Title:
光学フィルム、及び映像表示装置
Document Type and Number:
Japanese Patent JP6503708
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an optical film that substantially prevents problems caused by warpage or optical adhesion even in a high-temperature environment or a high-temperature and high-humidity environment such as an on-vehicle environment.SOLUTION: The optical film includes: a base layer 28; an optical function layer 22 laminated on one surface of the base layer and having a plurality of light-transmitting portions 23 arranged along a layer surface of the base layer to be able to transmit light, and a light-absorbing portion 24 arranged between adjoining light-transmitting portions to be able to absorb light; and a rough surface-forming layer 21 having a thickness of 15 μm or more and 25 μm or less and laminated on a surface on an opposite side of the optical function layer to the side where the base layer is laminated. The rough surface-forming layer has a rough surface formed on an opposite side to the optical function layer. A surface roughness Ra of the rough surface is 0.1 μm or more and 0.2 μm or less; and the material constituting the rough surface-forming layer is a resin having a crosslinking density of 320 or more and 740 or less.SELECTED DRAWING: Figure 3
Inventors:
Hiroyuki Tomita
Application Number:
JP2014243037A
Publication Date:
April 24, 2019
Filing Date:
December 01, 2014
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B5/02; B32B7/023; F21S2/00; F21V3/00; F21V5/00; G02B5/00; G02F1/13357
Domestic Patent References:
| JP2014063106A | ||||
| JP2011034068A | ||||
| JP2010107660A |
Foreign References:
| US20100055409 | ||||
| US20100238665 |
Attorney, Agent or Firm:
Noriyuki Yamamoto
Koji Yamamoto
Koji Yamamoto