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    Pixel and display device
    1.
    发明授权
    Pixel and display device 有权

    公开(公告)号：US12254830B2

    公开(公告)日：2025-03-18

    申请号：US18521418

    申请日：2023-11-28

    Applicant: Samsung Display Co., Ltd.

    Inventor： Junhyun Park ,  Jangmi Kang ,  Minjae Jeong ,  Meehye Jung

    IPC: G09G3/3233

    Abstract: A pixel includes: a light emitting diode; a first transistor; a first capacitor connected between a first node and a gate electrode of the first transistor; a second transistor including a first electrode electrically connected to the gate electrode of the first transistor, a second electrode and a gate electrode which receives a first scan signal; and a third transistor including a first electrode electrically connected to the second electrode of the second transistor, a second electrode electrically connected to a third voltage line, and a gate electrode which receives a second scan signal. During an initialization period, an initialization voltage provided from the third voltage line is provided to the gate electrode of the first transistor through the third and second transistors, and, when the initialization period is terminated, at least one of the second transistor and the third transistor is turned off.

    Pixel circuit and display apparatus having the same
    2.
    发明授权
    Pixel circuit and display apparatus having the same 有权

    公开(公告)号：US12211430B2

    公开(公告)日：2025-01-28

    申请号：US18372618

    申请日：2023-09-25

    Applicant: Samsung Display Co., LTD.

    Inventor： Junhyun Park ,  Hyeongseok Kim ,  Jangmi Kang ,  Minjae Jeong ,  Mukyung Jeon

    IPC: G09G3/32

    Abstract: A pixel circuit includes a light emitting element, a driving switching element, a storage capacitor, a data voltage applying switching element and a first leakage compensation switching element. The driving switching element is configured to apply a driving current to the light emitting element. The storage capacitor is connected to a control electrode of the driving switching element. The data voltage applying switching element is configured to apply a data voltage to the storage capacitor. The first leakage compensation switching element is disposed between the storage capacitor and the data voltage applying switching element.

    DISPLAY APPARATUS
    4.
    发明公开
    DISPLAY APPARATUS 审中-公开

    公开(公告)号：US20240324283A1

    公开(公告)日：2024-09-26

    申请号：US18613104

    申请日：2024-03-22

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jangmi Kang ,  Myunghoon Park ,  Byungchang Yu ,  Donghoon Lee

    IPC: H10K59/121 ,  H10K59/131

    CPC classification number: H10K59/121 ,  H10K59/131

    Abstract: A display apparatus is disclosed that includes a substrate including a front display area and a corner display area extending from a corner of the front display area. A plurality of main light-emitting elements is arranged in the front display area and a plurality of main pixel circuits are connected to the plurality of main light-emitting elements, respectively. A plurality of corner light-emitting elements is arranged in the corner display area and a plurality of corner pixel circuits are connected to the plurality of corner light-emitting elements. Each of the plurality of main pixel circuits and the plurality of corner pixel circuits includes a boost capacitor, and a capacitance of the boost capacitor included in each of the plurality of corner pixel circuits gradually increases or decreases as the boost capacitor gets farther from the front display area.

    Display apparatus and method of driving the same
    5.
    发明授权
    Display apparatus and method of driving the same 有权

    公开(公告)号：US12027110B2

    公开(公告)日：2024-07-02

    申请号：US18363556

    申请日：2023-08-01

    Applicant: Samsung Display Co., LTD.

    Inventor： Junhyun Park ,  Jangmi Kang ,  Hyeongseok Kim ,  Minjae Jeong ,  Mukyung Jeon

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0247

    Abstract: A display apparatus includes a display panel including a pixel, a gate driver providing a gate signal to the pixel, a data driver providing a data voltage to the pixel and an emission driver providing an emission signal to the pixel. The pixel includes a driving switching element applying a driving current to the light emitting element, a storage capacitor connected to the driving switching element, a bias capacitor connected to the storage capacitor and receiving a bias gate signal, a threshold voltage compensation switching element connected to an electrode of the driving switching element and a light emitting element initialization switching element connected to an electrode of the light emitting element. A control signal applied to an electrode of the threshold voltage compensation switching element and a control signal applied to an electrode of the light emitting element initialization switching element are generated from different signal generators.

    DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME
    6.
    发明公开
    DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME 审中-公开

    公开(公告)号：US20240130168A1

    公开(公告)日：2024-04-18

    申请号：US18488093

    申请日：2023-10-17

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jangmi Kang ,  Myunghoon Park ,  Byungchang Yu ,  Donghoon Lee

    IPC: H10K59/122 ,  H10K59/131

    CPC classification number: H10K59/122 ,  H10K59/131

    Abstract: A display apparatus includes a display area in which a plurality of light-emitting diodes are disposed, a common voltage supply line disposed in a non-display area outside the display area, an organic insulating layer disposed on the common voltage supply line, a connection electrode layer disposed on the organic insulating layer and electrically connected to the common voltage supply line, an insulating layer disposed on the connection electrode layer, and a metal bank layer electrically connected to the connection electrode layer through a contact hole of the insulating layer, wherein the metal bank layer includes a first hole overlapping the organic insulating layer, and each of the connection electrode layer and the insulating layer includes a hole overlapping the first hole of the metal bank layer.

    Pixel circuit boosted by a boost capacitor
    7.
    发明授权
    Pixel circuit boosted by a boost capacitor 有权

    公开(公告)号：US11727864B2

    公开(公告)日：2023-08-15

    申请号：US17748521

    申请日：2022-05-19

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jangmi Kang ,  Junhyun Park ,  Minjae Jeong ,  Hyeongseok Kim

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/027

    Abstract: A pixel circuit includes a light emitting element, a write transistor configured to apply a data voltage to an input node in response to a write gate signal, a storage capacitor configured to store the data voltage, a driving transistor configured to apply a driving current to the light emitting element based on the data voltage, a first compensation transistor configured to compensate for a threshold voltage of the driving transistor in response to a compensation gate signal, a first initialization transistor configured to apply a first initialization voltage to a control electrode of the driving transistor in response to an initialization gate signal, and a boost capacitor including a first electrode to which a previous initialization gate signal applied to a previous pixel row is applied and a second electrode connected to the control electrode of the driving transistor.

    Display apparatus including sensor
    8.
    发明授权
    Display apparatus including sensor 有权

    公开(公告)号：US11287911B2

    公开(公告)日：2022-03-29

    申请号：US16907842

    申请日：2020-06-22

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jangmi Kang ,  Jisun Kim

    IPC: G06F3/041 ,  H01L27/32 ,  G06K9/00 ,  H01L51/52

    Abstract: A display apparatus including a sensor includes: a pixel group including a predetermined number of pixels, each of which includes a pixel circuit and a light-emitting device electrically connected to the pixel circuit; and a sensing pixel including a sensing circuit and a sensing electrode connected to the sensing circuit, where the sensing electrode forms a variable capacitor with respect to a finger, and the sensing circuit is arranged around the pixel circuit of the pixel group.

    Display apparatus
    9.
    发明授权
    Display apparatus 有权

    公开(公告)号：US10431606B2

    公开(公告)日：2019-10-01

    申请号：US15871103

    申请日：2018-01-15

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jangmi Kang ,  Meehye Jung ,  Hyunjoon Kim ,  Cheolgon Lee ,  Sehyoung Cho ,  Injae Hwang

    IPC: H01L27/12 ,  H01L23/00 ,  H01L27/32 ,  H01L29/786 ,  H01L51/05

    Abstract: A display device includes a substrate including a display region, and a peripheral region that is outside of the display region, a plurality of dummy pads at the peripheral region, an insulating layer covering the plurality of dummy pads, wherein top surfaces of first portions of the insulating layer above the plurality of dummy pads are higher than top surfaces of second portions of the insulating layer between the plurality of dummy pads, and a plurality of pads over the second portions of the insulating layer at the peripheral region.

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