Title:
COMPOSITION FOR FORMING PIGMENTED LAYER
Document Type and Number:
Japanese Patent JP2022140434
Kind Code:
A
Abstract:
To prevent a reduction in display quality due to external light reflection in an optical film and increase the life of a light emitting device of a display.SOLUTION: In a composition for forming a pigmented layer containing an active energy ray curable resin, a photopolymerization initiator, a coloring matter, and a solvent, the coloring matter contains a first coloring material having a maximum absorption wavelength within a range of 470 nm or more and 530 nm or less and a half width of an absorption spectrum of 15 nm or more and 45 nm or less, a second coloring material having a maximum absorption wavelength of 560 nm or more and 620 nm or less and a half width of an absorption spectrum of 15 nm or more and 55 nm or less, and a third coloring material in which a wavelength with the lowest transmissivity within a wavelength range of 400 nm-780 nm is within a range of 650 nm or more and 780 nm or less. In an optical film having a pigmented layer with a thickness of 5 μm formed on a transparent substrate having one or more functional layers by using the composition for forming a pigmented layer, hue values a* and b* are within a range of -5 or more and +5 or less.SELECTED DRAWING: None
More Like This:
Inventors:
Shinya Ishikawa
Yoshiko Ishimaru
Futamata Kai
Yoshiko Ishimaru
Futamata Kai
Application Number:
JP2022093144A
Publication Date:
September 26, 2022
Filing Date:
June 08, 2022
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
G02B5/22; C09B67/20
Attorney, Agent or Firm:
Yasushi Matsunuma
Shiro Suzuki
Yuichiro Shimizu
Makiko Otsuki
Shiro Suzuki
Yuichiro Shimizu
Makiko Otsuki