Invention Grant
- Patent Title: Antiglare film and image display
- Patent Title (中): Antiglare电影和图像显示
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Application No.: US11633092Application Date: 2006-12-04
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Publication No.: US07939160B2Publication Date: 2011-05-10
- Inventor: Tsutomu Furuya , Masato Kuwabara
- Applicant: Tsutomu Furuya , Masato Kuwabara
- Applicant Address: JP Tokyo
- Assignee: Sumitomo Chemical Company, Limited
- Current Assignee: Sumitomo Chemical Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2005-351617 20051206
- Main IPC: B32B3/26
- IPC: B32B3/26 ; G02B5/02

Abstract:
The present invention provides an antiglare film having the reflectance at an angle of reflection of 30° for incident light 13 at an incident angle of 30° of not more than 2%, and the reflectance of not more than 0.003% at an angle of reflection of 40° in an antiglare film which also satisfies any of the following (1) to (5): (1) 50 to 150 protrusions are provided within a region of 200 μm×200 μm; (2) when the height of each point on the uneven surface is shown in a histogram, the peak exists in a range between +20% and −20% with the middle point between the highest point and the lowest point at the center; (3) the arithmetic average height Pa on the surface is 0.08 μm to 0.15 μm; (4) the maximum height in a cross section Pt on the surface is 0.4 μm to 0.9 μm; and (5) the average area of the polygons is 300 μm2 to 1000 μm2 when Voronoi division is carried out on the surface of the film with the peaks of these protrusions as generating points.
Public/Granted literature
- US20070139783A1 Antiglare film and image display Public/Granted day:2007-06-21
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