Pixel driving circuit and organic light-emitting display device

A technology for pixel drive circuit and light emission control, which is applied in the field of pixel drive circuit and organic light emitting display device, and can solve problems such as afterimage and hysteresis effect of organic light emitting display device

Active Publication Date: 2019-01-29
WUHAN TIANMA MICRO ELECTRONICS CO LTD
View PDF5 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, organic light-emitting disp

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0056] In order to better understand the technical solutions of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0057] It should be understood that the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0058] 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," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0059] It should be understood that the term "an...

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 display device. The pixel driving circuit comprises a driving transistor, a first light-emitting control transistor, a second light-emitting control transistor, an organic light-emitting element, a first power supply signal terminal, a transmitting signal terminal and a first node, wherein the first node is electrically connected with the drain of the driving transistor, and the first node is electrically connected with the first electrode of the second light-emitting control transistor. The pixel driving circuit alsocomprises a first reset transistor, a first scanning signal terminal and a first reset signal terminal, wherein the gate of the first reset transistor is electrically connected with the first scanning signal terminal; the first electrode of the first reset transistor is electrically connected with the first node; and the second electrode of the first reset transistor is electrically connected with the first reset signal terminal. The pixel driving circuit executes a first initialization stage, current flows through the driving transistor from the source of the driving transistor to the drainof the driving transistor, threshold voltage offset caused by bias stress is eliminated, and the hysteresis effect and the ghost image phenomenon are alleviated.

Description

【Technical field】 [0001] The present invention relates to the technical field of organic light emitting display, in particular to a pixel driving circuit and an organic light emitting display device. 【Background technique】 [0002] In the prior art, organic light emitting display devices have hysteresis effect and afterimage phenomenon. 【Content of invention】 [0003] In order to solve the above technical problems, the present invention provides a pixel driving circuit and an organic light emitting display device. [0004] In one aspect, the present invention provides a pixel driving circuit. [0005] The pixel driving circuit includes a driving transistor, a first light emitting control transistor, a second light emitting control transistor, an organic light emitting element, a first power signal terminal, an emission signal terminal, and a first node; [0006] The first node is electrically connected to the drain of the driving transistor, and the first node is electri...

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): G09G3/3208G09G3/3233G09G3/3266
CPCG09G3/3208G09G3/3233G09G3/3266G09G2320/0233G09G2320/0257
Inventor 刘丽媛张翠翠安平
Owner WUHAN TIANMA MICRO ELECTRONICS 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