Invention Grant
- Patent Title: Antiglare film and transmissive liquid crystal display
- Patent Title (中): 防盗胶片和透射液晶显示屏
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Application No.: US12001922Application Date: 2007-12-12
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Publication No.: US07824044B2Publication Date: 2010-11-02
- Inventor: Yusuke Tochigi , Tomo Yoshinari , Kae Takahashi , Hisamitsu Kameshima
- Applicant: Yusuke Tochigi , Tomo Yoshinari , Kae Takahashi , Hisamitsu Kameshima
- Applicant Address: JP
- Assignee: Toppan Printing Co., Ltd.
- Current Assignee: Toppan Printing Co., Ltd.
- Current Assignee Address: JP
- Agency: Squire, Sanders & Dempsey L.L.P.
- Priority: JP2007-168579 20070627
- Main IPC: G02B27/00
- IPC: G02B27/00 ; G02B5/02

Abstract:
An antiglare film satisfies both (1) high antiglare property in the front direction and (2) absence of white blurring. One embodiment of the invention is an antiglare film provided with an antiglare layer on a transparent substrate, wherein the antiglare layer has a rugged structure on the surface opposite to the transparent substrate; the 5° reflectance of the antiglare film surface on the antiglare layer side is in a range of from 0.30% to 0.70%; the antiglare film surface on the antiglare layer side is provided with a rugged structure having arithmetic average roughness (Ra1) in the range of from 0.020 μm to 0.040 μm when a cutoff wavelength (λC) is 0.008 mm; and the antiglare film surface on the antiglare layer side is provided with a rugged structure having arithmetic average roughness (Ra2) in the range of from 0.35 μm to 0.45 μm when a cutoff wavelength (λC) is 0.8 mm.
Public/Granted literature
- US20090002832A1 Antiglare film and transmissive liquid crystal display Public/Granted day:2009-01-01
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