Embodiments of methods, apparatuses, devices and systems associated with document conversion are disclosed. The polarizing sheet is attached onto a surface of the display panel and has a cut corner. The molten molding resin 30 is injected into the molding part 43 to cover almost the whole of the terminal connecting portion. The capacitive device is charged by a boost signal and discharged through the resistive device, so as to manipulate a potential at the input end of the CMOS inverter to control the operations of the transistors included in the CMOS inverter, thereby changing the level of the output voltage of the CMOS inverter. The translucent film partly transmits the exposed light.