公开(公告)号：US20170270863A1

公开(公告)日：2017-09-21

申请号：US15362946

申请日：2016-11-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dong Wook SUH ,  Chang Hee SHIN ,  Hong Keun YUNE ,  Seong Min CHEON

IPC: G09G3/3258 ,  G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3291 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/08

Abstract: A display driving device includes a digital-to-analog converter generating analog image data, a plurality of pads connected to a plurality of data lines included in a display panel, a buffer circuit having a plurality of buffers receiving the analog image data to generate a data voltage, a first switch connected between an output terminal of the plurality of buffers and the plurality of pads, and a second switch connected between an input terminal of the plurality of buffers and the digital-to-analog converter, and a controller turning the first switch off and turning the second switch on to set at least a partial output of the plurality of buffers as new data voltages when the data voltage is output to the plurality of data lines through the plurality of pads.