PERIPHERAL IMAGE DISPLAY DEVICE AND PERIPHERAL IMAGE DISPLAY METHOD FOR CONSTRUCTION MACHINERY

A peripheral image display device for displaying a peripheral image that is an image around a construction machine and is captured by at least one imaging unit includes a guideline setting unit that sets a guideline, which includes at least two color information pieces, on the peripheral image captured by the at least one imaging unit at a position a predetermined distance apart from the construction machine; a guideline generating unit that generates the guideline on the peripheral image captured by the imaging unit based on setup information obtained by the guideline setting unit; and a display unit that displays the peripheral image having the guideline generated by the guideline generating unit on a screen.