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Embedded DisplayPort v1.4 to up mobile device battery life, display

Posted: 12 Sep 2012 ?? ?Print Version ?Bookmark and Share

Keywords:VESA? eDP v1.4? mobile device? LVDS?

The Video Electronics Standards Association (VESA) has announced the forthcoming release of Embedded DisplayPort (eDP) Version 1.4. According to VESA, this version of the embedded display interface includes features that will further improve system power consumption, support multitouch data over the display interface and support a wider range of platform topologies such as tablets, handhelds and notebooks.

VESA noted that these features will position eDP as the universal embedded display interface for mobile devices and will lead to increased battery life, reduce system size and weight, as well as increase overall display capabilities.

eDP v1.4 addresses system power reduction through new features, including a new partial-frame update capability for Panel Self Refresh (PSR), lower interface voltage swings, additional link rate options, transport data compression and regional backlight control. The auxiliary channel will now carry multitouch data from the display to system processor. eDP v1.4 electrical interface parameters have also been enhanced to accommodate a wider range of system form factors and transmission media.

First introduced in 2009 as an extension of the DisplayPort standard, eDP was developed to replace the aging low-voltage differential signaling (LVDS) embedded display interface standard. In 2010, VESA member companies AMD and Intel announced that they would be phasing out LVDS support in next generation chip sets by 2013 in favor of eDP because of LVDS' limited capabilities, higher voltage levels requirements and excessive interference with system wireless communication functions. Currently undergoing final review by VESA members, eDP1.4 is anticipated to be released in October 2012 and used in commercial products as early as 2014.





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