发明授权
- 专利标题: Organic electroluminescent device, polarizing surface light source, and liquid-crystal display
- 专利标题(中): 有机电致发光器件,偏振面光源和液晶显示器
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申请号: US09759339申请日: 2001-01-16
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公开(公告)号: US06947105B2公开(公告)日: 2005-09-20
- 发明人: Minoru Miyatake , Tatsuki Nagatsuka
- 申请人: Minoru Miyatake , Tatsuki Nagatsuka
- 申请人地址: JP Osaka
- 专利权人: Nitto Denko Corporation
- 当前专利权人: Nitto Denko Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Sughrue Mion, PLLC
- 优先权: JPP.2000-007956 20000117
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335 ; G02B5/30 ; G02F1/13357 ; H01L51/30 ; H01L51/50 ; H01L51/52 ; H05B33/00 ; H05B33/02 ; H05B33/12 ; H05B33/14
摘要:
An organic electroluminescent device containing an organic electroluminescent element (2) and a polarized-light scattering film (1) which comprises a light-transmitting resin (11) and dispersedly contained therein minute regions (12) differing from the light-transmitting resin in birefringent characteristics and in which the difference in refractive index between the minute regions and the light-transmitting resin in the axis direction in which a linearly polarized light has a maximum transmittance, Δn1, is smaller than 0.03 and that in a direction perpendicular to the Δn1 direction, Δn2, is from 0.03 to 0.5, the light produced by the organic electroluminescent element being emitted from the device through the polarized-light scattering film. Also disclosed are a polarizing surface light source which comprises the organic electroluminescent device and a liquid-crystal display which comprises the polarizing surface light source and a liquid-crystal cell disposed on the light emission side of the light source.
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