Edp 1.4 Specification Pdf -
Effective Bandwidth=21.6 Gbps×0.8=17.28 GbpsEffective Bandwidth equals 21.6 Gbps cross 0.8 equals 17.28 Gbps Resolution and Refresh Rate Matrix
The specification integrates support for VESA Display Stream Compression (DSC) v1.1. This visually lossless compression algorithm reduces the required data transmission bandwidth by up to 3:1. By compressing the video stream, system designers can:
A high-speed, uni-directional data channel consisting of 1, 2, or 4 differential pairs (lanes). It carries the compressed or uncompressed video stream and audio data. eDP 1.4 supports multiple link rates per lane, including HBR2 (5.4 Gbps per lane). edp 1.4 specification pdf
If you're looking to access the EDP 1.4 specification PDF, you can visit the VESA website ( www.vesa.org ) and search for the EDP 1.4 specification.
: Introduces deeper sleep states and faster wake-up times for the interface links. Effective Bandwidth=21
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eDP_AUX+ and eDP_AUX- for bidirectional communication. It carries the compressed or uncompressed video stream
The Embedded DisplayPort (eDP) version 1.4 specification is a critical standard developed by the Video Electronics Standards Agency (VESA). It defines the electrical and signaling requirements for internal display panels used in laptops, all-in-one PCs, tablets, and premium smartphones. By replacing older Low-Voltage Differential Signaling (LVDS) interfaces, eDP 1.4 introduces advanced power-saving mechanics, higher resolutions, and optimized pin counts. 1. Core Technical Architecture of eDP 1.4
Allows the display panel to maintain a static image using a local frame buffer built into the timing controller (TCON). When the onscreen content is idle (e.g., viewing a document or a static webpage), the GPU can enter a low-power sleep state, and the eDP Main Link can be turned off entirely.
The eDP 1.4 specification supports highly scalable link configurations to balance performance against implementation costs:
By iterating on its power-saving features, adding groundbreaking technologies like HBR3 and DSC, and culminating in the reliable and interoperable 1.4b standard, it set the stage for the future. This future has arrived with eDP 1.5, which builds directly on eDP 1.4's legacy, proving the wisdom and robustness of the original 1.4 design. As we look at the ultra-high-resolution, power-sipping, and high-refresh-rate displays all around us, we are looking at the legacy of eDP 1.4.
