发明授权
- 专利标题: Display unit
- 专利标题(中): 显示单元
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申请号: US12299888申请日: 2008-03-17
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公开(公告)号: US08558970B2公开(公告)日: 2013-10-15
- 发明人: Kei Obata , Akihiro Horii , Hiroshi Mizuno , Noriyuki Hirai , Mitsunari Hoshi
- 申请人: Kei Obata , Akihiro Horii , Hiroshi Mizuno , Noriyuki Hirai , Mitsunari Hoshi
- 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: K&L Gates LLP
- 优先权: JP2007-073621 20070320; JP2008-016472 20080128
- 国际申请: PCT/JP2008/054872 WO 20080317
- 国际公布: WO2008/114774 WO 20080925
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335 ; F21V7/04 ; G02B5/30 ; G02B27/28
摘要:
A display unit in which the view angle in the horizontal direction of emitting light is wider than the view angle in the vertical direction thereof, in which the emitting light has a polarization component in the vertical direction viewable with the use of a polarized sunglass, and which is able to improve display luminance is provided. A luminance enhancement film has a plurality of convex sections which extend toward the horizontal direction and are arranged in the direction crossing the extending direction, and in which the refractive index in the extending direction is larger than the refractive index in the arrangement direction. A wave plate changes the polarization direction of light entering the wave plate so that an angle made by a polarization direction of the polarization component in the arrangement direction of the convex section after passing through the wave plate among light passing through the luminance enhancement film and the direction of a polarizing axis a of a first polarizer becomes small. A second polarizer has a polarizing axis b that transmits the polarization component in the vertical direction.
公开/授权文献
- US20090195728A1 DISPLAY UNIT 公开/授权日:2009-08-06
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