Title:
OPTICAL FILM AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/035414
Kind Code:
A1
Abstract:
The present invention relates to an optical film comprising a retardation layer provided with an optical function as an A-plate, and the present invention enables a simpler configuration and process and further improved quality, while ensuring sufficient viewing angle characteristics. An optical film comprising a retardation layer that provides light transmitted therethrough with an in-plane retardation, wherein: a retardation layer 7 is formed from a single layer of a polymerized product of a mixture containing a polymerizable calamitic liquid crystal monomer, and also containing a homeotropically aligning liquid crystal polymer that may be polymerizable; and a positive C-plate layer region 9 provided with the optical function of a positive C-plate, an optical interface, and a positive A-plate layer region 8 provided with the optical function of a positive A-plate are consecutively formed from one surface side of the single layer.
More Like This:
Inventors:
EMORI SATOSHI (JP)
KURODA TAKASHI (JP)
USHIYAMA AKINOBU (JP)
KURODA TAKASHI (JP)
USHIYAMA AKINOBU (JP)
Application Number:
PCT/JP2018/029951
Publication Date:
February 21, 2019
Filing Date:
August 09, 2018
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G02F1/13363; G02B5/30; G09F9/00
Domestic Patent References:
| WO2018173773A1 | 2018-09-27 | |||
| WO2018173778A1 | 2018-09-27 |
Foreign References:
| JP2003227935A | 2003-08-15 | |||
| JP2002333642A | 2002-11-22 | |||
| JP2002333524A | 2002-11-22 | |||
| JP2015127793A | 2015-07-09 | |||
| JP2018151535A | 2018-09-27 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF: