Pixel driving circuit and organic light-emitting diode display

A pixel drive circuit and light-emitting diode technology, applied in static indicators, instruments, etc., can solve problems such as changes in OLED drive current, affecting display picture quality, poor display of OLED displays, etc., and achieve the effect of eliminating threshold voltage drift

Active Publication Date: 2017-11-24
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to long-time operation, the threshold voltage V of the driving TFT T2 th Drift will occur, so it will cause the driving current of OLED to change, which will cause poor display of OLED display, which will affect the quality of display screen

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
  • Pixel driving circuit and organic light-emitting diode display
  • Pixel driving circuit and organic light-emitting diode display
  • Pixel driving circuit and organic light-emitting diode display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, the embodiments are provided to explain the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to particular intended uses.

[0022] In the drawings, the thicknesses of layers and regions are exaggerated for device clarity. Like reference numerals refer to like components throughout the specification and drawings.

[0023] figure 2 is a structural diagram of an OLED display according to an embodiment of the present invention.

[0024] refer to figure 2 , the organic light emitting diode display according to the embodiment of the present invent...

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 provides a pixel driving circuit and an organic light-emitting diode display with the pixel driving circuit. According to the pixel driving circuit, a pixel driving circuit of a 6T1C pixel structure is adopted to effectively compensate a threshold value voltage of a thin-film transistor for driving an organic light-emitting diode to emit light in a pixel, so that the current which flows to the organic light-emitting diode is irrelevant to the threshold value voltage of the thin-film transistor, and therefore the phenomenon that the picture is poorly displayed caused by shifting of the threshold voltage of the thin-film transistor is eliminated.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescence, and in particular relates to a pixel driving circuit and an organic light emitting diode display. Background technique [0002] In recent years, organic light-emitting diode (Organic Light-Emitting Diode, OLED) display has become a very popular emerging flat-panel display product at home and abroad, because OLED display has self-illumination, wide viewing angle, short response time, high luminous efficiency, wide color gamut , low operating voltage, thin thickness, large-size and flexible displays can be produced, and the manufacturing process is simple, and it also has the potential of low cost. [0003] In an OLED display, a thin film transistor (TFT) is usually used together with a capacitor to store signals to control the brightness grayscale performance of the OLED. In order to achieve the purpose of constant current driving, each pixel needs at least two TFTs and a stor...

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): G09G3/3233
Inventor 陈小龙
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap