Led Display Basics

LED zaub yog lub vaj huam sib luag tiaj tiaj, tsim los ntawm ntau lub me me LED modules, siv los tso saib cov ntawv, duab, yees duab, teeb liab video thiab lwm yam khoom siv ntau yam ntaub ntawv.

Nws yog tsuas yog siv rau kev tshaj tawm sab hauv tsev, tso saib, ua si, kev ua haujlwm tom qab thiab lwm yam. Feem ntau ntsia rau hauv cov chaw lag luam, lub tsev facades, tsheb khiav txoj kev, pej xeem squares, sab hauv tsev theem, chav sib tham, studios, banquet halls, commands thiab lwm qhov chaw, ua lub luag hauj lwm nyob rau hauv cov zaub.

Ⅰ. lub hauv paus ntsiab lus ua haujlwm ntawm LED zaub

Lub hauv paus ntsiab lus ua haujlwm ntawm LED zaub yog dynamic scanning. Dynamic scanning yog muab faib ua kab scanning thiab kem scanning ob txoj kev, feem ntau siv txoj kev yog kab scanning. Kab scanning yog muab faib ua 8 kab scanning thiab 16 kab scanning.

Nyob rau hauv txoj kab scanning hom ntawm kev ua haujlwm, txhua daim ntawm LED dot matrix piece muaj ib txheej ntawm kem tsav Circuit Court, kem tsav Circuit Court yuav tsum muaj ib tug latch los yog hloov pauv, siv los xauv cov ntsiab lus yuav tsum tau muab tso rau hauv lo lus hom ntaub ntawv. Nyob rau hauv txoj kab scanning hom ntawm kev ua haujlwm, tib kab ntawm LED dot-matrix daim ntawm tib lub npe kab tswj pins txuas nrog nyob rau hauv parallel ntawm ib kab, tag nrho ntawm 8 kab, thiab thaum kawg txuas nrog ib kab tsav Circuit Court; kab tsav Circuit Court yuav tsum muaj ib lub latch lossis hloov npe, siv los kaw cov kab scanning teeb liab.

LED zaub kem tsav Circuit Court thiab kab tsav Circuit Court feem ntau yog siv microcontroller tswj, feem ntau siv microcontroller yog MCS51 series. LED zaub cov ntsiab lus feem ntau khaws cia rau hauv daim ntawv ntawm lo lus hom hauv microcontroller cov ntaub ntawv sab nraud nco, lo lus hom yog 8-ntsis binary tooj.

Ⅱ. cov kev paub yooj yim ntawm Led zaub

1, LED yog dab tsi?

LED yog lub teeb-emitting diode abbreviation (LIGHT EMITTING DIODE), los ntawm lub teeb-emitting diode kev npaj tsim los ntawm cov khoom siv. Kev lag luam zaub tau hais tias LED hais txog LED tuaj yeem tso tawm qhov pom qhov ntev.

2, LED zaub yog dab tsi?

Los ntawm qee txoj kev tswj hwm, LED cov cuab yeej array muaj li ntawm cov zaub screen.

3, LED zaub module yog dab tsi?

Muaj cov kab hluav taws xob thiab cov qauv kev teeb tsa los txiav txim siab, nrog rau cov haujlwm ua haujlwm, tuaj yeem pom tau los ntawm kev sib dhos yooj yim ua haujlwm ntawm chav tsev yooj yim.

4, LED zaub module yog dab tsi?

Tsim los ntawm ib tug xov tooj ntawm cov zaub pixels, structurally ywj siab, tuaj yeem tsim qhov tsawg tshaj plaws ntawm LED zaub. Hom 8 * 8, 8 * 7, thiab lwm yam.

5. Dab tsi yog pixel pitch (dot pitch)?

Qhov nruab nrab ntawm qhov nruab nrab ntawm ob lub pixels uas nyob ib sab, qhov me dua lub suab, qhov luv ntawm qhov pom kev deb. Kev lag luam feem ntau yog luv P los qhia qhov sib nrug ntawm qhov taw tes.

6, pixel ceev yog dab tsi?

Kuj hu ua dot density, feem ntau yog hais txog cov pixels ib square meter ntawm cov zaub.

7, luminous brightness yog dab tsi?

LED zaub chav tsev cheeb tsam muab los ntawm lub teeb siv, chav tsev yog CD / square meter, tsuas yog muab tso rau ib square meter zaub tawm los ntawm lub teeb siv;

8, qhov ci ntawm LED zaub yog dab tsi?

LED zaub ci ci yog hais txog kev ua haujlwm ib txwm muaj ntawm cov zaub, cov khoom siv hauv cheeb tsam ntawm luminous siv, chav tsev yog cd / m2 (piv txwv li, pes tsawg cd ntawm luminous siv ib square meter ntawm thaj tsam ntawm cov zaub.

11, Grey theem yog dab tsi?

Cov qib grey ntawm LED zaub yog qhov taw qhia uas qhia txog qib duab ntawm cov zaub. Cov qib grey ntawm lub vijtsam video feem ntau muab faib ua 64 qib, 128 qib, 256 qib, 512 qib, 1024 qib, 2048 qib, 4096 qib thiab lwm yam. Qhov siab dua ntawm qib grey, qhov pom tseeb ntawm qib duab, qhov dav dav greyscale theem ntawm 256 lossis ntau dua, cov duab sib txawv tsis loj heev.

12, Dual-xim, pseudo-xim, xim puv npo yog dab tsi?

Los ntawm cov xim sib txawv ntawm lub teeb-emitting diodes tuaj yeem tsim los ntawm cov lus sib txawv, ob xim yog tsim los ntawm liab, ntsuab lossis daj-ntsuab ob xim, pseudo-xim yog tsim los ntawm liab, daj-ntsuab, xiav peb xim sib txawv, tag nrho. -xim yog tsim los ntawm liab, ntshiab ntsuab, ntshiab xiav peb xim sib txawv.

13, moire yog dab tsi?

Nws yog nyob rau hauv lub shooting ua hauj lwm ntawm tag nrho-xim LED zaub, LED zaub screen yuav muaj ib co irregular dej ripples, cov dej ripples nyob rau hauv physics yog hu ua "moiré".

14, SMT yog dab tsi, SMD yog dab tsi?

SMT yog nto mounted thev naus laus zis (SURFACE MOUNTED thev naus laus zis luv luv), yog tam sim no cov tshuab nrov tshaj plaws thiab cov txheej txheem hauv kev lag luam hluav taws xob sib dhos; SMD yog nto mounted ntaus ntawv (nto mounted ntaus ntawv luv luv).

LED zaub yog ib yam tshiab ntawm cov ntaub ntawv qhia tawm xov xwm, nws yog kev tswj ntawm lub teeb-emitting diode zaub hom ntawm vaj huam sib luag vaj huam sib luag zaub screen, tuaj yeem siv los tso saib cov ntawv, duab thiab lwm yam ntaub ntawv zoo li qub thiab cov animation, video thiab lwm yam. dynamic ntaub ntawv, LED hluav taws xob zaub teeb microelectronics technology, computer technology, cov ntaub ntawv ua nyob rau hauv ib tug, nrog ci xim, dav dynamic ntau yam, siab brightness, ntev lub neej, ruaj khov thiab txhim khu kev qha, thiab lwm yam zoo, lug siv nyob rau hauv kev lag luam tawm, kev coj noj coj ua kev lag luam, Cov chaw ua kis las, kev tshaj tawm xov xwm, kev tshaj tawm xov xwm, kev lag luam kev nyab xeeb, thiab lwm yam, tuaj yeem ua tau raws li qhov xav tau ntawm ib puag ncig sib txawv. Raws li cov xim puag xim tuaj yeem muab faib ua ib qho xim xim thiab cov xim puv xim.