EP 1890310 A1 20080220 - Keypad for a handheld electronic device with a light guide
Title (en)
Keypad for a handheld electronic device with a light guide
Title (de)
Tastatur für tragbares elektronisches Gerät mit einem Lichtleiter
Title (fr)
Clavier pour dispositif électronique portable avec guide de lumière
Publication
Application
Priority
EP 06117416 A 20060718
Abstract (en)
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.
IPC 8 full level
H01H 13/83 (2006.01)
CPC (source: EP)
H01H 13/83 (2013.01); H01H 13/84 (2013.01); H01H 2219/04 (2013.01); H01H 2219/062 (2013.01); H01H 2221/054 (2013.01)
Citation (search report)
- [XY] US 4349705 A 19820914 - KUHFUS GERD
- [XY] GB 2065373 A 19810624 - SHINETSU POLYMER CO
- [Y] EP 0554084 A2 19930804 - NEC CORP [JP]
- [Y] US 4163138 A 19790731 - HARDEN PHILLIP L [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1890310 A1 20080220; EP 1890310 B1 20091028; AT E447234 T1 20091115; AT E483241 T1 20101015; CA 2594028 A1 20080118; CA 2594028 C 20110621; DE 602006010062 D1 20091210; DE 602006017269 D1 20101111; EP 2003669 A1 20081217; EP 2003669 B1 20100929; HK 1113706 A1 20081010; HK 1127436 A1 20090925
DOCDB simple family (application)
EP 06117416 A 20060718; AT 06117416 T 20060718; AT 08165757 T 20060718; CA 2594028 A 20070718; DE 602006010062 T 20060718; DE 602006017269 T 20060718; EP 08165757 A 20060718; HK 08109083 A 20080815; HK 09105341 A 20090615