: eDP 1.4 was a major leap forward in power optimization, helping to define the standard for energy-efficient displays.
: An evolution of the original PSR, this feature allows the GPU to power down while the display panel refreshes from a local frame buffer during static images. PSR2 adds "Selective Updates," where only the changed portion of the screen is transmitted, significantly reducing power consumption.
Because VESA is a member-based organization, the official, full-length technical PDF is typically restricted to members. However, you can find high-level summaries and related documentation here: edp 1.4 specification pdf
For those interested in delving deeper into the technical details of EDP 1.4, the specification is available in PDF format from the Video Electronics Standards Association (VESA) website. The EDP 1.4 specification PDF provides a comprehensive overview of the interface, including its architecture, protocol, and electrical characteristics.
: Scope, purpose, and compatibility with previous versions (eDP 1.3). : eDP 1
The EDP 1.4 specification PDF document outlines the requirements for a high-speed, low-power display interface that can support a wide range of display resolutions and refresh rates. The specification defines the electrical, logical, and protocol requirements for EDP interfaces, including the transmitter, receiver, and cable. The document also provides detailed information on the EDP protocol, including the link training and verification processes.
If you are looking for the official , it is typically available to VESA members through the official VESA website. Below is a comprehensive technical overview of what makes version 1.4 a cornerstone of modern laptop and tablet design. ⚡ Key Features of eDP 1.4 Because VESA is a member-based organization, the official,
The total bandwidth varies based on the chosen Link Rate and the number of active lanes (1, 2, or 4 lanes):
🔍 It defines the standard for high-resolution internal display connections (e.g., laptop screens to motherboards). Version 1.4 introduced key features like Panel Self-Refresh (PSR2), increased data rates (up to 5.4 Gbps per lane), and support for HDR metadata.
