Many assume projectors are the only option when an ultra-large display is needed. The advancement and price-reduction of seamless LED panels have invalidated this assumption, ultimately making it a reality to have an extremely large display surface in your conference room or training facility. LED walls offer vibrant images, eliminating concerns of ambient lighting and bulb life. Most LED walls can last up to 100,000 hours which is equivalent to five projectors and twenty bulbs.
Although seamless LED walls are superior in performance, standard video walls still serve a purpose for many applications. Video walls are made up of multiple flat panel displays, each with thin bezels to provide an almost seamless extensive image. Video walls cost substantially less than seamless LED walls but introduce the undesirable bezel which may be minimal but is quite visible when viewing light images and content with vertical or horizontal lines such as Excel sheets.
Video Over IP
Large video systems with multiple video sources being routed to multiple video destinations require a video matrix switcher, this consists of a proprietary chassis frame with an assortment of video input and output slot cards. This configuration is quite limited and very expensive. Fortunately, video over IP offers an expandable solution that is made up of a central network switch, encoders for video sources (laptop, Blu-Ray player, etc.) and decoders for video destinations (monitor, projector, recorder, etc.). Should the system require more inputs or outputs at a later date, add another encoder or decoder, and if the central network switch is completely populated, add another network switch. Never before has it been so easy to expand a video matrix system.
Laser Phosphor Projectors
Laser projectors have greatly dwindled the need for standard bulb projectors since entering the market a few years ago. With the price dropping dramatically within the past year, standard bulb projectors are a thing of the past. Most manufacturers specify a maintenance-free lifespan of 20,000 hours for their laser projectors which typically equates to four (4) replacement bulbs on a standard projector. Keep in mind, a projector bulb can range from $250-$5,000 depending on the type of projector, not to mention the labor to install the replacement. The displayed image of a laser projector retains its brightness well into the end of its lifespan whereas a bulb projector will have a degrading image until the bulb is replaced.