Omunye wemibuzo evame ukubuzwa mayelana nezikrini ze-LED ukuthi zidinga ukukhanya okungemuva. Ukuqonda umehluko phakathi kobuchwepheshe bokubonisa kubalulekile ekuphenduleni lo mbuzo, njengoba izinhlobo ezihlukene zezikrini, njenge-LED ne-LCD, zisebenza ngezimiso ezihlukile. Kule bhulogi, sizohlola indima yokukhanyisa ngemuva kuzibonisi ezihlukahlukene, futhi ikakhulukazi ukuthi izikrini ze-LED ziyakudinga yini noma cha.
1. Kuyini Ukukhanyisa Okungemuva Ezibonisini?
Ukukhanyisa ngemuva kusho umthombo wokukhanya osetshenziswa ngemuva kwephaneli yokubonisa ukukhanyisa isithombe noma okuqukethwe okuboniswayo. Ezimweni eziningi, lo mthombo wokukhanya uyadingeka ukuze wenze isikrini sibonakale, njengoba unikeza ukukhanya okudingekayo ukuze amaphikseli abonise imibala nezithombe ngokucacile.
Isibonelo, kuzikrini ze-LCD (Liquid Crystal Display), amakristalu awuketshezi ngokwawo awakhiphi ukukhanya. Esikhundleni salokho, bathembela ekukhanyeni okungemuva (okwakujwayelekile ukuthi kube yi-fluorescent, kodwa manje osekuyi-LED) ukuze kukhanye amaphikseli ngemuva, okubavumele ukuthi baveze isithombe.
2. Umehluko Obalulekile Phakathi Kwezikrini ze-LED ne-LCD
Ngaphambi kokukhuluma ngokuthi izikrini ze-LED zidinga ukukhanya kwangemuva, kubalulekile ukucacisa umehluko phakathi kwe-LCD nezikrini ze-LED:
Izikrini ze-LCD: Ubuchwepheshe be-LCD buthembele ekukhanyeni kwangemuva ngoba amakristalu awuketshezi asetshenziswa kulezi zibonisi awakhiqizi ukukhanya kwawo. Izikrini zesimanje ze-LCD zivame ukusebenzisa amalambu angemuva e-LED, okuholela egameni elithi “LED-LCD” noma “LED-backlit LCD.” Kulokhu, "i-LED" ibhekisela kumthombo wokukhanya, hhayi ubuchwepheshe bokubonisa ngokwayo.
Izikrini ze-LED (I-LED Yangempela): Ezibonisini ze-LED zangempela, i-pixel ngayinye iyi-diode yokukhanya ekhipha ukukhanya (i-LED). Lokhu kusho ukuthi i-LED ngayinye ikhiqiza ukukhanya kwayo, futhi akukho ukukhanya okungemuva okuhlukile okudingekayo. Lezi zinhlobo zezikrini zivame ukutholakala kuzibonisi zangaphandle, amabhodi ezikhangiso edijithali, nasezindongeni zevidiyo ze-LED.
3. Ingabe Izikrini ze-LED Zidinga Ukukhanya Kwangemuva?
Impendulo elula ithi cha—izikrini ze-LED zeqiniso azidingi ukukhanya kwangemuva. Nasi isizathu:
Amaphikseli azikhanyisayo: Kuzibonisi ze-LED, iphikseli ngalinye liqukethe i-diode encane ekhipha ukukhanya ekhiqiza ukukhanya ngokuqondile. Njengoba iphikseli ngalinye likhiqiza ukukhanya kwalo, asikho isidingo somthombo wokukhanya owengeziwe ngemuva kwesikrini.
Ukugqama Okungcono Nokumnyama Okujulile: Ngenxa yokuthi izikrini ze-LED azinciki ekukhanyeni kwangemuva, zinikeza izilinganiso ezingcono zokungafani nokumnyama okujulile. Emibukisweni ye-LCD enokukhanya kwangemuva, kungaba nzima ukuzuza abamnyama bangempela njengoba ukukhanya kwangemuva akukwazi ukucisha ngokuphelele ezindaweni ezithile. Ngezikrini ze-LED, amaphikseli angawodwana angacima ngokuphelele, okuholela ekuhlukeni kwangempela okumnyama nokuthuthukisiwe.
4. Izicelo Ezivamile Zezikrini ze-LED
Izikrini ze-LED zangempela zivame ukusetshenziswa ezinhlelweni zokusebenza ezahlukahlukene nezisezingeni elikhulu lapho ukukhanya, ukugqama, nemibala egqamile kubaluleke kakhulu:
Amabhodi Okukhangisa e-LED yangaphandle: Izikrini ezinkulu ze-LED zokukhangisa nezimpawu zedijithali zidumile ngenxa yokukhanya kwazo okuphezulu nokubonakala kwazo, ngisho nalapho kukhanya kwelanga eliqondile.
Izinkundla Zezemidlalo namakhonsathi: Izikrini ze-LED zisetshenziswa kakhulu ezinkundleni nasezindaweni zekhonsathi ukuze kuboniswe okuqukethwe okuguquguqukayo okunembayo okuphakeme nokubonakala kude.
Izindonga ze-LED zangaphakathi: Lezi zivame ukubonakala emakamelweni okulawula, ama-studio okusakaza, nezindawo zokudayisa, ezinikeza izibonisi ezinesinqumo esiphezulu ngokugqama okuhle kakhulu.
5. Ingabe Kukhona Izikrini ze-LED Ezisebenzisa Ukukhanyisa Kwangemuva?
Ngobuchwepheshe, eminye imikhiqizo ebhalwe ngokuthi “izikrini ze-LED” zisebenzisa ukukhanya okungemuva, kodwa lokhu empeleni kuyizibonisi ze-LCD ezikhanya nge-LED. Lezi zikrini zisebenzisa iphaneli ye-LCD enokukhanya kwe-LED ngemuva kwayo ukuze kuthuthukiswe ukukhanya nokusebenza kahle kwamandla. Nokho, lezi akuzona izibonisi ze-LED zeqiniso.
Kuzikrini ze-LED zangempela, akukho ukukhanya okungemuva okudingekayo, njengoba ama-diode akhipha ukukhanya angumthombo wakho kokubili ukukhanya nombala.
6. Izinzuzo Zezikrini Zeqiniso Ze-LED
Izikrini ze-LED zangempela zinikeza izinzuzo ezibalulekile ezimbalwa kunobuchwepheshe be-backlight bendabuko:
Ukukhanya Okuphakeme: Njengoba iphikseli ngayinye ikhipha ukukhanya kwayo, izikrini ze-LED zingafinyelela amazinga okukhanya aphakeme kakhulu, zizenze zilungele kokubili izinhlelo zokusebenza zasendlini nezangaphandle.
Ukugqama Okuthuthukisiwe: Ngekhono lokuvala amaphikseli angawodwana, izikrini ze-LED zinikeza izilinganiso zokungafani ezingcono nokumnyama okujulile, okuthuthukisa ikhwalithi yesithombe.
Ukusebenza Kahle Amandla: Izibonisi ze-LED zingawonga kakhulu kunezikrini ze-LCD ezikhanyiswe ngemuva, njengoba zisebenzisa amandla lapho kudingeka khona ukukhanya, kunokukhanyisa isikrini sonke.
Ubude bokuphila: Ama-LED ngokuvamile anesikhathi eside sokuphila, ngokuvamile esingaphezu kwamahora angu-50,000 kuya kwangu-100,000, okusho ukuthi izikrini ze-LED zingahlala iminyaka eminingi ngokonakala okuncane ekukhanyeni nasekusebenzeni kombala.
Isiphetho
Kafushane, izikrini ze-LED zangempela azidingi ukukhanya kwangemuva. Iphikseli ngayinye esikrinini se-LED ikhiqiza ukukhanya kwayo, okwenza isibonisi sizikhanyisele ngokwaso. Lobu buchwepheshe bunikeza izinzuzo ezimbalwa, okuhlanganisa ukugqama okuphezulu, okumnyama okujulile, nokukhanya okuphezulu. Kodwa-ke, kubalulekile ukuhlukanisa phakathi kwezibonisi ze-LED zangempela kanye nama-LCD anama-LED-backlit, njengoba lokhu kwakamuva kudinga ukukhanya kwangemuva.
Uma ufuna isibonisi esinekhwalithi yesithombe esihle kakhulu, ukuphila isikhathi eside, namandla okusebenza kahle, isikrini sangempela se-LED siyisinqumo esihle kakhulu—asikho isibani sangemuva esidingekayo!
Isikhathi sokuthumela: Sep-07-2024