Described is a technology by which a device pre-enables application programs of a computer system to work with the device when the device is connected to the computer system. The display device is provided with a data line for supplying a signal to a drive element adapted to drive the liquid crystal layer, and is characterized in that a section, adjacent to the transmission display region, of the data line is formed on a plane different from a plane on which a section, adjacent to the reflection display region, of the data line is formed. Therefore, a user of the curtain is urged and guided to adequately mount the fixing device to hold the bead chain in place, and undesired accidents caused by a swinging bead chain can be avoided. An effluent from the third fractionation zone can be directly comprised in a para-xylene-separation zone feed to a para-xylene-separation zone. The effectiveness of the therapy using the LEC cancer therapeutic agents can be increased by reducing the activity of immunoregulatory T cells andor by adoptively transferring immune T cells.