Plasma TVs tau txiav tawm thaum lig 2014. Tseem, ntau tus neeg siv khoom nyiam cov duab zoo ntawm lub plasma TV tshaj LCD TV vim, ib feem, ntawm sub-field drive rate ntawm plasma. Lub sub-field tsav tus nqi yog qhov tshwj xeeb tshwj xeeb rau plasma TV. Nws feem ntau hais tias 480 Hz, 550 Hz, 600 Hz, lossis tus lej zoo sib xws. Yog tias koj muaj lub plasma TV thiab tsis kam koom nrog nws, los yog nrhiav tau lub plasma TV kho dua tshiab los yog siv cov plasma TV koj xav tias tsim nyog yuav, qhov no txhais li cas?
Plasma TVs tau tsim los ntawm ntau lub tuam txhab, suav nrog, tab sis tsis txwv rau, LG, Samsung, Panasonic, thiab Sony.
Sub-Field Drive tus nqi vs. Screen Refresh tus nqi
Ntau tus neeg siv khoom tsis raug ntseeg tias qhov kev tsav tsheb me me yog piv rau lub vijtsam refresh tus nqi, zoo li lub vijtsam refresh tus nqi feem ntau hais rau LCD TVs. Txawm li cas los xij, sub-field tsav tus nqi ntawm lub plasma TV hais txog qee yam sib txawv.
Lub vijtsam refresh tus nqi yog pes tsawg zaus txhua lub thav duab rov ua dua hauv lub sijhawm tshwj xeeb, xws li 1/60th ntawm ib thib ob. Txawm hais tias plasma TVs muaj 60 Hz npo refresh npaum li cas, cov TVs no ua ib yam dab tsi, ntxiv rau, kom ua tiav cov lus teb ntxiv. Hauv kev txhawb nqa ntawm lub vijtsam refresh npaum li cas, plasma TVs xa rov qab hluav taws xob pulses rau cov pixels kom cov pixels teeb rau lub sijhawm uas txhua tus ncej qhia ntawm lub vijtsam. Lub sub-field tsav yog tsim los xa cov pulses ceev no.
Plasma TV Pixels vs LCD TV Pixels
Pixels coj txawv txawv hauv plasma TV dua li ntawm LCD TV. Pixels hauv LCD TV tuaj yeem qhib lossis tawm txhua lub sijhawm raws li lub teeb ci txuas ntxiv tau dhau los ntawm LCD chips. Txawm li cas los xij, LCD chips tsis tsim lub teeb. Hloov chaw, LCD chips xav tau ib qho ntxiv sab nraub qaum lossis ntug teeb los tsim cov duab uas koj tuaj yeem pom ntawm lub vijtsam.
Ntawm qhov tod tes, txhua pixel hauv plasma TV yog tus kheej-emissive. Qhov no txhais tau hais tias plasma TV pixels tsim lub teeb nyob rau hauv ib lub cell qauv (tsis xav tau qhov chaw backlight ntxiv). Txawm li cas los xij, nws tsuas tuaj yeem ua tau li ntawd rau lub sijhawm luv luv ntsuas hauv milliseconds. Hluav taws xob pulses yuav tsum raug xa mus rau tus nqi nrawm rau plasma TV pixels rau cov pixels kom nyob twj ywm lit.
Lub sub-field drive specification qhia tus nqi ntawm pes tsawg ntawm cov pulses xa mus rau pixels txhua thib ob kom tus ncej pom ntawm qhov screen. Yog hais tias lub plasma TV muaj 60 Hz npo refresh npaum li cas, uas yog feem ntau, thiab yog hais tias lub sub-field drive xa 10 pulses kom excite lub pixels nyob rau hauv ib tug 60th ntawm ib tug thib ob, lub sub-field drive rate yog teev li 600 Hz.
Cov duab zoo dua thiab cov lus tsa suab ntawm txhua lub vis dis aus zoo li smoother thaum xa cov pulses ntau dua hauv 60 HZ refresh tus nqi lub sijhawm. Qhov no yog vim pixel brightness tsis lwj sai li sai tau thaum lub sij hawm thaum lub thav duab tshwm, los yog thaum hloov los ntawm ncej mus rau ncej.
Txoj kab hauv qab
Txawm hais tias LCD thiab Plasma TVs sab nraud zoo ib yam, muaj qhov sib txawv sab hauv ntawm qhov txhua qhov qhia koj pom ntawm qhov screen. Ib qho tshwj xeeb sib txawv hauv plasma TVs yog qhov kev siv ntawm sub-field drive technology los txhim kho cov lus teb.
Txawm li cas los xij, ib yam li LCD TV screen refresh tus nqi, qhov no tuaj yeem yog qhov kev ua si yuam kev. Tom qab tag nrho, pes tsawg pulses yuav tsum raug xa mus rau 1/60th ntawm ib thib ob kom pom kev txhim kho hauv cov duab zoo? Koj puas tuaj yeem pom qhov sib txawv ntawm cov duab zoo thiab kev txav ntawm cov plasma TVs nrog sub-field tsav tus nqi ntawm 480 Hz, 600 Hz, lossis 700 Hz? Txoj hauv kev zoo tshaj plaws los nrhiav pom yog ua qhov muag sib piv kom pom qhov zoo tshaj plaws rau koj.
Txawm hais tias tsis hais txog ntawm qhov chaw tsav tsheb, plasma TVs feem ntau muaj cov lus teb zoo dua li LCD TVs.
FAQ
Koj ua li cas thiaj kuaj lub TV tus nqi tshiab?
Koj tuaj yeem paub koj lub TV qhov hloov tshiab ntawm cov ntaub ntawv uas tuaj nrog nws, lossis koj tuaj yeem ua Google tshawb. TVs feem ntau muaj 60Hz refresh npaum li cas; Txawm li cas los xij, qee qhov 4K TV tuaj yeem mus txog 120Hz.
Koj hloov tus nqi refresh ntawm lub plasma TV li cas?
Koj tsis tuaj yeem hloov pauv tus nqi refresh ntawm lub plasma TV, tab sis koj tuaj yeem ua kom zoo rau koj qhov kev pom los ntawm kev ua kom koj qhov chaw qhov refresh npaum li cas rau koj lub TV. Piv txwv li, yog tias koj siv Blu-Ray player nrog 1080p 60Hz TV, nco ntsoov tias tus neeg ua si kuj tso tawm cov yeeb yaj kiab ntawm 1080p thiab 60Hz.
Tus nqi hloov pauv hloov pauv yog dab tsi?
TVs nrog qhov hloov pauv hloov pauv tus nqi txhawb nqa qhov tshwj xeeb ntawm cov nqi tshiab thiab hloov kho sai sai rau qhov pom ntawm qhov screen. Qhov no yog qhov tshwj xeeb tshaj yog muab rau kev ua si, qhov twg cov nqi sib txawv tuaj yeem txawv ntawm ib lub sijhawm mus rau lwm qhov. Kev hloov pauv hloov tshiab kuj tseem pab txo qis kev siv lub zog ntawm lub laptops thiab cov khoom siv mobile thaum tsis siv.
Dab tsi yog qhov zoo dua tshiab ntawm 4K TV?
Tam sim no, haiv neeg 120Hz refresh tus nqi yog qhov siab tshaj plaws koj tuaj yeem tau txais ntawm 4K TV. Nws muaj txiaj ntsig tshwj xeeb yog tias koj ua si video games. Yam tsawg kawg nkaus, koj lub TV yuav tsum muaj 60Hz refresh npaum li cas rau qhov kev pom zoo.
