发明名称 EL DISPLAY DEVICE AND ELECTRONIC DEVICE
摘要 An EL display device capable of producing a vivid multi-gradation color display, and an electronic device having the EL display device. An electric current supplied to an EL element is controlled by providing a resistor between a current control TFT and the EL element formed in a pixel, the resistor having a resistance higher than the on-resistance of the current control TFT. The gradation display is executed by a time-division drive system which controls the emission and non-emission of light of the EL element by time, preventing the effect caused by a dispersion in the characteristics of the current control TFT.
申请公布号 US2011260172(A1) 申请公布日期 2011.10.27
申请号 US201113172051 申请日期 2011.06.29
申请人 SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 发明人 KOYAMA JUN
分类号 G09G3/30;H01L29/786;G02F1/136;G09F9/30;G09G3/20;G09G3/32;H01L27/15;H01L27/32;H01L51/50;H05B33/12;H05B33/14 主分类号 G09G3/30
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