发明授权
- 专利标题： Diffusion sheet, backlight, liquid crystal display apparatus, and method of producing a diffusion sheet
- 专利标题（中）： 扩散片，背光源，液晶显示装置以及漫射片的制造方法
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申请号： US13552816申请日： 2012-07-19
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公开(公告)号： US09429690B2公开(公告)日： 2016-08-30
- 发明人: Jun Sasaki , Akihiro Horii
- 申请人： Jun Sasaki , Akihiro Horii
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Chip Law Group
- 优先权： JP2011-172722 20110808
- 主分类号： F21V7/04
- IPC分类号： F21V7/04 ; G02B5/02
摘要：
A diffusion sheet includes a light-transmissive substrate, a plurality of structures, and a flat portion. The light-transmissive substrate includes a first main surface, and a second main surface. The plurality of structures have convex shapes and are randomly formed on the first main surface. The flat portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) of no less than 0.9 μm.
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