Automotive Segment LCD vs Standard LCD Dab tsi yog qhov txawv thiab Vim Li Cas Koj Yuav Tsum Saib Xyuas?

Xav txog qhov no: Tus neeg saib xyuas kev yuav khoom qhov chaw zoo li qhov poob zoo tag nrho- hloov pauv rau lub tsheb ntsuas pawg- tib qhov loj, tib tus pinout, tib "LCD" daim ntawv lo. Kev tsim khoom pib smoothly, units nkoj, thiab tom qab ntawd lub ntiaj teb tiag tiag hits. Nyob rau hauv lub hlis, qhov tsis ua hauj lwm tus nqi skyrocket: cov ntxaij vab tshaus mus dawb paug nyob rau hauv lub caij ntuj sov tshav kub, ntu dab nyob rau hauv lub caij ntuj no txias, thiab tag nrho cov batches raug xa rov qab nyob rau hauv warranty. Tus neeg ua txhaum? Siv tus txheej txheem neeg siv khoom-qib LCD hloov lub hom phiaj- ua automotive ntu LCD.

Cov tuam txhab tsheb tsis xaiv ntu LCD cov lus qhia ntawm lub siab nyiam. Lawv saib yooj yim, tab sis lawv tau tsim kho rau ib qho chaw hnyav tshaj plaws hauv ntiaj teb. Hauv phau ntawv qhia no, peb rhuav tshem vim li cas VA LCD Display Module Rau Tsheb ua haujlwm zoo dua li LCDs li niaj zaus- thiab vim li cas qhov txawv tseem ceeb rau koj qhov project tom ntej.

Ua ntej, Dab tsi yog "Segment LCD"?

Ib ntu LCD (tseem hu ua qhov ruaj khov- ntu lossis "duan ma" zaub) yog ib qho tshwj xeeb LCD thev naus laus zis uas cov zaub muaj qee qhov txwv tsis pub ua ntej, ntawm nws tus kheej tswj tau. Xav txog cov classic 7- ntu cov lej ntawm lub moos digital lossis lub laij lej: txhua tus lej raug tsim los ntawm teeb pom kev tshwj xeeb. Tsis muaj pixels, tsis muaj duab-tsuas yog nkig, ruaj icons, lej, lossis cov cim.

Hauv qhov sib piv, tus qauvTFT LCDlos yog dot-matrix LCD muaj ntau txhiab lossis lab tus pixels me me uas tuaj yeem tsim cov duab lossis ntawv. Segment LCDs yog qhov yooj yim dua, uas ua rau lawv muaj peb qhov zoo hauv tsheb:

Kev siv hluav taws xob tsawg heev (feem ntau tsuas yog microwatts ib ntu)

High contrast nrog tsawg heev electronics

Pob zeb- nyeem tau zoo ntawm txhua lub kaum sab xis pom thaum tsim kom raug

Koj yuav pom lawv nyob txhua qhov chaw hauv tsheb: ntsuas ntsuas ntsuas, ntsuas roj, ntsuas ntsuas kub, HVAC tswj vaj huam sib luag, thiab cov cim ceeb toom. Lawv yog cov neeg ua haujlwm nyob ntsiag to uas xa tawm sai, ci ntsa iab - cov ntaub ntawv pub dawb yam tsis muaj roj teeb los yog ua rau tus qauv tsim.

Vim li cas Automakers tsis yog siv LCDs li niaj zaus

Kev ntseeg tsis yog "zoo-rau-muaj" hauv tsheb hluav taws xob-nws yog lub neej- tseem ceeb. Lub speedometer ua tsis tiav lossis ntsuas roj tsis yog kev ntxhov siab xwb; nws tuaj yeem tsim teeb meem kev nyab xeeb thiab cov nqi lav loj heev.

Cov neeg siv khoom tsis tu ncua LCD yog ua kom zoo rau kev ua haujlwm lossis siv hauv tsev (0℃txog 50 degree, maj mam tuav). Automakers ntsib kev co tsis tu ncua, thermal shock, voltage spikes, thiab 10-15 xyoo ntawm kev pab cuam lub neej. Segment LCDs yeej ntawm no vim:

Lub zog qis dua=tsawg dua cov cua sov tsim thiab lub roj teeb lub neej ntev dua hauv cov tsheb fais fab

Yooj yim tsav circuitry=tsawg dua cov ntsiab lus ntawm kev ua tsis tiav

Tus nqi qis dua ntawm qhov ntim rau ruaj khov - cov ntaub ntawv qhia

Cov kev tshawb fawb txog kev ntseeg hauv kev lag luam tsis tu ncua qhia tau tias kev siv cov khoom tsis yog - tsheb- qib tuaj yeem ua rau qhov tsis ua hauj lwm hauv teb tau ntau heev -qee zaum los ntawm 5–10 ×- nyob rau hauv kev tsav tsheb tiag tiag. Tias yog vim li cas txawm tias qhov tshaj plaws digital cockpits tseem vam khom ntu ntu rau kev nyeem ntawv tseem ceeb.

Qhov txawv ntawm VA: Vim li cas Hom Tsis Zoo Tseem Ceeb Hauv Tsheb

Tsis yog txhua ntu LCDs yog tsim sib npaug. Tus qauv kub rau tsheb yog VA (Vertical Alignment) LCD Zaub Module Rau Tsheb hauv hom tsis zoo (dub tom qab nrog cov ntu ci).

Negative mode VA txhais tau tias:

Tom qab tsaus nti + lub teeb - xim ntu (feem ntau yog dawb lossis amber thaum rov qab)

Exceptionally high contrast ratio (often >1000:1)

Lub hnub ci nyeem tau zoo heev thaum ua ke nrog lub teeb pom kev zoo

Nov yog yuav ua li cas nws stacks tawm tsam ntau hom TN zoo:

VA thev naus laus zis kho cov kua siv lead ua kua vertically rau cov qib siab dub thiab qhov sib txawv - raws nraim qhov koj xav tau thaum lub hnub ci ntws los ntawm lub qhov rais. Qhov zoo- hom TN cov lus qhia (teeb tom qab lub teeb, ntu tsaus) yuav zoo li pheej yig dua ntawm daim ntawv, tab sis lawv dhau los ua tsis yooj yim nyeem nyob rau hauv lub teeb ci, yuam cov neeg tsav tsheb squint lossis cia siab rau kev kwv yees.

Qhov kub thiab txias, kev vibration & cov khoom uas ua rau pom tseeb

Ib lub tsheb nres hauv Phoenix tuaj yeem ntaus 70℃+ sab hauv. Lub caij ntuj no pib hauv Minnesota tuaj yeem poob rau -40 degree. Ntxiv kev vibration tsis tu ncua, kev poob siab, thiab lub cav sib haum xeeb, thiab koj muaj daim ntawv qhia txog kev tuag ntxov LCD.

Automotive ntu LCDs raug ntsuas rau -40℃rau +85℃kev khiav hauj lwm ntau yam (qee qhov txuas txawm tias dav dua). Lawv dhau qhov kev sim nruj xws li:

IEC 60068-2-6 (Sinusoidal kev co)

IEC 60068-2-64 (Random vibration)

ISO 16750 txoj kev -ib puag ncig lub tsheb

Cov qauv LCDs feem ntau ua tsis tau sab nraum 0℃-50℃lossis tom qab kev vibration tsawg heev - crystals khov, polarizers delaminate, lossis kev sib txuas tawg.

Real- rooj plaub hauv ntiaj teb los ntawm Sunhingstones: Ib Lub Tsheb Tier -1 tus neeg muag khoom tau hloov los ntawm cov neeg siv khoom-qib LCDs rau peb cov kev caiVA LCD Zaub Module Rau Tsheb. Qhov tshwm sim? Teb tsis ua hauj lwm tus nqi poob ntau dua 85% hauv thawj 12 lub hlis ntawm kev tsim khoom, tshem tawm cov nqi rov qab thiab txhawb cov neeg siv khoom txaus siab. Qhov txawv tsis pom nyob rau hauv lub lab- nws tshwm rau ntawm txoj kev.

Cov ntawv pov thawj thiab qhov lawv txhais tau li cas rau koj cov khoom

Thaum koj pom cov no ntawm cov ntaub ntawv, lawv tsis yog lag luam fluff-lawv yog koj txoj cai pov hwm:

AEC-Q102: Automotive Electronics Council tus qauv tsim nyog tshwj xeeb rau cov khoom siv hluav taws xob optoelectronic (xws li LCD modules nrog backlights). Nws lav cov zaub muaj sia nyob tag nrho cov roj teeb ntawm qhov kub thiab txias, av noo, kev co, thiab kev sim lub neej yuav tsum tau ua los ntawm OEMs.

IATF 16949: Lub ntiaj teb kev tswj hwm tus qauv zoo rau cov khoom siv tsheb. Nws ua kom txhua tus txheej txheem - los ntawm cov khoom siv raw mus rau qhov kev xeem zaum kawg - tiv thaiv qhov tsis xws luag ua ntej lawv tshwm sim.

CE / RoHS / REACH: Lub hauv paus ib puag ncig thiab kev nyab xeeb ua raws li kev lag luam thoob ntiaj teb.

ESTA kev lag luam lees paub: Kev lees paub ntxiv tias cov qauv ua tau raws li qhov nyuaj tshaj plaws tiag tiag -lub ntiaj teb kev ntsuas tsheb.

Xaiv ib tus neeg muag khoom nrog cov ntawv pov thawj no txhais tau tias koj cov khoom yuav dhau OEM kev tshuaj xyuas thiab muaj sia nyob ntau xyoo hauv kev teb.

Yuav Qhia Li Cas Yog tias Koj Tau Txais Cov Khoom Zoo (Ib Tug Neeg Yuav Khoom Qhia)

Siv daim ntawv teev npe 5-point no ua ntej koj pom zoo rau txhua lub tsheb LCD zaub chaw tsim khoom:

Kev ntsuas kub: Yuav tsum yog -40℃~ +85℃yam tsawg kawg nkaus (tsis yog 0℃~ 50℃tus neeg siv khoom spec).

VA hom tsis zoo lees paub: Nug qhov sib piv piv thiab cov ntaub ntawv ntsuas hnub ci nyeem tau.

Cov ntawv ceeb toom kev vibration & poob siab: Kev thov IEC 60068 lossis ISO 16750 cov ntaub ntawv ua raws.

AEC-Q102 + IATF 16949: Tsis yog-negotiable rau cov ntim ntau lawm.

Ntev -lub sij hawm muab khoom lav: 7-10 xyoo yam tsawg kawg nkaus (cov qauv qhia tau txiav tawm sai).

Cov lus nug nug kojNtse LCD zaubHoobkas los yog kev cai tsheb LCD tsum:

"Koj puas tuaj yeem muab tag nrho AEC-Q102 daim ntawv qhia txog kev tsim nyog?"

"Dab tsi yog qhov kev khiav hauj lwm qhov kub thiab txias nyob rau hauv tag nrho cov load?"

"Koj puas tau sim cov qauv no hauv lub tsheb tiag tiag?"

Pitfall ceeb toom: Ntau tus neeg muag khoom tshaj tawm "automotive LCD" tab sis nkoj cov neeg siv khoom lag luam nrog cov ntawv nplaum dav dua ntxiv tom qab. Cov kev ntsuas zoo ib yam ntawm daim ntawv-kom txog thaum thawj qhov cua sov ntaus.

FAQ

1. Dab tsi yog qhov txawv ntawm ntu LCD thiab ib qho LCD li niaj zaus?

Segment LCDs siv taag, ntu ua ntej rau kev nyeem ntawv yooj yim (tus lej, cim). Tsis tu ncua (TFT/dot-matrix) LCDs siv pixel arrays rau cov duab thiab yees duab. Segment versions yog qis zog, pheej yig dua, thiab txhim khu kev qha rau cov ntaub ntawv ruaj khov xws li dashboards.

2. Vim li cas cov tsheb siv VA LCD zaub modules hloov cov qauv LCDs?

VA tsis zoo-mob modules xa cov kev sib piv zoo tshaj, hnub ci nyeem tau, thiab ua haujlwm tau ntev hauv qhov kub thiab txias heev -cov xwm txheej uas cov qauv LCDs ua tsis tau sai.

3. Dab tsi yog qhov ntsuas kub ntawm lub tsheb ntu LCD yuav tsum tau ua?

-40℃rau +85℃(ua haujlwm), nrog rau kev cia ntau dua. Qhov no npog txhua yam ntawm lub caij ntuj no arctic mus rau lub caij ntuj sov suab puam hauv lub tsheb nres.

4. Kuv puas tuaj yeem siv lub Smart LCD Zaub nyob rau hauv ib pawg ntsuas tsheb?

Technically yog rau prototypes, tab sis tsis yog rau ntau lawm. Cov nqi ua tsis tiav yuav ua rau ntau dua, ua rau muaj kev lav phib xaub, rov qab, thiab muaj teeb meem kev nyab xeeb.

5. Kuv tuaj yeem nrhiav tau qhov kev ntseeg siab VA LCD Zaub Module Rau Tsheb Chaw Tsim Tshuaj?

Nrhiav cov neeg muag khoom uas muaj pov thawj AEC-Q102 kev tsim nyog, IATF 16949 ntawv pov thawj, thiab cov ntaub ntawv tshawb fawb txog tsheb tiag tiag. Sunhingstones tshwj xeeb hauv kev cai tsheb -qib ntu kev daws teeb meem nrog tag nrho traceability.

6. Cov ntawv pov thawj dab tsi yuav tsum muaj lub tsheb LCD zaub?

AEC-Q102 (kev ntseeg siab), IATF 16949 (zoo system), ntxiv rau RoHS, REACH, thiab CE. Cov no xyuas kom meej cov zaub yuav muaj sia nyob tag nrho lub tsheb lifecycle.

Cov ntaub ntawv

IEC 60068 series - Cov qauv ntsuas ib puag ncig (IEC official site)

AEC-Q102 Rev A – Failure Mechanism Based Stress Test Qualification for Optoelectronic Semiconductors (Automotive Electronics Council)

TS EN ISO 16750 - Kev tsheb thauj mus los - Ib puag ncig thiab kev sim rau cov khoom siv hluav taws xob thiab hluav taws xob

Grand View Kev Tshawb Fawb - Automotive Smart Display Market Report (2022-2030 cov ntaub ntawv qhia qhov kev thov muaj zog rau cov kev daws teeb meem LCD)