Dab tsi yog cov yeeb yaj kiab kho qhov muag thiab cov khoom siv kho qhov muag yog dab tsi?
Apr 25, 2022
Cov yeeb yaj kiab kho qhov muag yog qhov dav dav ntawm cov khoom siv kho qhov muag ntawm cov khoom siv zaj duab xis, feem ntau muab faib ua polarizer thiab backlight module (BLU) hauv cov yeeb yaj kiab kho qhov muag ob, cov ntawv thov tseem ceeb rau TFT-LCD LCD vaj huam sib luag, polarizer kuj tuaj yeem siv rau hauv OLED vaj huam sib luag. Vaj huam sib luag tsim muaj peev xwm txuas ntxiv hloov mus rau hauv av loj, ntawm ib sab, LCD LCD panels, tshwj xeeb tshaj yog loj-loj khoom peev kev loj hlob, tsav kev loj hlob ntawm optical zaj duab xis thov; ntawm qhov tod tes, qhov chaw hauv cheeb tsam ntawm polarizers kuj coj cov cib fim ntau dua.
Cov ntaub ntawv nyias nyias tuaj yeem muab faib ua cov yeeb yaj kiab ua haujlwm (zaj duab xis) thiab xaiv cov yeeb yaj kiab sib cais (membrane). Daim ntawv thov ntawm cov khoom siv ua yeeb yaj kiab ntawm cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob tau dhau los ua ntau thiab nrov nyob rau hauv ntau qhov chaw, tshwj xeeb tshaj yog cov yeeb yaj kiab nrog kev ua haujlwm kho qhov muag. Selective cais membranes yog attracting xim rau lawv siv nyob rau hauv kev lag luam kho dej.
LCD structural Cheebtsam
1. Kev faib tawm ntawm cov yeeb yaj kiab kho qhov muag: polarizers, optical films rau backlight module
Optical films yog coated los yog plated nrog ib los yog ntau txheej ntawm dielectric los yog metallic films los yog ua ke ntawm films ntawm optical Cheebtsam los yog ib tug neeg substrates los hloov cov yam ntxwv ntawm lub teeb, xws li lub teeb projection, reflection, absorption, scattering, polarization thiab theem hloov. Kev hloov pauv hauv kev xa tawm thiab kev cuam tshuam muab cov khoom sib txawv rau lub teeb hauv cov dav hlau sib txawv ntawm polarization.
Cov yeeb yaj kiab kho qhov muag tuaj yeem muab faib ua ob pawg: polarizers thiab backlight modules optical films, thaj chaw thov tseem ceeb yog TFT-LCD kua siv lead ua vaj huam sib luag. LCD feem ntau muaj cov kua siv lead ua kua, cov teeb pom kev zoo, cov iav substrates, polarizers thiab TFT electrodes thiab lwm yam tseem ceeb. Cov khoom siv ua kua siv lead ua kua muaj nyob rau hauv cov khoom siv vaj huam sib luag tiaj tus, nws cov qauv yooj yim yog ntau txheej vaj huam sib luag tiaj tus. Cov LCDs feem ntau yog tsim los ntawm cov kua siv lead ua kua, iav substrates, polarizers thiab TFT electrodes. Tau kawg, cov khoom siv LCD sib txawv yuav txawv ntawm qee qhov, tab sis tag nrho cov khoom siv LCD yog tsim los ntawm ob lub substrates nrog pob tshab conductive electrodes, sandwiched ntawm cov kua siv lead ua kua txheej, encapsulated rau hauv ib lub thawv tiaj tus, thiab tom qab ntawd mounted rau sab nrauv ntawm lub polarizer peb-txheej qauv. Ntawm lawv, backlight module optical zaj duab xis roughly muaj reflective zaj duab xis, diffusion zaj duab xis, zoo tib yam prism ntawv, multifunctional prism ntawv, micro-lens zaj duab xis, reflective polarization brightening zaj duab xis thiab lwm yam rau.
Tus nqi ntawm LCD vaj huam sib luag tuaj yeem tawg tau los qhia tias cov nqi khoom siv nyiaj ntau dua 70 feem pua ntawm tag nrho cov nqi tsim khoom ntawm LCD, tus nqi depreciation account rau 11 feem pua, cov nqi zog, cov nqi siv nyiaj, kev muag khoom thiab kev tswj xyuas tus nqi rau {{2 }} feem pua txhua. Backlight modules suav txog 18.2 feem pua ntawm cov nqi ntawm cov khoom siv, cov xim lim dej account rau 14.7 feem pua, polarizers account rau 9.5 feem pua thiab iav substrates account rau 8.9 feem pua.
Tus nqi ntawm cov yeeb yaj kiab ua kom pom kev ci ntsa iab, cov yeeb yaj kiab diffusion thiab cov yeeb yaj kiab hauv lub teeb pom kev zoo suav nrog 32 feem pua, 7 feem pua thiab 2 feem pua, nrog rau tag nrho ntawm 41 feem pua. TAC (triacetate) thiab PVA (polyvinyl cawv) cov yeeb yaj kiab yog cov khoom siv tseem ceeb hauv cov polarizer, suav txog 50 feem pua thiab 12 feem pua ntawm cov nqi feem.
2. Optical zaj duab xis yog ib qho tseem ceeb ntawm LCD backlight modules
LCD yog tam sim no cov cuab yeej paub tab tshaj plaws nyob rau hauv thaj tsam ntawm cov vaj huam sib luag vaj huam sib luag, feem ntau cov tuam ntxhab, cov khoom lag luam sib koom yog siab tshaj. LCD cov qauv peb-txheej txheej, cov kua siv lead ua kua txheej yog faib nrog ib tug xov tooj ntawm ntsug thiab kab rov tav cov xov hlau me me, kev siv hluav taws xob los tswj cov kev taw qhia ntawm cov kua siv lead ua kua molecules, refraction ntawm lub teeb los tsim cov duab.
Lub backlight module (BLU) yog cov khoom tseem ceeb uas muab lub teeb ci rau sab nraum qab ntawm LCD zaub. lub LCD vaj huam sib luag nws tus kheej tsis muaj lub teeb emitting zog, yog li ntawd lub teeb emitting qhov chaw yuav tsum tau ntxiv rau lub LCD vaj huam sib luag thiaj li yuav tso saib nws. Feem ntau hais lus, LCD backlight module yog tsim los ntawm qhov chaw teeb pom kev zoo, cov yeeb yaj kiab kho qhov muag, cov khoom siv nplaum, cov khoom siv rwb thaiv tsev, cov khoom siv yas thiab lwm yam khoom. Ntawm lawv, cov yeeb yaj kiab kho qhov muag yog ib qho tseem ceeb ntawm lub teeb pom kev zoo, raws li nws lub luag haujlwm tuaj yeem muab faib ua diffuser, reflector, lub teeb qhia phaj, prism ntawv, teeb pom kev, thiab lwm yam. ntawm LCD suav nrog cov vijtsam loj, siab txhais, siv LED backlight es tsis txhob CCFL backlight, ultra-nyias, dav xim gamut, kev txhawb nqa rau 3D zaub thiab kev txawj ntse, thiab lwm yam. Txawm li cas los xij, tsis muaj ib qho ntawm cov kev txhim kho no yuav hloov cov ntsiab lus ntawm lub teeb pom kev zoo thiab qauv ntawm LCD. Raws li qhov tshwm sim, LCD tau dhau los ua cov thev naus laus zis thev naus laus zis ntawm lub sijhawm los ntawm kev ua kom zoo dua ntawm nws qhov me me, lub teeb yuag, tsis muaj hluav taws xob, tsis muaj glare, tiv thaiv kev cuam tshuam, tiv thaiv kev vibration thiab lub kaum sab xis loj.
