公开(公告)号：US20140009512A1

公开(公告)日：2014-01-09

申请号：US13935270

申请日：2013-07-03

Applicant: Samsung Display Co., Ltd.

Inventor： Dong-Woo Lee ,  Wook Lee

IPC: G09G5/02

CPC classification number: G09G3/3258 ,  G09G3/2003 ,  G09G3/2007 ,  G09G3/3233 ,  G09G3/3283 ,  G09G5/02 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2330/00 ,  G09G2330/028

Abstract: A display device, a driving control device of the display device, and a driving control method are disclosed. In one aspect, the display device comprises a display unit consisting of a plurality of pixels including a light emitting element emitting light according to a driving current corresponding to a data signal; a scan driver transmitting a scan signal through a plurality of scan lines; a data driver transmitting a data signal through a plurality of data lines; a power supply unit supplying a driving voltage to drive a plurality of pixels through a power source wire; and a driving controller connected to the power source wire, obtaining an actual output voltage value of the driving voltage output from the power source voltage supply unit, and compensating a deviation of the driving voltage in a process step by using the actual output voltage value.

Abstract translation: 公开了显示装置，显示装置的驱动控制装置和驱动控制方法。 一方面，显示装置包括由多个像素组成的显示单元，所述多个像素包括根据与数据信号相对应的驱动电流发光的发光元件; 扫描驱动器，其通过多条扫描线发送扫描信号; 数据驱动器，通过多条数据线发送数据信号; 提供驱动电压以通过电源线驱动多个像素的电源单元; 以及连接到电源线的驱动控制器，获得从电源电压单元输出的驱动电压的实际输出电压值，并且通过使用实际输出电压值来补偿处理步骤中的驱动电压的偏差。

公开(公告)号：US12154481B2

公开(公告)日：2024-11-26

申请号：US18229789

申请日：2023-08-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung Hoon Bang ,  Dong Ki Eun ,  Seung Ho Park ,  Seok Gyu Ban ,  Wook Lee

IPC: G09G3/3233 ,  G09G3/20

Abstract: A display device includes a pixel component including first pixels which emits light having a first color, and second pixels which emits light having a second color different from the first color, a sensing component which extracts, during a sensing period, first sensing data from the first pixels, and second sensing data from the second pixels, and a temperature determiner which senses a temperature of the pixel component using the first sensing data and the second sensing data. The temperature determiner senses, when the first sensing data is supplied to the temperature determiner, the temperature of the pixel component at least one time.

公开(公告)号：US11694636B2

公开(公告)日：2023-07-04

申请号：US17817501

申请日：2022-08-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung Hwan Kim ,  Wook Lee ,  Hayong Jung

IPC: G09G3/3291 ,  H03M1/36

CPC classification number: G09G3/3291 ,  H03M1/36

Abstract: A sensing circuit includes a first input selecting circuit connected to a first sensing line and a second sensing line, a first path setting circuit that sets a path of a first sensing signal received from the first sensing line or a path of a second sensing signal received from the second sensing line, a second path setting circuit that sets a path of a sensing reference voltage, a first switch matrix connected to the first path setting circuit and the second path setting circuit, a first mode setting circuit connected to a first output terminal of the first switch matrix, a first common sensing amplifier connected to the first mode setting circuit, a second mode setting circuit connected to a second output terminal of the first switch matrix, and a second common sensing amplifier connected to the second mode setting circuit.

公开(公告)号：US11417284B2

公开(公告)日：2022-08-16

申请号：US17467502

申请日：2021-09-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung Hwan Kim ,  Wook Lee ,  Hayong Jung

IPC: G09G3/3291 ,  H03M1/36

Abstract: A sensing circuit includes a first input selecting circuit connected to a first sensing line and a second sensing line, a first path setting circuit that sets a path of a first sensing signal received from the first sensing line or a path of a second sensing signal received from the second sensing line, a second path setting circuit that sets a path of a sensing reference voltage, a first switch matrix connected to the first path setting circuit and the second path setting circuit, a first mode setting circuit connected to a first output terminal of the first switch matrix, a first common sensing amplifier connected to the first mode setting circuit, a second mode setting circuit connected to a second output terminal of the first switch matrix, and a second common sensing amplifier connected to the second mode setting circuit.

公开(公告)号：US11183116B2

公开(公告)日：2021-11-23

申请号：US16566348

申请日：2019-09-10

Applicant: Samsung Display Co., Ltd.

Inventor： Su Min Yang ,  Bo Young An ,  Wook Lee

IPC: G09G3/3233

Abstract: There are provided a display device and a method of compensating for degradation thereof. The display device includes a display panel including pixels, a sensing unit configured to measure threshold voltages of the pixels, respectively, and a timing controller configured to determine grayscale compensation values with respect to the pixels corresponding to the threshold voltages, respectively, and to compensate input image data with respect to the pixels based on the grayscale compensation values, respectively, wherein the grayscale compensation values have a linear relationship with a grayscale of the input image data by using a linear slope value determined based on the threshold voltages.

公开(公告)号：US20170249882A1

公开(公告)日：2017-08-31

申请号：US15357856

申请日：2016-11-21

Applicant: Samsung Display Co., Ltd.

Inventor： Wook Lee

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

CPC classification number: G09G3/006 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2330/10

Abstract: A display device includes a display panel including a pixel electrically connected to a feedback line, a sensor electrically connected to the feedback line, the sensor being configured to measure an impedance of the pixel in response to a first control signal, and to measure a driving current flowing through the pixel in response to a second control signal, and a timing controller configured to selectively generate the first control signal and the second control signal based on an aging time of the display panel.

公开(公告)号：US20170076660A1

公开(公告)日：2017-03-16

申请号：US15194281

申请日：2016-06-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wook Lee

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G3/2003 ,  G09G2320/0276 ,  G09G2320/029 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2330/021

Abstract: A display device includes: a display panel including a plurality of pixels; a power voltage generator to generate a high power voltage that is provided to the pixels through a high power line; a degradation compensator to calculate a degradation degree of the pixels by measuring a power current flowing through the high power voltage line, and to calculate a compensation amount of a degradation of the pixels based on the degradation degree of the pixels and image data provided to the pixels; a scan driver to provide scan signals to the pixels; a data driver to provide data signals to the pixels; and a timing controller to generate control signals to control the power voltage generator, the degradation compensator, the scan driver, and the data driver.

Abstract translation: 显示装置包括：显示面板，包括多个像素; 电源电压发生器，用于产生通过高电力线提供给像素的高功率电压; 降级补偿器，用于通过测量流过高功率电压线的功率电流来计算像素的劣化程度，并且基于像素的劣化程度和提供给该像素的图像数据来计算像素的劣化的补偿量 像素; 扫描驱动器，用于向像素提供扫描信号; 数据驱动器，用于向像素提供数据信号; 以及定时控制器，用于产生控制信号以控制电源电压发生器，劣化补偿器，扫描驱动器和数据驱动器。

公开(公告)号：US09491830B2

公开(公告)日：2016-11-08

申请号：US14036401

申请日：2013-09-25

Applicant: Samsung Display Co., Ltd.

Inventor： Wook Lee

IPC: H05B33/08 ,  G09G3/32

CPC classification number: H05B33/0896 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0216 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/045

Abstract: A compensation unit includes a current source unit, a current sink unit, a sensing resistor, a comparator, and a memory. The current source unit is configured to supply a first reference current to a first node. The current sink unit is configured to sink a second reference current from the first node. The sensing resistor is coupled between the first node and a second node. The comparator is configured to: compare a voltage at the first node with a voltage at the second node, and output a comparison result signal based on the comparison. The memory unit is configured to: store compensation data related to operational disparity of at least one organic light emitting diode and/or of at least one driving transistor, output the compensation data, and modify the compensation data based on the comparison result signal.

Abstract translation: 补偿单元包括电流源单元，电流宿单元，感测电阻器，比较器和存储器。 当前源单元被配置为向第一节点提供第一参考电流。 当前宿单元被配置为从第一节点吸收第二参考电流。 感测电阻器耦合在第一节点和第二节点之间。 比较器被配置为：将第一节点处的电压与第二节点处的电压进行比较，并且基于比较输出比较结果信号。 存储单元被配置为：存储与至少一个有机发光二极管和/或至少一个驱动晶体管的操作差异相关的补偿数据，输出补偿数据，并且基于比较结果信号修改补偿数据。

公开(公告)号：US09368060B2

公开(公告)日：2016-06-14

申请号：US14040925

申请日：2013-09-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se-Byung Chae ,  Wook Lee ,  Jeong-Hwan Shin

IPC: G09G3/36 ,  G09G3/32

CPC classification number: G09G3/3225 ,  G09G3/3696 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2330/02 ,  G09G2360/16

Abstract: A power system for an organic light emitting diode (OLED) display includes a power supplier and a power source controller. The power supplier respectively supplies a first power source voltage and a second power source voltage to first and second power source voltage application lines. The power source controller calculates a reference power source voltage corresponding to a maximum average grayscale using a distribution for each grayscale of first to third image data, models each voltage drop of the first and second power source voltages for first to third subpixels, and reflects the voltage drop to the reference power source voltage to change the second power source voltage.

Abstract translation: 有机发光二极管（OLED）显示器的电力系统包括电源和电源控制器。 电源分别向第一和第二电源电压施加线提供第一电源电压和第二电源电压。 电源控制器使用对于第一至第三图像数据的每个灰度级的分布来计算对应于最大平均灰度的参考电源电压，对第一至第三子像素的第一和第二电源电压的每个电压降建模，并且反映 电压降到参考电源电压以改变第二电源电压。

公开(公告)号：US20160133175A1

公开(公告)日：2016-05-12

申请号：US14800494

申请日：2015-07-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wook Lee

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/3208 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/045

Abstract: An organic light-emitting display device includes: a display panel; a deterioration threshold value calculator for calculating a deterioration threshold value from values of accumulated image data respectively input to the plurality of pixels; a current sensor for detecting a current amount flowing through pixels in one of first to nth display areas of the display panel in a power-off section of the display panel; and a deterioration amount calculator for defining a deterioration area including a group of pixels from among the pixels each having a value of image data that is equal to or greater than the deterioration threshold value among pixels in the first to nth display areas, and calculating a deterioration amount of the pixels in the deterioration area, wherein the current sensor is configured to detect a current amount flowing through pixels in one of the first to nth display areas in each power-off section.

Abstract translation: 一种有机发光显示装置，包括：显示面板; 劣化阈值计算器，用于根据分别输入到所述多个像素的累积图像数据的值来计算劣化阈值; 电流传感器，用于检测在显示面板的断电部分中的显示面板的第一至第n显示区域中的一个中的像素流过的电流量; 以及劣化量计算器，用于从第一至第n显示区域中的像素之中定义包括具有等于或大于劣化阈值的图像数据的值的像素中的一组像素的劣化区域，并计算出 劣化区域中的像素的劣化量，其中电流传感器被配置为检测流过每个断电部分的第一至第n显示区域中的一个中的像素的电流量。