Hom LED pom cov duab
Oct 23, 2018
1, LED ci ntsa iab
Lub ci ci ntawm ib lub teeb-emitting diode feem ntau qhia los ntawm Luminous Intensity nyob rau hauv chav nyob ntawm candela cd; 1000ucd (micro-candela) = 1 mcd (millicandela), 1000mcd = 1 cd. Qhov teeb ntawm lub teeb ntawm ib qho teeb meem siv ntawm sab hauv tsev yog feem ntau ntawm 500ucd-50 mcd, thaum lub teeb ci ntawm ib lub teeb rau sab nraum zoov yuav tsum yog feem ntau 100 mcd-1000 mcd los yog 1000 tauj tshaj los sis ntau dua.
2, LED pixel module
Cov LEDs yog teem rau hauv matrix lossis mem cim ntu thiab ua ntej-tsim rau hauv cov qauv kev hloov hauv cov qauv. Indoor LED zaub feem ntau siv 8 * 8 pixel module, 8 lo lus 7-ntu digital module. Sab nraum zoov LED cov duab pixel module muaj 4 * 4, 8 * 8, 8 * 16 pixels thiab lwm yam. Cov pixel module rau sab nraum zoov zaub npo kuj tseem raug xa mus ua ib lub header nruas module vim txhua pixel muaj li ntawm ntau tshaj ob lub raj tshuaj tub luam LED.
3, pixel (PixEL) thiab pixel inch
Txhua LED teeb pom kev zoo (teev) uas yuav tswj tau tus kheej hauv cov yeeb yam LED hu ua pixel (los yog pixel). Pixel inch ∮ yog hais txog txoj kab uas hla txhua pixel hauv millimeters.
Rau cov sab hauv tsev, ib qho yog feem ntau yog ib qho LED uas muaj duab zoo. Lub sab hauv tsev pixel taub feem ntau pom muaj nyob rau hauv ∮3.0, ∮3.75, ∮5.0, ∮8.0, thiab lwm yam., Nrog ∮3.75 thiab ∮5.0 yog qhov tseem.
Nyob rau hauv ib qho chaw sab nrauv, thiaj li ua rau kom muaj kev ci ci thiab nce kab ntawm pom, ib qho pixel muaj ntau tshaj ob pawg LEDs; vim hais tias ob lossis ntau ntau pawg LEDs feem ntau tsis yeej, qhov sab nraum zoov teeb pixel inch feem ntau yog hais los ntawm qhov nruab nrab qhov sib nraus ntawm ob lossis ob pixels. : PH10, PH11.5, PH16, PH22, PH25.
4, teev suab, pixel ceev thiab cov lus qhia muaj peev xwm
Lub plawv-rau-qhov chaw lossis qhov nruab nrab ntawm qhov chaw (Dot Pitch) ntawm ob lossis ob qho pixels ntawm cov duab LED; cov pixels ib cheeb tsam twg yog hu ua pixel density; cov nqi ntawm cov khoom tso tawm rau ib cheeb tsam twg yog hu ua cov lus qhia. Tus essence ntawm no peb yog piav qhia tib lub ntsiab lus: qhov kis ntawm qhov sib txawv yog qhov kev ncua deb ntawm ob lub pixels kom muaj kev cuam tshuam cov pixel density, cov dot spacing thiab pixel ntom yog lub zog ntawm cov zaub; cov ntaub ntawv muaj peev xwm yog cov ntaub ntawv nqa lub peev xwm ntawm pixel ceev. Chav tsev kom muaj nuj nqis.
Cov me me qhov teev, qhov ntau dua qhov pixel ceev, cov lus qhia ntau dua, thiab qhov ze ntawd qhov nrug yog tsim rau saib. Qhov loj dua cov pav suab, qhov qis dua qhov pixel ceev, lub peev xwm ntawm cov ntaub ntawv, thiab qhov tseeb ntawm qhov deb yog tsim rau saib.
5, kev daws teeb meem
Tus naj npawb ntawm cov kab thiab txhua daim duab ntawm LED tso saib pixels yog hu ua cov teeb meem ntawm LED cov duab. Qhov kev daws teeb meem yog tag nrho cov pixels hauv cov lus, uas pom tau tias cov lus qhia muaj peev xwm ntawm ib qho khoom.
6, LED zaub (LED vaj huam sib luag)
Cov teeb pixel pixel yog teem nyob rau hauv ib lub matrix raws li qhov kev xav tau tiag tiag, thiab muaj kev sib txuas nrog ib lub voj voog cov qauv tsav, ib lub zog DC lub zog, ib software, ib kab, thiab ib qho zoo nkauj kho kom tsim tau ib qho screen LED.
7, grayscale
Grey nplai hais txog qhov kev hloov ntawm qhov pixel pixel, thiab qhov theem ntawm cov xim thawj feem ntau muaj 8 txog 1024 theem. Piv txwv, yog tias qhov sib npaug ntawm txhua tus thawj xim yog 256, rau ib lub ntsiab xim ob lub xim, qhov xim tso xim yog 256 × 256 = 64K, uas yog hu ua 256 xim xim.
8, xim thawj ob
Feem ntau cov xim LED nthuav qhia hnub no yog cov ntxaij dub dual xim, uas yog, txhua lub pixel muaj ob lub xyoos: ib qho rau cov tuag liab thiab ib qho rau cov neeg tuag ntsuab. Lub pixel yog liab thaum liab tuag yog lit, ntsuab yog ntsuab thaum ntsuab tuag yog lit, thiab lub pixel yog daj thaum liab thiab ntsuab tuag yog simultaneously lit. Ntawm lawv, liab thiab ntsuab yog hu ua xim thawj.
9, tag nrho xim
Cov xim liab thiab xim ntsuab ob lub xim ntxiv nrog rau xim xiav xim rau daim xim tag nrho xim ntawm peb cov xim thawj. Txij li thaum lub tshuab los tsim cov xim xiav xim thiab ntshiab ntsuab dies yog tam sim no mature, lub lag luam yog tag nrho xim.
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