Unlock instant, AI-driven research and patent intelligence for your innovation.

A goa drive circuit

A driving circuit and driving unit technology, applied in static indicators, instruments, etc., can solve problems such as afterimages, residual levels of LCD pixel capacitance, etc., and achieve the effect of avoiding afterimages

Active Publication Date: 2019-12-03
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of abnormal power failure, the liquid crystal screen will have residual voltage in the pixel capacitor, which will cause image sticking
In the prior art, there is no effective mechanism to prevent this phenomenon

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A goa drive circuit
  • A goa drive circuit
  • A goa drive circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A GOA drive circuit, comprising multiple stages of GOA drive units. During power failure, in the nth-stage GOA drive unit, a pull-up control module (101) controls a pull-up output module (102) to stop outputting a clock signal, a pull-down control module (103) controls a pull-down output module (104) to stop outputting a low-level signal, a first global control module (105) outputs a high-level signal, a reset module (106) stops outputting a reset signal, and a second global control module (107) stops outputting a low-level signal. Therefore, the phenomenon that a liquid crystal screen generates a ghost shadow during power failure can be avoided.

Description

technical field [0001] The invention relates to the field of electronic circuits, in particular to a GOA drive circuit. Background technique [0002] Thin film transistor liquid crystal display (Thin film transistor liquid crystal display, TFT-LCD) has become the mainstream display in the market. The basic principle is that the liquid crystal in the display is deflected under the drive of voltage, changing the direction of light propagation so that the display shows different color. The gate driver on array (Gate Driver OnArray, GOA) circuit is a technology that integrates the gate driver circuit on the array substrate of the liquid crystal display panel to realize the progressive scanning of the gate lines. In the case of abnormal power failure, the liquid crystal screen will have residual voltage in the pixel capacitor, which will cause image sticking. In the prior art, there is no effective mechanism to prevent this phenomenon. Contents of the invention [0003] The ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36
Inventor 戴荣磊
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD