O dɛsɛw cogoya bɛ kɛ, wa u fanba bɛ se ka sɔrɔ miniti 30 kɔnɔ walima a dɔgɔyalenba kɔnɔ. Nin gafe in labɛnna gɛlɛyaw ɲɛnabɔli bɛ baara kɛ cogo min na tiɲɛ na: k’a daminɛ i bɛ se ka min ye ɛkran kan, ka sɔrɔ ka baara kɛ kɔfɛ ka taa sababu la. I mana a mara wojagokɛlaw ka LCD jiralanwfeerelikɛyɔrɔw la, pannew boli foroba kioskiw kɔnɔ, walima ka fɛnɲɛnɛmafɛnw sɛgɛsɛgɛ minnu bɛ don a kɔnɔ yiriwali waati la, sɛgɛsɛgɛli kɛcogo ye kelen ye.
Taamaʃyɛnw ɲɛfɔli teliya la
Aw bɛ baara kɛ ni nin tabali in ye i n’a fɔ aw ka filɛri fɔlɔ. Kun caman bɛ se ka taamasiɲɛ kelen bila mɔgɔ la, o la aw bɛ a furakɛ i n’a fɔ a daminɛcogo, aw kana a furakɛ i n’a fɔ jaabi laban.
| Taamaʃyɛn | A ka c’a la, a sababu ka ca | Waleya fɔlɔ |
|---|---|---|
| Écran dibi pewu, kɔkanna yeelen tɛ | Kuran tiɲɛni walima fiyɛli fiyɛlen | Aw bɛ donna-taama suman modulu pinɛw la |
| Écran on nka a bɛ fitini kosɛbɛ | Backlight tiɲɛni walima LED array dɛsɛlen | Aw bɛ kɔkanna yeelen ciriw kɔrɔbɔ aw yɛrɛ la |
| Ja fitini min bɛ ye ni lanpan dɔrɔn ye | Backlight dɛsɛ - panɛli yɛrɛ bɛ baara kɛ | Aw bɛ LED sɛrɛkiliw ni bolifɛntigi ka ciriw sɛgɛsɛgɛ |
| Ɲɛjirali min bɛ yeelen bɔ walima min bɛ manamana | Ribɔn kabɔri lafiyalen walima a ka tension min tɛ sabati | Aw bɛ ɲɔgɔndan bɛɛ sigi kokura; sɛgɛsɛgɛli kɛ supply ripple kan |
| Layini jɔlenw walima tilennenw bɛ ekran kan | Substrat karilen walima sofɛrɛ IC fili | Sɛgɛsɛgɛli ɲɛnama; swap sofɛrɛ ka pankurun |
| Karamɔgɔ minnu sɛgɛsɛgɛra walima minnu tununna | Protocole bɛnbaliya walima firmware bug | Aw bɛ kumaɲɔgɔnya sigicogo sɛgɛsɛgɛ ka kɛɲɛ ni kunnafonidilan ye |
| Écran blanc min kɔnɔkow tɛ | Daminɛ daminɛbaliya walima taamasiɲɛ bɔnɛni | A’ ye protocole config lajɛ; ka segin-ka-bɔnye waati dafa |
| Jinɛ ja basigilen walima jeni-in | Ja jɔlen bɛ kɔrɔya panneau kan ka jan kojugu | Seko ni dɔnko sɛrɛkili; run pixel-refresh sɛgɛsɛgɛli misali |
| Touch input tɛ i tɔgɔ sɛbɛn | Kabɔri magali tiɲɛnen walima firimiwɛri tiɲɛnen | Aw bɛ bandi kabɔri lajɛ; re-flash magali ɲɛminɛbaga |
| Random reset walima fanga cycling | Voltage spike walima kuran seko dafalen tɛ | Aw bɛ a sɔrɔcogo suman ni oscilloscope ye; aw bɛ surge protection fara a kan |
Mun de bɛ LCD Module dɛsɛ sababuya tiɲɛ na?
Backlight (Kɔnɔna yeelen) tiɲɛni
Backlight ye fɛn kelen-ko dɛsɛ ye min ka teli ka kɛ LCD moduluw kɔnɔ. LED sɛrɛkiliw bɛ dimi dɔɔnin dɔɔnin u ka baarakɛ waati kɔnɔ - dilannikɛlaw bɛ se ka fɛnw kɛ ka kɛɲɛ niJEDEC semikɔndukiri dannaya sɛgɛsɛgɛli sariyaw, ani ɲɛnamaya waati jatebɔlenw bɛ danfaraba don kunmabɔnafolo-kalanso ni izini-kalanso panɛliw cɛ. Aw ye aw ka modulu kɛrɛnkɛrɛnnen ka kunnafonisɛbɛn lajɛ tuma bɛɛ a ka baarakɛta hakɛ jateminɛlen na aw ka baarakɛcogo la, aw kana kɛ izini jate ye min bɛ kɛ ni fɛn bɛɛ ye.
Display min kɔkanna yeelen tiɲɛna, o bɛ tɛmɛ hali bi kuran sɛgɛsɛgɛliw fɛ. Panɛli bɛ baara kɛ - a tɛ se dɔrɔn ka ja kalanta dɔ bɔ kɛnɛ kan min bɛ kɛ cogo la min bɛ kɛ cogo la. Ni ekran bɛ i n’a fɔ a bɛ sɔn ka kɛ so kɔnɔ min ka dɔgɔ, nka a bɛ ɲini ka kɛ fɛn yebali ye biro yeelen jɛlen kɔrɔ walima kɛnɛma, kɔfɛlan ye fɛn fɔlɔ ye min ka kan ka kɔrɔbɔ.
⚠️ Misali min bɛ kɛ tuma caman na:ka kɔkanna yeelen min bɛ dɔgɔya, o musaka kɛ ni yeelen gɛlɛyali ye fo ka se a dan na. O bɛ LED sɛgɛn teliya ani ka nafa tɔ surunya fɛn dɔ la min bɛ kaban-. Fɛnɲɛnɛma sugandili ni yeelen kunkolo yɔrɔ bɛnnen ye kabini a daminɛ na, o bɛ gɛlɛya in tanga pewu - a lajɛ min bɛ danfara donjagokɛla-grade LCD moduluwka bɔ consumer-grade alternatives la.
Jɛɲɔgɔnya ni Kabɔri Gɛlɛyaw
Ruban kabɔriw, zebra kafolanw ani solder joints bɛ tiɲɛ ni yɛrɛyɛrɛ ye, ni thermal cycling ye, ani ka segin-ka-bɔnye kɛ. Dɛsɛ cogoya bɛ se ka kɛ tuma bɛɛ: a bɛ yeli kɛ yɔrɔ dɔw la, jiralan yɔrɔw bɛ bin yɛrɛyɛrɛ kɔrɔ, walima ɛkran min bɛ baara kɛ a daminɛ na nka a bɛ dɛsɛ baarakɛcogo funteni na. Ni i ye ɲɔgɔndan bɛɛ sigi kokura sani i ka yɔrɔw komandi, o bɛ foro ɲininkaliw tilayɔrɔba dɔ ɲɛnabɔ ni musaka zeru ye.
Lamini degun
Nɛnɛ bɛ kristalɛ jilama jaabi sumaya; funteni bɛ polarizer kɔrɔya teliya ani adhesive delamination; nɛnɛ bɛ elekitorodew sɔgɔ ka bɔ kɔnɔna na, ka jiralan yɔrɔw bɔ minnu tununna, minnu bɛ juguya dɔɔni dɔɔni dɔgɔkun caman kɔnɔ. Aw bɛ a ɲɛfɔ tuma bɛɛ ko jugubaw-ko cogoyaw kama, aw kana a fɔ ko danmadɔw. Walasa ka baara kɛ sigida minnu na, minnu ka gɛlɛn, .LCD jiracogo ɲɛnabɔcogo jɛlenw ni sigida jateminɛw bɛ bɛn ɲɔgɔn manafa ka bon ka jateminɛ kɛ sani u ka bila sen kan, a tɛ kɛ foro dɛsɛ kɔfɛ.
⚠️ Misali min bɛ kɛ tuma caman na:ka jiralan dɔ kɔrɔbɔ laboratuwari cogoyaw la ani k’a miiri ko a bɛna o ɲɔgɔn kɛ kɛnɛma, nɛnɛyɔrɔ la, walima jibɔyɔrɔ dɔ kɛrɛfɛ - k’a sɔrɔ i ma a sɛgɛsɛgɛ ko modulu ka IP kalasi jatebɔlen n’a funteni hakɛ bɛ bɛn tiɲɛ na baarakɛcogo sigida ma.
Kuranko koɲɛw ani bolifɛntigiw ka filiw
Voltage spikes bɛ kɛ sababu ye ka bolifɛntigi ka IC tiɲɛ joona. Supply ripple - AC mankan min bɛ DC rail - kan, o bɛ tiɲɛni nɔgɔlen caman lase, tiɲɛni min bɛ kɛ ɲɔgɔn fɛ: lasegincogo k’a sɔrɔ a ma kɛ cogo si la, ja mankan, ani LED ɲɛnamaya surunya. Aw ye aw ka modulu ka kunnafonidilan lajɛ walasa a ka ripple voltage hakɛ min bɛ se ka kɛ; diɲɛ bɛɛ ka dantigɛli tɛ yen min bɛ tali kɛ panɛli suguya bɛɛ la.
Firmware bugs ani protocol mismatches ye kulu danfaralen ye min bɛ hardware failure ladege cogo la min bɛ mɔgɔ dalen to. Écran finman walima bɔli scrambled board swap walima software update kɔfɛ, a ka c’a la kosɛbɛ o ye configuration fili ye, a tɛ panneau karilen ye. O danfara in nafa ka bon tuma min naka LCD ni LED bar ekran cogoyaw suma ɲɔgɔn na- fɛɛrɛ suguya wɛrɛw bɛ ni protocol kɛcogo ni fili siginiden wɛrɛw ye.
Six-Taabolo Sɛgɛsɛgɛli taabolo
Aw bɛ baara kɛ ni ninnu ye ka kɛɲɛ ni ɲɔgɔn ye. I jɔ dɔrɔn ni i ye fili - swaps kunntanw tiɲɛ waati tiɲɛ ani ka fɛn kuraw don a kɔnɔ.
Taabolo 1 - Sɛgɛsɛgɛli ɲɛnama ka sɔrɔ ka fanga-da.Aw bɛ kariw ɲini, ka panɛri kɔfɛ, ka jeninida taamasiɲɛw lajɛ PCB kan, ani ka ribɔn kabɔriw wuli walima ka kirin. Ni aw ye farikolo tiɲɛni sɔrɔ, aw kana fanga kɛ. Jɛɲɔgɔnya surun bɛ se ka kɛ sababu ye ka tiɲɛni kɛ kaskada la min sɔngɔ ka bon kosɛbɛ ka tɛmɛ fili fɔlɔ kan.
Taabolo 2 - A’ ye donna tension (donna tension) sɛgɛsɛgɛ.Aw bɛ baara kɛ ni multimètre ye modulu ka fanga dondaw pinɛw la. TFT pannew ka tension hakɛ danmadɔw ye 3.3V, 5V, walima 12V ye - i ka kunnafonisɛbɛn lajɛ. Kalan min ka ca ni 5% ye spec kɔkan, o bɛ sɛgɛsɛgɛli wajibiya. Ni filiw bɛ kɛ tuma ni tuma, aw bɛ oscilloscope dɔ fara a kan walasa ka supply ripple lajɛ ka kɛɲɛ ni datasheet ka dantigɛli ye min bɛ se ka kɛ.
Taabolo 3 - Aw bɛ kɔkanna yeelen bɔ ɲɔgɔn na.So min tɛ fin, aw bɛ lanpan dɔ yeelen panɛri sanfɛla la ni kɛrɛ ye. N’i bɛ se ka ja fitini dɔ bɔ, panneau bɛ baara kɛ ani kɔfɛlan dɔrɔn de ma ɲɛ. Nin sɛgɛsɛgɛli kelen in bɛ sɛgɛsɛgɛli jiri tilancɛ bɔ sekɔndi 10 jukɔrɔ - ani a bɛ baara kɛ cogo kelen na a kanbar-format LCD jiralanwi n’a fɔ a bɛ kɛ cogo min na panɛri rectangulaire standardw kan.
Taabolo 4 - Ka kabali ni pankurunw ɲɔgɔn falen-falen cogo la.Kɔrɔbɔli kɛcogo ɲuman dɔnta dɔ doni. Aw bɛ bandi kabɔri falen ni baarakɛminɛn ye min sɛgɛsɛgɛra. Ni fili tugura kabali kɔ, kabali de ye gɛlɛya ye. Ni a tora ni pankurun ye, pankurun bɛ tugu o kɔ. Aw bɛ a yɔrɔ min sɔngɔ man gɛlɛn, min bɛ se ka sɔrɔ kosɛbɛ, aw bɛ o falen fɔlɔ.
Taabolo 5 - Aw ye kumaɲɔgɔnya protocole lajɛ.Écran finman walima bɔli nɔgɔlen board swap kɔfɛ, a bɛ se ka fɔ ko o ye configuration fili ye tuma bɛɛ. Aw bɛ baud rate (UART), SPI mode (CPOL/CPHA), walima I2C ladɛrɛsi sɛgɛsɛgɛ ka kɛɲɛ ni datasheet ye. O sen in bɛ filiw tilayɔrɔba dɔ minɛ min tɛ bɛn ɲɔgɔn makiosk jiracogo sigidawyɔrɔ min na moduluw bɛ wuli foro kɔnɔ, tuma caman na ka bɔ sɛbɛnw dafalenw na.
Taabolo 6 - Foro cogoyaw lasegin sigilan kan.Display min bɛ baara kɛ laboratuwari kɔnɔ nka a tɛ se ka baara kɛ ni a ye, a bɛ se ka fɔ ko tuma bɛɛ, o ju bɛ sɔrɔ funteni walima yɛrɛyɛrɛ sababu la. ɲɔgɔndan min bɛ dankan na degere 22 la , o bɛ se ka da pewu degere 55 la . Aw bɛ funteni kɔrɔsilen kɛ banbali sɛgɛsɛgɛli waati - fili min bɛ bɔ funteni dɔ sanfɛ, o bɛ funteni bonya jira iko fɛɛrɛ tilennen.
Dilan walima ka fɛn falen? Desizɔnw tacogo dɔ
Dilan bɛ kɛ cogo la tuma min nafili bɛ sigida la yɔrɔ kelen na min bɛ se ka fɛn wɛrɛ bila a nɔ na - kabali, kɔkanna yeelenbɔlan, firimiwɛri kurayali - modulu ye sistɛmu dɔ ye min kɔnɔ, fɛn wɛrɛ sɔrɔli bɛ kɛ ni jɔliba ye walima ka a labɛn kokura, wa a jɛlen don ko dilan musaka ka dɔgɔ ni fɛn kura ye.
Fɛn caman cili bɛ kɛ fɛn ye min bɛ se ka kɛ nitaamasiɲɛ caman bɛ bɔ waati kelen na. Kɔfɛ yeelen fitini, ɲɔgɔndan sɛgɛn, ani ja ghosting bɔli ɲɔgɔn fɛ, o ye baara laban jiralan ye min bɛ se ka da a kan, a tɛ fili kelen ye min bɛ se ka labɛn. Yɛlɛma fana bɛ kɛ ni sisan modulu dɔ bɛ fɛn ɲɛfɔcogo ɲumanw di - yeelen ka bon, baarakɛcogo funteni ka bon, dondaw lakanani ɲuman - min bɛna dɔ bɔ ladonni doni nataw la.
Sani i k’i yɛrɛ bila sira fila la kelen na, i ka baara kɛ ni nin ɲininkali duuru ninnu ye:
- Yala nin ye unit ka dɛsɛ fɔlɔ ye wa, walima a dɛsɛra ka kɔrɔ wa?
- Yala o fili bɛ dan yɔrɔ kelen dɔrɔn ma, min bɛ se ka fɛn wɛrɛ bila a nɔ na wa?
- Yala dilan musaka bɛɛ lajɛlen - yɔrɔw, baarakɛlaw, ani jɔli waati - bɛ to ka jɛya fɛn falen musaka jukɔrɔ wa?
- Yala yɔrɔ min dilanna, o bɛna mɛn tiɲɛ na, ka tɛmɛn sistɛmu ka baarakɛcogo tɔ kan wa?
- Yala sisan fɛn min bɛna bila a nɔ na, o bɛ fɛn dɔw di minnu ka fisa ni kɔrɔ ye nin baarakɛminɛn in na wa?
Ni jaabi saba walima ka tɛmɛ o kan bɛ fɛn wɛrɛw bila u nɔ na, a ka c’a la, o de ye sira jɛlen ye. Aw ye a bɛɛ lajɛlen lajɛfɛn dilannenw suguya camanwalimakuma ni dɔgɔtɔrɔ kɛrɛnkɛrɛnnen dɔ yesourcing ko la. Ka ɲɛsin feerelikɛyɔrɔw ni taamasiyɛnw cogoyaw ma, .LCD labɛncogo minnu bɛ kɛ ka kɛɲɛ ni mɔgɔw sago ye feerelikɛyɔrɔ taamasiyɛnw kamatuma caman na, sɔrɔko kuntaalajan-kan fisaman di ka tɛmɛ i n’a fɔ-ɲɔgɔnna tilennen-like swap kan.
Ladonni min bɛ kɛ ka bana kunbɛn
- Lamini kɔlɔsili: 1.1.Aw bɛ a bila senkan modulu ka funteni ni nɛnɛ hakɛ dantigɛlen kɔnɔ, ka baara kɛ ni ko jugubaw-ko cogoyaw ye walasa ka boloda. Ni nɛnɛ ka bon-yɔrɔ minnu na, da tugulenw ni IP hakɛ sɛgɛsɛgɛlenw ye wajibi ye, a tɛ kɛ fɛɛrɛ ye.
- Seko ni dɔnko ɲɛnabɔli:Aw bɛ baara kɛ ni fɛnw ye minnu bɛ labɛn ni fɛnɲɛnamafagalanw ka wulicogo lakanani ye. Aw ye aw yɛrɛ tanga kɔfɛlanw boli ma tuma bɛɛ ni yeelen hakɛ cayalenba ye - yeelenko kɔlɔsili ladamuni bɛ dɔ bɔ LED sɛgɛn na k’a sɔrɔ nɔ ma ye baarakɛcogo la.
- Sɛgɛsɛgɛli minnu bolodara:Kalo o kalo - ka ɲɔgɔndan sigiyɔrɔ lajɛ ani ka kondensiyɔn ɲini. Kalo saba o kalo saba - bɛ sɛgɛsɛgɛli kɛcogo dɔ boli ani ka fɛnw dilancogo sɛgɛsɛgɛli kɛ doni kɔrɔ. San o san - ka supply ripple lajɛ ani ka optique layers sɛgɛsɛgɛ ni delamination walima polarizer kɔrɔbayali tɛ.
Kosɔnyɛrɛ-baarakɛyɔrɔbaarakɛcogo minnu bɛ boli ka taa a fɛ -sirako caman na, kalo saba sɛgɛsɛgɛli ye ladonni baara kelen ye min nafa ka bon-.LCD ɛkran sɔgɔlenw minnu bɛ kɛ suguba sigidaw laka ɲɛsin kɛrɛnkɛrɛnnenya la nɛnɛ ni saniya furaw ma minnu ladonni waatibolodacogo jɔnjɔnw tɛ se ka ɲɛnabɔ ka ɲɛ.
Ɲininkali minnu bɛ kɛ tuma caman na
N ka LCD bɛ ekran finman jira - yala panneau karilen don wa?
A tɛ kɛ wajibi ye. Ekran finman ka teli ka kɛ kumaɲɔgɔnya walima daminɛko dɛsɛ ye ka tɛmɛ farikolo tiɲɛni kan. Aw ye protocole configuration - baud rate, SPI mode, walima I2C ladɛrɛsi - sɛgɛsɛgɛ ka kɛɲɛ ni module ka datasheet ye. O bɛ tali kɛ kɛrɛnkɛrɛnnenya la firimiwɛri kurayali walima board swap kɔfɛ yɔrɔ min na a bɛ se ka kɛ ko settings ma wuli ka ɲɛ.
Ne bɛ se k’a dɔn cogo di ni kɔfɛlan walima LCD panneau tiɲɛna?
Aw bɛ lanpan yeelen bɔ ekran sanfɛla la ni kɛrɛ ye so kɔnɔ min tɛ jɛya. Ni aw bɛ se ka ja fitini ye, panneau bɛ bɔli kɛ ka ɲɛ ani kɔkanna yeelen dɔrɔn de ma ɲɛ. Ja si tɛ lanpan jukɔrɔ fewu, o kɔrɔ ye ko fili bɛ pankurun na, bolifɛntigi ka pankurun na, walima taamasiyɛn sira la u ni ɲɔgɔn cɛ.
Yala jiralan min bɛ yeelen bɔ, o bɛ se ka labɛn k’a sɔrɔ a ma modulu bila a nɔ na wa?
A ka c’a la, ɔwɔ. Fɔɔnɔ ka teli ka sɔrɔ bandi kabɔri lajɔlen fɛ, solder joint marginal fɛ, walima supply ripple tɛmɛnen fɛ. Ka ɲɔgɔndanw sigi kokura ani ka fɛnw dilancogo tension sabatili sɛgɛsɛgɛ doni kɔrɔ, o bɛ flickering ɲininkali fanba ɲɛnabɔ sani a ka kan ka kɛ ni components caman cili ye.
Yala farati tɛ ka fanga di jiralan dɔ kan min bɛ ji la wa?
Ayi, aw bɛ a to modulu ka ja pewu yɔrɔ la min nɛnɛ ka dɔgɔn -yɔrɔ la sani aw ka fanga kɛ. Ni i bɛ jiralan ɲiginnen dɔ da, o bɛ farati lase elekitorode sɔgɔli ma ani kurukuruniw ma minnu bɛ se ka pankurun tiɲɛ kudayi.
Mun na ne ka jirali bɛ baara kɛ banbali kan nka a bɛ dɛsɛ foro la?
Foro min bɛ kɛ tuma ni tuma-dɔrɔn dɛsɛw bɛ sɔrɔ tuma bɛɛ funteni bonya fɛ baarakɛyɔrɔ funteni na, yɛrɛyɛrɛ-min bɛ kɛ sababu ye ka jɛgɛnsira tigɛtigɛ, walima jikuruw bɔli daminɛ waati. Aw bɛ segin sigiyɔrɔ yɛrɛ la - funteni, yɛrɛyɛrɛ, nɛnɛ - banbali sɛgɛsɛgɛli waati. Walasa ka bilasirali sɔrɔ fɛnɲɛnamafagalanw sugandili kan minnu bɛ ko gɛlɛnw ɲɛnabɔ cogo basigilen na,nin lajɛba in ye LCD jiracogo sugandilenw kan minnu bɛ baara kɛ kosɛbɛbɛ danfara minnu bɛ danfara minnu kan, olu ɲɛfɔ, minnu nafa ka bon kosɛbɛ.
Kuncɛli
LCD modulu dɛsɛw bɛ se ka kalan ni i y’a dɔn i ka kan ka min ɲini. Panɛli dibiman dɔ, ɛkran min bɛ manamana, bɔli nɔgɔlen - kelen-kelen bɛɛ bɛ karti ka taa sababuw lisɛli la min bɛ se ka ɲɛnabɔ, ani sɛgɛsɛgɛli kɛcogo sigilen bɛ fili yɛrɛ sɔrɔ joona ka tɛmɛ yɔrɔw falenni kan k’a sɔrɔ a ma kɛ cogo si la. O kɛcogo kelen in fana b’a fɔ i ye ka jɛya ni dilan kɛra a ka sira kan ani ni fɛn wɛrɛ bilali ye jaabi ɲuman ye.
Ni kɔsa in na dɛsɛ dɔ ye fɛnɲɛnamafagalan kura bila i ka agenda kɔnɔ, i ka sɛgɛsɛgɛli kɛcogo min na bi jagokɛla LCD ekranw bɛ tali kɛ laadala jiracogo suganditaw la, walimaɲininkali dɔ bila sen kanwalasa ka baro kɛ i ka ɲinini wajibiyalen kɛrɛnkɛrɛnnenw kan.
