A low price image display device which has a smaller number of mounted components and allows high-accuracy display, is provided by making proper use of both a high-accuracy, low-voltage DA converter IC and a DA converter circuit having high-voltage TFTs formed on an insulated substrate in accordance with a display signal value. The composite material additionally features a subjacent surface having an arrangement of polymeric fictionalizing projections that provide optimal resistance to slippage. The narrow-band light emitters can be used to provide highly saturated primary colors. The UE then receives the reference signal from the determined node, enters DRX mode, and uses the received reference signal to maintain synchronization while in the DRX mode. If the selected options in the reply message meet a threshold, the node straightforwardly transmits user data for network access via the NAS. There is a control mechanism for controlling the actuator.