公开(公告)号：US20220351687A1

公开(公告)日：2022-11-03

申请号：US17864902

申请日：2022-07-14

Applicant: Samsung Display Co., LTD.

Inventor： HAE-KWAN SEO ,  SEONGHEON CHO ,  SOON-DONG KIM ,  TAEHOON KIM

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/3275

Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.

公开(公告)号：US20220068216A1

公开(公告)日：2022-03-03

申请号：US17240111

申请日：2021-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGNOH YOON ,  SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM ,  HUI NAM ,  EUN SIL YUN ,  SEUNGJAE LEE

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the display panel is divided into a first display region and a second display region during a multi-frequency mode and the first display region and the second display region are respectively operated at different frequencies, where the driving controller changes an operation mode to a normal mode when a still image and a moving image are simultaneously displayed in the first display region during the multi-frequency mode and the duration of the still image reaches a predetermined time.

公开(公告)号：US20220020327A1

公开(公告)日：2022-01-20

申请号：US17243829

申请日：2021-04-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEONGHEON CHO ,  JOON-CHUL GOH ,  SOON-DONG KIM ,  BONGHYUN YOU

IPC: G09G3/3233 ,  G09G3/3283 ,  G09G3/3266

Abstract: A light emission driving circuit includes a driving circuit configured to output a light emission driving signal to a first output terminal and output a switching signal to a first node in response to clock signals and a first carry signal, and a first masking circuit configured to output a second carry signal to a second output terminal in response to a masking clock signal, the light emission driving signal, and the first switching signal. The masking clock signal is a signal which is maintained at a first level during a normal mode and periodically changes during a low power mode.

公开(公告)号：US20210407431A1

公开(公告)日：2021-12-30

申请号：US17354857

申请日：2021-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： TAEHOON KIM ,  JOON-CHUL GOH ,  SOON-DONG KIM ,  HAE-KWAN SEO

IPC: G09G3/3266 ,  G09G3/3225

Abstract: A scan driving circuit includes: a driving circuit configured to output a scan signal to an output terminal in response to clock signals and a carry signal; and a masking circuit configured to stop the driving circuit from outputting the scan signal in response to a masking signal and a signal indicating an operating state of the driving circuit.

公开(公告)号：US20210407429A1

公开(公告)日：2021-12-30

申请号：US17185358

申请日：2021-02-25

Applicant: Samsung Display Co., LTD.

Inventor： HAE-KWAN SEO ,  SEONGHEON CHO ,  SOON-DONG KIM ,  TAEHOON KIM

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/3275

Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.