Waterproof film and keyboard thereof
AssigneeDarfon Electronics Corp.
InventorsZheng-Hong Lai, Chih-Ho Hsu, Chin-Lung Chan, Che-Wei Lee, Chang-En Sun
Life of this patent
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Abstract
A waterproof film includes a film reinforcing layer, a light shielding layer, a texture layer, and a pattern. The light shielding layer is combined under the film reinforcing layer and forms a plurality of protruding structures cooperatively with the film reinforcing layer by a hot pressing process. The texture layer is attached to a release film and then formed on a top surface and a side surface of each protruding structure after a hot pressing process is performed and the release film is then peeled. The pattern is formed on the texture layer or the light shielding layer.
Claims15
A waterproof film covering a keyboard, the keyboard comprising a plurality of keyswitches, a bottom board and a keyboard frame, the plurality of keyswitches being disposed on the bottom board, the waterproof film comprising:
- a film reinforcing layer;
- a light shielding layer combined under the film reinforcing layer to form a plurality of protruding structures cooperatively with the film reinforcing layer by a hot pressing process, wherein the keyboard frame has a plurality of hole structures formed thereon corresponding to the plurality of keyswitches and is disposed on the bottom board to make each hole structure jacket the corresponding protruding structure;
- a texture layer attached to a release film and then formed on a top surface and a side surface of each protruding structure after a hot pressing process is performed and the release film is then peeled;
- a waterproof washer disposed around the plurality of keyswitches and disposed on the bottom board, a bottom periphery of the waterproof film and the waterproof washer being sandwiched between the keyboard frame and the bottom board;
- and
- a pattern formed on the texture layer or the light shielding layer.
A keyboard comprising:
- a bottom board;
- a plurality of keyswitches disposed on the bottom board, each keyswitch comprising:
- a keycap;
- a keyboard frame having a plurality of hole structures formed thereon corresponding to the plurality of keyswitches;
- and
- a lifting mechanism disposed between the bottom board and the keycap, the keycap being movable upward and downward relative to the bottom board via the lifting mechanism;
- and
- a waterproof film covering the plurality of keyswitches, the waterproof film comprising:
- a film reinforcing layer;
- a light shielding layer combined under the film reinforcing layer to form a plurality of protruding structures cooperatively with the film reinforcing layer by a hot pressing process for covering each keycap, wherein the keyboard frame is disposed on the bottom board to make each hole structure jacket the corresponding protruding structure;
- a texture layer attached to a release film and then formed on a top surface and a side surface of each protruding structure after a hot pressing process is performed and the release film is then peeled;
- a waterproof washer disposed around the plurality of keyswitches and disposed on the bottom board, a bottom periphery of the waterproof film and the waterproof washer being sandwiched between the keyboard frame and the bottom board;
- and
- a pattern formed on the texture layer or the light shielding layer.
Dependencies are inferred from the claim text.