Invention Grant
- Patent Title: Anti-glare film, method for manufacturing the same, and display device using the same
- Patent Title (中): 防眩光膜,其制造方法以及使用其的显示装置
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Application No.: US12485663Application Date: 2009-06-16
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Publication No.: US07751121B2Publication Date: 2010-07-06
- Inventor: Tsutomu Nagahama , Yumi Haga , Hitoshi Watanabe , Shinichi Matsumura
- Applicant: Tsutomu Nagahama , Yumi Haga , Hitoshi Watanabe , Shinichi Matsumura
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: K&L Gates LLP
- Priority: JPP2007-033855 20070214; JPP2007-341220 20071228
- Main IPC: G02B5/02
- IPC: G02B5/02

Abstract:
An anti-glare film has a plurality of diffuser elements, and has specified optical properties. The ratio of I(α+1)/I(α) is more than 0.1 to 0.6, where I(α) is an intensity of a light reflected toward an arbitrary angle α of 10° or less from a specular reflection direction of an incident light upon the surface at an angle of 5° to 30° from the surface normal, and I(α+1) is an intensity of a reflected light deviated from the arbitrary angle α by 1° in a wide-angle direction. The gain of a light reflected in the direction at 20° or more from the specular reflection direction of the incident light is 0.02 or less, in which the gain is obtained by normalizing a reflected light intensity using a specular reflection intensity of a standard diffuse plate as 1. The diffuser elements have an average space therebetween of 50 to 300 micrometers.
Public/Granted literature
- US20090290220A1 ANTI-GLARE FILM, METHOD FOR MANUFACTURING, THE SAME, AND DISPLAY DEVICE USING THE SAME Public/Granted day:2009-11-26
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