Diode of glow of LED(Light Emitting Diode) the electron shows screen is collect microelectronics technology, computer technology, information processing at an organic whole large indication screen system. It exceeds big picture with its, exceed the original dominant position such as agile and strong visual sense, changeful indication means, become comprehensive indication system is used on international at present. It is the product with information transmission epoch-making facilities. According to its glow wavelengh can be divided roughly for visible light LED, infrared ray LED. Visible light LED with power consumption small, life is long, calorific estimate rate of glow of little, monochromatic, response fast, be able to bear or endure collide machine physical characteristic good, volume is minor etc have not at traditional photoelectricity the character of new product, apply extensively at car, communication the respect such as indication screen of mark of new product of sex of new product, information new product, consumption, name and large information. Infrared LED also has the character of visible light, dan Jibo is long in sightless smooth limits, basically apply in remote control, wireless communication, fiber-optic communication, feeling to measure, the respect such as automata.
LED electron shows the system is a kind of brand-new high-tech advertisement annunciate propagandist media, since 80 time end is in city of chinese mainland face, actor or actress character with its valence cheap, low power consumption, can show graph article data already, with can showing video picture, picture clarity, colour colourful, indication means is agile and changeful wait for a function to popularize application quickly in all trades and professions.
The course develops for years, technology of development of LED indication screen, production already tended mature, stable, new product quality already had very big rise, it is a kind of maturity new product. Current, LED shows screen is new line of the products is more. Basically have: Monochromatic of screen, graph article screen, double base indication screen of lattice of electron of color, complete color and canal of LED electron number display screen. In afore-mentioned new line of the products, lattice of complete color electron shows one of products of the mainstream that screen already was now, other new line of the products already received wider and wider application.
LED indicates systematic good point
LED belongs to parts of an apparatus of solid state glow, have the following advantage:
Service life grows ◆ (be more than 100 thousand hours) , photoelectricity changeover efficiency is tall, province report.
◆ trends answers speed fast (NS class) , can achieve the indication refresh rate of video class, speed of full screen refresh above of second of 72 frame ／ .
◆ driving voltage is low (DC ＋ 5V) , can direct with microcomputer chip interface, need not circuit of special design interface; Accord with green computer mark;
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