In March 2009, POPAI released the first of three digital signage standards to promote "interoperability between different providers". "Screen-Media Formats"[17] specifies the file formats that digital signage systems should support. The objective of this and future standards documents from POPAI is to establish a foundation of performance and behavior that all digital signage systems can follow.

Digital signage in the Warner Village Cinemas in Taipei
Digital signage in the Showcase Cinema de Lux in Derby, UK
Digital signage in a pharmacy store

Digital signage relies on a variety of hardware to deliver the content. This is typically a display screen, player server and a content management server (sometimes both the same thing), over an infrastructure (dependent on the location of these pieces of hardware).

Digital signage at a store.

Digital signage is a form of electronic display that shows information, advertising and other messages. Digital signs (such as LCD, LED, plasma displays, or projected images) can be found in public and private environments, such as retail stores and corporate buildings.

The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. Please improve this article and discuss the issue on the talk page.
1908 billboard, Salt Lake City, Utah

Early billboards were basically large posters on the sides of buildings, with limited but still appreciable commercial value. As roads and highways multiplied, the billboard business thrived.

* 1794 – Lithography was invented, making real posters possible
* 1835 – Jared Bell was making 9x6 posters for the circus in the U.S.

Billboard advertisements are designed to catch a person's attention and create a memorable impression very quickly, leaving the reader thinking about the advertisement after they have driven past it. They have to be readable in a very short time because they are usually read while being passed at high speeds. Thus there are usually only a few words, in large print, and a humorous or arresting image in brilliant color.

Flying Billboards: These are your artwork on an aerial billboard with sizes of up to 4000 square feet. Your custom billboard can be combined with a trailing changeable Aerial Banner.

Aerial banners: A long line of interchangeable characters (your message) towed by an aircraft at 500 to 1,000 ft about the surface. An aerial letter-banner can be attached to, and trail the big Flying Billboard.

This is a collection of articles on Commercial Signage in book form. All types are included with definitions, descriptions.

Commercial signage identifies a business or similar entity, assists in wayfinding and attracts customers. In societies where literacy is not widespread, such signs are necessarily primarily based on images rather than words. Since the rise of mass literacy, such signs generally include the name of the business, often in the form of a logo, but also continue often to use images in addition to and in the place of words.

Hollywood Sign on Hollywood Hills California, photographed from a flying helicopter.

http://www.losangeleshelicoptertour.net/hollywood-sign.htm

The Hollywood Sign from the air (via Google Maps)

http://maps.google.com/maps?hl=en&ie=UTF8&z=19&ll=34.134098,-118.321603&...

An overhead picture of the Hollywood Sign from the virtual earth camera.

http://www.bing.com/maps/default.aspx?v=2&FORM=LMLTCP&cp=34.134078~-118....