Ib, Cov txheej txheem kev: Synergistic txwv ntawm cov kua siv lead ua molecule kev npaj thiab polarizer
1. Lub cev ciam ntawm twist lub kaum sab xis ntawm cov kua siv lead ua kua molecules
Qhov pom kev deb ntawm segmented LCD yog thawj zaug txwv los ntawm lub kaum sab xis ntawm cov kua siv lead ua kua molecules. Hom TN txais yuav ib tug 90℃twist qauv, uas muaj ib tug luv luv lub teeb deflection txoj kev, ua rau lub amplification ntawm me me deviations nyob rau hauv cov kev npaj ntawm cov kua siv lead ua kua molecules thaum pom los ntawm ib tug deb, ua rau cov xim distortion los yog ib tug txo nyob rau hauv sib piv. Piv txwv li, ib lub npe ntawm lub laij lej siv TN screen. Thaum pom los ntawm qhov deb ntawm 30cm, cov npoo ntawm cov lej yuav pom qhov muag plooj, tab sis lawv tuaj yeem pom meej hauv 15cm.
Hom STN txuas ntxiv qhov sib txawv ntawm qhov pom qhov sib txawv thiab nthuav dav qhov pom qhov deb mus txog 50cm los ntawm kev nce lub kaum sab xis mus rau 180-270 degrees. Txawm li cas los xij, qhov kev xav tau ntawm kev tsav tsheb rau STN yog qhov siab (feem ntau siab dua 5V), thiab nyob rau hauv qhov chaw tsis tshua muaj hluav taws xob, cov lus teb ceev ntawm cov kua siv lead ua kua molecules qeeb, ua rau ghosting thaum lub sij hawm ntev dynamic zaub. Piv txwv li, cov cuab yeej siv hluav taws xob siv STN screen, thiab thaum saib cov ntaub ntawv hloov pauv ceev ceev los ntawm qhov deb ntawm 1 meter, muaj 0.5 thib ob ncua sij hawm hauv digital hloov tshiab.
Hom FSTN qhia txog cov yeeb yaj kiab kho qhov muag kom tshem tawm cov teebmeem cuam tshuam, tso cai rau qhov pom kev deb tshaj 1 meter. Tab sis nws cov zaj duab xis them nyiaj yog rhiab rau lub kaum sab xis ntawm qhov teeb meem teeb. Thaum lub kaum sab xis soj ntsuam tshaj ± 90 degree, qhov nyiaj them poob haujlwm attenuates, ua rau txo qis hauv qhov ntev -ntau pom kev. Piv txwv li, qee yam khoom siv kho mob siv lub vijtsam FSTN, thiab thaum pom los ntawm qhov deb ntawm 1.5 meters, cov xim tom qab hloov los ntawm cov xim dub mus rau grey xiav, txo qhov sib piv rau hauv qab 100: 1.
2. Lub synergistic txwv ntawm polarizing zaj duab xis thiab tsav Circuit Court
Polarizing zaj duab xis yog lub hauv paus tseem ceeb ntawm segmented LCD kom ua tiav qhov sib txawv ntawm lub teeb thiab tsaus, tab sis nws qhov kev xa tawm yog inversely proportional rau qhov kev soj ntsuam deb. Kev xa tawm ntawm TN polarizing zaj duab xis tsuas yog 15%, thiab ntawm qhov deb ntawm 50cm, lub teeb attenuation ua rau tsis txaus cov teeb pom kev zoo; Hom STN siv ob - txheej polarizer tsim, uas ua rau kom muaj kev xa mus rau 30% thiab nthuav dav qhov pom qhov deb mus rau 80cm; hom FSTN siv lub siab transmittance polarizer (transmittance ntawm 45%), ua ke nrog qis - fais fab tsav Circuit Court (xws li 3.3V tsav ntawm GD32L233 MCU), kom muaj qhov sib piv ntawm 200: 1 nyob rau hauv qhov kev ncua deb ntawm 1 meter.
Cov lus teb ceev ntawm lub voj voog tsav ncaj qha cuam tshuam rau qhov ntev -kev ncua deb dynamic zaub nyhuv. TN hom tsav tsheb feem ntau muaj 4-8 channels thiab hloov tshiab zaus ntawm 10Hz nkaus xwb. Thaum saib xyuas cov ntaub ntawv hloov pauv sai ntawm qhov deb (xws li lub sijhawm nyob deb ntawm lub sijhawm pom ntawm lub laser rangefinder), cov kev hloov pauv digital yuav tshwm sim; Tus qauv FSTN txhawb nqa 16 tus tsav tsheb nrog qhov hloov tshiab zaus ntawm 50Hz, uas tuaj yeem ua tau raws li qhov xav tau ntawm cov khoom siv hauv 1 meter, tab sis tus nqi ntawm tus tsav nti nce 30%.
2, Zaub tsis: Dual constraints ntawm contrast thiab brightness
1. Kev sib raug zoo ntawm qhov sib txawv attenuation thiab pom qhov deb
Qhov sib piv yog qhov taw qhia tseem ceeb ntawm qhov pom kev deb ntawm ntu LCD. Qhov sib piv piv ntawm TN hom tsuas yog 10: 1, thiab ntawm qhov deb ntawm 30cm, qhov sib txawv grayscale ntawm cov lej thiab keeb kwm yav dhau tsis txaus, ua rau txo qis kev nyeem ntawv; Qhov sib piv piv ntawm STN hom yog nce mus rau 30: 1, thiab qhov pom kev deb yog txuas mus rau 60cm; FSTN hom siv cov cuab yeej ua yeeb yaj kiab them nyiaj txhawm rau nce qhov sib piv rau 300: 1, tso cai rau kev sib txawv ntawm cov lej thiab keeb kwm yav dhau los ntawm qhov deb ntawm 1 meter.
Cov ntaub ntawv ntsuam xyuas kev lag luam qhia tau hais tias thaum qhov sib piv sib piv yog qis dua 50: 1, qhov yuam kev ntawm cov neeg siv pom cov lej los ntawm qhov deb ntawm 50cm tshaj 10%; Thaum qhov sib piv piv yog siab dua 200: 1, qhov kev lees paub qhov ua yuam kev nyob rau hauv qhov kev ncua deb ntawm 1 meter poob qis dua 1%. Yog li ntawd, siab -kawg cov cuab yeej kho mob xws li cov pa oxygen concentrators feem ntau siv FSTN cov ntxaij vab tshaus los xyuas kom meej qhov tseeb ntawm kev nyeem tej thaj chaw deb.
2. Qhov kev ua si ntawm brightness attenuation thiab ambient teeb
Qhov ci ntsa iab ntawm segmented LCD ncaj qha cuam tshuam rau qhov ntev -ntau pom kev. TN hom ci ci yog feem ntau 150cd / m ², thiab nyob rau hauv ib puag ncig sab hauv tsev, qhov ci ci tsis txaus ntawm qhov deb ntawm 30cm; Tus qauv STN tau nce nws qhov ci ntsa iab rau 200cd / m ² thiab txuas ntxiv nws qhov pom qhov deb mus rau 80cm; tus qauv FSTN tau ua kom zoo dua nws qhov kev tsim teeb pom kev zoo (xws li LED sab nraub qaum) kom ua tiav qhov ci ntawm 250cd / m ², uas tuaj yeem ua tau raws li qhov xav tau ntawm sab nraum zoov lub teeb muaj zog hauv 1 meter.
Qhov cuam tshuam ntawm ambient teeb ntawm qhov pom kev deb ntawm ntu code LCD yog qhov tseem ceeb. Nyob rau hauv tshav ntuj ncaj qha, qhov sib piv ntawm TN screen txo mus rau 5: 1, thiab qhov pom kev deb yog luv rau 20cm; FSTN npo tswj qhov sib piv ntawm 100: 1 nyob rau hauv tshav ntuj los ntawm kev siv tshuaj tiv thaiv kev cuam tshuam, thiab nthuav dav qhov pom kev deb mus rau 50cm. Piv txwv li, ib qho khoom siv sab nraum zoov siv FSTN npo, uas tseem tuaj yeem tso saib cov ntaub ntawv kom pom tseeb nyob rau yav tav su hnub ci, thaum TN npo yuav tsum muaj lub teeb thaiv kev saib xyuas.
3, Ib puag ncig yam tseem ceeb: ua ke los ntawm qhov kub thiab txias, av noo, thiab poob siab
1. Qhov cuam tshuam ntawm qhov kub thiab txias ntawm cov lus teb ceev ntawm cov kua muaju
Kev khiav hauj lwm kub ntawm ntu LCD feem ntau yog -30℃~ +85℃, tab sis qhov kub thiab txias tuaj yeem cuam tshuam rau qhov pom kev deb. Ntawm qhov kub thiab txias (-20 degree), lub sij hawm teb ntawm TN hom kua siv lead ua kua molecules yog ncua ntawm 50ms mus rau 200ms, uas ua rau ncua kev hloov tshiab digital thaum lub sij hawm ntev -ntaus dynamic zaub; FSTN hom siv cov khoom siv ua kua kub kub (xws li MLC-2000 series) los tswj lub sij hawm teb ntawm -20℃nyob rau hauv 100ms, ua tau raws li qhov ntev-kev pom kev xav tau ntawm cov khoom siv hauv qhov chaw txias.
Nyob rau hauv qhov kub thiab txias (+70 degree), kev ua haujlwm ntawm cov kua siv lead ua kua molecules nce, tab sis qhov ruaj khov ntawm cov polarizers thiab kev tsav tsheb poob qis. STN cov ntxaij vab tshaus yog cov xim cam ntawm qhov kub thiab txias, txo qhov pom qhov deb mus rau 40cm; FSTN cov ntxaij vab tshaus tswj cov xim ruaj khov nyob rau hauv qhov kev ncua deb ntawm 1 meter los ntawm siab -kub resistant polarizing zaj duab xis (ua haujlwm kub +85℃).
2. Qhov cuam tshuam ntawm cov av noo thiab kev poob siab ntawm kev ntseeg tau ntawm cov duab
Cov av noo ib puag ncig (90% RH) tuaj yeem ua rau oxidation ntawm sab hauv electrodes ntawm segmented LCD, cuam tshuam rau kev sib kis ntawm kev tsav tsheb. TN hom tshuaj ntsuam txo qhov pom qhov deb mus rau 20cm hauv qhov chaw ntub dej; FSTN hom siv tshuab sealing (xws li IP67 qib kev tiv thaiv) kom txo qhov cuam tshuam ntawm cov av noo, thiab qhov pom ntawm qhov deb ntawm 1 meter tsis cuam tshuam.
Kev cuam tshuam cov tshuab (xws li 50m / s ² acceleration) tuaj yeem ua rau cov kua siv lead ua kua molecules misalignment thiab tso saib qhov txawv txav. Tom qab muaj kev cuam tshuam, STN npo xav tau 10 feeb los kho qhov pom kev deb; Hom FSTN txo lub sij hawm rov qab mus rau 1 feeb los ntawm kev ntxiv dag zog rau cov iav substrate (thickness 1.1mm), ua tau raws li qhov ntev -qhov kev pom kev deb ntawm cov khoom siv hauv kev vibration ib puag ncig.
4, Kev lag luam optimization lub tswv yim: thev naus laus zis hloov kho thiab daim ntawv thov scenario adaptation
1. Kev kho dua tshiab: Kev sib tsoo ntawm cov khoom sib txawv siab thiab dav dav
Txhawm rau kov yeej cov kev txwv ntawm kev pom kev deb, kev lag luam yog optimizing ob qho tib si cov ntaub ntawv thiab cov txheej txheem. Piv txwv li, los ntawm kev siv cov ntaub ntawv zoo sib xws ntawm cov kua siv lead ua kua (xws li MLC-6608 series), FSTN hom kev sib piv tuaj yeem nce mus rau 500: 1, ua cov lej hauv qhov deb ntawm 1.5 meters meej thiab nyeem tau; Kev siv cov khoom siv ua kua siv lead ua dav dav (ua haujlwm kub -40℃~ +105℃) ua rau segmented LCD kom pom qhov deb ntawm 80cm txawm nyob hauv qhov chaw huab cua.
2. Daim ntawv thov scenario adaptation: dynamic hloov thiab ntse them nyiaj
Kev lag luam tau tsim cov cuab yeej hloov pauv hloov pauv hloov pauv hloov pauv rau cov xwm txheej sib txawv. Piv txwv li, cov cuab yeej siv kho mob siv lub teeb pom kev zoo hauv lub teeb kom hloov kho lub teeb ci ntsa iab, ua kom pom kev nyob deb ntawm 1 meter; Cov cuab yeej muaj kev ua kom zoo dua cov kua siv lead ua kua hauv qhov qis - qhov kub thiab txias thiab nthuav dav qhov pom kev deb los ntawm qhov kub thiab txias algorithms.
3. Kev tshawb nrhiav lwm txoj kev daws teeb meem: Kev sib koom tes ntawm segmented code screens thiab dot matrix screens
Rau cov ntawv thov uas xav tau kev pom ntev ntev, xws li cov ntxaij vab tshaus tawm sab nraum zoov, kev lag luam tab tom tshawb nrhiav kev sib koom tes ntawm cov kab lis kev cai segmented thiab dot matrix cov ntxaij vab tshaus. Piv txwv li, siv FSTN ntu ntu code npo los tso saib cov ntaub ntawv tseem ceeb (xws li qhov kub thiab txias), ua ke nrog dot matrix npo los tso saib cov ntaub ntawv pabcuam (xws li daim ntawv qhia), cov tsis tseem ceeb tseem tuaj yeem txheeb xyuas kom meej ntawm qhov deb ntawm 10 meters.
