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

Modified polyphenyl thioether composition and LED (light-emitting diode) display screen back cover prepared therefrom

A technology of LED display and polyphenylene sulfide, which is applied in the direction of chassis/cabinet/drawer parts, etc., can solve the problem of not guaranteeing the heat dissipation effect, etc., and achieves long service life, good thermal conductivity, and high thermal conductivity. Effect

Inactive Publication Date: 2013-03-13
SHENZHEN AOTO ELECTRONICS
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the technical problems to be solved by the present invention is to provide a modified polyphenylene sulfide composition to solve the problem that the current LED display back cover cannot guarantee the heat dissipation effect while having a better EMC effect

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
  • Modified polyphenyl thioether composition and LED (light-emitting diode) display screen back cover prepared therefrom
  • Modified polyphenyl thioether composition and LED (light-emitting diode) display screen back cover prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A modified polyphenylene sulfide composition provided in this specific embodiment includes: polyphenylene sulfide (PPS), carbon fibers and processing aids, wherein the weight percentage content of carbon fibers is 75%, and the weight percentage content of processing aids 5%. And the processing aid contains 4% of compatibilizer, 0.6% of lubricant and 0.4% of antioxidant. This is the optimal ratio determined through many experiments. In fact, the weight percentage content of carbon fiber is 70-80%, and the weight percentage content of processing aid is 2-10%, which can achieve good results; when the weight percentage content of carbon fiber is 72-78%, the weight percentage content of processing aid When the percentage content is 2-8%, better effect can be achieved.

[0020] A modified polyphenylene sulfide composition provided in this specific embodiment is prepared by adding conductive carbon fibers to high-performance engineering plastic substrate polyphenylene sulfid...

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 a modified polyphenyl thioether composition and an LED (light-emitting diode) display screen back cover prepared therefrom through an injection molding process. The modified polyphenyl thioether composition comprises polyphenyl thioether, processing assistants and carbon fibers, wherein the weight percent of the carbon fibers is 70-80%. According to the LED display screen back cover prepared from the modified polyphenyl thioether composition disclosed by the technical scheme of the invention, the electric-conducting carbon fibers are added in the high-performance engineering plastic base material polyphenyl thioether, thus preparing the novel composite electric-conducting and heat-conducting engineering plastic material having high electric conduction and heat conduction coefficients and enough mechanical strength. The LED display screen back cover prepared from the electric-conducting and heat-conducting engineering plastic material through the existing traditional injection molding process can meet the requirements of an LED display screen back cover product for heat conduction, electric conduction, EMC (electro magnetic compatibility) prevention and the like, thereby solving the problem that the existing heat-conducting plastic material can not meet the requirements for heat conduction, electric conduction and EMC simultaneously, and achieving a better heat conduction effect. Thus, the temperature of an LED display screen case can be effectively controlled, and the normal service life of a display screen can be prolonged.

Description

technical field [0001] The invention relates to the technical field of polymer materials and LED display technology, in particular to a modified polyphenylene sulfide composition and an LED display back cover prepared therefrom. Background technique [0002] The application range of LED display is more and more extensive, and it can be used in various occasions such as indoor and outdoor advertising, sports, transportation, performances, exhibitions, leasing, and gatherings. Due to the large number of high-density LED lights inside the LED display, usually tens of thousands, the internal temperature of the LED display is relatively high after working for a long time. Especially for outdoor LED displays, the temperature will get higher and higher in the hot summer. The temperature of the LED display screen changes with the working time. The longer the working time, the more heat it generates. If the heat cannot be dissipated in time, the temperature of the LED display screen...

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): C08L81/02C08K7/06C08K3/04H05K5/02
Inventor 叶强吴涵渠吴振志朱凌刘联现
Owner SHENZHEN AOTO ELECTRONICS
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