Monga ukadaulo wotsatira-wowonetsera m'badwo wotsatira, zowonetsera za LED za COB (Chip on Board) zidapangidwa kuti zizitha kuthana ndi malire aukadaulo wakale wa SMD (surface mount) kudzera pamapakedwe ophatikizika, kukulitsa-kachulukidwe, zodalirika, komanso zowoneka bwino kwambiri. Kapangidwe kameneka sikumangomasuliranso malire a magwiridwe antchito a zowonetsera za LED komanso kumapereka njira yatsopano yothetsera-mawonekedwe apamwamba.
Malinga ndi luso, mapangidwe a COB amayika chip cha LED mwachindunji pa PCB substrate, kuchotsa mabulaketi akale ndi ma pad, kuchepetsa kwambiri kuchuluka kwa ma pixel ndikupangitsa kuti -igwiritse ntchito bwino ma Mini/Micro LEDs. Njira yophatikizikayi imawonjezera kuchuluka kwa ma pixel pagawo lililonse, mwachitsanzo, ma ultra-apamwamba-mawonekedwe ochepera 1.0 pixels. Ukadaulo wopaka zinthu wa Coplanar umachepetsanso kukhwimitsa zenera, kumachepetsa moiré ndi zonyezimira, kumapangitsa kuti munthu aziwoneka mosalala-ndi kuwonera pafupi.
Kudalirika ndichinthu chofunikira kwambiri pamapangidwe a COB. Chip-kunyamula zinthu kumalepheretsa kuwala-gawo lotulutsa mpweya, kuliteteza ku chinyezi, fumbi, kugwedezeka, komanso kuchepetsa kulephera motengera kukula kwake poyerekeza ndi SMD. Komanso, COB imagwiritsa ntchito zokutira zakuda kwambiri kuti ziwongolere kusiyanitsa, pomwe pamwamba pake-kuchokera kugwero la kuwala kumachotsa kunyada. Kuphatikizidwa ndi ukadaulo wa High Dynamic Range (HDR), COB imapereka mawonekedwe owoneka bwino amitundu komanso tsatanetsatane wazithunzi zakuda.
Pamlingo wogwiritsa ntchito, mapangidwe a COB amayang'ana kwambiri kusinthika kuzochitika zilizonse. Kaya ndikuwonetsetsa bwino kwa data muchipinda chowongolera kapena kuwala kozama komanso mawonekedwe azithunzi pamalo owonetsera, kusasinthasintha kwake, kusagwiritsa ntchito mphamvu pang'ono, komanso moyo wautali zimakwaniritsa zofunika. M'tsogolomu, ndi kusintha kwa matekinoloje a flip-chip ndi kutumiza anthu ambiri, COB idzapititsa patsogolo kusinthika kwa zowonetsera za LED kuti zikhale zogwirizana ndi zosinthika, ndikupitiriza kutsogolera luso la makampani owonetsera.