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US 8,502,094 B2Granted
Illuminated keyboard
AssigneePrimax Electronics Ltd.
InventorBo-An Chen
Life of this patent
Estimating the term…
Abstract
An illuminated keyboard includes a transparent frame plate, a key, a light source and a membrane switch circuit module. The light beam emitted by the light source is transmissible through the transparent frame plate. Consequently, the light source may be disposed on the membrane switch circuit module, between the key and the transparent frame plate, or under the transparent frame plate.
Claims18
An illuminated keyboard comprising:
- a transparent frame plate;
- a membrane switch circuit module disposed on said transparent frame plate, wherein said membrane switch circuit module comprises:
- an upper wiring board having at least one upper contact and a light source circuit pattern, wherein a light source and said light source circuit pattern are disposed on said upper wiring board, and said light source circuit pattern is connected with said light source for driving said light source;
- a partition plate disposed under said upper wiring board, and having a first partition plate opening and a second partition plate opening, wherein when said membrane switch circuit module is pressed, said upper contact is inserted into said first partition plate opening, wherein said light source is penetrated through said second partition plate opening;
- and
- lower wiring board disposed under said partition plate, and having a lower contact corresponding to said upper contact and a lower wiring board opening to be penetrated by said light source, wherein when said membrane switch circuit module is pressed, said upper contact is contacted with said lower contact, wherein said light source is successively penetrated through said second partition plate opening and said lower wiring board opening, and inserted into a frame plate opening of said transparent frame plate;
- at least one key connected with said transparent frame plate, wherein when said key is pressed, said key is sustained against said membrane switch circuit module;
- and said light source is arranged between said key and said transparent frame plate for emitting a light beam.
5 more elements
An illuminated keyboard comprising:
- a transparent frame plate;
- a membrane switch circuit module disposed on said transparent frame plate, wherein said membrane switch circuit module comprises:
- an upper wiring board having at least one upper contact;
- a partition plate disposed under said upper wiring board, and having a partition plate opening and a light source circuit pattern, wherein when said membrane switch circuit module is pressed, said upper contact is inserted into said partition plate opening, wherein a light source and said light source circuit pattern are disposed on said partition plate, and said light source circuit pattern is connected with said light source for driving said light source;
- and
- a lower wiring board disposed under said partition plate, and having a lower contact corresponding to said upper contact and a lower wiring board opening to be penetrated by said light source, wherein when said membrane switch circuit module is pressed, said upper contact is contacted with said lower contact, wherein said light source is penetrated through said partition plate opening, and inserted into a frame plate opening of said transparent frame plate;
- at least one key connected with said transparent frame plate, wherein when said key is pressed, said key is sustained against said membrane switch circuit module;
- and said light source is arranged between said key and said transparent frame plate for emitting a light beam.
5 more elements
An illuminated keyboard, comprising:
- a transparent frame plate;
- a membrane switch circuit module disposed on said transparent frame plate, wherein said membrane switch circuit module comprises:
- an upper wiring board having at least one upper contact:
- a partition plate disposed under said upper wiring board, and having a partition plate opening, wherein when said membrane switch circuit module is pressed, said upper contact is inserted into said partition plate opening;
- and
- a lower wiring board disposed under said partition plate, and having a lower contact corresponding to said upper contact and a light source circuit pattern, wherein when said membrane switch circuit module is pressed, said upper contact is contacted with said lower contact, wherein a light source and said light source circuit pattern are disposed on said lower wiring board, and said light source circuit pattern is connected with said light source for driving said light source, wherein said light source is inserted into a frame plate opening of said transparent frame plate;
- at least one key connected with said transparent frame plate, wherein when said key is pressed, said key is sustained against said membrane switch circuit module;
- and said light source is arranged between said key and said transparent frame plate for emitting a light beam.
5 more elements
An illuminated keyboard, comprising:
- a supporting plate;
- a transparent frame plate disposed on said supporting plate;
- a membrane switch circuit module disposed on said transparent frame plate, wherein said membrane switch circuit module comprises:
- an upper wiring board having at least one upper contact and an upper wiring board opening, wherein a light source is penetrated through said upper wiring board opening;
- a partition plate disposed under said upper wiring board, and having a first partition plate opening and a second partition plate opening, wherein when said membrane switch circuit module is pressed, said upper contact is inserted into said first partition plate opening, wherein said light source is penetrated through said second partition plate opening;
- and
- a lower wiring board disposed under said partition plate, and having a lower contact corresponding to said upper contact and a lower wiring board opening to be penetrated by said light source, wherein when said membrane switch circuit module is pressed, said upper contact is contacted with said lower contact, wherein said light source is successively penetrated through said upper wiring board opening, said second partition plate opening and said lower wiring board opening, and inserted into said transparent frame plate;
- at least one key connected with said transparent frame plate, wherein when said key is pressed, said key is sustained against said membrane switch circuit module;
- a light source film layer arranged between said key and said membrane switch circuit module, and having a light source circuit pattern;
- and
- said light source is disposed on said light source film layer and connected with said light source circuit pattern, wherein said light source is driven by said light source circuit pattern to emit a light beam.
8 more elements
An illuminated keyboard, comprising:
- a transparent frame plate;
- a membrane switch circuit module disposed on said transparent frame plate, wherein said membrane switch circuit module comprises:
- an upper wiring board having at least one upper contact and an upper wiring board opening, wherein a light source is penetrated through said upper wiring board opening;
- a partition plate disposed under said upper wiring board, and having a first partition plate opening and a second partition plate opening, wherein when said membrane switch circuit module is pressed, said upper contact is inserted into said first partition plate opening, wherein said light source is penetrated through said second partition plate opening;
- and
- a lower wiring board disposed under said partition plate, and having a lower contact corresponding to said upper contact and a lower wiring board opening to be penetrated by said light source, wherein when said membrane switch circuit module is pressed, said upper contact is contacted with said lower contact, wherein said light source is successively penetrated through said upper wiring board opening, said second partition plate opening and said lower wiring board opening, and inserted into said transparent frame plate;
- at least one key connected with said transparent frame plate, wherein when said key is pressed, said key is sustained against said membrane switch circuit module;
- an elastic film layer arranged between said membrane switch circuit and said key, and having a light source circuit pattern;
- and
- said light source is disposed on said elastic film layer and connected with said light source circuit pattern, wherein said light source is driven by said light source circuit pattern to emit a light beam.
7 more elements
Dependencies are inferred from the claim text.