US 12,248,217 B2
Display apparatus and light source device thereof with optical dome
Kyungsoo Park, Suwon-si (KR); Sungyeol Kim, Suwon-si (KR); Chunsoon Park, Suwon-si (KR); and Kyehoon Lee, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR)
Filed on Dec. 15, 2023, as Appl. No. 18/540,999.
Application 18/540,999 is a continuation of application No. 17/733,661, filed on Apr. 29, 2022, granted, now 11,874,561.
Application 17/733,661 is a continuation of application No. PCT/KR2021/019016, filed on Dec. 14, 2021.
Claims priority of application No. 10-2021-0000577 (KR), filed on Jan. 4, 2021; and application No. 10-2021-0013117 (KR), filed on Jan. 29, 2021.
Prior Publication US 2024/0248348 A1, Jul. 25, 2024
Int. Cl. G02F 1/1335 (2006.01); H01L 25/075 (2006.01); H01L 33/10 (2010.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01)
CPC G02F 1/133614 (2021.01) [G02F 1/133504 (2013.01); H01L 25/0753 (2013.01); H01L 33/10 (2013.01); H01L 33/502 (2013.01); H01L 33/56 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a printed circuit board (PCB) having a mounting surface,
a light emitting diode (LED) chip mounted on the mounting surface, the LED chip having an optical profile that a larger amount of light is emitted from the LED chip in a lateral direction than in a vertical direction, and
an optical dome covering the LED chip and a portion of the mounting surface adjacent to the LED chip, and
wherein the optical dome satisfies 1.70<r1/r0<1.83, where r0 is a straight distance for light vertically emitted from the LED chip to reach a surface of the optical dome and r1 is a straight distance for maximum output light emitted from the LED chip to reach the surface of the optical dome.