Kev Hloov Pauv ntawm Kev Tsim Khoom Siv TV Flat Screen
Kev tshaj tawm hauv TV tau dhau los ua ib feem tseem ceeb ntawm lub neej niaj hnub no, muab kev lom zem, cov ntaub ntawv, thiab kev kawm hauv hom ntawv txaus nyiam. Txij li thaum John Logie Baird tau tsim thawj lub TV hauv xyoo 1920, thev naus laus zis hauv TV tau nce qib sai heev. Ib qho ntawm cov kev hloov pauv tseem ceeb tshaj plaws hauv keeb kwm TV yog kev hloov pauv ntawm cathode ray tube (CRT) cov ntxaij vab tshaus mus rau cov ntxaij vab tshaus tiaj tus. Tsab xov xwm no yuav tshuaj xyuas qhov kev hloov pauv ntawm cov thev naus laus zis tsim cov TV tiaj tus, txheeb xyuas cov kev hloov pauv tseem ceeb, thiab kwv yees nws yav tom ntej.
Kev Tsim Kho CRT Television: Lub Caij Nyoog Thawj Zaug
Cov TV uas tsim tawm ntau thawj zaug yog CRT (Crystal Resonance Resonance). Cov TV no siv cov raj nqus tsev los tso cov hluav taws xob rau ntawm lub vijtsam uas muaj phosphor, uas tom qab ntawd tsim ib daim duab. Txawm hais tias CRT TV tau hloov pauv kev lom zem hauv tsev, lawv muaj ntau yam kev txwv tseem ceeb, suav nrog lawv qhov loj thiab qhov hnyav uas tsis yooj yim siv, nrog rau lawv siv hluav taws xob ntau.
Kev Hloov Mus Rau Cov Npoo Tiaj: LCD thiab Plasma
Cov Khoom Siv Crystal Ua Kua (LCD)
Thaum xyoo 1990s lig thiab xyoo 2000s thaum ntxov, cov TV tiaj tiaj tau pib tshwm sim, hloov pauv qhov xwm txheej ntawm thev naus laus zis TV. Cov Khoom Siv Crystal Display (LCD) yog cov thev naus laus zis uas ua rau muaj kev hloov pauv no. Cov TV LCD ua haujlwm los ntawm kev siv cov kua siv lead ua kua uas tau teeb tsa ntawm ob txheej iav lossis yas. Thaum siv hluav taws xob, cov kua siv lead ua no hloov lawv qhov kev taw qhia kom tswj tau qhov kaj los ntawm lub teeb backlight hla dhau lawv, tsim cov duab.
Qhov zoo tshaj plaws ntawm LCD TV yog lawv qhov nyias nyias, uas ua rau cov qauv zoo nkauj dua thiab zoo nkauj dua. Ntxiv mus, LCD TV sib dua thiab siv hluav taws xob tsawg dua li CRT TV. Qhov tsis zoo thaum xub thawj yog qhov pom tsawg thiab xim tsis zoo, txawm hais tias cov no tau zoo dua qub nrog kev txhim kho ntawm IPS (In-Plane Switching) vaj huam sib luag thiab lwm yam.
Vaj Huam Sib Luag Plasma (PDP)
Nrog rau LCDs, Plasma Display Panel (PDP) thev naus laus zis kuj tau tshwm sim los ua lwm txoj hauv kev rau cov TV tiaj tiaj. Cov TV Plasma siv cov roj ionized los tsim cov photons teeb thaum siv hluav taws xob. Cov thev naus laus zis no tso cai rau cov xim nplua nuj dua thiab cov ces kaum pom dav dua li LCDs.
Txawm li cas los xij, cov TV plasma muaj ntau qhov tsis zoo, suav nrog kev siv hluav taws xob ntau thiab qhov muaj peev xwm hlawv, qhov twg cov duab tsis hloov pauv tuaj yeem tawm cov duab ntxoov ntxoo tas mus li ntawm qhov screen. Txawm hais tias nrov heev thaum ntxov xyoo 2000s, kev txhim kho ntxiv hauv LCD thev naus laus zis thiab kev tshwm sim ntawm OLED (Organic Light Emitting Diode) ua rau kev poob qis hauv kev nyiam ntawm cov TV plasma.
OLED: Kev Hloov Pauv Tshiab hauv Cov Npoo Tiaj
OLED yog ib qho thev naus laus zis tshiab uas muaj vaj huam sib luag tiaj tiaj thiab tau raug qhuas tias yog kev hloov pauv hauv kev zoo ntawm daim duab thiab kev tsim lub vijtsam TV. Tsis zoo li LCDs, uas xav tau lub teeb backlight, txhua pixel ntawm OLED zaub tsim nws lub teeb thaum siv hluav taws xob. Qhov no tso cai rau OLEDs tsim cov xim dub tob dua, qhov sib piv siab dua, thiab lub kaum sab xis dav dua.
Cov TV OLED muaj qhov zoo ntawm nws nyias heev, yoog tau yooj yim, thiab tsis hnyav. Lawv kuj muaj lub sijhawm teb sai dua thiab siv hluav taws xob tau zoo dua piv rau LCD thiab plasma technologies.
QLED thiab Cov Qauv Yav Tom Ntej
Quantum Dot Light Emitting Diode (QLED) yog ib lub tshuab ua zaub tiaj tiaj uas siv cov nanoparticles quantum dot uas ci los ntawm LED backlight. Qhov no tso cai rau QLED tsim cov xim ci dua thiab cov xim spectrum dav dua li cov LCD ib txwm muaj. Cov TV QLED muaj qhov zoo ntawm qhov kaj, tiv taus kev hlawv, thiab zoo ntawm daim duab hauv ntau yam teeb pom kev zoo.
Tau ob peb xyoos dhau los no, cov thev naus laus zis zoo li MicroLED tau tshwm sim, ua ke cov txiaj ntsig ntawm LED nrog qhov nyias thiab ua haujlwm tau zoo ntawm OLED. MicroLED muaj peev xwm rau cov ntxaij vab tshaus loj dua yam tsis muaj kev txi cov duab zoo, nrog rau kev siv hluav taws xob zoo dua thiab lub neej ntev dua.
Kev nce qib hauv kev daws teeb meem ntawm qhov screen
Ntxiv rau kev siv tshuab vaj huam sib luag, kev hloov pauv ntawm qhov kev daws teeb meem ntawm lub vijtsam kuj yog ib qho tseem ceeb ntawm kev nce qib ntawm cov TV tiaj tus. Txij li qhov kev daws teeb meem txheem (SD) mus rau High Definition (HD), Full HD (FHD), 4K Ultra HD, thiab tam sim no 8K, kev nce qib hauv kev daws teeb meem ntawm lub vijtsam muab kev paub txog kev saib ntau dua thiab nkag mus rau hauv lub ntiaj teb.
Kev Sib Txuas thiab Smart TV
Ntxiv rau qhov zoo ntawm daim duab, cov TV niaj hnub no kuj muaj ntau yam kev sib txuas thiab kev ua haujlwm ntawm TV ntse. Kev sib koom ua ke Wi-Fi, Bluetooth, thiab Android-based lossis lwm yam operating system tso cai rau lub TV txuas rau hauv internet, nkag mus rau cov apps streaming, thiab txawm tias tswj lub tsev ntse.
Cov Neeg Siv Khoom thiab Ib puag ncig
Cov thev naus laus zis TV tiaj tiaj tsis yog tsuas yog muab cov txiaj ntsig rau cov neeg siv khoom hauv cov nqe lus ntawm qhov zoo ntawm cov duab thiab cov yam ntxwv xwb, tab sis kuj muab cov txiaj ntsig rau ib puag ncig. Cov TV tiaj tiaj tshiab feem ntau siv hluav taws xob ntau dua li CRT thiab plasma TV. Tsis tas li ntawd, kev nce qib hauv kev tsim khoom siv thiab cov ntaub ntawv tau ua rau cov TV zoo rau ib puag ncig thiab yooj yim dua rau kev rov ua dua tshiab.
Cov Kev Cov nyom thiab Yav Tom Ntej
Txawm hais tias muaj kev vam meej ntau los, kev lag luam TV tiaj tiaj tseem ntsib ntau yam teeb meem. Piv txwv li, cov nqi tsim khoom OLED thiab MicroLED tseem siab heev, ua rau cov neeg siv khoom kim heev. Kev tsim cov khoom siv zoo dua thiab cov txheej txheem tsim khoom pheej yig dua tseem yog qhov tseem ceeb.
Yav tom ntej, peb tuaj yeem cia siab tias yuav muaj ntau yam kev tsim kho tshiab xws li cov ntxaij vab tshaus uas tuaj yeem quav tau thiab pob tshab, uas yuav qhib cov cib fim tshiab hauv kev tsim TV thiab kev ua haujlwm. Kev nce qib ntxiv hauv kev txawj ntse kuj tseem yuav ua rau TV muab kev lom zem uas haum rau tus kheej thiab raws li tus kheej.
Xaus
Kev hloov pauv ntawm thev naus laus zis tsim cov TV tiaj tiaj tau tsim kom muaj kev nce qib tseem ceeb hauv qhov zoo thiab kev yooj yim ntawm kev lom zem hauv tsev. Txij li LCD thiab plasma mus rau OLED thiab QLED, kev tsim kho tshiab txuas ntxiv mus. Txhua lub thev naus laus zis coj nws cov txiaj ntsig thiab kev cov nyom tshwj xeeb, tab sis txhua yam pab txhawb rau kev saib zoo dua thiab lom zem dua. Nrog rau kev nce qib thev naus laus zis txuas ntxiv mus, yav tom ntej ntawm cov TV tiaj tiaj zoo li ci ntsa iab, cog lus tias yuav muaj ntau qhov xav tsis thoob thiab kev nce qib uas yuav txuas ntxiv ua rau peb xav tsis thoob.
