A video wall is a special multi-monitor setup that consists of multiple computer monitors, video projectors, or television sets tiled together contiguously or overlapped in order to form one large screen. Typical display technologies include LCD panels, Direct View LED arrays, blended projection screens, Laser Phosphor Displays, and rear projection cubes.
Screens specifically designed for use in video walls usually have narrow bezels in order to minimize the gap between active display areas, and are built with long-term serviceability in mind. Such screens often contain the hardware necessary to stack similar screens together, along with connections to daisy chain power, video, and command signals between screens. A command signal may, for example, power all screens in the video wall on or off, or calibrate the brightness of a single screen after bulb replacement.
Reasons for using a video wall instead of a single large screen can include the ability to customize tile layouts, greater screen area per unit cost, and greater pixel density per unit cost, due to the economics of manufacturing single screens which are unusual in shape, size, or resolution.
Digital signage is a sub-segment of signage. Digital displays use technologies such as LCD, LED and Projection to display content such as digital images, video, streaming media, web pages, weather data, restaurant menu, or text. They can be found in public spaces, transportation systems, museums, stadiums, retail stores, hotels, restaurants, and corporate buildings etc., to provide wayfinding, exhibitions, marketing and outdoor advertising.
Digital signage is defined as a "remotely managed digital display typically tied in with sales, advertising and marketing"  or as "a network of electronic displays that are centrally managed and individually addressable for the display of text, animated or video messages for advertising, information, entertainment and merchandising to targeted audiences."
There are many different uses of digital signage that will allow a business to accomplish several goals. There is no definitive list of potential applications. However, some of the most common applications include Public information, Internal information, Product information, Information to enhance the customer service experience , Advertising and Promotion, Brand building, Influencing customer behaviour, Influencing product or brand decision-making, Enhancing customer experience, Navigation, Reservations etc.
Acme Digitek has a tie-up with a number of Manufacturers of different types of Displays viz. LED Displays, LFD’s etc., and have also tied up with the Manufacturers/ Suppliers of the Video Wall Controllers and Digital Signage Hardware/ Software Solutions provides so as to provide turnkey Video Wall/ Signage Solutions to our customers.