US 11,876,151 B2
Light emitting device, light emitting diode package, backlight unit, and liquid crystal display
Eun Ju Kim, Ansan-si (KR)
Assigned to Seoul Semiconductor Co., Ltd., Ansan-si (KR)
Filed by Seoul Semiconductor Co., Ltd., Ansan-si (KR)
Filed on Oct. 1, 2022, as Appl. No. 17/958,383.
Application 17/958,383 is a continuation of application No. 17/110,293, filed on Dec. 3, 2020, granted, now 11,462,663.
Application 17/110,293 is a continuation of application No. 17/095,066, filed on Nov. 11, 2020, granted, now 11,621,376.
Application 17/095,066 is a continuation of application No. PCT/KR2019/007103, filed on Jun. 12, 2019.
Claims priority of provisional application 62/702,445, filed on Jul. 24, 2018.
Claims priority of provisional application 62/697,552, filed on Jul. 13, 2018.
Claims priority of provisional application 62/697,078, filed on Jul. 12, 2018.
Prior Publication US 2023/0022191 A1, Jan. 26, 2023
Int. Cl. H01L 33/46 (2010.01); G02F 1/13357 (2006.01); H01L 25/075 (2006.01); H01L 33/42 (2010.01); H01L 33/50 (2010.01); H01L 33/54 (2010.01); H01L 33/56 (2010.01); H01L 33/58 (2010.01); H01L 33/60 (2010.01); H01L 33/62 (2010.01); G02F 1/1335 (2006.01)
CPC H01L 33/46 (2013.01) [G02F 1/133603 (2013.01); G02F 1/133605 (2013.01); G02F 1/133607 (2021.01); G02F 1/133614 (2021.01); H01L 25/0753 (2013.01); H01L 33/42 (2013.01); H01L 33/502 (2013.01); H01L 33/505 (2013.01); H01L 33/54 (2013.01); H01L 33/56 (2013.01); H01L 33/58 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01); H01L 2933/005 (2013.01); H01L 2933/0025 (2013.01); H01L 2933/0041 (2013.01); H01L 2933/0091 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a display panel; and
a backlight configured to provide light toward the display panel, the backlight comprising:
a circuit board;
an optical layer disposed on the circuit board;
at least one light emitter disposed between the circuit board and the optical layer, the light emitter comprising:
a light emitting structure disposed on the circuit board and having a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer disposed between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer;
a first electrode pad electrically connected to the first conductivity type semiconductor layer of the light emitting structure; and
a second electrode pad electrically connected to the second conductivity type semiconductor layer of the light emitting structure;
a reflector disposed on the light emitting structure;
a light transmitting layer disposed on the circuit board and contacting the light emitter; and
a dam disposed on the circuit board and surrounding the light emitter, wherein the dam has a portion having a curved shape.