发明名称 |
Light emitting device and electronic apparatus using the same |
摘要 |
A light emitting device capable of suppressing drop in luminance or luminance unevenness of a light emitting element due to deterioration of an electro luminescent material and capable of switching an image direction vertically to horizontally without a frame memory additionally provided. The light emitting device of the invention comprises in each pixel first to fourth transistors, a light emitting element, and a signal line. The first transistor and the second transistor control the connection between the signal line and a gate of the third transistor, the fourth transistor controls a current value supplied to the light emitting element, and the third transistor selects whether the current is supplied to the light emitting element or not. Further, the first transistor and the second transistor are switched separately.
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申请公布号 |
US2007177088(A1) |
申请公布日期 |
2007.08.02 |
申请号 |
US20070730617 |
申请日期 |
2007.04.03 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KOYAMA JUN;OSAME MITSUAKI;YAMAZAKI YU;ANZAI AYA |
分类号 |
G02F1/1343;H01L51/50;G09F9/30;G09G3/20;G09G3/30;G09G3/32;H01L27/32;H05B33/14 |
主分类号 |
G02F1/1343 |
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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