LED lights are just one form of digital signage that can quickly display data to onlookers.
Digital signage is a relatively new technique that offers the flexibility and speed of digital computing to the constantly changing world of marketing and visual communication. Whether it be notifying drivers of impending changes in road safety conditions or informing customers of the latest money-saving deal, digital signage is an efficient, practical method of releasing information.
LED Displays
LED displays have been used for a number of years to display information. LED stands for Light Emitting Diode. A common example of this form of digital signage can be seen outside of most banks in the tall display signs that show information such as the date, weather or announcements regarding the bank. Letters and numbers appear to scroll across an electronic board. Inside the display, a computer turns small lights on and off in an order that produces this readout. While advancements have been made in LED lighting technology, these mostly impact the size of the lights themselves. With smaller lights, the complexity of information can be increased.
Networked Flatscreen TVs
If you look around many college campuses, you will see flatscreen TVs mounted on walls displaying current events, academic and recreational calendars, photos of noteworthy students and other important visual information that is designed to be seen by the college community. Concerto, Xibo and EnQii are some examples of software solutions for setting up a network of television screens that disseminate information across an entire community. By connecting all of these output devices to a network, altering information on a large scale becomes much simpler.
Computer-Generated Holography
While not as common as the other forms of digital signage, holographic displays have the ability to catch the eye perhaps more effectively than other elements due to their immersed, three-dimensional quality. Holographs are created using lights and lasers that serve to make up the illusion that a three-dimensional object is present in an environment. For example, a moving virtual person could appear in a store to answer questions or direct you toward an important sale. Computer-generated cartoon characters could approach children and lecture them on safety upon entering a theme park or playground. This signage technique is not as popular due to the time involved in developing realistic 3D projections and the cost associated with expensive multi-projection units.
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