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

Anti-scratching optical reflecting film and manufacturing method of the same

An optical reflection, anti-scratch technology, applied in optics, optical components, diffusing components, etc., can solve the problems of easily scratched light guide plate, folded or scratched reflective film, etc., to reduce scratches, uniform brightness, Significant scratch resistance

Active Publication Date: 2013-04-24
NINGBO EXCITON TECH
View PDF6 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the defect that the existing reflective film is easy to scratch the light guide plate or the reflective film itself is prone to creases or scratches, the present invention provides an anti-scratch optical reflective film and its preparation method

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
  • Anti-scratching optical reflecting film and manufacturing method of the same
  • Anti-scratching optical reflecting film and manufacturing method of the same
  • Anti-scratching optical reflecting film and manufacturing method of the same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The preparation method of the anti-scratch optical reflection film provided by the invention comprises the following steps:

[0039] (1) Prepare the coating solution: add adhesive, particles, UV absorber and solvent in sequence, and stir for 1-3 hours;

[0040] (2) Apply the coating solution obtained in step (1) evenly on the substrate, and bake at 80-120°C for 1-30 minutes.

[0041] Prepare anti-scratch optical reflective film according to above-mentioned method, the test method of each performance of gained reflective film is briefly described as follows:

[0042] Degree of scratches: Put the reflective film into the backlight module, and then put it into the vibration test box for a 2-hour vibration test. After the vibration test is completed, take out the light guide plate and the reflective film, and observe the scratches on the light guide plate and the reflective film. Scratches on the contact side of the light guide plate.

[0043] Vibration experiment: Vibrat...

Embodiment 1

[0046] According to the method above, the anti-scratch optical reflection film is prepared. The substrate used is white PET with a thickness of 150 μm. The white PET is provided with a protective coating. The adhesive used for the coating is a polyurethane adhesive, and the adhesive is 100 parts by weight. , Particles are 35 parts by weight. The particles include silica particles accounting for 20% of the total weight of the particles, with a particle size of 5 μm; nylon particles accounting for 80% of the total weight of the particles, with a particle size of 10 μm. The thickness of the adhesive layer after drying was 8 μm.

Embodiment 2

[0048] Prepare anti-scratch optical reflective film according to the above method, the base material used is white PET, thickness is 188 μ m, is provided with protective coating on white PET, the adhesive used for coating is acrylate adhesive, and adhesive is 100 weight Parts, particles are 25 parts by weight. Particles include barium sulfate particles accounting for 10% of the total weight of the particles, and the particle size range is 3 μm; titanium dioxide particles accounting for 10% of the total particle weight, the particle size range is 1 μm; nylon particles accounting for 80% of the total particle weight, the particle size range The range is 10 μm. The thickness of the adhesive layer after drying is 6-8 μm.

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 sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of optical thin films, in particular to an anti-scratching optical reflecting film and a manufacturing method of the same. The anti-scratching optical reflecting film and the manufacturing method of the same solve the problems that an existing reflecting film enables a light guide plate to be scratched easily or the reflecting film is creased or scratched easily. The reflecting film comprises a base material, wherein particles are arranged on the base material and are bonded on the base material through an adhesive layer, the particles comprise flexible particles and non-flexible particles, the flexible particles make up 40-100% of total weight of the particles, and the non-flexible particles make up 0-60% of the total weight of the particles. According to the anti-scratching optical reflecting film, scratching of the light guide plate is reduced obviously, and one side, in contact with the light guide plate, of the reflecting film is not creased or scratched easily. Furthermore, the anti-scratching optical reflecting film is simple in manufacturing method and technology, and easy to operate.

Description

technical field [0001] The invention relates to the technical field of optical thin films, in particular to an anti-scratch optical reflection film and a preparation method thereof. Background technique [0002] As one of the important components of liquid crystal display, the backlight module includes a series of components such as diffusion film, prism sheet, light guide plate, reflective film and lamp tube. Since the liquid crystal itself does not emit light, the backlight module plays a role in supplying sufficient brightness and a uniformly distributed planar light source. The reflective film here plays a role in reflecting the scattered light back to the light guide plate, and the reflection efficiency of the reflective film directly affects the utilization efficiency and brightness of the light source. [0003] In the backlight module, the reflective film is placed under the light guide plate. The material of the light guide plate is generally PMMA or PC sheet. The s...

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): G02B5/08G02B5/02G02B1/10
Inventor 张彦崔钧马子盈
Owner NINGBO EXCITON TECH
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