Uma i-2018 ingunyaka wobuchwepheshe obuhle bokuboniswa, akuyona ihaba.I-Ultra HD 4K iyaqhubeka nokuba ukulungiswa okujwayelekile embonini ye-TV.Ububanzi obunamandla obuphezulu (i-HDR) akuseyona into enkulu elandelayo ngoba seluqalisiwe kakade.Kungokufanayo nezikrini ze-smartphone, eziya ngokuya ziba sobala ngenxa yokwanda kokuxazulula nokuminyana kwephikseli iyintshi ngayinye.
Kodwa kuzo zonke izici ezintsha, sidinga ukucabangela ngokujulile umehluko phakathi kwezinhlobo ezimbili zokubonisa.Zombili izinhlobo zokubonisa zibonakala kumamonitha, omabonakude, omakhalekhukhwini, amakhamera, kanye nanoma iyiphi enye idivayisi yesikrini.
Enye yazo i-LED (I-Light Emitting Diode).Iwuhlobo oluvame kakhulu lokuboniswa emakethe namuhla futhi lunobuchwepheshe obuhlukahlukene.Nokho, ungase ungalwazi lolu hlobo lwesibonisi ngoba luyefana nelebula ye-LCD (Liquid Crystal Display).I-LED ne-LCD ziyefana ngokuya ngokusetshenziswa kwesibonisi.Uma isikrini se-"LED" simakwe ku-TV noma ku-smartphone, empeleni isikrini se-LCD.Ingxenye ye-LED ibhekisela kuphela kumthombo wokukhanya, hhayi isibonisi ngokwaso.
Ngaphezu kwalokho, iyi-OLED (i-Organic Light Emitting Diode), esetshenziswa kakhulu kumaselula asezingeni eliphezulu njenge-iPhone X kanye ne-iPhone XS esanda kukhishwa.
Njengamanje, izikrini ze-OLED zigeleza kancane kancane kumafoni e-Android asezingeni eliphezulu, njenge-Google Pixel 3, nama-TV asezingeni eliphezulu njenge-LG C8.
Inkinga ukuthi lobu ubuchwepheshe bokubonisa obuhluke ngokuphelele.Abanye abantu bathi i-OLED imele ikusasa, kodwa ingabe ingcono ngempela kune-LCD?Bese, sicela ulandeleI-Topfoisonukuthola.Ngezansi, sizodalula umehluko phakathi kobuchwepheshe bokuboniswa okubili, izinzuzo zabo ngokulandelana kwazo nezimiso zokusebenza.
Umehluko
Ngamafuphi, ama-LED, izikrini ze-LCD zisebenzisa amalambu angemuva ukuze zikhanyise amaphikseli azo, kuyilapho amaphikseli e-OLED empeleni azikhanyisa ngokwawo.Kungenzeka ukuthi uzwile ukuthi amaphikseli e-OLED abizwa ngokuthi "i-self-ilumination" kanti ubuchwepheshe be-LCD "buyadlulisa".
Ukukhanya okukhishwa isibonisi se-OLED kungalawulwa ngephikseli ngephikseli.Izibonisi ze-LED liquid crystal azikwazi ukufeza lokhu kuguquguquka, kodwa futhi zinemibi, okuyintoI-Topfoisonizokwethula ngezansi.
Emafonini e-TV ne-LCD abiza kancane, izibonisi zekristalu eliwuketshezi lwe-LED zivamise ukusebenzisa "ukukhanya okusemaphethelweni" lapho ama-LED empeleni atholakala eceleni kwesibonisi kunangemuva.Bese, ukukhanya okuvela kulawa ma-LED kukhishwa nge-matrix, futhi sibona amaphikseli ahlukene afana nokubomvu, okuluhlaza okotshani, nokuluhlaza okwesibhakabhaka.
Ukukhanya
I-LED, isikrini se-LCD sikhanya kune-OLED.Lena inkinga enkulu embonini ye-TV, ikakhulukazi amafoni ahlakaniphile avame ukusetshenziswa ngaphandle, ekukhanyeni kwelanga.
Ukukhanya kuvame ukukalwa ngokuthi "ama-nits" futhi cishe ukukhanya kwekhandlela ngemitha yesikwele.Ukukhanya okuphezulu okujwayelekile kwe-iPhone X ene-OLED kungama-625 nits, kuyilapho i-LG G7 ene-LCD ingafinyelela ukukhanya okuphezulu kwama-nits ayi-1000.Kuma-TV, ukukhanya kuphakeme nakakhulu: Ama-TV e-OLED akwa-Samsung angafinyelela ukukhanya okungaphezu kuka-2000 nits.
Ukukhanya kubalulekile uma ubuka okuqukethwe kwevidiyo ekukhanyeni kwe-ambient noma elangeni, kanye nevidiyo yobubanzi obuguqukayo obuphezulu.Lokhu kusebenza kulungele kakhulu i-TV, kodwa njengoba abakhiqizi befoni ephathekayo beqhubeka beziqhayisa ngokusebenza kwevidiyo, ukukhanya nakho kubalulekile kule makethe.Uma izinga lokukhanya liphezulu, kuba mkhulu umthelela obonakalayo, kodwa uhhafu we-HDR kuphela.
Qhathanisa
Uma ubeka isikrini se-LCD ekamelweni elimnyama, ungase uqaphele ukuthi ezinye izingxenye zesithombe esimnyama esiqinile azikho mnyama ngempela, njengoba ukukhanya okungemuva (noma ukukhanya onqenqemeni) kusengabonakala.
Ukwazi ukubona izibani zangemuva ezingafunwa kungase kuthinte ukugqama kwe-TV, okuphinde kube umehluko phakathi kokugqama kwayo okugqamile kanye nethunzi elimnyama kakhulu.Njengomsebenzisi, ungase ubone ukugqama okuchazwe kuzicaciso zomkhiqizo, ikakhulukazi kuma-TV namamonitha.Lokhu kuqhathanisa okokukhombisa ukuthi umbala omhlophe wemonitha ugqama kangakanani uma uqhathaniswa nombala waso omnyama.Isikrini se-LCD esihloniphekile singase sibe nesilinganiso sokungafani esingu-1000:1, okusho ukuthi okumhlophe kugqama izikhathi eziyinkulungwane kunomnyama.
Umehluko wesibonisi se-OLED uphezulu kakhulu.Uma isikrini se-OLED siba mnyama, amaphikseli aso awakhiqizi ukukhanya.Lokhu kusho ukuthi uthola ukugqama okungenamkhawulo, nakuba ukubukeka kwayo kubukeka kukuhle kuye ngokukhanya kwe-LED uma ikhanyisiwe.
Umbono
Amaphaneli e-OLED anama-engeli amahle kakhulu wokubuka, ikakhulukazi ngoba ubuchwepheshe buncane kakhulu futhi amaphikseli asondele kakhulu phezulu.Lokhu kusho ukuthi ungakwazi ukuhamba uzungeze i-OLED TV noma ume ezingxenyeni ezihlukene zegumbi lokuphumula futhi ubone isikrini ngokucacile.Kumafoni omakhalekhukhwini, i-angle yokubuka ibaluleke kakhulu, ngoba ifoni ngeke ihambisane ngokuphelele nobuso lapho isetshenziswa.
I-engeli yokubuka ku-LCD ngokuvamile ayilungile, kodwa lokhu kuyahluka kakhulu kuye ngobuchwepheshe bokubonisa obusetshenzisiwe.Okwamanje kunezinhlobo eziningi ezahlukene zamaphaneli e-LCD emakethe.
Mhlawumbe okuyisisekelo kakhulu yi-twisted nematic (TN).Lobu buchwepheshe buvamise ukusetshenziswa kuzibonisi zekhompyutha ezisezingeni eliphansi, amakhompyutha aphathekayo angabizi, nakwamanye amafoni abiza kancane.Umbono wayo uvame ukuba mubi.Uma uke waqaphela ukuthi isikrini sekhompuyutha sibukeka njengesithunzi ukusuka kwelinye i-engeli, khona-ke mhlawumbe iphaneli ye-nematic esontekile.
Ngenhlanhla, amadivaysi amaningi e-LCD okwamanje asebenzisa iphaneli ye-IPS.I-IPS (Plane Conversion) njengamanje iyinkosi yamaphaneli ekristalu futhi ngokuvamile inikeza ukusebenza okungcono kombala kanye ne-engeli yokubuka ethuthuke kakhulu.I-IPS isetshenziswa kuma-smartphones amaningi namathebulethi, inani elikhulu lama-monitor namathelevishini.Kuyaqapheleka ukuthi i-IPS ne-LED LCD azihlukani, esinye nje isixazululo.
Umbala
Izikrini zakamuva ze-LCD zikhiqiza imibala yemvelo emangalisayo.Kodwa-ke, njengombono, kuncike kubuchwepheshe obuthile obusetshenzisiwe.
Izikrini ze-IPS ne-VA (Vertical Alignment) zinikeza ukunemba kombala okuhle kakhulu uma zilinganiswa kahle, kuyilapho izikrini ze-TN ngokuvamile zingabukeki zizinhle kangako.
Umbala wama-OLED awunayo le nkinga, kodwa ama-TV e-OLED okuqala kanye nomakhalekhukhwini banezinkinga ekulawuleni umbala nokwethembeka.Namuhla, isimo sesithuthukile, njengochungechunge lwe-Panasonic FZ952 lwama-OLED TV ngisho nezitudiyo zokugreda imibala zaseHollywood.
Inkinga ngama-OLED inani lawo lombala.Okusho ukuthi, isigcawu esikhanyayo singaba nomthelela ekhonweni lephaneli ye-OLED ukugcina ukugcwala kombala.
Isikhathi sokuthumela: Jan-22-2019