Indication technology reachs application

Indication technology is one kind will reflect the environment the information of external object (optical. Of electricity. Acoustical, chemical wait) , through commutation processing, with proper form (basically have image, graph, number, character) try to show, watch for the person, a kind of analysis, technology that use. So called now indication technology, can call electronic information to demonstrate a skill, it is to build in optical, chemical, electronics, mechanistic, acoustics wait for technology base to go up have somehow omnibus technology. The electron shows technical application and the range that consider to involve are very wide, include the research of the glow mechanism of all sorts of glow material, test; The fundamental of all sorts of indication means reachs its configuration, the choice that shows used data and parts of an apparatus and the craft that make; The input of indication information, commutation, processing and control, etc. As the development of science and technology, as economy, military affairs, society and the development that people lives, of information kind

Kind increase ceaselessly with the amount. People lives in information in plan meeting, be in all the time obtain some kind of information. Consider to make clear, there are nearly 2 ／ in the information that the person obtains 3 pass an eye. And indication technology, provide a window of various important information for people just about; And, can imagine, indication technology still has extremely capacious development scope of operation. The application of indication technology already very extensive, be in stadium house, big screen shows the system can show match what is actually happening and match achievement, time to wait; The trade is carried in traffic, can show moving case; In financial industry, can show financial information in real time, wait like stock, exchange rate; In system of commercial post and telecommunications, can show to broad client announcement, message, advertisement is waited a moment. Indication technology still can apply extensively at system of unit of production of industry and agriculture, military affairs, medical treatment, public security and even space navigation career to wait for national economy, in social life and martial domain, having main effect.

Glow diode shows application

Luosaifu (Lossewo. W. ) the P that forms accidentally in discovering semiconductor SiC 1923 - the light in N knot blasts off, but the P that uses semiconductor - the glow diode that N writtens guarantee electroluminescence principle is made just arrived 60 time later period just is able to develop quickly. In recent years, as a result of semiconductor make and perfect, glow diode

(LED: LightEmittingDiode) already showed in solid with each passing day in take dominant place. LED is taken seriously extensively and get developing quickly, the advantage that has with itself place is not divided. These advantages are wraparound rising is: Brightness depress of report of tall, job, power comsumption small, miniaturization and easy match with integrated circuit, drive simple, life is long, impulse withstand stabilize with function. The development perspective of LED is very wide, shining higher forward at present degree, taller weatherability, higher glow density, taller glow uniformity, dependability, panchromatic changes direction to develop. Differ by the material that constitutes semiconductor and can get brilliant is nodded can giving out different colorific LED. Application is the at present widest is LED of red, green, yellow. And the development of blue and pure green LED had reached practical level. Tell from indication respect, LED can show character, number (the number is in charge of) , also can show graphical picture (LED matrix module) , from applied respect, LED shows can use at indoor environment namely, also can use at the environment outdoor. 　
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