1. dot npo
Lub ntsiab lus ntawm dot pitch nyob rau hauv industrial LCD npo yog qhov kev ncua deb ntawm ob pixels. Nws tsuas yog nyob ntawm qhov deb ntawm cov neeg tuaj saib. Feem ntau hais lus, lub tswv yim ntawm dot pitch feem ntau yog siv rau sab nraum zoov cov ntxaij vab tshaus, xws li P7.62, P6, P10, P8, P16, P12, thiab lwm yam, hauv millimeters. Qhov pom kev deb ntawm sab nraum zoov LCD npo yog feem ntau nyob rau hauv 30 meters, feem ntau tsis ntau dua li P16 module. Qhov nruj dua qhov dot suab, qhov muag ntau dua cov fonts tso tawm ntawm lub vijtsam zaub, thiab ntau qhov chaw duab cov ntsiab lus hauv cheeb tsam, tus nqi siab dua ntawm qhov screen.
2. Scanning txoj kev:
Txoj kev scanning feem ntau txiav txim siab daim ntawv txuas ntawm cov modules. Cov txheej txheem scan feem ntau suav nrog 1/8, 1/16, 1/2, 1/4, thiab zoo li qub. Vim hais tias LED zaub screen yog refreshed kab los ntawm kab, txoj kev scanning kuj txiav txim siab cov zaub refreshing txoj kev. Yog hais tias 1/16 yog refreshed li 1 kab txhua lub sij hawm, 16 kab yog ib tug scanning voj voog, uas yuav tsum tau plaub ABCD signals los tswj; 1/8 txhais tau hais tias 1 kab rov kho dua txhua zaus, thiab 8 yog lub voj voog scan, uas yuav tsum muaj peb lub cim ntawm ABC los tswj nyias; thiab lwm yam. Yog tias tib lub teeb ci LED siv, qhov ci ntawm 1/16 scan yog qis dua li ntawm 1/8, thiab qhov ci ci zoo li qub yog qhov siab tshaj plaws. Cov ntxaij vab tshaus sab hauv feem ntau siv 1/16 scanning, thiab cov ntxaij vab tshaus sab nrauv thiab sab nraum zoov feem ntau siv 1/16 lossis 1/8. Rau qhov chaw ib puag ncig uas cov tshuaj ntsuam ua kua feem ntau raug tshav ntuj ncaj qha, nws yog qhov zoo tshaj plaws los siv 1/4 scan.
