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Makullin ingancin nunin LED

Nunin LED yana kunshe da jeri na diodes masu fitar da haske, don haka ingancin LED yana shafar ingancin nunin kai tsaye.

1. Haske da kusurwar kallo

Hasken allon nuni ya dogara ne akan ƙarfin haske da yawan LED na LED.A cikin 'yan shekarun nan, sababbin fasahohin LED a cikin substrate, epitaxy, guntu da kunshin sun fito ba tare da ƙarewa ba, musamman ma kwanciyar hankali da balaga na fasahar fadada Layer na yanzu da kuma aiwatar da indium tin oxide (ITO), wanda ya inganta ƙarfin haske na LED. .A halin yanzu, a karkashin yanayin cewa a kwance kusurwar kallo yana da digiri 110, kuma kusurwar tsaye yana da digiri 50, ƙarfin haske na bututun kore ya kai 4000 mcd, jan bututu ya kai 1500 mcd, kuma blue tube yana da 1500 mcd. ya kai 1000 mcd.Lokacin da tazarar pixel ta kasance 20mm, hasken allon nuni zai iya kaiwa fiye da 10,000nit.Nuni na iya aiki ko da yaushe a kowane yanayi

Lokacin da ake magana game da hangen nesa na allon nuni, akwai wani sabon abu da ya cancanci tunani: Filayen nunin LED, musamman allon nunin waje, ana kallon su ne daga ƙasa zuwa sama, yayin da a cikin nau'ikan allo na nunin LED na yanzu, rabin hasken haske. bace a sararin sama.

Na cikin gida LED Screen SMD Machines Ana Sanye take Don Layukan samarwa (2)
game da mu

2. Daidaituwa da tsabta

Tare da haɓaka fasahar nunin LED, daidaituwa ya zama alama mafi mahimmanci don auna ingancin nuni.Sau da yawa ana cewa nunin LED yana da "kyakkyawa a kowane yanki kuma yana da haske a kowane yanki", wanda shine ma'ana mai haske don rashin daidaituwa tsakanin pixels da kayayyaki.Sharuɗɗan ƙwararru sune "tasirin kura" da "mosaic phenomenon".

Babban abubuwan da ke haifar da rashin daidaituwa shine: ma'aunin aikin LED ba daidai ba ne;Rashin daidaituwa daidaitaccen taro na allon nuni yayin samarwa da shigarwa;Ma'auni na lantarki na sauran kayan lantarki ba daidai ba ne;Ba a daidaita ƙirar kayayyaki da PCBs ba.

Babban dalilin shine "rashin daidaituwa na sigogin aikin LED".Rashin daidaituwa na waɗannan sigogin aikin sun haɗa da: ƙarancin haske mara daidaituwa, axis na gani mara daidaituwa, daidaitawar launi mara daidaituwa, madaidaicin hasken hasken rarraba na kowane launi na farko, da halaye mara daidaituwa.

Yadda za a magance rashin daidaituwa na ma'auni na LED, akwai manyan hanyoyi guda biyu na fasaha a cikin masana'antu a halin yanzu: na farko, inganta daidaito na aikin LED ta hanyar kara rarraba ma'auni na LED;Sauran shine don inganta daidaiton allon nuni ta hanyar gyara na gaba.Gyaran da ya biyo baya shima ya ci gaba tun daga farkon gyare-gyaren gyare-gyare da gyare-gyaren na'ura zuwa ma'ana ta yau ta gyaran maki.Fasahar gyaran gyare-gyare ta haɓaka daga sauƙi mai sauƙi mai sauƙi mai sauƙi zuwa gyare-gyaren launi mai haske.

Duk da haka, mun yi imanin cewa gyara na gaba ba shi da iko.Daga cikin su, rashin daidaituwa na axis na gani, rashin daidaituwa na rarraba hasken wutar lantarki, rashin daidaituwa na halayen attenuation, rashin daidaituwa na haɗuwa da rashin daidaituwa ba za a iya kawar da shi ta hanyar gyara na gaba ba, kuma ko da wannan gyara na gaba zai kara tsananta rashin daidaituwa na axis na gani. , attenuation da daidaito taro.

Sabili da haka, ta hanyar aiki, ƙarshenmu shine cewa gyara na gaba shine kawai magani, yayin da yanki na siginar LED shine tushen tushen da kuma makomar masana'antar nunin LED.

Dangane da dangantakar dake tsakanin daidaituwar allo da ma'anar, sau da yawa ana samun rashin fahimta a cikin masana'antar, wato, ƙuduri ya maye gurbin ma'anar.A haƙiƙa, ma'anar allon nuni shine ji na zahirin idon ɗan adam akan ƙuduri, daidaituwa (rabo na sigina zuwa amo), haske, bambanci da sauran abubuwan allon nuni.Kawai rage tazarar pixel na zahiri don inganta ƙuduri, yayin da yin watsi da daidaito, babu shakka shine inganta tsabta.Ka yi tunanin allon nuni tare da "tasirin kura" da "al'amarin mosaic".Ko da tazarar pixel na zahiri ƙarami ne kuma ƙudurinsa yana da girma, ba zai yuwu a sami ma'anar hoto mai kyau ba.

Saboda haka, a wata ma'ana, "uniformity" maimakon "tsarin pixel ta jiki" a halin yanzu yana ƙuntata haɓaka ma'anar nunin LED.

Maɓalli don ingancin nunin LED (1)
Makullin ingancin nunin LED (2)

3. Nuna pixel allo daga sarrafawa

Akwai dalilai da yawa na nunin pixels don fita daga sarrafawa, mafi mahimmancin su shine " gazawar LED ".

Babban abubuwan da ke haifar da gazawar LED ana iya kasu kashi biyu: daya shine rashin ingancin LED kanta;Na biyu, hanyar amfani ba ta dace ba.Ta hanyar bincike, mun ƙaddamar da alaƙar da ta dace tsakanin hanyoyin gazawar LED da manyan dalilai guda biyu.

Kamar yadda aka ambata a sama, yawancin gazawar LED ba za a iya samun su ba a cikin dubawa na yau da kullun da gwajin LED.Bugu da ƙari, ana yin watsi da wutar lantarki, babban halin yanzu (wanda ke haifar da zafin jiki mai yawa), ƙarfin waje da sauran rashin amfani da ba daidai ba, yawancin LED gazawar suna haifar da matsalolin ciki daban-daban wanda ya haifar da nau'in haɓakar haɓakar thermal na kwakwalwan LED, resins epoxy, goyon baya, ciki. kaiwa, m crystal adhesives, PPA kofuna da sauran kayan a karkashin high zafin jiki, low zazzabi, m zazzabi canje-canje ko wasu m yanayi.Saboda haka, LED ingancin dubawa aiki ne mai matukar rikitarwa.

Makullin ingancin nunin LED (3)
Alamar dijital ta zama sabon abin da aka fi so a fagen ƙaramin nunin LED (6)

4. Rayuwa

Abubuwan da ke shafar rayuwar allon nunin LED sun haɗa da abubuwan ciki da na waje, gami da aikin kayan aikin gefe, aikin na'urori masu fitar da hasken LED, da juriya na gajiyar samfuran;Abubuwan ciki sun haɗa da yanayin aiki na allon nuni na LED, da sauransu.

1).Tasirin bangaren na gefe

Baya ga na'urorin da ke fitar da hasken LED, nunin LED yana kuma amfani da sauran abubuwan da ke kewaye da su, ciki har da allunan kewayawa, harsashi na filastik, kayan wutan lantarki, masu haɗawa, chassis, da dai sauransu. Duk wata matsala tare da sashi ɗaya na iya rage rayuwar nunin.Sabili da haka, mafi tsayin rayuwa na allon nuni yana ƙaddara ta rayuwar maɓalli mai mahimmanci tare da mafi ƙarancin rayuwa.Misali, LED, sauya wutar lantarki da gidaje na ƙarfe duk an zaɓi su bisa ga ma'auni na shekaru 8, yayin da aikin tsarin kariya na hukumar kewayawa zai iya tallafawa aikin sa na shekaru 3 kawai.Bayan shekaru 3, zai lalace saboda lalata, don haka kawai zamu iya samun allon nuni na shekaru 3 kawai.

2).Tasirin Ayyukan Na'urar Fitar da Hasken LED

Na'urori masu fitar da hasken LED sune mafi mahimmanci da abubuwan da suka danganci rayuwa na allon nuni.Don LED, galibi ya haɗa da alamomi masu zuwa: halayen attenuation, halayen haɓakar tururin ruwa, da juriya na ultraviolet.Idan mai kera nuni na LED ya kasa ƙaddamar da kimantawa akan aikin nuna alama na na'urorin LED, za a yi amfani da shi zuwa nunin, wanda zai haifar da babban adadin haɗari masu inganci kuma yana tasiri sosai ga rayuwar nunin LED.

3).Sakamakon gajiya juriya na samfurori

A anti gajiya yi na LED nuni allo kayayyakin dogara a kan samar tsari.Yana da wahala a tabbatar da aikin rigakafin gajiyar na'urorin da aka samar ta hanyar tsarin rigakafin rashin lafiya guda uku.Lokacin da yanayin zafi da zafi suka canza, farfajiyar kariya na allon kewayawa zai bayyana tsagewa, wanda zai haifar da raguwar aikin kariyar.

Sabili da haka, tsarin samar da allon nunin LED shima muhimmin abu ne don sanin rayuwar allon nuni.A samar da tsari da hannu a samar da nuni allon hada da: bangaren ajiya da pretreatment tsari, makera walda tsari, uku proofing tsari, hana ruwa sealing tsari, da dai sauransu A tasiri na tsari yana da alaka da zabi da rabo na kayan, siga iko da kuma da dai sauransu. ingancin masu aiki.Ga mafi yawan masana'antun nunin LED, tarin ƙwarewa yana da mahimmanci.Ma'aikata tare da shekaru masu yawa na gwaninta za su sarrafa tsarin samarwa yadda ya kamata.

4).Tasirin yanayin aiki

Saboda dalilai daban-daban, yanayin aiki na allon nuni ya bambanta sosai.Dangane da yanayi, bambancin zafin jiki na cikin gida yana da ƙananan, kuma babu wani tasiri na ruwan sama, dusar ƙanƙara da hasken ultraviolet;Matsakaicin bambancin zafin jiki a waje zai iya kaiwa digiri 70, da iska, rana da ruwan sama.Mummunan yanayi zai kara daɗa tsufa na allon nuni, kuma yanayin aiki shine muhimmin abu da ke shafar rayuwar allon nuni.

Rayuwar allon nunin LED an ƙaddara ta dalilai da yawa, amma ƙarshen rayuwa ta haifar da abubuwa da yawa ana iya ƙarawa ta hanyar maye gurbin sassa (kamar sauya wutar lantarki).Duk da haka, LED ba za a iya maye gurbinsu da yawa.Saboda haka, da zarar rayuwar LED ta ƙare, yana nufin rayuwar allon nunin ya ƙare.

Mukan ce rayuwar LED ta ƙayyade rayuwar allon nuni, amma ba muna nufin cewa rayuwar LED tana daidai da rayuwar allon nuni ba.Tun da allon nuni baya aiki da cikakken nauyi a duk lokacin da yake aiki, tsawon rayuwar allon nuni ya kamata ya zama sau 6-10 na LED lokacin da yake kunna shirye-shiryen bidiyo akai-akai, kuma tsawon rayuwar LED ɗin zai iya. zama tsayi lokacin da yake aiki a ƙananan halin yanzu.Saboda haka, tsawon rayuwar nunin nunin LED tare da wannan alamar na iya kaiwa kimanin sa'o'i 50000.


Lokacin aikawa: Dec-20-2022