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公开(公告)号：US11514842B2
公开(公告)日：2022-11-29
申请号：US17166683
申请日：2021-02-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Youngki Jung , Tetsuya Shigeta , Jinho Kim , Chulgyu Jung
Abstract: A display panel is provided. The display panel includes a plurality of light-emitting diodes constituting a plurality of sub-pixels of the display panel and configured to be divided into a plurality of groups; and a plurality of LED driving circuits configured to: receive a PWM data voltage in a scanning period; and based on the PWM data voltage, drive the plurality of light-emitting diodes by providing drive current to the plurality of light-emitting diodes for a time corresponding to the PWM data voltage in an emission period, wherein each of the plurality of LED driving circuits is configured to be connected to light-emitting diodes included in respective groups of the plurality of groups, and drive the light-emitting diodes of the respective groups.
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公开(公告)号：US20240274066A1
公开(公告)日：2024-08-15
申请号：US18625813
申请日：2024-04-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seungryong HAN , Tetsuya Shigeta , Gangmo Koo , Hwaseok Seong
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0452 , G09G2320/0209 , G09G2320/0276
Abstract: A display apparatus includes a display including a plurality of pixels; a memory storing a cross-talk weight for each gradation of adjacent pixels corresponding to a gradation value of a target pixel; and at least one processor configured to: obtain a gradation value of each pixel included in at least one line of pixels among the plurality of pixels, obtain histogram information indicating a number of pixels corresponding to each gradation section based on the obtained gradation value of each pixel in the at least one line of pixels, identify an amount of cross-talk corresponding to a target pixel based on the histogram information and the cross-talk weight for each gradation of adjacent pixels corresponding to a gradation value of the target pixel, and obtain a gradation correction value of the target pixel based on the identified amount of cross-talk.
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公开(公告)号：US11929015B2
公开(公告)日：2024-03-12
申请号：US18062420
申请日：2022-12-06
Inventor： Jinho Kim , Yong-Sang Kim , Donggun Oh , Jongsu Oh , Tetsuya Shigeta
CPC classification number: G09G3/32 , G09G3/2014 , G09G2300/0452 , G09G2300/0819 , G09G2300/0861 , G09G2310/0259 , G09G2310/0272 , G09G2310/0297 , G09G2310/066 , G09G2320/0223 , G09G2320/0242 , G09G2320/064
Abstract: A display module includes a display panel in which a plurality of pixels each including a plurality of sub-pixels are disposed on a plurality of row lines; and a driver. The driver is configured to set a PWM data voltage to the plurality of sub-pixels included in the plurality of row lines in a row line sequence, apply a sweep signal, which is a voltage signal sweeping between two different voltages, to sub-pixels among the plurality of sub-pixels that are included in at least some consecutive row lines among the plurality of row lines in the row line sequence, and drive the display panel to cause the sub-pixels included in the at least some consecutive row lines to emit light based on the PWM data voltage in the row line sequence.
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公开(公告)号：US11929012B2
公开(公告)日：2024-03-12
申请号：US17677529
申请日：2022-02-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sangyoung Park , Jongsu Oh , Hoseop Lee , Tetsuya Shigeta
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/026 , G09G2300/0426 , G09G2330/04
Abstract: A display module and a display apparatus including the same are provided. The display module includes a module substrate; pixels provided on the module substrate; and a micro-pixel controller configured to supply drive currents to the pixels. The micro-pixel controller includes: a first input pad for receiving a power voltage; a second input pad for receiving a data voltage; pixel circuits configured to output the drive currents to the pixels; a control circuit configured to distribute the power voltage and the data voltage to the pixel circuits; a first ESD protection circuit connected to the first input pad and the control circuit through a first voltage line and configured to transmit the power voltage to the control circuit; and a second ESD protection circuit connected to the second input pad and the control circuit through a second voltage line and configured to transmit the data voltage to the control circuit.
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公开(公告)号：US11790836B2
公开(公告)日：2023-10-17
申请号：US17848549
申请日：2022-06-24
Inventor： Jinho Kim , Yong-Sang Kim , Daisuke Kawae , Junichi Yamashita , Takashige Fujimori , Donggun Oh , Jongsu Oh , Tetsuya Shigeta
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0809 , G09G2320/0242 , G09G2320/064
Abstract: A display module including a display panel comprising a plurality of pixels each comprising a plurality of sub pixels, the pixels being disposed on a plurality of row lines of the display panel and a driver. The driver being configured to apply a pulse width modulation (PWM) data voltage to the sub pixels in a sequential order of the row lines; and drive the display panel such that the sub pixels included in a plurality of consecutive row lines among the plurality of row lines emit light, in the sequential order of the row lines, for a time corresponding to the applied PWM data voltage.
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Patent Agency Ranking
公开(公告)号：US10593251B2
公开(公告)日：2020-03-17
申请号：US15952782
申请日：2018-04-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tetsuya Shigeta , Sang-young Park , Ho-seop Lee
IPC: G09G3/20 , G09G3/32 , G09G3/3208 , G09G3/3258
Abstract: A display panel including a plurality of pixel circuits is provided. Each of the plurality of pixel circuits includes a light emitting unit including a light emitting element; a control circuit configured to control a light emitting duration of the light emitting element based on an input end voltage; a first switching element connected between an input end and an output end of the control circuit; and a signal input unit including a second switching element and configured to transmit an input signal to the input end of the control circuit. The first switching elements of each of the plurality of pixel circuits are configured to simultaneously turn on or off.
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公开(公告)号：US20220223576A1
公开(公告)日：2022-07-14
申请号：US17672090
申请日：2022-02-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jongsu OH , Sangyoung Park , Hoseop Lee , Tetsuya Shigeta
Abstract: A display apparatus is provided having a plurality of pixels, which are arranged in M columns and N rows and arranged with a constant row space therebetween. The display apparatus includes a plurality of display modules and a housing configured to support the plurality of display modules. Each of the plurality of display modules includes a plurality of pixel packages each including some pixels of the plurality of pixels, and a plurality of micro pixel controllers each controlling the pixels included in each of the plurality of pixel packages. Each of the micro pixel controllers is disposed in the row space between the plurality of pixels to be long in a horizontal direction that is a row direction.
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公开(公告)号：US20210210002A1
公开(公告)日：2021-07-08
申请号：US17139414
申请日：2020-12-31
Inventor： Jinho Kim , Yong-Sang Kim , Donggun Oh , Jongsu Oh , Tetsuya Shigeta
IPC: G09G3/32
Abstract: A display module includes a display panel in which a plurality of pixels each including a plurality of sub-pixels are disposed on a plurality of row lines; and a driver. The driver is configured to set a PWM data voltage to the plurality of sub-pixels included in the plurality of row lines in a row line sequence, apply a sweep signal, which is a voltage signal sweeping between two different voltages, to sub-pixels among the plurality of sub-pixels that are included in at least some consecutive row lines among the plurality of row lines in the row line sequence, and drive the display panel to cause the sub-pixels included in the at least some consecutive row lines to emit light based on the PWM data voltage in the row line sequence.
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公开(公告)号：US11056047B2
公开(公告)日：2021-07-06
申请号：US16731377
申请日：2019-12-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tetsuya Shigeta , Jinho Kim , Sangyoung Park , Hoseop Lee
IPC: G09G3/32
Abstract: A display panel includes a plurality of pixels arranged in a matrix, the plurality of pixels respectively including a plurality of sub pixels. The plurality of sub pixels respectively includes a light emitting element, and a PWM pixel circuit configured to control a light emitting duration of the light emitting element, based on a pulse width modulation (PWM) data voltage and a sweep voltage. A plurality of PWM pixel circuits included in the display panel are driven, for each of row lines of the plurality of pixels, in an order of a data setting period for setting the PWM data voltage and then a light emitting period in which the light emitting element emits light during a duration corresponding to the set PWM data voltage according to a change of the sweep voltage.
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公开(公告)号：US20200265777A1
公开(公告)日：2020-08-20
申请号：US16731377
申请日：2019-12-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tetsuya Shigeta , Jinho Kim , Sangyoung Park , Hoseop Lee
IPC: G09G3/32
Abstract: A display panel includes a plurality of pixels arranged in a matrix, the plurality of pixels respectively including a plurality of sub pixels. The plurality of sub pixels respectively includes a light emitting element, and a PWM pixel circuit configured to control a light emitting duration of the light emitting element, based on a pulse width modulation (PWM) data voltage and a sweep voltage. A plurality of PWM pixel circuits included in the display panel are driven, for each of row lines of the plurality of pixels, in an order of a data setting period for setting the PWM data voltage and then a light emitting period in which the light emitting element emits light during a duration corresponding to the set PWM data voltage according to a change of the sweep voltage.
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