PROBLEM TO BE SOLVED: To provide a display device and display method of a monitoring object person monitoring system which can properly display a plurality of pieces of monitoring information and easily perform determination on countermeasures according to the monitoring information, and provide the monitoring object person monitoring system.SOLUTION: A portable terminal unit as one example of a display device being the device which receives and displays monitoring information on a monitoring object person in a monitoring object person monitoring system for monitoring the plurality of monitoring object persons by detecting the prescribed behaviors of the plurality of monitoring object persons and notifying of the information continues display of a monitoring information display screen displaying the monitoring information on one monitoring object person when the prescribed input operation is received even in a case where the monitoring information on another monitoring object person is received during display of the monitoring information display screen displaying the monitoring information on the one monitoring object person, and, on the other hand, updates the monitoring information display screen during display in accordance with the monitoring information on the one monitoring object person that is further received in a case where the monitoring information on the one monitoring object person is further received during the display.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2018,JPO&INPIT【課題】本発明は、複数の監視情報を適切に表示でき、監視情報に応じた対処の判断がし易い被監視者監視システムの表示装置および該方法ならびに前記該システムを提供する。【解決手段】本発明の表示装置の一例としての携帯端末ユニットは、複数の被監視者の所定の行動をそれぞれ検知して通知する、前記複数の被監視者を監視する被監視者監視システムにおける、被監視者に関する監視情報を受信して表示する装置であって、或る被監視者に関する監視情報を表す監視情報表示画面の表示中に、他の被監視者に関する監視情報の受信があっても、所定の入力操作を受け付けている場合、前記或る被監視者に関する監視情報を表す前記監視情報表示画面の表示を継続し、一方、前記表示中に、前記或る被監視者に関する監視情報の受信がさらにあった場合、前記受信がさらにあった前記或る被監視者に関する監視情報に従って前記表示中の監視情報表示画面を更新する。【選択図】図8
