发明名称 |
PIANO-STYLE KEYPAD EMPLOYING A LIGHT GUIDE |
摘要 |
An improved piano-style keypad comprises a light guide and a key sheet, with the light guide retaining the key sheet on a substrate, such as a printed circuit board of a handheld electronic device. The keypad is advantageously configured to enable key caps of the keypad to be adhered to key bodies of the keypad in a fashion that provides long- term reliability while still providing keys that can readily actuated and that provide tactile feedback that is desirable to the user.
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申请公布号 |
CA2594028(C) |
申请公布日期 |
2011.06.21 |
申请号 |
CA20072594028 |
申请日期 |
2007.07.18 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
CHEN, CHAO |
分类号 |
H01H13/83;F21V8/00;F21V33/00;G06F3/02;H01H13/708 |
主分类号 |
H01H13/83 |
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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