He aha ke ano o ka Led Display

Hōʻike LEDhe hōʻike e hoʻohana ana i nā kukui emitting diodes, ʻike ʻia hoʻi ʻo "LED panel", i hoʻohana nui ʻia i ka hoʻokuʻu ʻana i ka ʻike, nā pāpaho waho, nā kahua pāʻani, a me nā hāʻina hōʻike nui i loko. He mea maʻamau i nā hōʻailona kaʻa waho a i ʻole nā ​​hōʻailona kaʻa kaʻa lehulehu.

Hōʻike ʻia nā dot matrix LED ma ke kaʻa kaʻa o MTR Light Rail Phase 24-bit multiplexing, ʻehiku-segment tube digital me 12 pine. ʻO ka hapa nui o nā mea hōʻikeʻike waho a me kekahi o loko, ua haku ʻia me nā diodes -emitting ʻē aʻe he nui i loko o ka puʻupuʻu ʻokoʻa, a ʻo ka -diodes uila o nā kala ʻulaʻula, ʻōmaʻomaʻo a me ka uliuli i hoʻonohonoho ʻia i nā modula huinaha, e hana ana i nā kiko kiko-ka waihoʻoluʻu piha ma lalo o ka hoʻokele i hoʻonohonoho ʻia, a ʻike ʻia ka hoʻonā e ka mamao ma waena o nā kiko waena ma waena o nā pika. ʻOi aku ka 1,500 kapuaʻi ka lōʻihi o ka hōʻike ʻana i nā kukui uila -emitting diode nui loa a aia ma ka Fremont Street Light Show ma Las Vegas, Nevada, USA. Hoʻohana ka hapa nui o nā hōʻike i loko o ka ʻaoʻao -mauna SMT surface-mauna ʻenehana ʻenehana LED nā ʻāpana (akā, aia ke ʻano e hoʻonui i ka mākeke waho). Loaʻa i kēlā me kēia module SMD pixel nā diodes ʻulaʻula, ʻōmaʻomaʻo, a polū i loko o kahi pūʻolo, a laila kūʻai ʻia i ka papa PCB. Hoʻopili ʻia nā diodes liʻiliʻi ma mua o nā nila. ʻOi aku ka maikaʻi o ka waihoʻoluʻu ʻana o kēia hōʻike a hōʻemi i ka mamao o ka pixel haʻahaʻa ma kahi o 25% i hoʻohālikelike ʻia me nā hōʻike i hana ʻia me nā diodes light-emitting discretely.

He 600 cd/m2 (candela/m², nits) ka mālamalama o nā LED i hoʻohana ʻia i loko o ka hale, i lawa no ka hoʻohana ʻana i nā ʻoihana a me nā hale kūʻai kūʻai kūʻai, akā ma nā wahi ʻoi aku ka mālamalama, pono paha ka ʻōlinolino kiʻekiʻe, e like me ke ʻano a me nā hōʻikeʻike kaʻa, a pono e hoʻomaikaʻi hou ʻia ke kukui o ke kahua. pili. Pono nā kiʻi wikiō i ka haʻahaʻa haʻahaʻa a me ka mahana o ka waihoʻoluʻu, akā ʻo ka mahana kala o nā hōʻike LED maʻamau ʻo 6500-9000K, ʻoi aku ka kiʻekiʻe ma mua o nā pono o nā kiʻi wikiō. No ka hoʻohana ʻana i waho, koi maʻamau ʻo 5000 nits, akā ma nā wahi me ka lā pololei, pono paha ka māmā māmā o 8000 nits.

ʻAʻole like me nā mea kūʻai maʻamau a me nā lako hōʻike pāʻoihana (LCD, PDP, DLP, a me nā mea ʻē aʻe), ʻo "light{1}}emitting diode displays" no ka ʻenehana -mea paahana, a ʻo ka hapa nui o "light-emitting diode displays" ua hoʻopau ʻia ma ke ʻano he papahana ʻenekinia. Hoʻohana nui ʻia nā mea hōʻike maʻamau a maʻamau i nā kaiapuni o loko, me ka liʻiliʻi haʻahaʻa, ke kū ʻole o ka wā, a me ke ola pōkole. Hiki i ka ʻōlinolino o ka "LED hōʻike" ke piʻi aku ma mua o 10,000 nits, hiki ke hoʻomaʻemaʻe piha ʻia, ka uahi -hōʻike, a me ka lepo-e hōʻoiaʻiʻo, kūpono ia no nā kaiapuni waho. I ka manawa like, no ka mea, hiki i ke ola o ke kukui{11}}emitting diode ke hiki i 100,000 mau hola, ʻoi aku ka kiʻekiʻe o ke ola ma mua o nā lako hōʻike maʻamau. ʻO ia ke kumu i hoʻohana nui ʻia ai nā "LED hōʻike" ma ke kahua o ka hōʻailona kaʻa a me nā hōʻailona kaʻa kaʻa.

Mai ka hiʻohiʻona o ke kumu o ka hoʻokuʻu māmā, kēlā me kēia pika o ka "LED hōʻike" he mea LED kūʻokoʻa, i hoʻonohonoho ʻia a kūʻai ʻia i ka papa PCB mua o ka huahana ma ke ʻano kikoʻī, a hoʻomalu i ka ʻōlinolino, huakaʻi hele, hōʻailona a i ʻole ke kiʻi o kēlā me kēia LED ma o ke ʻano o nā kaʻa a me nā ʻōnaehana hoʻokele. ʻO nā pika a pau i hoʻomālamalama ikaika ʻia nā mea LED. Hōʻike pinepine ʻia nā mea hōʻike maʻamau i kekahi ʻano panel e ka backlight, a ʻo ke ʻano kūikawā o ka panel e ʻike i nā degere like ʻole a me nā ala o ka leakage māmā e hōʻike i ke kiʻi. ʻOiai he kukui ikaika ka PDP, hana ʻia a kūʻai ʻia ʻo ia ma ke ʻano he huahana maʻamau i nā ʻāpana liʻiliʻi -panel.