2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、ThedevelopmentapplicationofLEDAsthefurtherdevelopmentofdisplaydevicetechnologyscreendisplaysystemhasbeenwidelyusedinnationaleconomyLEDdisplayasacarrierfdisplayinginfmationisoneofmajmedia.LEDdisplayiscomposedbyusingLEDlat

2、ticemodulepixelunit.AscomputertechnologydevelopedLEDdigitalhastheacteristicsofhighreliabilitylonglifehighcostperfmancelowusingcoststronglyadaptivecapacitytoenvironmentwhichcanbedirectlydrivenwithoutreducingdrivetherefeit

3、hasbeenplayingaimptanceroleinthefieldofflatdisplay.falongperiodoftimethereareconsiderableroomfdevelopment.Soitwidelyusedinthefinancialmarketshospitalsstadiumsairptsterminalsstationshighwaysotherpublicplacesfinfmationdisp

4、layadvertising.FirstLEDSummaryLED(LightEmittingDiode)lightemittingdiodeisasolidstatesemiconductdeviceswhichcanbedirectlyconvertedintoelectricitytolight.LEDistheheartofasemiconductchipthechipisattachedtooneendofastentisth

5、enegativesidetheotherendofthepowerofthecathodetheentirechippackagetobeepoxyresin.SemiconductchipiscomposedoftwopartspartofthePtypesemiconductitinsidetheholedominatedtheothersideistheNtypesemiconducthereismainlyelectronic

6、.Butlinkingthetwosemiconductsamongthemthefmationofa“PNjunction.“WhenthecurrentthroughthewiresroleinthischipwillbepushingePPzoneintheholewithelectroniccompositethentobeissuedinthefmofphotonenergythisistheprincipleofLEDlum

7、inescence.ThewavelengthoflightthatisthecoloflightisfmedbythePNjunctionofthedecisionsofthematerial.SecondLEDdevelopmentThedevelopmentofLEDdisplaycanbedividedintothefollowingphases:firstphase1990to1995mainlymonochrome16col

8、graphicsscreen.Usedtodisplaytextsimpleimagesmainlyusedinrailwaystationsfinancialsecuritiesbankspostofficesotherpublicplacesaspublicinfmationdisplaytools.Thesecondstageisfrom1995to1999therehavebeen64256levelgrayscaletwoco

9、lvideoscreen.VideocontroltechnologyimageprocessingopticalfibercommunicationtechnologyapplicationswillenhancetheLEDdisplaytoanewlevel.LEDdisplaycontrolLSIchipsspecialatthistimedevelopedbydomesticcompaniescanbeapplied.Thet

10、hirdstagefrom1999redpuregreenblueLEDinbulkintoChinawhiledomesticenterprisesindepthresearchdevelopmentwkusingredgreenblueLEDproductionofhotelleisurefieldapplications.I.LEDdisplayoftheeffectivenessofthehotelLEDelectronicdi

11、splayisthefourthlargestadvertisingmediaaftertelevision,newspaperwk.ItwillbringtangiblesocialbenefitsfinvestseconomicbenefitsLEDelectronicdisplaycanbereceivedfromthecomputerTVVCRVCDvideocamerasotherinfmationtransmittedpla

12、ydimensionalthreedimensionalanimationtextinfmationatanytime.WitheconomicgrowsAcceleratedpaceofsocialwklifethehotelinpeopleslivesplaysaindispensablerole.Hotelisalargepopulationflowintodaywhereitisasocialgatheringplacefcel

13、ebritiesofcourseitisthewindowwhichneedsinfmationfastestmostaccuratehuge.LEDelectronicdisplaywillbefullofyourcustomersdemfinvestswithahugeimmeasurablelongtermsocialeconomicbenefits.1.SocialApromotethehotelsservicesprefere

14、ntialpoliciestoenhancethehotelsimage.Bpromotethehotels“servicecommitment“othercontentenhancingitsvisibility.Cbeautifythehotelenvironmenttoimprovetheirgradesthetasteismeconducivetoattractingmecustomersafriend.DProvidingco

15、nveniencetoourcustomers.2.EconomicThetwentyfirstcenturyahighlyinfmationientederacpateawarenessoftheadvertisementshasneverbeensostrongisgrowingHotelsflowintensiveinfmationrequirementswideLEDelectronicdisplayahighinfmation

16、contentofthedisplaymediumathewldsbestadvertisingmediacanbewithin365daysayeartoundertakeavarietyofadvertisinganunlimitednumberoffeignbusinessIngoodoperationwillobviouslyabouttocreaterisingprosperityhasbroughtenmouseconomi

17、cbenefits.GuangzhouChinaTradeFairExhibitionHallnexttoalargefullcolscreenatanannualtensofmillionsofdollarsinadvertisingrevenuefinvestsrollinginwealthXiamenEgretPlazaonthestateoflargescalefullcolinjustthreeyearstimethereco

18、veryofmethan500millionyuanoftotalinvestmentisnearly200millionayearprofitftheinvestssteadyflowofeconomicbenefits.ThefegoinganalysistheGrHoteltoconfigurealargeLEDelectronicdisplaywillgiveyouyourguestswithhugelongtermgoodso

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