| 摘要 |
PURPOSE: An image sensor having WDR(Wide Dynamic Range), an image pixel circuit thereof, and a driving method thereof are provided to remove distortion of a signal due to variation between photodiodes generated when using two photodiodes. CONSTITUTION: A first pixel signal generating unit(110) generates a first pixel signal corresponding to a photo-charge accumulated to a photodiode. The first pixel signal generating unit reads out the generated first pixel signal through an output node. A second pixel signal generating unit(120) generates a second pixel signal corresponding to the photo-charge accumulated to the photodiode. The second pixel signal generating unit reads out the generated second pixel signal through the output node. A WDR is implemented by synthesizing the first pixel signal and the second pixel signal.
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