Tam sim no txhua lub khw muag khoom siv hluav taws xob tuaj yeem muab cov neeg siv khoom xaiv loj ntawm TV niaj hnub. Lawv txawv ntawm qhov kev daws teeb meem zoo, xim gamut, muaj (tsis muaj) hauv Internet thiab ntau lwm yam haujlwm, nrog rau qhov loj ntawm lub vijtsam nws tus kheej. Tsis tas li ntawd, ntawm no koj tuaj yeem yuav ib lub monitor tsim nyog rau koj lub computer hauv tsev. Qhov zoo tshaj qhov screen loj yog 22 ntiv tes.
History of TVs
Tam sim no nws nyuaj rau xav txog tias ib zaug tsis muaj cov khoom siv hluav taws xob ntau hauv tsev li tam sim no. Ntau yam khoom siv tau tshwm sim nyob rau thaum xaus ntawm lub xyoo pua 20th. Yog li thawj TV pom lub ntiaj teb tsuas yog xyoo 1947. Txawm hais tias nws txoj kev loj hlob tau pib ntev ua ntej ntawd.
Lub tshuab ntawm thawj lub TV tau tsim nyob rau xyoo 1884. Nws tus sau yog tus neeg ua haujlwm railway Nipkow los ntawm lub teb chaws Yelemees. Txawm li cas los xij, cov thev naus laus zis no tau dhau los ntawm lub tshuab hluav taws xob cathode tshiab. Nws tau tsim los ntawm tus kws tshaj lij Lavxias Rosing. Tom qab ntawd, cov yeeb nkab tau txhim kho los ntawm tus kws tshawb fawb Zworykin.
Mass qauv tau dhau lostsim nyob rau hauv lub USSR tom qab tsov rog, nyob rau hauv 1949. Lub TV tshiab hu ua "KVN-49". Nws yog lub thawv loj loj nrog lub kinescope ntev thiab ib daim iav tshwj xeeb uas cuam tshuam cov duab. Cov pej xeem Soviet pom cov xim TV tsuas yog hauv 70s. Tus kab pheeb ces kaum ntawm thawj Electron yog kwv yees li 22 ntiv tes.
Kev hloov pauv hauv qhov zoo thiab muaj ntau ntawm TVs tshwm sim tom qab lub koom haum vau. Nws yog thaum ntawd cov qauv txawv teb chaws dej nyab lub khw hauv ntau qhov ntau thiab tsawg thiab tsim.
Tim TVs niaj hnub
Qhov kom zoo dua ntawm kev nce qib rau cov neeg siv khoom yog ntau yam qauv ntawm cov cuab yeej paub. Cov neeg paub txog 3D, LCD, LCD thiab lwm yam niaj hnub TVs. Thiab dab tsi yog qhov txawv ntawm cov qauv no, thiab cov txheej txheem nrov twg muaj nyob rau hauv? Tam sim no hauv khw muag khoom koj tuaj yeem pom cov TV no:
- Plasma. Tus tsim siv cov roj tshwj xeeb ionized nyob nruab nrab ntawm cov iav panels. Cov qauv zoo li no txawv ntawm qhov tob tob thiab qhov sib txawv. Txawm li cas los xij, lawv hnyav heev thiab siv ntau lub zog. Yog li ntawd, txawm tias tus qauv TV (22 ntiv tes) yog qhov nyuaj heev los nqa.
- Projection. Cov qauv zoo li no muaj ntau lub lens thiab cov reflectors. Lawv xyaum tsis tshua kim thiab kim heev.
- Cinescope. Lub hauv paus ntawm cov khoom siv no yog lub raj hluav taws xob cathode. Cov TVs no yog kev lag luam ntawm kev siv hluav taws xob thiab nqi. Txawm li cas los xij, lawv loj heev ntawm lub vijtsam me.
- LCD TVs. Ntawm no, cov kua siv lead ua tshwj xeeb raug kaw ntawm cov panels. Tam sim no nrov tshaj plawsLCD thiab LED qauv.
Yuav ua li cas xaiv lub TV zoo?
Ntau zaus muaj qhov xwm txheej tshwm sim thaum tus neeg yuav khoom hauv lub khw muag khoom siv hauv tsev, pom txhua yam ntau yam, tsuas yog poob. Tom qab tag nrho, xaiv txoj kev xaiv tsis yog yooj yim heev. Tab sis muaj ob peb yam yuav tsum tau xav txog ua ntej yuav:
- Size. Nws tuaj yeem yog kab pheeb ces kaum me me ntawm 22 ntiv tes lossis qauv tshaj 30 ntiv tes.
- TV hom. Koj tuaj yeem xaiv cov kab hluav taws xob, kua siv lead ua kua lossis cov qauv ntshav.
- tuam txhab tsim khoom. Ntawm no, txhua tus xaiv tsuas yog los ntawm lawv tus kheej kev txiav txim siab thiab kev siv zog ntawm kev tshaj tawm kev tshaj tawm.
- Nqe. Cov qauv no kuj nyob ntawm pob nyiaj siv thiab peev xwm ntawm txhua tus neeg yuav khoom.
Nyob rau hauv rooj plaub no, koj yuav tsum tau xyuam xim tshwj xeeb rau qhov loj thiab hom TV, vim tias txhua hom muaj nws tus yam ntxwv thiab qhov tsis zoo. Piv txwv li, nyob rau hauv ib chav me me nws yuav tsis tsim nyog rau nruab ib lub qauv nrog lub kab pheeb ces kaum loj. Thiab kev siv TVs raws li cov kua siv lead ua kua vaj huam sib luag muab kev ceev faj ntau dua li lwm hom kev siv tshuab zoo sib xws.
Dab tsi yog kab pheeb ces kaum zoo dua xaiv?
Raws li txoj cai, yuav luag txhua tus neeg yuav khoom saib TV loj. Ua ntej xaiv qhov kawg, koj yuav tsum ua tib zoo txheeb xyuas ntau lub ntsiab lus tseem ceeb:
- chaw;
- qauv hom;
- qhov chaw tshwj xeeb TV;
- lub hom phiaj ntawm kev siv tshuab.
Piv txwv li, cov qauv kinescopic uas tsis muaj hnub nyoog yog qhov yooj yim tshaj plaws nrog lub vijtsam tsis loj dua 30 ntiv tes. Tom qab ntawd cov duab yuav yog qhov zoo tshaj plaws thiab pom tseeb. Yog li ntawd, kab pheeb ces kaum ntawm 22 ntiv tes yuav zoo.
Hauv chav loj, lub TV loj yuav zoo tshaj plaws. Qhov tsawg kawg nkaus lub vijtsam yuav tsum yog tsawg kawg 26 ntiv tes.
Ntxiv rau, ntau nyob ntawm qhov kev daws teeb meem ntawm tus saib. Qhov loj dua, qhov zoo ntawm cov duab zoo. Piv txwv li, txawm tias thaum koj mus ze rau ntawm qhov screen, koj tsis pom qhov "graininess" ntawm daim duab.
Tsis tas li, cov kws tshaj lij pom zoo kom coj mus rau hauv tus account qhov kev ncua deb ntawm TV:
- 61-80 ntiv kab pheeb ces kaum yog qhov zoo tshaj plaws siv rau qhov chaw tshaj 4-5 meters;
- nrug 2-2, 5 m yuav zoo rau TVs 26-32 ntiv tes;
- yog tias koj saib TV ntawm qhov deb txog li 2 meters, koj yuav tsum xaiv lub vijtsam me dua.
Yuav ua li cas thiaj xaiv lub saib zoo?
Computer yog ib qho khoom siv thoob ntiaj teb uas pab peb sib txuas lus, khwv tau nyiaj thiab so kom txaus. Peb siv sijhawm ntau nyob rau pem hauv ntej ntawm nws qhov screen. Yog li ntawd, thawj thiab qhov tseem ceeb tshaj plaws thaum xaiv lub monitor yog nws txoj kev nyab xeeb. Cov qib hluav taws xob yuav tsum khaws cia kom tsawg li sai tau.
Yog tias peb tham txog qhov loj ntawm lub vijtsam, ces koj yuav tsum txiav txim siab rau lub hom phiaj tseem ceeb uas lub khoos phis tawj tau npaj. Yog tias nws tau yuav tshwj xeeb rau kev saib cov yeeb yaj kiab hauv online, tsos thiab TV, ces koj tuaj yeem yuav ib qho screen ntawm 24 txog 40 ntiv tes. Yog tias lub hom phiaj yog kev sib txuas lus hauv ntau yam kev sib raug zoo thiab kev ua haujlwm,nws zoo dua mus me me. Qhov kev xaiv zoo tshaj plaws yog 22 ntiv tes (saib). Nws yog qhov tsim nyog rau thaj tsam ze, thiab tseem yuav yooj yim rau kev saib ntau yam yeeb yaj kiab.
Ntxiv rau, ua tib zoo saib lub kaum sab xis ntawm lub vijtsam, pixel teb lub sijhawm, ci ntsa iab thiab qhov sib piv.
Tsuas yog tom qab kev tshuaj xyuas tag nrho ntawm cov ntsiab lus no, koj tuaj yeem xaiv tus saib xyuas zoo. Nws feem ntau yuav raug nqi me ntsis ntau dua li cov qauv niaj hnub, tab sis yuav kav koj ntev dua.
Top monitor manufacturers
Tam sim no ntawm kev ua lag luam ntawm TVs thiab saib xyuas muaj ntau lub tuam txhab sib txawv koom nrog hauv kev tsim cov khoom siv. Qee tus ntawm lawv tau koom nrog kev tsim cov khoom kim heev, ib tus neeg tshwj xeeb hauv kev xaiv nyiaj txiag, thiab lwm yam.
Hom TV twg zoo dua xaiv? Rau qhov no, ntau qhov kev ntsuam xyuas thiab tshuaj xyuas tau muab tso ua ke. Txhua xyoo cov npe ntawm cov tuam txhab xyaum tsis hloov. Cov tuam txhab nrov tshaj plaws:
- Philips. Hom no belongs rau 19th qhov chaw nyob rau hauv cov nqe lus ntawm kev muag khoom nyob rau hauv Russia. Lub tuam txhab tus qauv 3D tau yeej qhov khoom plig zoo tshaj plaws hauv Tebchaws Europe.
- Samsung. Lub tuam txhab thoob ntiaj teb vam meej uas tuav txoj haujlwm tseem ceeb hauv kev lag luam ntawm Russia thiab Ukraine. Qhov kev xaiv zoo tshaj plaws rau cov tswv computer yog 22-nti Samsung saib.
- Sony. Lub tuam txhab muaj ntau yam no tsis tsuas yog tsim TVs xwb, tab sis kuj tsim ntau lwm yam khoom siv thiab khoom siv.
- LG. Ib qho ntawm feem ntau thiab muaj npe nrov npe ntawm TVs thiabsaib xyuas. Qhov zoo tshaj qhov piv ntawm tus nqi thiab kev ua tau zoo.
Qee qhov tseeb txog TV thiab TV
Txhua qhov chaw muaj lub sijhawm tshwj xeeb uas dhau los ua cov ntsiab lus hauv nws keeb kwm. Muaj ob peb qhov tseeb zoo sib xws hauv TV thiab TV.
- Thawj zaug txhua lub xov tooj digital tau tshwm sim hauv Luxembourg me.
- thawj lub xov tooj cua tau tsim los ntawm Max Dieckmann hauv xyoo 1907. Nws tsis yog 22 ntiv tes, tab sis tsuas yog 3 x 3 cm.
- Thawj zaug, cov neeg Amelikas tau tawm tsam kev lag luam thaum kaj ntug ntawm lub sijhawm TV. Tom qab ntawd lawv tau pom cov duab meej ntawm kab laum, tom qab ntawd ob peb tus neeg foob. Lawv tsoo cov neeg txais kev sim tua cov kab no.
- Plasma cov ntxaij vab tshaus yog qhov luv luv tshaj plaws, vim tias cov zaub pib ploj mus dhau sijhawm. Laser TVs suav hais tias yog qhov ruaj khov tshaj plaws.
