Title:
COLOR CONVERSION SHEET AND LIGHT SOURCE UNIT INCLUDING SAME, DISPLAY, AND LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/070877
Kind Code:
A1
Abstract:
This color conversion sheet converts incident light into light with a wavelength different from that of the incident light. The color conversion sheet includes at least: a color conversion layer (A); a color conversion layer (B); a resin layer; and a base material. The color conversion layer (A) contains a light-emitting material (a) that exhibits light emission having a peak wavelength observed in a region between at least 500 nm to less than 580 nm. The color conversion layer (B) contains a light-emitting material (b) that exhibits light emission having a peak wavelength in a region between 580 nm to 750 nm. The haze value of the color conversion sheet is 20% to 90%. When the refractive index of the color conversion layer (A) is nA1, the refractive index of the color conversion layer (B) is nA2, and the refractive index of the resin layer is nB, nA1>nB and nA2>nB are satisfied. Provided is a color conversion sheet used for a display, a lighting device, and the like, said color conversion sheet having high in-plane uniformity and durability.
Inventors:
KAWAHARA KANA (JP)
KANZAKI TATSUYA (JP)
KANZAKI TATSUYA (JP)
Application Number:
PCT/JP2021/033673
Publication Date:
April 07, 2022
Filing Date:
September 14, 2021
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
F21S2/00; F21V9/32; G02B5/02; G02B5/20; G02F1/13357; F21Y115/10
Domestic Patent References:
| WO2019039142A1 | 2019-02-28 |
Foreign References:
| JP2019219512A | 2019-12-26 | |||
| JP2018124413A | 2018-08-09 | |||
| JP2017129743A | 2017-07-27 | |||
| JP2014082191A | 2014-05-08 | |||
| JP2018195583A | 2018-12-06 | |||
| JP2011241160A | 2011-12-01 | |||
| JPH08509471A | 1996-10-08 | |||
| JP2000208262A | 2000-07-28 |
Other References:
J. ORG. CHEM., vol. 64, no. 21, 1999, pages 7813 - 7819
ANGEW. CHEM., INT. ED. ENGL., vol. 36, 1997, pages 1333 - 1335
ADV.MATER, vol. 28, 2016, pages 2777 - 2781
ANGEW. CHEM., INT. ED. ENGL., vol. 36, 1997, pages 1333 - 1335
ADV.MATER, vol. 28, 2016, pages 2777 - 2781
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