Ib, Cov Txheej Txheem Txheej Txheem ntawm Polarizing Zaj Duab Xis Direction: Polarized Teeb thiab Kua Crystal Dimming Mechanism
1. Lub cev muaj zog ntawm lub teeb polarized
Lub teeb ntuj muaj cov khoom siv hluav taws xob kev co hauv ntau cov lus qhia, thaum polarizers cia tsuas yog lub teeb los ntawm ib qho kev taw qhia kom dhau los ntawm kev nqus lossis thaiv hluav taws xob kev co hauv cov lus qhia tshwj xeeb. Piv txwv li, yog hais tias tus kis tau tus mob axis kev taw qhia ntawm ib tug polarizer yog kab rov tav (X-axis), hluav taws xob kev co nyob rau hauv lub ntsug kev taw qhia (Y-axis) yuav raug thaiv tag nrho, tsim linearly polarized lub teeb. Cov yam ntxwv no yog lub hauv paus ntawm LCD zaub - ua tiav qhov sib txawv ntawm qhov ci thiab qhov tsaus ntuj los ntawm kev tswj qhov kev pom ntawm lub teeb polarized.
2. Dimming txoj cai ntawm cov kua siv lead ua kua molecules
Lub tsev tso saib ntawm qhov tawg code LCD yog tsim los ntawm ob lub polarizing zaj duab xis nyob rau sab saum toj thiab hauv qab, thiab cov kua siv lead ua kua hauv nruab nrab. Cov zaj duab xis polarizing converts lub ntuj lub teeb emitted los ntawm lub backlight rau hauv linearly polarized lub teeb, thiab cov kua siv lead ua molecules twist nyob rau hauv qhov kev txiav txim ntawm ib tug hluav taws xob teb, hloov lub polarization kev taw qhia ntawm qhov teeb meem teeb meem. Yog hais tias cov kev taw qhia twisted polarization phim cov kis axis ntawm sab sauv polarizer, lub teeb hla dhau yuav tshwm ci; Txwv tsis pub, nws yuav raug thaiv thiab tso tawm kom pom tsaus ntuj. Piv txwv li, hauv TN hom LCD, thaum tsis muaj lub zog, cov kua siv lead ua kua molecules twist 90 degree, ua rau cov kev taw qhia polarization tig 90℃thiab phim nrog lub polarizer sab saud los tsim lub xeev kaj; Tom qab raug them, cov kua siv lead ua kua molecules tau teem rau tib lub sijhawm, thiab cov kev taw qhia polarization tseem tsis hloov, tab sis lawv raug thaiv los ntawm sab sauv polarizer los ua lub xeev tsaus.
3. Cov tsis tseem ceeb ntawm polarizer kev taw qhia
Kev xaiv ntawm polarizer kev taw qhia yuav tsum xyuam xim rau cov nram qab no tsis:
Lub kaum sab xis kis tau tus mob: Feem ntau raws li 0℃(kab rov tav) lossis 90℃( ntsug), cov kab hluav taws xob ntawm cov yeeb yaj kiab sab saud thiab sab saud yuav tsum sib tshuam vertically (cov zaj duab xis polarizing hauv qab no yog 0 degree, thiab cov yeeb yaj kiab polarizing sab saud yog 90 degree).
Polarization efficiency: Lub polarization efficiency ntawm siab - zoo polarizers muaj peev xwm ncav cuag 99.9%, zoo thaiv lub teeb tsis transmissive thiab txhim kho qhov sib piv.
Transmittance: Qhov kev xa tawm ntawm ib qho polarizer feem ntau yog 42% -45%, thaum qhov kev sib txuas ntawm ob qho tib si polarizing yog li 18% -20%, uas cuam tshuam ncaj qha rau qhov ci ntawm lub vijtsam.
2, Kev xaiv logic ntawm polarizer kev taw qhia: daim ntawv thov scenario tsav tsim
1. Cov kev xav pom kev txiav txim siab txog kev teeb tsa
Lub kaum sab xis saib ntawm qhov tawg code LCD yog lub npe nyob rau hauv lub clockwise kev taw qhia (xws li 6: 00 saib lub kaum sab xis, 12: 00 saib lub kaum sab xis), thiab nws cov kev taw qhia xaiv yuav tsum tau raws li qhov kev siv scenario ntawm lub cuab yeej:
6: 00 foundations: haum rau cov xwm txheej uas cov cuab yeej muab tso rau hauv tiaj tus lossis tuav (xws li lub tshuab xam zauv, cov chaw taws teeb tswj). Nyob rau ntawm lub sijhawm no, kev sib kis ntawm cov polarizer qis yog 0 degree, thiab cov polarizer sab saud yog 90 degree. Qhov kev pom zoo tshaj plaws yog 60℃downward los ntawm qhov kev taw qhia ib txwm ntawm lub vijtsam (piv txwv li, 6 teev sawv ntxov).
12: 00 foundations: Haum rau cov xwm txheej uas cov cuab yeej tau teeb tsa hauv qab kab ntawm kev pom ntawm tib neeg lub qhov muag (xws li tsheb dashboards, elevator pem teb qhia). Kev sib kis ntawm cov polarizer qis yog 90 degree, thiab cov polarizer sab saud yog 0 degree. Qhov kev soj ntsuam zoo tshaj plaws yog 60℃upward los ntawm qhov kev taw qhia ib txwm ntawm lub vijtsam (piv txwv li kev taw qhia 12 teev).
9: 00 foundations: Haum rau scenes qhov twg cov cuab yeej nyob rau sab xis ntawm tib neeg lub qhov muag (xws li lub tsheb chaw tswj cov ntxaij vab tshaus, industrial tswj vaj huam sib luag). Kev sib kis ntawm cov polarizer qis yog 45 degree, thiab cov polarizer sab saud yog 135 degree. Qhov kev pom zoo tshaj plaws yog 60℃mus rau sab xis ntawm lub vijtsam ib txwm coj (piv txwv li 9 teev sawv ntxov).
Case: Ib lub tsheb dashboard yog tsim los nrog 12: 00 saib lub kaum ntse ntse, nrog rau qis polarizer kis axis ntawm 90℃thiab sab sauv polarizer kis axis ntawm 0 degree. Thaum tus neeg tsav tsheb ntsia rau ntawm qhov ntsuas vaj huam sib luag, lub teeb nkag mus rau hauv ib qho kev taw qhia ze rau qhov qub, thiab cov kev taw qhia polarization sib tw rau sab sauv polarizer, ua rau pom tseeb; Yog tias siv 6: 00 qhov kev xav, tus neeg tsav tsheb yuav tsum tau txo lawv lub taub hau kom pom, vim qhov nce ntawm qhov teeb meem ntawm lub teeb ua rau qhov sib piv.
2. Zaub hom cuam tshuam rau kev xaiv kev taw qhia
Cov qauv zaub ntawm LCD nrog cov lej tawg (xws li TN, STN, FSTN) muaj cov cai tshwj xeeb rau kev taw qhia ntawm polarizer:
TN hom: Cov axes xa mus rau sab sauv thiab qis polarizing films sib tshuam vertically (0℃/ 90 degree), tso saib daj ntsuab keeb kwm yav dhau thiab xiav cim. Yog tias tig 90℃(90℃/ 0 degree), nws yuav tso saib xiav tom qab thiab cov cim daj.
STN hom: Lub LCD twist lub kaum sab xis yog 180℃-270 degree, nrog siab dua qhov sib txawv thiab dav pom lub kaum ntse ntse. Feem ntau, hom grey (liab polarizer) lossis hom xiav (rotated 90℃grey hom) yog siv los tso saib grey tom qab xim, xiav cim lossis xiav tom qab xim, cov cim grey.
FSTN hom: Ntxiv cov yeeb yaj kiab them nyiaj raws li STN kom tshem tawm cov nyhuv birefringence thiab ua tiav cov duab dub thiab dawb. Kev xa cov axes ntawm cov yeeb yaj kiab sab sauv thiab sab hauv polarizing sib tshuam vertically, tso saib cov keeb kwm yav dhau los thiab cov cim dub, haum rau qhov kev xav tau zoo sib xws xws li cov cuab yeej kho mob thiab cov cuab yeej precision.
Case: Ib qho kev lag luam kub tswj tau txais FSTN hom, nrog rau kev sib kis ntawm 0℃rau qis polarizer thiab 90℃rau sab sauv polarizer. Cov nyiaj them nyiaj zaj duab xis optimizes brightness thiab xim hloov thaum saib los ntawm sab. Nyob rau hauv ib puag ncig lub teeb muaj zog, lub vijtsam tseem tuaj yeem tswj tau qhov sib txawv siab, kom ntseeg tau tias tus neeg teb xov tooj tuaj yeem nyeem cov txiaj ntsig kom meej.
3. Optimization Direction Design rau Environmental Light Conditions
Lub teeb pom kev nyob ib puag ncig yog qhov tseem ceeb rau kev xaiv cov kev taw qhia ntawm polarizers:
Transmitting LCD: haum rau qhov chaw tsaus ntuj (xws li cov cuab yeej siv thaum hmo ntuj), yuav tsum muaj lub teeb pom kev zoo. Cov polarizer qis dua tau txais kev tsim qauv nrog kev xa mus txog li 45%, thaum lub polarizer sab saud hla ntawm 0℃/ 90℃kom ntseeg tau qhov siab tshaj plaws backlight brightness.
Reflective LCD: Tsim nyog rau qhov chaw muaj teeb pom kev zoo (xws li cov cuab yeej sab nraum zoov), tsis muaj teeb pom kev zoo. Cov zaj duab xis polarizing txais ib qho kev tsim qauv, nrog lub ntsej muag diffuse daim iav npog qhov chaw, thiab qhia cov duab siv lub teeb pom kev zoo. Cov kev taw qhia ntawm kev sib kis axis yuav tsum tau ua kom zoo raws li kev soj ntsuam lub kaum ntse ntse (xws li hloov mus rau qhov chaw tshav ntuj ncaj qha ntawm 12:00).
Translucent thiab Reflective LCD: Sib npaug qhov tsaus ntuj thiab muaj zog lub teeb puag ncig, lub polarizer qis dua siv cov khoom siv pob tshab thiab ib nrab reflective nrog lub teeb xa mus txog li 20% -30%. Txoj kev tsim qauv yuav tsum sib npaug ntawm qhov sib npaug ntawm lub teeb xa rov qab thiab lub teeb pom kev nyob ib puag ncig (xws li siv lub 6: 00 saib lub kaum ntse ntse kom hloov mus rau sab hauv tsev thiab sab nraum zoov hloov chaw).
Case: Lub ntsej muag ntse txais lub ntsej muag LCD nrog lub axis kis ntawm 0℃rau qis polarizer thiab 90℃rau sab sauv polarizer. Nyob rau hauv ib puag ncig uas tsis muaj teeb pom kev zoo, lub teeb rov qab yog qhib nrog kev xa tawm ntawm 25% kom pom tseeb; Nyob rau sab nraum zoov lub teeb muaj zog ib puag ncig, lub teeb rov qab raug kaw, thiab lub diffuse reflector siv lub teeb pom kev zoo los tso saib lub sijhawm, nrog lub kaum sab xis ntawm 120 degree.
3, Kev Coj Ua Kev Lag Luam: Cov xwm txheej ntawm Polarizing zaj duab xis taw qhia kev xaiv
1. Automotive dashboard: 12:00 kev pom thiab FSTN hom
Qee lub tuam txhab tsheb tau txais kev pom 12: 00 thiab FSTN hom hauv dashboard tsim:
Kev taw qhia kev teeb tsa: Kev xa cov axis ntawm qis polarizer yog 90 degree, kev xa cov axis ntawm sab sauv polarizer yog 0 degree, thiab cov nyiaj them nyiaj zaj duab xis optimizes cov nyhuv sab.
Cov nyhuv: Thaum tus neeg tsav tsheb ntsia rau ntawm qhov ntsuas vaj huam sib luag, lub teeb nkag mus rau hauv kev taw qhia ze rau qhov qub, nrog qhov sib piv ntawm 500: 1; Ntawm ib sab saib lub kaum sab xis (± 60 degree), qhov sib piv piv tseem nyob saum 200: 1 kom paub meej nyeem cov ntaub ntawv hauv ntau txoj haujlwm zaum.
Kev ua kom zoo dua tus nqi: Los ntawm kev kho qhov ntau thiab tsawg polarizer (txo cov khoom pov tseg) thiab kev yuav khoom ntau, tus nqi ntawm ib tus polarizer yog txo los ntawm 15%.
2. Cov Khoom Siv Kho Mob: Siab zoo thiab Anti Reflective Design
Ib qho kev saib xyuas kho mob siv STN hom thiab tiv thaiv kev cuam tshuam polarizer:
Kev taw qhia kev teeb tsa: Kev sib kis ntawm qhov qis polarizer yog 0 degree, qhov kev sib kis ntawm sab sauv polarizer yog 90 degree, thiab saum npoo yog coated nrog AG (anti glare) txheej.
Cov nyhuv: Nyob rau hauv ib puag ncig lub teeb muaj zog (xws li chav ua haujlwm tsis muaj teeb pom kev zoo), AG txheej cuam tshuam lub teeb pom kev zoo thiab txo qhov cuam tshuam kev cuam tshuam; Qhov sib piv siab sib piv (800: 1) ntawm STN hom ua kom pom tseeb waveform zaub thiab txo tus nqi nyeem tsis raug los ntawm 30%.
Kev ntseeg tau: Polarizers tau dhau qhov ntsuas kub ntawm -40 ° ~ 85 ° C thiab hloov tau mus rau qhov kub hloov pauv hauv chav ua haujlwm.
3. Consumer Electronics: Ultra nyias tsim thiab dav saib optimization
Ib lub smartwatch txais yuav ultra-thin break code LCD thiab saib lub kaum ntse ntse polarizer:
Kev taw qhia kev teeb tsa: Cov kab sib kis ntawm cov polarizer qis dua yog 45 degree, thiab cov axis xa mus rau sab sauv polarizer yog 135 degree, ua ke nrog IPS thev naus laus zis (kab rov tav kev sib dhos ntawm cov kua siv lead ua kua molecules).
Cov nyhuv: Lub kaum sab xis saib mus txog 160℃(sab laug / sab xis / nce / nqis), thiab nws tuaj yeem tswj tau 80% ci ntsa iab txawm tias thaum qaij ntawm 45 degree; Lub thickness ntawm lub polarizer tsuas yog 0.1 hli, uas pab txo tag nrho cov thickness ntawm lub tshuab mus rau 9.8 hli.
Kev tswj hwm kev siv hluav taws xob: Kev tsim hluav taws xob txo qis kev siv hluav taws xob rov qab los ntawm 50% thiab txuas ntxiv ib zaug xwb roj teeb lub neej mus txog 15 hnub.
