keyboard

Structure

Intheshell,somekeyboardsarefixedonthekeyboardpanelandthebasewiththetechnologyofplasticconcealedhooks,realizingametalscrew-freedesign,sobecarefultoavoiddamagewhendisassembling.

Inordertomeettheneedsofdifferentusers,conventionalkeyboardshavethreeindicators:CapsLock(lettercaselock),NumLock(numerickeypadlock),andScrollLock(scrolllockkey)(somewirelesskeyboardshaveomittedthisThreeindicatorlights),markingthecurrentstateofthekeyboard.Theseindicatorlightsaregenerallylocatedintheupperrightcornerofthekeyboard,butsomekeyboardsusebuilt-inindicatorlightsonthekeycaps.Thisdesignmakesiteasiertojudgethecurrentstateofthekeyboard,buttheprocessisrelativelycomplicated,somostordinarykeyboardsdonotusethisdesign.

Panelarea,Numnumericauxiliarykeyboardarea,Fkeyfunctionkeyboardarea,controlkeyarea,andshortcutkeyareaformultifunctionalkeyboard.

Thekeyboardcircuitboardisthecontrolcoreoftheentirekeyboard.Itislocatedinsidethekeyboardandismainlyusedforkeyscanningrecognition,encodingandtransmissioninterfacework.

Thereversesideofthekeycapisvisibleasthekeyplunger,whichisdirectlyrelatedtothelifeofthekeyboard,anditsfrictioncoefficientisdirectlyrelatedtothefeelofthekey.

Generally,therearefourtechnologiesforprintingkeycaps:a.Inkprintingtechnology,b.Laseretchingtechnology,c.Secondarymoldingtechnology,d.Sublimationprintingtechnology.

Classification

Ordinarytype

Theclassificationofgeneraldesktopkeyboardscanbeclassifiedaccordingtothenumberofkeystrokes,theworkingprincipleofthekeys,andtheappearanceofthekeyboard.

Therearemanytypesofkeyboards.Generally,theycanbedividedintothreetypes:contacttype,non-contacttype,andlasertype(laserlaserkeyboard).Theformerusesmetaltoconnectorbreaktwocontacts.Turnontheinputsignal,andthelattergeneratestheinputsignalbymeansofaHalleffectswitch(usingmagneticfieldchanges)andacapacitorswitch(usingcurrentandvoltagechanges).

Accordingtocodepoints

Fromthecodingfunction,thekeyboardcanbedividedintotwotypes:fullycodedkeyboardandnon-codedkeyboard.

Thefullcodedkeyboardisthehardwaretocompletethekeyboardrecognitionfunction,itbyidentifyingwhetherthekeyispressedandthepositionofthepressedkey,thefullcodingcircuitgeneratesacorrespondingcodeinformation(suchasASCIIcode).Thenon-codingkeyboardisthesoftwaretocompletethekeyboardrecognitionfunction,itusessimplehardwareandasetofspecialkeyboardcodingprogramtorecognizethepositionofthekey,andthentheCPUconvertsthepositioncodeintothecorrespondingcodeinformationthroughthetablelookupprogram.Thespeedofthenon-codingkeyboardislow,butthestructureissimple,andthesoftwarecanprovidegreatconveniencefortheredefinitionofsomekeys.

Dividedbyapplication

Accordingtotheapplication,itcanbedividedintodesktopkeyboard,laptopkeyboard,mobilephonekeyboard,industrialcomputerkeyboard,speedrecorderkeyboard,dualcontrolkeyboard,ultra-thinkeyboardsevenBigcategory.

Accordingtothenatureofthecodeelement

Accordingtothenatureofthecodeelement,itcanbedividedintotwocategories:alphabeticalkeyboardandnumerickeyboard.

Accordingtoworkingprinciple

Mechanicalkeyboard(3sheets)

1.Themechanicalkeyboard(Mechanical)usesasimilarmetalcontactswitch.Theworkingprincipleistomakethecontactsturnonoroff.Ithasthecharacteristicsofsimpletechnology,highnoise,easymaintenance,strongrhythmwhentyping,andwillnotchangethefeelafterlong-termuse.

2.Plasticmembranekeyboard(Membrane)keyboardisdividedintofourlayersintotal,realizingnomechanicalabrasion.Itscharacteristicsarelowprice,lownoiseandlowcost,butafterlong-termuse,thehandfeelwillchangeduetomaterialproblems.Hasoccupiedmostofthemarketshare.

3.Conductiverubberkeyboard(ConductiveRubber)contactstructureisconnectedbyconductiverubber.Thereisalayerofelectricallyconductiverubberbumpsinsidethekeyboard,andeachbuttoncorrespondstoabump.Whenpressed,thecontactsbelowareconnected.Thistypeofkeyboardisatransitionalproductfromamechanicalkeyboardtoamembranekeyboardinthemarket.

4.Capacitiveswithoutcontactuseaprinciplesimilartocapacitiveswitches.Changingthedistancebetweentheelectrodeswhenpressingthekeyscausesthecapacitancetochangetodrivetheencoder.Itischaracterizedbynowearandgoodsealing.

Thenumberofkeysonthekeyboardhasbeen83keys,87keys,93keys,96keys,101keys,102keys,104keys,107keysandsoon.The104-keykeyboardisbasedonthe101-keykeyboardandprovidesthreeshortcutkeysfortheWINDOWS9.Xpplatform(twoofthemarerepeated),soitisalsocalledtheWINDOWS9Xkeyboard.However,notmanyusersareaccustomedtousingWINDOWSkeysinpracticalapplications.The107-keykeyboardisakeyboardwiththreekeysaddedseparatelytofitJapaneseinput.Insomesystemsthatrequirealargenumberofsinglenumberstobeinput,thereisalsoasmallnumberentrykeyboard,whichbasicallyseparatesthesmallkeyboardofthestandardkeyboardtoachievethepurposeofreducingthesizeandreducingthecost.

Accordingtotextinput

Accordingtotextinput,thenumberofkeystrokesatthesametimecanbedividedintosingle-keyinputkeyboard,double-keyinputkeyboardandmulti-keyinputkeyboard.ThecommonlyusedkeyboardsbelongtoSingle-keyinputkeyboard,shorthandkeyboardisamulti-keyinputkeyboard,andthelatestfour-sectioninputmethodkeyboardisatwo-keyinputkeyboard.

benchmarkkey

keyboard(52sheets)

putthefingersofthelefthandonasdfrespectively,andputthefingersontherighthandonjkl;

Numerickeyboardreferencekeyindexfinger:741middlefinger:/852ringfinger:*963.Littlefinger:-+enter

Thethumbis0.

Accordingtotheregularpoints

Theregularkeyboardhastwokindsofmechanicalkeysandcapacitivekeys.Intheindustrialcomputerkeyboard,thereisalsoakeyboardthattouchesthemembranekeys.Themechanicalkeyboardisthefirststructuretobeadopted.Itisgenerallysimilartotheprincipleofacontactswitchtomakethecontactsturnonoroff.Ithasthecharacteristicsofsimpletechnology,convenientmaintenance,generalfeel,highnoise,andeasywear.MostofthecheapmechanicalkeyboardsThecopperspringisusedastheelasticmaterial,andthecopperiseasytofoldandloseitselasticity,andthefailurerateincreasesovertime.Capacitivekeyboard.Itisakeyboardbasedonacapacitiveswitch.Theprincipleistochangethedistancebetweentheelectrodesbypressingthekeystoproduceachangeincapacitance,temporarilyformingaconditionforallowingtheoscillatingpulsetopass.Theoretically,thiskindofswitchisnon-contactandnon-contact,thewearrateisverysmallorevennegligible,andthereisnohiddendangerofpoorcontact.Ithaslownoise,easytocontrolthefeel,andcanproducehigh-qualitykeyboards,buttheprocessismoremechanical.complexstructure.Thereisalsoakeyboardforindustrialcomputer,whichadoptslight-touchmembranekeysinordertobecompletelysealed,whichisonlysuitableforspecialoccasions.

Accordingtoappearancepoints

Theappearanceofthekeyboardisdividedintostandardkeyboardandergonomickeyboard.

ThekeyboardinterfacehasATinterface,PS/2interfaceandthelatestUSBinterface,desktopcomputersmostlyusePS/2interface,andmostmotherboardsprovidePS/2keyboardinterface.OldermotherboardsoftenprovideATinterfaces,whicharealsocalled"bigmouths",whicharenolongercommon.Asanewtypeofinterface,somecompaniesquicklyintroducedkeyboardswithUSBinterface.TheUSBinterfaceisjustasellingpointandhaslittleeffectonperformanceimprovement.UserswhoarewillingtotryandarenottootightonUSBportscanchoose.

Ergonomics

Theergonomickeyboardisastandardkeyboardthatseparatestheleft-handkeyareaandtheright-handkeyareastipulatedbyfingeringontheleftandright,andformsacertainangletomakeTheoperatordoesnotneedtoconsciouslyclamphisarmstomaintainamorenaturalform.ThekeyboardofthisdesignisnamedNaturalKeyboardbyMicrosoftCorporation.Foruserswhoareaccustomedtoblindtyping,itcaneffectivelyreducethemistakesoftheleftandrighthandkeys.Rates,suchastheletters"G"and"H".Someergonomickeyboardsalsointendtoincreasetheareaof​​commonlyusedkeyssuchasthespacebarandtheenterkey,andaddahandguardtothelowerpartofthekeyboardtoprovidesupportforthepreviouslysuspendedwristandreducefatiguecausedbylong-termsuspensionofthewrist.Thesecanallberegardedashumanizeddesigns.

Ergonomics,alsocalledergonomicsorergonomics,isanewdisciplinedevelopedaftertheSecondWorldWar.Ittakesthehuman-machinerelationshipastheresearchobject,andtakesactualmeasurement,statistics,andanalysisasthebasicresearchmethods.Specifictotheproduct,thatis,thedesignandmanufactureoftheproductarecompletelytailoredtothephysiologicalandanatomicalfunctionsofthehumanbody,whichismorebeneficialtothephysicalandmentalhealthofthehumanbody.Theergonomickeyboarddividestheordinarykeyboardintotwopartsandexpandsthematacertainangletoadapttotheangleofthehumanhand.Theinputpersondoesnotneedtobendthewrist,whichcanalsoeffectivelyreducewristfatigue.

Usingcomputersandtypewritersrequireskeyboardoperations.Staffengagedinkeyboardoperationsforalongtimeoftencausewrist,arm,andshoulderfatigue,whichaffectsworkandrest.Fromanergonomicpointofview,inordertoimproveworkefficiencyandlastingoperation,theoperatorshouldbeabletoadoptacomfortableandnaturalworkposture.Thestaffadoptsanabnormalpostureduetotheexistingkeyboardoperatingconditions,whichwillcausethebodyThemaincauseoffatigue.

Becausethekeyboardisoperatedontheworkbench,ifthestaff’swristisplacedontheworkbench,thekeyboard’skeysurfaceishigherthantheworkbench,thewristmustbetiltedup,whichwillcausewristpainovertime;Whiletheoperationofsuspendingthewristorelbowismoreflexible,butduetothelackofsupportofthehand,themusclesofthearmorshoulderhavetobekepttense,soitcannotlastforalongtimeandisalsopronetofatigue.Tothisproblem,theexistingresearchconclusionofergonomicsisthat"theheightofthekeyboardfromthetabletoptothemiddlerowofkeysshouldbeaslowaspossible."Ifthefrontedgeofthekeyboardisthickerthan50mm,thewristwillbeoverturned,whichwillincreasetheloadonthehand.Thisthicknessisbestkeptatabout30mm,andpalmrestcanbeaddedifnecessary.Thatis,itissolvedbyreducingthethicknessofthekeyboarditselfandaddingahandsupportinfrontofthekeyboard.Thedegreetowhichthekeyboardcanbethinnedislimited.

Theseparatedkeyboardcanmaketheuser'shandsandwristsmorerelaxed,inanaturalstate.Thiscanpreventandeffectivelyreducethestrainonthewristmuscles.Thekeysofthiskeyboardareatananglethatiscomfortablefortheuser.

Filmtype

Itconsistsofthreelayersofconductivefilm(theupperandlowerlayershavecircuits,andthemiddleisaninsulatinglayer).Thisisthekeytotriggeringthekeyboard,butthereareothertypesofconductivefilms.Someuserubbercaps,andsomeusemechanicalmodules.Rubbercapsaregenerallyavailableonthemarket.

Themembranekeyboardoccupiesmostofthemarketduetoitslowcost,simplecraftsmanshipandgoodfeel.Thekeyboardsweuseinourdailylifearebasicallymembranekeyboards.Thestructureofmembranekeyboardsisverysimple.Afterremovingthekeyboardupperandlowercoversandkeycapsthatwecandirectlytouch,wecanseethesiliconecaps,membranecircuitsandcircuitboardsunderthekeys.

Luminous

Luminouskeyboardismoreandmorepopular.Therearetwotypesofbacklitkeyboardsonthemarket.OnetypeusesLEDlight-emittingdiodesasbacklight,andtheothertypeuseselectro-opticalpanelsasbacklight.

ThefrontLEDbacklitkeyboardisdividedintomonochromeLEDluminouskeyboardandcolor-changingLEDluminouskeyboard.Comparedwithelectro-opticalkeyboard,LEDkeyboardisrelativelysimple,soitspriceisusuallycheaper.ThereisabigdifferenceinthebrightnessofeachLED,soitsbacklightuniformityisdifficulttoensure.Inaddition,anLEDkeyboardiscomposedofmanyLEDlight-emittingtubes,soitspowerconsumptionisrelativelylarge.

Therearerelativelyfewoptoelectronicboardluminouskeyboardsinthemarket,mainlybecauseitusesrelativelyexpensiveoptoelectronicboards,sohigh-endbacklitkeyboardsormilitaryluminouskeyboardsareproducedinthistype.Theadvantageisthatithasveryuniformbrightness,lowelectrodeconsumption,longlife,stablequality,andthephotoelectricpanelisonlyabout0.5mm,anditcanbefolded.Thesizeofthephotoelectricpanelcanalsobecutarbitrarily.Thedisadvantageisthatthepriceishighandthecolorcannotbechanged.

Development

ModernTrends

IftheCPUistheheartofthecomputer,andthemonitoristhefaceofthecomputer,thenthekeyboardisthemouthofthecomputer,anditrealizesthehumanSmoothcommunicationwiththecomputer.

Historyof"BigMouth"

ThekeyboardinthePCXT/ATeraisdominatedby83keys.Thisdesignhasgraduallybecomedisuse.

APreliminaryStudyof"LipShape"

Thekeyboardhasthreeindicatorlights,CapsLock(lettercaselock),NumLock(numerickeypadlock),andScrollLock.Thecurrentstateofthekeyboard.Theseindicatorsaregenerallylocatedintheupperrightcornerofthekeyboard.Somekeyboardshavebuilt-inindicatorlightsonthekeycaps,whichmakeiteasiertojudgethecurrentstateofthekeyboard.However,duetothecomplexityofthisdesign,mostkeyboardsdonotusethisdesign.

Nomatterhowthekeyformchanges,thebasickeyarrangementremainsthesame.Itcanbedividedintothemainkeyboardarea,thenumericauxiliarykeyboardarea,theFkeyfunctionkeyboardarea,thecontrolkeyboardarea,andtheshortcutkeyboardarea.

The"ThreePorts"Controversy

Keyboardscanbedividedintothreecategories:desktopkeyboards,laptopkeyboards,andindustrialcomputerkeyboards.

Thetraditionaldesktopkeyboardisstillthemainstreamonthemarket,butnomatterinappearanceortechnology,thereisnoessentialdifferencebetweenitandtheproductsofafewyearsago.Withtheimprovementofthequalityoflife,thethickdesktopkeyboard,thestylishandhealthyLCDmonitor,andthesmartandcomfortableopticalmousearebecomingmoreandmoreincompatible.Traditionaldesktopkeyboardsuseatrack-slidestructure.Althoughthekeystrokeshavealongerkeystrokeandthekeysfeelbetter,duetothedefectsofthestructureitself,thesoundislouderwheninputtingtext.

Therefore,manymanufacturershavecontinuedtotransformtraditionalkeyboards.Thethinnestpartoftheultra-thinkeyboardlaunchedinthesecondhalfof2006islessthan1cm,breakingthroughthethickandstiffoftheoldkeyboard,thelinesaremorenaturalandsmooth,thekeysareslightlyprotrudingandrichintexture,andthewholeappearanceisexquisiteandelegant,whichmakespeopleremember.Atthesametime,theemergenceofwaterproofkeyboardshasbroughtthedevelopmentofkeyboardstoahigherlevel.

Thekeyboardofthiskindofstructureofthenotebookcomputerkeyboardischaracterizedbylight,thin,compact,andstylish.TheuserchoosesthelaptopkeyboardtomatchtheLCDmonitor,whichwillmaketheentiredesktoplooksimpleandstylish.Intermsofuse,thekeyswillnottiltthekeycapduetouneventappingforceorthewrongtappingposition,andwillnotappeartobestuck;therequiredforceisrelativelysmall,andtheuserwillnotfeelfatiguedeasilyforlong-terminput;thekeystrokeisveryshort,Thefeelfeedbackwhentappingisfarlessthanthatofadesktopkeyboard.Intermsofmute,theuser'svoicewhentypingtextismuchsmallerthanthatofadesktopkeyboard.

"Wordofmouth"

Designforuserneeds:

Thekeyboarddevelopmenttrendismoreandmoreinlinewithprofessionalism,Andaccordingtothedifferentpurposesengagedin,theperformanceofthekeyboardisalsodifferent.Forexample,keyboardsforgameplayers,withdisplayscreensormanyshortcutkeys;keyboardsforuserswhofrequentlyusekeyboards,witheasy-to-washfeatures;keyboardsthatcanemitlight,separatekeyboards,andsoon.

Designforsoftwarefunctions:

Somekeyboardsdesignedforgamesoftware,comparedwithotherkeyboardsthatcanpress2~4keysatthesametime,theycanpressupto7keysatthesametime.Threekeys,W/E/D3commonlyusedkeyscanbeusedatthesametime,sotheproblemofkeyconflictsissolved,anditismoreconvenientforplayerstoissueactioncommandsduringthegame.

Thekeyboardwithmultimediafunctionkeysallowscomputeruserstoquicklyusethekeyboardtooperate,insteadofonlyusingthemousetoclickontheiconsonthescreen.SimilardesignsincludeCD-ROMbutton,Internetbutton,E-mailbutton,andvoiceadjustmentbutton.Somekeyboardshaveanapproximatelycircularadjustmentdial,whichcanreplacethefunctionofamouse.

Theapplicationofwirelesstechnologymakestheuseofthekeyboardgetridofthedistancelimitationofthekeyboardcable.Therearemainlywirelessbluetoothkeyboardsandwirelessinfraredkeyboards.Thetwoaredifferentintransmissiondistanceandanti-interference.Generallyspeaking,Bluetoothissuperiortoinfraredintermsoftransmissiondistanceandsecurity.Theeffectivedistanceofinfraredtransmissionisabout1to2meters,whiletheeffectivedistanceofBluetoothisabout10meters.Itisnotonlytosolvetheproblemofcomputerperipheralequipment,butalsotopavethewayforthedevelopmentofcomputermulti-functionalentertainmentinthefuture.

Historicalreview

Since1714,peopleinBritain,theUnitedStates,France,Italy,Switzerlandandothercountrieshaveinventedvarioustypesoftypewriters,butthetechnologyisnotyetmature.Theearliestkeyboardusedontypewriterswasalsoinvented.Until1868,the"fatheroftypewriters"-AmericanChristopherLathamSholes(ChristopherLathamSholes)obtainedthetypewritermodelpatentandobtainedtherighttooperateit.Afewyearslater,hedesignedthepracticaluseofmoderntypewriters.Theformandthefirststandardizedkeyboard,namelyQWERTYkeyboard.

Whyshouldthekeyboardbestandardizedintoa"QWERTY"keyarrangementlayout.Thisisbecause,atfirst,thekeyboardofatypewriterisarrangedinalphabeticalorder,andthetypewriterisatypingtoolwithafullymechanicalstructure.Ifthetypingspeedistoofast,somekeycombinationsarepronetokeystuckproblems.SoChristopherLathamSholes(ChristopherLathamSholes)inventedtheQWERTYkeyboard.Heplacedthemostcommonlyusedlettersinoppositedirectionstomaximizethetimeintervalbetweenrepeatedkeystrokes,thusavoidingstuckkey.Shoalsappliedforapatentin1868,andin1873thefirstcommercialtypewriterusingthislayoutwassuccessfullyputonthemarket.

ThekeylayoutoftheQWERTYkeyboardisveryinefficient.Forexample:Mosttypistsareright-handed,butusingtheQWERTYkeyboard,thelefthandisresponsiblefor57%ofthework.Thetwolittlefingersandtheleftringfingeraretheweakestfingers,buttheyarefrequentlyused.Theuserateofthelettersinthemiddlecolumnonlyaccountsforabout30%oftheentiretypingwork.Therefore,youoftenhavetomoveyourfingersfrequentlyinordertotypeacharacter.

In1888,apublictypingcompetitionwasheldintheUnitedStates.ThecourtstenographerMaJialinshowedhisblindtypingskillsaccordingtoacleardivisionoflabor.Theerrorwasonlythreeoutoftenthousand,whichsurprisedtheaudience.Accordingtotherecord,MaJialinGalin'sbonuswas500USdollars.Sincethen,manypeoplehavefollowedthistypeoftouchtyping,andtherehavebeenschoolsspecializingintrainingtypistsintheUnitedStates.

Duetotheemergenceoftouchtypingtechnology,thekeystrokespeedissufficienttomeettheneedsofdailywork.However,60yearslater(1934),amannamedDvorak(DVORAK)inWashington,USAHitmorewordsalternatelyandinventedthekeyboardarrangementmethodoftheDVORAKkeylayout.Thiskeyboardcanshortenthetrainingcycleby1/2timeandincreasetheaveragespeedby35%.ThekeyboardlayoutprinciplesofDVORAKkeypositionlayoutare:1.Trytostrikealternatelywithleftandrighthandstoavoidsingle-handedcontinuousstrikes;2.Theaveragemovementdistanceofkeystrokesintherowisthesmallest;3.Themostcommonlyusedlettersshouldbearrangedintheguidekeyposition.

Bythemiddleofthe20thcentury,thekeyboardhasanotherplacetobeused-asthebasicinputdeviceofthecomputer.However,comparedtotheDVORAKkeyboardlayout,theQWERTYkeyboardisstillthemostusedkeylayoutmethod.Thisisaverytypicalexampleof"inferiorproductsdefeatingsuperiorproducts".

Analysisofthein-depthreasonsforthefailureoftwokeyboardinnovationsinhistory:

Fromourcommonsense,inferiorproductswilleventuallybereplacedbysuperiorproducts.Manypeoplehaveanalyzedthisnegativephenomenon.Forvariousreasons,habitualpowerandpipelinedependencearethemostpopularterms.However,wecananalyzethesituationatthetimeandfindoutdeeperreasons.

1.Thelimiteddemandforcomputersinthemarketisoneoftheimportantreasons.

Atthattime,thedemandforcomputerswasverylimited.Fewpeoplewerewillingtochangewhatwasformedatthetime,especiallyinlargecompanies.Weknowthatwhendemandislimited,anyenterprisehaslittlemotivationtoinnovate,andthefocusisonwhetherthereisornot,notwhethertheperformanceisthebest.

2.Thecostofkeyboardinnovationisrelativelyhigh.

Thecodedkeyboardwasusedatthetime,andtheamountofsoftwareandhardwarechangeswerelarge.high.

Theabovetworeasonsarethemainreasonsforthelackofmotivationforenterprisestoacceptandpromote.Thefollowinganalysisofthedemandsidereasons.

3.Limiteduse

Duetotheextremelylimitednumberofcomputerapplicationsandfilesatthattime,thekeyboardwasmainlyusedforworkratherthanonlinechat.Atthesametime,themaincomputerownerisnotanindividualbutacompany.Improvingtypingefficiencyisnotnecessarilyrelatedtoimprovingcompanyefficiency.Therefore,companiesthatrequirecomputerswillnotreplacekeyboardsorcomputersjustbecauseofimprovedkeyboardinputefficiency.

Atthesametime,aslongasyouareproficientintouchtypingtechnology,theefficiencyhasbeengreatlyimproved,anditisnotnecessarytochangethekeyboardtoimprovetypingefficiency.

4.Speed​​improvementhaslimitationsinsufficient.

Assumingthatthekeyboardinnovationtookplaceinthemid-20thcentury,thereisgreathopeforsuccess.

Thereasonsareasfollows:

1.Thereisenoughmarket

Computershaveenteredthousandsofhouseholds,themarketspaceishuge,competitionisfierce,performancehasbecomethemainsellingpoint,usershavedifferentideas,andsufficientmarketspaceisprovidedforthelaunchandsuccessofnewkeyboards.Therewillbeoverwhelmingpublicityforperformanceadvantages.

2.IntheInternetage,thespeedimprovementhasasignificanteffect

Whethercompaniesorindividualshavehigherrequirementsforinputspeed,companieswillbehappytoacceptkeyboardswithhigherinputefficiency,andindividualswillalsobehappytousemoreefficienttools.

3.Thecostofinnovationislow.

Thekeyboardisinanon-encodedform,andyouonlyneedtoremarkthepositionofthelettersonthesoftware,whichismucheasierthanatthetime.

It’sjustthatiftheworld’skeyboardsarechangedtoDVORAKkeylayoutkeyboards,thereisnorelevanttextualresearchontheimpactofkeyboardinputinChinese.

Thinkingaboutthefuture

Isthereadaywhenthekeyboardwillbeeliminated?

Beforeansweringthisquestion,let’sfirstanalyzethekeyboardfunctionandthereplacementprogressofthekeyboardfunction.

Firstofall,thebasicfunctionofthekeyboardistoinputinformationandinstructionsthroughone-handedortwo-handedkeystrokes.Thekeyboardisnothingmorethananinputdevice.Wecansaywithcertaintythatthekeyboardisaconvenient,quickandpracticalmanualinputdevice.Inthissense,thekeyboardisdifficulttobeeliminatedinthefieldofcomputerinputdevices.Thekeyboardisthemostimportantinputdeviceamongthecurrentcomputerinputdevices.Withtheadvancementoftechnology,itmayhappenthatthekeyboardmayloseitsstatusasthemaininputdeviceofthecomputerinthefuture.

Fromtheperspectiveofprogress,severalnon-keyboardinputmethodshaveemerged,suchasvoice-activatedinput,handwritinginput,andtouchorclickinput.Moreadvancedbrainwaverecognitionandinputtechnologiesarebeingdevelopedabroad.Therefore,togivepeopleakindofthinkingandjudgmentthatconformstothelawofdevelopment,oneday,keyboardinputdeviceswillbeeliminatedbymoreadvancedinputdevices.Infact,thisprospectisquestionable.

Asaconvenientmanualinputdevice,unlesshumansdecidetoabolishtheflexibilityofthehandsthathumansrelyonfordevelopmentandsurvivalandgivewaytoasmarterbrain,thisissimplyincredible.TheexistenceofakeyboardisonlyCanmakethehandsmoreflexibleandthebrainmoredeveloped.Mostlikely,onthebasisofretainingthekeyboard,integrateotherinputmethodstobetterservethecomputer.

Whethertherewillbeamorecompactkeyboardtoreplacetheexistingkeyboard.

Thisquestioninvolvesthedevelopmentdirectionofthekeyboard,whichisinevitableintermsofdevelopmentlogic.Thestatusoftheexistingkeyboardisbecausetheexistingkeyboardisadaptedtotheuseofdesktopcomputers.Thepopularizationanddevelopmentofdesktopcomputershaveconsolidatedtheuniquestatusoftheexistingkeyboards,buttheexistingkeyboardsarenotsuitablefornotebookcomputersthatareinfullswing.Inthefuture,studentsandwhite-collarworkerswillItisthelargestusergroupofnotebookcomputers.Portabilityandversatilitywillbethefinaldeterminants.Toachievetheportabilityofthekeyboard,theexistingQWERTYkeyboardlayoutbecomesagreatobstacle.Tosolvethiscontradiction,thekeyboardlayoutchangesBecominginevitable,thisisalsothereasonfortheemergenceofavarietyofnewlayouts.

TheobjectivereasonwhythewidelyusedlaptopkeyboardssuccumbtotheQWERTYlayoutistoachievebasiccommonalitywiththedesktopkeyboard,buttheQWERTYlayoutalsobringsgreatpassivenesstothelaptopkeyboard,andthesizeisdifficulttoreduce,Theportabilityofthekeyboardisbasedonthecostofinconvenience.Conversely,ifthenewlayoutisadopted,theversatilitywillbecompletelylost,andtheinconveniencewillbemoreobvious.Ifanewlayoutmustbechanged,versatilitywillbeaninsurmountableobstacle.Thegoodnewsisthatthisdilemmahasbeenbasicallyresolved.

Thereplacementoftheexistingkeyboardbythenewlayoutkeyboardshouldbeoperatedinaccordancewiththeruleofreplacement.Theinitialstagemustbethecoexistenceofthetwolayouts.Theadvantagesofthenewkeyboardwillattracttheinitialusers,graduallyexpandthescopeofinfluence,anddriveintentionalchangesinusagehabits.Ofpeopleusethenewlayout,whichrequiresthenewlayouttobeeasytolearnanduse.Onethingtonoteinthecoexistencephaseisthatitisveryimportantnottoaffecttheuseoftheoriginalusers.Thisisequalchoice.Theproblemmainlyoccursonthedesktopcomputerkeyboard.

Purchaseitems

1.Thetouchofthekeyboard

Astheinputdevicewiththemostdailycontact,thetouchisundoubtedlythemostimportant.Thefeelismainlydeterminedbythestrengthofthekeysandthedegreeofresistancetothekeys.Tojudgethefeelofakeyboard,itwillbetestedfromtheaspectsofwhetherthebuttonelasticityismoderate,whetherthebuttonforceiseven,whetherthekeycapislooseorshaking,andwhetherthekeystrokeissuitable.Althoughdifferentusershavedifferentrequirementsfortheelasticityandkeystrokeofthekeys,ahigh-qualitykeyboardshouldbeabletomeetthehabitsofmostusersintheseaspects,andthekeysareevenlystressedandthekeycapsarefirm.Guaranteed,otherwiseitmaycausekeystuckormakeusersfeelfatigued.

2.Theappearanceofthekeyboard

Theappearanceincludesthecolorandshapeofthekeyboard.Abeautifulandstylishkeyboardwilladdalotofcolortoyourdesktop,whileanold-fashionedkeyboardwillmakeyourworkmoreboring.Therefore,forthekeyboard,aslongasyoufeelbeautiful,like,anduseful.

3.Theworkmanshipofthekeyboard

Thecostofthekeyboardislower,butitdoesnotmeanthatitcanbehandledcarelessly.Thesurfaceandedgesandcornersofthekeyboardareexquisitelyprocessed.Thelettersandsymbolsonthekeycapsareusuallyengravedbylaser,whichgivesabumpyfeeltothetouch.Whenpurchasing,carefullycheckwhetherthehandwritingprintedonthekeysisengraved,notthat.Thisisprinteddirectlywithink,becausethehandwritingonthiskeyboardwillfalloffsoonafteryouuseit.Thecornersofthekeyboardshouldnotbesharp.TheconventionalkeyboardhasCapsLock(lettercaselock),NumLock(numericalkeypadlock),andScrollLockthreeindicatorlightstobeon.

4.Keyboardkeylayout

Althoughthereisastandardforthekeyboardkeydistribution,eachmanufacturerstillhasroomformaneuveronthisstandard.Experiencedmanufacturerscanusehisexperiencetoarrangethekeyboardkeystobemoreconsideratetousers.Smallmanufacturerscanonlyfollowthemostbasicstandards,andevenmakekeyboardswithextremelypoorkeydistributionduetopoorquality.

5.Keyboardnoise

Ibelievethatallusershatethenoisegeneratedbytypingonthekeyboard,especiallythoseuserswhoarestillworking,gaming,orsurfingtheInternetlateatnight.Therefore,agoodkeyboardmustensurethatthekeyboardistypedathighspeed.Onlyasmallnoiseisproducedwhenhitting,anditdoesnotaffectotherpeople'srest.

6.Keyboardkeyconflictproblem

Inourdailylife,weplaysomegamesmoreorless.Whenplayinggames,therewillbecontinuoususeofcertainkeycombinations,sothisrequiresthesekeyboardstohaveThesegamekeysdonotconflict.

7.Thelength,widthandheightofthekeyboard.(Mustreadifthereisacomputerdesk)

Whenwebuyakeyboard,measurethelength,width,andheightofthecomputerkeyboardonthecomputerdeskbeforebuying.

Type

Membranekeyboard,mechanicalkeyboard,electrostaticcapacitivekeyboard

Originofthearrangement

ThekeyboardlettersarearrangedaccordingtothefrequencyofletteruseTheorderofthehighandlow.Interestingreadersmaywonder:Whydoyouwanttoarrangethe26lettersinsuchanirregulararrangement?Itisdifficulttorememberanddifficulttomaster.Itissaidthatthereasonisthis:

Inthe1870s,Shoalswasthelargestmanufactureroftypewritersatthetime.Becausethemechanicaltechnologywasnotperfectatthattime,thereboundspeedofthewordkeysafterbeinghitwasslow.Oncethetypisthitsthekeystoofast,itiseasytotwistthetwowordkeystogether.Youmustcarefullyhandlethekeyswithyourhands.Theyareseparated,whichseriouslyaffectsthetypingspeed.Therefore,thecompanyoftenreceivescomplaintsfromcustomers.

Inordertosolvethisproblem,acleverengineersuggested:Thereasonforthetwistingofthetypewriter'skeysisthatontheonehand,thereturnspeedofthewordkeysisslow,andontheotherhand,thespeedofthetypististoofast.Sincewecan'tincreasethereboundspeed,whydon'twewanttoreducethetypingspeed?

Therearemanywaystoreducethespeedofatypist.Theeasiestwayistodisrupttheorderofthe26lettersandplacethemorecommonlyusedlettersunderclumsyfingers,suchastheletters"O",""S"and"A"arefrequentlyused,buttheyareusedtohitthemostawkwardrightringfinger,leftringfingerandleftlittlefinger.Thelessfrequentlyused"V","J","U"andotherlettersarehandledbythemostflexibleindexfinger.

Asaresult,this"QWERTY"combinationkeyboardwasbornandgraduallyfinalized.Later,duetothedevelopmentofmaterialsandtechnology,thereboundspeedofthewordkeyswasmuchfasterthanthespeedofthetypist'skeystrokes,butthealphabeticalorderofthekeyboardcouldnotbechanged.Althoughtherearemanymorereasonablealphabeticaldesignschemes,noneofthemcanbepromoted.Wecanseehowpowerfulthehabitualforcesofsocietyare.

Theuniversal101-keyor102-keykeyboardisnamedaccordingtothearrangementofEnglishlettersandiscalledQWERTYkeyboard.Undoubtedly,itis"born"fromanEnglishtypewriter.BillGatesusedthiskeyboardtoillustratewhatiscalleda"defacto"standard:"TheorderoflettersonEnglishtypewritersandcomputerkeyboardsisQWERTY,andthereisnolawthatsaystheymustbearrangedinthisway.Buttheyareeffective.Mostuserswillsticktothisstandard.”Interestingly,thisarrangementisnotareasonablelayout.

TheinventoroftheQWERTYkeyboardiscalledChristopherSholes(C.Sholes),wholivedduringtheAmericanCivilWarinthe19thcenturyandwastheeditorofthe"MilwaukeeNews".WiththeassistanceofhisfriendSaul,Shoalsdevelopedapagenumberingmachineandobtainedaninventionpatent.ThenewspapercolleagueGliddensuggestedthathefurtherdevelopatypewriteronthisbasisandbroughthimtestmaterialsfromtheBritish.

AfterdevotingyearsofhardworktoShoalsandthetwopartners,in1860,theymadeaprototypeofatypewriter.However,Shoalsfoundtohisdisappointmentthataslongashistypingspeedwasslightlyfaster,hismachinewouldnotworkproperly.Accordingtoconvention,Shoalsarrangesthe26EnglishlettersonthekeyboardintheorderofABCDEF.Inordertomakethetypedcharactersonebyone,thekeysshouldnotbetoofarapart.Inthiscase,aslongasthefingermovesslightlyfaster,themetalrodsconnectingthekeyswillinterferewitheachother.Inordertoovercometheinterferencephenomenon,Shoalsrearrangedthepositionoftheletterkeys,arrangedthespacingoffrequentlyusedlettersasfaraspossible,andlengthenedtheprocessoffingermovement.

Theabnormalthinkingmethodhasachievedsuccess.Shoalsexcitedlytypedalineofletters:"Thefirstblessing,dedicatedtoallmen,especially,dedicatedtoallladies."Shoalsdedicatedhisinventiontowomen"specially".HewantedtodoTheycreatedanewprofessionneverseenbefore—"typist".OnJune23,1868,theU.S.PatentOfficeofficiallyacceptedthetypewriterinventionpatentjointlyregisteredbyShoals,Glidden,andThor.

Judgingfromtheeyesatthismoment,thekeyboardletterarrangementmethodinventedbyShoalshastoomanyshortcomings.Forexample,8ofthe10mostcommonlyusedlettersinEnglisharetoofarawayfromtheprescribedfingerposition,whichisnotconducivetoimprovingtypingspeed;inaddition,thelettersonthekeyboardthatneedtobetypedwiththelefthandaretoomuch,becausemostpeopleareright-handed"Zi",soitcanbeuseddifferently.Someonehasmadestatistics.UsingtheQWERTYkeyboard,askilledtypistcanmovehisfingersaslongas25.7kilometersin8hours.However,theQWERTYkeyboardisstillthe"defacto"standardforcomputerkeyboards.Althoughin1932,theUniversityofWashingtonprofessorA.DVORAKdesignedakeyboardwithamorescientificDVORAKkeylayout,butithasneverbeenpopularized.

Windowshasbuilt-insupportforit,open"ControlPanel→Keyboard",enterthe"InputMethodRegionalSettings"tab,andthenclickthe"Add"buttontosetthe"InputMethodRegionalSettings"Setitto"English(UnitedStates)"andfind"USEnglish-DVORAK"inthe"KeyboardLayout/InputMethod"column.Afterconfirmation,thepositionofthebuttonshasallchanged.YouhavetheresourcestoimproveyourEnglishtypingspeed.Ofcourse,ittakestimetore-adapttothenewsystemandtotrainpatientlybeforesuccess.

Manufacturingprocess

First,laseretching

Theso-calledlaseretchingistheuseoflaserengravingtechnologytoburnblackonthekeycapThegrooveisnothingmorethan.Becausethetracescarvedbyitarelinear,thearrowsonthecommonlaseretchedkeyboardsareallhollow.

Butlaseretchingalsohasseveralfatalflaws,whichalsodeterminesthatitcannotbeusedintheproductionofhigh-endkeyboards.Firstofall,becauselaseretchingbelongstoetching,andnoinkisused,onlyasingleblackfontcanbeprinted,sothemulti-coloroverprintdesignoftenfoundonhigh-endkeyboardscannotbeachieved;secondly,high-endkeyboardsareoutofdesignandFordurability,non-standardstructureproductssuchasergonomicsaredifficulttoprintonordinarylaseretchingmachines.Becauseofthis,laseretchingisonlyusedintheproductionlinesoflargefactoriestotakeadvantageofitsfastproductionspeedandlowcost.Ontheproductionlinesofhigh-endproducts,becauseofthehigherprintingqualityTherefore,wecanonlycontinuetousethetraditionalhigh-costinkprintingmethod.

Second,padprintingmethod

Padprintingmethodisaveryoldmethodofprintingkeycaps,becauseitisnotverypracticalandinefficient.Itisnolongerused.Thepadprintingmethodistouseagroupoflettertypeastheoriginaltype,aftertheinkispaintedonitbyanautomaticmachine,agroupofsoftrubberblocksarepressedonit,sothatwhentherubberblockislifted,theinkwillbetransferredtothehandwriting.Ontherubberblock,andthenmovetherubberblocktotheblankkeyboard,presstherubberblock,theinkisprintedonthekeyboard.

3.Screenprinting(acommonmethodininkprinting)

TheprincipleistocovertheblankkeyboardwithaspecialscreenOntheupperpart,wherethehandwritingishollowedout,thentheinkisscrapedfromthetop,sothatthehandwritingwillbeprintedonthehollowedoutpart.Thefeatureofscreenprintingisthatyoucanuseaspecialscreentobrushalayerofplasticafterprintingthehandwriting.Afteritdries,aplasticprotectivefilmcoveringtheprintedhandwritingwillbeformed,whichcanpreventlong-termuseofthehandwriting.Wearandtear,whichiscommonlyreferredtoaskeyboardoverlaytechnology.TheEnglishtechnicaltermforthisplasticis:CoatingComparedwithlaseretching,screenprintingcanfreelyprintavarietyofcolorsthroughrepeatedoverprintingofmultiplescreens,andthereisnorequirementforkeyboardmaterial.However,duetothelimitationofitsprintingmethod,itisstillnotpossibletoprintakeyboardwithanoverlycomplexshape.

Four,impregnationprinting(alsocalledsublimationmethod)

Impregnationprintingisaprintingmethodthatiscompletelydifferentfromordinaryinkprinting.ItusesItisnotacommonliquidpigmentink,butasolidresinink.Thiskindofinkwillsublimeintoagaseousstateathightemperature,penetrateintothesurfaceofthepermeableprintedmatterintheformofgaseousmolecules,andthensublime,therebybecomingaphysicalentitywiththeprintingsurface,ratherthanjustbeing"sticky"likeordinarypigmentinks.Ontheprintingsurface,soitsprintingfirmnessisextremelyhigh.Moreover,resininksareinherentlysuperioringlossandshape.

Five.LaserFillingMethod

Theprincipleoflaserfillingmethodisabitsimilarto"tattoo".Tattooingusesneedlestomakefinelinesontheskin.,Andthenfillitwithpaint,sothatthecolorwillpenetrateintothelinesoftheskin,andwillnotbewashedofforrubbedoffbywaterinthefuture.Thesameistrueforlaserfillertechnology.First,uselaseretchingtechnologytoprintthetext(butlighterthanusuallaseretchingtoensureasmoothsurface),andthenuseinkprintingforsecondaryprinting,sothatthecuredinkwillbeInfiltratethenicksleftbythelaserandstayinit,andthenitwillnotbeeasilypolishedaway.Thekeyboardprintedwithlaserfillertechnology,becauseofthesecondaryprintingoftheink,compensatesforthedefectsofpoorlaseretchingfontsandinabilitytoprintcolors,andbecauseofthelasermarkingsasthebasis,itsfirmnessismuchhigher.Forpureinkprinting.Ipersonallythinkthatthiskeycapprocessingmethodisacombinationoflaseretchingandinkprinting.

Six.Hollowprintingmethod

Firstofall,letmeexplainthatthismethodisalmostallprintedinthiswayonthekeyboardofthemobilephone.AndonlysomelaptopkeyboardsofAPPLEhaveusedthisprintingmethod.Thisprintingmethodisverysimpletosay,infact,themainpurposeofApplecomputersusingthisprintingmethodisnotforfirmhandwriting,butforaesthetics.Becausethishollowedoutfontis"engraved",itisclearerandbrighterthanink-printed,andlikeamobilephonekeyboard,abacklightcircuitcanbeinstalledunderthehollowed-outtextkeys,makingthenotebookkeyboardasuniqueasamobilephonekeyboard.Goodbacklighteffect.

Seven,two-colormolding

Two-colormoldingistheuseofmoldstocombinetwodifferentcolorsofplastictogether,usingthedifferencebetweenthecolorsofthetwoplasticsTodisplaythefont.Theadvantageoftwo-colormoldingisthatthefontcolorisbright,thedurabilityishigh,andthewordisnoteasytobedropped.Ifthemanufacturingtechnologyisgood,thetactileperformanceofthekeycapwillbeverygood.Thedisadvantageisthatitisdifficulttoexpressfinertext,thecolortypeismonotonous,thestrokecomplexityislow,andthefixedcostofitsmanufactureisexpensive.

8.Lasercarving

Thelasercarvingprocesshasthecharacteristicsofneverfadingandclearlines.

Maintenanceanddisinfection

Maintenance

1."ComputerCannotsearchwhenbootingKeyboard"faultrepair

Therearemanyfactorsthatcausethekeyboardnottobesearchedafterbooting,suchasweakconnection,damagedkeyboardinterface,lineproblem,motherboarddamage,etc.,butthemainproblemisalmostintheconnection(Theprobabilityisaround60%).Forthiskindoffailure,itisusuallynecessarytoshutdownthemachinefirst,thenunplugthekeyboardconnector,andthenforcefullyplugitintothekeyboardinterfaceonthemotherboard.

2."Keyboardkeyfailure"troubleshooting

Thekeyboardkeyfails.Thisphenomenonisusuallycausedbydirtonthecircuitboardorconductiveplastic.Thusmakingitimpossibletoconnectbetweenthetwo.Otherfactorsarealsopossible,suchas:keyboardplugdamage,wiringproblems,motherboarddamage,CPUmalfunction,etc.,butitisnotthemainreason.Therefore,onlydescalingworkisrequired.

Theoperationstepsareasfollows(notethatthescissorkeyboardismainlyusedfornotebooksasultrabookkeyboards.Whenthekeyboardismodularizedforpersonalmaintenance,donotdisassembleitoryoucannotinstallitback):

1.Disassemblethekeyboard.Notethatwhenopeningthekeyboard,thebuttonsurface(thatis,thesidewhereweoperate)mustbedownwardandthecircuitboardupward,otherwisetheconductiveplasticoneachbuttonwillfalloffoneafteranother,whichwillcausetroubleforyourrepair.

2.Openthecircuitboard,thecircuitboardisgenerallymadeofsoftplasticfilm,withbuttoncablesengravedonit.Usealcoholcottonwithaconcentrationofmorethan97%ormedicalalcoholcottonwithaconcentrationofmorethan75%togentlyscrubthecircuitboard..Wipethelineofthepartofthebuttonfailureseveraltimes.

3.Checktheconductiveplasticonthemalfunctioningpartofthebutton.Ifthereisalotofdirtontheupperarea,wipeitwithalcoholaswell.Assumingthattheconductiveplasticisdamaged,itisrecommendedtoreplacetheconductiveplasticontheinfrequentlyusedbuttonswiththedamagedpart.Althoughthisactioncannotmakethekeyboardperformallthefunctions,itcanatleastextendthelifeofthefrequentlyusedbuttons.

4.Toremovedirtintheinnercornersofthekeyboard,youcanusebrushes,smallbrushes,etc.astools,butbecarefultoactsoftly.

5.Checkthesolderingmoduleforfalsesolderingordesoldering.Ifyouknowhowtouseanelectricsolderingiron,youcanrepairsoldering.Ofcourse,thisstepisonlysuitableforfriendswhoknowhowtouseelectricsolderingirons.Forthosewhodonotknowhowtouseit,pleaseskipthisstep.

6.Afterinstallingthekeyboard,thereisonethingtonote,thatis,youmustwaitforthealcoholtoevaporatebeforeproceeding.

Disinfection

1.Tapthekeyboard.Turnoffthecomputerandremovethekeyboardfromthehost.Putanewspaperonthetable,turnthekeyboardupsidedown,about10cmawayfromthetable,tapandshake.

2.Blowoffdebris.Useahairdryertoaimatthegapsonthekeyboardkeystoblowoffthedebrisattachedtothem,andthenturnthekeyboarddownagainandshakeandpat.

3.Scrubthesurface.Dipasoftclothwithdiluteddetergent(notethatthesoftclothisnottoodamp),andscrubthesurfaceofthekeys.Thenvacuumthekeyboardagain.

4.disinfect.Afterthekeyboardiscleaned,youmightaswelldipitinalcohol,disinfectantormedicinalhydrogenperoxidefordisinfection,andfinallywipethesurfaceofthekeyboardwithadrycloth.

5.Washthoroughly.Ifyouwanttocleanthekeyboardthoroughly,youhavetoremovethecapofeachkey.Thekeycapsofordinarykeyboardsaredetachable,andyoucanprythemoffwithasmallscrewdriverorearpick.Largerbuttoncapssuchasthespacebarandenterkeyaremoredifficulttoreturntotheiroriginalpositions,sotrynottoremovethem.Itisbesttousethecameratotakeapictureofthekeyboardlayoutordrawasketch.Afterremovingthebuttoncap,youcansoakitindetergentordisinfectantsolution,andcarefullyscrubthekeyboardbasewithaflannelordisinfectantpapertowel.