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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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