Omnye wemibuzo ebuzwa rhoqo malunga nezikrini ze-LED kukuba ngaba zifuna ukukhanya okusemva. Ukuqonda umahluko phakathi kobuchwephesha bokubonisa ngundoqo ekuphenduleni lo mbuzo, njengoko iintlobo ezahlukeneyo zezikrini, ezifana ne-LED kunye ne-LCD, zisebenza kwimigaqo eyahlukileyo. Kule bhlog, siza kuphonononga indima yokukhanyisa umva kwimiboniso eyahlukeneyo, kwaye ngokukodwa ukuba izikrini ze-LED ziyayifuna okanye ayifuni.
1. Yintoni iBacklighting kwiZiboniso?
Ukukhanyisa kwakhona kubhekiselele kumthombo wokukhanya osetyenziswe emva kwephaneli yokubonisa ukukhanyisa umfanekiso okanye umxholo oboniswayo. Kwiimeko ezininzi, lo mthombo wokukhanya uyimfuneko ukwenza isikrini sibonakale, njengoko sinika ukukhanya okufunekayo kwiipikseli ukubonisa imibala kunye nemifanekiso ngokucacileyo.
Umzekelo, kwizikrini ze-LCD (Liquid Crystal Display), iikristale zolwelo ngokwazo azikhuphi kukhanya. Endaweni yoko, baxhomekeke kwisibane sangasemva (ngokwesiko le-fluorescent, kodwa ngoku iqhelekile i-LED) ukukhanyisa ipikseli ngasemva, ibavumela ukuba babonise umfanekiso.
2. Umahluko oPhambili phakathi kwezikrini ze-LED kunye ne-LCD
Ngaphambi kokujongana nokuba izikrini ze-LED zifuna isibane sangasemva, kubalulekile ukucacisa umahluko phakathi kwe-LCD kunye nezikrini ze-LED:
Izikrini zeLCD: Itekhnoloji yeLCD ixhomekeke kwisibane esingasemva kuba iikristale zolwelo ezisetyenziswa kwezi zibonisi azivelisi ukukhanya kwazo. Izikrini zeLCD zanamhlanje zihlala zisebenzisa izibane ze-LED, ezikhokelela kwigama elithi "LED-LCD" okanye "i-LED-backlit LCD." Kule meko, "i-LED" ibhekisela kumthombo wokukhanya, kungekhona iteknoloji yokubonisa ngokwayo.
Izikrini ze-LED (I-LED yokwenyani): Kwiziboniso ze-LED eziyinyani, ipikseli nganye yi-diode ekhupha ukukhanya (i-LED). Oku kuthetha ukuba i-LED nganye ivelisa ukukhanya kwayo, kwaye akukho kukhanya okwahlukileyo okufunekayo. Ezi ntlobo zezikrini ziqhelekileyo zifumaneka kwimiboniso yangaphandle, iibhodi zedijithali, kunye neendonga zevidiyo ze-LED.
3. Ngaba izikrini ze-LED zifuna ukukhanya kwakhona?
Impendulo elula ayikho-izikrini ze-LED eziyinyani azidingi ukukhanya kwangasemva. Nasi isizathu:
IiPixels zokuzikhanyisa: Kwizibonisi ze-LED, ipixel nganye ine-diode encinci ekhupha ukukhanya evelisa ukukhanya ngokuthe ngqo. Kuba ipikseli nganye ivelisa ukukhanya kwayo, akukho mfuneko yomthombo wokukhanya owongezelelweyo emva kwesikrini.
Umahluko ongcono kunye noMnyama oNzulu: Ngenxa yokuba izikrini ze-LED azithembeli kwisibane esingasemva, zibonelela ngomlinganiselo ongcono wokuchasana kunye nobumnyama obunzulu. Kwimiboniso ye-LCD ene-backlighting, kunokuba nzima ukufezekisa abamnyama bokwenyani kuba i-backlight ayikwazi ukucima ngokupheleleyo kwiindawo ezithile. Ngezikrini ze-LED, ipikseli nganye inokucima ngokupheleleyo, okukhokelela kumnyama wokwenyani kunye nokwahluka okuphuculweyo.
4. Izicelo eziqhelekileyo zeZikrini ze-LED
Izikrini zokwenyani ze-LED ziqhele ukusetyenziswa kwiinkqubo ezahlukeneyo zokusebenza eziphezulu kunye nezikhululo apho ukukhanya, umahluko, kunye nemibala ecacileyo ibalulekile:
Iibhodi ze-LED zangaphandle: Izikrini ezinkulu ze-LED zentengiso kunye neempawu zedijithali zithandwa ngenxa yokukhanya kwazo okuphezulu kunye nokubonakala, nangona ilanga lithe ngqo.
IiNdawo zeMidlalo kunye neeKhonsathi: Izikrini ze-LED zisetyenziswa ngokubanzi kwiindawo zezemidlalo kunye neendawo zekhonsathi ukubonisa umxholo oguqukayo ngokuchaneka kombala ophezulu kunye nokubonakala kude.
Iindonga ze-LED zangaphakathi: Ezi zidla ngokubonwa kumagumbi okulawula, izitudiyo zokusasaza, kunye neendawo zokuthengisa, ezibonelela ngemiboniso ephezulu enesisombululo esihle kakhulu.
5. Ngaba kukho izikrini ze-LED eziSebenzisa i-Backlighting?
Ngokobuchwephesha, ezinye iimveliso ezibhalwe “njengezikrini ze-LED” zisebenzisa ukukhanya kwangasemva, kodwa eneneni ezi ziziboniso ze-LED-backlit LCD. Ezi zikrini zisebenzisa iphaneli ye-LCD ene-LED backlight emva kwayo ukuphucula ukuqaqamba kunye nokusebenza kakuhle kwamandla. Nangona kunjalo, ezi ayizizo iziboniso ze-LED eziyinyani.
Kwizikrini ze-LED zokwenyani, akukho kukhanya kwe-backlight efunekayo, njengoko ii-diode ezikhupha ukukhanya zingumthombo wokukhanya kunye nombala.
6. IiNzuzo zeZikrini ze-LED eziyiNyaniso
Izikrini ze-LED zokwenyani zibonelela ngeengenelo ezininzi eziphambili ngaphezulu kwetekhnoloji ye-backlight yendabuko:
Ukukhanya okuPhezulu: Kuba ipikseli nganye ikhupha ukukhanya kwayo, izikrini ze-LED zinokufikelela kumanqanaba aphezulu okuqaqamba, zizenze zilungele usetyenziso lwangaphakathi nangaphandle.
Uchasaniso oluphuculweyo: Ngokukwazi ukucima ipikseli nganye, izikrini ze-LED zibonelela ngomlinganiselo ongcono wokuchasana kunye nobumnyama obunzulu, ukuphucula umgangatho womfanekiso.
Ukuphumelela kwamandla: Iziboniso ze-LED zinokuba namandla ngakumbi kunezikrini ze-LCD ezikhanyayo, njengoko zisebenzisa amandla kuphela apho kufuneka ukukhanya, kunokukhanyisa isikrini sonke.
Ubomi obude: Ii-LED zihlala zihlala ixesha elide, zihlala zidlula iiyure ezingama-50,000 ukuya kwii-100,000, oku kuthetha ukuba izikrini ze-LED zinokuhlala iminyaka emininzi kunye nokuthotywa okuncinci ekukhanyeni kunye nokusebenza kombala.
Ukuqukumbela
Isishwankathelo, izikrini zokwenyani ze-LED azifuni ukukhanya ngasemva. Ipixel nganye kwisikrini se-LED ivelisa ukukhanya kwayo, isenza isiboniso sizikhanyisele ngokwaso. Le teknoloji ibonelela ngeenzuzo ezininzi, kubandakanya umahluko obalaseleyo, ubumnyama obunzulu, kunye nokukhanya okuphezulu. Nangona kunjalo, kubalulekile ukwahlula phakathi kweziboniso ze-LED zokwenyani kunye ne-LCD-backlit LCDs, njengoko le yokugqibela ifuna ukukhanya ngasemva.
Ukuba ujonge umboniso onomgangatho obalaseleyo womfanekiso, ubomi obude, kunye nokusebenza kakuhle kwamandla, isikrini sokwenyani se-LED lolona khetho lubalaseleyo-akukho kukhanya ngasemva kuyimfuneko!
Ixesha lokuposa: Sep-07-2024