Tsev > Exhibition > Ntsiab lus

Cov ncauj lus kom ntxaws txog LCD Technology

Jul 03, 2018

Cov ncauj lus kom ntxaws txog LCD Technology


Txog kua Crystal
Khoom muaj peb hom: khoom hauv lub xeev, kua hauv lub xeev thiab lub xeev loj.
Xyoo 1888, Australian botanist Leni FM (Reinitzer) tau kawm txog cov roj cholesterol nyob hauv cov nroj tsuag, siv cov cholenyl benzene los kuaj, cov kua tsis pom los ntawm cov kua ntxhiab tsw, tab sis qhov siv cov kua nplaum ua tsis tau pib txog 1950s. Raws li lub npe qhia, cov kua nplaum ua kua dej yog nruab nrab ntawm cov xeev thiab kua kas. Ua kua dej ua kua yog ib qho organic. Hauv ib qho kev ntsuas ntawm qhov kub thiab txias, nws tsis tsuas muaj cov khoom sib xyaws ntawm cov dej ua kua, viscosity thiab deformation, tab sis kuj muaj lub cev xws li thermal (thermal nyhuv), teeb (optical anisotropy), hluav taws xob (electro-optic nyhuv) sib nqus (magnetic-optical nyhuv) thiab yog li ntawd. Txoj kev ntawm lub teeb kis tau los ntawm cov kua siv lead ua tau txiav txim siab los ntawm kev tsim kho lub cev ntawm lub teeb. Nws pom tau tias them lub kua dej ua kua hloov yuav hloov nws txoj kev hloov molecular thiab tom qab ntawd ua rau lub distortion los yog lub zog ntawm lub teeb.
Raws li qhov txawv ntawm molecular structure, kua siv lead ua kua dej ua ke faib ua peb hom: Crystal particles clay xws li cov crystalline theem (Smectic) kua siv ua kua, zoo ib yam li nplua match lo hu ua nematic (Nematic) kua siv lead ua, zoo li roj (cholesterol) zoo li cholesteric theem (Choleston ) kua siv lead ua kua. Lub cev nqaij daim tawv ntawm cov khoom siv peb hom kua muaj sib txawv. Rau cov kua siv lead ua kua, muaj ob hom nematic (Nematic) cov kua muaj kua.
Tus qauv ntawm LCD
Tsuas yog to taub nws cov qauv thiab cov hauv paus ntsiab lus, thiab nkag siab txog nws cov txuj ci thiab cov nta, nws tuaj yeem tsim thiab tsim nyog thaum nws thov thiab tswj xyuas. Cov dej siv lead ua kua yog ib qho chaw organic uas muaj cov pas nrig ntev xws li cov pa taws. Nyob rau hauv natural conditions, qhov ntev axis ntawm no qwj molecules yog kwv yees li parallel. Thawj tus cwj pwm ntawm LCD yog tias kua crystals yuav tsum tau muab nchuav ua ob kab ntawm dav hlau nrog me me grooves ua hauj lwm kom zoo. Lub grooves ntawm ob lub dav hlau yog sib tshuav rau ib leeg twg (90 degrees tshuam), yog tias, yog tias cov lwg me me rau ntawm ib lub dav hlau nyob rau sab qaum teb sab nraud, cov molecules nyob rau lwm lub dav hlau tau npaj, thiab cov molecules ntawm ob dav hlau yog yuam rau hauv lub xeev ntawm 90 degree torsion. Raws li lub teeb tsiv raws li cov kev taw qhia ntawm cov molecules, lub teeb kis tau los ntawm cov kua siv lead ua kua thiab muab 90 degrees. Tab sis thaum muaj qhov voltage ntxiv rau cov kua siv lead ua kua, cov molecules yuav rov kho kom yooj yim kom lub teeb yuav mus ncaj tsis muaj kev sib ntswg. Qhov thib ob feature ntawm LCD yog tias nws relies on polarizing lim thiab lub teeb nws tus kheej. Lub teeb ci ntsa iab yog khoob ntawm cov lus qhia. Lub thawv polarized yog ua ib kab ntawm cov kab xev thinner thiab thinner. Cov kab no ua ib qhov net uas thaiv tag nrho cov teeb uas tsis sib npaug rau cov kab, thiab cov kab ntawm lub tshuab ua kom lub thawv polarizing yog mus rau thawj, kom lub teeb ntsuab tuaj yeem cuam tshuam tag nrho. Tsuas yog cov kab ob ntawm cov ntxaij lim dej nkaus xwb, los yog lub teeb nws tus kheej tau ua kom sib haum ua kom pom cov ntxim saib ntxim ua ntxim ua polarization thib ob, kom lub teeb yuav nkag mus. LCD yog ua los ntawm ob qho tib si sib txawv ntawm cov duab polarized, yog li nyob rau hauv ib txwm muaj tshwm sim, tag nrho cov kev sim mus rau hauv lub teeb yuav tsum tau blocked. Txawm li cas los xij, txij li ob qho ntxaij lim dej uas muaj cov kua nplaum ua kua, cov kua siv lead ua kua molecules yog sib qis los ntawm 90 degrees tom qab lub hnab lim hnav, thiab thaum kawg los ntawm ob qho ntxaij lim dej. Ntawm qhov tod tes, yog tias qhov voltage ntxiv rau cov kua siv lead ua kua, cov molecules rearranged thiab tag nrho cov sib npaug, kom lub teeb tsis yog torsional, ces nws cia li thaiv los ntawm cov ntxaij lim dej thib ob. Hauv ntej, lub hwj chim yog siv los thaiv lub teeb, thiab lub teeb tawm tsis muaj hluav taws xob. Tau kawg, nws tuaj yeem hloov cov kua siv ua kom zoo hauv LCD, yog li ntawd lub teeb yuav tawm tau thaum nws muaj zog, thiab nws yuav thaiv tsis tau hluav taws xob. Tab sis vim hais tias lub vijtsam sab hauv yog ib txwm muaj nyob rau ntawm lub sab nrig, txoj kev uas tsuas yog txuag hluav taws xob yog los ntawm "thaiv lub teeb los ntawm kev ntxiv hluav taws xob".

Kev faib tawm ntawm LCD
LCD muaj peev xwm muab faib ua ob hom kev siv cuab yeej thiab cov tshuab ua ub ua no. Cov khoom siv sawv cev yog DSTN (ob txheej Plig Niv Xuav ob txheej ntxiv ua kua nematic kua siv lead ua) thiab TFT (nyias zaj duab xis transistor thin film transistor). DSTN yeej ib txwm yog cov qauv ntawm cov neeg sau cov ntawv ua ke, thiab HPA thiab CSTN yog cov kev txhim kho tshiab ntawm kev siv cuab yeej. HPA kuj paub zoo txog kev ua tau zoo los yog ceev DSTN. HPA thiab CSTN muab kev zoo sib xws thiab ci tshaj DSTN. Lub sij hawm cov tshuaj tiv thaiv ntawm CSTN tau tam sim no poob rau 100ms thiab muab qhov kev saib xyuas 140 degree.
DSTN yog tsim los ntawm super twisted nematic zaub (STN). Vim DSTN tau txais kev sib tw ob lub tshuab, qhov pom tau zoo tshaj qhov qub nrog STN. Cov lus qhia hauv lub computer tsuas yog tshwm sim thaum lawv siv cov kab mob STN xwb. Cov tshuaj tiv thaiv lub sij hawm STN yog qeeb qeeb, feem ntau nyob ib ncig ntawm 300ms, thiab cov neeg siv tau hnov cov khoom tom qab (tom qab). Raws li DSTN muab faib ua ob qhov ntxaij nyob rau tib lub sij hawm, nws yog ib qho ua tau kom pom ib txoj kab ci nyob hauv nruab nrab ntawm cov khoom.
Active matrix zaub yog ncaj qha mus txog los ntawm nyias zaj duab xis transistors, uas yog lub hauv paus ntawm lub npe technology, uas yog, TFT (nyias zaj duab xis transistor). TFT yog ib qho ntawm cov khoom siv roj ntsha ua kua dej. Lub sij hawm tshwm sim tau zoo heev thiab tau mus txog 25ms. Nws muaj ntau qhov sib txawv thiab muaj xim ntau dua. Txheeb rau DSTN, lub ntsiab feature ntawm TFT yog tias txhua tus pixel yog nruab nrog lub tshuab hluav taws xob txuas nrog lub semiconductor, uas zoo ib yam li cov nplai loj ua ke. Vim tias 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. Qhov no tsis tsuas yog txhim kho lub sij hawm teb, tab sis kuj yog qhov tseeb ntawm kev tswj ntawm grey, uas yog vim li cas vim lub TFT xim zoo tshaj qhov DSTN. Tam sim no, cov khoom siv feem ntau ntawm cov tshuab computer feem lag luam siv tshuab TFT zaub.
Cov sib piv ntawm LCD thiab CRT (tsom saib xyuas) thiab cov teeb meem xav tau xim thaum muag
Peb tau qhia txoj haujlwm ntawm LCD, yog li cia peb qhia CRT dua, ces peb sib piv nws zoo. Lub hauv paus ntsiab lus ntawm CRT yog tias qhov fais fab fais fab yog ua los ntawm lub ntsiab lus, lub cathode thiab kev tswj kab sib chaws. Lub ntsiab lus yog rhuab, lub cathode zoo siab thiab qhov hluav taws xob nquag yog tawm. Cov hluav taws xob khiav ceev yog ceev los ntawm txheej hlau txheej nrog high voltage. Cov nqaj hlau electron yog tsom los ntawm lub lens tsim lub nqaj hlau electronics zoo heev, thiab nws yog ntaus ntawm qhov screen kom phosphor luminescent. Lub tuam kab hluav taws xob tswj tau tswj tau qhov kev qhia txog ntawm Fluorescent npo nyob rau hauv cov nyhuv ntawm cov hlau nplaum uas tsim los ntawm deflection coil. Tom qab lub tshuab hluav taws xob hauv hluav taws raug ntaus rau ntawm lub vijtsam, yuav tsum muaj tus taw tes luminescent, thiab qee cov ntsiab lus yuav tsim tau cov duab. RGB tri xim fluorescence point yog ntaus los ntawm cov nqaj hlau electron sib txawv. Nws yuav tsim ntau yam xim. Los ntawm kev tswj lub zog thiab kev puas tsoo ntawm cov nqaj hlau electron, ntau yam duab muaj peev xwm ua tau. Sab hauv ntawm tus duab ntxoov ntxoo daim npog raj muaj ib qho screen nrog ib qho screen xws li tshuaj ntsuam. Cov nqaj hlau hluav taws xob yog ntaus los ntawm cov mesh hauv voos hauv cov voj voos uas muaj qhov sib xyaw nrog peb sab, thiab peb lub tshuab hluav taws xob sib raug raws peb lub xim ntawm RGB, yog li nws yog hu ua "peb phom thiab peb kab". Lub hauv paus ntsiab lus ntawm lub qhov rooj ntxoov ntxoo (piv txwv li, qhov tshwj xeeb thiab lub pob zeb diamond) yog tib yam, tab sis qhov kev ntsuas ntawm no hom duab raj yog tsim nyob rau hauv lub thav duab ntawm ntau gratings.
Tom ntej no yog los qhia lawv cov kev sib txawv hauv kev nthuav dav.

Kev daws teeb meem
Kev daws teeb meem yog ib qho tseem ceeb rau kev ua haujlwm. Nws yog hais txog cov ntsiab lus uas tuaj yeem pom tias horizontally thiab vertically ntawm qhov screen (cov kab thiab qhov chaw uas tau tso tawm ntawm qhov screen tau ua los ntawm cov ntsiab lus), thiab ntau dua qhov kev daws teeb meem, cov lus qhia ntxiv uas tuaj yeem nyob hauv tib lub vijtsam . Rau ib lub CRT uas yuav pab tau 1280 x 1024 daws teeb meem, ob qho tib si 320x240 thiab 1280 x 1024 daws teeb meem tau ua tau zoo kawg nkaus (vim tias cov hlau hluav taws xob yuav raug kho rau kev ua kom zoo). Tab sis qhov kev daws teeb meem siab tshaj plaws tsis yog qhov kev txiav txim siab tshaj plaws, vim hais tias qhov 17 nti zaub nyob ntawm 1280 x 1024 daws teeb meem, qhov WINDOWS font yuav tsawg, thiab lub qhov muag ntev yog yooj yim qaug zog, yog li qhov daws teeb meem ntawm 17 nti yuav tsum yog 1024x768.
Tab sis tsis yog rau LCD. Lub siab tshaj plaws daws teeb meem ntawm LCD yog nws txoj kev daws teeb meem, uas yog, qhov kev daws teeb meem zoo tshaj plaws. Thaum qhov kev daws teeb meem tsawg dua qhov kev daws teeb meem (piv txwv li, 15 nti LCD, qhov tseeb daws teeb meem yog 1024x768, thiab qhov teeb meem yog 800 x 600 hauv WINDOWS), yuav muaj ob txoj hauv kev pom. Ib qho yog qhov chaw qhia tias tsuas 800x600 ntsiab lus nyob hauv nruab nrab ntawm lub LCD yuav tso saib cov duab, thiab lwm cov ntsiab lus uas tsis siv yuav tsis ci, khaws keeb kwm yav tsaus, thiab nws zoo li daim duab yog nqaim hauv nruab nrab . Qhov thib ob yog qhov tso duab ncua ntxiv, uas yuav siv txhua pixel ntawm qhov kev tshuaj ntsuam, tab sis vim cov pixels tau yooj yim distorted, nws yuav muaj tej yam yuav tshwm sim rau cov nyhuv. Li ntawd, nyob rau hauv txhua rooj plaub, thaum xaiv LCD, peb yuav tsum faj seeb rau qhov kev daws teeb meem tsis yog qhov loj zog zoo dua, tab sis qhov kev tsim nyog siv.
Kho tshiab
Rau CRT, daim duab duab ntawm qhov screen yog ua los ntawm ntau cov ntsiab lus fluorescence uas tau txhaj los ntawm electron beam. Vim tias cov hmoov fluorescent hauv lub raj yog ntaus los ntawm cov nqaj hlau electron, lub sij hawm luv heev, yog li ntawd cov hlau hluav taws xob yuav tsum niaj hnub ntaus phosphor kom nws tseem yuav ci ntsa iab. Thawj kab ntawm lub phom hluav taws xob los ntawm sab sauv ntawm sab laug ntawm lub vijtsam (cov naj npawb ntawm cov kab txiav txim siab los ntawm lub rooj teeb rooj ntawm lub sijhawm ntawd, xws li 800X600 kev daws teeb meem, cov phom hluav taws xob yuav luam 600 tawm kab), pib ntawm sab laug mus rau sab xis, tom qab thawj kab ntawm kev xa khoom thiab los ntawm sab laug kawg ntawm kab thib ob mus rau sab xis kawg ntawm kab thib ob, kom txog rau thaum kuaj tiav. Ib lub vijtsam pib nrog rau sab laug ntawm sab laug ntawm qhov screen, thiab tom qab ntawd ces ua tiav ntawm qhov screen tiav. Ua li no, peb tuaj yeem nkag siab tias vim li cas qhov kev daws teeb meem siab dua yog qhov qis, qhov txo qis qis dua yuav yog. Feem ntau hais lus, qhov kev hloov tshiab ntawm qhov screen yog ntau tshaj 75HZ, tib neeg lub qhov muag tsis yooj yim rau kev xav tias lub ntsej muag ntawm qhov screen. Lub cuab hloov tshiab ntawm CRT yog txiav txim siab los ntawm nws lub sijhawm thiab qhov kev daws teeb meem ntawm lub sijhawm ntawd. Cov kab ntau dua, qhov ntau dua qhov hloov tshiab ntawm qhov kev daws teeb meem qub; thiab qhov ntau dua qhov kev daws teeb meem yog, qhov ntau dua qhov kev daws teeb meem nws tuaj yeem ncav cuag. Qhov qis dua tus nqi. Rau LCD, tsis muaj qhov teeb meem ntawm kev ua kom rov ua dua tshiab. Nws tsis tas yuav kho kom tshiab dua. Vim tias txhua txhua tus pixel hauv lub LCD tseem tsis tso tawm lub teeb kom txog thaum tsis muaj qhov hloov siab hloov thiab xa mus rau tus maub los, LCD tsis muaj qhov scintillation los ntawm "nruam thiab paug".
qhov muag pom
Nyob ntawm tam sim no, feem ntau cov lus qhia txog kev qhia ncaj nraim yuav ncav cuag 180 degrees ntawm kev pom, uas yog hais tias, txhua txoj kev los ntawm sab xub thawj ntawm lub vijtsam tuaj yeem pom meej meej cov ntsiab lus tso tawm. Tab sis LCD nyias txawv nyias, nws lub qhov muag pom txawv raws li cov cuab yeej siv siab, qhov muag pom ntawm qee yam khoom tshiab tau mus txog 160, uas yog ze ze ntawm 180 degree ntawm CRT. Tseem muaj ib co LCD txawm hais tias lub nominal kaum sab xis pom yog 160 degrees, tab sis qhov tseeb nws tuaj yeem tsis ncav cuag tus txheej txheem no. Nyob hauv tus txheej txheem ntawm kev siv tus neeg siv, thaum lub kaum sab xis pom ntau tshaj qhov tseeb pom ntau yam, qhov xim ntawm qhov screen yuav ploj thiab tsaus ntuj, los yog txawm tshwm li ib cov duab tsis zoo. Nws muaj peev xwm hais tias txhua leej txhua tus puzzled los ntawm PHILPS cov advertising, tab sis LCD's perspective tsis loj heev, tab sis ntau dua li CRT, qhov chaw uas yog obviously weaker tshaj CRT, ces koj tsis muaj kev txhawj txog pom nws cov colleagues rau cov hlub ntawm ib tug me dais. Tau kawg, yog hais tias lub khw tsim cov cuab yeej los ntawm kev pom lub kaum ntse ntse, qhov teeb meem yuav zoo dua. Ntawm no yog cov lus qhia me me.

TN + Zaj duab xis (TN + saib saib zaj duab xis)
Hauv cov qauv, cov kua siv lead ua siv cov kua siv lead ua ua cov khoom siv. Cov dej ua kua yog ib yam khoom ntawm cov kua thiab cov kua, uas pib ua kom pom lub xeev cov dej tshav nyob hauv ib qho chaw sov, thiab ua rau cov huab cua uas muaj huab cua nrog cov cua crystalline tom qab txias. Raws li lub qauv molecular, cov kua siv lead ua kua dej ua ke muab faib ua peb yam: Cov Ntshiab xws li cov kua siv lead ua kua zoo li cov av nplaum, cov kua Crystal Nematic zoo xws li tus nplua phom, thiab cov cholesteryl li Cholestic kua Crystal. Lub cev nqaij daim tawv ntawm peb hom kua muaj kua dej tsis zoo li qub. Qhov thib ob hom Nematic kua muaju yog siv cov kua siv lead ua kua, thiab cov kua siv lead ua los ntawm hom kab ua kua no kuj hu ua LCD (Cov Kua Siv Crystal Display). Cov kua siv lead ua kua molecules nyob rau hauv txheej qis ntawm cov kua hluavtaws npuas tib lub npov los ntawm horizontally, thiab LC molecules nyob rau hauv qis txheej yog teem longitudinally, thaum cov kua siv lead ua kua molecules nyob nruab nrab ntawm cov theem qis thiab sab qis yog teem horizontally, thiab ze ze sab cov khaubncaws sab nraud povtseg muaj txheej txheem. Raws li ib qho tseem ceeb, nws zoo li hais tias kev kho ntawm cov kua siv lead ua kua molecules yog zoo li ib qhov kev sib xyaw, tab sis cov kua tshuaj pleev ua kua molecules ntawm LCD cov saib raws li TN + lub kaum sab xis pom yog saib rau ntawm cov vijtsam, sab nraud nto kom pom lub qhov muag pom. Tev kev hais lus, cov cuab yeej tsim yog tsim los ntawm qhov txuj ci zoo dua TFT-Twisted Nematic (cov khoom sib txig sib txuas) lub tshuab LCD. Ntev li ib zaj duab xis tshwj xeeb (kauj cov duab) nrog rau sab sauv ntawm lub substrate, txoj kab rov tav saib qhov tob yuav nce ntxiv ntawm 90 degrees txog 140 degrees. Qhov zoo ntawm cov cuab yeej siv yog qhov tseeb, uas yog, pheej yig thiab kuj siv technology, nrog siab yield. Txawm li cas los xij, qhov shortcomings ntawm cov cuab yeej siv kuj pom meej, uas yog, tsis muaj kev hloov ntawm cov kev tsis txaus siab ntawm kev sib txawv tsis zoo thiab qeeb teb.
IPS (intra board switching lossis Super-TFT) technology
IPS lossis "on board switching" technology yog thawj tsim los ntawm Hitachi (Hitachi). Tam sim no NEC thiab Nokia (NOKIA) kuj siv technology no los tsim TFT.
Ntsiab Cai:
Qhov sib txawv ntawm IPS thiab TN + Zaj Dab Tsi (Torsional nematic kua Crystal + qhov muag pom kev loj) yog tias cov kev coj ntawm cov kua siv lead ua kua dej yog sib luag rau cov substrate es tsis yog nyob rau hauv lub substrate. Qhov no yog tau los ntawm kev siv qhov hluav taws xob.
Siv IPS los yog Super TFT tshuab nthuav dav saib lub kaum sab xis mus rau 170 degree, yeej ua tiav tib lub kaum kev pom li CRT saib. Tab sis cov txheej txheem no kuj muaj shortcomings, vim hais tias qhov sib tw ntawm cov kua siv lead ua kua molecules ua rau sib txuas thiab muab tso rau hauv qab iav substrate, tiam sis tsis nyiam TN qauv (tsim TN LCD npo xws li iav substrate, ITO muaj ob lub tsho, hu ua nce thiab nqis. "Cov interlayer muaj cov electrodes thiab trenches uas tsim los ntawm cov zaj duab xis kom sib npaug, thiab kua siv lead ua kua molecules nyob rau sab saud thiab sab nrab, uas yog Muab piv txwv nrog TN + Zaj duab xis (TN + angle expanding membrane) technology, qhov sib txawv thiab lub sijhawm teb nyob rau hauv IPS hom tsis zoo npaum li cas nrog tsoos TFT-TN.

3 MVA (Multi-Domain Vertical Alignment, ntau thaj chaw ntsug kom zoo) technology
MVA tshuab yog tsim los ntawm Fujitsu Corporation. Los ntawm cov kev taw qhia kev pom, MVA yuav tsum yog txoj kev daws teeb meem zoo tshaj plaws rau kev saib dav dav thiab lub sijhawm luv ntawm LCD. Lub tshuab ua MVA ua kom pom lub qhov muag pom kom ncav cuag 160 degrees, thiab lub sij hawm teb yuav ncav cuag 20 xuaj moos. Hauv MVA tshuab, M stands rau "ntau tus sau". Nws yog hais txog qhov tsim ntawm ntau thaj chaw hauv ib chav tsev xim los ntawm qhov project khoom. VA yog "Vertical Alignment" (vertical arrangement). Vim yog txoj kev sib raug zoo ntawm lub nkoj, cov kua siv lead ua kua molecules tsis tag ntsug hauv lub xeev qub. Thaum lub qhov hluav taws xob tau siv los ua kom muaj hluav taws xob, lub kua siv lead ua kua molecules yog npaj ua ntej horizontally, kom lub teeb tawm ntawm lub teeb pom kev los ntawm ntau cov khaubncaws sab nraud povtseg. MVA tshuab tau luv luv sij hawm tshaj TN + saib nthuav dav membrane tshuab thiab IPS technology, nws yog qhov tseem ceeb heev rau kev yees duab thiab kev ua si. Muaj kev sib haum xeeb zoo, tab sis nws txawv nrog lub kaum sab xis pom.

TN + Zaj duab xis (TN + saib saib zaj duab xis)
Tsawg tus nqi, siab yield, pom qhov sib txawv 140 degrees, qhov sib txawv thiab lub sijhawm teb tsis zoo. IPS (sab hauv los sis Super-TFT) technology: qhov muag pom 170 degrees, qhov sib txawv thiab lub sijhawm teb tsis zoo. MVA (Multi-Domain Vertical Alignment, ntau qhov chaw sib koom ua ke) technology tau pom hauv ib qhov chaw 160 degree, thiab qhov sib txawv thiab lub sijhawm teb tau zoo heev. Nws yog tsim rau kev ua si ntawm kev yees duab thiab kev ua si.
thaj chaw pom
Pom qhov chaw hais txog thaj chaw ntawm qhov screen uas siv tau los tso saib cov duab hauv cov ntawv siv. Vim tias qhov loj ntawm lub CRT zaub yog qhov loj ntawm cov duab raj, qhov uas siv tau los tso saib cov duab tsis ncav qhov loj ntawd txhua qhov, vim tias cov duab thaij duab rau ib qho chaw ntawm qhov chaw. Feem ntau hais lus, pom thaj tsam ntawm 17 nti CRT zaub yog li ntawm 15.8-16 ntiv tes, thaum pom thaj tsam ntawm 15 inch diam duab tsuas yog li ntawm 13.8 nti xwb. Tab sis rau LCD, qhov loj ntawm qhov loj me me yog qhov loj ntawm cheeb tsam pom, qhov chaw nyob ntawm tus ciam teb yog qhov tsawg, thiab qhov pom ntawm 15 inch LCD yog li 14.5 nti, uas yog vim li cas cov LCD zoo li ntau loj tshaj qhov loj tib CRT. Yog li 15 lub zos no yeej txaus thaum koj yuav LCD.
Brightness thiab sib piv
Cov kev ua kom pom ntawm cov LCD yog ib qho chaw nrig. Lub ci ci ntawm lub teeb ci pom tau tias qhov ci ci thiab xim ntawm cov LCD tag nrho. Raws li, qhov ci ntsa iab ntawm cov kua siv lead ua kua, qhov zoo dua ntawm lub luminance yog cd / m2 (ib qho square meter square), los yog hu ua NIT lumen. Tam sim no, feem ntau qhov ci ntawm TFT npo pib ntawm 150Nits, feem ntau 200Nits tuaj yeem tso tau ib daim duab zoo dua. Qhov zoo yog xim dub thiab dawb ob qib sib txawv ntawm cov xim sib txawv. Qhov sib npaug ntawm 120: 1 tuaj yeem pom cov xim zoo nkauj thiab nplua nuj (vim qhov sib txawv ntawm tib neeg qhov muag yog txog li 100: 1), thiab qhov sib piv tus nqi txog li 300: 1 tuaj yeem pab txhawb cov xim ntawm txhua qhov kev txiav txim. Tam sim no, qhov sib piv ntawm feem ntau cov lus qhia hauv LCD yog ntawm 100: 1 thiab 300: 1. Tam sim no, tsis muaj ib qho kev cai ncaj ncees los ntsuas qhov sib txawv ntawm qhov ci thiab qhov sib txawv, yog li yuav DVR nyob ntawm ib lub qhov muag ntse. Yog li, peb yuav tsum tau them sai sai rau qhov kev ntsuas no thaum xaiv LCD, thiab nws tseem yog qhov sib txawv hauv qhov kev ua tau zoo ntawm cov khoom siv hauv LCD.
fab npaum li cas
Lub sij hawm rau kev ntsuas cov tshuaj tiv thaiv yog milliseconds (MS), hais txog lub sij hawm yuav tsum tau siv pixels tig los ci ntsa iab thiab tsaus ntuj mus rau ob. Qhov me me tus nqi, qhov me me tus nqi, ceev dua cov tshuaj tiv thaiv. Tam sim no, tus mainstream LCD muaj ntau tshaj 25 xe ceev ceev, thiab tsis muaj kev sib raug zoo ntawm kev lagluam siv (xws li lo lus ua haujlwm lossis ntawv luam), vim siv li no tsis tas yuav tsum tau zov ntau txog lub sijhawm tshuaj tiv thaiv LCD. Thiab yog tias nws siv los ua si, saib VCD / DVD thiab lwm yam puv npo dynamic-dynamic dluab, lub sijhawm tshuaj tiv thaiv yog tshwj xeeb yog qhov tseem ceeb, yog tias lub sij hawm ntev dua, daim duab yuav tshwm rau cov khoom tawg, khib nyiab thiab lwm yam tshwm sim. Ua piv txwv yooj yim, feem ntau ntawm cov ntawv LCD qhia txog kev ua lag luam tam sim no muaj ntau hom kev sib tw thaum ua si QUAKE3, tshwj xeeb tshaj yog thaum twg daim duab tshiab ntawm kev kub ceev. CRT twb tsis muaj teeb meem txhua, vim hais tias cov tshuaj tiv thaiv lub sij hawm ntawm CRT tsuas yog 1ms, thiab yuav tsis muaj kev tshwm sim tail.

Xim
Thaum nws tuaj txog xim, LCD tsis muaj qhov sib tw rau CRT. Raws li, CRT tuaj yeem tso cov xim raws li cov cim hauv TV. LCD tsuas qhia tau hais txog 260 txhiab xim, thiab feem ntau ntawm cov khoom muag thov kom muaj peev xwm tso saib 16 lab 770 nplooj xim (16777216 xim, 32 khoom), tiam sis lawv yeej pom tau hais los ntawm txoj kev dithering, thiab muaj ib qho loj sib txawv piv nrog qhov tiag tiag 32 xim, yog li nws tseem tsawg tshaj li cov kab CRT hauv xim fais fab thiab kev hloov. . Tib txoj haujlwm, LCD tsis muaj peev xwm ua tau cov grayscale dua CRT. Yog tias koj muaj qhov xwm txheej, koj tuaj yeem sib piv tau koj tus kheej: nrhiav tau ib tug 17 inch nti ntawm tus kiv cua, thiab tom qab ntawd muab 15 nti LCD, thiab tso saib 16 lab 770,000 xim duab. Daim duab tso tawm los ntawm CRT yog qhov kaj lug, thaum LCD tshwm sim me ntsis "tsis tseeb". Txawm hais tias nws tsis tau hais tias qhov twg tsis yog, nws tsis haum nrog CRT.
Pom cov nyhuv
Ua ntej, CRT, tam sim no, feem ntau ntawm cov tsev neeg hauv tsev CRT muaj sib txawv ntawm kev ua kom pom tseeb, kev sib haum xeeb, qhov teebmeem ntawm lub cev thiab lwm yam ntawm qhov teeb meem, uas yog cais tsis tau ntawm qhov chaw tsim khoom thiab kev tsim haujlwm. Yog hais tias qhov kev tswj xyuas yam tsis tau tsim los ntawm lub khw tsim kho tsis txaus, cov teeb meem tau hais los saum toj no yooj yim tuaj nrog. Qhov no kuj yog vim li cas lub SONY qhia cov duab sib txawv ntawm lwm cov tuam txhab. LCD tsis muaj kev kub siab rau txhua qhov, vim hais tias nws tsuas tsis tau ua kom pom tseeb. Txawm li cas los xij, LCD thiab distortion hauv internet thiab lwm yam teeb meem kuj tuaj yeem tshwm sim tau, tiam sis CRT feem ntau tshwm sim.
hluav taws xob
Vim tias lub teeb ntawm CRT cov duab yuav raug tso tawm los ntawm lub cathode tube thiab kuj tawm cov hluav taws xob, nws yog qhov phem heev rau tib neeg lub cev, tab sis tom qab ntawd ces qhov TCO9X yog qhov CRT tau zoo heev hauv qhov hwm no. Tab sis vim nws txoj haujlwm ua haujlwm, LCD yuav tsis xa cov hluav taws xob me ntsis tom haujlwm, ntau zog dua CRT. Yog li, tsev neeg los yog kev siv cov CRT yog tsim dua, cov nyhuv multimedia yuav zoo dua thiab tus nqi tseem pheej yig, LCD LCD yog tsim dua rau kev coj mus muag, Tshuag lag luam, media editors yog tsim nyog rau kev siv LCD.