Patent ID: 11861079
Assignee: PRIMAX ELECTRONICS LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC F  G

Claim 7:
8. A luminous touch pad module, comprising:
a touch member;
a printed circuit board located under the touch member;
a first light guide plate arranged between the touch member and the printed circuit board;
a second light guide plate arranged between the touch member and the first light guide plate;
a flexible touch sensing circuit board arranged between the touch member and the second light guide plate, wherein the flexible touch sensing circuit board is electrically connected with the printed circuit board;
at least one first light-emitting element located over the printed circuit board, wherein the at least one first light-emitting element is aligned with the first light guide plate;
a first light-guiding element arranged around the printed circuit board, the first light guide plate, the second light guide plate and the at least one first light-emitting element; and
at least one second light-emitting element located under the printed circuit board, wherein the at least one second light-emitting element is aligned with the first light-guiding element,
wherein a light beam emitted by the at least one first light-emitting element is transmitted to the touch member through the first light guide plate, and a light beam emitted by the at least one second light-emitting element is transmitted to the touch member through the first light-guiding element and the second light guide plate sequentially.