Tsev > Xov xwm > Ntsiab lus

LCD, OLED Thiab Lub Hauv Paus Ntsiab Lus Ntawm Quantum Dots

Mar 19, 2018

Pib xyoo 1990, lub ntiaj teb TV tau pib thawj lub voj voog rau pem hauv ntej, ib qho loj loj ntawm peb ntau tshaj ib nrab xyoo ntawm cathode txoj kab tshav dav hlau (Cathode Ray, Tub, CRT) yog ib lub TV TV me me (Cov Kua Crystal Display, LCD ), tau dhau los ua tus neeg ntawm lub chav tsev nyob. Tab sis cov kws tshawb fawb soj ntsuam lub tsho xov tooj cua zoo thiab txo qhov tuab ntawm lub hom phiaj tseem tsis tau nres, tom qab ob peb xyoos ntawm txoj kev loj hlob, cov organic teeb emitting diode nyias xim ntau dua "(" Organic Light Emitting Diode, OLED) thiab "quantum dots" ( Quantum Dot, QD) Tshaj Tawm Tshaj Tawm, ua rau cov menyuam yaus hloov tau lub sijhawm tseem ceeb ntawm kev tau txais LCD TV ntau dua peb saib ob hom tshiab ntawm cov khoom tshiab tom kawg ntawm qhov txawv.


Peb thawj xim ntawm lub teeb

Nyob hauv kev nkag siab ntawm lub hauv paus ntsiab lus, peb xub tuaj nkag siab txog txhua yam ntawm cov yeeb yam kev siv tshuab yog yuav ua li cas, lawv nyob hauv cov xim liab liab (Liab, R), ntsuab (Ntsuab, G), xiav (Xiav, B) 3 xim ntawm qhov sib txawv ntawm qhov sib txawv tau muab tso ua ke rau hauv lub nruas spectrum hauv yuav luag tag nrho cov xim pom yog li ntawd, peb hu cov xim liab, ntsuab thiab xiav "". Raws li pom hauv daim duab 1, piv txwv tias muaj ib lub thawv los tso saib ib qho xim, yog li lub thawv hu ua "pixel" (pixel), qhov kab sib ntsug txiav rau hauv peb lub kaum plaub, uas yog RGB 3 xim, qhov no me me lub thawv hu ua "pixel" Sub-pixel).

Xim npo

Lub teeb pom kev pom muaj ib qho ntawm cov xim, 2 daim duab "chromaticity diagram" rau tag nrho cov xim ntawm qhov muag liab qab tau pom, lub wavelength ntawm lub teeb yog lub teeb xim, muaj pes tsawg hom wavelength, muaj ntau npaum li cas hom xim, thiab hais tias nyob rau hauv pem hauv ntej ntawm xim liab, ntsuab thiab xiav yog tiag tiag tsuas yog ib qho kev pom kev pom zoo. Qhov sib txawv ntawm qhov sib txawv ntawm emitting wavelength hauv qhov tseeb ntau muaj qee qhov sib txawv, yog li siv sib txawv lub teeb emitting tivthaiv tuaj yeem tsim xim thiab ntau theem. Cov teeb pom kev dawb teeb-emitting diode (Dawb LED WLED) raws li lub teeb pom kev zoo LCD TV (LCD-TV) hu ua "LED-TV", txawm tias lub khw yuav tsum xyuam xim rau nws hu ua LED-TV, nws yog "LED backlight LCD -Txawm ", nws yog siv" xim lim "3 xim RGB lub teeb ntawm daim duab peb sab vertex hauv daim duab yog RGB 3 xim, thiab daim duab peb sab yog cov xim ntawm cov TV no tau cov xim ua ke (ntau tus sawv cev peb sab muab tso rau hauv cov xim ntawm cov xim muaj ntau dua), obviously tsis tau tag nrho cov xim ntawm lub qhov muag liab qab tau pom, tab sis qhov no yog txaus kom cia cov TV ntawm peb pom cov duab tiag; ces cov tuam txhab tau tsim cov teeb pom kev sib txawv xim dawb (LED) thiab xim lim RGB 3 xim, tuaj yeem ua ke ua ntau xim (Liab daim duab peb sab), hu ua "broad gamut LED-TV", tab sis ob lub TV siv cov xim xim , ua kom pom lub teeb dawb kom tsim tau RGB 3 hom xim, thiab kev lag luam tam sim no nyob rau sab nraum qab ntawm lub teeb dawb emitting diode (LED) siv lub teeb qhov xim tsuas yog siv tau, yog li ntawd yuav muab tag nrho rau hauv cov xim yog tseem tsis txaus; uas tuaj yeem pom hauv daim duab organic light emitting diode (OLED-TV) uas ua los ntawm RGB TV 3 xim tuaj yeem ua ke ua ntau xim (ntsuab daim duab peb sab); thiab quantum dots (QD-TV) uas ua los ntawm RGB peb xim tuaj yeem ua ke ua ntau xim (xiav triangles).


Organic teeb emitting diode

Organic teeb emitting diode (OLED) hu ua "organic electroluminescence" (Organic Electrical Luminescence, OEL), nws cov qauv raws li qhia hauv daim duab peb, yuav muaj peev xwm tawm ntawm lub teeb liab, ntsuab thiab xiav organic emitting diode "(ib qho organic molecule lub teeb taws cua sov txheej ntawm lub yeeb yam iav, thiab tom qab ntawd cov pa taws plating hlau electrodes, cov xim sib txawv ntawm cov organic teeb emitting semiconductor voltage txhaj qhov thiab electron, electron thiab qhov nyob rau hauv cov organic teeb emitting semiconductor teeb emitting ua ke. Cov teebmeem organic yog lub hom phiaj "organic molecules" (zoo ib yam li yas), vim muaj cov khoom siv ntawm cov khoom tsis muaj zog vim yog cov qoob loo zis muaj qis heev, tus nqi raug txiav down, thiab lub neej kev pab cuam luv luv, nrog ib lub sij hawm ntev yuav ploj, yog li txhua lub sijhawm yav dhau los yog siv ib qho me me ntawm cov duab monochrome. rs 'dag zog, Samsung thiab LG ntawm South Kauslim tau nce lub yield. Cov xim TV uas tau ua ntau tshaj 60 ntiv tau raug muag ntawm tus nqi siab. Nws zoo nkaus li tau pom nws qhov kev lag luam qeeb qeeb.



Quantum dot TV

Cov kws tshawb fawb pom tau tias thaum cov ntaub ntawv ntawm qhov loj me me rau hauv 100 nm yuav tsim cov "quantum confined effect" (Quantum confinement nyhuv), lub electron thiab qhov yog tsim los ntawm cov kev txwv ntawm cov neeg nyob ruaj hauv cov ntaub ntawv nano, thiab nano khoom loj me me, luminescence siv cov ntaub ntawv muaj zog. Lub sij hawm luv lub wavelength lub teeb (xiav), qhov tshwm sim no yog hu ua "xiav hloov" (xiav ua haujlwm), raws li pom hauv daim duab plaub, txawv wavelengths txawv, yog li wavelength ntawm lub teeb yog xim liab, pom nyob rau hauv ntev co taw , ntsuab lub teeb thiab xiav lub teeb yog luv tshaj plaws, nyob rau hauv lwm yam lus, thaum qhov loj ntawm nano cov ntaub ntawv, lub luminescence khov tsis muaj zog, xim yog xim liab (ntev tshaj plaws wavelength); thaum nano loj me me, luminous siv ua zog, xim yog lub teeb ntsuab (lub sij hawm ntev); thaum lub nano khoom loj me me, ntau luminous khov thiab xiav lub teeb (lub luv tshaj wavelength).

YAG phosphor grain emits xiav teeb liab irradiation, fluorescent hmoov absorbing xiav lub teeb kom tsim tau lub teeb dawb, raws li qhia hauv daim duab tsib (xiav, LED, BLED) a), hais txog qhov no ntawm RGB xim muaj tsawg, tuaj yeem pab pawg hluavtaws yog tseem tsis txaus, yog li peb tuaj yeem siv kev siv cov quantum dots (QD) los hloov cov hmoov fluorescent hu ua "quantum dot light-emitting diode (QD -LED), raws li qhia hauv daim duab tsib (b), uas siv cov khoom siv coj los ua kua (LCD) backlight yuav ua rau kom muaj xim ntawm RGB, raws li qhia hauv daim duab tsib (c), ces nws tuaj yeem ua ke rau hauv cov xim nws zoo heev, thiab tsis tas yuav muaj kev hloov kho ntau ntawm cov kua siv lead ua kua (LCD), tus nqi qis, tab sis yuav tsum tau siv cov xim xim.


Yog tias koj xav ntxiv RGB xim yuav siv tau raws li xiav teeb emitting diode (BLED) backlight, raws li qhia hauv daim duab tsib (d), los ntawm lub vaj huam sib luag hauv LCD zoo li, thiab quantum dots ncaj qha luam pixel ua rau ntawm qhov sib txawv ntawm version los hloov xim xim los ntawm xiav teeb pom kev hauv lub teeb, liab dots qhov teeb ntawm lub teeb xiav yuav ci liab, ntsuab xiav lub teeb duab quantum dots yuav emit ntsuab lub teeb, xia xiav lub teeb haum quantum dot emits xiav teeb, xiav pixels thiab tib xim vim hais tias lub teeb nrig module tsis tau thiaj li siv cov quantum dots xiav, quantum dots lub TV (QD-TV) raws li qhia hauv daim duab rau.


  

Cov teeb pom kev dawb teeb emitting diode (WLED) backlight rau LCD TV (LCD-TV) kev ua lag luam muaj matured, tsis muaj ntau qhov chaw tuaj yeem kho tau zoo hauv tshuab; Txawm hais tias cov organic teeb emitting diode (OLED-TV) uas ua los ntawm RGB TV 3 xim tuaj yeem ua ke ua ntau xim, tab sis cov qes qis los ntawm cov nqi ntau dua, lub sij hawm luv luv tsis muaj peev xwm txhawb kev siv; thiab QB TV (QD-TV) RGB ua 3 hom xim tuaj yeem ua ke nrog ntau xim, tab sis tsis tas yuav hloov kho ntau dhau ntawm cov qauv siv lead ua kua (LCD), nws yog ib txoj kev ua tau zoo tam sim no, tab sis Nco ntsoov, qhov tseeb, nws yog ib hom kua siv ua kua TV ua rau nws tseem nyob ntawm LCD TV, zoo li, nws tseem yog ib hom LCD TV tshaj tawm, xam rau "quantum dots" (Quantum dot) uas lub suab puv npo ntawm kev tshawb fawb "Nyob rau hauv lub neej yav tom ntej, TV hauv peb lub tsev yuav ua ntau dua, thiab xim ntawm daim duab yuav ntau dua, kom peb thiaj li pom daim duab ntuj li tiag tiag hauv TV.