公开(公告)号：US20150179104A1

公开(公告)日：2015-06-25

申请号：US14550706

申请日：2014-11-21

Applicant: INTELLECTUAL KEYSTONE TECHNOLOGY LLC

Inventor： Takashi MIYAZAWA

IPC: G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0465 ,  G09G2300/0814 ,  G09G2300/0861 ,  G09G2300/0876 ,  G09G2310/08 ,  G09G2320/043 ,  H05B33/0896 ,  Y02B20/36

Abstract: At a writing time, a first transistor 412 is turned on so that a data signal Xj is supplied to one end of a capacitor 420. At this time, since a second transistor 414 is turned off, driving current does not flow to an organic light emitting diode (OLED) device 430. A power supply voltage Vdd is supplied to the other end of a capacitor through a power supply line L. However, since the driving current does not flow at the writing time, the power supply voltage Vdd is not reduced by the wiring line resistance of the power supply line L. On the other hand, at an emission time, the first transistor 412 is turned off and the second transistor 414 is turned on. Therefore, the driving current is supplied to the OLED device 430.

Abstract translation: 在写入时，第一晶体管412导通，使得数据信号Xj被提供给电容器420的一端。此时，由于第二晶体管414截止，所以驱动电流不会流到有机光 发光二极管（OLED）器件430.电源电压Vdd通过电源线L提供给电容器的另一端。然而，由于驱动电流在写入时不流动，所以电源电压Vdd不是 减少了电源线L的布线电阻。另一方面，在发光时间，第一晶体管412截止，第二晶体管414导通。 因此，驱动电流被提供给OLED器件430。