Los ntawm cov hlab mus rau ntshav, muaj ntau cov qauv hauv TV ntawm cov khoom txee dua li cov ntaub ntawv xov xwm. Ua ntej tshawb nrhiav analog piv rau cov digital, SDTV, HDTV, thiab EDTV, saib hom TV hauv cov neeg siv khoom lag luam niaj hnub no.
Direct View
Tseem hu ua tube TV, qhov no yog qhov ze tshaj plaws rau tus me nyuam boomers saib thaum menyuam yaus. Lub raj cathode-duab tshav, uas yog lub tshuab nqus tsev tshwj xeeb, muaj zog rau nws. CRTs tuaj nyob rau hauv tag nrho cov duab thiab loj txog li 40 ntiv tes. Lawv muaj cov duab zoo heev los ntawm txhua lub ces kaum, qib dub zoo tshaj plaws, thiab tus nqi qis dua li lwm lub TV. Txawm hais tias lawv loj heev, hnyav tsim, tube TVs tau ntev thiab qhuas rau kev khaws cov duab zoo thoob plaws hauv nws lub neej, uas tuaj yeem ua tau ntau xyoo.
kab hauv qab
Texas Instruments tau tsim Digital Light Processing hauv xyoo 1987. Lub npe rau nws lub peev xwm ua lub teeb digitally nrog kev pab los ntawm ib qho khoom siv hluav taws xob hu ua Digital Micromirror Device, ntau dua 1 lab daim iav tsim DMD nti. Qhov loj ntawm txhua daim iav yog tsawg dua ib feem tsib ntawm qhov dav ntawm tib neeg cov plaub hau. Tam sim no, ntau tshaj li tsib caug manufacturers tsim tsawg kawg ib tug qauv ntawm ib tug DLP TV. DLP's tuaj nyob rau hauv rear thiab pem hauv ntej projection. Lawv tsis raug cuam tshuam rau qhov kub hnyiab, tab sis qee tus neeg pom qhov teeb meem hu ua Rainbow Effect.
Kua Crystal Display
Txawm hais tias nws yog lub vaj huam sib luag tiaj tus lossis qhov projection tom qab, muaj ntau qhov kev xaiv ntawm kev ua lag luam rau Liquid Crystal Display TVs. Cov vaj huam sib luag tiaj tiaj yog nyob deb ntawm LCD TV nrov tshaj plaws vim tias lawv nyias, siv lub teeb, yooj yim rau cov neeg uas xav siv lawv lub LCD ua TV thiab lub computer saib. LCDs tsis raug rau hlawv-hauv. LCDs nrog lub sij hawm teb qeeb tuaj yeem ua rau pom cov nyhuv dab, thaum lwm lub LCDs tso saib cov nyhuv ntawm lub qhov rooj. Nws yog ib qho tseem ceeb kom pom lub LCD saib ua ntej yuav khoom kom pom tias lub vijtsam ua tau raws li koj xav tau.
Plasma Display Panels
Plasma yog txuam nrog cov khoom siv hluav taws xob hauv tsev siab. Tag nrho cov plasma TVs tuaj nyob rau hauv ib lub vaj huam sib luag tiaj tiaj. Feem ntau yog nyob rau hauv 40-nti mus rau 49-nti ntau lossis loj dua. Lawv yog tus nqi sib tw rau LCD vaj huam sib luag vaj huam sib luag thiab muaj cov duab zoo nkauj uas ua rau koj nyob nruab nrab ntawm qhov kev txiav txim. Plasmas hnyav dua li LCDs, tab sis tsis muaj dab tsi ntxiv kev txhawb nqa tswj tsis tau. Lawv raug kub hnyiab-hauv, tab sis txawm tias cov lus xaiv rau qhov tsis sib xws, cov roj hluav taws xob uas lub zog ntawm daim duab tsis tuaj yeem rov qab tau. Thaum lawv tseem hluas dhau los ntsuas qhov tseeb, plasma TV yuav tsum nyob qhov twg los ntawm 10 txog 20 xyoo.
