公开(公告)号：US20150187252A1

公开(公告)日：2015-07-02

申请号：US14579070

申请日：2014-12-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ryo ISHII ,  Daisuke KAWAE

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/2022 ,  G09G2310/0216

Abstract: A display apparatus includes a scan line driving circuit and a data line driving circuit. The scan line driving circuit supplies a scan signal to exclusively select scan lines in each of a plurality of horizontal periods. The data line driving circuit provides the data lines with data signals for turning on or off associated pixel circuits. An image on a display screen for displaying a plurality of gray scale values is displayed by switching the pixel circuits to an on state or an off state in each of a plurality of sub-frames in one frame. A pulse width of the sub-frame is set by one or more of the horizontal periods. The number of horizontal periods of a pulse width of each of the sub-frames is set such that a remainder is 1 horizontal period when a number of horizontal periods is divided by a number of the sub-frames.

Abstract translation: 显示装置包括扫描线驱动电路和数据线驱动电路。 扫描线驱动电路提供扫描信号以在多个水平周期中的每一个中专门选择扫描线。 数据线驱动电路为数据线提供用于打开或关闭相关像素电路的数据信号。 通过在一帧中的多个子帧的每一个中将像素电路切换到接通状态或断开状态来显示用于显示多个灰度值的显示屏幕上的图像。 子帧的脉冲宽度由一个或多个水平周期设定。 每个子帧的脉冲宽度的水平周期的数量被设置为当多个水平周期被子帧的数量除以时，余数为1个水平周期。

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。

公开(公告)号：US20140049182A1

公开(公告)日：2014-02-20

申请号：US13966971

申请日：2013-08-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Daisuke KAWAE ,  Ryo ISHII ,  Naoaki KOMIYA

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861

Abstract: A display device includes a pixel circuit that supplies current to a light emitting diode (LED) and a driver circuit. The pixel circuit includes a constant current circuit including a first transistor and a capacitor connected to a gate terminal of the first transistor, and a switch circuit including a second transistor. The driver circuit controls the pixel circuit such that the LED emits light by connecting the anode of the LED diode and the first power line under a non-light emission state of the LED, connecting the gate terminal of the first transistor and the anode after the anode is disconnected from the first power line, setting the gate terminal of the first transistor to a voltage corresponding to an amount of a supply current from the first power line, and after setting the gate terminal, switching a state of the LED into a light emission state.

Abstract translation: 显示装置包括将电流提供给发光二极管（LED）和驱动电路的像素电路。 像素电路包括恒流电路，包括第一晶体管和连接到第一晶体管的栅极端子的电容器，以及包括第二晶体管的开关电路。 驱动器电路控制像素电路，使得LED通过在LED的非发光状态下连接LED二极管的阳极和第一电力线来发光，在第一晶体管的栅极端子和阳极之后连接 阳极与第一电力线断开，将第一晶体管的栅极端子设定为与来自第一电力线的电源电流对应的电压，并且在设置栅极端子之后，将LED的状态切换为光 排放状态。