| 摘要 |
A photosensor is disposed in each pixel, and the brightness is adjusted for each pixel depending on the light quantity of an organic EL element. The adjustment of brightness is realized by making the current amount of a pixel with a high brightness small in accordance with a pixel with a small light emission amount. Thus, low power consumption can be achieved, and the unevenness of brightness can be corrected. By disposing the photosensor to configure a photoreceptor circuit in each pixel, the unevenness of brightness is corrected. Further, it becomes possible to correct brightness in a brightness half-life. Hence, a longer lifetime can be achieved.
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