IMAGE FORMING DEVICE

摘要

An exposure unit includes a lens group having a plurality of lenses arrayed in a first direction and an element array which is arranged to face the lens group and includes a plurality of organic EL elements arrayed in parallel with the first direction on a substrate, a drive circuit including a plurality of TFT circuits for controlling luminance per unit time of the organic EL element is arranged on the substrate, and the TFT circuit controls the luminance of the organic EL element based on a signal created by an area gray scale method.

主权项

1. An image forming device comprising:
a photosensitive body; a charging unit configured to charge the photosensitive body; an exposure unit configured to expose the photosensitive body; and a developing unit configured to provide a developer to the photosensitive body, wherein the exposure unit includes a lens group having a plurality of lenses and an element array which is arranged to face the lens group and includes a plurality of pixels arrayed along the lenses, the plurality of the pixels comprise a plurality of subpixels including an organic EL element, a drive circuit includes a plurality of transistor circuits, and the transistor circuits controls a number of the organic EL elements which emit light, and a luminance of light emitted by the organic EL element in the plurality of the pixels.