reset signal is output only when the input voltage is detected to drop to a certain value, and the input voltage at this time is still in a critical state that makes the power module and the driver IC work, and the output voltage drops The time is generally 0 ~ 10ms (the power module and the gate drive IC are in a critical state), then the pixel capacitance and storage capacitance of the TFT-CDL cannot be discharged quickly, so that the residual image cannot be quickly eliminated

Method used

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  • Driving circuit and driving method thereof and liquid crystal display (LCD)
  • Driving circuit and driving method thereof and liquid crystal display (LCD)
  • Driving circuit and driving method thereof and liquid crystal display (LCD)

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] Figure 1A It is a schematic top view structural diagram of a liquid crystal display provided by an embodiment of the present invention, Figure 1B for Figure 1A Schematic diagram of the enlarged structure of the drive circuit, such as Figure 1A and Figure 1B As shown, this embodiment provides a liquid crystal display, which may include...

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Abstract

A driving circuit for a liquid crystal display comprises a light sensitive element configured to be arranged on a liquid crystal panel of the liquid crystal display, and detect an operation state of a backlight source of the liquid crystal display; and a reset signal output device configured to receive an input signal from the light sensitive element in accordance with the operation state of the backlight source, and output a reset signal to a gate line driver of the liquid crystal display so as to turn on all of gate lines on the liquid crystal panel.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a driving circuit, a driving method thereof and a liquid crystal display. Background technique [0002] A liquid crystal display is a commonly used flat panel display at present, and a thin film transistor liquid crystal display (ThinFilm Transistor Liquid Crystal Display, TFT-LCD for short) is a mainstream product in the liquid crystal display. With the development of the LCD industry, large-size LCD products have gradually become the mainstream of the market, and the increase in the size of the LCD will lead to an increase in the resistance and capacitance of the data lines and gate lines. Image sticking occurs. [0003] In the prior art, the afterimage phenomenon in the LCD screen is eliminated by using a power module with a reset function or an independent chip with a reset function. It mainly detects the input voltage of TFT-LCD. When the input voltage is lower than a r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G2360/145G09G3/3677G09G2310/063
Inventor 于尧
Owner BOE TECH GRP CO LTD
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