Key structure
AssigneesLite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
InventorsHsin-Chih Liang, Yi-Wen Chen
Life of this patent
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Abstract
A key structure includes a bottom plate, a keycap, a lifting mechanism, a thin-film switch layer and a backlight module. The bottom plate has a through hole. The lifting mechanism is pivotally connected to the bottom plate and the keycap. The thin-film switch layer has a reflective structure corresponding to the through hole. The backlight module includes a light source and a reflective layer. The light source is configured to emit light towards the reflective structure. The reflective layer is disposed surrounding the light source to reflect a reflected light from the reflective structure to the thin-film switch layer.
Claims14
A key structure, comprising:
- a bottom plate having a through hole;
- a keycap;
- a lifting mechanism pivotally connected to the bottom plate and the keycap;
- a thin-film switch layer having a reflective structure corresponding to the through hole;
- and
- a backlight module, comprising:
- a circuit layer;
- a light source disposed on the circuit layer and configured to emit light towards the reflective structure;
- and
- a reflective layer disposed surrounding the light source to reflect a reflected light from the reflective structure to the thin-film switch layer;
- wherein the through hole and the light source overlap along a lifting direction;
- wherein the thin-film switch layer comprises:
- a first layer;
- a second layer;
- and
- a spacer layer disposed between the first layer and the second layer;
- wherein the reflective structure is formed on the first layer or the second layer;
- wherein the first layer or the second layer has a hole exposing the reflective structure.
A key structure, comprising:
- a bottom plate having a through hole;
- a keycap;
- a lifting mechanism pivotally connected to the bottom plate and the keycap;
- a thin-film switch layer having a reflective structure corresponding to the through hole;
- and
- a backlight module, comprising:
- a circuit layer;
- a light source disposed on the circuit layer and configured to emit light towards the reflective structure;
- and
- a reflective layer disposed surrounding the light source to reflect a reflected light from the reflective structure to the thin-film switch layer;
- wherein the through hole and the light source overlap along a lifting direction;
- wherein the reflective structure and the light source do not overlap along the lifting direction of the keycap.
Dependencies are inferred from the claim text.