Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Organic light emitting device and flexible display device

A technology for organic light-emitting devices and light-emitting units, which is applied in the manufacturing of electric solid-state devices, semiconductor devices, and semiconductor/solid-state devices, etc., can solve problems such as affecting the normal use of flexible display devices, peeling of cathode electrode layers and thin-film encapsulation layers, etc., to avoid The effect of peeling, increasing adhesion, increasing contact area

Inactive Publication Date: 2019-01-15
GUANGZHOU GOVISIONOX TECH CO LTD
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the differences in physical ductility, elasticity and internal stress characteristics between the cathode electrode layer and the thin film encapsulation layer, when the flexible display device is bent, it is easy to peel off the cathode electrode layer and the thin film encapsulation layer, which affects the performance of the flexible display device. Normal use

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 device and flexible display device
  • Organic light emitting device and flexible display device
  • Organic light emitting device and flexible display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 Schematic diagram of the structure of the organic light-emitting device provided in the first embodiment; figure 2 for figure 1 Schematic diagram of the structure after removing the thin film encapsulation layer; image 3 for figure 2 Schematic diagram of the structure after removing the first electrode.

[0040] Please refer to Figure 1-Figure 3 , the organic light emitting device 100 provided in this embodiment includes a stacked light emitting unit, a thin film encapsulation layer 110 and a pixel defining layer 131 . The light emitting unit includes: a first electrode 120 and a pixel layer 132 ; the pixel defining layer 131 separates the pixel layer 132 , and the first electrode 120 is disposed on the upper surface of the pixel defining layer 131 and the pixel layer 132 facing the thin film encapsulation layer 110 . Wherein, the upper surface of the first electrode 120 facing the thin film encapsulation layer 110 is provided with a plurality of protr...

Embodiment 2

[0078] This embodiment provides a flexible display device, which can be OLED display devices and any products with display functions such as TVs, digital cameras, mobile phones, tablet computers, smart watches, e-books, and navigators that include OLED display devices. or parts.

[0079] The flexible display device includes: the organic light emitting device 100 in the first embodiment. Wherein, the structure, function and implementation of the organic light-emitting device 100 may be the same as those in Embodiment 1, and will not be repeated here.

[0080] The flexible display device provided in this embodiment includes an organic light-emitting device 100 , by setting a plurality of protrusions 120 a in the area corresponding to the first electrode 120 of the organic light-emitting device 100 and the pixel defining layer 131 , and setting The recessed part 110a fitted with the protruding part 120a increases the contact area between the first electrode 120 and the thin film...

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 provides an organic light-emitting device and a flexible display device, which relate to the technical field of display and are used for solving the technical problem that a flexible display device cannot be normally used due to the separation of a cathode electrode layer and a thin film encapsulation layer. Wherein the organic light emitting device comprises a light emitting unit and a thin film encapsulation layer arranged in a stack, the light emitting unit includes a first electrode and a pixel layer, the organic light emitting device further includes a pixel defining layer that isolates the pixel layer, the pixel defining layer and the pixel layer are provided with the first electrode facing the thin film encapsulation layer, The first electrode faces the surface of thethin film encapsulation layer and a region corresponding to the pixel defining layer is provided with a plurality of projections, and at least a portion of the thin film encapsulation layer faces thelower surface of the first electrode and is provided with a recess fitted with the projections. The first electrode faces the surface of the thin film encapsulation layer and the region correspondingto the pixel defining layer.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic light-emitting device and a flexible display device. Background technique [0002] Organic Light Emitting Diode (OLED) is a kind of current-mode light-emitting device, because of its many characteristics such as self-illumination, fast response, wide viewing angle, and can be fabricated on flexible substrates, it is increasingly being used. It is applied in high-performance display fields such as flexible display screens. [0003] In the prior art, a flexible display device using OLED generally includes a flexible substrate, and an anode electrode layer, a pixel definition layer and a cathode electrode layer sequentially stacked on the flexible substrate, wherein the pixel definition layer defines a pixel region, and the pixel region An organic light-emitting layer is provided. After the flexible display device is electrified, driven by the electric field formed by ...

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): H01L27/32H01L51/52
CPCH10K59/122H10K50/844
Inventor 陈磊
Owner GUANGZHOU GOVISIONOX TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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