Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

OLED device and preparation method

A technology of devices and organic light-emitting elements, which is applied in the field of OLED displays, can solve problems such as performance waste, achieve the effects of reducing production costs, simplifying device structure design, and reducing sub-pixel spacing

Pending Publication Date: 2021-10-29
FUJIAN HUAJIACAI CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such, green light is limited to blue light in practical applications, wasting its performance

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
  • OLED device and preparation method
  • OLED device and preparation method
  • OLED device and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] see figure 1 , In an embodiment, an OLED device includes a substrate Substrate and an anode Anode, a hole injection layer HIL, a hole transport layer HTL, a light emitting layer EL, an electron transport layer ETL, an electron injection layer EIL, and a cathode are sequentially arranged on the substrate Substrate Cathode and sealing film layer Capping, the light-emitting layer EL includes a red light region EL-R, a blue light region EL-B and a green light region EL-G, and the red light region EL-R is provided with a red light organic light-emitting element; The blue light region EL-B of the light-emitting layer is provided with a blue light organic light-emitting element, and the green light region EL-G is excited and formed by the material of the hole transport layer.

[0021] see figure 2 , the preparation method of the above-mentioned OLED device, the substrate is subjected to cleaning, drying, and UV treatment before evaporation, and then the substrate is transfer...

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 relates to an OLED device and a preparation method, the OLED device comprises a substrate, and an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, a cathode and a sealing film layer which are arranged on the substrate in sequence, the light-emitting layer comprises a red light area, a blue light area and a green light area, and the red light area is provided with a red light organic light-emitting element; the blue light area of the light-emitting layer is provided with a blue light organic light-emitting element, and the green light area is excited and formed by a hole transport layer material, and by adopting the technical scheme, the structural design of the device is simplified, and the preparation and production cost of the OLED is reduced.

Description

technical field [0001] The invention relates to the field of OLED display technology, in particular to an OLED device and a preparation method. Background technique [0002] With the continuous development of display technology, OLED (Organic Light Emitting Diode, Organic Light Emitting Diode) has been used in smart electronic devices, vehicle displays and various wearable devices due to its characteristics of self-luminescence, thin thickness, and wide viewing angle. And with the increasing development of smart terminal technology, people's demand for OLED display screens continues to increase. The preparation of the light-emitting layer, one of the core technologies of the OLED display screen, is generally formed by depositing the organic light-emitting material on the corresponding pixel position on the TFT substrate through a high-definition metal mask (FMM) by using evaporation film forming technology. Organic light-emitting components. At this stage, due to the diffe...

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
IPC IPC(8): H01L51/50H01L51/56H01L27/32
CPCH10K59/352H10K59/353H10K71/164H10K50/13H10K50/11H10K2101/10H10K50/15
Inventor 孙玉俊吴聪原
Owner FUJIAN HUAJIACAI CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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