Patent ID: 8502094

Claim:
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.