Muab tso rau hauv cov txheej txheem kev siv tshuab ntawm LED matrix zaub. Kawm txog multiplexing, kab/kem tsav tsheb, thiab yuav ua li cas diodes tsim cov duab.
Cov paib digital yog muaj nyob rau hauv cov nroog niaj hnub no, tab sis thev naus laus zis tom qab yuav ua li cas lawv pom cov duab nkig thiab cov voj voog video tsis tshua nkag siab. Cov tshuab no tso siab rau kev sib koom tes-raws li kev tswj hwm thiab siab- hloov hluav taws xob ceev. Kab lus no piav qhia txog kev tsim vaj tsev sab hauv uas muaj zog rau niaj hnubcoj matrix zaub.
Basic Anatomy ntawm Matrix Diode Grid
Hauv nws qhov tseem ceeb, acoj matrix zaubyog ib qho kev teeb tsa ntawm lub teeb -emitting diodes (semiconductor lub teeb qhov chaw uas emit lub teeb thaum tam sim no ntws los ntawm lawv) nyob rau ntawm qhov sib tshuam ntawm kab thiab kab. Qhov kev teeb tsa no tso cai rau lub kaw lus los hais txog kev sib koom ua ke ntawm tus kheej hla ntawm qhov screen.
Nyob rau hauv ib qho yooj yim monochrome layout, txhua qhov kev sib tshuam tuav ib lub diode. Hauv tag nrho -ximmatrix coj zaub, txhua qhov kev sib tshuam muaj peb qhov sib txawv diodes: ib qho liab, ib qho ntsuab, thiab ib qho xiav. Los ntawm kev hloov cov hluav taws xob tam sim no xa mus rau txhua lub diode, lub kaw lus sib xyaw cov xim thawj coj los tso saib ntau yam hues.
Lub tswv yim ntawm Multiplexing thiab Scanning
Kev sib txuas cov kab tswj kev sib cais rau txhua qhov LED ntawm lub siab - kev daws teeb meem yuav xav tau cov xaim hluav taws xob tsis tuaj yeem tswj tau. Yuav kom daws tau qhov teeb meem no, engineers siv ib txoj kev hu ua multiplexing.
Nyob rau hauv ib tug multiplexedmatrix coj screen, tswj electronics qhib ib kab ntawm ib lub sij hawm nyob rau hauv ceev succession. Thaum ib kab raug qhib, lub kaw lus siv qhov tseeb qhov hluav taws xob rau txhua kab kom pom qhov tsim nyog pixels hauv kab ntawd. Lub kaw lus ces txav mus rau kab tom ntej, rov ua cov txheej txheem hauv qab ntawm qhov screen.
High Scanning tus nqi:Qhov kev tshuaj ntsuam no tshwm sim ntau pua lossis ntau txhiab zaus hauv ib ob. Vim yog qhov tsis pom kev tsis pom kev, tib neeg lub qhov muag pom tau ib daim duab tas mus li, ruaj khov tsis yog ib txoj kab flickering.
Lub luag haujlwm Cycles:Ib feem ntawm lub sijhawm LED ua haujlwm thaum lub sijhawm luam theej duab yog hu ua lub voj voog ua haujlwm. Ib qho 1/4 scan txhais tau hais tias ib kab yog nquag ua haujlwm hauv ib lub hlis twg ntawm lub sijhawm, uas cuam tshuam rau ob qho tib si screen brightness thiab lub zog noj.
Kev Ua Teeb Meem: Los ntawm Media Player rau Diode
Kev taug kev ntawm cov duab los ntawm cov ntaub ntawv computer mus rau lub cevLED npo matrixmuaj ob peb yam txawv cov kauj ruam ua:
| Txheej txheem txheej txheem | Cheebtsam koom | Kev Ua Haujlwm Tseem Ceeb |
| 1. Qhov chaw nkag | Media Player / PC | Outputs txheem video signals ntawm HDMI, DisplayPort, los yog network kwj. |
| 2. Kev hloov dua siab tshiab | Xa daim npav | Captures tus yees duab input, ntsuas qhov kev daws teeb meem, thiab converts nws mus rau hauv ib tug kwj ntawm cov ntaub ntawv. |
| 3. Kev faib tawm | Txais Daim Npav | Nruab rau hauv lub npov txee; faib cov ntaub ntawv kwj mus rau ib qho module kab. |
| 4. Diode Execution | Tsis tu ncua Current Driver ICs | Muab cov hluav taws xob tam sim no rau ib tus neeg LEDs los ua cov duab. |
Raws li pom nyob rau hauv lub rooj, reproducing ib tug video ntaub ntawv yog yuav tsum tau synchronization meej ntawm lub hauv paus tswj thiab tus neeg tsav tsheb chips ntawm txhua module.
Key Hardware Performance Features
Kev xaiv ntawm cov tsav tsheb hauv chips thiab cov khoom tswj tau ncaj qha cuam tshuam rau qhov kawg ntawm cov zaub zoo ntawm acoj matrix screen:
Pulse Width Modulation (PWM):Cov chips tsav tsheb siv PWM los tswj kev ci ntsa iab los ntawm kev tig cov LEDs rau thiab tawm ntawm cov zaus siab. Hloov lub sijhawm ntawm cov no ntawm - xeev tso cai rau lub kaw lus kom ua tiav cov kev hloov pauv grey.
Constant Current Drivers:Cov chips tshwj xeeb no ua kom ntseeg tau tias txhua lub diode tau txais cov khoom siv tam sim no, tiv thaiv qhov ci ntsa iab ntawm qhov screen.
Cov lus nug nquag nug (FAQs)
Multiplexing hauv matrix coj zaub yog dab tsi?
Multiplexing nyob rau hauv ibmatrix coj zaubyog ib txoj kev tswj qhov twg kab thiab kab sib koom ntawm pixels. Tsis txhob xaim txhua qhov LED ib tus zuj zus, lub kaw lus rov ua kom cov kab sib txuas ntawm kev kub ceev, txo cov kev sib txuas thiab cov nqi sib txuas.
Vim li cas qee qhov matrix coj zaub qauv flicker ntawm lub koob yees duab?
Flickering ntawm lub koob yees duab tshwm sim thaum qhov screen qhov refresh tus nqi tsis synchronized nrog lub shutter ceev ntawm lub koob yees duab. Siv amatrix coj zaubnrog siab - zaus tsav tsheb chips tuaj yeem tshem tawm qhov teeb meem pom.
Tus tsav tsheb IC lub luag haujlwm ua haujlwm li cas hauv lub vijtsam coj matrix?
Tus tsav tsheb IC (Integrated Circuit) ua raws li qhov siab - hloov ceev uas xa cov hluav taws xob tam sim no mus rau lub diodes raws li cov lus txib los ntawm daim npav txais, cuam tshuam ncaj qha rau qhov tob xim thiab tus nqi tshiab ntawm ibLED npo matrix.
Lub monochrome coj matrix screen puas tuaj yeem hloov kho kom puv xim?
Feem ntau, tsis muaj. Ib tug monochromecoj matrix screensiv ib zaug - xim diodes thiab ib qho sib piv ib zaug -channel tswj architecture; Kev hloov kho kom zoo rau tag nrho cov xim yuav tsum tau hloov lub cev modules nrog RGB diode daim phiaj thiab ntau -channel controllers.
1/8 scan npaum li cas rau cov zaub coj matrix?
A 1/8 scan tus nqi txhais tau hais tias lub kaw lus tswj xyuas cov zaub hauv cov kab ntawm yim kab, teeb pom kev ib kab tawm ntawm txhua yim ntawm ib qho microsecond. Qhov kev teeb tsa no muaj nyob hauv kev sib npaug sab nraum zoovzaub coj matrixtshuab.
