Editing Touchscreen (section)

==Development==
The development of multi-touch screens facilitated the tracking of more than one finger on the screen; thus, operations that require more than one finger are possible. These devices also allow multiple users to interact with the touchscreen simultaneously.

With the growing use of touchscreens, the cost of touchscreen technology is routinely absorbed into the products that incorporate it and is nearly eliminated. Touchscreen technology has demonstrated reliability and is found in airplanes, automobiles, gaming consoles, machine control systems, appliances, and handheld display devices including cellphones; the touchscreen market for mobile devices was projected to produce US$5 billion by 2009.<ref>{{cite web|url=http://www.abiresearch.com/press/1231-Touch+Screens+in+Mobile+Devices+to+Deliver+$5+Billion+Next+Year|archive-url=https://web.archive.org/web/20110707075202/http://www.abiresearch.com/press/1231-Touch+Screens+in+Mobile+Devices+to+Deliver+$5+Billion+Next+Year|url-status=dead|archive-date=2011-07-07|title=Touch Screens in Mobile Devices to Deliver $5 Billion Next Year &#124; Press Release|publisher=ABI Research|date=2008-09-10|access-date=2009-06-22}}</ref>{{update inline|date=September 2017}}

The ability to accurately point on the screen itself is also advancing with the emerging [[graphics tablet|graphics tablet-screen]] hybrids. [[Polyvinylidene fluoride]] (PVDF) plays a major role in this innovation due its high piezoelectric properties, which allow the tablet to sense pressure, making such things as digital painting behave more like paper and pencil.<ref>{{cite web|url=http://www.fluorotherm.com/insights-into-pvdf-innovations/|title=Insights Into PVDF Innovations|date=17 August 2015|publisher=Fluorotherm|url-status=live|archive-url=https://web.archive.org/web/20161015100123/http://www.fluorotherm.com/insights-into-pvdf-innovations/|archive-date=15 October 2016}}</ref>

TapSense, announced in October 2011, allows touchscreens to distinguish what part of the hand was used for input, such as the fingertip, knuckle and fingernail. This could be used in a variety of ways, for example, to copy and paste, to capitalize letters, to activate different drawing modes, etc.<ref>{{cite web|url=https://techcrunch.com/2011/10/19/new-screen-technology-tapsense-can-distinguish-between-different-parts-of-your-hand/|title=New Screen Technology, TapSense, Can Distinguish Between Different Parts Of Your Hand|date=19 October 2011 |access-date=October 19, 2011|url-status=live|archive-url=https://web.archive.org/web/20111020021807/http://techcrunch.com/2011/10/19/new-screen-technology-tapsense-can-distinguish-between-different-parts-of-your-hand/|archive-date=October 20, 2011}}</ref><ref>{{cite web|title=TapSense: Enhancing Finger Interaction on Touch Surfaces|url=http://www.chrisharrison.net/index.php/Research/TapSense/|access-date=28 January 2012|url-status=live|archive-url=https://web.archive.org/web/20120111095431/http://chrisharrison.net/index.php/Research/TapSense|archive-date=11 January 2012}}</ref>