公开(公告)号：US11522040B2

公开(公告)日：2022-12-06

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

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：US11069767B2

公开(公告)日：2021-07-20

申请号：US16731235

申请日：2019-12-31

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：US10593266B2

公开(公告)日：2020-03-17

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 ,  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：US10467975B2

公开(公告)日：2019-11-05

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 ,  G09G3/3291

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.