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

An organic light emitting device and display panel

A technology of organic light-emitting devices and light-emitting layers, which is applied in the manufacture of semiconductor devices, electric solid-state devices, and semiconductor/solid-state devices, etc., can solve the problems of low lifespan of organic light-emitting devices, reduce the increase of non-radiative luminescence, increase the lifespan, and slow down the attenuation. Effect

Active Publication Date: 2022-04-08
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of display technology and the application of organic light-emitting devices in mobile phones, vehicles and TV displays, people have higher and higher requirements for the performance of organic light-emitting devices. Lifespan has become an urgent problem in the industry

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
  • An organic light emitting device and display panel
  • An organic light emitting device and display panel
  • An organic light emitting device and display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0029] As mentioned in the background art, the lifespan of the existing organic light-emitting devices is relatively low. After research, the inventors found that the reason for this problem is that the electrons of the organic light-emitting device are injected from the cathode, and the holes are injected from the anode, respectively, through the electron transport layer. And the hole transport layer enters the light-emitting layer, and a large amount of holes are transported to the light-emitting layer through 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 embodiment of the invention discloses an organic light emitting device and a display panel. The organic light-emitting device includes an anode layer, at least one sub-hole transport layer, a light-emitting layer, and a cathode layer that are sequentially stacked on the anode layer, and the at least one sub-hole transport layer includes at least one doped hole transport layer, and the doped The hetero hole transport layer includes at least two hole transport materials with different hole mobilities. The technical solution of the embodiment of the present invention enables the hole mobility of the doped hole transport layer to meet the requirement of the hole transport speed, so that the organic light-emitting device has a higher luminous efficiency, and at the same time, it can reduce the number of holes in the light-emitting layer adjacent to the anode. A large number of side interfaces are gathered to improve the lifespan of the organic light-emitting device.

Description

technical field [0001] Embodiments of the present invention relate to the display field, and in particular to an organic light emitting device and a display panel. Background technique [0002] With the development of display technology and the application of organic light-emitting devices in mobile phones, vehicles and TV displays, people have higher and higher requirements for the performance of organic light-emitting devices. However, the life of existing organic light-emitting devices is relatively low. Lifespan has become an urgent problem to be solved in the industry. Contents of the invention [0003] Embodiments of the present invention provide an organic light emitting device and a display panel, so as to ensure that the organic light emitting device has high luminous efficiency and at the same time increase the lifespan of the organic light emitting device. [0004] In order to achieve the above technical problems, the present invention adopts the following tech...

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): H01L51/50
CPCH10K50/11H10K2101/40H10K50/15
Inventor 李贵芳李飞霞黄智
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD