To provide a tray for receiving input by a user and easily gathering input data.

In a display input tray 1, information is statically displayed by electronic paper 2, and the information is dynamically displayed by a display panel 3 such as a liquid crystal panel. Further, by a touch panel 4 provided on the display panel 3, a user can perform input corresponding to the information displayed on the display panel 3. And further, from an RF tag reader 25 and a code reader 26, the information of an article mounted on the display input tray 1 is read. Such read information and the information input through the touch panel 4 are stored in a memory in a data processing portion 27, and are taken out to the outside using non-contact communication means through a power/communication interface portion 9 as needed.