US 12,345,981 B2
Backlight unit, display device and driving method
Changwoo Lee, Paju-si (KR); SunYoon Kim, Seoul (KR); Min Kim, Seoul (KR); Sanggoo Jeong, Paju-si (KR); and Juyoung Noh, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Nov. 27, 2023, as Appl. No. 18/520,302.
Claims priority of application No. 10-2022-0186422 (KR), filed on Dec. 27, 2022; and application No. 10-2023-0071416 (KR), filed on Jun. 2, 2023.
Prior Publication US 2024/0210758 A1, Jun. 27, 2024
Int. Cl. G02F 1/13357 (2006.01); G02F 1/1335 (2006.01); G09G 3/32 (2016.01)
CPC G02F 1/133612 (2021.01) [G02F 1/133603 (2013.01); G09G 3/32 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/0297 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A display device comprising:
a backlight unit configured to emit light to a display panel; and
a data driver circuit configured to drive the backlight unit, wherein the backlight unit comprises:
a light source array including a first light source that is electrically connected between a first light emitting node and a second light emitting node; and
a light source driver circuit configured to drive the light source array, the light source driver circuit comprising:
a driving transistor electrically connected between the light source array and a driving voltage node to which a driving voltage is supplied; and
a sensing multiplexer (MUX) circuit electrically connected to the first light emitting node and the second light emitting node.