Qhov sib txawv ntawm cov xim dub thiab dawb LCD thiab xim LCD saib yog dab tsi? LCD \ LCM

Xim kua xim dub thiab xim kua tshuaj dawb feem ntau siv TN (Twist Nematic) los sib zog ua kua dej nematic kua pleev. Nws txoj haujlwm ua haujlwm yog tias cov kua siv ua kua nematic yog cov ntsej muag ntawm ob iav daim hlau, thiab cov duab tshav duab (ITO) (indium tin oxide) thawj daim phiab ntawm lub khob. Rau kev siv ua ib qho electrode, ib txheej txheej PI (polyimide) tom qab ntawd coated rau ib khob nrog nyias zaj duab xis electrode kom cov kua siv lead ua raws mus raws li qhov kev taw qhia uas yog ib qho thiab zoo tib yam rau iav nto. Lub xeev ntuj ntawm cov kua siv lead ua kua muaj qhov sib tw ntawm 90 degree, thiab cov kua siv lead ua kua molecules yog tig los ntawm lub teb hluav taws xob, thiab cov khoom siv ua kua ntawm lub kua dej hloov nrog cov kev coj ntawm cov kua siv lead ua kua. Vim li ntawd, lub teeb taws polarized tig rov qab tom qab dhau los ntawm TN kua siv lead ua kua. Ntev npaum li qhov kom zoo yog xaiv kom qhov kev sib pauv ntawm qhov sib pauv polarized yog cia li hloov 90 degree, ob lub npoo polarizers siv tau kom lub teeb tsis dhau ntawm txhua. Qhov loj txaus voltage yuav ua rau cov kev coj ntawm cov kua Crystal mus tib seem rau cov kev taw qhia ntawm cov hluav taws xob, thiaj li hais tias kev coj ntawm lub teeb ntawm lub teeb tsis hloov, thiab lub teeb yuav kis tau los ntawm tus thib ob ncov qaumteb qabteb. Vim li ntawd, qhov kaj thiab qhov tsaus ntuj tswj tau. Cov kua xim siv ua xim siv feem ntau siv lub TFT (thin film transistor) nyias zaj duab xis transistor kua siv lead ua kua. Lub hauv paus ntsiab lus yog raws li nram no: txheej txheem ntawm silicon yog tso rau lub iav substrate, thiab ib tug transistor array yog tsim los ntawm kev xws li luam ntawv lithography. Pixels muaj nruab nrog ib lub semiconductor hloov uas nws cov txheej txheem ua nws zoo ib yam li cov kab ua ke loj. Cov kua siv lead ua kua ces muab nchuav ntawm ob daim iav. Vim txhua pixel tuaj yeem tswj tau los ntawm tus taw tes mem tes, txhua qhov ntawm kuj ywj siab thiab tswj tau tsis tu ncua. Cov qauv tsim no tsis yog pab txhim kho qhov kev ceev ceev ntawm lub tso tshuaj npo, tib lub sijhawm thiaj li tswj tau cov zaub grayscale, yog li cov TFT LCD xim muaj tseeb tiag, hu ua tseeb xim. TFT faib rau hauv polysilicon, amorphous silicon thiab monocrystalline silicon.