Edge LED ndi Direct LED matrix backlight mitundu – yomwe ili yabwinoko komanso kusiyana kwake

Kusankha LCD LED TV ndi yankho lomwe lidzakhalapo kwa zaka zambiri, kotero muyenera kumvetsera magawo ake musanagule. Chodabwitsa n’chakuti, kukula kwazenera ndi 4K sikungotsimikizira chithunzi chapamwamba kwambiri. Mu positi iyi, tifotokoza kusiyana pakati pa ukadaulo wa Edge LED ndi Direct LED matekinoloje.

Matrix backlight mitundu mu LCD LED TV

Kuyambira kumapeto kwa zaka za m’ma 1990, zowonetsera za LCD zayamba kusintha zowonetsera za CRT, kuzikankhira kunja kwa msika. Kodi tinganene chiyani za iwo patatha zaka zoposa makumi awiri tikukhala m’nyumba zathu? Ma TV a LCD ndi oyang’anira samataya kutchuka ndipo akadali pamwamba. Palibe zowonera mu plasma, kapena OLED yapamwamba posachedwa. https://cxcvb.com/texnika/televizor/texnology/amoled-ili-ips-chto-luchshe.html Kwa zaka zambiri, mtundu wokha wa kuunikira kwa matrix wasintha. M’mbuyomu, nyali zozizira za cathode fluorescent (CCFL) zidagwiritsidwa ntchito kuunikira, masiku ano zimagwiritsidwa ntchito kwambiri popanga magetsi otulutsa magetsi (LED). Kuyang’ana kudzera m’masitolo ogulitsa pa intaneti, mudzakumana ndi mawu akuti LED TV. Kumbukirani kuti iyi ndi LCD TV yowunikiranso ya LED ndipo ilibe chochita ndiukadaulo wa OLED.

1. Direct LED – ma diode amayikidwa pansi pa matrix ndikukhalabe pa nthawi yonse ya ntchito ya TV. Pankhani yowunikira molunjika, opanga nthawi zambiri amagwiritsa ntchito zomwe zimadziwika kuti dimming yakumaloko kuti akwaniritse zakuda zakuya.
2. Mphepete mwa LED – Ma LED amayikidwa m’mphepete mwa matrix. Iyi ndi njira yopulumutsira mphamvu, koma monga muwona pambuyo pake, imatsogolera kuwunikira kosagwirizana.

Malo a ma LED amakhudza kwambiri khalidwe lazithunzi. M’nkhani yonseyi, tiyesa kukambirana zaukadaulo uliwonse mwatsatanetsatane ndikupeza yankho ku funso la Edge LED kapena Direct LED.

Direct LED – matrix ocheperako a LED a TV

Direct LED local dimming ndiukadaulo wapamwamba womwe umapereka zakuda zakuya. Kupyolera mukugwiritsa ntchito kulamulira kwa backlight, chithunzicho chimapeza khalidwe lomwe silikupezeka pa ma TV wamba a DLED. Kusiyanitsa kwakukulu kumatheka. Madera opepuka amachepetsedwa paokha, ndikusiya malo owala akuwonekera bwino. Iyi ndi njira yabwino kwa iwo omwe akufunafuna TV ya LED koma sakufuna kupirira zovuta za Direct kapena Edge. Pamafotokozedwe a TV, nthawi zambiri mumatha kupeza mawu akuti Full Array Local Dimming (Samsung imagwiritsa ntchito mawu akuti Direct Full Array), izi sizili kanthu koma kuwala kwachindunji komwe kumakhala ndi madera. Amayikidwa mu ma TV apakatikati ndi apamwamba. Mu zitsanzo zodula kwambiri, mudzapeza madera a 1000, otsika mtengo, kawirikawiri 50-60 okha.

Ubwino ndi kuipa kwa kuyatsa kwachindunji

Ochiritsira DLED-backlight ali ndi zovuta zambiri kuwonjezera pa kuwunikira kwa matrix. Ma TV okhala ndi ukadaulo wa Direct LED amakhala ndi zovuta zakuda, zomwe pamawonekedwe awo nthawi zambiri zimatengera mithunzi ya imvi. Komabe, Direct LED siili yoyipa kwambiri ikaphatikizidwa ndi dimming yakomweko. Imachotsa zofooka zambiri zaukadaulo wokhazikika. Zithunzi zimakhalabe zowala komanso zowoneka bwino, pomwe mithunzi imatenga kuya.

Makanema amakono atatu okhala ndi Direct LED

Samsung UE55TU7097U

Iyi ndi 55″ 4K LED TV yomwe imathandizira HDR10+ ndi HLG. Mtunduwu uli ndi purosesa ya Crystal 4K, imapereka mawonekedwe apamwamba komanso mitundu yachilengedwe. Dongosolo la Game Enhancer ndi lothandiza kwa osewera, limatsimikizira kutsika kochepa. UE55TU7097U ilinso ndi makina ochulukira, ndipo kuwongolera kwakutali kokhala ndi ntchito zambiri kumapangitsa kuti zikhale zosavuta kuwongolera TV yanu ndi zida zolumikizidwa, pomwe Tizen System 5.5 imakupatsani mwayi wosavuta wazinthu zambiri zapa TV. Miyezo ya TV yokhala ndi choyimira: 1231x778x250 mm.

Sony KD-55X81J

Uwu ndi mtundu wa 55-inch wokhala ndi sensor ya 4K yokhala ndi mulingo wotsitsimula wa 120 Hz, womwe umatsimikizira kusalala kwake kwakukulu. Wopangayo adasamaliranso zamtundu wake popanga zida za HDR10 +, Dolby Vision ndi HLG, komanso purosesa ya HCX Pro AI, yomwe, chifukwa cha luntha lochita kupanga, imangokulitsa chithunzicho kuti chikwaniritse bwino kwambiri. Miyezo ya TV yokhala ndi choyimira: 1243x787x338 mm.

Xiaomi Mi TV P1

Ichi ndi chipangizo chamakono chokhala ndi skrini ya 32-inch Direct Direct LED komanso kutsitsimula kwa 60 Hz. Ukadaulo wa matrix womwe umagwiritsidwa ntchito pano umatsimikizira mtundu wodabwitsa wa zithunzi komanso kuchuluka kwamitundu, kuphatikiza zakuda kwambiri. Miyezo ya TV yokhala ndi choyimira: 733x479x180 mm.
Direct LED kapena Edge LED, yowunikira kumbuyo kuti musankhe ndi yomwe mungakane: https://youtu.be/P0CCeS9R6yU

Mphepete mwa LED – ndichiyani?

Mu ma TV okhala ndi ukadaulo wa Edge LED, ma diode oyera akumbuyo amayikidwa m’mphepete mwa matrix (mumitundu yotsika mtengo, izi zitha kukhala mbali imodzi kapena ziwiri). Kuti kuwala kochokera ku ma LED kufikire kumadera akutali, gawo la LGP ​​likufunika kuti lifalitse. Zowonetsera za LED za Backlit Edge ndizoonda koma zimakhala ndi zowunikira zofanana. Mzere umodzi wa ma LED siwokwanira kuwunikira bwino zonse zomwe zikuwonetsedwa, ndipo ngakhale gawo lapadera silithandiza pano. Nthawi zambiri, chithunzicho chidzakhala chowala m’mphepete kuposa chapakati. Panthawi imodzimodziyo, madera akuda sadzakhala mdima momwe ayenera kukhalira. Komabe, ma TV aku Edge LED ali ndi kusiyana kwabwinoko kuposa ma TV obweranso nthawi zonse.

Ubwino ndi kuipa kwa kuyatsa m’mphepete

Chifukwa cha kuchepa kwa ma LED, Edge LED TV ndi yotsika mtengo kuyendetsa. Amachita chidwi ndi kuwonda kwa chinsalu, chomwe chimawoneka bwino mkati. Mphepete mwa LED imakhala yocheperapo ikafika pakupanga utoto wachilengedwe. Kuti zinthu ziipireipire, Edge LED si njira yotsika mtengo chifukwa ukadaulo umafunikira gawo logawa la LGP ​​lodzipereka.

Ma TV akutsogolo a LED

Chithunzi cha LG32LM558BPLC

Matekinoloje a Edge LED, HDR10 + ndi Quantum HDR omwe amagwiritsidwa ntchito pano amatsimikizira mtundu wa cinematic wa chithunzicho, pomwe Dolby Digital Plus imapereka makina omvera ozungulira komanso amakulolani kuti musinthe kuti igwirizane ndi zomwe mukuwona. Miyezo ya TV yokhala ndi choyimira: 729x475x183 mm.

Chithunzi cha Samsung UE32N4010AUX

Iyi ndi 32-inch HD matrix TV, yomwe ili yabwino kuchipinda chogona kapena chipinda cha ana. Digital Clean View mode yomwe imagwiritsidwa ntchito pano imapereka mitundu yachilengedwe, pomwe Mafilimu amasintha makonzedwe azithunzi kuti kuwonera makanema kukhale kosangalatsa. Miyezo ya TV yokhala ndi choyimira: 737x465x151 mm.