Peb tau paub ntev los lawm tias muaj peb hom teeb meem: khoom, kua thiab roj.Qhov nruab nrab ntawm cov kua molecules yog cov txheej txheem tsis tu ncua, tab sis yog tias cov molecules ntev (los yog tiaj tus), lawv cov kev taw qhia yuav ua tau li niaj zaus. .Peb tuaj yeem faib cov kua hauv lub xeev mus rau ntau hom.Cov kua uas tsis muaj kev taw qhia yog hu ua kua ncaj qha, thaum cov kua nrog cov kev taw qhia yog hu ua kua siv lead ua kua, los yog kua siv lead ua kua rau luv luv.Cov khoom siv lead ua kua tsis txawv rau peb, peb cov khoom siv mobile. Cov xov tooj, lub tshuab xam zauv yog cov khoom siv ua kua siv lead ua kua. Cov kua siv lead ua kua, uas tau tshawb pom nyob rau xyoo 1888 los ntawm Austrian botanist Reinitzer, yog cov organic tebchaw uas muaj cov txheej txheem molecular tsis tu ncua ntawm cov khib nyiab thiab cov kua dej.Feem ntau siv cov kua siv lead ua kua morphology ntawm nematic kua siv lead ua, cov duab molecular. rau qhov ntev bar, dav li ntawm 1 nm mus rau 10 nm, nyob rau hauv txawv tam sim no hluav taws xob teb, cov kua siv lead ua kua molecules yuav npaj cov kev cai tig 90 degrees, producing qhov sib txawv ntawm lub teeb transmittance, yog li lub hwj chim ON / OFF nyob rau hauv qhov sib txawv ntawm lub teeb thiab ntxoov ntxoo, txhua pixel raws li lub hauv paus ntsiab lus ntawm kev tswj, tuaj yeem tsim cov duab.
Lub hauv paus ntsiab lus ntawm cov kua siv lead ua kua yog cov kua siv lead ua kua nyob rau hauv qhov kev txiav txim ntawm qhov sib txawv voltage yuav yog lub teeb ntawm cov yam ntxwv sib txawv tam sim no.LCD hauv physics muab faib ua ob pawg, ib qho yog Passive Passive (tseem hu ua Passive), thiab hom LCD no nws tus kheej tsis ci, xav tau lub teeb pom kev sab nraud, raws li txoj haujlwm ntawm lub teeb ci, thiab tuaj yeem muab faib ua kev xav thiab kis tau tus mob ob hom.Passive LCD nrog tus nqi qis, tab sis qhov ci ntsa iab thiab qhov sib piv tsis yog loj, tab sis lub kaum sab xis zoo me me, tsawg dua Passive LCD xim saturation ntawm cov xim, yog li xim tsis ci txaus.Lwm hom yog lub zog hluav taws xob, feem ntau TFT (Thin FilmTransitor).Txhua LCD yog qhov tseeb transistor yuav ci, yog li nruj me ntsis hais lus tsis yog LCD.LCD npo yog tsim los ntawm ntau LCD kab array, nyob rau hauv monochrome LCD zaub, ib tug kua siv lead ua yog ib pixel, whereas nyob rau hauv cov xim kua siv lead ua zaub txhua pixel muaj liab, ntsuab thiab xiav peb LCD ua ke.Nyob rau tib lub sijhawm tuaj yeem xav tias tom qab txhua lub LCD 8-ntsis sau npe, cov nqi sau npe txiav txim siab qhov ci ntawm peb lub LCD vaj huam sib luag, tab sis tus nqi ntawm cov npe tsis ncaj qha tsav qhov ci ntawm peb cov kua siv lead ua kua cell, tab sis. los ntawm "palette" mus xyuas.Nws tsis yog qhov tseeb kom muaj lub cev sau npe rau txhua pixel.Qhov tseeb, tsuas yog ib kab ntawm cov npe tau nruab, uas txuas nrog txhua kab ntawm pixels tig thiab thauj cov ntsiab lus ntawm kab ntawd.
Cov kua muaj kua zoo saib thiab zoo li cov kua, tab sis lawv cov qauv crystalline molecular coj zoo li cov khoom zoo li cov hlau hauv cov hlau nplaum, thaum raug rau sab nraud hluav taws xob, cov molecules tsim cov txheej txheem meej; Yog tias cov txheej txheem ntawm cov molecules raug tswj kom zoo. , cov kua siv lead ua kua molecules yuav tso cai rau lub teeb kom dhau mus; Txoj kev ntawm lub teeb los ntawm cov kua siv lead ua kua tuaj yeem txiav txim siab los ntawm kev teeb tsa ntawm cov molecules uas ua rau nws, lwm tus yam ntxwv ntawm cov khib nyiab. Cov kua nplaum yog cov organic sib txuas ua los ntawm cov pas nrig ntev- zoo li molecules.Nyob rau hauv qhov xwm txheej, cov axes ntev ntawm cov pas nrig zoo li cov molecules yog kwv yees li sib npaug.Liquid Crystal Display (LCD) ua ntej nta Cov kua muaju uas yuav tsum tau muab nchuav ntawm ob lub dav hlau uas muaj kab nrog cov slots ua haujlwm kom zoo.Qhov ntawm ob lub dav hlau yog perpendicular rau ib leeg (90 degrees), uas yog, yog hais tias lub molecules ntawm ib lub dav hlau yog raws li nyob rau hauv sab qaum teb-sab qab teb, lub molecules nyob rau hauv lwm lub dav hlau yog ua raws li sab hnub tuaj-sab hnub poob, thiab cov molecules ntawm lubOb lub dav hlau raug yuam mus rau hauv 90-degree twist.Vim tias lub teeb mus rau hauv cov kev taw qhia ntawm cov molecules, nws kuj yog twisted los ntawm 90 degrees raws li nws dhau los ntawm cov kua siv lead ua kua.Tab sis thaum ib tug voltage yog siv rau cov kua siv lead ua, cov molecules rearrange. vertically, tso cai rau lub teeb ntws ncaj qha tsis muaj qhov sib tw.Ib qhov thib ob ntawm LCDS yog tias lawv tso siab rau cov lim dej polarizing thiab lub teeb nws tus kheej.Ntuj lub teeb diverges randomly nyob rau hauv tag nrho cov kev taw qhia.Cov kab no tsim ib tug net uas thaiv tag nrho cov teeb uas tsis parallel rau cov kab no.Cov kab lim polarized yog perpendicular rau thawj tus, yog li nws tag nrho thaiv lub teeb polarized.Tsuas yog tias cov kab ntawm ob lub lim dej yog tib yam nkaus, lossis yog lub teeb nws tus kheej tau twisted kom phim lub lim dej thib ob, lub teeb tuaj yeem nkag mus. .LCDS yog tsim los ntawm ob lub vertically polarized lim, yog li lawv yuav tsum nquag thaiv txhua lub teeb sim nkag mus.Txawm li cas los xij, vim tias ob lub lim dej tau ntim nrog cov kua dej sib tw, tom qab lub teeb dhau los ntawm thawj lim, nws yog 90 degrees. los ntawm cov kua siv lead ua kua molecules, thiab thaum kawg dhau los ntawm lub lim thib ob.Yog hais tias, ntawm qhov tod tes, ib qho hluav taws xob tau siv rau cov kua siv lead ua kua, cov molecules yuav rov kho lawv tus kheej hauv txoj kev uas lub teeb yuav tsis raug twist, yog li nws yuav raug thaiv los ntawm ob lim.Synaptics TDDI, piv txwv li, integrates kov controllers thiab tso saib drives rau hauv ib nti, txo tus naj npawb ntawm cov Cheebtsam thiab simplifying tus tsim.Lub ClearPad 4291txhawb nqa lub hybrid multipoint inline tsim uas yuav siv sij hawm kom zoo dua ntawm cov txheej txheem uas twb muaj lawm hauv cov kua siv lead ua kua (LCD), tshem tawm qhov kev xav tau ntawm cov khoom sib cais ntawm cov sensors.ClearPad 4191 siv nws ib kauj ruam ntxiv, siv cov electrodes uas twb muaj lawm hauv LCD, yog li ua tiav cov txheej txheem yooj yim dua. architecture.Ob qho kev daws teeb meem ua rau cov ntxaij vab tshaus thinner thiab qhia ci dua, pab txhim kho kev zoo nkauj tag nrho ntawm smartphone thiab ntsiav tshuaj designs.Rau qhov cuam tshuam TN (Twisted Nematic) kua siv lead ua kua, nws cov qauv muaj cov txheej txheem hauv qab no: lim polarized, iav, ob pawg ntawm kev sib nrig sib insulated thiab pob tshab electrodes, kua siv lead ua lub cev, electrode, iav, polarized lim thiab xav txog.
Post lub sij hawm: Jul-13-2019