TFT LCD cov ntxaij vab tshaus yog ib qho ntawm cov cuab yeej siv dav siv hauv cov khoom siv hluav taws xob tam sim no.Nws ua tiav cov duab zoo tshaj plaws los ntawm kev ntxiv cov yeeb yaj kiab nyias nyias (TFT) rau txhua pixel.Hauv kev ua lag luam, muaj ntau hom TFT LCD cov ntxaij vab tshaus, txhua tus muaj nws tus kheej cov yam ntxwv thiab qhov zoo.Tsab ntawv xov xwm no yuav qhia txog VA hom, MVA hom, PVA hom, IPS hom thiab TN hom LCD npo, thiab piav qhia lawv qhov tsis sib xws.
VA hom (Vertical Alignment) yog ib hom TFT LCD npo tshuab.Hom kev tshuaj ntsuam no siv cov kua siv lead ua kua molecular qauv txheej txheem vertically, thiab cov degree ntawm lub teeb kis tau tus mob yog tswj los ntawm kev kho cov orientation ntawm cov kua siv lead ua kua molecules.VA cov ntxaij vab tshaus muaj qhov sib txawv thiab xim saturation, muaj peev xwm ntawm cov xim dub thiab cov xim tseeb.Tsis tas li ntawd, VA screen kuj muaj lub kaum sab xis pom loj, uas tseem tuaj yeem tswj tau qhov sib xws ntawm cov duab zoo thaum saib los ntawm ntau lub kaum ntse ntse.16.7M xim (8 ntsis vaj huam sib luag) thiab lub kaum sab xis pom loj yog nws cov yam ntxwv tshwj xeeb tshaj plaws.Tam sim no VA-hom vaj huam sib luag tau muab faib ua ob hom: MVA thiab PVA.
Hom MVA (Multi-domain Vertical Alignment) yog ib qho kev txhim kho ntawm VA hom.Cov qauv tshuaj ntsuam no ua tiav cov duab zoo dua thiab lub sijhawm teb sai dua los ntawm kev ntxiv cov electrodes ntxiv rau pixels.Nws siv protrusions los ua cov kua siv lead ua kua tsis yog cov tsoos ntau dua thaum nws tseem, tab sis nws zoo li qub ntawm ib lub kaum ntse ntse;Thaum ib qho hluav taws xob siv rau nws, cov kua siv lead ua kua molecules tuaj yeem hloov pauv mus rau hauv lub xeev kab rov tav kom tso cai rau lub teeb rov qab los ntawm kev yooj yim dua.Qhov ceev ceev tuaj yeem ua rau lub sijhawm ua kom luv, thiab vim tias qhov kev hloov pauv no hloov cov kev sib raug zoo ntawm cov kua siv lead ua kua molecules, kom pom lub kaum sab xis dav dua.Qhov nce ntawm qhov pom lub kaum ntse ntse tuaj yeem ncav cuag ntau dua 160 °, thiab lub sijhawm teb tuaj yeem ua kom luv luv kom tsawg dua 20ms.Lub vijtsam MVA muaj qhov sib txawv ntau dua, pom lub kaum sab xis dav dua thiab nrawm dua pixel hloov ceev.Tsis tas li ntawd, lub vijtsam MVA tseem tuaj yeem txo cov xim hloov thiab cov lus tsa suab plooj, muab cov duab pom tseeb dua thiab pom tseeb dua.
PVA hom (Patterned Vertical Alignment) yog lwm qhov kev txhim kho ntawm VA hom.Qhov no yog ib hom vaj huam sib luag launched los ntawm Samsung, uas yog ib tug ntsug duab kho tshuab.Cov thev naus laus zis no tuaj yeem hloov pauv cov qauv hauv lub xeev ntawm nws cov kua siv lead ua kua, kom cov nyhuv tso saib tuaj yeem txhim kho tau zoo, thiab qhov ci ntsa iab thiab qhov sib piv yuav zoo dua li MVA..Tsis tas li ntawd, nyob rau hauv lub hauv paus ntawm ob hom no, kev txhim kho hom tau txuas ntxiv: S-PVA thiab P-MVA yog ob hom vaj huam sib luag, uas muaj kev sib tw ntau dua hauv kev tsim cov thev naus laus zis.Lub kaum sab xis saib tuaj yeem ncav cuag 170 degrees, thiab lub sijhawm teb Nws kuj tseem tswj tau li ntawm 20 milliseconds (overdrive acceleration tuaj yeem ncav cuag 8ms GTG), thiab qhov sib piv tau yooj yim tshaj 700: 1.Nws yog cov cuab yeej siv qib siab uas txo cov teeb pom kev thiab tawg los ntawm kev ntxiv cov qauv zoo nkauj rau cov kua siv lead ua kua txheej.Qhov kev tshuaj ntsuam no tuaj yeem muab qhov sib piv ntau dua, pom lub kaum sab xis dav dua thiab ua haujlwm zoo dua xim.PVA cov ntxaij vab tshaus yog tsim rau cov xwm txheej uas xav tau qhov sib txawv thiab cov xim zoo nkauj, xws li kev ua duab thiab kev ua yeeb yam.
IPS hom (In-Plane Switching) yog lwm hom TFT LCD npo tshuab.Tsis zoo li VA hom, cov kua siv lead ua kua molecules hauv IPS npo tau ua raws li cov kab rov tav, ua kom yooj yim rau lub teeb kom dhau los ntawm cov kua siv lead ua kua.Lub tshuab tshuaj ntsuam no tuaj yeem muab ntau yam kev pom cov kaum sab xis, muab cov xim muaj tseeb dua thiab muaj qhov ci dua.IPS cov ntxaij vab tshaus tsim nyog rau cov ntawv thov uas xav tau cov duab dav dav thiab cov xim tiag tiag, xws li cov khoom siv xws li ntsiav tshuaj thiab xov tooj ntawm tes.
TN hom (Twisted Nematic) yog qhov zoo tshaj plaws thiab pheej yig TFT LCD npo tshuab.Hom kev tshuaj ntsuam no muaj cov qauv yooj yim thiab cov nqi tsim khoom tsawg, yog li nws tau siv dav hauv ntau daim ntawv thov.Txawm li cas los xij, TN cov ntxaij vab tshaus muaj qhov nqaim ntawm qhov pom cov ces kaum thiab cov xim tsis zoo.Nws yog qhov tsim nyog rau qee qhov kev siv uas tsis xav tau cov duab zoo, xws li lub computer saib thiab video games.
Ntxiv rau qhov kev taw qhia ntawm hom TFT LCD saum toj no, lawv cov kev txwv yuav raug piav qhia hauv qab no.
Thawj yog qhov sib piv (Contrast Ratio).Qhov sib piv piv yog qhov ntsuas ntawm lub peev xwm ntawm cov cuab yeej tso saib kom sib txawv ntawm cov xim dub thiab dawb.Qhov sib txawv siab txhais tau hais tias lub vijtsam tuaj yeem pom qhov sib txawv ntawm cov xim dub thiab dawb.VA, MVA, thiab PVA hom LCD cov ntxaij vab tshaus feem ntau muaj qhov sib piv ntau dua, uas muab cov duab nthuav dav dua thiab cov xim zoo li qub.
Tom qab ntawd saib lub kaum sab xis (Saib lub kaum sab xis).Saib lub kaum sab xis yog hais txog ntau lub kaum sab xis nyob rau hauv uas cov duab zoo ib yam tuaj yeem tswj tau thaum saib lub vijtsam.IPS, VA, MVA, thiab PVA hom LCD cov ntxaij vab tshaus feem ntau muaj ntau yam kev pom cov ces kaum, tso cai rau cov neeg siv txaus siab rau cov duab zoo thaum saib los ntawm ntau lub kaum ntse ntse.
Lwm qhov parameter yog lub sijhawm teb (Lub Sijhawm Teb).Lub sijhawm teb yog hais txog lub sijhawm xav tau rau cov kua siv lead ua kua molecules hloov ntawm ib lub xeev mus rau lwm qhov.Lub sij hawm teb ceev dua txhais tau hais tias lub vijtsam tuaj yeem ua kom pom cov duab nrawm dua, txo cov suab nrov plooj.MVA thiab PVA hom LCD cov ntxaij vab tshaus feem ntau muaj lub sijhawm teb sai dua thiab tsim nyog rau cov xwm txheej uas xav tau cov duab zoo nkauj.
Qhov kawg yog xim kev ua haujlwm (Color Gamut).Xim kev ua tau zoo yog hais txog ntau yam xim uas cov khoom siv tuaj yeem ua tau.IPS thiab PVA hom ntawm cov ntxaij vab tshaus LCD feem ntau muaj ntau yam xim kev ua tau zoo thiab tuaj yeem nthuav tawm cov xim tiag tiag thiab tiag tiag.
Yuav kom suav tau, muaj ntau hom TFT LCD cov ntxaij vab tshaus hauv kev ua lag luam, thiab txhua hom muaj nws tus yam ntxwv tshwj xeeb thiab qhov zoo.VA hom, MVA hom, PVA hom, IPS hom, thiab TN hom LCD cov ntxaij vab tshaus txawv ntawm qhov sib txawv, saib lub kaum ntse ntse, lub sijhawm teb, thiab kev ua haujlwm xim.Thaum xaiv lub vijtsam LCD, cov neeg siv yuav tsum xaiv hom tsim nyog tshaj plaws raws li lawv cov kev xav tau thiab peev nyiaj.Txawm hais tias rau cov ntawv thov kev tshaj lij lossis kev siv txhua hnub, TFT LCD npo tshuab tuaj yeem muab cov duab zoo thiab pom kev.
Post lub sij hawm: Aug-24-2023