Ukuze uzuze umphumela omuhle kakhulu wokubonisa, izikrini zokubonisa ze-LED ezisezingeni eliphakeme ngokuvamile zidinga ukuthi zilinganiswe ngokukhanya nombala, ukuze ukukhanya nokukhanya kombala nokuvumelana kombala wesikrini sokubonisa ngemuva kokukhanya kungafinyelela okungcono kakhulu. Manje kungani isikrini esisezingeni eliphakeme se-LED sibonisa ukulinganiswa, futhi kudingeka kanjani ukuba silinganiswe?
Ingxenye. 1
Okokuqala, kuyadingeka ukuqonda izici eziyisisekelo zokubonwa kwamehlo komuntu. Ukugqama kwangempela okucatshangelwe yiso lomuntu akuhlobene kahle nokukhanya okukhishwe yiIsikrini sokubonisa, kodwa kunalokho ubudlelwano obungeyona umugqa.
Isibonelo, lapho iso lomuntu libukeka esikrinini sokubonisa esiholwa ngokukhanya kwangempela kwe-1000nit, sinciphisa ukukhanya ku-500nit, okuholela ekunciphiseni okungu-50% ekukhazimuleni kwangempela. Kodwa-ke, ukugqama okucatshangelwe kweso lomuntu akwehlile ngokuqondile ku-50%, kepha kungama-73% kuphela.
Ijika elingelona umugqa phakathi kokukhanya okucatshangelwe kweso lomuntu nokukhanya kwangempela kwesikrini sokubonisa esiholwa kubizwa ngokuthi i-gamma curve (njengoba kukhonjisiwe kuMfanekiso 1). Ukusuka kwi-Gamma Curve, kungabonakala ukuthi umbono wokukhanya kokukhanya kweso lomuntu uyakuqondakala, futhi ukukhuphuka kwangempela kokushintsha kokukhanya kokuboniswa okuholela.
Ingxenye. 2
Okulandelayo, ake sifunde ngezimpawu zoshintsho lokuqonda umbala esweni lomuntu. Umdwebo 2 yishadi leCie Chromatity, lapho imibala ingavezwa khona ngokuxhumanisa kombala noma i-wavelength ekhanyayo. Isibonelo, i-wavelength yesikrini esijwayelekile sokubonisa isibonisi yi-620 nanometers ye-LED ebomvu, ama-nanometers angama-525 e-LED eluhlaza, nama-nanometer angama-470 we-LED eluhlaza okwesibhakabhaka.
Ngokuvamile, endaweni enomfaniswano yombala, ukubekezelela kwamehlo komuntu ngombala umbala ngu-Δ euv = 3, owaziwa nangokuthi umehluko obonakalayo obonakalayo. Lapho umehluko wombala phakathi kwama-LED ungaphansi kwaleli nani, kubhekwa ukuthi umehluko awubalulekile. Lapho i-Δ euv> 6, kukhombisa ukuthi iso lomuntu libona umehluko omkhulu wombala phakathi kwemibala emibili.
Noma ngokuvamile kuzwakala ukuthi uma umehluko we-wavengethth mkhulu kune-2-3 nama-nanometers, iso lomuntu lingabona umehluko wombala, kepha umuzwa weso lomuntu emigqeni ehlukene ahlukane nemibala ehlukene ayiqondile.
Ngokombono wephethini yokukhanya kokukhanya nombala ngeso lomuntu, izikrini zokubonisa zomuntu zidinga ukulawula umehluko ekukhazimuleni nombala lapho iso lomuntu alibonanga, ukuze iso lomuntu lizwe ukungaguquguquki okuhle ekukhazimuleni nombala lapho ubuka izikrini zokubonisa. Ukukhanya kanye nombala wombala wamadivayisi wokupakisha we-LED noma ama-Chips aholwa ama-LED asetshenziswa kwizikrini zokubonisa eziholwayo zinomthelela omkhulu ekuvumelaneni kwesibonisi.
Ingxenye. +
Lapho wenza izikrini zokubonisa ze-LED, amadivaysi e-LED aholwa ngokukhanya kanye ne-wavelength ngaphakathi kwebanga elithile lingakhethwa. Isibonelo, amadivaysi aholwa ngokukhanya okukhanyayo ngaphakathi kwe-10% -20% kanye ne-wavelength ngaphakathi kwama-nanometers ama-3 ama-nanometer angakhethwa ukukhiqizwa.
Ukukhetha amadivaysi e-LED ngobubanzi obuncane bokukhanya kanye ne-wavelength ngokuyisisekelo kungaqinisekisa ukuvumelana kwesikrini sokubonisa futhi uzuze imiphumela emihle.
Kodwa-ke, uhla lokukhanya kanye nobubanzi be-wavelength lamadivayisi wokufaka e-LED asetshenziswa kakhulu kwizikrini zokubonisa eziholwayo angaba makhulu kunebanga elifanele elishiwo ngenhla, okungahle kuholele umehluko ekukhazimuleni nombala wama-chips aholwa ukukhanya.
Esinye isimo ukupakishwa kwe-cob, yize ukukhanya okungenayo kanye nokuqina kwama-chips aholwa ukukhanya okukhanyayo kungalawulwa ngaphakathi kwebanga elifanele, kungaholela ekugqameni okungahambelani nombala.
Ukuxazulula lokhu kungahambisani nezikrini zokubonisa ze-LED futhi uthuthukise ikhwalithi yokubonisa, iphuzu lobuchwepheshe bokulungiswa kwephuzu bungasetshenziswa.
Khomba ngokulungiswa kwamaphuzu
Iphuzu ngokulungiswa kwamaphuzu inqubo yokuqoqa ukugqama kanye nedatha ye-chromatity ye-pixel ngayinye ye-anIsikrini sokubonisa, Ukuhlinzeka ngama-coefficients okulungiswa nge-Pixel ngayinye ye-Base Colour Sub Pixel, futhi uyondla emuva ohlelweni lokulawula lwesikrini sokubonisa. Uhlelo lokulawula lusebenzisa ama-coefficiefres okulungiswa ukushayela umehluko we-Pixel ngayinye ye-Base Colour Sub Pixel, ngaleyo ndlela uthuthukise ukufana kokukhanya kanye ne-chromatic kanye nokuthembeka kombala kwesikrini sokubonisa.
Ukubeka kafushane
Umbono wokushintshwa kokukhanya kwama-chip we-LED ngeso lomuntu ukhombisa ubudlelwano obungeyona umugqa noshintsho lwangempela lokukhanya kwama-chip we-LED. Le curve ibizwa nge-gamma curve. Ukuzwela kweso lomuntu kuma-wavelength ahlukene ombala kuhlukile, futhi izikrini zokubonisa eziholwayo zinemiphumela engcono yokubonisa. Ukukhanya nombala wehluko wesikrini sokubonisa kufanele kulawulwe phakathi kwebanga elithi iso lomuntu alikwazi ukubona, ukuze izikrini zokubonisa eziholwayo zingakhombisa ukungaguquguquki okuhle.
Ukukhanya kanye nokuqina kwamadivayisi ahlanganisiwe ama-LED noma ama-cob ahlanganiswe ama-chips akhipha ukukhanya okukhanyayo anebanga elithile. Ukuze uqinisekise ukuvumelana okuhle kwezikrini zokubonisa ze-LED, iphoyinti ngobuchwepheshe bokulungiswa kwephuzu bungasetshenziswa ukufezekisa ukugqama okungaguquki kanye chromaticty of screens eziphezulu zokubonisa futhi uthuthukise ikhwalithi yokubonisa.
Isikhathi sePosi: Mar-11-2024
