When placing physical signs or banners, the goal should be to make them as visible as possible. Therefore, the best location is empty "white space" on doors, walls, or flat surfaces.However, finding the right placement is tricky with electronic displays since they have timed screens and fixed size requirements. Still, you can make it easier by picking a location where color contrast is not directly affected. Also, ensure you don't use damaged signage materials, like incomplete billboards and avoid poor designs with fuzzy images.