Unlock instant, AI-driven research and patent intelligence for your innovation.

Low refractive index film and centrifuge container for producing the same

A low-refractive-index film and centrifugal container technology, which is applied in the field of centrifugal containers, can solve problems such as unsatisfactory low-refractive-index films, insufficient adhesion of low-refractive-index films, and low-refractive-index requirements.

Active Publication Date: 2021-06-22
苏州盛达飞智能科技股份有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Taking HPC-OCA thermal phase change optical adhesive film as an example, it forms a low-refractive index film through PTFE (polytetrafluoroethylene) and optical grade thermal phase change polyethylene through PVD copolymerization method, and its curing temperature is above 200 ° C. Good adhesion, but in use, we found that the adhesion of the low refractive index film is still insufficient in some cases, and the low refractive index film cannot meet the lower refractive index requirements

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
  • Low refractive index film and centrifuge container for producing the same
  • Low refractive index film and centrifuge container for producing the same
  • Low refractive index film and centrifuge container for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A low refractive index film, the main raw materials include: 15 parts of silica sol, 20 parts of polytetrafluoroethylene suspension (concentrated), 10 parts of diluent, appropriate amount of pH regulator; also includes polytetrafluoroethylene film as the bottom film ; pH regulator is preferably volatile substances, such as ammonia and the like.

[0054] The silica sol contains spherical colloidal silica particles and elongated amorphous colloidal silica particles, wherein the content ratio of spherical colloidal silica particles and elongated amorphous colloidal silica particles is 1:1;

[0055] The average particle diameter D1 of the spherical colloidal silica particles measured by the dynamic light scattering method is 50-100 nm;

[0056] The ratio of the particle diameter D2 measured by the dynamic light scattering method of the elongated amorphous colloidal silica particles to the particle diameter D3 measured by the nitrogen adsorption method is greater than 5, and...

Embodiment 2

[0070] When the film B is used as a low-refractive-index adhesive layer between two objects, the film B is pasted on the surface of an object, the temperature is raised to above 327°C, another object is buckled on the film B, and after a period of heat preservation, it is quickly cool down.

[0071] Due to the high adhesion on both sides of the low-refractive index film, it can be used as a low-refractive index bonding layer. It can replace OCA optical glue. When sintering to form a film, stick the film B on the glass cover, raise the temperature to 340°C, buckle the substrate on the film B (attached to the glass cover), keep warm and hot press for 60s under vacuum conditions, and then cool rapidly; such as the substrate If it is difficult to withstand high temperature, after the temperature rises to above 327°C, it can be kept under vacuum for tens of seconds, and then quickly cooled to about 200°C, and the substrate and glass cover are bonded together, heat-preserved, hot-p...

Embodiment 3

[0073] Such as Figure 1-3 Shown, a kind of centrifuge container used for preparing film B comprises centrifuge container body 1 and cover 2, and described centrifuge container body is the arc-shaped plate-shaped container that tool inner chamber 5, curvature and the centrifuge tank adapt, centrifuge One side of the outer wall of the container is provided with upward liquid inlet and outlet nozzles 3 and air inlet and outlet nozzles 4, the inlet and outlet air nozzles are connected to the inner cavity, and the liquid inlet and outlet nozzles are connected to the inner cavity through the extension tube 6 arranged on the inner wall of the centrifuge container; The liquid inlet and outlet nozzles facilitate the liquid inlet and pumping operations, and the air inlet and outlet nozzles are used to balance the internal and external air pressure. The arc-shaped design makes the centrifuge container close to the inner wall of the container tank during centrifugation, reducing and avoi...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

A low refractive index film, the main raw materials include: silica sol, polytetrafluoroethylene suspension, diluent, pH regulator, and polytetrafluoroethylene film as the bottom film; the special centrifuge container can be better A uniform and complete sedimentation layer is obtained, and the sedimentation layer is produced by segmented centrifugation. When centrifuging at low speed, relatively large polytetrafluoroethylene particles are first aggregated and precipitated. When centrifuging at high speed, relatively small silica particles More precipitates on the surface layer, and the low-refractive index film is obtained by melting and sintering; the present invention can be widely used in low-refractive layer coating on the surface of electronic products, etc., low-refractive index layer and adhesive layer between ultra-thin panels, with Good application prospects.

Description

technical field [0001] The invention belongs to the technical field of low-refractive-index films, and in particular relates to a low-refractive-index film and a centrifugal container used for producing the film. Background technique [0002] The current display screen tends to be thinner and thinner, such as the popular mural TV concept, which puts forward extremely high requirements on the thickness of the display panel; ordinary display panels need multi-layer composites, in order to obtain good display effects, in Under the cover, multiple auxiliary layers such as light guide plates and reflectors (polarizers) need to be added to make the overall light output of the screen more uniform and transparent. [0003] Our company has conducted many experiments, using OCA optical adhesives with different refractive indices between the glass cover and the substrate (excluding light guide plates, etc.), lighting from the four sides or three sides of the synthesized screen to monit...

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): C09J7/24C09J7/30C09J127/18C09J11/04G02B1/04G09F9/00B29C41/04B29C41/34B29C67/04B04B7/02B29L7/00
CPCB04B7/02B29C41/003B29C41/04B29C41/34B29C67/04B29L2007/002C08K2201/011C09J11/04C09J127/18C09J2427/006C09J7/245C09J7/30G02B1/04G09F9/00C08K3/36C08K7/18
Inventor 林志武高凌文杨滨
Owner 苏州盛达飞智能科技股份有限公司
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