Title:
OPTICAL FILM AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/018757
Kind Code:
A1
Abstract:
Provided is an optical film comprising a sheet-shaped transparent substrate and a colored layer and a functional layer that are formed on the transparent substrate, wherein the colored layer is formed from a cured material containing a pigment (A), an energy-beam-curable compound (B), a photopolymerization initiator (C), and a radial scavenger (D). The pigment (A) contains at least one of a first color material, a second color material, and a third color material. The ratio A/B is 0.01-0.25, where A is the peak intensity of the infrared absorption spectrum of the colored layer at 780-825 cm-1, and B is the peak intensity of the infrared absorption spectrum of pentaerythritol tetraacrylate at 780-825 cm-1. The ultraviolet shielding ratio of the transparent substrate and/or the functional layer is 85% or greater as measured in accordance with JIS L1925.
Inventors:
MORINAGA TAKAHIRO (JP)
ISHIKAWA SHINYA (JP)
ISHIMARU YOSHIKO (JP)
SHIMADA ERIKA (JP)
ISHIKAWA SHINYA (JP)
ISHIMARU YOSHIKO (JP)
SHIMADA ERIKA (JP)
Application Number:
PCT/JP2023/019769
Publication Date:
January 25, 2024
Filing Date:
May 26, 2023
Export Citation:
Assignee:
TOPPAN HOLDINGS INC (JP)
International Classes:
G02B5/22; C08F2/44; C08F2/50; C08F20/00; C08L33/04; G02B1/111; G02B1/118; G02B1/14; G02B1/16; G02B1/18; G02B5/00; G09F9/00; H05B33/02; H05B33/12; H10K50/10; H10K50/86; H10K59/38
Domestic Patent References:
| WO2015098906A1 | 2015-07-02 | |||
| WO2021162115A1 | 2021-08-19 |
Foreign References:
| JP7207598B1 | 2023-01-18 | |||
| JP3032056B2 | 2000-04-10 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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