US 12,148,341 B2
Display driving circuit and method of operating same
Wonseok Kim, Seongnam-si (KR); Woonyoung Lee, Seongnam-si (KR); and Yeongshin Jang, Gwacheon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si Gyeonggi-do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Aug. 31, 2023, as Appl. No. 18/241,177.
Application 18/241,177 is a continuation of application No. 17/589,997, filed on Feb. 1, 2022, granted, now 11,769,436.
Claims priority of application No. 10-2021-0021140 (KR), filed on Feb. 17, 2021; and application No. 10-2021-0066824 (KR), filed on May 25, 2021.
Prior Publication US 2023/0410708 A1, Dec. 21, 2023
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2310/0275 (2013.01); G09G 2310/08 (2013.01); G09G 2330/021 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A display driving circuit comprising:
a controller configured to time-divisionally generate a first selection signal and a second selection signal corresponding to a plurality of voltage ranges;
a data switching circuit configured to receive the first selection signal and the second selection signal and provide an image signal;
the data switching circuit further configured to turn on a first switch during a first period in response to the first selection signal and a second switch during a second period in response to the second selection signal,
a data driver including a plurality of driving units and configured to generate the image signal on the basis of image data from the controller; and
a plurality of output pads for connecting to a plurality of pixel groups through a plurality of data lines,
wherein the first selection signal and the second selection signal are within a first voltage range, and
wherein the first switch and the second switch are connected to one of the driving units and to a first and second output pad of the plurality of output pads, respectively.