US 12,336,102 B2
Backlight unit and display device
Suhun Lee, Gyeonggi-do (KR); and MyungJoon Park, Gyeonggi-do (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Jul. 12, 2023, as Appl. No. 18/351,423.
Claims priority of application No. 10-2022-0113251 (KR), filed on Sep. 7, 2022.
Prior Publication US 2024/0080985 A1, Mar. 7, 2024
Int. Cl. H05K 1/18 (2006.01); G09G 3/32 (2016.01); H05K 3/00 (2006.01)
CPC H05K 1/181 (2013.01) [G09G 3/32 (2013.01); H05K 3/0044 (2013.01); H05K 2201/10106 (2013.01); H05K 2201/10128 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel; and
a backlight unit supplying light to the display panel,
wherein the backlight unit includes:
a printed circuit including a base layer, a wiring layer on the base layer, and a cover layer on the wiring layer;
a plurality of light sources on the printed circuit; and
a reflector positioned on the printed circuit and including a plurality of holes positioned corresponding to the plurality of light sources,
wherein at least a portion of the cover layer is removed in an area overlapping each of the plurality of holes to expose the base layer, and wherein in an area corresponding to the plurality of holes, an area where the base layer is exposed is larger than an area of the cover layer.