Light emitting device and current control module thereof

(19)

(11)

EP 2 800 458 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.11.2015 Bulletin 2015/47

(43)	Date of publication A2:
	05.11.2014 Bulletin 2014/45

(21)	Application number: 14165898.9

(22)	Date of filing: 24.04.2014

(51)

International Patent Classification (IPC):

H05B 33/08^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

(30)

Priority:

29.04.2013 TW 102207860

(71)	Applicant: Macroblock, Inc.
	Hsinchu 30072 (TW)

(72)	Inventors:
	Yang, Li-Chang 30072 Hsinchu (TW) Liu, Hsing-Fu 30072 Hsinchu (TW) Chen, Jyun-Ji 30072 Hsinchu (TW) Yen, Chia-I 30072 Hsinchu (TW)

(74)	Representative: Ilgart, Jean-Christophe et al
	BREVALEX 95, rue d'Amsterdam 75378 Paris Cedex 8 75378 Paris Cedex 8 (FR)

(54)	Light emitting device and current control module thereof

(57) A light emitting device (1) includes a processing unit (5), an adjusting unit (6), and first and second light emitting units (7, 8) that emit light in response to a current received thereby. The processing unit (5) receives a control signal and outputs an operation signal associated therewith. The adjusting unit (6) receives the operation signal and a reference input, and outputs adjusted currents to the light emitting units (7, 8) in response to the operation signal. A sum of magnitudes of the adjusted currents is associated with the reference input. Lights emitted by the first and second light emittingunits (7, 8) have different color temperatures.

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