Tam sim no, ntau thiab ntau dua LCD splicing phab ntsa tau teeb tsa hauv cov rooj sib tham, thiab qhov teeb meem ntawm cov xim cam yeej ib txwm muaj kev txhawj xeeb rau leej twg. Feem ntau, nws yog feem ntau tshwm sim raws li cov xim thiab saturation ntawm lub interface yog inconsistent, thiab ib tug tej yam interface yog kaj los yog tsaus, yog li yuav ua li cas nrog cov xim cam khwb cia rau ntawm lub LCD splicing phab ntsa nyob rau hauv lub rooj sib tham nrog?
Qhov tsis sib xws ntawm chroma thiab saturation ntawm LCD splicing npo yuav ua rau chromaticity thiab saturation ntawm lub interface tsis zoo. Feem ntau, nws yog feem ntau manifested raws li ib feem ntawm lub interface yog heev ci los yog tsaus heev, los yog ib feem ntawm lub xim yog tsis ncaj ncees lawm, raws li nws yog feem ntau hais tias cov xim cam khwb cia thiab chromaticity uniformity (Masek, screen flicker).
Los ntawm tus kheej qhov kev pom, lub vijtsam LCD nws tus kheej tsis yooj yim rau teeb. Nws yuav tsum tau taws nrog kev pab los ntawm ib tug backlight module. Yog li ntawd, tus yuam sij rau cov tsos ntawm chromaticity sib txawv thiab xim cam khwb cia yog tus yam ntxwv ntawm lub cev ntawm lub backlight. Discreteness, uas yog, vim hais tias ntawm cov txheej txheem tsim, lub ntsiab qhov muag tsis pom ntawm txhua qhov backlight qhov yuav tsis zoo li qub. Txawm tias tib tus lej, nws cov chromaticity yuav muaj qhov yuam kev. Txhawm rau muab nws ntau dua, tib lub vijtsam LCD yuav muaj 30 feem pua ~ 50 feem pua kev ua yuam kev hauv chromaticity nyob rau hauv ntau cheeb tsam, thiab lub ntsiab wavelength nrug feem ntau yog 5nm.
Vim hais tias lub LED yog ib tug self-luminous khoom, thiab lub luminous siv yog proportional rau tus nqi ntawm tam sim no qhia rau nws nyob rau hauv ib tug tej yam ntau yam, yog li nyob rau hauv tag nrho cov txheej txheem ntawm tsim, tsim, txhim kho thiab kho lub hwj chim Circuit Court, nws yuav hloov tau. kom ntau li ntau tau raws li qhov ua tau zoo ntawm kev ua haujlwm voltage. Me me chromaticity sib txawv. Siv tus nqi nruab nrab raws li qhov ntsuas tus nqi ntsuas, nws yuav tsum tsawg dua 15 feem pua ~ 20 feem pua. Tsis tas li ntawd, lub LCD splicing phab ntsa muaj qhov teeb meem ntawm kev pom thiab pom lub kaum ntse ntse (kab rov tav / ntsug: ob qho tib si yog 178 degree).
Qhov teeb meem ntawm cov xim cam tau pom, tab sis yuav daws qhov teeb meem no li cas?
Qhov teeb meem ntawm cov xim cam khwb cia thiab chroma tseem yog ib qho nyuaj rau kev lag luam kev lag luam kom zam, tab sis cov xim cam khwb cia thiab chroma teeb meem tuaj yeem txhim kho los ntawm cov hauv qab no:
(1) LEDs tsim nrog tib batch tooj. Qhov kev ua haujlwm tiag tiag yog qhov yooj yim, tus nqi tsis siab, thiab qhov sib txawv tuaj yeem ua kom muaj txiaj ntsig zoo ntawm qib loj heev kom ntseeg tau tias tib lub saturation. Feem ntau ntawm cov kev xav tau tshwj xeeb ntawm ntau lub tuam txhab tsim khoom LED tuaj yeem xav txog.
(2) Siv lub patchwork tsav tsheb npaj los kho qhov muag chromaticity ntawm thawj xim ntawm R, G, thiab B. Tswj cov tib neeg uas muaj qhov sib txawv loj.
(3) Ua cov spectrometer xim xaiv (feem ntau xaiv cov kws tshaj lij spectrometer xim tshuab). Los ntawm tus lej loj, xaiv cov xim thiab LED xim kub los ze zog. Kev ua tau zoo qhia tau hais tias qhov txiaj ntsig tiag tiag ntawm kev xaiv yog qhov zoo heev. Nws tsis tsuas yog ua raws li kev tsim nyog ntawm cov xim cam, tab sis kuj ua tiav qhov sib xws ntawm chromaticity raws li kev tshuaj xyuas ntawm lub teeb siv nyob rau hauv tib lub zog ua haujlwm (lossis tam sim no).
