Tsev > Exhibition > Ntsiab lus

Kev qhia txog cov kua siv lead ua kua

Jul 03, 2018

Kev qhia txog cov kua siv lead ua kua


Cov lus ntawm lub kua siv lead ua kua:

Cov kua siv crystal siv los ntawm LCD yog feem ntau hu ua kua Crystal mixed, uas yog ua los ntawm ntau cov tshuaj siv lead ua kua thiab cov neeg ua kab mob kis.

Cov yam ntxwv ntawm cov kua siv lead ua kua:

TN kua siv lead ua yog luv luv hauv cov khoom siv molecular thiab nyuaj kho nws cov cwj pwm tsis zoo. Tus Crystal kua Crystal yog ib qho qauv STN cov ntaub ntawv uas xam cov khoom siv lead ua kua molecular ntev thiab nws txoj kev ua hluav taws xob tsis ua haujlwm. Tom qab ntawd cov tshuaj synthesis ntawm ntau hom monomers nrog nyias molecular pawg nrog ntau cov sib txuas mus ua molecular txuas mus rau hauv cov kua kua muaj zog nrog cov yam ntxwv zoo sib xws. Sib txawv series ntawm cov kua Crystals feem ntau muaj sib txawv molecular saw. Yog li, ntau hom STN kua cov nplua nyeem tsis tuaj yeem faib rau lwm tus tshwj tsis yog lub khw muag khoom piav qhia rau lwm tus.

Cov kua siv lead ua kua roj nrog cov sib lawv liag thiab cov qauv qaum tsev los txiav txim siab yog qhov tsis muaj qhov sib luag ntawm cov kua qaub ua sib xyaw ua kua, thiab cov kua ua kua dej uas tsis muaj xim liab uas tsis pom kev ntawm cov roj ntsha. Lub isotropic isomerization ntawm monomers nrog polar pawg thiab tsis muaj ncov qaumteb qab teb tuaj yeem tshwm sim nyob rau hauv cov neeg mob zoo li qub.

Yuav kom nce lub sij hawm sawv ntawm lub tshuab thiab txhim khu lub peev xwm ntawm cov kua siv lead ua kua, lub chaw tsim hluav taws xob muaj peev xwm tsim tau cov khoom siv hluav taws xob qis uas muaj peev xwm ua tau raws li qhov tsis muaj zog thiab tsawg zaus. Nws muaj cov yeeb yam nram qab no:
Qhov tshwm sim ntawm isotropic isomerization ntawm monomers nrog polar pawg thiab tsis muaj ncov qaumteb qabteb nyob rau hauv ib qho qis threshold voltage kua Crystal yog luv.
Ntau lub tshuab monomeric nrog polar pawg kuj txhais tau tias cov kua nplaum ua tau yooj yim sib xyaw nrog dej lwg me thiab lwm yam ◆ dawb ions, yog li txo qhov tsis muaj cov kua kua, uas ua rau qhov nce ntawm cov khoom tam sim no thiab kev siv hluav taws xob.
Thaum lub tshuab roj carbon monoxide molecular tawg yog tshuab los ntawm ultraviolet radiation, cov roj ntsha molecular pawg tau yooj yim los ua ib pawg nruab nrab ntawm lub cev tsis zoo thiab ua ib qho kev tsis meej lub xeev, uas ua rau muaj qhov siab ntxiv rau qhov pib qhov siab, qhov kev txiav txim ntawm cov txheej txheem qhia thiab poob ntawm qhov qis dua kev tsav tsheb muaj peev xwm.


1. Hloov ntawm cov kua muaj kua:

Raws li cov hom zaub: TN LCD, STN LCD thiab HTN LCD.
Raws li cov ntsiab lus meej: LCD, LCD kub;
Qhov teeb meem hluav taws xob: kev sib tshuam muaj peev xwm low-LCD, zoo tib yam LCD, siab tshaj qhov hluav taws xob LCD.

2. Lub ntsiab lus tseem ceeb uas cuam tshuam rau kev ua tiav cov kua siv lead ua kua:

Cov ntsiab lus tseeb; refractive index Δ n ; Threshold voltage; huv; viscosity tas li K; Permittivity ε ; pitch ρ

3. Lub cev los ntawm cov khoom siv los soj ntsuam thiab cov qauv siv rau cov kua siv lead ua kua:

Resistivity: A, sim txujci: siv cov ntsuas cua siab los ntsuas cov nuj nqi ua cov kua siv ua kua los ntsuas.
B, kev txiav txim tus qauv: qhov kev kuaj ntawd yog nyob rau hauv cov khoom siv (peb lub Hoobkas txheem ntau tshaj 8 X 107).
Photoelectric zog: A, txuj kev sim: kev sim tshuaj tua kab mob, thiab kuaj nws cov khoom fais fab.
B, qhov kev txiav txim siab: Von thiab Voff qhov kev ntsuas ntawm kev kuaj mob yog ua tau raws li tus neeg tsis khoom. Lub kaum sab xis pom, qhov sib txawv, thiab tom qab muaj xim raws li kev xav tau ntawm ntau lawm.
Cov ntsiab lus tseeb: A, txuj kev sim: ntsuas cov kua siv ua kua ntsuas kom ntsuas, thiab ntsuas qhov kub thiab txias thaum nws ncav cuag lub teeb ci ntsa iab.
B, qhov kev txiav txim siab: qhov ntsuas kub ntawm kev ntsuas yog raws li qhov kub thiab txias ntawm lub chaw muag khoom.
UV ua haujlwm: A, txoj kev sim: kuaj cov kua siv lead ua kua raws li qhov khoom, sib tsoo ntawm tus foob nyob rau hauv UV tshuab, raws li UV siv thiab lub sij hawm muab los ntawm lub tshuab foob pov thawj ob zaug, sim qhov kev hloov qhov kev ntxhov ntxhuav ua ntej thiab tom qab irradiation.
B, judging standard: tom qab UV irradiation, tus nqi Voff nce nyob rau hauv 0.1V (low voltage liquid crystal nyob rau hauv 0.15V), qhov hloov ntawm tus nqi tam sim no tsawg dua 2 zaug, thiab qhov txawv ntawm qhov txawv tsis yog obviously tsim nyog.
Kev ntseeg: A, txoj kev sim: sim cov kua siv lead ua kua los kuaj thiab sim nws qhov kev ntseeg tau zoo.
B, qhov kev txiav txim siab: tom qab qhov kev ntsuam xyuas ntawm kev ntseeg, qhov kev hloov ntawm qhov kev tsim tau qhov txawv ntawm cov khoom muag yuav tsum hloov.

4, kev cai xaiv cov kua siv lead ua kua:

Raws li cov xim keeb kwm tom qab tus neeg muas zaub, xaiv qhov tsim nyog Δ n ntau ntawm cov kua siv lead ua kua, thiab tom qab ntawd raws li cov ntaub ntawv ntawm tus neeg IC circuit, xaiv qhov tsim nyog muaj ntau yam ntawm cov kua siv lead ua kua, raws li cov kua siv lead ua raws li cov saum toj no tej yam kev mob, siv qhov feem cuam tsim nyog, tuaj yeem ncav cuag tus neeg mob siab.

5. Siv cov kua siv lead ua kua:

Cov kua siv ua kua yuav tsum tau ua kom sov siab ua ntej siv, thiab kua siv lead ua kua nrog cov khoom sib xyaw ua ke yuav tsum muab ntxiv rau rau caum degrees centigrade thiab tom qab ntawd sai sai rau qhov chaw sov thiab kub siab. Tsis tas li ntawd, nws tsis tuaj yeem muab tso rau ntev dhau. Hauv particular, qis threshold voltage kua siv lead ua, vim tias cov qis nqes hluav taws xob ua kua muaj cov khoom siv sib txawv no, yog thaum siv cov kua muaj zog, peb yuav tsum them nyiaj rau cov nram qab no:
Cov kua siv lead ua kua yuav tsum ua kom sov siab ua ntej siv. Cov kua siv lead ua kua yuav tsum raug muab tso rau hauv ntau lawm, yog li ua kom lub sij hawm luv thiab tsis txhob tshwm sim ntawm chromatography.
Cov khoom siv ua kua ua piv yuav tsum tau muaj lub teeb, thiab nws yuav siv rau hauv chav kawm (yim xuab moos), thiab cov kua siv lead ua yuav tsum rov qab siv dua thiab tom qab siv cov kua siv lead ua kua. Feem ntau, qhov tsav tsheb khiav yuav nce ntxiv raws li lub sijhawm mus.
Thaum cov kua siv lead ua los ntawm lub raj mis, thawj lub raj mis yuav tsum muab ntim thiab khaws cia rau hauv lub sijhawm. Lub sij hawm uas raug rau saum cua yog ntev dhau lawm, thiab cov leakage ntawm cov kua siv ua kua yuav ntxiv.
Cov kua siv lead ua lub thawv uas muaj qhov sib tshau uas tsis tshua muaj siab yog qhov zoo tshaj plaws yuav tsum tau pleev ntawm PI rau cov kua siv lead ua kua, thiab lub thawv ntawv tsis pub dhau 25 teev.
Qhov siv qis taub ua kom tsis muaj zog yuav tsum tau npog qhov ntxoov ntxoo thaum uas muab khi ua ke, thiab cia kom deb ntawm qhov chaw ultraviolet kom deb li deb ntawm lub hnab ntim cov yas kom ruaj khov rau lub sij hawm tag nrho cov kua siv lead ua kua. Txwv tsis pub, yuav muaj ib qho phenomenon ntawm misalignment thiab muaj peev xwm ua rau muaj qhov ze ntawm UV.
Cov dej ua kua yog ib cov khoom siv organic polymer, nws yooj yim rau dissolve ntau cov kuab tshuaj los yog hnov mob nrog lwm cov tshuaj. Kev siv dej ua kua rau nws tus kheej kuj yog ib qho hnyav zoo, yog li peb yuav tsum ua tib zoo pov tseg los ntawm lwm cov tshuaj hauv kev siv thiab cia.

6. Ua kua dej qab ntsev cia thiab tuav cov hau kev:

Thaum cov kua siv lead ua kua, nws kaw lawm, ya raws thiab ua kom qis. Nws yog cia nyob rau hauv chav tsev kub thiab tsis tuaj yeem muab khaws cia thiab siv nyob rau qhov chaw kub tsis tshua muaj, kom tsis txhob muaj kev tsis tuaj yeem kho ntawm kev ua haujlwm. Nws tsis tuaj yeem tov nrog lwm cov tshuaj.
Lub sijhawm tuav, nws yog tswj hwm los ntawm cov cai tswj hwm tshuaj.

    

1.1.