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

display device

A technology for display devices and display components, applied in static indicators, instruments, etc., can solve the problems of drive transistor characteristic deviation, gray scale performance influence, gray scale unevenness, etc., and achieve the effect of reducing characteristic deviation and good gray scale performance

Active Publication Date: 2022-07-26
SHARP KK
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the variation in the characteristics of the drive transistor, the gradation expression for each pixel is affected, and there is a problem that gradation unevenness occurs

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 device
  • display device
  • display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037]

[0038] Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In addition, in this specification and drawings, the same code|symbol is attached|subjected to the component which has substantially the same functional structure, and a repeated description is abbreviate|omitted. figure 1 It is a circuit diagram showing one pixel of the organic EL display device in the present embodiment. like figure 1 As shown, the organic EL display device includes a driving transistor M D1 , diode-connected transistor M D2 and organic EL elements OLED.

[0039] drive transistor M D1 It is a transistor which controls the value of the current flowing by applying a voltage to the gate, and can be constituted by, for example, a MOSFET (metal-oxide-semiconductor field-effect transitor, metal-oxide-semiconductor field-effect-transistor). drive transistor M D1 The source of the diode-connected transistor M is c...

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 device comprising: a display element (OLED) that emits light by current flow; a driving transistor (M D1 ), which controls the current flowing in the display element (OLED); and a plurality of diode-connected transistors (M D2 , M D3 ), connected in series to the drive transistor (M D1 ) on the source side of the drive transistor (M D1 ) is connected to the back gate of the drive transistor (M D1 ) or multiple diode-connected transistors (M D2 , M D3 ) of the source of any of the .

Description

technical field [0001] The present invention relates to a display device, in particular to an active matrix display device. Background technique [0002] Among electro-optical elements constituting pixels arranged in a matrix, current-driven organic EL elements are well known. In recent years, the display device on which the display device is mounted can be increased in size and thickness, and the development of a display device including organic EL (Electro Luminescence) in the pixels has been actively carried out while paying attention to the vividness of the displayed image. . [0003] In particular, there are many display devices in which a current-driven electro-optical element is provided on each pixel together with a switching element such as a thin film transistor (TFT: Thin Film Transistor) controlled separately, and the electro-optical element is controlled for each pixel. Active matrix type display device. By using an active-matrix display device, it is possibl...

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 Patents(China)
IPC IPC(8): G09G3/3233G09G3/20
CPCG09G3/3233G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/027G09G2310/061
Inventor 西山隆之
Owner SHARP KK
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