公开(公告)号：US20140160179A1

公开(公告)日：2014-06-12

申请号：US14103037

申请日：2013-12-11

Applicant: Samsung Display Co., Ltd.

Inventor： Ryo ISHII ,  Daisuke KAWAE ,  Masayuki KUMETA ,  Naoaki KOMIYA

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2310/0262

Abstract: A pixel circuit is provided which includes a light-emitting element; a driving transistor configured to control an amount of current supplied from a first power line to the light-emitting element according to a pixel voltage; a capacitor having one end connected to a second power line and the other end connected to a gate of the driving transistor and configured to hold the pixel voltage; a first switch transistor configured to selectively switch the pixel voltage provided through a data signal line into the capacitor; and a second switch transistor configured to selectively connect the first power line and the second power line. The first and second power lines are separated during a period where the capacitor is charged by the pixel voltage, and are shorted during a period where the driving transistor operates according to the pixel voltage.

Abstract translation: 提供一种像素电路，其包括发光元件; 驱动晶体管，被配置为根据像素电压来控制从第一电力线向发光元件供给的电流量; 电容器，其一端连接到第二电源线，另一端连接到所述驱动晶体管的栅极并被配置为保持所述像素电压; 第一开关晶体管，被配置为选择性地将通过数据信号线提供的像素电压切换到电容器中; 以及第二开关晶体管，被配置为选择性地连接所述第一电力线和所述第二电力线。 第一和第二电源线在电容器被像素电压充电的时段期间分离，并且在驱动晶体管根据像素电压工作的时段期间被短路。

公开(公告)号：US20150364085A1

公开(公告)日：2015-12-17

申请号：US14733193

申请日：2015-06-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eiji KANDA ,  Masayuki KUMETA ,  Ryo ISHII

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3241 ,  G09G2300/0465 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/043

Abstract: A display circuit includes a plurality of pixel circuits and a shared compensation transistor. Each pixel circuit includes a driving transistor to control light emission of a light emitter. The compensation transistor is to compensate the threshold voltages of the driving transistors of the pixel circuits.

Abstract translation: 显示电路包括多个像素电路和共享补偿晶体管。 每个像素电路包括用于控制光发射器的发光的驱动晶体管。 补偿晶体管用于补偿像素电路的驱动晶体管的阈值电压。

公开(公告)号：US20150356942A1

公开(公告)日：2015-12-10

申请号：US14734423

申请日：2015-06-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eiji KANDA ,  Takeshi OKUNO ,  Masayuki KUMETA ,  Daisuke KAWAE ,  Ryo ISHII

IPC: G09G3/36

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2330/021 ,  G09G2330/028

Abstract: A voltage control circuit of a display device includes a first power line, a second power line, a third power line, and a filter circuit. The second power line is connected to the first power line at a central portion of a predetermined area. The third power line is in the predetermined area. The filter circuit is between the second and third power lines, and includes at least one element having a larger resistance value per unit length than a resistance value per unit length of at least one of the second or third power lines.

Abstract translation: 显示装置的电压控制电路包括第一电力线，第二电力线，第三电力线和滤波电路。 第二电力线在预定区域的中心部分处连接到第一电力线。 第三电力线处于预定区域。 滤波器电路位于第二和第三电力线之间，并且包括至少一个元件，其每单位长度的电阻值大于第二或第三电力线中至少一个的单位长度的电阻值。

公开(公告)号：US20150054722A1

公开(公告)日：2015-02-26

申请号：US14468914

申请日：2014-08-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eiji KANDA ,  Takeshi OKUNO ,  Masayuki KUMETA ,  Daisuke KAWAE ,  Ryo ISHII ,  Naoaki KOMIYA

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2320/0673

Abstract: An optoelectronic device includes a first transistor, a second transistor, and a control circuit. The first transistor is electrically connected between a power supply and a light-emitting element, has a gate to receive a gray scale voltage, and supplies the light-emitting element with a driving current corresponding to the gray scale voltage. The second transistor has a gate electrically connected to an electrode of the light-emitting element and a source or drain electrically connected to a circuit including a voltmeter. The control circuit reads a measurement value of the voltmeter when the gate of the first transistor receives the gray scale voltage, and corrects a next gray scale voltage applied to the gate of the first transistor based on the measurement value.

Abstract translation: 光电子器件包括第一晶体管，第二晶体管和控制电路。 第一晶体管电连接在电源和发光元件之间，具有接收灰度电压的栅极，并且向发光元件提供与灰度电压对应的驱动电流。 第二晶体管具有电连接到发光元件的电极的栅极以及电连接到包括电压表的电路的源极或漏极。 当第一晶体管的栅极接收到灰度电压时，控制电路读取电压表的测量值，并且基于测量值来校正施加到第一晶体管的栅极的下一个灰度级电压。

公开(公告)号：US20140333682A1

公开(公告)日：2014-11-13

申请号：US14269709

申请日：2014-05-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Takeshi OKUNO ,  Masayuki KUMETA ,  Eiji KANDA ,  Ryo ISHII ,  Naoaki KOMIYA

IPC: G09G3/14

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/045

Abstract: A method for driving a display device includes driving a first pixel circuit based on first and second fields of a frame, and driving a second pixel circuit based on first and second fields of the frame. The first field of the first pixel circuit overlaps the second field of the second pixel circuit. The second field of the first pixel circuit overlaps the first field of the second pixel circuit. Operations performed in the first field include storing a gray scale data voltage, and operations performed in the second field include supplying an amount of current to a light emitter based on the stored gray scale data voltage. The first and second pixel circuits are in adjacent rows of the display device.

Abstract translation: 一种用于驱动显示装置的方法包括基于帧的第一和第二场驱动第一像素电路，并且基于帧的第一和第二场驱动第二像素电路。 第一像素电路的第一场与第二像素电路的第二场重叠。 第一像素电路的第二场与第二像素电路的第一场重叠。 在第一场中执行的操作包括存储灰度数据电压，并且在第二场中执行的操作包括基于存储的灰度数据电压向光发射器提供一定量的电流。 第一和第二像素电路在显示装置的相邻行中。

公开(公告)号：US20140333214A1

公开(公告)日：2014-11-13

申请号：US14269439

申请日：2014-05-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Takeshi OKUNO ,  Masayuki KUMETA ,  Eiji KANDA ,  Ryo ISHII ,  Naoaki KOMIYA

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262

Abstract: A pixel circuit including a light emitting element outputting a gray scale based on a current supplied thereto, a first transistor configured to control an amount of current supplied to the light emitting element based on a gray scale data voltage supplied to a gate electrode of the first transistor, a second transistor connected between the gate electrode of the first transistor and an initialization voltage, a third transistor connected between the gate electrode of the first transistor and a first terminal of the first transistor; a fourth transistor connected between the first terminal of the first transistor and the light emitting element, and a fifth transistor connected between a second terminal of the first transistor and a data line. The data line is selectively supplied with the gray scale data voltage and a power supply voltage for light emitting of the light emitting element to the fifth transistor.

Abstract translation: 一种像素电路，包括基于提供给其的电流输出灰度的发光元件，第一晶体管，被配置为基于提供给第一发光元件的栅电极的灰度数据电压来控制提供给发光元件的电流量 连接在第一晶体管的栅电极和初始化电压之间的第二晶体管，连接在第一晶体管的栅电极和第一晶体管的第一端之间的第三晶体管; 连接在第一晶体管的第一端子和发光元件之间的第四晶体管，以及连接在第一晶体管的第二端子与数据线之间的第五晶体管。 选择性地向数据线提供灰度数据电压和用于将发光元件发光到第五晶体管的电源电压。

公开(公告)号：US20140160185A1

公开(公告)日：2014-06-12

申请号：US14103019

申请日：2013-12-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Takeshi OKUNO ,  Masayuki KUMETA ,  Eiji KANDA ,  Ryo ISHII ,  Naoaki KOMIYA

IPC: G09G5/10

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/08

Abstract: A display device includes a pixel circuit having a driving transistor for driving a light-emitting element based on a gradation voltage held by a holding capacitor. The display device performs a first writing of gradation data using a first initialization voltage and a second writing of the gradation data using a second initialization voltage.

Abstract translation: 显示装置包括具有驱动晶体管的像素电路，该驱动晶体管基于由保持电容器保持的灰度电压来驱动发光元件。 显示装置使用第一初始化电压和使用第二初始化电压的灰度数据的第二次写入来执行灰度数据的第一次写入。

公开(公告)号：US20170004774A1

公开(公告)日：2017-01-05

申请号：US15255528

申请日：2016-09-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Masayuki KUMETA ,  Takeshi OKUNO ,  Eiji KANDA ,  Ryo ISHII ,  Naoaki KOMIYA

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3258 ,  G09G3/2007 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0262 ,  G09G2320/045

Abstract: A pixel includes five transistors and a capacitor. A first transistor controls current to be supplied to a light-emitting element. A second transistor is connected between a gate electrode of the first transistor and a first power supply. A third transistor is connected between the gate electrode of the first transistor and a second terminal of the first transistor. The capacitor is coupled between the third transistor and the second terminal of the first transistor. The fourth transistor is connected between the second terminal of the first transistor and a second power supply. The fifth transistor is connected between the second terminal of the third transistor and a signal line. The capacitor may be the only capacitor in the pixel, and the signal line may receive an initialization voltage and a gray scale data voltage.

Abstract translation: 像素包括五个晶体管和一个电容器。 第一晶体管控制提供给发光元件的电流。 第二晶体管连接在第一晶体管的栅电极和第一电源之间。 第三晶体管连接在第一晶体管的栅电极和第一晶体管的第二端之间。 电容器耦合在第三晶体管和第一晶体管的第二端子之间。 第四晶体管连接在第一晶体管的第二端和第二电源之间。 第五晶体管连接在第三晶体管的第二端和信号线之间。 电容器可以是像素中的唯一电容器，信号线可以接收初始化电压和灰度数据电压。

公开(公告)号：US20150154941A1

公开(公告)日：2015-06-04

申请号：US14095469

申请日：2013-12-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eiji KANDA ,  Masayuki KUMETA ,  Ryo ISHII ,  Takeshi OKUNO ,  Naoaki KOMIYA

IPC: G09G5/18 ,  G09G3/32

CPC classification number: G09G5/18 ,  G09G3/3233 ,  G09G3/3258 ,  G09G2300/043 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2310/0251 ,  G09G2320/0233

Abstract: A driving method of an electro-optic device includes initializing a gate voltage of a driving transistor; and performing a data write operation where a threshold voltage of the driving transistor is compensated by turning on a first transistor and a second transistor connected in series between a drain and a gate of the driving transistor and a voltage is provided to a capacity element connected to the gate of the driving transistor to hold a voltage of the compensated data signal as a gate voltage. The first transistor is at a drain side of the driving transistor and the second transistor is between the first transistor and a gate side of the driving transistor. When the data write operation ends, the second transistor is first turned off and, subsequently, the first transistor is turned off. The second transistor is again turned on after the first transistor is turned off.

Abstract translation: 电光器件的驱动方法包括：初始化驱动晶体管的栅极电压; 并且通过接通驱动晶体管的漏极和栅极之间串联连接的第一晶体管和第二晶体管来补偿驱动晶体管的阈值电压的数据写入操作，并且将电压提供给连接到驱动晶体管的电容元件 驱动晶体管的栅极将补偿的数据信号的电压保持为栅极电压。 第一晶体管位于驱动晶体管的漏极侧，第二晶体管位于第一晶体管和驱动晶体管的栅极侧之间。 当数据写入操作结束时，首先关闭第二晶体管，随后关闭第一晶体管。 在第一晶体管关闭之后，第二晶体管再次导通。

公开(公告)号：US20150061537A1

公开(公告)日：2015-03-05

申请号：US14471277

申请日：2014-08-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eiji KANDA ,  Takeshi OKUNO ,  Masayuki KUMETA ,  Daisuke KAWAE ,  Ryo ISHII ,  Naoaki KOMIYA

IPC: H05B33/08

CPC classification number: G09G3/00 ,  G09G3/003 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0876 ,  Y02B20/36

Abstract: An optoelectronic device includes a driving transistor, a correction transistor, and a control circuit. The driving transistor adjusts a first current from a power supply based on a voltage stored in a first capacitor. The driving transistor supplies the adjusted first current to the light-emitting element. The correction transistor is electrically connected on a path of a second current flowing from the power supply to the first capacitor, and adjusts the second current based on a voltage stored in a second capacitor. The control circuit controls the second capacitor to store a gray scale voltage while the first current flows, and controls flow of the second current to update the voltage stored in the first capacitor while the first current is blocked.

Abstract translation: 光电子器件包括驱动晶体管，校正晶体管和控制电路。 驱动晶体管基于存储在第一电容器中的电压来调节来自电源的第一电流。 驱动晶体管将经调整的第一电流提供给发光元件。 校正晶体管在从电源流向第一电容器的第二电流的路径上电连接，并且基于存储在第二电容器中的电压来调整第二电流。 当第一电流流动时，控制电路控制第二电容器存储灰度电压，并且控制第二电流的流动，以在第一电流被阻塞时更新存储在第一电容器中的电压。