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US 12,198,876 B2Granted
Key structure
AssigneeLite-On Technology Corporation
InventorsChun-Chieh Huang, Ming-Fu Yen, Che Hung Wu, Juo-Tau Lee, Ta-Ching Lu, Chieh-Liang Hsiao, Wei-Pin Chuang
Life of this patent
Estimating the term…
Abstract
A key structure including a first electrode, a key cap, and a restoration member is provided. The key cap is disposed on the first electrode. The restoration member is disposed between the key cap and the first electrode. The key cap or the restoration member has a second electrode. A sensing signal is generated by the second electrode with the key cap or the restoration member moving relative to the first electrode.
Claims24
A key structure, comprising:
- a first electrode;
- a key cap, disposed on the first electrode;
- and
- a restoration member, disposed between the key cap and the first electrode, wherein the key cap or the restoration member has a second electrode, and a sensing signal is generated by the second electrode with a movement of the key cap or the restoration member relative to the first electrode,
- wherein the restoration member is an elastic member having a protrusion facing the first electrode and a recess corresponding to a central portion of the elastic member, and an opening of the recess defined by the protrusion faces the first electrode.
2 more elements
A key structure, comprising:
- an electrode layer;
- a key cap, disposed on the electrode layer, wherein the key cap comprises a conductive material;
- an insulative base plate, disposed on the electrode layer and located between the key cap and the electrode layer, wherein the insulative base plate is provided with a first surface and an opposite second surface;
- an elastic member, disposed between the key cap and the insulative base plate;
- a connection assembly, disposed between the key cap and the electrode layer;
- a positioning member extending from the second surface to the first surface, wherein the positioning member is disposed around and separated from the elastic member, one end of the connection assembly is connected to the positioning member and another end of the connection assembly is connected to the key cap;
- and
- a backlight module, wherein the electrode layer is disposed between the insulative base plate and the backlight module, the key cap has a light transmission portion, the electrode layer has a first light transmission opening corresponding to the light transmission portion, and the insulative base plate has a second light transmission opening partially overlapping the first light transmission opening.
5 more elements
A key structure, comprising:
- an electrode layer;
- a key cap, disposed on the electrode layer;
- an elastic member, disposed between the key cap and the electrode layer;
- and
- a connection assembly, disposed between the key cap and the electrode layer, wherein the elastic member and the connection assembly are separate members and the connection assembly has electrical conductivity, and wherein conductive particles are added to the connection assembly, so that the connection assembly sinks to reduce a distance from the electrode layer to generate a trigger signal.
2 more elements
A key structure, comprising:
- an electrode layer;
- a key cap, disposed on the electrode layer, wherein a material of the key cap comprises conductive particles, metal, transparent conductive oxide, carbon nanotube, or graphene, so that the key cap moves relative to the electrode layer to generate a sensing signal;
- a restoration member, disposed between the key cap and the electrode layer;
- and
- an optical switch module, disposed on the electrode layer and located between the key cap and the electrode layer, wherein the optical switch module is located at a side of the electrode layer facing the key cap.
2 more elements
A key structure, comprising:
- an electrode layer;
- a key cap, disposed on the electrode layer, wherein the key cap comprises a conductive material;
- an insulative base plate, disposed on the electrode layer and located between the key cap and the electrode layer, wherein the insulative base plate is provided with a first surface and an opposite second surface;
- an elastic member, disposed between the key cap and the insulative base plate;
- a connection assembly, disposed between the key cap and the electrode layer;
- a positioning member extending from the second surface to the first surface, wherein the positioning member is disposed around and separated from the elastic member, one end of the connection assembly is connected to the positioning member and another end of the connection assembly is connected to the key cap;
- and
- a light source, electrically connected to the electrode layer, wherein the elastic member has an accommodating space, and the light source is located in the accommodating space, when the key structure is pressed, the elastic member does not interfere with the light source.
5 more elements
Dependencies are inferred from the claim text.