A method of processing image data for display by a display panel of a display device is provided. The compounds are useful for treating diseases such as inflammatory diseases and cancer. The flaps extend outward from an exterior side of the main section. The client is operative for converting the digitized audio signals from the selected premises into audio for an operator that is monitoring the premises. In the laser irradiation, a laser beam emitted from a laser oscillator 101 passes through a slit 102 so as to block a low-intensity part of the laser beam, the traveling direction of the laser beam is bent by a mirror 103, and an image formed at the slit is projected to an irradiation surface 106 by a convex cylindrical lens 104.