Kusumwa kweLVDS interface yeTFT-LCD LCD screen

Tsanangudzo yeLVDS Interface

Tsanangudzo yeLVDS interface inoreva basa reLVDS input end interface pin riri padivi reLCD panel, iro rinogona kudzidzwa kuburikidza nekutarisa data rekutanga refekitari reLCD screen (rinowanzonzi bhuku rezviratidziro zvechidzitiro). Kunyangwe zviyero zvakasiyana zveChirungu zveLCD screen interface function zvakasiyana, Asi hazvisi zvakaoma kuona izvozvo, tichitarisa nekurongeka kwemabhii ayo makuru nenhamba, Semuenzaniso, imwe CLAA170EA02 modhi LCD screen, Tarisa tafura yekutsanangurwa kweinterface yakapihwa nemugadziri, Sezvinogona kuonekwa kubva mukoramu pfupi muChirungu, NeRXO neRXE, Chiteshi chimwe nechimwe chine nhamba "0″ ~ "3″ group data signal, Uye ine seti imwe yemasaini eachi (RXOC kana RXEC), Izvi zvinoratidza kuti LCD screen i30-pin, dual, 8-bit screen, Hazvina kuomawo kuona basa rayo repin, Kureva kuti, "RXO0-" inomiririra seti yekutanga yedata 1-, "RXO0 +" zvinoreva seti yekutanga yedata: 1+; "RXE0-" inoratidza seti yechipiri yedata 1-, "RXE0 +" inoratidza seti yechipiri yedata 1+, Zvimwe, nezvimwewo. LVDS interface ine LVDS ipfupiso yeChirungu "Low Voltage Differential Signaling" zvinoreva chiratidzo che "low-pressure differential signal". LVDS inokunda zvakaipira zvekutumira broadband high power consumption uye EMI electromagnetic interference muTTL level mode, uye idigital video signal transmission mode. LVDS output interface inoshandisa voltage swing yakaderera (inenge 350mV) kutumira data nemusiyano pawaya mbiri dzePCB kana pawiri yemabhatani. LVDS interface inotumira chiratidzo paPCB differential kana balance cable pachiyero chemazana emegbits pasekondi. Nekuda kwevoltage yakaderera uye low current drive mode, ine zvakanakira zveruzha rushoma uye low power consumption. MuLCD color TV, LVDS line inonyanya kushandisa balance cable, i twisted pair line chaiyo. Chidimbu cheLVDS interface circuit chikamu cheLCD color TV kana chiratidziro chemavara pakutanga kwekunyora masaini ekupinda (akadai seTV, AV, nezvimwewo), kuti chiwane chiratidzo cheRGB, maitiro acho ekugadzirisa akafanana neTV yemavara yakajairika, uye kuburikidza nekushandurwa kweRGB-LVDS, chiratidzo cheLVDS chinobuda, chinotumirwa kuLCD screen. Sezvo TFT iri muLCD screen ichingoziva chiratidzo cheTTL (RGB), LVDS inotumirwa kuLCD screen inofanirwa kugadzirisa chiratidzo cheTTL. Zvinogona kuonekwa kuti LVDS interface circuit inosanganisira zvikamu zviviri: LVDS output interface circuit iri kudivi remotherboard (LVDS transmitter), uye LVDS input interface circuit (LVDS receiver) iri kudivi reLCD panel. LVDS transmitting terminal inoshandura chiratidzo cheTTL kuita chiratidzo cheLVDS, uye yozotumira chiratidzo kuLVDS decoding IC kudivi reLCD panel kuburikidza netambo yemutsara kana tambo inochinjika pakati pepanel yedhiraivha neLCD panel), ichishandura chiratidzo cheserial kuita chiratidzo chakafanana cheTTL level, uye yozochitumira kuLCD timing control uye ranks drive circuit.