Intshayelelo ye-LVDS interface yesikrini se-TFT-LCD LCD

Inkcazo ye-LVDS Interface

Inkcazo ye-LVDS interface ibhekisa kumsebenzi we-LVDS input end interface pin kwicala lephaneli ye-LCD, enokuthi ifundwe ngokubanzi ngokujonga idatha yokuqala yefektri yesikrini se-LCD (edla ngokubizwa ngokuba yincwadi yenkcazo yesikrini). Nangona imigangatho eyahlukeneyo yesiNgesi yomsebenzi we-LCD screen interface yahlukile, Kodwa akunzima ukuyibona loo nto, ukugweba ngokulandelelana koonobumba bayo abaphambili kunye namanani, Umzekelo, isikrini esithile se-CLAA170EA02 LCD, Jonga itafile yenkcazo ye-interface enikwe ngumenzi, Njengoko kunokubonwa kwikholamu emfutshane ngesiNgesi, Nge-RXO kunye ne-RXE, Itshaneli nganye inenombolo "0″ ~ "3″ isignali yedatha yeqela, Kwaye ineseti enye yezibonakaliso zewotshi (RXOC okanye i-RXEC), Oku kubonisa ukuba isikrini se-LCD sisikrini se-30-pin, esiphindwe kabini, esine-8-bit, Akunzima nokubona umsebenzi waso we-pin, Oko kukuthi, "RXO0-" imele iseti yokuqala yedatha 1-, "RXO0 +" ithetha iseti yokuqala yedatha: 1+; I-“RXE0-” ibonisa iseti yesibini yedatha 1-, i-“RXE0 +” ibonisa iseti yesibini yedatha 1+, Okunye, njalo njalo. Iimpawu ze-interface ye-LVDS. I-LVDS yi-"Low Voltage Differential Signaling" yesiNgesi efutshane ethetha isignali yomahluko ophantsi. I-LVDS iyoyisa iingxaki zokudlulisa ukusetyenziswa kwamandla aphezulu kwe-broadband kunye nokuphazamiseka kwe-EMI electromagnetic kwimo ye-TTL level, kwaye yimo yokudlulisa isignali yevidiyo yedijithali. I-interface ye-LVDS output isebenzisa i-voltage swing ephantsi kakhulu (malunga ne-350mV) ukuhambisa idatha ngokwahlukileyo kwiintambo ezimbini ze-PCB okanye i-balance cables ezimbini. I-interface ye-LVDS idlulisela isignali kwi-PCB eyahlukileyo okanye i-balance cable ngesantya samakhulu ee-megbits ngomzuzwana. Ngenxa ye-voltage ephantsi kunye ne-low current drive mode, ineengenelo zengxolo ephantsi kunye nokusetyenziswa kwamandla aphantsi. Kwi-LCD color TV, umgca we-LVDS usebenzisa i-balance cable ikakhulu, yi-twisted pair line. I-LVDS interface circuit component LCD color TV okanye i-color display xa i-decoding yokuqala ye-input signals (ezifana neTV, i-AV, njl.njl.), ukuze ifumane i-RGB signal, inkqubo yayo yokucubungula ifana kakhulu ne-TV eqhelekileyo yombala, ize emva koko idlule kwi-RGB-LVDS conversion, i-output LVDS signal, ithunyelwe kwi-LCD screen. Ekubeni i-TFT kwi-LCD screen ibona kuphela i-TTL (RGB) signal, i-LVDS ethunyelwe kwi-LCD screen kufuneka i-decoding i-TTL signal. Kuyabonakala ukuba i-LVDS interface circuit ibandakanya amacandelo amabini: i-LVDS output interface circuit kwicala le-motherboard (LVDS transmitter), kunye ne-LVDS input interface circuit (LVDS receiver) kwicala le-LCD panel. I-LVDS transmitter terminal iguqula i-TTL signal ibe yi-LVDS signal, ize idlulisele i-LVDS decoding IC kwicala le-LCD panel ngentambo yomgca okanye intambo eguquguqukayo phakathi kwe-drive panel kunye ne-LCD panel), iguqula i-serial signal ibe yi-parallel signal ye-TTL level, ize ithumele kwi-LCD timing control and ranks drive circuit.