LCD TVs tau tuav lawv qhov chaw hauv peb tsev. Nws tsis zoo li leej twg yuav xav txog kev yuav CRT lossis cov khoom siv teeb, tshwj tsis yog tej zaum cov neeg nyiam ntawm cov khoom tsis tshua muaj thiab cov neeg sau khoom. Ntxiv mus, tus nqi ntawm yav tas los twb xam tsis tau raws li ib qho kev qhia ntawm practicality, tab sis es raws li ib tug nqi tsev cia puav pheej.
Hnub no lub khw muaj ntau hom, hom thiab cov qauv tshwj xeeb ntawm LCD TVs. Thiab nws yooj yim heev kom tsis meej pem hauv txhua qhov kev sib txawv no, tshwj xeeb tshaj yog rau cov neeg siv khoom nruab nrab. Thaum xaiv cov txheej txheem zoo li no, ntau yam yuav tsum tau coj mus rau hauv tus account. Ntawm no yog qhov kev pab cuam lub neej ntawm LCD TV, thiab kab pheeb ces kaum, thiab matrix, thiab backlight, thiab ntau ntxiv. Yog li kev yuav khoom yuav tsum tau ua kom muaj txiaj ntsig thiab mob siab rau. Tab sis txhua yam nyob rau hauv kev txiav txim.
Los ntawm peb tsab xov xwm koj yuav pom tias LCD TVs twg tuaj yeem nrhiav tau ntawm kev muag, dab tsi los nrhiav thaum xaiv cov txheej txheem ntawm hom no thiab yuav ua li cas tsis suav nrog kev yuav khoom. Peb coj mus rau hauv tus account cov lus qhia ntawm cov kws tshaj lij hauv daim teb no thiab cov neeg siv khoom tshuaj xyuas. Yog li cia peb pib.
Cov kua siv lead ua kua yog dab tsi?
Ua ntej peb qhia koj tias LCD TVs yog dab tsi, ua ntej cia peb tham txog cov thev naus laus zis nws tus kheej. Yog koj tso txhua yamLub sijhawm thev naus laus zis uas yuav muaj kev txaus siab rau cov engineers nkaus xwb, ces peb tuaj yeem hais tias lub vaj huam sib luag LCD yog cov qhaub cij.
Lub ntsiab lus tseem ceeb ntawm lub TV no yog ob lub rooj tsav hluav taws xob. Ib hom kua kis nruab nrab ntawm lawv, qhov twg me me granules - muaju nyob. Lub tom kawg tsuas yog ua lub luag haujlwm ntawm pixels - dots ntawm lub vijtsam uas tag nrho cov duab tau tsim.
Tab sis cov crystals lawv tus kheej tsis ci, yog li qhov no ntawm kev ua haujlwm poob rau ntawm lub xub pwg nyom ntawm LEDs tso rau ntawm qhov kawg lossis tom qab lub vaj huam sib luag. Nws tseem tsim nyog sau cia tias lawv tawm tsuas yog lub teeb dawb, uas yog xim siv RGB lim. Muaj tsawg kawg yog ib qho rau pem hauv ntej ntawm txhua lub pob zeb, tab sis muaj.
Lub tshuab no hu ua LED. Yav dhau los LCD TVs tau siv los ntawm LCD backlight, qhov twg lub ntsiab yog cov teeb fluorescent me me thiab ib lub teeb txias cathode loj. Cov thev naus laus zis no tsis tau tso cai kom ua tiav qhov tsis sib xws ntawm lub vijtsam, thiab kev siv LEDs daws qhov teeb meem no.
Yog li txhua qhov niaj hnub digital LCD TVs tuaj nrog LED backlighting. Cov qauv LCD kuj tuaj yeem pom ntawm kev muag khoom, thiab lawv muaj lawv qhov zoo, tab sis cov kws tshaj lij hauv daim teb no tseem pom zoo kom nres ntawm cov cuab yeej siv niaj hnub no. Yog li ntawm qhov no (LED / LCD) koj yuav tsum tau them nyiaj tshwj xeeb thaum xaiv cov khoom siv TV.
Tom ntej, cia peb saib seb LCD TVs nrog LED backlighting txawv li cas.
Ntau yam ntawm LED
Qhov chaw ntawm LEDs ntawm lub vaj huam sib luag kuj yog qhov txiav txim siab rau kabscreen yam ntxwv. Tam sim no, koj tuaj yeem pom ob hom kev siv tshuab no - "Direct Ice" thiab "Edge Ice". Cia wb mus saib lawv.
Direct LED
hom illumination no kuj hu ua ncaj. Ntawm no peb muaj kev sib xyaw ua ke ntawm cov muaju thoob plaws hauv lub vaj huam sib luag. Muaj qhov tshwj xeeb ntws diffuser nruab nrab ntawm lub vijtsam nws tus kheej thiab lub teeb ci.
Lub tshuab no xav tau qhov chaw nruab nrab ntawm txhua lub hauv paus. Lawv yuav tsum tsis txhob nyob ze, txwv tsis pub daim duab tiav yuav tsis ua haujlwm. Lub thickness ntawm cov qauv nrog Direct Ice technology yog pom zoo dua li ntawm Edge Ice, tab sis tib lub sij hawm, cov duab zoo yog kom meej meej zoo. Qhov no tau lees paub tsis yog los ntawm cov kws tshaj lij nkaus xwb, tab sis kuj los ntawm kev tshuaj xyuas ntau ntawm LCD TVs nrog Direct LED.
Ntug LED
Hom teeb ci no hu ua ntug. Nyob rau hauv rooj plaub no, tag nrho cov LEDs nyob rau ntawm sab ntug ntawm lub vijtsam. Ib qho ntawm cov yam ntxwv tseem ceeb ntawm qhov kev tsim no yog kev txuag ntawm qhov chaw sab hauv. Vim li no, Edge Ice TVs yog thinner dua Direct Ice TVs.
Tab sis qhov thev naus laus zis no muaj nws qhov tsis zoo. Qhov teeb meem loj tshaj plaws yog qhov muaj "glare" lossis teeb pom kev tsis sib xws. Yog hais tias sab rails tsawg kawg yog me ntsis deformed, ces cov teeb meem tsis tuaj yeem zam. Vim li no, cov kws tshaj lij tau tawm tswv yim tawm tsam kev yuav khoom Edge Ice qauv nrog rau kev teeb tsa lossis raug tshem tawm.
Nyob rau hauv rooj plaub no, lub cev nyias yog tshwj xeeb tshaj yog ua rau deformation. Feem ntau cov qauv hwm tsis raug hem vim qhov kev nplua nujcov ntsiab lus hlau, tab sis nrog cov khoom siv los ntawm cov nqi nruab nrab thiab cov nyiaj siv nyiaj, koj yuav tsum tau ceev faj thiab saib xyuas ntau dua.
Matrix
Matrix yog lub ntsiab ntawm TV, lub luag haujlwm rau cov duab zoo. Hauv khw muag khoom koj tuaj yeem pom ntau yam ntawm nws ntau yam, tab sis tsuas yog plaub hom sawv ntawm lwm tus. Hom matrix kuj cuam tshuam rau lwm cov duab tso zis tsis tau, nrog rau lub peev xwm los kho lub LCD TV. Cia wb mus saib txhua yam.
IPS
Ib qho ntawm qhov zoo ntawm IPS-matrices yog qhov pom dav tshaj plaws rau hnub tim, uas yog, 178 degrees. Yog tias tus neeg siv nyob hauv lub kaum sab xis no, cov duab yuav pom meej thiab tsis pom qhov muag plooj.
Cov xim dub ntawm IPS-matrices sib txawv hauv qhov tob thiab zoo li yuav luag zoo meej. Tej zaum tsuas yog qhov teeb meem tseem ceeb ntawm hom no yog lub sijhawm teb. IPS nyob rau hauv cov ntaub ntawv no poob me ntsis rau lwm yam matrices. Qhov teeb meem tau daws ib nrab los ntawm kev hloov kho S-IPS, tab sis lub neej ntawm LCD TV tau txo qis me ntsis.
Cov tshuab no yog qhov siv tau tshaj plaws thiab pheej yig. Muaj ntau qhov kev tshuaj xyuas txog nws, feem ntau ntawm lawv tau sau rau hauv txoj kev zoo. IPS matrices tsuas yog tsis muaj qhov cuam tshuam loj.
PLS
Qhov no yog kev tsim kho tus tswv ntawm Samsung, uas yog qhov sib luag ntawm IPS-matrix. Qhov kev ua tau zoo tseem yuav luag zoo ib yam, nrog rau qhov sib txawv tsuas yog lub hom lag luam tswj kom txo cov nqi tsim khoom, nrog rau cov nqi ntawm cov khoom lag luam. TVs.
VA
hom matrix no muaj ntau yam kev hloov kho. Thawj tiam VA muaj ib qho teeb meem tseem ceeb: thaum lub kaum sab xis pom tau hloov pauv, cov xim ntawm lub vijtsam pib "dancing", txawm hais tias qhov pom tseeb thiab nthuav dav tseem zoo ib yam.
Qhov teeb meem tau daws nrog kev pab los ntawm kev hloov kho tshiab ntawm S-PVA. Cov tom kawg tau txais yuav thiab nquag siv los ntawm Sony hom hauv lawv Bravia thiab LG nrog Samsung. Ntawm no, dynamic scenes twb tshwm sim raws li lawv yuav tsum tau thiab cov lus teb lub sij hawm yog ho txo. Qhov tsuas yog qhov qis dua rau VA IPS yog nyob rau hauv kev nthuav dav ntawm halftones. Qhov no yog qhov tshwj xeeb tshaj yog pom thaum ob hom LCD TVs txuas nrog hauv chav tsaus.
Kev tshuaj xyuas txog VA thev naus laus zis feem ntau yog qhov zoo. Cov matrices ntawm cov tiam tshiab ua rau nws yog qhov zoo nyob rau hauv ntau yam, tab sis tsuas yog ya nyob rau hauv cov tshuaj pleev ib ce yog saib cov ces kaum. Zoo li nws los tsis yog, tab sis IPS muaj ntau ntawm lawv. Lwm qhov zoo ntawm VA uas tsis tuaj yeem txo qis yog nws qhov pheej yig.
YUV2A
Nov yog kev tsim kho ntawm Sharp hom. Pixel tswj nyob rau hauv cov ntaub ntawv no yog raws li ultraviolet. UV2A sensors muaj qhov siab tshaj plaws ntawm qhov sib txawv thiab ci ntsa iab. Tsis tas li ntawd, cov tswv hauv lawv cov kev txheeb xyuas nco ntsoov tias UV2A thev naus laus zis yog kev lag luam ntau dua li cov analogues tau piav qhia saum toj no, thiab tib lub sijhawm nws tso cai, txawm hais tias tsis yog ntau, tab sis txhua yam los ua kom lub neej ntawm LCD TV.
Permission
Qhov meej ntawm daim duab nyob ntawm qhov kev daws teeb meem ntawm matrix. Qhov ntau dots ntawm lub vijtsam tuaj yeem tso tawm, cov duab ntxaws ntxiv yuav yog. SD hom ntawv nrog layout tau ntev lawm640 x 480 pixels. Nws tau hloov los ntawm cov tiam tshiab uas tuaj yeem pom ntawm cov khoom txee.
Kev teeb tsa tiag tiag ntawm TV niaj hnub:
- HD - 1366 los ntawm 768 dots.
- Full HD - 1920x1080.
- UHD/4K - 3840 x 2160.
Qhov kev ntsuas no tau nthuav tawm tag nrho thaum saib TV digital thiab cais cov ntsiab lus video. Tab sis koj yuav tsum tsis txhob cia siab tias yuav muaj kev hloov pauv tseem ceeb thaum lub sijhawm tshaj tawm hauv xov tooj cua analog, vim tias nws twb tau khiav hauv qhov kev teeb tsa ua ntej.
Qhov kev daws teeb meem tshaj plaws niaj hnub no yog Full HD. Feem ntau cov tuam ntxhab ntawm ob lub TV thiab cov ntsiab lus tau coj los ntawm hom ntawv no. Yog lawm, 4K cov yeeb yaj kiab tau ntxiv txhua hnub, tab sis tseem muaj tsawg dhau los rau cov neeg siv khoom loj.
kab pheeb ces kaum
Qee tus yuam kev ntseeg tias qhov ntsuas no yog qhov tseem ceeb thaum xaiv TV, tab sis qhov tseeb nws tsis yooj yim li. Cov kab pheeb ces kaum ntawm LCD TV yuav tsum raug xaiv los ntawm qhov loj ntawm chav uas nws yuav sawv. Piv txwv li, nyob rau hauv ib tug me me chav pw nws yuav nyuaj heev kom txaus siab rau tag nrho cov txiaj ntsim ntawm ib tug loj LED vaj huam sib luag, vim hais tias tus neeg siv tsuas tsis tuaj yeem ntes tag nrho cov duab nrog ib saib - nws yuav tsum tig nws lub taub hau ntawm ib sab mus rau sab kom tsis txhob muaj teeb meem. nco lub sijhawm tseem ceeb ntawm qhov screen.
Kev txiav txim los ntawm kev tshuaj xyuas ntawm cov tswv, rau cov chav me me xws li chav ua noj lossis chav pw, qhov kev xaiv zoo tshaj plaws yuav yog kab pheeb ces kaum ntawm 19 txog 26 ntiv tes. Yog chavloj, ces koj tuaj yeem saib cov khoom siv ntawm 32 . Feem ntau, kab pheeb ces kaum ntawm 32-49 ntiv tes yog qhov kev xaiv thoob ntiaj teb rau chav nyob thiab lwm chav loj loj.
Thaum nws los txog rau kev npaj ua yeeb yam hauv tsev, ces nws tsim nyog xav txog cov qauv ntawm 50 txog 64 . Cov khoom siv nrog lub kab pheeb ces kaum loj tuaj yeem pom nyob rau hauv cov tsev lag luam, vim tias qhov loj me no qhia qhov ntev ntawm chav tsev.
Suab
Thaum xaiv tus qauv LCD, ntau tus neeg saib tsis pom qhov tseem ceeb xws li suab. Txawm hais tias tus qauv tsim cov duab zoo kawg nkaus, txhua qhov kev xav zoo yuav poob mus rau qhov dej vim lub suab nruab nrab.
Ntawm no yog tsim nyog sau cia tam sim ntawd vim yog cov qauv tsim ntawm LCD TVs, hauv cov hauv paus ntsiab lus, lawv tsis tuaj yeem nqa cov acoustics ntawm lub nkoj. Yog li nyob rau hauv feem ntau koj yuav tau saib xyuas ntawm ib tug ywj siab system. Txawm li cas los xij, ntau lub tuam txhab tab tom sim tswj, yog tias tsis muaj kev tshaj lij, ces tsawg kawg tsuas yog qib siab ntawm acoustics.
Piv txwv li, Sony muab nws cov qauv nrog cov txheej txheem thev naus laus zis Long DuctSpeakers, uas muaj cov duab kauv. Lawv tsis siv ntau qhov chaw, tab sis txawm tias lawv qhov me me, lawv muab lub suab txaus - meej thiab muaj zog. Lawm, ib tug tsis tuaj yeem suav rau qhov tshwj xeeb tsawg zaus nrog "cov menyuam yaus", tab sis nws yooj yim heev los saib cov yeeb yaj kiab, yeeb yaj kiab thiab lwm yam ntsiab lus uas tsis suav nrog cov kev taw qhia ntawm cov hlau hnyav.
Qee lub tuam txhab suav nrog TV firmwareqee qhov software tshiab uas tso cai rau koj los ua thiab tsim lub suab zoo txawm tias cov neeg hais lus nruab nrab. Lwm cov tshuab suav nrog ClearAudio, Bass Reflex, Clear Phase, thiab lwm yam.
Interfaces
Thaum yuav lub TV LCD, nws yog qhov tseem ceeb kom paub meej txog qhov muaj nuj nqis thiab qhov zoo ntawm kev sib tshuam. Cov npe ntawm cov khoom txuas txuas ncaj qha nyob ntawm lawv. Cov kws tshaj lij pom zoo kom kuaj xyuas USB interface thiab HDMI tso zis.
Thawj qhov tsim nyog rau kev ua haujlwm nrog cov tsav sab nraud, nrog rau saib cov ntsiab lus thib peb, thiab qhov thib ob yog qhov chaw nres nkoj thoob ntiaj teb rau cov khoom siv niaj hnub no feem ntau. Cov tom kawg suav nrog cov khoom siv xov xwm, game consoles thiab ntau tus players. Tag nrho cov ntawm lawv yuav tsum tau nruab nrog HDMI interface.
Lub neej
Kuv yuav tsum ceeb toom koj tam sim txog qee qhov kev cai lij choj ntawm qhov ntsuas no. Yog tias lub neej ua haujlwm ntawm LCD TV tsis tau teev nyob rau hauv cov lus qhia, lub neej ntawd yog 10 xyoo. Nws tau sau ua xim dub thiab dawb nyob rau hauv Txoj Cai Tiv Thaiv Cov Neeg Siv Khoom rau Cov Khoom Siv Sijhawm.
Qhov tseeb yog tias cov neeg tsim khoom txhob txwm tshaj tawm lub neej ua haujlwm ntawm cov khoom siv no kom tsuas yog tsis ua haujlwm rau nws. Txoj hauv kev no yog qhov tsim nyog los ntawm qhov tsis tsim nyog ntawm kev kho. Tus nqi tom kawg yuav luag sib npaug ntawm cov cuab yeej tshiab.
Ntawm qhov nruab nrab, LED LCD TVs kav ntev li 30,000 teev (ua haujlwm txuas ntxiv). Yog hais tias peb coj mus rau hauv tus account cov kev tshuaj xyuas ntawm cov tswv ntawm xws li cov khoom, ces cov cuab yeej yog txaus rau txogtsib xyoos. Yog tus qauv yog hwm, ces 7 xyoo lossis ntau dua.
Plasma thev naus laus zis hauv qhov xwm txheej no ua tau zoo dua li LCDs, qhov twg cov vaj huam sib luag kav 100,000 teev. Tab sis txawm nyob ntawm no muaj pitfalls. Qhov tseeb yog tias plasma TVs yog 3 lossis 4 npaug ntau dua gluttonous hais txog hluav taws xob ntau dua li LCDs. Tsis tas li ntawd, lub vijtsam daws teeb meem ntawm "plasma" yog qis dua, uas txhais tau hais tias qhov pom tseeb nrog cov ntsiab lus yog nyob rau theem qis. Yog li no yog rab ntaj ob sab - koj yuav tsum txi ib yam dab tsi.
