Title:
WAVELENGTH CONVERSION MEMBER, BACKLIGHT UNIT, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/208754
Kind Code:
A1
Abstract:
This wavelength conversion member is provided with a wavelength conversion layer containing a phosphorous and a light diffusion material, and satisfies at least one of (1) and (2) below. (1) The diffuse transmittance is less than or equal to 50% and the wavelength conversion layer thickness is less than or equal to 100 μm. (2) The content ratio of the light diffusion material is greater than or equal to 2.0 mass% of the entire wavelength conversion layer.
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Inventors:
KATSUTA YOSHITAKA (JP)
NAKAMURA TOMOYUKI (JP)
OIKAWA FUTOSHI (JP)
SATO MAYUMI (JP)
SAKAMOTO KATSUYOSHI (JP)
YOSHIDA YUMA (JP)
OTSUKI DAISUKE (JP)
KIRIGAYA KUNIHIRO (JP)
NAKAMURA TOMOYUKI (JP)
OIKAWA FUTOSHI (JP)
SATO MAYUMI (JP)
SAKAMOTO KATSUYOSHI (JP)
YOSHIDA YUMA (JP)
OTSUKI DAISUKE (JP)
KIRIGAYA KUNIHIRO (JP)
Application Number:
PCT/JP2019/015688
Publication Date:
October 15, 2020
Filing Date:
April 10, 2019
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
International Classes:
G02B5/20; F21V5/00; F21V5/10; F21V9/30; G02F1/13357; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2005034582A1 | 2005-04-14 |
Foreign References:
| KR20180077935A | 2018-07-09 | |||
| KR100507844B1 | 2005-08-17 | |||
| JP2012185492A | 2012-09-27 | |||
| KR20150090458A | 2015-08-06 | |||
| JP2013197325A | 2013-09-30 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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