| Original document(50 pages) 中文版 |
In a display device equipped with a light source device, a second light-guide member is provided to the back surface of a first light-guide member that has an emitted light control sheet provided to the front surface thereof. The emitted light control sheet is composed of a flat plate portion and protrusions. A first light source mounted to a side surface of the first light-guide member, and a second light source mounted to a side surface of a second light-guide member are switched and turned on. The emitted light control sheet has light-condensing effects when the first light source is on, and has diffusing effects when the second light source is turned on. The angle range of illuminating light can thereby be switched. |
Application Number
申请号 |
200610139942 |
Application Date
申请日 |
2006.09.27 |
| Title 名称 |
Light source device, display device, and terminal device |
Publication Number
公开号 |
1940678 |
Publication Date
公开日 |
2007.04.04 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
G02F1/13357;G02F1/133;G09G3/34;G09G3/36 |
Applicant(s) Name
申请人 |
NEC Corporation |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
zhujin gui |
| More information 更 多 信 息 |
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