Tom qab txhua lub vijtsam ntawm cov cuab yeej peb cuam tshuam nrog txhua hnub - xws li xov tooj ntawm tes, khoos phis tawj, thiab smartwatches - yog ib qho tseem ceeb ntawm cov thev naus laus zis: TFT. Tej zaum nws yuav zoo li tsis paub, tab sis nws yog "tus thawj coj" uas tso cai rau cov duab niaj hnub los qhia cov duab meej thiab du. Yog li, dab tsi yog TFT hauv TFT LCD cov ntxaij vab tshaus? Dab tsi ntawm cov khawv koob me me uas nws muaj?
I. Lub ntsiab txhais ntawm TFT: Kev sib koom ua ke ntawm ntau lab ntawm "Microscopic Switches" ntawm lub vijtsam
TFT, luv luv rau Thin-Film Transistor, hu ua nyias zaj duab xis transistor. Koj tuaj yeem xav tias nws yog qhov hloov hluav taws xob me me ntawm qhov screen. Lub ntsiab lus tseem ceeb yog qhov peb feem ntau hu ua TFT yeej tsis muaj nyob hauv kev sib cais. Hauv txhua qhov hu ua "TFT screen" (piv txwv li, TFT-LCD), muaj ntau qhov ntau ntawm TFTs - suav nrog ntau lab lossis kaum lab ntawm cov micro-switches, ua tib zoo teem rau ntawm iav substrate. Txhua TFT ntawm nws tus kheej thiab meej tswj ib lub pixel thIb qho piv txwv yooj yim: Yog tias txhua pixel ntawm lub vijtsam piv rau lub qhov rais, ces TFT hauv TFT LCD npo yog qhov hloov pauv ntse uas tswj cov qib uas lub qhov rais qhib lossis kaw. Nws yog qhov tseeb txiav txim siab npaum li cas lub teeb (los ntawm lub backlight module) tuaj yeem dhau mus, thaum kawg txhais qhov ci thiab xim ntawm lub pixel ntawd. Kev sib koom ua haujlwm ntawm suav tsis txheeb TFTs sib sau ua tiav cov duab peb pom ua ntej peb ob lub qhov muag.
II. Lub hauv paus ntawm Khawv koob: Los ntawm "Passive" mus rau "Active," Revolutionary Work of TFT
Qhov tseeb khawv koob ntawm TFT nyob rau hauv nws realization ntawm ib tug revolutionary tswj txoj kev: "active matrix chaw nyob." Qhov no yog lub ntiaj teb sib nrug los ntawm clumsy "passive matrix" thev naus laus zis uas muaj ua ntej TFT.
Qhov Teeb Meem Tsis Muaj TFT (Passive Matrix):
Nws zoo li siv kab sib txuas ntawm cov kab sib tshuam los tswj tag nrho cov pixels, uas tsis muaj txiaj ntsig thiab nws yooj yim rau teeb liab crosstalk thiab cov lus tsa suab plooj.
Kev txawj ntse nrog TFT (Active Matrix):
Txhua pixel muaj nws tus kheej tshwj xeeb TFT hloov. Thaum lub pixel yuav tsum tau tsav, lub teeb liab tswj tau meej qhov chaw thiab hais kom pixel lub TFT kom "tig" lossis "tua", tuav nws lub xeev kom txog rau thaum lub sijhawm tshiab tshiab. Qhov no coj cov txiaj ntsig hauv qab no:
Teb ceev ceev: TFT keyboards ua haujlwm ntawm qhov ceev heev, txo cov suab nrov plooj hauv cov duab dynamic ntawm TFT LCD cov ntxaij vab tshaus.
Kev siv hluav taws xob qis dua: Cov yam ntxwv ntawm lub xeev tuav txo qhov kev siv hluav taws xob tag nrho ntawm TFT LCD cov ntxaij vab tshaus.
III. Debunking the Myth: TFT ≠ Ib Hom Tshuaj; Nws yog "Lub hlwb hauv qab" ntawm qhov screen
Ib qho kev xav tsis zoo yog tias "TFT yog hom kev tshuaj ntsuam." Hauv kev muaj tiag, TFT nws tus kheej tsis tawm lub teeb lossis tsim xim. Nws yog qhov tseem ceeb ntawm kev tswj hwm kev tswj hwm - "qhov chaw nyob hauv qab" lossis "core hlwb" ntawm lub vijtsam.
TFT-LCD npo, uas peb paub zoo tshaj plaws, yog cov khoom siv thev naus laus zis ua tiav. Nyob rau hauv cov ntaub ntawv no, TFT array nyob rau hauv lub TFT LCD npo yog lub luag hauj lwm rau precisely tsav cov kev sib raug zoo ntawm cov kua siv lead ua kua molecules los tswj txoj kev ntawm lub teeb los ntawm lub backlight. Txawm tias nyob rau hauv ntau dua OLED cov ntxaij vab tshaus, thaum tsim cov khoom loj loj lossis cov khoom lag luam siab, TFT array tseem yuav tsum tau ua raws li lub voj voog rov qab kom raug tswj lub teeb tawm ntawm txhua OLED pixel. Nws tuaj yeem hais tias tsis muaj TFT thev naus laus zis, qhov kev txhais siab, du TFT LCD cov lus peb pom niaj hnub no yuav tsis muaj nyob.
IV. Lub Evolution ntawm TFT Tsev Neeg: Cov Khoom Siv Tshiab Uas Ua Haujlwm Leaps
Kev ua tau zoo ntawm TFT feem ntau nyob ntawm cov khoom siv semiconductor siv hauv nws cov khoom tsim. Nws keeb kwm evolutionary yog ib qho kev taug kev ntawm cov khoom siv tshiab:
Amorphous Silicon (a-Si): Thawj qhov tseem ceeb TFT thev naus laus zis, nrog rau cov nqi tseem ceeb tab sis kev ua haujlwm tsawg, ua rau nws nyuaj rau kev ua kom tau raws li qhov xav tau ntawm high-end zaub.
Low-Temperature Polycrystalline Silicon (LTPS): Ib qho kev dhia hauv kev ua haujlwm, nrog kev txav hluav taws xob siab, ua rau cov ntxaij vab tshaus kom muaj zog ntau dua thiab ua haujlwm. Siv dav hauv high-end LCD thiab OLED cov ntxaij vab tshaus.
Hauv cov ntsiab lus, cov khawv koob ntawm TFT hauv TFT LCD cov ntxaij vab tshaus nyob hauv nws lub peev xwm los hloov cov teeb meem hluav taws xob tsis zoo rau hauv cov duab digital uas tuaj yeem tswj tau nrog pixel-theem precision. Nws yog unsung, meej engineer muab zais hauv qab lub iav vaj huam sib luag. Nws yog kev sib koom tes ua haujlwm ntawm ntau lab ntawm TFT micro-switches uas thaum kawg coj peb lub meej meej, tiag tiag, thiab du lub ntiaj teb pom kev ua ntej peb ob lub qhov muag. Nkag siab TFT hauv TFT LCD cov ntxaij vab tshaus txhais tau tias nkag siab lub hauv paus ntawm cov cuab yeej siv niaj hnub no.
Post lub sij hawm: Oct-22-2025