LEDizwi nkibisekuru bya kane bimurika cyangwa icyatsi kibisi. Ifite ibiranga kuzigama ingufu, kurengera ibidukikije, igihe kirekire cya serivisi nubunini buto. Irakoreshwa cyane mubice bitandukanye nko kwerekana, kwerekana, gushushanya, kumurika inyuma, kumurika rusange hamwe nijoro ryumujyi. Ukurikije imirimo itandukanye, irashobora kugabanywamo ibyiciro bitanu: kwerekana amakuru, itara ryerekana ibimenyetso, amatara yimodoka, itara ryinyuma rya LCD n'amatara rusange.

IbisanzweAmataragira ibitagenda neza nkumucyo udahagije, biganisha ku kwinjira bidahagije. Itara rya LED rifite ibyiza byo kumurika bihagije no kuramba kuramba, ariko ingufu LED ifite ibibazo bya tekiniki nko gupakira. Hano hari isesengura rigufi ryibintu bigira ingaruka kumucyo wo gukuramo amashanyarazi LED.

Ibintu byo gupakira bigira ingaruka kumucyo

1. Gushyushya ikoranabuhanga

Kuri diode itanga urumuri rugizwe na PN, iyo imiyoboro yimbere isohoka hanze ya PN, ihuriro rya PN rifite ubushyuhe. Ubu bushyuhe bukwirakwizwa mu kirere binyuze mu gufatisha, kubumba, kubika ubushyuhe, n'ibindi muri iki gikorwa, buri gice cyibikoresho gifite inzitizi yumuriro kugirango ikumire ubushyuhe, ni ukuvuga kurwanya ubushyuhe. Kurwanya ubushyuhe nigiciro gihamye cyagenwe nubunini, imiterere nibikoresho byigikoresho.

Reka ubushyuhe bwumuriro wa LED bube rth (℃ / W) nimbaraga zo gukwirakwiza amashyuza kuba PD (W). Muri iki gihe, ubushyuhe bwa PN buterwa no gutakaza ubushyuhe bwumuriro burazamuka kuri:

T (℃) = Rth & TImes; PD

Ubushyuhe bwa PN:

TJ = TA + Rth & TImes; PD

Aho TA ni ubushyuhe bwibidukikije. Ubwiyongere bwubushyuhe bwihuriro buzagabanya amahirwe ya PN ihuza urumuri rusohora urumuri, kandi urumuri rwa LED ruzagabanuka. Muri icyo gihe, bitewe n'ubwiyongere bw'ubushyuhe bwatewe no gutakaza ubushyuhe, umucyo wa LED ntuzongera kwiyongera ugereranije n'ubu, ni ukuvuga ko yerekana kwiyuzuza ubushyuhe. Mubyongeyeho, hamwe no kwiyongera kwubushyuhe bwihuriro, uburebure bwumurambararo wa luminescence nabwo buzagenda bwerekeza kumurongo muremure, hafi 0.2-0.3nm / ℃. Kuri LED yera yabonetse mukuvanga fosifore YAG yashizwemo na chip yubururu, gutembera kwubururu bwubururu bizatera kudahuza nuburebure bwumurambararo wa fosifore, kugirango bigabanye imikorere yumucyo rusange ya LED yera kandi uhindure ubushyuhe bwamabara yumucyo wera.

Ku mbaraga LED, ikinyabiziga kigenda muri rusange kirenga amagana ya Ma, kandi ubucucike buriho bwa PN ni bunini cyane, bityo ubushyuhe bwo kuzamuka kwa PN buragaragara cyane. Kubipakira no kubishyira mubikorwa, nigute wagabanya ubukana bwumuriro wibicuruzwa no gutuma ubushyuhe butangwa nisangano rya PN bigabanuka vuba bishoboka ntibishobora gusa kuzamura ubwuzuzanye bwibicuruzwa no kunoza imikorere yibicuruzwa, ariko kandi binatezimbere kwizerwa nubuzima bwa serivisi kubicuruzwa. Kugirango ugabanye ubushyuhe bwumuriro wibicuruzwa, icya mbere, guhitamo ibikoresho bipfunyika ni ngombwa cyane cyane, harimo ubushyuhe, ubushyuhe, nibindi. Kurwanya ubushyuhe bwa buri kintu bigomba kuba bike, ni ukuvuga ko bisabwa kugira ubushyuhe bwiza bwumuriro. . Icya kabiri, igishushanyo mbonera kigomba kuba gishyize mu gaciro, ubushyuhe bwumuriro hagati yibikoresho bugomba guhuzwa, kandi nubushyuhe bwumuriro hagati yibikoresho bigomba guhuzwa neza, kugirango hirindwe icyuho cyo gukwirakwiza ubushyuhe mumuyoboro utwara ubushyuhe no kwemeza ko ubushyuhe buturuka kuri Imbere Kuri Igice cyo hanze. Muri icyo gihe, birakenewe ko ubushyuhe bugabanuka mugihe ukurikije umuyoboro wateguwe mbere.

2. Guhitamo uwuzuza

Dukurikije amategeko yo kugabanya, iyo urumuri rwabaye kuva urumuri rwinshi ruciriritse kugeza urumuri ruke, iyo impande yibyabaye igeze ku gaciro runaka, ni ukuvuga, iruta cyangwa iringaniye impande zikomeye, imyuka yuzuye izaba. Kuri chip yubururu ya GaN, indangagaciro yo kugabanya ibikoresho bya GaN ni 2.3. Iyo urumuri rusohotse imbere yimbere ya kirisiti mukirere, ukurikije amategeko yo kugabanya, inguni ikomeye θ 0 = icyaha-1 (n2 / n1)。

Aho N2 ingana na 1, ni ukuvuga, indangagaciro yo guhumeka ikirere, na N1 nigipimo cyerekana Gan, kuva aho inguni zikomeye zibarwa θ 0 ni dogere 25.8. Kuri iki kibazo, urumuri rwonyine rushobora gusohoka ni urumuri ruri mu mpande zikomeye hamwe n’impanuka ≤ 25.8. Biravugwa ko kwant yo hanze ikora neza ya chip ya Gan igera kuri 30% - 40%. Kubwibyo, kubera kwinjiza imbere muri chip kristu, igipimo cyurumuri rushobora gusohoka hanze ya kristu ni gito cyane. Biravugwa ko kwant yo hanze ikora neza ya chip ya Gan igera kuri 30% - 40%. Mu buryo nk'ubwo, urumuri rutangwa na chip rugomba koherezwa mu kirere binyuze mu bikoresho bipfunyika, kandi hagomba no gusuzumwa ingaruka z’ibikoresho ku buryo bwo gukuramo urumuri.

Kubwibyo, kugirango tunonosore urumuri rwo gukuramo ibicuruzwa bya LED bipfunyika, agaciro ka N2 kagomba kongerwa, ni ukuvuga, indangagaciro yo kugabanya ibikoresho byo gupakira igomba kongerwa kugirango irusheho kunoza ibicuruzwa, kugirango tunoze ibipfunyika. imikorere yumucyo. Mugihe kimwe, kwinjiza urumuri rwibikoresho byo gupakira bigomba kuba bito. Kugirango tunonosore igipimo cyurumuri rusohoka, imiterere yipaki irahitamo neza cyangwa igororotse, kuburyo iyo urumuri rusohotse mubikoresho bipfunyika mukirere, usanga hafi ya perpendikulari kuri interineti, kuburyo ntagaragaza rwose.

3. Gutunganya ibitekerezo

Hariho ibintu bibiri by'ingenzi byo gutunganya ibintu: kimwe ni ugutunganya ibintu imbere muri chip, ikindi ni ukumurika urumuri ukoresheje ibikoresho. Binyuze mu gutunganya imbere no hanze, kugereranya urumuri ruturuka kuri chip birashobora kunozwa, kwinjiza imbere muri chip birashobora kugabanuka, kandi imikorere yumucyo wibicuruzwa LED irashobora kunozwa. Kubijyanye no gupakira, imbaraga LED mubisanzwe ikoranya chip kumashanyarazi kumurongo wicyuma cyangwa substrate hamwe na cavit yo kwerekana. Inkunga yubwoko bugaragaza muri rusange ifata amashanyarazi kugirango irusheho kwerekana ingaruka zo kugaragara, mugihe icyapa cyibanze cyerekana icyuma gikora neza. Niba bishoboka, kuvura amashanyarazi bizakorwa, ariko uburyo bubiri bwo kuvura buvuzwe nuburyo bugaragara hamwe nuburyo bukoreshwa, Umuyoboro utunganijwe utunganijwe ufite ingaruka zimwe zo gutekereza, ariko ntabwo ari byiza. Kugeza ubu, kubera ko polishinge idahagije cyangwa okisisiyoneri y’icyuma, ingaruka zo kwerekana imiterere ya substrate yo mu bwoko bwa substrate yakozwe mu Bushinwa ni mbi, ibyo bigatuma urumuri rwinshi rwinjizwa nyuma yo kurasa ahantu hagaragarira kandi ntirushobora kugaragarira kuri urumuri rusohora hejuru ukurikije intego ziteganijwe, bikavamo umusaruro muke wo gukuramo urumuri nyuma yo gupakira bwa nyuma.

4. Guhitamo fosifori no gutwikira

Ku mbaraga zera LED, kunoza imikorere ya luminous nabyo bifitanye isano no guhitamo fosifore no kuvura inzira. Kugirango tunonosore imikorere ya fosifori ishimishije ya chip yubururu, icya mbere, guhitamo fosifore bigomba kuba bikwiye, harimo uburebure bwumurambararo, ingano yingingo, imikorere ishimishije, nibindi, bigomba gusuzumwa neza kandi ukazirikana imikorere yose. Icya kabiri, igifuniko cya fosifore kigomba kuba kimwe, byaba byiza ubunini bwurwego rufatika kuri buri buso butanga urumuri rwa chip itanga urumuri rugomba kuba rumwe, kugirango hatabuza urumuri rwaho gusohoka kubera ubunini butaringaniye, ariko kuzamura kandi ubwiza bwurumuri.

incamake:

Igishushanyo cyiza cyo gukwirakwiza ubushyuhe gifite uruhare runini mugutezimbere imikorere yumucyo wibicuruzwa LED, kandi ni nacyo cyerekezo cyo kwemeza ubuzima bwa serivisi no kwizerwa kwibicuruzwa. Umuyoboro wateguwe neza urumuri rwibanze hano rwibanda ku gishushanyo mbonera, guhitamo ibikoresho no gutunganya uburyo bwo kuvura umwobo hamwe no kuzuza kole, bishobora kuzamura neza imikorere yo gukuramo urumuri LED. KububashaLED yera, guhitamo fosifore nigishushanyo mbonera nacyo ni ingenzi cyane kunoza ikibanza no gukora neza.