Key structure
AssigneeLite-On Technology Corporation
InventorMing-Fu YEN
Life of this patent
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Abstract
A key structure is provided. The key structure includes a base plate, a membrane switch circuit, a key cap and a balance bar. The base plate includes a mounting portion. The membrane switch circuit is arranged on the base plate. The key cap is disposed above the membrane switch circuit. The balance bar is arranged between the base plate and the key cap. The balance bar includes a rod body and a first link part, the rod body is connected to the key cap, and the first link part is pivotally arranged corresponding to the mounting portion and connected to the base plate. An opaque area is formed in the overlap range of the orthographic projection of the membrane switch circuit and the key cap.
Claims16
A key structure, comprising:
- a base plate comprising a mounting portion;
- a membrane switch circuit arranged on the base plate;
- a key cap disposed above the membrane switch circuit;
- and
- a balance bar arranged between the base plate and the key cap, the balance bar comprises a rod body and a first link part, the rod body is connected to the key cap, and the first link part is pivotally arranged corresponding to the mounting portion and connected to the base plate,
- wherein, an opaque area is formed in an overlap range of an orthographic projection of the membrane switch circuit and the key cap.
Dependencies are inferred from the claim text.