Raws li cov ntxaij vab tshaus LCD tau dhau los ua qhov tseem ceeb hauv txhua yam ntawm cov xov tooj smartphones mus rau cov tshuab ua lag luam, kev nkag siab txog lawv cov khoom tseem ceeb yog qhov tseem ceeb rau cov engineers, OEMs, thiab cov neeg yuav khoom. Txhua feem ntawm LCD pab txhawb rau nws qhov ci, pom tseeb, lub zog ua haujlwm, thiab kev ua haujlwm tag nrho.
Hauv tsab xov xwm no, peb yuav rhuav tshem cov ntsiab lus tseem ceeb ntawm LCD, piav qhia lawv ua haujlwm ua ke li cas, thiab qhia cov lus qhia rau kev xaiv cov zaub rau koj qhov project tom ntej.
Cov Cheebtsam tseem ceeb ntawm LCD
Txhua lub vijtsam LCD yog kev sib xyaw ua ke ntawm cov khoom siv kho qhov muag, hluav taws xob, thiab cov khoom siv tshuab. Cia peb tshawb txog cov ntsiab lus tseem ceeb uas ua kom tiav cov duab ua tiav.
Backlight Unit (Function, Hom, Pros & Cons)
Lub backlight yog dab tsi ua rau LCD pom. Txij li cov kua siv lead ua lawv tus kheej tsis tawm lub teeb, lub backlight muab illumination ntawm qab lub vaj huam sib luag.
Muaj nuj nqi:
Nws sib npaug faib lub teeb hla lub vijtsam LCD, tso cai rau cov neeg siv pom cov duab thiab cov ntawv kom meej meej hauv ntau yam teeb pom kev zoo.
Hom Hom:
CCFL (Cold Cathode Fluorescent Teeb):Ib zaug nrov rau cov saib thiab TVs, tab sis tam sim no hloov loj vim yog siv zog ntau dua.
LED (Lub teeb -Emitting Diode):Cov qauv niaj hnub rau LCD backlighting. LED backlights yog lub zog-npaum, compact, thiab tso cai rau nyias, ci dua cov ntxaij vab tshaus.
Pros:LED backlights muab lub neej ntev dua, kev sib piv zoo dua, thiab qis dua qhov tso tawm hluav taws xob.
Cons:Lawv tuaj yeem nce nqi me ntsis hauv qhov loj lossis siab - qhov ci ntsa iab.
Liquid Crystal Vaj Huam Sib Luag (Txoj Cai, Hom, Daim Ntawv Thov)
Covkua siv lead ua vaj huam sib luagyog lub hauv paus ntawm lub vijtsam LCD- nws tswj lub teeb xa mus los tsim cov duab.
Txoj Cai Ua Haujlwm:
Cov kua siv lead ua kua molecules tig rau hauv cov lus teb rau cov teeb liab hluav taws xob, tswj cov teeb pom kev ntau npaum li cas los ntawm cov xim lim. Cov txheej txheem no tsim cov pixels thiab cov duab koj pom ntawm qhov screen.
Main Vaj Huam Sib Luag Hom:
TN (Twisted Nematic):Tus nqi qis, teb ceev ceev, tab sis pom cov kaum sab xis.
IPS (Nyob hauv -Plane Switching):Kev pom dav dav, qhov tseeb xim zoo tshaj plaws, zoo tagnrho rau kev siv kho mob lossis kev lag luam.
VA (Vertical Alignment):High contrast ratio, haum rau cov lus qhia yuav tsum tau sib sib zog nqus dub.
Daim ntawv thov:
Los ntawm kev lag luam kov vaj huam sib luag rau tsheb dashboards, LCD vaj huam sib luag qhov kev ua tau zoo ncaj qha txiav txim siab cov duab meej, xim fidelity, thiab saib kev paub.
AD / Tsav Tsheb (Function, Interfaces, Xaiv Qhia)
CovAD (Analog{0}}Digital) lossis tsav tshebua haujlwm raws li lub hlwb ntawm lub LCD system. Nws hloov cov teeb liab tawm tswv yim (HDMI, VGA, DVI, thiab lwm yam) rau hauv cov teeb liab digital uas lub vaj huam sib luag nkag siab.
Muaj nuj nqi:
Lub teeb liab hloov pauv thiab tswj lub sijhawm
Brightness thiab xim calibration
Kov tswj interface kev koom ua ke
Common Interfaces:HDMI, VGA, DisplayPort, LVDS, thiab eDP.
Cov tswv yim xaiv:Ib txwm phim koj lub rooj tsavxwm cov ntawv tso zis rau LCD vaj huam sib luag hom thiab kev daws teeb meem. Cov ntxaij vab tshaus LCD feem ntau xav tau kev ruaj khov, qis- cov suab nrov nrov uas tuaj yeem ua haujlwm hauv qhov kub thiab txias.
Connectors thiab Interfaces (Hom, Standards, Considerations)
Cov khoom sib txuas txuas cov khoom sib txuas ua ke thiab ua kom cov teeb liab sib kis tau zoo.
Hom:
LVDS connectors(Low Voltage Differential Signaling) rau kev sib txuas hauv vaj huam sib luag
HDMI / DP connectorsrau sab nraud inputs
FFC / FPC cablesrau cov khoom siv compact
Fais fab connectorsrau voltage input thiab LED backlight tsav
Cov ntsiab lus tseem ceeb:
Xyuas kom meej connector suab thiab tus pin suav phim koj lub rooj tsavxwm
Xyuas EMI shielding thiab cable durability rau kev lag luam siv
Xaiv kub -plated los yog anti- cov ntaub ntawv corrosion rau ntev - lub sij hawm stability
Lub luag hauj lwm ntawm Txhua Cheeb Tsam
Txhua yam khoom siv hauv LCD system ua lub luag haujlwm tshwj xeeb hauv kev tsim cov duab ntse, raug, thiab ruaj khov. Cia peb saib cov txheej txheem ua haujlwm tseem ceeb tom qab txhua qhov ua tau zoo.
Kev teeb tsa
Cov theem no tswj cov kev hloov pauv ntawm cov ntaub ntawv tuaj (video signals) mus rau pixel - qib tswj cov lus txib.
High- tsav tsheb zoo ICs txo cov suab nrov thiab xyuas kom cov synchronization, tiv thaiv flicker lossis tearing.
Zaub Optimization
Lub vaj huam sib luag thiab backlight ua hauj lwm ua ke los tsim kom pom kev ci ntsa iab, qhov sib txawv, thiab xim uniformity. Advanced calibration algorithms, tej zaum embedded nyob rau hauv lub AD board, zoo -kho cov tsis tau zoo ib yam.
Fais fab mov
Lub hwj chim board muab qhov yuav tsum tau voltages rau ob lub vaj huam sib luag thiab lub backlight.
Cov ntxaij vab tshaus LCD feem ntau suav nrog kev tsim- nyob rau hauv kev tiv thaiv circuits rau ntau tshaj -voltage, tshaj -tam sim no, thiab kev tswj cua sov, kom ntseeg tau tias kev lag luam txhim khu kev qha raws li qhov xav tau.
Hom Hom thiab Qauv
Hauv kev ua lag luam niaj hnub no, ntau lub tuam txhab muab cov khoom siv LCD tsim rau cov neeg siv sib txawv. Paub txog qhov muaj zog ntawm txhua hom tuaj yeem pab koj txiav txim siab xaiv.
Nrov Ua Lag Luam Hom
AU (AU Optronics):Paub txog kev lag luam- qib LCD vaj huam sib luag nrog ntau qhov kub thiab txias.
BOE Technology:Muab siab - daws teeb meem vaj huam sib luag rau cov neeg siv khoom thiab kev tshaj lij.
Innolux / LG Display / Ntse:Dav siv nyob rau hauv kev lag luam thiab automotive zaub.
Cov yam ntxwv ua haujlwm
Cov yam ntxwv tseem ceeb ntawm kev ua haujlwm yuav tsum xav txog muaj xws li:
Brightness (nits) thiab qhov sib piv piv
Teb lub sij hawm thiab refresh npaum li cas
Saib lub kaum ntse ntse thiab xim raug
Kub kam rau siab thiab lifespan
Rau cov ntawv thov kev lag luam, kev ntseeg siab feem ntau ntau dua ultra-kev daws teeb meem siab- xaiv cov qauv uas muaj pov thawj ruaj khov thiab muaj sijhawm ntev - cov khoom siv.
Daim ntawv thov Scenario
Industrial tswj systems thiab HMI terminals
Kev kuaj mob kuaj mob
Sab nraum zoov kos npe thiab kiosks
Kev thauj mus los thiab cov khoom siv tsheb
Kev xaiv ntawm LCD Cheebtsam yuav tsum ua raws li cov kev xav tau ntawm ib puag ncig xws li kev vibration, kub, thiab pom kev nyob rau hauv tshav ntuj.
Yuav Ua Li Cas Xaiv Qhov Zoo LCD Cheebtsam
Xaiv qhov zoo LCD npo lossis cov khoom siv yog nyob ntawm koj daim ntawv thov, pob nyiaj siv, thiab kev txwv. Nov yog dab tsi los ntsuas ua ntej ua tiav koj qhov kev yuav khoom.
Kev sib piv Parameter
Xyuas kom meej tias lub rooj tsavxwm tsav tsheb, fais fab mov, thiab LCD vaj huam sib luag specifications phim zoo kawg nkaus:
Kev daws teeb meem thiab nam piv
Hom teeb liab interface (piv txwv li, LVDS vs. eDP)
Kev khiav hauj lwm voltage thiab connector compatibility
Kev tsis sib haum xeeb ntawm cov khoom tuaj yeem ua rau flickering, xim distortion, los yog kev puas tsuaj rau lub vaj huam sib luag.
Kev txiav txim siab Compatibility
Txheeb xyuas qhov ntev ntawm lub tshuab, qhov sib dhos, thiab cov lus qhia ib puag ncig.
Rau embedded systems, xav txog firmware compatibility thiab muaj cov neeg tsav tsheb software (tshwj xeeb tshaj yog rau touchscreen qauv).
Tus nqi thiab tus nqi ntsuas
Nqe yog ib qho tseem ceeb, tab sis ntev - kev cia siab rau lub sij hawm thiab cov khoom muaj tseem ceeb dua.
Kev nqis peev ntau dua me ntsis hauv kev lag luam - qib LCD npo tuaj yeem txo cov nqi kho thiab kev poob qis thaum lub sijhawm.
Xaus & CTA: Txhim kho koj cov kev ua tau zoo
Txhua lub vijtsam LCD-txawm yog nyob rau hauv lub vaj huam sib luag tswj kev lag luam lossis lub tshuab muag khoom- nyob ntawm kev sib haum xeeb ntawm nws cov khoom. Los ntawm lub teeb rov qab mus rau pawg tsav tsheb, txhua qhov ua rau muaj kev pom tseeb, kev ntseeg siab, thiab kev paub ntawm cov neeg siv.
Yog tias koj tab tom nrhiav kev cai LCD cov ntxaij vab tshaus lossis cov kev daws teeb meem kev lag luam, HENGSTAR muab OEM / ODM cov lus pom zoo rau qhov chaw hnyav thiab siab - daim ntawv thov kev ua tau zoo.
Tiv tauj peb hnub no kom paub seb peb cov tshuab LCD tuaj yeem ua rau koj qhov kev tsim kho tshiab tom ntej.
24 Nti Qhib Ncej Vaj Huam Sib Luag Pc