DisplayPort is an audio-video interconnect general that is designed to advance display simplicity and the adoption of protected digital outputs on computers. This allows users to effortlessly view HD content and other protected files. Because DisplayPort signaling may transmit both DVI and HDMI signals (other digital display protocols), DisplayPort is compatible with a good deal of standard interconnects and subsequently, the buyer gadgets that use the standards. For consumers, this means they may effortlessly comprise DisplayPort roots or gadgets in their homes and offices.
The DisplayPort interface standard, specified by the Video Electronics Standards Association (VESA), an establishment that promotes standardization in the display segment, is a digital audio/video interconnect for computers, monitors and home-theater systems. The establishment also determines ordinary sizes for flat panel display mounts in addition to other standardization efforts. Formally approved in 2006, DisplayPort includes DisplayPort Content Protection (DPCP). This content shelter capability uses 128-bit encryption and features full authentication and session key establishment. For consumers, this means that even commercially protected content will play back over the DisplayPort interface, ensuring a seamless user experience.
DisplayPort Version 1.1 added aid for high-bandwidth digital content shelter (HDCP) to prevent copying of digital audio and video content as it travels throughout DisplayPort connections to a display device. HDCP is also used in other types of connections, such as HDMI.
PC manufacturers devised DisplayPort to address computing worries and replace the external analog video graphics array (VGA) interfaces in PC and LCD monitors and in buyer electronics equipment. Additionally, DisplayPort offers further and added capablenesses over external digital visual interface (DVI) connectors found in devices. It also aims to replace internal, board-to-display low voltage differential signaling (LVDS) links in appliances with a unified link interface.
DisplayPort technology appears to be profiting momentum. According to a 2008 report from industry analyst firm In-Stat; DisplayPort is anticipated to reach the milestone of more than 600 million merchandise shipped by 2012. The DisplayPort Web internetsite lists more than 165 members of VESA, a veritable who’s who of the buyer electrics and PC industries. Many of these companies have declared their intention to utilize or support DisplayPort engineering into their products. Some noteworthy industry heavyweights, like Dell, for example, already have a good deal of displays shipping with DisplayPort technology.
Mini DisplayPort – Apple drives littler form element
The Mini DisplayPort interface is a littler version of the conventional DisplayPort plug and connector, and was original publicly declared by Apple in 2008. Apple productions featuring the Mini DisplayPort connector include the MacBook family of laptops, the iMac, Mac Mini, Mac Pro and the entire Apple Cinema line of displays. DisplayPort substituted the DVI and mini-DVI interfaces found on former generations of Macs. The user-friendly Mini DisplayPort connector links the Mac to an LED Display, and offers both video and audio support, reducing the number of cables related with incorporating an external display and speakers.
Unlike Mini-DVI and Micro-DVI predecessors, the Mini DisplayPort is capable of displaying the high resolutions ordinarily related with 30 inch and larger displays. Large displays are getting more common. DisplayPort integrators Dell and Apple not long back freed 30 inch product offerings. Laptops with a Mini DisplayPort may connect a computer to an external display or projector with a VGA or DVI interface by using an adapter. While the Mini DisplayPort and regular DisplayPort signals are identical, their connectors are different, and to connect Mini DisplayPort to a regular DisplayPort or vice versa requires an adapter.
In early 2009, VESA declared that it would include Mini DisplayPort in the DisplayPort 1.2 specification. The DisplayPort 1.2 specification is envisioned to be finalized by VESA by the end of this year. The DisplayPort 1.2 specification offers features including:
— 2X the speed of the DisplayPort 1.1a specification
— Multiple stream support over one connector
— Optional higher speed auxiliary channel which enables bi-directional bulk selective information transfer over one DisplayPort cable
— Additional help for DisplayPort Mini-connector
— Backward compatibility with DisplayPort version 1.1a
DisplayPort Testing
Working with an independent test lab accredited by VESA to carry out DisplayPort testing helps ascertain that Display Port productions will function properly, which is in particular necessary with buyer video applications. DisplayPort compliance & logo program testing warrants that productions will comply with DisplayPort popular guidelines.
DisplayPort test categories include:
— Physical Layer Test
— Link Layer Test
— Electrical Test
— HDCP Test
While VESA does not require certification of DisplayPort products, it is highly encouraged. Once a manufacturer’s device is certified, the manufacturer incurs the right to use the DisplayPort logo. The DisplayPort Certified Logo reassures end users that certified productions will interoperate in the right manner and provide a quality digital display experience.
Related Tests
Tests related to the DisplayPort test include:
— HDMI Compliance Test: The HDMI compliance test ensures High Definition Multimedia Interface (HDMI) productions will function properly.
— Consumer Electronics Control Test (CEC test): CEC is one of the functions specified within the HDMI specification 1.2a. This test verifies that the CEC function of a product will carry out correctly.
— HDCP Compliance Test for HDMI or DisplayPort products: This test determines whether or not HDCP implementation meets sure specific requirement.
— sRGB Compliance Program: Products that pass all sRGB tests will be granted use of the sRGB logo. This logo shows end users that the display has been tested by an independent third-party test lab.
Ben Anton, 2009
Powered by Mini DisplayPort source
Works, but..
Blocks 2 other ports on both sides of MiniDP.
Fat cable!