Tsev > Xov xwm > Ntsiab lus

Tus Ua Hauj Lwm Txoj Kev Lom Zej Ntawm Quav Siv Khoom Ua Zaub Yeeb Caw (tshwj xeeb yog Cov Ciaj Sia).

Dec 20, 2017

Cov khoom siv organic electrolyte coj los siv rau cov khoom siv lead ua kua, kua siv ua kua siv lead ua lub thawv clamp ntawm ob daim iav, hauv cov dej ua kua siv nrog cov khoom me me, lub hom phiaj tseem ceeb yog ua kom muaj cov khoom siv ua kua ua kua, thiab tom qab ntawd ua tom qab ntsiav tshuaj pretreatment, cov kua siv lead ua kua molecules teem rau ntawm qhov chaw, raws li qhia hauv daim duab 9 qhia.

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Yog tias tsis muaj fais fab tuag, lub pob zeb ua kua siv tau yog pob tshab; Thaum cov hluav taws xob uas muaj qhov tsim nyog, vim anisotropy ntawm conductivity thiab permittivity ntawm cov kua qaub deg ua kua molecules, yuav tshwm sim hauv cov dej ntshiab ua kua, cov tshuaj ntxiv zog no hom kev kub ntxhov, uas tshwm sim los ntawm qhov muaj zog tawg ntawm teeb meem teeb,

Yog li cov kua siv lead ua kua ua rau turbid. Lub xeev no yog hu ua dynamic scattering, yog li cov kua siv lead ua kua ua rau lub cev sib thooj ntawm tus qauv hluav taws xob ntawm lub pob tshab. Qhov tseem ceeb tsis zoo ntawm cov hluav taws xob siv hluav taws xob ua kua hluav taws xob yog qhov sib txawv ntawm qhov sib txawv, thiab qhov ntug ntawm daim duab tsis meej vim hais tias muaj cua hlob nyob rau hauv lub tawg. Vim tias cov duab sib txawv ntawm kev ncua sij hawm sib txawv, cov duab gray txawv variation, vim yog lub koom tes ntawm cov khoom siv hluav taws xob hauv cov khoom siv ua kua txig ntawm cov neeg pluag zoo, siab zog noj, los qhia daim ntawv thov ntawm lub cuab yeej dav, lub neej ua haujlwm yog tsis ntev, yog li DS hom kua siv lead ua tam sim no muaj tsawg heev siv, tab sis nws yog hom kab ntaus ntawv tam sim no, thiab kua siv lead ua kua ntaus ntawv yog thawj cov tswv yim, lub kua siv lead ua lub sij hawm.


Taub nematic kua siv lead ua kua (TN - LCD). Hauv ob lub thaiv ntawm cov iav uas muaj iav substrate nruab nrab ntawm kev puv nplaum ntawm kwv yees 10 hli nematic kua siv lead ua (NP siv lead ua), kua siv lead ua los ntawm cov pob zeb, tiam sis lub cev ntev qis ntawm nruab nrab thiab qis dua substrate rau 90 degrees, ntawm cov kua siv lead ua kua nplaum yog qhov sib tw, txhawm rau ntawm lub thawv polarization ntawm polarizer thiab analyzer. Raws li qhia hauv daim duab 10.

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Thaum tsis muaj qhov hluav taws xob, qhov linearly polarized lub teeb los ntawm kua siv kua qaub cell, vim yog cov kua siv lead ua kua molecules ntawm cov kua qaub ua kua uas muaj 90 degree swb, kom qhov kev coj ntawm qhov teeb meem polarized teeb (lub teeb kev taw qhia) tig 90 degrees, lub polarizer thiab cov analyzer yog teeb tsa orthogonal, yog li lub teeb refraction polarizer los ntawm kev tawm lub cev tawm, uas tuaj yeem tau pob tshab. Yog hais tias cov kua siv lead ua kua muaj zog, NP LC yuav pib qeeb raws li cov lus fais fab, thaum cov hluav taws xob txaus txaus, cov kua siv lead ua kua molecules nyob hauv cov dej ua kua siv coj los ua kom haum raws li kev qhia ntawm cov hluav taws xob, lub TN kua siv lead ua xim 90 degree qhov muag pom, ploj los ntawm lub pob zeb ua kom siv tau los ntawm cov kab ua kom siv lub tshuab coj los ntawm polarization thiab polarizer xa cov kab xo ntawm txoj kab xo (polarizer). Vim tias cov gray dluab pom qhov ua tau lub zog ntawm qhov hluav taws xob (cim: hauv cov kua qia ntshav ntawm lub xauv dej, qhov dav hlau txawv ntawm analog DC qhov hluav taws xob), hluav taws xob lub zog thiab qhov no ua rau cov kua siv lead ua kua, inclined degree yog sib txawv, qhov no yog qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, thiab tau hloov dua siab tshiab rau kev hloov qhov muag pom, thiaj li ua tiav lub hom phiaj ntawm cov duab tso tawm, qhov no yog qhov tseem ceeb tshaj plaws ntawm cov dej ua kua siv ua haujlwm. Lub TN kua siv lead ua kua muaj li nram qab no:


(1) cov khoom siv hluav taws xob ntawm TN ua kua dej tsis thwj, yog li qhov kev cuam tshuam qhov kev sib tw yog loj heev thaum ua hauj lwm hauv dot matrix zaub. Feem ntau, nws tsuas yog tsim rau kev tsav tsheb zoo li qub los yog kev tsav tsheb khiav dynamic hauv plaub txoj kev. Tam sim no, qhov zoo tshaj plaws TN pab tau tsuas yog ua tau 8 ~ 16 tsav.

(2) qhov kev hloov ntawm electro-optic yog qeeb. Cov lus teb ntawm lub TN hom kua siv lead ua kua dej yog li ntawm 100ms, yog li nws tsuas yog siv rau qhov kev hloov ntawm txoj kev hloov qub los sis qeeb, uas tsis muaj peev xwm ua rau cov duab video TN kua ua kua.

(3) lub teeb kis tau thiab kaw tsis kaw. Tsuas yog cov nyhuv ntawm cov ntawv dub yog tiav, thiab cov lus ntawm cov lus dub tsis tau mus txog. Yog li ntawd lub sib piv tsis zoo tagnrho. Txawm hais tias TN kua siv lead ua los siv, nws tsuas yog siv rau cov khoom siv qib qis hauv cov kua siv lead ua kua. Xws li kua siv coj los ua kua, kua siv crystal cov cuab yeej, lub vev xaib, tshuab xam zauv thiab xov tooj dub thiab xim dawb, thiab lwm yam.

(4) Super nistatic kua Crystal display unit (STN).


TN electro-optical yam ntxwv ntawm cov kua siv lead ua kua tsis yog ntxhab, vim li ntawd nws daim ntawv thov tau raug txwv, tab sis qhov kev sim tau pom tias ntev li cov kua siv lead ua kua molecules yuav cuam tshuam cov tsoos N LCD ntaus tau tuaj yeem ua kom lub kaum kev nce, electro-optic cov khoom ntawm no hom gradient twist lub siab tshaj 90 degree, feem ntau hauv cov kua siv lead ua kua ntawm 180 ~ 360 degrees hu ua Supertwist nematic kua Crystal. Yuav kom tswj lub siab ntsig ntau dua li 90 degree, cov kua roj nematic kua muaj cov qauv ntawm qhov sib txawv, hu ua chiral nematic theem, chiral nematic theem yog doped nrog ob peb feem pua ntawm cov khoom siv zoo tib yam ntawm nematic kua siv lead ua molecules doped , sab laug los yog txoj cai los muab tag nrho cov qauv nematic nrog lub macro structural distortions xam qhov ntawd, raws li qhia hauv daim duab 11.

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Kev sim qhia tau hais tias thaum lub kaum sab xis yog 270 degrees. Electro-optical yam ntxwv curve steepness, tau txaus rau lub computer terminals thiab chaw ua hauj lwm cov khoom siv.