Title:
OPTICAL LAMINATE
Document Type and Number:
WIPO Patent Application WO/2024/024119
Kind Code:
A1
Abstract:
[Abstract] [Problem] To realize excellent humid heat durability in an optical laminate comprising a liquid crystal polarizer and a liquid crystal retardation layer, which are each formed by using a polymerizable liquid crystal compound. [Solution] This optical laminate includes a protective layer, a liquid crystal polarizer, a first bonding layer, a first liquid crystal retardation layer, a second bonding layer, a second liquid crystal retardation layer, and a third bonding layer, in said order. The liquid crystal polarizer includes a cured product layer of a first liquid crystal composition, which includes a dichroic dye and a polymerizable liquid crystal compound. The first bonding layer is a cured product layer of an active energy ray curable composition. Each of the first liquid crystal retardation layer and the second liquid crystal retardation layer includes a cured product layer of a second liquid crystal composition, which includes a polymerizable liquid crystal compound. The glass transition temperature of each of the second bonding layer and the third bonding layer is no more than 25 °C.
More Like This:
Inventors:
NAGAYASU SATOSHI (JP)
HATANAKA NOBUYUKI (JP)
HATANAKA NOBUYUKI (JP)
Application Number:
PCT/JP2022/029751
Publication Date:
February 01, 2024
Filing Date:
August 03, 2022
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; H05B33/02
Domestic Patent References:
| WO2021187099A1 | 2021-09-23 | |||
| WO2019182121A1 | 2019-09-26 | |||
| WO2021230010A1 | 2021-11-18 | |||
| WO2020170697A1 | 2020-08-27 |
Foreign References:
| JP2021117500A | 2021-08-10 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Download PDF:
Previous Patent: ANTIBODY SELECTION SYSTEM AND OPERATION METHOD THEREFOR
Next Patent: FRAGRANCE COMPOSITION AND FOOD OR BEVERAGE
Next Patent: FRAGRANCE COMPOSITION AND FOOD OR BEVERAGE