Takardun Bayanan Fasaha na Nunin LED na LTP-1457AKY - Tsayin Matrix 1.2-inch (30.42mm) - AlInGaP Amber Yellow - Tsarin Digo 5x7 - Takardun Fasaha na Turanci

1. Bayyani Game da Samfur

LTP-1457AKY na'urar nuni ce ta lamba ɗaya, mai nuna haruffa da lambobi wacce aka tsara don aikace-aikacen da ke buƙatar fitarwa mai tsabta da karantawa. Babban abin da ya ƙunshi shi ne tsarin matrix na digo 5x7, wanda ke ba da ƙudurin da ake buƙata don daidaitattun saitin haruffa na ASCII da EBCDIC. Halin gani da ya keɓance shi shi ne fitowar launin rawaya, wanda aka samu ta hanyar amfani da guntun LED na AlInGaP (Aluminum Indium Gallium Phosphide). Wannan kayan semiconductor an san shi da ingantaccen aiki da kyakkyawan gani. Bayyanar jiki yana da farantin fuska mai launin toka tare da fararen digo, yana ba da babban bambanci na bango don abubuwan da aka haskaka, wanda ke haɓaka karantawa a ƙarƙashin yanayin haske daban-daban.

An ƙera na'urar don ƙarancin amfani da wutar lantarki da amincin ƙwaƙƙwaran jiki, wanda ya sa ya dace da haɗawa cikin kayan lantarki iri-iri. Ginin sa na fil ɗaya da faɗin kusurwar kallo suna tabbatar da cewa bayanan da aka nuna ana iya gani daga mahanga daban-daban. Wani muhimmin siffa na injiniya shi ne iyawar sa na tarawa a kwance, wanda ke ba da damar sanya raka'a da yawa a gefe da gefe don samar da nunin haruffa da yawa ba tare da manyan gibi ba, wanda ke da mahimmanci don ƙirƙirar saƙo ko karatun lambobi.

2. Zurfin Binciken Ƙayyadaddun Fasaha

2.1 Halayen Gani (Optical)

Aikin gani shine tsakiyar aikin nunin. Babban tushen shi ne guntun LED na AlInGaP da aka girma akan wani abu marar wucewa na GaAs. Matsakaicin tsayin fitarwa mai kololuwa (λp) shine 595 nm, tare da babban tsayin zango (λd) na 592 nm, yana tabbatar da fitarwa a cikin bakan launin rawaya. Rabin faɗin layin bakan (Δλ) shine 15 nm, yana nuna fitarwar launi mai tsabta. Matsakaicin ƙarfin haske (Iv) a kowane digo an ƙayyade shi da mafi ƙarancin 2100 μcd da kuma ƙimar al'ada na 3800 μcd a ƙarƙashin yanayin gwaji na kololuwar halin yanzu na 80 mA da zagaye na aiki na 1/16. Matsakaicin daidaiton ƙarfin haske tsakanin digo shine 2:1 mafi girma, yana tabbatar da haske iri ɗaya a cikin matrix na haruffa.

2.2 Halayen Wutar Lantarki

Ma'auni na wutar lantarki suna ayyana iyakokin aiki da yanayi don nunin. Matsakaicin ƙarfin lantarki na gaba (Vf) don kowane digo na LED yawanci yana tsakanin 2.05V zuwa 2.6V a halin yanzu na gaba (If) na 20 mA. Halin yanzu na baya (Ir) an iyakance shi zuwa matsakaicin 100 μA lokacin da aka yi amfani da ƙarfin lantarki na baya (Vr) na 5V. Waɗannan ma'auni suna da mahimmanci don ƙirƙirar da'irar tuƙi daidai don tabbatar da tsawon rayuwa da aiki.

2.3 Matsakaicin Matsakaicin Ƙididdiga

Waɗannan ƙididdiga suna ƙayyade iyakokin da wanda lalacewa ta dindindin na iya faruwa bayansa. Matsakaicin ɓarnawar wutar lantarki a kowane digo bai kamata ya wuce 25 mW ba. Matsakaicin halin yanzu na gaba a kowane digo an ƙididdige shi a 60 mA, amma kawai a ƙarƙashin yanayin bugun jini (1/10 zagaye na aiki, faɗin bugun jini 0.1 ms). Matsakaicin halin yanzu na gaba a kowane digo yana da ƙimar raguwa na 0.17 mA/°C farawa daga 25°C. Matsakaicin ƙarfin lantarki na baya a kowane digo shine 5V. An ƙididdige na'urar don yanayin aiki da adanawa daga -35°C zuwa +85°C. Yanayin solder bai kamata ya wuce 260°C sama da dakika 3 a wani wuri 1.6mm ƙasa da matakin wurin zama yayin haɗawa.

3. Bayanan Injiniya da Kunshewa

3.1 Girman Jiki

Nunin yana da tsayin matrix na 1.2 inches (30.42 mm). An ba da cikakkun bayanai game da girman fakitin gabaɗaya a cikin zanen cikakke a cikin takardun bayanan, tare da duk ma'auni a cikin milimita. Matsakaicin ƙididdiga na waɗannan ma'auni shine ±0.25 mm sai dai idan an ƙayyade akasin haka. An ƙera fakitin don sauƙaƙe fasalin tarawa a kwance da aka ambata a cikin bayyani.

3.2 Tsarin Fil da Da'irar Ciki

Mahaɗin na'urar ya ƙunshi fil 14. Tsarin fil kamar haka ne: Fil 1: Cathode Layi 5; Fil 2: Cathode Layi 7; Fil 3: Anode Ginshiƙi 2; Fil 4: Anode Ginshiƙi 3; Fil 5: Cathode Layi 4; Fil 6: Anode Ginshiƙi 5; Fil 7: Cathode Layi 6; Fil 8: Cathode Layi 3; Fil 9: Cathode Layi 1; Fil 10: Anode Ginshiƙi 4; Fil 11: Anode Ginshiƙi 3 (Lura: Aiki mai maimaitawa tare da Fil 4, mai yiwuwa kuskuren takardun bayanai ko takamaiman haɗin ciki); Fil 12: Cathode Layi 4 (Maimaitawa na Fil 5); Fil 13: Anode Ginshiƙi 1; Fil 14: Cathode Layi 2.

Zanen da'irar ciki yana nuna daidaitaccen tsari na cathode gama-gari don matrix 5x7. Layukan layi bakwai (cathodes) da layukan ginshiƙi biyar (anodes) suna haɗuwa a digo 35 na LED. Don haskaka takamaiman digo, dole ne a tuƙi layin cathode ɗin da ya dace ƙasa (ƙasa) yayin da ake tuƙa ginshiƙin anode ɗinsa sama (ana ba da halin yanzu ta hanyar resistor mai iyakancewa halin yanzu). Wannan tsarin matrix yana rage adadin fil ɗin tuƙi da ake buƙata (12 don matrix 5x7 maimakon 35 don digo ɗaya).

4. Shawarwarin Aikace-aikace da Abubuwan Ɗauka a Zuciya na Zane

4.1 Yanayin Aikace-aikace na Al'ada

Wannan nunin ya dace sosai don aikace-aikacen da ke buƙatar harafi ɗaya, mai iya gani sosai. Amfanin gama gari sun haɗa da alamomin yanayi akan allunan sarrafa masana'antu, karatun lambobi akan kayan aikin gwaji da aunawa, nunin harafi ɗaya a cikin tsarin da aka haɗa don gyara kurakurai ko nuna yanayi, da kuma a matsayin tubalan gini don allunan lambobi da yawa a cikin kayan aiki kamar agogo, ƙidaya, ko allunan saƙo masu sauƙi.

4.2 Abubuwan Ɗauka a Zuciya na Zane da Tuƙi

Tuƙin matrix 5x7 yana buƙatar tsarin haɗawa. Tunda dole ne a yi aiki da layi ɗaya a lokaci ɗaya don hana fatalwa da ɗaukar halin yanzu mai yawa, ana buƙatar microcontroller ko takamaiman IC ɗin tuƙin nunin don zagayawa cikin layuka bakwai da sauri (yawanci a ƙimar >60 Hz don guje wa flicker). Ana aika bayanan ginshiƙi don layin da ke aiki lokaci ɗaya. Dole ne a ƙididdige matsakaicin halin yanzu na gaba a kowane digo bisa la'akari da kololuwar halin yanzu da kuma zagaye na aiki (1/7 don haɗawa na layi-a-lokaci na al'ada). Misali, don cimma matsakaicin halin yanzu na digo da ake so na 10 mA, kololuwar halin yanzu yayin lokacin aikin layinsa zai buƙaci ya zama 70 mA (10 mA * layuka 7). Dole ne a duba wannan da matsakaicin ƙididdiga na kololuwar halin yanzu (60 mA a 1/10 zagaye na aiki). Saboda haka, ƙididdige tsarin haɗawa da resistors masu iyakancewa halin yanzu yana da mahimmanci. Faɗin yanayin aiki yana ba da damar amfani a cikin wuraren da ba a sarrafa yanayin ba.

5. Binciken Lanƙwasa Aiki

Takardun bayanai yana nuni zuwa lanƙwasa halaye na wutar lantarki/gani na al'ada. Duk da yake ba a ƙayyade takamaiman jadawali a cikin rubutun da aka bayar ba, irin waɗannan lanƙwasa gabaɗaya sun haɗa da:

• Halin Yanzu na Gaba vs. Ƙarfin Lantarki na Gaba (Lanƙwasa I-V):Wannan yana nuna alaƙar da ke tsakanin halin yanzu ta hanyar LED da ƙarfin lantarki a cikinta. Ba shi da layi, tare da ƙarfin lantarki na kunna (kusan 2V don AlInGaP) bayan haka halin yanzu yana ƙaruwa da sauri tare da ƙananan ƙaruwar ƙarfin lantarki. Wannan lanƙwasa tana da mahimmanci don zaɓar ƙimar resistor mai iyakancewa halin yanzu da ta dace a cikin da'irar tuƙi mai ƙarfin lantarki mai tsayi.
• Ƙarfin Hasken Haske vs. Halin Yanzu na Gaba:Wannan lanƙwasa tana nuna yadda fitarwar haske ke ƙaruwa tare da ƙaruwar halin yanzu. Gabaɗaya yana da layi a cikin wani yanki amma zai cika a halin yanzu mai yawa sosai. Yin aiki a cikin yankin layi yana da mahimmanci don sarrafa haske ta hanyar modulation na faɗin bugun jini (PWM).
• Ƙarfin Hasken Haske vs. Yanayin Yanayi:Wannan yana nuna raguwar fitarwar haske yayin da yanayin haɗin LED ke ƙaruwa. Don AlInGaP, inganci yawanci yana raguwa tare da hawan zafin jiki, ma'ana nunin na iya bayyana duhu a cikin yanayin zafi mai yawa idan ba a biya shi da halin yanzu na tuƙi ba.
• Rarraba Bakan:Zanen matsakaicin ƙarfi dangane da tsayin zango, yana nuna tattarawar fitarwar haske a kusa da babban tsayin zango (592 nm) da faɗin bakan (rabin faɗi 15 nm).

Masu zane ya kamata su tuntuɓi waɗannan lanƙwasa don inganta yanayin tuƙi don haske, inganci, da tsawon rayuwa a cikin kewayon yanayin aiki da aka yi niyya.

6. Jagororin Solder da Haɗawa

Muhimmin ma'auni don haɗawa shine juriyar zafin solder. Zaɓuɓɓukan za su iya jure matsakaicin zafin jiki na 260°C na matsakaicin tsawon lokaci na dakika 3, wanda aka auna a wani wuri 1.6 mm (1/16 inch) ƙasa da matakin wurin zama na fakitin. Wannan ƙididdiga ce ta al'ada don hanyoyin solder na igiyar ruwa ko sake kunnawa. Yana da mahimmanci a bi wannan iyaka don hana lalacewa ga haɗin waya na ciki ko guntun LED da kansu. Ya kamata a kiyaye matakan kariya na ESD (Fitar da Wutar Lantarki ta Electrostatic) yayin sarrafawa da haɗawa, saboda LED suna da hankali ga wutar lantarki. Ajiya ya kamata ya kasance a cikin ƙayyadadden kewayon zafin jiki na -35°C zuwa +85°C a cikin yanayi mai ƙarancin zafi.

7. Kwatancen Fasaha da Bambance-bambance

Babban abin da ya bambanta LTP-1457AKY shine amfani da fasahar AlInGaP da takamaiman siffar injiniyarsa. Idan aka kwatanta da tsofaffin fasahohin LED na GaAsP ko GaP, AlInGaP yana ba da ingantaccen inganci na haske, wanda ke haifar da fitarwa mai haske don shigarwar wutar lantarki iri ɗaya, da ingantaccen launi. Ana zaɓar launin rawaya sau da yawa saboda babban tasirin gani da hasken da idon ɗan adam ya gane. Tsayin harafin 1.2-inch wani takamaiman girma ne wanda zai iya zama girma fiye da na al'ada na 0.56-inch ko 0.8-inch, yana sa ya dace da aikace-aikacen da nisan kallo ya fi girma ko kuma gani ya fi mahimmanci. Tarawa a kwance fasali ne mai amfani wanda ba koyaushe yana cikin nunin makamancin haka ba, yana sauƙaƙe zanen jerin haruffa da yawa.

8. Tambayoyin da ake yawan yi (Dangane da Ma'auni na Fasaha)

Q: Ta yaya zan tuƙi wannan nunin tare da microcontroller?

A: Kuna buƙatar aƙalla fil ɗin GPIO 12 (7 don layuka, 5 don ginshiƙai). Aiwatar da tsarin bincike wanda ke kunna layi ɗaya (cathode ƙasa) a lokaci ɗaya yayin amfani da tsarin wannan layin ga fil ɗin ginshiƙi 5 (anode) ta hanyar resistors masu iyakancewa halin yanzu. Dole ne binciken ya yi sauri don guje wa flicker (>60 Hz ƙimar firam).

Q: Wane ƙimar resistor mai iyakancewa halin yanzu ya kamata in yi amfani da shi?

A: Ya dogara da ƙarfin lantarkin ku (Vcc) da halin yanzu na aiki da kuke so. Yi amfani da dabara: R = (Vcc - Vf) / If. Don samar da 5V da matsakaicin Vf na 2.3V a 20 mA, R = (5 - 2.3) / 0.02 = 135 Ω. Yi amfani da ƙimar daidaitaccen ƙima mafi kusa (misali, 130 Ω ko 150 Ω). Ku tuna wannan don aiki mai tsayi; don aikin haɗawa, kololuwar halin yanzu zai fi girma.

Q: Zan iya amfani da wannan nunin a waje?

A: Kewayon yanayin aiki (-35°C zuwa +85°C) yana da faɗi sosai, yana nuna ƙarfi. Duk da haka, takardun bayanai bai ƙayyade ƙimar IP (Kariyar Shiga) don juriyar ruwa ko ƙura ba. Don amfani a waje, mai yiwuwa nunin zai buƙaci ya kasance a bayan taga mai kariya ko a cikin wani akwati da aka rufe don hana shigar danshi da datti, wanda zai iya lalata na'urorin lantarki ko ɓoye fuska.

Q: Me ya sa akwai ayyukan fil masu maimaitawa (misali, Fil 4 & 11, Fil 5 & 12)?

A: Wannan mai yiwuwa kuskure ne a cikin ɓangaren teburin haɗin fil da aka bayar. A cikin daidaitaccen matrix 5x7, ana buƙatar sigina na musamman 12 kawai (ginshiƙai 5 + layuka 7). Maimaitawar na iya zama haɗin ciki zuwa kumburin guda ɗaya don ba da zaɓuɓɓukan hanyar PCB ko kuma kuskuren takardu ne. Zanen da'irar ciki shine tushen ingantaccen tushe don haɗawa.

9. Gabatarwar Ka'idar Aiki

Tushen ka'idar ya dogara ne akan electroluminescence na semiconductor. Lokacin da aka yi amfani da ƙarfin lantarki na gaba wanda ya wuce ƙarfin lantarki na kunna a kan haɗin p-n na AlInGaP, electrons da ramuka suna sake haɗuwa a cikin yankin aiki, suna sakin makamashi a cikin nau'in photons. Takamaiman abun da ke cikin Aluminium, Indium, Gallium, da Phosphide yana ƙayyade ƙarfin bandgap, wanda ke da alaƙa kai tsaye da tsayin zango (launi) na hasken da aka fitar—a wannan yanayin, rawaya. Matrix 5x7 wata dabara ce ta magance wacce ke rage adadin layukan sarrafawa da ake buƙata daga 35 (ɗaya kowane digo) zuwa 12 (layuka + ginshiƙai) ta hanyar tsara LED a cikin grid. Ana sarrafa haskakawa ta hanyar zaɓin kunna wuraren haɗuwa na layukan da aka ba da wutar lantarki da ginshiƙai.

10. Trends na Fasaha da Mahallin

Nunin kamar LTP-1457AKY suna wakiltar fasaha mai girma, mai dogaro don fitarwa ta haruffa da lambobi ɗaya da ƙananan lambobi. Duk da yake manyan nunin zane-zane da OLED sun zama ruwan dare don hadaddun bayanai, ƙananan ƙwayoyin matrix na LED sun kasance masu dacewa sosai a cikin masana'antu, kayan aikin aunawa, da aikace-aikacen da aka haɗa saboda sauƙinsu, ƙarfi, haske mai girma, faɗin kusurwar kallo, da kyakkyawan tsawon rayuwa. Canji daga tsofaffin kayan LED zuwa AlInGaP, kamar yadda aka gani a cikin wannan na'urar, wani muhimmin yanayi ne wanda ya inganta inganci da kewayon launi. Trends na yanzu a cikin sassa na nunin makamancin haka na iya haɗawa da haɗa da'irar tuƙi a kan kayan aikin da kanta (yana buƙatar bayanan jeri da shigarwar wutar lantarki kawai), amfani da ƙarin ingantattun kayan kamar InGaN don launuka daban-daban, da ƙira da aka inganta don hanyoyin haɗawa ta atomatik. Babban fa'idodin amincin ƙwaƙƙwaran jiki, ƙarancin wutar lantarki, da babban gani suna tabbatar da ci gaba da amfani da wannan fasaha a cikin takamaiman wurare.