What aspect of a display can be enhanced through iterative design?

Iterative design is a process that emphasizes continuous improvement through repeated cycles of testing, feedback, and refinement. In the context of displays, enhancing usability based on real-world interactions is a critical aspect of this iterative approach. By observing how users interact with a display, designers can identify pain points, usability issues, or areas of confusion. This feedback informs adjustments to the design, ensuring that it meets users' needs more effectively.

This focus on real-world interactions allows for a deeper understanding of user behavior, preferences, and challenges, leading to a more intuitive and user-friendly display. In contrast, other options such as the initial concept of the display or graphic design elements, while important, do not encompass the full breadth of user experience refinement that iterative design aims to address. Additionally, the production speed of the display relates more to manufacturing processes rather than the usability derived from user feedback or interaction data.