Title:
OPTICAL FILM, SENSOR FOR TOUCH PANEL, AND METHOD FOR MANUFACTURING OPTICAL FILM
Document Type and Number:
Japanese Patent JP2016090925
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical film which prevents cracks occurring in a hard coat layer at the time of bending in a production process, as a result, suppresses whitening and interference unevenness, and can improve durability and sensitivity even when used for a long time; and a sensor for a touch panel and a method for producing an optical film.SOLUTION: An optical film has an in-plane retardation value (Ro) at a light wavelength of 550 nm of within a range of 30-250 nm, and has such a structure that two substrate units having at least a substrate film layer, a hard coat layer and a conductive layer in this order are laminated. The two substrate units are laminated so that the respective substrate film layers directly face each other, and the substrate film layers contain a cycloolefin resin.SELECTED DRAWING: Figure 1
Inventors:
YASUI CHIKARA
Application Number:
JP2014228028A
Publication Date:
May 23, 2016
Filing Date:
November 10, 2014
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
G02B5/30; B32B7/02; B32B27/00; G02B1/10
Attorney, Agent or Firm:
Gwangyang International Patent Office
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