Plasma vs LCD vs LED vs DLP
Txawm tias koj tabtom tshawb nrhiav TV tshiab lossis saib cov qauv tshiab hauv khw muag khoom , koj tuaj yeem tuaj yeem nyob ntau ntau hom kev lag luam uas cov lag luam feem ntau siv hauv cov niaj hnub HDTV. Txhua tus muaj tib lub hom phiaj - pleasing duab zoo - tab sis txhua tus "daim ntawv qhia" muaj tus cwj pwm zoo thiab kev nyiam. Cov no muaj nqis txog kev paub txog thaum koj mus rau lub TV tshiab . Thaum koj tshawb nrhiav, nco ntsoov tias nws yog qhov chaw uas suav, tsis yog txoj kev taug; ib daim duab zoo TV yog ib daim duab zoo TV uas tsis muaj teeb meem uas siv tshuab.
Plasma TVs
Plasma yog thawj kab xev tev naus laus zis hauv TV uas yuav tsim tau cov duab zoo hauv tsev ua yeeb yaj kiab ntawm 42 "thiab nce." Txawm hais tias muaj ntau tus kws tshaj li kev tshawb fawb plasma tsim cov duab zoo tshaj plaws, cov ntshav TV tsis yog tsim vim tsis muaj kev lag luam sib cuam tshuam ntawm LCD TVs.
LCD TVs
Txawm hais tias nws tau siv ib lub sijhawm rau LCD (kua siv coj los ua kua) kom ntes tau raws li kev pom zoo ntawm kev ua lag luam thiab kev ua haujlwm, qhov no yog tam sim no tus qauv TV thiab muaj nyob hauv hlwb-boggling ntau hom, ntau thiab qauv xaiv. Vim hais tias ntawm ntau qhov no, duab zoo yuav txawv heev, qee zaus txawm tias txawv ntawm cov qauv ntawm cov tib lub npe.
LCD Zoo Tshaj Plaws
LCD TVs yog tsim los thaiv lub teeb nraub qaum, lub ntsiab lus tias lawv cov ntxaij vab tshaus feem ntau tsis yog-ci thiab lub teeb tawm ntawm lub vijtsam yog feem ntau ua rau siab dua nrog lwm cov technologies. LCD TVs kuj tsim tsawg dua kub thiab feem ntau haus tsawg dua hluav taws xob. ELCD TVs yog raug mob ntawm lub vijtsam "hlawv-hauv" thiab yog qhov kev xaiv zoo thaum cov dluab nyob ruaj khov yog ib feem ntawm qhov koj xav tau. Thaum kawg, LCD yuav muab rau koj xaiv ntau qhov hnyav thiab ntsuas ntau thiab tsawg.
LCD Drawbacks
Ntau tshaj li lwm cov TV technologies, LCD TVs sib txawv hauv daim duab zoo. Qhov no yog ib qho txiaj ntsig ntawm cov neeg coob coob uas muaj cov qauv, tab sis tseem vim tias LCD yog kev lag luam tsim khoom siv thiab ntau lub koom haum sib zog ua kom ntaus nqi qis tshaj plaws, tshwj xeeb tshaj yog cov qauv pib. LCD lub ntsiab kev sib tw yog cov duab ceev ceev; ntawm qee qhov teev, koj tuaj yeem pom ib txoj kab ntawm pixels lossis "blocky" saib hauv cov lus tsa suab ceev. Cov kws ua lag luam sim kho qhov no nrog ntau cov lus tsa suab "suab lus" ntxiv, qee zaum zoo, qee zaum tsawg dua. Pa LCD TVs kuj tsis muaj me tub xim dub thiab lwm cov technologies, uas ua rau tsis tshua meej thiab sib txawv dua li koj tuaj yeem tau txais lwm qhov chaw. Thaum kawg, cov duab hauv ntau LCD TVs yog qhov txawv txav thaum koj saib los ntawm cov nyob deb ntawm lub kaum sab xis.
LED TVs
LED (lub teeb emitting diode) TVs yog cov TV LCD ua tau nrog ib lub teeb sib txawv. Txhua lub teeb ci-LCD yuav tsum muaj nws cov pixels "lit" los ua cov duab. Nyob rau ntawm cov lus pom zoo hauv LCD, lub teeb hluav taws xob nyob rau tom qab ntawm lub teeb siv, tab sis ntawm cov teeb pom kev zoo dua, cov teeb me thiab ntau dua ntawm cov teeb ci hloov ntawm no. Muaj ob hom LED TVs. Ib tug ntawm lawv yog hu ua LED "ntug teeb pom kev zoo" - tsis yog lub teeb loj tom qab lub pixels, cov teeb ci me me nyob ntawm ntug qhov screen. Qhov no yog qhov yooj yim dua LED txoj kev. Nyob rau hauv ntau qhov kev tsim (thiab kim) "lub zos dimming" LED txoj kev, ob peb kab ntawm LED teeb raug muab tso rau tom qab ntawm lub vijtsam thiab cia nyob ze "lub zos" pixels kom siab lossis tawm, nyob ntawm seb qhov xav tau ntawm lub sijhawm ntawd koj nyob nraum menyuam. Qhov no ua rau zoo dua qhov sib txawv.
LED Zoo Tshaj Plaws
Vim tias teeb pom kev zoo dua zog thiab ntau dua li fluorescent teeb pom kev zoo, cov duab ntawm ib lub TV TV "pops" ntau dua li ntawm cov lus pom zoo LCD, nrog qhov zoo sib xws thiab kev nthuav dav, feem ntau nce cov duab zoo ntawm cov ntshav siab zoo dua. Qhov no yog qhov tseeb tshwj xeeb ntawm lub zos dimming LED poob lawm, uas kuj hu ua "full LED" models. LED teeb uas siv cov cuab yeej hluav taws xob tsawg "ntug" teeb pom kev zoo yuav ua rau lawg hlob muag - feem ntau tsawg tshaj li ib nti tuab. Thaum zoo ntawm qhov zoo nkauj, qhov kev ua tau zoo no tsis muaj teebmeem dabtsi hauv daim duab zoo. Ob lub hom TV TV zoo tshaj yog siv zog ntau tshaj li cov ntshav los yog LCD TV, uas txhais tau tias txo cov nqi hluav taws xob thiab tsev neeg muaj kev noj qab haus huv.
LED Drawbacks
LED TVs yuav kim dua li LCD TVs thiab muaj tsawg dua hauv kev xaiv LED TV; koj yuav tsis pom ntau hom lossis ntau thiab tsawg los xaiv. Kuj, vim LED yog qhov tseem ceeb hauv LCD technology, saib lub kaum ntsees yog qhov teeb meem; duab zoo yuav txawv yog tias koj zaum ntawm ntau lub kaum sab xis rau lub TV.
DLP TVs
Thaum lub khw feem ntau tau txav mus rau cov vijtsam xoom hauv tsev, ob peb lub tuam txhab tseem muab cov khoom loj "rear-screen projection" TV raws li Digital Light Processing (DLP) tsim los ntawm Texas Instruments nyob rau xyoo 1990s. Qhov no yog tib lub tshuab siv rau cov kev ua yeeb yaj kiab hauv cov yeeb yaj duab ua yeeb yam thiab ua haujlwm nrog ib plhom nrog ntau lab ntawm cov iav tsom iav uas muaj kev cuam tshuam cov duab (thiab cov duab) rau qhov kev tshuaj ntsuam raws li cov kev xav tau ntawm qhov khoom siv. Thaum cov TVs no tsis tiaj tiaj li, lawv tsis ua raws li cov laus hauv tsev kawm ntawv analog TV thiab tuaj yeem ua ntau yam loj hauv qhov screen loj.
DLP Txoj Kev Zoo
DLP yog ib qhov kev paub tab uas muaj peev xwm ua tau duab zoo. Nws ua tau zoo nyob rau hauv cov chav teeb ci los yog tsaus ntuj thiab muaj qhov zoo rau cov neeg tawm suab. Ntxiv rau daim duab zoo, DLP qhov loj tshaj yog bang rau tus phaw - koj tuaj yeem tau txais DLP npo loj dua li tus qauv qis dua ntawm qhov sib npaug, thiab hauv cov ntaub ntawv loj tshaj (60 nti thiab dhau), rau ntau tsawg nyiaj. DLP TVs kuj muaj nyob rau hauv 3D qauv.
DLP Drawbacks
DLP TVs tsis sib haum. Koj yuav xav tau ntau qhov chaw txawb chaw (los yog hauv tsev) rau DLP TV, tab sis yog koj tau txais chav rau nws thiab tsis xav tias koj lub TV tsis ncaj, qhov no tsis yog qhov teeb meem.