LED cov khoom siv hluav taws xob muaj cov pixels zoo, tsis hais hnub lossis hmo ntuj, hnub ci lossis hnub los nag,LED zaubtuaj yeem ua rau cov neeg tuaj saib pom cov ntsiab lus, kom tau raws li cov neeg xav tau rau cov khoom siv.
Duab nrhiav technology
Lub hauv paus ntsiab lus ntawm LED hluav taws xob tso saib yog hloov cov teeb liab digital rau hauv cov duab teeb liab thiab nthuav tawm lawv los ntawm lub teeb pom kev zoo.Cov txheej txheem ib txwm siv yog siv daim npav video ua ke nrog VGA daim npav kom ua tiav cov haujlwm ua haujlwm.Lub luag haujlwm tseem ceeb ntawm daim npav video tau yog los ntes cov duab video, thiab tau txais qhov chaw nyob ntawm cov kab ntau zaus, teb zaus thiab pixel cov ntsiab lus los ntawm VGA, thiab tau txais cov cim digital feem ntau los ntawm kev luam cov lus saib xim.Feem ntau, software yuav siv tau rau lub sij hawm replication los yog hardware tub sab, piv nrog hardware tub sab yog ntau npaum.Txawm li cas los xij, cov txheej txheem ib txwm muaj qhov teeb meem ntawm kev sib raug zoo nrog VGA, uas ua rau qhov muag plooj, cov duab tsis zoo thiab lwm yam, thiab thaum kawg ua rau cov duab zoo ntawm cov khoom siv hluav taws xob.
Raws li qhov no, cov kws tshaj lij kev lag luam tau tsim daim npav video JMC-LED, lub hauv paus ntsiab lus ntawm daim npav yog raws li PCI tsheb npav siv 64-ntsis cov duab nrawm los txhawb VGA thiab video ua haujlwm rau hauv ib qho, thiab ua tiav cov ntaub ntawv video thiab VGA cov ntaub ntawv mus rau tsim cov nyhuv superposition, cov teeb meem kev sib raug zoo yav dhau los tau raug daws tau zoo.Thib ob, qhov kev daws teeb meem tau txais kev pom zoo puv npo los xyuas kom meej tag nrho lub kaum sab xis optimization ntawm cov duab yees duab, cov ntug ib feem tsis fuzzy lawm, thiab cov duab tuaj yeem ua rau arbitrarily scaled thiab txav mus kom tau raws li cov kev xav tau sib txawv.Thaum kawg, peb cov xim liab, ntsuab thiab xiav tuaj yeem sib cais kom ua tau raws li qhov yuav tsum tau muaj ntawm cov khoom siv hluav taws xob muaj tseeb xim.
2. Cov duab tiag tiag cov xim luam tawm
Lub hauv paus ntsiab lus ntawm LED tag nrho-xim zaub zoo ib yam li lub TV hais txog kev ua haujlwm pom.Los ntawm kev sib xyaw ua ke zoo ntawm cov xim liab, ntsuab thiab xiav, cov xim sib txawv ntawm cov duab tuaj yeem rov ua dua thiab rov ua dua tshiab.Lub purity ntawm peb cov xim liab, ntsuab thiab xiav yuav ncaj qha cuam tshuam rau kev loj hlob ntawm cov duab xim.Nws yuav tsum raug sau tseg tias kev tsim tawm ntawm cov duab tsis yog kev sib xyaw ua ke ntawm cov xim liab, ntsuab thiab xiav, tab sis yuav tsum muaj qee qhov chaw.
Ua ntej, lub teeb sib piv ntawm liab, ntsuab thiab xiav yuav tsum nyob ze rau 3: 6: 1;Thib ob, piv nrog rau lwm ob xim, tib neeg muaj qee yam rhiab heev rau liab hauv lub zeem muag, yog li nws yog ib qho tsim nyog los faib cov xim liab nyob rau hauv qhov chaw pom.Thib peb, vim tias tib neeg lub zeem muag tau teb rau qhov tsis sib xws ntawm lub teeb ci ntawm cov xim liab, ntsuab thiab xiav, nws yog ib qho tsim nyog los kho lub teeb tawm sab hauv lub TV los ntawm lub teeb dawb nrog lub teeb sib txawv.Plaub, cov neeg sib txawv muaj peev xwm daws tau cov xim sib txawv nyob rau hauv cov xwm txheej sib txawv, yog li nws yog ib qho tsim nyog yuav tsum paub txog lub hom phiaj ntawm cov xim luam tawm, uas feem ntau yog raws li hauv qab no:
(1) Lub wavelengths ntawm liab, ntsuab thiab xiav yog 660nm, 525nm thiab 470nm;
(2) Kev siv 4 lub raj nrog lub teeb dawb yog qhov zoo dua (ntau tshaj 4 lub raj tuaj yeem, feem ntau yog nyob ntawm lub teeb siv);
(3) Qib grey ntawm peb lub ntsiab xim yog 256;
(4) Kev kho tsis yog kab yuav tsum tau txais los ua cov txheej txheem LED pixels.
Lub teeb liab, ntsuab thiab xiav lub teeb hluav taws xob faib hluav taws xob tuaj yeem pom tau los ntawm cov khoom siv kho vajtse lossis los ntawm cov khoom siv rov ua haujlwm sib raug zoo.
3. tshwj xeeb kev muaj tiag tsav Circuit Court
Muaj ob peb txoj hauv kev los faib cov raj pixel tam sim no: (1) scan tsav;(2) DC tsav;(3) qhov chaw tsav tam sim no tsis tu ncua.Raws li cov kev xav tau sib txawv ntawm lub vijtsam, txoj kev luam theej tawm txawv.Rau sab hauv tsev lattice thaiv npo, hom scanning feem ntau yog siv.Rau sab nraum zoov pixel raj npo, txhawm rau ua kom muaj kev ruaj ntseg thiab pom tseeb ntawm nws cov duab, DC tsav tsheb yuav tsum tau txais yuav los ntxiv qhov tam sim no mus tas li rau lub tshuab luam ntawv.
Thaum ntxov LED tsuas yog siv cov teeb liab qis-voltage series thiab hloov pauv hom, hom no muaj ntau cov pob qij txha, cov nqi ntau lawm, tsis txaus ntseeg thiab lwm yam tsis zoo, cov kev tsis txaus no txwv txoj kev loj hlob ntawm LED hluav taws xob zaub nyob rau hauv ib lub sijhawm.Txhawm rau daws cov teeb meem saum toj no ntawm LED cov khoom siv hluav taws xob, ib lub tuam txhab hauv Tebchaws Meskas tau tsim daim ntawv thov tshwj xeeb kev sib koom ua ke, lossis ASIC, uas tuaj yeem paub txog cov kev hloov pauv hloov pauv thiab tam sim no tsav mus rau hauv ib qho, kev sib xyaw ua ke muaj cov yam ntxwv hauv qab no. : qhov sib npaug tso zis tsav tsheb, tsav tsheb tam sim no mus txog 200MA, LED ntawm lub hauv paus no tuaj yeem tsav tam sim ntawd;Tam sim no loj thiab voltage kam rau ua, ntau yam, feem ntau yuav nyob nruab nrab ntawm 5-15V saj zawg zog xaiv;Lub serial-parallel tso zis tam sim no loj dua, tam sim no inflow thiab tso zis ntau dua 4MA;Cov ntaub ntawv ua haujlwm ceev dua, haum rau tam sim no ntau xim grey LED zaub tsav tsheb muaj nuj nqi.
4. brightness tswj D/T conversion technology
LED hluav taws xob zaub yog tsim los ntawm ntau cov pixels ywj pheej los ntawm kev teeb tsa thiab kev sib xyaw ua ke.Raws li cov yam ntxwv ntawm kev sib cais pixels los ntawm ib leeg, LED hluav taws xob tso saib tsuas tuaj yeem nthuav dav nws txoj kev tswj hwm kev tsav tsheb los ntawm cov teeb liab digital.Thaum lub pixel illuminated, nws lub luminous lub xeev yog tsuas yog tswj los ntawm tus maub los, thiab nws yog tsav ntawm nws tus kheej.Thaum cov vis dis aus yuav tsum tau nthuav tawm hauv cov xim, nws txhais tau hais tias qhov ci thiab xim ntawm txhua pixel yuav tsum tau tswj kom zoo, thiab kev ua haujlwm scanning yuav tsum ua kom tiav synchronously nyob rau hauv ib lub sijhawm.
Qee cov khoom siv hluav taws xob LED loj yog tsim los ntawm kaum tawm txhiab tus pixels, uas ua rau muaj kev nyuaj ntau hauv cov txheej txheem ntawm kev tswj xim, yog li cov kev xav tau siab dua tau muab tso rau hauv cov ntaub ntawv xa mus.Nws tsis yog qhov tseeb los teeb tsa D / A rau txhua pixel hauv cov txheej txheem tswj tiag tiag, yog li nws yog qhov tsim nyog los nrhiav cov tswv yim uas tuaj yeem tswj tau cov txheej txheem pixel nyuaj.
Los ntawm kev tshuaj xyuas lub hauv paus ntsiab lus ntawm lub zeem muag, nws pom tau tias qhov nruab nrab brightness ntawm ib pixel feem ntau nyob ntawm nws qhov ci-tawm piv.Yog tias qhov ci-tawm piv tau raug kho kom zoo rau qhov taw tes no, kev tswj tau zoo ntawm qhov ci tuaj yeem ua tiav.Kev siv lub hauv paus ntsiab lus no rau LED cov khoom siv hluav taws xob txhais tau tias hloov cov teeb liab digital mus rau lub sijhawm teeb liab, uas yog, kev hloov pauv ntawm D / A.
5. Kev tsim kho cov ntaub ntawv thiab kev siv thev naus laus zis
Tam sim no, muaj ob txoj hauv kev tseem ceeb ntawm kev npaj pab pawg nco.Ib qho yog kev sib xyaw pixel txoj kev, uas yog, tag nrho cov ntsiab lus pixel ntawm daim duab tau muab khaws cia rau hauv ib lub cim xeeb lub cev;lwm qhov yog txoj kev dav hlau me ntsis, uas yog, tag nrho cov ntsiab lus pixel ntawm daim duab tau khaws cia hauv lub cim xeeb sib txawv.Qhov cuam tshuam ncaj qha ntawm kev siv ntau lub cev khaws cia yog kom paub ntau yam pixel cov ntaub ntawv nyeem ib zaug.Ntawm cov saum toj no ob lub tsev cia khoom, txoj kev dav hlau me me muaj qhov zoo dua, uas yog qhov zoo dua rau kev txhim kho cov nyhuv ntawm LED npo.Los ntawm cov ntaub ntawv rov tsim dua Circuit Court kom ua tiav cov kev hloov pauv ntawm RGB cov ntaub ntawv, tib qhov hnyav nrog cov pixels sib txawv yog organically ua ke thiab muab tso rau hauv cov qauv cia nyob ib sab.
6. ISP tshuab hauv logic Circuit Court tsim
Cov tsoos LED hluav taws xob zaub tswj Circuit Court yog tsim los ntawm cov pa digital Circuit Court, uas feem ntau tswj los ntawm kev sib txuas digital.Hauv kev siv thev naus laus zis niaj hnub, tom qab qhov kev tsim hluav taws xob tau ua tiav, lub rooj tsav xwm hluav taws xob tau tsim ua ntej, thiab cov khoom siv cuam tshuam raug teeb tsa thiab cov nyhuv raug kho.Thaum lub Circuit Court board logic muaj nuj nqi tsis tuaj yeem ua tau raws li qhov xav tau tiag tiag, nws yuav tsum tau rov ua dua kom txog thaum nws ua tau raws li qhov siv tau.Nws tuaj yeem pom tau tias txoj kev tsim qauv ib txwm muaj tsis yog tsuas yog muaj qee qhov kev cuam tshuam ntawm cov txiaj ntsig, tab sis kuj muaj lub voj voog tsim ntev, uas cuam tshuam rau kev txhim kho zoo ntawm ntau yam txheej txheem.Thaum cov khoom ua tsis tiav, kev saib xyuas yog qhov nyuaj thiab tus nqi siab.
Raws li qhov no, qhov system programmable thev naus laus zis (ISP) tau tshwm sim, cov neeg siv tuaj yeem muaj lub luag haujlwm ntawm kev rov hloov kho lawv tus kheej lub hom phiaj tsim thiab lub kaw lus lossis lub rooj tsav xwm hauv Circuit Court thiab lwm yam khoom siv, paub txog cov txheej txheem ntawm cov neeg tsim khoom kho vajtse program rau software program, digital system ntawm cov khoom siv. hauv paus ntawm system programmable technology coj mus rau qhov tshiab saib.Nrog rau kev qhia txog cov txheej txheem programmable technology, tsis tsuas yog lub voj voog tsim luv luv, tab sis kuj tseem siv cov khoom siv tau nthuav dav, kev saib xyuas thaj chaw thiab lub hom phiaj cov khoom siv tau yooj yim.Ib qho tseem ceeb ntawm qhov system programmable technology yog tias nws tsis tas yuav txiav txim siab seb cov khoom siv xaiv puas muaj kev cuam tshuam thaum siv cov software los nkag rau hauv logic.Thaum lub sij hawm tawm tswv yim, cov khoom tuaj yeem xaiv tau ntawm qhov xav tau, thiab txawm tias cov khoom siv virtual tuaj yeem xaiv.Tom qab cov tswv yim tiav lawm, kev hloov kho tuaj yeem ua tiav.
Post lub sij hawm: Dec-21-2022
