发明名称 |
Display device, terminal device, light source device, and optical member having a light-direction restricting element and a transparent/scattering state switching element |
摘要 |
A display device comprising a light source and having an optical waveguide, a louver, an anisotropic scattering sheet, and a transmissive liquid crystal panel disposed along the path of light emitted from the light source. The light-restricting direction of the louver is tilted at an angle α from the Y-axis direction. The value of the angle α is set so that the arrangement direction of moiré created between the louver and the liquid crystal panel approaches the X-axis direction. A plurality of belt-shaped convex portions extending in the Y-axis direction are formed on the surface of the anisotropic scattering sheet, and are configured so that the scattering direction of the light has anisotropy. Specifically, scattering in the X-axis direction is increased, and scattering in the Y-axis direction is reduced. Moiré can thereby be reduced in a display device having increased directivity of the display. |
申请公布号 |
US8339538(B2) |
申请公布日期 |
2012.12.25 |
申请号 |
US20060408113 |
申请日期 |
2006.04.21 |
申请人 |
UEHARA SHIN-ICHI;NIIOKA SHINYA;IMAI MASAO;NLT TECHNOLOGIES, LTD.;NEC CORPORATION |
发明人 |
UEHARA SHIN-ICHI;NIIOKA SHINYA;IMAI MASAO |
分类号 |
G02F1/1335;F21V7/04;F21V17/02 |
主分类号 |
G02F1/1335 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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