Title:
液晶ディスプレイ保護板の製造方法
Document Type and Number:
Japanese Patent JP7160838
Kind Code:
B2
Abstract:
The present invention provides a method for manufacturing a liquid crystal display protection plate having a functional layer of which an in-plane retardation value is in a desirable range and the visibility of a liquid crystal display through a polarizing filter is excellent. This method for manufacturing a liquid crystal display protection plate (1) includes: a step (X) for preparing a resin plate (16X); and a step (Y) for bonding a functionality-providing film (17) to the resin plate (16X). The step (Y) is performed under a condition in which the temperature of the resin plate (16X) does not exceed 60°C. The in-plane retardation value (R1) of the resin plate (16X) is 50-210 nm, the in-plane retardation value (R2) of the liquid crystal display protection plate (1) is 50-210 nm, and the ratio (R2/R1) of the in-plane retardation value (R2) of the liquid crystal display protection plate (1) to the in-plane retardation value (R1) of the resin plate (16X) is 0.9-1.1.
Inventors:
Masayasu Kataoka
Kazuo Funazaki
Kazuo Funazaki
Application Number:
JP2019561044A
Publication Date:
October 25, 2022
Filing Date:
December 14, 2018
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
G02B5/30; B32B7/023; B32B27/30; B32B27/36; G02B1/11; G02B1/14; G02F1/1333
Domestic Patent References:
| JP2017213882A | ||||
| JP201253110A |
Foreign References:
| WO2015093037A1 | ||||
| WO2012077809A1 |
Attorney, Agent or Firm:
Ken Ieiri
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