He kiʻekiʻe loa ka hoʻokūkū ma waena o nā TV. ʻO kekahi o nā koi o kēia manawa ʻo ia ka hiki ke hana i nā hōʻailona kikohoʻe. Ma muli o nā kikoʻī o ko lākou kumu, loaʻa i nā TV LCD i ka mua he mau pono koʻikoʻi.
I kēia ao hou, hilinaʻi nui ke kanaka i nā "kōkua" loea - nā kaʻa, kamepiula, ʻōnaehana GPS, kelepona paʻa a me nā mea uila ʻē aʻe. LCD - ua hiki i ka ʻenehana ke hōʻoia i kona pono ma nā wahi āpau o ka hana kanaka. He paʻakikī ke noʻonoʻo i kekahi mea ʻenehana me ka ʻole o ka hōʻike LCD ʻike, kahi kūpono no ka nānā ʻana i ka hana o kekahi mea. Loaʻa ka ʻenehana LCD i nā noi hou i kēlā me kēia lā. ʻAʻole ia he mea kupanaha, ua lanakila ʻo ia i ka mākeke IT a, i ka hopena, hoʻololi i ka hana ʻana o nā televise.
ʻO nā kīwī LCD he mau mea palahalaha, ʻano hiʻohiʻona e ulu nei i ka makemake i kēlā me kēia lā.
Kumu o ka hana
Ua ʻike ʻia nā kristal "Liquid" i ka makahiki 1888 e kekahi mea ʻike hua lāʻau Austrian. Ma lalo o nā kūlana like ʻole, loaʻa iā lākou nā degere like ʻole o ka ʻike. I nā makahiki 60 o ke kenekulia i hala, ua hiki i nā ʻepekema ke hana i nā hiʻohiʻona hoʻokolohua mua o nā pale aniani wai, akā paʻa ʻole lākou e hoʻokomo i ka hana. I kēia manawa wale nō, ua loaʻa i nā mea hoʻomohala nā hopena kūpono.
I nā TV hou, hoʻohana pinepine ʻia ka ʻenehana TFT LCD - he transistor kiʻiʻoniʻoni ʻoniʻoni ʻoniʻoni. Aia i loko o ʻelua ʻāpana o ke aniani-like polarized material, kahi i uhi ʻia me ke kiʻi TFT. Loaʻa i ka kiʻiʻoniʻoni nā kristal, ehia mau kristal - nui nā pika. Hoʻoponopono ʻo Thin Film Transistors i ke kahe ʻana o kēia manawa, e hoʻololi a hoʻololi i kā lākou mau kristal, e hāʻawi ana i ka māliko/opacity.
ʻAʻole ʻālohi nā kristal iā lākou iho, no laila aia kahi kukui fluorescent ma hope o ka hōʻike. Hoʻokaʻawale ʻia ka hōʻike a me ke kukui e kahi pale keʻokeʻo e hoʻohele like i ka mālamalama.
No ka loaʻaʻana o kahi kiʻi kala, hoʻohanaʻia kahi kānana kūikawā. Hoʻohui ia i nā kala ʻulaʻula, ʻōmaʻomaʻo a me ka uliuli. Hiki ke hana ʻia kekahi kala ʻē aʻe ma ka hoʻohui ʻana iā lākou. Ma muli o ka liʻiliʻi loa o nā pika, ʻike ka mea nānā i ke kiʻi "holo pau".
Ma muli o nā hiʻohiʻona o ka ʻenehana LCD, ʻaʻole e hoʻopuka ka pale i ka radiation.
Kiʻi
ʻO ka diagonal o ka pale ma nā LCD-TV hiki i 50 iniha, a ma kekahi mau hiʻohiʻona - a ʻoi aku. A hiki i kēia manawa,ʻaʻole i hiki i nā mea hana ke hoʻopau loa i ka pilikia o ka hoʻonuiʻana i ka nui. No kēlā me kēia pixel i hoʻohui ʻia, pono ʻekolu transistors, a ma nā hiʻohiʻona ma luna o 37 iniha, pilikia ka hāʻawi ʻana i ka māmā. ʻO ka mea pōmaikaʻi, ua hiki i nā mea hana alakaʻi ke hoʻoponopono i kēia pilikia i ka nui. ʻO Sony, Samsung, Sharp, LG - ʻo ia nā hōʻailona ma lalo o ke kūʻai ʻia ʻana o nā TV LCD kiʻekiʻe me kahi diagonal nui.
ʻO ka lākiō hiʻohiʻona o kekahi mau hiʻohiʻona he 16:9, kūpono kēia ʻano no ka nānā ʻana i ka DVD a me HDTV, akā naʻe, nui nā kumu hoʻohālike e paʻa i ka 4:3 kuʻuna i kākoʻo ʻia e ka hapa nui o nā kaha TV. ʻO ka ʻokoʻa ma waena o nā hōʻailona hōʻailona a me ka TV e uku pinepine ʻia e nā algorithms like ʻole.
ʻOi aku ka māmā o ke kiʻi ma ka TV LCD ma mua o ka CRT maʻamau. Hāʻawi ia i kahi "kiʻi" maikaʻi i kēlā me kēia kukui. ʻAʻole hiki i ka lā a i ʻole ke kukui kūlohelohe ke hoʻopilikia i kāna hana kūpono.
Hiki iā ʻoe ke nānā i ka TV mai kēlā me kēia kūlana, no ka mea, ʻo ke kihi ʻike maʻamau mai 160 degere, i nā hiʻohiʻona hou loa - a hiki i 178 degere. Ma mua, ʻoi aku ka maikaʻi o ka ʻike ʻana o ka "plasma", akā naʻe, ʻaneʻane like ka hana like ʻana o nā ʻenehana ʻelua. Ma keʻano he kūlana,ʻaʻole i hoʻopilikia ikiʻia ka angle nānā e ka "palaoa" o ka pale, ka mea i kapaʻia. "dot pitch" - makemake ia e emi iho ma lalo o 0.28 mm.
ʻO kekahi o nā hiʻohiʻona koʻikoʻi o ka LCD ʻo ia ka manawa pane - ʻoi aku ka liʻiliʻi, ʻoi aku ka maikaʻi (e hōʻike ana i ka wikiwiki o ka hiki ke hoʻololi i ka ʻike o kahi pika me ka nalowale ʻole o ka maikaʻi o ke kiʻi). Ana ʻia ka manawa pane i nā milliseconds, ʻo ka waiwai maikaʻi loa ʻo 20 ms a i ʻole. He mea koʻikoʻi ka manawa pane wikiwiki i ka nānā ʻana i nā DVD a me nā HDTV ma nā pale nui, ʻoi aku hoʻi i nā hiʻohiʻona hana.
ʻAʻole like me ka plasma a me ka CRT TV, ʻaʻole "puhi" ke kiʻi ma ka LCD, no laila maikaʻi loa ia no ka hana ʻana me kahi kamepiula a i ʻole ka hoʻopili ʻana i kahi pahu hoʻonohonoho wikiō. Kiʻekiʻe loa ka maikaʻi hōʻike o ka kikokikona a me nā kiʻi.
ʻO kekahi o nā kuhi hewa maʻamau "ʻo ke kiʻekiʻe o ka hoʻonā, ʻoi aku ka nui o ke kiʻi." Aole pela mau. Ma ka hapanui o nā TV CRT maʻamau, ʻo ka hoʻonā ʻana he VGA (640X480 pixels), ʻoiai hiki i nā LCD ke loaʻa iā XGA (1024X768) a i ʻole W-XGA (1280X768). Ma mua o ke aʻo ʻana i nā helu, ʻoi aku ka maikaʻi o ka hoʻohālikelike ʻana i ka "kiʻi" ponoʻī.
Nā hiʻohiʻona ʻenehana
ʻO ka maʻamau, kūʻai ʻia nā TV LCD me kahi ʻōnaehana leo i kūkulu ʻia, tuners, etc. ʻO kahi laʻana, ʻaʻole kākoʻo nā TV o kekahi mau mea hana i nā pilina PC, hiki ke kahaha i ka mea kūʻai ʻole i ka nānā ʻole, i kekahi manawa, i mea e hana ai i kahi ʻōnaehana hale kiʻiʻoniʻoni, ʻaʻole i lako ka TV me nā mea haʻiʻōlelo.
He mea nui e kākoʻo ka TV i ka hōʻailona HDTV. ʻOi aku ka maikaʻi o ke kiʻi kikohoʻe kiʻekiʻe ma mua o ke kiʻi maʻamau. I kēia lā, hana kekahi mau kelepona a me ka uku-satellite me HDTV, i ka wā e hiki mai ana ʻo TV maʻamau e hana pū me ia.
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April 20, 2024 13:04:39 +0300 GMT
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