Keycap, method of manufacturing the same and key structure
AssigneePrimax Electronics Ltd.
InventorsChe-An Li, Lei-Lung Tsai
Life of this patent
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Abstract
The present disclosure provides a keycap, including: a light-guiding microstructure layer made of a first material, the light-guiding microstructure layer including a base layer and a plurality of microstructures disposed on a lower surface of the base layer; and a light-transmitting layer disposed over the light-guiding microstructure layer and in contact with the base layer, the light-transmitting layer being made of a second material different from the first material. The present disclosure further provides a method of manufacturing the above-mentioned keycap and a key structure including the above-mentioned keycap.
Claims10
A keycap, comprising:
- a light-guiding microstructure layer made of a first material, the light-guiding microstructure layer comprising a base layer and a plurality of microstructures disposed on a lower surface of the base layer;
- a light-transmitting layer disposed on the light-guiding microstructure layer and in contact with the base layer, the light-transmitting layer being made of a second material different from the first material;
- and
- a topcoat layer, disposed over and covering the light-transmitting layer, wherein the topcoat layer has a least one through opening, and vertical projection of the light-guiding microstructure layer is greater than a vertical projection of the at least one through opening, and the vertical projection of the light-guiding microstructure layer is at least partially overlapped with the vertical projection of the at least one through opening.
A method of manufacturing a keycap, comprising:
- sequentially performing a first injection molding process and a second injection molding process to form a light-transmitting layer and a light-guiding microstructure layer, respectively, or to form a light-guiding microstructure layer and a light-transmitting layer, respectively, wherein the light-guiding microstructure layer comprises a base layer and a plurality of microstructures disposed on a lower surface of the base layer, and the light-transmitting layer is disposed on the light-guiding microstructure layer and in contact with the base layer;
- and
- forming a topcoat layer over and covering the light-transmitting layer, wherein the topcoat layer has at least one through opening, and a vertical projection of the light-guiding microstructure layer is greater than a vertical projection of the at least one through opening, and the vertical projection of the light-guiding microstructure layer is at least partially overlapped with the vertical projection of the at least one through opening.
Dependencies are inferred from the claim text.