Cov neeg nyob rau hauv LED zaub kev lag luam sib sau ua ke, thiab nws yog ib qho yooj yim los tham txog LED zaub cov khoom: dab tsi yog lub dot pitch, yuav ua li cas txog refreshing, thiab yuav ua li cas txog kev siv tas li tsav tam sim no? Yog tias koj tsis nkag siab ib yam dab tsi, qhov kev sib tham no puas muaj kev ntxhov siab ntau? Niaj hnub no, tus editor yuav qhia koj cov lus piav qhia tshaj plaws ntawm cov ntsiab lus ntawm LED zaub hauv keeb kwm, yog li koj yuav tam sim hloov pauv ntawm LED zaub Xiaobai mus rau huab tais ntawm lub vijtsam hauv 2018!
(1) LED yog dab tsi?
LED yog cov lus Askiv luv ntawm lub teeb emitting diode (LIGHT EMITTING DIODE). LED nyob rau hauv kev lag luam zaub yog hais txog cov LED uas muaj peev xwm emit pom wavelengths.
(2) pixel yog dab tsi?
Qhov tsawg tshaj plaws lub teeb-emitting unit ntawm LED zaub muaj lub ntsiab lus zoo ib yam li pixel nyob rau hauv lub computer saib zoo tib yam.
(3) Dab tsi yog pixel pitch (dot pitch)?
Qhov chaw nruab nrab ntawm ob lub pixels uas nyob ib sab. Qhov kev ncua deb me me, qhov luv dua qhov pom kev deb. Cov neeg nyob hauv kev lag luam feem ntau sau luv P los qhia qhov dot pitch.
(4) pixel ceev yog dab tsi?
Kuj hu ua dot matrix ceev, nws feem ntau yog hais txog tus lej ntawm pixels ib square meter ntawm lub vijtsam zaub.
(5) LED zaub module yog dab tsi?
Nws yog tsim los ntawm ob peb cov duab pixels, uas muaj kev ywj pheej hauv cov qauv thiab tuaj yeem tsim qhov tsawg tshaj plaws ntawm LED zaub screen. Feem ntau muaj 8 * 8, 8 * 7 thiab lwm yam.
(6) DIP yog dab tsi?
DIP yog cov ntawv luv ntawm DOUBLE IN-LINE PACKAGE, dual hauv kab sib dhos.
(7) SMT yog dab tsi? SMD yog dab tsi?
SMT yog lub tshuab mounting nto (cov ntawv luv ntawm SURFACE MOUNTED thev naus laus zis), uas tam sim no yog cov thev naus laus zis nrov tshaj plaws thiab cov txheej txheem hauv kev lag luam hluav taws xob sib dhos; SMD yog cov ntawv luv ntawm cov khoom siv saum npoo av.
(8) LED zaub module yog dab tsi?
Ib chav tsev yooj yim uas muaj qee yam hauv Circuit Court thiab kev teeb tsa, muaj lub luag haujlwm tso saib, thiab tuaj yeem paub txog kev ua haujlwm ntawm lub vijtsam los ntawm kev sib dhos yooj yim.
(9) LED zaub yog dab tsi?
Los ntawm ib txoj kev tswj hwm, ib qho screen uas tsim los ntawm cov khoom siv LED.
(10) Peb nyob hauv ib leeg yog dab tsi?
Nws yog vertically juxtapose peb RGB SMT teeb nrog cov pob khoom ywj pheej ntawm qee lub sijhawm, uas tsis yog tsuas yog muaj qhov zoo ntawm 3-hauv-1, tab sis kuj daws ntau yam tsis txaus ntawm 3-hauv{ {3}}.
(11) Dab tsi yog ob xim, pseudo-xim, xim puv npo?
Cov xim sib txawv LEDs tuaj yeem tsim cov ntxaij vab tshaus sib txawv. Dual thawj xim muaj xws li liab, ntsuab los yog daj thiab ntsuab. Pseudo-xim yog tsim los ntawm peb xim sib txawv ntawm liab, daj-ntsuab thiab xiav. Cov xim puv yog tsim los ntawm liab. , Ntshiab ntsuab, ntshiab xiav peb xim sib txawv.
(12) luminous brightness yog dab tsi?
Lub teeb siv hluav taws xob tawm los ntawm ib cheeb tsam ntawm LED zaub, chav tsev yog CD / square meter, uas tsuas yog lub teeb siv hluav taws xob tawm los ntawm ib square meter ntawm cov zaub;
(13) Qhov ci ntsa iab yog dab tsi?
Cov qib ntawm phau ntawv los yog tsis siv neeg hloov kho ntawm qhov ci ntawm tag nrho lub vijtsam nruab nrab ntawm qhov qis tshaj mus rau qhov ci siab tshaj plaws.
(14) Grey nplai yog dab tsi?
Nyob rau hauv tib lub ci ci, tus naj npawb ntawm cov txheej txheem txheej txheem los ntawm qhov tsaus ntuj tshaj plaws mus rau qhov ci ntawm cov zaub
(15) Qhov siab tshaj plaws yog dab tsi?
Nyob rau hauv ib puag ncig ib puag ncig illuminance, txhua lub ntsiab xim ntawm LED zaub screen yog nyob rau ntawm qhov siab tshaj plaws brightness thiab siab tshaj plaws grey theem;
(16) Moiré yog dab tsi?
Ntawd yog, thaum tua tag nrho-xim LED zaub ntawm kev ua haujlwm, qee qhov dej tsis sib xws yuav tshwm sim ntawm qhov screen ntawm LED zaub. Cov dej ripples no hu ua "moir patterns" hauv physics.
(17) PCB yog dab tsi?
PCB yog (cov ntawv luv ntawm cov ntawv luam tawm Circuit Board) luam tawm Circuit Board
(18) Cell board specification yog dab tsi?
Hais txog qhov loj ntawm lub xov tooj ntawm tes phaj, feem ntau yog qhia los ntawm qhov kev qhia ntawm lub xov tooj ntawm tes phaj ntev multiplied los ntawm qhov dav, nyob rau hauv millimeters. 48 × 244 hli
(19) Qhov kev daws teeb meem ntawm pawg thawj coj saib xyuas yog dab tsi?
Hais txog tus naj npawb ntawm pixels nyob rau hauv ib chav tsev board, feem ntau qhia los ntawm cov xov tooj ntawm cov kab pixels ntawm chav tsev board multiplied los ntawm cov xov tooj ntawm kab. (piv txwv li: 64 × 32)
(20) BOM yog dab tsi?
BOM yog (lub ntsiab lus ntawm daim nqi ntawm cov khoom siv) daim nqi ntawm cov ntaub ntawv
(21) Qhov nyiaj dawb yog dab tsi thiab qhov kev hloov pauv dawb yog dab tsi?
Qhov peb hu ua dawb tshuav yog hais txog qhov sib npaug ntawm cov dawb, uas yog, qhov sib npaug ntawm qhov ci piv ntawm peb xim ntawm RGB; qhov kev hloov pauv ntawm qhov ci ci ntawm peb xim ntawm RGB thiab kev sib koom ua ke dawb hu ua kev hloov pauv dawb;
(22) Qhov sib txawv yog dab tsi?
Nyob rau hauv ib puag ncig illumination, qhov piv ntawm qhov siab tshaj plaws brightness ntawm LED zaub mus rau tom qab brightness.
(23) Xim kub yog dab tsi?
Thaum cov xim tawm los ntawm lub teeb ci yog tib yam li cov xim ntawm lub cev dub ntawm qhov kub thiab txias, qhov kub ntawm lub cev dub hu ua xim kub ntawm lub teeb ci.
(24) chromatic aberration yog dab tsi?
Lub vijtsam LED zaub yog tsim los ntawm liab, ntsuab thiab xiav los tsim ntau yam xim, tab sis peb cov xim no yog ua los ntawm cov khoom sib txawv, qhov pom lub kaum ntse ntse sib txawv, thiab cov spectral faib ntawm cov LED sib txawv tau hloov. Cov kev sib txawv no uas tuaj yeem pom tau yog hu ua Rau qhov sib txawv xim. Thaum saib lub LED ntawm ib lub kaum ntse ntse, nws cov xim hloov. Tib neeg lub qhov muag muaj peev xwm los txiav txim cov xim ntawm daim duab tiag tiag (xws li daim duab yeeb yaj kiab) zoo dua li kev soj ntsuam daim duab uas tsim los ntawm lub computer.
(25) Tus ncej hloov zaus yog dab tsi?
Tus naj npawb ntawm lub sijhawm cov ntaub ntawv tshuaj ntsuam tau hloov kho rau ib lub sijhawm;
(26) Dab tsi yog qhov refresh zaus?
Tus naj npawb ntawm lub sij hawm cov tshuaj ntsuam tau rov ua dua tso tawm ntawm lub vijtsam zaub hauv chav nyob;
(27) Kev xav yog dabtsi? Lub kaum sab xis saib yog dab tsi? Qhov kev pom zoo tshaj plaws yog dab tsi?
Lub kaum sab xis saib yog thaum lub ci ntsa iab ntawm qhov saib kev taw qhia poob mus rau 1/2 ntawm qhov ci ntawm cov kab ib txwm muaj ntawm LED zaub screen. Lub kaum sab xis tsim los ntawm ob txoj kev pom ntawm tib lub dav hlau thiab cov kev taw qhia ib txwm muaj. Muab faib ua kab rov tav thiab ntsug saib cov ces kaum; lub kaum sab xis saib tsuas yog cov kev taw qhia uas cov duab cov ntsiab lus ntawm cov zaub tuaj yeem pom, thiab lub kaum sab xis tsim los ntawm qhov qub ntawm cov zaub. Lub kaum sab xis saib zoo tshaj plaws yog tuaj yeem pom cov ntsiab lus ntawm cov zaub, thiab tsis tiaj tus, lub kaum sab xis tsim los ntawm qhov pom tseeb ntawm cov ntsiab lus ntawm cov duab thiab qhov qub;
(28) Qhov kev pom zoo tshaj plaws yog dab tsi?
Nws yog qhov ntsug nrug ntawm qhov pom tseeb ntawm txoj haujlwm ntawm cov duab cov ntsiab lus txheeb ze rau lub vijtsam lub cev uas tuaj yeem pom tag nrho cov ntsiab lus ntawm cov zaub yam tsis muaj xim tiaj tus:
(29) Lub ntsiab lus ntawm kev tswj tsis tau yog dab tsi? Muaj pes tsawg hom?
Pixels uas nws lub teeb-emitting lub xeev tsis ua raws li cov kev cai tswj, cov ntsiab lus tawm-ntawm-tswj yog muab faib ua peb hom: qhov muag tsis pom kev (tseem hu ua qhov chaw tuag), qhov kaj tsis tu ncua (lossis tsaus me ntsis) thiab cov ntsiab lus flash;
(30) Dab tsi yog qhov tsav zoo li qub:? Dab tsi yog tus tsav tsheb scan? Qhov txawv ntawm ob yog dab tsi?
Qhov "point-to-point" tswj los ntawm cov zis tus pin ntawm tus tsav tsheb IC mus rau lub pixel point yog hu ua kev tsav tsheb zoo li qub, thiab "point-to-kum" tswj los ntawm cov zis tus pin ntawm tus tsav tsheb IC mus rau pixel point yog hu ua scan tsav tsheb. Nws xav tau kab tswj kab hluav taws xob: Nws tuaj yeem pom meej los ntawm pawg tsav tsheb uas tsav tsheb zoo li qub tsis tas yuav muaj kab tswj kab hluav taws xob, uas yog kim, tab sis muaj cov nyhuv zoo, kev ruaj ntseg zoo, thiab tsis tshua muaj qhov ci; scanning tsav tsheb yuav tsum muaj kab tswj kab, tab sis tus nqi qis. Cov nyhuv tsis zoo, siab brightness poob, thiab lwm yam .;
(31) Qhov tsav tam sim no yog dab tsi? Dab tsi yog qhov tsis tu ncua voltage tsav?
Qhov tam sim no tsis tu ncua yog hais txog qhov tso zis tas li tam sim no tus nqi teev nyob rau hauv qhov chaw ua haujlwm tau tso cai los ntawm tus tsav tsheb IC: qhov hluav taws xob tsis tu ncua yog hais txog tus nqi hluav taws xob tas li teev nyob rau hauv qhov chaw ua haujlwm tau tso cai los ntawm tus tsav tsheb IC;
(32) Dab tsi yog qhov piv txwv ntawm LED zaub?
Graphic screen: txiav txim siab raws li cov ntsiab lus tso tawm; Video screen: Feem ntau 4:3 lossis ze rau 4:3; Qhov zoo tagnrho piv yog 16: 9.
(33) Tus naj npawb ntawm cov ntsiab lus uas cov txheej txheem tswj tau tswj tau?
Kev sib txuas lus npo daim npav A: monochrome, dual xim 1024 × 64; kev sib txuas lus npo daim npav B: monochrome: 896 × 512 dual xim: 896 × 256; DVI dual xim npo: 1280 × 768; DVI puv xim npo: 1024 × 512
(34) Kev kho uas tsis yog kab yog dab tsi?
Yog tias cov teeb liab digital tso tawm los ntawm lub khoos phis tawj tso tawm rau ntawm LED zaub yam tsis muaj kev kho, yuav muaj xim txawv txav, yog li hauv kev tswj hwm qhov system, lub khoos phis tawj qub tso tawm teeb liab raug xam los ntawm kev ua haujlwm tsis yog linear los xam cov teeb liab uas yuav tsum tau ua. tso saib. Vim hais tias ntawm nonlinear kev sib raug zoo ntawm lub hauv ntej thiab nram qab lub teeb liab, peb feem ntau hu nws nonlinear kho.
(35) Qhov ntsuas ua haujlwm voltage yog dab tsi? Qhov ua haujlwm voltage yog dab tsi? Qhov khoom siv hluav taws xob yog dab tsi?
Qhov ntsuas hluav taws xob ua haujlwm yog hais txog qhov hluav taws xob thaum qhov hluav taws xob siv rau kev ua haujlwm ib txwm muaj; Kev ua haujlwm voltage yog hais txog tus nqi hluav taws xob ntawm cov khoom siv hluav taws xob hauv qhov ntsuas hluav taws xob thiab thaum ua haujlwm ib txwm: lub zog hluav taws xob muab faib ua AC thiab tributary fais fab mov voltages. Peb qhov tseeb AC fais fab mov voltages yog ob qho tib si AC220V-240V, DC fais fab mov voltage feem ntau yog 5V DC12V, hnub ci fais fab feem ntau yog 12V
(36) Xim distortion yog dab tsi?
Nws hais txog qhov sib txawv ntawm tib neeg lub qhov muag qhov pom kev pom thiab cov khoom siv tib yam hauv lub ntiaj teb ntuj tsim thiab ntawm cov zaub.
(37) Qhov system synchronous yog dab tsi thiab dab tsi yog qhov asynchronous system?
Synchronous thiab asynchronous yog txheeb ze rau lub computer. Lub npe hu ua synchronous system hais txog LED zaub tswj qhov system uas qhia cov ntsiab lus tso tawm ntawm lub vijtsam zaub thiab lub computer saib synchronously; lub asynchronous system hais txog cov ntaub ntawv khaws cia ua ntej uas tau kho los ntawm lub khoos phis tawj Hauv kev tswj hwm cov zaub, cov zaub ib txwm muaj ntawm LED zaub yuav tsis cuam tshuam tom qab lub khoos phis tawj raug kaw. Xws li kev tswj hwm yog ib qho kev tswj hwm asynchronous
(38) Dab tsi yog qhov muag tsis pom kev tshawb nrhiav tshuab?
Los ntawm cov software sab saud thiab cov khoom siv hauv qab, cov qhov muag tsis pom (LED qhib thiab luv) ntawm cov zaub tuaj yeem kuaj pom, thiab daim ntawv tshaj tawm tuaj yeem tsim los qhia rau tus thawj coj saib LED. Xws li tshuab yog hu ua qhov muag tsis pom kev siv tshuab;
(39) Kev ntsuas hluav taws xob yog dab tsi?
Los ntawm cov software sab saud thiab cov khoom siv hauv qab, cov kev ua haujlwm ntawm txhua lub zog hluav taws xob ntawm cov zaub tuaj yeem kuaj pom, thiab daim ntawv tshaj tawm tuaj yeem tsim los qhia rau tus thawj coj saib LED. Xws li cov cuab yeej hu ua lub zog tshawb nrhiav tshuab.
(40) Lub teeb pom kev zoo yog dab tsi? Kev kho qhov ci ci yog dab tsi?
Qhov ci ntsa iab hauv qhov pom kev ci ntsa iab yog hais txog qhov ci ntsa iab ntawm ib puag ncig qhov chaw uas LED zaub nyob. Lub teeb sensor pom qhov ci ntawm ib puag ncig qhov chaw uas cov zaub nyob tam sim no. Txoj kev tshawb nrhiav no hu ua brightness detection; cov brightness hais nyob rau hauv lub brightness hloov yog hais txog cov LED zaub Cov emission brightness thiab cov ntaub ntawv kuaj tau rov qab mus rau lub LED zaub tswj system los yog tswj lub computer, thiab ces lub brightness ntawm cov zaub yog hloov raws li cov ntaub ntawv no, uas yog hu ua brightness. kev hloov kho;
(41) Dab tsi yog pixel tiag? Dab tsi yog virtual pixel? Dab tsi ntawm virtual pixels muaj? Dab tsi yog pixel sib koom?
Cov pixels tiag tiag xa mus rau 1: 1 kev sib raug zoo ntawm tus naj npawb ntawm lub cev pixels ntawm lub vijtsam LED thiab cov pixels tiag tiag. Muaj pes tsawg cov ntsiab lus tau tso tawm kom pom ntawm lub vijtsam tsuas tuaj yeem tso saib cov ntaub ntawv duab. Virtual pixel hais txog 1:N (N=2, 4) kev sib raug zoo ntawm tus lej ntawm lub cev pixels ntawm lub vijtsam zaub thiab cov pixels tiag tiag. Nws tuaj yeem tso saib duab pixels 2 lossis 4 npaug ntau dua li qhov tseeb pixels ntawm lub vijtsam zaub; virtual Pixels tuaj yeem muab faib ua software virtual thiab hardware virtual raws li txoj hauv kev virtual: raws li kev sib raug zoo, lawv tau muab faib ua 2 zaug virtual thiab 4 zaug virtual, thiab raws li kab teeb ntawm lub module, lawv muab faib ua : 1R1G1B virtual thiab 2R1G1B virtual;
(42) Kev tswj chaw taws teeb yog dab tsi? Hauv qhov xwm txheej twg?
Qhov hu ua long-distance tsis tas yuav mus ntev. Kev tswj chaw taws teeb muaj xws li kev tswj hwm qhov kawg thiab qhov kawg tswj hauv ib cheeb tsam hauv cheeb tsam, tab sis qhov kev ncua deb ntawm lawv tsis deb; thiab lub ntsiab tswj qhov kawg thiab qhov kawg tswj yog nyob rau hauv ib tug kuj ntev qhov chaw deb. Cov neeg siv khoom xav tau lossis cov neeg siv khoom tswj txoj haujlwm tshaj qhov kho qhov muag ncaj qha. Tswj qhov deb, ces siv cov chaw taws teeb tswj;
(43) Fiber optic kis tau tus mob yog dab tsi? Dab tsi yog network cable kis tau tus mob?
Optical fiber kis tau tus mob siv pob tshab iav fiber ntau los hloov cov teeb liab hluav taws xob rau hauv cov teeb liab kho qhov muag, thaum lub network cable kis tau tus mob siv hlau xaim xaim hluav taws xob ncaj qha.
(44) Raws li qhov xwm txheej twg siv cov cables hauv network? Thaum twg siv optical fiber?
Thaum qhov kev ncua deb ntawm qhov screen thiab lub computer tswj yog tsawg dua 100 meters, siv lub network cable rau kev sib kis; Thaum qhov kev ncua deb ntawm ob yog tsawg tshaj li 500 meters thiab ntau dua 100 meters, siv ib tug multi-mode fiber ntau, thiab thaum lub deb ntawm ntau tshaj 500 meters, siv ib hom fiber ntau.
(45) LAN tswj yog dab tsi? Internet tswj yog dab tsi?
Hauv cheeb tsam hauv cheeb tsam network, ib lub computer siv los tswj lwm lub khoos phis tawj lossis txuas nrog lwm cov khoom siv sab nraud. Txoj kev tswj hwm no yog hu ua cheeb tsam hauv cheeb tsam network tswj. Tus tswj lub ntsiab ua tiav lub hom phiaj ntawm kev tswj los ntawm tus IP chaw nyob ntawm tus maub los hauv INTERNET network, uas yog hu ua Internet tswj;
(46) DVI yog dab tsi? VGA yog dab tsi?
DVI yog cov ntawv luv ntawm Digital Video interface, uas yog, digital video interface. Nws yog ib qho digital video teeb liab interface feem ntau siv thoob ntiaj teb.
(47) Lub teeb liab digital yog dab tsi? Dab tsi yog digital circuit?
Cov teeb liab txhais tau hais tias tus nqi ntawm lub teeb liab amplitude yog discrete, thiab amplitude tus nqi yog txwv rau ob qhov tseem ceeb ntawm 0 thiab 1. Circuit Court uas ua thiab tswj cov teeb liab sab hnub poob no hu ua digital circuit.
(48) Lub teeb liab analog yog dab tsi thiab dab tsi yog analog circuit?
Lub teeb liab analog txhais tau hais tias tus nqi ntawm lub teeb liab amplitude yog tas li nyob rau hauv lub sij hawm; lub Circuit Court uas ua thiab tswj cov teeb liab no yog hu ua analog circuit
(49) PCI slot yog dab tsi?
PCI slot yog qhov nthuav dav raws li PCI lub tsheb npav hauv zos (PEDPHERD tivthaiv kev sib txuas). PCI slot yog lub ntsiab expansion qhov ntawm lub motherboard. Yuav luag tag nrho cov haujlwm sab nraud uas lub khoos phis tawj tam sim no tuaj yeem ua tiav tuaj yeem tau los ntawm kev ntsaws rau hauv cov ntawv nthuav dav sib txawv:
(50) Qhov AGP yog dab tsi?
Ua kom lub graphics interface. AGP yog ib qho kev qhia tshwj xeeb uas tuaj yeem siv 3D duab los nthuav tawm ntawm qhov nrawm nrawm ntawm lub khoos phis tawj tus kheej. AGP yog ib qho interface tsim los xa 3D duab sai dua thiab du. Nws siv lub cim xeeb tseem ceeb ntawm lub khoos phis tawj tus kheej zoo tib yam los kho cov duab uas pom ntawm lub monitor, thiab txhawb nqa 3D cov duab thev naus laus zis xws li kev kos duab kev ntxhib los mos, xoom buffering thiab alpha blending.
(51) GPRS yog dab tsi, thiab GSM yog dab tsi? CDMA yog dab tsi?
GPRS yog ib qho kev pabcuam tshiab uas tsim los ntawm GSM uas twb muaj lawm los ntawm General Packet Radiosrvice (General Packet Radiosrvice), uas yog siv rau kev sib txuas lus hauv xov tooj cua; GSM yog "Lub Ntiaj Teb Txheej Txheem Rau Txawb" tau tsim los ntawm European Committee for Standardization hauv 1992. Cov ntawv luv rau "Kev Sib Txuas Lus" tus qauv (Lub Ntiaj Teb Txheej Txheem rau Kev Sib Txuas Lus Sib Txuas Lus), uas siv cov thev naus laus zis kev sib txuas lus thiab cov qauv sib koom ua ke los xyuas kom muaj kev sib txuas lus zoo thiab los tsim cov kev pabcuam tshiab ntxiv rau cov neeg siv khoom siv. CODE DIVISION MULTIPLE ACCess: Ib qho tshiab thiab paub tab kev sib txuas lus wireless raws li kev sib kis spectrum technology.
(52) Qhov twg siv GPRS thev naus laus zis rau cov ntxaij vab tshaus?
Ntawm GPRS cov ntaub ntawv network raws li kev sib txuas lus hauv xov tooj, cov ntaub ntawv ntawm peb lub vijtsam LED yog sib txuas lus los ntawm GPRS transceiver module, uas tuaj yeem paub qhov chaw taws teeb taw tes-rau-taw qhia me me ntawm cov ntaub ntawv xa mus thiab ua tiav lub hom phiaj ntawm kev tswj chaw taws teeb;
(53) USB interface yog dab tsi
Cov lus luv luv ntawm USB yog UNIVERSAL SERIALBUS, txhais ua Suav yog: Universal Serial Bus. Kuj tseem hu ua universal serial interface, nws tuaj yeem txhawb kev sib pauv kub thiab tuaj yeem txuas mus txog 127 PC peripheral li: muaj ob tus qauv kev sib txuas: USB1.0 thiab USB2.0.
