Qhov sib txawv tseem ceeb ntawm COB thiab SMD ntim technologies rau LED qhia nyob rau hauv lawv daim ntawv ntim, txheej txheem ntws, cov yam ntxwv ntawm cov khoom, thiab daim ntawv thov scenarios. Qhov txawv tshwj xeeb yog raws li nram no:
I. Daim ntawv ntim khoom thiab cov qauv
SMD Ntim: Siv cov qauv "LED nti", encapsulating RGB peb -xim LED chips nyob rau hauv ib qho kev ywj siab bracket los tsim LED chips (SMD nto mount li), uas yog ces soldered mus rau lub PCB board. LED nti muaj cov khoom siv hluav taws xob, cov khoom siv hluav taws xob (xws li tsib- txheej tooj liab, npib tsib xee, thiab nyiaj plated bracket), LED nti, thiab txheej txheej epoxy resin tiv thaiv.
COB Ntim: Siv lub "chip-rau-cov kabmob" qauv, ncaj qha kho lub teeb- emitting nti rau PCB board siv conductive lossis tsis yog -cov nplaum nplaum. Nws tshem tawm qhov xav tau rau ib qho kev ywj pheej LED nti bracket thiab ua tiav kev sib txuas hluav taws xob los ntawm kev sib txuas ntawm cov hlau. Qhov no tso cai rau me me qhov sib nrug thiab ntim khoom ntim tsis txwv, ua rau nws haum rau micro-pitch LED zaub.
II. Kev tsim khoom
SMD Ntim Txheej Txheem:
LED Chip Ntim: LED chips yog ntim rau hauv ib lub bracket los tsim LED chips.
Mounting: LED chips yog mounted rau ntawm lub rooj tsavxwm PCB siv ib tug xaiv - thiab - qhov chaw ntaus ntawv.
Sintering thiab Curing: LED chips yog tsau siv high -kub reflow soldering.
Hlau Bonding: LED leads txuas nrog siv lub siab soldering.
Epoxy Resin Protection: Cov qauv sab hauv ntawm LED nti yog encapsulated. Cov khoom siv tseem ceeb: Cov khoom siv hluav taws xob (tsib- txheej electroplating ntawm tooj liab, npib tsib xee, thiab nyiaj), LED nti, hluav taws xob hluav taws xob, epoxy resin.
COB Ntim Txheej Txheem:
Direct Chip Mounting: LED chips yog ncaj qha mounted rau PCB board.
Hlau Bonding: Chips yog txuas nrog lub circuitry siv hlau hlau.
Kev ntim khoom ntim: LED nti bracket raug tshem tawm, txo cov txheej txheem rov ua dua. Qhov zoo: Cov txheej txheem yooj yim dua, tshem tawm LED nti tsim thiab ob lub voj voog rov ua dua, txo cov txheej txheem nyuaj.
III. Cov yam ntxwv khoom sib piv
Kev ruaj ntseg:
COB: Yuav luag tsis muaj qhov yuam kev, tsis muaj qhov chaw tuag, vim tias cov nti raug kho ncaj qha rau PCB pawg thawj coj saib, txo qhov kev pheej hmoo ntawm kev sib cuag tsis ua haujlwm.
SMD: LED chips txuas nrog PCB board ntawm solder; ntev - siv sij hawm ntev yuav ua rau cov LEDs tuag vim kev laus ntawm kev sib koom tes.
Visual Experience:
COB: Siv lub teeb pom kev zoo tsim, muab cov mos mos, tsis yog -glaring brightness haum rau kev saib ntev.
SMD: Point teeb qhov chaw qauv; tuaj yeem tsim glare ntawm qhov ci ntsa iab.
Kev tiv thaiv kev ua haujlwm:
COB: IP66 tiv thaiv ntsuas; txhawb nqa dej so; muaj zog cuam tshuam tsis kam.
SMD: Tawm LEDs; raug rau lub cev puas tsuaj; kev tiv thaiv tsis muaj zog.
Seamless Tsim & Customization:
COB: Seamless tsim; tuaj yeem hloov kho rau txhua qhov loj precision zaub.
SMD: Txwv los ntawm LED loj; seam kev kho mob yog qhov nyuaj dua.
Lifespan:
COB: Theoretical lifespan tshaj 10 xyoo (tshaj 8 xyoo nrog txuas ntxiv 24-teev siv).
SMD: Lifespan feem ntau yog 5-8 xyoo, cuam tshuam los ntawm LED kev laus.
Pitch & Resolution:
COB: Txhawb micro- suab (piv txwv li, hauv qab P0.9), ua tiav ultra- daws teeb meem siab.
SMD: Qhov tsawg kawg nkaus yog txwv los ntawm LED loj (feem ntau saum P1.2). IV. Daim ntawv thov Scenario
COB Ntim: Haum rau nruab nrab-rau- siab- kawg qhov xwm txheej nrog cov kev xav tau siab rau kev ruaj ntseg, kev tiv thaiv, thiab kev daws teeb meem, xws li cov chaw hais kom ua, chaw kho mob, thiab siab - cov khoom lag luam kawg.
SMD Ntim: Siv dav hauv sab hauv tsev puv -xim LED zaub, xws li chav sib tham, chav ua yeeb yam, thiab cov ntxaij vab tshaus tshaj tawm. Nws muaj tus nqi qis, tab sis nws lub suab thiab kev tiv thaiv yog txwv.
V. Txoj Kev Loj Hlob
COB Technology: Nrog rau qhov kev thov ntau ntxiv rau micro-pitch displays, COB, vim nws qhov kev ruaj ntseg siab thiab qhov zoo me me, tau dhau los ua qhov tseem ceeb yav tom ntej, maj mam hloov cov khoom siv thev naus laus zis xws li DLP thiab LCD.
SMD Technology: Tseem nyob qhov qis - rau - nruab nrab - kev lag luam kawg, tab sis ntsib kev sib tw los ntawm COB hais txog kev daws teeb meem thiab kev tiv thaiv. Nws yuav tsum tswj hwm nws txoj kev lag luam los ntawm kev hloov kho thev naus laus zis (xws li Mini LED).
Cov ntsiab lus: COB ntim ua kom yooj yim rau cov txheej txheem thiab txhim kho kev ua tau zoo nrog "direct nti mounting," ua rau nws haum rau siab -kawg micro- suab lus; SMD ntim dominates qis-rau- nruab nrab- kev lag luam kawg nrog nws cov txheej txheem paub tab thiab tus nqi qis. Nyob rau yav tom ntej, COB thev naus laus zis xav kom nthuav dav nws daim ntawv thov los ntawm kev txo nqi.
