Don cimma sakamako mafi kyawun nuni, manyan allon nunin LED masu inganci gabaɗaya suna buƙatar daidaitawa don haske da launi, ta yadda haske da daidaiton launi na allon nuni na LED bayan haskakawa zai iya kaiwa mafi kyau.Don haka me yasa allon nunin LED mai inganci ya buƙaci a daidaita shi, kuma ta yaya ake buƙatar daidaita shi?
Sashe.1
Da fari dai, wajibi ne a fahimci ainihin halaye na fahimtar idon ɗan adam na haske.Haƙiƙanin haske da idon ɗan adam ke fahimce shi ba shi da alaƙa ta layi da haske da ke fitowaLED nuni allon, sai dai alakar da ba ta kai tsaye ba.
Misali, idan idon ɗan adam ya kalli allon nunin LED tare da ainihin haske na 1000nit, muna rage haske zuwa 500nit, yana haifar da raguwar 50% a ainihin haske.Duk da haka, hasken da aka tsinkayi na idon ɗan adam baya raguwa a layi zuwa 50%, amma kawai zuwa 73%.
Maɓallin da ba na layi ba tsakanin tsinkayen haske na idon ɗan adam da ainihin hasken allon nunin LED ana kiransa lanƙwan gamma (kamar yadda aka nuna a hoto 1).Daga madaidaicin gamma, ana iya ganin cewa fahimtar canje-canjen haske ta idon ɗan adam yana da ɗan ƙanƙara, kuma ainihin girman canjin haske akan nunin LED bai daidaita ba.
Sashe.2
Na gaba, bari mu koyi game da halayen canjin tsinkayen launi a cikin idon ɗan adam.Hoto 2 ginshiƙi ne na CIE chromaticity, inda za'a iya wakilta launuka ta hanyar daidaita launi ko tsayin haske.Misali, tsawon nunin nunin LED na kowa shine nanometer 620 don LED ja, 525 nanometer don koren LED, da nanometer 470 don LED shuɗi.
Gabaɗaya magana, a cikin sararin launi iri ɗaya, haƙurin idon ɗan adam don bambancin launi shine Δ Euv=3, wanda kuma aka sani da bambancin launi na gani.Lokacin da bambancin launi tsakanin LEDs ya kasance ƙasa da wannan darajar, ana la'akari da cewa bambancin ba shi da mahimmanci.Lokacin da Δ Euv> 6, yana nuna cewa idon ɗan adam yana fahimtar bambancin launi mai tsanani tsakanin launuka biyu.
Ko kuma an yi imani da cewa idan bambancin raƙuman ruwa ya fi nanometer 2-3, idon ɗan adam zai iya gane bambancin launi, amma har yanzu hankalin idon ɗan adam ga launi daban-daban ya bambanta, kuma bambancin tsayin da idon ɗan adam zai iya fahimta. don launuka daban-daban ba a gyara su ba.
Daga mahangar bambancin yanayin haske da launi ta idon ɗan adam, allon nunin LED yana buƙatar sarrafa bambance-bambancen haske da launi a cikin kewayon da idon ɗan adam ba zai iya ganewa ba, ta yadda idon ɗan adam zai iya jin daidaito mai kyau a cikin haske da haske. launi lokacin kallon allon nunin LED.Hasken haske da launi na na'urorin marufi na LED ko kwakwalwan LED da aka yi amfani da su a cikin nunin nunin LED suna da tasiri mai mahimmanci akan daidaiton nuni.
Sashe.3
Lokacin yin nunin nunin LED, ana iya zaɓar na'urorin marufi na LED tare da haske da tsayin raƙuman ruwa a cikin takamaiman kewayon.Misali, ana iya zaɓar na'urorin LED tare da tazarar haske tsakanin 10% -20% da kewayon tsayi tsakanin nanometer 3 don samarwa.
Zaɓin na'urorin LED tare da kunkuntar kewayon haske da tsayin tsayi na iya tabbatar da daidaiton allon nuni kuma cimma sakamako mai kyau.
Duk da haka, kewayon haske da tsayin daka na na'urorin marufi na LED da aka saba amfani da su a cikin nunin nunin LED na iya zama mafi girma fiye da madaidaicin kewayon da aka ambata a sama, wanda zai iya haifar da bambance-bambance a cikin haske da launi na kwakwalwan kwamfuta masu fitar da hasken LED suna iya gani ga idon ɗan adam. .
Wani yanayin shine marufi na COB, kodayake haske mai shigowa da tsayin igiyoyi masu fitar da hasken LED ana iya sarrafa su a cikin kewayon manufa, yana iya haifar da haske da launi mara daidaituwa.
Don warware wannan rashin daidaituwa a cikin nunin nunin LED da haɓaka ingancin nuni, ana iya amfani da fasahar gyara aya ta aya.
Gyara maki ta maki
gyare-gyaren aya ta batu shine tsarin tattara bayanai masu haske da chromaticity ga kowane ƙaramin pixel akan waniLED nuni allon, samar da gyare-gyaren gyare-gyare ga kowane ƙananan launi mai launi, da kuma ciyar da su zuwa tsarin sarrafawa na allon nuni.Tsarin sarrafawa yana amfani da matakan gyara don fitar da bambance-bambancen kowane yanki na launi na tushe, don haka inganta daidaituwar haske da chromaticity da amincin launi na allon nuni.
Takaitawa
Hane-hane na canje-canjen haske na kwakwalwan LED ta idon ɗan adam yana nuna alaƙar da ba ta dace ba tare da ainihin canjin haske na kwakwalwan LED.Ana kiran wannan lanƙwan gamma curve.Hankalin idon ɗan adam zuwa tsayin launi daban-daban ya bambanta, kuma allon nunin LED yana da mafi kyawun tasirin nuni.Ya kamata a sarrafa haske da bambance-bambancen launi na allon nuni a cikin kewayon da idon ɗan adam ba zai iya ganewa ba, ta yadda allon nunin LED zai iya nuna daidaito mai kyau.
Haskakawa da tsawon na'urorin na'urorin LED ko fakitin COB masu fitar da haske na LED suna da takamaiman kewayon.Don tabbatar da daidaiton nunin nunin LED, za'a iya amfani da fasahar gyara aya ta aya don cimma daidaiton haske da chromaticity na manyan nunin nunin LED da haɓaka ingancin nuni.
Lokacin aikawa: Maris 11-2024
