Tam sim no, ntau thiab ntau lub teeb pom kev LED tau siv nyob rau hauv tsev, tshwj xeeb tshaj yog nyob rau hauv cov tsev tos qhua loj thiab cov khw muag khoom loj, uas lawv tau txais kev pom zoo nrog cov neeg tshaj tawm. Yog li, dab tsi yog qhov yuav tsum tau ua rau cov tsev so loj thaum xaiv LED sab hauv tsev puv -xim cov ntxaij vab tshaus?
Nyob rau hauv ib puag ncig sab hauv tsev, loj puv -xim LED hluav taws xob cov khoom siv nrog thaj tsam ntau dua 5m2 feem ntau muaj peb txoj kev xaiv: zoo tib yam rear projection, DLP (Digital Light Processing), thiab LED zaub. Cia peb tshawb txog xya yam hauv tsev LED zaub qauv thiab lawv cov kev daws teeb meem.
Qhov zoo ntawm lub nraub qaum- projection qhia yog me me pixel suab thiab lub ntsiab lus siab, thaum qhov tsis zoo yog qhov ci ntsa iab, qhov pom me me, thiab lub teeb lub neej luv (tsuas yog ob peb txhiab teev). Qhov zoo ntawm plasma splicing kuj yog me me pixel suab thiab siab txhais, tab sis qhov tsis zoo yog muaj cov seams; tam sim no, qhov tsawg tshaj plaws seam tuaj yeem ncav cuag 1 hli. Hauv qab - qhov projection thiab plasma tso saib yog tsim nyog rau saib nyob ze. Qhov zoo ntawm cov lus qhia LED yog qhov ci ntsa iab thiab tsis muaj seams, thaum qhov tsis zoo yog tias cov pixels yog qhov ntxhib, ua rau qis dua txhais. Tam sim no, qhov ceev tshaj plaws ntawm kev lag luam muaj nyob hauv tsev puv - xim LED zaub yog P4, piv txwv li, 62500 pixels / m2. LED zaub yog tsim rau cov chaw sab hauv tsev nrog rau kev pom ntev dua.
Thaum xaiv ib qho screen LED sab hauv tsev, cov hauv qab no yuav tsum tau xav txog:
1. Tiag Pixels vs. Virtual Pixels
Zoo ib yam li sab nraum zoov puv -xim cov ntxaij vab tshaus, cov pixel suav ntawm sab hauv tsev puv - xim cov ntxaij vab tshaus kuj muab faib ua pixels tiag tiag thiab pixels virtual.
2. LED Chips
Zoo ib yam li sab nraum zoov puv -xim cov ntxaij vab tshaus, nws feem ntau pom zoo tias sab hauv tsev puv - xim cov ntxaij vab tshaus siv Silan Microelectronics chips rau xiav thiab ntsuab LEDs, thiab Guangjia los yog Guanglei chips rau liab LEDs. High- cov khoom kawg raug pom zoo kom siv cov chips los ntawm Nichia (Nyiv) thiab CREE (USA).
3. Daim ntawv ntim khoom
Cov ntaub ntawv LED nto ntawm sab hauv tsev puv - xim LED cov lus qhia muaj xws li ib lub teeb, sub-surface mount, peb-hauv-ib qhov chaw mount, thiab peb-hauv-ib qho kev sib xyaw ua ke, nrog qhov sib txawv. Qhov zoo ntawm cov ntim ntim ntim yog qhov pom loj, zoo luminous sib xws, thiab yooj yim ntawm kev siv vuam tsis siv neeg thiab ua, ua rau nws cov khoom tseem ceeb rau tag nrho - xim LED cov ntxaij vab tshaus, tab sis tus nqi tam sim no kuj siab; tib lub teeb muaj qhov pom me me me, qhov ci dua me ntsis, thiab tus nqi qis dua. Sub-surface mount yog tiag tiag ib hom ntawm ib lub teeb. Ob lub teeb ib leeg thiab sub-nto mount yog tus pheej yig thiab yog cov khoom siv hloov pauv. 4. Pixel Density
Vim lub tshav kub tseem ceeb uas tsim los ntawm sab hauv tsev puv - xim LED chips thiab qhov ceev ntawm cov tswj Circuit Court, qhov pixel ntom ntawm cov khoom lag luam muaj puv - xim cov ntxaij vab tshaus tseem tsis tuaj yeem siab heev. Lub ntsiab pixel ntom muaj yog P5, P6, P7.62, P8, thiab P10.
5. Txoj kev tsav tsheb
Nyob sab hauv tsev puv - xim LED zaub siv qhov kev tsav tsheb tam sim no thiab kev soj ntsuam dynamic (tsuas yog 1/4 thiab 1/8 scanning txoj kev). Nrog tib LED chips, 1/4 scanning txoj kev yuav tsum tau ntau circuitry thiab ua rau brightness ntau dua.
