US 12,287,507 B2
Illuminated keyboard and backlight module
Yi-Wen Chen, Taipei (TW)
Assigned to Lite-On Technology Corporation, Taipei (TW)
Filed by Lite-On Technology Corporation, Taipei (TW)
Filed on Apr. 17, 2024, as Appl. No. 18/637,465.
Application 18/637,465 is a continuation of application No. 17/939,994, filed on Sep. 8, 2022.
Claims priority of provisional application 63/242,498, filed on Sep. 10, 2021.
Prior Publication US 2024/0264358 A1, Aug. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/005 (2013.01) 18 Claims
OG exemplary drawing
 
1. An illuminated keyboard, comprising:
a keyboard module, comprising:
a bracket; and
at least one first key cap, disposed above the bracket;
a circuit board, the circuit board has a first surface facing towards the at least one first key cap and a second surface facing away from the at least one first key cap, at least one top-emitting element is disposed on the first surface, and at least one side-emitting element is disposed on the second surface; and
a backlight module, disposed below the keyboard module and comprising:
a light guide plate having a slot; wherein the at least one side-emitting element extends into the slot such that the light emitted from the at least one side-emitting element enters the light guide plate, the light passes through a light output zone of the bracket and illuminate the at least one first key cap.