Luminous key structure

Abstract

The present invention discloses a luminous key structure. The structure comprises a base, a key cap, a ascending and descending mechanism connecting between the base and the key cap, a light-guiding plate located on the base, a layered circuit board located on the light-guiding plate and a light-shading coating layer. The light-guiding plate is provided with groove(s) located under the key cap. The layered circuit board comprises multiple overlapped structure layers, and the layered circuit board has a first opening hole, wherein the first opening hole is located under the key cap, and the first opening hole is connected with the corresponding groove. A bottom structure layer in the multiple structure layers is provided with bulge part(s), wherein each bulge part extends from a side wall face to the inner side of the key cap, the first opening hole is provided with the side wall face, and the side wall face turns towards the inner side of the key cap. The light-shading coating layer iscoated on the surface, turning towards the base, of the bulge part. When the key cap is pressed, a first connection structure of the key cap enters into the corresponding first opening hole and the corresponding groove to allow the corresponding bulge part to deform elastically, so that the corresponding bulge part enters into the corresponding groove. The luminous key structure has lower height,and the luminous key structure can maintain a considerable degree of light-shading effect.

Description

technical field [0001] The invention relates to a button structure, in particular to a light-emitting button structure. Background technique [0002] Compared with the general button structure, the light-emitting button structure needs to include a light guide plate and a shielding sheet on it. Considering the optical effect, the design of the light guide plate and the shielding sheet will keep the structure intact, but this will limit the reduction of the height of the light-emitting button structure. And if the structure of the light guide plate and the shielding sheet is designed to form an avoidance space to avoid structural interference between the structure and the light guide plate and the shielding sheet when the light-emitting button structure is actuated, the shielding sheet may fail to effectively shield the light guide plate, making the Users may observe light leakage around the keycaps from above the illuminated key structure. Therefore, the current light-emit...

AI Technical Summary

Problems solved by technology

Considering the optical effect, the design of the light guide plate and the shielding sheet will keep the structure intact, but this will limit the reduction of the height of the light-emitting button structure

And if the structure of the light guide plate and the shielding sheet is designed to form an avoidance space to avoid structural interference between the structure and the light guide plate and the shielding sheet when the light-emitting button structure is actuated, the shielding sheet may fail to effectively shield the light guide plate, making the Users may observe light leakage around the keycap from above the illuminated key structure

Therefore, the current light-emitting button structure has the aforementioned difficulties in thinning

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