Displacement register and grid drive deivce thereof

A shift register and gate technology, which is applied in static memory, digital memory information, instruments, etc., can solve problems such as gate threshold voltage rise, reduce gate threshold voltage rise, ensure stable operation, and avoid gate The effect of raising the pole threshold voltage

Active Publication Date: 2009-04-01
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a shift register and its gate drive device, which can effectively sol

Method used

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  • Displacement register and grid drive deivce thereof
  • Displacement register and grid drive deivce thereof
  • Displacement register and grid drive deivce thereof

Examples

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Embodiment Construction

[0037] figure 1 It is a structural schematic diagram of the shift register of the present invention. Such as figure 1 As shown, the main structure of the shift register of the present invention includes three thin film transistors, four control modules and corresponding output terminals, and the three thin film transistors are the first thin film transistor T1, the ninth thin film transistor T9 and the eleventh thin film transistor T11 , the four control modules are the first control module C1, the second control module C2, the third control module C3 and the fourth control module C4, the output terminal is the output terminal OUTn-1 of the shift register of the upper stage, and the shift The output terminal OUTn of the register, the output terminal OUTn+1 of the next stage shift register, the negative terminal VSS of the power supply, the first clock signal output terminal CKV1 and the second clock signal output terminal CKV2, wherein the output terminal OUTn of the current ...

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PUM

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Abstract

The invention relates to a shift register and a gate driving device thereof. The shift register comprises a first film transistor which is directly deposited on an array substrate, a ninth film transistor, an eleventh film transistor and a plurality of control modules. The gate driving device comprises a displacement initial signal output end, a gate off-state voltage output end, a first clock signal output end, a second clock signal output end, a first shift register and a second shift register. The shift register and the gate driving device lower the gate bias stress of the film transistor, avoid the rise of the gate threshold voltage to the maximum, prolong the service life of the film transistor and avoid the misoperation that the film transistor is closed during the invalid state. Compared with the prior art, no additional power supplying circuit is required, the circuit is simple, the stable working can be ensured, and the cost is low.

Description

technical field [0001] The invention relates to a shift register and a gate driving device thereof, in particular to a shift register and a gate driving device thereof in a liquid crystal display driving circuit. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) has the characteristics of light weight, thin thickness and low power consumption, and is widely used in mobile phones, monitors, televisions and other devices. [0003] In order to display images, TFT-LCD displays with a progressive scan matrix of m×n dots. The TFT-LCD driver mainly includes a gate driver and a data driver. The data driver latches the input display data and clock signals in a timing sequence, converts them into analog signals and inputs them to the data lines of the LCD panel, and the gate driver passes the input clock signals through The shift register is converted, switched to on / off voltage, and applied to the LCD panel in sequence. In an active matrix thin fil...

Claims

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Application Information

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IPC IPC(8): G11C19/28
Inventor 韩承佑
Owner K TRONICS (SUZHOU) TECH CO LTD
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