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

A kind of oled display device

A technology for display devices and electron transport layers, applied in semiconductor devices, electrical components, circuits, etc., can solve problems such as oxidation, achieve the effects of improving performance, increasing carrier injection capacity, and enhancing the activity of the cathode layer

Active Publication Date: 2019-11-22
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although OLEDs are currently prepared under high vacuum, the metal vapor in the atomic state is still easily absorbed by the weak O during the evaporation process. 2 oxidation

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
  • A kind of oled display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0028] The invention discloses an OLED display device, comprising: a substrate, an electron transport layer disposed on the substrate, a cathode layer disposed on the electron transport layer, and a cathode activation layer disposed between the electron transport layer and the cathode layer , and the cathode active layer is in at least partial contact with the surface of the cathode layer to reduce the metal oxide in the cathode to metal.

[0029] In a preferred embodiment of the present invention, the material of the above-mentioned cathode active layer is a material with an OSC effect, so as to absorb and store oxygen while reducing the metal oxide; The oxidized cathode layer metal is reduced during the plating process, and the oxygen at the cathode layer interface is adsorbed and stored durin...

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 present invention relates to the field of display technology, in particular to an OLED display device. By adding a cathode active layer between the cathode layer and the electron transport layer, the oxidized metal in the evaporation process is reduced, so that the cathode can be removed during the use of the OLED. Oxygen at the layer interface is adsorbed and stored, which greatly enhances the activity of the cathode layer, increases the carrier injection capability, and improves the interface of the cathode layer, thereby greatly improving the performance of the OLED display device.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to an OLED display device. Background technique [0002] In recent years, organic light emitting diode (Organic Light Emitting Diode, OLED) devices belonging to self-luminous devices have been widely used as flat panel display devices because of their excellent performance. Due to the material properties of OLED devices, it is easy to deteriorate after being attacked by moisture and oxygen, and it is easy to cause degradation or failure of its characteristics. Therefore, it is necessary to strictly prevent oxygen and moisture from the surrounding environment from entering the device and contacting sensitive organic substances and electrodes. [0003] Although OLEDs are currently prepared under high vacuum, the metal vapor in the atomic state is still easily absorbed by the weak O during the evaporation process. 2 oxidation. During the working process of the OLED, the metal / organi...

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): H01L27/32H01L51/52
CPCH10K59/00H10K50/80H10K50/82
Inventor 王钊
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD