LED deep into life

Effect of LED contents on our life has been great in life has been around in LED technology has played an indispensable role, such as traffic lights, such as energy-saving lamps, such as LCD TV, display around. In fact, LED technology after years of technical precipitation, has entered the homes of ordinary people.

LED (Light Emitting Diode), Chinese translated as "led", is a kind of emitter current is directly injected into the semiconductor material is in (GaP, GaAs) applied current, using in vivo electron and hole which combines light, its production application usually arsenic, phosphorus, gallium III-V family of materials. After nearly a hundred years of development, has completed the development of LED three primary colors, so that LED into the full color application stage, has been widely used in many fields. Now in the market has been much attention to the big screen LCD TV people look at the heart itch, but a lot of retired consumers are mostly considered after the choice of the traditional CRT TV, the price is too expensive? The answer is definitely not, and now the big screen TV, although not cheap, but it will not be the main reason to hinder the purchase. The author is the mother of an account for you to see the TV: the normal use of the lamp life is 10000 hours, according to the guide often introduce the argument, can see the 5000 TRW ten years of watching 2 hours a day, 4 hours a day is 2500 days, there are 7~8 years, does not seem to count short, but many retired old man had nothing to do all day, often in front of the TV for a whole day, it is no exaggeration to say, from the morning to the evening before going to bed, this is down to how many hours a day? Afraid to have 15 hours.

How long will it take to count a light bulb? How much time will have to replace the light bulb, the cost of a light bulb? How much is the cost of electricity brought by the big screen TV? It's probably not a lot of money to use these costs separately, but they add up to a huge amount of money. The LED bulb can make the life of the bulb to improve a lot, while the consumption of electricity, but also a lot of small, plus the two can bring indirect benefits for everyone to believe that I do not have to repeat the.

In the big screen TVs longer more widely applicable crowd

In addition to the TV products, the largest application of LED in the display device should be the application of the projector light source. LED said as a projector light source, once the technology clearance, then the entire projector industry is a revolutionary change. All the time, because the projector bulb temperature is high, the heat dissipation problem has been solved, not only for the lifetime of the projector has the influence, also has certain requirements for the projector adapt to the working environment, which makes the projector for normal industry in many relatively harsh environment.

Now the volume projector has been very big, even if it is a portable product needs to occupy a hand, not a pocket can be solved, that is because, in order to ensure the brightness of the projector, the projector manufacturers have to use in the big wattage bulb, so that the temperature rise sharply, thousands of degrees is not an exaggeration. Statement. In order to ensure the projector is not because of overheating fault, manufacturers have to install the projector heat sink strength, and heat dissipation equipment not only need the space, but also need a lot of air flow, a small enclosed space can not meet the conditions for the use of projector.

Compared with the traditional light bulb, LED belongs to the cold light source, that is, in normal work, the temperature of the LED bulb is much lower than the traditional light bulbs, low to even do not need to consider too much heat. As a result, for the large projector is used to ensure the projector cooling and air way volume is no longer necessary, which will allow the projector can even some day in the future, the integration of mobile phone to become a function like a camera.

To remove the influence of temperature on the life, is also a relatively large change, now the projector lamp 2000 hours basically is the limit, and the LED is a semi permanent source of life, mostly in more than ten thousand hours, is the traditional lamp five times, for the projector enthusiasts, as well as personal and home users LED lighting is brought about by the use of lower cost and lower volume small, is very convenient.

Application of traffic - LED

Here we come to talk about LED as a signal of the role, in fact, as early as the white LED lamp as the daily lighting and display devices such as red and blue before, LED LED use is very common in our side can often see the place. In fact, there are many traffic lights and car lights have been using LED light source.

In so doing, the energy consumption is only one aspect, for traffic lights, the response time of an indicator is also very important, if the response time is about display in order to prevent screen ghosting, then the traffic lights, is related to life events.

I was in a LED in the traffic application program, remember that the researchers cited a very practical example, it is compared with traditional LED indicator reaction in the response time, can make up to 100 kilometers per hour in advance auto stop distance of 6 meters. We can not look down on the distance of 6 meters, a high-speed vehicle if you can in front of the car suddenly slowed down in advance of the case of more than 6 meters to stop and run out of more than 6 meters, the gap may be life and death