The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2010
Filed:
Nov. 23, 2007
Applicants:
Li-kun Chou, Taipei, TW;
Pai-chen Chieh, Taipei, TW;
Yung-fu Wu, Taipei, TW;
Yu-nan Liu, Taipei, TW;
Inventors:
Li-Kun Chou, Taipei, TW;
Pai-Chen Chieh, Taipei, TW;
Yung-Fu Wu, Taipei, TW;
Yu-Nan Liu, Taipei, TW;
Assignee:
Lite-On Technology Corp., Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lighting module adapted for use in a keypad device includes a circuit substrate board, a transparent light guide plate stacked on the circuit substrate board, and at least one light emitting diode embedded in the light guide plate and connected electrically to the circuit substrate board. By having the light emitting diode embedded in the light guide plate, the overall thickness of the lighting module can be reduced to permit miniaturization.