Pinda munyika yeLED inoratidza, uko pixel yega yega inouya kuhupenyu kuburikidza nesimba re LED IC chips. Fungidzira mitsara yekuongorora madhiraivha uye makoramu vatyairi vachishanda pamwechete zvisina musono kugadzira zvinokatyamadza zvinoonekwa zvinokwezva vateereri vari pedyo nekure.
Kubva pakukurazvikwangwani zvekunzekumashopu anokwezva maziso uye masikirini emukati anoyevedza, mutyairi we LED IC machipisi ndiwo magamba asina kucheneswa kuseri kwezviitiko. Ndiwo simba rekutyaira rinoita kuti pixel yega yega inopenya zvakajeka, ingave iri-ruvara rumwe, ruviri-ruvara, kana ruzere-ruvara kuratidza.
Asi machipisi aya anoita sei chaizvo?
Chii chinonzi LED IC Chip?
Munyika yakazara-ruvaraLED inoratidza, basa re LED IC chip rakapfava asi rakakosha: kugamuchira data, kuburitsa masaini chaiwo ePWM, uye kudzora kuyerera kwazvino kuvhenekera LED imwe neimwe nemazvo. Musanganiswa unopindirana wetekinoroji, kuronga kuyera kwakaringana kwekupenya uye mitengo yekuzorodza kuunza mifananidzo kuhupenyu.
Uye zvakare kune peripheral ICs-magamba asina kuimbwa anowedzera kudzika uye chiyero kune chiratidziro. Kubva kuI ICs kuenda kuMOS switch, ndiwo akavanzika emukati anosimudza ruzivo rwekuona kusvika kumatanho matsva.
Haasi ese ma LED IC machipi anogadzirwa akaenzana. Mamwe akagadzirirwa kushandiswa zvakajairika, nepo mamwe akagadziridzwa zvakanaka kune chaiwo maapplication. Iyo inzvimbo yezvisingaperi zvinogoneka, uko hunyanzvi uye hunyanzvi zvinosangana kugadzira zviratidziro zvinokwezva uye zvinoshamisa.
Zvino, pinda munyika yeakakosha machipisi-yakasarudzika-yakagadzirwa zvinoshamisa inovhura iyo yakazara kugona kweiyo LED kuratidza skrini. Heino scoop: tekinoroji yeLED inoshanda nenzira yayo yakasarudzika. Kusiyana nemidziyo yechinyakare, maLED anovimba nekuyerera kwazvino, kwete kushanduka kwemagetsi.
Apa ndipo panopenya machipisi akakosha. Chinangwa chavo? Kupa chitubu chenguva dzose. Nei izvozvo zvichikosha? A stable current zvinoreva kugadzikanaLEDs, uye maLED akatsiga anoreva zviono zvisina mhosva zvinoshungurudza uye zvinokatyamadza.
Aya ma LED IC machipi ari kure neakajairwa. Vamwe vanouya nemamwe maficha akarongedzerwa kune chaiwo maindasitiri, sekuona LED kukanganisa kukanganisa, kutonga kwazvino, uye kunyangwe kururamisa kwazvino, kuwedzera imwe dhizaini yekurongeka.
Nhoroondo ye LED IC Chip
Tora rwendo kudzokera kune ane simba 1990s, apo ma LED ekuratidzira zviratidziro akange achangotanga kuwana simba. Panguva iyoyo, zvese zvaive nezve imwe chete uye mbiri-mavara-mavara, aine anogara ari voltage drive ICs pahelm.
Zvino, muna 1997, shanduko huru yakaitika apo China yakaunza iyo 9701-yakagadziridza yakakosha dhiraivha uye kutonga chip ye.Chiratidziro che LEDskrini. Nekusvetuka kunoshamisa kubva pagumi nematanhatu gireyi kusvika kune inokatyamadza 8192, iyi chip yakashandura kujeka kwevhidhiyo, ichishandura "zvaunoona ndizvo zvaunowana" kuita chokwadi chinobatika.
Sezvo tekinoroji ye LED yakakwira, ndizvo zvakaitawo vatyairi vaiifambisa. Constant yazvino dhiraivha yakakurumidza kuve chiyero che-yakazara-ruvara LED kuratidza, kuenderana zvakakwana neakasarudzika maitiro e LEDs. Nekuwedzera kuri kuda, kusanganisa kwakawedzera, uye 16-chiteshi madhiraivha munguva pfupi yapfuura akapfuura avo 8-chanera akafanotangira.
Nekukurumidza kusvika nhasi, uko hutsva hunoramba huchityora miganhu. Kugadzirisa matambudziko ePCB wiring mune madiki pixel LED anoratidza, mutyairi IC vagadziri vari kusundira miganho neyakasanganiswa 48-chiteshi LED inogara iripo mutyairi machipisi. Icho chiratidziro chenyika inogara ichishanduka ye LED tekinoroji, uko chete chinomanikidza fungidziro yedu.
LED IC Chip Performance Indicators
Ngatisveturei mukati memoyo we LED kuratidza skrini, uko makiyi ekuita zviratidzo senge refresh rate, grayscale, uye mufananidzo kuratidza kunotora pakati. Fungidzira izvi: musanganiswa unopindirana wekuenderana kwazvino, kutaurirana nekukurumidza, uye nekukurumidza nguva dzose yekupindura ikozvino-zvese zvichishanda pamwe chete kugadzira zvinokatyamadza zvinoonekwa zvinokwezva vaoni.
Munguva yakapfuura, kuwana kuwirirana kwakakwana pakati peyero yekuzorodza, greyscale, uye chiyero chekushandisa chaive chinangwa chisinganzwisisike. Kukanganisika kwaifanira kuitwa - mwero wekuvandudza wakadzikira, zvichikonzera mitsetse mitema isingataridzike mumapfuti ekhamera inomhanya, kana greyscale yakatambura, zvichitungamira mukupenya kwemavara kusingawirirani.
Pinda zera rekubudirira kwehunyanzvi. Kutenda kune hutsva kubva kumutyairi IC vagadziri, izvo zvaimbove zvisingagoneki zvave chokwadi. Mareti ekuzorodza akakwira, greyscale isina mhosva, uye kupenya kweruvara kwakajeka zvava kugara pamwe chete, zvichigadzira nzira yezviratidziro zvinosiya vateereri vachishamisika.
Kune LED yakazara-ruvara kuratidza, mushandisi kunyaradza ndiko kwakakosha. Ndokusaka kuwana chiyero chakapfava chekupenya kwakaderera uye yakakwira greyscale yave yekupedzisira bvunzo yekutyaira IC kuita. Icho chiratidzo chekusatendeseka kwekutsvaga kwekunaka munyika inogara ichifambira mberi ye LED tekinoroji.
Zvakanakira Kushandisa LED IC Chip
Paunenge uchishandisa LED IC chip, pane akati wandei mabhenefiti aunogona kunakidzwa uye kubatsirwa nawo. Heano mamwe akakodzera kucherechedzwa:
Simba Rekuchengetedza Simba
Ngatipenye chiedza pakutsvaga kwekushandisa simba mumagetsi e LED - rwendo apo hutsva hunosangana nekugadzikana, uye watt yega yega inokosha.
Munyika ine simba rakasvibira, kuponesa simba hachisi chinangwa chete; inzira yehupenyu. Kana zvasvika kune kuratidzwa kwe LED, kuita kwekutyaira ICs kunoenderana nekugona kwavo kucheka mashandisirwo emagetsi pasina kubaira kubuda.
Saka vanozviita sei izvi? Izvo zvese nezve kubata simba rekuchengetedza kubva kumakona maviri akakosha:
Chekutanga, chinotariswa ndechekudzikisira inogara iripo inflection point voltage. Nekudzikisa magetsi echinyakare e5V kusvika pazasi 3.8V, kutyaira maICs kunovhura nzira yekuwedzera simba rekushandisa simba.
Vagadziri vari kuitora nhanho mberi neakangwara algorithm tweaks uye dhizaini dhizaini. Vamwe vakatounza anogara aripo ekutyaira ICs ane inoshamisa yakaderera kutendeuka voltage ye 0.2V chete-inosimudzira ma LED mashandisirwo mazinga neanopfuura gumi neshanu muzana uye kuderedza magetsi emagetsi neanoshamisa 16%.
Asi heino twist: kuchengetedza simba hakusi kwekucheka makona chete - ndeyechokwadi. Nekupa simba zvakaparadzana kune dzvuku, girini, uye bhuruu mwenje marambi, kutyaira ICs inova nechokwadi chekuti voltage uye zvazvino zvinogoverwa nekuvhiya chaiko. Zvakaguma nei? Yakaderedzwa mashandisirwo emagetsi, kuderedza kupisa chizvarwa, uye ramangwana rakajeka rezviratidziro zve LED.
Kutsvaga kushandiswa kwesimba harisi rwendo chete - ibhindauko. Uye nekubudirira kwega kwega, isu tinoswedera kune yakasvibira, inogoneka mangwana.
Excellent Integration
Fungidzira uchipinda munyika yezviratidziro zve LED, uko pixel yega yega inorongedza punch uye chinhu chimwe nechimwe chine basa. Sezvo pixel spacing inodzikira nekukurumidza, huwandu hwemidziyo yekurongedza pane imwe unit nzvimbo inokwira, ichigadzira dizzy density yezvikamu pane yekutyaira pamusoro pema LED modules.
Tora iyo P1.9diki-pixel LEDsemuenzaniso. Iine gumi neshanu scans uye 160 × 90 module, inoda yakakura 180 inogara iripo dhiraivha ICs, 45 mutsara machubhu, uye maviri 138s. Ndiyo giya rakawanda rakarongedzwa munzvimbo yakaoma, kushandura PCB wiring kuita mutambo wepamusoro-soro weTetris.
Nekuoma kukuru kunouya njodzi huru. Zvikamu zvakazara zvinoperetera dambudziko, kubva kune asina kusimba welds kusvika pakudzikira module kuvimbika-yikes! Pinda magamba eawa: yakakwira-yekubatanidza mutyairi ICs. NemaIC mashoma anodiwa uye yakakura PCB wiring nzvimbo, machipi aya ari kusangana nekukura kuri kudiwa kweakanyanya kushanda, akavimbika madhizaini.
Nhasi, inotungamira LED IC chip vatengesi vari kupindura kufona, vachiburitsa 48-channel LED inogara iripo mutyairi machipisi anorongedza punch yakakomba. Nekubatanidza masekete ekutenderera akananga mumutyairi IC wafer, vanokwenenzvera PCB dhizaini uye kunzvenga misoro inokonzerwa nekusawirirana kweinjiniya.
Mhedziso
Munyika yezviratidziro zve LED, uko hutsva hunosangana nefungidziro, iyo yakazvininipisa ye LED IC chip inomira segamba risati raitwa. Aya machipi anoronga symphony yemapikseli, kuve nechokwadi chekuti ruvara rwese, ruzivo rwese, runopenya nekupenya kwakajeka. Ingave mabhodhi ekunze marefu kana masikirini emukati anotsvedza, machipi emutyairi weLED anoumba musana wezviitiko zvinoonekwa zvinokwezva vateereri pasi rese.
Saka, chii chinosiyanisa machipisi aya? Izvo zvakagadzirirwa kuchinjika uye kushanduka nenguva. Kubva pamazuva ekutanga ekuratidzira kumwechete uye mbiri-mavara kusvika kune tekinoroji yepamberi yatinayo nhasi, ma LED IC machipi aramba ari pamucheto wekugadzira. Ivo vakashandura nzira yatinoona nayo zvinoonekwa, tichiunza nguva yekuti pixel yega yega inotaura nyaya uye kuratidza kwese kunogadzira inonyudza, ine simba chiitiko.
Nguva yekutumira: Zvita-21-2024