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Tsev > Xov xwm > Ntsiab lus
TFT-LCD Ntau Lawm Kev Ua
Apr 03, 2018

Kev tsim cov txheej txheem ntawm kev tsim ntawm TFT-LCD TFT-LCD muaj cov nram qab no: kev ua tus TFT array rau ntawm TFT substrate; sib sau cov xim lim xim rau xim lim dej substrate thiab ITO txheej txheej; sib sau ua kua dej siv nrog ob lub substrates; dhos lub rooj sib txig ntawm lub rooj sib txig ntawm lub voj voog thiab ntawm lub rooj sib txoos.

1. cov txheej txheem ntawm kev tsim TFT arrays rau ntawm TFT substrate tau tam sim no realised lub industrialization ntawm TFT hom: amorphous silicon TFT (a-Si TFT), polysilicon TFT (p-Si TFT), thiab monocrystalline silicon TFT (c-Si TFT ). A-Si TFT tseem yog qhov tseem siv rau lub sijhawm no. Cov txheej txheem tsim ntawm a-Si TFT yog thawj zaug ua kom lub qhov rooj khoom siv zaj duab xis rau ntawm lub thawv iav substrate, thiab tom qab tsim cov kab sib txuas ntawm daim npog thaiv tom qab daim npog ntsej muag, kev loj hlob thiab qhuav nqhis. Lub tshuab hluav taws xob raug siv rau hauv lub npog ncauj dav dav. Cov kauj ruam thib ob yog siv PECVD txoj kev los ua cov yeeb yaj duab tas li SiNx zaj duab xis, undoped a-Si zaj duab xis thiab phosphorus doped n + a-Si movie. Tom qab ntawd lub npog ntsej muag raug thiab ua rau cov neeg ua haujlwm qhuav tsim los tsim daim npav A-Si ntawm TFT. Qhov thib peb kauj ruam yog los ua cov ntaub electrode (ITO zaj duab xis) los ntawm kev ua yeeb yaj kiab xa duab, thiab tsim daim duab electrode txawv los ntawm lub npog ntsej muag thiab kev ntub dej ntub. Kauj ruam plaub yog kev siv lub npog ntsej muag thiab ua rau qhuav dej. Cov kauj ruam thib tsib yog kom ua AL thiab lwm yam yeeb yaj kiab, tom qab ntawd siv lub npog ntsej muag thiab ua rau lub hauv paus, qhov ntiav thiab cov teeb liab kab ntawm TFT. Thaum kawg, qhov thev naus laus zis los ntawm PECVD yog tsim los ntawm PECVD, thiab cov duab ntawm cov kab thaij khib nyiab yog tsim los ntawm lub npog ntsej muag thiab qhuav dej, uas yog siv los tiv thaiv lub qhov rooj thiab qhov xaus ntawm lub teeb hlua electrode thiab cov yeeb yaj kiab electrode. Txij ntawm no mus, tag nrho tus txheej txheem tiav. TFT array tshuab yog lub ntsiab ntawm TFT-LCD manufacturing txheej txheem, thiab nws tseem yog feem ntau cov cuab yeej ntawm cov khoom. Tag nrho cov txheej txheem yuav tsum tau ua tiav nyob rau hauv kev kho mob siab (xws li theem 10).

2. qhov xim ntawm cov xim uas xim ntawm cov xim lim (CF) substrate yog dyestuff, pigment dispersion, luam ntawv, electrodeposition thiab inkjet. Tam sim no, cov txheej txheem dispersion pigment yog lub ntsiab txujci. Thawj kauj ruam ntawm cov pigment dispersing txoj kev yog mus disperse tus nplua nplua particles (qhov nruab nrab particle loj tsawg tshaj 0.1 micron m) (R, G thiab B trichromatic) nyob rau hauv lub teeb duab photosensitive. Tom qab ntawd, lawv tau ua ke los ntawm R., G. thiab B cov qauv sib tw ntawm txheej, raug tawm thiab tsim. Photolithography technology yog siv los tsim, thiab cov cuab yeej siv tau yog cov txheej txheem, feem ntau thiab tsim khoom. Yuav kom tiv thaiv tsis tau lub teeb pom kev, feem ntau nrog rau ib qho dub matrix ntawm qhov kev txiav txim ntawm peb RGB (BM)

Nyob rau hauv lub dhau los, multi txheej sputtering yog siv rau ib txheej txheej hlau chromium zaj duab xis. Tam sim no tseem muaj BM BM los sis Crin reagent carbon resin. Tsis tas li ntawd, nws yog ib qho tsim nyog yuav tsum ua kom muaj kev tiv thaiv ntawm BM thiab tsim ib qho IT0 electrode, vim hais tias lub substrate nrog cov xim lim yog cov kua siv lead ua kua uas yog siv rau sab hauv plhaus lub lauj npov ntawm sab hauv thiab lub substrate nrog TFT. Li ntawd, peb yuav tsum tsom rau qhov teeb meem qhov teeb meem, kom txhua lub caij ntawm cov xim lim sib raug rau txhua txhua tus pixel ntawm TFT substrate.

Kev tsim cov txheej txheem ntawm cov dej ua kua dej yog thawj zaug siv cov duab zaj duab xis ntawm cov saum toj thiab sab substrates thiab los ntawm cov txheej txheem kev sib txuam los tsim cov yeeb yaj kiab uas yuav npaj tau los ntawm cov khoom cua hauv inducible raws li cov kev cai. Tom qab ntawd, cov ntaub ntim khoom tau muab tso rau ntawm TFT array substrate, thiab lub gasket tau txau rau hauv substrate. Nyob rau tib lub sijhawm, nyiaj muab tshuaj yog coated ntawm lub electrode pob tshab kawg ntawm CF substrate. Tom qab ntawd ob lub substrates sib raug ua ke rau ib leeg, yog li ntawd tus CF qauv thiab TFT pixel qauv yog mus raws ib ntawm ib qho, thiab tom qab ntawd ces cov khoom siv sib khi los ntawm kev kho kom sov. Thaum luam tawm cov khoom siv khoob, peb yuav tsum tawm hauv qhov chaw txhaj tshuaj mus nqus cov kua siv lead ua kua. Nyob rau hauv xyoo tas los, nrog cov kev kawm ntawm technology thiab nce ntawm qhov loj ntawm lub substrate, tus txheej txheem ntawm ua lub thawv tau kuj tau zoo heev. Nws yog ntau tus neeg sawv cev ntawm qhov kev hloov ntawm hom kev txhaws siv. Los ntawm thawj lub thawv mus rau hauv lub thawv, lub perfusion yog hloov mus rau ODF txoj kev, uas yog, lub khob cij ntsiag to perfusion yog synchronized nrog rau lub thawv. Dhau li ntawd, txoj kev ntawm gasket yog tsis siv tshuaj txau cov qauv, tab sis yog ncaj qha ua nyob rau hauv array los ntawm photolithography.

4. Ib qho kev sib tshuam, qhov sib dhos kev sib txeeb txheej txheem sib dhos ua ke, tom qab cov kua siv lead ua lub thawv ua tiav, ntawm lub vaj huam sib luag yuav tsum nruab ib lub tshuab hluav taws xob peripheral, thiab tom qab ntawd ces nyob rau ob sab substrate pasted ntawm lub ncov qaum. Nyob rau hauv cov ntaub ntawv ntawm kis LCD., Lub backlight tseem ntsia.


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