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Gate driving circuit and method and display device

A gate drive circuit, gate drive technology, used in static indicators, instruments, etc.

Active Publication Date: 2014-12-03
XIAMEN TIANMA MICRO ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing shift register can only enable the gate drive circuit to scan in one direction

Method used

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  • Gate driving circuit and method and display device
  • Gate driving circuit and method and display device
  • Gate driving circuit and method and display device

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Embodiment Construction

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0066] As described in the background art, generally, a gate driving circuit may be formed on a TFT panel. The gate driving circuit may include a plurality of cascaded gate driving units, and each level of gate driving units is connected to a corresponding gate line to output a gate driving signal. However, existing gate drive circuits perform unidirectional scanning.

[0067] In order to solve the above problems, an embodiment of the present application prov...

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Abstract

The invention discloses a gate driving circuit and method and a display device. The gate driving circuit comprises a plurality of cascaded gate driving units. Each gate driving unit comprises a shifting register and a scan control circuit, wherein the shifting register comprises a first switch tube, a second switch tube, a third switch tube, a fourth switch tube, a fifth switch tube, a sixth switch tube, a seventh switch tube, a first storage capacitor, a second storage capacitor, a first shifting signal input terminal, a second shifting signal input terminal and a signal output terminal, and the scan control circuit is used for controlling the gate driving circuit to achieve the forward scan or reverse scan and comprises a first control terminal, a second control terminal, a first scan signal input terminal, a second scan signal input terminal, a first scan output terminal and a second scan output terminal, the first shifting signal input terminal is connected with the first scan output terminal, and the second shifting signal input terminal is connected with the second scan output terminal. By means of the technical scheme, forward scan and reverse scan of the gate driving circuit are achieved.

Description

technical field [0001] The present invention relates to the technical field of displays, and more specifically, to a gate driving circuit, a driving method thereof, and a display device. Background technique [0002] The driving device of the thin film transistor (thin film transistor, TFT) display mainly includes: a gate driving circuit and a data driving circuit, wherein the gate driving circuit outputs various input control signals to the gate of the display panel after passing through the shift register on-line. [0003] Generally, a gate driving circuit can be formed on a TFT panel. The gate driving circuit may include a plurality of cascaded shift registers, and each stage of shift registers is connected to a corresponding gate line to output gate driving signals. However, the existing shift register can only enable the gate driving circuit to perform unidirectional scanning. Contents of the invention [0004] In order to solve the above problems, the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
Inventor 周莉钱栋草剪英则
Owner XIAMEN TIANMA MICRO ELECTRONICS