Peb lub PChome computer lub tsev tau pib hloov kev sib tw ntawm LCD thiab cov khoom siv tshuab technology (qhov sib txawv sib npaug ntawm qhov muag ntawm LCD thiab cov kev ntsuas LED). Tom qab nyeem zaj lus no qhov kev sib piv, cov neeg siv kuj tau kawm txog LCD thiab LED tam sim no. Los ntawm cov cuab yeej sib txawv hauv kev siv, txawm tias nws yog ib daim duab zoo li qub, tab sis ib qho kev ua si hauv kev lom zem, LED qhov teeb pom kev pom kev muaj zog xim tu tub tu kiv thiab xim hloov tag nrho tso rau hauv CCFL backlight zaub underfoot. Niaj hnub no, tus neeg sau yuav siv ob qho khoom xa los ntawm HKC los tuav cov kev xeem sib tw thiab sib piv cov ntaub ntawv ntawm cov khoom siv.
HKC xa ob yam khoom yog LED backlit zaub T9811L thiab CCFL backlit LCD S988A, qhov loj yog tam sim no lub mainstream ntawm 19 ntiv tes, qhov screen piv kuj tseem pom los ntawm pej xeem 16:10, thiab tus nqi sib txawv ntawm ntau li 199 yuan, HKC T9811L yog 899 yuan, S988A yog 700 yuan. Qhov sib txawv ntawm ze li ntawm ob puas yuan yuav ua rau ib tug phooj ywg uas tsis ntes txias rau ntawm lub monitor xaiv "txaus siv" LCD. Txawm li cas los, qhov tseeb, qhov no yog qhov tseeb? Peb mam li saib cov kev sib piv cov duab sib dhos hauv qab no.
Sib piv ntawm LCD thiab LED backlight tswj & teeb liab kev sib tw
Tus txheeb ze rau tus thawj lub npe txawv teb chaws ntawm cov khoom muag, cov khoom siv hauv tsev feem ntau pluag, kom txuag tau cov nqi, qee cov khoom qis kawg tsuas pom ntawm PCB pawg thawj coj saib kev sib tsuam thiab kev tuav qhov kev lag luam. Tej khoom zoo li no tsis tuaj yeem lav tau raws li kev ua haujlwm lossis lub neej.
Txoj kev rho tawm ntawm cov zaub yog qhov teeb meem. Ntau tus screws tseem yuav tsum nco ntsoov lawv cov haujlwm thaum lawv raug rhuav tshem, thiab tseem ua kom puas rau pwm. Tom qab peb xub qhib lub npog sab nram qab, peb pom qhov txawv tag nrho.
Backlight Circuit Court sib piv
Tom qab nyeem cov duab saum toj no, kuv ntseeg tias cov neeg nyeem yuav paub sai li sai tau yog vim li cas cov thev yog thia. Kev siv LED backlight technology ua rau lub LCD saib tsis tas yuav ua kom ntau rau txoj kev tuav tswj kev nrig. Tus me thiab thinner LED backlight tswj PCB version yog txuas ncaj qha nruab nrab ntawm lub hau sab nrauv thiab lub LCD vaj huam sib luag. Saib tom qab ntawm lub teeb ci ntsa iab LCD tswj, cov regulators loj thiab cov khawm tus neeg ua hauj lwm muab ob npaug ntawm qhov Board PCB.
HKC S988A tso saib REALTEK ib nti scheme RTD2270, mas txhawb 1680 * 1050 thiab 1920 * 1200 daws teeb meem, nrog rau MCU. Lub nti yog tsuas yog rau cov ntxaij me me xwb. T9811L monitor siv Raychem RTD2120L ib leeg-chip tswj kev pabcuam, los ntawm qhov kev ua haujlwm tsis txawv npaum li cas, qhov loj ntawm PCB version tsis txawv npaum li cas, tab sis tus nqi hluav taws xob RTD2120L, qhov no yog HKC T9811L cov nqi siv nyiaj vim .
LCD thiab LED vaj huam sib luag drive circuit chip sib piv
Lub vaj huam sib luag tsav tswj kev tswj tuav lub luag hauj lwm tseem ceeb ntawm kev saib ntawm hmo ntuj saib cov khoom siv hauv cov kua siv ua kua ua kua. Cov kev sib koom ua ke thiab tshuab kom loj hlob ntawm cov tsav ntiag tug ncaj qha mus cuam tshuam qhov kawg cov nyhuv ntawm cov kua siv lead ua kua.
Tom qab rhuav tshem, peb tuaj yeem pom tias MST7336C nyob rau hauv Chapters ntawm MStar yog siv los ntawm HKC T9811L. Qhov nti no muaj ib txoj cai yooj yim, yog li ntawd nws txoj kev koom ua ke thiab kev siv yuav yooj yim dua thiab tus nqi yog tswj ntxiv. Lub S988A tau xaiv lub NQVATEK 0836 chip tov ntawm lub cim dhau los. Txawm hais tias lub tshuab muaj ntau dua tab sis qhov kev sib tos yog tsis siab, nws tsis yog tus nqi-zoo.
LCD thiab LED Diffuser & Backlight
Tam sim no, cov kua siv lead ua kua feem ntau siv ob lub luminescent leeg los yog ob pawg ntawm LED teeb nrig teeb. Qhov no yuav tsum tau ib lub diffuser rau lub teeb pom kev zoo xws li cov teeb ci ntawm cov kua siv lead ua kua. Yog li, seb tus diffuser yog txaus los txiav txim siab qhov ci ntsa iab ntawm cov kua deg siv ua kua. .
Tom qab dismantling, peb pom tias cov tsoos LCDs tsuas yog siv ob daim duab thaiv, thaum T9811L siv cov nplooj ntawv 3-txheej diffusion. Lub teeb ci ntsa iab ntawm cov teeb pom kev zoo ntawm lub ntsej muag yog pom tseeb.
Core txawv
Nyob rau hauv lub PC PC OEM lub ntsiab lus ntawm qhov pom ntawm technology LED, peb tau hais tias qhov teeb meem tam sim no LED tsis yog qhov tseeb LED. Qhov txawv ntawm cov tsoos LCD yog tias qhov kev kos duab yog qhov txawv. Cia wb mus saib ntawm lub npe nrov LED backlight zaub ua ke. Qhov sib txawv ntawm CCFL yog dab tsi?
Los ntawm cov duab sib piv saum toj no, peb tuaj yeem pom tias HKC T9811L zaub tsuas yog siv cov lus saum toj no LED backlight, thiab cov cuab yeej pabcuam uas raug teeb tsa nyob rau sab saum toj ntawm qhov screen heev tusyees. Lub S988A siv cov tsoos ob lub teeb txias teeb, kom lub zog txuag txig ntawm LED backlight zaub yog ib txwm muaj hwjchim.
