To provide a driving circuit of a gradation expression device which attains an improvement in image quality by devising a driving circuit and driving method of the gradation expression device, an image output device, and a method of driving the gradation expression device.
The driving circuit of the gradation expression device for driving the gradation expression device by supplying an analog voltage meeting digital image data to the gradation expression device is equipped with converters 7-1 to 7-n which convert the image data to an analog current Idata meeting the image data and output the same, and a plurality of stages of current sample-hold circuits which sequentially sample-hold the output current Idata of the respective converters 7-1 to 7-n and are series-connected.
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Ori Akira
Yasuo Iisaka