Patent ID: 9018554
Filing Date: 2015-04-28
Classification: H01H

Abstract:
1. A luminescent keyswitch module comprising: a base plate having a through hole; a keyswitch disposed on the base plate; a light guide plate disposed under the base plate and having an accommodating space, wherein the accommodating space is communicated with the through hole; a light source passing through the through hole and accommodated in the accommodating space, the light source having a first light exit surface and emitting light from the first light exit surface, and the light leaving the first light exit surface having a first divergence angle; a diffusion structure accommodated in the accommodating space and located between the light source and the light guide plate, the diffusion structure having a light entrance surface and a second light exit surface, the light leaving the first light exit surface then entering the diffusion structure from the light entrance surface and leaving the diffusion structure from the second light exit surface, wherein the light leaving the second light exit surface has a second divergence angle, and the second divergence angle is larger than the first divergence angle, wherein the shape of the diffusion structure substantially matches the accommodating space, and the light source is sleevedly disposed in the diffusion structure; and a reflector disposed under the light guide plate, so as to reflect the light to sequentially pass through the light guide plate and the base plate to the keyswitch.