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

Organic light emitting material, organic light emitting display, and display device

A technology for electroluminescent materials and electroluminescent devices, which is applied in the directions of luminescent materials, electro-solid devices, electrical components, etc., can solve the problems of high driving voltage and low luminous efficiency, and achieve the effect of reducing driving voltage and improving luminous efficiency.

Inactive Publication Date: 2018-09-28
王美妮
View PDF1 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides an organic electroluminescent material, an organic electroluminescent device containing the compound and a display device with the organic electroluminescent device, which are used to solve the problems of high driving voltage and The problem of low luminous efficiency

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 material, organic light emitting display, and display device
  • Organic light emitting material, organic light emitting display, and display device
  • Organic light emitting material, organic light emitting display, and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] The compound of the present invention is used as the host material in the red phosphorescent OLED organic electroluminescent device, and as a comparative organic electroluminescent device, the red light host material is selected from CBP.

[0084] The structure of the organic electroluminescent device is: ITO / NPB (20nm) / red light host material (30nm): Ir(piq)3[5%] / TPBI(10nm) / Alq3(15nm) / LiF(0.5nm) / Al (150nm).

[0085] The preparation process of the organic electroluminescent device is as follows: the glass plate coated with the ITO transparent conductive layer is ultrasonically treated in a commercial cleaning agent, rinsed in deionized water, ultrasonically degreased in acetone: ethanol mixed solvent, and baked in a clean environment. Baked until completely dehydrated, cleaned with UV light and ozone, and bombarded with a beam of low-energy cations;

[0086] Place the above-mentioned glass substrate with the anode in a vacuum chamber, and evacuate to 1×10 -5 ~9×10 -3...

Embodiment 2

[0096] The compound of the present invention is used as the host material in the green phosphorescent OLED organic electroluminescent device, and as a comparative organic electroluminescent device, the green light host material is selected from CBP.

[0097] The structure of the organic electroluminescent device is: ITO / NPB (20nm) / green light host material (30nm): Ir(ppy)3[7%] / TPBI(10nm) / Alq3(15nm) / LiF(0.5nm) / Al (150nm).

[0098] The preparation process of the organic electroluminescent device is as follows: the glass plate coated with the ITO transparent conductive layer is ultrasonically treated in a commercial cleaning agent, rinsed in deionized water, ultrasonically degreased in acetone: ethanol mixed solvent, and baked in a clean environment. Baked until completely dehydrated, cleaned with UV light and ozone, and bombarded with a beam of low-energy cations;

[0099] Place the above-mentioned glass substrate with the anode in a vacuum chamber, and evacuate to 1×10 -5 ~9×...

Embodiment 3

[0109] The compound of the present invention is used as the host material in the blue phosphorescent OLED organic electroluminescent device, and as a comparative organic electroluminescent device, the blue host material is selected from CBP.

[0110] The structure of the organic electroluminescent device is: ITO / NPB (20nm) / blue light host material (30nm): FIrpic[4%] / TPBI(10nm) / Alq3(15nm) / LiF(0.5nm) / Al(150nm).

[0111] The preparation process of the organic electroluminescent device is as follows: the glass plate coated with the ITO transparent conductive layer is ultrasonically treated in a commercial cleaning agent, rinsed in deionized water, ultrasonically degreased in acetone: ethanol mixed solvent, and baked in a clean environment. Baked until completely dehydrated, cleaned with UV light and ozone, and bombarded with a beam of low-energy cations;

[0112] Place the above-mentioned glass substrate with the anode in a vacuum chamber, and evacuate to 1×10 -5 ~9×10 -3 Pa, 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

The invention belongs to the technical field of display, and especially relates to an organic light emitting material, an organic light emitting display, and a display device. The organic light emitting material is represented by formula I. The organic light emitting material is adopted in a hole transport layer of the organic light emitting display, or a main body material of an organic light emitting layer, is capable of increasing the light emitting efficiency of the organic light emitting display, and reducing the driving voltage of the organic light emitting display.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic electroluminescence material, an organic electroluminescence device and a display device. Background technique [0002] Organic Light Emitting Display (OLED) is a new type of flat-panel display. Compared with Liquid Crystal Display (LCD), it has the advantages of thinness, lightness, wide viewing angle, active luminescence, and continuously adjustable luminous color. , low cost, fast response speed, low energy consumption, low driving voltage, wide operating temperature range, simple production process, high luminous efficiency and flexible display, etc., have attracted great attention from the industrial and scientific circles. [0003] The development of organic electroluminescent devices has promoted the research on organic electroluminescent materials. Compared with inorganic light-emitting materials, organic electroluminescent materials have the following advant...

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): C07D401/04C07D401/14C07D487/04C09K11/06H01L51/54
CPCC09K11/06C07D401/04C07D401/14C07D487/04C09K2211/1044C09K2211/1029H10K85/622H10K85/615H10K85/631H10K85/633H10K85/6572
Inventor 不公告发明人
Owner 王美妮