公开(公告)号：US09741276B2

公开(公告)日：2017-08-22

申请号：US14746988

申请日：2015-06-23

申请人： Rohm Co., Ltd.

发明人： Daisuke Nishinohara ,  Akimasa Maruo

IPC分类号： G09G3/3241 ,  G09G3/00

CPC分类号： G09G3/006 ,  G09G3/3241 ,  G09G2320/0673 ,  G09G2330/023 ,  G09G2330/12

摘要： An electro-optical device includes: a display unit having a plurality of pixel circuits each including a driving transistor and a light emitting element that emits light depending on a current output from the driving transistor when a voltage is applied to a gate terminal of the driving transistor; and a test unit having a test unit connection switch connected to the gate terminal of the driving transistor of each of the pixel circuits, and a test voltage supply circuit connected to the gate terminal of each of the driving transistors through the test unit connection switch and configured to supply a test voltage to the gate terminal of each of the driving transistors when the test unit connection switch is turned on.

公开(公告)号：US20150379910A1

公开(公告)日：2015-12-31

申请号：US14746988

申请日：2015-06-23

申请人： Rohm Co., Ltd.

发明人： Daisuke Nishinohara ,  Akimasa Maruo

IPC分类号： G09G3/00 ,  G09G3/32

CPC分类号： G09G3/006 ,  G09G3/3241 ,  G09G2320/0673 ,  G09G2330/023 ,  G09G2330/12

摘要： An electro-optical device includes: a display unit having a plurality of pixel circuits each including a driving transistor and a light emitting element that emits light depending on a current output from the driving transistor when a voltage is applied to a gate terminal of the driving transistor; and a test unit having a test unit connection switch connected to the gate terminal of the driving transistor of each of the pixel circuits, and a test voltage supply circuit connected to the gate terminal of each of the driving transistors through the test unit connection switch and configured to supply a test voltage to the gate terminal of each of the driving transistors when the test unit connection switch is turned on.

摘要翻译： 电光装置包括：显示单元，具有多个像素电路，每个像素电路包括驱动晶体管和发光元件，发光元件根据驱动晶体管的电流输出发光，当电压施加到驱动的栅极端子时 晶体管 以及测试单元，其具有连接到每个像素电路的驱动晶体管的栅极端子的测试单元连接开关，以及通过测试单元连接开关连接到每个驱动晶体管的栅极端子的测试电压供应电路， 被配置为当测试单元连接开关导通时向每个驱动晶体管的栅极端提供测试电压。

公开(公告)号：US08987993B2

公开(公告)日：2015-03-24

申请号：US14188864

申请日：2014-02-25

申请人： Rohm Co., Ltd.

发明人： Kohei Shoji ,  Akimasa Maruo

IPC分类号： H05B33/08

CPC分类号： H05B33/0896 ,  G09G3/3291 ,  G09G2300/0413 ,  G09G2300/0847 ,  G09G2320/041

摘要： An organic EL device comprising: an organic EL element; a first transistor that controls a drive current of the organic EL element in accordance with a brightness adjustment voltage; and a temperature correction circuit that corrects the brightness adjustment voltage in accordance with a temperature; wherein the temperature correction circuit includes: a second transistor that has a same temperature characteristic as the first transistor; a resistor element that is connected to the second transistor; and an operational amplifier that controls the second transistor such that a predetermined reference voltage and a voltage across the resistor element become equal to each other; wherein the temperature correction circuit corrects the brightness adjustment voltage in accordance with an output from the operational amplifier.

摘要翻译： 一种有机EL器件，包括：有机EL元件; 第一晶体管，其根据亮度调节电压控制有机EL元件的驱动电流; 以及温度校正电路，其根据温度校正亮度调节电压; 其中所述温度校正电路包括：具有与所述第一晶体管相同的温度特性的第二晶体管; 连接到所述第二晶体管的电阻元件; 以及运算放大器，其控制所述第二晶体管，使得所述电阻元件两端的预定参考电压和电压彼此相等; 其中温度校正电路根据来自运算放大器的输出校正亮度调节电压。