公开(公告)号：US20070242004A1

公开(公告)日：2007-10-18

申请号：US11733235

申请日：2007-04-10

申请人： HIROSHI OOOKA ,  Hirotsugu Sakamoto ,  Masamitsu Furuie ,  Takeshi Ookawara

发明人： HIROSHI OOOKA ,  Hirotsugu Sakamoto ,  Masamitsu Furuie ,  Takeshi Ookawara

IPC分类号： G09G3/30

CPC分类号： G09G3/3225 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2330/08 ,  G09G2330/10

摘要： An organic electroluminescence (EL) display device wherein pixel defects are reduced with a minimum increase in the number of thin film transistors used is to be provided. The organic EL display device has: a plurality of power supply lines each for supplying a current to one or another of pixel circuits disposed in an area surrounded by image signal lines and scanning lines; a plurality of split organic EL elements connected in parallel, each connected to one or another of the pixel circuits; a first thin film transistor of which the gate electrode is connected to the signal lines, the source electrode is connected in parallel to the anodes of the plurality of split organic EL elements, and the drain is connected to the power supply lines, and which controls the total amperage to be supplied during the light emitting period to the plurality of split organic EL elements with signals captured from the signal lines; and a plurality of second thin film transistors each disposed between the first thin film transistor and one or another of the split organic EL elements to control the current supplied to each of the split organic EL elements from the first thin film transistor.

摘要翻译： 提供一种有机电致发光（EL）显示装置，其中像素缺陷减少，所需的薄膜晶体管数量的增加最小。 有机EL显示装置具有：多个电源线，每个电源线用于向设置在由图像信号线和扫描线包围的区域中的一个或多个像素电路提供电流; 并联连接的多个分离式有机EL元件，各自连接到一个或另一个像素电路; 第一薄膜晶体管，其栅电极连接到信号线，源电极并联连接到多个分离有机EL元件的阳极，漏极连接到电源线，并且控制 使用从信号线捕获的信号在发光期间向多个分离的有机EL元件提供的总电流; 以及多个第二薄膜晶体管，每个第二薄膜晶体管分别设置在第一薄膜晶体管和一个或另一个分离有机EL元件之间，以控制从第一薄膜晶体管提供给每个分离的有机EL元件的电流。