发明申请
- 专利标题: Active Matrix Type Display Device
- 专利标题(中): 有源矩阵型显示设备
-
申请号: US11587905申请日: 2004-04-30
-
公开(公告)号: US20080143648A1公开(公告)日: 2008-06-19
- 发明人: Atsuo Ishizuka , Hisashi Yamaguchi , Yasunobu Hashimoto
- 申请人: Atsuo Ishizuka , Hisashi Yamaguchi , Yasunobu Hashimoto
- 国际申请: PCT/JP2004/006352 WO 20040430
- 主分类号: G09G3/30
- IPC分类号: G09G3/30
摘要:
The display device of the invention comprises a plurality of scanning lines (Wscan and Escan) which are selected successively, a plurality of data lines (Data) to which the writing electric current (Idata) in accordance with brightness information is supplied according to the scanning line selection, and a plurality of pixels (PX) arranged at intersecting points between the scanning lines and the data lines. Each of the pixels comprises a light emitting element (OLED), a driving transistor (TFT4), a capacitor (C) connected to the gate (Nd) of the driving transistor for accumulating writing data, a first transistor (TFT1) which is turned on during writing period in which the scanning lines are scanned and which connects the data lines and the drain of the driving transistor, and a second transistor (TFT2) which is turned on during the writing period and which short-circuits the gate and drain of the driving transistor. With such a structure, the light emitting element can be driven with a driving electric current equivalent to the writing electric current, irrespective of variations in characteristics of the transistors,
公开/授权文献
- US07796102B2 Active matrix type display device 公开/授权日:2010-09-14
信息查询
IPC分类: