公开(公告)号：US10388220B2

公开(公告)日：2019-08-20

申请号：US15698420

申请日：2017-09-07

Applicant: Samsung Display Co., Ltd.

Inventor： Bo Yong Chung ,  Jun Hyun Park ,  Young Wan Seo ,  An Su Lee ,  Kang Moon Jo ,  Chong Chul Chai

IPC: G09G3/3233 ,  H01L51/52

Abstract: A pixel including an organic light emitting diode; a first transistor for controlling the amount of current flowing from a first driving power source to a second driving power source via the organic light emitting diode, corresponding to a voltage of a first node; a second transistor coupled between the first node and a second node, the second transistor being turned on when a scan signal is supplied to an ith (i is a natural number) scan line; a third transistor coupled between the second node and an anode electrode of the organic light emitting diode; a first capacitor coupled between a data line and the second node; and a fourth transistor coupled between an initialization power source and the anode electrode of the organic light emitting diode. The fourth transistor is turned on in response to a first control signal being supplied to a first control line.

公开(公告)号：US20140125713A1

公开(公告)日：2014-05-08

申请号：US14150614

申请日：2014-01-08

Applicant: IUCF-HYU (Industry-University Corporation Foundation Hanyang University) ,  SAMSUNG DISPLAY CO., LTD.

Inventor： Do Hyung Ryu ,  Bo Yong Chung ,  Hong Kwon Kim ,  Oh Kyong Kwon

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0276 ,  G09G2320/043 ,  G09G2352/00

Abstract: A data driver capable of displaying images with a substantially uniform brightness, an organic light emitting display device using the same, and a method of driving the organic light emitting display device. The data driver includes a plurality of current sink units for controlling predetermined currents to flow through data lines, a plurality of voltage generators for resetting values of gray scale voltages using compensation voltages generated when the predetermined currents flow, a plurality of digital-to-analog converters for selecting one gray scale voltage among the gray scale voltages as a data signal in response to bit values of the data supplied from the outside, and a plurality of switching units for supplying the data signal to the data lines. The predetermined currents may be set equal to pixel currents that correspond to a maximum brightness.

Abstract translation: 能够显示具有基本均匀亮度的图像的数据驱动器，使用该图像的有机发光显示装置，以及驱动有机发光显示装置的方法。 数据驱动器包括用于控制预定电流流过数据线的多个电流吸收单元，多个电压发生器，用于使用在预定电流流动时产生的补偿电压来复位灰度电压值，多个数模转换器 转换器，用于响应于从外部提供的数据的位值，在灰度级电压中选择一个灰度级电压作为数据信号;以及多个切换单元，用于将数据信号提供给数据线。 预定电流可以被设置为等于对应于最大亮度的像素电流。

公开(公告)号：US12217686B2

公开(公告)日：2025-02-04

申请号：US18473549

申请日：2023-09-25

Applicant: Samsung Display Co., Ltd.

Inventor： Chong Chul Chai ,  Dong Woo Kim ,  Kyoung Ju Shin ,  Bo Yong Chung

IPC: G09G3/3233 ,  G09G3/3258 ,  H01L27/12 ,  H01L29/786 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/36

Abstract: A pixel includes a plurality of transistors, a storage capacitor, and an organic light emitting diode. A first transistor controls the amount of current from a first driving power source to the organic light emitting diode based on a data voltage. A second transistor is connected to a data line and is turned on based on a scan signal. A third transistor coupled to the first transistor and is turned on based on the scan signal. A first stabilizing transistor is coupled to the third transistor or between the first and third transistors and is turned off when the third transistor is turned off.

公开(公告)号：US11769451B2

公开(公告)日：2023-09-26

申请号：US17318564

申请日：2021-05-12

Applicant: Samsung Display Co., Ltd.

Inventor： Chong Chui Chai ,  Dong Woo Kim ,  Kyoung Ju Shin ,  Bo Yong Chung

IPC: G09G3/3233 ,  G09G3/3258 ,  H01L27/12 ,  H01L29/786 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/36

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0216 ,  G09G2310/08 ,  G09G2320/0214 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2330/023 ,  H01L27/1225 ,  H01L29/7869 ,  H01L29/78672

Abstract: A pixel includes a plurality of transistors, a storage capacitor, and an organic light emitting diode. A first transistor controls the amount of current from a first driving power source to the organic light emitting diode based on a data voltage. A second transistor is connected to a data line and is turned on based on a scan signal. A third transistor coupled to the first transistor and is turned on based on the scan signal. A first stabilizing transistor is coupled to the third transistor or between the first and third transistors and is turned off when the third transistor is turned off.

公开(公告)号：US20220223672A1

公开(公告)日：2022-07-14

申请号：US17475321

申请日：2021-09-14

Applicant: Samsung Display Co., LTD.

Inventor： Chang-Soo LEE ,  Bo Yong Chung ,  Tak-Young Lee

IPC: H01L27/32

Abstract: A light emitting display device including a first pixel including a first driving transistor, a first input transistor, a first initialization transistor, a first storage capacitor, and a first light emitting diode (LED); and a second pixel including a second driving transistor, a second input transistor, a second initialization transistor, a second storage capacitor, and a second light emitting diode (LED. The first pixel further includes a first gate electrode connecting member connecting a first gate electrode of the first driving transistor and the first input transistor; the second pixel further includes a second gate electrode connecting member connecting a second gate electrode of the second driving transistor and the second input transistor; the first light emitting diode (LED) includes a first anode; the second light emitting diode (LED) includes a second anode; and the first gate electrode connecting member does not overlap the second anode in a plan view.

公开(公告)号：US11238811B2

公开(公告)日：2022-02-01

申请号：US16935303

申请日：2020-07-22

Applicant: Samsung Display Co., Ltd.

Inventor： Bo Yong Chung ,  Tak Young Lee ,  Sang Uk Lim

IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/3258

Abstract: A stage and a scan driver having the same. The stage outputs a scan signal and a sensing signal to a scan line and a sensing line, respectively. The stage includes a first controller configured to control a voltage of a sensing node and a driving node based on first to third control signals and a carry signal of the stage and another stage connected to the stage, a second controller configured to control a voltage of an inversion driving node based on a first carry clock signal, the voltage of the driving node, and the third control signal, and a first output buffer configured to output a second carry clock signal or a second low potential power as the carry signal in correspondence with the voltage of the driving node and the inversion driving node.

公开(公告)号：US11227552B2

公开(公告)日：2022-01-18

申请号：US16903307

申请日：2020-06-16

Applicant: Samsung Display Co., LTD.

Inventor： Jong Hee Kim ,  Tak Young Lee ,  Bo Yong Chung ,  Yang Hwa Choi

IPC: G09G3/3266 ,  G09G3/3258

Abstract: A scan driver including a plurality of scan stages. A first scan stage among the plurality of scan stages includes first-to-sixth transistors and a first capacitor. The first transistor is connected to a first Q node, a first scan clock line, and a first scan line. A second transistor is connected to a first scan carry line and the first Q node. A third transistor is connected to a first sensing carry line and a second sensing carry line. A fourth transistor is connected to a first control line and the third transistor. A fifth transistor is connected to the fourth transistor, a second control line, and a first node. A first capacitor is connected to the fifth transistor. A sixth transistor is connected to a third control line, the first node, and the first Q node.

公开(公告)号：US09679516B2

公开(公告)日：2017-06-13

申请号：US14693161

申请日：2015-04-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bo Yong Chung ,  Dong Gyu Kim ,  Hai Jung In

IPC: G09G3/30 ,  G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2330/12

Abstract: A pixel of an organic light emitting display includes first through fourth transistors and a capacitor. The first transistor operates based on a scan signal and is connected between a data line and a first node. The capacitor is connected between the first node and a second node. The second transistor operates based on a gate signal and is connected between a first power voltage and a third node. The third transistor operates based on compensation control line signal and is connected between the second node and the third node. The fourth transistor operates based on sensing control line signal and is connected between the data line and the third node. The organic light emitting element is connected between the third node and a second power voltage.

公开(公告)号：US09449559B2

公开(公告)日：2016-09-20

申请号：US14617770

申请日：2015-02-09

Applicant: Samsung Display Co., Ltd.

Inventor： Hai-Jung In ,  Bo Yong Chung

IPC: G09G3/32

CPC classification number: G09G3/3275 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2310/027 ,  G09G2310/0272 ,  G09G2310/0286 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2310/0294 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/045

Abstract: In a data driving apparatus, a DAC converts digital data output from a holding latch into an analog data voltage. An operational amplifier operates as a buffer which outputs the analog data voltage of the DAC to the signal line during a display period and operates as a comparator which compares the voltage of the signal line with the analog data voltage of the DAC during a sensing period. In addition, a sensing controller controls the holding latch to change the data stored in the holding latch according to a comparison value of the comparator.

Abstract translation: 在数据驱动装置中，DAC将从保持锁存器输出的数字数据转换为模拟数据电压。 运算放大器用作在显示周期期间将DAC的模拟数据电压输出到信号线的缓冲器，并作为在感测期间比较信号线的电压与DAC的模拟数据电压的比较器。 此外，感测控制器根据比较器的比较值控制保持锁存器改变存储在保持锁存器中的数据。

公开(公告)号：US20160203764A1

公开(公告)日：2016-07-14

申请号：US14726332

申请日：2015-05-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hai Jung In ,  Dong Gyu Kim ,  Jung Bae Kim ,  Bo Yong Chung

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045

Abstract: An organic light-emitting display includes: a display panel, scan and data drivers, an ADC, a controller, and a data switch. In a first initialization period, the data switch connects data lines to the data driver, which applies an initialization voltage thereto. In a first sensing period, the data switch connects the data lines to the ADC. The ADC receives analog sensing signals corresponding to first voltages of the data lines, and converts the analog sensing signals into digital sensing signals output to the controller. In a second initialization period, the data switch connects the data lines to the data driver, which applies the initialization voltage thereto. In a second sensing period, voltages at the data lines change to second voltages, the data switch connects the ADC to the data lines, and the ADC converts analog sensing signals corresponding to the second voltages into digital sensing signals output to the controller.

Abstract translation: 有机发光显示器包括：显示面板，扫描和数据驱动器，ADC，控制器和数据开关。 在第一初始化期间，数据开关将数据线连接到向其施加初始化电压的数据驱动器。 在第一感测周期中，数据开关将数据线连接到ADC。 ADC接收对应于数据线的第一电压的模拟感测信号，并将模拟感测信号转换成输出到控制器的数字感测信号。 在第二初始化期间，数据开关将数据线连接到将初始化电压施加到数据驱动器。 在第二感测期间，数据线上的电压变为第二电压，数据开关将ADC连接到数据线，并且ADC将对应于第二电压的模拟感测信号转换成输出到控制器的数字感测信号。