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VESA Releases M1 Display Interface Connector Standard

Defines a Flexible Interconnection System for Computer Graphics Displays Supporting Hosts Using VGA, DVI, DFP or P&D (August 29, 2001)
The Video Electronics Standards Association (VESA), the worldwide leader in video display standards development, today announced the release of the M1 Display Interface Connector Standard. While most other interface specifications, such as DVI, focus solely on the host (computer) side of the video interface, the M1 standard concentrates only on the display-side interface. The connector is capable of supporting both analog and digital display interface requirements, allowing a wide range of host systems to connect to a single video port on the display, which may be a CRT, flat panel or other display device. The M1 connector system enables displays to be connected to a host system with any of the following video connectors: VGA, DVI, DFP or P&D. The M1 system emphasizes performance, ease of use, and flexibility.

Key features and benefits of the VESA M1 interface are:

-- a single connector for any display device

-- enables foolproof operation for DVI-equipped computers using dual-mode displays -- better than using DVI-I on the display

-- enhances ease-of-use by keying upstream/downstream video connectors so inputs and outputs are not confused

-- lowers cable cost by providing interoperability from multiple vendors through industry standard

-- can (optionally) power external link extender via hot-plug detect pin

-- lowers weight and cost vs. the combination of DVI-I and USB type B receptacles

-- creates a complete display interface system (analog, digital, and dual-mode), allowing a family of displays with different I/Os to be based on a single circuit board

-- offers high quality display output with scaleable cost and performance and is an interoperable solution for analog and digital video interface hosts

-- provides signal compatibility with most existing PC video interfaces and may lower electromagnetic emission

According to Jory Olson, principal engineer at InFocus Corporation and M1 workgroup leader, "by addressing the display separately, the M1 workgroup was able to create an interface that solves many of the ease-of-use problems associated with other interfaces. The M1 Display Interface System is of particular interest to projection display manufacturers, because it eliminates the need for external power supplies and dongles. The M1 Display Interface System enables Plug and Play, making projector or monitor setup much easier."

M1 is available now and can be ordered from the VESA Web site at

Based in Milpitas, California, VESA is an international trade association serving more than 150 companies participating in the video display market. VESA maintains offices in Milpitas and Tokyo. Visit VESA on the worldwide web at

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Related Keywords:Video Electronics Standards Association, M1 Display Interface Connector Standard


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