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

Driving circuit, display panel and display module

A technology for driving circuits and display panels, applied in the fields of driving circuits, display panels and display modules, can solve the problems of poor brightness uniformity of light-emitting elements and changes in light-emitting brightness of light-emitting elements, so as to simplify the circuit structure, simplify the control process, and improve the display. The effect of brightness uniformity

Active Publication Date: 2020-09-22
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gate voltage of the drive transistor is easily affected by other factors in the drive circuit, and a slight fluctuation in the gate voltage will cause a change in the drive current formed by the drive transistor, thereby causing changes in the luminance of the light-emitting element, resulting in The brightness uniformity of the light-emitting element is poor

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
  • Driving circuit, display panel and display module
  • Driving circuit, display panel and display module
  • Driving circuit, display panel and display module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0039] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0040] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0041] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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 driving circuit, a display panel and a display module, and relates to the technical field of display, which comprises a first power supply signal line, a second power supplysignal line, a plurality of driving sub-circuits and a light-emitting element, wherein one driving sub-circuit is electrically connected with at least one light-emitting element, the driving sub-circuit comprises a first node and a first node connected with one end of the light-emitting element, and the other end of the light-emitting element is connected with a first power signal line; each driving sub-circuit further comprises a switch module, the first end of the switch module is connected with a first node, and the second end of the switch module is connected with a second power signal line; the control end of the switch module is connected with a first control signal end; and different drive sub-circuits correspond to different first control signal ends, signals sent by the first control signal ends to the switch module comprise pulse signals, under different display gray scales, the duty ratios of the pulse signals are different, and the duty ratios of the pulse signals are in direct proportion to the display gray scales of the light-emitting element so as to facilitate improvement of display brightness uniformity.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a driving circuit, a display panel and a display module. Background technique [0002] From the era of CRT (Cathode Ray Tube, cathode ray tube) to the era of liquid crystal, and now to the era of OLED (Organic Light-Emitting Diode, organic light-emitting diode), the display industry has experienced decades of development and has become ever-changing. The display industry has been closely related to our lives. From traditional mobile phones, tablets, TVs and PCs to the current smart wearable devices and VR, display technology is inseparable. [0003] The light emission of the display pixels in the display panel is driven by the pixel driving circuit, and at the same time, the light emission of the backlight module in the liquid crystal display panel also needs to be driven by the backlight driving circuit. In the existing pixel drive circuit or backlight drive c...

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 Applications(China)
IPC IPC(8): G09G3/34G09G3/36G09G3/20
CPCG09G3/3406G09G3/3607G09G3/20G09G2320/0233
Inventor 东强王丽花马从华孙晓平
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com