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goa circuit and display panel

A circuit and level technology, which is applied in the field of GOA circuits and display panels, can solve problems such as the realization of unfavorable display panel narrow borders, achieve the effect of reducing thin film transistors and clock signals, reducing settings, and improving product competitiveness

Active Publication Date: 2021-12-03
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing GOA circuit, because each level of GOA unit requires too many thin-film transistors and clock signals, and global signals and corresponding thin-film transistors need to be set, it is not conducive to the realization of narrow borders of the display panel.

Method used

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Embodiment Construction

[0019] Embodiments of the present application 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 components or components having the same or similar functions throughout. The terms "first", "second", "third", etc. (if any) in the description and claims of this application and the drawings are used to distinguish similar objects and not necessarily to describe a specific order or priority. It should be understood that the items so described are interchangeable under appropriate circumstances. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion. It will be understood that when an element is referred to as being "coupled" to another element, intervening elements are present. Those of o...

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Abstract

The application discloses a GOA circuit and a display panel. By adding a thin film transistor to the pull-down maintenance module, the pull-down maintenance module is electrically connected to the first node, the second node and the output terminal of the output module, and receives a constant voltage high level, which can pull up the level of the second node, Maintain the low level of the first node and the low level of the output terminal of the output module; and effectively reduce the thin film transistors and clock signals required by the forward and reverse scanning control module, and reduce the settings of global signals and corresponding thin film transistors, which is conducive to narrower display panels Implementation of borders.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a GOA circuit and a display panel. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD for short) has become the mainstream display on the market. Shown in different colors. Gate Driver On Array (GOA for short) technology is to use the existing thin film transistor liquid crystal display array (Array) process to manufacture the gate drive circuit on the array substrate of the liquid crystal display panel to realize the gate line (Gate ) A technology of progressive scanning driving mode. [0003] Please also refer to Figure 1A-Figure 1C ,in, Figure 1A is the circuit diagram of the existing GOA circuit, Figure 1B for Figure 1A The forward scanning driving timing diagram of the shown GOA circuit, Figure 1C for Figure 1A Timing diagram of the reverse scan driving of the shown GOA circuit. [0004] like Figure 1A As shown, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3677
Inventor 何剑李亚锋杨博
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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