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

Polyimide, preparation method of polyimide film and flexible display panel

A technology of polyimide film and polyimide, which is applied in semiconductor/solid-state device manufacturing, photovoltaic power generation, electrical components, etc., can solve the problems of increased material brittleness, risk of fragmentation, loose accumulation of molecular chains, etc., to achieve Effects of improving mechanical properties and reducing the risk of fragmentation

Pending Publication Date: 2020-07-10
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reduced rigid chain segments and loose molecular chain accumulation of the improved polyimide lead to a decrease in the mechanical properties of the material, especially after the array layer is prepared, the brittleness of the material increases and the risk of fragmentation is more likely to occur

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
  • Polyimide, preparation method of polyimide film and flexible display panel
  • Polyimide, preparation method of polyimide film and flexible display panel
  • Polyimide, preparation method of polyimide film and flexible display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner” and “outer” are based on the orientation shown in the drawings Or the positional relationship is only for the convenience of de...

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 discloses polyimide, a preparation method of a polyimide film and a flexible display panel, the polyimide is formed by copolymerization of an aromatic diamine monomer, a polyamino aromatic monomer and an aromatic dicarboxylic anhydride monomer, and the polyamino aromatic monomer comprises at least three amino groups. A small amount of polyamino aromatic monomer is added; in the polyimide forming process, two amino groups in the polyamino aromatic monomer are formed in a main chain of polyimide, and the remaining amino groups are used as side chain groups and can be in dehydrationcondensation bond connection with unreacted carboxyl groups, so that polyimide forms a cross-linked structure, and the mechanical property of polyimide is improved.

Description

Technical field [0001] This application relates to the field of display technology, and in particular to a method for preparing polyimide and polyimide film, and a flexible display panel. Background technique [0002] In recent years, as various folding screen products are put on the market, flexible display has gradually become a research hotspot. For flexible displays, one of the most important key points is the polymer substrate material that can replace the traditional glass substrate. Compared with traditional glass substrates, polymer substrates have the advantages of being lighter, thinner, and having a smaller curvature. Among many polymer materials, yellow polyimide has a glass transition temperature of more than 400° C., and has excellent mechanical properties and dimensional stability. Therefore, it is a favorable candidate for flexible displays, especially top-emitting OLED panels. [0003] For OLED top-emission or partial flexible liquid crystal display technology, i...

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): C08G73/10C08J5/18H01L51/00C08L79/08H10K99/00
CPCC08G73/1067C08G73/1071C08G73/1064C08G73/1039C08G73/1085C08J5/18C08J2379/08H10K77/111Y02E10/549
Inventor 张莉
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH 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