He aha te rerekētanga i waenga i te pūwhakaata LCD me te pūwhakaata DLP?

He aha te rerekētanga i waenganui i tētahiPūwhakaata LCDme tePūwhakaata DLPHe aha te kaupapa matua o te whakaata LCD me te whakaata DLP?

 

LCD (whakarāpopototanga mō te Whakaaturanga Tioata Wai) he whakaaturanga tioata wai.

Tuatahi, he aha te LCD? E mōhio ana tātou e toru ngā āhua o te matū: te āhua totoka, te āhua wai, me te āhua hau. Ahakoa kāore he āhua ōrite o te whakatakotoranga o te pokapū papatipu o ngā ngota wai, ki te mea he roa (he papatahi rānei) ēnei ngota, tera pea he ōrite te whakatakotoranga ngota. Nō reira, ka taea e tātou te wehewehe i te āhua wai ki ngā momo maha. Ko ngā wai he āhua koretake te whakatakotoranga ngota ka kiia he wai, ko ngā wai he ngota ahunga ka kiia he "kiriata wai", e kiia ana hoki ko "kiriata wai". Kāore he mea hou ki a tātou ngā hua kiriata wai. Ko ngā waea pūkoro me ngā tātaitai e kitea pinepinetia ana e tātou he hua kiriata wai katoa. I kitea te kiriata wai e te tohunga tipu Austrian a Reinitzer i te tau 1888. He matū waro me te whakatakotoranga ngota ngota auau i waenga i te totoka me te wai. Ko te kaupapa o te whakaaturanga kiriata wai ko te whakaatu a te kiriata wai i ngā āhuatanga mārama rerekē i raro i te mahi a ngā ngaohiko rerekē. I raro i te mahi a ngā iahiko hiko me ngā mara hiko rerekē, ka whakaritea ngā ngota karaihe wai kia huri noa i te 90 nekehanga, ka hua ake he rerekētanga o te whakawhiti mārama, kia puta ai te rerekētanga i waenga i te mārama me te pōuri i raro i te mana ON/OFF, ā, ka taea te whakahaere i ia pika kia rite ki tēnei mātāpono hei hanga i te ahua e hiahiatia ana.

Ko te pūwhakaata karaihe wai LCD he hua o te whakakotahitanga o te hangarau whakaatu karaihe wai me te hangarau pūwhakaata. Ka whakamahia e ia te pānga hiko-whatu o te karaihe wai hei whakahaere i te tuku me te whakaata o te wae karaihe wai mā roto i te ara iahiko, kia puta ai he whakaahua me ngā taumata hina rerekē. Ko te mahi matua o te pūwhakaata LCD ko te taputapu whakaahua he panera karaihe wai..

 

Kaupapa

He tino māmā te kaupapa o te LCD kotahi, arā, mā te whakamahi i tētahi pūtake mārama kaha-teitei hei whakamārama i te papa LCD mā roto i te karāhe whakapūmau. Nā te mea ka tukuna e te papa LCD te mārama, ka whakamāramahia te pikitia, ā, ka hangaia te ahua ki runga i te mata mā roto i te whakaata arotahi o mua me te karāhe arotahi.

Ka wehewehea e te 3LCD te mārama e tukuna ana e te pūrama kia toru ngā tae, arā, R (whero), G (kakariki), me B (kikorangi), ā, ka tukuna kia haere mā roto i ō rātou panera karaihe wai hei hoatu i ngā āhua me ngā mahi. Nā te mea ka tukuna tonutia ēnei tae matua e toru, ka taea te whakamahi pai i te mārama, ka hua ake he whakaahua kanapa, mārama hoki. Kei te pūwhakaata 3LCD ngā āhuatanga o ngā whakaahua kanapa, tūturu, ngawari hoki.

Painga:

① Mō te tae o te mata, ko ngā pūwhakaata LCD matua o nāianei he mīhini maramara-toru katoa, e whakamahi ana i ngā panera LCD motuhake mō ngā tae matua e toru o te whero, te kakariki, me te kikorangi. Mā tēnei ka taea te whakarite takitahi i te kanapa me te rerekētanga o ia hongere tae, ā, he tino pai te whakaaturanga, ka hua ake he tae tino pono. (Ka taea e ngā pūwhakaata DLP o te reanga kotahi te whakamahi i te kotahi wāhanga o te DLP, e whakatauhia ana e ngā āhuatanga ā-tinana o te wira tae me te pāmahana tae o te rama. Kāore he mea hei whakarite, ā, ko te tae tika anake ka taea te whiwhi. Engari me te taua, kei te ngaro tonu ngā oro kanapa i ngā taha o te wāhi whakaahua ki te whakataurite ki ngā pūwhakaata LCD utu nui ake.)

② Ko te tuarua o ngā painga o te LCD ko tōna kaha ki te mārama. He nui ake te putanga mārama ANSI lumen o ngā pūwhakaata LCD i ngā pūwhakaata DLP me ngā rama o te wattage ōrite.

Ngā ngoikoretanga:

①He ngoikore rawa te taumata pango, ā, kāore i te tino teitei te rerekētanga. He ahua puehu tonu ngā pango o ngā pūwhakaata LCD, ā, he pōuri, he koretake hoki ngā atarangi.

②Ka kitea te hanganga pika i te pikitia i hangaia e te pūwhakaata LCD, ā, kāore i te pai te āhua me te ahua. (Te āhua nei kei te mātaki te hunga mātakitaki i te pikitia mā te pane)

Pūwhakaata DLP

Ko te DLP te whakarāpopototanga o "Digital Light Processing", arā, te tukatuka mārama mamati. Ka tukatukahia tuatahitia e tēnei hangarau te tohu whakaahua mā te mamati, kātahi ka tukuna te mārama. E hangai ana ki te wāhanga whakaata iti mamati i whakawhanakehia e TI (Texas Instruments) - DMD (Digital Micromirror Device) hei whakaoti i te hangarau o te whakaaturanga mōhiohio mamati tirohanga. Ko te taputapu whakaata iti mamati DMD he wāhanga haurua-ā-ira motuhake i hangaia me te whakawhanakehia e Texas Instruments. He maha ngā whakaata tapawhā iti kei roto i te maramara DMD. Ko ia whakaata iti i roto i ēnei whakaata e tohu ana i tētahi pika. Ko te horahanga o te pika he 16μm×16, ā, kua whakaritea pai ngā karāhe ki ngā rarangi me ngā pou, ā, ka taea te whakawhiti me te huri i roto i ngā āhua e rua o te whakakā, te whakaweto rānei e te mana mahara e rite ana, kia taea ai te whakahaere i te whakaata o te mārama. Ko te mātāpono o te DLP he tuku i te pūtake mārama e tukuna ana e te mārama mā roto i tētahi karāhe whakapūmau hei whakakotahi i te mārama, kātahi ka tukuna he wira tae (Wira Tae) hei wehewehe i te mārama kia toru ngā tae RGB (neke atu rānei ngā tae), kātahi ka whakaatahia te tae ki runga i te DMD e te karāhe, ā, hei whakamutunga ka whakaatahia ki roto i tētahi whakaahua mā roto i tētahi karāhe whakaata.

Kaupapa

E ai ki te maha o ngā whakaata matihiko DMD kei roto i te pūwhakaata DLP, ka wehea e te tangata te pūwhakaata ki te pūwhakaata DLP maramara-kotahi, te pūwhakaata DLP maramara-rua me te pūwhakaata DLP maramara-toru.

I roto i te pūnaha whakaata DMD maramara-kotahi, me whai wira tae hei whakaputa i tētahi whakaahua whakaata tae-katoa. Kei roto i te wira tae he pūnaha tātari whero, kakariki, me te kikorangi, e hurihuri ana i te auau o te 60Hz. I roto i tēnei whirihoranga, ka mahi te DLP i roto i te aratau tae raupapa. Ka hurihia te tohu whakauru ki ngā raraunga RGB, ā, ka tuhia ngā raraunga ki roto i te SRAM o te DMD i roto i te raupapa. Ka arotahi te pūtake mārama mā ki te wira tae mā te arotahi arotahi, ā, ka whakaahuahia te mārama e puta ana i roto i te wira tae ki te mata o te DMD. Ina hurihuri te wira tae, ka koperehia te mārama whero, kakariki, me te kikorangi i runga i te DMD. He raupapa te wira tae me te whakaahua ataata, nō reira, ina pā te mārama whero ki te DMD, ka "whakatika" te arotahi ki te tūranga me te kaha e tika ana kia whakaatuhia e te mōhiohio whero, ā, pērā anō hoki mō te mārama kakariki me te kikorangi me te tohu ataata. Nā te pumau o te pānga tirohanga, ka arotahi te pūnaha tirohanga tangata i ngā mōhiohio whero, kakariki, me te kikorangi, ā, ka kite i tētahi whakaahua tae-katoa. Mā te karu whakaata, ka taea te whakaata i te ahua i hangaia ki te mata DMD ki runga i tētahi mata nui.

Kotahi anake te maramara DMD kei roto i tētahi pūwhakaata DLP maramara-kotahi. He tata te whakaritenga o tēnei maramara ki ngā karāhe whakaata tapawhā iti maha i runga i te pūnga hiko o tētahi maramara silicon. Ko ia karāhe whakaata i konei e rite ana ki tētahi pika o te ahua i hangaia, nō reira, ki te mea he nui ake ngā karāhe whakaata kei roto i tētahi maramara whakaata matihiko DMD, ka teitei ake te taumira ā-tinana ka taea e te pūwhakaata DLP e rite ana ki te maramara DMD.

Painga:

Ko te hangarau pūwhakaata DLP he hangarau pūwhakaata whakaata. Mā te whakamahi i ngā taputapu DMD whakaata, he pai ngā pūwhakaata DLP ki te whakaata, he tino pai te rerekētanga me te ōritetanga, he teitei te whakamāramatanga o te ahua, he ōrite te pikitia, he koi te tae, ā, ka ngaro te haruru o te ahua, he pumau te kounga o te pikitia, ka taea te whakaputa tonu i ngā whakaahua matihiko tika, ā, ka roa tonu. Nā te mea he maramara DMD ngā pūwhakaata DLP noa, ko te painga tino kitea ko te kiato, ā, ka taea te hanga kia tino kiato te pūwhakaata. Ko tētahi atu painga o ngā pūwhakaata DLP ko ngā whakaahua maeneene me te rerekētanga teitei. Ki te nui te rerekētanga, he kaha te pānga tirohanga o te pikitia, kāore he āhua o te hanganga pika, ā, he maori te ahua.

Ngā ngoikoretanga:

Ko te mea nui ko ngā kanohi āniwaniwa, nā te mea ka tukuna e ngā pūwhakaata DLP ngā tae tuatahi rerekē ki runga i te mata whakaata mā te wira tae, ā, ka kite te hunga he kanohi tairongo i tētahi āniwaniwa rite ki te tae. Tuarua, he nui ake te whakawhirinaki ki te kounga o te DMD, te kaha ki te whakarite tae me te tere hurihuri o te wira tae.