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公开(公告)号:US11741893B2
公开(公告)日:2023-08-29
申请号:US17864798
申请日:2022-07-14
Applicant: Samsung Display Co., Ltd.
Inventor: Changnoh Yoon , Sangan Kwon , Soon-Dong Kim , Taehoon Kim
IPC: G09G5/00 , G09G3/3225
CPC classification number: G09G3/3225 , G09G2300/0842 , G09G2320/0271 , G09G2320/0626
Abstract: A display device includes a display panel, a power supply unit, and a low frequency offset compensator. The display panel includes a plurality of pixels. The power supply unit generates a first initialization voltage and a second initialization voltage and provides the first initialization voltage and the second initialization voltage to the pixels. The low frequency offset compensator selectively applies an offset to the second initialization voltage when the display panel is driven at a low frequency.
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12.
公开(公告)号:US11580886B2
公开(公告)日:2023-02-14
申请号:US17202769
申请日:2021-03-16
Applicant: Samsung Display Co., Ltd.
Inventor: Sangan Kwon , Soon-Dong Kim , Taehoon Kim , Hui Nam , Eun Sil Yun , Changnoh Yoon
IPC: G09G3/00 , G09G3/3291 , G09G3/3233
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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公开(公告)号:US11501682B2
公开(公告)日:2022-11-15
申请号:US17321227
申请日:2021-05-14
Applicant: Samsung Display Co., Ltd.
Inventor: Eun Sil Yun , Sangan Kwon , Soon-Dong Kim , Taehoon Kim , Changnoh Yoon
IPC: G09G3/00 , G09G3/20 , G09G3/3291 , G06F1/16
Abstract: A flexible display apparatus includes a first body portion, a second body portion and a driving controller. The first body portion includes a first display area, and the second body portion includes a second display area. The second display area is connected to the first display area. The driving controller is configured to determine a first driving frequency of the first display area and a second driving frequency of the second display area based on a folded angle between the first body portion and the second body portion along a folded line disposed between the first body portion and the second body portion.
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公开(公告)号:US11468837B2
公开(公告)日:2022-10-11
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 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.
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公开(公告)号:US11380249B2
公开(公告)日:2022-07-05
申请号:US17228842
申请日:2021-04-13
Applicant: Samsung Display Co., Ltd.
Inventor: Eun Sil Yun , Sangan Kwon , Soon-Dong Kim , Taehoon Kim , Bonghyun You , Changnoh Yoon
IPC: G09G3/32
Abstract: Provided is a display device including a display panel, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to determine an operation mode based on an input signal, and configured to control the data driving circuit and the scan driving circuit in order to drive a first display region of the display panel at a first driving frequency and drive a second display region of the display panel at a second driving frequency while the operation mode is a multi-frequency mode, wherein the driving controller may change the operation mode to a compensation mode in which the second display region is periodically driven at the first driving frequency when the duration of the multi-frequency mode is greater than a reference time.
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公开(公告)号:US20220076634A1
公开(公告)日:2022-03-10
申请号:US17326570
申请日:2021-05-21
Applicant: Samsung Display Co., Ltd.
Inventor: Changnoh Yoon , Soon-Dong Kim , Sangan Kwon , Seungjae Lee , Junheyung Jung
IPC: G09G3/3275 , G09G3/3266
Abstract: A display device includes a display panel including pixels connected to data lines and scan lines, a data driving circuit which drives the data lines, a scan driving circuit which drives the scan lines, and a driving controller divides the display panel into first and second display regions, controls the data driving circuit and the scan driving circuit to drive the first display region at a first driving frequency and to drive the second display region at a second driving frequency lower than the first driving frequency, and sets third driving frequencies respectively corresponding to horizontal lines in a boundary region, which is defined by a portion of the second display region adjacent to the first display region, during a multi-frequency mode. Each of the third driving frequencies has a frequency level between the first driving frequency and the second driving frequency.
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公开(公告)号:US11176889B2
公开(公告)日:2021-11-16
申请号:US16927729
申请日:2020-07-13
Applicant: Samsung Display Co., Ltd.
Inventor: Wontae Kim , Bong-Hyun You , Sun-Koo Kang , Joon Chul Goh , Soon-Dong Kim , Jin-Wook Yang , Ki Hong Song
IPC: G09G3/3258 , G09G3/3275
Abstract: A display apparatus includes a display panel, a data driver, and a power voltage generator. The display panel includes a plurality of pixels and configured to display an image. The data driver is configured to apply a data voltage to the display panel. The power voltage generator is configured to provide a power voltage and an initialization voltage to the display panel. The power voltage generator is configured to receive a feedback initialization voltage from the display panel and configured to compensate the initialization voltage based on the feedback initialization voltage.
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公开(公告)号:US11062656B2
公开(公告)日:2021-07-13
申请号:US16931966
申请日:2020-07-17
Applicant: Samsung Display Co., Ltd.
Inventor: Seungjae Lee , Soon-Dong Kim , Changnoh Yoon , Jun Heyung Jung
IPC: G09G3/3258 , G09G3/3291 , G09G3/00
Abstract: A display apparatus includes: a display panel comprising a gate line, a data line and a plurality of display areas; a gate driver configured to output a gate signal to the gate line; a data driver configured to output a data voltage to the data line; a time sensor configured to sense an operation time of the display panel; and a voltage controller configured to adjust a back gate voltage according to the operation time sensed by the time sensor and the display areas.
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19.
公开(公告)号:US10650748B2
公开(公告)日:2020-05-12
申请号:US15863148
申请日:2018-01-05
Applicant: Samsung Display Co., Ltd.
Inventor: Soon-Dong Kim , Il-Joo Kim , Jun Ki Jeong , Jin-Wook Yang , Gyung Soon Park
IPC: G09G3/3258 , G09G3/3266 , G09G3/3291 , H01L27/32 , G09G3/3233 , G09G3/3225 , H01L27/12
Abstract: Example embodiments of the present disclosure provide a display device including: a plurality of pixels; a first scan gate line and a second scan gate line configured to transfer scan signals to a first pixel row of the pixels; a plurality of first gate bridges connected with the first scan gate line to transfer the scan signals to a plurality of first pixels at the first pixel row; a plurality of second gate bridges connected with the second scan gate line to transfer the scan signals to a plurality of second pixels at the first pixel row; a plurality of first data lines configured to supply a plurality of data voltages corresponding to the first pixels; and a plurality of second data lines configured to supply a plurality of data voltages corresponding to the second pixels, wherein two of the first data lines are positioned between two first pixels corresponding thereto, and two of the second data lines are positioned between two second pixels corresponding thereto.
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公开(公告)号:US12183240B2
公开(公告)日:2024-12-31
申请号:US18106418
申请日:2023-02-06
Applicant: Samsung Display Co., Ltd.
Inventor: Jin-Wook Yang , Soon-Dong Kim , Chang-Noh Yoon , Eun-Gyeong Choe
IPC: G09G3/20
Abstract: A display panel includes a first pixel group including sub-pixels coupled to a first scan line and located in first through N-th sub-pixel columns, where N is an even number greater than or equal to 2, a second pixel group including sub-pixels coupled to the first scan line and located in (N+1)-th through 2N-th sub-pixel columns, a third pixel group including sub-pixels coupled to a second scan line adjacent to the first scan line and located in the first through N-th sub-pixel columns, and a fourth pixel group including sub-pixels coupled to the second scan line and located in the (N+1)-th through 2N-th sub-pixel columns. The first pixel group and the second pixel group are driven during a first scan on time in which the first scan line is driven. Consecutive N−1 sub-pixels among the sub-pixels of the third pixel group and one sub-pixel among the sub-pixels of the fourth pixel group are driven during a first portion of a second scan on time in which the second scan line is driven, and consecutive N−1 sub-pixels among the sub-pixels of the fourth pixel group and one sub-pixel among the sub-pixels of the third pixel group are driven during a second portion of the second scan on time.
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