专利名称：LIGHT-EMITTING DEVICE AND DRIVING
METHOD THEREOF
发明人：Hajime Kimura申请号：US14578708申请日：20141222
公开号：US20150108485A1公开日：20150423
专利附图：
摘要：In a light emitting device, luminance irregularities caused by fluctuation inthreshold of TFTs for supplying a current to EL elements among pixels hinder the lightemitting device from improving the image quality. A voltage equal to the threshold of a
TFT is held in capacitor means in advance. When a video signal is inputted from a sourcesignal line, the voltage held in the capacitor means is added to the signal, which is thenapplied to a gate electrode of the TFT . Even when threshold is fluctuated among pixels,each threshold is held in the capacitor means of each pixel, and therefore, influence ofthe threshold fluctuation can be removed. Since the threshold is stored in the capacitormeans alone and the voltage between two electrodes is not changed while a video signalis written, fluctuation in capacitance value has no influence.
申请人：SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
地址：Atsugi-shi JP
国籍：JP
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容