With maximum bandwidth and the assistance of Display Stream Compression (DSC), eDP 1.4 seamlessly supports: at 60Hz or 120Hz. 5K Displays (5120 x 2880) at 60Hz with 10-bit color depth.
Key facts (what it is)
| Feature | Description & Benefit | | :--- | :--- | | | Doubles per-lane data rate from 5.4 Gbps (HBR2) to 8.1 Gbps , achieving a total raw bandwidth of 32.4 Gbps. This is the foundation for supporting 4K, 5K, and 8K displays at high refresh rates. | | Panel Self Refresh (PSR) with Partial-Frame Updates | Allows the panel to refresh from its own frame buffer when the displayed image is static. Partial-frame updates refine this, updating only the portion of the screen that changes, dramatically reducing power consumption for everyday tasks like reading or idle desktop use. | | Display Stream Compression (DSC) 1.2 | A visually lossless compression standard that reduces the data needed for high-resolution video. This enables 8K displays and High Dynamic Range (HDR) content without requiring an exponential increase in bandwidth or physical lanes. | | Segmented Panel Displays with Multi-SST Operation (MSO) | Enables a new generation of thin, lightweight, and low-cost displays by supporting complex panel architectures. MSO can power multiple independent segments of a single physical screen, like those found in some foldable or unique form-factor devices. | | Regional Backlight Control | Zoning technology that controls LED backlight brightness for specific display areas in real-time. This is a cornerstone of High Dynamic Range (HDR) , dramatically boosting contrast ratios and perceived image quality while saving power. | | Expanded Link Rate Options & Lower Voltage | Introduces multiple new intermediate data rates between 1.62 Gbps and 8.1 Gbps, allowing systems to select a "just-right" speed to minimize power draw. Lower interface voltage swings also contribute to significant power savings. | edp 1.4 specification pdf
: In a standard system, the GPU continuously transmits frame data to the display panel 60 times a second, even if the image is completely static (like reading an article or viewing a photo). With maximum bandwidth and the assistance of Display
: Reducing the physical footprint of connectors and cables inside sleek device chassis. Key Technical Features of eDP 1.4 This is the foundation for supporting 4K, 5K,
: The standard added support for newer technologies like certain OLED panels, which feature extended display persistence and can operate with a low refresh rate without needing a frame buffer, further saving power.
The eDP 1.4 specification was released by VESA as the successor to eDP 1.3. It was explicitly designed to accommodate the industry's shift toward higher display resolutions (such as 4K Ultra HD and beyond), faster refresh rates (120Hz to 240Hz), and wider color gamuts, all while drastically lowering system power consumption.