Kev Ntsuam Xyuas Kaum Qhov Zoo Ntawm LED Backlight Technology

Hais txog tus nqi ntawm LED backlights thiab cov tsoos CCFL backlights, raws li LED backlight technology tau dhau los ua lub ntsiab lus niaj hnub no, nws tau lees paub los ntawm cov neeg siv khoom rau nws qhov zoo xws li mercury-free, tsawg zog noj, xim zoo, thiab lub neej ntev. Nyob rau tib lub sijhawm, tus nqi ntawm me me LED backlights tau maj mam nqis mus rau tus nqi ze ze ntawm CCFL backlights. Rau cov neeg siv khoom, muaj kev txuag hluav taws xob, ib puag ncig tus phooj ywg thiab cov khoom pheej yig yuav raug nrhiav los ntawm cov neeg siv khoom.

Nrog nws qhov tshwj xeeb thiab qhov zoo tshaj plaws, LED backlight thev naus laus zis tau maj mam qhia cov ntawv thov kev cia siab. Yog li, cia peb saib ze dua li cas LED backlight technology piv nrog CCFL backlight technology. Dab tsi yog qhov zoo ntawm LED backlight technology? Vim li cas nws thiaj li nrov hauv khw muag khoom?

LED backlight technology: Kaum qhov ua tau zoo

LED raws li lub teeb pom kev ntawm LCD, piv nrog cov cuab yeej siv hluav taws xob ib txwm muaj, ntxiv rau qhov zoo ntawm cov xim gamut, muaj ntau yam zoo, uas tuaj yeem muab faib ua kaum yam:

1) LED backlight muaj xim zoo dua gamut. Nws cov xim qhia muaj zog dua li ntawm CCFL backlight, uas tuaj yeem ua rau tsis muaj kua siv lead ua thev naus laus zis hauv cov xim ntawm cov xim, thiab cov xim luam tawm zoo dua.

2) Lub neej ua haujlwm ntawm LED tuaj yeem ntev li 100,000 teev. Txawm hais tias nws siv tsis tu ncua rau 10 teev hauv ib hnub, nws tuaj yeem siv tsis tu ncua rau 27 xyoo, uas ua rau lub neej ua haujlwm zoo ntawm LCD TVs thiab tuaj yeem tau txais txiaj ntsig zoo dua li cov tshuab ntshav ntshav.

3) Lub brightness kho qhov ntau yog loj. Nws yog ib qho yooj yim kom ua tiav LED lub zog tswj, tsis zoo li qhov tsawg kawg nkaus ci ntsa iab ntawm CCFL muaj qhov pib. Yog li ntawd, nws yog ib qho yooj yim rau cov neeg siv los kho qhov ci ntawm cov khoom siv rau qhov muag pom kev tshaj plaws, txawm nyob hauv qhov kaj sab nraum zoov lossis ib qho tsaus nti sab hauv tsev.

4) Zoo meej txav cov duab. Tsoos CCFL teeb muaj qhov flicker qis thiab lub teeb emission zaus, uas tuaj yeem ua rau lub vijtsam dhia thaum ua haujlwm dynamic scenes. LED backlight tuaj yeem hloov kho qhov luminous zaus, thiab qhov zaus ntau dua li ntawm CCFL, yog li nws tuaj yeem nthuav tawm cov duab zoo nkauj.

5) Kev tswj xyuas xim tiag tiag. Txij li thaum liab, ntsuab thiab xiav yog illuminated ntawm nws tus kheej, nws yog ib qho yooj yim los tswj cov yam ntxwv xim tam sim no.

6) adjustable backlight dawb tshuav nyiaj li cas thaum ua kom tag nrho qhov sib txawv. Thaum tus neeg siv' s video qhov hloov pauv ntawm lub khoos phis tawj thiab DVD player, qhov nyiaj tshuav dawb tuaj yeem hloov kho tau yooj yim ntawm 9600K thiab 6500K yam tsis muaj qhov ci ntsa iab thiab qhov sib txawv.

7) Nws tuaj yeem muab cov cheeb tsam txuas ntxiv array lub teeb rau lub vijtsam loj. LED yog lub teeb ci ntsa iab. Qhov yooj yim tshaj plaws lub teeb-emitting chav tsev yog ib lub square pob nrog ib sab ntev ntawm 3 ~ 5mm, uas yuav muab tau yooj yim ua ke los tsim ib tug nto lub teeb qhov chaw nrog ib tug predetermined cheeb tsam. Nws muaj zoo brightness uniformity. Yog tias nws yog siv los ua lub teeb pom kev zoo rau LCD TVs Source, qhov yuav tsum tau muaj cov khoom siv kho qhov muag tuaj yeem ua tau yooj yim heev, thiab qhov screen brightness uniformity tseem zoo dua.

8) Kev ruaj ntseg. Lub LED siv lub zog hluav taws xob tsawg ntawm 5 ~ 24V, uas muaj kev nyab xeeb heev, thiab kev tsim cov khoom siv hluav taws xob kuj yooj yim heev.

9) Kev tiv thaiv ib puag ncig. Lub teeb ci LED tsis tsim cov kab hluav taws xob lossis cov tshuaj lom neeg xws li mercury. Nws tuaj yeem piav qhia tias yog lub teeb ntsuab ntsuab thiab ib puag ncig tus phooj ywg.

10) Anti-seismic. Cov qauv qauv tso cai rau LED kom muaj cov qauv hauv nruab nrog ruaj khov thiab ua haujlwm zoo heev seismic.

Ib qho zoo ntawm LED backlight technology: kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig

LED backlight yog lub ntsiab lus ntawm LightEmittingDiode (lub teeb-emitting diode), lub teeb-emitting ntaus ntawv uas tuaj yeem hloov hluav taws xob ncaj qha rau hauv lub teeb lub zog.

Raws li lub cim tshiab ntawm LCD backlight vaj huam sib luag, nws muaj cov yam ntxwv zoo ntawm kev siv hluav taws xob tsawg, siab ci thiab lub neej ntev.

Raws li lub teeb pom kev ntawm LCD, CCLF (lub teeb txias cathode) yog lub ntsiab tseem ceeb uas tsis tuaj yeem tsis muaj mercury. Qhov no yog cov mercury paub, thiab lub caij no yog undoubtedly ib yam khoom uas tsim kev puas tsuaj rau tib neeg lub cev.

Piv nrog rau cov teeb pom kev zoo CCFL, LED backlights tuaj yeem txuag hluav taws xob ntau dua 40% piv nrog cov teeb pom kev zoo ntawm CCFL ntawm tib cov lus qhia thiab cov khoom qib pej xeem, uas ua rau kev txuag hluav taws xob zoo heev. Tsis tas li ntawd, mercury nyob rau hauv CCFL backlight yog ib yam khoom uas tsim kev puas tsuaj rau ib puag ncig, tab sis LED backlight tsis muaj cov khoom tsis zoo no, uas yog qhov zoo rau kev tiv thaiv ib puag ncig.

Qhov thib ob zoo ntawm LED backlight technology: nyias thiab elegant

LED backlight yog tsim los ntawm ntau daim phiaj-zoo li semiconductors, thiab txhua" grid" muaj ib tug LED semiconductor, thiaj li hais tias lub planarization ntawm lub teeb qhov chaw yuav ua tau tiav lawm. Planarized lub teeb ci tsis tsuas yog muaj qhov ci ntsa iab zoo sib xws, tab sis kuj tsis xav tau kev tsim kho qhov muag nyuaj. Nyob rau hauv txoj kev no, lub thickness ntawm LCD tuaj yeem ua kom sib zog thiab nyias, thaum tseem muaj kev ntseeg siab dua thiab ruaj khov.

Cov tsoos CCFL yog lub teeb ci tubular, thiab nws yuav tsum muaj cov khoom siv sib xyaw ua ke kom sib npaug ntawm lub teeb tawm los ntawm nws mus rau txhua qhov chaw ntawm lub vaj huam sib luag. Lub thickness ntawm lub vijtsam kuj tseem nyuaj rau kev tswj hwm, thiab nrog kev nce ntawm lub vaj huam sib luag, ntau lub teeb pom kev zoo yuav tsum tau siv, uas ntxiv dag zog rau qhov nyuaj thiab tus nqi ntawm tus tsim, thiab cov LCD TVs loj dua rau qhov no. Piv txwv li, rau cov khoom siv LCD lossis TV tshaj 50 nti, tus nqi ncaj qha CCFL backlight modules yuav suav tau ntau dua li ib nrab ntawm cov nqi ntawm lub vaj huam sib luag.

Qhov thib ob zoo ntawm LED backlight technology: ultra-wide xim gamut

LED backlight muaj cov yam ntxwv ntawm lub teeb pom kev zoo dua, thiab zoo dua li CCFL backlight hais txog xim qhia. Nws tuaj yeem ua rau qhov tsis muaj xim xim hauv LCD thev naus laus zis, thiab yooj yim ua tiav cov xim dav ntawm NTSC118% lossis siab dua, tso cai rau cov zaub LCD kom rov qab tau cov xim tiag tiag hauv cov yeeb yuj xwm.

Kev lig kev cai CCFL backlight technology, vim muaj kev txwv ntawm cov khoom siv fluorescent, lub teeb liab rendering muaj peev xwm ntawm lub teeb raj tsis muaj zog, thiab cov xim sib xyaw xim ntawm cov xim sib xyaw xim lim kuj tsis zoo. Nws tsuas tuaj yeem ua tiav NTSC 65-75% ntawm NTSC xim cheeb tsam, txawm tias nws yog Los ntawm kev siv lub teeb pom kev zoo CCFL, nws tsuas tuaj yeem ua tiav cov xim gamut txog 90% ntawm NTSC sib npaug piv, uas cuam tshuam rau cov duab zoo.

Qhov thib plaub zoo ntawm LED backlight technology: super ntev lub neej

Kev pabcuam lub neej ntawm LED backlight tuaj yeem ntev li 100,000 teev, txawm tias nws siv tsis tu ncua rau 10 teev hauv ib hnub, nws tuaj yeem siv tsis tu ncua rau 27 xyoo. Yog li ntawd, kev siv LED backlight LCD lossis LCD TV tom qab siv sijhawm ntev, qhov ci ntsa iab ntawm lub teeb pom kev zoo dua li CCFL backlight.

Lub neej ntev ntawm cov teeb pom kev zoo ib yam CCFL yog li 25,000 teev, thiab lub neej ci ntsa iab ntawm qhov tseeb CCFL backlights tsuas yog 60,000 teev. Thaum kawg ntawm lub neej, qhov ci ntawm LCD yuav txo qis, thiab CCFL backlight module ntawm LCD yuav tsum tau hloov. LED backlight tsis muaj qhov teeb meem li ntawd. Nyob rau theem no, lub neej kev pab cuam tiag tiag ntawm lub teeb dawb LED backlight yog 50,000 txog 100,000 teev, uas yog qhov pib zoo ib yam li kev pabcuam lub neej ntawm LCD zaub, thiab muaj peev xwm txhim kho ntxiv. Txawm hais tias nws siv 24 teev hauv ib hnub, nws txaus rau 5 xyoos. Yog li ntawd, lub neej luminous ntawm LED backlights deb tshaj li ntawm CCFL backlights.

Qhov thib tsib qhov zoo ntawm LED backlight technology: siab brightness

Qhov ci ntsa iab ntawm LED backlight yog qhov loj, thiab qhov luminous zaus tuaj yeem hloov kho tau yooj yim. Qhov zaus yog ntau dua li ntawm CCFL backlight, yog li nws tuaj yeem nthuav tawm cov duab zoo kawg nkaus. Cov tsoos CCFL backlight teeb muaj qhov tsis tshua muaj flicker thiab luminous zaus, uas yuav ua rau hla cov duab thaum ua yeeb yam dynamic.

Raws li cov khoom siv tsis pom kev, cov kua siv lead ua kua tsis tawm lub teeb los ntawm nws tus kheej. Nws tso siab rau lub teeb pom kev zoo kom dhau lub teeb los ntawm lub vaj huam sib luag los tso saib cov duab nraaj. Yog li ntawd, thev naus laus zis thev naus laus zis cuam tshuam ncaj qha rau cov duab zoo ntawm LCD TVs. Cov khoom siv ua kua siv lead ua ib txwm siv cov khoom txias cathode fluorescent teeb (CCFL) ua lub teeb ci, thiab nws yog CCFL uas ua rau cov xim ntawm cov kua siv lead ua kua tsis txaus thiab tsis zoo rau cov xim luam tawm.

Qhov thib rau qhov zoo ntawm LED backlight technology: adjustable dawb tshuav nyiaj li cas

LED backlight tuaj yeem kho qhov sib npaug dawb ntawm lub teeb nraub qaum thaum ua kom ntseeg tau qhov sib piv tag nrho. Thaum tus neeg siv' s video qhov hloov pauv ntawm lub khoos phis tawj thiab DVD player, qhov nyiaj tshuav dawb tuaj yeem hloov kho tau yooj yim ntawm 9600K thiab 6500K yam tsis muaj qhov ci ntsa iab thiab qhov sib txawv.

Ib txoj kev hloov pauv dawb raws li RGB peb-xim LED backlight, suav nrog thaum cov zaub khiav ntawm nws tus kheej, thaum lub teeb rov qab tau hloov kho rau qib tshiab ci ntsa iab, nyeem tus nqi ntawm qhov ntsuas kub ntawm lub teeb pom kev, yog tias tus nqi tiag tiag. tam sim no xim sensor Loj dua li tus qauv tus nqi, txo lub voj voog tam sim no ntawm lub teeb no me ntsis. Ntawm qhov tsis sib xws, nce lub voj voog ua haujlwm tam sim no ntawm lub teeb no me ntsis. Txhawm rau kom tau txais kev tsav tsheb tam sim no lub voj voog thiab tus qauv tus nqi ntawm cov xim sensor, siv cov particle swarm algorithm. Qhov kom zoo dua yog nyob rau hauv qhov kev hloov pauv dawb ntawm qhov kub ntawm qhov dav yuav ua tiav, cov lus teb ceev tau zoo dua, kev siv zog txo qis, thiab kev ua haujlwm tau zoo dua qub.

Xya qhov zoo ntawm LED backlight technology: ultra-high contrast

Piv nrog rau cov tsoos CCFL fluorescent teeb backlight, LED backlight tuaj yeem txhim kho qhov sib xws ntawm lub teeb emission. Nrog rau kev txhawb nqa LED rau ntau lub ntsiab lus, qhov sib piv ntawm cov zaub ntawm LED backlight tuaj yeem ua tau zoo heev rau qhov siab ntawm 1 lab: 1.

Txhawm rau muab nws yooj yim, qhov sib piv yog tib yam li qhov sib piv tag nrho-on/full-off. Nws kuj yog qhov piv ntawm qhov ci ci ntawm qhov kev sim zaub thaum nws tau txais lub teeb liab puv-dawb rau qhov ci ntsa iab ntawm tag nrho-dub teeb liab zaub. Qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, cov zaub yuav kho qhov ci ntsa iab ntawm lub teeb nraub qaum kom lub teeb pom kev zoo siab dua thaum tau txais tag nrho cov teeb liab dawb, thiab qhov ci ntawm cov zaub tau txais tag nrho cov teeb liab dub yog qis dua, thiab tom qab ntawd mus rau tus lej loj dua.

Nrog kev rub ntawm LCD ua lag luam, LED backlight kev lag luam tau nthuav tawm. Nrog kev nce qib hauv kev ua lag luam thev naus laus zis, kev lag luam LED loj yog destined los tsim kev lag luam loj.

Tom qab xyoo ntawm txoj kev loj hlob, LED zaub kev lag luam tau maj mam paub tab, thiab nws daim ntawv thov teb kuj tau txuas ntxiv mus. Raws li kev txheeb cais nyob rau hauv xyoo tas los no, muaj ntau tshaj 140 tuam txhab uas muag nrog ib tug txhua xyoo tso zis tus nqi ntawm pua ​​pua lab nyiaj nyob rau hauv lub domestic LED kev lag luam, uas ua pov thawj tag nrho hais tias cov nthwv dej ntawm lub lag luam nyob rau hauv LED zaub yog noj kom zoo dua ntawm cov qauv. Los ntawm kev lag luam kev xav, LED backlight technology muaj nws qhov zoo.