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:
Sep. 12, 2023
Filed:
Mar. 23, 2023
Applicant:
Primax Electronics Ltd., Taipei, TW;
Inventors:
Wei-Ping Chan, Taipei, TW;
Ruey-Piin Wang, Taipei, TW;
Chia-Ming Li, Taipei, TW;
Hung-Wei Kuo, Taipei, TW;
Assignee:
PRIMAX ELECTRONICS LTD., Taipei, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0046 (2013.01); G02B 6/0043 (2013.01); G02B 6/0051 (2013.01); G02B 6/0088 (2013.01);
Abstract
A backlight kit includes a base member, a covering member, a slim-type light guide element and an illumination module. The covering member is combined with the base member. The slim-type light guide element and the illumination module are arranged between the base member and the covering member. After the illumination module emits a light beam to the slim-type light guide element, the light beam is transferred through the slim-type light guide element. Consequently, a luminance gradient region is formed on the surface of the covering member.