公开(公告)号：US20150097871A1

公开(公告)日：2015-04-09

申请号：US14503595

申请日：2014-10-01

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2003 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3275 ,  G09G2310/027 ,  G09G2320/0223

Abstract: A display device includes an acquiring circuit, a calculator, and a delay controller. The acquiring circuit acquires a gray scale voltage of a gray scale value of a pixel. The calculator calculates a first delay correction value based on a voltage currently retained on a data signal line to which the gray scale voltage is output and a gray scale voltage to be subsequently output to the data signal line. The delay controller determines a timing when the gray scale voltage is to be output to the data signal line based on the first delay correction value.

Abstract translation: 显示装置包括获取电路，计算器和延迟控制器。 获取电路获取像素的灰度值的灰度级电压。 计算器基于当前保持在输出灰度级电压的数据信号线上的电压和随后输出到数据信号线的灰度电压来计算第一延迟校正值。 延迟控制器基于第一延迟校正值来确定将灰度电压输出到数据信号线的定时。

公开(公告)号：US20150035871A1

公开(公告)日：2015-02-05

申请号：US14450775

申请日：2014-08-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Daisuke KAWAE ,  Ryo ISHII ,  Masayuki KUMETA

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0814 ,  G09G2320/0223

Abstract: A display device includes a plurality of pixels, a gate control line electrically connected to the pixels, an auxiliary power line isolated from the gate control line, and a number of auxiliary switches between the gate control line and the auxiliary power line. The at least one auxiliary switch is controlled by an auxiliary control line isolated from the auxiliary power line and the gate control line. The at least one auxiliary switch electrically connects the gate control line and the auxiliary power line.

Abstract translation: 显示装置包括多个像素，与像素电连接的栅极控制线，与栅极控制线隔离的辅助电力线以及栅极控制线和辅助电力线之间的多个辅助开关。 至少一个辅助开关由与辅助电力线和门控制线隔离的辅助控制线控制。 所述至少一个辅助开关电连接所述栅极控制线和所述辅助电力线。

公开(公告)号：US20150002557A1

公开(公告)日：2015-01-01

申请号：US14319052

申请日：2014-06-30

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/045

Abstract: A pixel circuit includes a first path coupled to a gate of a driving transistor and a second path passing through a source and drain of the driving transistor. An initialization voltage of the driving transistor is set based on a gray scale data voltage carried along the first path. A voltage is stored in a capacitor coupled to the gate of the driving transistor based on the gray scale data voltage carried along the second path. The voltage stored in the capacitor is based on the gray scale data voltage, and may be compensated for variation in a threshold voltage of the driving transistor.

Abstract translation: 像素电路包括耦合到驱动晶体管的栅极的第一路径和穿过驱动晶体管的源极和漏极的第二路径。 基于沿着第一路径承载的灰度数据电压来设定驱动晶体管的初始化电压。 基于沿着第二路径承载的灰度数据电压，将电压存储在耦合到驱动晶体管的栅极的电容器中。 存储在电容器中的电压基于灰度数据电压，并且可以补偿驱动晶体管的阈值电压的变化。

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：US20140152709A1

公开(公告)日：2014-06-05

申请号：US14094449

申请日：2013-12-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Daisuke KAWAE ,  Ryo ISHII

IPC: G09G3/32

CPC classification number: G09G3/3225 ,  G09G3/2022 ,  G09G3/325 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0871 ,  G09G2300/0876 ,  G09G2320/0238 ,  G09G2320/045

Abstract: A display device includes a light emitting diode that emits a light in response to a current supplied thereto, a constant current circuit that includes a first transistor to control an amount of the current supplied to the light emitting diode, and a pixel circuit that includes a switching circuit including a second transistor to switch the supply of the current to the light emitting diode and a capacitor including a first terminal connected to a gate terminal of the second transistor and a second terminal connected to a signal line that changes a voltage of the other terminal. The first transistor and the second transistor are connected between a first power supply line and an anode of the light emitting diode including a cathode connected to a second power supply line in series.

Abstract translation: 显示装置包括：发光二极管，其响应于供给的电流而发光;恒流电路，包括用于控制提供给发光二极管的电流量的第一晶体管;以及像素电路， 开关电路，包括第二晶体管，用于将电流的供应切换到发光二极管;以及电容器，包括连接到第二晶体管的栅极端子的第一端子和连接到改变其它电压的信号线的第二端子 终奌站。 第一晶体管和第二晶体管连接在第一电源线和发光二极管的阳极之间，包括串联连接到第二电源线的阴极。

公开(公告)号：US20150279269A1

公开(公告)日：2015-10-01

申请号：US14668186

申请日：2015-03-25

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/2022 ,  G09G2300/0852 ,  G09G2310/0262 ,  G09G2320/0295

Abstract: A display apparatus includes a scan line driver and a data line driver. The data line driver supplies data signals to turn on or off pixel circuits connected to selected scan lines. The pixel circuits are turned on or off in sub frames. For each scan line, the sub frames are assigned in the display period based on a reference point. During a preliminary period, the scan line driver selects a scan line and the data line driving circuit supplies a data signal to the pixel circuit based on the reference point. During the display period, the scan line driver selects scan line connected to the pixel circuit in synchronization with an initiation timing of each sub frame of the display period. The data line driver supplies the data signal to the pixel circuit based on the state of the sub frame corresponding to initiation timing.

Abstract translation: 显示装置包括扫描线驱动器和数据线驱动器。 数据线驱动器提供数据信号以打开或关闭连接到所选扫描线的像素电路。 像素电路在子帧中打开或关闭。 对于每条扫描线，基于参考点在显示周期中分配子帧。 在初步期间，扫描线驱动器选择扫描线，并且数据线驱动电路基于参考点向像素电路提供数据信号。 在显示期间，扫描线驱动器选择与显示周期的每个子帧的启动定时同步地连接到像素电路的扫描线。 数据线驱动器基于对应于启动定时的子帧的状态向数据信号提供数据信号。

公开(公告)号：US20150062195A1

公开(公告)日：2015-03-05

申请号：US14468514

申请日：2014-08-26

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861

Abstract: An electroluminescence display device includes a controller which generates signals for controlling at least one pixel circuit during a first period and a second period. The controller controls current to a light-emitting element of the at least one pixel circuit based on a data voltage in the first period. The controller controls a supplying period of current to the light-emitting element based on a duty control voltage in the second period. The supplying period when the pixel circuit is driven at a first gray scale value is longer than that when the pixel circuit is driven at a second gray scale. The first gray scale value is greater than the second gray scale value.

Abstract translation: 电致发光显示装置包括控制器，其在第一周期和第二周期期间产生用于控制至少一个像素电路的信号。 控制器基于第一时段中的数据电压来控制至少一个像素电路的发光元件的电流。 控制器基于第二时段中的占空比控制电压来控制向发光元件的供电周期。 像素电路以第一灰阶值驱动的供给期间比以第二灰阶驱动像素电路时的供给期间长。 第一个灰度值大于第二个灰度值。

公开(公告)号：US20150062193A1

公开(公告)日：2015-03-05

申请号：US14464093

申请日：2014-08-20

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 ,  G09G3/3291 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2330/023

Abstract: An electro-optical device includes a driving transistor, a first capacitor, a second capacitor, and a switching circuit. The driving transistor is connected between a power supply and an electrode of a light-emitting element. The first capacitor is connected between a gate and source of the driving transistor. The second capacitor stores a gray scale voltage. The switching circuit selectively connects the first capacitor and the second capacitor to the gate of the driving transistor. A control circuit applies the gray scale voltage to the second capacitor while the first capacitor is connected to the gate of the driving transistor by the switching circuit, and writes a source voltage of the driving transistor at the first capacitor while the second capacitor is connected to the gate of the driving transistor by the switching circuit.

Abstract translation: 电光装置包括驱动晶体管，第一电容器，第二电容器和开关电路。 驱动晶体管连接在电源和发光元件的电极之间。 第一电容器连接在驱动晶体管的栅极和源极之间。 第二电容器存储灰度电压。 开关电路将第一电容器和第二电容器选择性地连接到驱动晶体管的栅极。 控制电路将灰阶电压施加到第二电容器，同时第一电容器通过开关电路连接到驱动晶体管的栅极，并将驱动晶体管的源极电压写入第一电容器，而第二电容器连接到 由开关电路驱动晶体管的栅极。

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。