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    Display device
    21.
    发明授权
    Display device 有权

    公开(公告)号：US11830405B2

    公开(公告)日：2023-11-28

    申请号：US17719289

    申请日：2022-04-12

    Applicant: Samsung Display Co., LTD.

    Inventor： Jae Hoon Lee ,  Kyung Sik Joo ,  Sang Myeon Han

    IPC: G09G3/20

    CPC classification number: G09G3/2007 ,  G09G2320/0233 ,  G09G2320/041 ,  G09G2320/045 ,  G09G2360/16

    Abstract: A display device includes: a display panel including a plurality of pixels; a deterioration compensator that outputs compensation data based on a lifetime value of the plurality of pixels and an input grayscale of input image data; a scan driver that supplies a scan signal to the display panel; and a data driver that supplies a data signal corresponding to the compensation data to the display panel. The deterioration compensator includes a grayscale-current converter that calculates an input current corresponding to the input grayscale.

    Display device and driving method thereof
    22.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US11170703B2

    公开(公告)日：2021-11-09

    申请号：US17017259

    申请日：2020-09-10

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jae Hoon Lee ,  Sang Myeon Han ,  Jong Wook Kim ,  Byoung Kwan An

    IPC: G09G3/32

    Abstract: There are provided a display device, driving method and sensing unit thereof, where a display device includes a display unit having pixels connected to signal lines; a sensing unit including at least one current sensor connected to at least one of the signal lines; and a compensator connected between the sensing unit and the display unit, wherein the compensator is configured to: calculate degradation weights for positions of the pixels, based on a sensing current measured by the sensing unit and a predetermined reference current value, update degradation accumulated values for the positions whenever the sensing current is measured, by accumulating degradation degrees in which the degradation weights are reflected, generate compensated grayscale values by compensating input grayscale values based on the updated degradation accumulated values, and output the compensated grayscale values to the pixels.

    Scan driver and display device having the same
    24.
    发明授权
    Scan driver and display device having the same 有权

    公开(公告)号：US11056058B2

    公开(公告)日：2021-07-06

    申请号：US16427359

    申请日：2019-05-31

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae Hoon Lee ,  Kuk Hwan Ahn ,  Seok Ha Hong

    IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

    Abstract: An nth (where n is a natural number) stage is included in a scan driver of a display. The nth stage includes: a first input circuit for controlling a voltage of a first node in response to a carry signal of a previous stage; a second input circuit for controlling the voltage of the first node in response to a carry signal of a next stage; a first control circuit for controlling a voltage of an output terminal in response to the carry signal of the next stage; an output circuit for outputting an nth scan signal and an nth carry signal in response to the voltage of the first node and a voltage of a second node; and a leakage control circuit for supplying a control voltage to the first input circuit and the second input circuit in response to one of the nth scan signal and the nth carry signal.

    Display device, and method of determining a power supply voltage
    25.
    发明授权
    Display device, and method of determining a power supply voltage 有权

    公开(公告)号：US10971065B2

    公开(公告)日：2021-04-06

    申请号：US15930965

    申请日：2020-05-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seokha Hong ,  Sang Myeon Han ,  Jae Hoon Lee

    IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3275

    Abstract: A display device includes a display panel including first, second, and third color sub-pixels, a data driver, a scan driver, a power supply to provide a power supply voltage to the display panel, and a controller. The controller includes a pure color index calculator to calculate first through third pure color indexes of first through third sub-pixel data, a pure color index histogram generator to generate first through third high pure color index histograms, and first through third low pure color index histograms, a histogram analyzer to determine first through third effective maximum gray levels for the first through third color sub-pixels according to the first through third high pure color index histograms and the first through third low pure color index histograms, and a power supply voltage controller to determine a voltage level of the power supply voltage according to the first through third effective maximum gray levels.

    Anti-flicker display device
    26.
    发明授权
    Anti-flicker display device 有权

    公开(公告)号：US10586507B2

    公开(公告)日：2020-03-10

    申请号：US15935812

    申请日：2018-03-26

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jae Hoon Lee ,  Jai Hyun Koh ,  Heen Dol Kim ,  Bong Hyun You ,  Soo Yeon Lee ,  Seok Ha Hong

    IPC: G09G3/30 ,  G09G3/36 ,  G09G5/10

    Abstract: A display device may include display pixels configured to emit light at a luminance corresponding to a data signal, at least one auxiliary pixel configured to store an auxiliary voltage, a gate driver configured to supply a gate signal to the display pixels and the auxiliary pixel, a data driver configured to convert image data into the data signal, and supply an auxiliary voltage having a preset level to the auxiliary pixel. A sensing circuit is configured to sense a change in the auxiliary pixel for each frame, and generate compensation voltage information. A timing controller is configured to convert an image signal into the image data, and generate a driving voltage control signal. A voltage generation unit is configured to generate a driving voltage corresponding to the driving voltage control signal, and generate the reference gamma voltage based on the driving voltage.

    Organic light-emitting display device
    28.
    发明授权
    Organic light-emitting display device 有权
    有机发光显示装置

    公开(公告)号：US09570006B2

    公开(公告)日：2017-02-14

    申请号：US14513086

    申请日：2014-10-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae Woo Song ,  Jae Hoon Lee ,  Mi Young Kim ,  Do Hyung Ryu ,  Hae Goo Jung

    IPC: G09G3/32 ,  G09G3/20

    CPC classification number: G09G3/3233 ,  G09G3/2022 ,  G09G2310/0251

    Abstract: An organic light-emitting display device which divides each frame into a plurality of sub-frames and represents gray levels based on the sum of the lengths of one or more sub-frames during which light is emitted, the organic light-emitting display device comprising a display unit including a plurality of pixels arranged in a matrix, a scan driver configured to provide a scan signal to the display unit during each sub-frame period and a precharge voltage unit configured to provide a precharge voltage to the pixels, wherein the pixels are divided into a first pixel column block including a pixel receiving the scan signal before the other pixels and a second pixel column block next to the first pixel column block in a direction of the application of the scan signal and the precharge voltage is selectively provided to pixels included in the first pixel column block.

    Abstract translation: 一种有机发光显示装置，其将每帧划分为多个子帧，并且基于发射光的一个或多个子帧的长度之和来表示灰度级，所述有机发光显示装置包括： 显示单元，其包括以矩阵形式排列的多个像素;扫描驱动器，被配置为在每个子帧周期期间向所述显示单元提供扫描信号;以及预置电压单元，被配置为向所述像素提供预充电电压，其中所述像素 被分成包括在其它像素之前接收扫描信号的像素和在施加扫描信号的方向上与第一像素列块相邻的第二像素列块的第一像素列块，并且预选电压被选择性地提供给 包括在第一像素列块中的像素。

    ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME
    30.
    发明申请
    ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME 审中-公开
    有机发光显示装置及其驱动方法

    公开(公告)号：US20150287353A1

    公开(公告)日：2015-10-08

    申请号：US14464674

    申请日：2014-08-20

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jae Woo Song ,  Jae Hoon Lee ,  Do Hyung Ryu ,  Hae Goo Jung

    IPC: G09G3/20 ,  G09G3/32

    CPC classification number: G09G3/2022 ,  G09G3/3258 ,  G09G2310/027

    Abstract: An organic light emitting display device is configured to divide one frame into a plurality of sub-frames and to express gradations based on a sum of light emitting times of the plurality of sub-frames, the organic light emitting display device includes: a driving unit configured to provide at least two on-voltages having different voltage values; and a display unit comprising a plurality of organic light emitting elements configured to be driven by the on-voltages.

    Abstract translation: 有机发光显示装置被配置为将一帧划分成多个子帧并且基于多个子帧的发光时间之和来表示灰度，所述有机发光显示装置包括：驱动单元 被配置为提供具有不同电压值的至少两个导通电压; 以及显示单元，包括被配置为由所述导通电压驱动的多个有机发光元件。

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