Uphuhliso lweResin eKhanyisayo kwiShishini lokuPakisha iintambo ze-LED
Kwimimandla yokukhanyisa okukrelekrele kunye neentambo zokukhanya zokuhombisa, utshintsho lwetekhnoloji olukhokelwa zii-resin eziphilisa ukukhanya luchaza ngokutsha iphakheji yeetships ze-LED. Le nto intsha ayinyusi nje kuphela ukusebenza kakuhle kwemveliso, kodwa ikwabonisa neengenelo ezibalaseleyo ekongeni amandla kunye nokukhuselwa kokusingqongileyo.
Xa iintambo ze-LED zisanda kakhulu kwizibane zokuhombisa, ukukhanya kwendawo, kunye neenkqubo zokukhanyisa ezikrelekrele, imakethi ifuna ubuchwepheshe obuphezulu bokupakisha. Izixhobo ze-thermosetting zemveli ziye zatyhila kancinci imida efana nesantya sokucotha, ukusetyenziswa kwamandla amaninzi, kunye nokusebenza okuphantsi.
Ngoku, impumelelo yamva nje kubuchwepheshe be-resin yokunyanga ukukhanya—ingakumbi, ukusetyenziswa kwe-UV kunye neekhompawundi ze-potting ezinyanga ukukhanya ezibonakalayo, zizisa izisombululo ezintsha kulo lonke eli shishini.
Uphuhliso lobuchwephesha: Ukusuka kwithiyori ukuya kwisicelo
Iiresini eziphilisa ukukhanya zinokuqina kwimizuzwana embalwa phantsi kokukhanya kwe-ultraviolet okanye okubonakalayo. Izinto eziphambili zazo ziquka iiresini ze-acrylate, ii-monomers ezisabelayo, ii-photoinitiators, kunye nezinye izongezo ezahlukeneyo. Xa zibonakaliswa kukukhanya kwamaza athile, ii-photoinitiators zivelisa ii-free radicals ezisebenzayo okanye ii-cations ezibangela impendulo edibanisayo phakathi kwee-monomers kunye nee-resin, zenze umaleko okhuselayo oqinileyo.
Le ndlela yokunyanga ifanelekile ngokukodwa kwi-LED string encapsulation—kuba ii-LED chips ngokwazo zinokusebenza njengomthombo wokukhanya wokunyanga, zivumela ukuzifihla ngokwazo.
Ukujongana Neengxaki Zoshishino
Iindawo ezikhethekileyo zokusetyenziswa kweentambo ze-LED zizisa imingeni emininzi yokupakisha: usetyenziso lwangaphandle lufuna ukumelana nokufuma, ukutshintsha kwamaqondo obushushu, kunye nokuguga kwe-UV; iingcingo ezintsonkothileyo zifuna izixhobo ezinokuguquguquka okugqwesileyo kunye nokuvuleka; kwaye umkhwa wokwenza izinto zibe zincinci ufuna izixhobo ezizalisa ngokupheleleyo izikhewu ezincinci ngaphandle kokuphazamisa ukusebenza kwe-optical.
Ukupakisha i-epoxy resin yendabuko, enemiba efana nokucotha kokuqina, ukusetyenziswa kwamandla aphezulu, kunye nokuthambekela ekubeni tyheli, akusakwazi ukuhlangabezana neemfuno zeentambo ze-LED zanamhlanje zemveliso esebenza kakuhle kunye nokuthembeka kwexesha elide.
Ixabiso Elisebenzayo LeeCompounds Zokubumba Eziphilisa Ukukhanya
Iikhompawundi ze-potting eziphucukileyo eziphilisa ukukhanya zihlala ziqulathe i-acrylate resin (iinxalenye ezingama-40-80), i-reactive monomer (iinxalenye ezingama-20-40), i-photoinitiator (iinxalenye ezili-1-8), kunye nezongezo (iinxalenye ezili-1-3). Ifomyula elungiselelweyo ivumela ukuba izinto zikhanye ngokupheleleyo kwimizuzwana emi-2-10 kuphela phantsi kokukhanya kwe-LED okunamandla aphezulu, okunyusa kakhulu ukusebenza kakuhle kwemveliso.
Umzekelo, i-epoxy acrylate 61003A eguquliweyo, eyenziwe ngu-Ever Ray. Le mveliso inika uluhlu lwe-viscosity oluphakathi kwe-8,000–18,000 (oluyenza ifaneleke ukwakheka kwedome), isantya sokuphendula ngokukhawuleza, ukuqina okugqwesileyo, kunye neempawu ezibalaseleyo zokulwa nombala otyheli.
Iingenelo zobugcisa ezibalaseleyo
Iiresini eziphilisa ukukhanya zinika amandla amaninzi kwizicelo ze-LED string potting:
Ukusebenza kakuhle kwamandla: Inkqubo yokunyanga ukukhanya inokunciphisa ukusetyenziswa kombane ngama-20–80%, nto leyo evumela ukunyanga ngesantya esiphezulu kwaye inyuse kakhulu amandla emveliso kubavelisi.
Ubuhlobo nokusingqongileyo: Uninzi lweekhompawundi zanamhlanje zokulungisa iimbiza azinazo izinyibilikisi kunye nee-isocyanates, zinomxholo ophantsi kakhulu wekhompawundi ye-volatious organic compound (VOC).
Ukusebenza: Umaleko we-encapsulation ophilisiweyo unika ukuhanjiswa kokukhanya okuphezulu (>99% kwi-spectrum ebonakalayo), ukumelana ne-UV ixesha elide, kunye nokhuseleko oluhle kakhulu loomatshini kunye nokunciphisa uxinzelelo. Okwangoku, iintlobo ze-potting zahlulwe ngokubanzi zibe zi-transparent, semi-transparent, kunye ne-opaque.
Amathemba eMarike eBanzi
Ukusetyenziswa kweeresini ezikhanyisa ukukhanya kwicandelo le-LED kuyaqhubeka nokwanda. Ukusuka kwizibane ezilula zokubonisa ukuya kubuchwepheshe banamhlanje be-Mini LED kunye ne-Micro LED display, iimfuno zezinto zokuvala ziyaqhubeka nokunyuka.
Kwicandelo leentambo ze-LED, ii-resin ezicima ukukhanya aziboneleli ngokhuseleko olusebenzayo lwe-chip kodwa zikwaphucula ukusebenza kakuhle kokukhupha ukukhanya, ziphucula imveliso ye-LED, kwaye zandisa ubomi benkonzo. Ngokwandiswa okuqhubekayo kwemarike yezibane ezikrelekrele kunye neentambo zokukhanyisa zokuhombisa, amathuba etekhnoloji yokukhusela ukukhanya abonakala ethembisa kakhulu.
Idatha yeshishini ibonisa ukuba imakethi yezixhobo zokupakisha ze-LED ikhula ngesantya esiphakathi sonyaka esimalunga ne-10%, kwaye iteknoloji yokukhanyisa ukukhanya yenye yezona candelo zikhula ngokukhawuleza. Le teknoloji ayikhulisi nje kuphela ukusebenza kakuhle kwemveliso kodwa ikwaphucula kakhulu umgangatho wemveliso kunye nokuthembeka, inika inkxaso eqinileyo kuphuhliso oluzinzileyo lweshishini lokukhanyisa le-LED.
