Title:
KEYPAD WITH ILLUMINATION STRUCTURE
Document Type and Number:
WIPO Patent Application WO2005024869
Kind Code:
A3
Abstract:
An illuminated keypad (400) includes a substantially transparent keypad (420) having a plurality of actuator buttons (412), a plurality of switches (404) residing substantially and correspondingly below the plurality of actuator buttons, a display laminate layer (415) residing between the plurality of actuator buttons and the plurality of switches, and a light source (417) reflectively illuminating a pattern of a symbol on the laminate layer by radiating light through the substantially transparent keypad. The display laminate can include a driver layer (406) having a conductor pattern configured in the pattern of the symbol to be displayed on the substantially transparent keypad, a transparent conductor layer (410), and an electrically active ink layer (408) disposed between the transparent conductor layer and the driver layer.
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Inventors:
YU HUINAN J (US)
LI ZILI (US)
TRACY JAMES L (US)
VAKIL BHARAT N (US)
YANG SEN (US)
ZHUANG ZHIMING (US)
LI ZILI (US)
TRACY JAMES L (US)
VAKIL BHARAT N (US)
YANG SEN (US)
ZHUANG ZHIMING (US)
Application Number:
PCT/US2004/027469
Publication Date:
March 09, 2006
Filing Date:
August 24, 2004
Export Citation:
Assignee:
MOTOROLA INC (US)
YU HUINAN J (US)
LI ZILI (US)
TRACY JAMES L (US)
VAKIL BHARAT N (US)
YANG SEN (US)
ZHUANG ZHIMING (US)
YU HUINAN J (US)
LI ZILI (US)
TRACY JAMES L (US)
VAKIL BHARAT N (US)
YANG SEN (US)
ZHUANG ZHIMING (US)
International Classes:
H01H13/83; H03M11/00; H01H; (IPC1-7): H03M11/00
Foreign References:
| US5573107A | 1996-11-12 | |||
| US5661279A | 1997-08-26 | |||
| US5797482A | 1998-08-25 | |||
| US5510782A | 1996-04-23 |
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