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Laminate, and method for producing light-emitting diode provided with wavelength conversion layer

A technology of laminates and phosphors, used in chemical instruments and methods, coatings, layered products, etc., can solve problems such as limited luminous color, achieve uniform film thickness, easy peeling, and prevent damage.

Active Publication Date: 2014-08-27
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The luminescence spectrum of LED depends on the semiconductor material forming the LED chip, so its luminous color is limited

Method used

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  • Laminate, and method for producing light-emitting diode provided with wavelength conversion layer
  • Laminate, and method for producing light-emitting diode provided with wavelength conversion layer
  • Laminate, and method for producing light-emitting diode provided with wavelength conversion layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] Using a polyethylene container with a volume of 300ml, "OE-6630A / B" (manufactured by TORAY-DOW CORNING Co., Ltd., refractive index: 1.53) as a silicone resin and "NYAG-02" ( Manufactured by Intematix: Ce-doped YAG phosphor, specific gravity: 4.8g / cm 3 , D50:7 μm) were mixed at a ratio of 40.0% by mass of OE-6630A / B and 60.0% by mass of NYAG-02.

[0122] Then, stirring and defoaming were performed at 1000 rpm for 20 minutes using a planetary stirring and defoaming device "Mazerustar (registered trademark)" KK-400 (manufactured by Kurabo), to obtain a phosphor sheet preparation liquid. Using a slit coater, the resin solution for sheet production was coated on the polyphenylene sulfide film "TORELINA (registered trademark)" (manufactured by Toray Co., Ltd.), heated and dried at 130°C for 2 hours, A laminate in which a phosphor sheet having an average film thickness of about 100 μm was formed was obtained. In the obtained laminate, the phosphor sheet was uniformly applied...

Embodiment 2～ Embodiment 4

[0129] Silicone microparticles 1 were added to make the amount listed in Table 1, and the amount of each component was adjusted so that the content of the phosphor particles in the phosphor sheet was kept at 60.0% by mass. In the same manner as in Example 1, except that Fabricate phosphor sheets. "SD4580" (silicon adhesive manufactured by Toray Dow Corning Co., Ltd.) was coated on the phosphor sheet, and heated and dried at 100° C. for 15 minutes to obtain an adhesive layer.

[0130] On the adhesive layer, "Cerapeel (registered trademark)" BLK (manufactured by Toray Film Processing Co., Ltd.)" was laminated as a cover film at room temperature.

[0131] Next, in order to test the substrate peelability of the obtained laminated body, transfer lamination was performed on the glass substrate.

[0132]The laminated body was cut into 100 mm x 50 mm, and the cover film was peeled off. Next, the surface where the adhesive layer was peeled off and the adhesive layer was exposed was b...

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PUM

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Abstract

Provided are: a laminate which does not undergo the formation of fisheyes or the unevenness in coating in a step of coating a resin solution for sheet production purposes onto a base of the laminate, and in which the base and a phosphor sheet can be delaminated easily in a delamination step; and a method for producing a light-emitting diode provided with a wavelength conversion layer. The laminate according to the present invention is characterized by comprising: a base which comprises polyphenylenesulfide; and a phosphor sheet which is laminated on the base and contains at least a silicone resin and a phosphor.

Description

technical field [0001] The present invention relates to a laminate as a sheet-shaped material for converting the light emission wavelength of an LED chip, and a method for manufacturing a light emitting diode with a wavelength conversion layer. Background technique [0002] Light Emitting Diode (LED, Light Emitting Diode) is not only used in the backlight of liquid crystal display (LCD) or the headlight of the car, etc. The automotive field, and the market for general lighting is also rapidly expanding. [0003] The emission spectrum of LED depends on the semiconductor material forming the LED chip, so its emission color is limited. Therefore, in order to use LEDs to obtain white light for LCD backlighting or general lighting, it is necessary to arrange phosphors suitable for various types of chips on the LED chip to convert the emission wavelength. Specifically, a method of disposing a yellow phosphor on an LED chip emitting blue light, a method of disposing red and green...

Claims

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Application Information

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IPC IPC(8): B32B27/00B32B27/18C08G77/04C08J5/18C08L83/04C08L83/05C08L83/07H01L33/50C08J7/043C09D7/61
CPCH01L2933/0041C09D5/20C08J2381/04H01L33/501C09D7/1216C08G77/80C08L83/04C08J7/047C08J2483/04C09D7/61C08J7/0427C08J7/043
Inventor 松村宣夫井上武治郎定国广宣石田丰川本一成关口广树吉冈正裕
Owner TORAY IND INC
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