Author: pakite
Eight years ago, DisplayPort come out, someone said
Displayport will replace HDMI in the future, but for now, Displayport didn't
reach the their expectation, it looks like only a little chance to replace the
HDMI. But it's why? Displayport has advantage for technological and better than
other’s, including HDMI can not reach it’s technological.
DisplayPort technical standard:
DisplayPort has developed 1.4a, and this is based on VESA
Displayport at Sept 2014, the new vision 1.4a has HBR3 transmission model,
8.1Gbps transmission band, also combined VESA DSC 1.1 display compression
standard, The combination of this two can allow the embedded display panel to
support the highest resolution of 8K. From this technical standard we can
analyze a keyword "bandwidth". the transmission of high bandwidth
content is advantage of the DisplayPort interface, DisplayPort interface is
based on the fundamental.
Technical standard of HDMI interface:
HDMI Jack has developed 2.0 Vision, but the new jack still
not commonly used. Now the popular HDMI 1.4 standard support 4K resolution
output but only for 24fps and 30fps frame rate, HDMI 2.0 could capable of
handling 18000 trillion bits / sec data, enough to make 12 color screen display
with high frame rate 60fps per second .
Compare
HDMI and DisplayPort:
From the development, we can found the DisplayPort interface
is superior to the development of HDMI interface in technically area. after all, DisplayPort interface can transmit
8K resolution content. While the HDMI 2.0 version only support 4K 60-frame
content. There is no big difference in other technical between of them, both of
of then can transmit audio and video at the same times, and there is no
difference in the physical interface, The most important difference is still
bandwidth.
But we know the current ultra-high resolution equipment is
not commonly used, only a few of 4K resolution products in the market, as the
display industry's top configuration, 8K content will began at 2018,
besides,only a little of 4K resolution resolution for now. So the
bandwidthadvantage of DisplayPort has not displayin currently. Moreover, after
2018, both have to be upgraded, the capacity of HDMI should be improved to meet the needs of user.
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