The following analysis of resistive touch screen under the realization principle.
plexiglass as a grass-roots, the surface is coated with a layer of transparent conductive layer, above the outer surface and then covered with a layer of hardened, smooth scratch-resistant plastic layer ( or tempered glass layer),http://www.global-e-world.com/Touch-Screen-LCD-Monitor/ its inner surface is also coated with a layer of transparent conductive layer, conductive layer in between the two, many small.<br> (Less than one thousandth inch) of transparent insulating isolation points separate them. Resistive touch screens in the glass surface were painted two OTI transparent conductive metal oxide layers,http://www.global-e-world.com/LCD-Monitor/ the outermost layer of OTI as a conductive coating, the second level of precision through OTI attached to the network anyway in both directions of 2.75V to 0V the voltage field, between two layers of OTI to small transparent isolated point separated. When the fingers touch the screen, usually two mutually insulated conductive layer in touch with a contact point, because of which a conductive layer connected to the Y axis 2.75V uniform voltage field, making detection of the voltage changes from zero non-zero, http://www.global-e-world.com/LCD-Monitor/7-inch.php which was connected to the state controller to detect, for A / D conversion, will be the voltage value of 2.75V can be compared with the Y-axis coordinates of the touch points, reached the same X-axis coordinates, mobile CPU simultaneous detection of voltage and current, calculates the location of touch, the response rate of 10-20ms.<br> About Author Global-e-world.com is an experienced group of internet sellers, with braches at New York, London & Hong Kong. Disclaimer: Article submitters are solely responsible for the content of their articles. ArtiLib can't be held liable for the contents of the articles. Report Abuse | Browse By Category |
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