Home > News > Content
LED Display Modules Features And Development
Jul 13, 2017

LED Display Modules features and development

Without changing the material, in the limit range of the LED Display Modules, the means to increase the brightness is to raise the current, and as the current increases, the heat of the LED Display Modules will increase dramatically. Using LED Display Modules light source portable projector, or micro-cast friend, must be deeply experienced, LED Display Modules light source projector, very hot, and generally there will be obvious noise. These products, the fuselage of the fuselage is on the one hand, the key or its own calorific power. With the increase of power, LED Display Modules of heat dissipation problem is increasingly outstanding, a large number of actual application shows that the basic cause of LED Display Moduless can't increase the input power, is due to the LED Display Modules will release a large amount of heat in the process of work, make the pipe junction temperature rising rapidly, thermal resistance. The higher the input power, the higher the heating effect. Performance changes will lead to the rise of temperature and attenuation, the radiative recombination increases, the components of leakage current increases, the semiconductor material defect growth, metal electrode electric migration, encapsulation yellowing with epoxy resin, etc., seriously affect the photoelectric parameters of LED Display Moduless. Even the power LED Display Modules fails. Therefore, it is becoming increasingly important for LED Display Modules devices to reduce thermal resistance and junction temperature and to study the thermal characteristics of light-emitting diodes.

LED Display Modules development status

The current global energy shortage concerns rise again under the background of the energy saving is one of the important problems we face the future, in the field of lighting, LED Display Modules application of luminous products are attracting the attention of the world, LED Display Modules as a new type of green light source products, must be the development trend of the future, will enter the 21st century LED Display Modules as the representative of the new era of lighting source.

China's LED Display Modules industry started in the 1970s. After 30 years of development, LED Display Modules industry in China has initially formed include LED Display Modules epitaxial wafer production preparation, LED display, LED Display Modules chip module chip encapsulation and LED Display Modules, a relatively complete industrial chain, product application under the impetus of the "national semiconductor lighting project", Shanghai, dalian, nanchang, xiamen, shenzhen, yangzhou, wide continent and shijiazhuang seven national semiconductor lighting project industrialization base. The Yangtze river delta, the pearl river delta, the fujian triangle and the northern regions became the focal points for the development of China's LED Display Modules industry. At present, the development of China's semiconductor lighting industry is good, and the development of epitaxial chip enterprises is particularly rapid, the enterprise scale continues to maintain relatively fast growth, and the lighting application has made great progress. 2007 China LED Display Modules application products output value has exceeded 30 billion yuan, has become a full-color LED Display Modules display landscape lighting, solar LED Display Modules application products such as the world's biggest exporter of production and new semiconductor lighting industry is emerging. Domestic has formed certain characteristics in the field of lighting, outdoor lighting including LED Display Modules, the fastest growing there have been hundreds of LED Display Moduless street lamp enterprises and construction of the dozens of demonstration way, but in general indoor lighting market remains behind. The focus of the 2008 Beijing Olympic Games on LED Display Moduless has LED to a new understanding of LED Display Moduless, which have powered the development of China's semiconductor lighting industry. At present, China's semiconductor industry is big and not strong, and the core competitiveness still needs to be further improved. For domestic enterprises to expand scale, improve product quality and technology level is the primary task, increase the ability of future giant patent authorization charge, or gradually break through research and development core patents.

LED Display Modules development history

LED Display Modules was developed in the early 1960s by the principle of semiconductor P ยท N. In 1964, red LED was first developed, then yellow LED Display Modules appeared. It was not until 1994 that the blue and green LED Display Modules was developed successfully. In 1996, the white LED Display Modules was successfully developed by Japanese company Nichia. LED Display Modules, with its inherent characteristics, such as energy saving, long service life, resistant to vibration, fast response speed, cold light source, etc., are widely used in light, light, screen, landscape lighting and other fields, in our daily life everywhere, household electrical appliances, telephone, dashboard lighting, auto anti fog lamps, traffic lights, etc. However, due to its poor brightness and high price, it can not be used as a universal light source. In recent years, along with the deepening of the research of semiconductor luminescence material, LED Display Modules manufacturing technology progress and the development of new materials (nitride crystal and phosphor powder) and application of all sorts of color of ultra-high brightness LED Display Modules has made breakthrough progress, its luminous efficiency increased nearly 1000 times, colorant are implemented all the colors of the visible spectrum, the most important of these is the presence of the ultra-high brightness white LED Display Modules, the LED Display Modules applications across to efficient lighting source market becomes possible. It has been pointed out that the high brightness LED Display Modules will be one of the greatest inventions since Edison invented the incandescent light bulb.