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    Pixel Circuit and Method for Driving Thereof, and Organic Light Emitting Display Device Using the Same
    22.
    发明申请
    Pixel Circuit and Method for Driving Thereof, and Organic Light Emitting Display Device Using the Same 有权
    像素电路及其驱动方法，以及使用其的有机发光显示装置

    公开(公告)号：US20140084805A1

    公开(公告)日：2014-03-27

    申请号：US13709235

    申请日：2012-12-10

    申请人： LG DISPLAY CO., LTD.

    发明人： Hyoung-Su Kim ,  Bu Yeol Lee ,  Jin-Hyun Jung

    IPC分类号： H05B37/02

    CPC分类号： H05B37/02 ,  G09G3/2048 ,  G09G3/3233 ,  G09G2300/043 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2300/0876 ,  G09G2320/0233 ,  G09G2360/126

    摘要： Disclosed is a pixel circuit which facilitates to compensate a threshold voltage of a driving transistor for controlling an operation state of a light emitting device, and a method for driving thereof and an organic light emitting display device using the same, wherein the pixel circuit includes a light emitting device including an organic light emitting cell; a driving transistor which controls an operation of the light emitting device according to a voltage applied between gate and source terminals; a capacitor including first and second terminals; a switching unit which initializes the capacitor during a current horizontal period, stores a sampling voltage in the capacitor, and makes the light emitting device emit light on the basis of the sampling voltage stored in the capacitor whenever the data voltage and reference voltage are supplied to the data line after the current horizontal period.

    摘要翻译： 公开了一种有助于补偿用于控制发光器件的操作状态的驱动晶体管的阈值电压的像素电路及其驱动方法和使用其的有机发光显示器件，其中像素电路包括： 包括有机发光单元的发光器件; 驱动晶体管，其根据施加在栅极和源极端子之间的电压来控制所述发光器件的操作; 包括第一和第二端子的电容器; 在电流水平周期期间初始化电容器的开关单元，在电容器中存储采样电压，并且只要将数据电压和参考电压提供给基于存储在电容器中的采样电压，就使发光器件发光 数据线在当前水平周期后。

    Display device with auxiliary electrode in trench
    24.
    发明授权
    Display device with auxiliary electrode in trench 有权

    公开(公告)号：US11917877B2

    公开(公告)日：2024-02-27

    申请号：US18151862

    申请日：2023-01-09

    申请人： LG Display Co., Ltd.

    发明人： Jonghyeok Im ,  Hyoung-Su Kim ,  Gyungmin Kim

    IPC分类号： H10K59/131 ,  H10K50/84 ,  H10K50/856 ,  H10K59/35 ,  H10K59/38

    CPC分类号： H10K59/131 ,  H10K50/84 ,  H10K50/856 ,  H10K59/35 ,  H10K59/38

    摘要： A display device includes a substrate provided with a plurality of pixels, a circuit element layer provided on the substrate and provided with an auxiliary electrode, an insulating layer provided on the circuit element layer and provided with a plurality of connection electrodes spaced apart from one another and a first trench, a fence structure provided on the plurality of connection electrodes, an organic light emitting layer provided on the fence structure, and a second electrode arranged on the organic light emitting layer, wherein the plurality of connection electrodes are electrically connected with the auxiliary electrode, at least one of the plurality of connection electrodes is exposed from the first trench, and the second electrode is in contact with a connection electrode exposed from the first trench. Therefore, a luminance difference between an outer portion of a panel and a center portion of the panel may be reduced.

    Organic light emitting display apparatus
    25.
    发明授权
    Organic light emitting display apparatus 有权

    公开(公告)号：US11758778B2

    公开(公告)日：2023-09-12

    申请号：US17122599

    申请日：2020-12-15

    申请人： LG Display Co., Ltd.

    发明人： Hyoung-Su Kim ,  Hyeseon Eom ,  Doohyun Yoon

    IPC分类号： H10K59/131 ,  G09G3/3258 ,  G09G3/3291 ,  H10K59/65

    CPC分类号： H10K59/131 ,  G09G3/3258 ,  G09G3/3291 ,  H10K59/65

    摘要： An organic light emitting display apparatus includes an organic light emitting display panel including a display area, including a transparent area and an opaque area, and a non-display area, a gate driver sequentially supplying a gate pulse to a plurality of gate lines included in the organic light emitting display panel, and an initialization unit transferring gate pulses and/or initialization control signals, output from the gate driver, to a plurality of transparent area gate lines. A camera photographing a region in a forward direction with respect to the organic light emitting display panel is provided in the transparent area of a rear surface of the organic light emitting display panel. A first pixel driving circuit provided in the transparent area includes two transistors, and a second pixel driving circuit provided in the opaque area includes at least three transistors.

    Pixel and light emitting display apparatus comprising the same
    26.
    发明授权
    Pixel and light emitting display apparatus comprising the same 有权

    公开(公告)号：US11037486B2

    公开(公告)日：2021-06-15

    申请号：US16661274

    申请日：2019-10-23

    申请人： LG Display Co., Ltd.

    发明人： Hyoung-Su Kim

    IPC分类号： G09G3/32

    摘要： A pixel is provided that has an internal compensation circuit capable of compensating for a threshold voltage of a driving transistor without loss of a data voltage and a light emitting display apparatus including the same. The pixel includes a light emitting device and a pixel circuit connected to the light emitting device. The pixel circuit includes a driving transistor including first and second gate electrodes, a source electrode, and a drain electrode, a first capacitor formed between the first gate electrode and the source electrode of the driving transistor, a second capacitor formed between the second gate electrode and the source electrode of the driving transistor, and a switching circuit connected to the first and second gate electrodes, the source electrode, and the drain electrode of the driving transistor and operating in order of a first to a fourth period.

    Transparent display device
    27.
    发明授权
    Transparent display device 有权

    公开(公告)号：US09773849B2

    公开(公告)日：2017-09-26

    申请号：US15202016

    申请日：2016-07-05

    申请人： LG DISPLAY CO., LTD.

    发明人： EuiTae Kim ,  Namwook Cho ,  Hyoung-Su Kim ,  DooHyun Yoon

    IPC分类号： H01L27/32 ,  H01L51/52

    CPC分类号： H01L27/3246 ,  H01L27/3216 ,  H01L27/3218 ,  H01L27/326 ,  H01L27/3276 ,  H01L51/5234 ,  H01L51/5284 ,  H01L2251/5323

    摘要： Disclosed is a transparent display device that includes a plurality of column lines and a plurality of horizontal lines crossing each other to define a plurality of pixel regions in a matrix, each column line including at least two data lines and a voltage line, and each horizontal line including a gate line; a first transparent electrode in each emission region; a transparent organic light emitting layer on the first electrode; and a second transparent electrode on the organic light emitting layer, wherein each pixel region includes a transmissive region and a circuit region, and wherein the transmissive region includes at least two emission regions that are divided by a first transparent bank pattern.