Taw qhia rau TFT Substrate hauv LCD
Lub vaj huam sib luag tiav - LCD LCD LCD Chaw Vaj Huam Sib Luag, yog faib ua peb ntu CF ua ntu zus, CF txheej txheem txheej txheem lim thiab cov txheej txheem boxed. Ntu cov txheej txheem array yog dab tsi peb feem ntau hu tft iav substrate ntau lawm.
Lub substrate yog ib qho tseem ceeb tivthaiv ntawm tft - lcd vaj huam sib luag ntawm kev tswj hwm pixel hloov chaw thiab tsav tsheb. Kab lus no yuav hais txog cov qauv thiab muaj pes tsawg leeg ntawm TFT- lcd array substrate, cov yam ntxwv ntawm tft substrate ntawm LCD kev ua haujlwm.
1. Cov qauv thiab muaj pes tsawg leeg ntawm TFT substrate
Cov tub ntxhais tsav chav tsev ntawm TFT - LCD yog cov yeeb yaj kiab nyias nyias Yuav kom ua tiav txoj haujlwm no, TOW DayTrate Adopts ib multi- txheej qauv qauv tsim, nrog txhua txheej ntawm cov khoom thiab hluav taws xob ua si sib txawv.
Zuag qhia tag nrho, TFTS tuaj yeem muab faib ua ob pawg: Lub Rooj Vag Sab saum toj thiab cov qauv TEAM. Tam sim no, cov kev daws teeb meem tseem ceeb rau LCD Panels yog cov txheej txheem sib txawv thiab qhov tsim nyog rau cov txheej txheem loj, thiab haum} nplai pawg ntau lawm.
Nyob rau hauv ib tug raug 6 daim npog ntsej muag, hauv qab lub rooj loog tft substrate tsuas muaj cov ntu hauv qab no:
1. Iav Substrate
Raws li lub cev txhawb platform rau tag nrho cov array, nws muab lub tiaj thiab pob tshab.
Nws yog qhov yuav tsum tau muaj qhov txawv txav me me thiab me me hluav taws xob nthuav tawm coefficient kom ntseeg tau qhov tseeb ntawm cov zaj duab xis tso cai ua ntej thiab photbithography cov txheej txheem.
2. GATE electrode (GATE electrode)
Feem ntau, cov ntaub ntawv hlau (xws li mo, al, lossis alloys muaj) tau siv.
Los ntawm kev tswj hwm tus voltage thov rau lub rooj vag, ntawm - lossis tawm ntawm lub xeev TFT tau txiav txim siab, uas yog sib npaug rau "kev tswj hwm ntawm kev hloov".
3. Rooj vag insulator
Npog dua lub rooj vag, cov khoom siv nquag yog Sinx lossis sitio₂.
Its function is to electrically isolate, prevent the gate from contacting directly with the semiconductor layer above, and at the same time ensure that the gate electric field can effectively control the electronic movement of the semiconductor channel region.
4. Cov txheej (nquag txheej)
Qhov no yog qhov tseem ceeb ntawm TORFT kev ua haujlwm, feem ntau yog cov txheej txheem semiconductor thiab ib txheej tiv thaiv zoo:
Lub semiconductor txheej yog lub luag haujlwm rau cov cab kuj sib kis thiab yog lub cev tseem ceeb ntawm thaj av channel;
Ohmic kev sib cuag txheej yog siv los txo kev sib chwv tiv thaiv ntawm cov khoom thiab cov dej hluav taws xob thiab cov semiconductor thiab cov semiconductor thiab cov semiconductor thiab cov semiconductor thiab cov semiconductor thiab cov semiconductor.
Nyob rau hauv lub tft tam sim no - lcd kev lag luam,}- si (amorphous silicoductor cov khoom siv.
Tus -} Si TFT cov txheej txheem yog paub tab thiab muaj tus nqi tsawg. Nws yog feem ntau siv nyob rau hauv nruab nrab- thiab qis {{}} {lcd zaub zaub.
Txawm hais tias Electron kev musility ntawm - sil yog cov khoom siv tsawg, nws cov txiaj ntsig siab tau txais kev xaiv tsim rau TFT- LCD.
Amorphous Silicon A - si si s segram
Ntxiv rau -} si, muaj cov khoom tshiab xws li poly {}}}} lub hom phiaj zaub panels.
5. Tau qhov chaw thiab ntws
Muab faib rau ob sab ntawm cov txheej nquag thiab muaj cov khoom siv hlau.
Lub hauv paus tau txuas nrog cov kab kab thiab hloov cov lus qhia cov paib hluav taws xob voltage rau thaj chaw channel;
Cov dej ntws hluav taws xob txuas nrog lub pixel electrode thiab pauv cov teeb liab voltage rau cov kua siv lead ua cov chav ua kua.
6. Nruab nrab rwb thaiv tsev txheej (txheej dhau los, PVX)
Npog cov qauv traft, nws plays lub luag haujlwm ntawm kev tiv thaiv thiab cais.
Tiv thaiv ya raws, cov pa oxygen lossis kev ntxhov siab los ntawm kev ua kom muaj kev puas tsuaj los ntawm cov khoom lag luam thiab cov hluav taws xob tso hluav taws xob rau sab sauv hluav taws xob.
7. Pixel Electrode (1st ITO)
Ua los ntawm pob tshab coj cov khoom siv (feem ntau ito, indium tin oxide).
Txuas nrog rau lub ntws, siv cov ntaub ntawv teeb liab rau cov kua siv lead ua kua, thiab tswj hwm lub xeev kho qhov muag ntawm lub pixel.
8. Cov electrode electrode (2nd ito, CAV electrode)
Rov qab mus rau lub pixel electrode, feem ntau nws nyob ntawm lub iav sab saud substrate.
Daim teb hluav taws xob yog tsim ntawm cov electrode thiab pixel electrode, thiab ib qho kev ua tau zoo rau cov kua crystal molecules hloov lawv cov kev npaj, yog li ua tiav kev hloov kho ntawm lub teeb.
Qhia cov ntsiab cai ntawm tft - lcd
Nyob rau hauv tag nrho TFT substrate, tsheej lab ntawm cov khoom lag luam uas tsis ua tau yog npaj nyob rau hauv kab {{kem matrix. Lub rooj vis kab hauv txoj kab kev taw qhia yog lub luag haujlwm rau kev ua kom pom kev vam meej, thiab cov ntaub ntawv kab hauv cov kev taw qhia kem yog lub luag haujlwm rau kev xa cov paib hluav taws xob. Ntawm kev sib tshuam ntawm ob, ib tft thiab nws cov kua ua kua crystal pixel nyob. Thaum txhua pixel voltages yog sau thiab tswj kab los ntawm kab, tag nrho lcd vaj huam sib luag tuaj yeem tso duab ua tiav cov duab.
2. Ua haujlwm ua haujlwm ntawm TFT substrate hauv LCD
1. Txoj haujlwm ntawm TFT raws li hloov
Txhua tus pixel yog nruab nrog tFT, uas yog sib npaug rau lub tshuab hluav taws xob.
Thaum lub scan teeb liab ua yeeb yam ntawm lub rooj vag, tft yog muab rau, thiab lub voltage ntawm qhov chaw yog pauv mus rau qhov dej, thiab tom qab ntawd thov rau pixel electrode.
Thaum lub rooj vuaj teeb tau muab tshem tawm, lub tft tau muab tua thiab lub voltage ntawm lub sijhawm pixel yog tswj xyuas lub sijhawm ua kua ntawm cov kua leiental molecules.
2. Hloov nyob rau hauv kev qhia ua kua crystal molecules
Cov ntaub ntawv siv ua kua muaj hluav taws xob - cov nyhuv optical, thiab lawv cov molecules yuav tau rov ua dua hauv qab hluav taws xob.
Kev sib txawv feem ntau rau cov av nkos sib txawv, uas nyob rau hauv lem hloov pauv lub peev xwm ntawm cov kua crystal txheej rau lub teeb.
3. Kis thiab tswj lub teeb
Cov kua ua kua crystal yog cov qhaub cij ntawm lub khob sab sauv thiab qis dua iav substrates, thiab polarizer kuj tau npaj rau sab saud thiab sab saud.
Thaum kev qhia ua kua crystal molecules hloov, lub xeev polarization ntawm lub teeb hloov pauv kom haum, thiab kev hloov pauv kuj hloov tau tom qab dhau ntawm tus polarizer.
Nyob rau hauv txoj kev no, lub pixel lub teeb thiab tsaus kho tau tuaj yeem ua tiav los ntawm kev tswj hwm lub voltage ntau.
4. Kev sib xyaw nrog Backlight thiab cov xim zaub
LCD nws tus kheej tsis emit teeb, thiab lub teeb ci yuav tsum rau cov zaub los ntawm backlight module.
TFT Substrate txiav txim siab ntau npaum li cas lub backlight yog kis tau los ntawm kev tswj hwm cov kev hloov pauv ntawm cov kua crystal pixel.
Nyob rau tib lub sijhawm, txhua tus pixel yog them nrog liab, ntsuab, thiab xiav (RGB) cov xim lim dej. Los ntawm kev kho lub teeb kev hloov pauv ntawm peb lub sub - pixels, nws tuaj yeem sib xyaw kom tsim tau tag nrho- xim duab.
5. Tag nrho tsav txoj kev
Lub rooj vag kab yog scanned zuj zus, thiab cov paib kos yog loaded nrog voltages kem los ntawm kem.
Thaum luam tawm qee txoj kab, tag nrho cov tfts nyob rau hauv txoj kab ntawd tau qhib tib lub sijhawm, thiab cov hluav taws xob ntawm cov cim kos npe yog sau rau tus coj pixel.
Tom qab kab no tiav lawm, kab scan mus rau kab tom ntej mus txog rau tag nrho cov tshuaj ntsuam tau rov ua haujlwm.
Tus txheej txheem no ntawm siab - ceev lub voj voog tuaj yeem tsim cov duab txuas ntxiv ua kom txuas ntxiv.
3. Tus cawv ntawm TFT Substrate ntawm LCD Performance
Raws li cov tub ntxhais tsav tsheb txheej ntawm lcd panels, tft substrate yog cov khoom siv hluav taws xob xws li daws teeb meem tseem ceeb, ci, kev noj haus, kev siv fais fab thiab lub neej. Cov hauv qab no piav qhia nws los ntawm ntau qhov tseem ceeb.
1. Daws
Iav Substrate: Lub siab dua saum npoo av, qhov zoo dua cov duab raug ntawm Pixel Electrodes thiab Tas cov lus zoo me me thiab yog li txhawb kev daws teeb meem ntau dua.
Nquag txheej (ib {- pa): lub tshuab hluav taws xob ntawm - Si yog tsawg (0.3-1 cm Thaum lub pixel ntom nce, {5 5}} si yog nyuaj rau kev txhim kho sai sai, thiab kev txhim kho daws teeb meem daws teeb meem yog txwv. Yog tias LTPS lossis Oxide TFT yog siv, txheej txheem nquag muaj zog yog siab dua thiab cov zaub ntawm ntau dua PPI tuaj yeem ua tiav.
Hlau cov kab (rooj vag, qhov chaw thiab dej thiab tawm hauv electrid): lub lw kev tawm tsam cuam tshuam rau pixel qhib tus nqi. Siab kuj hlau rog cov kab mus rau qhov dav, yog li nyob thaj tsam pixel thiab txo cov kev daws teeb meem; Kev tiv taus qis dua cu tuaj yeem xa cov cim ntawm kab ntawv me me thiab txhim kho pixel siv.
2. Brightness thiab kev hloov pauv
Pixel electrode (Ito): lub teeb kev hloov pauv thiab tiv thaiv ito txiav txim siab tus nqi ntawm lub backlight. High teeb kev hloov siab tuaj yeem nce kev ua tau zoo ntawm lub teeb dhau ntawm cov pixels los ntawm kev faib tawm ntawm cov cim ntawm loj- cheeb tsam pixels pixels.
Tau qhov twg los thiab tso cov hlau nplaum: yog tias cov kab yog qhov dav dhau, txo qhov chaw sib kis lub teeb (txo cov nqi qhib hloov) CU yog siv hloov Al, uas tuaj yeem txo qhov dav dav thaum txo cov kev tiv thaiv, yog li nce tus nqi qhib.
RSULATING Txheej (Sinx, Sio₂): Cov yam ntxwv ntxhov siab ntawm insulating cuam tshuam rau kev ua kua Crystal Molecules. Yog tias cov nplaim hluav taws xob tsis sib xws, nws yuav ua rau kev sib txawv ntawm cov kua muaju ua kua, yog li kev hloov kho qhov hloov tshiab.
3. Zoo li thiab grayscale kev ua tau zoo
Nquag txheej (ib {- SI2: Hloov cov piv ntawm TFT yog cuam tshuam los ntawm cov khoom. Lub kaw lus hloov piv ntawm - SI tau qis, ua rau muaj lub teeb me me kom tsim kom muaj lub teeb ci me me hauv lub teb dub, txo qhov sib piv.
RSULATING Txheej (Sinx, Sio₂): Lub Siab - Cov Khoom Siv Pixel Cov Khoom Siv thiab Txhim Kho Cov Khoom Muag Grayscale Ruaj Khov.
Pixel electrode (Ito): Qhov kev sib txuam ntawm cov tsis kam ntawm ITO zaj duab xis txheej yuav cuam tshuam rau cov voltage muaj kev sib xws ntawm cov pixels sib txawv ntawm cov pixels sib txawv. Yog hais tias tus nqi tiv taus tsis ncaj, nws yuav ua rau muaj kev sib txawv ntawm cov grayscales hauv zos, txo cov kev sib txuam thiab sib piv tag nrho.
4. Cov nyhuv ntawm kev teb ceev
Cov txheej nquag (ib {{- si- paab txav nrawm, uas tsis haum rau cov ntawv thov siab tshiab. Qhov siab muaj peev xwm ntawm LTPS lossis Oxide Tft tuaj yeem luv lub sijhawm teb.
Cov kab hlau hlau: Cov kab mob siab dhau yuav ua rau lub teeb liab kis tau thiab cuam tshuam rau kev teb pixel. Kev siv ntawm qhov qis - Tsis kam muab cov ntaub ntawv tuaj yeem txo qis kev ncua sij hawm thiab txhim kho kev teb kom ceev.
Parasiticic capacitors (txiav txim siab los ntawm cov hlau txheej thiab rooj vag rwb thaiv tsev): Thaum siv sijhawm ntev dua los them lub pixel ntau dhau Tsim nyog tsim qauv qauv thiab kev ua kom zoo ntawm rwb thaiv tsev txheej txheej tuab pab txo cov parasitic capacitance.
5. Qhov cuam tshuam ntawm kev siv fais fab
Tau qhov twg los thiab tso cov hlau (AL, MO, CU): Cov khoom siv tsis tshua muaj kev sib kis tau thiab siv hluav taws xob. Vim tias nws cov kev tiv thaiv qis, CU tau pom tseeb zoo hauv kev txo qis kev noj.
Nquag txheej (ib {- si tam sim no yog qhov loj me, thiab muaj zog dua tshiab, yog li ua kom muaj kev siv hluav taws xob ruaj khov.
Pixel electrode (Ito): Lub teeb hloov cov hluav taws xob hloov chaw tuaj yeem txhim kho lub teeb kev ua tau zoo. Nyob rau hauv tib lub ci ci yuav tsum tau, lub backlight lub zog tuaj yeem qis dua, yog li txo zog kev siv hluav taws xob.
6. Qhov cuam tshuam ntawm kev cia siab thiab lub neej
GATE hlau (al): Hill pawg (cov protrusions me me) tau yooj yim tsim ntawm cov hluav taws xob kub, ua rau muaj cov hluav taws xob luv luv, cuam tshuam rau ntev {}} lub sij hawm ruaj khov.
Cu hlau: txawm hais tias qhov tsis kam yog tsawg, nws muaj kev sib txawv. Yog tias tsis muaj teeb meem txheej, nws yog ib qho yooj yim kom paug cov txheej txheem semiconductor thiab ua rau kev ua haujlwm tsis zoo.
RSULATING Txheej (Sinx): Muaj peev xwm zoo thaiv kev nkag mus ntawm na ions, dej vapor thiab oxygen. Yog tias qhov loj yog tsis txaus, nws yuav ua rau cov khoom siv ua haujlwm kom poob sai.
Nquag txheej (ib {{- pa) drift muaj cov sijhawm ua haujlwm ntev, ua rau muaj kev ci ntsa iab thiab kev pab cuam tsis sib xws, thiab lub neej pabcuam luv luv.
Hauv kev ua haujlwm ntawm LCD, TFT substrate tsis tsuas yog txiav txim siab cov zaub cuam tshuam ntawm daim duab, tab sis kuj cuam tshuam ncaj qha, kev ci ntsa iab, kev siv hluav taws xob thiab kev ntseeg tau. Zuag qhia tag nrho, tft substrates tsis yog lub hauv paus ntawm LCD thev naus laus zis, tab sis kuj yog tus yuam sij rau kev txhim kho kev ua tau zoo thiab ua txoj kev txhim kho.
