| 发明名称 |
DISPLAY DEVICE |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the cost and power consumption of a display device by making an external circuit into small scale. <P>SOLUTION: A variable channel-size MOS transistor is used as a transistor 121 for driving a light emitting element and when a voltage of a signal 124 applied to a control gate is controlled for each sub-pixel, the amount of current or the current density flowing in the light emitting element 122 can be adjusted and luminance of each sub-pixel of each color can be adjusted for each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
| 申请公布号 |
JP2005157315(A) |
申请公布日期 |
2005.06.16 |
| 申请号 |
JP20040305102 |
申请日期 |
2004.10.20 |
| 申请人 |
SEMICONDUCTOR ENERGY LAB CO LTD |
发明人 |
YAMAZAKI SHUNPEI;KIMURA HAJIME;MAEKAWA SHINJI;NAKAMURA OSAMU |
| 分类号 |
H05B33/12;G09F9/30;G09G3/20;G09G3/22;G09G3/30;H01L51/50;H05B33/14 |
主分类号 |
H05B33/12 |
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