Title:
PHASE DIFFERENCE LAMINATE, OPTICAL LAMINATE, AND MANUFACTURING METHOD FOR THESE
Document Type and Number:
Japanese Patent JP2021140102
Kind Code:
A
Abstract:
To provide a phase difference laminate and an optical laminate with which handleability is good when manufacturing an optical laminate, etc., and a manufacturing method for these.SOLUTION: The phase difference laminate includes a first phase difference layer, a first pasted layer and a second phase difference layer in the order stated. The first phase difference layer includes a first liquid crystal layer which is a cured layer of a polymerizable liquid crystal compound, and the second phase difference layer includes a second liquid crystal layer which is a cured layer of a polymerizable liquid crystal compound. A piercing elastic modulus E1 of the first phase difference layer is 35 g/mm or greater. The piercing elastic modulus E1 and a piercing elastic modulus E2 of the second phase difference layer satisfy formula (1). Formula (1): 0.7≤E1/E2≤1.3.SELECTED DRAWING: Figure 1
Inventors:
SAITO SOSUKE
Application Number:
JP2020039734A
Publication Date:
September 16, 2021
Filing Date:
March 09, 2020
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO
International Classes:
G02B5/30; H01L51/50; H05B33/02
Domestic Patent References:
| JP2019185007A | 2019-10-24 | |||
| JP2013033098A | 2013-02-14 | |||
| JP2009175434A | 2009-08-06 | |||
| JP2020024364A | 2020-02-13 | |||
| JP2019091029A | 2019-06-13 | |||
| JP2015021975A | 2015-02-02 |
Foreign References:
| US20180059300A1 | 2018-03-01 | |||
| KR20190076792A | 2019-07-02 |
Attorney, Agent or Firm:
Fukami patent office