| 摘要 |
A display device which realizes constant display having multiple tones with low power consumption is provided. A pixel circuit 2 has an internal node N1 holding a pixel data voltage applied to a display element unit 21, a first switch circuit 22 transferring the pixel data voltage supplied from a data signal line SL to the internal node N1 through a series circuit of first and second transistor elements T1 and T2, a second circuit 23 having a third transistor element T3 which communicates between an intermediate node N2 connected with the first and second transistor elements T1 and T2, and a voltage supply line VSL, and a control circuit 24 formed with a series circuit of a fourth transistor element T4 and a first capacitative element C1, holding the pixel data voltage held in the internal node N1 at one end of the first capacitative element C1 through the fourth transistor element T4, and controlling conduction of the third transistor element T3 by a boost voltage applied to the other end of the first capacitative element C1, and the first and second transistor elements T1 and T2 are controlled individually.
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