公开(公告)号：EP2507688A1

公开(公告)日：2012-10-10

申请号：EP10834986.1

申请日：2010-11-30

申请人： Global OLED Technology LLC

发明人： MIWA, Koichi ,  MAEKAWA, Yuichi

IPC分类号： G06F3/038

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/021

摘要： [Problem to be solved] To achieve low power consumption. [Solution] The driving transistor Tl supplies driving current from the power supply VDD to the organic EL elements OLED. The source end of the driving transistor Tl connected to one end of the said organic EL elements OLED, the other end of the organic EL elements OLED is connected to the power supply potential Vss, and the mutual conductance per display unit area of the said organic EL elements of the said driving transistor is equal to or higher than 1 x 10
-11 (A / V
2 / m
2 ).

公开(公告)号：EP2206105B1

公开(公告)日：2018-03-07

申请号：EP08839952.2

申请日：2008-10-08

申请人： Global OLED Technology LLC

发明人： MIWA, Koichi ,  MAEKAWA, Yuichi

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G2300/0439 ,  G09G2320/0214

摘要： A display device in which a plurality of pixels are arranged in a matrix form, corresponding to intersections of a plurality of data lines and a plurality of scan lines, wherein each pixel includes a light emitting element having a first electrode connected to a first power supply and which emits light according to a current that flows; a driving transistor having a source electrode connected to a second power supply and which supplies a drain current to a second electrode of the light emitting element; a data storage capacitor having a first electrode connected to a gate electrode of the driving transistor; and a first switch which is switched ON during a pixel selection period so that data of a data line is written to the data storage capacitor, and wherein a potential of a second electrode of the data storage capacitor is changed.

公开(公告)号：EP2499632A1

公开(公告)日：2012-09-19

申请号：EP10830537.6

申请日：2010-11-04

申请人： Global OLED Technology LLC

发明人： MAEKAWA, Yuichi ,  MIWA, Koichi

IPC分类号： G09G3/00

CPC分类号： G09G3/006 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2310/0251

摘要： Compensate for the variations of threshold voltage of a driving transistor. During the period of the reference signal voltage Vref being set to the signal line DTC, voltage between the gate and source of the driving transistor IOC is made equal to or greater than the threshold voltage of the driving transistor IOC, and the difference in voltage of the reference signal voltage Vref and the reference power supply voltage VreCr is charged to the retentive capacitance IOB. At the same time, the voltage of the source of the said driving transistor IOC is set to the reference power supply voltage VreCr to make the voltage applied to the said light emitting elements equal to or lower than its threshold voltage. Subsequently, while maintaining the voltage applied to the said light emitting elements IOE equal to or lower than its threshold voltage.