A cikin aikin nunin cikakken launi na LED, aikin direban IC shine karɓar bayanan nuni (daga katin karɓa ko mai sarrafa bidiyo da sauran hanyoyin bayanan) waɗanda suka dace da ka'idar, samar da PWM a ciki da canje-canjen lokaci na yanzu, kuma sabunta fitarwa da haske launin toka.da sauran hanyoyin PWM masu alaƙa don haskaka LEDs.Ƙwararren IC ɗin da ya ƙunshi direba IC, ma'ana IC da MOS sauyawa suna aiki tare akan aikin nuni na nunin LED kuma yana ƙayyade tasirin nunin da yake gabatarwa.
Ana iya raba kwakwalwan direban LED zuwa kwakwalwan kwamfuta-manufa na gaba ɗaya da kwakwalwan kwamfuta na musamman.
Abin da ake kira guntu-manufa gabaɗaya, guntu kanta ba a keɓance ta musamman don LED ba, amma wasu kwakwalwan kwamfuta tare da wasu ayyukan dabaru na allon nuni na LED (kamar jerin-2-daidaitacce rajista rajista).
Guntu ta musamman tana nufin guntu direban da aka ƙera musamman don nunin LED bisa ga halayen haske na LED.LED na'urar siffa ce ta halin yanzu, wato, a ƙarƙashin tsarin jikewa, haskensa yana canzawa tare da canjin halin yanzu, maimakon ta daidaita wutar lantarki a cikinsa.Saboda haka, daya daga cikin manyan fasalulluka na kwazo guntu ne don samar da akai halin yanzu tushen.Tushen na yau da kullun na iya tabbatar da ingantaccen tuƙi na LED kuma ya kawar da flickering na LED, wanda shine buƙatu don nunin LED don nuna hotuna masu inganci.Wasu kwakwalwan kwamfuta masu manufa na musamman kuma suna ƙara wasu ayyuka na musamman don buƙatun masana'antu daban-daban, kamar gano kuskuren LED, sarrafa riba na yanzu da gyara na yanzu.
Juyin Halitta na direba IC:
A cikin 1990s, aikace-aikacen nunin LED sun mamaye launuka ɗaya da sau biyu, kuma ana amfani da ICs direban wutar lantarki akai-akai.A cikin 1997, guntu na farko da aka keɓe na sarrafa tuƙi 9701 don nunin LED ya bayyana a cikin ƙasata, wanda ya bambanta daga matakin grayscale 16 zuwa matakin launin toka na 8192, yana fahimtar WYSIWYG don bidiyo.Daga baya, bisa la'akari da halaye masu fitar da hasken LED, direban na yanzu koyaushe ya zama zaɓi na farko don direban nunin LED mai cikakken launi, kuma direban tashoshi 16 tare da babban haɗin gwiwa ya maye gurbin direban tashoshi 8.A ƙarshen 1990s, kamfanoni irin su Toshiba a Japan, Allegro da Ti a Amurka sun ci gaba da ƙaddamar da guntun direbobin LED na yau da kullun na tashar tashoshi 16.A zamanin yau, don magance matsalar wayoyi na PCB na ƙananan nunin LED, wasu masana'antun IC direbobi sun gabatar da ingantacciyar hanyar haɗin 48-tashar LED kwakwalwan direba na yanzu.
Alamomin aiki na direba IC:
Daga cikin alamun aikin nunin LED, ƙimar wartsakewa, matakin launin toka da bayyanar hoto sune ɗayan mahimman bayanai.Wannan yana buƙatar babban daidaito na halin yanzu tsakanin tashoshi na nunin LED direban IC, ƙimar saurin sadarwa mai sauri da saurin amsawa na yanzu.A baya, ƙimar wartsakewa, sikelin launin toka da rabon amfani sun kasance alaƙar ciniki.Don tabbatar da cewa ɗaya ko biyu daga cikin alamun na iya zama mafi kyau, ya zama dole a sadaukar da sauran alamomi guda biyu daidai.Saboda wannan dalili, yana da wahala ga nunin LED da yawa don samun mafi kyawun duniyoyin biyu a aikace-aikace masu amfani.Ko dai adadin wartsakewa bai isa ba, kuma baƙaƙen layukan suna da saurin bayyana lokacin harbi da kayan kyamara masu sauri, ko launin toka bai isa ba, kuma launi da haske ba su da daidaituwa.Tare da ci gaban fasaha na masu kera IC direba, an sami ci gaba a cikin manyan matsaloli uku, kuma an magance waɗannan matsalolin.
A cikin aikace-aikacen nunin cikakken launi na LED, don tabbatar da kwanciyar hankali na ido na mai amfani na dogon lokaci, ƙarancin haske da babban launin toka sun zama ma'auni mai mahimmanci musamman don gwada aikin direban IC.
Lokacin aikawa: Oktoba-09-2022