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Introduction to outdoor display market and development trend

LED display has experienced a development process from single or double color display to full color screen since it entered the application market. In the single-or dual-color era, LED-based highlighting features were mainly used for signal indication, including traffic signals, bank information release and other fields, until the invention of blue LED chips with commercial application value in 1993, which made full color screens possible. LED full color truly achieve large-scale application, full color, gradually replace outdoor LED curtain light box signs, traffic signals extends to the induced traffic conditions and traffic information release, large transport, airports, railway stations, the civil aviation airport has a lot on the outdoor LED display, from the flight information display to all kinds of advertising screen, LED display in the field of sports application, government agencies information release, timely warning of natural disasters, large-scale enterprises, exhibition outdoor display to the current network celebrity chain base large-scale outdoor publicity, forming a huge market of more than 15 billion yuan outdoor display.

Early full color screen is mainly used in large outdoor advertising, the screen pixel spacing is large, only suitable for distant viewing. With the progress of technology, the spacing between pixels has been reduced continuously. SMD outdoor LED display screen has opened the prelude of outdoor display screen. As the pioneer of the first SMD production line, and the mass production of 1515 outdoor lamp beads in 2008, Ruifeng Photoelectric packaging leads the whole industry.

Outdoor displays need to be addressed

- Glue filling, high sealing, with Ruifeng photoelectric technology precipitation for many years, the use of its own unique production process, successfully achieve easy glue filling, high sealing, greatly improve the reliability of the product, to meet the application requirements in a variety of harsh outdoor environment.

- In view of the common problems in the industry, such as low light intensity and high power consumption, Ruifeng Photoelectric optimized the light structure of the products in terms of packaging process and material selection, and the brightness of the products was 28% higher than that of similar products.

- PIN foot tensile structure design, customers can apply the mask to achieve the thickening design, higher mechanical strength, more significant reliability.

- The product also adopts the high-density matte black design to improve the blackness of the lamp body, improve the contrast, clear and delicate picture quality, brilliant color.

- Outdoor devices of Ruifeng Photoelectric, good UV anti performance, waterproof grade up to IPX8

By comparison and test, the main performance of Ruifeng Photoelectric products is in the forefront among the products of the same level in the market. Humidity sensitivity grade up to MSL1, good air tightness, with excellent waterproof and moisture-proof ability.

Outdoor display application example: LED road warning system scheme

LED Traffic Variable Information sign (VMS) is an important device for traffic condition and traffic guidance information release. It is a traffic information display device with LED light emitting device as the basic display unit, and has the function of graphic and text display. According to the traffic, weather and command and dispatch part of the command information, the operator can issue a variety of announcements to the variable information board, so as to effectively induce the traffic flow, improve the traffic transportation capacity of the road network, and provide high-quality services for drivers to drive safely and quickly.

According to the road type, the traffic display screen can be divided into highway display and urban road display.

Highway traffic series, because the LED traffic display is directed by the drivers on the highway, it needs to have: high display brightness, far viewing distance, screen pixel density is sparse, etc. In general, the types of LED traffic displays installed on expressways are: gantry LED variable information sign, cantilever LED variable information sign (low definition), single column LED variable information sign, speed limit sign LED variable information sign.

Urban intelligent transportation series, because the general traffic speed in the city, the driver observation distance is much lower than the highway situation, this kind of road is more suitable for the use of high definition, multi-function LED variable information signs, and equipped with optional road condition detector interface. In general, the types of LED traffic displays for urban traffic include: cantilevered LED variable information signs (high definition), and compound LED variable information signs.

Both highway traffic and urban road traffic display, compared with the conventional floor display, require high brightness, emphasis on text display. As a result, early traffic displays mostly used low-angle, high-brightness in-line leds, such as LAMP 346/546. However, with the significant improvement of the brightness and quality of the patch LED and the reason that the production efficiency is higher than that of the in-line LED, more and more traffic displays begin to adopt the patch LED, such as SMD 3535/2727 RGB/RGBY/Y, etc.

Ruifeng outdoor SMD adopts PIN PIN stretching structure, with strong outdoor waterproof, moisture-proof, UV-proof performance, waterproof grade up to IPX8, for the current outdoor display key choice products. Ruifeng outdoor 3535RGB height LED, can well solve the road traffic display required ten thousand level brightness requirements.

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