发明授权
- 专利标题: Circuit and method for driving a thin-film EL panel
- 专利标题(中): 用于驱动薄膜EL面板的电路和方法
-
申请号: US347421申请日: 1982-02-10
-
公开(公告)号: US4485379A公开(公告)日: 1984-11-27
- 发明人: Hiroshi Kinoshita , Toshihiro Ohba , Masashi Kawaguchi , Yoshiharu Kanatani , Hisashi Uede
- 申请人: Hiroshi Kinoshita , Toshihiro Ohba , Masashi Kawaguchi , Yoshiharu Kanatani , Hisashi Uede
- 申请人地址: JPX Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JPX Osaka
- 优先权: JPX56-22644 19810217; JPX56-23312 19810218
- 主分类号: G09G3/30
- IPC分类号: G09G3/30
摘要:
An EL panel including an array of scan electrodes, an array of data electrodes crossing the scan electrodes and a plurality of pixels each lying sandwiched between a respective one of the scan electrodes and a respective one of data electrodes is driven by a circuit for applying sequentially a write pulse voltage to the scan electrodes in a line scanning fashion and a circuit for applying a refresh pulse voltage of a polarity opposite to that of the write pulse voltage throughout the panel upon completion of field scanning. The system further includes a circuit for applying throughout the display panel upon completion of field scanning a write compensation pulse of the same polarity as that of the refresh pulse voltage and an amplitude insufficient to cause electroluminescence, and a refresh compensation pulse of a polarity opposite to that of the refresh pulse and an amplitude not enough to cause electroluminescence. Preferably, the values of the write compensation pulse and the refresh compensation pulse depend on factors of an equivalent circuit of the EL panel.
公开/授权文献
- US5638022A Control system for periodic disturbances 公开/授权日:1997-06-10
信息查询
IPC分类: