A kind of ultraviolet absorber for ultraviolet excitation LED device

A technology of LED devices and ultraviolet absorbers, which is applied in the direction of semiconductor devices, electrical components, nanotechnology for materials and surface science, etc., can solve the problems of insufficient absorption of ultraviolet light sources, harm to the human body, light leakage of ultraviolet light sources, etc., and achieve good results Ultraviolet absorption performance, good effect, wide absorption spectrum effect

Active Publication Date: 2019-02-01
苏州轻光材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As a result, the ultraviolet light source is not fully absorbed by the phosphor, or the ultraviolet light source leaks light after the phosphor is used and attenuated.
Therefore, if measures are not taken against the ultraviolet light source, the leaked ultraviolet light may be harmful to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An ultraviolet absorber for ultraviolet excitation LED devices, comprising the following components by weight:

[0025] Mineral Pressed Powder 9 parts

[0026] Film forming agent 5 parts

[0027] Nano aluminum hydroxide 12 parts

[0028] Nano zinc oxide 3 parts

[0029] Nano titanium dioxide 5.7 parts

[0030] Anthranilate 2.5 parts

[0031] Benzophenone derivative 1 part

[0032] 4 parts of methoxycinnamate;

[0033] The compressed mineral powder includes feldspar, fluorite, calcite, and ultrafine silicon dioxide, wherein the particle size of the ultrafine silicon dioxide is 0.8-5 μm; the film-forming agent includes starch dextrin, paraffin, polymer , the polymer is a mixture of polyvinyl acetate and polyvinyl alcohol; the aminobenzoate is a derivative of ethyl p-aminobenzoate, and the derivative is connected with a hydroxyl group and an alkoxy group on the benzene ring; the The benzophenone derivatives are benzophenones with two hydroxyl groups on the benzene r...

Embodiment 2

[0036] An ultraviolet absorber for ultraviolet excitation LED devices, comprising the following components by weight:

[0037] Mineral pressed powder 7.5 parts

[0038] Film forming agent 8 parts

[0039] Nano aluminum hydroxide 15 parts

[0040] Nano zinc oxide 4 parts

[0041] Nano titanium dioxide 7 parts

[0042] Anthranilate 2 parts

[0043] Benzophenone derivative 1.5 parts

[0044] 2 parts of methoxycinnamate;

[0045] The mineral compressed powder includes feldspar, fluorite, calcite, talc, and ultrafine silicon dioxide, wherein the particle size of the ultrafine silicon dioxide is 0.8-5 μm; the film-forming agent includes starch dextrin, paraffin, Polymer, described polymer is the mixture of polyvinyl alcohol, water-based polyurethane emulsion; Described aminobenzoate is isopropyl alcohol p-aminobenzoic acid ester derivative, and this derivative is connected with alkoxy group, Hydroxyalkyl; the benzophenone derivative is a benzophenone with a hydroxyl group and...

Embodiment 3

[0048] An ultraviolet absorber for ultraviolet excitation LED devices, comprising the following components by weight:

[0049] Mineral Pressed Powder 6 parts

[0050] Film forming agent 6 parts

[0051] Nano aluminum hydroxide 18 parts

[0052] Nano Zinc Oxide 5 parts

[0053] Nano titanium dioxide 4.5 parts

[0054] Anthranilate 3.5 parts

[0055] Benzophenone derivatives 3 parts

[0056] 3 parts of methoxycinnamate;

[0057] The mineral compressed powder includes mica, fluorite, talc, and ultrafine silicon dioxide, wherein the particle size of the ultrafine silicon dioxide is 0.8-5 μm; the film-forming agent includes starch dextrin, paraffin, polymer , the polymer is a mixture of polyvinyl acetate water-based polyurethane emulsion; the aminobenzoic acid esters are p-aminobenzoic acid n-butyl alcohol ester derivatives, which have hydroxyl groups on the benzene ring; the diphenyl The ketone derivative is benzophenone with two alkoxy groups on the benzene ring; the metho...

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PUM

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Abstract

The invention discloses an ultraviolet absorber for an ultraviolet excitation LED device. The ultraviolet absorber comprises, by weight, 6 to 9 parts of mineral pressed powder, 5 to 8 parts of film-forming agent, 12 to 18 parts of nano aluminum hydroxide, 3 to 5 parts of nano zinc oxide, 4.5 to 7 parts of nano titanium dioxide, 2 to 3.5 parts of aminobenzoate, 1 to 3 parts of benzophenone derivatives, and 2 to 4 parts of methoxycinnamate. The formula of the ultraviolet absorber can be produced through a pressing process, the material is easy to obtain, the ultraviolet absorber is simple and efficient, and can be used for ultraviolet excitation light sources with wide ranges.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to an ultraviolet absorber for ultraviolet excitation LED devices. Background technique [0002] At present, the LED technology on the market has matured, and the white light LEDs that have been commercialized are based on the GaN matrix LED chip emitting 450-470 nm blue light and the phosphor powder coated on the surface to excite yellow light emission by blue light, mainly cerium-doped aluminum Yttrium Oxide phosphor. This commercial phosphor also has some disadvantages, mainly poor color saturation and instability of color temperature. [0003] The ultraviolet excitation white light LED light source is realized by exciting the red, green and blue phosphors of the three primary colors by LED light to produce various colors of fluorescence, and then mixing these fluorescence and LED light. The white light LED has high color rendering index, high luminous effect and adjustable color ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L33/58B82Y30/00
CPCB82Y30/00H01L33/58
Inventor 马必鹉董安钢张家奇夏浩孚陈延兵
Owner 苏州轻光材料科技有限公司
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