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

Laminating film for display and display backlight module

A display and lamination film technology, applied in the field of optical films, can solve the problems of unsatisfactory stiffness, high production requirements, complex design, etc., and achieve the effect of convenient, easy and accurate subsequent production, improved product qualification rate, and simple design.

Pending Publication Date: 2020-08-25
CCS (SHANGHAI) FUNCTIONAL FILMS IND CO LTD
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related art, the laminating film for liquid crystal display and the backlight module of liquid crystal display, the invention patent application with the patent number 201911417839.4 (hereinafter referred to as D1), includes the atomized layer film, base film, first prism layer film, The second prism layer film and the third prism layer film can still ensure the effects of no interference, no glare, and visual effects that meet the standard when the brightness reaches the effect of two light-enhancing films and two diffusion films. etc. all meet the requirements, but it uses three prism layers, which are easy to cause interference between prism layers, so it needs special design to avoid interference, resulting in more complicated design, higher production requirements, and higher cost. Applicable to LCD panels with a size below 55 inches, and for special cases such as LCD panels above 55 inches or without brackets, the stiffness cannot meet the 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
  • Laminating film for display and display backlight module
  • Laminating film for display and display backlight module
  • Laminating film for display and display backlight module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 , figure 2As shown, the laminating film for display includes the atomized layer film 1, the base film 3 and the prism layer film 2 arranged in sequence from top to bottom, and the atomized layer film 1, the base film 3 and the prism layer film 2 are bonded sequentially The glue 4 fits each other.

[0038] The atomized layer film 1 includes a polarizing film 11, and the upper surface of the polarizing film 11 has an atomized coating layer 12 with a haze of 80%. Laminating glue 4 is coated on the lower surface of the atomized layer film 1 for surface-to-surface bonding with the base film 3 .

[0039] The base film 3 is a 50 μm optical grade chemically treated PET film. The base film 3 is first pre-coated, and the upper and lower surfaces of the base film 3 are coated with a coating liquid composed of water-based polyurethane and a curing agent with a mass ratio of 15:1, and then the laminating glue 4 is coated.

[0040] Such as figure 2 , image 3...

Embodiment 2

[0045] Such as figure 1 , figure 2 As shown, the laminating film for display includes the atomized layer film 1, the base film 3 and the prism layer film 2 arranged in sequence from top to bottom, and the atomized layer film 1, the base film 3 and the prism layer film 2 are bonded sequentially The glue 4 fits each other.

[0046] The atomized layer film 1 includes a polarizing film 11, and the upper surface of the polarizing film 11 has an atomized coating layer 12 with a haze of 86%. Laminating glue 4 is coated on the lower surface of the atomized layer film 1 for surface-to-surface bonding with the base film 3 .

[0047] The base film 3 is a 70 μm optical grade chemically treated PET film. The base film 3 is first pre-coated, and the upper and lower surfaces of the base film 3 are coated with a coating liquid composed of water-based polyurethane and a curing agent with a mass ratio of 20:1, and then the laminating glue 4 is coated.

[0048] Such as figure 2 , image ...

Embodiment 3

[0053] Such as figure 1 , figure 2 As shown, the laminating film for display includes the atomized layer film 1, the base film 3 and the prism layer film 2 arranged in sequence from top to bottom, and the atomized layer film 1, the base film 3 and the prism layer film 2 are bonded sequentially The glue 4 fits each other.

[0054] The atomized layer film 1 includes a polarizing film 11, and the upper surface of the polarizing film 11 has an atomized coating layer 12 with a haze of 90%. Laminating glue 4 is coated on the lower surface of the atomized layer film 1 for surface-to-surface bonding with the base film 3 .

[0055] The base film 3 is a 100 μm optical grade chemically treated PET film. The base film 3 is first pre-coated, and the upper and lower surfaces of the base film 3 are coated with a coating solution composed of water-based polyurethane and a curing agent with a mass ratio of 17:1, and then the laminating glue 4 is coated.

[0056] Such as figure 2 , ima...

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
thicknessaaaaaaaaaa
transmittivityaaaaaaaaaa
transmittivityaaaaaaaaaa
Login to View More

Abstract

The invention relates to an optical film, and discloses a laminating film for a display. The laminated film comprises an atomization layer film, a base film and a prism layer film which are sequentially arranged from top to bottom. The prism layer film comprises a prism structure layer, the prism structure layer comprises a plurality of continuously-arranged prisms, and the prisms extend in the direction forming an included angle [theta]2 of 6-8 degrees with the reference direction with the production conveying direction of the laminated film production line as the reference direction. The invention further relates to a display backlight module. According to the prism layer film designed by the invention, the problem that lines on the liquid crystal display panel interfere with the laminating film can be solved. The interference-free effect is achieved, the applicability is wider, the interference problem of film layers such as the atomization layer film does not need to be solved by designing a rotating angle, the design complexity is reduced, the design is simpler, the subsequent production is easier and more accurate, and the product percent of pass is increased.

Description

technical field [0001] The invention relates to an optical film, in particular to a bonding film for a display and a display backlight module. Background technique [0002] With the development of liquid crystal display technology, the requirements for the size of the display, the backlight module and the stiffness of the laminating film are increasing, the product is also thinning, and the assembly requirements are becoming more and more simplified. Combination films such as +D (diffusion film combined with brightness-enhancing composite film + diffusion plate), POP+D (light-enhancing composite film + diffusion plate), among which the brightness of DOP composite film is low, which is not suitable for many high-resolution LCDs. The use and application of the display screen is limited. One of the technical solutions of the POP composite film is to use two mutually perpendicular high-transparency prisms to stick together. Although the brightness is high, it is easy to cause pr...

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): G02B5/04G02B5/30G02B1/10G02F1/13357
CPCG02B1/10G02B5/045G02B5/3033G02F1/1336
Inventor 曹建沈渊何泽周鹏吴晶晶杜元生徐宇
Owner CCS (SHANGHAI) FUNCTIONAL FILMS IND 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