Nunin lantarki na LED yana da pixels masu kyau, komai dare ko rana, rana ko ruwan sama, nunin LED zai iya barin masu sauraro su ga abubuwan da ke ciki, don biyan bukatun mutane na tsarin nuni.
Fasahar siyan hoto
Babban ka'idar nunin lantarki ta LED shine canza siginar dijital zuwa siginar hoto da gabatar da su ta tsarin haske.Hanyar gargajiya ita ce yin amfani da katin ɗaukar bidiyo hade da katin VGA don cimma aikin nuni.Babban aikin katin sayan bidiyo shine ɗaukar hotunan bidiyo, da samun adiresoshin mitar layi, mitar filin da maki pixel ta VGA, da samun sigina na dijital musamman ta hanyar kwafin tebur ɗin duba launi.Gabaɗaya, ana iya amfani da software don kwafi ko satar kayan masarufi, idan aka kwatanta da satar kayan masarufi.Koyaya, hanyar gargajiya tana da matsalar daidaitawa tare da VGA, wanda ke haifar da gefuna mara kyau, rashin ingancin hoto da sauransu, kuma a ƙarshe yana lalata ingancin hoton lantarki.
Dangane da wannan, masana'antun masana'antu sun haɓaka katin bidiyo mai sadaukarwa JMC-LED, ƙa'idar katin ta dogara ne akan bas ɗin PCI ta amfani da 64-bit graphics totur don haɓaka ayyukan VGA da bidiyo zuwa ɗayan, kuma don cimma bayanan bidiyo da bayanan VGA zuwa samar da wani superposition sakamako, baya karfinsu matsalolin da aka yadda ya kamata warware.Abu na biyu, samun ƙuduri yana ɗaukar yanayin cikakken allo don tabbatar da cikakkiyar haɓaka hoton Bidiyo, ɓangaren gefen ba ya da ban mamaki, kuma hoton yana iya ƙima da ƙima kuma an motsa shi don saduwa da buƙatun sake kunnawa daban-daban.A ƙarshe, ana iya raba launuka uku na ja, kore da shuɗi yadda ya kamata don biyan buƙatun allon nuni na launi na gaskiya.
2. Haihuwar launi na ainihin hoto
Ka'idar nunin cikakken launi na LED yana kama da na talabijin dangane da aikin gani.Ta hanyar tasiri mai tasiri na ja, kore da launin shuɗi, za'a iya dawo da launuka daban-daban na hoton da sake sakewa.Tsaftar launuka uku ja, kore da shuɗi za su shafi haifuwar launin hoton kai tsaye.Ya kamata a lura da cewa haifuwa na hoton ba haɗin kai ba ne na ja, kore da launin shuɗi, amma ana buƙatar wani wuri.
Na farko, ƙimar ƙarfin haske na ja, kore da shuɗi ya kamata ya kasance kusa da 3: 6: 1;Abu na biyu, idan aka kwatanta da sauran launuka guda biyu, mutane suna da takamaiman hankali ga ja a hangen nesa, don haka ya zama dole a rarraba ja daidai a cikin sararin nuni.Na uku, saboda hangen nesa na mutane yana mayar da martani ga lanƙwasa mara tushe na ƙarfin hasken ja, kore da shuɗi, ya zama dole a gyara hasken da ke fitowa daga cikin TV ɗin ta farin haske mai haske daban-daban.Na hudu, mutane daban-daban suna da damar ƙudurin launi daban-daban a ƙarƙashin yanayi daban-daban, don haka wajibi ne a gano maƙasudin haƙiƙa na haifuwa launi, waɗanda gabaɗaya kamar haka:
(1) Matsalolin ja, kore da shuɗi sun kasance 660nm, 525nm da 470nm;
(2) Yin amfani da naúrar bututu 4 tare da farin haske ya fi kyau (fiye da 4 tubes kuma, yawanci ya dogara da ƙarfin haske);
(3) Matsayin launin toka na launuka na farko guda uku shine 256;
(4) Dole ne a karɓi gyaran da ba na kan layi ba don aiwatar da pixels na LED.
Za a iya tabbatar da tsarin sarrafa hasken ja, kore da shuɗi ta hanyar tsarin hardware ko software na tsarin sake kunnawa daidai.
3. na musamman da'ira drive
Akwai hanyoyi da yawa don rarraba bututun pixel na yanzu: (1) direban duba;(2) Digiri na DC;(3) Tushen tuƙi na yau da kullun.Dangane da buƙatun daban-daban na allon, hanyar dubawa ta bambanta.Don allon toshewar lattice na cikin gida, yanayin dubawa ana amfani da shi musamman.Don allon bututun pixel na waje, don tabbatar da kwanciyar hankali da tsayuwar hotonsa, dole ne a ɗauki yanayin tuƙi na DC don ƙara yawan halin yanzu zuwa na'urar dubawa.
Early LED yafi amfani da ƙananan siginar sigina da yanayin juyawa, wannan yanayin yana da haɗin gwiwa da yawa, farashin samar da kayayyaki, ƙarancin aminci da sauran gazawa, waɗannan gazawar sun iyakance haɓakar nunin lantarki na LED a cikin wani ɗan lokaci.Domin warware abubuwan da ke sama na nunin lantarki na LED, wani kamfani a Amurka ya haɓaka ƙayyadaddun ƙayyadaddun haɗaɗɗun da'ira, ko ASIC, wanda zai iya fahimtar juzu'i-daidaitacce da motsi na yanzu zuwa ɗaya, haɗin haɗin yana da halaye masu zuwa. : da daidaitaccen fitarwa ikon tuki, tuki halin yanzu aji har zuwa 200MA, LED a kan wannan tushen za a iya kore nan da nan;Large halin yanzu da ƙarfin lantarki haƙuri, fadi da kewayon, gabaɗaya na iya zama tsakanin 5-15V m zabi;Matsakaicin fitarwa na serial-parallel na yanzu ya fi girma, shigarwa da fitarwa na yanzu sun fi 4MA;Gudun sarrafa bayanai da sauri, dacewa da aikin direban nunin launi mai launin toka mai yawa na yanzu.
4. Fasahar juyawa D/T mai haske
Nunin lantarki na LED ya ƙunshi pixels masu zaman kansu da yawa ta tsari da haɗuwa.Dangane da fasalin raba pixels da juna, nunin lantarki na LED zai iya faɗaɗa yanayin tuki mai haske ta hanyar sigina na dijital.Lokacin da pixel ya haskaka, yanayin haskensa yana sarrafa shi ta hanyar mai sarrafawa, kuma ana sarrafa shi da kansa.Lokacin da ake buƙatar gabatar da bidiyon cikin launi, yana nufin cewa haske da launi na kowane pixel suna buƙatar sarrafa su yadda ya kamata, kuma ana buƙatar aikin dubawa tare a cikin ƙayyadadden lokaci.
Wasu manyan nunin lantarki na LED sun ƙunshi dubun-dubatar pixels, waɗanda ke ƙara rikiɗewa sosai a cikin tsarin sarrafa launi, don haka ana gabatar da buƙatu masu girma don watsa bayanai.Ba gaskiya ba ne don saita D / A ga kowane pixel a cikin ainihin tsarin sarrafawa, don haka ya zama dole a nemo makircin da zai iya sarrafa tsarin pixel mai rikitarwa.
Ta hanyar nazarin ƙa'idar hangen nesa, an gano cewa matsakaicin haske na pixel ya dogara ne akan ƙimarsa mai haske.Idan an daidaita ma'auni mai haske da kyau don wannan batu, ana iya samun nasarar sarrafa haske.Yin amfani da wannan ka'idar zuwa nunin lantarki na LED yana nufin canza siginar dijital zuwa siginar lokaci, wato, jujjuya tsakanin D/A.
5. Sake gina bayanai da fasaha na ajiya
A halin yanzu, akwai manyan hanyoyi guda biyu na tsara ƙungiyoyin ƙwaƙwalwar ajiya.Ɗayan ita ce hanyar haɗin pixel, wato, duk abubuwan pixel da ke kan hoton ana adana su a cikin jiki guda ɗaya;ɗayan kuma shine hanyar jirgin saman bit, wato, duk abubuwan pixel da ke kan hoton ana adana su a cikin nau'ikan ƙwaƙwalwar ajiya daban-daban.Tasirin kai tsaye na yawan amfani da jikin ma'ajiya shine fahimtar nau'ikan karatun bayanan pixel a lokaci guda.Daga cikin sifofin ajiya guda biyu da ke sama, hanyar jirgin saman bit yana da ƙarin fa'idodi, wanda shine mafi kyawun haɓaka tasirin nuni na allon LED.Ta hanyar da'irar sake gina bayanai don samun nasarar juyar da bayanan RGB, nauyin guda ɗaya tare da pixels daban-daban ana haɗa su ta zahiri kuma an sanya su a cikin tsarin ajiya kusa.
6. fasahar ISP a cikin zane-zane na dabaru
Da'irar sarrafa nunin lantarki na LED na al'ada an tsara shi ta hanyar da'irar dijital ta al'ada, wacce gabaɗaya ke sarrafa ta ta hanyar haɗin da'irar dijital.A cikin fasaha na al'ada, bayan an kammala sashin ƙirar kewayawa, an fara yin allon kewayawa, kuma an shigar da abubuwan da suka dace kuma an daidaita tasirin.Lokacin da dabarar hukumar da'irar ba zata iya biyan ainihin buƙatu ba, tana buƙatar sake yin ta har sai ta cika tasirin amfani.Ana iya ganin cewa hanyar ƙirar al'ada ba kawai tana da ƙayyadaddun ƙayyadaddun la'akari ba, amma har ma yana da tsayin daka na ƙira, wanda ke rinjayar ingantaccen ci gaba na matakai daban-daban.Lokacin da kayan aikin suka gaza, kulawa yana da wahala kuma farashi yana da yawa.
A kan wannan tushen, tsarin fasahar shirye-shirye (ISP) ya bayyana, masu amfani za su iya samun aikin na akai-akai gyaggyarawa nasu zane manufofin da tsarin ko da'irar da sauran aka gyara, gane da aiwatar da zanen 'hardware shirin zuwa software shirin, dijital tsarin a kan. tushen tsarin fasahar shirye-shirye daukar sabon salo.Tare da gabatarwar tsarin fasaha na shirye-shirye, ba wai kawai tsarin zagayowar ƙira ya rage ba, amma har ma ana fadada amfani da abubuwan da aka gyara, ana sauƙaƙe aikin kiyaye filin da ayyukan kayan aiki.Wani muhimmin fasali na fasaha mai tsara tsarin shine cewa baya buƙatar la'akari ko na'urar da aka zaɓa tana da wani tasiri yayin amfani da software na tsarin don shigar da dabaru.A lokacin shigarwa, ana iya zaɓar abubuwan haɗin gwiwa yadda aka so, har ma za'a iya zaɓar kayan aikin kama-da-wane.Bayan an gama shigarwa, ana iya aiwatar da daidaitawa.
Lokacin aikawa: Dec-21-2022
