US 12,298,552 B2
Backlight unit and display apparatus having the same
Seung Ri Choi, Ansan-si (KR); Eun Ju Kim, Ansan-si (KR); and Hee Soo Lim, Ansan-si (KR)
Assigned to Seoul Semiconductor Co., Ltd., Ansan-si (KR)
Filed by Seoul Semiconductor Co., Ltd., Ansan-si (KR)
Filed on Apr. 29, 2024, as Appl. No. 18/649,737.
Application 18/649,737 is a continuation of application No. 18/087,812, filed on Dec. 23, 2022, granted, now 12,019,266.
Application 18/087,812 is a continuation of application No. 17/194,286, filed on Mar. 7, 2021, granted, now 11,536,893, issued on Dec. 27, 2022.
Application 17/194,286 is a continuation of application No. PCT/KR2019/011357, filed on Sep. 3, 2019.
Claims priority of provisional application 62/731,229, filed on Sep. 14, 2018.
Prior Publication US 2024/0280742 A1, Aug. 22, 2024
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0068 (2013.01) [G02B 6/0016 (2013.01); G02B 6/003 (2013.01); G02B 6/0031 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light emitting device comprising:
a substrate;
a light emitter disposed on the substrate and configured to emit light;
a reflector disposed on the substrate and configured to reflect light emitted from the light emitter; and
a light guide disposed on the substrate and contacting side and upper surfaces of the light emitter,
wherein the light emitter includes a first contact electrode and a second contact electrode,
wherein the substrate includes a first pad electrode electrically connected to the first contact electrode and a second pad electrode electrically connected to the second contact electrode,
wherein a first gap between the first pad electrode and the second pad electrode is different from a second gap between the first contact electrode and the second contact electrode, and
wherein the light guide includes a region having a greater thickness than the first gap between the first pad electrode and the second pad electrode.