Slim keypad structure and electronic device using the same
AssigneesLite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
InventorHsiao-Lung Chiang
Life of this patent
Estimating the term…
Abstract
A slim key includes a supporting plate, at least one key cap, at least one dome and a light-permeable circuit board. The supporting plate is disposed above the circuit board and has at least one frame part. Each frame part is formed with a light-permeable hole at a central portion thereof. The key pad is disposed on the top surface of the frame part correspondingly. The circuit board has at least one conductive circuit formed thereon under the dome correspondingly. The dome is correspondingly disposed between the frame part and the circuit board. According to one embodiment, the instant disclosure also provides an electronic device with the slim keypad structure.
Claims15
A slim keypad structure, comprising:
- a supporting plate, having at least one frame portion, each frame portion having a front bar, a rear bar and a pair of side bars respectively connected with two ends of the front bar and the rear bar, and formed with a light-pervious opening at a central portion thereof;
- at least one key cap, disposed on a top surface of the frame portion correspondingly, wherein each key cap includes two pairs of hooks formed on a bottom surface thereof to engage with the side bars of the frame portion, and a pair of resting portions on the bottom surface thereof;
- each pair of the hooks protruded to each other and engaging with two side edges of each side bar, and the pair of resting portions respectively against a top surface of the front bar and the rear bar, so as to clamp the frame portion between the hooks and the resting portions of the key cap;
- at least one dome, disposed under the frame portion correspondingly;
- a light-penetrable circuit board, having at least one conducted circuit correspondingly formed under the dome, wherein the supporting plate is arranged above the circuit board with an interval.
An electronic device with slim keypad structure, comprising
- a slim keypad structure including:
- a supporting plate having at least one frame portion, each frame portion having a front bar, a rear bar and a pair of side bars respectively connected with two ends of the front bar and the rear bar, and formed with a light-pervious opening at a central portion thereof;
- at least one key cap, disposed on a top surface of the frame portion correspondingly, wherein each key cap includes two pairs of hooks formed on a bottom surface thereof to engage with the side bars of the frame portion, and a pair of resting portions on the bottom surface thereof;
- each pair of the hooks protruded to each other and engaging with two side edges of each side bar, and the pair of resting portions respectively against a top surface of the front bar and the rear bar, so as to clamp the frame portion between the hooks and the resting portions of the key cap;
- at least one dome, disposed under the frame portion correspondingly;
- a light-penetrable circuit board, having at least one conducted circuit correspondingly formed under the dome, wherein the supporting plate is arranged above the circuit board with an interval;
- and
- a displaying element, displaying at least one symbol, wherein the symbol is shown on a top surface of the key cap through the circuit board and the light-pervious opening of the supporting plate.
Dependencies are inferred from the claim text.