Takardar Bayanin LTP-3362JD LED Display - Tsawon Lamba 0.3-inch - AlInGaP Hyper Red - Karfin Wutar Gaba 2.6V - Takardar Fasaha ta Hausa

1. Bayanin Samfur

Wannan takarda tana cikakken bayani game da ƙayyadaddun bayanai na nuni na LED mai lambobi biyu, mai sassa 17, wanda ke nuna lambobi da haruffa, tare da tsawon lamba 0.3-inch (7.62 mm). An ƙera wannan na'urar ne don samar da bayyanannen lambobi da haruffa a cikin aikace-aikacen da ke buƙatar nuna bayanin lambobi da haruffa kaɗan. Tsarin ginshiƙansa ya yi amfani da ƙwararrun ƙwayoyin LED na AS-AlInGaP (Aluminum Indium Gallium Phosphide) Hyper Red, waɗanda aka girma akan tushen Gallium Arsenide (GaAs). Zaɓin wannan fasaha yana da mahimmanci don cimma takamaiman launi da halayen aiki da aka zayyana a cikin wannan takardar bayanin. Ɗabi'ar gani tana da fuskar baƙi tare da sassa farare, haɗin da aka inganta don babban bambanci da kyakkyawan bayyanar haruffa a ƙarƙashin yanayin haske daban-daban.

1.1 Fa'idodi na Asali da Aikace-aikacen Manufa

Nunin yana ba da fa'idodi masu mahimmanci da yawa waɗanda suka sa ya dace da kewayon kayayyakin lantarki. Ƙarancin buƙatun wutar lantarki shine babbar fa'ida ga na'urorin da ake amfani da baturi ko masu kula da makamashi. Babban haske da babban bambanci suna tabbatar da karantawa a cikin yanayi mai duhu da kuma haske mai haske. Faɗin kusurwar kallo yana ba da damar ganin bayanan da aka nuna a fili daga matsayi daban-daban, wanda ke da mahimmanci ga kayan lantarki na mabukaci, kayan aiki, da nunin bayanan jama'a. Ƙarfin amintaccen yanayin da ke cikin fasahar LED yana tabbatar da dogon rayuwar aiki da juriya ga girgiza da rawar jiki idan aka kwatanta da sauran fasahohin nuni kamar na'urori masu haske ko na'urori masu ƙonewa. An rarraba wannan nuni don ƙarfin haske, ma'ana ana rarraba raka'o'i ko tantance su bisa ga fitowar haske, don tabbatar da daidaito a cikin samarwa. Aikace-aikacen yau da kullun sun haɗa da mitoci na panel na dijital, kayan aikin gwaji, na'urorin likita, tashoshin siyarwa, panel iko na masana'antu, da nunin dashboard na mota inda ake buƙatar fitarwar lambobi da haruffa masu bayyanawa, amintacce.

2. Ƙayyadaddun Bayanai na Fasaha da Fassarar Manufa

Wannan sashe yana ba da cikakken bincike na haƙiƙa game da sigogi na lantarki, na gani, da na jiki waɗanda ke ayyana aikin nuni da iyakoki.

2.1 Matsakaicin Matsakaicin Matsayi

Waɗannan ƙididdiga suna ayyana iyakokin damuwa waɗanda sama da su za a iya haifar da lalacewa ta dindindin ga na'urar. Ba a ba da garantin aiki a ƙarƙashin ko a waɗannan iyakokin ba kuma ya kamata a guje su a cikin ƙirar da'ira.

• Rushewar Wutar Lantarki a kowane Sashi:70 mW. Wannan shine matsakaicin wutar lantarki da wani sashi na LED zai iya watsawa a matsayin zafi ba tare da haɗarin lalacewa ba.
• Matsakaicin Halin Gaba a kowane Sashi:90 mA. Ana ba da izinin wannan halin yanzu kawai a ƙarƙashin takamaiman yanayi na bugun jini (mitar 1 kHz, aikin aiki 10%) don cimma haske mai gaggawa ba tare da zafi sosai ba. Ba don ci gaba da aikin DC ba ne.
• Ci gaba da Halin Gaba a kowane Sashi:25 mA a 25°C. Wannan shine shawarar matsakaicin halin yanzu don aiki mai tsayayye. Ƙimar rage darajar 0.33 mA/°C tana nuna cewa dole ne a rage wannan matsakaicin halin yanzu yayin da yanayin yanayi ya tashi sama da 25°C don hana zafi sosai.
• Ƙarfin Wutar Juya baya a kowane Sashi:5 V. Yin amfani da ƙarfin wutar lantarki mai juyawa sama da wannan na iya rushe haɗin LED.
• Yanayin Aiki & Ma'ajiyar Zafin Jiki:-35°C zuwa +85°C. An ƙididdige na'urar don yin aiki kuma a adana ta a cikin wannan zangon zafin jiki.
• Yanayin Solder:260°C na dakika 3, tare da ƙarshen ƙarfe aƙalla 1/16 inch (kusan 1.6 mm) a ƙasa da matakin wurin zama na kayan. Wannan shiri ne mai mahimmanci don solder na igiyar ruwa ko na hannu don hana lalacewar zafi ga ƙwayoyin LED ko kunshin filastik.

2.2 Halaye na Lantarki & Na Gani

Waɗannan sune sigogin aikin yau da kullun da aka auna a ƙarƙashin ƙayyadaddun yanayin gwaji. Su ne ƙimar da masu ƙira yakamata su yi amfani da su don lissafin da'ira da tsammanin aiki.

• Matsakaicin Ƙarfin Hasken kowane Sashi (I_V):200 μcd (ƙarami), 600 μcd (na al'ada) a I_F= 1 mA. Wannan ma'auni ne na fitar da haske. Faɗin kewayon yana nuna tsarin rarrabawa; dole ne masu ƙira su yi la'akari da ƙimar ƙima don tabbatar da isasshen haske.
• Matsakaicin Tsawon Tsawon Watsawa (λ_p):650 nm (na al'ada) a I_F= 20 mA. Wannan shine tsawon zango inda fitowar bakan ta fi ƙarfi, yana sanya launi a cikin yankin hyper-red na bakan.
• Rabin Faɗin Layin Bakan (Δλ):20 nm (na al'ada). Wannan yana nuna tsaftar bakan ko yada tsayin zango da aka watsa a kusa da kololuwa. Ƙimar 20 nm ta al'ada ce ga LED ja na AlInGaP.
• Matsakaicin Tsawon Zango (λ_d):639 nm (na al'ada). Wannan shine tsawon zango guda ɗaya da idon ɗan adam ya gane wanda ya fi dacewa da launin LED, ɗan bambanta da tsayin zango saboda lanƙwaran hankali na ido.
• Ƙarfin Wutar Gaba a kowane Sashi (V_F):2.0 V (ƙarami), 2.6 V (na al'ada) a I_F= 20 mA. Wannan shine faɗuwar wutar lantarki a kan wani sashi na LED lokacin aiki. Dole ne a ƙididdige resistors masu iyakancewar halin yanzu ta amfani da V mafi girma da ake tsammani_Fdon tabbatar da cewa halin yanzu bai wuce iyakoki ba.
• Halin Juya baya a kowane Sashi (I_R):100 μA (matsakaici) a V_R= 5 V. Wannan shine ƙaramin halin yanzu na ɓarna wanda ke gudana lokacin da LED ke da juyawar baya a cikin matsakaicin matsayinsa.
• Matsakaicin Daidaitawar Ƙarfin Hasken (I_V-m):2:1 (matsakaici). Wannan yana ƙayyadad da matsakaicin rabo da aka yarda tsakanin mafi haske da mafi duhu sashi a cikin na'ura guda ɗaya, yana tabbatar da bayyanar iri ɗaya.

2.3 Bayanin Tsarin Rarrabawa

Takardar bayanin ta bayyana a sarari cewa na'urar "an rarraba ta don ƙarfin haske." Wannan yana nufin tsarin rarrabawa ko rarrabuwa bayan samarwa. Duk da yake ba a lissafa takamaiman lambobin kwandon a nan ba, al'ada ta ƙunshi rarraba nunai bisa ga ƙimar haske da aka auna (misali, kwandon "mai haske" da kwandon "daidaitacce") don tabbatar da daidaito a cikin rukunin samarwa. Masu ƙira waɗanda ke samo wannan ɓangaren yakamata su yi tambaya game da kwandon da ake samu idan daidaiton haske mai ƙarfi a cikin raka'o'i da yawa yana da mahimmanci ga aikace-aikacensu. Kewayon ƙarfin wutar lantarki na gaba (V_F) (2.0V zuwa 2.6V) kuma yana nuna yuwuwar rarrabawar ƙarfin wutar lantarki na gaba, wanda zai iya shafar ƙirar samar da wutar lantarki.

3. Bayanin Injiniya, Haɗin kai, da Tari

3.1 Girman Kunshin da Pinout

An saka nuni a cikin kunshin LED na lambobi biyu na al'ada. An ba da duk ma'auni a cikin milimita tare da ƙimar haƙuri na al'ada na ±0.25 mm sai dai idan an faɗi. Dole ne masu ƙira su haɗa daidaitaccen sawun ƙafa da tsayi cikin ƙirar PCB da kuma na'urorin rufewa. Teburin haɗin fil yana da mahimmanci don haɗin kai daidai. Na'urar tana amfani da tsarin cathode gama gari na multiplex: Fil 4 shine cathode gama gari don Lamba 1, kuma Fil 10 shine cathode gama gari don Lamba 2. Sauran fil ɗin (1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 17, 18, 19, 20) sune anodes na sassan ɗaya ɗaya (A har zuwa U, gami da DP don maki goma). An lura da Fil 14 a matsayin "Babu Haɗin kai" (NC). Wannan tsari yana ba da damar lambobi biyu su yi tuƙi daban ta amfani da rarrabuwar lokaci, yana rage adadin fil ɗin direba da ake buƙata.

3.2 Zanen Da'ira na Ciki da Hanyar Tuƙi

Zanen da'ira na ciki yana nuna tsarin cathode gama gari na multiplex. Duk anodes na sassan da suka dace (misali, duk sassan 'A') tsakanin lambobi biyu an haɗa su a ciki. Don haskaka wani sashi akan takamaiman lamba, dole ne a tuƙi fil ɗin anode ɗinsa sama (tare da iyakancewar halin yanzu da ya dace), yayin da aka ja cathode na lambar da aka yi niyya ƙasa. Ta hanyar saurin zagayawa wane cathode na lamba yake aiki da saita anodes don tsarin da ake so, duka lambobi biyu suna bayyana suna ci gaba da haskakawa. Wannan hanyar tana buƙatar microcontroller ko takamaiman IC direba mai iya yin multiplex.

3.3 Jagororin Solder da Tari

Bin cikakken biyayya ga yanayin solder (260°C na dakika 3) yana da mahimmanci. Wuce wannan lokacin ko zafin jiki na iya lalata haɗin waya na ciki, lalata epoxy na LED, ko kuma cire kunshin. Don sake sake solder, dole ne a yi amfani da bayanin martaba wanda ya dace da wannan iyakar zafi. Bayanin game da kiyaye ƙarshen ƙarfe a ƙasa da matakin wurin zama yana taimakawa wajen hana canja wurin zafi kai tsaye zuwa mutuwar LED ta hanyar jagororin. Yakamata a kiyaye matakan kariya na ESD (Fitar da Wutar Lantarki) yayin sarrafawa da tattarawa don kare haɗin gwiwar semiconductor.

4. Binciken Aiki da Abubuwan Aikace-aikace

4.1 Yankunan Halaye na Al'ada

Duk da yake ba a sake yin takamaiman jadawali a cikin rubutu ba, yankuna na al'ada don irin wannan na'urar za su haɗa da:Halin Gaba (I_F) vs. Ƙarfin Wutar Gaba (V_F):Wannan lanƙwasa mai nuni yana nuna alaƙar tsakanin halin yanzu da ƙarfin wutar lantarki. Ƙarfin wutar gwiwa yana kusan 2.0V, bayan haka halin yanzu yana ƙaruwa da sauri tare da ƙananan ƙaruwar wutar lantarki, yana nuna buƙatar da'irar iyakancewar halin yanzu.Ƙarfin Hasken (I_V) vs. Halin Gaba (I_F):Wannan lanƙwasa gabaɗaya layi ne a ƙananan halin yanzu amma yana iya cika a manyan halin yanzu saboda tasirin zafi. Yana taimaka wa masu ƙira su zaɓi halin yanzu na aiki don cimma hasken da ake so yadda ya kamata.Ƙarfin Hasken vs. Yanayin Yanayi:Wannan yana nuna rage darajar fitar da haske yayin da zafin jiki ke ƙaruwa, wanda ke da mahimmanci ga ƙira da ke aiki a cikin yanayi mai zafi.Rarraba Bakan:Wani makircin da ke nuna ƙarfin hasken da aka watsa a tsawon tsayin zango, wanda ke tsakiya a kusa da 650 nm tare da rabin faɗin ~20 nm.

4.2 Abubuwan Ƙira da Shawarwarin Aikace-aikace

Iyakancewar Halin Yanzu:Resistor na jerin abubuwa wajibi ne ga kowane layin anode (ko direba mai halin yanzu akai) don saita halin yanzu na gaba. An ƙididdige ƙimar resistor kamar R = (V_wadata- V_F) / I_F. Yi amfani da matsakaicin V_F(2.6V) daga takardar bayanin don tabbatar da cewa halin yanzu bai taɓa wuce zaɓaɓɓen I ba_F(misali, 20 mA) a ƙarƙashin duk yanayi.Direba na Multiplex:Ana buƙatar microcontroller tare da isassun fil ɗin I/O ko takamaiman direban LED IC (kamar MAX7219 ko HT16K33) don sarrafa jerin multiplex, ƙimar sabuntawa, da sarrafa haske. Dole ne ƙimar sabuntawa ta yi girma sosai (>60 Hz) don guje wa flicker da ake iya gani.Rushewar Wutar Lantarki:Ƙididdige jimlar wutar lantarki: Don sashi ɗaya a 20 mA da 2.6V, P = 52 mW. Tare da sassa da yawa a kan, tabbatar da cewa ba a wuce iyakokin zafi na kunshin ba, musamman a manyan yanayin yanayi.Kusurwar Dubawa:Faɗin kusurwar kallo yana da fa'ida amma yi la'akari da babban shugabanci na kallo lokacin saka nuni a cikin akwati don guje wa inuwar daga bezel.

4.3 Kwatance da Tambayoyi na Gama gari

Kwatance da Sauran Fasahohi:Idan aka kwatanta da nunin sassa 7, tsarin sassa 17 yana ba da damar wakilcin haruffa (A-Z) wanda ya fi dacewa da karantawa, kodayake ba cikakke kamar nuni na matrix ɗin digo ba. Fasahar AlInGaP tana ba da ingantacciyar inganci da ingantaccen kwanciyar hankali na zafin jiki fiye da tsofaffin LED ja na GaAsP ko GaP.Tambayoyin Masu Amfani na Al'ada: Q: Shin zan iya tuƙa wannan nuni tare da samar da wutar lantarki akai-akai ba tare da resistors ba?A: A'a. Ƙarfin wutar lantarki na gaba yana da kewayon (2.0-2.6V). Ƙarfin wutar lantarki akai-akai da aka saita don matsakaicin V_Fzai iya yin halin yanzu mai yawa ga LED tare da ƙaramin V_F, yana haifar da gazawa da wuri. Koyaushe yi amfani da iyakancewar halin yanzu.Q: Me ya sa matsakaicin halin yanzu (90 mA) ya fi halin yanzu na ci gaba (25 mA) girma?A: LED na iya ɗaukar gajerun bugun jini, manyan halin yanzu don kololuwar haske (misali, don haskakawa) saboda makamashin zafi ba shi da lokacin taruwa da lalata haɗin gwiwa. Dole ne matsakaicin wutar lantarki ya kasance cikin iyakoki.Q: Menene manufar fil ɗin "Babu Haɗin kai"?A> Yawancin lokaci wurin ajiye kayan injini ne don daidaita adadin fil ɗin tare da sauran samfuran a cikin iyali ko don samar da daidaiton tsari. Kada a haɗa shi da kowane da'ira.

5. Ka'idojin Fasaha da Mahallin

5.1 Fasaha ta Asali: AlInGaP akan GaAs

Tsarin haske na asali shine haɗin gwiwar Aluminum Indium Gallium Phosphide (AlInGaP) wanda aka girma epitaxially akan tushen Gallium Arsenide (GaAs). Ta hanyar daidaita ma'auni na Aluminum, Indium, Gallium, da Phosphorus a cikin lattice crystal, za a iya daidaita makamashin bandgap—don haka tsayin zango da aka watsa—daidai. Wannan tsarin kayan yana da inganci musamman don samar da LED ja, orange, da rawaya masu haske. Kalmar "Hyper Red" tana nufin takamaiman abun da ke haifar da launin ja mai zurfi tare da ingantaccen haske. Tushen GaAs ba ya bayyana ga hasken da aka watsa, don haka an ƙera tsarin na'urar don fitarwa ta saman ta hanyar ruwan tabarau na epoxy na kunshin.

5.2 Mahallin Masana'antu da Trends

A lokacin fitar da wannan takardar bayanin (2003), fasahar AlInGaP ta wakilci ci gaba mai mahimmanci akan tsofaffin kayan LED na launuka ja/orange. Trends a cikin nunin lambobi da haruffa tun daga lokacin ya ƙaura zuwa manyan panel ɗin matrix ɗin digo kuma, kwanan nan, Organic LED (OLED) ko micro-LED displays don ƙarin sassauci da ikon cikakken launi. Duk da haka, nunin LED masu rarrabuwa kamar wannan sun kasance masu dacewa sosai ga aikace-aikacen da ke buƙatar amincin matuƙa, dogon rayuwa, babban haske, sauƙi, da ƙaramin farashi a cikin ayyukan monochromatic ko iyakance launi. Yanayin su na ƙwaƙƙwaran jiki, ƙarancin amfani da wutar lantarki, da kyakkyawan karantawa suna tabbatar da ci gaba da amfani da su a fannonin masana'antu, motoci, da kayan aiki inda waɗannan halayen suka fi mahimmanci.