US 11,721,262 B2
Display driving circuit and display device including the same
Jeeyeon Eom, Hwaseong-si (KR); Jeonghoon Choi, Hwaseong-si (KR); Yeongshin Jang, Gwacheon-si (KR); Youngbae Moon, Seongnam-si (KR); and Woonyoung Lee, Seongnam-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 16, 2022, as Appl. No. 17/745,246.
Claims priority of application No. 10-2021-0066980 (KR), filed on May 25, 2021.
Prior Publication US 2022/0383790 A1, Dec. 1, 2022
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2300/0413 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/0289 (2013.01); G09G 2310/0291 (2013.01); G09G 2330/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display driving circuit comprising:
a plurality of source channels configured to provide data voltages to a plurality of data lines of a display panel, respectively;
at least one dummy channel on one side of at least one of the source channels; and
control logic configured to control operations of the source channels and the at least one dummy channel,
wherein, in response to failure of a first source channel from among the source channels being determined, the control logic is further configured to provide data voltages to data lines corresponding to the first source channel and second source channels, respectively, which are between the first source channel and the at least one dummy channel, using the second source channels and the at least one dummy channel,
wherein the source channels are grouped into a plurality of source groups each comprising N (N is a positive number) source channels,
wherein the at least one dummy channel comprises a dummy group including N dummy channels.