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Digital signage on the side of a building reports stock prices. Dow Jones News Ticker, Times Square Digital signage is a segment of electronic signage.Digital displays use technologies such as LCD, LED, OLED, projection and e-paper to display digital images, video, web pages, weather data, restaurant menus, or text.
Electronic signage (also called electronic signs or electronic displays) are illuminant advertising media in the signage industry. Major electronic signage include fluorescent signs, HID (high intensity displays), incandescent signs, LED signs, and neon signs. Besides, LED signs and HID are so-called digital signage.
Since the late 1990s, the most common technology used in new installations for variable message signs are LED displays. In recent years, some newer LED variable message signs have the ability to display colored text and graphics. Dot-matrix variable message signs are divided into three subgroups: character matrix, row matrix, and full matrix.
Seven-segment LED displays were in widespread use in the 1970s and 1980s, but rising use of liquid crystal displays, with their lower power needs and greater display flexibility, has reduced the popularity of numeric and alphanumeric LED displays. Digital RGB Digital RGB addressable LEDs contain their own "smart" control electronics.
Digital billboards can be designed to display running text, have several different displays from the same company, or provide several companies with a certain time slot during the day. Flexible and real-time scheduling can decrease traditional upkeep and maintenance costs, and some billboards may measure audiences or serve dynamic content.
[4] [5] In addition to signage, neon lighting is used frequently by artists and architects, [4] [6] [7] and (in a modified form) in plasma display panels and televisions. [ 8 ] [ 9 ] The signage industry has declined in the past several decades, and cities are now concerned with preserving and restoring their antique neon signs.