At present, it is mainly used in the following aspects: (1) LED lamps are widely used in various indoor and outdoor display screens, including full-color, double-color and monochrome display screens. There are more than 100 units in China. Development and production. Traffic signal lamp mainly uses ultra-high brightness red, green, yellow LED. Because the use of LED signal lamp not only saves energy, but also has high reliability, so in the country, traffic signal lamp is being gradually updated, and the promotion speed is fast, the market demand is very large, is a good market opportunity. (2) The automotive lamps used in the automotive industry include instrument panels, sound indicator lights, backlight of switches, reading lights and external brake lights, taillights, side lights and headlights. Incandescent lamps for automobiles are not resistant to shock, damage, and short life. They need frequent replacement. In 1987, China began installing high position brake lights on automobiles. Because of the fast response speed of LED, the driver can be warned to brake early to reduce rear-end accidents. In developed countries, the central rear brake lamp made of LED has become a standard part of automobiles. HP Company in 1996 semiconductor lighting.
The LED taillight module can be combined into all kinds of car taillights. In addition, in automotive dashboards and other lighting parts of the light source, can be used as ultra-high brightness light-emitting lamp, so are gradually using LED display. China's auto industry is in a period of great development, and it is an excellent opportunity to promote ultra high brightness LED. In recent years, an annual output value of 1 billion yuan will be formed, and the output value of 3 billion yuan will be formed in 5 years. (3) LED backlight is the most noticeable backlight with high-efficiency side light. As the LCD backlight, LED has the characteristics of long life, high luminous efficiency, non-interference and high cost performance. It has been widely used in electronic watches, mobile phones, BP computers, electronic calculators and card-swiping machines. With the miniaturization of portable electronic products, LED has become more and more popular. Backlight has more advantages, so backlight fabrication technology will be developed to be thinner, low power consumption and uniform. LED is the key device of mobile phone, a regular mobile phone or PHS needs about 10 LED devices, while a color screen and mobile phone with camera function needs about 20 LED devices. At this stage, the amount of backlight is very large, and 3 billion 500 million LED chips are needed in a year. At present, China's mobile phone production is very large, and most of the LED backlight is imported, for domestic LED products, this is an excellent market opportunity. (4) The early products of LED illumination light source have low luminous efficiency, and the light intensity can only reach several to dozens of mcd. It is suitable for indoor applications, such as household appliances, instrumentation, communication equipment, microcomputer and toys. At present, the direct goal is to replace incandescent lamps and fluorescent lamps with LED light sources. This trend of substitution has begun to develop from local applications. To save energy, Japan is planning to replace incandescent light-emitting diodes (known as "illuminating Japan") with a budget of 5 billion yen for the first five years. If LED replaces half of the incandescent and fluorescent lamps, energy equivalent to 6 billion litres of crude oil can be saved annually, equivalent to the power generation of five 1.35 x 106 kW nuclear power plants, and can be reduced. Reduce the production of carbon dioxide and other greenhouse gases, and improve the living environment of people. China also invested 5 billion in 2004 to develop energy saving and environmentally friendly semiconductor lighting projects. (5) Other applications, such as a popular flashing shoe for children, where the built-in LED flashes when walking, use 500 million light-emitting diodes a year in Wenzhou alone, and use light-emitting diodes as power indicators for electric toothbrushes.