Quantum dot qhia tau kub heev tam sim no, lawv puas muaj zog tiag tiag li cov lus dab neeg?

Hauv kev lag luam tso tawm tsis ntev los no, quantum dot zaub thev naus laus zis yog hluav taws. Cov tuam txhab tsim khoom loj tau maj nrawm los tsim cov lus qhia quantum dot. Txawm li cas los xij, kev lag luam zaub tsis tuaj yeem ua tiav hmo ntuj. Quantum dot qhia tau yug. Txawm hais tias lawv zoo lossis tsis zoo, Kuv yuav piav qhia lawv hauv txoj kev yooj yim hnub no. Cia peb saib seb dab tsi yog quantum dot thiab dab tsi yog quantum dot zaub.

Dab tsi yog quantum dot

Ua ntej, peb yuav tsum nkag siab tias quantum dot (QD) yog dab tsi. Quantum dots yog cov khoom siv hluav taws xob me me, tsuas yog ob peb nanometers nyob rau hauv qhov loj me, yog li me me uas lawv cov khoom siv hluav taws xob sib txawv los ntawm cov khoom loj dua. Lub hauv paus ntsiab lus ntawm kev tso tawm lub teeb yog txhawm rau txhawb cov khoom quantum dot los ntawm hluav taws xob lossis lub teeb. Cov khoom siv quantum dot yuav tso tawm lub teeb ntawm qhov tshwj xeeb, thiab cov zaus no tuaj yeem hloov pauv los ntawm kev hloov qhov loj thiab cov duab ntawm quantum dot kom ua tiav qhov tseeb.

Yooj yim muab, cov khoom siv hluav taws xob ntawm quantum dots sib txawv heev los ntawm cov yav dhau los luminescent zaub hais. Vim tias cov ntsiab lus ntawm quantum dots me me heev, cov xim xim ntawm quantum dots tau hloov pauv los ntawm kev hloov qhov loj thiab cov duab ntawm cov khoom. Vim li no, raws li kev xav, xim xim nthuav tawm los ntawm quantum dots tau txuas ntxiv thiab tus nqi yuav qis dua.

Qhov tseeb, lawv yog cov nano-qib hais. Peb paub tias ntau cov ntaub ntawv muaj qhov sib txawv ntawm lub cev thiab tshuaj nyob ntawm qib nano, tab sis cov lej quantum tau hu zoo dua.

Quantum dots ntawm ntau qhov sib txawv tso xim sib txawv. Thaum lub quantum dot tau txhawb los ntawm lub teeb lossis hluav taws xob, nws tso tawm lub teeb xim. Cov xim ntawm lub teeb yog txiav txim siab los ntawm cov khoom siv thiab qhov loj ntawm quantum dot. Feem ntau, qhov me me me me, qhov ntev nws yuav nqus tau. , Qhov loj me me, nthwv dej luv yuav nqus. Quantum dots nrog qhov loj me ntawm 2nm tuaj yeem nqus ntev nthwv dej liab thiab qhia xiav; quantum dots nrog qhov loj me ntawm 8nm tuaj yeem nqus dej nthwv dej xiav thiab qhia liab. Cov yam ntxwv no tso cai rau quantum dots hloov xim ntawm lub teeb tawm los ntawm lub teeb ci. Piv nrog rau thawj lub thev naus laus zis thev naus laus zis, peb qhov xim thawj ntawm RGB qhia los ntawm quantum dots yuav ntshiab dua.

Daim ntawv thov tam sim no ntawm quantum dots ntawm cov lus

Qhov tseeb, quantum dot thev naus laus zis tsis yog thev naus laus zis tshiab. Thaum ntxov li xyoo 1983, cov kws tshawb fawb ntawm Bell Laboratories hauv Tebchaws Meskas tau kawm nws. Tsuas yog ob peb xyoos tom qab, kws kho mob Mark Reid ntawm Yale University hauv Tebchaws Meskas tau lees paub tsim lub semiconductor micro-block no. Nws yog lub npe" quantum dot" thiab tseem siv niaj hnub no, yog li nws tsis yog thev naus laus zis tshiab hauv qhov kev nkag siab nruj, tab sis nyob rau xyoo tas los no, cov duab loj coj los ntawm Samsung tau tsim kev mob siab rau hauv quantum dot thev naus laus zis.

Zoo, tom qab nkag siab txog keeb kwm thiab tus yam ntxwv ntawm quantum dots, cia peb saib qhov kev thov tam sim no ntawm quantum dots ntawm cov lus. Dab tsi yog qhov sib txawv ntawm cov tsoos LCD tso tawm thiab OLEDs, uas tseem nrov hnub no.

LCD vaj huam sib luag

LCD vaj huam sib luag qauv

Cia peb saib keeb kwm ntev ntawm LCD thev naus laus zis. Cov qauv ntawm LCD zaub yog qhov nyuaj heev. Cov qauv ntawm LCD yog tso cov kua siv lead ua kua nruab nrab ntawm ob lub iav sib txuas ua ke. Cov iav hauv qab qis tau nruab nrog TFTs (zaj duab xis nyias zaj duab xis), thiab iav txheej sab saud Cov xim lim tau teeb tsa ntawm TFT, thiab kev hloov pauv ntawm cov kua siv lead ua kua molecules tau tswj los ntawm lub teeb liab thiab hloov pauv ntawm TFT, yog li raws li kev tswj hwm seb lub teeb pom kev zoo ntawm txhua lub ntsiab lus pixel tau tso tawm lossis tsis ua tiav lub hom phiaj ntawm cov zaub. Raws li lub teeb pom kev ntawm lub teeb pom kev, LCD saib tau muab faib ua ob hom: CCFL (txias cathode fluorescent teeb) thiab LED (lub teeb emitting diode). Peb feem ntau ntseeg tias LCD thiab LED yog ob hom kev tshuaj ntsuam. Nws yog qhov tsis raug, thiab nws yog tus tswv tag nrho los ntawm feem ntau ntawm cov tuam ntxhab. Ua yuam kev, ob leeg tsuas yog sib txawv los ntawm lub teeb pom kev zoo. Tau kawg, tsis muaj kev sib tham ntxiv txog cov vaj huam sib luag uas tsim los ntawm cov kua siv lead ua.

OLED vaj huam sib luag

OLED vaj huam sib luag qauv

Lub vaj huam sib luag OLED yog qhov txawv ntawm lub vaj huam sib luag LCD. Hauv kev sib piv, cov qauv ntawm OLED vaj huam sib luag yuav yooj yim dua. Lub npe tag nrho ntawm OLED yog cov khoom siv hluav taws xob tso tawm hluav taws xob, uas yog hais, cov khoom siv hluav taws xob ntawm OLED vaj huam sib luag yog cov khoom siv organic, piv nrog cov khoom tsis muaj kuab lom. Cov khoom siv organic muaj qhov tsis txaus ntseeg hais txog kev ua neej nyob ntev. OLED zaub thev naus laus zis muaj tus yam ntxwv ntawm tus kheej. Nws siv cov txheej txheej organic cov ntaub nyias nyias thiab cov iav iav. Thaum tam sim no dhau los, cov khoom siv organic no yuav tso tawm lub teeb, thiab OLED cov vijtsam muaj lub ntsej muag saib loj thiab tuaj yeem txuag hluav taws xob. Vim yog tus yam ntxwv ntawm tus kheej-luminous, OLED ua tau ntau yam dawb huv hauv cov xim dub, vim tias tsuav yog cov khoom tsis tso tawm lub teeb, nws yuav tso saib dub. Tib lub sijhawm, qhov pom dav, qhov sib txawv siab, kev siv hluav taws xob tsawg, thiab cov tshuaj tiv thaiv siab yog txhua yam ntxwv ntawm OLED vaj huam sib luag.

Quantum dot vaj huam sib luag

Quantum dot vaj huam sib luag qauv

Peb twb tau tham txog quantum dot thev naus laus zis, yog li kuv yuav tsis mus rau hauv cov ntsiab lus. Tam sim no cia peb tham txog qhov sib txawv hauv cov lus qhia quantum dot.

Qhov tseeb, kom deb li deb txog qhov tam sim no quantum dot screen muaj kev txhawj xeeb, nws tsuas yog kev hloov pauv hauv lub teeb pom kev los ntawm cov tsoos LCD ib txwm muaj, uas yog kev txuas ntxiv ntawm LCD vaj huam sib luag, thiab tsis muaj qhov hloov pauv tseem ceeb. Hauv layman' cov lus, qhov tam sim no quantum dot zaub ntxiv cov yeeb yaj kiab rau VA vaj huam sib luag, uas yog QDEF zaj duab xis hauv daim duab saum toj no.

Raws li peb txhua tus paub, hauv txoj kev teeb pom kev zoo tam sim no LED, txhawm rau qhia peb qhov xim thawj, muaj ob txoj hauv kev teeb pom kev zoo: ib qho yog siv RGB LED teeb pom kev ncaj qha rau teeb pom kev rov qab, yog li tus nqi siab heev thiab yuav luag tsis muaj cov khoom nyob hauv siv; lwm qhov yog kev siv ntau ntawm cov khoom lag luam. Hom rov qab: pseudo-dawb LED backlight, uas siv phosphor ntawm cov pixels los tsim xim. Dab tsi yog pseudo-dawb LED backlight? Nws tso tawm lub teeb pom kev dawb los ntawm kev ntxiv phosphor daj rau LED xiav (LED xiav hauv daim duab saum toj no).

Qhov no kuj yog lub hauv paus ntawm kev xaiv thoob plaws hauv Is Taws Nem tias&"lub teeb xiav ntawm lub vijtsam ua rau lub qhov muag &"; ib hooliganism." Qhov no tau ua rau muaj lus xaiv loj los nthuav tawm hauv Is Taws Nem, yog li tsis txhob txhawj ntau.

Quantum dot vaj huam sib luag tso saib lub hauv paus ntsiab lus

Txawm li cas los xij, yog tias xim tau tsim los ntawm quantum dots, lub teeb pom kev dawb dawb tsis tsim nyog. Muaj ob qho laj thawj (qhov tseeb, nws yuav tsum suav ua ib qho): photoluminescence, lub teeb xiav quantum dots tsis tuaj yeem tshwm sim ntawm qhov chaw, yog li lub teeb xiav yuav tsum tau ntxiv rau lub teeb pom kev thib ob, cov xim lub teeb pom kev yog vim qhov tam sim no quantum dots yog tsuas yog lub luag haujlwm los tsim lub teeb ntsuab thiab lub teeb liab, yog li cov dawb LED hauv qhov qub teeb pom kev zoo yuav tsum tau hloov nrog LED xiav. Nyob rau tib lub sijhawm, kev tso cov QDEF cov txheej txheem muaj kev txhawj xeeb heev. Txhawm rau tso cai kom pom kev mus los ntawm txheej txheej ntawm cov yeeb yaj kiab kho qhov muag, cov lej rov ua dua los ntawm QDEF nce ntxiv, yog li QDEF yuav tsum tau muab tso ze rau ntawm lub teeb ci, thaum qhov kev txiav txim tau nce mus. , Kev hloov pauv tsis txaus ntawm lub teeb liab thiab ntsuab yuav ua rau muaj qhov tshwm sim xiav. Nyob rau tib lub sijhawm, daim ntawv thov QDEF zaj duab xis thiab xiav LED lub teeb pom kev kuj tseem yog ib qho laj thawj vim li cas cov xim tso saib ntawm quantum dot qhia yog huv dua li cov lus pom.

Tias' yog vim li cas nws thiaj tau hais ntawm no tias kom deb li deb raws li qhov tam sim no quantum dot zaub thev naus laus zis muaj kev txhawj xeeb, tsuas yog hom teeb pom kev zoo ntawm lub vijtsam tau hloov pauv thiab txheej txheej ntawm zaj duab xis tau ntxiv.

Quantum dot thev naus laus zis zoo heev. Qhov kev paub dhau los zoo li cas?

Qhov tseeb, kev cia siab thev naus laus zis ntawm quantum dots tau dav heev, thiab nws tsis yog tsuas yog hloov pauv txoj kev teeb pom kev zoo. Quantum dot thev naus laus zis tau nce mus rau LED ntim khoom (ntim cov khoom quantum dot rau hauv LEDs).

Tam sim no QDEF zaj duab xis kuj tsis pheej yig. Rau TV 55-nti, tus nqi ntawm QDEF yog kwv yees li $ 100. Ib feem loj ntawm qhov chaw yog vim cov khoom xav tau thaiv dej thiab oxygen. Vim tias quantum dots yog cov tsis muaj tshuaj, lawv thov kom ruaj khov dua OLEDs hauv kev tshaj tawm. Tab sis qhov tseeb, nano-me me quantum dots tau nkag siab heev thiab tsis tsuas yog tiv tshav kub li phosphors, tab sis kuj zoo li OLED, Kuv ntshai dej thiab oxygen, thiab ua rau kuv ruaj khov dua li OLED. Muaj tiag tiag tsis muaj peev. Hauv cov txheej txheem ntawm kev ua lag luam, ntau lub zog thiab tus nqi tau siv dej thiab oxygen. Coj QDEF los ntawm 3M thiab Nanosys ua piv txwv. Lub thickness ntawm QDEF yog li 210μm, uas yog cov yeeb yaj kiab sab saud thiab qis dua (dej thiab cov pa oxygen thaiv) rau 110μm, thiab tus nqi kuj suav rau ib nrab ntawm tag nrho zaj duab xis.

Kev sib piv ntawm cov zaub zoo tib yam (sab laug) thiab quantum dot zaub (sab xis)

Qhov kev paub dhau los coj los ntawm cov yeeb yaj kiab kim no yog dab tsi? Raws li peb tau hais ua ntej, vim yog cov khoom tshwj xeeb ntawm cov ntaub ntawv quantum dot, nws tuaj yeem tso tawm lub teeb uas nyob ze rau qhov sib txuas tas mus li, uas yog, cov xim tso tawm los ntawm quantum dots tuaj yeem ua tau ntau dua thiab xim gamut tuaj yeem dav dua. Qhov no tseem yog qhov kev thov muaj zog ntawm ntau lub tuam txhab quantum dot zaub. Yog lawm, peb chav ntsuas ntsuas tau sim ntsuas qhov sib piv quantum dot zaub, thiab nws yog qhov zoo dua hauv cov xim gamut ntau dua li tsis yog quantum dot qhia. Qhov no kuj tau txiav txim siab los ntawm cov khoom siv khoom ntawm quantum dots.

Netizens tau tawm tswv yim tias qee lub npe ntawm 27-nti 2K daws teeb meem quantum dot zaub yog qhov hnyav

Peb lub vev xaib tseem tau tso cai rov luam dua cov quantum dot cov kev paub ntawm cov neeg siv internet

Tab sis thaum peb pom qhov zoo, peb tseem yuav tsum pom qhov ua tsis tau ntawm qhov tam sim no quantum dot zaub. Ntawm kev lag luam e-lag luam, ntau tus neeg siv netizens pom tias cov quantum dot zaub yog qhov me me heev tom qab yuav cov zaub. Txawm hais tias qhov kev daws teeb meem ntawm cov zaub nce mus txog 2K (27-nti) qib, nws tseem muaj qhov hnyav heev. Yog vim li cas tsis paub

Nyob rau tib lub sijhawm, vim tias thev naus laus zis quantum dot tam sim no tseem yog txuas ntxiv ntawm VA screen (LCD) vaj huam sib luag, lub teeb pom kev tawm thiab xim xim ntawm lub vaj huam sib luag LCD kuj tseem muaj nyob ntawm quantum dot zaub. Nov yog qhov tam sim no quantum dot backlight thev naus laus zis tuaj yeem zam tsis tau, nws tsuas tuaj yeem hais kom saib xyuas kev tswj hwm ntawm ntau lub tuam txhab.

PConline DIY cov neeg tsav tsheb qub ntsiab lus

Kev sib piv ntawm quantum dot thev naus laus zis thiab thev naus laus zis OLED

Yog li quantum dot yog thev naus laus zis zoo li cas? Ib txwm muaj kev sib piv ntawm cov tshuab quantum dot thiab OLED thev naus laus zis hauv Is Taws Nem, thiab yav tom ntej yuav yog PK ntawm ob lub thev naus laus zis no. Tab sis kom deb li deb qhov kev paub tam sim no muaj kev txhawj xeeb, nws tsis tas yuav zoo dua li cov laus ib txwm siv LCD vaj huam sib luag, cia nyob ib leeg ntawm OLED vaj huam sib luag.

Kev txhim kho yav tom ntej ntawm quantum dot thev naus laus zis

Tau kawg, cov lej quantum tam sim no tsis yog qhov txaus siab tshwj xeeb, tab sis yog tias peb pom yav tom ntej thiab kev txhim kho kev coj ua ntawm quantum dots yav tom ntej, yuav tsum muaj qhov chaw dav heev. Nws tuaj yeem raug faib ua plaub ntu hauv peb theem: 1. Hloov cov tshuaj phosphor uas tso tawm ib txwm muaj; 2. Tshem cov lim xim; 3. Ua ntu zus los ua txheej txheej ci ci (uas yog, tam sim no tus kheej-luminous daim ntawv ntawm OLED pixels). Yav tom ntej quantum dot thev naus laus zis yuav dhau mus ua qhov hloov pauv tseem ceeb thiab txawm tias kev hloov pauv mus rau kev lag luam zaub, tab sis tam sim no, tseem muaj txoj hauv kev ntev mus.