VESA releases version 1.5 of the Embedded DisplayPort Standard
The Video Electronics Standards Association (VESA) announced the release of version 1.5 of the Embedded DisplayPort (eDP) standard. The new version will replace the eDP 1.4b version released in 2015. In addition to retaining all the key content in the previous specification, new features will be added, including an improved panel self-refresh protocol, and an enhancement to the VESA adaptive synchronization protocol. The combination of the two can save power and have better moving image quality.
eDP is an electrical interface that transfers video data from the system graphics hardware to the internal display panel and is used in devices such as laptops. With the development of technology, eDP has supported higher resolution displays and provides higher refresh rates. In the past ten years, the eDP standard has developed very rapidly. In addition to traditional notebook computers, including all-in-one computers, tablet computers, car display screens, and some devices that require a combination of display screens and hardware systems, this interface is used.
Panel self-refresh is a key energy-saving feature in the eDP standard. Through this technology, static screen images are stored in the video memory, and other system accessories enter a low-power standby state. After the system wakes up, all or part of the display can be updated as needed. For laptops or tablets, there will be a significant energy-saving effect.
Although the eDP standard has always supported Adaptive-Sync to achieve the effect of energy-saving and game frame rate control, a new Adaptive-Sync function has also been added to the eDP 1.5 version. In a movie or streaming media playback, the new protocol allows small adjustments to the frame rate, which prevents skipping or repeating frames. For wide frame rate, it can reduce the display flicker in the game.
