Embedded DisplayPort is a standardized internal display interface that connects a device's graphics processing unit (GPU) or system-on-chip (SoC) directly to its internal LCD or OLED display panel. It built upon the foundations of the external DisplayPort standard but introduced unique, power-saving features tailored specifically for embedded architectures. eDP effectively replaced the older, bulkier Low-Voltage Differential Signaling (LVDS) standard, which could no longer keep pace with high pixel densities and strict power budgets. Core Objectives of the eDP 1.4 Specification
Panel Self-Refresh is arguably the most impactful power-saving feature introduced in the eDP evolution and refined in version 1.4. edp 1.4 specification pdf
