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The panel can be illuminated by fluorescent light bulbs or LED lighting strips. The efficiency of light boxes improved dramatically after the introduction of LED technology. The user inserts a graphic, which can be changed easily. Some light boxes are designed especially for outdoor purposes so they are more weatherproof. [citation needed]
Electronic signs may be used indoors or outdoors. The display technologies are varied and changing quickly. Because of new display technologies, electronic signs are able to present more clear, colorful, and vivid images. Animated electronic signs gradually replace traditional static signs and increasingly take signage market share.
Detail view of an LED display with a matrix of red, green and blue diodes The 1,500-foot (460 m) long LED display on the Fremont Street Experience in Downtown Las Vegas, Nevada, is currently the largest in the world. A LED display is a flat panel display that uses an array of light-emitting diodes (LEDs) as pixels for a video display.
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.
In the signage industry, neon signs are electric signs lighted by long luminous gas-discharge tubes that contain rarefied neon or other gases. They are the most common use for neon lighting , [ 1 ] which was first demonstrated in a modern form in December 1910 by Georges Claude at the Paris Motor Show . [ 2 ]
A more open question is whether most CCTV is cost-effective. While low-quality domestic kits are cheap, the professional installation and maintenance of high definition CCTV is expensive. [ 43 ] Gill and Spriggs did a cost-effectiveness analysis (CEA) of CCTV in crime prevention that showed little monetary saving with the installation of CCTV ...
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