Daim duab no: Koj lub tsheb tshiab cov cuab yeej ua ke yob rau hauv ntau lawm. Txhua yam tshuaj xyuas hauv chav kuaj - tus lej huv, tsis muaj zog, pom kev zoo nyob hauv tsev. Tom qab ntawd thawj pawg mus txog cov neeg siv kawg. Kev tsis txaus siab dej nyab hauv: "Kuv nyeem tsis tau lub dashboard kom meej thaum nruab hnub." Hauv paus ua rau? Cov ntu xaiv LCD tsuas tsis xa qhov sib txawv txaus nyob rau hauv lub hnub ci tiag tiag thiab lub teeb pom kev zoo.
Cov lus nug tseem ceeb ntawm txhua tus tsim tsheb tsim lub ntsej muag yog: Qhov sib piv ntawm lub tsheb li cas LCD xav tau? Cov xov tooj no tuaj qhov twg los, thiab koj ua li cas kom ntseeg tau tias koj cov khoom ua tau raws li lawv hauv daim teb?
Cov xov xwm zoo yog tias ib ntu uas tau teev tseg zoo DFSTN LCD Module tuaj yeem ntseeg tau ntaus lub hom phiaj uas ua rau cov neeg tsav tsheb muaj kev nyab xeeb thiab paub txog - txawm nyob hauv lub hnub ci ci. Nov yog qhov ncaj nraim, cov ntaub ntawv -cov lus qhia rov qab.
Vim li cas qhov sib piv piv yog ntau dua li tus lej Spec
Qhov sib piv piv tsuas yog qhov "dub-thiab- dawb txawv" uas tib neeg lub qhov muag pom ntawm cov khoom siv ntu (lossis cov cim) thiab keeb kwm yav dhau. Tus lej siab dua txhais tau hais tias cov ntsiab lus ntse dua, pom tseeb dua.
Hauv chaw ua haujlwm ntsiag to lossis hauv tsev, txawm tias qhov sib txawv me me ua haujlwm zoo. Hauv lub tsheb txav, zaj dab neeg hloov tag nrho. Lub hnub ci ncaj qha, kev cuam tshuam los ntawm lub qhov cua, thiab hloov lub teeb nrawm nrawm xav tau kev ua haujlwm siab dua. Cov kev tshawb fawb ntawm cov neeg tsav tsheb pom kev pom (xws li SAE thiab kev tshawb nrhiav pom ergonomics) qhia tias qhov sib txawv tsis txaus ua rau lub sij hawm nyeem ntawv ntev dua, qhov muag pom, thiab muaj kev pheej hmoo siab dua ntawm kev nyeem tsis raug cov ntaub ntawv tseem ceeb xws li ceev, qib roj, lossis cov cim ceeb toom.
Sib piv cov kev xav tau:
Cov khoom siv sab hauv tsev: Feem ntau siv tau ntawm 100: 1-200: 1
Muaj kev tswj vaj huam sib luag: Feem ntau 200: 1-400: 1
Automotive ntu qhia: Pom zoo 500: 1 lossis siab dua, nrog muaj zog - tshav ntuj qhov xwm txheej thawb mus rau 1000:1+ zoo sib xws ambient
Tau txais qhov sib txawv tsis raug, thiab tsis muaj qhov sib txawv ntawm lub teeb pom kev zoo lossis qhov tsim qauv tuaj yeem them rov qab. Nws yog lub hauv paus ntawm kev nyeem ntawv.
Cov Naj Npawb: Dab tsi Qhov Sib piv piv cov qauv hais rau Automotive Displays
Cov qauv kev lag luam muab kev taw qhia meej, txawm hais tias lawv tsom ntau dua rau kev ntsuas kev ua tau zoo hauv cov xwm txheej tiag tiag tshaj li ib "tus lej khawv koob."
Cov ntaub ntawv tseem ceeb suav nrog:
SAE J1757 series: Txhais kev ntsuas kev ntsuas rau cov khoom siv tsheb nrog qhov tseem ceeb ntawm kev ntsuas siab ntawm -ambient contrast ratio (diffuse skylight and direct sunlight). Nws hais tias qhov sib txawv ntawm lub hnub ci yog qhov tseem ceeb rau kev pom zoo.
ISO 15008: Qhia meej qhov sib piv yam tsawg kawg nkaus rau hauv - tsheb qhia. Rau cov teeb pom kev ncaj qha tshav ntuj, tus qauv yuav tsum muaj tsawg kawg yog 2: 1 (nrog cov txiaj ntsig siab dua pom zoo rau kev nyab xeeb thiab kev nplij siab, tshwj xeeb tshaj yog cov cim me). Hmo ntuj tej yam kev mob tsom 5: 1, hnub / twilight nyob ib ncig ntawm 3: 1. Cov no yog lub hauv paus minima - cov tswv yim tsim tsheb tsim lub hom phiaj ntau dua rau kev ua tau zoo.
Ntawm no yog ib qho piv txwv piv txwv siv lub rooj rau kev siv sib txawv:
| Daim ntawv thov | Hom sab hauv tsev zoo sib xws | Pom zoo siab -ambient (Tshav ntuj) Contrast | Sau ntawv |
|---|---|---|---|
| Cov neeg siv khoom / sab hauv LCD | 100:1 – 200:1 | Tsis tseem ceeb | Chaw ua haujlwm lossis siv hauv tsev |
| Khoom siv | 200:1 – 400:1 | 300:1+ | Tswj ib puag ncig |
| Automotive Segment LCD | 300:1+ | 500:1 – 800:1+ | VA/negative hom nyiam dua |
| Thov Tshav Dav Hlau | 400:1+ | 1000: 1 siv tau | Direct hnub + reflections |
Standard TN lossis STN cov lus qhia feem ntau poob qis ntawm kev xav tau ntawm tsheb nyob rau hauv kev tsav tsheb tiag tiag. Qhov no yog qhov uas advanced technologies nkag mus.
Dab tsi yog DFSTN, thiab Vim Li Cas Nws Thiaj Ntaus Lub Hom Phiaj Zoo?
DFSTN (Ob chav- txheej Super Twisted Nematic, qee zaum hu ua DSTN lossis dual- zaj duab xis them nyiaj STN) ua rau tus qauv STN los ntawm kev ntxiv txheej thib ob. Qhov no ua rau txhim kho qhov sib txawv, txo cov xim hloov, thiab nthuav lub kaum sab xis saib.
Kev sib piv ceev technology:
TN (Twisted Nematic): Cov thev naus laus zis yooj yim - sib piv ib puag ncig 100: 1, nqaim saib lub kaum ntse ntse, nquag ntxuav tawm.
STN (Super Twisted Nematic): Lub kaum sab xis zoo dua - qhov sib piv kwv yees li 150: 1–300: 1, txhim kho tab sis tseem txwv hauv lub teeb ci.
DFSTN (Ob chav- txheej STN): Qhov sib txawv siab tshaj plaws hauv tsev neeg - 500: 1 txog 800: 1 lossis ntau dua hauv hom tsis zoo / VA, nrog cov qib dub zoo heev.
Segment DFSTN LCD Module qhov zoo rau cov tsheb:
Qhov tsis zoo - hom (dub tom qab nrog cov ntu ci) hloov lub hnub ci ambient mus rau hauv ib qho khoom muaj nqis es tsis cuam tshuam.
Cov xim xim cov yeeb yaj kiab txo qis qhov tsis xav tau tint thiab tswj qhov sib xws ntawm qhov kub thiab txias.
Superior wide- saib kev ua tau zoo piv nrog STN yooj yim.
Nov yog ib sab ncaj qha -los ntawm- sab:
| Technology | Hom Contrast Ratio | Hnub Ci Readability | Saib lub kaum sab xis | Qhov zoo tshaj plaws Automotive Siv Case |
|---|---|---|---|---|
| TN Positive | ~100:1 | pluag | Nqaim | Yooj yim hauv tsev ntsuas |
| STN Positive | ~150:1–300:1 | Ncaj ncees | Nruab nrab | Cov vaj huam sib luag yooj yim |
| DFSTN Negative (VA) | 500:1 – 800:1+ | Zoo heev | Dav | Tsheb dashboards, EV zaub, HVAC panels |
Tias yog vim li cas DFSTN tau dhau los ua qhov kev xaiv tseem ceeb rau cov cuab yeej siv tsheb, cov ntsuas hluav taws xob hauv tsheb, thiab lub tsheb huab cua - cua txias tswj vaj huam sib luag - nws muab qhov sib piv uas xav tau yam tsis tau dhia mus rau kim dua nraaj TFT kev daws teeb meem.
Tiag -Lub Ntiaj Teb Kev Kho Mob: Kub, Kev vibration & Contrast stability
Qhov sib piv tsis yog ntsuas ntawm chav tsev kub xwb. Cov kua siv lead ua kua hloov pauv nrog cua sov thiab txias, ua rau qhov sib txawv kom poob qis hauv qhov xwm txheej hnyav.
Automotive ib puag ncig xav tau kev ua haujlwm ntawm -40℃mus rau +85℃. Ordinary STN modules feem ntau pom pom qhov sib txawv degradation ntawm qhov kub thiab txias. Cov ntaub ntawv zoo DFSTN muaj kev ruaj ntseg zoo dua nyob thoob plaws ntau yam ua tsaug rau cov txheej txheem them nyiaj siab tshaj.
Kev vibration ntxiv lwm txheej ntawm kev sib tw. Cov lus qhia yuav tsum nyob ruaj khov raws li IEC 60068 kev vibration test kom muaj sia nyob ntau xyoo ntawm txoj kev poob siab yam tsis tau poob kev ua haujlwm kho qhov muag lossis txhim kho qhov tsis xws luag.
Cov neeg siv khoom tiag tiag ntawm Sunhingstones: Lub chaw tsim hluav taws xob forklift siv cov qauv STN. Nyob rau lub caij ntuj sov kub, qhov sib piv poob qis, ua rau cov neeg ua haujlwm tsis txaus ntseeg thiab kev txhawj xeeb txog kev nyab xeeb. Tom qab hloov mus rau ib qho kev cai Segment DFSTN LCD Module, qhov sib piv tau nyob tsis tu ncua saum 500: 1 thoob plaws tag nrho qhov kub thiab txias. Cov ntawv tsis txaus siab tau poob mus rau xoom, thiab kev cia siab ntawm thaj chaw tau zoo dua.
Backlight Strategy: Yuav Ua Li Cas Ua Haujlwm Nrog Kev Sib Txawv
Qhov sib piv thiab lub teeb rov qab yog cov koom tes sib cais hauv kev nyeem tau tiag.
Cov mis mos ua tau zoo yog qhov yooj yim: Contrast × Backlight Brightness=Qhov tseeb Legibility.
Rau qhov tsis zoo -hom DFSTN, ua ke nrog siab - teeb ci LED backlights. Automotive cov lus pom zoo thaum nruab hnub feem ntau tsom 800 nits lossis siab dua kom kov yeej lub teeb pom kev zoo.
Xav txog ntxiv:
PWM dimming vs. analog dimming - PWM feem ntau muab kev tswj kom zoo dua thiab ua haujlwm zoo dua yam tsis pom flicker.
Integrated ntse backlight tswj hauvNtse LCD zaubmodules simplifies system tsim thiab xyuas kom meej kev ua tau zoo.
Thaum nrhiav khoom, sib tham txog qhov sib txawv thiab teeb pom kev zoo li qhov ua tiav kho qhov muag - tsis cais specs.
Yuav Qhia Li Cas thiab Tau Txais Txoj Cai Automotive Segment LCD
Ua raws li 5-kauj ruam kev txheeb xyuas no kom tsis txhob raug nqi yuam kev:
Txhais koj qhov chaw ib puag ncig (sab hauv tsev, ib nrab hnub, lossis tag nrho cov tshav ntuj ncaj qha).
Qhia tag nrho cov kev khiav hauj lwm kub (-40℃~ +85℃typical).
Xav tau tag nrho -kub-ntau qhov sib piv cov ntaub ntawv los ntawm tus neeg muag khoom (tsis yog chav tsev xwb- tus lej ntsuas kub).
Txheeb xyuas cov ntawv pov thawj cuam tshuam: AEC-Q102 rau optoelectronics, RoHS, REACH, thiab lwm yam raws li xav tau.
Paub meej tias ntev -lub sij hawm muab kev cog lus thiab muaj peev xwm kho tau.
Thaum hu rau aSegment DFSTN LCD ModuleChaw tsim tshuaj paus, DFSTN LCD module Hoobkas, los yog kev cai tsheb LCD tsum, nug peb cov lus nug tseem ceeb:
Koj puas tuaj yeem muab cov ntaub ntawv ntsuas qhov sib piv hauv qab simulated siab -ambient (piv txwv li, SAE J1757-style) cov xwm txheej thoob plaws qhov kub thiab txias?
Dab tsi backlight xaiv thiab qib brightness koj pom zoo rau peb qhov xwm txheej raug tshav ntuj?
Koj puas muaj pov thawj kev paub nrog cov tsheb zoo sib xws lossis kev siv tsheb, suav nrog kev vibration thiab kuaj lub neej?
ESTA muab cov saw tseem ceeb rau cov tuam txhab lag luam uas sib txuas cov kev paub meej nrog kev txhim khu kev lag luam tsheb - cov txheej txheem qib - ib txoj hauv kev uas txo cov kev pheej hmoo rau OEMs thiab cov neeg xa khoom Tier ib yam nkaus.
Tsis paub meej tias qib twg zoo ib yam lossis DFSTN teeb tsa haum rau koj qhov project? Xa koj daim ntawv spec rau peb - peb pab neeg ntawm Sunhingstones yuav tshuaj xyuas nws thiab muab cov lus pom zoo meej rau koj hauv 24 teev.
Tau txais kev tshuaj xyuas Spec Dawb lossis thov tus qauv hnub no.
FAQ
1. Dab tsi yog qhov sib piv piv tau pom zoo rau automotive ntu LCD zaub? Txhawm rau kom ntseeg tau lub hnub ci nyeem tau hauv tsheb, lub hom phiaj 500: 1 lossis siab dua (txog 800:1+ rau daim ntawv thov xav tau). Cov qauv zoo li ISO 15008 tau teeb tsa qis qis (piv txwv li, 2: 1 nyob rau hauv lub hnub ncaj qha), tab sis cov qauv tsim tawm tsom ntau dua rau kev nyab xeeb thiab kev nplij siab ntawm cov neeg siv.
2. DFSTN LCD yog dab tsi thiab nws txawv ntawm STN li cas? DFSTN (Ob chav-txheej Super Twisted Nematic) ntxiv cov khaubncaws sab nraud povtseg rau tus qauv STN, xa qhov sib txawv ntau dua (500: 1–800:1+), pom cov ces kaum zoo dua, thiab txo cov xim hloov - tshwj xeeb tshaj yog nyob rau hauv hom tsis zoo / VA.
3. Tus qauv Smart LCD Zaub puas tuaj yeem ua tau raws li qhov xav tau ntawm tsheb sib txawv?
Cov khoom siv ntse ntse feem ntau ua tsis tau. Dedicated automotive-qib ntu DFSTN LCD Modules nrog qhov tsis zoo- qauv tsim thiab dav- cov ntaub ntawv kub feem ntau yuav tsum tau ua kom tau raws li qhov tiag - lub ntiaj teb tsheb sib piv thiab kev ntseeg tau xav tau.
4. Qhov ntsuas kub li cas cuam tshuam rau LCD qhov sib piv piv rau hauv tsheb?
Kub hloov pauv hloov cov kua siv lead ua kua, ua rau qhov sib piv poob qis - qee zaum ua rau - ntawm qhov siab lossis qis qis. DFSTN cov ntaub ntawv nrog cov khaubncaws sab nraud povtseg muaj qhov sib txawv ntawm qhov sib txawv ntawm -40℃rau +85℃.
5. Kuv tuaj yeem nrhiav Segment DFSTN LCD Module chaw tsim khoom lossis lub Hoobkas nyob qhov twg?
Tshawb nrhiav cov neeg muag khoom paub txog nrog keeb kwm ntawm kev tsim tsheb, kev kuaj pom qhov muag tag nrho, thiab AEC-Q102 kev txhawb nqa. Sunhingstones tshwj xeeb hauv kev cai Segment DFSTN kev daws teeb meem rau kev siv tsheb.
6. Yuav tsum muaj ntawv pov thawj dab tsi uas yuav tsum muaj cov khoom siv tsheb LCD?
Cov tseem ceeb suav nrog AEC-Q102 (rau optoelectronic kev ntseeg tau), RoHS, REACH, thiab txhua daim ntawv thov- cov ntawv ceeb toom tshwj xeeb vibration lossis ib puag ncig. Lub sij hawm ntev - cov khoom lav lav kuj tseem ceeb heev.
Cov ntaub ntawv
SAE J1757 Series - Standard Metrology for Vehicular Displays (tsom rau siab -ambient contrast)
ISO 15008 - Txoj kev tsheb - Ergonomic yam ntawm hauv - tsheb pom kev nthuav qhia
IEC 60068 - Cov qauv ntsuas ib puag ncig (nrog rau kev co)
AEC-Q102 - Automotive Optoelectronic Kev Tsim Nyog
Sunhingstones technical resources thiab cov ntaub ntawv tshawb fawb
Yog tias koj ntu LCD tam sim no ua rau muaj teeb meem kev nyeem ntawv nruab hnub lossis koj nyob rau theem pib tsim rau lub tsheb tshiab, txoj cai DFSTN tuaj yeem daws qhov teeb meem huv si thiab raug nqi - zoo. Hu rau - peb nyob ntawm no los pab koj kom tau txais qhov sib piv (thiab kev ntseeg siab) yog thawj zaug.
