Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Drive and control circuit and display device of display panel

A technology for driving control circuits and display panels, applied to static indicators, instruments, etc., can solve problems such as residual charge, influence on display electric field, flicker, etc., and achieve the effects of easy manufacturing, avoiding flicker, and simple structure

Inactive Publication Date: 2014-09-10
SHANGHAI AVIC OPTOELECTRONICS +1
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the display device is turned off, the driving grayscale signal in the data line of the display panel cannot be released quickly, resulting in residual charge
When the computer is turned on next time, the residual charge will affect the normal display electric field, so that the display panel cannot display the correct grayscale brightness, resulting in flickering phenomenon, resulting in poor display

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
  • Drive and control circuit and display device of display panel
  • Drive and control circuit and display device of display panel
  • Drive and control circuit and display device of display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0020] It should be noted that the "electrical connection" described in the embodiments of the present invention means the electrical connection between components, including direct electrical connection and indirect electrical connection.

[0021] figure 1 It is a schematic diagram of the display panel drive control circuit provided by the embodiment of the present invention. The drive control circuit includes a shutdown detection module 19a, a switch module 19b, and a neutralization discharge module 19c, wherein the shu...

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

The invention discloses a drive and control circuit and a display device of a display panel. The drive and control circuit of the display panel comprises a shutdown sensing module, a switch module and a neutralization electric discharge module, wherein the shutdown sensing module senses shutdown status and controls switching status of the switch module, the switch module controls work status of the neutralization electric discharge module, and the neutralization electric discharge module is used to release shutdown residual charges of the display panel. The drive and control circuit of the display panel is simple in structure and convenient to manufacture, can rapidly release the shutdown residual charges of the display panel, and then restrains a flare phenomenon, and furthermore improves display effects.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to the field of drive control circuits of display panels. Background technique [0002] Such as Figure 7 As shown, a commonly used display device includes a display panel 1, the display panel 1 is provided with a plurality of data lines 2, and the data driving chip 3 outputs grayscale signals to the data lines 2 to drive the panel to display images. The power supply process of the entire display device includes that the system control main board 5 outputs the analog driving voltage to the flexible circuit board 4 through the analog driving voltage output line 8, and the analog driving voltage output by the commonly used mobile phone system control main board is 2.8V. After the analog driving voltage is boosted by the capacitor, a positive driving voltage VSP and a negative driving voltage VSN are generated. The positive driving voltage VSP and the negative driving voltage...

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
IPC IPC(8): G09G3/20
Inventor 黄正园王徐鹏叶松王香春李文静丁晓源杨旭程杰向倩影任志勇
Owner SHANGHAI AVIC OPTOELECTRONICS
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com