Key structure with scissors-type connecting member
AssigneePrimax Electronics Ltd.
InventorsChuang-Shu Jhuang, Hsiang-Wen Cheng
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Abstract
A key structure includes a keycap, a scissors-type connecting element, a membrane module, a light-emitting element and a base plate. The light-emitting element is used for emitting light beams. The keycap has a protrusion structure for blocking the light beams and preventing the light beams from leaking out through the gap between said keycap and said base plate. The base plate has a slot corresponding to the protrusion structure. When the keycap is depressed, the membrane module is pressed by the protrusion structure to be subject to deformation, so that a deformed part of the membrane module is inserted into the slot of the base plate. In such way, the hand feel of depressing the keycap is not adversely affected.
Claims10
A key structure with a scissors-type connecting member, said key structure comprising:
- a base plate;
- a keycap having a light-transmissible region and an extension sidewall, wherein said light-transmissible region is located at a surface of said keycap, said extension sidewall is located at a periphery of said keycap, and a protrusion structure located at a first side and a second side of said extension sidewall and extending downward beyond a bottom of said extension side wall;
- said scissors-type connecting element arranged between said base plate and said keycap for connecting said base plate and said keycap, and allowing said keycap to be moved upwardly and downwardly relative to said base plate;
- and
- a light-emitting element disposed under said keycap for emitting light beams, wherein when said light beams are directed to said keycap, first portions of said light beams are transmitted through said light-transmissible region to illuminate said keycap, and second portions of said light beams are blocked by said protrusion structure to avoid light leakage.
Dependencies are inferred from the claim text.