Three-Dimensional Virtual Touch Display System for Multi-User Applications

Author

Yi-Pai Huang ; Guo-Zhen Wang ; Tian-Sheuan Chang ; Tsu-Han Chen

Author_Institution

Dept. Photonics/Display Inst., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

9

Issue

11

fYear

2013

fDate

Nov. 2013

Firstpage

921

Lastpage

928

Abstract

By embedding optical sensors onto a TFT substrate in a display, a flat panel can sense images projected by infrared (IR) light. Light pens which can project Multi- T-mark including out-mark and in-mark of IR images were utilized to calculate the 3-axis information ( x, y, and z) of the tip of the light-pen and achieve accurate user identification accordingly. Therefore, a 3-dimensional virtual touch display for 3-axis information with multi-user/multi-touch system can be achieved.

Keywords

flat panel displays; image sensors; infrared detectors; infrared imaging; light pens; optical sensors; sensor fusion; tactile sensors; thin film sensors; thin film transistors; three-dimensional displays; 3-axis information calculation; IR imaging; IR light; TFT substrate; embedding optical sensor; flat panel; image sensor; infrared light; light-pen tip; multiT-mark project; multiuser-multitouch system; three-dimensional virtual touch display system; Cameras; Filtering algorithms; Information filters; Optical imaging; Optical sensors; Three-dimensional displays; Embedded optical sensors; multi-marks; three-dimensional (3D) virtual touch;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2013.2271633

Filename

6555817