The purpose of the present invention is to provide a display device for work machines that is capable of obtaining, when required, information required for the operation of a work machine or a work device, without being conscious of the information acquisition. A display device for a combine being a work machine capable of interruption display of any information on a display screen and wherein display of information in relation to the combine or a harvesting unit or threshing unit, etc. being work devices provided in the combine, occurs via an interruption display screen being one embodiment of interruption display, when a prescribed operation happens in relation to the combine, the harvesting unit, or the threshing unit, etc.