Patent ID: 11923156
Assignee: DARFON ELECTRONICS CORP.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC F  H

Claim 0:
1. A lighting keyboard comprising:
a back light module comprising:
a lighting unit;
a light guide plate having an opening used to accommodate the lighting unit;
a light penetrating membrane disposed on the light guide plate;
a light calibration layer disposed on the light penetrating membrane and having a second contour; and
an adhering component having a first contour greater than the second contour, the adhering component being disposed between the light guide plate and the light penetrating membrane, the adhering component comprising:
a front region fully covered by the light calibration layer;
a rear region partly covered or not covered by the light calibration layer; and
a hollow region, a position of the hollow region corresponding to a position of the opening and a size of the hollow region being greater than a size of the opening; and

a plurality of keyswitches disposed on the back light module.