公开(公告)号：US20150187249A1

公开(公告)日：2015-07-02

申请号：US14460528

申请日：2014-08-15

Applicant: LG Display Co., Ltd.

Inventor： Ryosuke TANI ,  Joonmin PARK ,  Shinji TAKASUGI

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2003 ,  G09G3/006 ,  G09G3/3208 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0452 ,  G09G2300/0804 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2330/08 ,  G09G2330/10 ,  G09G2330/12 ,  G09G2360/16 ,  H01L2251/568

Abstract: A method for repairing an organic light emitting display having a plurality of unit pixels each including a white subpixel is provided. The method includes detecting a defective white subpixel by checking circuit units of the white subpixels, connecting a circuit unit of a neighboring subpixel positioned adjacent to the defective white subpixel in the unit pixel with a light emitting unit of the defective white subpixel using a repair conductive pattern, storing a repair position to which the repair conductive pattern is connected, and compensating for digital video data that will be input to the repair position.

Abstract translation: 提供一种用于修复具有包括白色子像素的多个单位像素的有机发光显示器的方法。 该方法包括通过检查白色子像素的电路单元来检测有缺陷的白色子像素，使用修复导电将缺陷白色子像素的发光单元与单位像素中的有缺陷的白色子像素相邻的相邻子像素的电路单元连接 存储维修导电图案所连接的维修位置，并补偿将输入到维修位置的数字视频数据。

公开(公告)号：US20150187268A1

公开(公告)日：2015-07-02

申请号：US14533937

申请日：2014-11-05

Applicant: LG DISPLAY CO., LTD.

Inventor： Ryosuke TANI ,  Sungjin HONG ,  Woojin NAM ,  Joonmin PARK ,  Seonmi LEE ,  Inyoung YANG ,  Jongho LEE

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2310/0254 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

Abstract: An organic light emitting display includes a display panel including display lines, on which a plurality of pixels each including an organic light emitting diode and a driving thin film transistor (TFT) are formed. The display lines are sequentially charged to an image display data voltage in response to an image display gate pulse in an image display period of one frame. A sensing target display line among the display lines outputs a sensing voltage corresponding to changes in electrical characteristic of the driving TFT included in each pixel in response to a sensing gate pulse during a vertical blank period excluding the image display period from the one frame and then is charged to a luminance recovery data voltage. The sensing gate pulse is supplied in the same pulse shape as the image display gate pulse in a predetermined period for charging the luminance recovery data voltage.

Abstract translation: 有机发光显示器包括：显示面板，包括显示线，其上形成有包括有机发光二极管和驱动薄膜晶体管（TFT）的多个像素。 响应于一帧的图像显示周期中的图像显示门脉冲，显示线被顺序地充电到图像显示数据电压。 显示行之间的检测目标显示行响应于在从一帧除去图像显示周期之外的垂直空白时段期间的感测门脉冲，输出对应于包括在每个像素中的驱动TFT的电特性的变化的感测电压，然后 被充电到亮度恢复数据电压。 感测门脉冲以与图像显示门脉冲相同的脉冲形状被提供在用于对亮度恢复数据电压进行充电的预定周期中。

公开(公告)号：US20200035165A1

公开(公告)日：2020-01-30

申请号：US16521030

申请日：2019-07-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Joonmin PARK

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3233

Abstract: Various embodiments provide is an organic light emitting display device including a first pixel having a first organic light emitting diode (OLED) and a first driving transistor and a second pixel having a second OLED and a second driving transistor. The first pixel and the second pixel are electrically connected to a first data line. A source electrode of the first driving transistor is electrically connected to a first reference voltage line, and a source electrode of the second driving transistor is electrically connected to a second reference voltage line.

公开(公告)号：US20150187267A1

公开(公告)日：2015-07-02

申请号：US14533263

申请日：2014-11-05

Applicant: LG DISPLAY CO., LTD.

Inventor： Joonmin PARK ,  Jongsik SHIM

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2320/0295

Abstract: An organic light emitting display includes a display panel, on which a plurality of pixels each including an organic light emitting diode and a driving thin film transistor (TFT) controlling a current flowing in the organic light emitting diode are disposed, a timing controller configured to modulate input digital video data to compensate for changes in electric characteristic of the driving TFT, and a driving circuit unit configured to changes in electric characteristic of the driving TFT of each of specific pixels of the plurality of pixels in an image display period of each image frame and sequentially apply image display data to remaining pixels except the specific pixels along one direction in the image display period.

Abstract translation: 有机发光显示器包括显示面板，每个包括有机发光二极管的多个像素和控制在有机发光二极管中流动的电流的驱动薄膜晶体管（TFT）设置在该显示面板上，定时控制器被配置为 调制输入数字视频数据以补偿驱动TFT的电特性的变化;以及驱动电路单元，被配置为在每个图像的图像显示周期中改变多个像素中的每个特定像素的驱动TFT的电特性 并且在图像显示周期中沿着一个方向顺序地将图像显示数据应用于除特定像素之外的剩余像素。

公开(公告)号：US20200074932A1

公开(公告)日：2020-03-05

申请号：US16553034

申请日：2019-08-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Joonmin PARK ,  Shinji TAKASUGI

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

Abstract: Provided is a light emitting display device and a method of driving the same. The light emitting display device includes: a display panel in which pixel lines including a plurality of pixels are divided into at least one area A and at least one area B; a panel driver connected to the pixel line; and a timing controller for controlling operation of the panel driver to perform image data writing (IDW) driving for sequentially writing input image data to a plurality of pixel lines included in one of the area A and the area B and to perform sensing data writing (SDW) driving for writing sensing data to a pixel line included in one of the area A and the area B in a vertical blank period in which image data writing driving is not performed. The timing controller writes coupling compensation data during the vertical blank period. According to the present disclosure, a device can be realized in consideration of a sensing deviation that may be generated in a compensation operation for improving deterioration of elements included in a display panel and increasing the lifespan thereof.

公开(公告)号：US20180151636A1

公开(公告)日：2018-05-31

申请号：US15814236

申请日：2017-11-15

Applicant: LG Display Co., Ltd.

Inventor： Joonmin PARK ,  Sungjoon BAE

IPC: H01L27/32 ,  G09G3/3291 ,  G09G3/325 ,  G09G3/3283

CPC classification number: H01L27/3218 ,  G09G3/3233 ,  G09G3/325 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2320/0295 ,  G09G2320/0693 ,  H01L27/3258 ,  H01L27/3272 ,  H01L27/3276

Abstract: A data driver and a display device using the same are disclosed. The display device includes a display panel having a display area displaying an image, signal lines including data lines, first power lines, and sensing lines connected to the display panel, and a data driver connected to the signal lines. The data driver includes first channel groups outputting a data signal, second channel groups outputting and sensing a sensing voltage, and third channel groups outputting a high potential voltage. The first channel groups and the third channel groups are defined as a first output unit, and the second channel groups are defined as a second output unit. The second channel groups are successively disposed every M channels, where M is an integer equal to or greater than 2.

公开(公告)号：US20180151129A1

公开(公告)日：2018-05-31

申请号：US15717868

申请日：2017-09-27

Applicant: LG Display Co., Ltd.

Inventor： Joonmin PARK

IPC: G09G3/3291 ,  G09G3/3233

Abstract: An organic light emitting diode display and a compensation method of driving characteristics thereof are discussed. The organic light emitting diode display includes a first pixel connected to a reference voltage line and a first data line, a second pixel sharing the reference voltage line and connected to a second data line, a data driver configured to output a data voltage to first and second output channels during a display period and acquire a sensing voltage of the first and second pixels through the reference voltage line during a compensation period, a first switch connected between the first output channel and the first data line, and a second switch connected between the second output channel and the second data line. The second switch is turned off during a first compensation period for detecting driving characteristic of the first pixel.

公开(公告)号：US20180061293A1

公开(公告)日：2018-03-01

申请号：US15683699

申请日：2017-08-22

Applicant: LG Display Co., Ltd.

Inventor： Joonmin PARK

IPC: G09G3/00 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/006 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/043 ,  G09G2300/0452 ,  G09G2300/0866 ,  G09G2310/061 ,  G09G2320/0295 ,  G09G2330/021 ,  G09G2330/10 ,  G09G2330/12

Abstract: An organic light emitting display device includes a display panel, a data driver, and a scan driver. The display panel includes sub-pixels. The data driver supplies a data signal to the sub-pixels. The scan driver supplies a scan signal for controlling a switching transistor of each sub-pixel, and a sensing signal for controlling a sensing transistor of each sub-pixel. The sensing transistor has a turn-on time for detecting whether a short has occurred between at least two electrodes of a switching transistor in response to a sensing signal.