Txoj kev loj hlob ntawm LED splicing cov ntxaij vab tshaus tau sai thiab sai, los ntawm qis-kawg mus rau high-end, uas kuj tau nyiam cov neeg' s mloog. Lub ntse puv xim zaub integrates lub teeb thiab hluav taws xob nrog lub computer tswj, thiab tau dav siv nyob rau hauv ntau yam teb. Cov pixels txais LED lub teeb-emitting diodes, thiab ntau lub teeb-emitting diodes yog teem nyob rau hauv ib tug dot matrix los ua ib tug LED array, yog li tsim ib tug LED screen. Los ntawm kev sib txawv LED tsav tsheb, cov duab sib txawv tuaj yeem tau txais. Yog li ntawd, qhov zoo thiab qhov tsis zoo ntawm LED tsav nti ua lub luag haujlwm tseem ceeb hauv cov zaub zoo ntawm LED splicing screen. LED tsav chips tuaj yeem muab faib ua cov khoom siv dav dav thiab cov khoom siv tshwj xeeb. Cov hom phiaj dav dav feem ntau yog siv rau hauv cov khoom qis kawg ntawm LED splicing cov ntxaij vab tshaus, xws li sab hauv tsev ib leeg-xim thiab dual-xim cov ntxaij vab tshaus.
Tam sim no, LED tsav tsheb siab tsav tsheb nti tuam txhab lag luam feem ntau suav nrog Toshiba (Toshiba), TI (Texas Instruments, Tebchaws Meskas), SONY (Sony), MBI (ntaus thev naus laus zis), SITI (tsim thev naus laus zis). Hauv kev lag luam hauv tsev LED zaub, cov chips no muaj cov ntawv thov.
Txij li thaum lub LED yog cov yam ntxwv tam sim no, uas yog, nyob rau hauv lub premise ntawm saturated conduction, nws brightness hloov nrog rau qhov loj ntawm tam sim no, thiab tsis hloov nrog lub voltage ntawm nws. Qhov loj tshaj plaws ntawm lub siab nti nti yog muab qhov tso zis tas li tam sim no, kom ntseeg tau tias kev tsav tsheb ruaj khov ntawm LED, thiab tshem tawm qhov tshwm sim flicker ntawm LED. Nws muaj cov yam ntxwv ntawm cov zis loj tam sim no thiab tsis tu ncua tam sim no. Nws yog tsim rau sab nraum zoov puv xim cov ntxaij vab tshaus thiab sab hauv tsev puv xim cov ntxaij vab tshaus qhov twg siab tam sim no thiab siab duab zoo yuav tsum tau.
LED zaub tsav tsheb feem ntau yog ib qho kev sib txuas ntawm qhov tam sim no (tam sim no 16 channels) ntxiv rau kev tswj hwm grey. IC tsis ua ke nrog DC / DC fais fab mov module. Hauv cov teeb pom kev zoo thiab teeb pom kev zoo, cov xov tooj ntawm cov channel yuav raug txo, thiab DC / DC converter modules feem ntau yog ib feem ntawm IC. LED zaub them nyiaj zoo rau qhov refresh npaum li cas thiab cov duab ua haujlwm ntawm lub vijtsam. Kev sib txuam siab, siab refresh npaum li cas thiab kev daws teeb meem siab yog cov cim tseem ceeb rau kev txiav txim siab kev ua haujlwm ntawm LED splicing cov ntxaij vab tshaus. Qhov no yuav tsum tau hais tias qhov tam sim no ntawm LED zaub tsav tsheb IC raws yog qhov zoo sib xws, kev sib txuas lus ceev ceev thiab cov lus teb tam sim no tsis tu ncua. Zaub tsav tshuab tsom rau LED grey nplai linearity thiab cov lus teb ceev ceev. Backlight factories siv ntau txoj hlua thiab ntau txoj hlua ua kom tiav kev khiav hauj lwm voltages txog 50V txog 60V, uas yuav ua rau kom cov txheej txheem thev naus laus zis xav tau rau cov tsav tsheb ICs. Yuav tsum tau xav txog qhov sib txawv VF ntawm txhua LED tom qab txoj hlua high voltage. Qhov no muaj kev cuam tshuam zoo rau tag nrho kev siv hluav taws xob thiab kev tswj xyuas tas li tam sim no.
