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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 narrower than that of a CDT. Usually, the viewing angle refers to the point where the contrast ration is 10. Many ways to widen the viewing angle are currently being developed and the most common approach is to use a wide viewing angle film, which widens the viewing angle by varying the refraction ratio. IPS (In Plane Switching) or MVA (Multi Vertical Aligned) is also used to give a 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 a CRT monitor -- and it has no impact of the ease of viewing. Flickering in an LCD monitor relates to usually undetectable luminance caused by the difference between positive and negative voltage. On the other hand, CRT flickering that can irritate the human eye occurs when the on/off action of the fluorescent object becomes visible. Since the reaction speed of liquid crystal in an LCD panel is much slower, this troublesome form of flickering is not present in an LCD display. 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 an 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 the CE mark? A: The CE (Conformite Europeenne) mark is required to be displayed on all regulated products offered for sale on the European market. This 'CE' mark means that a product complies with the relevant European Directive. A European Directive is a European 'Law' that 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? A: Yes. Philips LCD monitors conform to the guidelines of MPR-II and TCO 99/03 standards for the control of radiation, electromagnetic waves, energy reduction, electrical safety in the work environment and recyclability. The specification page provides detailed data on safety standards. More information is provided in the Regulatory Information section. RETURN TO TOP OF THE PAGE Troubleshooting Safety and Troubleshooting • FAQs • Common Problems • TV and Audio Problems • Video Problems • Remote Control Problems • Product Specific Problems • OSD Warning Message • Regulatory Information • Other Related Information This page deals with problems that can be corrected by the user. If the problem still persists after you have tried these solutions, contact your nearest Philips dealer. Common Problems Symptoms Having this problem? Check these items No Video/ Power LED off No picture, the LCD Monitor TV is not working l Check connection integrity at both ends of the video cable and/or power cord. l Electric outlet verification l Ensure AC power at the rear of the monitor TV is switched on. No Video/ Power LED on No picture or no brightness l Increase brightness and contrast controls. l Perform the LCD Monitor TV self-test feature check. l Check for bent or broken pins in video cable connector. Poor Focus Picture is fuzzy, blurry or ghosting l Auto adjust image through Menu -> Image Setting -> Auto Adjust. l Adjust Phase and Clock controls via OSD. l Eliminate video extension cables. l Perform the LCD Monitor TV factory reset (via Menu -> Factory Reset -> All Settings). l Lower video resolution or increase font size. Shaky/Jittery Video Wavy picture or fine movement l Auto adjust image through Menu -> Image Setting -> Auto Adjust l Adjust Phase and Clock controls via OSD l Perform the LCD Monitor TV factory reset (via Menu -> Factory Reset -> All Settings) l Check environmental factors l Relocate and test in other room Missing Pixels LCD screen has spots l Cycle power on-off l These are pixels that are permanently off and is a natural defect that occurs in LCD technology Stuck-on Pixels LCD screen has bright spots l Cycle power on-off l These are pixels that are permanently on and is a natural defect that occurs in LCD technology Brightness Problems Picture too dim or too bright l Perform the LCD Monitor TV factory reset (via Menu -> Factory Reset -> All Settings) l Auto adjust image through Menu -> Image Setting -> Auto Adjust l Adjust brightness & contrast controls Note: When operating in DVI mode, the contrast adjustment is not available. Geometric Distortion Screen not centered correctly l Perform the LCD Monitor TV reset on "Position Settings Only" l Auto adjust image through Menu -> Image Setting -> Auto Adjust l Adjust the centering controls l Ensure the LCD Monitor TV...