The present invention has been made to provide a control apparatus, a storage apparatus, and a head control method capable of preventing a use of a correction value that has improperly been read out. The antireflection property, scratch resistance and durability are excellent, the angle of field is wide, and uniform display of images with great contrast can be achieved at any angle of observation. The assembly is encapsulated using, for example, a MAP over-molding process, and then placed through a separation process to provide individual chip scale packages having flip-chip on lead frame interconnects. Thus, the flap can be moved to protrude to an optimal position and through an optimal angle according to the chord lengths of the main wing.