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US 7,547,857 B2Granted
Keypad assembly for portable terminal
AssigneeSamsung Electronics Co., Ltd.
InventorsSang-Yul Kim, Bum-Lai Cho
Life of this patent
Estimating the term…
Abstract
A keypad assembly for a portable terminal includes a first keypad assembly including a substrate formed with openings, and a second keypad assembly including a stick which extends through the substrate. The stick is substantially coplanar with keys on the first keypad.
Claims17
A keypad assembly, comprising:
- a first keypad assembly comprising a first substrate having a first opening;
- and
- a second keypad assembly comprising a second substrate and a single stick, the single stick being disposed on the second substrate,
- wherein the single stick extends through the first opening, and the second substrate contacts directly a lower surface of the first substrate,
- wherein the single stick extends through the first opening, and the second substrate contacts directly a lower surface of the first substrate,
- wherein the second substrate comprises a second printed circuit board and a second metal dome disposed on a lower surface of the second printed circuit board, and
- wherein the second metal dome convexly protrudes downward from the lower surface of the second printed circuit board.
4 more elements
A keypad assembly for a portable terminal, comprising:
- a first printed circuit board;
- a plurality of first metal domes convexly protruding upward from an upper surface of the first printed circuit board;
- a first keypad comprising a plurality of keys arranged on an upper surface of the first keypad, and a first actuator disposed on a lower surface of the first keypad while facing the first metal domes;
- a second printed circuit board disposed on a lower surface of the first printed circuit board;
- a second metal dome convexly protruding downward from a lower surface of the second printed circuit board;
- a housing comprising a second actuator disposed on an upper surface of the housing so as to face the second metal dome, the housing being disposed on the first printed circuit board so as to substantially cover the second printed circuit board;
- and
- a stick disposed on the second printed circuit board, the stick extending through the first printed circuit board to be adjacent to the keys.
5 more elements
Dependencies are inferred from the claim text.