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GOA circuit and liquid crystal display device

A liquid crystal display device and circuit technology, which can be applied to static indicators, instruments, etc., can solve problems such as reducing the display effect, and achieve the effect of improving the display effect and eliminating the phenomenon of afterimages.

Inactive Publication Date: 2016-05-04
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the gate driver chip of GOA technology is integrated on the array substrate, it cannot use the XAO function to solve the problem of afterimage after power off, so that the existing liquid crystal display device with GOA technology has afterimage and reduces the display effect.

Method used

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Examples

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Embodiment Construction

[0040] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention. In the figures, structurally similar units are denoted by the same reference numerals.

[0041] Please refer to figure 1 , figure 1 is a schematic structural diagram of the gate drive module of the present invention;

[0042] The GOA circuit of the present invention includes a plurality of gate drive modules, the gate drive modules are used to input scan signals to the scan lines, and the number of the gate drive modules is consistent with the number o...

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Abstract

The invention provides a GOA circuit and a liquid crystal display device. The GOA circuit comprises multiple gate drive modules used for inputting scanning signals into a scanning line. Each gate drive module comprises a GOA unit used for providing initial scanning voltage, and an output control unit connected with the corresponding GOA unit and used for eliminating ghost shadows of the liquid crystal display device, wherein the output control unit comprises a first control branch used for controlling the corresponding gate drive module to output switching scanning voltage related to the initial scanning voltage, and a second control branch used for controlling the corresponding gate drive module to output switching scanning voltage unrelated to the initial scanning voltage. According to the GOA circuit and the liquid crystal display device, the output control units are additionally arranged at an output end of an existing GOA unit, so that the ghost shallow phenomenon is eliminated, and a display effect is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of displays, in particular to a GOA circuit and a liquid crystal display device. 【Background technique】 [0002] With the continuous development of thin film transistor liquid crystal display (TFT-LCD, ThinFilmTransistorLiquidCrystalDisplay), TFT-LCD has become an important display platform in modern IT and video products, and users have higher and higher requirements for it. In order to meet the requirements of ultra-narrow borders and low cost, the technology of integrating a gate driver chip on an array substrate (GOA, GateOnArray) has been developed rapidly. [0003] In the actual driving process, TFT-LCD uses the voltage applied to both ends of the display panel to drive the liquid crystal deflection to achieve the display function. However, due to incomplete discharge during power off, the charges at both ends of the display panel will remain, resulting in image retention when power off and on, that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677G09G2300/0408G09G2320/0257G09G3/36
Inventor 黄笑宇
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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