Check patentability & draft patents in minutes with Patsnap Eureka AI!

A display panel and its manufacturing method

By using an auxiliary cathode layer and a solvent to remove the organic light-emitting layer in an organic electroluminescent display panel, the problem of display uniformity caused by voltage drop is solved and a more uniform display effect is achieved.

Active Publication Date: 2021-06-22
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a display panel and a preparation method thereof, which can solve the problem of poor display uniformity of the existing organic electroluminescent display panel due to voltage drop

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figures, structurally similar elements are denoted by the same reference numerals.

[0039] The present application aims at the problem of poor display uniformity of the existing organic electroluminescent display panel due to voltage drop, and this embodiment can solve this defect.

[0040] Such as figure 1 As shown, it is a flow chart of the manufacturing method of the display panel provided by the embodiment of the present application. and refer to ...

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 application provides a display panel and a manufacturing method thereof. The manufacturing method includes: preparing a pixel definition layer on a substrate formed with a first auxiliary cathode layer and a second auxiliary cathode layer, patterning the pixel definition layer to form pixel openings and corresponding The connection hole of the second auxiliary cathode layer; an organic light-emitting layer is prepared on the entire surface of the pixel definition layer, and a solvent is printed on the organic light-emitting layer in the connection hole, and the organic light-emitting layer in the connection hole is dissolved under the action of the solvent and penetrates into the connection The pixel definition layer around the hole exposes the second auxiliary cathode layer corresponding to the connection hole, so that the cathode layer can be effectively electrically connected to the second auxiliary cathode layer and the first auxiliary cathode layer through the connection hole. The present application can solve the problem of poor display uniformity of the existing organic electroluminescence display panel due to voltage drop.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display panel and a manufacturing method thereof. Background technique [0002] Organic electroluminescent display panels have become the development trend of future display technology due to their excellent characteristics such as high contrast ratio, wide color gamut, fast response speed, and flexibility. [0003] Organic electroluminescent display panels are divided into bottom emission and top emission according to the direction of light emission. Due to the design aperture ratio of bottom emission, it cannot meet the high-resolution development needs of market products. Therefore, it is necessary to develop top emission OLED device technology. Top emission OLED design has requirements High resolution, good optical effect of transparent cathode, etc., but the transparent cathode cannot meet the technical requirements at the same time due to the surface resistance...

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): H01L51/52H01L51/50H01L27/32H01L21/77
CPCH10K59/122H10K50/11H10K59/1201H10K59/80522H10K50/824H10K71/00H10K2102/103
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com