Dab Tsi Yog DLP Technology
DLP yog cov Dijital Teeb, uas yog video yees tshuab, tsim los ntawm Texas Instruments.
DLP tech yuav siv tau ntau hom video tso saib platforms, tab sis yog feem ntau siv rau hauv qhov project projectors. Nws tseem ceeb heev uas yuav tsum nco ntsoov tias yav dhau los, DLP cov cuab yeej siv tau siv hauv qee qhov kev qhia hauv TV (rear-projection TVs tsis muaj ntxiv lawm).
Feem ntau cov video projectors rau cov neeg siv siv uas siv DLP kev tsim duab cov duab mus rau ib qho screen uas siv cov txheej txheem hauv qab no:
Ib lub teeb kis tau los ntawm lub kauj vuam kiv tig, uas tom qab ntawd ntuav tawm ntawm ib qho ntiv tes (hu ua DMD nti) uas muaj ib qhov chaw uas muaj cov qhov tsom iav tsom iav. Cov qauv ntawm lub teeb pom kev zoo ces dhau ntawm lub lens, thiab mus rau qhov kev tshuaj ntsuam.
DMD Chip
Ntawm qhov tseem ceeb ntawm txhua DLP video projector yog DMD (Digital Micromirror Device). Qhov no yog ib hom ntawm nti uas yog teeb tsa kom txhua pixel yog ib daim duab zoo li cas. Nws txhais tau tias nyob qhov twg ntawm ib rau ob lab micromirrors ntawm txhua qhov DMD, nyob ntawm qhov kev daws teeb meem los siv thiab seb daim iav qaij ceev npaum li cas.
Raws li cov duab video tau muab tso rau ntawm DMD nti. Lub micromirrors ntawm lub nti (nco ntsoov: txhua micromirror nruab nrab yog ib pixel) ces qaij sai heev thaum hloov duab.
Txoj kev no ua lub grayscale foundation rau daim duab. Tom qab ntawd, cov xim ntxiv yog lub teeb kis tau los ntawm kev sib tsuam nrawm qaum siab thiab tsom tawm ntawm cov micromirrors rau ntawm DLP nti thaum lawv ceev nrooj tawm los yog deb ntawm cov xim log thiab lub teeb ci.
Cov degree ntawm qaij ntawm txhua lub micromirror ua ke nrog cov kiv nrawm spinning kauj txiav txim siab cov qauv xim ntawm daim duab duab. Raws li qhov sib txawv ntawm lub teeb ci tawm ntawm cov micromirrors, nws raug xa mus los ntawm lub lens thiab tuaj yeem kwv yees tau rau lub voj voog loj uas tsim nyog siv rau tsev ua yeeb yaj kiab.
3-Chip DLP
Lwm txoj kev uas DLP raug siv (hauv tsev ua yeeb yam hauv tsev siab los yog kev siv xuas hluav taws xob) yog siv DLP cais rau txhua tus xim thawj. Hom kev tsim no tshem tawm qhov kev xav tau rau lub kob poom xim.
Es tsis txhob xim xim, lub teeb ntawm ib qho chaw yog kis los ntawm ib lub khib nyiab, uas tsim tawm cov xim liab, ntsuab, thiab xiav xim. Qhov kev sib cais ntawm lub teeb ci ces tau xav txog txhua daim ntawm lub chips uas tau tso npe rau txhua tus thawj xim, thiab los ntawm qhov ntawd, npaj mus rau ib qho screen. Daim ntawv thov no yog kim heev, piv rau cov xim txheej txheem, uas yog vim li cas nws tsis tshua muaj rau cov neeg siv.
LED thiab Laser
Txawm hais tias 3-Chip DLP kev siv tshuab kim heev los siv, ob lwm yam, pheej yig dua lwm txoj siv tau siv tau zoo (thiab pheej yig tshaj) kom tshem tawm qhov kev xav tau rau lub kob poom tig.
Ib txoj kev yog siv lub teeb ci LED. Koj tuaj yeem muaj LED cais rau txhua tus xim thawj xim, los yog ib qho dawb LED faib ua cov xim uas siv cov paj taub hau lossis xim xim. Cov kev xaiv no tsis tsuas yog tshem tawm qhov xav tau rau lub xim log, tab sis ua rau kub tsis tshua muaj, thiab thim tsis muaj hwj chim dua ib txwm teeb. Ntxiv kev siv ntawm qhov kev xaiv no tau muab ntxiv rau ib pawg ntawm cov khoom hu ua Pico Projectors.
Lwm qhov kev xaiv yog ntiav Laser los Laser / LED Hybrid lub teeb qhov chaw, uas zoo li, cov kua hluav taws xob nkaus xwb, tsis yog tshem tawm cov xim xim, ua rau kub tsis tshua muaj, thiab thim tau hwj huam dua, tab sis kuj ua hauj lwm los txhim kho xim tu thiab ci ntsa iab. Txawm li cas los, tus laser mus kom ze yog kim kim dua LED ncaj los yog cov teeb / xim xim xaiv (tiam sis nws tseem tsis tshua kim tshaj 3-xaiv kev xaiv).
DLP Drawbacks
Txawm hais tias "ib-chip nrog xim log" version DLP tshuab yog pheej yig heev, thiab muaj peev xwm tsim cov txiaj ntsim zoo heev ntawm cov xim thiab qhov sib txawv, muaj ob qho teeb meem.
Ib tug drawback yog tus nqi ntawm lub teeb xim lub teeb (xim ci ntsa iab) tsis nyob tib theem li cov zis dawb teeb - kom paub ntau ntxiv nyeem kuv tsab xov xwm: Video Projectors thiab xim Brightness .
Qhov thib ob drawback nyob rau hauv DVR video projectors yog tus muaj "Zaj sawv Zaj Los".
Tus duab zaj dabneeg tshwm sim yog ib yam cuav uas qhia txog nws tus kheej xws li lub ntsiab lus ntawm qhov kev tshuaj ntsuam thiab qhov muag thaum tus saib pom zoo ntawm ib sab rau sab ntawm lub vijtsam lossis tig ceev ceev ntawm qhov kev tshuaj ntsuam rau ob sab ntawm chav tsev. Cov kob ntawm cov xim zoo li cov duab ntxoo me me.
Zoo hmoo, qhov no tshwm sim tsis tshwm ntau, thiab muaj coob tus neeg tsis muaj rhiab heev rau cov nyhuv txhua. Txawm li cas los xij, yog tias koj muaj kev nkag siab txog qhov txiaj ntsim no, nws muaj kev cuam tshuam. Koj cov nyhuv rau cov nyhuv zaj dab neeg yuav tsum muab coj los saib xyuas thaum uas yuav ib lub DLP video projector.
Tsis tas li ntawd, DLP video projectors uas siv cov teeb meem LED lossis Laser lub teeb muaj feem ntau tsis tshua pom cov teeb meem hauv zaj dab neeg, raws li lub kauj vev tha xim tsis muaj.
Ntau Info
Yog xav paub ntxiv txog DLP kev siv tshuab thiab DMD cov hauj lwm, kos tawm lub yees duab los ntawm Applied Science.
Piv txwv ntawm DLP video projectors rau kev ua yeeb yam hauv tsev yog:
BenQ MH530 - Yuav Los Ntawm Amazon
Optoma HD28DSE - Yuav Ntawm Amazon
ViewSonic PRO7827HD - Yuav Los Ntawm Amazon
Rau cov lus qhia ntxiv, xyuas seb peb cov npe ntawm DLP Video Projectors thiab Qhov Zoo Tshaj Plaws Hauv Pheej Yug Poob Yeeb Yaj Suab (nrog rau hom DLP thiab LCD).