A dry powder inhaler has a dispersion chamber containing beads. produced in AC and DC feed lines. A positioning member is fixed to the apparatus main body and is configured to contact the photosensitive-member unit when the photosensitive-member unit is mounted at the mount position, thereby positioning the photosensitive-member unit at the mount position relative to the apparatus main body. The live image is controlled by the user’s movement, causing at least a part of the display to move in concert with the user’s motion, thereby creating an enhanced three dimensional effect for a superimposed display. A wet etch process is performed on the copper-containing layer to form a source region and a drain region above the IGZO layer. A portion of the row electrodes are simultaneously selected a within a selection period in which the selection period is divided into a plurality of intervals.