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Monday, September 10, 2012
VESA Improves Device Battery Life and Performance with
DisplayPort Version 1.4
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The latest version of VESA's embedded display interface
includes new features that will further reduce system power
consumption, support multi-touch data over the display
interface, and support a wider range of platform topologies
including tablets, handheld devices, and notebook PCs.
The Video Electronics Standards Association (VESA) today
announced the upcoming release of Embedded DisplayPort
(eDP) Version 1.4.
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 multi- touch 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 LVDS
(Low-Voltage Differential Signaling) 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 utilized in
commercial products as early as 2014. |
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