Lub hauv paus ntsiab lus thiab kev faib tawm ntawm Kov LCD Technology
Tso lus
Kov tshuab tau siv dav hauv cov khoom siv hluav taws xob xws li cov xov tooj ntse thiab cov ntsiav tshuaj.
Kov LCD npo technology
Kov LCD npo thev naus laus zis yog hom tshiab ntawm tib neeg-khoos phis tawj kev sib cuam tshuam cov tswv yim. Piv nrog rau cov keyboard tsoos thiab nas cov tswv yim txoj kev, kov LCD npo cov tswv yim yog ntau intuitive. Nrog rau kev paub software, kov LCD npo kuj tuaj yeem paub cov lus sau ntawv.
Txoj cai ntawm kov LCD npo
Resistive kov kua siv lead ua tshuaj ntsuam thev naus laus zis Resistive touch screen yog lub tshuab ua kua siv lead ua kua siv lub tshuab uas siv cov kev hloov hauv kev tiv thaiv los ntawm qhov chaw ntawm lub vijtsam kov LCD hloov nrog lub siab ntawm lub vijtsam, thiab cov kev hloov pauv los ntawm qhov tsis sib xws. qhov screen kom ua tiav qhov chaw tso. Qhov kev ua tau zoo ntawm cov ntxaij vab tshaus muaj cov yam ntxwv hauv qab no: ①Lawv yog ib hom kev ua haujlwm ib puag ncig uas cais tawm ntawm lub ntiaj teb sab nraud, tsis ntshai plua plav, dej vapor thiab roj. Qhov tseeb ntawm cov tshuaj tiv thaiv kov tsuas yog nyob ntawm qhov tseeb ntawm A / D hloov dua siab tshiab, yog li nws tuaj yeem ncav cuag 4096 * 4096 yooj yim. Raws li kev siv cov qauv sib txawv, qhov kov kov LCD npo tau muab faib ua plaub-xaim thiab tsib-xaim hom. Qhov saum npoo acoustic yoj (SAW) hom SAW kov LCD npo yog tsim los ntawm cov iav txheej nrog piezoelectric sensors xa thiab txais rau X thiab Y axes. Tus maub los xa hluav taws xob teeb liab mus rau lub transmitter sensor thiab hloov cov teeb liab mus rau hauv ultrasonic tsis nyob rau saum npoo ntawm iav. Los ntawm cov reflector array, cov nthwv dej no npog tag nrho kov LCD npo. Cov reflector rov qab sau thiab tswj cov nthwv dej no mus rau qhov tau txais sensor thiab hloov lawv mus rau hauv cov teeb liab hluav taws xob. Rov ua cov txheej txheem no rau txhua axis. Thaum tus neeg siv kov, ib feem ntawm propagating yoj yog absorbed. Cov cim tau txais sib xws rau X thiab Y kev tswj hwm tau muab piv nrog rau daim ntawv qhia kev faib tawm digital khaws cia txhawm rau txheeb xyuas cov kev hloov pauv thiab suav cov kev tswj hwm.
Lub kov LCD npo yog txuas rau saum npoo ntawm cov zaub thiab siv nrog rau cov zaub. Lub teeb liab analog hluav taws xob yog tsim los ntawm kev kov, thiab kev sib koom tes ntawm qhov taw tes kov yog xam los ntawm microprocessor tom qab hloov mus rau hauv cov teeb liab digital, kom tus neeg teb xov tooj' lub hom phiaj tau txais thiab ua tiav. Kov LCD cov ntxaij vab tshaus tuaj yeem muab faib ua tsib pawg raws li lawv cov hauv paus ntsiab lus: vector siab sensing hom, hom resistive, hom capacitive, hom infrared thiab nto acoustic yoj hom. Ntawm lawv, kov LCD cov ntxaij vab tshaus yog siv ntau dua hauv kev siv tswv yim. Cov tshuaj tiv thaiv kov LCD yog tsim los ntawm 4 txheej ntawm pob tshab thiab nyias, hauv qab yog txheej txheej ua los ntawm iav los yog plexiglass, thiab sab saum toj yog txheej yas uas nws sab nrauv yog hardened kom nws du thiab khawb-resistant. Nws txuas nrog rau sab sauv thiab sab hauv qhov chaw. Ob txheej yog hlau conductive txheej (OTI, indium oxide), uas yog insulated los ntawm me me pob tshab ntsiab lus cais. Thaum tus ntiv tes kov lub vijtsam, ob txheej txheej txheej txheem kov ntawm qhov kov.
Ob txheej hlau conductive ntawm kov LCD npo yog siv los ntsuas qhov kev sib koom ua ke hauv X-axis thiab Y-axis cov lus qhia, feem. Cov txheej txheem hluav taws xob siv rau kev ntsuas kev sib koom ua ke ua rau ob lub electrodes los ntawm sab laug thiab sab xis, uas yog X+ thiab X-. Cov txheej txheem hluav taws xob siv rau kev ntsuas kev sib koom ua ke coj tawm ob lub electrodes los ntawm sab sauv thiab qis kawg, uas yog suav tias yog Y+ thiab Y-. Qhov no yog cov hlau lead muaj pes tsawg leeg ntawm plaub-xaim resistive kov LCD npo. Thaum ib qho hluav taws xob tau siv rau ib khub ntawm electrodes, ib qho kev faib hluav taws xob tsis tu ncua thiab txuas ntxiv yog tsim rau ntawm txheej txheej conductive. Yog tias qee qhov hluav taws xob raug siv rau cov electrode khub hauv X kev taw qhia thiab tsis muaj qhov hluav taws xob siv rau cov electrode khub hauv Y kev taw qhia, nyob rau hauv X parallel voltage teb, tus nqi hluav taws xob ntawm kev sib cuag tuaj yeem cuam tshuam rau Y{{7 }} (los yog Y-) electrode , Los ntawm kev ntsuas qhov hluav taws xob ntawm Y+ electrode rau hauv av, X kev tswj hwm tus nqi ntawm kev sib cuag tuaj yeem paub. Ib yam li ntawd, thaum muaj qhov hluav taws xob siv rau Y electrode khub thiab tsis muaj qhov hluav taws xob siv rau X electrode khub, Y kev koom tes ntawm kev sib cuag tuaj yeem tau txais los ntawm kev ntsuas qhov hluav taws xob ntawm X+ electrode. Lub hauv paus ntsiab lus ntsuas yog qhia hauv daim duab 1.
Lub tsib-xaim kov LCD npo txawv ntawm plaub-xaim hom. Qhov sib txawv tseem ceeb yog tsib-xaim kov LCD npo ua rau plaub qhov kawg ntawm ib qho ntawm cov txheej txheem hluav taws xob raws li plaub lub electrodes, thiab lwm cov txheej txheem tsuas yog siv los ua tus ntsuas ntsuas kom tso tawm qhov hluav taws xob hauv X thiab Y cov lus qhia. Kev ntsuas yuav tsum hloov ntawm X thiab Y cov lus qhia. Y siv voltage upwards.
Classification ntawm kov LCD technology
Raws li qhov sib txawv ntawm qhov chaw ntawm lub vijtsam, kov LCD thev naus laus zis tuaj yeem muab faib ua Acoustic Pulse Recognition (APR) technology, Surface Acoustic Wave (SAW) technology, capacitive touch LCD technology, thiab resistive touch LCD technology, infrared / optical technology.
Acoustic Pulse Recognition (APR) thev naus laus zis APR muaj cov iav tsom iav los yog lwm cov khoom siv tawv tawv, nrog 4 lub piezoelectric sensors ntsia rau sab nraum qab. Lub sensor tau nruab rau ntawm ob lub kaum sab nraud ntawm thaj chaw pom thiab txuas nrog daim npav tswj hwm los ntawm kev khoov cable. Thaum tus neeg siv kov lub vijtsam LCD, tus ntiv tes lossis tus rub ntawm lub stylus thiab lub khob sib tsoo lossis rub, yog li lub suab tsis tsim. Lub yoj hluav taws xob tawm ntawm qhov chaw sib cuag thiab mus rau lub sensor, tsim hluav taws xob teeb liab nyob rau hauv feem rau lub suab yoj. Cov teeb liab no tau nthuav dav hauv daim npav tswj hwm thiab tom qab ntawd hloov mus rau cov ntaub ntawv digital. Sib piv cov ntaub ntawv nrog rau daim ntawv teev npe ua ntej khaws cia los txiav txim siab qhov twg kov lub LCD. APR yog tsim los tshem tawm cov kev cuam tshuam ib puag ncig thiab cov suab sab nraud vim tias cov xwm txheej no tsis sib xws nrog cov npe khaws cia.
Surface Acoustic Wave (SAW) tshuab SAW kov LCD npo yog tsim los ntawm cov iav txheej nrog piezoelectric sensors xa thiab txais rau X thiab Y axis. Tus maub los xa hluav taws xob teeb liab mus rau lub transmitter sensor thiab hloov cov teeb liab mus rau hauv ultrasonic tsis nyob rau saum npoo ntawm iav. Los ntawm cov reflector array, cov nthwv dej no npog tag nrho kov LCD npo. Cov reflector rov qab sau thiab tswj cov nthwv dej no mus rau qhov tau txais sensor thiab hloov lawv mus rau hauv cov teeb liab hluav taws xob. Rov ua cov txheej txheem no rau txhua axis. Thaum tus neeg siv kov, ib feem ntawm propagating yoj yog absorbed. Cov cim tau txais sib xws rau X thiab Y kev tswj hwm tau muab piv nrog rau daim ntawv qhia kev faib tawm digital khaws cia txhawm rau txheeb xyuas cov kev hloov pauv thiab suav cov kev tswj hwm.
