COB (Chip on Board) LED displays ye tekinologiya wa display ow’omulembe atuuka ku kugatta okw’ekika ekya waggulu n’okukola obulungi nga zipakira butereevu chips za LED ku circuit boards. Bw’ogeraageranya n’ebintu eby’ennono ebya SMD (Surface Mount Device) LED displays, tekinologiya wa COB akuwa enkizo nnyingi mu kwesigika, okwakaayakana okwa kimu, n’okulaba. Mu myaka egiyise, ebadde ekozesebwa nnyo mu kwolesebwa kw’ebyobusuubuzi, okuyimba ku siteegi, n’okulondoola okw’omutindo ogwa waggulu-.
Okusinziira ku ndowooza y’eby’ekikugu, ekikulu mu by’okwolesebwa ebya COB LED kiri mu ngeri gye bipakiddwamu. Chip enywezebwa butereevu ku substrate era ekuumibwa ne epoxy resin oba silicone, ekikendeeza nnyo ku muwendo gw’ebiyungo bya solder era bwe kityo n’omuwendo gw’okulemererwa. Dizayini eno tekoma ku kulongoosa kukankana n'okuziyiza kw'ekintu kino kyokka naye era egonjoola bulungi ekizibu kya "ekitangaala ekifu" ekitera okubeera mu ssirini za LED ez'ennono. Ekirala, tekinologiya wa COB awa eddoboozi lya pikseli entono, okusobozesa okusalawo okw’amaanyi n’ebifaananyi ebisingawo, ebitegeerekeka obulungi, ekigifuula esaanira naddala okulaba okumpi-okumpi.
Mu mutindo gw’okwolesebwa, eby’okwolesebwa ebya COB LED biwa enjawulo ennungi ennyo n’okuzzaawo langi. Olw'okuba oluwuzi lw'okupakinga lukola okulongoosa okw'amaaso okw'okubiri okutuufu ennyo ku nsibuko y'ekitangaala, okusaasaana kw'ekitangaala kuba kwa kimu, okwewala ekikolwa "eky'empeke" ekitera okubeera mu ssirini ez'ennono.
Ekirala, omutindo gwayo ogw’okuzza obuggya ogw’amaanyi n’amaanyi amatono agagikozesa bigifuula okulonda okulungi ennyo mu kwolesebwa kw’ebifaananyi okukyukakyuka n’okukuuma amaanyi.
Mu kiseera kino, ebyokulabirako bya COB LED biyingidde mpolampola mu butale obwa waggulu-nga ebifo ebiduumira, eby’amaguzi ebya waggulu-eby’amaguzi, n’okukuba ebifaananyi mu ngeri ey’omubiri (virtual reality photography). Olw’okukwatagana kwa tekinologiya wa Mini/Micro LED, eby’okwolesebwa bya COB bisuubirwa okwongera okukendeeza ku sayizi, okulongoosa okumasamasa, n’okwongera ku kukekkereza amaanyi, okufuuka obulagirizi obukulu obw’enkulaakulana mu katale k’okulaga ku ssirini ennene-. Wadde nga ssente zaayo ez’okukola zikyali waggulu okusinga ku nkola ez’ennono, okuvuganya kwa COB LED ku katale kugenda kwongera okukula nga tekinologiya akula n’okulinnya.