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

Brightening light diffusion material and preparation method thereof

A technology of diffusing material and light diffusing agent, applied in the field of material chemistry, can solve the problems of poor light diffusing effect, decreased brightness of emitted light, and decreased utilization rate, etc., and achieves the effect of improving light diffusing effect and improving light transmittance.

Inactive Publication Date: 2012-02-29
SHENZHEN HALCYON NEW MATERIALS
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The light diffusion effect and light transmittance of the diffuser and lampshade are closely related to the amount of light diffusing agent added to the plastic substrate. If the amount of light diffusing agent added is small, the light transmission effect will be better, but the light diffusing effect will be lower. Relatively poor, if a large amount of light diffusing agent is added, although the light diffusing effect is better, but the light transmittance is relatively weak, so in order to balance the light diffusing effect and light transmittance, usually the amount of light diffusing agent added Control within a certain range, so that the light transmittance in the plastic added with a light diffusing agent can only be maintained at about 85%, which not only reduces the utilization rate of light, but also reduces the brightness of the emitted light

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A brightening light-diffusing material, the specific steps of preparing the brightening light-diffusing material are as follows:

[0030] Weigh 0.1 part of fluorescent material-aluminate doped with rare earth metal and 0.5 part of light diffusing agent-barium sulfate, mix and stir these two substances, and set aside;

[0031] Weigh 999.4 parts of light-transmitting material-glass powder, add the mixture of the above two substances into the glass powder, stir evenly, and put it into the furnace to melt into a liquid, and stir while melting, so that the rare earth metal doped The aluminate, barium sulfate and glass are mixed evenly, and finally cooled and formed.

[0032] The glass made has light-diffusing properties, and at the same time, its light transmittance is also strong, and the light transmittance reaches 84%. The brightness-enhancing light-diffusing glass contains a fluorescent material with a mass percentage of 0.1‰ and a light-diffusing agent with a mass perc...

Embodiment 2

[0034] A brightening light-diffusing material, the specific steps of preparing the brightening light-diffusing material are as follows:

[0035] Weigh 0.05 parts of fluorescent whitening agent-oxadiazole and 0.2 parts of light diffusing agent-acrylic resin powder, mix these two substances and stir evenly, and set aside;

[0036] Weigh 999.75 parts of the light-transmitting material-polycarbonate particles, add the mixture of oxadiazole and acrylic resin to the polycarbonate particles and stir evenly, then put the mixture of these three substances into the extruder, adjust the extruder Extrude and granulate at an exit temperature of 250° C. to obtain a brightness-enhancing light-diffusing material.

[0037] The prepared brightening light diffusion engineering plastic contains 0.05‰ fluorescent whitening agent and 0.2‰ light diffusing agent, and the light diffusing agent is distributed in the engineering plastic in the form of transparent spheres, and the particle size range of ...

Embodiment 3

[0039] A brightening light-diffusing material, the specific steps of preparing the brightening light-diffusing material are as follows:

[0040] Weigh 50 parts of fluorescent whitening agent-coumarin derivatives and 50 parts of light diffusing agent-siloxane resin, mix and stir these two substances, and set aside;

[0041] Weigh 900 parts of the light-transmitting material-polymethyl methacrylate particles, add the mixture of coumarin derivatives and siloxane resin to the polymethyl methacrylate particles and stir evenly, and mix the three substances The mixture was put into an extruder, and the extrusion temperature was adjusted to 280° C. to extrude and granulate to obtain a brightness-enhancing light-diffusing material.

[0042] The obtained brightening light diffusion engineering plastic contains 5% fluorescent whitening agent and 5% light diffusing agent, and the light diffusing agent is distributed in the engineering plastic in the form of transparent spheres, and the pa...

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 which belongs to the technical field of the material chemistry relates to a brightening light diffusion material and a preparation method thereof. The brightening light diffusion material is characterized in that the brightening light diffusion material comprises the following components, by weight, 0.005-1% of a photoluminescent material, 0.02-5% of a light diffusant, and the balance transparent material. Compared with a case that only the light diffusant is added to a base material which treats the transparent material as a main component, the photoluminescent material and the light diffusant are added to the base material which treats the transparent material as a main component in the invention, so the light transmittance of the transparent material is improved and the light diffusion effect is improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of material chemistry, and relates to a brightening light diffusion material and a preparation method thereof. 【Background technique】 [0002] The backlight module is one of the key components of the LCD panel. Since the liquid crystal itself does not emit light, the function of the backlight module is to supply sufficient brightness and evenly distributed light source so that it can display images normally. The backlight module is mainly composed of light source, lampshade, reflector, light guide plate, diffusion sheet, brightness enhancement film and frame and other components. The function of the diffusion sheet is to provide a uniform surface light source for the liquid crystal display. The traditional method is Adding inorganic additives, such as silicon dioxide and barium sulfate, to PC or PMMA resin diffusers, adding these inorganic nanoparticles, the light will undergo countless light refraction th...

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): C08L69/00C08L33/12B29B9/06G02B5/02
Inventor 欧阳星赖华林胡尚陈军
Owner SHENZHEN HALCYON NEW MATERIALS
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