Patent ID: 7548251
Filing Date: 2009-06-16
Classification: B41J

Abstract:
1. An image forming device comprising a photosensitive recording medium pack and a display panel for exposing the photosensitive recording medium to light, the recording medium pack comprising: the display panel comprising: wherein the display panel is inserted in the case of the recording medium pack through the exposure opening with the first surface of the light transmissive substrate facing the photosensitive recording medium; a cover attached to the second surface of the substrate for enclosing the plurality of light emitting elements: and a driver unit mounted on the cover for driving the plurality of light emitting elements: wherein, when refractive index of the substrate is expressed by n and minimum spacing distance between the plurality of light emitting elements is expressed by S, the thickness T satisfies an inequality: wherein the display panel directly faces the photosensitive recording medium without any intervening lens.