The display control unit 14 has a function of a color component image data construction unit that constructs color component image data, which is component image data including display color data based on component image data read from the component image database 16 and a color palette read from the color palette database 17. The display control unit 14 also has a function to generate display image data by using input display data and color component image data and to supply them to the image display unit 11.

The component image database 16 and the color palette database 17 are stored in a storage device 18 such as a semiconductor memory. The storage device 18 is, for example, a flash memory. The component image database 16 and the color palette database 17 can be stored in storage devices differing from each other.

FIG. 2 is a diagram showing an example of a hardware (H/W) configuration of the facility equipment management apparatus 10. The facility equipment management apparatus 10 includes a memory 32 that stores a program as a software and a processor (CPU: central processing unit) 31 that is an information processing unit that executes the program stored in the memory 32. The processor 31 and the memory 32 configure a control unit 30 that controls the operation of the facility equipment management apparatus 10. By executing a program, the processor 31 can implement the display control unit 14 and the color palette construction unit 15 shown in FIG. 1.