Abstract
In this paper, the effect of touch screen as interface at process-plant controlled with CRT operation are studied from the viewpoint of display design. At first, we designed CRT pictures for touch operation, based on the conventional investigation on relevant human factors, and simulated touch operation with these pictures. From the results, several problems, concerning complicated adjustments and too many switching and selecting operations, were observed on general CRT pictures. To improve the disadvantages, we intended to introduce a touch operation such as rubbing directly on a touch screen. A few intentions were attempted and clarified the effectiveness for touch operation by verification experiments with improved pictures.
