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.

公开(公告)号：US20210327998A1

公开(公告)日：2021-10-21

申请号：US17359860

申请日：2021-06-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seong Min CHEON ,  Dong Wook SUH ,  Ji Hyun LEE

IPC: H01L27/32 ,  G09G3/3258 ,  G09G3/20 ,  G09G5/00

Abstract: A display driving circuit and a display device including the same are provided. The display driving circuit includes a source driver which applies source data to a display panel, a power supply unit which receives an external voltage from a power module to generate an internal voltage and a logic unit which is supplied with the internal voltage to control the source driver, wherein the logic unit includes a voltage variable determination logic which determines whether a supply voltage including the internal voltage and the external voltage is changed, thereby generating a voltage variable signal, and a voltage control logic which receives the voltage variable signal to change the supply voltage.

公开(公告)号：US20190130834A1

公开(公告)日：2019-05-02

申请号：US15984782

申请日：2018-05-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seong Min CHEON ,  Dong Wook SUH ,  Ji Hyun LEE

IPC: G09G3/3258 ,  H01L27/32

CPC classification number: G09G3/3258 ,  G09G3/2092 ,  G09G5/003 ,  G09G2310/0243 ,  G09G2310/0264 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2370/08 ,  H01L27/3297

Abstract: A display driving circuit and a display device including the same are provided. The display driving circuit includes a source driver which applies source data to a display panel, a power supply unit which receives an external voltage from a power module to generate an internal voltage and a logic unit which is supplied with the internal voltage to control the source driver, wherein the logic unit includes a voltage variable determination logic which determines whether a supply voltage including the internal voltage and the external voltage is changed, thereby generating a voltage variable signal, and a voltage control logic which receives the voltage variable signal to change the supply voltage.