Title:
WAVELENGTH CONVERSION MEMBER, BACKLIGHT UNIT, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/152737
Kind Code:
A1
Abstract:
A wavelength conversion member having a wavelength conversion layer that contains a phosphor, the wavelenght conversion member being such that, when measured under a load of 0.05 N and at a temperature rise rate of 10°C/minute by a thermomechanical analysis device, the thermal expansion coefficient at the glass transition temperature or less is 30 ppm/°C or greater, the thermal expansion coefficient at the glass transition temperature or greater is 0 ppm/°C or less, or both of these are satisfied.
Inventors:
YOSHIDA YUMA (JP)
NAKAMURA TOMOYUKI (JP)
SATO MAYUMI (JP)
OIKAWA FUTOSHI (JP)
SAKAMOTO KATSUYOSHI (JP)
NAKAMURA TOMOYUKI (JP)
SATO MAYUMI (JP)
OIKAWA FUTOSHI (JP)
SAKAMOTO KATSUYOSHI (JP)
Application Number:
PCT/JP2020/003220
Publication Date:
August 05, 2021
Filing Date:
January 29, 2020
Export Citation:
Assignee:
SHOWA DENKO MATERIALS CO LTD (JP)
International Classes:
F21S2/00; F21V9/30; G02B5/20; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2019066064A1 | 2019-04-04 | |||
| WO2019064588A1 | 2019-04-04 | |||
| WO2019077752A1 | 2019-04-25 | |||
| WO2016052625A1 | 2016-04-07 |
Foreign References:
| JP2018106097A | 2018-07-05 | |||
| JP2017076482A | 2017-04-20 | |||
| JP2017100350A | 2017-06-08 | |||
| US20160161066A1 | 2016-06-09 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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