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Grid electrode driving circuit, driving method and liquid crystal display device

A technology of gate drive circuit and liquid crystal display device, which is applied to static indicators, instruments, etc., and can solve the problems that bidirectional shift registers cannot be reset normally.

Active Publication Date: 2013-04-17
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a gate drive circuit, a drive method and a liquid crystal display device to solve the problem that the first stage bidirectional shift register and the last stage bidirectional shift register of the bidirectional shift register circuit cannot work normally. reset problem

Method used

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  • Grid electrode driving circuit, driving method and liquid crystal display device
  • Grid electrode driving circuit, driving method and liquid crystal display device
  • Grid electrode driving circuit, driving method and liquid crystal display device

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Embodiment Construction

[0044] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] figure 2 is a schematic circuit diagram of the gate drive circuit according to an embodiment of the present invention, such as figure 2 As shown, the gate drive circuit includes:

[0046] The multi-stage bidirectional shift registers (SR1, SR2, ... SRN) are connected to each other in such a way that the output signal from the output terminal OUTPUT of each bidirectional shift register is input to the inverse of the bidirectional shift register of the previous stage. To the pulse input terminal INPUT_B, and input to the forward pulse input terminal INPUT_F of the bidirectional shift register of the latter stage, the bidirectional shift register of each level is u...

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Abstract

The invention discloses a grid electrode driving circuit, a driving method and a liquid crystal display device. The grid electrode driving circuit comprises a multi-stage bidirectional shift register, a first reset circuit and a second reset circuit, wherein the first reset circuit comprises a first input end, a second input end, a first clock control end, a reset output end and a low level signal end, the first input end and the second input end are electrically connected with an input end of a primary bidirectional shift register and a reverse pulse input end respectively, the first clock control end is in signal connection with a second clock, and the reset output end is connected with an output end of the primary bidirectional shift register. The problem that the primary bidirectional shift register and the last bidirectional shift register in the circuit of the bidirectional shift register cannot be correctly reset through STV (Subscription TeleVision) signals is solved by the grid electrode driving circuit, the driving method and the liquid crystal display device.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a gate drive circuit, a drive method and a liquid crystal display device. Background technique [0002] The bidirectional scanning gate drive circuit can be implemented by using the original shift register to make simple structural adjustments, but the original reset circuit is no longer applicable. In the existing bidirectional scanning gate drive circuit, when the gate scanning start signal (STV signal) is used alone to reset the first-stage bidirectional shift register and the last-stage shift register, because there is a blank (Dummy) time, The STV signal is not exactly a signal of one unit time output by the first or last stage shift register. For example, corresponding to the STV signal, the scanning time of one frame of a panel with a resolution of 1920*1080 is (N×one unit time), N>1080, {(N-1080)×one unit time} is the time of Dummy. Wherein, one unit t...

Claims

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Application Information

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IPC IPC(8): G09G3/20G09G3/36
Inventor 张玉婷
Owner BOE TECH GRP CO LTD
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