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 ngokujongana nedatha yasefektri yokuqala yesikrini se-LCD (ehlala ibizwa ngokuba yincwadi yenkcazo yesikrini). Nangona imigangatho eyahlukeneyo yesiNgesi ye-LCD umsebenzi wojongano lwesikrini yahlukile, Kodwa akunzima ukubona ukuba, ngokugweba ngolandelelwano lweeleta zayo eziphambili kunye namanani, Umzekelo, imodeli ethile ye-LCD yesikrini ye-CLAA170EA02, Jonga kwitafile yenkcazo yojongano olunikezwe ngumenzi, Njengoko kunokubonwa kwikholamu emfutshane ngesiNgesi, Nge-RXO kunye ne-RXE, Itshaneli ngalinye linenombolo "~ 1 ″ yedatha ye-3" iimpawu (i-RXOC okanye i-RXEC), Oku kubonisa ukuba isikrini se-LCD yi-30-pin, i-double, i-8-bit screen, Kwakhona akunzima ukubona umsebenzi wayo we-pin, Oko kukuthi, "RXO0-" imele isethi yokuqala yedatha 1-, "RXO0 +" ithetha isethi yokuqala yedatha: 1 +; "RXE0-" ibonisa isethi yesibini yedatha 1-, "RXE0 +" ibonisa isethi yesibini yedatha 1 +, Eminye, njalo njalo. I-interface ye-LVDS ifaka i-LVDS isiNgesi esifutshane "I-Voltge ephantsi yoMbonakaliso oMnahluko oMbi" othetha uphawu olusezantsi loxinzelelo. I-LVDS yoyisa ukungalungi kokusasazwa kokusetyenziswa kwamandla aphezulu kunye ne-EMI yokuphazamiseka kombane kwimowudi yenqanaba le-TTL, kwaye yimowudi yokuhanjiswa komqondiso wevidiyo yedijithali. Ujongano lwemveliso ye-LVDS lisebenzisa i-voltage ephantsi kakhulu (malunga ne-350mV) ukuhambisa idatha ngokwahlukana kwiingcingo ezimbini ze-PCB okanye iperi ye-balance cables. I-interface ye-LVDS ihambisa umqondiso kwi-PCB eyahlukileyo okanye intambo yokulinganisa ngesantya samakhulu eemitha ngomzuzwana. 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 ujongano lwesekethe icandelo LCD umbala TV okanye umboniso umbala kwi-decoding yokuqala yemiqondiso igalelo (ezifana TV, AV, njl.), ukufumana uphawu RGB, inkqubo yayo processing ngokusisiseko iyafana nombala eqhelekileyo TV, kwaye ke ngokusebenzisa RGB-LVDS ukuguqulwa, isiphumo LVDS uphawu, ithunyelwe kwiscreen 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 yokudlulisa i-LVDS iguqula isignali ye-TTL kwisignali ye-LVDS, kwaye emva koko idlulisele umqondiso kwi-LVDS decoding IC kwicala lepaneli ye-LCD ngentambo yomgca okanye intambo eguquguqukayo phakathi kwephaneli yokuqhuba kunye nepaneli ye-LCD), ukuguqula umqondiso we-serial ube ngumqondiso ohambelanayo wezinga le-TTL, kwaye emva koko uyithumele kwi-LCD yolawulo lwexesha le-circuit kunye ne-rank drive.