发明名称 |
Keypad with optical waveguide having at least one prism pattern |
摘要 |
A keypad is provided. The keypad includes an optical waveguide on the top surface of which at least one prism pattern is formed, a light source for generating light and causing the light to be incident to a side surface of the optical waveguide, and at least one optical detector located below the optical waveguide to correspond to the at least one prism pattern.
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申请公布号 |
US7498560(B2) |
申请公布日期 |
2009.03.03 |
申请号 |
US20070856865 |
申请日期 |
2007.09.18 |
申请人 |
SAMSUNG ELECTRONICS CO. LTD |
发明人 |
HWANG SUN-LYEONG;KIM KI-CHAN |
分类号 |
H01J40/14 |
主分类号 |
H01J40/14 |
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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