Unlock instant, AI-driven research and patent intelligence for your innovation.

Organic light emitting diode and method of fabricating the same

A technology of light-emitting diodes and diodes, which is applied in the manufacture/processing of organic light-emitting devices, organic light-emitting devices, organic semiconductor devices, etc., and can solve problems such as reduced electron and hole recombination probability, accelerated degradation, and reduced light emission efficiency

Inactive Publication Date: 2012-05-16
LG DISPLAY CO LTD
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since electrons are more difficult to inject than holes, the probability of recombination of electrons and holes in the light emitting material layer 20 decreases, thereby reducing light emission efficiency.
In addition, due to the high driving voltage, the luminescent material layer 20, the hole transport layer 18 and the electron transport layer 22 made of organic materials will be subject to greater stress, thereby accelerating deterioration, which will result in a shortened lifetime of the OLED 10. The problem

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
  • Organic light emitting diode and method of fabricating the same
  • Organic light emitting diode and method of fabricating the same
  • Organic light emitting diode and method of fabricating the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Reference will now be made in detail to describe the embodiments of the invention illustrated in the accompanying drawings.

[0026] image 3 is a schematic cross-sectional view showing an OLED in one embodiment of the present invention, Figure 4 is the energy band diagram of the OLED in the above embodiment of the present invention.

[0027] see image 3 , OLED 110 in the embodiment of the present invention comprises, substrate 112, first electrode 114, hole transport layer (HTL) 118, luminescent material layer (EML) 120, electron transport layer 122, buffer layer 124 and second electrode 126 . OLED 110 may be of the bottom emission type, wherein the light radiation emitted from the emissive material layer 120 is transmitted through the first electrode 114; or may be of the top emission type, wherein the light radiation emitted from the emissive material layer 120 is transmitted through the second electrode 126; or is of the double-sided emission type, in which th...

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 organic light emitting diode includes a first electrode on a substrate; a hole transporting layer on the first electrode; a light emitting material layer on the hole transporting layer; an electron transporting layer on the light emitting material layer and doped with a metal; a second electrode on the electron transporting layer; and a buffer layer between the electron transporting layer and the second electrode and using an organic material of a triphenylene skeleton including substituted or nonsubstituted heteroatom, or a substituted or nonsubstituted Pyrazino quinoxaline derivative compound.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2010-0104129 filed in Korea on Oct. 25, 2010, which is hereby incorporated by reference for all purposes as if fully set forth herein. technical field [0002] The present invention relates to an organic light emitting diode, more specifically, to an organic light emitting diode and a manufacturing method thereof. Background technique [0003] Until recently, display devices typically used cathode ray tubes (CRTs). Nowadays, many attempts and studies are being made to develop various types of flat panel displays such as liquid crystal display (LCD) devices, plasma display panels (PDP), field emission displays, and organic light emitting diodes (OLEDs), etc., to replace CRTs. Among these flat panel displays, OLEDs have many advantages such as lower power supply, thinner sides, wider viewing angles, lighter weight, faster response time and can be fabricated at low temperatures. [0004] An OLED incl...

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): H01L51/52H01L51/54H01L51/56
CPCH01L51/0072H01L51/0054H01L51/5262H01L51/5076H01L51/5092H01L51/5253H01L2251/552H10K85/622H10K85/6572H10K50/165H10K50/171H10K50/85H10K2101/30H10K50/14H10K50/844
Inventor 成昌济金禾景申政均甘润锡
Owner LG DISPLAY CO LTD