Backlit key structure bottom plate with separately formed protrusions
AssigneesLite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
InventorsMing-Fu Yen, Hsiang-Sheng Chuang
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Abstract
A key structure including a keycap, a bottom plate, a backlight module, and a thin film circuit board is provided. The bottom plate includes a body and a plurality of protrusions, wherein the body has a plurality of openings, and the protrusions protrude from a first surface of the body and are disposed around the openings. The backlight module is disposed on a second surface of the body, wherein the first surface and the second surface are opposite surfaces. The thin film circuit board and the keycap are disposed on the first surface of the body, and the thin film circuit board is located between the keycap and the bottom plate, and the protrusions are located within an orthographic projection range of the keycap.
Claims15
A key structure, comprising:
- a keycap;
- a bottom plate, comprising a body and a plurality of protrusions, wherein the body has a plurality of openings, and the protrusions protrude from a first surface of the body and are disposed around the openings;
- a supporting element, disposed on the bottom plate;
- a backlight module, disposed on a second surface of the body, wherein the first surface and the second surface are opposite surfaces;
- and
- a thin film circuit board, disposed on the first surface of the body and located between the keycap and the bottom plate,
- wherein the protrusions are located within an orthographic projection range of the keycap, and the protrusions do not contact the supporting element.
A key structure, comprising:
- a keycap;
- a bottom plate located below the keycap, comprises at least one opening;
- at least two protrusions, disposed around the bottom plate opening and extending toward the keycap, and an assembly region being defined by the protrusions;
- a supporting element, disposed on the bottom plate and located inside the assembly region;
- and
- a backlight module, disposed below the bottom plate;
- wherein the protrusions do not contact the supporting element.
Dependencies are inferred from the claim text.