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公开(公告)号:US20220375412A1
公开(公告)日:2022-11-24
申请号:US17880734
申请日:2022-08-04
Applicant: Samsung Display Co., Ltd.
Inventor: TAEHOON KIM , SANGAN KWON , SOON-DONG KIM , HUI NAM , BONGHYUN YOU , CHANGNOH YOON , JAEKEUN LIM
IPC: G09G3/3266 , G09G3/3225
Abstract: Provided is a scan driver of a display device, and the scan driver includes a driving circuit and a masking circuit. The driving circuit includes a control circuit, a first output circuit, and a second output circuit. The control circuit outputs a first control signal and a second control signal. The first output circuit is connected to a first output terminal which outputs a first scan signal and a first voltage terminal and operates in response to a first control signal. The second output circuit is connected to a first output terminal and a second voltage terminal and operates in response to a second control signal. The masking circuit outputs a second scan signal to a second output terminal in response to the first control signal and the second control signal and is connected to an input terminal to which a masking signal is supplied.
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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.
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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.
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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.
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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.
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公开(公告)号:US20240194153A1
公开(公告)日:2024-06-13
申请号:US18586408
申请日:2024-02-23
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: TAEHOON KIM , JOON-CHUL GOH , SOON-DONG KIM , HAE-KWAN SEO
IPC: G09G3/3266 , G09G3/3225
CPC classification number: G09G3/3266 , G09G3/3225 , G09G2300/0819 , G09G2310/0213 , G09G2330/021
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.
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公开(公告)号:US20240005846A1
公开(公告)日:2024-01-04
申请号:US18108626
申请日:2023-02-12
Applicant: Samsung Display Co., Ltd.
Inventor: TAEHOON KIM , SEON YOUNG CHOI , SANGAN KWON , SOON-DONG KIM , JIN-WOOK YANG , CHANGNOH YOON
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/0267 , G09G2380/02 , G09G2330/021
Abstract: A display panel of a display device is divided into a first display region and a second display region. The second display region includes a boundary region adjacent to the first display region and a non-boundary region opposite to the first display region with respect to the boundary region. The driving controller outputs the voltage control signal, such that the first voltage in a first high voltage level and the second voltage in a first low voltage level are generated when the first display region is driven. The driving controller outputs the voltage control signal, such that the first voltage in a second high voltage level lower than the first high voltage level and the second voltage in a second low voltage level higher than the first low voltage level are generated, when the non-boundary region of the second display region is driven.
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公开(公告)号:US20230402013A1
公开(公告)日:2023-12-14
申请号:US18132725
申请日:2023-04-10
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: JAEKEUN LIM , BON-SEOG GU , TAEHOON KIM , JINYOUNG ROH , HAE-KWAN SEO
IPC: G09G3/3266 , G09G3/3233
CPC classification number: G09G3/3266 , G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2330/021 , G09G2310/0202 , G09G2310/0286 , G09G2300/0861 , G09G2320/02 , G09G2310/08
Abstract: A scan driver includes a control unit, a first output unit, a second output unit, and a masking control unit. The control unit outputs a first control signal to a first control node and outputs a second control signal to a second control node. The first output unit is connected to the first control node, a first output terminal, and a first voltage terminal, and operates in response to the first control signal. The second output unit is connected to the second control node, the first output terminal, and a second voltage terminal, and operates in response to the second control signal. The masking control unit is connected between an input terminal, to which a clock signal is input, and the first control node and controls a voltage level of the first control signal in response to a masking enable signal.
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公开(公告)号:US20230298532A1
公开(公告)日:2023-09-21
申请号:US18324290
申请日:2023-05-26
Applicant: Samsung Display Co., LTD.
Inventor: HAE-KWAN SEO , SEONGHEON CHO , SOON-DONG KIM , TAEHOON KIM
IPC: G09G3/3266 , G09G3/3233 , G09G3/3275
CPC classification number: G09G3/3266 , G09G3/3233 , G09G3/3275 , G09G2310/0202 , G09G2310/08 , G09G2320/0238 , G09G2330/021
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.
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公开(公告)号:US20230196959A1
公开(公告)日:2023-06-22
申请号:US18108838
申请日:2023-02-13
Applicant: Samsung Display Co., Ltd.
Inventor: SANGAN KWON , SOON-DONG KIM , TAEHOON KIM , HUI NAM , EUN SIL YUN , CHANGNOH YOON
IPC: G09G3/00 , G09G3/3233 , G09G3/3291
CPC classification number: G09G3/035 , G09G3/3233 , G09G3/3291 , G09G2310/027 , G09G2380/02
Abstract: A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver which drives the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. In a case where the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.
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