公开(公告)号：US20220189400A1

公开(公告)日：2022-06-16

申请号：US17538404

申请日：2021-11-30

Applicant: LG Display Co., Ltd.

Inventor： Yu Min Hong ,  Tae Wook Kim ,  Jung Hyeon Kim

IPC: G09G3/3233 ,  G09G3/3275

Abstract: Electroluminescent display devices and a method for driving the same are disclosed. An electroluminescent display device according to an embodiment of the present disclosure includes a display panel including a plurality of pixels emitting light according to image data, a first memory storing a stress accumulation value corresponding to the image data, and a compensation gain calculation circuit configured to increase a compensation gain for compensating for the image data on the basis of the stress accumulation value, wherein the stress accumulation value in the first memory is reset whenever the compensation gain increases.

公开(公告)号：US09111489B2

公开(公告)日：2015-08-18

申请号：US14085368

申请日：2013-11-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Jeong Hyo Park ,  Bum Sik Kim ,  Jung Hyeon Kim

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/043 ,  G09G2310/0251 ,  G09G2320/045 ,  G09G2320/0606

Abstract: Disclosed are an organic light emitting display device and a method of driving the same. The organic light emitting display device includes a display panel including a plurality of pixels including a pixel circuit for emitting light from an organic light emitting diode and a driving circuit unit driving the display panel. The driving method includes sensing a characteristic of a driving TFT of each of the pixels of the display panel to generate sensing data according to a user's setting using an input device, at a predetermined compensation driving time, or when an error occurs in sensing data generated by real-time sensing of each pixel of the display panel, and compensating for the characteristic of the driving TFT of each pixel by using the sensing data.

Abstract translation: 公开了一种有机发光显示装置及其驱动方法。 有机发光显示装置包括：显示面板，包括多个像素，包括用于发射来自有机发光二极管的光的像素电路和驱动显示面板的驱动电路单元。 驱动方法包括：以预定的补偿驱动时间，或者当产生的感测数据发生错误时，感测显示面板的每个像素的驱动TFT的特征，以根据使用输入装置的用户设置生成感测数据 通过实时感测显示面板的每个像素，并且通过使用感测数据来补偿每个像素的驱动TFT的特性。

公开(公告)号：US11699398B2

公开(公告)日：2023-07-11

申请号：US17505523

申请日：2021-10-19

Applicant: LG Display Co., Ltd.

Inventor： Seok Hyun Hong ,  Seong En Lee ,  Jung Hyeon Kim

IPC: G09G3/3266 ,  H10K50/11 ,  H10K59/12

CPC classification number: G09G3/3266 ,  H10K50/11 ,  H10K59/12 ,  G09G2320/0233

Abstract: An electroluminescent display device includes a pixel configured to display an image based on a difference between a display data voltage and a first reference voltage, a driving voltage generation circuit configured to supply the display data voltage to the pixel through a data line, and a sensing circuit configured to supply the first reference voltage to the pixel through a sensing line. The sensing circuit includes a sensing channel terminal coupled to the sensing line, a switch coupled between the sensing channel terminal and an input terminal for the first reference voltage, and a sampling circuit configured to sense a voltage of the sensing line which has changed from the first reference voltage independent of driving characteristics of the pixel in a vertical blank period in which the switch is turned off.

公开(公告)号：US10217418B2

公开(公告)日：2019-02-26

申请号：US14972398

申请日：2015-12-17

Applicant: LG Display Co., Ltd.

Inventor： Tae Gung Kim ,  Jung Hyeon Kim

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3225

Abstract: An organic light emitting diode display device is disclosed which adjusts brightnesses and color temperatures of RGBW data signals and matches the brightnesses of organic light emitting diodes and the color temperature of a white organic light emitting diode with the target brightness value and the target color temperature of a white pixel. As such, an overcompensation and the reduction of a lifespan can be prevented. Also, relatively high brightness and color temperature can be maintained.

公开(公告)号：US11881166B2

公开(公告)日：2024-01-23

申请号：US17538404

申请日：2021-11-30

Applicant: LG Display Co., Ltd.

Inventor： Yu Min Hong ,  Tae Wook Kim ,  Jung Hyeon Kim

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/045

Abstract: Electroluminescent display devices and a method for driving the same are disclosed. An electroluminescent display device according to an embodiment of the present disclosure includes a display panel including a plurality of pixels emitting light according to image data, a first memory storing a stress accumulation value corresponding to the image data, and a compensation gain calculation circuit configured to increase a compensation gain for compensating for the image data on the basis of the stress accumulation value, wherein the stress accumulation value in the first memory is reset whenever the compensation gain increases.

公开(公告)号：US11562671B2

公开(公告)日：2023-01-24

申请号：US17538139

申请日：2021-11-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Jung Hyeon Kim ,  Tae Wook Kim ,  Seok Hyun Hong

IPC: G09G3/20 ,  G09G3/00

Abstract: An electroluminescent display device includes a display panel including a plurality of pixels, a first compensation value calculator for calculating a first compensation value based on prediction according to an accumulation result of video data to be written in the pixels, a second compensation value calculator for calculating a second compensation value based on sensing according to an electrical sensing value with respect to driving characteristics of the pixels, and a data corrector for correcting the video data based on the first compensation value and the second compensation value.

公开(公告)号：US09489888B2

公开(公告)日：2016-11-08

申请号：US14100894

申请日：2013-12-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Jung Hyeon Kim ,  Bum Sik Kim ,  Seung Tae Kim ,  Myung-Gi Lim

IPC: G06F3/038 ,  G09G5/00 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2360/16

Abstract: A method of driving an organic light emitting display device includes sensing characteristics of driving TFTs of pixels to generate sensing data at a power-on time when the organic light emitting display device is powered on, merging initial compensation data and the sensing data at the power-on time to compensate for the characteristics of the driving TFTs of all the pixels, displaying an image in a driving mode and sequentially sensing characteristics of driving TFTs of a plurality of pixels in units of one horizontal line in real time during a blank interval between frames, and sequentially compensating for the characteristics of the driving TFTs of the pixels in units of one horizontal line in real time by using a real-time sensing data generated by real-time sensing.

Abstract translation: 一种驱动有机发光显示装置的方法包括：检测像素的驱动TFT的特性，以在有机发光显示装置通电时的通电时产生感测数据，并将初始补偿数据和感测数据以功率合并 以补偿所有像素的驱动TFT的特性，以驱动模式显示图像，并且在空白间隔期间实时地依次感测以一个水平线为单位的多个像素的驱动TFT的特性 并且通过使用由实时感测产生的实时感测数据实时地以一个水平线为单位顺序地补偿像素的驱动TFT的特性。

公开(公告)号：US20140176516A1

公开(公告)日：2014-06-26

申请号：US14100894

申请日：2013-12-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Jung Hyeon Kim ,  Bum Sik Kim ,  Seung Tae Kim ,  Myung-Gi Lim

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2360/16

Abstract: A method of driving an organic light emitting display device includes sensing characteristics of driving TFTs of pixels to generate sensing data at a power-on time when the organic light emitting display device is powered on, merging initial compensation data and the sensing data at the power-on time to compensate for the characteristics of the driving TFTs of all the pixels, displaying an image in a driving mode and sequentially sensing characteristics of driving TFTs of a plurality of pixels in units of one horizontal line in real time during a blank interval between frames, and sequentially compensating for the characteristics of the driving TFTs of the pixels in units of one horizontal line in real time by using a real-time sensing data generated by real-time sensing.

Abstract translation: 一种驱动有机发光显示装置的方法包括：检测像素的驱动TFT的特性，以在有机发光显示装置通电时的通电时产生感测数据，并将初始补偿数据和感测数据以功率合并 以补偿所有像素的驱动TFT的特性，以驱动模式显示图像，并且在空白间隔期间实时地依次感测以一个水平线为单位的多个像素的驱动TFT的特性 并且通过使用由实时感测产生的实时感测数据实时地以一个水平线为单位顺序地补偿像素的驱动TFT的特性。

公开(公告)号：US20140176400A1

公开(公告)日：2014-06-26

申请号：US14085368

申请日：2013-11-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Jeong Hyo Park ,  Bum Sik Kim ,  Jung Hyeon Kim

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/043 ,  G09G2310/0251 ,  G09G2320/045 ,  G09G2320/0606

Abstract: Disclosed are an organic light emitting display device and a method of driving the same. The organic light emitting display device includes a display panel including a plurality of pixels including a pixel circuit for emitting light from an organic light emitting diode and a driving circuit unit driving the display panel. The driving method includes sensing a characteristic of a driving TFT of each of the pixels of the display panel to generate sensing data according to a user's setting using an input device, at a predetermined compensation driving time, or when an error occurs in sensing data generated by real-time sensing of each pixel of the display panel, and compensating for the characteristic of the driving TFT of each pixel by using the sensing data.

Abstract translation: 公开了一种有机发光显示装置及其驱动方法。 有机发光显示装置包括：显示面板，包括多个像素，包括用于发射来自有机发光二极管的光的像素电路和驱动显示面板的驱动电路单元。 驱动方法包括：以预定的补偿驱动时间，或者当产生的感测数据发生错误时，感测显示面板的每个像素的驱动TFT的特征，以根据使用输入装置的用户设置生成感测数据 通过实时感测显示面板的每个像素，并且通过使用感测数据来补偿每个像素的驱动TFT的特性。

公开(公告)号：US10339861B2

公开(公告)日：2019-07-02

申请号：US14980871

申请日：2015-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Tae Gung Kim ,  Jung Hyeon Kim

IPC: G09G3/3233

Abstract: An organic light emitting diode display device according to an embodiment includes pixels each configured with an organic light emitting diode and a driving switch used to control a current flowing through the organic light emitting diode. The organic light emitting diode display device compensates a deterioration property of the organic light emitting diode after properties of the driving switch is compensated. As such, the deterioration property of the organic light emitting diode can be maximally reflected to a sensing data. In accordance therewith, the deterioration property of the organic light emitting diode can be accurately compensated.