发明名称 |
Display device and driving method thereof |
摘要 |
A display device in which not only a variation in a current value due to a threshold voltage but also a variation in a current value due to mobility are prevented from influencing luminance with respect to all the levels of grayscale to be displayed. After applying an initial potential for correction to a gate and a drain of a driving transistor, the gate and the drain of the driving transistor is kept connected in a floating state, and a voltage is held in a capacitor before a voltage between the gate and a source of the driving transistor becomes equal to a threshold voltage. When a voltage obtained by subtracting the voltage held in the capacitor from a voltage of a video signal is applied to the gate and the source of the driving transistor, a current is supplied to a light-emitting element. A value of an initial voltage for correction differs in accordance with the voltage of the video signal.
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申请公布号 |
US8338835(B2) |
申请公布日期 |
2012.12.25 |
申请号 |
US20100877567 |
申请日期 |
2010.09.08 |
申请人 |
MIYAKE HIROYUKI;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
MIYAKE HIROYUKI |
分类号 |
H01L31/14;G09G3/20;G09G3/30;H01L51/50;H05B33/08 |
主分类号 |
H01L31/14 |
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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