Philips 170C4 user manual Ergonomics, Ecology and Safety Standards

Page 30

FAQs (Frequently Asked Questions)

A:The TFT LCD panel is an element that controls/displays the inlet of a backlight using the dual- refraction of a 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 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 (Conformité Européenne) 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.

file:///D/My%20documents/dfu/B2C/ENGLISH/170C4/safety/saf_faq.htm (7 of 8) [3/1/2004 5:57:44 PM]

Image 30
Contents Philips LCD Monitor Electronic User’s Manual Safety precautions and maintenance Installation LocationsReturn to TOP About This Guide Notational DescriptionsReturn to TOP Product Features Technical SpecificationsOptical Characteristics Resolution & Preset Modes User definable modesAutomatic Power Saving Vesa Mode Video Sync Power Used LED colorPhysical Specifications Pin AssignmentProduct Views Physical FunctionReturn to TOP Front View Product Description Optimizing PerformanceMore about FPsetup04.exe Description of the On Screen Display OSD TreeReturn to TOP On-Screen Display Customer Care & Warranty Glossary LCD Liquid Crystal Display Download and Print Printing instructions Read the FPReadme04.txt file before installing FAQs Frequently Asked Questions General FAQsFAQs Frequently Asked Questions Screen Adjustments Compatibility with other Peripherals LCD Panel Technology FAQs Frequently Asked Questions Ergonomics, Ecology and Safety Standards Return to TOP Troubleshooting Common ProblemsImaging Problems Green, red, blue, dark and white dots remain Regulatory Information TCO 99 InformationEnvironmental Requirements Flame retardantsTCO03 Information LeadRecycling Information for Customers EcologyCE Declaration of Conformity Energy Star DeclarationFederal Communications Commission FCC Notice U.S. Only Commission Federale de la Communication FCC DeclarationEN 55022 Compliance Czech Republic Only Vcci Notice Japan OnlyMIC Notice South Korea Only Polish Center for Testing and Certification NoticeClass B ITE Class B DeviceNorth Europe Nordic Countries Information Placering/VentilationBsmi Notice Taiwan Only Paikka/IlmankiertoPlassering/Ventilasjon Ergonomie Hinweis nur DeutschlandEnd-of-Life Disposal Information for UK onlyHow to connect a plug Brown Live LRegulatory Information Information for Users in the U. S Information for Users outside the U.SPhilips Flat Panel Monitors Pixel Defect Policy Pixels and Sub pixelsTypes of Pixel Defects Proximity of Pixel Defects Pixel Defect TolerancesAcceptable Level Accessory Pack Your LCDMonitor Connecting to Your PC Plug the power cord into monitor firmlyConnecting to Your PC Attach back cover to keep desk clear of unsightly wires To remove back cover Return to TOP Unfold and Fold the Base Unfold the Base Place monitor face down on a safe surface Pull up the basePush down the head of monitor Remove the Base ConditionFor Vesa standard mounting applications Remove the back cover Return to TOP Getting Started For Windows XP Return to TOP Your Philips F1rst Choice Warranty Just a phone call away Your International Guarantee International Guarantee Limited Warranty Computer Monitor Before Requesting Service Model # Serial # Philips Warranty Helpdesk Poland Czech RepublicHungary RussiaArgentina TurkeyAntilles BrasilParaguay ColombiaMexico PeruAustralia VenezuelaCanada NEW ZealandBangladesh ChinaHong Kong India IndonesiaKorea Philippines MalaysiaPakistan SingaporeMorocco TaiwanThailand South AfricaDubai Egypt
Related manuals
Manual 77 pages 2.97 Kb