Tsim kev txiav txim siab rau capacitive touch screen systems

Jun 09, 2021

Tso lus

Raws li cov neeg siv khoom siv sib txuas lus txawb tau nce zuj zus siv cov txheej txheem digital thiab sib xyaw ua haujlwm ntau dua, kev txhim kho ntawm cov neeg siv khoom siv tau yooj yim thiab tsim kho tshiab (UI) cov kev daws teeb meem tau dhau los ua qhov tseem ceeb rau kev tsim khoom siv. Raws li ib feem ntawm tus neeg siv interface tsim, projected capacitive touch screens pab kom ua tau raws li qhov kev sib tw no.

Txhawm rau tsim qhov projected capacitive touch screen system, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xav txog cov txheej txheem tsim, kev xaiv substrate thiab cov neeg siv interface ntawm lub cuab yeej. Tsis tas li ntawd, nyob rau txhua theem ntawm tus txheej txheem tsim, ib tug yuav tsum tsis txhob hnov ​​qab txog kev lag luam tawm ntawm tus nqi thiab kev siv tshuab.

Sib txawv los ntawm kev siv lub tshuab kov lub ntsej muag, qhov projected capacitive touch screen yog yooj yim dua los tuav cov ntiv tes taw, tshwj xeeb tshaj yog cov neeg siv kov ntau cov tswv yim. Resistive thev naus laus zis yuav tsum tau tso siab rau cov ntiv tes siab kom ua hluav taws xob sib cuag nrog ntau txheej txheej txheej ntawm lub vijtsam kov.

Txoj kev ua haujlwm no yuav cuam tshuam rau qhov ua tau zoo ntawm cov ntiv tes zawv zawg thiab qhov dexterity ntawm kev ua haujlwm ntawm tes. Tsis tas li ntawd, cov txheej txheem ntawm cov txheej txheem ntau yam ntawm cov tshuaj tiv thaiv kov yog nquag hnav thaum ntxov vim rov siv dua.

Ob peb qhov kev sib tham sib kov tau siv nrog qhov projection kov npo suav nrog ntiv tes pinching, zooming, ob ntiv tes zawv zawg thiab tig. Lawv tuaj yeem ua cov ntaub ntawv, cov ntsiab lus thiab cov neeg siv tsis tau sai thiab yooj yim. Portable games thiab ntawv nyeem / email tuaj yeem ua kom zoo dua ntawm cov cuab yeej kov ntau. Hauv cov txheej txheem kov ntau tus ntiv tes, multi-touch APA (tag nrho-point addressable) hom tuaj yeem txiav txim siab qhov chaw sib koom tes nias ntawm txhua tus ntiv tes.

Tsis tas yuav nias Shift los hloov cov cim teeb thiab tom qab ntawd nkag rau cov cim tiag. Multi-kov tuaj yeem nyem ua haujlwm ntxiv rau cov cim tiag tiag tib lub sijhawm. Multi-kov txoj kev kuj tau siv dav hauv GPS navigation. Tsis tas yuav nkag mus rau qhov chaw pib thiab qhov chaw, APA tuaj yeem paub qhov kev xaiv ntawm lub hom phiaj ntawm qhov screen, tso cai rau tib neeg mus txog qhov chaw sai dua. Daim duab 1 qhia txog qee qhov xwm txheej ua tau rau kev ua haujlwm ntau kov.


Txhawm rau ntsuas qhov kev tsim kho tshuab ntawm ib lub cuab yeej, ntau qhov teeb meem tseem ceeb yuav tsum tau daws:

1. Puas yog txheej tiv thaiv (kov nto) tiaj tus lossis nkhaus?

Nws yog feem ntau pom zoo kom nruab ib lub capacitive touch screen ntawm lub tiaj tus kov. Curved nto ntxiv complexity. Yuav kom ua tiav lub zog capacitive kov tsim, pob tshab kov sensor yuav tsum tau zoo zoo clamped hauv qab txheej tiv thaiv. Txhua cov npuas npuas tsim los ntawm qhov tsis sib xws yuav txo qhov kev ua haujlwm kov thiab cuam tshuam rau kev zoo nkauj ntawm cov khoom.

Cov txheej tiv thaiv nkhaus tsuas tuaj yeem siv PET (polyester) ua lub hauv paus ntawm qhov kov sensor. Cov yas sensor tuaj yeem khoov kom haum rau cov duab ntawm cov txheej tiv thaiv. Yog tias koj yuav tsum siv cov txheej txheem nkhaus, los ntawm qhov kev xav ntawm kev xav, nws raug pom zoo tias qhov curvature tsis tshaj 45 degrees. Qhov kev nce hauv curvature yuav ua rau muaj kev nyuaj siab ntawm cov txheej txheem nias thiab tuaj yeem ua rau cov qauv ITO (Indium Tin Oxide), uas yuav cuam tshuam rau cov txiaj ntsig.

Nws yog pheej yig dua los siv cov nplaum nplaum nplaum (PSA) kom paub txog kev nias, tab sis nws tsis tuaj yeem siv rau cov txheej tiv thaiv nkhaus. Txhawm rau kom zoo dua compression ncaj ncees, kim dua UV-kho tau cov nplaum yuav raug siv. UV adhesives yog kim, tab sis lawv yog ib qho yooj yim mus use, muaj ib tug nyias nplaum txheej, thiab muaj zoo heev optical zoo (pob tshab ntau dua 95 feem pua).

2. Dab tsi yog ntug dav ntawm qhov chaw tsis ua haujlwm (qhov chaw tsis pom kev) ntawm cov txheej txheem tiv thaiv?

Rau cov ntxaij vab tshaus kov nrog qhov loj me dua 4 ntiv tes (10 cm), ntug dav ntawm lub vijtsam kov yuav tsum tsis txhob nqaim dua 10mm ntawm sab ntawm tus Tsov tus tw hlau ntawm tus kov sensor, thiab sab uas nyob ib sab ntawm tus Tsov tus tw hlau yuav tsum tsis txhob ua. yuav nqaim dua 3 mm. Qhov chaw ntug no yog siv los nkaum cov ntawv nyiaj tsis-pob tshab uas txuas cov qauv ITO pob tshab rau cov tswj Circuit Court thiab zais cov tswj Circuit Court nws tus kheej. Rau cov ntxaij vab tshaus siv iav substrates, qhov dav ntawm cov npoo yuav nqaim dua, tab sis cov lus qhia saum toj no tseem pom zoo. Daim duab 2 piav qhia cov txheej txheem no.


3. Cov khoom siv twg yog siv rau txheej tiv thaiv?

Hauv thaj chaw ua haujlwm ntawm lub vijtsam kov, cov khoom siv hluav taws xob yuav tsum tsis txhob siv rau cov txheej txheem tiv thaiv thiab kev kho kom zoo nkauj.

Vim tias kev siv cov khoom siv hluav taws xob yuav tiv thaiv hluav taws xob ntawm lub capacitive sensor thiab txo qhov kev hnov ​​​​lus zoo. Lub thickness ntawm txheej tiv thaiv yuav tsum yog 1 hli los yog tsawg dua.

4. Qhov kev ncua deb ntawm lub hauv qab ntawm cov txheej tiv thaiv thiab cov kua siv lead ua kua zaub module (LCM) yog dab tsi?

Vim yog qhov loj me ntawm cov khoom siv sib txuas lus sib txuas, qhov kev ncua deb ntawm cov kua siv lead ua kua module (LCM) thiab cov txheej txheem tiv thaiv yuav tsum tau txiav txim siab. Yuav tsum muaj qhov chaw txaus los teeb tsa lub nyias kov npo sensor. Tsis tas li ntawd, yuav tsum muaj qhov sib txawv loj txaus los tiv thaiv qhov kov sensor los ntawm electromagnetic cuam tshuam los ntawm LCM. Nws raug pom zoo kom tawm qhov sib txawv tsawg kawg yog 0.5mm ntawm qhov kov sensor substrate thiab LCM.

5. Yuav ua li cas nrog electrostatic paug (ESD)?

Txhawm rau tiv thaiv cov xwm txheej electrostatic tawm los ntawm qhov tshwm sim ntawm qhov chaw kov, txoj hauv av uas tsis tshua muaj impedance yuav tsum tau teeb tsa thoob plaws tag nrho cov cuab yeej. Ib lub nplhaib hauv av muab tso rau hauv thaj tsam tsis ua haujlwm ntawm cov txheej txheem tiv thaiv yuav tsum tau siv los tiv thaiv qhov kov sensor.

Lub nplhaib hauv av tuaj yeem yog cov ntawv hlau yooj yim. Nws yuav tsum tau ua kom ntseeg tau tias muaj kev txhim khu kev qha ntawm lub nplhaib hauv av thiab lub hauv paus system ntawm lub cuab yeej.

Tom qab ua tiav qhov kev ntsuam xyuas tshuab, yuav tsum xaiv lub substrate tsim nyog rau lub vijtsam kov.

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