Ukwaziswa kojongano lwe-LVDS lwesikrini se-TFT-LCD LCD

Ingcaciso ye-LVDS Interface

Inkcazo yojongano lwe-LVDS ibhekisa kumsebenzi wephini lojongano lwesiphelo se-LVDS kwicala lephaneli yeLCD, enokufundwa ngokubanzi ngokudibana nedatha yasefektri yokuqala yesikrini se-LCD (ehlala ibizwa ngokuba yincwadi yenkcazo yesikrini).Nangona imigangatho eyahlukeneyo yesiNgesi ye-LCD umsebenzi wojongano lwesikrini yahlukile, Kodwa akukho nzima ukubona oko, ukugweba ngolandelelwano lweeleta zayo eziphambili kunye namanani, Umzekelo, i-CLAA170EA02 imodeli ethile yesikrini se-LCD yesikrini, Jonga kwitafile yenkcazo yojongano olunikezwe umenzi, Njengoko kunokubonwa kwikholamu emfutshane ngesiNgesi, Nge-RXO kunye ne-RXE, Ijelo ngalinye linenombolo “0″ ~ “3″ isiginali yedatha yeqela, Kwaye ineseti enye yemiqondiso yewotshi (RXOC okanye RXEC), Oku kubonisa ukuba isikrini LCD yi-30-pin, kabini, 8-bit screen, Kwakhona akukho nzima ukubona umsebenzi pin yayo, Oko kukuthi, “RXO0-” imele iseti yokuqala data 1-, “RXO0 +” kuthetha iseti yokuqala. yedatha: 1 +;"RXE0-" ibonisa isethi yesibini yedatha 1-, "RXE0 +" ibonisa isethi yesibini yedatha 1 +, Eminye, njalo njalo.I-interface ye-LVDS ibonakalisa i-LVDS isiNgesi esifutshane "I-Voltge ephantsi yoMbonakaliso oMnahluko wokuPhatha" oko kuthetha uphawu olusezantsi loxinzelelo.I-LVDS yoyisa ukungalungi kokusasazwa kokusetyenziswa kwamandla aphezulu kunye ne-EMI yokuphazamiseka kombane kwimowudi yenqanaba le-TTL, kwaye yimowudi yokuhambisa umqondiso wevidiyo yedijithali.Ujongano lwemveliso ye-LVDS lisebenzisa i-voltage esezantsi kakhulu (malunga ne-350mV) ukuhambisa idatha ngokwahlukana kwiintambo ezimbini ze-PCB okanye iperi ye-balance cables.I-interface ye-LVDS ihambisa umqondiso kwi-PCB eyahlukileyo okanye intambo yokulinganisa ngesantya samakhulu eemitha ngesekhondi.Ngenxa ye-voltage ephantsi kunye nemowudi ye-drive yangoku ephantsi, ineenzuzo zengxolo ephantsi kunye nokusetyenziswa kwamandla aphantsi.Kwi-TV yombala we-LCD, umgca we-LVDS usebenzisa intambo yokulinganisa ubukhulu becala, ingumgca wesibini ojijekileyo ngokwenene.I-LVDS yojongano lwesekethe yecandelo le-LCD yombala we-TV okanye umboniso wombala kwi-decoding yokuqala yeempawu zegalelo (ezifana ne-TV, i-AV, njl.), ukufumana isignali ye-RGB, inkqubo yayo yokucubungula iyafana nombala weTV oqhelekileyo, kwaye emva koko ngokuguqulwa kwe-RGB-LVDS, isibonakaliso se-LVDS esiphumayo, sithunyelwe kwisikrini se-LCD.Ekubeni i-TFT kwisikrini se-LCD ibona kuphela isignali ye-TTL (RGB), i-LVDS ethunyelwe kwisikrini se-LCD idinga ukucacisa uphawu lwe-TTL.Ingabonwa ukuba i-interface ye-LVDS yesekethe ibandakanya iinxalenye ezimbini: i-LVDS output interface yesiphaluka kwicala le-motherboard (i-LVDS transmitter), kunye ne-LVDS input interface circuit (i-LVDS receiver) kwicala lepaneli ye-LCD.I-terminal yothumelo ye-LVDS iguqula isignali ye-TTL kwisignali ye-LVDS, kwaye emva koko idlulisele umqondiso kwi-LVDS decoding IC kwicala lephaneli ye-LCD ngentambo yomqolo okanye intambo eguquguqukayo phakathi kwephaneli yokuqhuba kunye nephaneli yeLCD), iguqula isiginali ye-serial ibe uphawu oluhambelanayo lwenqanaba leTTL, kwaye emva koko uyithumele kulawulo lwexesha le-LCD kunye nenqanaba lesekethe yedrayivu.