Even with the arrival of DisplayPort 2.1, many manufacturers still prioritize eDP 1.4 for DisplayHDR functionality and 4K support, as it offers the best balance of cost, performance, and power efficiency for most current consumer electronics. DisplayPort-DevCon-Presentation-eDP-Dec-2010-v3.pdf - VESA
Common pitfalls (what to watch for)
The full PDF specification (typically restricted to VESA members) generally follows this structure: edp 1.4 specification pdf
The primary goal of eDP 1.4 was to evolve the standard for the demands of modern ultra-thin laptops and tablets, focusing on power efficiency and integration. Even with the arrival of DisplayPort 2