I-TV ye-LED iyini ngempela
Kube nomthelela omkhulu nokudideka okuzungezile ukumaketha kwezingxoxo ze- "LED". Ngisho nabaningi abamele ubudlelwane bomphakathi nabathengisi okumele bazi kangcono ukuthi bayinikeza amanga ukuthi i-Television ye-LED yenzani kulabo abathengi.
Ukusetha irekhodi eliqondile, kubalulekile ukuqaphela ukuthi ukufakwa kwe-LED kubhekisela kwisistimu ye-backlight esetshenziselwa amakholevishini amaningi e-LCD, hhayi ama-chips akhiqiza okuqukethwe komfanekiso.
Ama-chips e-LCD namaphikseli akhiqizi ukukhanya kwawo. Ukuze i-LCD ithelevishini ikhiqize isithombe esibonakalayo esikrinini se-TV, amaphikseli e-LCD kufanele abuyele "emuva". Ukuze uthole okunye okucacile mayelana nenqubo yokubuyiselwa emuva okudingekayo kumaThelevishini e-LCD, bheka isihloko sami: Ukuhlaziya i-CRT, i-Plasma, i-LCD, ne-DLP Television Technologies .
Emkhakheni wabo, ama-TV e-LED namanje ama-TV e-LCD. Umehluko phakathi kwalaba ababili, njengoba kushiwo ngenhla, isistimu ye-backlight esetshenzisiwe. Ama-TV amaningi e-LCD asebenzisa izimpukane ze-LED esikhundleni se-backlight-type type backlights kanjalo nokubhekisela ku-LED ku-TV hype hype.
Ukuze ube neqiniso ngokuqondile, ama-TV e-LED kufanele ngempela abhalwe futhi adluliswe njenge-LCD / LED noma i-LED / i-LCD TV.
Yeka ukuthi ubuchwepheshe be-LED busetshenziswa kanjani kuma-TV e-LCD
I-Now njengamanje izindlela ezimbili eziyinhloko ukuthi ukubuyiselwa kwe-LED kusetshenziswe kuthelevishini zamapaneli e- LCD flat .
I-LED Edge Lighting
Uhlobo olulodwa lokukhanyisa kwe-LED lubizwa ngokuthi yi- Edge Lighting .
Kule ndlela, i-LED elandelanayo ifakwa eceleni kwemiphetho yangaphandle yephaneli ye-LCD. Khona-ke ukukhanya kuhlakazeka ngaphesheya kwesikrini besebenzisa "ama-light diffusers" noma "iziqondiso zokukhanya". Inzuzo yale ndlela yukuthi i-LED / i-LCD TV ingenziwa yincane kakhulu. Ngakolunye uhlangothi, ukungalungi kokukhanyisa kwe-Edge wukuthi amazinga omnyama awanalo okujulile futhi indawo enqenqemeni yeskrini inomkhuba wokukhanya kunendawo engaphakathi kwesikrini.
Kanti futhi, ngezinye izikhathi ungase ubone nokuthi yini ebizwa ngokuthi "ukukhanya" emaceleni kwesikrini, kanye / noma "ama-white blotches" ahlakazekile ngaphesheya kwesikrini. Uma ubuka ukukhanya kwelanga noma izigcawu zangaphakathi ezikhanyisiwe, lezi zimo azivame ukubonakala - Noma kunjalo, zingabonakala ezigabeni ezihlukahlukene, lapho ubusuku noma izigcawu ezimnyama kuhlelo lwe-TV noma i-movie kubhekwa.
Ukukhanyisa okuqondile kwe-LED
Olunye uhlobo lokukhanyisa kabusha kwe-LED lubizwa ngokuthi oluqondile noma oluphelele-olubizwa ngezinye izikhathi njenge-LED egcwele) .
Kule ndlela, imigqa eminingana ye-LED ifakwa ngemuva kwendawo yonke yeskrini. Inzuzo eyinhloko ye-backlight-full backlay yukuthi ngokungafani nokukhanyisa okweqenqema, indlela eqondile noma egcwele-egcwele, inikeza okungaphezulu ngisho, okufanayo, izinga elimnyama kuwo wonke ubuso besikrini.
Enye inzuzo ukuthi lezi ziqoqo zingasebenzisa "ukwehlisa indawo" (uma kusetshenziswe umenzi). Ukubuyiselwa okujwayelekile kwe-Array okuhlanganisiwe nokuxhuma kwendawo kubuye kubhekiswe njenge-FALD .
Uma i-LED / i-LCD TV ibhalwe ngokuthi i-Direct Lit, lokhu kusho ukuthi ayihlanganisi ukuchithwa kwendawo, ngaphandle uma kuneziqu ezengeziwe zokuchaza. Uma i-LED / i-LCD TV ingabonakalisa ukwehla kwendawo, ngokuvamile ibizwa ngokuthi i-Full Array Backlit Set noma ichazwa njenge-Full Array ne-Dimming Local.
Uma ukuchithwa kwendawo kusetshenzisiwe, lokhu kusho ukuthi amaqembu ama-LED angavulwa futhi avule ngokuzimela ezindaweni ezithile zesibuko (ngezinye izikhathi zibhekiswe ezindaweni), ngaleyo ndlela unikeze ukulawula okungaphezulu kokukhanya nobumnyama ezindaweni zonke, kuye ngokuthi umthombo izinto eziboniswayo.
Olunye uhlobo oluthile lokuhlelwa kabusha kokubuyiselwa okugcwele ngokuqedwa kwesendaweni yi-Sony's Blacklight Master Drive, eyethula ngenani elinganiselwe le-TV ngo-2016.
Lokhu kuhlukahluka kusebentisa indlela lephelele yekusebentisa njengesisekelo sayo, kodvwa esikhundleni sekutsi kusetjentiswa kwetindzawo tekusebentisa (emaqenjini wamaphikseli), kukhanya kwe-pixel ngayinye kungavuleka futsi kuvaliwe, lekwengeza lokukhanyisa nekucacisa lokucondzile kakhulu kokubili lokukhanyako izinto ezimnyama - ezifana nokuqeda ukuphuma kwamhlophe kusuka ezintweni ezikhanyayo ezizindeni ezimnyama.
Ukusuka Kwendawo Ku-TV Edge-Lit LCD TV
Kodwa-ke, kufanele futhi kubonakale ukuthi amanye ama-TV / iLCD ama-LCD aphezu komgwaqo athiwa afaka "ukwehla kwendawo". I-Samsung isebenzisa leli gama elithi micro-dimming, i-Sony ibhekisela ku-version yabo yaloluhlobo oluhlukile lwezobuchwepheshe njenge-Dynamic LED (kumaTV angenayo i-blacklight master drive), kuyilapho i-Sharp ibhekisela kunguqulo yabo njenge-Aquos Dimming. Kuye ngomkhiqizi igama elisetshenziswayo lingashintsha. Kodwa-ke, ubuchwepheshe obuqashiwe buhlanganisa ukukhishwa okukhanyayo okusebenzisa ukukhanya okukhanyayo neziqondiso zokukhanya ngakho-ke kunembile kakhulu kunendlela ecacile yokwehlisa indawo yendawo esetshenziswe ku-Full Array noma Direct-Lit LED / LCD TV.
Uma ucabangela ukuthengwa kwe-LED / i-LCD Television, thola ukuthi yimaphi ama-brand namamodeli okwamanje asebenzisa i-Edge noma i-Full Array indlela futhi abuke uhlobo ngalunye uma uya ezitolo ukuze ubone ukuthi yiluphi uhlobo lokubuyiselwa kwe-LED olubukeka kangcono kuwe .
Ama-TV / i-LCD / ama-LCD nge-Standard LCD TV
Njengoba ama-LED aklanywa ngendlela ehlukile kunezinqubo ezijwayelekile ze-backlight lightlight, lokhu kusho ukuthi i-LED entsha ibuyisela kabusha isethi ye-LCD inikezela ukungezwani okulandelayo ngamasethingi e-LCD ajwayelekile:
- Ukusebenzisa amandla okuphansi.
- Ayikho i-Mercury esetshenzisiwe njengamanye amasistimu e-backlight LCD.
- Umshini wokubala obala olinganiselayo.
- Ku-TV / I-LCD TVs usebenzisa indlela egcwele yokukhanya kwe-black Array, akukho ukuvuza okuncane noma okungenakukhanya emaceleni amnyama. Lokhu kunomthelela kumazinga omnyama ngisho nakakhulu kunama - televisions e- LCD ajwayelekile.
- Ama-TV e-LCD asebenzisa i-Full Array noma i-LED ekhanyayo yokubuyiselwa kwe-LED yimbi kunama-TV e-LCD asebenzisa umthombo wokukhanyisa we-LED okhanyisiwe. Ngamanye amazwi, i-LED / i-LCD TV esebenzisa indlela yokubuyiselwa emuva kwe-Edge ingenziwa ibe mncane kunezo zombili ze-LCD ne-Full Array LED / LCD.
I-TV kuphela ye-LED kuphela (okungenakudideka ne-TV ye- OLED ewubuchwepheshe obuhlukile) yiwo owabona emagcekeni, ama-arnas, nezinye izenzakalo ezinkulu kanye namabhodi amabhodi aphezulu. (Bheka Isibonelo).
Ukukhanyisa kabusha kwe-LED kubonisa kusengaphambili kwezobuchwepheshe, ikakhulukazi ekuletheleni ama-TV e-LCD eduze namaTlask Televisions ngokusebenza kwezinga elimnyama, futhi ngesikhathi esisodwa, okwenza ngisho nemiklamo ye-LCD TV emincane.
Ama-LED nama-Dotum Amachashazi
Olunye ubuchwepheshe oluthathwa kwinani elikhulayo le-TV / i-LCD TV yi-Quantum Dots. I-Samsung ibhekisela kuma-TV azo e-Quantum Dot / LED efana ne-LCD njengama-TV e-QLED, amaningi aphikisana nama-OLED TV - Noma kunjalo, ungakhohliswa, ubuchwepheshe ababili abufani kuphela kodwa abuhambisani.
Ngamafuphi, i-Quantum Dots yi-nanoparticles eyenziwe ngabantu ebeka phakathi kwe-Edge Lit noma i-Direct / Full Array LED Backlight ne-Panel LCD. I-Quantum Dots eyenzelwe ukuthuthukisa ukusebenza kombala ngaphezu kwalokho i-LED / i-LCD TV ingaveza ngaphandle kwayo. Ukuze uthole imininingwane ephelele mayelana nokuthi i-Quantum Dots zenziwe kanjani, nokuthi kanjani, futhi kanjani, esetshenziselwa ama-TV / i-LCD TV, bheka ku-athikili yami ye- Quantum Dots - Ukwandisa ukusebenza kwe-LCD TV .
Ukusetshenziswa kwe-LED kumaphrojekthi wevidiyo we-DLP
Ukukhanyisa kwe-LED nakho kwenza indlela yokuya kuma- video we-DLP video . Kulesi simo, i-LED inikeza umthombo wokukhanya esikhundleni sesibani senkambiso yendabuko. Kumshini wevidiyo we-DLP, isithombe sikhiqizwa ngempela kwifomu ye-grayscale ebusweni be-Chip DLP, lapho i-pixel ngayinye nayo isibuko. Umthombo wokukhanya (kulokhu umthombo wokukhanyisa we-LED owakhiwe ngezinto ezibomvu, eziluhlaza nokuluhlaza okwesibhakabhaka) kubonisa ukukhanya kwe-micromirror ye-DLP chip futhi kufakwe esikrinini.
Ukusebenzisa umthombo wokukhanya we-LED kumaphrojekithi wevidiyo ye-DLP kuqeda ukusebenzisa isondo lombala. Lokhu kukuvumela ukuba ubone isithombe esikrinini ngaphandle komphumela we-rainbow DLP (amaminithi amancane embala athile abonakalayo emehlweni ababukeli ngesikhathi sokunyakaza kwekhanda). Futhi, njengoba imithombo yokukhanya ye-LED yeprojeraji ingenziwa encane kakhulu, uhlobo olusha lwama-projectors wevidy video, okuthiwa umthombo wokukhanya we-LED kumavidiyo we-DLP video aqeda ukusebenzisa isondo lombala. Lokhu kukuvumela ukuba ubone isithombe esikrinini ngaphandle komphumela we-rainbow DLP (amaminithi amancane embala athile abonakalayo emehlweni ababukeli ngesikhathi sokunyakaza kwekhanda). Futhi, njengoba imithombo yokukhanya ye-LED yeprojeraji ingenziwa encane kakhulu, izinhlobo ezintsha zeprojekti yevidyo ye-compact, okubizwa ngokuthi i-Pico projectors iye yathandwa.
Ukusetshenziswa kwe-LED kuma-TV - okwamanje nekusasa
Kusukela ukushona kwama-Plasma TVs , i-LED / i-LCD TV manje iyindlela evelele ye-TV etholakalayo kubathengi. Ama-TV e-OLED, asebenzisa ubuchwepheshe obuhlukile, atholakalayo, kodwa abe nokusabalalisa okulinganiselwe (Kusukela ngo-2017, i-LG ne-Sony yilabo kuphela abenzi be-TV abathengisa ama-TV e-OLED e-US Market), futhi bayabiza kakhulu kunezihlobo zabo ze-LED / i-LCD TV. Ngokulungiswa kwezici, njenge-Dimming Local kanye ne-Quantum Dots, kulungile ukukusho ukuthi ikusasa le-TV / i-LCD TV likhanya kakhulu.
Ukuze uthole olunye ulwazi mayelana nobuchwepheshe be-LED osetshenziswa kuma-TV e-LCD, hlola umbiko ovela ku-CDRinfo.