Ib tug tuaj yeem sib cav ntev ntev tias qhov zoo dua: TV lossis projector. Txawm li cas los xij, tib lub sijhawm, ntau tus tsis nkag siab qhov tseem ceeb ntawm ob yam no lossis tsis tau sim ob qho tib si lawv tus kheej, tab sis raug kho ntawm ib qho xwb. Nyob rau hauv cov ntaub ntawv no, nws yog lub sij hawm mus nrhiav kom paub ntau ntxiv txog dab tsi yog qhov tseem ceeb sib txawv ntawm ob pab kiag li lawm. Tom qab ntawd nws yuav nkag siab tias yuav siv lub projector es tsis txhob TV lossis tsis.
Tswv TswvYaj
Lub TV tau tshwm sim tsis ntev los no - xyoo 1929, tom qab ntawd Asmeskas lub tuam txhab Western TV ua tus tsim, nws tus nqi qis dua 100 las. Cov duab zoo li kuv yuav tsum tau siv lo ntsiab muag. Yog tsis muaj lo ntsiab muag, daim duab yog ib daim duab plaub qhov loj ntawm lub matchbox. Lub clarity thiab zoo yog txaus ntshai. Xyoo 1934, kev tsim khoom loj hauv TV tau tsim nyob rau hauv lub teb chaws Yelemees. Tus nqi ntawm cov khoom siv ces yog $445 rau ib kab pheeb ces kaum ntawm 30 centimeters.
Thiab tom qab lub sijhawm ntev, xyoo 1974, tau tshwm siminfrared chaw taws teeb tswj. Xyoo 1980s, cov thawv ntim khoom thiab cov khoos phis tawj tau los ua vogue, thiab tam sim no lub TV kuj tau ua lub luag haujlwm ntawm tus saib. Hauv xyoo 2000s, plasma panels thiab LCD TVs tau tshwm sim. Cov qauv CRT tau poob rau hauv oblivion.
Modern TV yog lub txais xov tooj cua ntawm cov duab thiab suab, qhia cov duab ntawm lub vijtsam thiab ua suab los ntawm cov neeg hais lus. Tau txais cov cim ntawm lub kav hlau txais xov lossis ntaus ntawv rov qab.
Features built-in tuner kom tau txais cov teeb liab ntau zaus, hloov cov cim rau hauv cov duab thiab suab haum rau tus saib.
TV cov ntsiab lus:
- fais fab mov;
- radio;
- suab nrov nrov nrog cov suab nrov, video amplifier, scanner, deflection system thiab kinescope.
Type of TVs
Los ntawm kev ua haujlwm:
- Smart. Kev siv Internet, media player thiab browser.
- 3D. Tsis txhawb Internet. Lawv tsuas muaj 3D imaging technology.
- Universal. Symbiosis ntawm Smart qauv thiab 3D TVs.
Nyob ntawm lub teeb liab tau txais:
- Analogue. Teb rau kev cuam tshuam, tsis zoo.
- Digital. Zoo dua, kis tau tus mob ntawm cable los yog satellite.
Zoo:
- CRT - TVs nrog cathode ray raj. Hais txog analog technology. Tam sim no kev coj ncaj ncees thiabtechnically dhau lawm. Lawv muaj cov duab convex (tab sis kuj muaj cov tiaj tus), uas distors cov duab.
- Projection - ua cov duab rau hauv cov duab matte. Lawv muab cov suab zoo heev thiab cov kab pheeb ces kaum loj. RPTV thev naus laus zis muaj qhov projector, npo, suab kaw lus thiab tswj vaj huam sib luag.
- Pab vaj huam sib luag.
- Nkauj.
- Nrog lub vijtsam hloov pauv.
Vaj huam sib luag yog muab faib ua peb hom:
- LCD lossis HDD. Cov no yog LCD-TVs, qhov twg daim duab muaj ntau lab pixels, thaum cov kua muaju xa tawm lub teeb los ntawm cov teeb. Kev siv hluav taws xob tsawg, kev tsim cov xim zoo nkauj. Kev pab lub neej - los ntawm 50 mus rau 100 txhiab teev.
- Plasma. Ib qho screen ntawm cov hlwb uas muaj cov pa roj. Tam sim no tsim ib qho hluav taws xob, thiab lub xov tooj ntawm tes pib ci. Kev siv hluav taws xob ntau dua nrog kev nce kab pheeb ces kaum thiab qis dua qhov ci. Kev pab lub neej - 100 txhiab teev.
- OLED. Cov cuab yeej technology pib hauv 2012. Lub matrix uas muaj diodes xa cov xim dub zoo, muaj qhov ci zoo dua thiab qhov sib txawv vim nws tus kheej-emitting lub teeb los ntawm diodes. Lawv kim heev. Lub tuam txhab tseem ceeb tsim cov TVs yog Samsung thiab LG. Kev pab lub neej - 10 txhiab teev.
Projector
Ntau tus neeg txaus siab rau lo lus nug: puas tuaj yeem siv lub projector hloov TV? Thawj qhov projection ntaus ntawv tau tshwm sim nyob rau hauv 17th thiab 18th centuries. Nyob rau hauv lub xyoo pua 19th, cov kwv tij Lumiere tsim lub Kinetoscope. Lawv tshwj xeeb tshaj yog nyob rau hauv cov chaw xws li xinesmas thiab hauv tsev rau kev saib yeeb yaj kiab.
Los ntawm lub npe "magic lantern" rau multimedia projectors, thiab ntxiv rau, DLP projectors los ntawm InFocus thiab LSD, peb tuaj yeem pom cov duab meej thiab muaj yeeb yuj. Nws tseem tuaj yeem txuas nrog lwm lub cuab yeej los tso saib cov duab los ntawm lub projector. Lub projector yog ib qho khoom siv kho qhov muag uas qhia cov duab ntawm cov khoom tiaj tus.
Type of projectors
- Slide projectors, lossis kev xaiv swb - lawv tau siv thaum tsim nyog los tso saib cov duab zoo li qub, xws li kev nthuav qhia.
- Npis Sov - rau kev nthuav tawm cov haujlwm tsis zoo xws li phau ntawv, ntawv xov xwm thiab duab, nrog rau 3D qauv.
- Odoscopes - lawv tuaj yeem siv los tshuaj xyuas cov pob tshab tshwj xeeb.
- Multimedia projectors - ua ib daim duab rau ntawm lub vijtsam loj. Muaj daim duab zoo, haum rau txhua yam.
- Pocket.
- Ultra-portable.
- Portable.
- Stationary.
Ib lub projector hloov lub TV yuav haum rau cov neeg nyiam hnab tshos projectors.
Zoo thiab qhov tsis zoo ntawm TV
cov ntsiab lus zoo:
- Habit and trust in the technology, yooj yim siv.
- Qhov ntau yam tau txhim kho tas li.
- Cov technologies tshiab tau nthuav tawm kom pom tseeb dua.
- Tus nqi dav, ntau yam qauv.
- Cov duab ruaj khov hauv txhua lub teeb, ci ntsa iab, sib piv, xim.
- Nco ntsoov npaj rauua haujlwm.
- Tag nrho hauv ib qho. Raws li lub TV ntse thiab Internet, ntau qhov chaw nres nkoj rau lwm cov khoom siv ntxiv.
- Txoj TV rau ntawm phab ntsa yog qhov yooj yim heev.
Cons:
- Nyob zoo. Lub TV tsis muaj kev txav mus los. Tau kawg, koj tuaj yeem nqa lub TV me me, tab sis qhov no siv tsawg.
- daim duab 3D tsuas pom muaj nyob hauv qee cov qauv, thiab cov qauv duab tsuas yog hauv 2D hom.
- Daim duab loj yog nyob ntawm kab pheeb ces kaum ntawm lub vijtsam thiab hloov tsis tau nce lossis nqis.
- Qhov siab dua kab pheeb ces kaum - tus nqi siab dua ntawm tus qauv. Yog tias koj piv lub projector thiab TV yog tias koj xav tau kab pheeb ces kaum ntau tshaj 2 meters, ces tus nqi yuav yog qhov tseem ceeb.
- Kev pom ntev ua rau pom kev tsis pom kev los ntawm kev tsom lub qhov muag ntawm qhov chaw hluav taws xob ntau dua li qhov pom kev pom.
Ntawm thiab qhov tsis zoo ntawm lub projectors
Ua ntej, lawv txawv ntawm cov duab tso zis thev naus laus zis. Muaj peb lub thev naus laus zis hauv tag nrho:
- DLP - yog tus thawj coj ntawm cov duab zoo, kev tsim tawm xim thiab tus nqi. Tab sis thaum yuav cov qauv pheej yig nrog ib nti, daim duab zoo yog qhov phem dua. Cov khoom cuav tuaj yeem tshwm sim: ntawm ntug ntawm "tus zaj sawv".
- LCD - siv cov kua siv lead ua kua matrices nrog lub lens kaw lus. Rov tsim cov duab zoo. Tus nqi sib tw qhov zoo, tab sis poob qis ntawm DLP.
- LCoS yog hybrid ntawm DLP thiab LCD. Lawv kim heev, tab sis tib lub sijhawm lawv muaj peev xwm sib tw nrog cov TV niaj hnub rau qhov chaw hauv koj chav tsev.
- CRT - zoo heevdluab thiab guarantee ntawm kev pab lub neej ntev. Txawm li cas los xij, muaj qhov tsis zoo, nrog rau qhov tsis muaj zog ntawm lub teeb. Yooj yim rau nruab, kim heev.
txiaj ntsig:
- Xaiv qhov pom qhov loj ntawm cov duab yam tsis muaj qhov pom tseeb.
- Yuav luag qhov muag tsawg kawg nkaus.
- kev mus los txaus.
- Nyob qhov chaw me me.
- qis dua.
- Txhim kho thev naus laus zis uas ua rau muaj txiaj ntsig zoo dua thiab tus nqi qis dua.
Muaj qee qhov teeb meem yog tias koj xav yuav lub projector hloov TV, tab sis tsis txhob hnov qab qhov zoo.
Flaws:
- Yuav tsum tau teeb tsa ib theem teeb pom kev zoo. Txwv tsis pub, yuav muaj qhov sib piv tsis zoo.
- saib TV hauv qhov tsaus ntuj tsis yog rau txhua tus.
- Yog daim vis dis aus tau ua tsis zoo, ces txhua qhov kev tsis txaus ntseeg tuaj yeem pom.
- Xav tau lub vijtsam npo lossis phab ntsa tiaj tiaj dawb, lub vijtsam loj rau lub projector.
- Kev yuav khoom ntawm cov hais lus thiab lwm yam khoom siv raws li xav tau.
- Hloov lub teeb.
Teeb tsa TV
TV txoj kev teeb tsa:
- Tsab rau ntawm phab ntsa. Mounting rau TV ntawm phab ntsa yog nqa tawm siv lub bracket, koj tuaj yeem tso nws raws li koj nyiam.
- Plag ntawm sawv.
- Kev koom ua ke rau hauv phab ntsa lossis kho kom zoo nkauj.
Nruab qhov projector
- Nrhiav qhov chaw tiaj tus lossis yuav ib qho screen projection.
- Muas tus hais lus kom tau suab.
- Thov tso lub projector kom cov duab ntawm kojzoo, tab sis feem ntau koj xav tau ob peb meters, yog li koj yuav tsum muab kaum meters rau phab ntsa.
- Dai lub projector ntawm lub qab nthab. Yog li, nws yuav nyob rau hauv ib qho chaw ruaj khov, tsis cuam tshuam nrog cov neeg nyob hauv tsev thiab nkag mus rau lub qab nthab yog tias muaj cov qauv txav mus los.
Zoo kawg
Peb piv lub projector thiab TV. Lub TV tau paub ntau dua thiab yooj yim rau nruab, thiab lub projector yog qhov tsim nyog rau cov cinephiles uas yuav tsum tau rub tawm lossis yuav Blu-Ray disc, txwv tsis pub qhov zoo yuav tsis zoo li nws yuav tsum yog. Tsis txhob hnov qab cov specifications ntawm lub projector. Lub projector twg xaiv rau lub tsev tsis yog TV? Nws yuav tsum tau siv DLP thev naus laus zis, saib qhov loj ntawm cov duab kom haum rau lub vijtsam raws nraim.
