Philips 170V9 user manual What are the advantages of TFT LCD compared with CRT?

Page 8

FAQs (Frequently Asked Questions)

Q:What are the advantages of TFT LCD compared with CRT?

A:In a CRT monitor, a gun shoots electrons and general light by colliding polarized electrons on

fluorescent glass. Therefore, CRT monitors basically operate with an analog RGB signal. A TFT LCD monitor is a device that displays an input image by operating a liquid crystal panel. The TFT has a fundamentally different structure than a CRT: Each cell has an active matrix structure and independent active elements. A TFT LCD has two glass panels and the space between them is filled with liquid crystal. When each cell is connected with electrodes and impressed with voltage, the molecular structure of the liquid crystal is altered and controls the amount of inlet lighting to display images. A TFT LCD has several advantages over a CRT, since it can be very thin and no flickering occurs because it does not use the scanning method.

Q:Why is vertical frequency of 60Hz optimal for an LCD monitor?

A:Unlike a CRT monitor, the TFT LCD panel has a fixed resolution. For example, an XGA monitor has 1024x3 (R, G, B) x 768 pixels and a higher resolution may not be available without additional software processing. The panel is designed to optimize the display for a 65MHz dot clock, one of the standards for XGA displays. Since the vertical/horizontal frequency for this dot clock is 60Hz/48kHz, the optimum frequency for this monitor is 60Hz.

Q:What kind of wide-angle technology is available? How does it work?

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 low of Electro Magnetic Interference?

file:///D/cd manual/philips/08/170V9/lcd/manual/ENGLISH/170V9/safety/saf_faq.htm（第 5／6 页）2/23/2008 3:27:41 PM

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Philips LCD Monitor Electronic User’s Manual Safety and Troubleshooting Information Safety precautions and maintenanceMaintenance OperationService Return to TOPFAQs Frequently Asked Questions General FAQsWhat if I get lost when I am making monitor adjustments? What is the Auto function?What does the Refresh Rate mean for LCD? Will the LCD screen be resistant to scratches?Screen Adjustments How should I clean the LCD surface?QCan I change the color setting of my monitor? Can the Philips LCD Monitor be mounted on the wall?What is a Liquid Crystal Display? Compatibility with other PeripheralsLCD Panel Technology How do LCDs compare to CRTs in terms of radiation?Why is there no flicker on an LCD Monitor? What are the advantages of TFT LCD compared with CRT?Does the LCD monitor conform to general safety standards? Ergonomics, Ecology and Safety StandardsWhat is the CE mark? Common Problems Imaging ProblemsVertical flicker appears Regulatory Information Recycling Information for CustomersEnergy Star Declaration Waste Electrical and Electronic Equipment-WEEECE Declaration of Conformity Federal Communications Commission FCC Notice U.S. Only FCC Declaration of ConformityCommission Federale de la Communication FCC Declaration Polish Center for Testing and Certification Notice EN 55022 Compliance Czech Republic OnlyErgonomie Hinweis nur Deutschland North Europe Nordic Countries InformationBsmi Notice Taiwan Only End-of-Life Disposal Information for UK onlyHow to connect a plug China RoHSReturn to TOP Information for Users outside the U.S Other Related InformationInformation for Users in the U. S Notational Descriptions About This ManualAbout This Guide Return to TOP Technical Specifications Lead-free ProductResolution & Preset Modes VideoAutomatic Power Saving Factory preset modesPhysical Specifications Pin AssignmentTilt Product ViewsPhysical Function Return to TOP Philips Pixel Defect Policy Philips Flat Panel Monitors Pixel Defect PolicyBright DOT Defects Acceptable Level Model Installing Your LCD Monitor Front View Product DescriptionRear View Optimizing PerformanceReturn to TOP Connecting to Your PC Accessory PackConnecting to Your PC Return to TOP Base Remove the Base ConditionReturn to TOP Getting Started For WindowsFor Windows Me For Windows XPFor Windows Vista On-Screen Display Description of the On Screen DisplayOSD Tree Return to TOP Customer Care & Warranty North America Canada USAYour Philips F1rst Choice Warranty Thank you for purchasing this Philips monitorJust a click away Just a phone call away F1rst Choice Contact Information Your Guarantee in Central and Eastern Europe Just a click awayPhilips Service and Consumer Information Centers Consumer Information Centers BelarusBulgaria Czech RepublicEstonia HungaryLatvia LithuaniaSlovakia SloveniaPoland RussiaUkraine AntillesArgentina BrasilColombia MexicoParaguay PeruUruguay VenezuelaCanada AustraliaNEW Zealand BangladeshChina Hong KongIndia IndonesiaKorea MalaysiaPakistan PhilippinesSingapore TaiwanThailand MoroccoSouth Africa DubaiYour International Guarantee Click here to access the Warranty Registration Card Your Philips F1rst Choice WarrantyUSALimited Warranty Computer Monitor Before Requesting Service To GET Warranty Service in Canada Just a phone call away Glossary Active matrixAmorphous silicon a-Si Aspect ratioColor temperature BrightnessCCFLcold cathode fluorescent light ChromaticitySUB Digital Visual Interface DVIIPS In Plane Switching GammaGrayscale HueLCD liquid crystal display Liquid crystalLuminance NitRefresh rate TFTthin film transistorUSB or Universal Serial Bus HubVertical refresh rate DownstreamReturn to TOP Download instructions Installing Your LCD monitor driverDownload and Print Printing instructions
Related manuals
Manual 85 pages 13.34 Kb Manual 76 pages 8.27 Kb

170V9 specifications

The Philips 170V9 is an impressive monitor that combines design, functionality, and performance, catering to both home and office users. With a 17-inch display, this monitor packs a punch in its compact size, making it ideal for workspaces where space is a concern while still providing a clear and vibrant viewing experience.

One of the stand-out features of the Philips 170V9 is its crystal-clear display resolution of 1280 x 1024 pixels. This resolution ensures sharp images and text, making it suitable for a variety of tasks, from office work to casual gaming. The monitor utilizes an LCD panel technology that enhances color reproduction and contrast, delivering vivid visuals that are essential for graphic design and multimedia purposes.

In terms of connectivity, the Philips 170V9 offers a range of input options, including VGA, which is often used in many computing environments. This versatility allows users to connect the monitor to various devices without any hassles, making it suitable for both older and newer systems.

Energy efficiency is another notable characteristic of the Philips 170V9. It is designed to be eco-friendly, boasting low power consumption levels, which helps reduce electricity bills and minimizes environmental impact. This monitor is also equipped with a high-efficiency power adapter that further adds to its energy-saving features.

Ergonomics play a significant role in the design of the Philips 170V9. It has a slim profile and a lightweight build, making it easy to adjust or reposition as needed. Moreover, the monitor supports various tilt angles, allowing users to customize their viewing experience for maximum comfort.

The Philips 170V9 integrates user-friendly technologies such as SmartContrast, which automatically adjusts display settings based on the content being shown. This feature enhances the overall viewing experience by optimizing colors and brightness for different applications.

In summary, the Philips 170V9 is a well-rounded monitor that offers high-resolution display capabilities, eco-friendly features, versatile connectivity options, and ergonomic design. It stands out as a reliable choice for those seeking quality and performance in a compact form, making it an excellent addition to both home and professional environments. Whether for work or leisure, the Philips 170V9 creates an enjoyable viewing experience tailored to the needs of its users.
Top Page Image Contents