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GOA drive circuit and display panel

A driving circuit, low-level technology, applied in the direction of static indicators, instruments, etc., can solve the problem of the influence of the operation of the GOA driving circuit, the inability to maintain the low level of the line scan signal, etc., to achieve the effect of improving stability

Inactive Publication Date: 2019-01-15
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the occurrence of abnormalities in the GOA driving circuit, the GOA driving circuit cannot maintain the low level of the row scanning signal after outputting the row scanning signal of the GOA unit of the current stage, thereby affecting the operation of the GOA driving circuit.

Method used

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  • GOA drive circuit and display panel
  • GOA drive circuit and display panel
  • GOA drive circuit and display panel

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Embodiment Construction

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0041] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042]The following disclosure provides many diff...

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PUM

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Abstract

A GOA drive circuit and a display panel are provided. The GOA drive circuit is composed of cascade of multi-stage GOA units, wherein the GOA unit of each stage is used to drive a row of pixel unit. The current level GOA unit comprises: a pull-up control module, a pull-up module, a cascade module, a pull-down module, a pull-down maintaining module, an abnormality protecting module and a bootstrap capacitor. The row scanning signal and the pull-up control signal of the GOA unit of the current stage can be maintained at a low level when abnormality occurs in the scanning period of the pixel unitother than the current line by adding an abnormality protecting module, so that the stability of the GOA driving circuit can be improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a GOA driving circuit and a display panel. Background technique [0002] GOA (Gate Driver on Array, array substrate row drive) technology is to integrate the TFT (Thin Film Transistor, Thin Film Field Effect Transistor) in the GOA drive circuit on the array substrate, thereby saving the gate drive originally arranged outside the array substrate. In the integrated circuit part, the cost of the product is reduced from two aspects of material cost and process steps. [0003] In the existing GOA driving circuit, after outputting the row scanning signal of the GOA unit of the current stage, it needs to maintain the low level of the row scanning signal for a period of time. However, due to the abnormal occurrence in the GOA driving circuit, the GOA driving circuit cannot maintain the low level of the row scanning signal after outputting the row scanning signal of the curren...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/20G09G2310/0267
Inventor 田新斌徐向阳
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD