公开(公告)号：US09601077B2

公开(公告)日：2017-03-21

申请号：US14165942

申请日：2014-01-28

Applicant: Samsung Display Co., LTD.

Inventor： Woon-Yong Lim ,  Tong-Ill Kwak ,  Min-Ho Park ,  Yong-Jin Shin ,  Tae-Gwang Jung ,  Bong-Kyun Jo ,  Ki-Hyun Pyun

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G3/3655

Abstract: A circuit includes a reference signal generating part configured to generate a plurality of reference signals having levels different from each other, a comparing part configured to compare a ripple signal with the reference signals to determine a level of the ripple signal, a compensating signal generating part configured to generate a compensation ripple signal corresponding to the level of the ripple signal, where the compensation ripple signal has a phase opposite to the ripple signal, and a push-pull circuit configured to stabilize the compensation ripple signal.