Pehea e hana ai ka ʻōnaehana Backlight ma nā kīwī LED
Pengantar
Ua lilo nā kīwī LED (Light Emitting Diode) i koho makemake ʻia no nā mea kūʻai aku he nui, e hāʻawi ana i ka hui pū ʻana o ke kiʻi kiʻekiʻe, ka hoʻolālā nani, a me ka hoʻohana ʻana i ka mana ʻoi aku ka maikaʻi ma mua o nā ʻenehana mua e like me CRT (Cathode Ray Tube) a i ʻole nā kīwī plasma. ʻO kekahi o nā mea nui e hiki ai ke hōʻike maikaʻi loa ma nā kīwī LED ʻo ia ka ʻōnaehana backlight. E kūkākūkā kēia ʻatikala pehea e hana ai ka ʻōnaehana backlight ma nā kīwī LED, mai ke kumumanaʻo kumu a hiki i ka ʻenehana hou loa i hoʻohana ʻia.
1. Manaʻo kumu o ke kukui hope ma nā kīwī LED
ʻO ke kumu, aia kahi pale kīwī LED i kahi panela LCD (Liquid Crystal Display), ʻaʻole hiki ke hoʻopuka i ka mālamalama ma kāna iho. Pono nā panela LCD i kahi kumu kukui hou e hōʻike i kahi kiʻi maopopo a ʻālohilohi. ʻO kēia kahi e pāʻani ai ka backlight, a i ʻole ke kukui hope, i kahi kuleana koʻikoʻi. ʻO ka backlight kahi ʻōnaehana kukui i loaʻa ma hope a ma ka lihi paha o ka panela hōʻike, e hoʻomālamalama ana i ka panela LCD mai hope, e ʻae ana i ke kiʻi e ʻike ʻia e ka mea nānā.
2. Nā ʻAno o ke Kukui Hope
Aia kekahi mau ʻano ʻōnaehana backlight i hoʻohana ʻia i nā kīwī LED, a he mau pono a me nā hemahema ko kēlā me kēia.
a. LED Lihi-Mālamalama
ʻO Edge-Lit kahi ʻano kukui hope kahi e kau ʻia ai nā LED ma nā kihi a i ʻole nā ʻaoʻao o ka pale, a ua hoʻopili ʻia ke kukui ma o kahi alakaʻi kukui ma hope o ka pale e hoʻomālamalama i ka panela LCD holoʻokoʻa.
Pono:
- Hoʻolālā lahilahi
– Nā kumukūʻai hana haʻahaʻa
nele:
– ʻAʻole like ke kukui; ʻike ʻia kekahi mau ʻāpana o ka pale he ʻoi aku ka mālamalama a ʻoi aku ka pouli ma mua o nā mea ʻē aʻe.
– Nā pae ʻokoʻa haʻahaʻa i hoʻohālikelike ʻia me nā ʻōnaehana Full-Array.
b. LED Piha-Array
Hāʻawi ʻo Full-Array i nā LED ma ka ʻaoʻao hope holoʻokoʻa o ka panela LCD, e ʻae ana i ka hoʻomālamalama like ʻana a me ka hiki ke hoʻonohonoho ponoʻī i nā ʻāpana kukui.
Pono:
– ʻOi aku ka maikaʻi o ke ʻano like o ke kukui
– Nā pae ʻokoʻa kiʻekiʻe ma o ka ʻenehana Local Dimming
nele:
– Hoʻolālā mānoanoa iki
– Nā kumukūʻai hana kiʻekiʻe
c. Hoʻopōʻeleʻele kūloko
ʻO ka Local Dimming kahi ʻenehana i hoʻohana pinepine ʻia me nā ʻōnaehana Full-Array. ʻAe kēia ʻenehana i nā wahi kikoʻī o ke kukui hope e pio a hoʻemi ʻia paha ka ikaika, ma muli o ka ʻike i hōʻike ʻia ma ka pale. No ka laʻana, hiki ke hoʻemi ʻia ka ikaika o ke kukui o nā wahi o ka pale e hōʻike ana i nā kala ʻeleʻele a ʻeleʻele paha e hoʻonui i ka ʻokoʻa a me ka hohonu ʻeleʻele.
3. Pehea e hana ai ka ʻōnaehana Backlight
Ma hope o ka hoʻomaopopo ʻana i nā ʻano o ke kukui hope, e ʻimi kākou pehea e hana ai ka ʻōnaehana kukui hope me nā kikoʻī hou aku.
a. LED Lihi-Mālamalama
Ma kahi ʻōnaehana LED Edge-Lit, kau ʻia nā LED ma nā kihi o ka pale, ma luna, lalo, a i ʻole nā ʻaoʻao. A laila alakaʻi ʻia ke kukui mai kēia mau LED ma o kahi moʻo o nā mea hoʻomālamalama a me nā papa alakaʻi kukui e hoʻolaha i ke kukui ma ka ʻili holoʻokoʻa o ka pale. ʻOiai he maʻalahi, ʻo ka pilikia nui o kēia ʻōnaehana ka hōʻoia ʻana i ka hoʻolaha like ʻana o ke kukui me ka ʻole o nā hopena 'kahe' a i ʻole 'halo' ma kekahi mau wahi o ka pale.
b. LED Piha-Array
Ma kahi ʻōnaehana LED Full-Array, ua kau ʻia nā LED ma ka ʻāpana holoʻokoʻa ma hope o ka panela LCD. Ua lako kēia ʻōnaehana me kahi diffuser e hoʻolaha like i ke kukui LED ma ka pale. Ma muli o ka hoʻolaha like ʻana o nā LED, ʻoi aku ka maikaʻi o ka hoʻolaha ʻana o ke kukui ma mua o Edge-Lit. Eia kekahi, kākoʻo kēia ʻōnaehana i ka ʻenehana Local Dimming, e ʻae ana i ka mana pololei ma luna o ke kukui e pili ana i ka ʻike e hōʻike ʻia ana, e hopena ana i ka maikaʻi o ke kiʻi.
4. ʻenehana hou loa ma ka ʻōnaehana Backlight
Me nā holomua ʻenehana, ua holomua nui nā ʻōnaehana backlighting ma nā kīwī LED. ʻO kekahi o nā ʻenehana backlighting hou loa i hoʻohana ʻia i nā kīwī LED hou:
a. Nā Kiko Kuantum
Hoʻohana ka ʻenehana Quantum Dot i nā nanocrystals semiconductor e hana ana i ka mālamalama ke hōʻike ʻia i ka ikehu. Hiki i nā Quantum Dots ke hoʻomaikaʻi i ka maikaʻi o ke kiʻi ma ka hāʻawi ʻana i kahi spectrum kala ākea a ʻoi aku ka pololei. ʻO nā ʻōnaehana backlight e hoʻohana ana i nā Quantum Dots i hoʻokaʻawale pinepine ʻia he Full-Array a ua hoʻolālā ʻia e hana pū me nā LED polū e hana i nā kala ʻoi aku ka maoli.
b. MicroLED
He ʻenehana backlight ʻo MicroLED e hoʻohana ana i nā LED liʻiliʻi loa no kēlā me kēia sub-pixel ma ka pale. ʻAʻole e like me nā LED maʻamau, hiki iā MicroLED ke hana i ke kala a me ka mālamalama me ka ʻole o ka pono no kahi panela LCD. ʻOiai aia nō i kona wā mua o ka hoʻomohala ʻana a he pipiʻi iki, hoʻohiki kēia ʻenehana i ka maikaʻi o ke kiʻi me nā kala pololei, ke ʻano kiʻekiʻe, a me nā manawa pane wikiwiki.
c. MiniLED
ʻO MiniLED kahi ʻanuʻu ma waena o nā LED maʻamau a me MicroLED. Hoʻohana kēia ʻenehana i nā LED liʻiliʻi ma mua o nā LED maʻamau, e ʻae ana i ka mana pololei ma luna o nā wahi kukui. Me nā wahi i hiki ke hoʻomalu ʻia pākahi, kākoʻo ka ʻenehana MiniLED i nā pae ʻokoʻa kiʻekiʻe loa a hoʻemi i ka hopena "halo".
5. Manaʻo
He mea koʻikoʻi ka ʻōnaehana backlight i loko o ke ʻano kīwī LED, e hoʻopilikia pololei ana i ka maikaʻi o ke kiʻi. Mai ka ʻenehana Edge-Lit maʻalahi a hiki i nā ʻōnaehana paʻakikī e like me Full-Array me Local Dimming, a me nā hana hou loa e like me Quantum Dots, MicroLED, a me MiniLED, ua hoʻolālā ʻia kēlā me kēia holomua e hoʻomaikaʻi i ka maikaʻi o ke kukui a me ka hōʻike. Aia ke koho maikaʻi loa i nā pono a me ka waihona kālā o kēlā me kēia mea kūʻai. ʻO ka hoʻomaopopo ʻana i ke ʻano o ka hana ʻana o nā backlight a me nā ʻano o nā backlight e hiki ke kōkua iā ʻoe e koho i kahi kīwī LED e kūpono i kāu mau makemake a me nā pono o ka ʻike.
