US 12,254,809 B2
Display device and method of driving the same
Jung Hwan Hwang, Seongnam-si (KR); Hyun Joon Kim, Hwaseong-si (KR); Kye Uk Lee, Seoul (KR); and Jun Ki Jeong, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jan. 25, 2024, as Appl. No. 18/422,988.
Application 18/422,988 is a continuation of application No. 17/810,141, filed on Jun. 30, 2022, granted, now 11,887,525.
Claims priority of application No. 10-2021-0157661 (KR), filed on Nov. 16, 2021.
Prior Publication US 2024/0161676 A1, May 16, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/20 (2006.01); G09G 3/32 (2016.01)
CPC G09G 3/2011 (2013.01) [G09G 3/32 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0819 (2013.01); G09G 2310/027 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0242 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A display device comprising:
pulse-amplitude modulation (PAM) data lines configured to receive PAM data voltages, respectively;
pulse-width modulation (PWM) data lines configured to receive PWM data voltages, respectively; and
a plurality of sub-pixels respectively connected to the PWM data lines and the PAM data lines, and wherein each of the plurality of sub-pixels is configured to generate a driving current according to one PAM data voltage of the PAM data voltages and one PWM data voltage of the PWM data voltages, and emit a light emitting element according to the driving current, and
wherein a peak current value of the driving current when the sub-pixel is configured to emit the light emitting element corresponding to a low gray level region is smaller than a peak current value of the driving current when the sub-pixel is configured to emit the light emitting element corresponding to a high gray level region higher than the low gray level region.