Title:
OPTICAL FILM AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/191311
Kind Code:
A1
Abstract:
This optical film comprises: a transparent substrate; a colored layer composed of one or more layers and containing a first color material, which has a maximum absorption wavelength of 470 nm to 530 nm and a half width of the absorption spectrum of 15 nm to 45 nm, a second color material, which has a maximum absorption wavelength of 560 nm to 620 nm and a half width of the absorption spectrum of 15 nm to 55 nm, and a third color material for which the lowest transmittance wavelength in the wavelength range of 400 nm to 780 nm is in the range of 650 nm to 780 nm; and a functional layer composed of one or more layers and disposed on the opposite side of the colored layer from the transparent material. The functional layer has an ultraviolet absorption layer. In the optical film, each of a* and b* is in the range of -5 to +5.
Inventors:
ISHIKAWA SHINYA (JP)
ISHIMARU YOSHIKO (JP)
FUTAMATA KAI (JP)
ISHIMARU YOSHIKO (JP)
FUTAMATA KAI (JP)
Application Number:
PCT/JP2022/010832
Publication Date:
September 15, 2022
Filing Date:
March 11, 2022
Export Citation:
Assignee:
TOPPAN INC (JP)
International Classes:
G02B5/22; G02B1/111; G09F9/00; G09F9/30; H01L27/32; H01L51/50; H05B33/02; H05B33/12; H05B33/14
Domestic Patent References:
| WO2019065021A1 | 2019-04-04 |
Foreign References:
| JP2001147319A | 2001-05-29 | |||
| KR20190109988A | 2019-09-27 | |||
| JP2002071940A | 2002-03-12 | |||
| JP2012118305A | 2012-06-21 | |||
| JP2009031733A | 2009-02-12 | |||
| KR20200118555A | 2020-10-16 | |||
| JP2021040749A | 2021-03-18 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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