公开(公告)号：US12057071B2

公开(公告)日：2024-08-06

申请号：US18219544

申请日：2023-07-07

Applicant: LG Display Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University

Inventor： Harkjin Kim ,  Kwanghwan Ji ,  Byong-Deok Choi ,  Bum Sik Kim ,  Dong-Young Kim ,  Yong Duck Kim ,  June Hee Lee

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/08

Abstract: Disclosed are a display device and a method for driving a pixel of the display device. The device and method is capable of securing a time to sense a threshold voltage of a driving transistor and of compensating for the threshold voltage during operation of the pixel. Each of a plurality of pixels has a 5T1C structure including first to fourth transistors and a driving transistor. The first to fourth transistors are configured to apply driving signals through first to fourth scan lines, respectively. Thus, even without increasing the number of driving signals applied to each pixel, a long time for sensing a threshold voltage of each pixel can be secured.

公开(公告)号：US09514673B2

公开(公告)日：2016-12-06

申请号：US14065131

申请日：2013-10-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Jae Wook Kwon ,  Bum Sik Kim ,  Kil Hwan Oh ,  Hye Mi Oh

IPC: G09G3/30 ,  G09G3/32 ,  H01L27/32

CPC classification number: G09G3/3291 ,  G09G3/3208 ,  G09G3/3266 ,  G09G2300/0408 ,  G09G2300/0413 ,  G09G2300/0426 ,  G09G2310/0272 ,  G09G2320/0223 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2330/04 ,  H01L27/3223 ,  H01L27/3276

Abstract: Discussed is an organic light emitting display device. The organic light emitting display device includes a first substrate configured to include an active area including a plurality of pixels and upper, lower, left, and right inactive areas defined near the active area, and a second substrate facing-coupled to the first substrate. The first substrate includes a plurality of data lines and a plurality of gate lines formed in the active area, a plurality of driving power lines formed in parallel with the plurality of data lines to supply a driving voltage to the pixels, a cathode electrode layer connected to the pixels in common to supply a cathode voltage to the pixels, a plurality of driving power pads provided in each of the upper and lower inactive areas, and a plurality of cathode connection parts provided in each of the left and right inactive areas.

Abstract translation: 讨论的是有机发光显示装置。 有机发光显示装置包括：第一基板，其被配置为包括有源区域，该有源区域包括多个像素以及在有源区域附近限定的上，下，左，右和右非有源区域以及面对耦合到第一基板的第二基板。 所述第一基板包括形成在所述有源区域中的多条数据线和多条栅极线，与所述多条数据线并联形成的多条驱动电力线，以向所述像素提供驱动电压，连接的阴极电极层 耦合到像素以向像素提供阴极电压，设置在上部和下部无效区域中的每一个中的多个驱动电源焊盘以及设置在左侧和右侧无源区域中的每一个中的多个阴极连接部件。

公开(公告)号：US10395601B2

公开(公告)日：2019-08-27

申请号：US15347432

申请日：2016-11-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Jae Wook Kwon ,  Bum Sik Kim ,  Kil Hwan Oh ,  Hye Mi Oh

IPC: G09G3/3291 ,  G09G3/3208 ,  H01L27/32 ,  G09G3/3266

Abstract: An organic light emitting display device is discussed. The organic light emitting display device includes a first substrate including an active area that includes a plurality of pixels, and including upper, lower, left, and right inactive areas. The first substrate includes a plurality of data lines and a plurality of gate lines; a plurality of driving power lines; a cathode electrode layer; a plurality of driving power pads; a plurality of cathode connection parts provided in each of the left and right inactive areas; a first common driving power line; a second common driving power line; and a plurality of cathode power pads. Each of the first and second common driving power lines includes a plurality of divided common division lines. The plurality of driving power lines are grouped into a plurality of driving power line groups to be connected to a corresponding common division line.

公开(公告)号：US09842546B2

公开(公告)日：2017-12-12

申请号：US14459897

申请日：2014-08-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Bum Sik Kim ,  Seung Tae Kim

IPC: G09G3/30 ,  G09G3/3291 ,  G09G3/3233

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/045

Abstract: Discussed is an organic light emitting display device. The organic light emitting display device in one embodiment includes a plurality of pixels configured to each include an organic light emitting device which emits light with a data current, and a pixel circuit that includes a driving transistor which supplies the data current, which is based on a difference voltage between a data voltage and a reference voltage, to the organic light emitting device, a plurality of data lines configured to respectively supply a plurality of the data voltages to the plurality of pixels, a plurality of gate lines configured to supply a gate signal to the pixels, and a plurality of reference lines connected to at least one of the pixels, and configured to supply the reference voltage to the connected pixel. The reference voltage is varied according to data of a pixel connected to a corresponding reference line.

公开(公告)号：US09070646B2

公开(公告)日：2015-06-30

申请号：US13685083

申请日：2012-11-26

Applicant: LG Display Co., Ltd.

Inventor： Won Kyu Ha ,  Bum Sik Kim ,  Kil Hwan Oh

IPC: H01L29/08 ,  H01L27/32 ,  G09G3/32

CPC classification number: H01L27/3262 ,  G09G3/3233 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2330/021

Abstract: Disclosed is an organic light-emitting display device defined into a non-display area and a display area which is provided with pixels. Each of the pixels includes: first through fourth nodes; an organic light emission element connected to the fourth node; a drive transistor disposed between the second, third, and fourth nodes and configured to generate a drive current which drives the organic light emission element to emit light; a storage capacitor disposed between the first and third nodes; first through fifth transistors; wherein the fifth transistor is disposed between the second node with the non-display area and a reference voltage line and configured to control an initialization of the second node.

Abstract translation: 公开了一种限定在非显示区域中的有机发光显示装置和设置有像素的显示区域。 每个像素包括：第一至第四节点; 连接到第四节点的有机发光元件; 驱动晶体管，其设置在所述第二，第三和第四节点之间，并且被配置为产生驱动所述有机发光元件发光的驱动电流; 设置在第一和第三节点之间的存储电容器; 第一至第五晶体管; 其中所述第五晶体管被布置在具有所述非显示区域的所述第二节点和参考电压线之间，并且被配置为控制所述第二节点的初始化。

公开(公告)号：US20240029651A1

公开(公告)日：2024-01-25

申请号：US18219544

申请日：2023-07-07

Applicant: LG Display Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University

Inventor： Harkjin Kim ,  Kwanghwan Ji ,  Byong-Deok Choi ,  Bum Sik Kim ,  Dong-Young Kim ,  Yong Duck Kim ,  June Hee Lee

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

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/08 ,  G09G2300/0842

Abstract: Disclosed are a display device and a method for driving a pixel of the display device. The device and method is capable of securing a time to sense a threshold voltage of a driving transistor and of compensating for the threshold voltage during operation of the pixel. Each of a plurality of pixels has a 5T1C structure including first to fourth transistors and a driving transistor. The first to fourth transistors are configured to apply driving signals through first to fourth scan lines, respectively. Thus, even without increasing the number of driving signals applied to each pixel, a long time for sensing a threshold voltage of each pixel can be secured.

公开(公告)号：US09489895B2

公开(公告)日：2016-11-08

申请号：US15134346

申请日：2016-04-20

Applicant: LG Display Co., Ltd.

Inventor： Seung Tae Kim ,  Bum Sik Kim

IPC: G09G3/3258 ,  G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0465 ,  G09G2310/0272 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2330/028

Abstract: An organic light-emitting display device having a signal line that is shared by a first column of pixels and a second column of pixels to transmit a data signal and a sensing signal. The organic light-emitting display device includes a plurality of columns of pixels, and a plurality of signal lines extending between the plurality of columns of pixels. Each of the plurality of signal lines is configured to transmit a data signal from a data driver to the first column of pixels at first times. The data signals control the operation of an organic light-emitting element in the first column of pixels. The same signal line transmits a sensing signal from the second column of pixels to the data driver at second times. The sensing signal represents a variable property of an electrical component in a pixel of the second column of pixels.

Abstract translation: 一种有机发光显示装置，具有由第一列像素共享的信号线和第二列像素，用于发送数据信号和感测信号。 有机发光显示装置包括多列像素，以及在多列像素之间延伸的多条信号线。 多个信号线中的每一个被配置为在第一次将数据信号从数据驱动器发送到第一列像素。 数据信号控制第一列像素中的有机发光元件的操作。 相同的信号线在第二时间将来自第二列像素的感测信号传输到数据驱动器。 感测信号表示第二列像素的像素中的电气部件的可变特性。

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：US20140139510A1

公开(公告)日：2014-05-22

申请号：US14069561

申请日：2013-11-01

Applicant: LG Display Co., Ltd.

Inventor： In Hyo Han ,  Bum Sik Kim ,  Young Jun Hong

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043

Abstract: An organic light emitting display device includes a panel driver and a display panel including a plurality of pixels having a pixel circuit, a first driving voltage terminal connected to the driving transistor, a light emitting element, a second driving voltage terminal connected to the light emitting element, and a capacitor connected between a gate and source electrode of the driving transistor, the panel driver to drive the pixel circuit in a data charging period in which a difference between a data and reference voltage is charged into the capacitor, and a light emitting period in which the driving transistor receives a first driving voltage from the first driving voltage terminal and is turned on according to the voltage charged into the capacitor during the data charging period, whereby a current is supplied to the light emitting element which thereby emits light.

Abstract translation: 有机发光显示装置包括面板驱动器和显示面板，显示面板包括具有像素电路的多个像素，连接到驱动晶体管的第一驱动电压端子，发光元件，连接到发光元件的第二驱动电压端子 元件和连接在驱动晶体管的栅极和源极之间的电容器，面板驱动器，用于在将数据和参考电压之间的差被充电到电容器中的数据充电时段中驱动像素电路，以及发光 其中所述驱动晶体管从所述第一驱动电压端接收第一驱动电压，并且在所述数据充电期间根据在所述电容器中充电的电压而导通，从而向所述发光元件提供电流，从而发光。

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。