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Tus qauv thiab kev npaj ntawm TFT kua Crystal kua

Jun 13, 2018

TFT array vaj huam sib luag

l   TFT LCD adjusts lub kua siv lead ua lub kauj los ua kom grey nplua los ntawm kev kho qhov voltage ntawm TFT.

l   Lub qaum thiab qis ob txheej ntawm iav, qhaub cij nrog kua kua, tsim ib phaj capacitor, uas yog li ntawm 0.1pF loj. Yuav kom hloov qhov screen ntawm 60Hz, peb yuav tsum tau tswj txog 16ms. Txawm li cas los xij, qhov hluav taws xob tsis tuaj yeem tswj tau ntev, ua rau muaj qhov hloov voltage thiab qhov ntsuas ntawm qhov ntsuas yuav tsis yog .

l   Vim li no, hauv cov qauv vaj huam sib luag, tus cia lub kaw lus Capacitor CS (qhov yuav tsum tau ua kom txias, txog 0.5pF) thiaj li yuav tsum tau muab cov hluav taws xob tuaj yeem khaws cia rau qhov hloov tshiab tom ntej.

l   Nws yuav hais tau tias TFT nws tus kheej yog ib qho hloov ntawm cov transistors xwb. Lub luag hauj lwm tseem ceeb yog los txiav txim seb qhov voltage ntawm lub LCD rooj tsav tsheb yog them rau qhov taw tes no, thiab qhov siab npaum li cas cov nqi hluav taws xob yuav tau them li cas ntsuas seb qhov ntsuas grey yog sab nraum tus neeg tsav tsheb sab nraud .

l   Feem ntau siv TFT yog peb lub davhlau ya nyob twg. Feem ntau, cov txheej txheem ntawm semiconductor yog ua rau iav substrate, thiab lub hauv paus thiab cov dej ntws tawm nrog ob hnub. Daim phiajcim kabmob hauv qab no yog tawmtsam rau theem nrab thiab muaj ib daim phiaj. Tam sim no ua ntawv thov rau daim phiaj no yog siv los tswj cov kev sib tw tam sim no thiab qhov chaw xa tawm.

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l   Ib chav pixel tiav yog tsim ntawm TFT transistor, cov chaw cia ua lag luam, cov pixel hluav taws xob, lub tshuab electrode thiab cov teeb liab electrode.

l   Tib pixel ntim yog teem dua qub los ua ib qho dej num siv tshuaj ua kua dej.

 

Kev loj hlob ntawm nyias zaj duab xis transistor TFT TFT

l    TFT synchronized nrog cov invention ntawm MOSFET, tab sis qhov ceev thiab daim ntawv thov ntawm TFT yog deb tsawg tshaj li ntawm MOSFET!

l    (1) tsab cai patent ntawm tus thawj TFT tawm thaum xyoo 1934 --- xav txog.

l    Nta: cov qauv txheej txheem sab saum toj, semiconductor nquag txheej CdS zaj duab xis, rooj vag dielectric txheej SiO, thiab qhov rooj dielectric txheej nrog tshuab evaporation.


l    Ntaus tsis tau: kev sib txuas lus gm = 25 mA / V, carrier mobility 150 cm2 / vs, tshaj plaws oscillation zaus 20 MHz.

l    Qhov ntawm CdSe ---- yog 200 cm2 / vs

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l    ( 3 ) Xyoo 1962, thawj MOSFET kuaj tau ua tiav.


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l    ( 4 ) Xyoo 1973, tus txheej txheem migration ntawm thawj CdSe TFT-LCD (6 * 6) zaub .----- TFT yog 20 cm2 / thiab, thiab Ioff = 100 nA. poob rau 1 nA. nyob rau hauv xyoo tas los.

l    ( 5 ) Xyoo 1975, peb pom hais tias tsav tsheb ntawm LCD zaub raws li amorphous silicon - TFT

l    Txoj kev tsiv teb tsaws yog tsawg dua 1 cm2 / tab sis huab cua (H2O, O2) yog qhov ruaj khov.

 

l    ( 6 ) Nyob rau hauv 80s, raws li CdSe, kev tshawb fawb ntawm amorphous silicon TFT txuas ntxiv mus ua ntej. Tsis tas li ntawd, qhov TFS twb tau paub lawm, thiab lub tshuab hluav taws xob tau zoo lawm ntawm 50 txog 400. los ntawm kev txhim kho.

l    P-SiTFT npaj rau lub sijhawm ntawd yuav tsum muaj cov dej kub kub lossis kub siab kub.

l     --- a-Si TFT ua lub ntsiab ntawm LCD khiav tsav vim nws tsis kub thiab tsawg tus nqi.

l (7) tom qab 90 xyoo, peb tseem yuav ua kom zoo dua ntawm Kev Ua Si, p-Si TFT, thiab them nyiaj tshwj xeeb kom zoo rau lub cev tsis muaj zog Polysilicon TFT npaj tshuab. - amorphous silicon khoom theem tshuab crystallization. Organic TFT thiab oxide TFT kuj tau dhau los ua cov kev tshawb nrhiav hotspots. - organic TFT muaj qhov zoo ntawm flexible flexibly, cheeb tsam loj thiab li ntawd.


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Kev sib tw: loj hlob ib qho siv lead ua hluav taws xob ntawm cov iav los yog yas substrates.

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