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    Pixel, stage circuit and organic light emitting display device having the pixel and the stage circuit
    63.
    发明授权
    Pixel, stage circuit and organic light emitting display device having the pixel and the stage circuit 有权

    公开(公告)号：US10381426B2

    公开(公告)日：2019-08-13

    申请号：US15619662

    申请日：2017-06-12

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Ji Hyun Ka ,  Han Sung Bae ,  Won Kyu Kwak

    IPC: H01L27/32 ,  H01L27/12 ,  G09G3/3233

    Abstract: A pixel includes a pixel circuit and an organic light emitting diode. The pixel circuit has first, second, third, and fourth transistors. The first transistor controls an amount of current flowing from a first driving power supply coupled to a first node to a second driving power supply through the organic light emitting diode. The turns on when a scan signal is supplied to a first scan line. The third transistor turns on when a scan signal is supplied to a second scan line. The fourth transistor turns on when a scan signal is supplied to a third scan line. The first transistor is a p-type Low Temperature Poly-Silicon thin film transistor and the third transistor and the fourth transistor are n-type oxide semiconductor thin film transistors.

    Gate driver and display device including the same
    65.
    发明授权
    Gate driver and display device including the same 有权

    公开(公告)号：US11984083B2

    公开(公告)日：2024-05-14

    申请号：US17246328

    申请日：2021-04-30

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hai Jung In ,  Ji Hyun Ka ,  Tae Hoon Kwon ,  Ki Myeong Eom ,  Chae Han Hyun

    IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3275

    CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2300/0809 ,  G09G2320/0209 ,  G09G2320/0233 ,  G09G2330/021

    Abstract: A gate driver includes a stage configured to output a gate signal, the stage including an input part configured to control a voltage of a first node and a voltage of a second node based on signals supplied to a first input terminal and a second input terminal, an output part configured to supply a voltage of a first power source or a voltage of a second power source as the gate signal to an output terminal based on a voltage of a third node and a voltage of a fourth node, a first signal processing part configured to supply the voltage of the second power source to the fourth node based on the voltage of the first node, or to electrically connect the second node and the fourth node through a fifth node based on a signal supplied to a third input terminal, and a second signal processing part including a first transistor connected between the third node and a sixth node to control the voltage of the third node based on an operation of the first transistor.

    Display device
    68.
    发明授权
    Display device 有权

    公开(公告)号：US11900871B2

    公开(公告)日：2024-02-13

    申请号：US18111303

    申请日：2023-02-17

    Applicant: Samsung Display Co., Ltd.

    Inventor： Ji Hyun Ka ,  Tae Hoon Kwon ,  Ki Myeong Eom ,  Chung Yi ,  Se Byung Chae ,  Deok Jun Choi ,  Moon Sang Hwang

    IPC: G09G3/3275 ,  G09G3/3225

    CPC classification number: G09G3/3225 ,  G09G3/3275 ,  G09G2320/0626

    Abstract: A display device including: a display region including a first pixel region, a second pixel region, and a third pixel region; a dummy region including a first dummy region disposed between the second pixel region and the third pixel region; first, second, and third pixels respectively arranged in the first pixel region, the second pixel region, and the third pixel region in a matrix of vertical lines and horizontal lines; a data converter configured to receive first image data including effective data corresponding to the display region and dummy data corresponding to the dummy region and generate second image data by converting a gray scale value of dummy data corresponding to at least one region of the first dummy region in the first image data into a predetermined first gray scale value, the first gray scale value being between a lowest gray scale value and a highest gray scale value.

    Display device
    69.
    发明授权
    Display device 有权

    公开(公告)号：US11830412B2

    公开(公告)日：2023-11-28

    申请号：US17953288

    申请日：2022-09-26

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kyong Hwan Oh ,  Ji Hyun Ka ,  Ki Myeong Eom ,  Hai Jung In ,  Jin Jeon ,  Won Kyu Kwak ,  Hyun Lee ,  Hwan Soo Jang ,  Jin Tae Jeong

    IPC: G09G3/3233 ,  G09G3/20

    CPC classification number: G09G3/2092 ,  G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2340/0435

    Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines.

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