Kodi Kusiyanitsa Pakati pa LED ndi Direct Luminescence Ndi Chiyani?
2023-01-07
Tianhui
56
Gwero la kuwala kwa LED kumbuyo kwa chigamba chowala ndikuwunikira kumbuyo komwe kumapangidwa ndi zowunikira zowoneka ngati madontho kumbali ya mbali ya mbale yapadera yowunikira. Njira yowongoka ya backlit backlight ndiyosavuta. Izo sizifuna kuwala kalozera bolodi. Ndiko kuyika gwero la kuwala (LED chip array) ndi PCB pansi pa nyali yakumbuyo. Kuwala kukawombera kuchokera ku LED Nembanemba imawombera mofanana. Yankho Lowonjezera: Pamene gwero la kuwala kwa LED likugwiritsidwa ntchito ku LCD yayikulu-kakulidwe, kulemera ndi mtengo wa bolodi lowongolera kuwala zidzawonjezeka ndi kukula, ndipo kuwala kowala ndi kufanana sikungakhale koyenera. Panthawi imodzimodziyo Chifukwa ma TV a LCD sangathe kukwaniritsa kulamulira kwachigawo kwa ma TV a LCD, amatha kukwaniritsa kusintha kosavuta kumodzi -kuwongolera kuwala, pamene kuwala kwa kuwala kwa LED kuli bwino. Itha kukwaniritsa kuwongolera kosinthika kwa LCD TV. Kuwala kwapambuyo kwapambuyo kumatha kukhala kocheperako kwambiri, koma mphamvu yogwiritsira ntchito kuwala kwa gwero la backlight ndi yaying'ono, ndipo kuchepa kwa magwiridwe antchito, kumachepetsa kuchuluka kwa ogwiritsa ntchito. Pakatikati pa teknoloji yake ndi kupanga ndi kupanga bolodi lowongolera kuwala. Pakali pano, pali mitundu iwiri ya kusindikiza ndi kuwombera mawonekedwe. Mu mawonekedwe a bolodi lowongolera, zina monga kuwombera kuphatikiza kusindikiza, madontho a laser, corrosion, etc., sizoyenera mfundo zopangira batch. Ubwino waukadaulo wowunikira kumbuyo ndi wapamwamba -mbiri, ngodya yabwino yowonera, kugwiritsa ntchito bwino kwambiri, mawonekedwe osavuta, ndi zina zambiri. Sungani malo pakati pa choyatsira magetsi ndi chowunikira cha LED kuti muwongolere kuwala. Chifukwa chake, kuyatsa kowongoka kumapangitsanso makulidwe, kulemera, komanso kugwiritsa ntchito mphamvu kwa module. Chifukwa chake Kuwala kwa backlight.
Lowani m'dziko la UV disinfection. Apa, muphunzira momwe njira yochedwera zachilengedwe imatsuka madzi. Dziwani momwe ma module a UV LED ndi ma diode amathandizira pa izi. Komanso, onani momwe ukadaulo wa UV umapindulira zopangira zimbudzi. Mwakonzeka? Tiyeni tiyambe.
Ultraviolet (UV) ndi ma radiation a electromagnetic omwe amagwera mkati mwa kuwala kowoneka bwino ndi ma x-ray. UV LED diode imagawidwa m'magulu atatu: UVA, UVB, ndi UVC. Kuwala kwa UVC, komwe kumakhala ndi utali waufupi kwambiri komanso mphamvu yayikulu kwambiri, kumagwiritsidwa ntchito kwambiri potsekereza chifukwa kumatha kupha kapena kuyambitsa tizilombo tambiri, kuphatikiza mabakiteriya, ma virus, ndi mafangasi.
Kutulutsa kwamphamvu kwamphamvu kwa UV LED diode ikukwera; zida zapamwamba za III-nitride pakali pano zimatulutsa 150 lm zoyera, zoyera, zobiriwira kapena zobiriwira. Tikambirana za kapangidwe kazinthu izi, kulabadira kwambiri ma CD amagetsi, zida zapa flip-chip, ndi umisiri wokutira wa phosphorous.
palibe deta
m'modzi mwa akatswiri opanga ma UV LED ogulitsa ku China
tadzipereka ku diode za LED kwa zaka zopitilira 22+, wopanga zida zapamwamba za LED & ogulitsa UVC LED 255nm265nm 275nm, UVB LED 295nm ~ 315nm, UVA LED325nm 340nm 365nm ~ 405nm