TFT thev naus laus zis tau siv dav hauv cov khoom vaj khoom tsev niaj hnub. Lawv siv rau hauv kev tsim khoom ntawm cov saib, TV, cov ntxaij vab tshaus smartphone, cov koob yees duab thiab ntau lwm yam khoom siv.
TFT cov zaub yog dab tsi?
TFT (Thin film transistor) yog txhais los ntawm lus Askiv ua ib daim nyias nyias transistor. Yog li TFT yog ib hom ua kua siv lead ua cov zaub uas siv cov kev ua lej sib cais tswj tau los ntawm cov transistors heev. Cov ntsiab lus zoo li no tau tsim los ntawm ib zaj duab xis nyias, cov tuab uas yog kwv yees li 0.1 micron.
Ntxiv rau qhov me me, TFT cov lus qhia nrawm. Lawv muaj kev sib piv siab thiab cov duab pom tseeb, ntxiv rau lub kaum ntse ntse pom zoo. Cov zaub zoo li no tsis muaj lub vijtsam muag, yog li lub qhov muag tsis pom kev. TFT cov lus qhia tseem tsis muaj kev nqaj tsom mus rau qhov tsis xws luag, cuam tshuam rau kev sib nqus, thiab cov duab tsis zoo thiab qhov teeb meem pom tseeb. Lub zog noj ntawm cov lus qhia yog 90% txiav txim los ntawm lub zog ntawm LED backlight matrix lossis rov qab teeb txawb. Muab piv rau tib tus CRTs, kev siv lub zog ntawm TFT cov lus qhia yog li tsib zaug qis dua.
Tag nrho cov zoo no muaj vim yog qhov tseeb tias cov thev naus laus zis hloov kho cov duab ntawm ntau lub siab. Qhov no yog vim hais tias cov lus ntsiab lus yog tsav los ntawm cais TFTs. Tus naj npawb ntawm cov ntsiab hauv cov lus TFT yog peb zaug ntau dua li tus naj npawb ntawm pixels. Ntawd yog, muaj peb xim transistors ib kis, uas sib haum rau cov xim RGB yooj yim - xim liab, ntsuab thiab xiav. Piv txwv li, hauv cov zaub nrog kev daws teeb meem ntawm 1280x1024 pixels, cov naj npawb ntawm transistors yuav muaj peb zaug ntxiv, uas yog - 3840x1024. Qhov no kom meej meej cov hauv paus ntsiab lus ntawm TFT thev naus laus zis.
Qhov tsis zoo ntawm TFT matrices
TFT cov lus qhia, tsis zoo li CRTs, tuaj yeem qhia cov duab pom meej hauv tsuas yog "ib qho kev daws teeb meem" daws teeb meem. Qhov seem ntawm cov kev daws teeb meem yog ua tiav los ntawm kev txhais lus. Tsis tas li ntawd ib qho tseem ceeb qhov tsis txaus ntseeg yog qhov muaj zog uas tsis sib thooj ntawm qhov sib txawv ntawm qhov pom. Qhov tseeb, yog tias koj saib ntawm cov lus qhia ntawm sab, saum lossis hauv qab, cov duab yuav ua rau txawv txawv. Qhov teeb meem no tsis tau muaj dua nyob rau hauv CRT cov lus.
Tsis tas li ntawd, cov transistors ntawm txhua lub pixel tuaj yeem ua tsis tiav, uas yuav ua rau cov tsos ntawm cov pixels ploj. Cov ntsiab lus ntawd, raws li txoj cai, tsis tuaj yeem kho. Thiab nws hloov tawm tias qee qhov chaw hauv nruab nrab ntawm lub vijtsam (lossis ntawm kaum tsev) tej zaum yuav muaj qhov chaw me me tab sis pom, uas yog qhov cuam tshuam heev thaum ua haujlwm ntawm lub khoos phis tawm. Tsis tas li ntawd, hauv TFT cov lus qhia, lub txhoj tsis muaj kev tiv thaiv los ntawm iav, thiab tsis muaj kev cuam tshuam yog qhov ua tau thaum cov zaub nyem khov kho.
