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电子墨水与纸
电子墨水与纸
ElectronicInkandPaper
Cambridge,Mass.-basedEInkCorp.isaleaderinthedevelopmentofelectronicinkand“paper”thatcouldreplacenewspapersandbooksasweknowthemtoday.
Theuseofelectronicinkandtwo-waywirelesscommunicationcouldleadtothecreationofelectronicbooksthatwillrenewthemselveswithnewselectionswhenreadersarefinishedwiththecurrentbook——ornewspapersthatupdatethemselveswiththelatestnewswhilebeingread.
Electronicink,asdevisedbyEInk,isaclear,liquidplasticinwhichtherearemicrocapsulesthatcontainwhitechipsinabluedye.Themicrocapsulesaresuspendedinasubstancesimilartovegetablecookingoil.Thewhitechipsarenegativelychargedsotheyreacttoelectricalstimulus.
Thisinkcanbespreadonanysurface——fromwallstocomputerscreens——saysRussellWilcox,vicepresidentandgeneralmanageratEInk.However,thewritingsurfacewouldlooksimilartoaverythinlaptopdisplayscreenwithaclearsurfaceonthefrontandcircuitryontheback.
Apositivechargeappliedonthetopsurfaceoftheinkwillallowthewhitetoshow,makingthesurfaceaswhiteasasheetofpaper.Ifthechargemovestothebottom,thedarkparticleswillshow,givingtheappearanceofblueink.ElectronicinkuseslesspowerthanaPalmPilot,andthemessageremainsdisplayedevenafterthepoweristurnedoff.
Theultimategoalisfortheelectronicpagestolookandfeellikepaper.However,fortheforeseeablefuture,thesenewbooksarelikelytobebulkierthanpaperbackbooks.
Electronicinkwillhaveinteractivequalities,althoughEInkisntsurepeoplewillbeabletowritewithitforawhile——theywillmainlyreceivemessages.XeroxCorp.isalsoworkingonatechnologythatcouldreplacepaperasportable,renewablereadingmatter.
TheXeroxtechnologyiscalledGyricon.Itscomposedofasiliconrubbercompoundwiththethicknessandflexililityofposterboard.TheGyriconsheetshavethousandsofplasticballssuspendedinoil.Eachballisblackononesideandwhiteontheotherandtogethertheyactaspixelstodisplayimages.Imagescanbeupdatedmuchthesamewayaswithamonitor.Thebeadsareembeddedinalargesheet,witheachmicrocapsulesuspendedinoiltoallowthebeadstorotateintheirorbits,saysRobertSprague,managerofthe
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