DisplayHDR is a certification program developed by the VESA (Video Electronics Standards Association) that sets standards for high dynamic range (HDR) displays. It ensures that monitors and TVs meet specific performance criteria for brightness, color accuracy, and contrast, providing a more immersive viewing experience. The certification includes different tiers, such as DisplayHDR 400, DisplayHDR 600, and DisplayHDR 1000, which indicate the level of performance a display can achieve. Higher tiers offer better brightness levels and improved color reproduction, making them suitable for gaming, professional content creation, and watching HDR movies.