Te Mahi a te Pūnaha Whakamuri i runga i ngā Pouaka Whakaata LED
Pengantar
Kua noho ko ngā pouaka whakaata LED (Light Emitting Diode) te whiringa pai rawa atu mā te tini o ngā kaihoko, e tuku ana i te huinga o te kounga pikitia teitei, te hoahoa maeneene, me te whakapaunga hiko pai ake i ngā hangarau o mua pērā i te CRT (Cathode Ray Tube) me ngā pouaka whakaata plasma. Ko tētahi o ngā wāhanga matua e āhei ai te kounga whakaaturanga pai rawa atu i runga i ngā pouaka whakaata LED ko te pūnaha whakamārama. Ka matapakihia e tēnei tuhinga te mahi a te pūnaha whakamārama i runga i ngā pouaka whakaata LED, mai i te ariā taketake ki te hangarau hou e whakamahia ana.
1. Te Ariā Taketake o te Mārama Whakamuri i runga i ngā Pouaka Whakaata LED
Ko te tikanga, he mata pouaka whakaata LED he papa LCD (Waikawa Whakaaturanga), kāore e taea te whakaputa mārama i a ia anō. Me whai puna mārama anō ngā papa LCD hei whakaatu i tētahi ahua mārama, kanapa hoki. Koinei te wāhi e whai wāhi nui ai te rama muri, te rama papamuri rānei. Ko te rama muri he pūnaha rama kei muri, kei te taha rānei o te papa whakaatu, e whakamārama ana i te papa LCD mai i muri, kia kitea ai te ahua e te kaimātakitaki.
2. Ngā momo rama whakamuri
He maha ngā momo pūnaha whakamārama rama e whakamahia ana i roto i ngā pouaka whakaata LED, ā, he rerekē ngā painga me ngā ngoikoretanga o ia momo.
a. LED Tapa-Rama
Ko te Edge-Lit he momo rama whakamārama e whakanohoia ai ngā rama LED ki ngā taha, ki ngā taha rānei o te mata, ā, ka tukuna te mārama mā roto i tētahi aratohu mārama i muri i te mata hei whakamārama i te mata LCD katoa.
Putanga:
– He hoahoa angiangi ake
– Ngā utu whakaputa iti iho
Te korenga:
– Kāore i te ōrite te māramatanga; tera pea ētahi wāhanga o te mata e mārama ake ana, e pōuri ake rānei i ētahi atu.
– He iti ake ngā taumata rerekētanga ki te whakataurite ki ngā pūnaha Full-Array.
b. Te rama rama katoa
Ka whakaratohia e Full-Array ngā rama LED puta noa i te wāhanga o muri o te papa LCD, e āhei ai te māramatanga ōrite me te āheinga ki te whirihora takitahi i ngā rohe rama.
Putanga:
– He pai ake te ōritetanga o te rama
– Ngā taumata rerekētanga teitei ake mā te hangarau Local Dimming
Te korenga:
– He hoahoa matotoru ake
– Te teitei ake o ngā utu whakaputa
c. Te Whakaiti i te Āhua o te Rohe
Ko te Whakaiti i te Ataahua o te Rohe he hangarau e whakamahia whānuitia ana me ngā pūnaha Full-Array. Mā tēnei hangarau ka taea te whakaweto, te whakaiti rānei i te kaha o ngā wāhi motuhake o te papamuri, i runga i te ihirangi e whakaaturia ana i runga i te mata. Hei tauira, ko ngā wāhi o te mata e whakaatu ana i ngā tae mangu, pōuri rānei, ka taea te whakaiti, te whakaweto rānei i te kaha o te mārama hei whakarei ake i te rerekētanga me te hohonutanga o te mangu.
3. Te Mahi a te Pūnaha Whakamuri
Kia mārama tātou ki ngā momo rama whakamārama, me tūhuratia te mahi a te pūnaha rama whakamārama.
a. LED Tapa-Rama
I roto i tētahi pūnaha LED Edge-Lit, ka whakatakotoria ngā LED ki ngā taha o te mata, ki runga, ki raro, ki ngā taha rānei. Kātahi ka arahina te mārama mai i ēnei LED mā roto i tētahi raupapa rauemi whakaata me ngā pereti ārahi mārama hei tohatoha i te mārama puta noa i te mata katoa. Ahakoa he māmā noa iho, ko te wero nui o tēnei pūnaha ko te whakarite kia ōrite te tohatoha o te mārama me te kore he pānga 'toto', 'āwhio rānei' ki ētahi wāhi o te mata.
b. Te rama rama katoa
I roto i te pūnaha rama LED Full-Array, ka whakanohoia ngā rama LED ki te rohe katoa i muri i te papa LCD. Kei tēnei pūnaha he diffuser hei hora i te mārama LED kia ōrite puta noa i te mata. Nā te mea he ōrite te hora o ngā rama LED, he pai ake te hora o te mārama i te Edge-Lit. Hei tāpiri, ka tautokohia e tēnei pūnaha te hangarau Local Dimming, e āhei ai te whakahaere tika ake i te māramatanga i runga i te ihirangi e whakaaturia ana, ka hua ake he kounga pikitia pai ake.
4. Hangarau Hou i roto i te Pūnaha Whakamuri
I tua atu i ngā whanaketanga hangarau, kua tino whanakehia hoki ngā pūnaha whakamārama rama i runga i ngā pouaka whakaata LED. Ko ētahi o ngā hangarau whakamārama rama hou e whakamahia ana i roto i ngā pouaka whakaata LED hou ko:
a. Ngā Ira Kuantum
Ko te hangarau Quantum Dot e whakamahi ana i ngā nanocrystals semiconductor e whakaputa ana i te mārama ina pāngia e te pūngao. Ka taea e ngā Quantum Dots te whakapai ake i te kounga o te ahua mā te tuku i te whānuitanga tae whānui ake, me te tika ake. Ko ngā pūnaha rama whakamuri e whakamahi ana i ngā Quantum Dots ka whakarōpūtia hei Full-Array, ā, kua hangaia kia mahi tahi me ngā LED kikorangi hei whakaputa i ngā tae tino pono ake.
b. MicroLED
He hangarau whakamārama ā muri ake nei a MicroLED e whakamahi ana i ngā rama LED tino iti mō ia pika iti i runga i te mata. He rerekē ki ngā rama LED tuku iho, ka taea e MicroLED te whakaputa tae me te mārama me te kore e hiahiatia he papa LCD. Ahakoa kei te tīmatanga tonu o te whanaketanga me te utu nui, ka oati tēnei hangarau i te kounga whakaahua tino pai me ngā tae tika ake, te rerekētanga teitei, me ngā wā urupare tere.
c. MiniLED
He takahanga waenga a MiniLED i ngā LED tuku iho me ngā MicroLED. He iti ake ngā LED e whakamahia ana e tēnei hangarau i ngā LED tuku iho, kia tika ake ai te whakahaere i ngā rohe rama. Mā ngā rohe ka taea te whakahaere takitahi, ka tautoko te hangarau MiniLED i ngā taumata rerekētanga tino teitei, ā, ka whakaitihia te pānga "halo".
5. Whakamutunga
He mea nui te pūnaha rama whakamuri i roto i te pūnaha pouaka whakaata LED, e pā tika ana ki te kounga o te ahua. Mai i te hangarau Edge-Lit māmā ki ngā pūnaha uaua ake pērā i te Full-Array me te Local Dimming, me ngā auahatanga hou pērā i te Quantum Dots, MicroLED, me te MiniLED, kua hangaia ia whanaketanga hei whakapai ake i te kounga o te rama me te whakaaturanga. Ko te kōwhiringa pai rawa atu kei runga i ngā hiahia me te tahua a ia kaihoko. Mā te mārama ki te mahi a ngā rama whakamuri me ngā momo rama whakamuri ka āwhina i a koe ki te whiriwhiri i tētahi pouaka whakaata LED e rite ana ki ō manakohanga tirohanga me ō hiahia.
