US 11,928,998 B2
Display device performing multi-frequency driving, and method of operating a display device
Sangan Kwon, Cheonan-si (KR); Soon-Dong Kim, Osan-si (KR); Taehoon Kim, Hwaseong-si (KR); Hui Nam, Suwon-si (KR); Eun Sil Yun, Hwaseong-si (KR); and Changnoh Yoon, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Feb. 13, 2023, as Appl. No. 18/108,838.
Application 18/108,838 is a continuation of application No. 17/202,769, filed on Mar. 16, 2021, granted, now 11,580,886.
Claims priority of application No. 10-2020-0091894 (KR), filed on Jul. 23, 2020.
Prior Publication US 2023/0196959 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/00 (2006.01); G09G 3/3233 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/035 (2020.08) [G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); G09G 2310/027 (2013.01); G09G 2380/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a first partial panel region and a second partial panel region; and
a panel driver which drives the display panel,
wherein the panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region,
wherein, in a case where the second driving frequency is lower than the first driving frequency, a second frame period includes a data writing period for the first partial panel region and a holding period for the second partial panel region, and
wherein the panel driver provides data voltages to the first partial panel region during the data writing period, and provides a blank voltage different from a black data voltage to the second partial panel region during the holding period.