COB (Chip on Board) LED displays, sɛ awoɔ ntoatoasoɔ a ɛdi hɔ-akyerɛɛ mfiridwuma, wɔde di dwuma kɛseɛ wɔ high-end display applications mu ɛnam wɔn high-density nkabom, nsonsonoeɛ kɛseɛ, ne ahobanbɔ a ɛkyɛn so nti. Nanso, wɔn nneɛma a wɔyɛ no a ɛyɛ den no si nneɛma a wɔyɛ no yiye so dua titiriw, na ɛno nya ahotoso a ɛwɔ nneɛma no mu ne ne nkwa nna so nkɛntɛnso tẽẽ.
Nneɛma ne chip screening yɛ ade titiriw wɔ quality control mu. LED chips ne substrate nneɛma a ɛyɛ papa-ho hia na ama wɔahwɛ ahu sɛ ɔyɛkyerɛ no yɛ adwuma na ɛsɛ sɛ wɔyɛ nneɛma a ɛba no mu nhwehwɛmu a emu yɛ den, a nea ɛka ho ne sɔhwɛ a ɛfa nneɛma te sɛ hann a ɛyɛ adwuma yiye, asorɔkye tenten a ɛkɔ so pɛpɛɛpɛ, ne ɔhyew a ɛko tia ho, na wɔasiw huammɔdi a edi hɔ esiane nneɛma no sintɔ nti ano.
Encapsulation process control nya COB displays no gyinabea ne wim tebea a ɛko tia no so nkɛntɛnso tẽẽ. Ɛsɛ sɛ wɔyɛ akwan te sɛ die bonding, wire bonding, ne glue dispensing wɔ beae a mfutuma-mfura nni mu, de mfiri a wɔde yɛ adwuma di dwuma de hwɛ gluu dodow ne soldering hyew so pɛpɛɛpɛ de siw ɔhaw ahorow te sɛ solder joints a ɛyɛ nwini ne gluu mpaapaemu ano. Bio nso, wɔde nneɛma a wɔde kata so a wotumi de ho to so kɛse te sɛ epoxy anaa silicone di dwuma de ma nsu ne UV a ɛko tia no yɛ kɛse.
Pixel pitch ne optical consistency yɛ nneɛma atitiriw a ɛkyerɛ sɛnea ɔyɛkyerɛ no yɛ adwuma. COB displays taa yɛ fine-pitch design, ɛhwehwɛ sɛ calibration mfiridwuma a ɛyɛ pɛpɛɛpɛ de hwɛ hu sɛ hann ne kɔla yɛ pɛ na wɔakwati pixelation anaa artifacts. Bere a wɔreyɛ no, wɔde mfiri titiriw a wɔde hwɛ aniwa so di dwuma de yɛ point-by-point calibration wɔ module biara so de hwɛ hu sɛ ɛyɛ pɛpɛɛpɛ wɔ screen no nyinaa so.
Mpanyinyɛ ne ahotoso a wɔsɔ hwɛ ne ade a etwa to a wɔde bɔ wɔn ho ban ansa na wɔde amena. Wɔsɔ nneɛma hwɛ denneennen, a ɔhyew ne ɔhyew a ɛkɔ soro, ɔhyew a ɛyɛ hu, ne bere a wɔde yɛ adwuma a ɛtrɛw ka ho, de yɛ adwumayɛ ho mfonini wɔ mmeae a ɛyɛ den, de hwehwɛ huammɔdi a ɛba ntɛm, na wɔhwɛ hu sɛ ɛbɛkɔ so agyina bere tenten-.
Sɛ yɛbɛbɔ no mua a, ɛsɛ sɛ COB LED a wɔde kyerɛ nneɛma a ɛyɛ papa sohwɛ no yɛ nea ɛkɔ akyiri wɔ adeyɛ no nyinaa mu, efi nneɛma a wɔpaw so kosi nhyehyɛe a wɔyɛ no yiye ne sɔhwɛ a emu yɛ den so, na ama wɔanya kari pɛ wɔ ahotoso a ɛkorɔn ne ɔyɛkyerɛ a ɛkorɔn ntam, na wɔadi gua so ahwehwɛde a ɛfa ɔyɛkyerɛ a ɛkorɔn-a ɛyɛ papa ho dwuma.