公开(公告)号：US11929002B2

公开(公告)日：2024-03-12

申请号：US17177700

申请日：2021-02-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongwon Moon ,  Sungyoon Jo ,  Naoaki Komiya ,  Sang-Gon Lee

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/3208

CPC classification number: G09G3/2003 ,  G09G3/006 ,  G09G3/3208 ,  G09G2300/0452 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2360/147

Abstract: A method of calculating a gamma-value for a display panel includes displaying a first color test image having a first target gray-level and then measuring a first luminance-value implemented by at least one first color-pixel included in a jth display-area, displaying a second color test image having the first target gray-level and then measuring a second luminance-value implemented by at least one second color-pixel included in the jth display-area, deriving an estimated driving current flowing in the second color-pixel at the first target gray-level based on RGB gray level-driving current curves, deriving a second target gray-level when the estimated driving current flows in the first color-pixel based on the RGB gray level-driving current curves, and calculating a target gamma-value to be applied to the first color-pixel included in the jth display-area based on the first target gray-level, the second target gray-level, the first luminance-value, and the second luminance-value.

公开(公告)号：US09437136B2

公开(公告)日：2016-09-06

申请号：US14321002

申请日：2014-07-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Masayuki Kumeta ,  Takeshi Okuno ,  Eiji Kanda ,  Ryo Ishii ,  Naoaki Komiya

IPC: G09G3/14 ,  G09G3/3233 ,  G09G3/32

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：US09384696B2

公开(公告)日：2016-07-05

申请号：US14553106

申请日：2014-11-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Takeshi Okuno ,  Kazunori Morimoto ,  Naoaki Komiya

IPC: G09G3/32

CPC classification number: G09G3/3283 ,  G09G3/3258 ,  G09G2300/0819 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/041 ,  G09G2320/045

Abstract: A display device includes a sensing driver, a memory, a first compensator, and a second compensator. The sensing driver measures a first voltage value applied to a light emitter in a pixels. The memory stores a second voltage value previously measured for the pixel. The first compensator calculates a temperature of the light emitter at a time of measuring the first voltage value, and compensates for the first voltage value based on the temperature. The second compensator compensates for input data for the pixel based on a voltage variation obtained from the temperature-compensated first voltage value and the second voltage value.

Abstract translation: 显示装置包括感测驱动器，存储器，第一补偿器和第二补偿器。 感测驱动器测量施加到像素中的发光体的第一电压值。 存储器存储先前针对像素测量的第二电压值。 第一补偿器在测量第一电压值时计算发光体的温度，并且基于温度补偿第一电压值。 第二补偿器基于从温度补偿的第一电压值和第二电压值获得的电压变化来补偿像素的输入数据。

公开(公告)号：US09196225B2

公开(公告)日：2015-11-24

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：US20210256893A1

公开(公告)日：2021-08-19

申请号：US17177700

申请日：2021-02-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongwon Moon ,  Sungyoon Jo ,  Naoaki Komiya ,  Sang-Gon Lee

IPC: G09G3/20 ,  G09G3/3208 ,  G09G3/00

Abstract: A method of calculating a gamma-value for a display panel includes displaying a first color test image having a first target gray-level and then measuring a first luminance-value implemented by at least one first color-pixel included in a jth display-area, displaying a second color test image having the first target gray-level and then measuring a second luminance-value implemented by at least one second color-pixel included in the jth display-area, deriving an estimated driving current flowing in the second color-pixel at the first target gray-level based on RGB gray level-driving current curves, deriving a second target gray-level when the estimated driving current flows in the first color-pixel based on the RGB gray level-driving current curves, and calculating a target gamma-value to be applied to the first color-pixel included in the jth display-area based on the first target gray-level, the second target gray-level, the first luminance-value, and the second luminance-value.

公开(公告)号：US10068527B2

公开(公告)日：2018-09-04

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: G09G3/14 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/20 ,  G09G3/3291

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.

公开(公告)号：US09646534B2

公开(公告)日：2017-05-09

申请号：US14708071

申请日：2015-05-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Youngwook Yoo ,  Naoaki Komiya

IPC: G09G3/32 ,  G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0223 ,  G09G2320/029 ,  G09G2320/045

Abstract: An organic light-emitting display apparatus including at least one pixel including an OLED, a first transistor connected to a connection line, a second transistor connected to a power line, and to the first transistor, a third transistor connected to a data line, a fourth transistor connected to the third transistor, and to the first transistor, a fifth connected to the fourth transistor, a sixth transistor connected to the fifth transistor, and to the fifth transistor, a seventh transistor connected to the fifth transistor, and to the OLED, and first and second capacitors connected between electrodes of the fourth and fifth transistors, respectively.

公开(公告)号：US09633625B2

公开(公告)日：2017-04-25

申请号：US14283654

申请日：2014-05-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Masayuki Kumeta ,  Takeshi Okuno ,  Eiji Kanda ,  Ryo Ishii ,  Naoaki Komiya

IPC: G09G3/32 ,  G09G5/10 ,  G09G3/3233

CPC classification number: G09G5/10 ,  G09G3/3233 ,  G09G2300/0814 ,  G09G2300/0861

Abstract: A pixel circuit includes a plurality of pixels. Each pixel includes a data storage capacitor to store a voltage for controlling a gray scale value based on an input data signal, a plurality of switch transistors connected in series between a data signal line and the data storage capacitor, and a plurality of connection transistors coupled to the pixels. The switch transistors have a gate electrode connected to a first gate control signal line. At least one connection transistor is connected between at least one node between the switch transistors of a first pixel and at least one node between the switch transistors of a second pixel adjacent to the first pixel. The at least one connection transistor includes a gate electrode connected to a second gate control signal line.

公开(公告)号：US09633598B2

公开(公告)日：2017-04-25

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: G09G3/32 ,  G09G3/3233 ,  G09G3/3291

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.

公开(公告)号：US09514674B2

公开(公告)日：2016-12-06

申请号：US14254169

申请日：2014-04-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Masayuki Kumeta ,  Takeshi Okuno ,  Eiji Kanda ,  Ryo Ishii ,  Naoaki Komiya

IPC: G09G3/32

CPC classification number: G09G3/3225 ,  G09G2300/0847 ,  G09G2310/0297 ,  G09G2320/045

Abstract: A display device includes a driving transistor in a pixel circuit. A signal line is connected to a source or drain of the driving transistor. The source or drain of the driving transistor receives a power source voltage, an initialization voltage, and a data voltage through the signal line during different periods of operation. The periods of operation include an emission and non-emission periods.

Abstract translation: 显示装置包括像素电路中的驱动晶体管。 信号线连接到驱动晶体管的源极或漏极。 驱动晶体管的源极或漏极在不同的操作周期期间通过信号线接收电源电压，初始化电压和数据电压。 运营期间包括排放和非排放期。