Dab tsi yog qhov ua tau zoo ntawm LED diodes?

1, Theoretical hauv paus ntawm LED efficiency
Kev ua haujlwm ntawm LED feem ntau yog hais txog nws qhov kev hloov pauv photoelectric, uas yog feem pua ​​​​ntawm cov hluav taws xob hluav taws xob hloov mus rau lub teeb lub zog. Qhov kev ua tau zoo ncaj qha txiav txim siab npaum li cas ntawm lub teeb uas LED tuaj yeem tawm hauv tib lub zog hluav taws xob. Nyob rau hauv txoj kev xav, qhov ua tau zoo ntawm LEDs yog txwv los ntawm ntau yam ntawm lub cev, nrog rau cov qauv ntawm cov khoom siv semiconductor, kev ua kom zoo dua ntawm cov hluav taws xob thiab qhov, thiab lub teeb tshem tawm efficiency.
Band qauv: Cov khoom siv semiconductor ntawm LED txiav txim siab nws cov qauv band, uas cuam tshuam rau lub zog xav tau rau kev hloov hluav taws xob. Cov khoom siv LED zoo tshaj plaws yuav tsum muaj qhov sib txawv loj kom ua tiav cov kev hloov hluav taws xob zoo thiab luminescence ntawm qis voltages.
Composite efficiency: Nyob rau hauv LED, recombination ntawm electrons thiab qhov yog cov txheej txheem tseem ceeb rau luminescence. Kev sib xyaw ua kom zoo txhais tau hais tias ntau cov khoom siv hluav taws xob tuaj yeem hloov mus rau hauv lub teeb lub zog es tsis txhob dissipating nyob rau hauv daim ntawv ntawm tshav kub zog.
Lub teeb extraction efficiency: Lub teeb emissions los ntawm LEDs yuav tsum tau propagated thiab muab rho tawm los ntawm ntim cov ntaub ntawv nyob rau hauv thiaj li yuav ua tau lub teeb pom kev zoo. Yog li ntawd, kev xaiv thiab tsim cov khoom ntim khoom muaj feem cuam tshuam rau lub teeb pom kev zoo ntawm LEDs.
2, Cov yam ntxwv cuam tshuam rau LED efficiency
Hauv kev siv tswv yim, kev ua haujlwm ntawm LED yog cuam tshuam los ntawm ntau yam, nrog rau cov yam ntxwv ntawm lub cev ntawm LED nws tus kheej, nrog rau ib puag ncig sab nraud thiab kev siv.
Kev xaiv cov khoom siv: Cov khoom sib txawv ntawm cov khoom siv semiconductor muaj cov qauv sib txawv thiab cov khoom sib xyaw ua haujlwm, uas cuam tshuam rau kev ua haujlwm ntawm LEDs. Piv txwv li, cov ntaub ntawv ua tau zoo xws li gallium nitride (GaN) thiab gallium arsenide (GaAs) tuaj yeem txhim kho qhov ua tau zoo ntawm LEDs.
Tus qauv tsim: Lub pn hlws ris qauv thiab kho qhov muag kab noj hniav tsim ntawm LED tuaj yeem cuam tshuam nws cov luminous efficiency thiab lub teeb pom kev zoo. Los ntawm optimizing tus qauv tsim, nws muaj peev xwm txo tau lub teeb poob thiab txhim kho lub teeb extraction efficiency.
Cov txheej txheem tsim khoom: Qhov zoo ntawm cov txheej txheem tsim khoom ncaj qha cuam tshuam rau cov khoom siv lead ua zoo thiab qhov tsis xws luag ntawm LED, uas cuam tshuam rau nws cov txiaj ntsig. Cov txheej txheem tsim khoom zoo tuaj yeem txo cov khoom siv lead ua tsis xws luag thiab cov khoom tsis huv, txhim kho lub luminous efficiency thiab stability ntawm LEDs.
Kev siv tej yam kev mob: Qhov kub thiab txias ua hauj lwm, tam sim no ceev, thiab lwm yam kev siv ntawm LED kuj yuav cuam tshuam nws efficiency. Qhov kub thiab qhov ceev tam sim no tuaj yeem ua rau txo qis kev ua haujlwm thiab txawm tias muaj kev puas tsuaj rau LEDs.
3, Txoj kev los txhim kho LED efficiency
Txhawm rau txhim kho qhov ua tau zoo ntawm LEDs, cov kws tshawb fawb thiab cov kws tshaj lij tau tshawb nrhiav cov ntaub ntawv tshiab, cov qauv, thiab cov txheej txheem tsim khoom, thiab txhim kho kev siv cov xwm txheej zoo. Nov yog qee txoj hauv kev los txhim kho LED efficiency:
Siv cov ntaub ntawv ua tau zoo: Los ntawm kev tsim cov khoom siv semiconductor tshiab xws li gallium nitride (GaN), gallium arsenide (GaAs), thiab lwm yam., cov luminous efficiency thiab stability ntawm LEDs tuaj yeem txhim kho tau zoo.
Optimizing structural design: Los ntawm kev txhim kho pn hlws ris qauv, kho qhov muag kab noj hniav, thiab lwm yam, nws muaj peev xwm txo tau lub teeb poob thiab txhim kho lub teeb extraction efficiency. Piv txwv li, siv cov qauv xws li micro lens arrays lossis photonic crystals tuaj yeem txhim kho lub teeb pom kev zoo ntawm LEDs.
Txhim kho cov txheej txheem tsim khoom: Los ntawm kev txhim kho cov txheej txheem tsim khoom xws li txo cov khoom siv lead ua tsis xws luag thiab cov khoom impurities, kev txhim kho cov khoom siv lead ua zoo, thiab lwm yam., cov luminous efficiency thiab stability ntawm LEDs tuaj yeem txhim kho ntxiv.
Kev ua kom zoo rau kev siv: Los ntawm kev siv cov qauv tsim hluav taws xob tsim nyog thiab kev tswj xyuas tam sim no, kev ua haujlwm kub thiab qhov ceev ntawm LEDs tam sim no tuaj yeem txo qis, yog li txhim kho lawv cov kev ua tau zoo. Tsis tas li ntawd, cov qauv LED tsim nyog thiab cov lus qhia tshwj xeeb tuaj yeem xaiv raws li cov ntawv thov tshwj xeeb kom ua tiav lawv cov txiaj ntsig kev ua tau zoo.
4, Kev ua haujlwm ntawm LED kev ua haujlwm zoo hauv kev siv tswv yim
Hauv kev siv tswv yim, kev ua tau zoo ntawm LED yog cuam tshuam los ntawm ntau yam, tab sis tag nrho nws nthuav tawm cov yam ntxwv ntawm kev ua haujlwm siab, txuag hluav taws xob, thiab kev tiv thaiv ib puag ncig. Nrog rau kev nce qib ntawm cov thev naus laus zis tsis tu ncua thiab txo cov nqi, kev siv LED hauv teeb pom kev zoo, zaub, kev sib txuas lus thiab lwm yam kev lag luam tau nce zuj zus.
Hauv kev teeb pom kev lag luam, LED teeb pom kev zoo tau maj mam hloov cov teeb pom kev zoo thiab cov teeb fluorescent vim lawv cov kev ua haujlwm siab, kev siv hluav taws xob, thiab kev phooj ywg ib puag ncig. Nyob rau tib lub ci ci, kev siv lub zog ntawm LED teeb tsuas yog ib feem lossis txawm tias ib feem ntawm cov teeb pom kev zoo, txo qis kev siv zog thiab cov pa roj carbon monoxide.
Zaub teb: LED zaub tau siv dav hauv kev tshaj tawm, theem, TV thiab lwm yam kev lag luam vim lawv qhov ci ntsa iab, qhov sib txawv siab, siab xim saturation thiab lwm yam zoo. Nrog kev nce qib ntawm kev siv thev naus laus zis, qhov kev daws teeb meem thiab kev hloov tshiab ntawm cov lus qhia LED tau txhim kho tas li, coj cov neeg siv kev paub pom tseeb dua.
Hauv kev sib txuas lus, LED kuj tseem muaj kev thov dav dav hauv kev sib txuas lus kho qhov muag. Los ntawm kev siv cov khoom siv luminescent ntawm LEDs, kev sib txuas lus siab ceev thiab tus nqi qis wireless tuaj yeem ua tiav, muab cov kev daws teeb meem tshiab rau thaj chaw xws li Internet ntawm Yam thiab cov tsev ntse.
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