LED dot matrix zaub yog ib hom zaub nrog LED ua ib lub pixel, uas yog tsim ntawm siab ci LED ntxhais array, epoxy cob, thiab yas pwm. Nrog cov yam ntxwv ntawm kev tsim khoom yooj yim thiab kev teeb tsa yooj yim, nws tau siv dav hauv txhua yam pej xeem sawv daws, xws li pib tshaj tawm lub chaw nres tsheb, tshaj tawm kev tshaj tawm thiab ntawv xov xwm.
Kev faib tawm ntawm LED dot matrix zaub
Muaj ob hom LED dot matrix zaub: monochrome thiab bicolor, uas tuaj yeem tso saib liab, daj, ntsuab, txiv kab ntxwv, thiab lwm yam. Cov ntxaij LED muaj 4 * 4, 4 * 8, 5 * 7, 5 * 8 8 * 8, 16 * 16, 24 * 24, 40 * 40 thiab lwm yam; raws li tus naj npawb ntawm pixels, nws tuaj yeem faib ua ob qhov xim yooj yim, peb qhov xim yooj yim thiab lwm yam. Raws li cov xim sib txawv ntawm cov pixels, cov xim ntawm cov ntawv, cov duab thiab lwm cov ntsiab lus tseem txawv. Tib qho xim yooj yim ntawm dot matrix tuaj yeem tsuas tso saib cov xim ruaj khov xws li liab, ntsuab, daj thiab lwm yam. Cov xim ntawm ob lub xim yooj yim thiab peb qhov yooj yim xim dot matrix cov ntsiab lus teeb pom kev los ntawm cov xim sib txawv LED hauv pixel cov hom sib xyaw ua ke tau txiav txim siab, piv txwv li, thaum liab thiab ntsuab tag nrho rau, daj tuaj yeem tso tawm tau; yog tias lub teeb pom kev zoo rau lub sijhawm ntawm diode tau tswj hwm raws li hom mem tes, 256 lossis siab dua qhov grey qib zaub tuaj yeem pom tau, thiab cov xim tseeb xim tuaj yeem pom tau.
Thaum LED dot matrix zaub siv nyob rau hauv ib qho thaiv, nws tsis tuaj yeem hloov lub digital tub raj los qhia tus lej tab sis kuj tseem tso tawm ntau yam cim ntawm Suav thiab Sab Hnub Poob thiab cov cim. Piv txwv, 5 x 7 dot matrix zaub yog siv los tso ntawv Western. Lub 5 * 8 dot matrix zaub yog siv los tso lus Suav thiab Western, thiab 8 * 8 dot matrix zaub yog siv los tso lus Suav cov cim thiab cov duab. Cov zaub loj dua tuaj yeem tsim los ntawm kev sib xyaw ntawm ntau cov dot matrix lus, tab sis xws li cov cuab yeej siv tau zoo feem ntau tsav los ntawm microcomputer lossis ib leeg-chip microcomputer.
Kev tsav tsheb ntawm LED dot matrix zaub
Nws tuaj yeem pom los ntawm cov qauv sab hauv ntawm LED dot matrix zaub uas tus ntaus ntawv yuav tsum tau tsav los ntawm kev tshuaj xyuas zoo. Vim tias feem ntau ntawm LED cores yog ntawm qhov siab siab hom, qhov kev tsav tsheb ntawm ib qho LED hauv kab lossis kab ntawv tuaj yeem yog qhov mem tes nqaim, tab sis qhov nruab nrab tam sim no yuav tsum tau txwv tsis pub dhau 20mA. Hauv cov ntxaij hluav taws xob feem ntau tso saib, cov hluav taws xob pem hauv ntej poob ntawm ib qho LED yog kwv yees li 2V. Txawm li cas los xij, cov hluav taws xob pem hauv ntej poob ntawm ib qho LED hauv cov ntxaij ntoo zaub nrog qhov chaw ci loj+10 yog li 6V.
Lub vijtsam loj saib lub tshuab ua haujlwm dav dav yog feem ntau ntawm cov qauv me me uas muaj ntau lub laub LED nyob rau hauv txoj kev ntawm kev tsim tsev. Txhua qhov me me muaj nws tus kheej tswj kev tswj hwm. Tom qab kev sib xyaw ua ke, tsuas yog ib tus tswv tswj hwm yog tswvcuab los tswj cov lus txib thiab cov ntaub ntawv ntawm txhua qhov module. Hom qauv no yooj yim thiab yooj yim los txhim kho thiab tswj.
Cov hom zaub ntawm LED dot matrix zaub
Muaj cov qauv zoo nkauj zoo nkauj thiab cov qauv zoo rau txhua qhov qauv hauv cov kab hluav taws xob LED teeb pom kev zoo. Lub hauv paus ntsiab lus ntawm cov qauv zoo li qub yog qhov yooj yim thiab kev tswj tau yooj yim, tab sis cov khoom siv hluav taws xob txuas yog yooj yim. Nyob rau hauv daim ntawv thov siv, dynamic zaub feem ntau adopts dynamic zaub hom. Dynamic zaub ua haujlwm los ntawm hom scanning, tsav los ntawm lub mem tes nqaim nrog qhov loj dua tus nqi. Nws tsis tu ncua xaiv tag nrho cov kab ntawm cov tshuaj ntsuam zaub los ntawm sab saum toj mus rau hauv qab, tib lub sijhawm, nws xa tawm cov mem tes qhia txog cov duab lossis cov lus qhia rau txhua kab ntawv thiab rov ua cov haujlwm saum toj no kom pom ntau cov duab lossis cov kab lus.
Kab lus thiab cov duab hauv Is Taws Nem, yog muaj ib qho dab tsi thov hu rau peb kom tshem tawm.
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