US 11,670,225 B2
Display device
Jung Taek Kim, Yongin-si (KR); Sang Su Han, Yongin-si (KR); Kyun Ho Kim, Yongin-si (KR); Hyung Keun Park, Yongin-si (KR); Joon Suk Baik, Yongin-si (KR); and Se Keun Lee, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Mar. 21, 2022, as Appl. No. 17/700,016.
Application 17/700,016 is a continuation of application No. 17/037,089, filed on Sep. 29, 2020, granted, now 11,282,441.
Claims priority of application No. 10-2020-0024900 (KR), filed on Feb. 28, 2020.
Prior Publication US 2022/0208085 A1, Jun. 30, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01); G09G 3/20 (2006.01); G09G 3/3233 (2016.01); G09G 3/36 (2006.01)
CPC G09G 3/32 (2013.01) [G09G 3/2092 (2013.01); G09G 3/3233 (2013.01); G09G 3/36 (2013.01); G09G 3/3648 (2013.01); G09G 2310/0205 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0278 (2013.01); G09G 2310/061 (2013.01); G09G 2310/062 (2013.01); G09G 2320/0252 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/0261 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/043 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/021 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A display device comprising:
pixel blocks each including consecutive pixel rows connected to scan lines, control lines, and data lines, the pixel rows including pixels;
a scan driver configured to supply a scan signal to the scan lines and to supply a control signal to the control lines;
a data driver configured to supply an image data voltage or a low grayscale data voltage to the data lines; and
a power supply configured to supply a reference voltage to the pixels,
wherein a change of the reference voltage is repeated for each of the pixel blocks,
the reference voltage supplied to a first pixel row of each of the pixel blocks is greater than the reference voltage supplied to a last pixel row of each of the pixel blocks in a first scan period,
the reference voltage supplied to the last pixel row of a p-th pixel block, where p is a positive integer, is less than the reference voltage supplied to the first pixel row of a (p+1)-th pixel block, and
the last pixel row of the p-th pixel block and the first pixel row of the (p+1)-th pixel block are adjacent to each other.