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.

Date of Patent:
Jan. 12, 2010

Filed:

Oct. 31, 2006
Applicants:

Jeong-il Kang, Yongin-si, KR;

Sang-hoon Lee, Ulsan, KR;

Yung-jun Park, Yongin-si, KR;

Inventors:

Jeong-il Kang, Yongin-si, KR;

Sang-hoon Lee, Ulsan, KR;

Yung-jun Park, Yongin-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and method for controlling emission of light are provided. The light emitting apparatus comprises a plurality of first light emitting parts which are connected with each other in series, a first current supply which supplies a current to the plurality of first light emitting parts, a plurality of switches which are respectively connected with the plurality of first light emitting parts in parallel to make the current be transmitted to or bypass the first light emitting parts and a controller which receives brightness information corresponding to the respective first light emitting parts and controls the plurality of first switches to make overall light emitting time of the first light emitting parts within time intervals correspond to a brightness level of the brightness information. The present invention provides an apparatus and method for emitting light by driving a plurality of light emitting parts to independently emit light in various brightness levels with a simplified circuit configuration and improved efficiency.


Find Patent Forward Citations

Loading…