Isibonisi se-LED yidivayisi esebenzisa i-light-emitting diode (ama-LED) njengezinto ezikhipha ukukhanya ukuze kuboniswe imifanekiso, amavidiyo, ukugqwayiza nolunye ulwazi ngezikrini zikagesi. Isibonisi se-LED sinezinzuzo zokukhanya okuphezulu, ukusetshenziswa kwamandla okuphansi, impilo ende, i-engeli yokubuka ebanzi, njll., futhi sisetshenziswa kakhulu ekukhangiseni kwangaphakathi nangaphandle, ezokuthutha, ezemidlalo, ezokuzijabulisa kwamasiko neminye imikhakha. Ukuze uqinisekise umthelela wokubonisa nokonga amandla kwesikrini sesibonisi se-LED, kuyadingeka ukubala indawo yesikrini nokukhanya ngendlela efanele.
1. Indlela yokubala indawo yesikrini yesikrini sokubonisa se-LED
Indawo yesikrini yesibonisi se-LED ibhekisela kusayizi wendawo yayo ephumelelayo yokubonisa, ngokuvamile ngamamitha ayizikwele. Ukuze ubale indawo yesikrini yesibonisi se-LED, amapharamitha alandelayo adinga ukwaziwa:
1. Isikhala samachashazi: ibanga elimaphakathi phakathi kwephikseli ngalinye namaphikseli aseduze, ngokuvamile ngamamilimitha. Ukuba kuncane kokuphakama kwechashazi, ukuphakama kwephikseli ephezulu, ukulungiswa okuphezulu, umphumela wokubonisa ucaca, kodwa izindleko ziphezulu. Ukuphakama kwamachashazi ngokuvamile kunqunywa ngokuya ngesimo sangempela sohlelo kanye nebanga lokubuka.
2. Usayizi wemojula: imojuli ngayinye iqukethe amaphikseli amaningana, okuyiyunithi eyisisekelo yesibonisi se-LED. Usayizi wemojula unqunywa inani lamaphikseli avundlile naqondile, ngokuvamile ngamasentimitha. Isibonelo, imojula ye-P10 isho ukuthi imojula ngayinye inamaphikseli ayi-10 ngokuvundlile futhi mpo, okungukuthi, amaphikseli angu-32×16=512, nosayizi wemojula ngu-32×16×0.1=51.2 wamasentimitha-skwele.
3. Usayizi wesikrini: Sonke isibonisi se-LED sihlukaniswa ngamamojula amaningana, futhi ubukhulu baso bunqunywa inani lamamojula avundlile naqondile, ngokuvamile ngamamitha. Isibonelo, isikrini esinombala ogcwele se-P10 esinobude obungamamitha angu-5 nobude obungamamitha angu-3 kusho ukuthi kunamamojula angu-50/0.32=156 ohlangothini oluvundlile kanye namamojula angu-30/0.16=187 aqonde mpo.
2. Indlela yokubala ukukhanya kwesibonisi se-LED
Ukukhanya kwesibonisi se-LED kubhekisela ekushubeni kokukhanya okukhipha ngaphansi kwezimo ezithile, ngokuvamile ku-candela ngemitha yesikwele (cd/m2). Ukukhanya okuphezulu, ukukhanya kunamandla, ukugqama kuphezulu, futhi kunamandla nekhono lokulwa nokuphazamiseka. Ukukhanya ngokuvamile kunqunywa ngokuya ngendawo yangempela yohlelo lokusebenza kanye ne-engeli yokubuka.
1. Ukukhanya kwesibani esisodwa se-LED: ukukhanya okukhishwa isibani se-LED sombala ngamunye, ngokuvamile nge-millicandela (mcd). Ukukhanya kwesibani esisodwa se-LED kunqunywa ngezinto zayo, inqubo, izici zamanje nezinye, futhi ukukhanya kwezibani ze-LED zemibala ehlukene nakho kuhlukile. Isibonelo, ukukhanya kwezibani ze-LED ezibomvu kuvamise ukuba ngu-800-1000mcd, ukukhanya kwezibani ze-LED eziluhlaza kuvamise ukuba ngu-2000-3000mcd, futhi ukukhanya kwezibani ze-LED eziluhlaza ngokuvamile kungu-300-500mcd.
2. Ukukhanya kwephikseli ngayinye: Iphikseli ngalinye lakhiwe amalambu e-LED amaningana anemibala ehlukene, futhi amandla okukhanya akhishwa yiyo iyisamba sokukhanya kombala ngamunye wokukhanya kwe-LED, ngokuvamile ku-candela (cd) njengeyunithi. Ukukhanya kwephikseli ngayinye kunqunywa ukwakheka nokulingana kwayo, futhi ukukhanya kwephikseli ngayinye yezinhlobo ezahlukene zezibonisi ze-LED nakho kuhlukile. Isibonelo, iphikseli ngayinye yesikrini esinombala ogcwele we-P16 iqukethe amalambu angu-2 abomvu, 1 aluhlaza okotshani, kanye no-1 aluhlaza okwesibhakabhaka. Uma kusetshenziswa u-800mcd obomvu, 2300mcd oluhlaza, kanye namalambu aluhlaza we-LED angu-350mcd, ukukhanya kwephikseli ngayinye kungu-(800×2 +2300+350)=4250mcd=4.25cd.
3. Ukukhanya sekukonke kwesikrini: ukukhanya okukhishwa yiso sonke isibonisi se-LED siyisamba sokukhanya kwawo wonke amaphikseli ahlukaniswe ngendawo yesikrini, ngokuvamile ku-candela ngemitha yesikwele (cd/m2) njengeyunithi. Ukukhanya okuphelele kwesikrini kunqunywa ngokulungiswa kwaso, imodi yokuskena, ukushayela kwamanje nezinye izici. Izinhlobo ezahlukene zezikrini ze-LED zinokugqama okuhlukile kukonke. Isibonelo, ukulungiswa kwesikwele ngasinye sesikrini esinombala ogcwele we-P16 ngu-3906 DOT, futhi indlela yokuskena iwukuskena okungu-1/4, ngakho ukukhanya kwaso okuphezulu kwethiyori ngu (4.25×3906/4)=4138.625 cd/m2.
3. Isifinyezo
Lesi sihloko sethula indlela yokubala indawo nokukhanya kwesikrini se-LED, futhi sinikeza amafomula ahambisanayo nezibonelo. Ngalezi zindlela, imingcele efanelekile yokubonisa i-LED ingakhethwa ngokuya ngezidingo nezimo zangempela, futhi umphumela wokubonisa nokusebenza kahle kokonga amandla kungathuthukiswa. Impela, ezinhlelweni zokusebenza, ezinye izici zidinga ukucatshangelwa, njengomthelela wokukhanya okuzungezile, izinga lokushisa nomswakama, ukulahlwa kokushisa, njll. ekusebenzeni nempilo yesibonisi se-LED.
Isibonisi se-LED yikhadi lebhizinisi elihle emphakathini wanamuhla. Ayikwazi ukubonisa ulwazi kuphela, kodwa futhi idlulisele isiko, idale umoya futhi ithuthukise isithombe. Kodwa-ke, ukuze uthole umphumela omkhulu wesibonisi se-LED, kuyadingeka ukwazi izindlela ezithile zokubala eziyisisekelo, ukudizayina ngokunengqondo nokukhetha indawo yesikrini nokukhanya. Kungale ndlela kuphela lapho singaqinisekisa ukuboniswa okucacile, ukonga amandla, ukuvikelwa kwemvelo, ukuqina kanye nomnotho.
Isikhathi sokuthumela: Aug-24-2023
