Philips 275V8 User Manual

197.Customer care and warranty7. Customer care andwarranty7.1 Philips’ Flat Panel MonitorsPixel Defect PolicyPhilips strives to deliver the highestquality products. We use some of theindustry's most advanced manufacturingprocesses and practice stringent qualitycontrol. However, pixel or sub pixeldefects on the TFT Monitor panels usedin flat panel monitors are sometimesunavoidable. No manufacturer canguarantee that all panels will befree from pixel defects, but Philipsguarantees that any monitor with anunacceptable number of defects will berepaired or replaced under warranty.This notice explains the different typesof pixel defects and defines acceptabledefect levels for each type. In order toqualify for repair or replacement underwarranty, the number of pixel defectson a TFT Monitor panel must exceedthese acceptable levels. For example,no more than 0.0004% of the subpixels on a monitor may be defective.Furthermore, Philips sets even higherquality standards for certain types orcombinations of pixel defects that aremore noticeable than others. This policyis valid worldwide.Sub pixelspixelsPixels and Sub pixelsA pixel, or picture element, is composedof three sub pixels in the primary colorsof red, green and blue. Many pixelstogether form an image. When all subpixels of a pixel are lit, the three coloredsub pixels together appear as a singlewhite pixel. When all are dark, the threecolored sub pixels together appear as asingle black pixel. Other combinations oflit and dark sub pixels appear as singlepixels of other colors.Types of Pixel DefectsPixel and sub pixel defects appear on thescreen in different ways. There are twocategories of pixel defects and severaltypes of sub pixel defects within eachcategory.Bright Dot DefectsBright dot defects appear as pixels orsub pixels that are always lit or 'on'. Thatis, a bright dot is a sub-pixel that standsout on the screen when the monitordisplays a dark pattern. There are thetypes of bright dot defects.One lit red, green or blue sub pixel.