Title:
LONG RETARDATION FILM, LONG OPTICAL FILM, LONG POLARIZING FILM, METHOD FOR MANUFACTURING LONG RETARDATION FILM, AND METHOD FOR MANUFACTURING LONG OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2024/019148
Kind Code:
A1
Abstract:
A long retardation film (10) including a longitudinal direction (D2) and a lateral direction (D1) is provided with a substrate (20), and a retardation layer (40) superposed on the substrate (20). The retardation layer (40) includes a first region (41) and a pair of second regions (42). The first region (41) is located between the pair of second regions (42) in the lateral direction (D1). The retardation layer (40) includes a cured product of a liquid crystal composition. The second region (42) has a second slow axis (A42). A second orientation angle (θ42) between the second slow axis (A42) and the longitudinal direction (D2) is 0° or more but less than 10°, or 170° to 180° exclusive.
Inventors:
HIRUMA YUSUKE (JP)
TAKAHASHI TERUTAKA (JP)
OTSU MOEKO (JP)
FURUGEN RYO (JP)
TAKAHASHI TERUTAKA (JP)
OTSU MOEKO (JP)
FURUGEN RYO (JP)
Application Number:
PCT/JP2023/026797
Publication Date:
January 25, 2024
Filing Date:
July 21, 2023
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G02B5/30
Foreign References:
| JP2019079027A | 2019-05-23 | |||
| JP2021124641A | 2021-08-30 | |||
| JP2020095203A | 2020-06-18 | |||
| JP2012032445A | 2012-02-16 | |||
| JP2005283670A | 2005-10-13 |
Attorney, Agent or Firm:
MIYAJIMA Manabu et al. (JP)
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