Kodi TV Yoyamba Ndi Yotani?
Pakhala pali zowonjezereka komanso zosokonezeka pafupi ndi malonda a "TV". Ngakhale akuluakulu ogwirizana ndi anthu ogulitsa malonda omwe ayenera kudziwa bwino akufotokozera mwatsatanetsatane zomwe Televizioni yowunikira ndi yowona makasitomala awo.
Kuti muwongolere, ndizofunikira kuzindikira kuti mawonekedwe a LED akutanthauza mawonekedwe a backlight omwe amagwiritsidwa ntchito mu ma televizioni ambiri a LCD, osati zipsera zomwe zimapanga chithunzicho.
Zipangizo za LCD ndi pixelisi sizimapanga kuwala kwawo. Kuti LCD televiziyoni ipange chithunzi chowonekera pa kanema wa pa TV, ma pixel a LCD ayenera "kubwezeretsedwa". Kuti mudziwe zambiri zokhudza njira yowunikira maulendo yofunikira pa LCD Televisions, onani nkhani yanga: Kufufuza CRT, Plasma, LCD, ndi DLP Television Technologies .
Pakati pawo, ma TV omwe ali ndi ma TV ali adakali a LCD. Kusiyanitsa pakati pa awiri, monga tanenera pamwambapa, ndiwomwe mawonekedwe a backlight akugwiritsidwira ntchito. Makanema ambiri a LCD amagwiritsa ntchito zizindikiro zowonjezera ma LED kusiyana ndi zozizira zamtundu wa fulorosenti kotero zikutanthauza kuwala kwa TV mu malonda a malonda.
Kuti zikhale zolondola, ma TV a LED ayenera makamaka kulembedwa ndi kulengeza monga LCD / LED kapena LED / LCD TV.
Momwe Zipangizo Zamakono Zimagwiritsidwira Ntchito Mu Ma TV A LCD
Pakali pano njira ziwiri zikuluzikulu zomwe zimayambitsirako kuwala kwa LED zikugwiritsidwa ntchito pa televizioni zamtundu wa LCD .
Kuwala kwa LED Kuwala
Mtundu wina wa kuwunika kwa LED ukutchulidwa ngati Edge Lighting .
Mwa njira iyi, ma LED angapo amaikidwa pambali pambali ya panel LCD. Kenaka kuwala kumagawidwa pansalu pogwiritsira ntchito "zofalitsa zowala" kapena "zowunikira". Ubwino wa njira iyi ndi kuti LED / LCD TV ikhoza kukhala yopyapyala kwambiri. Kumbali ina, kuipa kwa kuunikira kwa Edge ndikuti mdima wakuda sali wozama ndipo m'mphepete mwa chiwonetsero muli ndi chizoloŵezi chowala kuposa malo apakati pa chinsalu.
Komanso, nthawi zina mumatha kuona zomwe zimatchedwa "kuunika" m'makona a chinsalu, ndi / kapena "ziphuphu zoyera" zomwe zimabalalika pansalu. Poyang'ana masana kapena kuwonetsera zam'kati, zotsatirazi siziwoneka - Komabe, zimatha kuonekera pazigawo zosiyanasiyana, pamene usiku kapena masewera amdima pulogalamu ya TV kapena mafilimu amawonedwa.
Kuunikira Kwakuunikira kwa LED
Mtundu wina wa kuwunika kwa LED ukutchulidwa monga Direct kapena Full-Array (omwe amatchulidwanso nthawi zina ngati LED Yoyera) .
Mwa njira iyi, mizere yambiri ya ma LED imayikidwa kumbuyo kwa nsalu yonse. Chinthu chachikulu chomwe chimagwiritsidwa ntchito poyang'ana kumbuyo ndikuti mosiyana ndi kuunikira, njira yowongoka kapena yowonjezera, amapereka zambiri, yunifolomu, mdima wakuda pazenera lonse.
Ubwino winanso ndi wakuti malowa angagwiritse ntchito "dimming local" (ngati agwiritsidwa ntchito ndi wopanga). Kukonzekera Kwadongosolo Kwathunthu pamodzi ndi Kutuluka Kwawo Kumatchedwanso FALD .
Ngati LED / LCD TV imatchedwa Direct Lit, izi zikutanthawuza kuti siziphatikizapo dimming komweko, pokhapokha pali zofotokozera zina zowonjezera. Ngati TV / LCD TV imaphatikizapo kuchepa kwaderalo, kawirikawiri imatchedwa "Full Backraylit Set Set" kapena ikufotokozedwa ngati Full Array ndi Dimming Local.
Ngati dera lakale likugwiritsidwa ntchito, izi zikutanthauza kuti magulu a ma LED akhoza kutsegulidwa komanso osasunthika pamadera ena a chinsalu (nthawi zina amatchedwa zones), motero amapereka mphamvu yowonjezera kuwala ndi mdima m'malo onsewa, malingana ndi gwero zinthu zowonetsedwa.
Kusiyananso kwina pazowonjezera kumbuyo kwina ndi dera lakuda ndi Sony Blacklight Master Drive, yomwe inayambira pa chiwerengero chochepa cha ma TV mu 2016.
Kusiyana kumeneku kumagwiritsa ntchito njira zonse monga maziko, koma mmalo mwa malo omwe amagwiritsidwa ntchito pozungulira (magulu a pixel), kumbuyo kwa pixel iliyonse kungathe kutembenuzidwa mosalekeza, zomwe zimapangitsa kuunika kwakukulu kwambiri ndi kuwonetsera zosiyana kwazomwe zimakhala zowala komanso Zinthu zakuda - monga kuchotseratu magazi oyera kuchokera ku zinthu zowala zakuda.
Kuchokera Kwawo M'madera a LED Edge-Lit LCD TV
Komabe, ziyeneranso kutchulidwa kuti ma TV / LCD ma TV amawonanso kuti ali ndi "dimming local". Samsung imagwiritsa ntchito mawu akuti micro-dimming, Sony imatanthauzira momwe angagwiritsire ntchito njirayi monga Dynamic LED (pa ma TV omwe alibe blacklight master drive), pamene Sharp imatanthawuza momwe iwo amawonera ngati Aquos Dimming. Malinga ndi wopanga mawu omwe amagwiritsidwa ntchito angasinthe. Komabe, luso lamagwiritsidwe ntchito limaphatikizapo kusiyana kwa kuwala komwe kumagwiritsidwa ntchito pogwiritsa ntchito kuwala kowala ndi zowoneka motsogoleredwa motere kusiyana ndi njira yeniyeni yowonongeka yomwe ikugwiritsidwa ntchito mu Full Array kapena Direct-Lit LED / LCD TV.
Ngati mukuganiza kugula LED / LCD Television, fufuzani mtundu ndi mafano omwe akugwiritsa ntchito Edge kapena Full Array njira ndikuyang'ana mtundu uliwonse pamene mupita kukagula kuti muwone mtundu wanji wa kuwunikira kwa LED kukuwoneka bwino kwa inu .
Ma TV / LCD TV ndi Standard LCD TV
Popeza kuti ma LED ali opangidwa mosiyana ndi machitidwe ofanana ndi mawonekedwe a backlight, izi zimatanthawuza kuti LED yatsopano yakhazikitsira maselo a LCD amapereka kusiyana kotere ndi maselo a LCD:
- Kugwiritsa ntchito mphamvu zochepa.
- Palibe Mercury imene imagwiritsidwa ntchito m'njira zina za LCD.
- Kuwonjezera kokongola kwa mtundu.
- Mu TV / LCD ma TV pogwiritsa ntchito njira yowunikira yowunikira, pali zochepa pang'ono kapena zosavuta muzithunzi zakuda. Izi zimapangitsa kuti azikhala akuda kwambiri kuposa makanema a LCD omwe amawoneka ndi magetsi .
- Ma TV a LCD omwe amagwiritsira ntchito Full Array kapena Direct LED kuyang'anitsitsa ndi owopsa kuposa LCD TV omwe amagwiritsa ntchito Edge-anayatsa LED kuwala gwero. Mwa kuyankhula kwina, ma TV / LCD ma TV omwe amagwiritsira ntchito njira ya Edge yowunika kumbuyo angapangidwe kukhala ochepa kuposa ma LCD onse ndi Full Array LED / LCD televisions.
TV yokhayo yokha ya TV (yosasokonezedwa ndi ma TV OLED omwe ndi teknoloji yosiyana) ndizo zomwe mumaziwona m'maseŵera, mabwalo, zochitika zina zazikulu ndi zikwangwani za "high-res". (Onani Chitsanzo).
Kuunika kwawunikira kwa LED kukuyimira patsogolo pa zamagetsi, makamaka pobweretsa TV za LCD pafupi ndi Ma TV Plasma pamtundu wakuda, ndipo panthawi imodzimodziyo, kupanga ngakhale zooneka bwino za LCD TV zotheka.
Ma LED ndi Dotum Dots
Njira ina yamakono yomwe ikuphatikizidwa mu kuchuluka kwa ma TV / LCD TV ndi Quantum Dots. Samsung imatchula kuti Quantum Zokonzeka LED / LCD TV monga QLED TV, omwe ambiri amasokoneza ndi TV OLED - Komabe, musapusitsidwe, matekinoloje awiri si osiyana koma zosagwirizana.
Mwachidule, Quantum Dots ndi anthu opangidwa ndi nanoparticles omwe amaikidwa pakati pa Edge Lit kapena Direct / Full Adray LED Kuwala ndi LCD Panel. Dothi lamtengo wapatali lopangidwira kupanga maonekedwe a mtundu kuposa momwe TV / LCD TV ingawonetsere popanda iwo. Kuti mudziwe zambiri za momwe Mawerengero Ambiri Amapangidwira, komanso momwe, ndichifukwa chiyani, amagwiritsidwa ntchito pa TV / LCD TV, muwone nkhani yanga Quantum Dots - Kupititsa patsogolo LCD TV Performance .
Kugwiritsa ntchito kwa LED mu Pulojekiti ya DLP Video
Kuwala kwa LED kumapanganso njira yopita ku DLP kanema . Pankhaniyi, LED imapereka chitsimikizo m'malo mwa nyali yowonetsera. Mu pulojekiti ya DLP, chithunzichi chimatulutsidwa mu mawonekedwe a pamwamba pa chipangizo cha DLP, momwe pixel iliyonse imayiranso pagalasi. Gwero la kuwala (pakadali pano gwero la kuwala komwe limapangidwa ndi zinthu zofiira, zobiriwira, ndi zapuluu) zimatulutsa kuwala kwa micromirror ya DLP Chip ndipo imawonetsedwa pazenera.
Kugwiritsa ntchito gwero la kuwala kwa DLP pulojekiti yamagetsi kumathetsa kugwiritsa ntchito gudumu la mtundu. Izi zimakuthandizani kuti muwone chithunzi pazenera popanda kuwonetsetsa kwa DLP (matalala aang'ono omwe nthawi zina amawoneka pamaso a oyang'ana pamutu). Ndiponso, popeza magetsi opangira kuwala kwa LED angapangidwe kukhala ofooka kwambiri, pulogalamu yatsopano yowonetsera kanema, yotchedwa kuwala kwa LED ku DLP video projectors imachotsa kugwiritsa ntchito gudumu la mtundu. Izi zimakuthandizani kuti muwone chithunzi pazenera popanda kuwonetsetsa kwa DLP (matalala aang'ono omwe nthawi zina amawoneka pamaso a oyang'ana pamutu). Ndiponso, popeza magetsi opangira kuwala kwa LED angapangidwe pang'onopang'ono, mtundu watsopano wamakono opanga mavidiyo, wotchedwa Pico projector watchuka.
Kugwiritsa Ntchito pa Ma TV - Lero ndi Tsogolo
Popeza kutha kwa ma TV a Plasma, ma TV / LCD TV tsopano ndi mawonekedwe akuluakulu a TV omwe amapezeka kwa ogula. Ma TV OLED, omwe amagwiritsanso ntchito zipangizo zamakono, amapezekanso, koma akugawidwa pang'ono (Monga mu 2017, LG ndi Sony ndiwo okhawo opanga ma TV omwe amalengeza TV OLED ku US Market), ndipo ndi okwera mtengo kuposa momwe amachitira TV / LCD. Ndi kukonzanso kwa zinthu, monga dera lakuda ndi Quantum Dots, ndizomveka kunena kuti tsogolo la TV / LCD TV ndi lowala kwambiri.
Kuti mumve zambiri zokhudza teknoloji ya LED yomwe ikugwiritsidwa ntchito mu TV za LCD, onani kafukufuku wochokera ku CDRinfo.