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TFT-LCD Cov yam ntxwv zoo

TFT-LCD Cov yam ntxwv zoo

Sep 15, 2017

TFT technology tsim nyob rau xyoo 1990, kev siv cov ntaub ntawv tshiab thiab cov cuab yeej tshiab ntawm cov khoom siv hluav taws xob hauv nruab nrab ntawm cov thev naus laus zis, kua siv lead ua kua (LC), cov yeeb yaj kiab hlau thiab organic organic electroluminescent (EL thiab OEL). TFT yog nyob hauv iav los yog yas substrate, xws li tsis yog ib tug ntiv taw (tseem nyob rau hauv cov nplais), los tsim kom muaj cov txheej txheem tshuaj kom tsim nyog rau kev tsim cov khoom loj loj, cov khoom siv hluav taws xob (semiconductor integrated circuit processing through the membrane) (LSIC). Siv cov khoom siv uas tsis yog siv lead ua tau zoo txo nqi, thiab yog qhov kev txuas ntxiv ntawm cov kab kev sib txuas ua ke loj rau cov cheeb tsam loj, ua haujlwm ntau thiab tsawg. Nws yog qhov nyuaj tshaj rau kev tsim TFT ntawm thaj chaw loj ntawm iav los yog yas substrate rau kev tswj cov kev sib tw ntawm IC (LC lossis OLED) dua li ntawm silicon wafer. Kev tsim cov khoom tsim tawm thiab kev tsim khoom siv ntau tshaj li ntawm cov khoom LSI ntawm LSI, yog cov cuab yeej saum toj kawg nkaus (lub purification degree ntawm 100), purity ntawm cov khoom siv raw (purity ntawm hluav taws xob tshwj xeeb yog 99.999985%) ntawm cov khoom niaj hnub.Nws tseem ceeb nta:

(1) Lub Loj Lub Zos: pib ntawm 90s thawj lub cim loj loj iav substrate (300mm * 400mm) TFT-LCD ntau lawm kab, thawj ib nrab ntawm 2000 iav substrate thaj tsam tau raug ntxiv rau 680mm * 880mm), uas yuav tsum pib hauv 09 xyoo ntawm Japanese SHARP peev hauv Osaka 10 cim kab ntawm iav substrate loj mus txog 2880mmX3080mm, qhov loj ntawm lub iav vaj huam sib luag tau txiav 15 daim 42 inch LCD TV.

(2) Siab kev koom ua ke: 1.3 nti TFT nti rau LCD projection, XGA daws teeb meem, muaj tsheej lab ntawm cov pixels. SXGA daws teeb meem (1280 x 1024) tsis siv lead ua silicon 16.1 nti TFT array zaj duab xis thickness tsuas yog 50nm, TAB, IAV thiab SYSTEM ON IAV tshuab, IC kev koom tes ntawm cov khoom siv thiab kev yuav tsum muaj kev, kev nyuaj muaj ntau dua cov txwm LSI.

(3) Hwjchim: TFT yog pib siv los ua ib thaj chaw ntawm qhov chaw nruab nrab ntawm lub teeb tsa kom pom lub teeb pom kev zoo ntawm cov kua muaj kua. Kev daws teeb meem siab, kev tswj ntawm cov khoom ntawm cov khoom kawm tau los ntawm cov kev cai tswjhwm hluav taws xob hauv 0-6V ntau ntau (feem ntau 0.2 mus rau 4V), ua rau nws ua tau kom muaj txiaj ntsig zoo, siab kawg nkaus. TFT-LCD yog thawj cov qauv vaj huam sib luag tso rau hauv tib neeg li keeb kwm kom pom zoo dua CRT. Tam sim no, tib neeg pib pib muab IC tsav mus rau iav substrate, thiab tag nrho cov TFT yuav muaj zog tshaj, uas yog npaug rau cov txheej txheem loj-teev semiconductor integrated circuit.

(4) Tsawg tus nqi: iav substrate thiab yas substrate fundamentally daws qhov teeb meem loj ntawm cov txheej txheem loj ntawm semiconductor integrated circuits, thiab qhib qhov chaw dav dav rau daim ntawv loj loj rau semiconductor integrated circuit.

(5) Ntxiv rau kev siv cov twj ywj pheej: CVD (tshuaj, cov tshuaj vapor deposition (MCVD) cov kua dej khov thiab cov khoom qub, cov tshuab laser kev siv tshuab, uas tsim muaj cov duab yeeb yaj kiab amorphous polycrystalline, tsim ib leeg siv lead ua zaj duab xis. Tsis tas yuav yog cov yeeb yaj kiab uas yog silicon, tab sis tseem muaj lwm yam thib ob thiab cov pab pawg thib rau hauv cov yeeb yaj duab.

(6) Daim ntawv thov dav dav thiab LCD vaj huam sib luag raws li TFT tshuab yog kev lag luam ntawm kev sib koom tes rau hauv zej tsoom xov xwm, kev siv technology kuj tuaj yeem siv rau ib qho kev ua rau cov yeeb yaj kiab organic transistor loj hlob sai hauv cov duab photoluminescence (TFT-OLED) nyob rau hauv kev loj hlob sai.