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

Halation material, preparing method, electronic light guide equipment

A light additive and molecular weight technology, applied in optics, optical components, instruments, etc., can solve the problems of light brightness attenuation, high light transmittance, small light transmission range, etc., to improve haze and increase light transmission range Effect

Active Publication Date: 2017-03-22
HISENSE VISUAL TECH CO LTD
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, due to the principle that light propagates along a straight line in the same medium, conventional high-transparency materials have a very small area of ​​light transmission range, which can meet the requirements of point-like light transmission, but cannot achieve the decorative requirements of surface luminescence. Specifically, In other words, the material itself has high light transmittance and poor haze.
[0004] In order to solve this problem, toner is often added to the transparent PC material to reduce the light transmittance of the material and increase the haze of the material. However, since the toner is basically opaque, when the light is transmitted to the toner, it can only be reflected. from the material, such as figure 2 As shown, after adding toner, the area of ​​the light transmission area does not change much compared to that without adding toner. However, due to the loss of a large amount of light intensity in the reflection process, the brightness of the light emitted by the material attenuates significantly, which cannot reach the product guide. light decoration 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
  • Halation material, preparing method, electronic light guide equipment
  • Halation material, preparing method, electronic light guide equipment
  • Halation material, preparing method, electronic light guide equipment

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of halo material described in the present embodiment, the steps are:

[0025] 1) Weigh the raw materials in proportion, dry the PC resin at 75°C for 3-4 hours; mix the optical aid, compatibilizer and PC resin evenly in a high-speed mixer, and the stirring speed is 3000-4000r / min. High-speed stirring and diffusion, the light additive can be evenly dispersed in the PC substrate, so as to ensure a more uniform light dispersion.

[0026] 2) The mixed material is extruded and granulated by a screw extruder to obtain a light diffusing material. The screw aspect ratio is 37-45. The temperature in zone one: 175-185°C, the temperature in zone two: 185-195°C, the temperature in zone three: 205-215°C, the temperature in zone four: 215-225°C, the temperature in zone five: 205-215°C, the temperature in zone six: 195-205°C, the rotational speed of the screw is 320r / min.

[0027] The electronic light guide device prepared by using the above-mentioned halo mat...

Embodiment 1-3

[0029] Prepare the halo material with the formula ratio in Table 1. The preparation method is to dry the PC resin at 75°C for 3 hours; mix the optical aid, compatibilizer and PC resin evenly in a high-speed mixer, and the stirring speed is 3500r / min. The mixed material is extruded and granulated by a screw extruder to obtain a light diffusing material. The length-to-diameter ratio of the screw is 40, the temperature of the first zone: 175-185°C, the temperature of the second zone: 185-195°C, the temperature of the third zone: 205-215°C, the temperature of the fourth zone: 215-225°C, the temperature of the fifth zone: 205- 215°C, six zone temperature: 195-205°C, screw speed 320r / min.

[0030] The particle size of the polymethyltriethoxysilane is 5 μm, and the molecular weight is 12000. The light transmittance, haze and appearance of the halo material are tested and observed, and the results are shown in Table 1.

[0031] Light transmittance refers to the percentage of the lu...

Embodiment 4-6

[0035] With the formulation ratio in Table 2, the halo material is prepared, the preparation method is the same as in Example 1, wherein the polyphenyltriethoxysilane has a particle diameter of 8 μm, a molecular weight of 12000, and the light transmittance of the halo material , haze and appearance were tested and observed, and the results are shown in Table 2.

[0036] The formula ratio of table 2 embodiment 4-6 and corresponding performance test result

[0037]

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a halation material, a preparing method, electronic light guide equipment. The halation material comprises, by weight, 90-95 parts of PC resin, 2-7 parts of optical auxiliary and 1-5 parts of compatilizer, and the optical auxiliary is polymethyltriethoxysilane and / or polyphenyl triethoxysilane. The halation material can uniformly vignette light, improve haze, prevent other inside components or lamplight from emitting out of the halation material and ensure production appearance.

Description

technical field [0001] The invention belongs to the technical field of electronic equipment, and in particular relates to a halo material and a preparation method, and the application of the halo material to electronic light guide devices. Background technique [0002] The earlier demand for light guide in electronic equipment is to pass through point light sources, which can play a role of prompting such as standby, and have high functionality. However, with the development of electronic products towards high-quality products, the demand for light guides has shifted from simple functionality to decoration, and then there has been a change in demand from spot light to surface light. [0003] Because different materials have different absorption (or attenuation) effects on light, transparent materials have the smallest absorption of visible light, so the light transmittance is the highest, and the light transmittance of different transparent materials varies greatly. Compari...

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): C08L69/00C08L83/04C08L35/06G02B5/02
CPCC08L69/00C08L2205/025C08L2205/03C08L2205/035G02B5/0236C08L83/04C08L35/06
Inventor 李洋洋周洪亮
Owner HISENSE VISUAL 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