Tsev > Xov xwm > Ntsiab lus

Active Matrix Ua kua Crystal Display

May 05, 2017

Ib qho nquag ua haujlwm   kua teeb pom kev zoo (AMLCD) yog ib hom khoom vaj huam sib luag rau cov khoom siv , cov khoom siv hluav taws xob , cov tshuab computer , cov ntsiav tshuaj computers , ntsiav tshuaj computer , dav xim gamut thiab lub sijhawm teb.

Lub tswvyim ntawm cov xibfwb ua haujlwm ntawm matrix yog tau tsim los ntawm Bernard J. Lechner ntawm RCA Laboratories hauv xyoo 1968. Thawj qhov haujlwm AMLCD nrog thin-film transistors tau tsim los ntawm T Peter Brody thiab nws pab neeg ntawm Westinghouse Electric Corporation hauv xyoo 1973. Txawm li cas los, xyoo ntawm kev tshawb fawb ntxiv los ntawm lwm tus los tua cov khoom zoo.

Qhov feem ntau hom LCD muaj, dhau li ntawm cov hlauv taws xob thiab cov hlwb ntawm cov kua siv lead ua kua, ib daim duab ntawm thin-film transistors kom thin-film-transistor kua-crystal zaub . Cov cuab yeej no cia cov hluav taws xob hauv lub xeev ntawm txhua lub pixel ntawm cov zaub thaum tag nrho lwm cov pixels tshiab. Txoj kev no muaj ntau lub zog, pom meej tshaj ib tus pas nrig ntawm qhov loj tib yam. Ib qho kev qhia tseem ceeb rau cov lus qhia no yog lawv qhov kev pom-lub kaum ntse ntse.

Nyias-zaj duab xis transistors feem ntau yog siv rau kev tsim ib qho matrix kom tau ob lub ntsiab lus uas feem ntau sib hloov, txawm tias ib zaj yeeb yaj kiab-zaj duab xis transistor tsuas yog ib qho hauv ib qho matrix thiab qee tus txheej txheem-matrix tsim tau siv lwm yam khoom xws li diodes . Whereas ib tus pas ntsuas pom kev siv siv lub vas sab yooj yim los siv cov hluav taws xob rau cov kua nplaum nyob rau hauv cheeb tsam phiaj xwm, ib qho khoom siv ua kom pom thiab siv cov kev lag luam uas muaj peev xwm los tuav lub sijhawm rau ib lub sijhawm. Vim hais tias ntawm kev hloov ntawm transistors, tsuas yog qhov xav tau pixel tau txais ib qho nqi, thiab cov pixel ua raws li lub capacitor los tuav cov nqi kom txog thaum tom ntej refresh voj voog, kev txhim kho cov duab zoo dua ib tus pas nrig passive. Qhov no yog qhov tshwj xeeb ntawm tus qauv ntawm cov qauv coj mus kuaj .