发明名称 |
DEVICE SUBSTRATE, LIGHT EMITTING DEVICE AND DRIVING METHOD OF LIGHT EMITTING DEVICE |
摘要 |
A light emitting device comprising a light emitting element and a first transistor and a second transistor controlling current to be supplied to the light emitting element in a pixel; the first transistor is normally-on; the second transistor is normally-off; a channel length of the first transistor is longer than a channel width thereof; a channel length of the second transistor is equal to or shorter than a channel length thereof; gate electrodes of the first transistor and the second transistor are connected to each other; the first transistor and the second transistor have the same polarity; and the light emitting element, the first transistor and the second transistor are all connected in series.
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申请公布号 |
US2012299889(A1) |
申请公布日期 |
2012.11.29 |
申请号 |
US201213570478 |
申请日期 |
2012.08.09 |
申请人 |
YAMAZAKI SHUNPEI;SAKAKURA MASAYUKI;OSAME MITSUAKI;HAMADA TAKASHI;TAKANO TAMAE;YAMAZAKI YU;ANZAI AYA;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
YAMAZAKI SHUNPEI;SAKAKURA MASAYUKI;OSAME MITSUAKI;HAMADA TAKASHI;TAKANO TAMAE;YAMAZAKI YU;ANZAI AYA |
分类号 |
G09G5/00;H01L51/50;G09F9/30;G09G3/20;G09G3/30;G09G3/32;G11C7/00;H01L21/77;H01L27/15;H01L27/32;H05B33/14 |
主分类号 |
G09G5/00 |
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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