Plasma vs LCD vs LED vs DLP
Kaya mukufufuza za TV yatsopano kapena kuyang'ana zitsanzo zatsopano m'masitolo , mudzapeza njira zamakono zosiyana siyana zomwe opanga amagwiritsa ntchito masiku ano a HDTV. Onse a iwo ali ndi cholinga chomwecho - chokondweretsa chithunzi cha zithunzi - koma "chophimba" chilichonse chiri ndi makhalidwe abwino. Izi ndi zoyenera kudziwa pamene mukugula TV yatsopano . Pakati pafukufuku wanu, kumbukirani kuti ndi malo omwe akupita, osati ulendo; chithunzi chabwino cha TV ndi chithunzi chabwino cha TV ngakhale titagwiritsa ntchito luso lanji.
Ma TV a Plasma
Plasma ndiyo njira yoyamba yopanga pulogalamu yamtundu wa TV yomwe ingathe kubereka zithunzi zabwino pamapikisano apanyumba apanyumba. "Ngakhale kuti akatswiri ambiri amati plasma imapanga chithunzithunzi chabwino kwambiri, ma TV a plasma sizinapangidwenso chifukwa cha kuchepa kwa msika pachithunzi ya ma TV a LCD.
Ma TV a LCD
Ngakhale zinatenga kanthawi kwa LCD (liquid crystal display) kuti agwirizane ndi kuvomereza msika ndi mitengo, izi ndizo zowonjezereka kwambiri zamakono a TV ndi zomwe zimapezeka m'maganizo osiyanasiyana, mausinkhu ndi zosankha zamakono. Chifukwa cha kukula kwake, chithunzithunzi cha zithunzi chimasiyana kwambiri, nthawi zina ngakhale pakati pa mitundu yosiyanasiyana ya mtundu womwewo.
LCD Ubwino
Ma TV a LCD apangidwa kuti athetse kuwala kwina, kutanthauza kuti zojambula zawo nthawi zambiri sizimangoganizira komanso zochokera pang'onopang'ono nthawi zambiri zimakhala zopambana kuposa zamakono ena. Ma TV a LCD amachitanso kutentha pang'ono ndipo amadya magetsi pang'ono. Mafilimu a ELCD sangapezeke pawonekedwe la "kutentha" ndipo ndizosankha pamene zithunzi zowoneka ndi gawo lalikulu la zofunikira zanu. Potsirizira pake, LCD idzakupatsani mwayi waukulu kwambiri wa mitengo ndi masewero a pulogalamu.
Zovuta za LCD
Zambiri kuposa matekinoloje a TV, ma TV a LCD amasiyana kwambiri ndi khalidwe la zithunzi. Izi ndi zotsatira za chilengedwe cha zitsanzo zambiri zomwe zikupezeka, komanso chifukwa LCD ndi ndalama zopanga ndalama ndipo opanga ambiri amayesetsa kugunda malo otsika mtengo, makamaka pazithunzi zam'nyumba. Vuto lalikulu la luso la zamakono ndi zithunzi zofulumira; pa ma seti ena, mukhoza kuona njira ya pixel kapena kuyang'ana "blocky" mukuyenda mofulumira. Okonza amayesa kuthetsa izi ndi zowonjezereka zowonjezera, nthawi zina bwino, nthawizina zochepa. Ma TV a LCD amakhalanso osasintha mtundu wakuda komanso matekinoloje ena, zomwe zimabweretsa zochepa komanso zosiyana kusiyana ndi momwe mungapezere kwina. Chotsatira, chithunzi pa ma TV ambiri a LCD chikuwoneka mosiyana pamene muyang'ana kuchokera kutali kwambiri.
Ma TV a LED
LED (kuwala kotulutsa mpweya) Ma TV ali kwenikweni TV za LCD ndi njira yopangira kuwala. Chiwonetsero chilichonse cha LCD chiyenera kukhala ndi ma pixelisi "atayima" kuti apange zithunzi. Pa malo ochiritsira a LCD, nyali ya fulorosenti kumbuyo kwayikidwapo, koma pa ma LED, magetsi aang'ono ndi opambana kwambiri a kuwala kwa LED m'malo mwake. Pali mitundu iwiri ya ma TV. Mmodzi wa iwo akutchedwa LED "kuyatsa magetsi" - mmalo mwa nyali yaikulu kumbuyo kwa pixels, nyali zazing'ono za LED pambali pa chinsalu zimagwiritsidwa ntchito. Iyi ndi njira yotsika mtengo ya LED. Mu njira yowonjezera (ndi yotsika mtengo) ya "dera", njira yowonjezera ya ma LED imaikidwa kumbuyo kwa chinsalu ndikuloleza mapikseli apamtunda "apansi" kuti athetsedwe kapena kuchotsedwa, malingana ndi zosowa za panthawi yomwe mukuyang'ana. Izi zimabweretsa kusiyana kwakukulu.
Malangizo a LED
Chifukwa chakuti kuwala kwa LED kuli kowala komanso kosavuta kuposa kuunikira kwa firiorescent, chithunzi pa TV ya "pops" yowonjezera kuposa ku LCD yodabwitsa, mosiyana kwambiri ndi tsatanetsatane, nthawi zambiri imayandikira khalidwe la zithunzi la maselo abwino a plasma. Izi ndizowona makamaka pa malo otentha a LED, omwe amatchedwanso "ma LED". Magetsi a LED omwe amagwiritsira ntchito zipangizo zamakono zopangira magetsi angapangidwe kwambiri. Pokhala bwino pa msinkhu wokongola, kupambana uku sikungakhudze khalidwe la chithunzi. Mitundu yonse ya TV ya TV ndi yowonjezera mphamvu kuposa plasma kapena LCD TV yowonjezera, zomwe zimatanthauza ndalama zamagetsi zamtundu komanso nyumba zowonjezera.
Zojambula za LED
Ma TV a LED angakhale okwera mtengo kuposa ma TV a LCD ndipo pali zisankho zochepa pa TV ya TV; simudzapeza makina ambiri kapena masikrini osankhidwa. Komanso, popeza LED ndiyo njira yatsopano ya luso, kuyang'ana mbali ndilo vuto; Mtengo wa zithunzi ungasinthe ngati mutakhala pamtunda wambiri mpaka TV.
Ma TV a DLP
Ngakhale ambiri a msika atembenukira ku TV zowonongeka, opanga angapo akupitiriza kupereka makina akuluakulu a "zowonekera kumbuyo" pa TV yomwe imagwiritsidwa ntchito ndi injini ya Digital Light Processing (DLP) yopangidwa ndi Texas Instruments kumayambiriro kwa zaka za m'ma 1990. Iyi ndiyo njira yamakono yomwe imagwiritsidwa ntchito pa digito m'maseĊµera a kanema ndipo imagwiritsa ntchito chipangizo chokhala ndi zipangizo zozizwitsa zomwe zimasonyeza kuwala (ndi zithunzi) pawunivesi pogwiritsa ntchito zosowa zenizeni za pulogalamuyi. Ngakhale ma TV awa sali okongola, sali ozama ngati ma TV a analogulo akale ndipo amabwera muzithunzi zazikulu zojambula.
DLP Zopindulitsa
DLP ndi makina okhwima okhwima omwe ali ndi khalidwe lapamwamba la zithunzi. Imachita bwino mu zipinda zowala kapena zakuda ndipo ili ndi makhalidwe abwino owonera. Kuphatikiza pa khalidwe la chithunzithunzi, mwayi waukulu wa DLP ndi phokoso la buck - mungapeze chithunzi chachikulu cha DLP pang'onopang'ono ndalama zowonongeka mofanana ndi kukula kwake kofanana, ndipo ngati zili zazikulu kwambiri (masentimita 60 ndi kupitirira), chifukwa cha ndalama zambiri zochepa. Ma TV a DLP amapezekanso m'mawonekedwe a 3D.
DLP Zovuta
Ma TV a DLP satenga. Mudzasowa malo osungirako (kapena malo osungirako) a DLP TV, koma ngati muli ndi chipinda chake ndipo simukumbukira kuti TV yanu siilibe phokoso, izi sizovuta.