Raws li kev tshaj tawm ntawm kev tshaj tawm, LED zaub screen tshwm sim ntau zaus hauv peb lub neej, thiab qhov kev thov rau kev saib xyuas cov ntaub ntawv txheeb xyuas txheeb ze rau LED zaub screen kuj nce ntxiv. Cia's tham txog yuav ua li cas txheeb xyuas qhov ci ntawm LED zaub screen.
Ua ntej, cia' s to taub dab tsi yog qhov ci ntawm LED zaub:
Lub ci ci ntawm LED lub teeb-emitting raj yog hais txog kev siv lub teeb tawm los ntawm lub teeb-emitting lub cev, uas yog hu ua lub teeb siv thiab qhia los ntawm MCD. Lub luminous ci ntsa iab ntawm LED zaub screen yog ib qho kev qhia dav dav, uas yog hais txog qhov kev qhia dav dav ntawm tag nrho cov luminous npaum li cas (luminous flux) ntawm tag nrho cov LED modules nyob rau hauv chav tsev ntim thiab lub illuminance ntawm ib tug tej yam deb.
Brightness ntawm LED zaub screen: chav tsev ntawm luminous siv brightness ib chav tsev nyob rau hauv ib tug muab kev taw qhia yog CD / m2.
Lub brightness yog ncaj qha proportional rau tus naj npawb ntawm LEDs ib chav tsev cheeb tsam thiab lub brightness ntawm LED nws tus kheej. Lub ci ci ntawm LED yog ncaj qha proportional rau nws tsav tam sim no, tab sis cov kev pab cuam lub neej yog inversely proportional rau square ntawm nws tam sim no, yog li ntawd tus tsav tam sim no yuav tsis tau ntau tshaj li nyob rau hauv thiaj li yuav nrhiav brightness. Nyob rau hauv tib lub ntsiab lus ceev, qhov ci ntawm LED zaub screen nyob ntawm cov khoom, ntim daim ntawv thiab qhov loj ntawm LED nti. Lub nti loj dua, qhov ci ntsa iab ntau dua; Hloov pauv, qhov qis dua qhov ci.
Yog li dab tsi yog qhov yuav tsum tau ci ntsa iab rau lub vijtsam lub cev?
General brightness yuav tsum muaj raws li nram no:
(1) Sab hauv LED zaub:> 800cd / m2
(2) Semi sab hauv LED zaub:> 2000cd / m2
(3) Sab nraum zoov LED zaub (sab qab teb tig mus rau sab qaum teb):> 4000cd / m2
(4) Sab nraum zoov LED zaub (ntsib sab qab teb):> 8000CD / m2
Qhov zoo ntawm LED lub teeb-emitting raj muag hauv khw tsis sib xws, thiab feem ntau ntawm qhov ci ci tsis tuaj yeem lav. Qhov tshwm sim ntawm cov khoom shoddy deceives cov neeg siv khoom. Cov neeg feem coob tsis muaj peev xwm txheeb xyuas qhov ci ntawm LED lub teeb-emitting raj. Yog li ntawd, cov lag luam hais tias qhov kaj yog qhov ci. Thiab nws nyuaj rau kev paub qhov txawv ntawm qhov muag liab qab, yog li yuav ua li cas txheeb xyuas nws?
1, Yuav ua li cas txheeb xyuas qhov ci ntawm LED zaub
1. Ua kom muaj 3V DC fais fab mov yooj yim rau kev txuas lub teeb-emitting diodes, uas yog ua los ntawm cov roj teeb. Ob lub pob roj teeb tuaj yeem siv tau, uas tau muab tso rau hauv ib lub raj yas me me thiab coj tawm ob qhov kev sojntsuam raws li qhov zoo thiab qhov tsis zoo. Tus Tsov tus tw yog ncaj qha mus rau hauv ib qho kev hloov nrog shrapnel. Thaum siv, qhov zoo thiab qhov tsis zoo sojntsuam sib raug rau cov pins zoo thiab tsis zoo ntawm LED, nias thiab tuav tus tes hloov ntawm tus Tsov tus tw kawg, thiab LED yog powered on.
2. Qhov thib ob, lub teeb pom kev yooj yim ntsuas yog tsim los ntawm photoresist thiab digital multimeter. Ob lub xov hlau nyias raug coj tawm ntawm lub photoresist thiab txuas ncaj qha mus rau ob qhov kev sojntsuam ntawm digital multimeter. Lub iav ntawm multimeter yog muab tso rau ntawm 20K (nyob ntawm seb lub photoresist, sim ua kom qhov kev nyeem ntawv yog). Nco ntsoov tias qhov ntsuas tus nqi yog qhov ua tau zoo ntawm cov photoresist. Yog li ntawd, lub brighter lub teeb yog, qhov me me tus nqi yog.
3. Siv lub LED thiab teeb nws nrog ntau tshaj 3V DC. Lub teeb emitting lub taub hau yog tig mus thiab ze rau ntawm qhov chaw photosensitive ntawm kev txuas nrog photosensitive resistor. Lub sijhawm no, multimeter yuav nyeem kom paub qhov txawv ntawm qhov ci ci ntawm LED.
2 、 Brightness kev ntxub ntxaug yog hais txog qhov ci ntsa iab ntawm cov duab tsaus thiab dawb tshaj plaws uas tuaj yeem ua rau tib neeg lub qhov muag pom.
Cov qib grey ntawm LED zaub screen yog siab heev, uas tuaj yeem ncav cuag 256 lossis txawm tias 1024. Txawm li cas los xij, vim qhov tsis txaus ntseeg ntawm tib neeg lub qhov muag rau qhov ci ci, cov qib grey no tsis tuaj yeem lees paub tag nrho. Hauv lwm lo lus, ntau tus neeg uas nyob ib sab grey qib yuav zoo ib yam. Thiab qhov muag kev ntxub ntxaug txawv ntawm ib tus neeg mus rau lwm tus. Rau lub vijtsam LED zaub, qhov ntau ntawm tib neeg qhov muag pom theem, qhov zoo dua, vim tias cov duab tso tawm yog rau tib neeg pom tom qab tag nrho. Qhov ntau dua qhov ci ntsa iab uas tuaj yeem paub qhov txawv ntawm tib neeg lub qhov muag txhais tau hais tias qhov loj dua qhov chaw xim ntawm LED zaub screen, lub peev xwm ntau dua los tso saib cov xim nplua nuj. Cov cim qhia qhov ci ci tuaj yeem kuaj nrog software tshwj xeeb. Feem ntau, lub vijtsam zaub tuaj yeem ncav cuag ntau dua qib 20, uas yog qib zoo dua.
3 、 Yuav tsum muaj qhov ci ntsa iab thiab pom lub kaum ntse ntse:
Lub brightness ntawm sab hauv LED zaub screen yuav tsum yog ntau tshaj 800cd / m2, thiab lub brightness ntawm lub sab nraum zoov puv xim screen yuav tsum ntau tshaj 1500cd / m2, thiaj li yuav ua kom ntseeg tau cov kev ua hauj lwm ntawm lub LED zaub screen, txwv tsis pub cov tso tawm kom pom. daim duab yuav tsis pom meej vim qhov ci ntsa iab tsawg dhau. Lub ci ci yog tsuas yog txiav txim siab los ntawm qhov zoo ntawm LED tuag. Qhov loj ntawm qhov pom lub kaum ntse ntse txiav txim siab cov neeg tuaj saib ntawm lub vijtsam LED, yog li qhov loj dua qhov zoo dua. Qhov pom lub kaum ntse ntse yog txiav txim siab los ntawm cov pob tuag.
Nws yog ib qho tsim nyog los txiav txim siab qhov ci ntawm LED zaub screen. Tam sim no, qhov yuav tsum tau ua kom pom kev ci ntsa iab ntawm lub nroog ci ntsa iab LED zaub screen, lossis cov kev cai tshiab tau tshaj tawm. Yog tias qhov ci ntawm LED zaub screen siab dhau lawm, nws yuav ua teeb meem rau cov neeg nyob ze. Txhawm rau kom tsis txhob muaj kev cuam tshuam tsis zoo, cov lag luam yuav tsum muaj kev paub txog kev tshaj lij thaum kho thiab tswj cov duab LED.
Cov saum toj no yog hais txog yuav ua li cas txheeb xyuas qhov tseeb qhov ci ci qhov ci ci ntawm LED zaub screen. Kuv vam tias nws yuav pab tau koj. Tsis tas li ntawd, qhov ci ntsa iab ntawm LED zaub screen tsis yog qhov loj dua qhov zoo dua, tab sis qhov ci ntsa iab tsim nyog yuav ua tiav cov txiaj ntsig tsis xav tau raws li kev thov siv.
