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:
Oct. 11, 2016
Filed:
Sep. 19, 2014
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-do, KR;
Kyu Cheol Kang, Suwon-Si, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A light emitting device includes a light source unit, a connection controller, and a driving controller. The light source unit includes a first LED array including a plurality of first LEDs connected in series and a second LED array including a plurality of second LEDs connected in series. The connection controller selectively sets a connection structure between the first and second LED arrays as a series connection, a parallel connection, or a series-parallel connection based on a peak value of a driving voltage driving the light source unit. The driving controller controls the number of LEDs driven in the light source unit according to a magnitude of the driving voltage. Each of the first and second LED arrays is connected between a plurality of first nodes and a plurality of second nodes.