Tsev > Xov xwm > Ntsiab lus

Lub iav xaum ntawm cov kua siv ua kua ua li cas?

May 02, 2018

Tam sim no coj mus muag iav substrates mas 0.7 hli tuab thiab 0.6 hli, thiab yuav sai sai no nkag mus rau thinner (0.4mm) txheej txheem. Yeej, ib qho TFT-LCD vaj huam sib luag yuav tsum tau siv ob lub iav substrates los siv rau hauv qab phaj hauv qab iav substrate thiab xim xim (COLOUR LIM). Feem ntau, tus neeg muag khoom ntawm iav substrate yog li 1: 1.1 txog 1: 1.3 rau iav substrate mov ntawm lub LCD vaj huam sib luag cog cog thiab nws cov xim lim manufacturing cog. Lub iav substrate siv LCD yuav muab faib ua ob pawg: alkali iav thiab alkali dawb khob. Alkali iav muaj ob hom ntsev iav thiab nruab nrab silicate iav, uas yuav tsum tau siv hauv TN thiab STN LCD. Lub tuam txhab tseem ceeb yog cov Japanese niton (NHT), Asahi (Asahi) thiab nitrox central (Central iav), uas yog tsim los ntawm cov txheej txheem floating. Lub khob dawb ntawm alkali yog raws Alumino Silicate iav iav (SiO2, Al2O3, B2O3 thiab BaO). Tag nrho cov dej alkali hlau yog tsawg dua 1%, uas yog siv hauv TFT- LCD. Cov chaw tsim ua lag luam yog Corelle (Corning) lub tuam txhab hauv Teb Chaws Asmeskas, uas yog tsim los ntawm kev siv tshuaj tua kabmob (spillway melting process).

  

Muaj plaub tuam ntxhab, xws li Corelle thiab Japanese Asahi, uas muaj peev xwm muab luj loj LCD iav substrates, ntawm 51% ntawm cov lag luam yog nyob ntawm American Corelle, thiab Japanese Asahi occupies 28% ntawm kev ua lag luam, thiab tsuas yog ob leeg muab rau ntau tshaj 5 tiam ntawm cov kab ntau lawm, txawm hais tias iav substrates tsuas yog 6% -7% ntawm cov khoom ntawm TFT-LCD khoom. Tab sis cov tshuab oligopoly ua iav substrate khoom ua xoom faib khoom rau TFT-LCD ntws cov ntaub ntawv. Kev ntes zaj duab xis thiab lwm yam kev lag luam hauv TFT-LCD yog tsim los ntawm lawv tus kheej tsim nyog tau txais kev txhawb nqa tshwj xeeb thiab kev txhawb nqa.


Cov khoom ntawm lub iav qaum iav substrate yog nyob ntawm seb muaj pes tsawg leeg ntawm cov iav, thiab cov kab mob hauv cov iav cuam tshuam qhov thermal expansion ntawm lub iav, viscosity (lim, txhaws, pom, muag thiab taw tes), tshuaj lom neeg , kho qhov muag thiab hluav taws xob khoom ntawm ntau yam kev sib txuas thiab qhov kub thiab txias. Qhov zoo ntawm cov khoom yog cuam tshuam los ntawm lub tsho ntawm cov ntaub ntawv. Nws kuj yog nyob ntawm cov txheej txheem ntau lawm.


Nyob rau hauv daim ntawv thov TN / STN thiab TFT-LCD, cov khoom ntawm iav substrates muaj cov yam ntxwv deg, kub ua haujlwm, cov xim tsis haum thiab alkali hlau cov ntsiab lus, thiab cov nram qab no yog lub zog ntawm lub iav substrate siv TFT- LCD raws li nram no :


1. Taw qhov taw qhia (Hloov Point): raws li qhov ntsuas ntawm iav compaction, nws yuav tsum tau muaj siab kub hauv kev tsim cov txheej txheem ntawm LCD khoom.

2. Kev nqhis dej: rau TFT- LCD, cov lus qhia hauv phau ntawv yog qhov loj tshaj plaws ntawm kev ua lag luam tam sim no, yog li qhov me me ntawm qhov iav substrate yog, nws zoo dua tuaj yeem nqa thiab nqa.

3. Coefficient expansion coefficient: qhov no coefficient yuav txiav txim siab qhov kev sib txuas los yog kev qis ntawm cov khoom siv iav vim hloov hloov, txo qhov zoo dua qhov coefficient, kom lub thermal expansion thiab txias contraction ntawm lub vijtsam loj yuav raug txo kom qis tshaj.

  

Lwm cov yeeb yam ntawm lub cev muaj xws li cov khoom noj khoom haus, cov nplua nuj, lub zog ua haujlwm, kev kho qhov chaw, cov khoom siv hluav taws xob thiab cov khoom hluav taws xob, uas tswj tau raws li qhov kev xav tau ntawm tus neeg siv.


Nyob rau hauv tus txheej txheem ntawm cov khob iav tag nrho, lub tshuab tseem ceeb muaj peb qho: pub, ua daim ntawv thiab xa ua tiav. Kev pub mis nyuj siv tau yog kev tswj hwm los ntawm qhov zoo ntawm cov mis. Ua ntej, cov ntaub ntawv iav raug fused rau low viscosity thiab uniform iav yaj hauv cov kub siab melting rauv. Tsuas yog cov iav thiab tshuaj lom neeg ntawm cov iav yuav tsum muab suav hais tias, tab sis kuj yog cov iav khoom yuav tsum raug xam tias yog. Raws li qhov tsis hloov ntawm cov tshuaj lom neeg muaj pes tsawg leeg, qhov zoo tshaj plaws formula ntawm cov khoom siv raw yog xaiv kom txo cov kub ntawm iav, ua kom pom tseeb thiab ua kom pom tseeb ntawm cov iav, thiab ua tau raws li qhov xav tau ntawm daim ntawv thov. Cov phev nyiab nyias ua nyias cov txuj ci siv rau qhov loj me me, qhov ntom nti thiab qhov xav tau ntxiv ua thiab sib tsoo kom ncav cuag lub cev tshwj xeeb thiab kev siv tshuaj. Cov ncej tsim muaj cov txheej txheem ntawm iav splitting,

sib tsoo, tu thiab kho cua sov.


Txog rau tam sim no, nws muaj peb lub tswv yim tseem ceeb rau qhov ua rau iav substrates rau ntau cov lus qhia dav hlau, namely, floating method (Float Technology), Daim Npav Sab Hauv (Tshuav Kos) thiab txig txeej (Overflow Fusion Technology). "Floating method" tuaj yeem tsim caws pliav thiab thawv rau ntawm qhov chaw vim txoj kev sib raug zoo ntawm kab rov tav. Nws xav tau kev xav tau los ntawm qhov sib tsoo ntawm qhov sib txig, yog li cov peev nyiaj ntau dua nrog qhov zoo ntawm cov khoom iav dav dav (dav dav txog mus txog 2.5 meters) thiab muaj peev xwm loj (txog li 100 txhiab square meters hauv ib lub hlis); "phwj muas melting" yog ib qho tshwj xeeb ntawm qhov chaw. Nws yog tsim rau cov phom ultra-thin iav nrog cov thickness tsawg tshaj li 2 hli, tiam sis lub iav dav ntawm ntau lawm tsuas yog tsawg dua 1.5 meters, thiab cov muaj peev txheej tsawg dua. Cov floating method yuav tsim iav substrates haum rau txhua hom flat vaj huam sib luag, thiab txig melting txoj kev yog tam sim no tsuas yog thov kom zus ntawm TFT- LCD iav substrates. Cov txheej txheem hauv qab no peb tau piav qhia hauv qab no:


(1) Floating txujci:

Rau lub npe nto moo tshaj plaws ntawm iav tshuab tam sim no, kev cai lij choj system siv lub iav ointment nyob rau hauv lub cub tawg rau cov kua txaj ua kua. Vim tias qhov qis tsis txaus, lub thickness ntawm lub khob yuav raug tswj los ntawm kev siv lub phaj los yog pas nrig. Nrog rau qhov kev nce ntawm lub txaj ntawm lub txaj, iav muab tshuaj txhuam maj mam muab los rau hauv lub khob iav, thiab tom qab ntawd ces cov iav tau siv nrog daim qauv qhia. Cov phaj ca yog twv tawm thiab mam li ua tiav los ntawm kev ntuag thiab txiav.

 

Thaum cov phlaub thawm iav uas tsim los ntawm floating txujci, yuav tsum tau noj cov khoom noj iav, thiab daim iav xev (Ribbon) uas nkag mus rau hauv lub txaj yog txias txog 700 C. Lub viscosity ntawm daim iav yog txog 108 mooring (Poise; 1 mooring = 1g / cm. Sec), thiab tom qab ntawd ces tus menyuam yuav siv rub tawm iav los ntawm cov kua nplaum. Siv cov iav siv ua kom kub txog 850 degrees centigrade, thiab cov khoom siv thauj tub rog yog rub tawm sab nraud. Lub iav uas muaj ultra-thin ca yog kos los ntawm floating txujci, raws li muaj nyob hauv daim duab peb.


Lub tshuab ntab hom tshuab yog ua los ntawm kev siv cov kab rov tav, ces nws yog qhov yooj yim siv txoj hlua kabmob elongated kab rov tav kom tau cov kev cai uas yuav tsum tau ua. Lub ntsiab yog vim li cas lub floating method tsis lug siv ua ultra-thin ca iav nrog lub thickness ntawm tsawg tshaj 2 hli yog tias nws tsis tau raws li qhov yuav tsum tau nyiaj txiag. Piv txwv, thawj hnub ntawm cov tshuab floating txuj ci yuav ua tau raws li kev noj txhua lub hlis ntawm Taiwan tam sim no. Yog hais tias cov phaj ultra nyias iav uas ua los ntawm cov tshuab floating, nws yog feem ntau ua nyob rau hauv ib lub pob kiln tsis ntev (DayTank), yog li qhov zoo tshaj plaws tsim ntawm lub zom kiln tseem ceeb heev.


(2) Ntws qhov hauv kev:

Raws li deb li tshwj xeeb ultra-nyias phaj khob yuav tsum tau rau ib lub vaj huam sib luag tiaj tiaj yog kev txhawj xeeb, ntau ua siv rs siv lub nruam qhov kev tsim los ua tus qauv iav. Txoj cai siv lub homogeneous iav paste uas tsis muaj viscosity rau hauv qhov Slot Bushing qhov ua los ntawm platinum alloy, thiab siv lub zog ntawm lub ntiajteb txawj nqus thiab rub thiab qhov loj ntawm qhib ntawm lub puab los tswj cov thickness ntawm lub khob. Qhov kub thiab qhov loj ntawm qhov qhib qhov kev txiav txim seb lub iav tso tawm ua ke, thiab qhov loj ntawm lub qhov qhib thiab qhov qis tshaj tawm txiav txim siab iav tuab ua ke. Qhov kub faib faib cov warpage ntawm lub iav, thiab cov phaj ultra-thin phaj iav yog kos los ntawm cov txheej qhov kos duab raws li qhia hauv daim duab plaub.


Txoj kev khiav ntawm txoj kev tuaj yeem tsim 5 ~ 20 metric tons ntawm nyias phaj iav nrog cov tuab ntawm 0.03 ~ 1.1, vim platinum co tsis tuaj yeem ua dua txhua yam kev txhawj xeeb. Yog li, feem ntau ntawm cov molds ua los ntawm platinum alloys yog feem ntau saws, tab sis cov qhov dej ntws feem ntau deformed vim lawv sab nraud rog, ua rau inconsistency thickness thiab ntog flatness. Specification thov yog nws qhov kev poob haujlwm.


Txoj kev downhole yuav tsum tau txheeb rau hauv txoj kev taw qhia. Yog hais tias nws hloov mus rau txoj kab kev taw qhia, nws yuav ua rau kom sib cuag ntawm iav ntu thiab cov menyuam thiab lub xov tooj los ntawm txoj kev thauj mus los, uas ua rau muaj kev nce qib zoo heev. Tej kev txhawj xeeb ua rau kev tsim kho rau lub cub hluav taws xob yuav tsum tsim kom muaj tus qauv tsim, thaum lub qhov siab yuav tsum tau rau kev txhim kho yuav tsum raug xam tias yog tseeb, ua rau lub kauj ruam nyuaj dua thiab rov qhia cov nqi ntawm cov nroj tsuag.


(3) Tshaj tawm ntawm txoj kab:

Ntev ntev ntawm Fusion Twj raug siv los thauj cov iav fused iintment rau nruab nrab ntawm lub tso dej, thiab ces tus phwj ntawm ob qhov iav tsoos ointment tau siv coj los ua ke rau hauv cov phaj ultra-thin iav hauv qab cov twj.


Kev siv lub tshuab no yuav tsum tau qiv rau qhov pwm, yog vim li cas lub pob txha tuaj yeem yog muag nrog qhov teeb meem ntawm kev ua kom muaj kev ntxhov siab deformation, kev tswj ntawm lub raj mis ntawm lub raj mis thiab yuav ua li cas rau stabilize lub khob iav ua rau lub pas dej ua ke. Vim cov iav iav ua los ntawm lub tshuab molding ntawm kev txav melting, txheej txheem ntawm cov iav ntim yog txiav txim siab los ntawm qhov nyiaj ntawm iav, ruaj ntseg, theem, qhov chaw ntawm lub twj tso dej thiab cov extraction ntawm iav.


Cov txheej txheem dej ntws muaj peev xwm tsim tau ib lub khob loj iav substrate nrog ob chav thawj iav ntsa. Piv rau cov floating method (tsuas yog cov thawj ntawm cov zis iav) thiab cov dej ntws tawm (tsis tuaj yeem ua qhov iav iav), txoj kev sib tsoo lossis kev txhuam hniav yuav raug zam, thiab nws tsis tas yuav txhaj koob tshuaj thaum lub sijhawm kev tsim cov txheej txheem ntawm cov qauv vaj huam sib luag. Nws tau ua cov ntsiab lus ntawm ultra nyias phiab iav vim hais tias nws muaj qhov sib txawv ntawm cov iav thiab kev sib txuas ntawm cov kua nplaum los yog cov kua nplaum, los yog kev sib cuag nruab nrab ntawm qhov kev sib tsoo nruab nrab thiab cov nplaim dej.


Muaj cov txheej txheem nruj heev nyob rau hauv kev sib thermal stability, mechanical, hluav taws xob, kho qhov muag, tshuaj thiab lwm yam ntxwv, tsos loj thiab nto ntawm lub khob dawb ntawm alkali. Vim li no, txoj kab ntau lawm yog kho thiab qhov kev kawm lub sij hawm ntev, thiab lub khw tshiab xav koom nrog txoj kev pib ntawm kev lag luam.