What's the difference between LED contour lamp and LED full color tube?

Theme: Open up a new world of LED decoration-LED is a kind of semiconductor that can convert electric energy into visible light. Because of its advantages of easy control, low-voltage DC drive, rich color expression after combination and long service life, it is widely used in urban lighting engineering and large-screen display system. The bar ballroom uses color wall screen as indoor display curtain wall, which is novel, environmentally friendly and rich in colors, reflecting the characteristics of high-grade discos. Keywords: With the rapid development of LED technology, color wall screen, display curtain wall and display unit are more and more widely used. From the early traffic lights, advertising display boards and automobile taillights to today's spherical lights, fence lights, buried lights, floor tile lights, courtyard lights and so on. They have developed from the field of indication and display to the field of landscape decoration lighting, and will also attack the field of ordinary lighting sources in the future, replacing white light and fluorescent lamps as the pride of the green lighting era in 2 1 century. LED is highly regarded in the field of outdoor urban landscape decoration and lighting because of its characteristics of energy saving, environmental protection, safety, long service life, maintenance-free and replaceable. According to the market demand, Walker Semiconductor Lighting Company further pushes the application of LED in the field of landscape decoration lighting from outdoor to indoor, and its representative product is color wall screen. Color wall screen is a display unit composed of multiple light-emitting diodes. Through the programming of power supply and control part, it can produce a variety of colors and combinations of light and shade, which can fully meet the requirements of some entertainment and places with special lighting effects, such as high-end discos, dance halls and so on. The appearance of color wall screen has been well received by customers, and more and more applications have opened up a new world of LED indoor landscape decoration. 1. Opening up LED indoor landscape 1. 1 Technical background The color wall screen studied in this paper has been successfully applied to the wall of the Emerald Pearl Ballroom Bar in Shenzhen Xindu Hotel, forming a refreshing and visually shocking indoor display curtain wall. The practical application effect of this project has reached the customer's requirements-novel, environmentally friendly and rich in colors, which embodies the characteristics of high-end discos. The solution of color wall screen is based on the application and control technology of light emitting diode LED, precisely because LED has incomparable advantages over other light sources. LED (Light Emitting Diode) is a kind of semiconductor that can convert electric energy into visible light. Its characteristics are: ① high efficiency: according to the usual definition of luminous efficiency, the luminous efficiency of LED is not high (generally 10-30lm/W, and the luminous efficiency of orange-red LED with the highest luminous efficiency can reach 5lm/w at present), but the efficiency can reach 80-90% because the spectrum of LED is almost concentrated in the visible light band, while the visible light efficiency of incandescent lamp with similar luminous efficiency is only/kloc. ② High light quality: Because there are no ultraviolet rays and infrared rays in the spectrum, there is no heat and radiation. LED is a typical green lighting source. ③ Pure light and color: Different from the full-band spectrum of incandescent lamps, the typical LED has a narrow spectrum and emits pure light. ④ Low energy consumption: the power of a single LED is generally 0.05- 1W, and different requirements can be met according to different situations through clustering, with little waste. Especially when colored light is needed, using white light to filter color is troublesome and wastes energy, but the inherent color of LED is unique. ⑤ Long life: The nominal life of luminous flux decaying to 70% is 654.38+ million hours. In fact, it is almost infinite. ⑥ Reliable and durable: there are no easily damaged parts such as tungsten wires and glass shells, so the possibility of abnormal scrapping is very small and the maintenance cost is extremely low. ⑦ Flexible application: small size, flat, easy to develop into light and short products, and make various forms of specific application products such as points, lines and surfaces. ⑧ Safety: The working voltage of the monomer is roughly between1.5v and 5v ~ 5v, and the working current is between 20ma and 70ma. ⑨ Short response time: suitable for frequent switching and high-frequency operation. (10) Environmental protection: waste can be recycled without pollution; Unlike fluorescent lamps which contain mercury. Flexible control: by adjusting the current, the lights can be adjusted, the combination of different lights colors can be adjusted, and the time sequence control circuit can realize various dynamic changes. These advantages make LED considered as an ideal green light source, and it has been successfully applied in the field of engineering lighting and display. The application of semiconductor technology in urban night lighting engineering and indoor decoration lighting and exhibition engineering projects gives people a brand-new feeling: for example, it has advantages over traditional neon lights, incandescent lights and tungsten halogen lamps in terms of color expression ability, lighting control ability, environmental protection and energy saving. The indoor color display curtain wall project of DISCO Bar in Emerald Pearl Ballroom of Shenzhen Xindu Hotel combines the application of LED lighting technology and display technology, and uses the pixel combination of "light bulb" to construct a dynamic and changeable display wall. K $ UJODT 1.2 The main problems to be solved in this design At present, the lighting and control system in the disco bar can be described as varied and dazzling. If we want to build a shocking full-color display wall as the environmental background, we should first choose LED as the light source, instead of the traditional thermal radiation light source and gas discharge light source with high power consumption, high control difficulty, short service life and slightly poor system safety factor. stable