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Shift register, gate drive circuit and display device

A shift register and gate technology, applied in static memory, digital memory information, instruments, etc., can solve the problems of difficult application and high production cost, and achieve the effect of reducing production cost and improving product competitiveness

Active Publication Date: 2014-11-05
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, an embodiment of the present invention provides a shift register, a gate drive circuit and a display device, which are used to solve the application of the existing gate drive circuit on products with large size, high resolution and high frame scanning frequency Difficult and costly to produce

Method used

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  • Shift register, gate drive circuit and display device
  • Shift register, gate drive circuit and display device
  • Shift register, gate drive circuit and display device

Examples

Experimental program
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Effect test

example 1

[0102] by Figure 4a The input-output timing diagram shown is an example for Figure 3a The working process of the shift register shown is described, specifically, select as Figure 4a There are five stages T1-T5 in the input and output sequence diagram shown.

[0103] In the T1 stage, Input=1, Reset=0, CK=0, CKB=1. Since Input=1, the first transistor T1, the third transistor T3, the fifth transistor T5 and the seventh transistor T7 are turned on, the signal of the pull-down node PD is a low potential pull-up signal, and the eighth transistor T8 is turned off; because Reset=0 , so the fourth transistor T4 and the sixth transistor T6 are turned off; since CK=0, the potential at point A is low, the second transistor T2 is turned off, and the signal of the pull-up node PU is a low-potential pull-up signal; since the pull-up node The signal of PU is a low-potential pull-up signal, so the tenth transistor T10 and the twelfth transistor T12 are turned off; since the signal of the...

example 2

[0109] by Figure 4b The input-output timing diagram shown is an example for Figure 3a The working process of the shift register shown is described, specifically, select as Figure 4b There are five stages T1, T2, T3', T4 and T5 in the input and output timing diagram shown.

[0110] In the T1 stage, Input=1, Reset=0, CK=0, CKB=1. The specific working process is the same as the T1 stage in Example 1.

[0111] In the T2 stage, Input=1, Reset=0, CK=1, CKB=0. The specific working process is the same as the T2 stage in Example 1.

[0112]In the T3' phase, Input=1, Reset=1. Since Input=1, the first transistor T1, the third transistor T3, the fifth transistor T5 and the seventh transistor T7 are turned on; because Reset=1, the fourth transistor T4 and the sixth transistor T6 are turned on; because the third transistor T3, the fourth transistor T4, and the fifth transistor T5 are all turned on, and CK and CKB work together, so whether it is in the stage of CK=1, CKB=0, or in th...

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Abstract

The invention discloses a shift register, a gate drive circuit and a display device. The shift register includes a pre-charging module, a pull-up control module, a pull-down control module, a pull-down module and a pull-up module. The shift register is capable of realizing change of the charging time of a gate scanning line only through change of time of signal input without changing of clock signals, modification of circuit or change of the process so that application on a narrow-frame product of large size, ultra-high resolution and high frame scanning frequency is realized and difficulty in realization of gate drive of the narrow-frame product of large size, ultra-high resolution and high frame scanning frequency is effectively reduced and thus production cost is reduced and product competitiveness is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register, a gate drive circuit and a display device. Background technique [0002] In today's era of rapid technological development, liquid crystal displays have been widely used in electronic display products, such as televisions, computers, mobile phones and personal digital assistants. The liquid crystal display includes a data driving circuit (Source Driver), a gate driving circuit (Gate Driver), and a liquid crystal display. The liquid crystal display has a pixel array, and the gate drive circuit is used to sequentially turn on corresponding pixel rows in the pixel array, so as to transmit the pixel data output by the data drive circuit to the pixels, and then display the image to be displayed. At present, the gate driving circuit is mostly integrated inside the liquid crystal display to realize the narrow frame design of the liquid crystal display device and save...

Claims

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Application Information

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IPC IPC(8): G09G3/36G11C19/28
Inventor 周全国祁小敬
Owner BOE TECH GRP CO LTD
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