Shift register electrode, grid electrode driver, array substrate and display device

A shift register and gate driver technology, applied in static memory, digital memory information, instruments, etc., can solve problems such as threshold voltage drift, shortening of shift register life, affecting the normal operation of gate driver, etc. Threshold voltage drift, noise reduction, and high reliability effects

Inactive Publication Date: 2012-09-05
BOE TECH GRP CO LTD +1
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Problems solved by technology

The advantage of this design is that there is no need to change the current shift register circuit diagram, but the disadvantage is that if this scheme is adopted, the node PD is designed to be high potential and half high potential, which will make TFT M10 and TFM11 in a long-term on state
The threshold voltage of TFT h

Method used

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  • Shift register electrode, grid electrode driver, array substrate and display device
  • Shift register electrode, grid electrode driver, array substrate and display device
  • Shift register electrode, grid electrode driver, array substrate and display device

Examples

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[0039] The stages of the shift register, the gate driver, the array substrate, and the display device proposed by the present invention are described in detail below with reference to the drawings and embodiments.

[0040] The core idea of ​​the present invention is: by adding a pull-down module, on the basis of the original shift register stage, when the clock input signal CLK arrives, the coupling voltage of the pull-up node PU (that is, the noise of the pull-up node PU) is performed Discharge to reduce the noise, and at the same time discharge the output terminal, thereby reducing the output signal noise and increasing the stage stability of the shift register; at the same time, by adding the pull-down module, the TFT of the original pull-down module is reduced State time, reduce the application time of the gate bias stress, thereby prolonging the working life of the original TFT, thereby extending the life of the shift register stage, the entire shift register, the gate driver...

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Abstract

The invention discloses a shift register electrode, a grid electrode driver, an array substrate and a display device, relating to the technical field of liquid crystal display. The electrode comprises a pull-up module, a first pull-down module, a second pull-down module, a pull-up drive module, a pull-down drive module and a reset module, wherein the first pull-down module is used for outputting shut-off signals to an output terminal according to signals input from a clock block signal input terminal and signals input from a reset signal input terminal; the second pull-down module is used for outputting shut-off signals to the output terminal according to signals input from a clock signal input terminal; and the phases of signals input from a signal input terminal are the same with those of the signals input from the clock signal input terminal, and the phases of the signals input from the clock signal input terminal are the same with those of the signals input from the clock block signal input terminal. The shift register electrode can be used for effectively avoiding the defect of threshold voltage drift caused by bias stress on a grid electrode, and can reduce noises generated during outputting voltages.

Description

technical field [0001] The present invention relates to the technical field of liquid crystal display, in particular to a stage of a shift register, a gate driver, an array substrate, and a display device. Background technique [0002] A Liquid Crystal Display (LCD) has the advantages of light weight, thin thickness, and low power consumption, and is widely used in electronic products such as televisions, mobile phones, and monitors. [0003] The LCD is composed of a matrix of pixels in both horizontal and vertical directions. When displaying, the gate input signal is output through the gate drive circuit, and each pixel is scanned row by row. The driving of the LCD mainly includes a gate driver and a data driver. The data driver latches the input display data and the clock signal in a timing sequence, converts it into an analog signal and then inputs it to the data line of the LCD panel, and the gate driver shifts the input clock signal Register conversion, switching to on...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCG11C19/28G09G3/20G09G3/36G11C19/00H03K5/00
Inventor 马睿邵贤杰王国磊胡明林炳仟涂志中
Owner BOE TECH GRP CO LTD
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