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公开(公告)号:US20240013724A1
公开(公告)日:2024-01-11
申请号:US18196659
申请日:2023-05-12
Applicant: Samsung Display Co., LTD.
Inventor: DONGGYU LEE , HONGSOO KIM , SEHYUK PARK , YOUNGHA SOHN , JIN-WOOK YANG , JAE-HYEON JEON
IPC: G09G3/3258 , G09G3/3233
CPC classification number: G09G3/3258 , G09G3/3233 , G09G2300/0819 , G09G2330/028 , G09G2310/08 , G09G2310/0264 , G09G2320/0247 , G09G2330/021 , G09G2300/0852
Abstract: An electronic device includes a display panel which includes a plurality of pixels and displays an image at each of multiple frames, a driving circuit which drives the multiple frames at multiple operating frequencies, a voltage generator which provides a voltage to the display panel, and a drive controller. The drive controller includes a representative frequency calculator which calculates a representative frequency, based on operating frequencies of ‘n’ number of frames before one frame of the multiple frames, and a compensating signal calculator which outputs a compensating signal, based on the representative frequency and a count number in the one frame. The drive controller transmits the compensating signal to the voltage generator, the voltage includes a reference voltage, the voltage generator generates the reference voltage based on the compensating signal, and the voltage generator provides the reference voltage to each of the plurality of pixels.
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公开(公告)号:US20220366828A1
公开(公告)日:2022-11-17
申请号:US17645081
申请日:2021-12-20
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: SEHYUK PARK , JINYOUNG ROH , WOOMI BAE , HAE-KWAN SEO , YOUNGHA SOHN , JIN-WOOK YANG
IPC: G09G3/20
Abstract: A display device includes four pixel arrays, a data driver, and a demultiplexer. The data driver is electrically connected to first and second data output lines. The demultiplexer electrically connects first and second data lines to the first data output line and electrically connects third and fourth data lines to the second data output line. The first to fourth pixel arrays are adjacent to the first to fourth data lines, respectively. Each of the first to fourth pixel arrays includes first and second color pixels. The first color pixels in the second pixel array are connected to the second data line, the second color pixels in the second pixel array are connected to the third data line, the second color pixels in the third pixel array are connected to the third data line, and the first color pixels in the third pixel array are connected to the second data line.
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公开(公告)号:US20220238074A1
公开(公告)日:2022-07-28
申请号:US17717997
申请日:2022-04-11
Applicant: Samsung Display Co., Ltd.
Inventor: SEHYUK PARK , HONGSOO KIM , JINYOUNG ROH , BONGHYUN YOU , HYOJIN LEE , JAEKEUN LIM
IPC: G09G3/3266 , G09G3/3275
Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.
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公开(公告)号:US20220013059A1
公开(公告)日:2022-01-13
申请号:US17212392
申请日:2021-03-25
Applicant: Samsung Display Co., Ltd.
Inventor: SEHYUK PARK , HONGSOO KIM , JINYOUNG ROH , HYOJIN LEE , JAEKEUN LIM
IPC: G09G3/20
Abstract: A display apparatus includes a display panel, a data driver and a frequency controller. The display panel displays an image based on an input image data. The data driver outputs a data voltage to the display panel. The frequency controller determines a driving frequency of the display panel based on the input image data and a play speed setting.
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公开(公告)号:US20250140206A1
公开(公告)日:2025-05-01
申请号:US18915563
申请日:2024-10-15
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: SEHYUK PARK , YOUNGHA SOHN , JIN-WOOK YANG , DONGGYU LEE , JAE-HYEON JEON
IPC: G09G3/3266 , G09G3/32
Abstract: A gate driver including: first to N-th stages receiving first to N-th clock signals from first to N-th clock lines, the first stage includes a first clock terminal receiving the first clock signal, a second clock terminal receiving a second clock signal, a carry terminal receiving a vertical start signal, and an output terminal outputting a first gate signal, an N−K-th stage includes a first clock terminal receiving an N−K-th clock signal, a second clock terminal receiving an N−K+1-th clock signal, a carry terminal receiving an N−K−1-th gate signal, and an output terminal outputting an N−K-th gate signal, and the N-th stage includes a first clock terminal receiving the N-th clock signal, a second clock terminal receiving the first clock signal, a carry terminal receiving an N−1-th gate signal, and an output terminal outputting an N-th gate signal.
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公开(公告)号:US20240185797A1
公开(公告)日:2024-06-06
申请号:US18407362
申请日:2024-01-08
Applicant: Samsung Display Co., Ltd.
Inventor: SEHYUK PARK , HONGSOO KIM , JINYOUNG ROH , BONGHYUN YOU , HYOJIN LEE , JAEKEUN LIM
IPC: G09G3/3266 , G09G3/3275
CPC classification number: G09G3/3266 , G09G3/3275 , G09G2310/04 , G09G2320/0247 , G09G2320/103 , G09G2330/023 , G09G2330/028
Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.
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公开(公告)号:US20240144881A1
公开(公告)日:2024-05-02
申请号:US18347168
申请日:2023-07-05
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: SEHYUK PARK , YOUNGHA SOHN , JIN-WOOK YANG , DONGGYU LEE , JAE-HYEON JEON
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0262 , G09G2310/08 , G09G2320/0233 , G09G2320/0247
Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to output a gate signal to the pixel. The data driver is configured to output a data voltage to the pixel. The emission driver is configured to output an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element configured to apply a driving current to the light emitting element and a bias switching element configured to apply a bias voltage to the driving switching element. The display apparatus increases a level of the bias voltage when a duration of a light emission time of the pixel is increased.
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公开(公告)号:US20240013709A1
公开(公告)日:2024-01-11
申请号:US18106704
申请日:2023-02-07
Applicant: Samsung Display Co., Ltd.
Inventor: DONGGYU LEE , SEHYUK PARK , YOUNGHA SOHN , JIN-WOOK YANG , JAE-HYEON JEON
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/08 , G09G2310/061 , G09G2310/0267 , G09G2320/0233
Abstract: A display device includes a display panel which includes first to nth pixel areas arranged in a direction, where n is a natural number greater than or equal to 2, an emission control driver which provides an emission control signal having a plurality of emission cycles corresponding to a number of outputs of a gate-on voltage during a frame period to the first to nth pixel areas, a power supply which generates first to nth bias voltages respectively provided to the first to nth pixel areas, and a timing controller which controls timings when the first to nth bias voltages are supplied to the first to nth pixel areas in a way such that a kth bias voltage is provided with a delay of one emission cycle from a (k−1)th bias voltage, where k is a natural number greater than or equal 2 and less than or equal n.
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公开(公告)号:US20230410741A1
公开(公告)日:2023-12-21
申请号:US18122401
申请日:2023-03-16
Applicant: Samsung Display Co., Ltd.
Inventor: DONGGYU LEE , JAE-HYEON JEON , SEHYUK PARK , JIN-WOOK YANG
IPC: G09G3/3233 , G09G3/20
CPC classification number: G09G3/3233 , G09G3/2096 , G09G2300/0819 , G09G2300/0852 , G09G2320/0247 , G09G2310/08 , G09G2320/0285 , G09G2320/0233 , G09G2300/0861
Abstract: A display device includes a light emitting element, a first transistor, and a second transistor connected between the first transistor and the light emitting element and including a gate electrode which receives an emission signal. One frame includes a first period a second period continuous with the first period. An emission off period of the emission signal has a first time duration during the first period, and the emission off period of the emission signal has a second time duration different from the first time duration during the second period.
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公开(公告)号:US20250104608A1
公开(公告)日:2025-03-27
申请号:US18755073
申请日:2024-06-26
Applicant: Samsung Display Co., LTD.
Inventor: DONGGYU LEE , SEHYUK PARK , JIN-WOOK YANG , JAE-HYEON JEON
IPC: G09G3/32 , G09G3/3225
Abstract: A display device includes a display panel that includes a plurality of pixels and displays an image corresponding to each of a plurality of frames, and a drive controller that receives an image signal and drives the plurality of frames at a plurality of driving frequencies. The drive controller includes a representative frequency calculator, a compensation signal calculator, and a data compensation unit that receives an image signal and outputs a compensation data signal by adding a gray of the image signal and a gray value based on a data correction lookup table in which the gray value is stored. Luminance of the image is controlled based on the compensation signal and the compensation data signal.
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