Abstract: Disclosed is a real size display system comprising a real size display system comprising a photographing unit for photographing an image of a subject, and outputting first image information that includes measurement information of the subject; a flat panel display unit for displaying image and providing information on installed dot size; and an image converter for receiving the first image information, converting the first image information based on the dot size information received from the flat panel display unit, and outputting second image information, to the flat panel display unit.

Abstract: A light-guide plate includes a body for guiding incident light, and at least an inserting portion penetrating a portion of the body, wherein at least a light source for providing the light-guide plate with the light is inserted into the inserting portion. The inserting portion can be formed at an end portion of the body. A side surface of the body can be recessed to form the inserting portion. A light-diffusing pattern can be formed at a side surface of the inserting portion, and the side surface of the inserting portion is substantially parallel with the side surface of the body.