GB2164496B - Back-illuminated membrane key - Google Patents
Back-illuminated membrane keyInfo
- Publication number
- GB2164496B GB2164496B GB08522276A GB8522276A GB2164496B GB 2164496 B GB2164496 B GB 2164496B GB 08522276 A GB08522276 A GB 08522276A GB 8522276 A GB8522276 A GB 8522276A GB 2164496 B GB2164496 B GB 2164496B
- Authority
- GB
- United Kingdom
- Prior art keywords
- membrane key
- illuminated membrane
- illuminated
- key
- membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2203/00—Form of contacts
- H01H2203/036—Form of contacts to solve particular problems
- H01H2203/052—Form of contacts to solve particular problems for backlighted keyboards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/022—Velvet; Mat finish
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2215/00—Tactile feedback
- H01H2215/004—Collapsible dome or bubble
- H01H2215/008—Part of substrate or membrane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/028—Printed information
- H01H2219/03—Printed information in transparent keyboard
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/036—Radio; TV
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/008—Static electricity considerations
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB848423358A GB8423358D0 (en) | 1984-09-15 | 1984-09-15 | Flat membrane key and keyboard |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8522276D0 GB8522276D0 (en) | 1985-10-16 |
GB2164496A GB2164496A (en) | 1986-03-19 |
GB2164496B true GB2164496B (en) | 1988-05-18 |
Family
ID=10566770
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB848423358A Pending GB8423358D0 (en) | 1984-09-15 | 1984-09-15 | Flat membrane key and keyboard |
GB08522276A Expired GB2164496B (en) | 1984-09-15 | 1985-09-09 | Back-illuminated membrane key |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB848423358A Pending GB8423358D0 (en) | 1984-09-15 | 1984-09-15 | Flat membrane key and keyboard |
Country Status (4)
Country | Link |
---|---|
GB (2) | GB8423358D0 (en) |
HK (1) | HK76490A (en) |
IL (1) | IL76293A (en) |
SG (1) | SG41690G (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2191340A (en) * | 1986-05-20 | 1987-12-09 | Amalgamated Wireless Australas | Interchangeable designation for membrane keyboard |
FR2632745A1 (en) * | 1988-06-13 | 1989-12-15 | Alsthom Cgee | Active keyboard implemented by programmable logic - has provision for altering function by re-programming and replacement of overlay |
CA2066930C (en) * | 1991-06-04 | 1996-08-06 | Gary M. Sach | Tactile feedback switch actuator |
GB9325935D0 (en) * | 1993-12-18 | 1994-02-23 | C & K Switches Limited | Improvements in membrane switch graphic assemblies |
DE10034771A1 (en) * | 2000-07-18 | 2002-01-31 | Mannesmann Vdo Ag | Switching device for an electrical device |
EP1892737A1 (en) * | 2006-08-23 | 2008-02-27 | IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. | Touchpad |
KR101688941B1 (en) * | 2010-08-30 | 2016-12-22 | 엘지전자 주식회사 | Manufacturing method of portable terminal |
-
1984
- 1984-09-15 GB GB848423358A patent/GB8423358D0/en active Pending
-
1985
- 1985-09-04 IL IL76293A patent/IL76293A/en not_active IP Right Cessation
- 1985-09-09 GB GB08522276A patent/GB2164496B/en not_active Expired
-
1990
- 1990-06-13 SG SG416/90A patent/SG41690G/en unknown
- 1990-09-27 HK HK764/90A patent/HK76490A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB8423358D0 (en) | 1984-11-07 |
HK76490A (en) | 1990-10-05 |
IL76293A (en) | 1989-02-28 |
IL76293A0 (en) | 1986-01-31 |
SG41690G (en) | 1990-08-03 |
GB2164496A (en) | 1986-03-19 |
GB8522276D0 (en) | 1985-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020909 |