Yiyiphi i-TV ye-LED eyiyo
Kuye kubekho utyando oluninzi kunye nodideko olujikeleze ukuthengiswa kweTTVs. Kwabaninzi abameli bobudlelwane boluntu kunye nabaqeqeshi bokuthengisa abafanele bazi kakuhle bachaza ngokucacileyo ukuba i-TV ye-TV yintoni kubathengi babo.
Ukusetha irekhodi ngokuchanekileyo, kubalulekile ukuba uqaphele ukuba ukutyunjwa kwe-LED kubhekisela kwinkqubo yokubuyiselwa kwindlela esebenzayo kwiiLCD ezininzi, kungekhona iichips ezivelisa umxholo womfanekiso.
Iifayili ze-LCD kunye neepekseli azivelisi ukukhanya kwazo. Ukuze ithelevishini yeLCD ivelise umfanekiso obonakalayo kwiskrini seTV, ii-pixels ze-LCD kufuneka "zibuyiselwe". Ukufumana iinkcukacha ezongezelelweyo kwiinkqubo zokubuyiselwa kwemfuneko ezifunekayo kwii-TV zeLCD, jonga kwinqaku lam: Ukufunwa kwe-CRT, iPlasma, i-LCD, kunye ne-DLP Television Technologies .
Ngundoqo, ii-TV ze-LED ziyi-LCD yeTV. Umahluko phakathi kwezi zibini, njengoko kuchazwe ngasentla, isistim sokukhanyisa esetyenziswayo. Uninzi lwee-TV ze-LCD zisebenzisa ama-LED e-backlights kunokuba u-Fluorescent-type-backlights ukhangele i-LED kwi-TV yentengiso ye-TV.
Ukuba zichaneke ngezobuchwepheshe, ii-TV ze-LED kufuneka zibhalwe kwaye zipapashwe njengeLCD / LED okanye i-LED / i-LCD TV.
Indlela iTheknoloji yeTeknoloji isetyenziswa ngayo kwii-TV zeLCD
Ezi zimbini iindlela eziphambili zokukhanyisa kwe-LED zisetyenziswe kwii- TV zephaneli zephaneli .
I-LED Edge Lighting
Olunye uhlobo lokukhanyisa i-LED lubizwa ngokuba yi- Edge Lighting .
Ngale ndlela, ii-LED ezilandelelweyo zifakwe ngaphesheya kwee-LCD panel. Ukukhanya kuthiwa kwasasazeka kwisikrini kusetyenziswa "i-light diffusers" okanye "izikhokelo zokukhanya". Inzuzo yale ndlela kukuba i-LED / i-LCD TV ingenziwa yincinci. Ngakolunye uhlangothi, ukungalungi kokukhanyisa kwe-Edge kukuba amanqanaba amnyama ayengekho enzulu kwaye indawo engqongqo yesikrini inomdla wokukhanya ngakumbi kunendawo yesikrini.
Kwakhona, ngamanye amaxesha ungabona kwakhona oko kuthethwa ngokuthi "ukukhanya kwebala" kwiinkalo zesikrini, kunye / okanye "iibhentshi ezimhlophe" ezazisasazeka kwisikrini. Xa ubukela imini okanye izibilini zangaphakathi zomhlaba, le miphumo ayidla ngokubonakalayo -Kodwa, iyakwazi ukubonakala kwiindidi ezahlukahlukeneyo, xa ubusuku okanye imifanekiso emnyama kwiprogram yeTV okanye i-movie ibonwa.
Ukukhanyisa ngokuthe ngqo kwe-LED
Olunye uhlobo lokukhanyisa i-LED lubhekiswa njenge- Direct or Full-Array (ekwabhekwa ngamanye amaxesha njenge-LED epheleleyo) .
Ngale ndlela, imigqa emininzi ye-LED ifakwa ngaphaya komphezulu wesikrini. Inzuzo ephambili ye-backlight-back backlight yinto engafaniyo nokukhanyisa ukukhawuleza, indlela eLawulayo okanye epheleleyo, inikezela ngaphezulu, yifani, inqanaba elimnyama kuyo yonke indawo yeskrini.
Enye inzuzo kukuba ezi setekethi zingasebenzisa "i-local dimming" (xa iphunyezwa ngumenzi). Ukubuyiselwa kokuBala ngokuBambisana kunye nokuKhutshwa kweNgingqi kukwabizwa ngokuba yi-FALD .
Ukuba i-LED / i-LCD ye-TV ibhalwe njenge-Direct Lit, oku kuthetha ukuba ayibandakanyi ukuhlutha kwendawo, ngaphandle kokuba kukho inkcazelo engaphezulu. Ukuba i-LED / i-LCD TV ingabandakanyi ukutshabalalisa kwendawo, idla ngokubizwa ngokuba yi-Full Array Backlit Set okanye ichazwa njenge-Full Array ne-Local Distimming.
Ukuba i-dimming yengingqi isetyenziswe, oku kuthetha ukuba amaqela e-LED angagqulwa kwaye avaliwe ngokuzimeleyo kwimimandla ethile yesikrini (ngamanye amaxesha abhekiselwa kwimimandla), ngaloo ndlela unikeza ukulawula okungakumbi ukukhanya kunye nobumnyama kuzo zonke iindawo, kuxhomekeke kumthombo izinto eziboniswayo.
Olunye uguquko olulandelayo lokuhlaziya ngokutsha kunye ne-dimming yendawo yi-Sony's Blacklight Master Drive, eyayifaka inani elincinci leTV kwi-2016.
Olu hlobo lusetyenziswa ngendlela epheleleyo njengendlela esekelwe kuyo, kodwa endaweni yokusebenzisa iindawo zokuhlala (iiqela zamaphikseli), ukukhanya kwe-pixel nganye kungaziphendulela ngokuzimeleyo kunye nokucima, okongeza ukukhanya okucacileyo kunye nokulawulwa kokungafani kokubili kunye izinto ezinjengezinto ezimnyama - ezifana nokuphelisa ukuphuma kwamhlophe kumpahla ekhanyayo kwimvelaphi emnyama.
Ukuhlaselwa kweNgingqi Kwii-TV ze-LCD ze-LED Edge-Lit
Nangona kunjalo, kufuneka kukhonjiswe ukuba ezinye ii-LED / i-LCD TV zibhekiselele ukuba zibonisa "ukutshabalalisa kwendawo". I-Samsung isebenzisa i-term-dimming dim, i-Sony ibhekisela kwiinguqu zabo zezobuchwepheshe njenge-Dynamic LED (kwiiTV ezingenayo i-blacklight drive drive), ngoxa i-Sharp ibhekisela kwinguqulo yabo njenge-Aquos Dimming. Ngokuxhomekeke kumenzi wegama elisetyenziswayo lingahluka. Nangona kunjalo, iteknoloji esebenzayo ibandakanya ukuveliswa kokukhanya okusebenzisa i-light diffusers kunye nezikhokelo ezikhanyayo ngoko-ke kuncinci kunendlela echanekileyo ye-dimming yendawo esetyenzisiweyo kwi-Full Array okanye kwi-Direct-Lit LED / i-LCD TV.
Ukuba ucinga ngokuthenga i-LED / i-LCD iThelevishini, fumana ukuba yiyiphi imveliso kunye namanqaku okwangoku usebenzisa i-Edge okanye i-Full Array indlela kwaye ukhangele uluhlobo ngalunye xa uhamba ukuyothenga ukuze ubone ukuba luhlobo luni lokukhanyisa kwe-LED lubonakala luhle kuwe .
I-TV / i-LCD yeTVs vs i-Standard Standard LCD TV
Ekubeni ii-LED zenziwe ngendlela eyahlukileyo kuneendlela ezibuyiselwayo zokubuyiselwa kwe-fluorescent system, oku kuthetha ukuba i-LED entsha ivuselela iiseti ze-LCD inikezela ngoku kwahlula okulandelayo ngeesethi ze-LCD eziqhelekileyo:
- Ukusetyenziswa kwamandla asezantsi.
- Akukho i-Mercury esetyenzisiweyo njengamanye amashishini okukhanyisa iLCD.
- Umgca wokubala obala.
- Kwi-TV / i-LCD yeTV esebenzisa i-Full Array indlela yokukhanya emnyama, akukho ukuvuza okuncinci okanye akukho ukukhanya ekukhanyeni. Oku kuncedisa kumanqanaba amnyama angcono kunamaTV e-LCD avuliwe .
- I-TV ye-LCD esebenzisa i-Full Array okanye i-LED ekhanyayo yokubuyiselwa kwe-LED yimbi ngaphezu kwee-TV ze-LCD eziqhawula umthombo wokukhanya kwe-LED okhanyisiweyo. Ngamanye amazwi, i-LED / i-LCD yeTV esebenzisa indlela yokubuyiselwa kwe-Edge ingenziwa ibe yincinci kunezo zombini ze-LCD kunye ne-Full Array ye-LED / i-LCD.
I-TV kuphela ye-TV kuphela (engeyikudideka kunye ne-TV ze- OLED ezobugcisa obuhlukeneyo) yizo ozibona kwiimidlalo, ii-annas, nezinye iziganeko ezinkulu kunye neebhodi eziphezulu. (Jonga umzekelo).
Ukukhanyisa ukukhanya kwe-LED kubhekisela phambili kwithekhnoloji, ngokubanzi ukuzisa ii-TV ze- LCD kwiiTelevishini zePlasma ngokubhekiselele ekusebenzeni komgangatho omnyama, kwaye, ngelo xesha, ukwenza i-LCD ye-TV eyilungeleleneyo.
Ii-LED kunye ne-Quantum Dots
Enye iteknoloji ebandakanywa kwinani elikhulayo le-LED / i-LCD TV i-Quantum Dots. I-Samsung ibhekisela kwii-TV zazo ze-LED ze-Quantum Dot / i-LCD njengei-TV ze-QLED, ezininzi ezidibanisa ne-TV ze-OLED-Nangona kunjalo, ungakhohliswa, ezobuchwephesha ezimbini azifani kuphela kodwa azihambelani.
Ngamafutshane, i-Quantum Dots yenziwe ngamanoparticles ezenziwe ngumntu afakwe phakathi kwe-Edge Lit okanye i-Direct / Full Array LED Backlight kunye ne-LCD Panel. Iifomati ze-Quantum zenzelwe ukuphucula ukusebenza kombala ngaphaya koko i-LED / i-LCD TV ingavelisa ngaphandle kwayo. Ukufumana iinkcukacha ezipheleleyo malunga nendlela i-Quantum Dots ezenziwe ngayo, kunye nendlela, kwaye yintoni, kwaye isetyenziswe kwii-LED / i-LCD TV, bhekisa kwinqaku le- Quantum Dots - Ukwandisa ukusebenza kwe-TV ye-LCD .
I-LED Sebenzisa kwiiprojekithi zevidiyo zeDLP
Ukukhanyisa kwe-LED kwindlela eyenza iiprojekti zevidiyo ze-DLP . Kule meko, i-LED inikezela umthombo wokukhanya endaweni yesibane senkcubeko. Kwiprojekti yevidiyo ye-DLP, umfanekiso uveliswa kwifom ye-grayscale kumgangatho we-Chip DLP, apho ipiliseli nganye nayo ibubuko. Umthombo wokukhanya (kulo mzekelo umthombo wokukhanya we-LED owenziwe ngezinto ezibomvu, eziluhlaza kunye nohlaza okwesibhakabhaka) kubonisa ukukhanya kwe-micLirp chip ye-DLP kwaye iphrojekthi kwisikrini.
Ukusebenzisa umthombo wokukhanya we-LED kwiiprojekti zevidiyo ze-DLP kuphelisa ukusetyenziswa kwesondo lombala. Oku kunceda ukuba ubone umfanekiso kwiskrini ngaphandle kwempembelelo ye-DLP yomlambo (imibala emininzi yembala edlalwa ngamanye amaxesha ngamehlo ababukeli ngexesha lokuhamba kwentloko). Kwakhona, ekubeni imithombo yokukhanya ye-LED yeeprojekti ingenziwa yincinci kakhulu, uhlobo olutsha lweprojekti yevidyo yevidiyo, ebizwa ngokuba ngumthombo wokukhanya kwe-LED kwiiprojekti zevidiyo ze-DLP kuphelisa ukusetyenziswa kwesondo lombala. Oku kunceda ukuba ubone umfanekiso kwiskrini ngaphandle kwempembelelo ye-DLP yomlambo (imibala emininzi yembala edlalwa ngamanye amaxesha ngamehlo ababukeli ngexesha lokuhamba kwentloko). Kwakhona, ekubeni imithombo yokukhanya ye-LED yeeprojekti ingenziwa ibe yincinci kakhulu, uhlobo olutsha lweprojekti yevidyo ye-compact, ebizwa ngokuba yiprojekthi yePoo projekthi yathandwa.
I-LED isebenzisa kwiTVs-Present and Future
Ekubeni ukutshabalaliswa kweTVs, ii-TV / i-LCD i-TV njengamanje ifom ye-TV efumanekayo kubathengi. Ii-TV ze-OLED, ezisebenzisa iteknoloji eyahlukeneyo, ziyafumaneka kwakhona, kodwa zinokunikezelwa ngokukhawuleza (Ngowe-2017, i-LG kunye no-Sony kuphela abenzi beTV abamaketha ii-TV ze-OLED kwi-US Market), kwaye zibiza ngaphezu kweendlela zabo ze-LED / i-LCD TV. Ngokucocwa kweempawu, ezinjenge-dimming local kunye ne-Quantum Dots, kulungile ukuthetha ukuba ikusasa leTV / i-LCD yeTV ikhanya kakhulu.
Ukufumana ulwazi oluninzi malunga nobuchwepheshe be-LED asetyenziswa kwii-TV ze-LCD, khangela ingxelo evela kwi-CDRinfo.