Lub TFT-LCD kua siv lead ua zaub yog ib zaj duab xis nyias transistor hom kua siv lead ua zaub, tseem hu ua "xim tiag" (TFT). TFT kua siv lead ua kua muaj qhov hloov pauv semiconductor rau txhua pixel, thiab txhua lub pixel tuaj yeem tswj tau ncaj qha los ntawm dot pulses, yog li txhua lub node yog tus kheej ywj pheej thiab tuaj yeem tswj tsis tu ncua, uas tsis tsuas yog txhim kho cov lus teb ceev ntawm lub vijtsam, tab sis kuj tuaj yeem ua tau. Kev tswj xyuas kom raug Cov xim gradation, yog li cov xim ntawm TFT kua siv lead ua yog ntau tiag tiag. TFT kua siv lead ua kua zaub cov ntxaij vab tshaus yog tus cwj pwm los ntawm qhov ci ci zoo, qhov sib txawv siab, muaj zog txheej, thiab cov xim ci, tab sis lawv kuj muaj qhov tsis zoo ntawm kev siv hluav taws xob thiab tus nqi siab.
TFT (Thin Film Transistor) yog nyias zaj duab xis teb cov nyhuv transistor, uas yog hom active matrix kua siv lead ua zaub. Nws tuaj yeem "qhib" tswj txhua tus pixel ntawm lub vijtsam, uas tuaj yeem txhim kho lub sijhawm teb zoo heev. Feem ntau, lub sij hawm teb ntawm TFT yog ceev ceev, txog 80 milliseconds, thiab lub kaum sab xis saib yog loj, feem ntau ncav cuag li 130 degrees.
TFT LCD npo polarity conversion txoj kev:
Kev tsav tsheb hluav taws xob ntawm cov kua siv lead ua kua molecules tsis tuaj yeem kho tau ntawm qee tus nqi, txwv tsis pub, dhau sijhawm, cov kua siv lead ua kua molecules yuav dhau los ua polarization thiab maj mam poob lawv qhov kev hloov kho qhov muag. Yog li ntawd, txhawm rau kom tsis txhob muaj kev puas tsuaj ntawm cov yam ntxwv ntawm cov kua siv lead ua kua molecules, lub zog tsav ntawm cov kua siv lead ua kua molecules yuav tsum tau polarized. Qhov no yuav tsum tau cov zaub voltage nyob rau hauv cov kua siv lead ua kua zaub yuav tsum tau muab faib ua ob polarities, ib tug zoo polarity thiab lwm yam yog tsis zoo polarity. . Thaum qhov hluav taws xob ntawm cov zaub electrode siab dua qhov voltage ntawm cov khoom siv electrode, nws yog hu ua polarity zoo; Thaum qhov hluav taws xob ntawm cov khoom siv hluav taws xob qis dua qhov hluav taws xob ntawm cov khoom siv hluav taws xob, nws hu ua tsis zoo polarity. Txawm hais tias qhov zoo polarity lossis qhov tsis zoo polarity, yuav muaj cov nplai grey nrog tib lub ci ci, yog li thaum tus nqi tseeb ntawm qhov sib txawv ntawm cov iav sab sauv thiab sab qis yog tsau, cov nplais grey pom tau zoo ib yam. . Txawm li cas los xij, nyob rau hauv ob qhov xwm txheej no, txoj kev tig ntawm cov kua siv lead ua kua molecules yog qhov sib txawv kiag li, uas tuaj yeem zam cov yam ntxwv saum toj no hais txog kev puas tsuaj tshwm sim thaum tig ntawm cov kua siv lead ua kua molecules ib txwm nyob rau hauv ib qho kev taw qhia. Muaj plaub txoj kev hloov pauv polarity, xws li ncej-los ntawm-ncej theem inversion, kab-los-kab theem inversion, kem-los-kem theem inversion, thiab point-by-point theem inversion.
Rau lub thav duab-los ntawm-nce qib inversion hom, nyob rau hauv tib lub thav duab, tag nrho cov ntsiab lus nyob ib sab nyob rau hauv tag nrho cov tshuaj ntsuam muaj tib polarity, thaum nyob ib sab ncej polarities txawv; rau kab-los-kab theem inversion hom, tib polarity nyob rau tib kab. Polarity, thiab cov kab uas nyob ib sab muaj cov polarities sib txawv; rau kem-los-kem theem inversion hom, tib polarity nyob rau tib kem, thaum cov kab uas nyob ib sab muaj sib txawv polarities; rau qhov point-by-point theem inversion hom, txhua lub ntsiab lus Lub polarities ntawm plaub lub ntsiab lus nce, nqis, sab laug, thiab sab xis nyob ib sab ntawm tus kheej yog txhua yam sib txawv.
Tam sim no, ntau cov ntxaij vab tshaus LCD ntawm tus kheej lub computer, feem ntau ntawm lub vaj huam sib luag polarity conversion txoj kev siv yog point-by-point conversion txoj kev. Vim li cas? Yog vim li cas yog tias cov zaub zoo ntawm point-by-point theem inversion yog zoo dua li lwm txoj kev hloov dua siab tshiab. Cov lus teev cov kev sib piv ntawm plaub lub polarity conversion hom: ncej-by-frame theem inversion, kab-los-kab theem inversion, kem-los-kem theem inversion, thiab point-by-point theem inversion.
Lub npe hu ua Flicker tshwm sim yog tias lub vijtsam yuav hnov dhau, tab sis nws tsis yog qhov kev xav pom qhov tshwm sim, tab sis vim tias qhov grey nplai ntawm lub vijtsam yuav hloov me ntsis txhua zaus lub vijtsam hloov kho, ua rau tib neeg xav tias lub vijtsam flickering. . . Qhov xwm txheej no feem ntau yuav tshwm sim siv txoj kev hloov pauv polarity ntawm cov ncej-los-nruab theem thim rov qab. Vim hais tias tag nrho cov duab ntawm lub thav duab-los ntawm-ncej inversion yog tib lub polarity, thaum daim duab zoo rau lub sijhawm no, nws yuav tsis zoo rau lwm zaus. Yog hais tias muaj me ntsis yuam kev nyob rau hauv ib tug ntau voltage, ces qhov zoo thiab tsis zoo polarity yuav yog tib grey scale. Yuav muaj qhov sib txawv ntawm qhov hluav taws xob, thiab ntawm chav kawm grey nplai xav txawv, raws li qhia hauv daim duab 2. Nyob rau hauv cov ntaub ntawv ntawm tas li hloov cov ntxaij vab tshaus, Flicker tshwm sim yuav tshwm sim vim qhov hloov pauv ntawm cov ntxaij vab tshaus zoo thiab tsis zoo. Txoj kev hloov pauv polarity ntawm lwm cov vaj huam sib luag, txawm hais tias yuav muaj qhov tshwm sim Flicker no, tab sis vim tsis zoo li lub thav duab-los ntawm-nce qib inversion, lub polarity ntawm tag nrho cov tshuaj ntsuam tau hloov nyob rau tib lub sijhawm. Tsuas muaj ib kab lossis ib kab xwb, thiab txawm tias ib qho kev hloov pauv ntawm polarity. Raws li tib neeg lub qhov muag muaj kev txhawj xeeb, nws yuav tsis pom tseeb.
Qhov tshwm sim hu ua Crosstalk yog hais txog qhov nruab nrab ntawm cov ntsiab lus uas nyob ib sab, cov ntaub ntawv uas yuav tsum tau nthuav tawm yuav cuam tshuam rau lwm tus, yog li qhov kev tshuaj ntsuam pom yuav tsis raug. Txawm hais tias muaj ntau yam ua rau Ctosstalk tshwm sim, tsuav yog qhov polarities ntawm cov ntsiab lus nyob ib sab sib txawv, qhov tshwm sim ntawm qhov tshwm sim tuaj yeem raug txo.
Lub hauv paus ntsiab lus ua haujlwm ntawm TFT kua siv lead ua zaub:
Yuav ua li cas TFT ua hauj lwm TFT yog cov ntawv luv ntawm "Thin Film Transistor", feem ntau yog hais txog nyias zaj duab xis kua siv lead ua zaub, tab sis qhov tseeb yog hais txog nyias zaj duab xis transistors (matrix) - tuaj yeem "qhib" ntawm qhov screen ntawm txhua tus kheej pixel tswj, qhov no yog qhov Keeb kwm ntawm lub npe hu ua active matrix TFT (active matrix TFT). Yog li cas raws nraim cov duab tsim? Lub hauv paus ntsiab lus tseem ceeb yog qhov yooj yim heev: lub vijtsam zaub yog tsim los ntawm ntau pixels uas tuaj yeem tawm lub teeb ntawm txhua xim, thiab lub hom phiaj tuaj yeem ua tiav los ntawm kev tswj txhua pixel kom pom cov xim sib xws. Hauv TFTLCD, backlight technology feem ntau yog siv. Txhawm rau kom tswj tau cov xim thiab ci ntsa iab ntawm txhua pixel, nws yog ib qho tsim nyog yuav tsum tau nruab ib lub shutter zoo li hloov tom qab txhua pixel. Thaum lub "qhov muag tsis pom kev" qhib, lub teeb tuaj yeem dhau mus, thiab "qhov muag tsis pom kev" "Thaum nws raug kaw, lub teeb tsis tuaj yeem dhau mus. Tau kawg, technically, nws tsis yooj yim li qhov uas nyuam qhuav hais.
LCD (Liquid Crystal Display) siv cov yam ntxwv ntawm cov kua siv lead ua kua (kua thaum rhuab, thiab crystallized rau hauv cov khoom thaum txias). Feem ntau, cov kua siv lead ua kua muaj peb hom:
Smectic kua siv lead ua zoo ib yam li av nplaum
Nematic kua siv lead ua zoo li lub matchstick zoo
Cholestic kua siv lead ua kua
Cov kua siv lead ua kua siv cov filaments, thiab thaum ib puag ncig sab nraud hloov pauv, nws cov qauv molecular kuj yuav hloov, thiab yog li muaj cov khoom sib txawv ntawm lub cev - nws tuaj yeem ua tiav lub hom phiaj ntawm kev cia lub teeb los ntawm kev thaiv lub teeb - uas zoo li cov qhov muag tsis pom tam sim no.
Txhua leej txhua tus paub peb lub ntsiab xim, yog li txhua pixel ntawm lub vijtsam zaub xav tau peb lub ntsiab lus zoo sib xws uas tau piav qhia saum toj no los tswj peb xim liab, ntsuab, thiab xiav feem.
Qhov feem ntau siv ib qho yog twisted nematic TFT LCD (Twisted Nematic TFT LCD). Cov duab hauv qab no piav qhia txog txoj hauv kev ua haujlwm ntawm hom TFT LCD no. Cov thev naus laus zis uas twb muaj lawm sib txawv heev, thiab peb yuav nthuav dav lawv hauv qhov thib ob ntawm kab lus no.
Muaj grooves nyob rau sab sauv thiab qis txheej. Cov grooves nyob rau sab sauv txheej yog teem rau longitudinally thiab cov grooves nyob rau hauv qis txheej yog teem horizontally. Cov txheej hauv qab yog teem rau horizontally. Thaum tsis muaj qhov hluav taws xob siv, cov kua siv lead ua kua yog nyob rau hauv lub xeev ntuj, thiab lub teeb tawm los ntawm lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm daim duab twisted nematic TFT zaub hauv daim duab 2a tom qab dhau los ntawm interlayer yuav twisted los ntawm 90 degrees, yog li ntawd nws yuav dhau mus. los ntawm cov txheej txheem qis dua.
Thaum ib qho hluav taws xob raug siv ntawm ob txheej, ib qho hluav taws xob yog tsim. Nyob rau lub sijhawm no, cov kua nplaum ua kua yog ua raws vertically, yog li lub teeb yuav tsis raug twisted - qhov tshwm sim yog tias lub teeb tsis tuaj yeem dhau los ntawm cov txheej txheem qis.
TF:
Cov xim lim tau muab faib ua peb hom: liab, ntsuab thiab xiav raws li lawv cov xim. Lawv tau teem rau ntawm iav substrate los tsim ib pab pawg (dot pitch) sib haum mus rau ib pixel. Txhua lub lim dej monochromatic hu ua sub-pixel (sub-pixel). ). Hauv lwm lo lus, yog tias TFT zaub txhawb kev daws teeb meem siab tshaj plaws ntawm 1280 × 1024, ces tsawg kawg yog 1280 × 3 × 1024 sub-pixels thiab transistors yuav tsum tau. Rau ib tug 15-inch TFT zaub (1024 × 768), ces ib pixel yog hais txog 0.0188 nti (sib npaug rau 0.30mm), rau ib tug 18.{{16} }inch TFT zaub (1280 × 1024), nws yog 0.011 ntiv tes (sib npaug rau 0.28mm) Raws li peb txhua tus paub, pixels yog qhov txiav txim siab rau cov zaub, thiab qhov me me txhua pixel yog, qhov loj dua qhov siab tshaj plaws daws teeb meem uas cov zaub tuaj yeem ua tiav. Txawm li cas los xij, vim muaj kev txwv ntawm cov yam ntxwv ntawm lub cev ntawm cov transistors, qhov loj me tam sim no ntawm txhua pixel ntawm TFT yog 0.0117 ntiv tes (0.297mm), yog li rau ib qho 15-inch zaub, qhov siab tshaj plaws daws teeb meem tsuas yog 1280 × 1024.
TFT LCD npo polarity conversion txoj kev:
Kev tsav tsheb hluav taws xob ntawm cov kua siv lead ua kua molecules tsis tuaj yeem kho tau ntawm qee tus nqi, txwv tsis pub, dhau sijhawm, cov kua siv lead ua kua molecules yuav dhau los ua polarization thiab maj mam poob lawv qhov kev hloov kho qhov muag. Yog li ntawd, txhawm rau kom tsis txhob muaj kev puas tsuaj ntawm cov yam ntxwv ntawm cov kua siv lead ua kua molecules, lub zog tsav ntawm cov kua siv lead ua kua molecules yuav tsum tau polarized. Qhov no yuav tsum tau cov zaub voltage nyob rau hauv cov kua siv lead ua kua zaub yuav tsum tau muab faib ua ob polarities, ib tug zoo polarity thiab lwm yam yog tsis zoo polarity. . Thaum qhov hluav taws xob ntawm cov zaub electrode siab dua qhov voltage ntawm cov khoom siv electrode, nws yog hu ua polarity zoo; Thaum qhov hluav taws xob ntawm cov khoom siv hluav taws xob qis dua qhov hluav taws xob ntawm cov khoom siv hluav taws xob, nws hu ua tsis zoo polarity. Txawm hais tias qhov zoo polarity lossis qhov tsis zoo polarity, yuav muaj cov nplai grey nrog tib lub ci ci, yog li thaum tus nqi tseeb ntawm qhov sib txawv ntawm cov iav sab sauv thiab sab qis yog tsau, cov nplais grey pom tau zoo ib yam. . Txawm li cas los xij, nyob rau hauv ob qhov xwm txheej no, txoj kev tig ntawm cov kua siv lead ua kua molecules yog qhov sib txawv kiag li, uas tuaj yeem zam cov yam ntxwv saum toj no hais txog kev puas tsuaj tshwm sim thaum tig ntawm cov kua siv lead ua kua molecules ib txwm nyob rau hauv ib qho kev taw qhia. Muaj plaub txoj kev hloov pauv polarity, xws li ncej-los ntawm-ncej theem inversion, kab-los-kab theem inversion, kem-los-kem theem inversion, thiab point-by-point theem inversion.
Rau lub thav duab-los ntawm-nce qib inversion hom, nyob rau hauv tib lub thav duab, tag nrho cov ntsiab lus nyob ib sab nyob rau hauv tag nrho cov tshuaj ntsuam muaj tib polarity, thaum nyob ib sab ncej polarities txawv; rau kab-los-kab theem inversion hom, tib polarity nyob rau tib kab. Polarity, thiab cov kab uas nyob ib sab muaj cov polarities sib txawv; rau kem-los-kem theem inversion hom, tib polarity nyob rau tib kem, thaum cov kab uas nyob ib sab muaj sib txawv polarities; rau qhov point-by-point theem inversion hom, txhua lub ntsiab lus Lub polarities ntawm plaub lub ntsiab lus nce, nqis, sab laug, thiab sab xis nyob ib sab ntawm tus kheej yog txhua yam sib txawv.
Tam sim no, ntau cov ntxaij vab tshaus LCD ntawm tus kheej lub computer, feem ntau ntawm lub vaj huam sib luag polarity conversion txoj kev siv yog point-by-point conversion txoj kev. Vim li cas? Yog vim li cas yog tias cov zaub zoo ntawm point-by-point theem inversion yog zoo dua li lwm txoj kev hloov dua siab tshiab. Cov lus teev cov kev sib piv ntawm plaub lub polarity conversion hom: ncej-by-frame theem inversion, kab-los-kab theem inversion, kem-los-kem theem inversion, thiab point-by-point theem inversion.
Lub npe hu ua Flicker tshwm sim yog tias lub vijtsam yuav hnov dhau, tab sis nws tsis yog qhov kev xav pom qhov tshwm sim, tab sis vim tias qhov grey nplai ntawm lub vijtsam yuav hloov me ntsis txhua zaus lub vijtsam hloov kho, ua rau tib neeg xav tias lub vijtsam flickering. . . Qhov xwm txheej no feem ntau yuav tshwm sim siv txoj kev hloov pauv polarity ntawm cov ncej-los-nruab theem thim rov qab. Vim hais tias tag nrho cov duab ntawm lub thav duab-los ntawm-ncej inversion yog tib lub polarity, thaum daim duab zoo rau lub sijhawm no, nws yuav tsis zoo rau lwm zaus. Yog hais tias muaj me ntsis yuam kev nyob rau hauv ib tug ntau voltage, ces qhov zoo thiab tsis zoo polarity yuav yog tib grey scale. Yuav muaj qhov sib txawv ntawm qhov hluav taws xob, thiab ntawm chav kawm grey nplai xav txawv, raws li qhia hauv daim duab 2. Nyob rau hauv cov ntaub ntawv ntawm tas li hloov cov ntxaij vab tshaus, Flicker tshwm sim yuav tshwm sim vim qhov hloov pauv ntawm cov ntxaij vab tshaus zoo thiab tsis zoo. Txoj kev hloov pauv polarity ntawm lwm cov vaj huam sib luag, txawm hais tias yuav muaj qhov tshwm sim Flicker no, tab sis vim tsis zoo li lub thav duab-los ntawm-nce qib inversion, lub polarity ntawm tag nrho cov tshuaj ntsuam tau hloov nyob rau tib lub sijhawm. Tsuas muaj ib kab lossis ib kab xwb, thiab txawm tias ib qho kev hloov pauv ntawm polarity. Raws li tib neeg lub qhov muag muaj kev txhawj xeeb, nws yuav tsis pom tseeb.
Qhov tshwm sim hu ua Crosstalk yog hais txog qhov nruab nrab ntawm cov ntsiab lus uas nyob ib sab, cov ntaub ntawv uas yuav tsum tau nthuav tawm yuav cuam tshuam rau lwm tus, yog li qhov kev tshuaj ntsuam pom yuav tsis raug. Txawm hais tias muaj ntau yam ua rau Ctosstalk tshwm sim, tsuav yog qhov polarities ntawm cov ntsiab lus nyob ib sab sib txawv, qhov tshwm sim ntawm qhov tshwm sim tuaj yeem raug txo.
Lub hauv paus ntsiab lus ua haujlwm ntawm TFT kua siv lead ua zaub:
Yuav ua li cas TFT ua hauj lwm TFT yog cov ntawv luv ntawm "Thin Film Transistor", feem ntau yog hais txog nyias zaj duab xis kua siv lead ua zaub, tab sis qhov tseeb yog hais txog nyias zaj duab xis transistors (matrix) - tuaj yeem "qhib" ntawm qhov screen ntawm txhua tus kheej pixel tswj, qhov no yog qhov Keeb kwm ntawm lub npe hu ua active matrix TFT (active matrix TFT). Yog li cas raws nraim cov duab tsim? Lub hauv paus ntsiab lus tseem ceeb yog qhov yooj yim heev: lub vijtsam zaub yog tsim los ntawm ntau pixels uas tuaj yeem tawm lub teeb ntawm txhua xim, thiab lub hom phiaj tuaj yeem ua tiav los ntawm kev tswj txhua pixel kom pom cov xim sib xws. Hauv TFTLCD, backlight technology feem ntau yog siv. Txhawm rau kom tswj tau cov xim thiab ci ntsa iab ntawm txhua pixel, nws yog ib qho tsim nyog yuav tsum tau nruab ib lub shutter zoo li hloov tom qab txhua pixel. Thaum lub "qhov muag tsis pom kev" qhib, lub teeb tuaj yeem dhau mus, thiab "qhov muag tsis pom kev" "Thaum nws raug kaw, lub teeb tsis tuaj yeem dhau mus. Tau kawg, technically, nws tsis yooj yim li qhov uas nyuam qhuav hais.
LCD (Liquid Crystal Display) siv cov yam ntxwv ntawm cov kua siv lead ua kua (kua thaum rhuab, thiab crystallized rau hauv cov khoom thaum txias). Feem ntau, cov kua siv lead ua kua muaj peb hom:
Cholestic kua siv lead ua kua
Nematic kua siv lead ua zoo li lub matchstick zoo
Smectic kua siv lead ua zoo ib yam li av nplaum
Cov kua siv lead ua kua siv cov filaments, thiab thaum ib puag ncig sab nraud hloov pauv, nws cov qauv molecular kuj yuav hloov, thiab yog li muaj cov khoom sib txawv ntawm lub cev - nws tuaj yeem ua tiav lub hom phiaj ntawm kev cia lub teeb los ntawm kev thaiv lub teeb - uas zoo li cov qhov muag tsis pom tam sim no.
Txhua leej txhua tus paub peb lub ntsiab xim, yog li txhua pixel ntawm lub vijtsam zaub xav tau peb lub ntsiab lus zoo sib xws uas tau piav qhia saum toj no los tswj peb xim liab, ntsuab, thiab xiav feem.
Qhov feem ntau siv ib qho yog twisted nematic TFT LCD (Twisted Nematic TFT LCD). Cov duab hauv qab no piav qhia txog txoj hauv kev ua haujlwm ntawm hom TFT LCD no. Cov thev naus laus zis uas twb muaj lawm sib txawv heev, thiab peb yuav nthuav dav lawv hauv qhov thib ob ntawm kab lus no.
Muaj grooves nyob rau sab sauv thiab qis txheej. Cov grooves nyob rau sab sauv txheej yog teem rau longitudinally thiab cov grooves nyob rau hauv qis txheej yog teem horizontally. Cov txheej hauv qab yog teem rau horizontally. Thaum tsis muaj qhov hluav taws xob siv, cov kua siv lead ua kua yog nyob rau hauv lub xeev ntuj, thiab lub teeb tawm los ntawm lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm daim duab twisted nematic TFT zaub hauv daim duab 2a tom qab dhau los ntawm interlayer yuav twisted los ntawm 90 degrees, yog li ntawd nws yuav dhau mus. los ntawm cov txheej txheem qis dua.
Thaum ib qho hluav taws xob raug siv ntawm ob txheej, ib qho hluav taws xob yog tsim. Nyob rau lub sijhawm no, cov kua nplaum ua kua yog ua raws vertically, yog li lub teeb yuav tsis raug twisted - qhov tshwm sim yog tias lub teeb tsis tuaj yeem dhau los ntawm cov txheej txheem qis.
TF:
Cov xim lim tau muab faib ua peb hom: liab, ntsuab thiab xiav raws li lawv cov xim. Lawv tau teem rau ntawm iav substrate los tsim ib pab pawg (dot pitch) sib haum mus rau ib pixel. Txhua lub lim dej monochromatic hu ua sub-pixel (sub-pixel). ). Hauv lwm lo lus, yog tias TFT zaub txhawb kev daws teeb meem siab tshaj plaws ntawm 1280 × 1024, ces tsawg kawg yog 1280 × 3 × 1024 sub-pixels thiab transistors yuav tsum tau. Rau ib tug 15-inch TFT zaub (1024 × 768), ces ib pixel yog hais txog 0.0188 nti (sib npaug rau 0.30mm), rau 18.1-inch TFT zaub (1280 × 1024), nws yog 0.011 nti (sib npaug rau 0.28mm) Raws li peb txhua tus paub, pixels yog qhov txiav txim siab rau cov zaub. Qhov me me txhua pixel yog, qhov siab tshaj plaws daws teeb meem uas cov zaub tuaj yeem ua tiav yuav yog
Loj dua. Txawm li cas los xij, vim muaj kev txwv ntawm cov yam ntxwv ntawm lub cev ntawm cov transistors, qhov loj me tam sim no ntawm txhua pixel ntawm TFT yog qhov tseem ceeb {{0}}.0117 ntiv tes (0.297mm), yog li rau ib qho 15-inch zaub , qhov siab tshaj plaws daws teeb meem tsuas yog 1280 × 1024.
1. GF LCD npo
GF yog lub ntsiab lus ntawm "Glass Fine Colour". Tej zaum txhua tus neeg tsis paub txog GF LCD cov ntxaij vab tshaus, vim tias muaj cov khoom siv digital tsawg heev uas siv GF LCD cov ntxaij vab tshaus ntawm kev ua lag luam. Qhov tseeb, GF yog ib hom STN. Lub ntsiab feature ntawm GF yog tias nws lav lub zog noj. Qhov ci ntsa iab tau raug txhim kho nyob rau hauv qhov chaw ntawm qhov me me, tab sis GF LCD npo muaj qee cov xim cam.
2. STN LCD npo
STN yog cov ntawv luv ntawm "Super Teisted Nematic", uas belongs rau passive passive matrix LCD. Yuav luag tag nrho cov ntxaij vab tshaus LCD ntawm cov xov tooj ntawm tes dub thiab dawb yog ua los ntawm cov khoom siv no. Cov xim STN LCD npo yog ntxiv cov xim lim rau lub hauv paus ntawm monochrome STN LCD npo, thiab faib txhua pixel hauv monochrome zaub matrix rau hauv peb sub-pixels, thiab tso saib liab, ntsuab, thiab xiav los ntawm cov xim lim. Ntau yam xim, thiaj li ua tiav cov duab xim. Vim muaj kev txwv tsis pub dhau, tam sim no STN LCD npo muaj qhov siab tshaj plaws ntawm 65536 xim, thiab feem ntau ntawm cov khoom STN pom hauv khw yog 4096-xim STN cov khoom, yog li STN kuj hu ua "pseudo-xim".
3. TFT LCD npo
TFT yog cov ntawv luv ntawm "Thin Film Transistor", tseem hu ua "xim tiag". Nws belongs rau lub active matrix kua siv lead ua screen. Nws yog ib qho screen tsim ntawm nyias zaj duab xis transistors. Txhua ntawm nws cov kua siv lead ua pixels yog tsav los ntawm nyias zaj duab xis transistors. Tom qab txhua pixel, muaj plaub tus neeg sab nraud nyias nyias nyias nyias los tsav lub pixel kom tawm cov xim xim, uas tuaj yeem pom cov xim tiag tiag nrog 24 ntsis xim qhov tob. Hais txog kev daws teeb meem, TFT LCD npo tuaj yeem ncav cuag UXGA (1600 × 1200).
Qhov kev npaj ntawm TFT yog nco ntsoov, yog li nws yuav tsis rov qab mus rau nws thawj lub xeev tam sim ntawd tom qab tam sim no ploj mus, yog li kev txhim kho qhov tsis txaus ntawm STN LCD npo flicker thiab plooj, txhim kho cov nyhuv ntawm LCD npo qhia cov duab dynamic, thiab muaj peev xwm tso saib. Cov duab zoo li qub Ntau qhov tseem ceeb, zaj taw qhia ntawm TFT LCD npo yog tias lub sij hawm teb luv luv thiab cov xim yog ci, yog li nws tau dav siv hauv phau ntawv computer, DV thiab DC. Qhov tsis zoo ntawm TFT LCD yog tias nws siv zog ntau dua thiab raug nqi ntau dua.
4. OLED LCD npo
OLED yog lub npe luv ntawm "Organic Light Emitting Display", tseem hu ua organic teeb-emitting zaub. Nws siv cov thev naus laus zis organic teeb pom kev zoo, uas yog cov cuab yeej tshiab tshaj plaws. OLED zaub thev naus laus zis yog qhov txawv ntawm cov txheej txheem ua kua siv lead ua kua. Nws tsis xav tau lub teeb pom kev zoo. Hloov chaw, cov khoom siv nyias nyias txheej thiab iav substrates yog siv. Cov ntaub ntawv organic no yuav tawm lub teeb thaum muaj tam sim no dhau mus, yog li nws muaj lub kaum sab xis pom loj, thiab cov ntsiab lus ntawm lub vijtsam tuaj yeem pom meej ntawm txhua qhov kev qhia, thiab nws tuaj yeem ua tiav. Nws yog nyias heev, thiab OLED zaub tuaj yeem txuag lub zog, thiab hu ua "npau suav zaub."
Tab sis OLED tsis yog tsis muaj nws qhov tsis txaus. Vim tias nws tseem yog cov cuab yeej tsis paub tab, nws lub neej kev pab cuam luv luv ntawm theem no, thiab thaj chaw tshuaj ntsuam kuj me me.
Lub ntsiab nta ntawm TFT LCD npo:
5. TFD LCD npo
TFD yog lub ntsiab lus ntawm "Thin Film Diode". Vim yog lub zog siv hluav taws xob ntau thiab tus nqi siab ntawm TFT LCD cov ntxaij vab tshaus, uas ua rau tus nqi ntau ntawm cov khoom, EPSON tau tsim TFD thev naus laus zis tshwj xeeb rau cov xov tooj ntawm tes, uas tseem yog active Matrix LCD npo, txhua pixel ntawm LCD yog nruab nrog ib lub diode cais, txhua pixel tuaj yeem tswj tau tus kheej, kom txhua pixel yuav tsis cuam tshuam rau ib leeg, uas tuaj yeem txhim kho qhov kev daws teeb meem, thiab tsis muaj smearing Display dynamic duab thiab ci ntsa iab.
Hais txog kev ua tau zoo, TFD LCD cov ntxaij vab tshaus coj mus rau hauv tus account qhov zoo ntawm TFT LCD cov ntxaij vab tshaus thiab STN LCD cov ntxaij vab tshaus. TFD LCD cov ntxaij vab tshaus muaj qhov ci ntsa iab ntau dua li STN LCD cov ntxaij vab tshaus, thiab cov xim zoo nkauj dua. Nyob rau tib lub sijhawm, nws muaj zog ntau dua li TFT LCD cov ntxaij vab tshaus. Lub brightness tseem qis dua rau TFT LCD.
Nrog rau kev loj hlob ntawm TFT thev naus laus zis thaum ntxov xyoo 1990, cov xim LCD vaj huam sib luag tiaj tiaj tau tsim sai heev. Hauv tsawg dua 10 xyoo, TFT-LCD tau loj hlob sai rau hauv cov khoom siv loj, uas yog cais tsis tau ntawm nws qhov zoo. Cov yam ntxwv tseem ceeb yog:
(1) Cov yam ntxwv siv tau zoo: daim ntawv thov tsis tshua muaj hluav taws xob, tsis tshua muaj tsav tsheb, thiab txhim kho kev nyab xeeb thiab kev ntseeg siab ntawm kev siv khoom; vaj huam sib luag tiaj tus, lub teeb thiab nyias, txuag tau ntau cov ntaub ntawv raw thiab siv qhov chaw; Kev siv hluav taws xob tsawg, nws lub zog siv yog hais txog CRT zaub Ib feem kaum ntawm qhov ntawd, qhov cuam tshuam TFT-LCD yog txawm tias tsuas yog ib puas feem pua ntawm CRT, txuag hluav taws xob ntau; TFT-LCD cov khoom kuj muaj cov lus qhia tshwj xeeb, qauv, thiab qhov ntau thiab tsawg hauv cov koob, nrog rau ntau yam, siv tau yooj yim thiab yoog raws, kev saib xyuas, thiab hloov kho, yooj yim rau kev hloov kho, kev pab lub neej ntev thiab ntau lwm yam nta. Cov zaub ntau yam npog daim ntawv thov ntau yam ntawm txhua qhov kev qhia los ntawm 1 nti txog 40 ntiv tes thiab lub dav hlau loj loj. Nws yog ib tug puv-size zaub davhlau ya nyob twg; cov zaub zoo sib txawv los ntawm qhov yooj yim tshaj plaws monochrome cim cov duab rau siab daws teeb meem thiab siab xim fidelity. Cov yeeb yaj kiab qhia txog ntau yam kev qhia tshwj xeeb thiab cov qauv nrog lub teeb ci siab, qhov sib txawv siab thiab cov lus teb ceev; tso saib txoj kev muaj xws li saib ncaj qha, projection, pom-dhau, thiab reflective.
(2) Lub degree ntawm automation ntawm manufacturing technology yog siab, thiab cov yam ntxwv ntawm loj-scale industrial ntau lawm yog zoo. TFT-LCD kev lag luam thev naus laus zis tau paub tab, thiab cov khoom lag luam loj tau nce mus txog ntau dua 90 [ feem pua ].
(3) Daim ntawv thov ntau yog dav, thiab nws tuaj yeem siv tau ib txwm nyob rau hauv qhov kub thiab txias ntawm -20 degree rau ntxiv 50 degree . Qhov ntsuas kub qis ua haujlwm ntawm TFT-LCD tom qab kev kho kom muaj zog tuaj yeem ncav cuag 80 degree . Nws tuaj yeem siv los ua lub xov tooj ntawm tes, lub xov tooj ntawm tes, thiab lub vijtsam loj TV. Nws yog tag nrho-size video zaub davhlau ya nyob twg nrog kev ua tau zoo heev.
(4) Kev tiv thaiv ib puag ncig zoo: tsis muaj hluav taws xob, tsis muaj flicker, tsis muaj kev puas tsuaj rau tus neeg siv kev noj qab haus huv. Tshwj xeeb, qhov tshwm sim ntawm TFT-LCD e-phau ntawv yuav coj tib neeg mus rau hauv lub sijhawm ntawm cov ntawv tsis muaj chaw ua haujlwm thiab tsis muaj ntawv luam ntawv, ua rau muaj kev hloov pauv hauv tib neeg kev kawm, kev tshaj tawm, thiab sau txog kev vam meej.
(5) TFT-LCD yog ib qho yooj yim rau kev koom ua ke thiab txhim kho. Nws yog ib qho kev sib xyaw ua ke zoo tshaj plaws ntawm qhov loj-scale semiconductor integrated circuit technology thiab light source technology, thiab muaj peev xwm loj hlob ntxiv. Tam sim no, muaj amorphous, polycrystalline thiab monocrystalline silicon TFT-LCDs. Nyob rau hauv lub neej yav tom ntej, yuav muaj TFTs ntawm lwm yam ntaub ntawv, xws li iav substrates thiab yas substrates.
Lub TFT kua siv lead ua kua zaub yog tus cwj pwm los ntawm qhov ci ci zoo, qhov sib txawv siab, kev nkag siab zoo ntawm cov txheej txheem, thiab cov xim ci, tab sis nws kuj muaj qhov tsis zoo ntawm kev siv hluav taws xob thiab tus nqi siab. TFT LCD thev naus laus zis tau nrawm rau txoj kev loj hlob ntawm cov xov tooj ntawm tes xim cov ntxaij vab tshaus. Ntau lub cim tshiab ntawm cov xov tooj ntawm tes xim xim txhawb nqa 65536 cov duab xim, thiab qee qhov txawm tias txhawb 160,000 xim qhia. Lub sijhawm no, qhov zoo ntawm TFT qhov zoo sib xws thiab cov xim nplua nuj yog qhov tseem ceeb heev.
