Image input/output device and image information reading method therefor

摘要

An image input/output device 100 includes an image information detection section 130 for detecting image information of an image information object 200 by receiving reflected light L from the image information object 200 , and a self-luminous image display section 120 for displaying an image based on the image information detected by the image information detection section 130 . The image information detection section 130 and the self-luminous image display section 120 are attached together in a back-to-back arrangement. The self-luminous image display section 120 functions as an image-information-detecting light source for irradiating the image information object 200 with light L through the image information detection section 130.