The integration of holographic displays into outdoor seating requires a harmonious blend of technology, ergonomics, and aesthetics. Designers must consider three core elements: surface compatibility, environmental durability, and user interaction.

First, seating surfaces should incorporate projection-friendly materials like matte-finished composites or treated glass that minimize light interference while maintaining weather resistance. Angled armrests or tabletop extensions can serve as ideal display platforms without compromising comfort.

Second, the structural design must protect sensitive components from moisture, UV exposure, and temperature fluctuations. Waterproof enclosures with passive cooling systems can house projectors and sensors beneath seating surfaces, while maintaining sleek profiles.

Most innovatively, interactive features transform passive seating into engagement hubs. Pressure-sensitive surfaces can activate context-aware holograms - historical timelines for park benches or restaurant menus for cafe seating. Edge lighting can indicate display-active zones, creating intuitive user interfaces.

The future lies in modular systems where standard seating bases support interchangeable display modules, allowing venues to upgrade functionality as holographic technology evolves. This approach combines practical durability with cutting-edge digital interaction, redefining how public spaces facilitate both relaxation and information exchange.