He aha ke LED?

He pōkole ʻo LED no Light Emitting Diode.Hoʻopuka ka LED i ke kukui ma muli o ka luminescence uila.Ua ʻike ʻia ʻo ia he "kukui anuanu" ʻoiai, ʻaʻole like me nā puʻupuʻu incandescent kahiko, ʻaʻole hana ʻia ke kukui ma ka hoʻomehana ʻana i kahi filament metala.ʻO ka diode, ma ka ʻaoʻao ʻē aʻe, e hoʻopuka i ka mālamalama i ka wā e kahe ana ma waena o nā semiconductor silicon i uhi ʻia.ʻO ia kekahi o nā ala ʻoi loa o ka ikehu a me ka mālama mana e hana i ka mālamalama.

Aia ka LED i nā mea paʻa me nā ʻāpana ʻole a hoʻoheheʻe pinepine ʻia i loko o ka plastic transparent.Mālama kēia i ka lōʻihi kiʻekiʻe.Ke hoʻā ʻia kahi LED, hoʻopuka ʻo ia i ka wela ʻole.Hoʻemi kēia i ka pilikia o ka hoʻomaha ʻana i nā ʻāpana uila.

ʻO ka LED mua i hanaʻia e ka mea hoʻopuka Lūkiniʻo Oleg Losev i ka makahiki 1927. No nā makahiki he nui, hiki ke hana i nā LED infrared,ʻulaʻula a melemele.Loaʻa kēia mau diodes i nā mea āpau mai nā mana mamao a i nā lekiō uaki.

ʻAʻole hiki i ka makahiki 1994 i hiki i ka ʻepekema Kepani ʻo Shuji Nakamura ke hōʻike i kahi LED polū maikaʻi.Ua hahai koke nā LED keʻokeʻo a me ka ʻōmaʻomaʻo, e kau ana i ke kumu no ka hoʻololi LED a mākou i ʻike ai i ka ʻenehana kukui a hōʻike.

Pehea e hana ai ka hōʻike LED?

ʻO kahi hōʻike LED he nui nā LED kokoke loa.Ma ka hoʻololi ʻana i ka ʻōlinolino o kēlā me kēia LED, hana nā diodes i kiʻi ma ka hōʻike.

No ka hana ʻana i kahi kiʻi kala ʻulaʻula, hoʻohana ʻia nā loina o ka hui ʻana i nā kala additive, kahi e hana ʻia ai nā kala hou ma ka hui ʻana i nā kukui i nā kala like ʻole.Aia kekahi hōʻike LED me nā LED ʻulaʻula, ʻōmaʻomaʻo a me ka uliuli i kau ʻia ma kahi ʻano paʻa.Hoʻohui kēia mau kala ʻekolu e hana i kahi pika.Ma ka hoʻoponopono ʻana i ka ikaika o nā diodes, hiki ke hana ʻia nā piliona kala.Ke nānā ʻoe i ka pale LED mai kahi mamao, ʻike ʻia ka ʻano o nā pika kala ma ke ʻano he kiʻi.

He aha ka RGB?

He pōkole ʻo RGB no ka ʻulaʻula, ʻōmaʻomaʻo a me ka uliuli.He hoʻolālā kala e hoʻohana i ka ʻoiaʻiʻo o nā kala ʻike ʻiahiki ke hui pu ia mai keia mau kumu ekolukala kala.Hoʻohana ʻia ia ma nā ʻano hōʻike a pau, me nā hōʻike LED.

He aha ka SMD?

ʻO SMD ke ʻano o ka Mea Mauna Mauna.He mau ʻāpana uila kēia i kau pono ʻia ma luna o ka papa kaapuni paʻi - ʻaʻole e like me ka wā ma mua ma ke kūʻai ʻana i ka pine metala ma lalo o ka papa kaapuni.

I ka ʻenehana hōʻike LED, hoʻohana ʻokoʻa iki ka manaʻo SMD.ʻO kahi hōʻike SMD he hōʻike LED kahi i hoʻokomo ʻia ai nā diodes ʻulaʻula, ʻōmaʻomaʻo a me ka uliuli i loko o kahi encapsulation plastik liʻiliʻi i kau ʻia ma luna o nā papa kaapuni paʻi o ka hōʻike.Ke hoʻopili ʻia nā diodes ma kēia ʻano, ʻoi aku ka liʻiliʻi o ka lumi, e hiki ai ke hana i nā hōʻike me ka liʻiliʻi o ka mamao ma waena o nā diodes a me ka hoʻonā kiʻekiʻe.

Ehia ka mana e hoʻohana ʻia e kahi hōʻike LED?

He ʻenehana ikaika loa ka LED, no laila ka hoʻohana nui ʻia ʻana o nā puʻupuʻu LED mālama ikehu i kēia mau lā.ʻO ka nui o ka mana o nā diodes i kahi hōʻike LED e pili ana i ke ʻano o ka hōʻike, ka mālamalama a me ka hoʻohana.

Nui nā ʻano LED a me nā hōʻike.ʻO ka hoʻohana mana o kahi hōʻike i loko, no ka laʻana, e ʻokoʻa ia mai kahi hōʻailona kikohoʻe waho, pono e ʻike ʻia i ka lā pololei.ʻO ka mālamalama o ka hōʻike kekahi kumu nui.Pono e akaka nā kiʻi, akā ʻaʻole pono ke kukui mai ka hōʻike.Pono e ʻoi aku ka mālamalama o kahi hōʻike LED waho i ka lā ma mua o ka hāʻule ʻana o ka pōʻeleʻele.

He hopena nō ka mea i hōʻike ʻia.Hōʻike nā LED i nā kiʻi ma ka hoʻā ʻana a me ka hoʻoponopono ʻana i ka ʻōlinolino o nā diodes kala.No laila ke kiʻi keʻokeʻo holoʻokoʻa me ka kikokikona ʻeleʻele e koi ai i nā diodes i hoʻomālamalama ʻia - a ʻoi aku ka mana - ma mua o ke kikokikona keʻokeʻo ma kahi ʻeleʻele.

Pehea ka lōʻihi o ka hōʻike LED?

He paʻakikī ke haʻi i kekahi mea kikoʻī e pili ana i ke ola o kahi hōʻike LED e like me nā mea he nui i komo i ka pāʻani.Eia nō naʻe, me ka mālama pono ʻana, hiki i kahi hōʻike ke hoʻomau no nā makahiki he ʻumi.E like me nā ʻano uila a pau, pili pū ka manaʻolana o ke ola e ka hoʻohana ʻana i kēlā me kēia lā a me ke kaiapuni a puni ka hōʻike.ʻO nā kiʻi māmā a me kahi kiʻekiʻe o ka'ōlinolino eʻoi aku kaʻaʻahu ma ka hōʻike ma mua o nā kiʻiʻeleʻele a me kahi haʻahaʻa haʻahaʻa.Hiki ke komo pū nā mea e like me ka haʻahaʻa a me ka paʻakai i ka lewa.

I ka wā o ke ola o kahi hōʻike LED, e emi ana ka puka kukui mai nā diodes.Ma ka nui o ka hilinaʻi i ke ʻano a me ka hana o nā diodes.ʻAʻole hoʻohana ka nui o nā hōʻike LED i ko lākou mālamalama piha, no laila ʻaʻole pilikia ka hōʻemi.

He aha ka PIXEL PITCH a me ka hoʻonā hōʻike?

ʻO ka mamao ma waena o nā diodes hōʻike LED e hoʻoholo i ka hoʻonā o ka hōʻike.ʻO ka mamao i ke kikowaena o ka hui pili e ana ʻia mai ke kikowaena o kēlā me kēia hui o nā diodes ʻulaʻula, ʻōmaʻomaʻo a me ka uliuli.Ua ʻike ʻia kēia mamao he pixel pitch.Hoʻokumu kēlā me kēia hui o nā diodes i kahi pika.

Inā loaʻa i kahi hōʻike LED ka pitch pika o 1 knm, aia paha he 100 x 100 pixels no kēlā me kēia mika square o ka hōʻike.Hāʻawi ʻia ka hoʻonā o kahi hōʻike ma ke ʻano he mau helu e hōʻike ana i ka laulā a me ke kiʻekiʻe i nā pika.Inā loaʻa iā ʻoe kahi pale 6 x 8 mika me 1 knm i ka pitch pixel, loaʻa iā ia ka hopena o 600 x 800 pixels.

Aia nā pale LED me kahi pixel pitch o nā wahi a pau mai kekahi mau kenimika a i hoʻokahi millimeter.

He aha ka'u e koho ai?

ʻO ka hoʻonā āu e makemake ai no kahi hōʻike LED e pili ana i ka mamao nānā.Mai ka mamao hea e nānā ai kāu poʻe anaina i ka hōʻike?Inā kokoke ʻoe i kahi hōʻike LED haʻahaʻa haʻahaʻa (ma waena o nā diodes), paʻakikī ke ʻike i ka mea ma ka hōʻike.

Loaʻa ka pilina ma waena o ka hoʻonā hōʻike a me ke kumukūʻai.ʻOi aku ka kiʻekiʻe o ka hoʻonā, ʻoi aku ka nui o nā diodes i kēlā me kēia m2 - a no laila ke kiʻekiʻe o ke kumukūʻai m2.

Inā ʻoe e kau nei i kahi hōʻailona kikohoʻe ma ke ala nui a i ʻole ma ka ʻaoʻao o ka hale, e ʻike ʻia ia mai kahi mamao.Maʻaneʻi, ʻaʻole pono ka hōʻike kiʻekiʻe - a he kumu kūʻai ʻole.Inā he hōʻike ma ka papahele ma waenakonu o kahi hale kūʻai, e hoʻokokoke loa ka poʻe i laila.Maʻaneʻi, ʻoi aku ka maikaʻi o kahi hōʻike hoʻonā kiʻekiʻe.

ʻO ke kūlana koʻikoʻi maikaʻi no nā hōʻike LED ʻo ia: 1 mm pixel pitch no kēlā me kēia mika o ka mamao nānā.