M'malo mwake, ukadaulo wa COB, monga umagwiritsidwa ntchito ku ma LCD, umakhudza kulumikizidwa mwachindunji kwa gawo lophatikizika (IC) lomwe limayang'anira magwiridwe antchito pa bolodi losindikizidwa (PCB), lomwe kenako limalumikizidwa ndi gulu la LCD lokha. Izi zimasiyana kwambiri ndi njira zachikhalidwe zoyikamo, zomwe nthawi zambiri zimafunikira madalaivala akuluakulu, ovuta kwambiri. Luso la COB lagona pakutha kuwongolera msonkhano, kulimbikitsa gawo lowonetsera lowoneka bwino komanso lolimba. Silicon yopanda kanthu imafa, ubongo womwewo wa chiwonetserocho, umamangiriridwa mwaluso ku PCB, ndipo kenako umakhala ndi utomoni woteteza. Kuphatikizika kwachindunji kumeneku sikumangoteteza malo ofunikira komanso kumalimbitsa malumikizano amagetsi, zomwe zimapangitsa kuti anthu azikhala odalirika komanso kuti azigwira ntchito nthawi yayitali.
Ubwino woperekedwa ndi ma COB LCDs ndi wamitundumitundu komanso wokakamiza. Choyamba, iwokudalirika kowonjezerekandi zotsatira zachindunji za mapangidwe ophatikizidwa. Mwa kuchepetsa zigawo zikuluzikulu ndi mawaya akunja, chiwopsezo cha kulephera kwa kulumikizana chimachepetsedwa kwambiri. Kulimba kwachilengedweku kumapangitsa ma COB LCDs kukhala oyenerera pamapulogalamu omwe amafuna kuti azichita bwino m'malo ovuta, monga mapanelo a zida zamagalimoto kapena makina owongolera mafakitale. Kulumikizana kwachindunji kumachepetsa fragility yomwe nthawi zambiri imagwirizanitsidwa ndi zolumikizira zingapo, ndikupereka yankho lowonetsera lomwe limatha kupirira kugwedezeka kwakukulu komanso kupsinjika kwamafuta.
Chachiwiri,danga bwinondi chizindikiro chaukadaulo wa COB. Munthawi yomwe zida zamagetsi zikucheperachepera, millimeter iliyonse ndi yamtengo wapatali. Ma LCD a COB, okhala ndi kutsika kwawo, amalola kupanga zinthu zowoneka bwino, zopepuka popanda kusokoneza magwiridwe antchito. Kuphatikizika kumeneku kumapangitsa kuti msonkhano ukhale wosalira zambiri, zomwe zimapangitsa kuti pakhale zovuta zopanga zinthu komanso, kuwonjezera, ndalama zopangira. Kuphatikizikako kumamasula opanga ku zopinga za ma modules wamba, ndikutsegula mawonekedwe atsopano a kapangidwe kazinthu ndi kusuntha. Mwachitsanzo, Malio, yemwe ali patsogolo pamayankho owonetsera, amapereka aCOB LCD module(P/N MLCG-2164). Gawo lapaderali limapereka chitsanzo cha momwe COB imasungira malo, ndikupereka malo owonera bwino mkati mwa mawonekedwe owoneka bwino, oyenera kugwiritsa ntchito mitundu ingapo yamapulogalamu omwe amafunikira luso lazithunzi komanso mawonekedwe.
Kuphatikiza apo, ma COB LCD amawonetsa chidwimphamvu zamagetsi. Kukhazikika kwa chip komanso kuchepetsa kukana kwamagetsi komwe kumapangidwa kumathandizira kuchepetsa mphamvu yamagetsi, chinthu chofunikira kwambiri pazida zoyendetsedwa ndi batire ndi makina omwe amayesetsa kugwira ntchito mokhazikika. Kuwongolera bwino kwamafuta ndi phindu lina lamkati. Mapangidwewa amathandizira kutayika koyenera kwa kutentha komwe kumapangidwa panthawi yogwira ntchito kudutsa gawoli, nthawi zambiri kumawonjezedwa ndi masinki otentha ophatikizika, potero kumakulitsa nthawi yachiwonetsero ndikuletsa kuwonongeka kwa kutentha. Kapangidwe kaluso kameneka kamatsimikizira kuti ngakhale pakugwira ntchito mosalekeza, chiwonetserochi chimagwira ntchito bwino popanda kugonja chifukwa cha kutentha.
Kusinthasintha kwa ma COB LCDs kumatsimikiziridwa ndi kutengera kwawo kofalikira m'magawo osiyanasiyana. M'malo ogwiritsira ntchito anzeru, Malio'sGawo la LCD Display COB Module ya Magetsi Mamitandi fanizo lofunika kwambiri. Ma modulewa amapangidwa kuti amveke bwino, amadzitamandira ndi kusiyana kwakukulu komwe kumapangitsa kuti munthu aziwoneka bwino ngakhale padzuwa lolunjika - chinthu chofunikira kwambiri pakugwiritsa ntchito mita yakunja kapena yakunja. Kugwiritsa ntchito kwawo mphamvu zochepa komanso kutalika kwa moyo wawo kumatsimikiziranso kuyenerera kwawo pazida zofunika kwambiri. Kupitilira pazithandizo, ma COB LCD amapeza mwayi wawo pazida zamankhwala, monga ma oximeters ndi zida za X-ray, pomwe kudalirika kosasunthika komanso kuwonera kwatsatanetsatane sikungakambirane. Mapulogalamu amagalimoto amawonjezeranso COB pazowonetsera padashboard ndi makina opangira infotainment, kupindula ndi kulimba kwawo komanso kuwoneka bwino. Ngakhale m'makina akumafakitale, pomwe zowonetsera zimapirira zovuta zogwirira ntchito, ma COB LCD amapereka malingaliro odalirika owoneka.
COB vs. COG: Kugwirizana kwa Mafilosofi Apangidwe
Kumvetsetsa kwapang'onopang'ono kwaukadaulo wowonetsera nthawi zambiri kumafuna kusiyanitsa pakati pa njira zomwe zimawoneka ngati zofanana. M'nkhani yophatikizira mawonetsero, mawu ofupikitsa awiri amawuka: COB (Chip-on-Board) ndiCOG (Chip-on-Glass). Ngakhale onsewa amayang'ana kuchepetsa ndi kupititsa patsogolo magwiridwe antchito, kusiyana kwawo koyambira kumadzetsa zabwino zambiri komanso ntchito zomwe amakonda.
Kusiyanitsa kwakukulu kuli mu gawo lapansi pomwe dalaivala IC amayikidwa. Monga tafotokozera, ukadaulo wa COB umayika IC mwachindunji pa PCB, yomwe imalumikizana ndi LCD. Mosiyana ndi izi, ukadaulo wa COG umadutsa PCB yachikhalidwe palimodzi, ndikukweza dalaivala IC molunjika pagawo lagalasi la gulu la LCD. Kulumikizana kwachindunji kwa IC ndi galasi kumapangitsa kuti pakhale gawo lophatikizika kwambiri komanso lowoneka bwino, zomwe zimapangitsa COG kukhala chisankho chofunikira kwambiri pazida zomwe kuwonda kwambiri komanso kulemera pang'ono ndizofunikira kwambiri, monga ma foni a m'manja, ma smartwatches, ndi zida zina zamagetsi zamagetsi.
Kuchokera pamawonekedwe ndi kukula kwake, ma COG LCD amakhala ndi mbiri yocheperako chifukwa chosowa PCB yosiyana. Kuphatikizika kwachindunji kumeneku kumathandizira kuya kwa gawoli, ndikuwongolera mapangidwe azinthu zowonda kwambiri. COB, ngakhale ikadali yophatikizika modabwitsa poyerekeza ndi matekinoloje akale, imasunga kusinthasintha komwe kumaperekedwa ndi PCB, kulola masanjidwe ovuta komanso osinthika. Izi zitha kuphatikizira kuphatikizira zina kapena zozungulira zovuta molunjika pa bolodi, zomwe zitha kukhala zopindulitsa pazinthu zina zomwe zimafuna luntha lokulirapo kapena kuphatikiza kozungulira.
Pankhani ya magwiridwe antchito ndi kulimba, matekinoloje onsewa amapereka kudalirika kwakukulu. Komabe, ma COG ma LCD, chifukwa chokhala ndi malo olumikizirana ochepa (IC molunjika pagalasi), nthawi zina amatha kupereka m'mphepete mwa kulimba kolimba motsutsana ndi mitundu ina ya kupsinjika kwamakina. Mosiyana ndi izi, ma COB LCDs, okhala ndi IC yokhazikika bwino pa PCB yokhazikika komanso yotsekeredwa, nthawi zambiri amapereka nsanja yolimba kwambiri yogwirira ntchito yonse, makamaka pomwe kukana kugwedezeka kapena kukhudzidwa ndikofunikira. The repairability mbali komanso divers; pamene ma modules a COG amadziwika kuti ndi ovuta kukonzanso chifukwa cha kugwirizana kwachindunji pa galasi, ma modules a COB, ndi IC awo pa PCB yosiyana, akhoza kupereka njira zosavuta zokonzekera ndi zosintha.
Malingaliro a mtengo amakhalanso ndi dichotomy. Popanga ma module okhazikika kwambiri, ukadaulo wa COG ukhoza kukhala wotsika mtengo kwambiri chifukwa cha njira zosavuta zolumikizirana komanso kuchepetsa kugwiritsidwa ntchito kwa zinthu pakapita nthawi. Komabe, pamapulogalamu omwe amafunikira kusinthidwa mwamakonda kapena kuthamanga kwa voliyumu yocheperako, ukadaulo wa COB nthawi zambiri umapereka mwayi wokulirapo pazachuma, chifukwa ndalama zopangira magalasi amtundu wa COG zimatha kukhala zoletsa. Luso la Malio limafikira mpakaLCD/LCM Segment Segment for Metering, yopereka njira zambiri zosinthira makonda kuphatikiza mtundu wa LCD, mtundu wakumbuyo, mawonekedwe owonetsera, komanso kutentha kwa magwiridwe antchito. Kusinthasintha kumeneku pakukonza mayankho owonetsera kumalankhula ndi kusinthika kwachilengedwe kwa matekinoloje ngati COB pokwaniritsa zofunikira, pomwe kuthekera kosintha kapangidwe ka PCB ndikofunika kwambiri.
Kusankha pakati pa COB ndi COG pamapeto pake kumatengera zofunikira za pulogalamuyo. Pamapangidwe omwe amayika patsogolo kuonda komaliza komanso zamagetsi zamagetsi zogulira kwambiri, COG nthawi zambiri imakhala patsogolo. Komabe, pamapulogalamu omwe amafunikira magwiridwe antchito amphamvu, kusinthasintha kwa mapangidwe, komanso kufananiza kwamagetsi kwapamwamba kwambiri, COB imakhalabe njira yokakamiza kwambiri. Kuthekera kwake kuthandizira mayendedwe ovuta kwambiri pa PCB yophatikizika kumapangitsa kuti ikhale yofunikira pamafakitale, magalimoto, komanso zida zapadera.
Tsatanetsatane wa Tsogolo la Zowonetsera Zophatikizidwa
Kusinthika kwaukadaulo wowonetsera ndikufunafuna kosalekeza kukonza kwakukulu, kumveketsa bwino, komanso kuchepetsedwa kwa mawonekedwe. Ukadaulo wa COB LCD, wokhala ndi zabwino zake zenizeni, watsala pang'ono kukhalabe wofunikira pakupita patsogolo kumeneku. Kupita patsogolo kosalekeza kwa zida zophatikizira, njira zomangira, ndi IC miniaturization kupititsa patsogolo ma module a COB, kukankhira malire a zomwe zingatheke pakuphatikizana kowonetsera.
Kutha kulongedza katundu wambiri, zomwe zimapangitsa kuti "ultra-micro pitch" ziwonetsedwe, zidzatulutsa zowonetsera zowoneka bwino komanso zopanda msoko. Kachulukidwe kameneka kamathandiziranso kuti pakhale kusiyana kwakukulu, chifukwa kusakhalapo kwa zinthu zonyamula zachikhalidwe kumachepetsa kutuluka kwa kuwala ndikuwonjezera kuya kwakuda. Kuphatikiza apo, kulimba kwachilengedwe komanso kasamalidwe koyenera kamafuta kanyumba za COB kumawapangitsa kukhala oyenera kugwiritsa ntchito zowonetsera zomwe zikubwera, kuphatikiza zowoneka bwino komanso zowonekera, pomwe njira zachikhalidwe zimavutikira kuti zikwaniritse zofunikira zakuthupi.
Malio, ndi kudzipereka kwake pakuwonetsa mayankho otsogola, amawunika mosalekeza izi. Mitundu yawo yazinthu za COB, kuyambira pazithunzi zowoneka bwino kwambiri mpaka zowonetsera zapadera za zida zovutirapo, zimatsimikizira ukadaulo wawo wogwiritsa ntchito luso laukadauloli. Tsogololo mosakayikira liziwona ma COB LCDs ali patsogolo pamapangidwe apamwamba azinthu, kupangitsa kuti malo owoneka bwino, okhazikika, komanso osapatsa mphamvu m'mafakitale onse.
Nthawi yotumiza: Jun-06-2025