|[April 22, 2014]
VESA® and MIPI® Alliance Announce the Adoption of VESA's New Display Stream Compression Standard
NEWARK, Calif. --(Business Wire)--
Electronics Standards Association (VESA®), working
in liaison with the MIPI®
Alliance, announce the finalization and availability of the Display
Stream Compression (DSC) Standard, version 1.0.
VESA developed the DSC standard as an industry-wide compression standard
for video interfaces, offering visually lossless performance and low
latency. DSC has been adopted into VESA's embedded DisplayPort (eDP™)
v1.4 and into MIPI Display Serial Interface (DSI) Specification v1.2,
which are used for embedded display interfaces within mobile systems,
including smartphones, tablets and laptops. It is anticipated that the
DSC standard will also be used for external display interfaces to
computer monitors and televisions.
Increasing display resolution and higher refresh rates present
challenges for small-display mobile devices and laptops, as well as
large external displays. As display resolutions increase, the interface
payload capacity must increase either with more power-consuming
bandwidth, video data compression, or both. Displays going beyond 4K
resolutions will push the video data rate beyond the current limits of
the interface standards. For example, standard 1080p displays require a
video data rate of 3.5 gigabits/sec; 4K displays at 60Hz require 14
gigabits/sec; and future 8K displays will require over 50 gigabits/sec.
VESA's DSC standard version 1.0 enables up to 66 percent data rate
reduction, extending battery life in mobile systems and laptops, while
simplifying the electrical interface requirements for future 4K and 8K
"VESA recognized the need for display interface compression in mobile
devices to extend battery life without compromising visual quality,"
said Dale Stolitzka, VESA Display Stream Compression Task Group Chairman
and member of Samsung (News - Alert) Display America Laboratory. "In addition, on-going
development of DisplayPort standards, which includes 8K resolution
support, foresaw the need for compression because of inherent limits in
the existing display interface cables. VESA realized that compression
was becoming a common need in the industry, and that a standard
compression coding system could meet these common display interface
"We are pleased to have contributed to the development of the DSC
standard through our liaison agreement with VESA," said Joel
Huloux, Chairman of the Board, MIPI Alliance. "We came to the same
conclusion, regarding the need for a video interface compression
standard, and realized that both organizations and the industry would
benefit through this collaborative effort. DSC enables a single codec
for system chips that have multiple interfaces."
The VESA DSC Task Group, in collaboration with the MIPI Alliance Display
Working Group, co-defined requirements for a high quality compression
specification that meets the needs of today's varied display usage,
which includes a wide range of image types from still graphics and text
overlaps, to photography and video. The new coding system also addresses
usage on a wide variety of display types, sizes and viewing conditions.
Unlike more complex compression algorithms, such as MPEG, the DSC
standard uses a less complex algorithm that provides a lower compression
rate, and consumes fewer system resources including power. DSC provides
low latency, which is important for interactive systems. Through
extensive subjective testing of the standard, DSC is shown to deliver
visibly lossless performance for graphics, text, images and video. The
DSC encoding algorithm is based on delta pulse code modulation (DPCM),
an Indexed Color History (ICH), an entropy encoder and a rate buffer
that guarantees video data throughput for any possible display content.
The DSC standard is available for free to VESA members and for $350 for
non-members. For additional technical information on DSC, please see the
"VESA Display Stream Compression" white paper at http://www.vesa.org/wp-content/uploads/2014/04/VESA_DSC-ETP200.pdf.
VESA eDP v1.4 and MIPI DSI v1.2 are available to the members of the
For more information about DisplayPort, please visit http://www.displayport.org
or connect with us on YouTube.
For more information about MIPI, please visit www.mipi.org.
For more information about MIPI DSI, please visit http://www.mipi.org/specifications/display-interface.
The Video Electronics Standards Association (VESA) is an international,
non-profit standards association representing a global network of more
than 200 hardware, software, computer, display and component
manufacturers committed to developing and promoting the electronics
industry. VESA has an established 24-year track record of creating and
supporting simple, universal and cross-product solutions for today's
video and electronics industry. The association's standards include
DisplayPort™, the industry replacement for DVI, LVDS and VGA.
DisplayPort utilizes a state-of-the-art digital protocol and provides an
expandable foundation to enable astonishing digital display experiences.
For more information about VESA, visit www.vesa.org.
About MIPI Alliance
MIPI�Alliance (MIPI) develops interface specifications for mobile and
mobile-influenced industries. Founded in 2003, the organization has more
than 250 member companies worldwide, more than 15 active working groups,
and has delivered more than 45 specifications within the mobile
ecosystem in the last decade. Members of the organization include
handset manufacturers, device OEMs, software providers, semiconductor
companies, application processor developers, IP tool providers, test and
test equipment companies, as well as camera, tablet and laptop
manufacturers. For more information, please visit�www.mipi.org.
VESA®, DisplayPort™ and eDP™ are trademarks, service marks, registered
trademarks, and/or registered service marks owned by VESA. MIPI®,
M-PHY®�and UniProSM�are trademarks, service
marks, registered trademarks, and/or registered service marks owned by
MIPI Alliance. All other trademarks, service marks, registered
trademarks, and registered service marks are the property of their
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