SMD LED is a kind of LED components, and plug-in led different is only the package form, it has a smaller volume, better controllability, the light angle is also greater, it has a good controllability, blue-jin photoelectric can be used in different semiconductor materials to produce different light-emitting color led, SMD LED and can be through the fluorescent powder, Process color and other ways to finally get a variety of visible light.
Use of SMD LED:
Since the SMD led popular, gradually preempted the plug-in led market, SMD LED's main use distribution in 6 of LED application market.
1, LED display, the last century 90 's, LED technology leaps and bounds, LED display rapidly open up the market, Blue led appearance, LED display into the Full-color era, today, outdoor LED display everywhere, become a bright figure in the advertising industry.
2, car lighting, super bright LED can be made into the car brake lights, taillights and directional lights, can also be used for instrument lighting and car lighting, it in vibration resistance, SMD LED power saving and long life than incandescent lamp has a clear advantage. Used as a brake light, its response time is 60ns, much shorter than the 140ms of the incandescent lamp, Driving on a typical freeway increases the safety distance of the 4-6m. LED as a recognized, low-carbon environmental protection of the typical representative, SMD LED low voltage and high light efficiency features, so that it quickly become the field of automotive lighting darlings, thus forming Bai, and even Chi market demand, LED automotive lighting market prospects.
3. LCD backlight, LED as the backlight of liquid crystal display, it can be not only as green, red, blue, white, but also as a color backlight, many products have entered the production and application stage. Recently, the LCD screen on the mobile phone to make back light source, improve the product grade, the effect is very good. With 8 Blue, 24 Green, 32 red bosmfc-led made of 15in (1in≈2.5cm) LCD backlight, can reach 120W, $number lm, SMD LED Brightness 18000nits (unmin, $literal). 22 LCD backlight is also made, only the 6mm thickness, Not only the color mixing effect is good, the color index also reaches more than 80. At present, SMD LED large-scale backlight is in the development stage, but the potential is great.
4, lighting, due to the increase in brightness and the price of light-emitting diodes, coupled with long life, energy-saving, drive and control is simpler than neon, SMD LED not only can flicker, but also can change color, so with ultra-high brightness led made of monochrome, multi-color and even discoloration of the light-emitting column with other shapes of colored light units, decorative tall buildings, bridges, Streets and squares and other landscape works very well, showing a faction of colorful, starlight flashing and streamer splendor of the scene. SMD LED There are many units to produce LED light beam up to more than million meters, tens of thousands of lights, LED lighting set up the city's embellishment.
5, illumination light source, with white light led appearance, the excellent performance of LED lamps quickly attract the attention of the major business, with the continuous development of technology, today LED lamps its luminous efficiency of 40%, is 8 times times the incandescent lamp, tungsten 2.5 times times, SMD LED fluorescent lamp twice times, the direction of light is strong, the utilization of light is high, and is cold light, no heat radiation, known as "the fourth generation of lighting source", quickly occupied the market.
6, the medical market, with the study of Light-emitting diode, LED can improve sleep, support the secretion of natural melatonin, enhance vigilance, SMD LED promote plant growth and other functions have been found, ultraviolet LED is widely used in the field of sterilization, advanced led Blu-ray therapy with the appearance, anytime, anywhere to release a suitable blue light, SMD LED Helps relieve stress and improve body function. LED light source in the field of medical applications continue to expand, the medical market must be another piece of the LED equipment plots.
Compare the plug-in led with other lighting, SMD LED Advantages:
1, small size: SMD LED is basically a small chip is encapsulated in the epoxy resin inside, very small, convenient for a variety of light source equipment design.
2, Pure color: SMD LED light color pure, soft, no glare, suitable for buildings, homes, shopping malls, banks, guesthouses, hotels, all kinds of public fields to do decorative lighting, add city color.
3, low heat: Single SMD LED power is very low, generally 0.04~0.08W, and light efficiency, so the calorific value is not high. Therefore, LED lamps and lanterns can be used as decorative lighting in the aquarium, and not produce a lot of heat caused by water temperature rise, affecting the growth of ornamental fish.
4, energy-saving: light efficiency, SMD LED low calorific value to create led components of the super energy-saving, LED lamps compared to traditional lighting and decorative lamps, LED lighting power is several times lower, but the effect is still high.
5, Controllability is strong: SMD LED color can almost cover the entire spectrum, the reaction speed is fast, at the same time has a strong controllability, can use control system for all kinds of control it is different from other light source of the salient characteristics.
6, environmental protection: LED soft lamp composition of the material whether led or FPC, its material is the use of environmentally friendly materials, belong to recyclable type, not because of a large number of use caused by environmental pollution and destruction.
7, low demand: SMD LED voltage is very low, can be a few number of light source with a linear constant-current driver can be perfect to achieve efficient and safe and stable led work.
8, fast response: Blue-jin SMD led no need to warm the lamp time, SMD LED sensitivity about 10^-9 seconds, so that it can be used in a variety of high-precision testing equipment.
9, sturdiness and durability: LED is fully encapsulated inside the epoxy resin, stronger than bulbs and fluorescent tubes. The lamp body also does not loosen the part, causes the LED not to be easy to damage.
10, long life: LED lamp normal service life is $number million hours, 24 hours a day non-stop work, its life expectancy nearly 10 years. As a result, the life expectancy of LED lamps is several times that of traditional lamps.
11, low radiation: no ultraviolet and infra-red in the spectrum, no heat, no radiation, small glare, cold light source, can be safely touched, belonging to the typical green light source.
How to buy quality SMD LED:
1, SMD LED is the most important chip, the chip directly determines the performance of the lamp bead! SMD LED market needs Kingo, not only is a penny of goods, but also to be discerning, SMD LED some unscrupulous manufacturers to save costs using low quality LED chips, LED lighting manufacturers to cause serious quality problems, of course, cost-saving and deliberately use ultra-low-priced SMD LED manufacturers not.
2, many led manufacturers try to develop alloy wire to replace the expensive gold wire. Although these alternatives are superior to gold lines in some properties, they are much worse in chemical stability than these alternatives make bonding filaments more susceptible to chemical corrosion, reduced reliability of light sources, long use of LED lamps, and more easily cut off dead lights by SMD LEDs. The bosmfc-led is welded with 99.9% pure gold connections. Resistance to hot and cold impact, UV yellowing, high TG value, light attenuation is minimal, can be achieved thousands of hours in a row of light to completely see the failure.
3, the PN junction temperature of the LED chip increases 10 degrees each, semiconductor devices will be a multiple decline in life, so whether it is SMD LED or LED lighting, all need a good thermal design, such as Lan Jin photoelectric This high-end SMD LED will use a thick silver layer of high-grade stent instead of copper stent, so that products play an excellent welding performance , such SMD LED will be able to withstand high temperature. SMD LED If the thermal solution is not good, the product stability is greatly reduced, so that led products become fast consumer goods, can not play the characteristics of long life led, and even some low-quality lamps due to the thermal problems of the phenomenon of spontaneous combustion.
4, LED light Black is the major led companies frequently encountered problems, this is because of the use of the material that affects the life of the light source, and this is likely to be encountered defective SMD LED manufacturers use low-quality materials, high-quality SMD led its material is used environmentally friendly recyclable materials, Not because of the heavy use of pollution and damage to the environment, while avoiding the black LED light source, in fact, a lot of the SMD led materials are affecting their longevity, such as the Japanese-Asian phosphors can even put SMD led service life of 1-2 years.
SMD LED features ·
① luminescence principle is a cold glow, rather than by heating or discharge luminous, so the component life than tungsten bubble length about $number times, about 100,000 hours.
② does not need to warm the lamp time, the light response speed is faster than the General Electric lamp (about 3 ~ 400ns).
The ③ electro-optic conversion efficiency is high, SMD LED the electricity consumption is small, compared to the bulb province about 1/3 ~ 1/20 energy consumption.
⑤ has good shock resistance, high reliability and low system running cost.
⑥ easy to small, thin, lightweight, no shape restrictions, easy to make all kinds of applications.
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