US 11,657,758 B2
Electroluminescent display device and method for driving same
Joon Min Park, Seoul (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Nov. 8, 2021, as Appl. No. 17/521,422.
Claims priority of application No. 10-2020-0177259 (KR), filed on Dec. 17, 2020.
Prior Publication US 2022/0199015 A1, Jun. 23, 2022
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0252 (2013.01); G09G 2330/021 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electroluminescent display device, comprising:
a display panel including a plurality of pixels and each pixel including a light-emitting element driven according to a driving current flowing between a high-level power supply voltage and a low-level power supply voltage; and
a circuit configured to cut off the high-level power supply voltage for a black period in which emission of light from the light-emitting element stops in one frame such that the high-level power supply voltage is not applied to the plurality of pixels, wherein the circuit is configured to cut off the high-level power supply voltage using at least one AND operation between an end signal and a clock signal, the end signal corresponding to the black period.