I. Yuav tsum tau kho xim
(1) Qhov sib txawv ntawm tus kheej hauv LED Chips: Cov txheej txheem tsim khoom ntawm LED chips ua rau muaj qhov sib txawv ntawm qhov ci thiab xim ntawm txhua LED nti. Txawm tias nyob rau hauv tib pawg, qhov sib txawv ntawm qhov ci tuaj yeem ncav cuag 10% -20%, thiab chromaticity sib txawv tuaj yeem tshaj 0.01. Qhov kev sib cais no tuaj yeem ua rau muaj teeb meem xws li cov xim thaiv thiab qhov ci / tsaus nti hauv cov duab LED mobile, ua rau muaj kev cuam tshuam loj rau kev pom. Piv txwv li, liab LEDs feem ntau muaj qis dua, thaum ntsuab thiab xiav LEDs muaj qhov ci dua; tsis muaj kev kho, qhov no tuaj yeem ua rau xim tsis sib xws.
(2) Kev ua yuam kev thaum lub sij hawm tsim khoom thiab siv: Cov yam ntxwv xws li module sib dhos precision, daim npog qhov ncauj flatness, thiab tsis sib xws thaum tshav kub kub dissipation tuaj yeem ua kom muaj qhov sib txawv ntawm LED. Piv txwv li, kev ua haujlwm tsis raug tuaj yeem ua rau tsis sib xws ntawm qhov sib txawv ntawm LED boards, ua rau cov kab ci ntsa iab lossis tsaus. Nyob rau lub sijhawm ntev - siv sijhawm ntev, LEDs lwj ntawm tus nqi sib txawv (kev ci ntsa iab los ntawm 3%-5% txhua xyoo, thiab chromaticity maj mam hloov). Yog tias tsis muaj kev kho, lub xov tooj ntawm tes LED yuav dhau los ua "distorted" tom qab 1-2 xyoos, txo lawv cov nqi lag luam.
(3) Cov kev xav tau nruj heev ntawm siab-Cov ntawv thov kawg: Hauv kev tshaj tawm, kev ua yeeb yam theem, thiab kev soj ntsuam, cov neeg siv tau nce siab dua cov kev xav tau rau cov khoom zoo. Piv txwv li, loj-kev ua yeeb yam loj lossis cov xwm txheej kis las nyob yuav tsum muaj cov ntxaij vab tshaus kom muaj xim zoo ib yam los ntawm qhov sib txawv saib, thiab cov chaw saib xyuas yuav tsum tau ua kom zoo greyscale kom tsis txhob muaj cov ntaub ntawv tsis raug. Point-los ntawm-point calibration thev naus laus zis tuaj yeem txhim kho qhov ci ntsa iab ntawm cov xov tooj ntawm tes splicing LED zaub mus rau ntau dua 98%, ua kom tau raws li qhov xav tau ntawm siab -kawg scenarios.
II. Cov txheej txheem thiab voj voog ntawm Xim Calibration
(1) Basic Calibration Cov kauj ruam:
White Balance Calibration: Nkag mus rau tag nrho cov teeb liab dawb (RGB qhov tseem ceeb 255, 255, 255), siv lub colorimeter los ntsuas cov chromaticity coordinates thiab brightness ntawm qhov chaw nruab nrab ntawm lub xov tooj ntawm tes splicing LED zaub, kho cov liab, ntsuab, thiab xiav tsav tam sim no los yog PWM lub luag hauj lwm cycles coj tus dawb point ze rau lub hom phiaj tus nqi 65, 0. sib xws ntawm qib greyscale sib txawv. Gamma Calibration: Muab cov qauv sib txawv grayscale kuaj (feem ntau ntawm 0 txog 255, nrog rau 16 lub sijhawm), ntsuas qhov ci thiab chromaticity ntawm txhua greyscale, thiab kho cov yam ntxwv ntawm txhua channel siv lub rooj saib (LUT) kom tag nrho gamma tus nqi ze rau 2.2 (sRGB tus qauv), thiab xyuas kom meej tias cov gamma nkhaus ntawm txhua qhov kev sib tw ntawm LED teeb.
Xim Gamut Calibration: Ntsuas cov chromaticity coordinates ntawm peb lub ntsiab xim (liab, ntsuab, thiab xiav) thiab lwm yam xim (cyan, magenta, thiab daj), piv lawv nrog lub hom phiaj xim gamut (xws li sRGB, Adobe RGB, thiab lwm yam), kho cov xim kev sib raug zoo los ntawm matrix transformation los yog 3D LUT, txheeb xyuas qhov tseeb ntawm cov xim, thiab qhov sib npaug ntawm cov xim thiab gamut. raug.
(2) Advanced Calibration Technologies:
Multi-point Uniformity Calibration: Ua ib tus neeg calibration rau ntau qhov chaw ntawm mobile LED splicing zaub los daws cov teeb meem xim sib txawv hauv zos.
Dynamic Calibration Technology: Saib xyuas lub teeb pom kev ntawm lub sijhawm ntawm lub sijhawm tiag tiag, kwv yees qhov ntsuas ntawm lub teeb tawg thiab cia li them nyiaj, ncua lub neej ntawm lub xov tooj ntawm tes LED splicing zaub ntau dua 30%.
(3) Calibration Cycle Recommendation:
Daim Ntawv Thov Kev Ua Haujlwm: Txhua 3-6 lub hlis. Daim Ntawv Thov Kev Lag Luam: Txhua 6-12 lub hlis.
Yog tias pom cov xim hloov pauv tshwm sim: Tam sim ntawd rov kho lub mobile LED zaub.
Yog ambient kub hloov siab tshaj 15℃: Kos lub calibration xwm txheej ntawm lub mobile LED zaub.
Hauv cov ntsiab lus, peb tuaj yeem pom tau tias kev ntsuas xim tsis tu ncua ntawm cov xov tooj ntawm tes LED tsis yog xaiv tau, tab sis qhov kev ntsuas tseem ceeb kom ntseeg tau ntev - lub sijhawm ruaj khov thiab siab - cov zaub zoo. Tsis tu ncua calibration zoo daws cov teeb meem xim tshwm sim los ntawm ib tug neeg sib txawv nyob rau hauv LED chips, ntau tsim thiab siv yuam kev, thiab ib puag ncig yam, kom ntseeg tau tias lub mobile LED zaub ib txwm nthuav tawm qhov tseeb, vibrant, thiab xim xim, ua tau raws li qhov xav tau ntawm kev pom kev sib txawv. Yog li ntawd, peb yuav tsum tau muab qhov tseem ceeb heev rau thiab ua kom muaj txiaj ntsig zoo li niaj zaus calibration.
