Ib, Lub ntsiab cuam tshuam mechanism ntawm qis -siab ib puag ncig ntawm LCD
Rau txhua 1000 meters nce nyob rau hauv qhov siab, atmospheric siab txo los ntawm 12%, thiab nyob rau ntawm qhov siab ntawm 5000 meters, lub siab tsuas yog 55% ntawm hiav txwv theem. Qhov cuam tshuam ntawm qhov kev hloov siab ntawm LCD yog qhov tseem ceeb hauv peb yam:
Attenuation ntawm tshav kub dissipation efficiency: Qhov txo qis hauv huab cua ceev ua rau 30% -50% txo qis hauv cov cua kub dissipation muaj peev xwm, thiab qhov kub ntawm lub teeb rov qab module nce los ntawm 10-15 degree, uas yuav ua rau theem hloov ntawm cov khoom siv lead ua kua lossis thermal deformation ntawm polarizer.
Hluav taws xob rwb thaiv tsev tsis muaj zog: Rau txhua txhua 100 meters nce nyob rau hauv qhov siab, lub rwb thaiv tsev tiv thaiv voltage txo los ntawm 1%. Ntawm 5000 meters, qhov kev ncua deb ntawm lub rooj tsavxwm PCB ib txwm xav tau nce 20% kom tswj tau qhov kev ua haujlwm zoo ib yam.
Sealing qauv kev ntxhov siab: Thaum qhov sib txawv ntawm sab hauv thiab sab nraud siab txog 50kPa, qhov tsis muaj zog LCD casing yuav raug 0.5 hli deformation, ua rau polarizer ntug tev lossis iav substrate tawg.
2, Kev xaiv cov khoom siv thiab cov txheej txheem optimization zoo
1. Kev hloov kho cov khoom siv ua kua siv lead ua kua
Los ntawm kev siv cov viscosity siab, qhov kub ntau ntawm cov kua siv lead ua kua sib tov (xws li MLC-7026 series), kev ua haujlwm kub tau txuas ntxiv mus rau -40℃rau +85 degree, thiab lub sijhawm teb tseem tsawg dua 200ms ntawm -20℃. Los ntawm kev ntxiv fluorinated alkyl saw molecules, lub dielectric tas li anisotropy ntawm cov khoom siv lead ua kua yog nce los ntawm 5.0 mus rau 7.5, ua kom lub zog hluav taws xob teb muaj peev xwm thiab them nyiaj rau qhov attenuation ntawm hluav taws xob teb lub zog tshwm sim los ntawm qhov tsis tshua muaj siab.
2. Polarizing zaj duab xis reinforcement kho
Siv TAC (cellulose triacetate) polarizer nrog lub substrate thickness ntau dua los yog sib npaug rau 120 μ m, nws tensile zog ncav cuag 120MPa, uas yog 40% siab dua li cov khoom siv. Siv epoxy resin nplaum nplaum (xws li EPON 828) ntawm ntug ntawm lub polarizer los ua ib daim kab xev 1 hli dav uas tuaj yeem tiv taus qhov sib txawv ntawm 50kPa yam tsis muaj tev.
3. Kev tiv thaiv txheej txheem
Muab 50nm tuab Al ₂ O3 passivation txheej rau saum npoo ntawm ITO electrode, thiab siv atomic layer deposition (ALD) technology los xyuas kom meej qhov ntom ntawm cov zaj duab xis txheej. Cov qauv no tuaj yeem txo tus nqi electrode corrosion mus rau 0.02 μ m / hnub thiab txuas nws lub neej kev pab mus rau ntau tshaj 8 xyoo nyob rau hauv ib puag ncig nrog qhov siab ntawm 5000 meters thiab 85% RH.
3, Cov qauv sealing thiab cua sov dissipation tsim
1. Cua siab ntsuas qhov system
Integrated micro breathable valve (xws li GORE-TEX membrane), nrog rau kev ua pa ntawm 1000ml / min · cm ², tuaj yeem sib npaug qhov sib txawv ntawm sab hauv thiab sab nraud hauv 10 vib nas this. Nruab 0.5mm txoj kab uas hla qhov cua ntawm lub LCD backplane, ua ke nrog cov plua plav lim (aperture Tsawg dua lossis sib npaug li 5 μ m), kom ntseeg tau tias huab cua sib npaug thiab tiv thaiv cov khoom nkag.
2. Txhim khu kev sealing qauv
Txais yuav dual O-ring sealing tsim: lub nplhaib puab yog ua los ntawm fluororubber (FKM, hardness 70Shore A), thiab lub nplhaib sab nrauv yog ua los ntawm silicone roj hmab (VMQ, hardness 50Shore A), tsim kev tiv thaiv dual. Hauv 5000 meter qhov siab simulation simulation, tus qauv tuaj yeem tiv taus qhov kub thiab txias ntawm -40℃mus rau +85℃thiab 1000 cycles yam tsis muaj to.
3. Ua kom muaj cua sov dissipation tov
Los ntawm kev siv lub tshuab nqus tsev kub cua kub dissipation tshuab, tooj liab dej kub kav dej (inch 6mm) tau muab tso rau hauv LCD backboards, nrog rau thermal conductivity ntawm 20000W / m · K, uas yog 10 npaug siab dua aluminium heat sinks. Ua ke nrog cov kiv cua ntse tswj qhov kub thiab txias, nws cia li pib thaum qhov kub siab tshaj 60 degree, thiab tuaj yeem tswj lub teeb pom kev zoo ntawm qhov kub hauv qab 75 degree.
4, Environmental adaptability xeem system
1. Tsis tshua muaj kev ntsuas kev ntsuas
Simulate qhov chaw siab tshaj ntawm 5000 meters (siab 54kPa) hauv chav ntsuas siab thiab ua 48 teev ua haujlwm tas li. Kev soj ntsuam tseem ceeb:
Kev ua tau zoo ntawm cov zaub: brightness attenuation Tsawg dua lossis sib npaug li 15%, qhov sib txawv sib txawv Tsawg dua lossis sib npaug li 20%
Cov tsis muaj hluav taws xob: Kev tiv thaiv hluav taws xob ntau dua lossis sib npaug ntawm 100M Ω, cov xau tam sim no Tsawg dua lossis sib npaug rau 0.5mA
Mechanical qauv: plhaub deformation Tsawg dua los yog sib npaug rau 0.2mm, khawm stroke variation Tsawg dua los yog sib npaug rau 0.1mm
2. Kev ntsuas kub ntawm lub voj voog cuam tshuam
Ua 20 lub voj voog ntawm kev sim nyob rau hauv thaj tsam ntawm -40℃rau +85℃(nrog rau qhov cua sov thiab cua txias ntawm ntau dua lossis sib npaug li 3℃/ min) kom paub tseeb:
Stability ntawm Theem Hloov Cov Ntsiab Lus hauv Cov Khoom Siv Ua Kua Crystal
Adhesive zog ntawm polarizer thiab iav substrate
Rebound kev ua tau zoo ntawm sealing nplhaib
3. UV ceev kev laus kuaj
Siv UVA-340 teeb (irradiation siv 0.68W / m ²), ua 1000 teev tas li irradiation xeem kom paub meej:
Polarized zaj duab xis transmittance attenuation Tsawg dua los yog sib npaug li 5%
Lub plhaub yas xim sib txawv Δ E Tsawg dua lossis sib npaug 3
Anti reflective txheej tiv thaiv lub kaum sab xis Ntau dua lossis sib npaug li 90 degree
5, Cov ntaub ntawv thov raug
Hauv kev saib xyuas ntawm lub chaw nres tsheb hydropower hauv Xizang, qhov ntsuas LCD nrog cov txheej txheem saum toj no tau ua haujlwm ruaj khov rau 3 xyoos. Cov cuab yeej no ua tiav:
Zaub brightness: 800cd/m² (tus nqi pib 950cd/m²)
Qhov sib piv: 1200: 1 (tus nqi pib 1500: 1)
Kev poob qis: 0.2 zaug / xyoo (kev lag luam nruab nrab ntawm 1.5 zaug / xyoo)
