Zolepherazi zimakhala ndi machitidwe, ndipo zambiri zimatha kuzindikirika pakadutsa mphindi 30 kapena kuchepera. Bukuli lakonzedwa mozungulira momwe kuthetsera kumagwirira ntchito: kuyambira pazomwe mukuwonera pazenera, kenako ndikubwerera mmbuyo ku zomwe zidayambitsa. Kaya mumasamaliramalonda LCD zowonetsera zowonetseram'masitolo, yendetsani mapanelo m'makiosks a anthu onse, kapena sinthani ma hardware ophatikizidwa panthawi yachitukuko, njira yowunikira ndiyofanana.
Quick Symptom Reference
Gwiritsani ntchito tebulo ili ngati fyuluta yanu yoyamba. Zifukwa zingapo zimatha kutulutsa chizindikiro chomwecho, choncho chitengeni ngati njira yoyambira, osati yankho lomaliza.
| Chizindikiro | Mwina Chifukwa | Chochita Choyamba |
|---|---|---|
| Chophimba chakuda kwathunthu, palibe chowunikira | Kulephera kwa mphamvu kapena fuse yowombedwa | Yezerani mphamvu yamagetsi pazikhomo za module |
| Screen yatsegulidwa koma yocheperako kwambiri | Kuwonongeka kwa backlight kapena kulephera kwa gulu la LED | Yesani dera la backlight palokha |
| Chithunzi chosawoneka bwino chowoneka ndi tochi yokha | Kulephera kwa kuwala kwambuyo - gulu lokha limagwira ntchito | Yang'anani mizere ya LED ndi mayendedwe oyendetsa |
| Chiwonetsero chonyezimira kapena chonyezimira | Chingwe chotayira cha riboni kapena magetsi osakhazikika | Yambitsaninso zolumikizira zonse; fufuzani ripple yopereka |
| Mizere yoyima kapena yopingasa pazenera | Gawo lapansi losweka kapena kulakwitsa kwa driver IC | Kuyang'ana kowoneka; kusinthana kwa driver board |
| Malembo opotoka kapena osowa | Kusagwirizana kwa Protocol kapena firmware bug | Tsimikizirani zochunira zoyankhulirana ndi data |
| Chophimba choyera chopanda zinthu | Kulephera koyambitsa kapena kutaya chizindikiro | Chongani protocol config; tsimikizirani nthawi yokonzanso |
| Chithunzi chosalekeza kapena kuwotcha-mkati | Chithunzi chokhazikika pagulu la okalamba ndichotalika kwambiri | Kuzungulira kwamphamvu; thamangani pixel-tsitsimutsani chitsanzo choyesera |
| Kukhudza sikulembetsa | Chingwe chokhudza chowonongeka kapena firmware yowonongeka | Yang'anani chingwe cha riboni; re-chiwongolero cha touch touch |
| Kukhazikitsanso mwachisawawa kapena kuyendetsa njinga zamagetsi | Kukwera kwamagetsi kapena kusakwanira kwapano | kuyeza kupezeka ndi oscilloscope; kuwonjezera chitetezo chamthupi |
Kodi Kwenikweni Chimayambitsa Kulephera kwa LCD Module ndi Chiyani?
Kuwonongeka kwa Backlight
Kuunikira chakumbuyo ndiko komwe kumachulukirachulukira-kagawo kakang'ono ka ma module a LCD. Makanema a LED amachepa pang'onopang'ono pa moyo wawo wogwirira ntchito - opanga amayenererana ndi malondaMiyezo yoyezetsa yodalirika ya JEDEC semiconductor, ndi nthawi zovoteledwa zimasiyana kwambiri pakati pa{{0}giredi ndi mafakitale-magawo amakampani. Nthawi zonse tchulani zidziwitso za gawo lanu lachidziwitso cha moyo wake wautumiki malinga ndi momwe mumagwirira ntchito, osati kuchuluka kwamakampani amtundu uliwonse.
Chiwonetsero chokhala ndi nyali yowonongeka chikudutsabe macheke amagetsi. Gululi likugwira ntchito - silingathe kutulutsa chithunzi chowoneka bwino mu kuwala kozungulira. Ngati chinsalucho chikuwoneka chovomerezeka m'chipinda chamdima koma chimakhala chosawoneka pansi pa kuyatsa kowala kwa ofesi kapena panja, kuwala kwambuyo ndi chinthu choyamba kuyesa.
⚠️ Kulakwitsa kofala:Kulipiritsa kuwala kwambuyo kocheperako pokankhira kuwala kwambiri. Izi zimafulumizitsa kuvala kwa LED ndikufupikitsa moyo wotsalira wotsalira-wopanda ulemu. Kusankha zida zokhala ndi mutu wowala koyenera kuyambira koyambira kumapewa vutolo - onani chomwe chimasiyanitsamalonda- ma module a LCDkuchokera kuzinthu zina-zaogula.
Cholumikizira ndi Mavuto a Chingwe
Zingwe za riboni, zolumikizira mbidzi, ndi zolumikizira zogulitsira zimatsika pansi pa kugwedezeka, kuyendetsa njinga zotentha, komanso kusinthasintha mobwerezabwereza. Njira yolephereka imakhala yapakatikati: kumangoyang'ana mbali zina, kugwetsa magawo owonetsera pansi pa kugwedezeka, kapena chinsalu chomwe chimagwira ntchito poyambitsa koma chimalephera kutentha. Kubwezeretsanso cholumikizira chilichonse musanayitanitsa magawo kumathetsa gawo lalikulu la madandaulo am'munda paziro.
Kupsinjika Kwachilengedwe
Kuzizira kumachepetsa kuyankha kwa kristalo wamadzi; kutentha imathandizira polarizer ukalamba ndi zomatira delamination; Chinyezi chimawononga maelekitirodi kuchokera mkati, kutulutsa magawo osoweka omwe amaipiraipira pakapita milungu. Nthawi zonse tchulani zinthu{1}}zoipitsitsa, osati zapakati. Kwa mapulogalamu m'malo ovuta,Mayankho ophatikizika a LCD okhala ndi mavoti ofananira ndi chilengedweamayenera kuunika musanatumizidwe, osati pambuyo pakulephera kwamunda.
⚠️ Kulakwitsa kofala:kuyesa zowonetsera mu labu ndikungoganiza kuti zidzachita zomwezo kunja, m'nyumba yozizira, kapena pafupi ndi gwero la chinyezi - popanda kutsimikizira kuti kalasi ya IP yovotera ndi kutentha kwake zimagwirizana ndi malo otumizira.
Nkhani Zopereka Mphamvu ndi Zolakwika Zoyendetsa
Ma spikes a Voltage amayambitsa kuwonongeka kwa driver IC. Supply ripple - Phokoso la AC pa njanji ya DC - imayambitsa kuwonongeka kosaoneka bwino, kochulukirachulukira: kukonzanso mwachisawawa, phokoso lazithunzi, ndi kufupikitsa moyo wa LED. Yang'anani tsatanetsatane wa module yanu kuti muwone mphamvu zake zovomerezeka za ripple; palibe malire onse omwe amagwira ntchito pamitundu yonse yamapaneli.
Firmware bugs ndi zolakwika za protocol ndi gulu losiyana lomwe limatsanzira kulephera kwa hardware motsimikizika. Chinsalu choyera kapena zotulukapo pambuyo posinthana ndi bolodi kapena kusinthidwa kwa mapulogalamu nthawi zambiri zimakhala zolakwika za kasinthidwe, osati gulu losweka. Kusiyanitsa uku kumafunika litikuyerekeza mawonekedwe a LCD ndi LED bar screen- matekinoloje osiyanasiyana ali ndi machitidwe osiyanasiyana komanso siginecha yolakwika.
Six-Njira Yowunikira Masitepe
Gwirani ntchito izi mwadongosolo. Imani mukangozindikira cholakwika - kusinthana kosafunikira kumawononga nthawi ndikuyambitsa zatsopano.
Khwerero 1 - Kuyang'ana ndi maso mphamvu isanayambe-kuyatsa.Yang'anani ming'alu, kutsekeka kuseri kwa gululo, zipsera zowotcha pa PCB, ndi zingwe za riboni zochotsedwa kapena zomangika. Ngati mutapeza kuwonongeka kwa thupi, musagwiritse ntchito mphamvu. Kulumikizana kwakufupi kumatha kuwononga kuwonongeka komwe kumakhala kokwera mtengo kwambiri kuposa cholakwika choyambirira.
Khwerero 2 - Tsimikizirani mphamvu yamagetsi.Gwiritsani ntchito ma multimeter pazikhomo zolowetsa mphamvu za module. Ma voliyumu omwe amavotera mapanelo a TFT ndi 3.3V, 5V, kapena 12V - yang'anani deta yanu. Kuwerenga kopitilira 5% kunja kumafunikira kufufuza. Pazovuta zapakatikati, onjezani oscilloscope kuti muwone kuchuluka kwazinthu motsutsana ndi zomwe zaloledwa ndi datasheet.
Khwerero 3 - Sungani nyali yakumbuyo.M'chipinda chocheperako, yanitsani tochi pagawo lapamwamba pamakona. Ngati mutha kupanga chithunzi chosawoneka bwino, gululi limagwira ntchito ndipo kuwala kokhako kwalephera. Mayeso amodziwa amachotsa theka la mtengo wozindikira matenda mkati mwa masekondi 10 - ndipo amagwiranso ntchito bwinobar-mawonekedwe a LCDmonga pama panel standard rectangular.
Khwerero 4 - Sinthanitsani zingwe ndi ma board mwadongosolo.Kwezani-mayeso odziwika bwino. Bwezerani chingwe cha riboni ndi gawo lotsimikizika logwira ntchito. Ngati cholakwika chikutsatira chingwe, chingwe ndiye vuto. Ngati icho chikhala ndi bolodi, bolodi ndi lotsatira. Chotsani choyamba chotsika mtengo, chofikirika kwambiri.
Khwerero 5 - Onani njira zolumikizirana.Chinsalu choyera kapena zotulutsa zowonongeka pambuyo pa kusinthana kwa bolodi pafupifupi nthawi zonse zimakhala zolakwika za kasinthidwe. Tsimikizirani kuchuluka kwa baud (UART), SPI mode (CPOL/CPHA), kapena adilesi ya I2C motsutsana ndi datha. Sitepe iyi imagwira zolakwa zambirimawonekedwe a kioskkumene ma module amasinthidwa m'munda, nthawi zambiri kuchokera ku zolemba zosakwanira.
Khwerero 6 - Tsatanizani zomwe zili pa benchi.Chiwonetsero chomwe chimagwira ntchito mu labu koma chimalephera kutumizidwa pafupifupi nthawi zonse chimakhala ndi chifukwa cha kutentha kapena kugwedezeka. Cholumikizira chomwe chili m'mphepete mwa digirii 22 chikhoza kutsegulidwa kwathunthu pa digiri ya 55. Ikani kutentha kowongoleredwa poyesa benchi - vuto lomwe limawonekera pamwamba pa kutentha kwina limazindikiritsa kukulitsa kwa kutentha ngati makinawo mwachindunji.
Konzani Kapena Kusintha? Chisankho
Kukonza kumamveka pamenecholakwikacho chimayikidwa ku chinthu chimodzi chosinthika - chingwe, backlight array, firmware update - module ndi gawo la dongosolo lomwe kufufuza m'malo kumaphatikizapo kutsika kwakukulu kapena kukonzanso, ndipo mtengo wokonzanso ndi wochepa kwambiri kuposa chipangizo chatsopano.
Kusintha kumamveka bwino pamenezizindikiro zambiri zimawonekera nthawi imodzi. Kuwala kocheperako, kuvala kolumikizira, ndi kuzunzika kwazithunzi kuwonekera palimodzi ndi chizindikiro chodalirika cha kutha kwa moyo wautumiki, palibe vuto limodzi lokhazikika. Kusinthitsa kumamvekanso ngati gawo lapano likupereka mawonekedwe abwinoko - owala kwambiri, kutentha kokulirapo, chitetezo cholowera bwino - zomwe zingachepetse kukonzanso m'tsogolo.
Musanayambe njira iliyonse, funsani mafunso asanu awa:
- Kodi iyi ndi gawo loyamba lolephera, kapena linalephera kale?
- Kodi cholakwikacho chili pa chinthu chimodzi, chosinthika?
- Kodi mtengo wonse wokonzanso - zigawo, ogwira ntchito, ndi nthawi yopuma - zikutsika pang'ono mtengo wosinthira?
- Kodi gawo lokonzedwanso lidzatha kupyola zofunikira zomwe zatsala za dongosololi?
- Kodi choloŵa m'malo chapano chili ndi malangizo abwinoko a pulogalamuyi?
Ngati mayankho atatu kapena kupitilira apo akufuna kusintha, ndiyo njira yomveka bwino. Sakatulani zonsemankhwala osiyanasiyanakapenalankhulani ndi katswiriza kufufuza. Kwa malonda ogulitsa ndi zizindikiro,masinthidwe amtundu wa LCD pazogulitsa zogulitsanthawi zambiri zimabweretsa zabwinoko-zachuma zanthawi yayitali kuposa momwe zimakhalira-pa-zosinthana.
Kusamalira Kuteteza
- Zowongolera zachilengedwe:Ikani mkati mwa gawo la kutentha ndi chinyezi, pogwiritsa ntchito{0}}zovuta kwambiri pokonzekera. M'malo achinyezi-zambiri, malo otsekedwa okhala ndi ma IP otsimikizika ndi ofunikira, osati kusamala.
- Kasamalidwe ka mphamvu:Gwiritsani ntchito zida zoyendetsedwa ndi chitetezo champhamvu cha Hardware. Pewani kuyatsa nyali zakumbuyo mosalekeza pakuwala kwambiri - kuwongolera kowala kosinthira kumachepetsa mavalidwe a LED popanda kukhudza magwiridwe antchito.
- Kuyang'anira komwe kunakonzedwa:Mwezi uliwonse - yang'anani malo olumikizirana ndikuyang'ana ngati makulidwe. Kokota - yendetsani njira yoyezetsa matenda ndikutsimikizira mphamvu yamagetsi yomwe ili mkati. Chaka ndi chaka - yang'anani kuchuluka kwa zinthu ndikuwunika mawonekedwe a delamination kapena ukalamba wa polarizer.
Zamalo anu-othandizirakutumizidwa komwe kumachitika mosalekeza-m'malo omwe muli anthu ambiri, cheke chapakota ndi mwezi ndi chomwe chimakwera kwambiri-chinthu chimodzi chokha chokonzekera.Zowonetsera zotambasula za LCD zomwe zimagwiritsidwa ntchito m'malo ogulitsiraamakumana ndi chinyontho komanso mankhwala oyeretsera omwe ndandanda yokonza nthawi zonse sangathetseretu.
Mafunso Ofunsidwa Kawirikawiri
LCD yanga ikuwonetsa chophimba choyera - kodi gululo lasweka?
Osati kwenikweni. Chotchinga choyera nthawi zambiri chimakhala cholephera kulumikizana kapena kuyambitsa kulephera kuposa kuwonongeka kwakuthupi. Tsimikizirani machunidwe a protocol - kuchuluka kwa baud, SPI mode, kapena adilesi ya I2C - ndi data ya gawoli. Izi ndizofunikira makamaka pambuyo pakusintha kwa firmware kapena kusinthana kwa bolodi pomwe zosintha mwina sizinasamutsidwe moyenera.
Kodi ndingadziwe bwanji ngati chowunikira chakumbuyo kapena gulu la LCD lalephera?
Wanitsani tochi pa zenera pamwamba pa ngodya mu chipinda chamdima. Ngati muwona chithunzi chofowoka, gululo likupanga zotuluka bwino ndipo nyali yakumbuyo yokha yalephera. Palibe chithunzi chilichonse pansi pa tochi chimatanthawuza kuti cholakwika chili pagawo, bolodi la oyendetsa, kapena njira yolumikizira pakati pawo.
Kodi chiwonetsero chothwanima chingasinthidwe popanda kusintha gawoli?
Nthawi zambiri, inde. Kugwedezeka kumayamba chifukwa cha chingwe cha riboni chosasunthika, cholumikizira cholumikizira m'mphepete mwake, kapena kuchuluka kwazinthu zambiri. Kukhazikitsanso zolumikizira ndikutsimikizira kukhazikika kwamagetsi onyamula katundu kumathetsa madandaulo ambiri osasunthika asanayambe kufunikira kosinthira.
Kodi ndizotetezeka kuyatsa pachiwonetsero chomwe chakhala chinyontho?
Ayi. Lolani kuti gawolo liume mokwanira{1}pamalo opanda chinyezi musanagwiritse ntchito magetsi. Kuyang'ana pa chiwonetsero chonyowa kumawononga dzimbiri la electrode ndi mabwalo afupiafupi omwe amatha kuwononga gululo.
Chifukwa chiyani chiwonetsero changa chimagwira ntchito pa benchi koma ndikulephera m'munda?
Zomwe zimachitika pakanthawi-zolephereka zimangochitika chifukwa cha kuchuluka kwa kutentha kwa kagwiritsidwe ntchito, kugwedezeka-kukhazikika kolumikizana ndi kolumikizira, kapena kufutukuka pakuyatsa. Fananizani malo enieni omwe amatumizidwako - kutentha, kugwedezeka, chinyezi - poyesa benchi. Kuti mupeze chitsogozo pakusankha zida za Hardware zomwe zimagwira ntchito zovuta nthawi zonse,mwachidule izi-zosankha zapamwamba zowonetsera ma LCDchimakwirira mafotokozedwe osiyanasiyana omwe amafunikira kwambiri.
Mapeto
Kulephera kwa ma module a LCD kumawerengedwa mukadziwa zoyenera kuyang'ana. Pagulu lakuda, sikirini yonyezimira, zotuluka zosawoneka bwino - mamapu aliwonse kupita ku mndandanda wazomwe zingatheke, komanso njira yowunikira yomwe imapeza vuto lenileni mwachangu kuposa kusintha zina mwachisawawa. Njira yomweyi imakuwuzaninso momveka bwino pamene kukonza kwatha ndipo m'malo mwake ndi yankho lolondola.
Ngati kulephera kwaposachedwa kwayika zida zatsopano pazomwe mukufuna, fufuzanimomwe zowonera zamakono za LCD zamalonda zikufananizira ndi zosankha zachikhalidwe, kapenaperekani funsokuti mukambirane zomwe mukufuna kugwiritsa ntchito.
