{"id":2349,"date":"2016-08-04T18:42:01","date_gmt":"2016-08-04T18:42:01","guid":{"rendered":"https:\/\/www.newvisiondisplay.com\/ch\/?p=2349"},"modified":"2021-11-29T22:15:20","modified_gmt":"2021-11-29T22:15:20","slug":"pcap-touch-user-interfaces","status":"publish","type":"post","link":"https:\/\/www.newvisiondisplay.com\/ch\/pcap-touch-user-interfaces\/","title":{"rendered":"Single, Dual, and Multi-Touch PCAP User Interfaces"},"content":{"rendered":"\n<div class=\"wp-block-ugb-container ugb-container ugb-c291c1f ugb-container--v2 ugb-container--design-basic ugb-main-block\"><style>.ugb-c291c1f-wrapper.ugb-container__wrapper{border-radius:0px !important;background-color:#e8e8e9 !important}.ugb-c291c1f-wrapper.ugb-container__wrapper:before{background-color:#e8e8e9 !important}.ugb-c291c1f-content-wrapper > h1,.ugb-c291c1f-content-wrapper > h2,.ugb-c291c1f-content-wrapper > h3,.ugb-c291c1f-content-wrapper > h4,.ugb-c291c1f-content-wrapper > h5,.ugb-c291c1f-content-wrapper > h6{color:#222222}.ugb-c291c1f-content-wrapper > p,.ugb-c291c1f-content-wrapper > ol li,.ugb-c291c1f-content-wrapper > ul li{color:#222222}@media screen and (min-width:768px){.ugb-c291c1f > .ugb-inner-block > .ugb-block-content > *{padding-top:10px !important;padding-bottom:10px !important;padding-right:10px !important;padding-left:10px !important}}<\/style><div class=\"ugb-inner-block\"><div class=\"ugb-block-content\"><div class=\"ugb-container__wrapper ugb-c291c1f-wrapper\"><div class=\"ugb-container__side\"><div class=\"ugb-container__content-wrapper ugb-c291c1f-content-wrapper\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><svg aria-hidden=\"true\" focusable=\"false\" data-icon=\"clock\" width=\"20\" height=\"20\" fill=\"none\" stroke=\"currentColor\" style=\"display:inline-block;vertical-align:-0.1em\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\"><path stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2\" d=\"M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z\"><\/path><\/svg><\/span><span class=\"yoast-reading-time__spacer\" style=\"display:inline-block;width:1em\"><\/span><span class=\"yoast-reading-time__descriptive-text\">Estimated reading time:  <\/span><span class=\"yoast-reading-time__reading-time\">5<\/span><span class=\"yoast-reading-time__time-unit\"> minutes<\/span><\/p>\n\n\n\n<div class=\"wp-block-yoast-seo-table-of-contents yoast-table-of-contents\"><h2>Table of contents<\/h2><ul><li><a href=\"#h-1-icon-based\" data-level=\"2\">1. Icon-based<\/a><\/li><li><a href=\"#h-2-low-resolution-single-touch-gestures-in-one-direction-only\" data-level=\"2\">2. Low-resolution, single-touch, gestures in one direction only<\/a><\/li><li><a href=\"#h-3-medium-resolution-with-single-touch-and-single-and-dual-touch-gestures\" data-level=\"2\">3. Medium-resolution with single-touch and single-and dual-touch gestures<\/a><\/li><li><a href=\"#h-4-high-resolution-with-multi-touch\" data-level=\"2\">4. High-resolution with multi-touch<\/a><\/li><\/ul><\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-300x300.jpg\" alt=\"multi-touch PCAP sensor\" class=\"wp-image-6059\" srcset=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-300x300.jpg 300w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-150x150.jpg 150w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-768x768.jpg 768w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-1024x1024.jpg 1024w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-700x700.jpg 700w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-940x940.jpg 940w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/P1_S4_5-Finger-Touch-1920x1920.jpg 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">One of the biggest advantages <a href=\"https:\/\/www.newvisiondisplay.com\/ch\/products\/preci-touch\/\">projected capacitive touchscreen technology<\/a> has over other touch technologies (especially resistive touch) is the capability to support the recognition of two or more distinct touches. This is why many OEMs who design capacitive touch sensors into their products, want to have this magical feature called \u201cmulti-touch\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, very few applications actually require a user interface that supports true multi-touch. For example, I have been using a smartphone for years and I can\u2019t remember a single instance when I needed more than two fingers to operate any feature or game on that phone. Even the two-finger operation is limited to the zoom function. Therefore, it\u2019s important to consider the scope of the product\u2019s UI when designing a projected capacitive touch sensor and defining its specification. This way, OEMs can avoid designing-in an expensive touch panel, when one at a lower cost would be fully sufficient.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is an overview of the capacitive touch panel designs used in various user interfaces, and their performance related to the number of touches and supported gestures. The designs are listed according to their cost starting from lowest to highest.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-1-icon-based\"><strong><span style=\"color: #286390;\" class=\"ugb-highlight\">1. Icon-based<\/span><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This type of PCAP touch UI utilizes predefined touch areas distributed over the screen. Within these touch areas are icons that display on the screen, often in varying menu screens. Gestures such as swiping or scrolling are not supported. The corresponding sensors only require a single layer of ITO with a predefined button layout and a simple button-type controller with limited input pins depending on the number of buttons.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-2-low-resolution-single-touch-gestures-in-one-direction-only\"><strong><span style=\"color: #286390;\" class=\"ugb-highlight\">2. Low-resolution, single-touch, gestures in one direction only<\/span><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">With this type of PCAP touch UI, single touches can be sensed anywhere on the screen, not just on predefined areas. It\u2019s suitable for devices which typically don\u2019t display pictures that require a zoom feature, but still need single touch gesture support for scrolling or swiping. This type of interface is commonly found in industrial and household applications, remote controls, and consumer medical devices. Here, the sensor can also be realized by a single layer of ITO, typically employing a triangle or backgammon pattern. Reliable gesture recognition is supported by this pattern only in one direction, i.e. either vertically or horizontally. It requires a simple capacitive touch controller with the number of inputs depending on the screen size. Typically, these types of sensors are limited to approximately 4\u201d diagonal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-3-medium-resolution-with-single-touch-and-single-and-dual-touch-gestures\"><strong><span style=\"color: #286390;\" class=\"ugb-highlight\">3. Medium-resolution with single-touch and single-and dual-touch gestures<\/span><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This is a common PCAP touch user interface found on devices designed for very specific purposes, such as navigation devices, industrial, and professional medical devices. These typically feature pictures or maps that need to be zoomed but are not used for fancy games and applications. The sensor that supports such a UI typically exhibits a pattern of conductive rows and columns perpendicular to each other that are applied on a single substrate often referred to as a \u201ccaterpillar pattern\u201d. This requires an elaborate layout where the rows and columns do not intersect on the visible part of the screen. The disadvantage of this pattern is the relatively low resolution it provides. It can be applied on sensors up to 5\u201d diagonal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-4-high-resolution-with-multi-touch\"><strong><span style=\"color: #286390;\" class=\"ugb-highlight\">4. High-resolution with multi-touch<\/span><\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg\" alt=\"PCAP touch gestures\" class=\"wp-image-2352\" width=\"297\" height=\"298\" srcset=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg 593w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-150x150.jpg 150w, https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-300x301.jpg 300w\" sizes=\"auto, (max-width: 297px) 100vw, 297px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">This is the most common PCAP touch user interface found on consumer devices such as mobile phones, tablets, laptops, and automotive applications. As mentioned above, the feature of \u201cmulti-touch\u201d is not indispensable for everyday use, but sensors designed for higher resolution and larger screens practically provide this feature for free. Both high resolution and large size sensors require an ITO pattern on two different layers separated by a dielectric. This could be realized by laminating two substrates together (GG or FF), having the layers on opposite sides of the same substrate (DITO) or on the same side of a single substrate (SITO) where only the crossovers of the rows and columns of the sensing pattern are separated by an insulation layer. This 2-layer technology is the biggest cost factor that makes this sensor more expensive than the others. The only component specific to multi-touch is a controller that supports mutual capacitive sensing technology whereas a self-capacitive sensing touch controller would be sufficient for all the previously mentioned designs. However, such a controller does not contribute significantly to cost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Looking for guidance?&nbsp;<a href=\"https:\/\/www.newvisiondisplay.com\/ch\/contact-us\/\">Give us a call.<\/a> Our experienced sales team can recommend the right touch panel for your use case.<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f63-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"63\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/ch\/wp-json\/wp\/v2\/posts\/2349#wpcf7-f63-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"63\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.6\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" 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!important}.ugb-857566d .ugb-block-title{font-weight:bold !important;color:#286390}<\/style><div class=\"ugb-inner-block\"><h2 class=\"ugb-block-title\">Related Topics<\/h2><div class=\"ugb-block-content\"><article class=\"ugb-blog-posts__item\"><div class=\"ugb-blog-posts__content\"><figure class=\"ugb-blog-posts__featured-image ugb--shadow-3\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/3d-gesture-touch\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2022\/01\/3D-Gesture-Touch-Demo_Cover-Image-e1642622298764-1024x1024.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"2D\/3D Gesture Touch\" \/><\/a><\/figure><h3 class=\"ugb-blog-posts__title\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/3d-gesture-touch\/\">New Vision Display announces new 3D gesture touch technology<\/a><\/h3><\/div><\/article><article class=\"ugb-blog-posts__item\"><div class=\"ugb-blog-posts__content\"><figure class=\"ugb-blog-posts__featured-image ugb--shadow-3\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/capacitive-vs-resistive-touchscreen\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2021\/11\/Capacitive-vs-Resistive-Touch_Feature-Image3.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"capacitive vs resistive touch\" \/><\/a><\/figure><h3 class=\"ugb-blog-posts__title\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/capacitive-vs-resistive-touchscreen\/\">Projected capacitive vs resistive touch screens: What&#8217;s right for your project?<\/a><\/h3><\/div><\/article><article class=\"ugb-blog-posts__item\"><div class=\"ugb-blog-posts__content\"><figure class=\"ugb-blog-posts__featured-image ugb--shadow-3\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/pcap-touch-screen-customizations\/\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2021\/10\/PCAP-customizations-cover-drawing.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"Capacitive touch panel illustration\" \/><\/a><\/figure><h3 class=\"ugb-blog-posts__title\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/pcap-touch-screen-customizations\/\">PCAP touch screen customizations &#8211;  definitions, capabilities and applications<\/a><\/h3><\/div><\/article><article class=\"ugb-blog-posts__item\"><div class=\"ugb-blog-posts__content\"><figure class=\"ugb-blog-posts__featured-image ugb--shadow-3\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/touch-controller-tuning\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2021\/08\/Touch-Controller-scaled-e1628889713893-1024x1024.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"\" 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href=\"https:\/\/www.newvisiondisplay.com\/ch\/display-touch-system-integration\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2018\/09\/Touch-8-e1631134903227-1024x1024.png\" class=\"attachment-large size-large wp-post-image\" alt=\"Human Machine Interface\" \/><\/a><\/figure><h3 class=\"ugb-blog-posts__title\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/display-touch-system-integration\/\">Display and touch system integration<\/a><\/h3><\/div><\/article><article class=\"ugb-blog-posts__item\"><div class=\"ugb-blog-posts__content\"><figure class=\"ugb-blog-posts__featured-image ugb--shadow-3\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/standard-vs-custom-display-modules\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2020\/12\/IMG_7917-scaled-e1631134141884-1024x1024.jpg\" class=\"attachment-large size-large wp-post-image\" alt=\"Custom flex tail\" \/><\/a><\/figure><h3 class=\"ugb-blog-posts__title\"><a href=\"https:\/\/www.newvisiondisplay.com\/ch\/standard-vs-custom-display-modules\/\">Standard vs custom display modules \u2013 what\u2019s better for your project?<\/a><\/h3><\/div><\/article><\/div><\/div><\/div>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BlogPosting\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/www.newvisiondisplay.com\/ch\/pcap-touch-user-interfaces\/\"\n  },\n  \"headline\": \"https:\/\/www.newvisiondisplay.com\/ch\/pcap-touch-user-interfaces\/\",\n  \"image\": \"https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg\",  \n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"New Vision Display\",\n    \"url\": \"https:\/\/www.newvisiondisplay.com\/ch\/\"\n  },  \n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"\",\n    \"logo\": {\n      \"@type\": \"ImageObject\",\n      \"url\": \"https:\/\/mk0newvisiondis71k7o.kinstacdn.com\/wp-content\/themes\/newvision\/images\/NVD-eye-logo-white.png\"\n    }\n  },\n  \"datePublished\": \"August 4, 2016\"\n}\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>One of the biggest advantages projected capacitive touchscreen technology has over other touch technologies (especially resistive touch) is the capability to support the recognition of two or more distinct touches. This is why many OEMs who design capacitive touch sensors into their products, want to have this magical feature called \u201cmulti-touch\u201d. However, very few applications actually require a user interface that supports true multi-touch. For example, I have been using a smartphone for years and&#8230;&nbsp;<br \/> <a class=\"readmore\" href=\"https:\/\/www.newvisiondisplay.com\/ch\/pcap-touch-user-interfaces\/\">Read More<\/a><\/p>\n","protected":false},"author":5,"featured_media":2352,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1981],"tags":[],"class_list":["post-2349","post","type-post","status-publish","format-standard","has-post-thumbnail","category-pcap-touch","entry"],"featured_image_urls_v2":{"full":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false],"thumbnail":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-150x150.jpg",150,150,true],"medium":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-300x300.jpg",300,300,true],"medium_large":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false],"large":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false],"1536x1536":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false],"2048x2048":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false],"post-thumbnail":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-300x300.jpg",300,300,true],"project-thumbnails":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-300x300.jpg",300,300,true],"category-thumb":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-300x301.jpg",300,301,true],"home-thumb-med":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false],"home-thumb-small":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248-593x400.jpg",593,400,true],"home-thumb-big":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false],"slide-head":["https:\/\/www.newvisiondisplay.com\/ch\/wp-content\/uploads\/2016\/08\/shutterstock_135261248.jpg",593,595,false]},"post_excerpt_stackable_v2":"<p>Estimated reading time: 5 minutes Table of contents1. Icon-based2. Low-resolution, single-touch, gestures in one direction only3. Medium-resolution with single-touch and single-and dual-touch gestures4. High-resolution with multi-touch One of the biggest advantages projected capacitive touchscreen technology has over other touch technologies (especially resistive touch) is the capability to support the recognition of two or more distinct touches. This is why many OEMs who design capacitive touch sensors into their products, want to have this magical feature called \u201cmulti-touch\u201d. However, very few applications actually require a user interface that supports true multi-touch. For example, I have been using a smartphone for years&hellip;<\/p>\n","category_list_v2":"<a href=\"https:\/\/www.newvisiondisplay.com\/ch\/category\/pcap-touch\/\" rel=\"category tag\">PCAP Touch<\/a>","author_info_v2":{"name":"NVDisplay","url":"https:\/\/www.newvisiondisplay.com\/ch\/author\/nvdisplay\/"},"comments_num_v2":"0 comments","yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Single, Dual, and Multi-Touch PCAP User Interfaces | \u65b0\u8f89\u5f00\u79d1\u6280\uff08\u6df1\u5733\uff09\u6709\u9650\u516c\u53f8<\/title>\n<meta name=\"description\" content=\"Learn about single-, dual- and multi-touch PCAP user interfaces, and their unique benefits and challenges, from a leading PCAP manufacturer.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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