A 3.3V signal indicating to the GPU that the display panel is powered and active.
When the screen displays a static image (like a text document), the GPU enters a low-power state. The remote frame buffer inside the display's TCON takes over, continuously refreshing the screen without GPU intervention. edp 1.4 specification pdf
Advanced power-saving states dynamically reduce battery drain. edp 1.4 specification pdf
The eDP 1.4 specification incorporates VESA Display Stream Compression (DSC) v1.1. This visually lossless, low-latency compression algorithm reduces the required data transmission rate by up to 3:1. By leveraging DSC, system designers can drive higher resolution displays (or higher refresh rates) over fewer physical data lanes, saving both physical routing space on thin motherboards and power on the interconnect. 4. Multi-SST Operation (MSO) edp 1.4 specification pdf