| 摘要 |
PURPOSE: A display device and a portable device are provided to reduce the power consumption of a display device, to downsize the display device and to suitably adopt a display device as a mobile device. CONSTITUTION: A display device is arranged while each of a plurality of pixels(Aji) formed on a display area has an organic EL(Electro-Luminescence) device(41) as a display device and each of the organic EL devices has a voltage variation section(10a) changing the value of a display voltage supplied to each of the organic EL devices. Moreover, the display device preferably includes voltage keeping sections for keeping the input voltage of the voltage variation sections and storage sections for storing image data.
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