发明名称 |
Surface light source device and liquid crystal display device |
摘要 |
A surface light source device includes a point source of light and a light guide plate causing light from the point source of light introduced from a light incident end face and emitted from a light emission surface to outside. The light guide plate is formed of a light introducing portion provided at an end of a light guide plate body. The point source of light is placed facing the light incident end face positioned at an end face of the light introducing portion. Along a region of the light introducing portion adjacent to the light guide plate body, a directivity converting portion is provided. The directivity converting portion is configured by arranging V-grooved directivity conversion patterns in an arc shape. A region of the light introducing portion has a thickness equal to that of the light guide plate body and has a surface positioned in the same plane. |
申请公布号 |
US8400585(B2) |
申请公布日期 |
2013.03.19 |
申请号 |
US200913003324 |
申请日期 |
2009.07.08 |
申请人 |
SHINOHARA MASAYUKI;TANOUE YASUHIRO;ISHIKAWA TAKAKO;UENO YOSHIHIRO;OMRON CORPORATION |
发明人 |
SHINOHARA MASAYUKI;TANOUE YASUHIRO;ISHIKAWA TAKAKO;UENO YOSHIHIRO |
分类号 |
G02F1/1335 |
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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