US 12,009,348 B2
Light emitting device and lighting system having the same
Gundula Roth, Levenhagen (DE); Walter Tews, Greifswald (DE); and Chung-Hoon Lee, Ansan-si (KR)
Assigned to Seoul Semiconductor Co., Ltd., Ansan-si (KR)
Filed by Seoul Semiconductor Co., Ltd., Ansan-si (KR)
Filed on May 2, 2022, as Appl. No. 17/735,047.
Application 17/735,047 is a continuation of application No. 15/435,980, filed on Feb. 17, 2017, granted, now 11,322,484.
Application 15/435,980 is a continuation of application No. 12/295,438, granted, now 9,576,939, issued on Feb. 21, 2017, previously published as PCT/KR2007/001587, filed on Mar. 31, 2007.
Claims priority of application No. 10-2006-0029517 (KR), filed on Mar. 31, 2006.
Prior Publication US 2022/0262776 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 25/075 (2006.01); C09K 11/77 (2006.01); H01L 33/50 (2010.01); H05B 33/14 (2006.01); H05B 45/00 (2022.01); H05B 45/20 (2020.01); H05B 45/40 (2020.01); H05B 47/16 (2020.01); F21K 9/00 (2016.01)
CPC H01L 25/0753 (2013.01) [C09K 11/77342 (2021.01); C09K 11/7735 (2013.01); C09K 11/7738 (2013.01); H01L 33/504 (2013.01); H05B 33/14 (2013.01); H05B 45/00 (2020.01); H05B 45/20 (2020.01); H05B 45/40 (2020.01); H05B 47/16 (2020.01); F21K 9/00 (2013.01); H01L 33/50 (2013.01); H01L 2924/0002 (2013.01); Y02B 20/00 (2013.01); Y02B 20/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a base plate; and
a plurality of dots disposed on the base plate and including a plurality of first dots and a plurality of second dots,
wherein:
each first dot of the plurality of first dots includes a first light emitter comprising a first light emitting chip and a first phosphor configured to combine with the first light emitting chip to emit a first light spectrum;
each second dot of the plurality of second dots includes a second light emitter comprising a second light emitting chip and a second phosphor configured to combine with the second light emitting chip to emit a second light spectrum;
the first light emitter and the second light emitter are disposed on the base plate;
each of the plurality of first dots and each of the plurality of second dots are arranged alternately with one another;
the first light emitting chip and the second light emitting chip are configured to emit light with a peak wavelength of blue or ultraviolet (UV) light;
a relative intensity of light at the peak wavelength of the first light emitting chip in an emission spectrum of the first light emitter is higher than a relative intensity of light at the peak wavelength of the second light emitting chip in an emission spectrum of the second light emitter; and
the relative intensity of light at the peak wavelength of the second light emitting chip in the emission spectrum of the second emitter is lower than a maximum intensity of light within a wavelength range of green light in the emission spectrum of the second emitter or a maximum intensity of light within wavelength range of red light in the emission spectrum of the second emitter.