Lub ci ci ntawm lub vijtsam LED hluav taws xob tuaj yeem txiav txim siab siv cov hauv qab no, thaum tseem xav txog cov qauv ci ntsa iab rau sab hauv tsev thiab sab nraum zoov:
I. LED Electronic Display Screen Brightness Standards
Sab Hauv Tsev Tag Nrho- Xim LED Zaub Cov Ntsiab Lus: Cov kev xav tau ci ntsa iab yog feem ntau siab dua 800 cd / m² kom paub meej cov duab pom tseeb nyob rau hauv cov teeb pom kev zoo sab hauv.
Sab Nraud Tag Nrho- Xim LED Zaub Cov Ntsiab Lus: Cov kev xav tau ci ntsa iab yuav tsum ncav cuag siab dua 6000 cd / m² txhawm rau tiv nrog cov teeb pom kev zoo sab nraum zoov xws li lub teeb muaj zog thiab teeb pom kev zoo, zam cov duab tsis pom kev.
II. Txoj Kev Txiav Txim Siab
1. Yooj yim ntsuas lub teeb ntsuas kev tsim kho thiab siv
Tsim kom muaj 3V DC fais fab mov:
Siv ob lub pob roj teeb txuas nrog hauv cov koob, ntxig rau hauv lub raj yas me me, thiab coj tawm ob qhov kev sojntsuam raws li qhov zoo thiab qhov tsis zoo.
Siv lub caij nplooj ntoos hlav-loaded hloov thaum kawg. Thaum nias, qhov zoo thiab qhov tsis zoo sojntsuam hu rau LED pins, tsim lub zog hluav taws xob.
Sib sau ua ke Photoresistor Light Measuring Device:
Txuas cov xov hlau nyias mus rau ob qhov kawg ntawm lub photoresistor thiab txuas lawv mus rau qhov kev sojntsuam ntawm digital multimeter.
Teem lub multimeter mus rau 20KΩ ntau yam (kho raws li tus photoresistor specifications kom paub tseeb nyeem ntawv).
Lub hauv paus ntsiab lus: Lub teeb muaj zog dua, qhov qis dua qhov tsis kam ntawm photoresistor, thiab qis dua qhov kev nyeem ntawv multimeter; conversely, qhov muaj zog lub teeb, qhov siab dua qhov tsis kam, thiab qhov kev nyeem ntawv siab dua.
Ntsuas LED Brightness:
Teeb ib lub LED nrog 3V fais fab mov, thiab tso nws lub teeb -emitting taub hau ncaj qha tawm tsam tus photoresistor lub photosensitive nto.
Sau cov ntawv nyeem multimeter. Los ntawm kev sib piv cov kev nyeem ntawm LEDs sib txawv, koj tuaj yeem txiav txim siab lawv qhov ci ci.
2. Kev ntsuas ntsuas ntsuas (pom zoo)
Siv lub ntsuas ntsuas luminance: ncaj qha ntsuas tus nqi ci ntsa iab (unit: cd / m2) ntawm ib qho chaw tshwj xeeb ntawm lub vijtsam npo, muab cov txiaj ntsig raug dua.
Spectroradiometer: Txheeb xyuas qhov sib xws ntawm qhov ci ntsa iab, haum rau cov xwm txheej uas yuav tsum muaj cov duab zoo (xws li theem keeb kwm yav dhau thiab cov ntawv tshaj tawm).
III. Ceev faj rau Kev Txiav Txim Siab
Ambient Light Interference: Thaum ntsuas sab hauv tsev, lwm qhov teeb pom kev zoo yuav tsum raug muab tua kom tsis txhob muaj teeb pom kev zoo rau kev nyeem ntawv; Kev ntsuas sab nraum zoov yuav tsum tau noj nyob rau hnub tshav ntuj thaum tav su lossis ib lub sijhawm raws li cov teeb pom kev zoo ntawm kev siv scenario.
Measurement Point Selection: Sib npaug xaiv ntau qhov chaw ntawm lub vijtsam zaub (xws li qhov chaw nruab nrab thiab plaub fab) rau kev ntsuas, thiab xam tus nqi nruab nrab los ntsuas qhov ci ntsa iab.
Dynamic Brightness Adjustment: Qee cov lus qhia txhawb kev hloov kho qhov ci tsis siv neeg raws li lub teeb pom kev nyob ib puag ncig (xws li, lub teeb pom kev ntse). Kev ntsuas yuav tsum tau ua nyob rau hauv hom qauv kom tsis txhob ua yuam kev.
IV. Lwm Yam Qhov Ntsuas Qhov Ntsuas Zoo
1. Qib Greyscale
Txhais: Tus naj npawb ntawm brightness theem ntawm blackest mus whitest uas tib neeg lub qhov muag muaj peev xwm paub qhov txawv nyob rau hauv ib daim duab.
Qhov tseem ceeb: qib siab greyscale ua rau cov xim hloov tau zoo dua thiab qhov chaw xim loj dua.
Test Method: Siv cov software tshwj xeeb (xws li LED tester) los tso saib cov duab grayscale gradient thiab soj ntsuam cov qib uas tib neeg lub qhov muag muaj peev xwm paub qhov txawv.
High-cov lus pom zoo feem ntau muaj 256 lossis ntau dua qib grey, nrog qee cov khoom siab - kawg txog 1024 qib.
2. Saib lub kaum sab xis
Txhais: Qhov siab tshaj plaws ntawm cov ces kaum uas cov duab tseem pom tseeb thiab xim raug thaum saib los ntawm cov lus qhia sib txawv.
Standard: High-zoo LED zaub muaj lub kaum sab xis saib ntawm 160 degrees lossis ntau dua (kab rov tav / ntsug).
Test Method: Saib cov duab los ntawm ncaj qha rau pem hauv ntej ntawm cov zaub thiab los ntawm sab laug thiab sab xis, kaw cov ces kaum ntawm cov xim hloov los yog brightness lwj mus txog 50%.
V. Summary
Lub hauv paus ntawm Kev Txiav Txim Siab: Ntsuas qhov screen ci ci siv lub teeb pom kev yooj yim lossis cov cuab yeej tshaj lij, thiab muab piv rau cov qauv hauv tsev thiab sab nraum zoov (800 cd / m² lossis siab dua 6000 cd / m²).
Kev Ntsuas Kev Ntsuas: Ua ke cov qib grey nplai, saib cov ces kaum, thiab lwm yam ntsuas los ntsuas qhov kev tshuaj ntsuam xyuas qhov zoo thiab xyuas kom nws ua tau raws li qhov xav tau ntawm kev siv scenario (xws li kev tshaj tawm thiab cov ntaub ntawv qhia).
Cov Lus Qhia Txog Kev Ua Haujlwm: Tsis yog- cov neeg siv kev tshaj lij tuaj yeem ua qhov tseem ceeb ntawm kev siv lub ntsuas hluav taws xob rau kev ntsuas ceev, lossis tiv tauj cov chaw tsim khoom kom tau txais daim ntawv tshaj tawm kev xeem los txheeb xyuas qhov tseeb ntawm qhov tsis raug.
