Hauv cov khoom siv hauv tsev niaj hnub, xws li cov khoom xws li TFT zaub yog siv dav. Nws yog siv nyob rau hauv ntau yam khoom siv: lub computer saib, TVs, xov tooj ntawm tes cov ntxaij vab tshaus, camcorders thiab koob yees duab, thiab nyob rau hauv ntau lwm yam khoom siv. Qhov no technology yog dab tsi, dab tsi yog nws zoo? Hauv tsab xov xwm no, peb yuav tshuaj xyuas seb TFT zaub yog dab tsi, nws qhov zoo thiab qhov tsis zoo.
Thin-film transistor (TFT) txhais los ntawm lus Askiv txhais tau tias nyias-film transistor. Cov ntsiab lus no yog tsim los ntawm cov yeeb yaj kiab nyias nrog lub thickness ntawm 0.1-0.01 microns. Cov no yog cov transistors uas tswj TFT matrix, nws tseem hu ua "active". Cov khoom siv ua kua siv lead ua kua yog cais raws li passive. Lub active TFT zaub, nyob rau hauv sib piv rau LCD thev naus laus zis, muaj lub sij hawm teb sai dua, ntau dua cov duab meej thiab qhov sib txawv, thiab lub kaum sab xis loj dua. Cov khoom siv no tsis muaj qhov screen flicker, uas ua rau lub qhov muag nkees. Nyob rau hauv active matrices, pixels tsim lub teeb flux nrog ib tug muab xim, yog li cov zaub TFT yog hobrighter dua passive LCD matrices. Tag nrho cov txiaj ntsig no tau piav qhia los ntawm qhov tseeb tias cov thev naus laus zis tau piav qhia muaj ntau dua cov duab refresh tus nqi. Qhov no yog vim txhua qhov chaw ntawm cov zaub yog tswj los ntawm nyias nyias zaj duab xis transistor. Tus naj npawb ntawm cov ntsiab lus hauv TFT thev naus laus zis yog peb zaug ntau dua li cov pixels. Yog li ntawd, ib lub ntsiab lus sib raug rau peb lub hlwb: liab, ntsuab thiab xiav (RGB system). Piv txwv li, xav txog ib qho matrix: TFT zaub (xim) nrog kev daws teeb meem ntawm 1280x1024 pixels, raws li, tus naj npawb ntawm transistors nyob rau hauv xws li ib tug ntaus ntawv yuav yog 3840x1024.
thawj cov kua siv lead ua kua matrices tau tshwm sim hauv xyoo 1972. Txij thaum ntawd los, cov thev naus laus zis no tau hloov zuj zus thiab hloov pauv loj heev. Txawm li cas los xij, tag nrho cov shortcomings yuav tsis raug tshem tawm. Piv txwv li, vim muaj coob tus pixels, koj tuaj yeem pom cov "tawg" ntawm lawv, uas yog, tsis ua haujlwm. Xws li cov ntsiab lus puas yuav kho tsis tau. Nws yog ib nqi sau cia hais tias nyob rau hauv lub active matrices, "pob" pixels yog tsis tshua pom tau hais tias ntawm passive li los yog dual-scan zaub. Kev txhim kho tas li ntawm TFT-technologies tau txo qis tus nqi ntawm kev tsim cov saib, tam sim no "kim kab txawv" tau dhau los ua qhov qub. Kev yooj yim ntawm kev siv tau dhau los ua ib qho tseem ceeb hauv kev siv cov matrices nquag hauv kev lag luam. Niaj hnub no, tsis muaj leej twg xav tsis thoob los ntawm TFT kov zaub, thiab nees nkaum xyoo dhau los nws yog qhov npau suav kawg. Kev sib kis ntawm cov neeg saib xyuas tau ua ntej los ntawm qhov tshwm sim ntawm cov qauv uas muaj peev xwm ua haujlwm hauv qhov chaw ua haujlwm hnyav.tej yam kev mob. Raws li qhov tshwm sim, TFT zaub tau tsim los ua ke nrog cov ntsiab lus ntawm kev nthuav tawm cov ntaub ntawv pom, nrog rau cov ntaub ntawv tawm tswv yim (keyboard). Lub operability ntawm xws li ib tug system yog muab los ntawm lub serial interface xws li. Cov cuab yeej no txuas nrog ntawm ib sab mus rau lub saib, thiab ntawm qhov tod tes - mus rau qhov chaw nres nkoj serial (COM1 - COM4). PIC controllers yog siv los tswj thiab txiav txim siab cov teeb liab los ntawm lub sensor, nrog rau kev txwv "thaws". Lawv muaj peev xwm muab kev kub ceev, nrog rau qhov tseeb hauv kev txiav txim siab kov cov ntsiab lus.
Nyob rau hauv xaus, TFT technologies raws li cov lus qhia thiab sensors nyob ib puag ncig peb nyob rau hauv lub neej txhua hnub, lawv yog siv nyob rau hauv yuav luag txhua yam khoom siv hauv tsev.
