Title:
光学フィルム
Document Type and Number:
Japanese Patent JP7320926
Kind Code:
B2
Abstract:
Provided is an optical film in which it is possible to suppress deterioration of a retardation film without a compound that selectively absorbs visible light having a short wavelength near 400 nm and is contained in a light-selective absorption layer migrating to a layer outside the light-selective absorption layer, and to which excellent display characteristics can be imparted. The optical film includes at least one layer of a light-selective absorption layer formed from an active-energy-ray-curable composition, and satisfies formula (1). Formula (1): A (405) ≥ 0.5 [In formula (1), A (405) represents the degree of absorbance at a wavelength of 405 nm.]
Inventors:
Chie Sakagami
Ai Kobashi
Yuji Asazu
Ai Kobashi
Yuji Asazu
Application Number:
JP2018119679A
Publication Date:
August 04, 2023
Filing Date:
June 25, 2018
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
G02B5/22; G02B5/30; G02F1/1335; G02F1/13363; G09F9/00; H10K50/10; H10K59/10
Domestic Patent References:
| JP2009244757A | ||||
| JP2005189645A |
Foreign References:
| WO2017099016A1 |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office
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