US 11,854,453 B2
Display driving circuit, display device including the same, and method of driving display device
Hyun Chang Kim, Yongin-si (KR); and Se Byung Chae, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jan. 26, 2023, as Appl. No. 18/160,265.
Application 18/160,265 is a continuation of application No. 17/412,609, filed on Aug. 26, 2021, granted, now 11,587,487.
Claims priority of application No. 10-2021-0002884 (KR), filed on Jan. 8, 2021.
Prior Publication US 2023/0177995 A1, Jun. 8, 2023
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2310/0267 (2013.01); G09G 2310/0275 (2013.01); G09G 2310/08 (2013.01)] 15 Claims
OG exemplary drawing
 
12. A display device comprising:
a pixel part including pixels which display an image; and
a display driving circuit which provides the pixel part with data signals corresponding to the image, and outputs a clock signal which controls output timings of the data signals, the display driving circuit comprising:
a clock signal generator which generates the clock signal at a frequency in response to a frequency control signal;
a frequency variation determiner which determines a frequency variation of the clock signal, based on the frequency of the clock signal and a target frequency, in at least one frequency change section; and
a frequency controller which generates the frequency control signal which updates the frequency of the clock signal, based on the frequency variation of the clock signal, and provides the frequency control signal to the clock signal generator,
wherein the frequency variation of the clock signal is different for each of the at least one frequency change section.