An LED-based multitouch sensor for LCD screens

Florian Echtler, Thomas Pototschnig, Gudrun Klinker

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

In recent years, a large number of multitouch sensor concepts have been presented. Particularly optical sensors are highly popular due to their versatility. However, especially camera-based systems often require a significant amount of space behind the screen and are not well suited to flatscreen-based setups. While integrated sensors for flatscreens have already been presented, they are mostly complex, expensive or both. To address these problems, a novel type of multitouch sensor is presented which extends a common LCD monitor with multitouch capabilities without significant depth requirements. The sensor consists of a homogeneous matrix of cheap, mass-produced infrared LEDs. The LCD surface remains unmodified, resulting in a pleasant haptic experience for the user.

Original languageEnglish
Title of host publicationTEI'10 - Proceedings of the 4th International Conference on Tangible, Embedded, and Embodied Interaction
Pages227-230
Number of pages4
DOIs
StatePublished - 2010
Event4th International Conference on Tangible, Embedded, and Embodied Interaction, TEI'10 - Cambridge, MA, United States
Duration: 25 Jan 201027 Jan 2010

Publication series

NameTEI'10 - Proceedings of the 4th International Conference on Tangible, Embedded, and Embodied Interaction

Conference

Conference4th International Conference on Tangible, Embedded, and Embodied Interaction, TEI'10
Country/TerritoryUnited States
CityCambridge, MA
Period25/01/1027/01/10

Keywords

  • Led sensing
  • Multitouch
  • Optical sensor
  • Sensor hardware

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