Editing Touchscreen (section)

===Resistive===
{{Main|Resistive touchscreen}}
A [[resistive]] touchscreen panel is composed of several thin layers, the most important of which are two transparent electrically resistive layers facing each other with a thin gap between them. The top layer (the layer that is touched) has a coating on the underside surface; just beneath it is a similar resistive layer on top of its substrate. One layer has conductive connections along its sides, while the other along the top and bottom. A voltage is applied to one layer and sensed by the other. When an object, such as a fingertip or stylus tip, presses down onto the outer surface, the two layers touch to become connected at that point.<ref>{{Cite web|title=What is touch screen? - Definition from WhatIs.com|url=https://whatis.techtarget.com/definition/touch-screen|access-date=2020-09-07|website=WhatIs.com|language=en}}</ref> The panel then behaves as a pair of [[voltage divider]]s, one axis at a time. By rapidly switching between each layer, the position of pressure on the screen can be detected.

Resistive touch is used in restaurants, factories, and hospitals due to its high tolerance for liquids and contaminants. A major benefit of resistive-touch technology is its low cost. Additionally, they may be used with gloves on, or by using anything rigid as a finger substitute, as only sufficient pressure is necessary for the touch to be sensed. Disadvantages include the need to press down, and a risk of damage by sharp objects. Resistive touchscreens also suffer from poorer contrast, due to having additional reflections (i.e. glare) from the layers of material placed over the screen.<ref>Lancet, Yaara. (2012-07-19) [http://www.makeuseof.com/tag/differences-capacitive-resistive-touchscreens-si/ What Are The Differences Between Capacitive & Resistive Touchscreens?] {{webarchive|url=https://web.archive.org/web/20130309025853/http://www.makeuseof.com/tag/differences-capacitive-resistive-touchscreens-si/|date=2013-03-09}}. Makeuseof.com. Retrieved on 2013-08-16.</ref> This type of touchscreen has been used by Nintendo in the DS family, the [[Nintendo 3DS line|3DS family]], and the [[Wii U GamePad]].<ref>{{cite web|url=https://www.engadget.com/2011/06/13/nintendo-3ds-has-resistive-touchscreen-for-backwards-compatibili/|title=Nintendo 3DS has resistive touchscreen for backwards compatibility, what's the Wii U's excuse?|author=Vlad Savov|publisher=AOL|work=Engadget|date=13 June 2011 |access-date=29 July 2015|url-status=live|archive-url=https://web.archive.org/web/20151112064552/http://www.engadget.com/2011/06/13/nintendo-3ds-has-resistive-touchscreen-for-backwards-compatibili/|archive-date=12 November 2015}}</ref>

Due to their simple structure, with very few inputs, resistive touchscreens are mainly used for single touch operation, although some two touch versions (often described as multi-touch) are available.<ref>{{cite web|url=https://www.dush.co.jp/english/library/005/|title=Multi-touch Resistive Touchscreen with 12/15 x/y matrix|access-date=2023-04-16}}</ref><ref>{{cite web|url=https://slashgear.com/fujitsu-multitouch-resistive-touchscreens-bring-cheap-pinch-zooming-to-windows-7-notebooks-17114578/|title=Multi-touch Resistive Touchscreen with x/y matrix|access-date=2010-11-01}}</ref> However, there are some true multi-touch resistive touchscreens available. These need many more inputs, and rely on x/y multiplexing to keep the I/O count down.

One example of a true multi-touch resistive touchscreen<ref>{{cite web|url=https://www.schurter.com/en/data/download/rmt-multitouch-technology|title=Resistive-touchscreens|access-date=2023-07-08}}</ref> can detect 10 fingers at the same time. This has 80 I/O connections. These are possibly split 34 x inputs / 46 y outputs, forming a standard 3:4 aspect ratio touchscreen with 1564 x/y intersecting touch sensing nodes.