发明名称 |
Lighting device and liquid crystal display |
摘要 |
<p>In a liquid crystal display device configured so that ambient light is collected and the collected ambient light is guided to the back of a liquid crystal panel so as to illuminate the liquid crystal panel, a light-collecting unit 17 and a light-guiding unit 18 are provided. The light-collecting unit 17 collects and captures ambient light, and converts the ambient light into a transmitting light which transmits in the light-collecting unit 17. The light-guiding unit 18 connected to the light-collecting unit 17 redirects a light path of the transmitting light from the light-collecting unit 17 so that the transmitting light proceeds to the back of a liquid crystal panel 15. Thus, unlike conventional light-collecting units, a light-collecting unit of the invention is composed of two separated units, one being a light-collecting unit for converting ambient light into a transmitting light and the other being a light-guiding unit for guiding the transmitting light to the liquid crystal panel. This configuration attains an increase in an occupied area of the light-collecting unit and thereby achieves an increased brightness of the liquid crystal display device. <IMAGE></p> |
申请公布号 |
EP1132677(A2) |
申请公布日期 |
2001.09.12 |
申请号 |
EP20000303608 |
申请日期 |
2000.04.28 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KUBOTA, HIROFUMI;NAKAO, KENJI;UEMURA, TSUYOSHI |
分类号 |
F21S11/00;F21V8/00;G02B6/00;G02F1/13357;(IPC1-7):F21S11/00 |
主分类号 |
F21S11/00 |
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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