Zoo siab txais tos rau lub ntiaj teb ntawm Lub Teeb Emitting Diodes (LEDs), qhov chaw siv hluav taws xob ua tau raws li lub teeb pom kev zoo.

LEDs tau hloov pauv li cas peb teeb peb lub tsev, chaw ua haujlwm, thiab chaw pej xeem. Nws muaj qhov ci ntsa iab, kav ntev dua, thiab kev xaiv teeb pom kev zoo dua. Cov kev xav me me no tau los ntev. Thiab cov no yog qhov tseeb uas ua rau LEDs yog qhov tsim nyog hloov rau cov khoom siv hluav taws xob thiab cov raj fluorescent. Nws tuaj yeem yog los ntawm cov LED me me uas teeb peb lub xov tooj ntawm tes mus rau cov ntxaij vab tshaus LED loj heev uas ua rau peb nyob hauv Times Square.

Cov lus qhia dav dav no yuav tshawb txog txhua yam koj xav paub txog LEDs. Koj yuav kawm txog lawv cov keeb kwm, cov qauv kev ua haujlwm, cov ntawv thov, thiab cov txiaj ntsig. Yog li, txawm tias koj yog ib tus kws tshaj lij, tus tsim teeb pom kev zoo, lossis cov neeg siv khoom xav paub, khi koj lub rooj zaum thiab npaj kom pom tseeb!

Lub teeb Emitting Diodes (LEDs) yog dab tsi?

Lub teeb Emitting Diodes (LEDs) yog cov khoom siv semiconductor me me. Lawv tawm lub teeb thaum muaj hluav taws xob dhau los ntawm lawv. Nyob rau hauv sib piv, cov tsoos incandescent qhov muag teev tsim lub teeb los ntawm cua sov ib tug hlau filament. LEDs cia siab rau kev txav ntawm electrons hauv cov khoom siv semiconductor los tsim lub teeb.

LEDs tuaj nyob rau hauv ntau yam xim, los ntawm liab thiab ntsuab mus rau xiav thiab dawb. Ntxiv mus, LEDs muaj ntau qhov zoo dua li cov teeb pom kev zoo ib txwm muaj. Lawv suav nrog kev siv hluav taws xob, lub neej ntev, thiab qhov me me. Yog li ntawd, lawv tau dhau los ua neeg nyiam nyob rau hauv ntau yam kev siv. LED tau npog txhua yam ntawm teeb pom kev zoo thiab cov khoom siv rau tsheb thiab aerospace technology.

Luv keeb kwm ntawm LEDs

Lub teeb-emitting diodes (LEDs) yog ubiquitous nyob rau hauv peb lub neej niaj hnub. Lawv tau siv rau hauv txhua yam ntawm cov teeb tsheb mus rau cov khoom siv hluav taws xob. Txawm rau lub teeb pom kev hauv tsev thiab lub tsheb hauv tsheb. Txawm li cas los xij, lawv cov keeb kwm rov qab mus rau thaum ntxov xyoo pua 20th.

Xyoo 1907, tus kws tshawb fawb Askiv HJ Round tau tshawb pom qhov tshwm sim hu ua electroluminescence. Qee cov ntaub ntawv tuaj yeem tawm lub teeb thaum muaj hluav taws xob dhau los ntawm lawv. Cov kev siv ntawm electroluminescence tsis tau tsim kom txog thaum xyoo 1960.

Ob peb xyoos tom ntej no, cov kws tshawb fawb txuas ntxiv txhim kho LED thev naus laus zis. Lawv tsim cov xim tshiab thiab ua kom lawv ci ntsa iab. Ntsuab thiab xiav LEDs tau tshwm sim hauv xyoo 1990 tom qab LEDs daj nyob rau xyoo 1970s. Hauv xyoo 2014, cov kws tshawb fawb ntawm University of California, Santa Barbara, tau tsim lub LED dawb. Nws revolutionized lub teeb pom kev lag luam.

Niaj hnub no, LEDs tau siv ntau yam kev siv, nrog rau cov teeb pom kev zoo, cov lus qhia, thiab cov khoom siv kho mob. Lawv siv tau ntev thiab siv zog ntau dua li cov teeb pom kev zoo. Qhov ntawd ua rau lawv muaj kev xaiv nrov rau cov neeg siv khoom thiab cov lag luam.

Qhov zoo ntawm LED teeb pom kev zoo

LED teeb pom kev zoo muaj ntau yam zoo dua lwm hom teeb pom kev zoo. Qhov no suav nrog kev siv hluav taws xob, kev txuag nqi, kev pab cuam ib puag ncig, durability, thiab tsim ntau yam. Hauv seem no, peb yuav tshawb xyuas cov txiaj ntsig no kom ntxaws ntxiv.

Zog txuag hluav taws xob thiab txuag nqi

Ib qho ntawm qhov zoo tshaj plaws ntawm LED teeb pom kev zoo yog nws lub zog ua haujlwm. LEDs muaj txiaj ntsig zoo dua li qhov muag teeb lossis cov teeb fluorescent. Vim tias lawv siv lub zog tsawg dua los tsim cov teeb pom kev zoo tib yam. Lub ntsiab lus, LED teeb pom kev zoo tuaj yeem txuag koj nyiaj ntau ntawm cov nqi hluav taws xob. Yog li ntawd, koj tuaj yeem siv lawv ntau zaus.

Raws li US Department of Energy, LED teeb pom kev zoo tuaj yeem siv txog li 75% tsawg zog dua qhov muag teev. Nws kuj kav ntev li 25 npaug. Qhov no txhais tau hais tias dhau lub neej ntawm LED teeb, koj tuaj yeem txuag tau ntau pua nyiaj hauv cov nqi hluav taws xob. Tsis tas li ntawd, LED teeb tsim hluav taws xob tsawg dua. Yog li, lawv muaj txiaj ntsig zoo ntawm kev hloov lub zog rau hauv lub teeb thiab tsis nkim cua sov.

Environmental Benefits

Lwm qhov txiaj ntsig tseem ceeb ntawm LED teeb pom kev zoo yog nws cov txiaj ntsig ib puag ncig. LEDs yog eco-friendly thiab muaj cov pa roj carbon tsawg dua li cov khoom siv teeb pom kev zoo. Qhov no yog vim hais tias lawv haus tsawg zog, txhais tau tias tsawg zog yuav tsum tau generated rau lub hwj chim.

Tsis tas li ntawd, LEDs tsis muaj cov khoom phom sij xws li mercury. Qhov no muaj nyob rau hauv cov teeb fluorescent. Lub ntsiab lus yog tias LEDs muaj kev nyab xeeb dua rau ib puag ncig. Tsis tas li ntawd, nws yooj yim dua pov tseg dua li cov khoom siv teeb pom kev zoo.

Durability thiab Longevity

LED teeb pom kev zoo yog qhov ruaj khov thiab kav ntev. LEDs yog tsim los ntawm cov khoom siv. Thiab lawv tsis muaj cov filaments lossis cov raj, ua rau lawv tsis tshua tawg lossis tawg. Qhov no ua rau lawv zoo tagnrho rau siv nyob rau hauv ib puag ncig sab nraum zoov lossis thaj chaw uas muaj kev pheej hmoo ntawm kev cuam tshuam lossis kev co.

LEDs kuj muaj lub neej ntev dua li cov khoom siv teeb pom kev zoo. Lawv tuaj yeem kav ntev txog 50,000 teev. Qhov no yog qhov ntev tshaj li qhov muag teev lossis cov teeb fluorescent. Qhov no txhais tau tias koj tuaj yeem txuag nyiaj ntawm kev hloov pauv thiab cov nqi kho mob thaum lub sijhawm.

Tsim Kev Txhim Kho

Tsis tas li ntawd, nws ua haujlwm zoo nyob rau hauv qhov chaw uas ua zaub mov thiab dej haus, qhov chaw teeb pom kev zoo yog qhov tseem ceeb heev rau kev teeb tsa lub siab. LED teeb pom kev zoo yog ntau yam thiab tuaj yeem siv rau ntau yam kev siv. Lawv tuaj nyob rau hauv ntau qhov ntau thiab tsawg. Tsis tas li ntawd, lawv tsim nyog rau ntau lub hom phiaj. Qee cov qauv tsim qauv tsim rau LED teeb pom kev zoo suav nrog- 

• LED tube teeb
• LED qhov muag teev
• LED teeb
• LED strips
• LED neon flex
• LED recessed teeb
• LED taug qab teeb
• LED tsom teeb, thiab lwm yam.

Tsis tas li ntawd, cov LEDs no kuj siv rau hauv cov khoom siv kho kom zoo nkauj xws li chandeliers thiab pendant teeb. Yog li, nyob rau hauv cov nqe lus ntawm kev tsim, LED yog lub teeb pom kev zoo tshaj plaws uas koj yuav pom. 

Kev xaiv ntau lub teeb xim

LEDs muaj nyob rau hauv ntau yam xim thiab xim kub. Koj tuaj yeem xaiv qhov sov, txias, lossis ntuj dawb teeb pom kev zoo rau koj cheeb tsam nrog LEDs. Tsis tas li ntawd, nws muaj ntau yam xim teeb pom kev zoo: liab, xiav, ntsuab, thiab daj - txawm lub teeb xim koj xav tau, LED yog koj qhov kev xaiv kawg. Tsis tas li ntawd, nws muab cov yam ntxwv kho xim, xws li RGB teeb, chaw nyob LED strips, thiab ntau dua. Ua tsaug rau high-tech LED maub los uas ua rau qhov kev hloov xim xim tuaj yeem ua tau. Yog li, koj tuaj yeem tsim cov kev xav sib txawv thiab ambiances rau koj cheeb tsam siv LEDs. Qhov no ua rau lawv zoo tagnrho rau kev siv hauv chaw lag luam thiab chaw muag khoom. 

Instant On

LEDs muab lub teeb tam sim thaum qhib. Tab sis ib txwm lub teeb yuav siv sij hawm ob peb feeb kom sov ua ntej muab tag nrho cov ci ci. Qhov no ua rau lawv zoo meej rau kev siv hauv cov ntawv thov uas xav tau lub teeb tam sim. Piv txwv li, teeb pom kev tsheb thiab teeb pom kev kub ceev.

LEDs ua haujlwm li cas?

LEDs, los yog lub teeb-emitting diodes, yog semiconductors. Lawv tau hloov pauv peb li cas rau peb lub tsev, chaw ua haujlwm, thiab txoj kev. Tab sis LEDs ua haujlwm li cas? Cia peb nkag siab txog cov hauv paus ntawm LED thev naus laus zis, suav nrog electron flow, pn junctions, thiab ntau ntxiv.

• Basics ntawm Electron Flow

Yuav kom nkag siab txog yuav ua li cas LEDs ua haujlwm, peb yuav tsum xub nkag siab qee cov ntsiab cai ntawm electron flow. Electrons yog qhov tsis zoo them nqi. Lawv orbit lub nucleus ntawm ib tug atom. Hauv qee cov ntaub ntawv, xws li hlau, electrons tsis tshua muaj kev txav mus los. Nws tso cai rau kev khiav ntawm hluav taws xob. Hauv lwm cov ntaub ntawv, xws li insulators, electrons nruj nreem khi rau lawv cov atoms. Thiab lawv tsis txav mus los ywj siab.

Cov khoom siv semiconductor muaj qee qhov nthuav dav. Lawv poob qhov chaw ntawm cov hlau thiab insulators. Lawv tuaj yeem ua hluav taws xob, tab sis hlau zoo dua. Txawm li cas los xij, tsis zoo li cov insulators, lawv tuaj yeem "tso" los ua hluav taws xob hauv qee qhov xwm txheej. Cov cuab yeej no ua rau semiconductors zoo tagnrho rau siv hauv cov khoom siv hluav taws xob.

• PN Junction thiab Lub luag haujlwm ntawm cov khoom siv semiconductor

Cov khoom siv semiconductor ua lub luag haujlwm tseem ceeb hauv emitting lub teeb hauv LEDs. Silicon lossis germanium feem ntau yog siv los ua cov khoom siv semiconductor hauv LEDs. Txhawm rau ua kom lawv muaj qhov hluav taws xob txaus los tsim lub teeb, koj yuav tsum ntxiv impurities rau cov khoom siv hauv cov txheej txheem hu ua doping.

Doping suav nrog ntxiv me me ntawm impurities rau cov khoom siv semiconductor los hloov nws cov khoom hluav taws xob. Muaj ob pawg ntawm doping: n-hom thiab p-hom. N-hom doping suav nrog ntxiv impurities uas muaj cov khoom siv hluav taws xob ntxiv rau cov khoom siv semiconductor. Cov electrons ntxiv no tuaj yeem txav mus los hauv cov khoom. Nws tsim ib qho nyiaj seem ntawm cov khoom tsis zoo. P-hom doping, ntawm qhov tod tes, ntxiv impurities uas muaj tsawg dua electrons dua li cov khoom siv semiconductor. Qhov no tsim "qhov" hauv cov khoom lossis thaj chaw uas tsis muaj hluav taws xob. Cov qhov no raug them zoo.

Thaum cov khoom siv p-type muab tso rau ntawm ib sab ntawm cov khoom n-hom, pn junction yog tsim. Ntawm qhov sib txuas, cov khoom siv hluav taws xob ntau dhau los ntawm cov khoom siv n-hom sau cov qhov hauv cov khoom siv p-type. Qhov no tsim ib cheeb tsam depletion, lossis thaj chaw uas tsis muaj hluav taws xob dawb lossis qhov. Lub cheeb tsam depletion no ua qhov cuam tshuam rau cov dej ntws tam sim no. Qhov no tiv thaiv kev ntws ntawm electrons los ntawm cov khoom siv n-hom mus rau p-hom khoom.

• Qhov tseem ceeb ntawm Doping thiab tsim ib cheeb tsam Depletion

Tsim ib cheeb tsam depletion yog qhov tseem ceeb rau kev ua haujlwm ntawm LED. Thaum ib qho hluav taws xob siv rau pn kev sib tshuam, nws ua rau cov hluav taws xob hauv cov khoom n-hom txav mus rau qhov sib tshuam. Nyob rau tib lub sijhawm, lub qhov nyob hauv cov khoom siv p-hom txav mus rau qhov sib txuas ntawm qhov sib txawv. Thaum cov electrons thiab qhov sib ntsib nyob rau hauv cheeb tsam depletion, lawv recombine thiab tso tawm lub zog nyob rau hauv daim ntawv ntawm lub teeb.

Lub zog sib txawv txiav txim qhov tseeb wavelength ntawm lub teeb generated. Nws nyob nruab nrab ntawm valence band thiab conduction band ntawm cov khoom siv semiconductor. Ntawm no, cov kab hluav taws xob conduction yog lub zog ntawm cov qib hauv cov khoom uas electrons tuaj yeem tuav tau thaum lawv tsis khi rau ib qho atom. Ntawm qhov tod tes, lub valence band yog lub zog theem electrons sau thaum khi rau ib qho atom. Thiab thaum lub electron ntog los ntawm lub conduction band mus rau valence band, nws tso tawm lub zog raws li ib tug photon ntawm lub teeb.

• Electroluminescence thiab Generation ntawm Photons

Electroluminescence yog lub teeb-emitting phenomenon. Nws yog cov txheej txheem ntawm lub teeb emission los ntawm ib yam khoom nyob rau hauv teb rau ib tug hluav taws xob tam sim no los ntawm nws. Nyob rau hauv cov ntsiab lus ntawm LED technology, cov txheej txheem electroluminescence yog ua nyob rau hauv lub LED nti.

LED yog ib qho khoom siv semiconductor uas tawm lub teeb thaum muaj hluav taws xob siv thoob plaws nws cov terminals. LED yog ua los ntawm pn hlws ris, ib cheeb tsam uas ob semiconductors ua ke. P-hom semiconductor muaj cov khoom thauj zoo (qhov). Nyob rau tib lub sijhawm, n-hom semiconductor muaj cov khoom thauj tsis zoo (electron).

Ib qho hluav taws xob rau pem hauv ntej yog siv rau pn kev sib tshuam ntawm LED. Thiab qhov no ua rau cov hluav taws xob koom nrog lub qhov hluav taws xob tso tawm lub zog ua photons. Cov photons generated ces mus los ntawm LED cov khaubncaws sab nraud povtseg. Thiab lawv emit los ntawm lub cuab yeej raws li pom lub teeb. Txawm li cas los xij, xim ntawm lub teeb emission nyob ntawm lub zog ntawm photons. Qhov no muaj feem xyuam rau lub zog bandgap ntawm cov khoom siv hauv LED. Piv txwv li, liab LEDs yog tsim los ntawm semiconductors nrog lub zog bandgap qis. Nyob rau hauv sib piv, xiav thiab ntsuab LEDs yuav tsum tau ib tug semiconductors nrog ntau zog sib txawv. Daim ntawv qhia hauv qab no qhia koj qhov tsim nyog semiconductors rau cov xim sib txawv hauv LEDs- 

Hom LEDs

Muaj ntau hom LEDs (Lub Teeb Emitting Diodes), qee qhov yog:

1. Txheem LEDs

Standard LEDs tseem hu ua dhau-qhov lossis ib txwm LEDs. Lawv yog cov feem ntau siv thiab dav siv lub teeb-emitting diodes (LEDs). Cov LEDs no yog tsim los nrog ib tug me me nti ntawm semiconducting cov ntaub ntawv thiab yog encapsulated nyob rau hauv ib tug ntshiab epoxy resin pob nrog ob tug hlau pins. Cov hlau lead no tau teem rau hauv txoj kab ncaj nraim. Yog li, mounting lawv rau ntawm lub rooj tsavxwm luam tawm yog ceev thiab yooj yim.

Cov qauv LEDs tawm lub teeb thaum muaj hluav taws xob tam sim no siv rau cov nti hauv pob epoxy resin. Cov xim ntawm lub teeb tawm yog nyob ntawm cov khoom siv hauv cov nti. Piv txwv li, LEDs ua los ntawm Gallium Arsenide (GaAs) emit teeb liab. Tib lub sijhawm, cov khoom tsim los ntawm Gallium Nitride (GaN) emit xiav thiab ntsuab teeb.

Ib qho txiaj ntsig tseem ceeb ntawm cov qauv LEDs yog lawv cov kav ntev thiab lub neej ntev. Lawv tuaj yeem kav ntev txog kaum txhiab teev. Nws yog qhov ntev dua li cov qhov muag teev incandescent. Lawv kuj muaj zog heev. Tsis tas li ntawd, lawv siv txog li 90% tsawg zog dua qhov muag teev. Lawv emit me ntsis cua sov. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas tsim hluav taws xob muaj kev txhawj xeeb.

Standard LEDs yog siv nyob rau hauv ntau yam kev siv. Qhov no suav nrog cov teeb pom kev zoo, teeb pom kev hauv tsheb, khoom siv hluav taws xob, thiab khoom siv hauv tsev. Lawv kuj tau siv rau hauv lub teeb tsheb thiab cov moos digital. Tsis tas li ntawd, lawv yog qhov kev xaiv zoo tshaj plaws rau lwm cov ntawv thov uas xav tau lub teeb pom kev zoo thiab lub zog txuag hluav taws xob.

2. High-power LEDs

High-power LEDs yog lub teeb-emitting diodes tsim los tsim lub teeb pom kev zoo. Nyob rau tib lub sijhawm, lawv haus cov nqi qis zog. Lawv yog cov zoo tagnrho rau cov teeb pom kev zoo, tsheb, signage, thiab electronics applications.

High-power LEDs txawv ntawm cov qauv LEDs vim lawv cov kev tsim kho thiab kev tsim qauv kuj txawv. High-power LEDs yog tsim los ntawm ntau yam LED chips mounted ntawm ib tug substrate. Qhov no yuav pab kom lawv tag nrho brightness thiab tso zis. Tsis tas li ntawd, high-power LEDs siv lub dab dej loj dua. Nws dissipates lub tshav kub uas lub siab tso zis generates. Yog li, nws tiv thaiv LED los ntawm kev puas tsuaj los ntawm cov cua kub ntau dhau.

Ib qho ntawm qhov zoo ntawm high-power LEDs yog lawv cov efficiency. Lawv tsim ib tug loj npaum li cas ntawm lub teeb tso zis rau ib chav tsev ntawm lub zog noj. Qhov no ua rau lawv muaj kev xaiv nrov rau kev siv hluav taws xob siv hluav taws xob. Lawv kuj muaj kev ruaj khov dua li cov teeb pom kev zoo ib txwm muaj. Tsis tas li ntawd, lawv muaj lub neej ntev dua. Qhov no txo ​​qhov kev xav tau ntawm kev hloov pauv thiab kev saib xyuas tsis tu ncua.

High-power LEDs muaj nyob rau hauv ntau yam xim thiab xim kub. Qhov no ua rau lawv haum rau ntau yam kev siv xws li dav dav, kev ua haujlwm, thiab teeb pom kev tshwj xeeb. Piv txwv li, cog teeb rau cov nroj tsuag sab hauv tsev, teeb pom kev hauv thoob dej yug ntses, thiab theem teeb pom kev zoo.

3. Organic LEDs (OLEDs)

Organic LEDs (OLEDs) yog lub teeb pom kev zoo uas siv cov organic tebchaw los tawm lub teeb. OLEDs zoo ib yam li cov LEDs ib txwm muaj. Lawv tawm lub teeb thaum siv hluav taws xob. Tab sis qhov txawv yog nyob rau hauv kev siv cov ntaub ntawv.

Ib txwm LEDs siv cov khoom siv tsis zoo xws li semiconductors thiab hlau alloys. Ntawm qhov tsis sib xws, OLEDs siv cov organic tebchaw xws li polymers thiab cov khoom me me. Cov ntaub ntawv no yog muab tso rau hauv nyias txheej ntawm lub substrate. Thiab ces stimulated los ntawm ib tug hluav taws xob nqi, ua rau lawv emit lub teeb.

OLEDs muaj ntau qhov zoo dua li cov teeb pom kev zoo ib txwm muaj. Rau ib qho, lawv tuaj yeem nyias thiab hloov tau yooj yim. Qhov no ua rau lawv tsim lwm txoj hauv kev rau kev siv ntau yam kev siv. Txhua yam ntawm smartphones thiab TVs mus rau cov teeb pom kev zoo thiab cov paib suav nrog. Tsis tas li ntawd, OLEDs tuaj yeem ua kom muaj zog heev. Qhov no txhais tau tias lawv tuaj yeem tsim teeb pom kev zoo uas siv lub zog tsawg dua li cov thev naus laus zis niaj hnub.

Ib qho ntawm qhov zoo tshaj plaws ntawm OLEDs yog tias lawv tuaj yeem ua cov xim zoo nkauj thiab zoo nkauj. OLEDs tawm lub teeb ncaj qha los ntawm cov khoom siv organic lawv tus kheej. Yog li, lawv tuaj yeem tsim ntau yam xim thiab qhov sib txawv zoo dua li cov LEDs ib txwm muaj. Txawm li cas los xij, nws tso siab rau cov lim dej los tsim cov xim. Qhov no ua rau OLEDs zoo rau kev siv hauv cov ntawv thov xws li cov duab digital. Tsis tas li ntawd, nws yog qhov zoo meej rau cov teeb pom kev zoo uas qhov tseeb xim yog qhov tseem ceeb.

4. Polymer LEDs (PLEDs)

Polymer Teeb-Emitting diodes (PLEDs) siv cov khoom siv hluav taws xob polymer ua cov txheej txheem nquag. Cov khoom siv organic no muaj cov khoom siv kho qhov muag thiab hluav taws xob tshwj xeeb. Qhov no ua rau lawv zoo tagnrho rau cov khoom siv teeb pom kev zoo.

Ib txwm LEDs yog ua los ntawm cov khoom siv tsis muaj zog. Piv txwv li, gallium nitride thiab silicon. Tab sis PLEDs yog ua los ntawm polymers. Cov polymers no feem ntau yog ua los ntawm cov chains ntev ntawm kev rov ua dua tshiab. Nws muab lawv cov khoom tshwj xeeb.

PLEDs siv lub teb hluav taws xob los txhawb cov electrons hauv cov khoom siv polymer. Qhov no ua rau lawv emit teeb. Los ntawm kev kho cov tshuaj pleev ib ce ntawm cov khoom siv polymer, PLED tuaj yeem kho cov xim ntawm lub teeb nws tawm.

Ib qho ntawm qhov zoo ntawm PLEDs yog tias lawv tuaj yeem tsim tau siv cov txheej txheem ua haujlwm qis, yob-rau-yob. Qhov no ua rau lawv scalable heev thiab raug nqi. Qhov no tau ua rau lawv siv cov teeb pom kev zoo, cov khoom siv, thiab cov khoom siv hluav taws xob.

Lwm qhov zoo ntawm PLEDs yog tias lawv tuaj yeem ua tau yooj yim thiab ua tau raws. Qhov no ua rau lawv zoo tagnrho rau cov khoom siv hluav taws xob hnav, xws li cov khaub ncaws ntse thiab cov tawv nqaij-mounted sensors.

5. Quantum Dot LEDs (QD-LEDs)

Quantum Dot LEDs (QD-LEDs) siv nanocrystals hu ua quantum dots los tsim lub teeb. Cov dots no feem ntau yog ua los ntawm cov khoom siv semiconductor. Thiab nws qhov loj me yog li ntawm 2 txog 10 nanometers. Hauv QD-LED, quantum dots yog sandwiched ntawm ob lub electrodes. Ib qho hluav taws xob tam sim no dhau los ntawm lawv, uas ua rau cov electrons hauv cov dots. Thaum cov electrons zoo siab rov qab los rau hauv lawv lub xeev hauv av, lawv tso lub zog rau hauv daim ntawv ntawm lub teeb. Qhov loj ntawm quantum dot txiav txim siab xim ntawm lub teeb tsim. Cov dots me me tsim lub teeb xiav, thiab cov dots loj tsim teeb liab. Thiab qhov nruab nrab qhov loj me tsim teeb ntsuab thiab daj.

Ib qho ntawm qhov zoo ntawm QD-LEDs teeb pom kev zoo yog nws lub peev xwm los tsim ntau yam xim. Lawv kuj tsim kom raug thiab ua tau zoo dua. Qhov no yog vim qhov loj ntawm quantum dots tuaj yeem tswj tau meej. Qhov no tso cai rau kom meej meej tuning ntawm lub teeb emitted. Tsis tas li ntawd, QD-LEDs muaj lub neej ntev dua thiab siv zog tsawg dua. Qhov no ua rau lawv ntau tus phooj ywg ib puag ncig.

Txawm li cas los xij, QD-LEDs tseem yog cov thev naus laus zis tshiab thiab tseem tsis tau muaj dav dav. Kuj tseem muaj kev txhawj xeeb txog qhov muaj peev xwm toxicity ntawm cov khoom siv semiconductor siv los tsim cov quantum dots. Cov no feem ntau yog ua los ntawm cadmium lossis lwm yam hlau hnyav. Kev tshawb fawb rau QD-LEDs txuas ntxiv mus. Cov kws tshawb fawb tab tom tsim cov ntaub ntawv muaj kev nyab xeeb dua thiab zoo ib puag ncig rau cov khoom siv no.

6. Ultraviolet LEDs (UV-LEDs)

Ultraviolet LEDs (UV-LEDs) emit ultraviolet (UV) lub teeb. Nws yog invisible rau tib neeg lub qhov muag. UV-LEDs tsim lub teeb nyob rau hauv ultraviolet spectrum. Lawv feem ntau yog nruab nrab ntawm 280 thiab 400 nanometers (nm). Ntxiv mus, nws tau muab faib ua peb pawg: 

1. UV-A (315-400 nm)
2. UV-B (280-315 nm)
3. UV-C (100-280 nm)

UV-LEDs yog siv nyob rau hauv ntau yam kev siv, xws li kho, kom tsis muaj menyuam, thiab dej purification. Lawv feem ntau yog siv los kho cov nplaum thiab cov coatings hauv kev tsim hluav taws xob. Tsis tas li ntawd, lawv tuaj yeem siv los kho cov kua nplaum thiab cov coatings hauv kev lag luam luam ntawv thiab hauv kev lag luam automotive thiab aerospace. Tsis tas li ntawd, lawv yog qhov zoo tshaj plaws hauv kev kho mob rau kev ua kom tsis muaj menyuam thiab cov chaw.

Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias UV teeb, suav nrog cov UV-LEDs, tuaj yeem ua rau tib neeg noj qab haus huv. Kev raug UV teeb tuaj yeem ua rau qhov muag puas thiab mob qog noj ntshav. Yog li, koj yuav tsum siv cov cuab yeej tiv thaiv kom zoo thaum ua haujlwm nrog UV-LEDs. Thiab nws yog ib qho yuav tsum ua raws li cov lus qhia kev nyab xeeb uas cov chaw tsim khoom muab.

Yog xav paub ntxiv, koj tuaj yeem nyeem Qhov txawv ntawm UVA, UVB, thiab UVC yog dab tsi?

LEDs ua li cas?

Cov txheej txheem tsim khoom rau LEDs yog qhov nyuaj heev. Nws suav nrog kev sib xyaw ua ke ntawm kev npaj wafer, etching, encapsulation, thiab lwm yam. Nws kuj muaj xws li ntim tshuab. Tab sis kuv yuav piav qhia lawv kom ntxaws, tab sis ua ntej ntawd, cia peb paub txog cov khoom siv hauv cov txheej txheem no-

Cov khoom siv hauv LED Manufacturing

Cov khoom siv hauv LED tsim ua lub luag haujlwm tseem ceeb. Lawv txiav txim siab qhov ua tau zoo thiab cov yam ntxwv ntawm LED. Nov yog qee cov ntaub ntawv qhia tseeb txog cov khoom siv hauv kev tsim LED:

• Gallium Nitride (GN) yog cov khoom siv dav siv hauv LED kev tsim khoom. GaN yog ib yam khoom siv semiconductor muaj peev xwm ntawm emitting xiav thiab ntsuab teeb. Lawv yog qhov tseem ceeb rau kev tsim cov LEDs dawb. Nws kuj tseem siv los ua cov khoom siv substrate hauv LED tsim.

• Indium Gallium Nitride (InGaN) yog ternary semiconductor khoom. Nws ua rau xiav, ntsuab, thiab dawb LEDs. Nws kuj tseem siv rau hauv kev tsim cov laser diodes.

• Aluminium Gallium Indium Phosphide (AlGaInP) yog quaternary semiconductor khoom. Nws yog siv los tsim cov xim liab, txiv kab ntxwv, thiab daj LEDs. Nws kuj yog siv nyob rau hauv high-brightness LED daim ntaub ntawv xws li tsheb thiab tsheb teeb pom kev zoo.

• Sapphire yog ib tug nrov substrate khoom nyob rau hauv LED manufacturing. Nws yog cov khoom siv zoo, ib leeg-crystal. Yog li, nws muab lub hauv paus ruaj khov rau kev loj hlob GaN muaju.

• Silicon Carbide (SiC) yog ib tug dav-bandgap semiconductor khoom siv nyob rau hauv high-power LED daim ntaub ntawv. Nws kuj tseem siv rau hauv kev tsim cov khoom siv hluav taws xob hluav taws xob thiab cov ntawv thov kub.

• Phosphor yog cov ntaub ntawv uas hloov xiav lossis UV teeb tawm los ntawm LEDs rau hauv lwm cov xim. Cov ntaub ntawv no feem ntau yog siv los tsim cov LEDs dawb.

• Tooj yog siv los ua cov khoom siv hluav taws xob hauv hluav taws xob hauv LED. Nws yog ib qho zoo heev conductor ntawm tshav kub thiab pab dissipate lub tshav kub generated los ntawm LED.

• kub yog siv los ua cov khoom siv hlau sib txuas hauv LED tsim. Nws yog ib qho zoo heev conductor ntawm hluav taws xob thiab muaj zoo corrosion kuj.

Cov txheej txheem tsim khoom LED

Cov txheej txheem tsim LED feem ntau suav nrog cov kauj ruam hauv qab no:

Kauj ruam 1: Kev npaj wafer

Thawj kauj ruam hauv kev tsim LED yog los npaj cov khoom siv substrate los ntawm kev ntxuav thiab polishing nws. Tom qab ntawd lub substrate yog coated nrog ib tug nyias cov ntaub ntawv uas hu ua ib tug buffer txheej. Qhov no yuav pab txo qhov tsis xws luag thiab txhim kho qhov zoo ntawm LED.

Kauj ruam 2: Epitaxy

Cov kauj ruam tom ntej yog epitaxy. Nws suav nrog kev loj hlob ntawm cov khoom siv semiconductor rau saum cov substrate. Qhov no feem ntau ua tiav siv Hlau Organic Chemical Vapor Deposition (MOCVD). Ntawm no yog qhov sib xyaw ntawm cov roj av uas muaj cov khoom siv semiconductor yog cua sov. Thiab tom qab ntawd nws muab tso rau hauv lub substrate. Lub thickness ntawm txheej epitaxial txiav txim lub wavelength ntawm lub teeb uas lub LED yuav emit.

Kauj ruam 3: Doping

Thaum cov txheej epitaxial tau loj hlob, nws yog doped nrog impurities los tsim P-hom thiab N-hom cheeb tsam. Qhov no feem ntau yog ua los ntawm cov txheej txheem ion implantation. Ntawm no ions ntawm impurities yog cog rau hauv cov khoom siv semiconductor siv cov kab hluav taws xob siab.

Kauj ruam 4: Daim ntawv cog lus

Tom qab doping, LED yog coated nrog ib txheej ntawm hlau los tsim hluav taws xob tiv tauj. Cov hlau feem ntau tso rau hauv LED siv cov txheej txheem hu ua sputtering. Ntawm no lub teeb hluav taws xob siab ntawm ions tso cov hlau mus rau LED.

Kauj ruam 5: Etching

Hauv cov kauj ruam no, photolithography tsim cov qauv ntawm LED nto. Ib txheej txheej photoresist tso rau ntawm LED. Tom qab ntawd ib tug qauv yog etched rau hauv lub photoresist siv ultraviolet lub teeb. Cov qauv yog ces pauv mus rau LED nto siv qhuav etching. Ntawm no plasma yog siv los tshem tawm cov khoom siv semiconductor.

Kauj ruam 6: Encapsulation

Kauj ruam thib rau hauv kev tsim LED yog encapsulation. Ntawm no lub LED yog encapsulated nyob rau hauv ib lub pob uas tiv thaiv nws los ntawm ib puag ncig thiab pab nws dissipate tshav kub. Cov pob no feem ntau yog ua los ntawm epoxy, nchuav hla lub LED, thiab kho kom tsim tau ib qho nyuaj, tiv thaiv lub plhaub. Lub pob kuj suav nrog cov xov tooj hluav taws xob uas txuas rau LED mus rau lub zog hluav taws xob.

Cov kauj ruam kawg: Kev sim

Thaum kawg, cov LEDs ntim tau raug sim kom ntseeg tau tias lawv ua tau raws li qhov xav tau ci ntsa iab. Tsis tas li ntawd, nws ua kom cov xim thiab kev ua haujlwm zoo. Txhua yam khoom siv tsis raug raug muab pov tseg, thiab cov khoom siv ntxiv raug xa mus rau cov neeg siv khoom.

Qhov sib txawv ntawm LEDs thiab cov teeb pom kev zoo li qub

LEDs muaj txiaj ntsig zoo thiab siv zog tsawg dua piv rau cov teeb pom kev zoo ib txwm muaj. Lawv kuj muaj lub neej ntev dua, txog li 50,000 teev, thiab tsim kom muaj cua sov tsawg. LED teeb muaj nyob rau hauv ntau yam xim thiab muab lub teeb zoo. Lawv kuj yog me me thiab compact thiab tuaj nyob rau hauv ntau yam duab. Ntxiv mus, LED teeb yog ib puag ncig tus phooj ywg thiab tsis muaj cov khoom lom.

Ib txwm siv lub teeb ci, ntawm qhov tod tes, tsis tshua muaj txiaj ntsig thiab siv zog ntau dua. Lawv muaj lub neej luv luv, txog li 10,000 teev, thiab ua kom muaj cua sov loj. Lawv kuj muaj qhov txwv ntau ntawm cov xim muaj. Cov khoom siv teeb pom kev zoo yog qhov loj thiab tuaj nyob rau hauv cov duab txwv. Lawv muaj cov tshuaj lom thiab muaj kev cuam tshuam rau ib puag ncig.

LEDs yog tam sim ntawd rau thiab tawm thiab yuav tsum tau saib xyuas tsawg. Lawv kuj tau sib xws nrog kev tswj hluav taws xob thiab yog dimmable nrog kev tswj tau zoo. Txawm li cas los xij, lawv muaj tus nqi pib dua, tab sis lawv pheej yig dua nyob rau lub sijhawm ntev. Cov chaw teeb pom kev zoo ib txwm muaj tus nqi pib qis dua tab sis tus nqi khiav haujlwm ntau dua. Thiab nws yuav tsum muaj kev saib xyuas siab. Yog li, nws muaj kev sib raug zoo nrog kev tswj hluav taws xob. Thiab muaj peev xwm dimming tsawg.

Yog xav paub ntxiv, koj tuaj yeem nyeem Qhov zoo thiab qhov tsis zoo ntawm LED teeb pom kev zoo.

Nkag siab txog LED Performance 

Kev nkag siab txog kev ua haujlwm ntawm LED tuaj yeem yog qhov nyuaj. Nws suav nrog ntau yam kev qhia tshwj xeeb, yam, thiab cov txheej txheem kuaj. Cia peb tham txog qee qhov tseem ceeb ntawm LED specifications thiab cov yam ntxwv cuam tshuam rau LED kev ua tau zoo. Thiab kuj LED kuaj thiab ntawv pov thawj.

LED Specifications

Nov yog cov ntsiab lus ntawm LED specification:

• Luminous Flux

Luminous flux ntsuas tus nqi ntawm lub teeb pom kev tawm los ntawm LED qhov chaw. Chav tsev ntawm kev ntsuas rau luminous flux yog lumen (lm). Tus nqi lumen siab dua qhia tau tias lub teeb ci dua LED. Txawm li cas los xij, tus nqi luminous flux ib leeg tsis muab cov ntaub ntawv hais txog qhov zoo ntawm lub teeb tawm. Lwm yam muaj nyob rau qhov ntawd, piv txwv li, xim rendering, zog efficiency, thiab lwm yam.

Yog xav paub ntxiv, koj tuaj yeem nyeem hauv qab no:

Candela vs Lux vs Lumens.

Lumen rau Watts: Phau Ntawv Qhia Tag Nrho

Kelvin thiab Lumens: Nkag siab qhov txawv

• Luminous Efficiency

Lub luminous kev ua tau zoo ntawm LED qhov ntsuas qhov pom ntau npaum li cas nws tsim. Nws ntsuas kev siv hluav taws xob hauv ib chav tsev ntawm lub sijhawm. Chav ntsuas ntsuas rau luminous efficiency yog lumen ib watt (lm / W). Tus lej luminous ntau dua txhais tau hais tias LED muaj txiaj ntsig zoo dua thiab ua rau lub teeb ntau dua rau txhua lub zog nws siv. LEDs nrog kev ua haujlwm siab dua tuaj yeem txuag hluav taws xob thiab txo cov nqi khiav lag luam.

• Xim kub

Cov xim kub ntsuas lub teeb pom ntawm cov xim los ntawm LED qhov chaw. Kelvin yog ib chav ntsuas rau xim kub (K). LEDs tuaj yeem tawm lub teeb nyob rau hauv ntau yam xim kub. Nws tuaj yeem ua tau los ntawm sov dawb (2700K-3000K) rau txias dawb (5000K-6500K). Tus nqi qis xim kub qhia tau tias qhov sov dua (daj) lub teeb. Nyob rau tib lub sijhawm, qhov siab dua qhia tias lub teeb txias (xiav) lub teeb.

Yog xav paub ntxiv, koj tuaj yeem nyeem hauv qab no:

Yuav ua li cas xaiv LED Sawb Xim Kub?

Xim kub zoo tshaj plaws rau LED Chaw Ua Haujlwm Teeb Pom Kev

• Xim Rendering Index (CRI)

Xim rendering Performance index (CRI) ntsuas qhov zoo ntawm LED qhov tuaj yeem ua xim piv rau lub teeb ntuj. Tus nqi CRI yog li ntawm 0 txog 100, nrog rau tus nqi siab dua qhia tau tias muaj xim zoo dua. Ib qho LED nrog tus nqi CRI ntawm 80 lossis siab dua feem ntau muaj xim zoo nkauj. Hauv qhov sib piv, LED nrog tus nqi CRI qis dua 80 tuaj yeem tsim cov xim txawv.

• Forward Voltage

Forward voltage yog qhov hluav taws xob yuav tsum tau qhib lub LED thiab ua kom nws tawm lub teeb. Chav tsev ntawm kev ntsuas rau pem hauv ntej voltage yog volt (V). Lub zog hluav taws xob tom ntej ntawm LED sib txawv nyob ntawm seb hom LED thiab txheej txheem tsim khoom.

• Rov qab Current Leakage

Rov qab tam sim no to yog qhov tam sim no uas ntws los ntawm LED nyob rau hauv qhov kev taw qhia rov qab. Nws tshwm sim thaum voltage yog thov nyob rau hauv lub opposite kev taw qhia. Qhov thim rov qab tam sim no ntawm ib qho LED yuav tsum tsawg li sai tau kom paub meej tias kev ua haujlwm zoo thiab lub neej ntev.

Cov yam ntxwv cuam tshuam rau LED kev ua haujlwm

LEDs, los yog Lub Teeb Emitting Diodes, tau dhau los ua kev xaiv nrov. Lawv muaj kev ua haujlwm siab, lub neej ntev, thiab kev siv hluav taws xob tsawg. Txawm li cas los xij, muaj ntau yam uas tuaj yeem cuam tshuam qhov LEDs ua tau zoo, xws li:

• Kev Tswj Xyuas Thermal

Ib qho tseem ceeb cuam tshuam rau kev ua haujlwm ntawm LEDs yog lawv lub peev xwm los tswj cov cua sov. LEDs yog cov khoom siv kub-rhiab heev. Yog tias lawv tsis txias txaus, lawv tuaj yeem raug degradation. Qhov no yuav txo tau efficiency thiab shorten lub lifespan. Yog li ntawd, nws yog ib qho tseem ceeb los xyuas kom meej qhov zoo thermal tswj kom tswj tau qhov LED qhov kev ua tau zoo.

• Tsav tam sim no

Lwm qhov tseem ceeb uas cuam tshuam rau kev ua haujlwm ntawm LED yog qhov tsav tam sim no. LEDs ua haujlwm ntawm ib theem tam sim no. Tshaj qhov tam sim no tuaj yeem txo lawv txoj sia, txo kev ua haujlwm, thiab ua rau tsis ua haujlwm. Ntawm qhov tod tes, kev tsav tsheb qis dua ib qho LED tuaj yeem ua rau lub teeb tso zis qis dua thiab lub neej luv dua. Yog li ntawd, nws yog ib qho tseem ceeb kom tswj tau qhov tseeb tsav tam sim no kom ntseeg tau tias kev ua haujlwm zoo ntawm LED.

• laus

Zoo li lwm yam khoom siv hluav taws xob, LEDs kuj raug kev laus. Qhov no tuaj yeem cuam tshuam rau lawv qhov kev ua tau zoo dhau sijhawm. Raws li LEDs muaj hnub nyoog, lawv cov efficiency txo, thiab lawv lub teeb tso zis tsawg. Cov txheej txheem no hu ua lumen depreciation. Thiab nws tuaj yeem ua kom nrawm dua los ntawm kev raug tshav kub, av noo, thiab lwm yam ib puag ncig. Yog li ntawd, nws yog ib qho tseem ceeb los xav txog qhov kev cia siab lifespan ntawm LED. Tsis tas li, xav txog nws qhov kev xav tau degradation thaum tsim lub teeb pom kev zoo.

• Xim hloov

Lwm qhov cuam tshuam rau kev ua haujlwm ntawm LED yog kev hloov xim. LED cov xim hloov thaum lub sij hawm vim kev hloov ntawm cov khoom siv phosphor. Qhov no tuaj yeem ua rau muaj kev hloov xim tsis zoo hauv lub teeb pom kev zoo. Qhov no ua rau nws tsis txaus siab lossis txawm siv tsis tau rau nws lub hom phiaj.

• Optics

Cov optics siv hauv LED teeb pom kev zoo kuj tuaj yeem cuam tshuam nws qhov kev ua tau zoo. Optics tsim nyog tuaj yeem pab faib lub teeb sib npaug. Yog li, nws maximizes efficiency ntawm LED. Hauv qhov sib piv, cov optics tsis zoo tuaj yeem ua rau lub teeb ploj lossis tawg. Nws txo qhov system tag nrho cov efficiency.

LED Testing thiab Certification

LED daim ntawv pov thawj lees paub tias cov khoom siv LED ua tau raws li kev lag luam zoo thiab kev nyab xeeb. Nws kuj txheeb xyuas cov qauv kev ua haujlwm. Kev lees paub feem ntau yog ua los ntawm cov koom haum thib peb sab nraud uas tshwj xeeb hauv kev sim thiab ntawv pov thawj.

• IESNA LM-80 UAS

IESNA LM-80 yog tus qauv ntsuas lub lumen depreciation ntawm LED khoom nyob rau lub sijhawm. Nws kuj ntsuas qhov kev ua tau zoo raws li kev ua haujlwm sib txawv. Cov qauv no pab kom ntseeg tau tias cov khoom siv LED tswj lawv qhov zoo & ci ntsa iab dhau lub sijhawm siv ntev. 

• ZOG ENAR

ENERGY STAR yog ib qho kev pabcuam uas tau lees paub cov khoom siv LED uas ua tau raws li kev siv zog thiab kev ua haujlwm zoo. LED cov khoom uas tau txais ENERGY STAR ntawv pov thawj feem ntau siv zog ntau dua li cov khoom tsis muaj ntawv pov thawj. Yog li, nws tuaj yeem pab cov neeg siv khoom txuag nyiaj ntawm cov nqi hluav taws xob. ENERGY STAR certification kuj qhia tau hais tias ib yam khoom ua tau raws li cov qauv siab rau kev ua tau zoo thiab zoo.

• Lwm Cov Ntawv Pov Thawj

Ntxiv rau ENERGY STAR, muaj lwm cov ntawv pov thawj rau cov khoom siv LED. Lawv suav nrog DLC ​​(DesignLights Consortium) thiab UL (Underwriters Laboratories). DLC ntawv pov thawj yog tsom rau kev siv hluav taws xob. Nws yog feem ntau yuav tsum tau rau cov khoom LED kom tsim nyog rau cov nqi them rov qab. UL daim ntawv pov thawj qhia tias cov khoom siv LED tau raug kuaj thiab ua tau raws li cov qauv kev nyab xeeb.

Yog xav paub ntxiv, koj tuaj yeem nyeem Daim ntawv pov thawj ntawm LED Sawb Teeb.

Common Applications ntawm LEDs

Qee qhov teeb meem tshwm sim txog LEDs yog:

Teeb pom kev zoo thiab teeb pom kev zoo

LEDs yog dav siv nyob rau hauv daim ntawv thov nyob. Piv txwv li, recessed, taug qab, thiab hauv qab txee teeb pom kev zoo. Lawv muaj zog-npaum thiab kav ntev. Nws ua rau lawv xaiv qhov zoo tshaj plaws rau tsev neeg tab tom nrhiav kom txo qis kev siv hluav taws xob. Tsis tas li ntawd, nws txuag nyiaj ntawm cov nqi hluav taws xob.

LEDs kuj tseem siv tau rau hauv kev lag luam teeb pom kev zoo. Lawv tuaj yeem yog chaw ua haujlwm, khw muag khoom, lossis cov khoom lag luam teeb pom kev zoo. Lawv muab lub teeb ci, zoo ib yam uas tuaj yeem pab txhim kho cov khoom tsim tau. Tsis tas li ntawd, lawv tsim ib qho chaw txais tos rau cov neeg siv khoom.

LEDs tau nce siv hauv kev siv teeb pom kev zoo sab nraum zoov. Piv txwv li, cov teeb pom kev zoo, teeb chaw nres tsheb, thiab teeb pom kev zoo nkauj. Lawv muaj zog-npaum, ruaj khov, thiab tuaj yeem tiv taus huab cua huab cua. Qhov no ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau kev siv sab nraum zoov.

Zaub Technology

Ib qho ntawm cov kev siv ntau tshaj plaws ntawm LEDs hauv kev siv thev naus laus zis yog digital signage. Cov kev qhia no yog siv rau cov ntaub ntawv, kev tshaj tawm, thiab kev lom zem hauv thaj chaw pej xeem. LED-raws li digital signage yog nyiam vim nws tuaj yeem tsim qhov sib txawv. Nws kuj muaj cov duab daws teeb meem siab nrog cov xim ci ntsa iab uas pom tau txawm tias nyob hauv lub hnub ci ci. Qhov no ua rau lawv zoo meej rau kev tshaj tawm sab nraum zoov.

Lwm daim ntawv thov nrov ntawm LEDs hauv kev siv thev naus laus zis yog hauv TV teeb. LED TVs siv LEDs los teeb lub vijtsam. Nws muab cov duab zoo dua qub thiab zoo sib xws. LEDs kuj ua rau TVs zog-ntau dua li ib txwm LCD TVs. Qhov no ua rau lawv ntau eco-phooj ywg.

LEDs kuj tseem siv rau hauv computer saib, laptops, thiab mobile devices. LED-raws li cov lus qhia yog nyias, sib dua, thiab siv lub zog tsawg dua li cov duab ib txwm muaj. Qhov no ua rau lawv zoo tagnrho rau cov khoom siv portable.

Hauv kev lag luam kev lom zem, LEDs tau siv rau hauv cov lus qhia loj xws li phab ntsa, pem teb, thiab qab nthab. Cov yeeb yaj kiab no muab cov kev paub dhau los rau cov neeg tuaj saib. Nws zoo siab rau cov neeg tuaj saib, txawm nyob hauv concerts, ntaus pob ncaws pob, lossis chaw ua si. Lawv tuaj yeem raug kho kom pom ntau yam xim thiab qauv. Qhov no ua rau lawv zoo tagnrho rau kev tsim kom muaj zog thiab ua kom pom cov teebmeem.

Automotive kev lag luam

Ua ntej thiab foremost, LEDs feem ntau siv nyob rau hauv tsheb teeb pom kev zoo. Lawv yog siv rau lub teeb taub hau, taillights, nres teeb, tig teeb liab, thiab teeb pom kev zoo sab hauv. Lwm daim ntawv thov ntawm LEDs hauv kev lag luam tsheb yog cov duab dashboard. Tsis tas li ntawd, cov cuab yeej pab pawg. LED zaub muab cov ntaub ntawv meej, ci, thiab kho kom haum rau cov neeg tsav tsheb. Lawv tuaj yeem raug teeb tsa los qhia cov ntaub ntawv xws li ceev, qib roj, thiab lub cav xwm txheej, thiab lwm yam.

LEDs kuj tseem siv rau hauv kev nyab xeeb nta hauv tsheb. Lawv suav nrog cov teeb ua haujlwm nruab hnub, hloov lub taub hau, thiab lub koob yees duab thaub qab. Lub teeb ua haujlwm nruab hnub ua kom pom kev pom ntawm lub tsheb thaum nruab hnub. Nyob rau tib lub sijhawm, kev hloov pauv lub taub hau hloov raws li qhov ceev thiab lub kauj lub kaum sab xis ntawm lub tsheb los muab cov teeb pom kev zoo tshaj plaws. Thiab cov koob yees duab thaub qab siv LEDs los muab cov duab meej thiab ci ntsa iab hauv cov teeb pom kev tsawg.

LEDs kuj tseem siv rau sab nrauv styling ntawm tsheb. Tsis tas li ntawd, lawv tuaj yeem siv rau cov teeb pom kev zoo ntawm lub tsheb lub cev thiab cov cim logo thiab cov ntawv cim. Ntxiv mus, LED teeb pom kev zoo tuaj yeem tsim teeb pom kev zoo. Piv txwv li, cov kab sib txuas ua ke thiab cov teeb pom kev zoo nkauj.

Khoom siv kho mob

Cov hauv qab no yog qee cov qauv siv ntawm LEDs hauv cov khoom siv kho mob:

• Cov duab kho mob: Kev siv cov LEDs hauv cov khoom siv kho mob yog nyob rau hauv cov tshuab X-ray, CT scanners, thiab MRI tshuab. LEDs yog siv los ua lub teeb pom kev zoo rau lub teeb pom kev ntawm lub cev. LED-raws li illumination muab cov duab zoo dua thiab ci dua. Qhov no tseem ceeb tshwj xeeb tshaj yog rau cov duab tsis sib xws.

• Endoscopes: LEDs yog siv nyob rau hauv endoscopes, uas yog siv rau minimally invasive phais. Endoscopes tau nruab nrog cov teeb me me LED uas teeb pom kev ntawm qhov chaw phais. Lub teeb ci uas tsim los ntawm LEDs muab cov duab meej ntawm qhov chaw phais. Nws ua rau cov kws phais mob ua cov txheej txheem ntau dua thiab raug.

• Surgical Headlights: LEDs yog siv rau hauv kev phais taub hau. Qhov no muab lub teeb ci, dawb kom pom qhov chaw phais. LED-raws li kev phais taub hau muaj ntau qhov zoo dua li cov teeb pom kev zoo halogen. Qhov no suav nrog kev ua neej ntev dua, tsim hluav taws xob qis dua, thiab ua kom muaj xim zoo dua.

• Phototherapy Devices: LEDs yog siv nyob rau hauv cov khoom siv phototherapy. Nws kho ntau yam ntawm daim tawv nqaij xws li psoriasis, eczema, thiab pob txuv. Lub teeb xiav tso tawm los ntawm LEDs muaj txiaj ntsig zoo hauv kev tua cov kab mob pob txuv. Hauv qhov sib piv, lub teeb liab zoo txo ​​qhov mob thiab txhawb kev kho qhov txhab.

• Khoom siv kho hniav: LEDs kuj tseem siv rau hauv cov khoom siv kho hniav, xws li kho lub teeb rau kev kho hniav. Cov teeb no ua rau lub teeb ci siab siv lub teeb. Qhov no activates cov resin nyob rau hauv cov hniav filling, ua rau lawv harden sai sai.

Kev Sib Txuas Lus Thiab Kev Tshaj Tawm

Ib qho ntawm cov kev siv ntau tshaj plaws ntawm LEDs hauv kev sib txuas lus thiab kev taw qhia yog nyob rau hauv teeb pom kev zoo. LED-raws li lub teeb tsheb muaj zog ntau dua li lawv cov khoom siv hluav taws xob. Nws kuj muaj lub neej ntev dua. Lawv pom ntau dua nyob rau hauv lub hnub ci ci. Lawv tuaj yeem tsim kho kom hloov xim sai dua li cov teeb pom kev zoo.

Lwm daim ntawv thov ntawm LEDs hauv kev teeb tsa yog nyob rau hauv tsheb xwm txheej ceev. Xws li cov tsheb tub ceev xwm, tsheb tua hluav taws, thiab tsheb thauj neeg mob. LED teeb yog ci thiab pom los ntawm qhov deb. Qhov no ua rau lawv muaj txiaj ntsig zoo thaum muaj xwm txheej ceev uas qhov kev ceeb toom ceev thiab meej yog qhov tseem ceeb.

Txoj kev khiav thiab navigation LED teeb kuj tseem siv rau hauv aviation thiab marine signaling. LEDs yog nyiam tshaj qhov muag teev hauv cov ntawv thov no. Vim lawv muaj zog dua, muaj zog-npaum, thiab muaj lub neej ntev dua. LEDs tseem tuaj yeem tso lub teeb rau hauv ib qho kev taw qhia tshwj xeeb. Qhov no ua rau lawv muaj txiaj ntsig hauv kev taw qhia kev taw qhia.

Hauv kev sib txuas lus, LEDs yog siv hauv kev sib txuas lus fiber ntau optic. Fiber optic cables xa cov ntaub ntawv los ntawm lub teeb pulses. Thiab LEDs yog siv los ua lub teeb ci rau cov tshuab no. LED-raws li fiber ntau optic systems muaj ntau npaum li cas thiab muaj ib tug bandwidth siab dua li ib txwm tooj liab-raws li kev sib txuas lus systems.

Kev kho ntawm LEDs

LEDs xav tau kev saib xyuas kom ntseeg tau tias kev ua haujlwm zoo. Nws xav tau kev saib xyuas rau lub neej ntev ib yam li lwm yam khoom siv hluav taws xob. Nov yog qee cov lus qhia rau kev tswj xyuas LEDs:

Ntxuav LEDs

• Siv Cov Kev Pab Cuam Tshuam Zoo: Kev zam cov tshuaj hnyav, xws li cov kuab tshuaj, yog qhov tseem ceeb thaum ntxuav LEDs. Qhov no tuaj yeem ua rau lub teeb pom kev zoo ntawm LED. Hloov chaw, siv cov tshuaj ntxuav me me lossis isopropyl cawv. Xyuas kom meej tias cov tshuaj ntxuav yog dawb los ntawm cov khoom abrasive.

• Siv Cov Cuab Yeej Zoo: Txhawm rau ntxuav LEDs, siv cov ntaub mos mos, tsis muaj lint, xws li microfiber lossis lens ntxuav ntaub. Tsis txhob siv cov khoom ntxhib lossis abrasive zoo li cov ntaub so ntswg. Qhov no tuaj yeem khawb qhov LED nto.

• Ua Siab Ncaj: Thaum ntxuav LEDs, ua tib zoo saib xyuas thiab tsis txhob siv lub zog ntau dhau rau saum npoo ntawm LED. Tsis txhob kov LED nrog ntiv tes liab qab. Cov roj thiab cov kab mob ntawm daim tawv nqaij tuaj yeem hloov mus rau qhov chaw LED. Nws txo cov brightness thiab lifespan.

Kev teeb tsa LEDs

Kev tuav LEDs kuj tseem ceeb heev kom ntseeg tau tias lawv lub neej ntev. Nov yog qee cov lus qhia rau kev tuav LEDs:

• Tsis txhob kov lub LED: Thaum tuav LEDs, nws yog ib qho tseem ceeb kom tsis txhob kov lub npoo ntawm LED nrog koj txhais tes liab qab. Cov roj thiab av ntawm koj txhais tes tuaj yeem ua rau LED puas. Hloov chaw, siv hnab looj tes lossis ntaub huv, tsis muaj lint-dawb los tuav lub LED.

• Tsis txhob nthuav tawm LEDs rau cov dej noo: Cov dej noo tuaj yeem ua rau LED puas. Yog li ntawd, tsis txhob nthuav tawm cov LED kom ya raws thaum tuav yog qhov tseem ceeb.

• Tsis txhob tso cov LEDs kom sov: LEDs yog rhiab heev rau cua sov, thiab raug rau kub kub yuav ua rau lawv puas. Yog li ntawd, tsis txhob nthuav tawm cov LED kom kub siab thaum tuav yog qhov tseem ceeb.

• Khaws LEDs kom zoo: LEDs yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav kom tsis txhob raug tshav kub thiab ya raws.

Kev daws teeb meem ntawm LEDs

Zoo li txhua yam thev naus laus zis, LED teeb pom kev zoo kuj muaj nws cov teeb meem ncaj ncees. Kuv yuav tham txog qee qhov teeb meem feem ntau nrog LED teeb pom kev zoo thiab yuav daws lawv li cas.

1. Cais

LED teeb yuav flicker, tshwj xeeb tshaj yog thaum lawv qhib thawj zaug. Nws yog annoying thiab distracting. Ntau yam tuaj yeem ua rau qhov teeb meem no. Lawv suav nrog qhov hloov tsis tau dimmer thiab tus tsav tsheb tsis raug. Los yog nws tuaj yeem yog cov khoom siv hluav taws xob lossis kev teeb tsa tsis raug.

Txhawm rau txhim kho qhov teeb meem no, xyuas kom meej tias lub dimmer hloov tau sib xws nrog LED teeb. Hloov tej yam faulty Cheebtsam, thiab xyuas kom meej lub teeb pom kev zoo fixture installation.

2. Glare

LED teeb tuaj yeem tsim ntsia, uas tuaj yeem ua rau tsis xis nyob thiab ua rau qhov muag tsis pom kev. Ntau yam tuaj yeem ua rau qhov teeb meem no. Xws li qhov chaw ntawm lub teeb fixture, hom teeb siv, thiab tsim.

Txhawm rau daws qhov teeb meem no, siv cov frosted lossis diffused lo ntsiab muag kom txo qis glare. Kho qhov chaw ntawm lub teeb fixture, thiab xaiv qhov muag teev nrog qis brightness.

3. Xim kub tsis raug

LED teeb tuaj yeem tsim lub teeb nrog cov xim sib txawv. Nws tuaj yeem cuam tshuam rau ib puag ncig thiab ambiance ntawm chav tsev. Piv txwv li, qee lub teeb LED yuav ua rau lub teeb hnyav, xiav-dawb uas tuaj yeem ua rau tsis pom kev. Ib zaug ntxiv, xaiv cov xim sov rau lub teeb pom kev hauv chaw ua haujlwm yuav ua rau cov neeg ua haujlwm tsaug zog. 

Txhawm rau daws qhov teeb meem no, xaiv LED teeb nrog cov xim kub uas haum rau qhov xav tau ntawm chav tsev. Piv txwv li, lub teeb sov, daj daj tuaj yeem haum rau chav pw. Hauv qhov sib piv, lub teeb txias, xiav-dawb yuav haum rau qhov chaw ua haujlwm lossis chaw kawm.

4. Thaum tshav kub kub

LED teeb tuaj yeem tsim cov cua sov, txo lawv txoj sia thiab kev ua haujlwm. Ntau yam tuaj yeem ua rau qhov teeb meem no. Piv txwv li, qhov cua txias tsis txaus lossis qhov cua. Tsis tas li ntawd, muaj peev xwm ua tau qhov kub thiab txias ambient ntau dhau lawm.

Xyuas kom cov LED teeb tau txias txaus thiab cua tshuab los daws qhov teeb meem no. Tsis txhob muab tso rau hauv qhov chaw uas muaj qhov kub thiab txias. Tsis tas li ntawd, xyuas kom meej tias cov dej ntws tam sim no nyob rau hauv qhov kev pom zoo.

5. compatibility

LED teeb yuav tsis sib haum nrog cov teeb pom kev zoo lossis cov tshuab uas twb muaj lawm. Qhov no ua rau lawv lub installation thiab siv nyuaj. Ntau yam tuaj yeem ua rau qhov teeb meem no, piv txwv li, qhov sib txawv ntawm qhov voltage, wattage, thiab tsim.

Txhawm rau daws qhov teeb meem no, xyuas kom meej tias LED teeb ua haujlwm nrog cov teeb pom kev zoo thiab cov khoom siv uas twb muaj lawm. Los yog xav txog kev hloov cov khoom siv thiab cov tshuab yog tias tsim nyog.

Nkag siab txog cov teeb meem no thiab siv cov kev ntsuas tsim nyog los tswj lawv. Yog li, koj tuaj yeem txaus siab rau ntau yam txiaj ntsig ntawm LED teeb pom kev zoo yam tsis muaj teeb meem.

Yog xav paub ntxiv, koj tuaj yeem nyeem Kev daws teeb meem LED Sawb teeb meem.

Kev txhim kho yav tom ntej hauv LED Technology

Cia peb saib yav tom ntej kev txhim kho hauv LED thev naus laus zis.

1. Kev txhim kho hauv Kev Siv Hluav Taws Xob

Nov yog qee qhov kev txhim kho tseem ceeb hauv kev siv hluav taws xob hauv kev txhim kho yav tom ntej hauv LED thev naus laus zis:

• Kev ua tau zoo dua

LED kev ua tau zoo ntsuas qhov ua tau zoo ntawm lub teeb ci hloov hluav taws xob mus rau lub teeb hluav taws xob. LED kev ua tau zoo tau txhim kho tsis tu ncua nyob rau hauv xyoo tas los no vim cov ntaub ntawv tshawb fawb. Tsis tas li ntawd, cov cuab yeej tsim kev nce qib txhim kho kev ua tau zoo. Piv txwv li, nws tab tom tsim cov khoom siv hluav taws xob tshiab, xws li Indium Gallium Nitride (InGaN). Nws tau ua rau muaj kev ua haujlwm siab dua xiav thiab ntsuab LEDs, uas yog cov khoom tseem ceeb hauv cov LEDs dawb. Thiab nyob rau hauv lub xyoo tom ntej no, ntau innovation yuav ua rau LEDs ntau npaum li cas. 

• Zoo dua Thermal Management

Raws li LEDs ua tau zoo dua, lawv kuj ua kom muaj cua sov ntau dua. Qhov no tuaj yeem txo lawv qhov kev ua tau zoo thiab kev ua neej nyob. Txawm li cas los xij, kev nce qib hauv cov txheej txheem kev tswj hwm thermal txhim kho qhov kev cia siab. Zoo li, zoo dua cua sov dab dej thiab cov ntaub ntawv nrog ntau dua thermal conductivity. Kev txhim kho ntawm cov txheej txheem no yuav ua rau cov tuam txhab LED txhim kho lawv cov kev ua tau zoo yav tom ntej. Nws tseem yuav txhim kho kev ntseeg siab ntawm lawv cov khoom.

• Smarter Control Systems

LED thev naus laus zis kuj tau pab los ntawm kev tswj hwm qib siab uas ua rau kev siv lub zog zoo tshaj plaws thiab pov tseg tsawg dua. Piv txwv li, LED teeb pom kev zoo tuaj yeem nruab nrog sensors. Cov sensors no ntes cov neeg nyob. Lawv kuj kho cov teeb pom kev zoo li qub. Yog li nws dims lub teeb nyob rau hauv teb rau tej yam ntuj tso teeb. Thiab nyob rau hauv xyoo tom ntej, peb cia siab tias yuav muaj ntau yam kev paub txog kev siv tshuab hauv LEDs.

• Kev koom ua ke nrog lwm yam technologies

Thaum kawg, LEDs tau nce ntxiv nrog lwm cov thev naus laus zis, xws li Internet ntawm Yam (IoT) sensors. Nws tsim cov teeb pom kev zoo ntse uas hloov kho qhov chaw hloov pauv thiab cov neeg siv xav tau. Qhov kev sib koom ua ke no tuaj yeem pab txuag hluav taws xob ntau dua los ntawm kev cia cov teeb pom kev zoo tswj tau ntau dua thiab ua tau zoo.

2. Kev nce qib hauv cov txheej txheem tsim khoom

Cia peb tham txog kev nce qib hauv kev tsim khoom. Cov kev nce qib no yog tsav kev txhim kho yav tom ntej hauv LED thev naus laus zis.

• Chip Scale Package (CSP) LEDs

CSP LEDs yog hom tshiab ntawm LED uas tshem tawm qhov xav tau ntawm cov khoom ntim khoom ib txwm muaj. Piv txwv li, txhuas thav duab thiab hlau daim ntawv cog lus. Qhov no txo ​​qhov loj thiab qhov hnyav ntawm LED, ua rau nws zoo tagnrho rau siv hauv cov khoom siv compact. CSP LEDs kuj muaj txiaj ntsig zoo dua, vim tias lawv muaj qhov luv luv rau tam sim no mus ncig. Lawv kuj txo lub zog poob.

Tsis tas li ntawd, kev tsim CSP LEDs xav tau cov cuab yeej tshwj xeeb. Piv txwv li, cov tshuab tuag-bonding thiab wafer-theem ntim tshuab. Niaj hnub no, lawv tau dhau los ua ntau dua.

Yog xav paub ntxiv, koj tuaj yeem nyeem CSP LED Sawb VS COB LED Sawb.

• Micro-LEDs

Txoj kev loj hlob ntawm cov txheej txheem tshiab colloidal synthesis thiab kev koom ua ke ntawm QDs rau hauv LED manufacturing tsav lub neej yav tom ntej ntawm LED technology. Micro-LEDs yog me dua li CSP LEDs, nrog qhov loj me ntawm tsawg dua 100 micrometers. Lawv muab cov kev daws teeb meem siab dua, cov xim ci dua, thiab qhov sib txawv zoo dua li cov LEDs ib txwm muaj. Kev tsim cov micro-LED yog qhov nyuaj vim lawv qhov me me. Txawm li cas los xij, kev txhim kho thev naus laus zis tau ua rau nws muaj peev xwm tsim tau ntau yam. Xws li microfabrication, lithography, thiab wafer bonding.

• Quantum Dots (QDs)

Quantum Dots yog semiconductor nanocrystals uas tawm lub teeb thaum txhawb los ntawm lub teeb ci. Lawv muab cov xim zoo dua thiab qhov ci ci dua li cov LEDs ib txwm muaj. Thiab lawv tuaj yeem raug kho kom tso tawm cov xim tshwj xeeb. QDs yog tsim los siv cov txheej txheem hu ua "colloidal synthesis." Nws koom nrog tsim kev ncua ntawm nanocrystals hauv cov kua. Tom qab ntawd cov nanocrystals tau muab tso rau hauv lub substrate los tsim cov LED. 

• 3D Printing

3D luam ntawv yog cov txheej txheem tsim khoom uas tsim cov khoom los ntawm txheej. Nws muaj kev yooj yim dua hauv kev tsim thiab muaj peev xwm los tsim cov duab nyuaj. 3D luam ntawv tuaj yeem siv los tsim kev cai LED duab thiab vaj tse. Nws txo qhov kev xav tau ntawm cov txheej txheem tsim khoom xws li kev txhaj tshuaj molding. 3D luam ntawv kuj tseem zoo ib puag ncig. Nws txo cov pov tseg thiab kev xav tau kev thauj mus los.

3. Qhov Muaj Peev Xwm rau Cov Khoom Siv Hluav Taws Xob Tag Nrho

Tag nrho cov organic LEDs (FOLEDs) yog ib hom OLED uas tsis tas yuav muaj cov khoom siv tsis zoo. Piv txwv li, hlau, uas yog feem ntau siv nyob rau hauv tsoos LED technology. FOLEDs muaj ntau qhov zoo dua li cov LEDs ib txwm muaj. Lawv hloov tau yooj yim dua, hnav, thiab siv zog tsawg dua li cov LEDs ib txwm muaj. Tsis tas li ntawd, FOLEDs tuaj yeem ua los ntawm cov khoom siv uas tsis muaj nqi thiab ib puag ncig zoo. Qhov no ua rau lawv muaj kev xaiv zoo rau kev tsim cov thev naus laus zis kom ruaj khov.

Cov kev siv tau ntawm FOLEDs yog qhov loj heev. Lawv suav nrog cov teeb pom kev zoo, cov lus qhia, thiab txawm tias siv tshuab siv tau. Hauv kev lag luam teeb pom kev zoo, FOLEDs muaj peev xwm los hloov cov teeb pom kev zoo ib txwm muaj. Nws tuaj yeem hloov cov qij fluorescent thiab incandescent. FOLEDs tuaj yeem ua rau nyias, hloov tau yooj yim. Qhov no ua rau lawv zoo tagnrho rau qhov chaw nkhaus lossis qhov tsis sib xws. Piv txwv li, architectural lossis automotive teeb pom kev zoo.

Hauv kev lag luam zaub, FOLEDs muaj ntau qhov zoo dua li cov duab LED. FOLEDs yog nyias, sib dua, thiab tsis muaj zog. Qhov no ua rau lawv zoo tagnrho rau cov khoom siv portable xws li smartphones thiab ntsiav tshuaj. Tsis tas li ntawd, FOLED cov lus qhia muab cov xim zoo dua thiab pom lub kaum ntse ntse. Yog li, lawv zoo tagnrho rau high-end zaub daim ntawv thov xws li TVs thiab computer saib.

FAQ

xaus

Nws yog ib qho tseem ceeb kom nco ntsoov tias LED thev naus laus zis tseem tab tom hloov zuj zus. Thiab muaj chav rau kev txhim kho hauv kev ua haujlwm, xim zoo, thiab pheej yig. Vim li no, cov kws tshawb fawb thiab engineers yeej ib txwm nrhiav txoj hauv kev los txhim kho LED thev naus laus zis. Lawv tab tom sim txhim kho nws cov kev ua tau zoo.

Raws li cov neeg siv khoom lossis tus tswv lag luam, kev nkag siab txog cov hauv paus ntawm LED thev naus laus zis tuaj yeem mus ntev. Nws tuaj yeem pab koj txiav txim siab xaiv thaum nws los mus yuav cov khoom siv teeb pom kev zoo. Los ntawm xim kub mus rau lumens, wattage, thiab CRI. Paub txog cov ntsiab lus no tuaj yeem pab koj nrhiav txoj hauv kev daws teeb meem LED teeb pom kev zoo.

Yog li ntawd, LEDs yog ib tug fascinating technology. Nrog lawv cov peev xwm txuag hluav taws xob, kav ntev, thiab ntau yam, LEDs yog lub teeb pom kev zoo uas nyob ntawm no.

LEDYi tsim cov khoom zoo LED strips thiab LED neon flex. Tag nrho peb cov khoom dhau los ntawm cov chaw soj nstuam high-tech los xyuas kom meej qhov zoo tshaj plaws. Dhau li ntawd, peb muab cov kev xaiv customizable ntawm peb LED strips thiab neon flex. Yog li, rau hwm LED sawb thiab LED neon flex, hu rau LEDYi ASAP!