FAQs (Frequently Asked Questions)
Q:What kind of
A:The TFT LCD panel is an element controls/displays inlet of a backlight using the
of liquid crystal. Using the property that the projection of inlet light refracts toward the major axis of the liquid element, it controls the direction of inlet light and displays it. Since the refraction ratio of inlet light on liquid crystal varies with the inlet angle of the light, the viewing angle of a TFT is much narrow than that of a CDT. Usually, viewing angle refers to the point where the contrast ration is 10. Many ways to widen the viewing angle are currently being developed the most commonly used approach is to use a wide viewing angle film, which widens viewing angle by varying the refraction ratio. Also IPS (In Plane Switching) or MVA (Multi Vertical Aligned) is used for wider viewing angle.
Q:Why is there no flicker on an LCD Monitor?
A:Technically speaking, LCDs do flicker, but the cause of the phenomenon is different from that of
CRT monitor
Q:Why is an LCD monitor virtually free of Electro Magnetic Interference?
A:Unlike a CRT, an LCD monitor does not have key parts that generate Electro Magnetic
Interference, especially magnetic fields. Also, since LCD display utilizes relatively low power, its power supply is extremely quiet.
RETURN TO TOP OF THE PAGE
Ergonomics, Ecology, and Safety Standards
Q:What is CE mark?
A:The CE (Conformité Européenne) marking is required to be displayed on the regulated product
placed for sale on the European market. This mark "CE" means that a product complies with an applicable European Directive. A European Directive is a European "Law" which relates to health, safety, environment and consumer Protection, much the same as the U.S. National Electrical Code and UL Standards.
Q:Does the LCD monitor conform to general safety standards?
file:///D/Grace/150P2/english/150p2e/safety/saf_faq.htm (7 of 8) [9/5/2001 11:06:37 AM]