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公开(公告)号：US20220270544A1
公开(公告)日：2022-08-25
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
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：US20210304670A1
公开(公告)日：2021-09-30
申请号：US17344346
申请日：2021-06-10
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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3.发明申请公开(公告)号：US20180197453A1
公开(公告)日：2018-07-12
申请号：US15843250
申请日：2017-12-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Ho-seop LEE , Do-young KWAG , Tetsuya SHIGETA , Seong-phil CHO
Abstract: A display apparatus, including a display panel which includes a light emitting element, a storage configured to store a plurality of compensation coefficients corresponding to a plurality of gray levels according to a parasitic capacitance of the light emitting element, and a processor configured to obtain a compensation coefficient from the plurality of compensation coefficients based on at least one of a position of a scan line and a gray level of scan data, compensate the gray level of the scan data based on the obtained compensation coefficient, and drive the light emitting element based on the compensated gray level.
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公开(公告)号：US20240346990A1
公开(公告)日：2024-10-17
申请号：US18752432
申请日：2024-06-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seungryong HAN , Tetsuya SHIGETA , Gangmo KOO , Hwaseok SEONG
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0842 , G09G2320/0209 , G09G2320/0276
Abstract: A display device including: a display including a plurality of pixels in a plurality of pixel lines; a memory for storing a first cross-talk and a second cross-talk weight; and at least one processor configured to: simultaneously apply an image signal to the plurality of pixel lines; acquire a plurality of grayscale values and a plurality of grayscale sections of each of the plurality of pixels; acquire, based on the plurality of grayscale values, first histogram and second histogram information; identify a first cross-talk amount based on the first histogram information and the first cross-talk weight; identify a second cross-talk amount based on the second histogram information and the second cross-talk weight; acquire grayscale correction data of the target pixel based on the first cross-talk amount and the second cross-talk amount; and acquire a corrected grayscale value of the target pixel based on the grayscale correction data.
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公开(公告)号：US20220301500A1
公开(公告)日：2022-09-22
申请号：US17833427
申请日：2022-06-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tetsuya SHIGETA , Jinho KIM , Sangyoung PARK , Donggun OH , Hoseop LEE
Abstract: A display module is provided. The display module includes a plurality of sub-pixel circuits, each sub-pixel circuit including: an inorganic light-emitting diode, a transistor connected in parallel with the inorganic light-emitting diode, and a pulse width modulation (PWM) circuit configured to control a light-emitting time of the inorganic light-emitting diode by controlling a voltage of a gate terminal of the transistor based on an applied PWM data voltage that is applied to the PWM circuit; and a pulse amplitude modulation (PAM) circuit which is connected in series with an inorganic light-emitting diode of one of the plurality of sub-pixel circuits, the PAM circuit being configured to provide a driving current having a constant amplitude to the inorganic light-emitting diodes, wherein the inorganic light-emitting diodes of the plurality of sub-pixel circuits are connected in series to each other.
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Patent Agency Ranking
公开(公告)号：US20220223577A1
公开(公告)日：2022-07-14
申请号：US17675046
申请日：2022-02-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jongsu OH , Sangyoung PARK , Hoseop LEE , Tetsuya SHIGETA
Abstract: A display module is provided. The display module includes a plurality of pixels, a first substrate, a plurality of micro pixel packages provided on the first substrate, and a plurality of voltage lines electrically connected between a set of micro pixel packages of the plurality of micro pixel packages that are adjacent to each other in a first direction. Each of the plurality of micro pixel packages includes a second substrate, a plurality of inorganic light-emitting elements provided on the second substrate, and a micro pixel controller provided on the second substrate and configured to control the plurality of inorganic light-emitting elements.
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公开(公告)号：US20180301080A1
公开(公告)日：2018-10-18
申请号：US15952782
申请日：2018-04-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tetsuya SHIGETA , Sang-young PARK , Ho-seop LEE
CPC classification number: G09G3/2018 , G09G3/2014 , G09G3/32 , G09G3/3208 , G09G3/3258 , G09G2300/0819 , G09G2310/0259 , G09G2310/066 , G09G2320/0233
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：US20180293929A1
公开(公告)日：2018-10-11
申请号：US15900025
申请日：2018-02-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Tetsuya SHIGETA , Sang-young PARK , Ho-seop LEE
IPC: G09G3/20 , G09G3/3233
Abstract: A pixel circuit of a display panel is provided, which includes a light emitting element configured to emit light in accordance with a drive current, a current source including a driving transistor connected to the light emitting element, and the current source is configured to provide the drive current having a different amplitude to the light emitting element in accordance with a level of a voltage applied to a gate terminal of the driving transistor, an amplitude setting circuit configured to apply a voltage having a different level to the gate terminal of the driving transistor, and a pulse width control circuit configured to control a duration of the drive current by controlling the voltage applied to the gate terminal of the driving transistor.
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公开(公告)号：US20220301498A1
公开(公告)日：2022-09-22
申请号：US17831972
申请日：2022-06-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sangyoung PARK , Daisuke KAWAE , Junichi YAMASHITA , Jongsu OH , Hoseop LEE , Tetsuya SHIGETA
IPC: G09G3/32
Abstract: A display module is provided. The display module includes a module substrate; a plurality of pixels provided on an upper surface of the module substrate; and a plurality of micro pixel controllers, each of the plurality of micro pixel controllers being configured to control at least two pixels among the plurality of pixels and being provided in a space between the at least two pixels on the upper surface of the module substrate, wherein at least one of the plurality of micro pixel controllers includes a slope waveform generator configured to generate a slope waveform used to control a brightness of each of the at least two pixels.
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公开(公告)号：US20220172674A1
公开(公告)日：2022-06-02
申请号：US17675231
申请日：2022-02-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jongsu OH , Daisuke KAWAE , Junichi YAMASHITA , Sangyoung PARK , Hoseop LEE , Tetsuya SHIGETA
Abstract: A display module includes a plurality of pixels; a substrate; a plurality of inorganic LEDs arranged on the substrate, each of the plurality of pixels including two or more inorganic LEDs among the plurality of inorganic LEDs; and a plurality of micro-pixel controllers two-dimensionally arranged in a first direction and a second direction on the substrate, each of the plurality of micro-pixel controllers being configured to control two or more pixels among the plurality of pixels. Each micro-pixel controller of the plurality of micro-pixel controllers is electrically connected to micro-pixel controllers adjacent thereto, and is configured to convert a voltage input from one of the micro-pixel controllers that is electrically connected thereto in a direction opposite to the first direction into a target voltage and supply the target voltage to another micro-pixel controller of the micro-pixel controllers that is electrically connected thereto in the first direction.
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