What is DisplayPort ?
DisplayPort is the global standard for connecting high-definition Consumer Electronics and PC products. It’s the uncompressed, all-digital interface that delivers both dazzling quality and unmatched ease of use.
DisplayPort technology provides the highest possible signal to meet the needs of today’s – and tomorrow’s – HD entertainment systems. With a single cable, it transmits:
- digital video
- multi-channel surround sound
- advanced control data
More than 800 manufacturers have adopted the DisplayPort standard, including some of the world’s most trusted brands which include Sony, Panasonic, PAR-A-DIGM, Toshiba and many others.
- 300 million DisplayPort enabled devices are estimated for 2009.
- Market research from In-Stat projects over a billion DisplayPort devices in the market by 2010, when every new digital TV will feature at least one DisplayPort port
DisplayPort connectivity is already standard on a wide range of products:
- Blu-ray Disc players
- multimedia PCs
- gaming systems
- digital camcorders,
- digital cameras,
- computer monitors and more.
With DisplayPort connectivity, you get total completeness. The one-cable solution, plus the power and performance of a high-speed digital link.
The DisplayPort 1.4 Specification has been released with exciting new features and capabilities which extend its reach globally accros multiple devices and platforms.
Major enhancements to DisplayPort 1.4 Specification as follows:
- DisplayPort Ethernet Channel
- Audio Return Channel
- 3D over DisplayPort
- 4k & 2k Video Suuport
- Additional Color Spaces
- Micro DisplayPort Connector
- Automotive Connection System
With regards to DisplayPort Ethernet Channel it consolidates video, audio, and data streams into a single DisplayPort cable. It incorporates a dedicated data channel into the DisplayPort link, enabling high-speed, bi-directional networking at up to 100 megabits per second, (See Diagram below)
he benefits of incorporating DisplayPort Ethernet Connection as part of the DisplayPort Cable you can
- Consolidation of HD video, audio, and data in a single cable
- Enables high speed bi-directional communication
- Enables IP-based applications over DisplayPort
- Transfer speeds up to 100 megabits per second
Audio Return Channel in DisplayPort 1.4 enables a TV, via a single DisplayPort cable, to send audio data “upstream” to an A/V receiver or surround audio controller which eliminates the need for any separate S/PDIF audio connection.
3D over DisplayPort establishes critical infrastructure for implementing 3D video in the home and allowing 3D displays and source devices to communicate through an DisplayPort link which supporting resolutions up to 1080p in 3D.
4K x 2K is shorthand for 4,000 lines wide by 2,000 lines high, or roughly four times the resolution of a 1080p display. The term actually covers two formats, both supported in the DisplayPort 1.4 specification:
- 3840 pixels wide by 2160 pixels high
- 4096 pixels wide by 2160 pixels high
Adding more Color Spaces incorporated into the new DisplayPort 1.4 Spec. provides support for three additional color spaces known as Color Gamuts, this allows manufacturers to deliver better and more accurate color to users when they view their digital photos on an HDTV. In addition to RGB color and x.v.Color, the DisplayPort standard now offers native support for three additional color spaces:
- sYCC601 color
- Adobe RGB color
- Adobe YCC601 color
Like x.v.Color, each of these color spaces defines a palette of available colors that is larger than the traditional RGB color model, and closer to the full range of colors perceptible to the human eye.
The new Micro DisplayPort Connector In addition to the three connector types already defined in previous versions of the DisplayPort standard, the DisplayPort 1.4 specification introduces a new “Type D” connector designed for cell phones, pocket cameras, and other portable devices where space is at a premium. Roughly the size of a Micro USB connector, it packs all the power and functionality of an DisplayPort link into a tiny form factor. Featuring a full nineteen-pin array like other DisplayPort connectors, the Micro DisplayPort link can handle video signals up to 1080p, bringing state-of-the-art HD resolutions to the realm of handheld devices. This new connector is approximately 50% smaller than the size of the existing DisplayPort Mini Connector.
The Automotive Connection System is geared for car manufacturers in which they can incorporate DisplayPort connectivity into their vehicles. The new DisplayPort 1.4 specification provides a new, robust automotive connection system, specifically designed to meet the demanding requirements of the road while delivering true HD video to a seatback or dashboard display.
When will the first DisplayPort-equipped products come to the market?
Several major companies are now shipping products that include DisplayPort technology with more on the way. Some examples of displayport technology already in the marketplace is Apple who have standardized the displayport connector on all their MAC Cinema Display Monitors.
Which types of products do you expect will be the first to incorporate DisplayPort?
It is anticipated that PC manufacturers will adopt DisplayPort as a solution for connecting all types of displays–including monitors, projectors and HDTVs–with a single connector. DisplayPort will also be adopted in LCD panels.
Are customers actively asking for this kind of interface now?
Customers have been asking for smaller connectors, easier set up, thinner cables, fewer cables, higher color depths, higher refresh rates, higher resolutions, digital projectors, thinner and sleeker displays, and ubiquitous display connectivity–all the features which are currently being supported by Displayport.
What are the most significant benefits for the user: fewer connections and plugs with each product, for example, or fewer cables?
The main product benefits are that DisplayPort provides improved performance as a standard feature relative to DVI, and can be packaged into a USB-sized connector for space-constrained applications like notebooks and graphics cards. DisplayPort also enables ultra sleek, easy to use direct drive flat panel monitors and sets the stage for future display features such as single-cable multi-function monitor connectivity and daisy chained displays. DisplayPort enables a wide range of connectivity options to monitors, projectors and HDTVs via a single connector, making it an easy, universal and cross-application solution.
Wasn’t DisplayPort conceived as a computer interface originally, or has it been contemplated for CE systems since its inception?
DisplayPort was originally intended to provide a common replacement for LVDS, DVI and VGA, but while DisplayPort has a rich A/V feature set, it is expected to complement, not replace, DisplayPort.
How will VESA handle the issues of interoperability to be certain that DisplayPort- equipped products are able to work together?
VESA has developed a DisplayPort Compliance and Interoperability program to assure that products carrying the DisplayPort certified logo interoperable successfully.
Is there going to be a logo program indicating that a company’s product complies with the DisplayPort standard?
Yes. VESA is administering a DisplayPort logo program via the DisplayPort website. Products that successfully pass the compliance and interoperability tests are eligible to receive and use the DisplayPort certified logo.
Will DisplayPort work with standards like DisplayPort and VGA, or replace them?
DisplayPort is designed to replace LVDS, DVI and eventually VGA. While DisplayPort has a rich A/V feature set, it is expected to complement, not replace, DisplayPort, and the connector is compatible with DisplayPort signals. A multi-mode device that implements both DisplayPort and DisplayPort only needs a simple cable adapter to make an DisplayPort connection.
How will DisplayPort be implemented with existing or legacy TVs and other products? Is there going to be an adapter or similar system available soon?
Guidelines for DisplayPort-to-DVI and DisplayPort-to-DisplayPort adapters are provided in the VESA DisplayPort Interoperability Guideline. Other types of adapters, such as DisplayPort-to-VGA, are also anticipated.
Will content protection be implemented in the specification, and how?
The DisplayPort 1.1a specification includes protocol hooks for HDCP v1.3 DisplayPort supports content protection but does not require it, though it is widely anticipated that all consumer applications of DisplayPort will include content protection. Content protection systems will continue to have license agreements and specifications that are separate from the DisplayPort specification.
Why not simply use DisplayPort as a VGA replacement for PC monitors?
DisplayPort was designed as an HDTV interface, not a general-purpose internal and external display interface for IT equipment. Many of DisplayPort’s unique benefits, such as direct drive monitor design and single cable multi-function monitor connectivity are not available with DisplayPort. High resolution support and high performance are standard features of DisplayPort, whereas these are optional premium features of DisplayPort. Business and enterprise customers may not want to implement all of the consumer electronics features that are required in DisplayPort products DisplayPort is designed to meet the future needs of the PC industry while preserving compatibility with DisplayPort.