Ukuze kuphunyezwe eyona mpembelelo intle yokubonisa, izikrini ze-LED ezikumgangatho ophezulu ngokubanzi kufuneka zilinganiswe ukuqaqamba kunye nombala, ukuze ukuqaqamba kunye nokuhambelana kombala kwesikrini sokubonisa i-LED emva kokukhanyisa kungafikelela kokona kulungileyo.Ke kutheni isikrini se-LED esikumgangatho ophezulu kufuneka silinganiswe, kwaye kufuneka silinganiswe njani?
Inxalenye.1
Okokuqala, kuyimfuneko ukuqonda iimpawu ezisisiseko zokubona iliso lomntu ngokuqaqamba.Obona kukhanya bubonwa liliso lomntu abukho ngokuhambelana nokukhanya okukhutshwa yiUkubonisa isikrini se-LED, kodwa kunokuba ubudlelwane non-linear.
Umzekelo, xa iliso lomntu lijonge isikrini se-LED esinokukhanya kokwenyani kwe-1000nit, sinciphisa ukuqaqamba ukuya kwi-500nit, okukhokelela ekunciphiseni kokukhanya okuyi-50%.Nangona kunjalo, ukukhanya okubonwayo kweliso lomntu akunciphi ngokulandelelana ukuya kwi-50%, kodwa kuphela kwi-73%.
Ijika elingenamda phakathi kokukhanya okubonwayo kweliso lomntu kunye nokuqaqamba kwangempela kwesikrini sokubonisa i-LED kubizwa ngokuba yi-gamma curve (njengoko kubonisiwe kuMfanekiso 1).Ukusuka kwigophe le-gamma, kunokubonwa ukuba imbono yokutshintsha kokukhanya ngeso lomntu ixhomekeke, kwaye eyona amplitude yokutshintsha kokukhanya kwiziboniso ze-LED azihambelani.
Icandelo.2
Okulandelayo, makhe sifunde ngeempawu zokutshintsha kombono wombala kwiliso lomntu.Umzobo wesi-2 yitshathi ye-chromaticity yeCIE, apho imibala inokubonakaliswa ngolungelelwaniso lombala okanye ukukhanya kokukhanya.Ngokomzekelo, ubude be-wavelength yesikrini esiqhelekileyo se-LED yi-nanometers ye-620 ye-LED ebomvu, i-525 nanometers ye-LED eluhlaza, kunye ne-470 nanometers ye-LED eluhlaza.
Ngokubanzi, kwindawo yombala ofanayo, ukunyamezela iliso lomntu kumahluko wombala yi-Δ Euv=3, ekwaziwa njengomahluko obonakalayo wombala.Xa umehluko wombala phakathi kwe-LED ungaphantsi kweli xabiso, kuqwalaselwa ukuba umehluko awubalulekanga.Xa Δ Euv>6, ibonisa ukuba iliso lomntu libona umahluko omkhulu phakathi kwemibala emibini.
Okanye kukholelwa ngokubanzi ukuba xa umahluko wamaza umkhulu kune-nanometers ezi-2-3, iliso lomntu liyawuva umahluko wombala, kodwa ubuntununtunu beliso lomntu kwimibala eyahlukeneyo lusahluka, kunye nomahluko wobude obunokubonwa liliso lomntu. kuba imibala eyahlukileyo ayilungiswanga.
Ngokombono wepatheni yokwahluka kokukhanya kunye nombala ngeso lomntu, izikrini zokubonisa i-LED kufuneka zilawule ukuhlukana kokukhanya kunye nombala ngaphakathi koluhlu olungenakubonwa liso lomntu, ukuze iliso lomntu likwazi ukuva ukuhambelana kakuhle ekukhanyeni kunye nokukhanya. umbala xa ubukele izikrini zokubonisa i-LED.Ukukhanya kunye noluhlu lwemibala yezixhobo zokupakisha ze-LED okanye ii-chips ze-LED ezisetyenziswe kwizikrini zokubonisa i-LED zinefuthe elibalulekileyo ekuhambisaneni komboniso.
Icandelo.3
Xa usenza izikrini zokubonisa i-LED, izixhobo zokupakisha ze-LED ezinokukhanya kunye nobude be-wavelength ngaphakathi koluhlu oluthile lunokukhethwa.Ngokomzekelo, izixhobo ze-LED ezinokukhanya okukhanyayo ngaphakathi kwe-10% -20% kunye ne-wavelength range ngaphakathi kwe-nanometers ye-3 ingakhethwa kwimveliso.
Ukukhetha izixhobo ze-LED ezinoluhlu oluncinci lokukhanya kunye ne-wavelength inokuqinisekisa ngokusisiseko ukuhambelana kwesikrini sokubonisa kunye nokufezekisa iziphumo ezilungileyo.
Nangona kunjalo, uluhlu olukhanyayo kunye noluhlu lwe-wavelength yezixhobo zokupakisha ze-LED eziqhelekileyo ezisetyenziswa kwizikrini zokubonisa i-LED zinokuba zikhulu kunoluhlu olufanelekileyo olukhankanywe ngasentla, olunokubangela ukuba umahluko wokuqaqamba kunye nombala wee-chips ze-LED ezikhupha ukukhanya zibonakale emehlweni abantu. .
Enye imeko kukupakishwa kwe-COB, nangona ukukhanya okungenayo kunye nobude be-chips ezikhupha ukukhanya kwe-LED bunokulawulwa ngaphakathi koluhlu olufanelekileyo, kunokukhokelela ekukhanyeni okungahambelaniyo kunye nombala.
Ukucombulula oku kungahambelani kwizikrini zokubonisa i-LED kunye nokuphucula umgangatho wokubonisa, i-point by point correction technology ingasetyenziswa.
Inqaku ngenqaku ukulungiswa
Ulungiso lwenqaku nenqaku yinkqubo yokuqokelela ukuqaqamba kunye nedatha yechromaticity kwipikseli nganye encinci kwi-Ukubonisa isikrini se-LED, ukubonelela ngolungiso lwemiqobo yombala wesiseko ngasinye sepikseli esezantsi, kunye nokuzondla emva kwinkqubo yolawulo yesikrini sokubonisa.Inkqubo yolawulo isebenzisa i-coefficients yokulungisa ukuqhuba iyantlukwano yesiseko sombala ngamnye we-pixel encinci, ngaloo ndlela iphucula ukufana kokukhanya kunye ne-chromaticity kunye nokunyaniseka kombala wesikrini sokubonisa.
Isishwankathelo
Imbono yokutshintsha kokukhanya kwee-chips ze-LED ngeso lomntu ibonisa ubudlelwane obungahambelaniyo kunye notshintsho oluchanekileyo lokukhanya kwee-chips ze-LED.Eli jiko libizwa ngokuba ligophe legamma.Uvakalelo lweliso lomntu kumaza ahlukeneyo ombala ahlukile, kwaye izikrini zokubonisa i-LED zineziphumo ezingcono zokubonisa.Ukukhanya kunye nokwahlukana kombala kwesikrini sokubonisa kufuneka kulawulwe ngaphakathi kwinqanaba elingenakubonwa iliso lomntu, ukwenzela ukuba izikrini zokubonisa i-LED zingabonisa ukuhambelana kakuhle.
Ukukhanya kunye nobude bezixhobo ezipakishweyo ze-LED okanye i-COB epakishwe iitshiphusi ze-LED ezikhupha ukukhanya zinoluhlu oluthile.Ukuze kuqinisekiswe ukuhambelana kakuhle kwezikrini zokubonisa i-LED, i-point by point correction technology ingasetyenziselwa ukufezekisa ukukhanya okuhambelanayo kunye ne-chromaticity yezikrini eziphezulu ze-LED kunye nokuphucula umgangatho wokubonisa.
Ixesha lokuposa: Mar-11-2024
