Video Wall FAQ'S Page

The display component of a video wall are the individual cubes. Within these cubes are the projector "engines" which are usually projection TV's similar to a Home Theater projection TV. While these engines are similar, they are far more sophisticated

The technology of the imager(s) can be cathode ray tube (CRT), Liquid Crystal Display (LCD) or Digital Light Processor (DLP). Each of these imaging technologies has advantages as well as disadvantages. The specific application and environment that a wall will be used will determine the technology required.

The geometry of the wall is determined when 2 or more cubes are assembled together. For example, two rows of two cubes create a 2X2 wall (4 cubes). A 2X3 has 6 and so on.

The limits on the number of cubes that can be stacked will depend on several factors - most important is the load bearing ability of the platform. The weight of a video wall is enormous after you get past a 2x2.

Because the weight of a wall is large, the structural and load bearing abilities of the platform it is built upon is critical. Not just from a safety viewpoint, but for picture quality six months or more after the wall is built. The distance between the cubes (called "mullions") must be kept to a minimum. You want the edges of the cubes to be as subtle as possible. If the platform's flat, level surface should change, the edges of the cubes will separate and the mullions will become larger.

In addition, the electronic alignment of the video wall is so critical, that an unlevel or sagging wall will make the big picture look uneven.

Resolutions up to 1024 X 768 resolution for stand-alone applications and up to UXGA 1600 X 1200 resolution are possible with several brands of video wall engines.

Pioneer was the last "CRT Solution" for video walls. Their highest resolution was 1024 X 768. Pioneer discontinued manufacturing CRT engines in June of 2003. While there are still some dealers selling the engines, It is anticipated that Pioneer will discontinue support (parts, etc) sometime in the future.

DLP and LCD are the most prevalent technologies at this moment. But, DiLA sometimes referred to as LCOS is beginning to inch up in the numbers. All 3 technologies are capable of higher than 800 X 600.

* Click on Images below for larger picture.

	After the physical wall has been installed, is level, and after all cables have been connected - the greatest task is next - alignment of the video wall. Each cube has to be aligned individually and then the entire wall as one big picture.
	The field engineers who can perform this function are some of the most skilled technicians. Alignment is an art as well as a science. Depending on the manufacturer and type of projector, alignments are performed by using special software on a laptop or with a special service remote control.