Abstract
This paper present the Comparative analysis of emitted magnetic fields from Liquid Crystal Display(LCD) and that of Light Emitting Diode (LED) system. A total of eighteen Liquid Crystal Display and Light Emitting Diode Monitors from different manufacturers were used. The magnetic field was measured using a trifield guass meter. The trifield guass meter was placed perpendicularly to the monitors at 5cm steps from the monitor up to 70cm and the magnetic field from each monitor was recorded in milligauss. The result showed that the magnetic field of the liquid crystal display monitors is almost 2 times greater than that of the light-emitting diode monitors. The obtained results were compared with international occupational and general public recommended exposure limit and The result was found to be below the permissible dose limit according to the IEEE( Institute of Electrical and Electronics Engineering) standard. Although there is minimal evidence of the health risk associated with the use of Visual Display Units (VDUs) and it is inconclusive.”
Highlights
The use of computers has become almost inevitable throughout the world and very common in all sphere of life
The magnetic field in Milligauss is plotted against the Distance in cm
This study has shown that Liquid Crystal Display (LCD) and Light Emitting Diode (LED) computer monitors emit magnetic field
Summary
The use of computers has become almost inevitable throughout the world and very common in all sphere of life. The users usually encounter some electric and magnetic field from the systems. In the same way electric and electronic devices such as transmission lines, transmission lines, television and radio, mobile communication systems, as well as domestic electrical appliances are sources of included electric and magnetic [1]. One of the main characteristics that define an electromagnetic field (EMF) is its frequency or its corresponding wavelength. Fields of different frequencies interact with the body in different ways. One can imagine electromagnetic waves as series of very regular waves that travel at an enormous speed, the speed of light. The frequency describes the number of oscillations or cycles per second, while the term wavelength describes the distance between one wave and the next. Wavelength and frequency are inseparably intertwined: the higher the frequency the shorter the wavelength. [2]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
