Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

El display device and producing method thereof

An electroluminescent display and device technology, applied in the direction of electroluminescent light sources, semiconductor/solid-state device manufacturing, electric solid-state devices, etc., can solve the complex manufacturing process, the degradation of device brightness and color purity, and the unfavorable light-emitting function of the organic light-emitting layer Impact and other issues

Active Publication Date: 2010-05-05
SAMSUNG DISPLAY CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Functional groups can change the chemical structure of the organic light-emitting layer, thus adversely affecting the light-emitting function of the organic light-emitting layer, which can deteriorate the brightness and color purity of the device
[0017] Although an inorganic layer may be used as the pixel defining layer 12 in order to solve the above problems, the inorganic layer may complicate the manufacturing process.

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
  • El display device and producing method thereof
  • El display device and producing method thereof
  • El display device and producing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

[0037] Figure 3A to Figure 3C is a sectional view for explaining an EL display device and a method of manufacturing it according to an exemplary embodiment of the present invention.

[0038] refer to Figure 3A , providing a substrate 100 . A buffer layer 110 may be formed on the substrate 100 to prevent impurities from flowing out of the upper portion of the substrate 100 . The buffer layer 110 may be, for example, a silicon oxide layer, a silicon nitride layer, or a stack of silicon oxide and silicon nitride layers.

[0039] After forming the buffer layer 110, a polysilicon layer 125 may be formed on the buffer layer 110 by crystallizing amorphous silicon.

[0040] A gate insulating layer 120 may then be formed on the substrate 100 having the polysilicon layer 125 , and a gate electrode 135 may...

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

An electroluminescent (EL) display device and a method of fabricating the same are provided. The device includes a substrate; a plurality of pixel electrodes disposed on the substrate; a pixel defining layer disposed on the pixel electrodes and having an opening part exposing a predetermined part of each of the pixel electrodes; and at least one barrier layer comprised in and / or on the pixel defining layer. In this device, the pixel defining layer includes at least one barrier layer in order to reduce the amount of outgas from the pixel defining layer and prevent degradation of an emission portion due to the outgas. Also, the pixel defining layer is formed to a sufficiently small thickness to facilitate a subsequent process using a laser induced thermal imaging (LITI) process.

Description

technical field [0001] The present invention relates to an electroluminescent (EL) display device and a method of manufacturing it, and more particularly to an EL display device and a method of manufacturing it comprising defining a pixel-defining layer having at least one barrier layer to reduce the The degassing amount of the layer and prevent the aging of the light-emitting part due to degassing. Background technique [0002] When the demand for quick and accurate information increases, light and thin portable display devices that can quickly process a large amount of information are rapidly developed. Conventional cathode ray tubes (CRTs) are heavy, take up a lot of space and consume a lot of power, while liquid crystal displays (LCDs) are complex to manufacture, have narrow viewing angles, and have technical limitations in contrast ratio and increased size. [0003] On the other hand, organic EL display devices are self-luminous devices in which electrons and holes rec...

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): H01L27/32H01L51/50H01L51/56H05B33/00H05B33/04H05B33/10
CPCH10K59/122H10K59/124H10K50/844H10K71/00
Inventor 郑仓龙姜泰旭金昌树曹洧诚
Owner SAMSUNG DISPLAY 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
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