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公开(公告)号：US20230014815A1
公开(公告)日：2023-01-19
申请号：US17757689
申请日：2020-11-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yo Han LEE
Abstract: The present disclosure relates a display device and a method of driving the same. For example, a display device according to one or more embodiments of the present disclosure includes pixels, a sensing unit, and a compensator calculating a current compensation value for each of the pixels based on a sensing value of the sensing unit, a first pixel among the pixels includes at least two light emitting diodes connected in series with a first transistor that controls a current, the sensing unit outputs a sensing value by sensing a voltage of the light emitting diodes in a sensing period, and the compensator increases the current compensation value for the first pixel as a voltage of the second node decreases in the sensing period.
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公开(公告)号：US20220069004A1
公开(公告)日：2022-03-03
申请号：US17421367
申请日：2019-07-09
Applicant: Samsung Display Co., Ltd.
Inventor： Sin Chul KANG , Won Sik OH , Jae Woong KANG , Su Mi MOON , Yo Han LEE
Abstract: A display device includes a first substrate including a first area and a second area located at the edge of the first area. A first electrode and a second electrode are on the first substrate and spaced from each other. Light emitting elements are located between the first electrode and the second electrode in the first area. A first conductive layer is on the first electrode in the second area. A pixel circuit layer is on the first conductive layer in the second area, and includes a transistor connected to the first conductive layer. A second substrate is on the pixel circuit layer.
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公开(公告)号：US20210390902A1
公开(公告)日：2021-12-16
申请号：US17283771
申请日：2019-04-08
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yo Han LEE , Su Mi MOON , Hyun Min CHO
Abstract: A pixel includes a first light source including at least one first light emitting element between a first split electrode and a second power supply; a second light source unit including at least one second light emitting element between a second split electrode and the second power supply; a driving-current generator including a first transistor between a first power supply and the first and second light source units and generating a driving current corresponding to a first data signal; a first switching unit including a first switching element between the driving-current generator and the first light source; and a second switching unit including a second switching element between the driving-current generator and the second light source unit and controlling an electrical connection between the first and second light source units in response to a second data signal.
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公开(公告)号：US20210358393A1
公开(公告)日：2021-11-18
申请号：US17277264
申请日：2019-07-08
Applicant: Samsung Display Co., Ltd.
Inventor： Sin Chul KANG , Won Sik OH , Yo Han LEE , Hee Keun LEE , Hyun Min CHO
IPC: G09G3/32 , H01L33/62 , H01L25/075 , H01L33/00
Abstract: A method for manufacturing a display device including a substrate including a display area and a non-display area located outside the display area, the display area including pixel areas, is provided. First switching elements are formed in the pixel areas, respectively, and a circuit element layer that includes reference voltage wire in the non-display area and electrically connected to the first switching elements is formed. Pixel electrodes that include first pixel electrodes in the pixel areas on the circuit element layer, respectively, and electrically connected through the first switching elements to the reference voltage wire, and second pixel electrodes facing the first pixel electrodes, are formed. A plurality of light emitting elements are arranged between the first pixel electrodes and the second pixel electrodes. A first source voltage is applied to the reference voltage wire and a second source voltage is applied to the second pixel electrodes
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公开(公告)号：US20230049527A1
公开(公告)日：2023-02-16
申请号：US17977580
申请日：2022-10-31
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yo Han LEE , Su Mi MOON , Hyun Min CHO
Abstract: A pixel includes a first light source including at least one first light emitting element between a first split electrode and a second power supply; a second light source unit including at least one second light emitting element between a second split electrode and the second power supply; a driving-current generator including a first transistor between a first power supply and the first and second light source units and generating a driving current corresponding to a first data signal; a first switching unit including a first switching element between the driving-current generator and the first light source; and a second switching unit including a second switching element between the driving-current generator and the second light source unit and controlling an electrical connection between the first and second light source units in response to a second data signal.
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Patent Agency Ranking
公开(公告)号：US20220037299A1
公开(公告)日：2022-02-03
申请号：US17277270
申请日：2019-05-29
Applicant: Samsung Display Co., Ltd.
Inventor： Won Ho LEE , Yo Han LEE , Jong Hyuk KANG , Jin Oh KWAG , Hyun Deok IM , Hyun Min CHO , Won Kyu KIM , Keun Kyu SONG
Abstract: A display device and a method of manufacturing the same are provided. The display device comprises a first area which extends in a first direction, a second area which extends in the first direction and is alongside the first area in a second direction intersecting the first direction, at least one first light emitting element in the first area, at least one second light emitting element in the second area, at least one first wiring coupled to an end of the first light emitting element in the first area and that extends in the first direction and at least one second wiring coupled to an end of the second light emitting element in the second area and that extends in the first direction, wherein the first wiring and the second wiring are electrically isolated from each other.
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公开(公告)号：US20210335168A1
公开(公告)日：2021-10-28
申请号：US17271477
申请日：2019-02-20
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yo Han LEE , Sin Chul KANG , Su Mi MOON , Won Sik OH
Abstract: A pixel comprising a light emitting unit comprising at least one light emitting element; a pixel circuit for supplying current to the light emitting in response to a data signal; a sensing transistor electrically connected between a data line and a first node that is a common node of the light emitting unit and the pixel circuit; and a control transistor electrically connected between a scanning line and a gate electrode of the sensing transistor.
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公开(公告)号：US20250078713A1
公开(公告)日：2025-03-06
申请号：US18792477
申请日：2024-08-01
Applicant: Samsung Display Co., LTD.
Inventor： Yo Han LEE
IPC: G09G3/20 , G09G3/00 , G09G3/32 , G09G3/3275
Abstract: A display device includes a pixel including a light-emitting element, and a data driver configured to sequentially provide first and second data signals to the pixel in a frame period including a first period and a second period, wherein the pixel is configured to emit light during the first period based on the first data signal, and to emit light during the second period based on the second data signal, wherein, when a grayscale value for the pixel is greater than a reference grayscale value, the pixel is configured to equally emit light in the first period and the second period, and wherein, when the grayscale value is less than or equal to the reference grayscale value, the pixel is configured to emit light differently in the first period compared to the second period, or to emit light in the first period while not emitting light in the second period.
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公开(公告)号：US20240038152A1
公开(公告)日：2024-02-01
申请号：US18482191
申请日：2023-10-06
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yo Han LEE , Su Mi MOON , Hyun Min CHO
CPC classification number: G09G3/32 , G09G3/2007 , G09G2300/0426 , G09G2300/0439 , G09G2300/0809 , G09G2310/0243 , G09G2310/027 , G09G2310/0272 , G09G2310/08 , G09G2330/00
Abstract: A pixel includes a first light source including at least one first light emitting element between a first split electrode and a second power supply; a second light source unit including at least one second light emitting element between a second split electrode and the second power supply; a driving-current generator including a first transistor between a first power supply and the first and second light source units and generating a driving current corresponding to a first data signal; a first switching unit including a first switching element between the driving-current generator and the first light source; and a second switching unit including a second switching element between the driving-current generator and the second light source unit and controlling an electrical connection between the first and second light source units in response to a second data signal.
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公开(公告)号：US20220384402A1
公开(公告)日：2022-12-01
申请号：US17767240
申请日：2020-09-24
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Yo Han LEE , Won Sik OH , Hyun Min CHO
Abstract: A pixel includes first and second sub-pixel areas adjacent to each other in a first direction; first and second electrodes disposed in each of the first and the second sub-pixel areas, and spaced apart from each other; light emitting elements disposed between the first and the second electrodes in each of the first and the second sub-pixel areas; a first driving transistor disposed in the first sub-pixel area, and electrically connected to the first electrode; and a second driving transistor disposed in the second sub-pixel area, and electrically connected to the first electrode. The first electrode of the first sub-pixel area and the first electrode of the second sub-pixel area are electrically disconnected from each other, and the second electrode of the first sub-pixel area and the second electrode of the second sub-pixel area are electrically connected to each other.
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