公开(公告)号：US20190035335A1

公开(公告)日：2019-01-31

申请号：US16030123

申请日：2018-07-09

Applicant: LG DISPLAY CO., LTD.

Inventor： Dongik KIM ,  Kyoungdon WOO

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

Abstract: An organic light emitting display and a method of sensing deterioration of the same are discussed. The organic light emitting display includes a display panel including a plurality of display lines, each of the display lines in which a plurality of pixels are arranged, each of the pixels including a light emitting element and a driving element, a panel driver configured to supply a gate signal and a data voltage synchronized with the gate signal to the pixels of the display lines, a sensing unit configured to sense driving characteristics of the pixels, and a timing controller configured to control operation timings of the panel driver and the sensing unit, and overlappingly shift a sensing driving sequence for at least some display lines in accordance with a line sequential manner.

公开(公告)号：US20170154573A1

公开(公告)日：2017-06-01

申请号：US15365200

申请日：2016-11-30

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyoungdon WOO ,  Chulwon LEE ,  Myunggi LIM ,  Juyoung NOH

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283

Abstract: An organic light-emitting display can include a display panel including sensing lines connected to pixels; a current integrator configured to receive current from a pixel through a sensing line connected to a first input terminal, receive a reference voltage through a reference voltage line connected to a second input terminal, and swap a path through which the current applied through the first input terminal flows and a path through which the reference voltage applied through the second input terminal is supplied; a sampling part including a first sample and hold circuit for sampling a first output voltage of the current integrator and a second sample and hold circuit for sampling a second output voltage of the current integrator, subsequent to the first output voltage, which outputs the first and second output voltages sampled by the first and second sample and hold circuits simultaneously through a single output channel.

公开(公告)号：US20160322001A1

公开(公告)日：2016-11-03

申请号：US15140094

申请日：2016-04-27

Applicant: LG Display Co., Ltd.

Inventor： Osung DO ,  Kyoungdon WOO ,  Seokhyun HONG

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2007 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/10

Abstract: A four-primary-color organic light emitting display comprises: a display panel where a plurality of first-color pixels, second-color pixels, third-color pixels, and fourth-color pixels are disposed; and a data drive circuit that has a single, digital-to-analog converter to generate first- to fourth-color data voltages and to apply the first-color data voltage to the first-color pixels, the second-color data voltage to the second-color pixels, the third-color data voltage to the third-color pixels, and the fourth-color data voltage to the fourth-color pixels. Herein, the maximum grayscale voltages for the first- to fourth-color data voltages are adjusted to be different on a single gamma graph defined as the input grayscale versus output voltage.

Abstract translation: 四原色有机发光显示器包括：显示面板，其中设置有多个第一颜色像素，第二彩色像​​素，第三颜色像素和第四颜色像素; 以及数据驱动电路，其具有单个数模转换器以产生第一至第四颜色数据电压并将第一颜色数据电压施加到第一颜色像素，将第二颜色数据电压施加到第一颜色数据电压 第二颜色像素，第三颜色数据电压到第三颜色像素，以及第四颜色数据电压到第四颜色像素。 这里，将第一至第四色数据电压的最大灰度电压调整为在被定义为输入灰度与输出电压的单个伽马图上不同。

公开(公告)号：US20160078805A1

公开(公告)日：2016-03-17

申请号：US14851154

申请日：2015-09-11

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyoungdon WOO ,  Myunggi LIM

IPC: G09G3/32 ,  G09G3/00

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

Abstract: An organic light emitting diode display is disclosed. The organic light emitting diode display includes a display panel including a plurality of pixels, a plurality of sensing units configured to integrate current information of the pixels through a plurality of sensing channels connected to sensing lines of the display panel and output a first sensing value, a reference sensing unit configured to integrate previously set reference current information and output a reference sensing value, a calculation block configured to calculate the first sensing value and the reference sensing value, remove a common noise component from the first sensing value, and output a second sensing value, and an analog-to-digital converter configured to convert the second sensing value into a digital sensing value.

Abstract translation: 公开了一种有机发光二极管显示器。 有机发光二极管显示器包括包括多个像素的显示面板，多个感测单元，被配置为通过连接到显示面板的感测线的多个感测通道来积分像素的当前信息，并输出第一感测值， 参考感测单元，被配置为集成先前设置的参考电流信息并输出参考感测值，被配置为计算第一感测值和参考感测值的计算块，从第一感测值去除公共噪声分量，并输出第二 以及被配置为将所述第二感测值转换为数字感测值的模拟 - 数字转换器。

公开(公告)号：US20190035331A1

公开(公告)日：2019-01-31

申请号：US15858917

申请日：2017-12-29

Applicant: LG Display Co., Ltd.

Inventor： Osung DO ,  Kyoungdon WOO ,  Hyuckjun KIM ,  Jaeyoon BAE

IPC: G09G3/3233 ,  G09G3/34

CPC classification number: G09G3/3233 ,  G09G3/3413 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0693

Abstract: The present disclosure relates to an electroluminescent display device and a driving method of the same. The electroluminescent display device comprises a display panel, including a plurality of data lines, a plurality of sensing lines, a plurality of gate lines, and pixels which are arranged in matrix at each intersection between those lines to form a plurality of display lines; a sensing circuit, for sensing a pixel current in the pixels, integrating the pixel current to obtain a sensing voltage, and generating a sensing data based on the sensing voltage during a sensing operation period; and a compensation unit for calculating a compensation value for electrical characteristics of the pixels based on the sensing data.

公开(公告)号：US20180122364A1

公开(公告)日：2018-05-03

申请号：US15786050

申请日：2017-10-17

Applicant: LG Display Co., Ltd.

Inventor： Myunggi LIM ,  Kyoungdon WOO ,  Seokhyun HONG ,  Hyuckjun KIM

IPC: G10L15/01 ,  G10L15/04 ,  G10L15/08

CPC classification number: G09G3/3258 ,  G09G3/2096 ,  G09G3/3225 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2330/06 ,  G09G2330/12 ,  G09G2370/047

Abstract: A display device comprises a display panel that displays an image and has a data line and a sensing line, a data driver that drives the display panel, and a power supply part that delivers a driving reference voltage through a wiring line connected to the data driver. The data driver supplies a data signal to the data line, supplies the driving reference voltage through the sensing line, senses the sensing line based on an internally generated sensing reference voltage, and integrates a sensing result.

公开(公告)号：US20180059420A1

公开(公告)日：2018-03-01

申请号：US15679777

申请日：2017-08-17

Applicant: LG Display Co., Ltd.

Inventor： Kyoungdon WOO ,  Jaeyoon BAE

IPC: G02B27/01 ,  G02B27/00

CPC classification number: G02B27/0172 ,  G02B27/0093 ,  G02B27/017 ,  G02B2027/0163 ,  G02B2027/0187 ,  G09G3/003 ,  G09G2354/00

Abstract: A personal immersive display device and a driving method thereof are disclosed. The display device comprises a first display panel to which first content data is provided; a second display panel to which second content data is provided; a camera that receives data associated with positions of a user's left pupil and right pupil; and a data processor that processes the data associated with the position of the user's left pupil and right pupil to determine a right gaze point and a left gaze point, detects a first gaze area on the first display panel and a second gaze area on the second display panel based on the right gaze point and left gaze point, wherein the data processor reduces resolution or brightness of the first and second content data provided to areas outside the first gaze area and second gaze area

公开(公告)号：US20160078806A1

公开(公告)日：2016-03-17

申请号：US14854301

申请日：2015-09-15

Applicant: LG Display Co., Ltd.

Inventor： Myunggi LIM ,  Kyoungdon WOO

IPC: G09G3/32

CPC classification number: G09G3/3275 ,  G09G3/3233 ,  G09G2300/0828 ,  G09G2320/0233 ,  G09G2320/0271 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2330/028

Abstract: An organic light emitting diode display includes a display panel including a plurality of pixels, each pixel including an organic light emitting diode (OLED) and a driving thin film transistor (TFT) configured to control an amount of current flowing in the OLED depending on a difference between a data voltage and a reference voltage, a source driver integrated circuit (IC) configured to produce the data voltages corresponding to data of an input image and apply the data voltages to data lines connected to the pixels, an image analyzer configured to analyze the data of the input image and produce reference voltage control data, and a reference voltage regulator configured to produce the reference voltages varying depending on the input image based on the reference voltage control data and apply the reference voltages to reference lines connected to the pixels.

Abstract translation: 有机发光二极管显示器包括包括多个像素的显示面板，每个像素包括有机发光二极管（OLED）和驱动薄膜晶体管（TFT），驱动薄膜晶体管（TFT）被配置为控制依赖于OLED的OLED中流动的电流量 数据电压和参考电压之间的差异;源驱动器集成电路（IC），被配置为产生与输入图像的数据相对应的数据电压，并将数据电压施加到连接到像素的数据线;图像分析器，被配置为分析 输入图像的数据并产生参考电压控制数据，以及参考电压调节器，被配置为基于参考电压控制数据产生根据输入图像而变化的参考电压，并将参考电压施加到连接到像素的参考线。