如何在阳光下看清液晶显示屏-
如何在阳光下看清液晶显示屏?
TechnologycolumnistWalterS.Mossberganswersreaders'questions.Q:Withsummercoming,Iwillbeoutsidealotbutstillneedtogetsomeworkdone.Istherealaptopthatyoucanreadindirectsunlight?A:Tomyknowledge,mostconsumerandbusinessmodelsuseLCDscreenswithbacklighting,whichmakesthemwashoutandhardertoreadindirectsunlight.Addingtotheproblem,mostlaptopscreenshaveaglossyfinishthesedays,whichproducesglareinstronglight.Butsomecompaniesstilloffermattescreensoncertainmodels.Youmightlookforoneofthose,thoughtheywon'tentirelysolvetheproblem.Anotheroptionisastick-on,anti-glareshield.And,ifyoudon'tmindextrabulkandsomeclumsiness,thereareevenhoodsyoucanbuytoshieldscreensfromthesunlight.Thereisanotherapproach:Some'rugged'laptopsmeantforoutdoorworkershavescreensdesignedtobelegibleinsunlight.Q:DoestheiPadhaveanydrawbacksasareadingdevicewhencomparedtotheKindle?DoesithaveaccesstoallthesamebookdownloadsasKindle?A:Yes.Itweighs1.5pounds--morethantwicewhatthesmaller,standardKindleweighs.Andevenitsimpressive11.5hourbatterylifeismuchlessthantheKindle'sbatterylife,whichisaweek,becauseofthatdevice'slow-powermonochromescreen.Also,Apple'siBooksstorehasmanyfewertitlesavailable
thanAmazon.com'sKindlestore.However,youdon'tnecessarilyhavetochoose.AmazonhasreleasedafreeKindleappfortheiPadthatallowsyoutobuyandreadAmazon'slargercatalogofe-booksontheAppledevice'sbigger,brighter,colorscreen.LikeotherKindlesoftware--forthePC,Mac,iPhoneandBlackBerry--thisnewiPadappobviatestheneedforKindlehardwaretoaccesstheAmazone-bookcollection.Q:IfyouhaveaniPhoneoriPad,whydoesApplerecommendyouuseiTunestobackupdatalikecalendar,contacts,bookmarksandappstoyourcomputer,wheniTunesisaplayerformusicandvideo?A:Yes,iTunesusedaloneismeanttoorganizeandplaymusicandvideos.ButApplehasalsobuiltintoittheabilitytomanagethebackingupandsynchronizingofothersortsofdatabetweenitsportabledevicesandthecomputer.It'salsothemethodbywhichusersupgradetheoperatingsystemsoniPhonesandiPadsandcanbeusedtobuyappsforthosedevicesandtransferthemover.
专栏作家莫博士就有关电脑和其他电子设备的常见技术问题答读者问。
问：夏天快到了，到时候我会有很多时间呆在户外，不过还是有工作要做。有没有一种在阳光直射下也能看清屏幕的笔记本电脑？
答：据我所知，大多数面向消费者和企业的电脑都使用了液晶背光显示器，这样一来，在阳光直接照射下就很难看清屏幕。更糟糕的是，如今大多数笔记本电脑的显示屏都使用
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