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US 8,119,938 B2Granted
Touch keypad assembly
AssigneeHon Hai Precision Inc. Co., Ltd.
InventorsHsin-Hsien Yu, Yao-Pang Lu, Chao-Chang Li
Life of this patent
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Abstract
A touch keypad assembly (100) includes a main board (10), a metal dome (40) disposed on a predetermined position of the main board, a touchpad layer (30) disposed on the metal dome, a keypad cover (20) disposed over the touchpad layer, and a light guide film (60) disposed between the metal dome and the keypad cover. The touchpad layer is a flexible printed circuit board.
Claims9
A touch keypad assembly, comprising:
- a main board;
- a metal dome disposed on a predetermined position of the main board;
- and
- a keypad disposed over the metal dome for applying a force on the metal dome and being used as a touchpad according to a mode selection;
- wherein the keypad comprises a touchpad layer disposed on the metal dome, a keypad cover disposed over the touchpad layer, and a light guide film disposed between the metal dome and the keypad cover;
- wherein
- the light guide film is disposed over the touchpad layer.
4 more elements
An electronic device, comprising:
- a housing;
- a touch keypad assembly disposed in the housing, the touch keypad assembly comprising:
- a main board;
- a metal dome disposed on a predetermined position on the main board;
- and
- a touchpad layer disposed over the metal dome for applying a force on the metal dome;
- a keypad cover disposed over the touchpad layer;
- and
- a light guide film disposed between the touchpad layer and the keypad cover.
6 more elements
A touch keypad assembly, comprising:
- a main board;
- a metal dome disposed on a predetermined position of the main board;
- and
- a keypad disposed over the metal dome for applying a force on the metal dome and being used as a touchpad according to a mode selection;
- wherein the keypad comprises a touchpad layer disposed on the metal dome, a keypad cover disposed over the touchpad layer, and a light guide film disposed between the metal dome and the touchpad layer;
- wherein
- said touchpad layer defines a plurality of through holes to allow light from the light guide film to pass toward the keypad cover.
4 more elements
Dependencies are inferred from the claim text.