DISPLAY SCREEN ADJUSTMENT DEVICE

PROBLEM TO BE SOLVED: To make an adjustment object display be recognized visually clearly among a plurality of displays composing a multi-display.SOLUTION: A display screen adjusting device in a multi-display composed of a plurality of displays comprises: a signal analysis unit analyzing a screen adjustment request signal input from an external apparatus; a screen adjustment unit adjusting a screen of its own display based on the analysis result; a communication unit performing information communication with an adjacent display; an instruction generation unit generating an instruction request signal for making adjustment object directions display on the screen of the display adjacent to its own display when it is determined that the input screen adjustment request signal shows its own display is selected as an adjustment object, and transmitting the instruction request signal to the predetermined adjacent display; and a directions display unit performing adjustment object directions display on its own display when the communication unit receives the instruction request signal requesting directions display on its own display.