Display apparatus

A display device and pixel circuit technology, applied to static indicators, instruments, electrical components, etc., to achieve the effect of cost reduction

Active Publication Date: 2010-11-17
JOLED INC
View PDF7 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, proper level control is no longer possible

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
  • Display apparatus
  • Display apparatus
  • Display apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] Hereinafter, preferred embodiments of the present invention will be described in detail in the following order with reference to the accompanying drawings.

[0065] 1. Configuration of Display Device and Pixel Circuit

[0066] 2. Double gate structure

[0067] 3. Pixel circuit operation for threshold correction and mobility correction

[0068] 1. Configuration of Display Device and Pixel Circuit

[0069] figure 1 The configuration of an organic EL display device to which the present invention is applied is shown.

[0070] refer to figure 1 , the organic EL display device shown includes a plurality of pixel circuits 10, which use organic EL elements as their light emitting elements, and are driven to emit light according to an active matrix method.

[0071] Specifically, the organic EL display device includes a pixel array 20 including a large number of pixel circuits 10 arranged in a matrix (ie, in m rows and n columns). It is to be noted that each pixel circuit...

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 display apparatus includes: a pixel array including a plurality of pixel circuits disposed in a matrix and each including a light emitting element, a driving transistor for supplying current in response to a signal value applied between a gate and a source thereof to the light emitting element when a driving voltage is applied between a drain and the source thereof, and a holding capacitor connected between the gate and the source of the driving transistor for holding the input signal value, the driving transistor having a multi-gate structure wherein two or more transistors formed using anoxide semiconductor material are connected in series; and a light emission driving section.

Description

technical field [0001] The present invention relates to a display device having a pixel array including a plurality of pixel circuits arranged in a matrix, and another display device using an organic electroluminescent element (ie, an organic EL element). [0002] Japanese Patent Laid-Open Nos. 2003-255856 and 2003-271095 are known as related art documents of the inventors. Background technique [0003] In an active matrix type display device in which an organic electroluminescence (EL) light-emitting element is used in a pixel, the current flowing through the light-emitting element in each pixel circuit is determined by the active element ( Usually thin film transistor (TFT)) control. Specifically, since the organic EL element is a current light emitting element, the gradation of light emission is obtained by controlling the amount of current flowing through the EL element. [0004] Figure 9A An example of a related art pixel circuit using an organic EL element is shown ...

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): G09G3/30
CPCG09G2310/0251G09G2300/0866G09G3/3233G09G2320/043H01L27/3262G09G2320/045G09G2300/0819G09G2300/0842H10K59/1213
Inventor 山本哲郎内野胜秀佐川裕志
Owner JOLED INC
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