| 摘要 |
A light-emitting device which consumes a decreased amount of electric power without continuously and repetitively processing the same digital signals by the external circuit and by the drive circuit, and a method of driving the same. A plurality of storage circuits are arranged in each pixel in the light-emitting device. The plurality of pixels are divided into blocks. A D/A converter circuit is provided for each of the blocks. The digital signals stored in the storage circuits in each pixel are successively converted into analog signals through the D/A converter, and are input to a capacitor and to a gate electrode of a current-controlling TFT in the corresponding pixel. This constitution makes it possible to lower the consumption of electric power and to increase the numerical aperture.
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