Intangiriro y'umurongo wa LVDS wa ecran ya TFT-LCD LCD

Ibisobanuro bya Interineti ya LVDS

Ibisobanuro bya LVDS bivuga imikorere ya pin y'inyuzamo ya LVDS ku ruhande rwa LCD panel, muri rusange ishobora kwigwa binyuze mu kureba amakuru y'umwimerere y'uruganda rwa LCD ecran (ikunze kwitwa igitabo cy'ibisobanuro bya ecran). Nubwo amahame atandukanye y'icyongereza y'imikorere ya LCD ecran ecran atandukanye, Ariko ntabwo bigoye kubibona, ukurikije uko inyuguti n'imibare byayo bikurikirana, Urugero, ecran ya LCD ya CLAA170EA02, Reba imbonerahamwe y'ibisobanuro bya interface yatanzwe n'uwakoze, Nkuko bigaragara mu nkingi ngufi mu Cyongereza, Hamwe na RXO na RXE, Buri muyoboro ufite umubare "0″ ~ "3″ ikimenyetso cy'amakuru y'itsinda, Kandi ufite seti 1 y'ibimenyetso by'isaha (RXOC cyangwa RXEC), Ibi bigaragaza ko ecran ya LCD ari ecran ya 30-pin, ebyiri, ya 8-bit, Ntabwo bigoye kandi kubona imikorere yayo ya pin, Ni ukuvuga ko "RXO0-" ihagarariye seti ya mbere y'amakuru 1-, "RXO0 +" bivuze seti ya mbere y'amakuru: 1 +; “RXE0-” yerekana itsinda rya kabiri ry’amakuru 1-, “RXE0 +” igaragaza itsinda rya kabiri ry’amakuru 1+, Ibisigaye, n'ibindi. Uburyo bwa LVDS bukoreshwa. LVDS ni ijambo rigufi ry’Icyongereza "Low Voltage Differential Signaling" risobanura ikimenyetso cy’itandukaniro ry’umuvuduko muto. LVDS irenga ingaruka zo kohereza ingufu nyinshi za interineti n’ihungabana rya EMI electromagnetic muri TTL level mode, kandi ni uburyo bwo kohereza ibimenyetso bya videwo by’ikoranabuhanga. Uburyo bwa LVDS bukoresha voltage swing nke cyane (hafi 350mV) kugira ngo bwohereze amakuru mu buryo butandukanye ku nsinga ebyiri za PCB cyangwa insinga ebyiri zo kuringaniza. Uburyo bwa LVDS bwohereza ikimenyetso kuri PCB cyangwa insinga yo kuringaniza ku gipimo cya megbit amagana ku isegonda. Bitewe n’uburyo bwa voltage nke n’uburyo bwa drive current low, ifite ibyiza byo kuba urusaku ruto n’ikoreshwa ry’imbaraga nke. Muri LCD color TV, umurongo wa LVDS ukoresha cyane cyane insinga yo kuringaniza, mu by’ukuri ni umurongo wa kabiri uhindagurika. Televiziyo y'amabara ya LCD cyangwa iy'amabara ku isuzuma rya mbere ry'ibimenyetso byinjiye (nka televiziyo, AV, nibindi), kugira ngo haboneke ikimenyetso cya RGB, uburyo bwo kuyitunganya bungana na televiziyo isanzwe y'amabara, hanyuma binyuze mu guhindura RGB-LVDS, ikimenyetso cya LVDS cyoherezwa kuri ecran ya LCD. Kubera ko TFT muri ecran ya LCD yemera gusa ikimenyetso cya TTL (RGB), LVDS yoherejwe kuri ecran ya LCD igomba gusesengura ikimenyetso cya TTL. Biragaragara ko uruziga rwa LVDS rugizwe n'ibice bibiri: uruziga rwa LVDS rwoherezwa ku ruhande rwa motherboard (LVDS transmitter), na LVDS input interface circuit (LVDS receiver) ku ruhande rwa LCD panel. Electron yohereza LVDS ihindura ikimenyetso cya TTL mu kimenyetso cya LVDS, hanyuma yohereza ikimenyetso kuri LVDS decoding IC ku ruhande rwa LCD panel binyuze mu mugozi w'umurongo cyangwa umugozi woroshye hagati ya drive panel na LCD panel), igahindura ikimenyetso cy'uruhererekane mu kimenyetso gihuye cy'urwego rwa TTL, hanyuma ikacyohereza kuri LCD time control and ranks drive circuit.