Bare Finger 3D Air-Touch System Using an Embedded Optical Sensor Array for Mobile Displays

Author

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

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

10

Issue

1

fYear

2014

fDate

Jan. 2014

Firstpage

13

Lastpage

18

Abstract

Generally, 3-D interactive systems are used in systems with large displays and are not suitable for portable devices. To “touch” a floating 3-D image displayed from a mobile device, we proposed a camera-free, 3D, interactive, virtual-touch system for bare fingers. By embedding optical sensors into the display pixels and adding angular scanning illuminators to the edge of the display, a flat panel can sense the images reflected off a bare finger. The three-axis (x, y, z) information of the fingertip can be determined by analyzing these reflected images. The proposed 3-D virtual-touch system successfully functions with a 4-in mobile display.

Keywords

image scanners; intelligent sensors; interactive devices; interactive systems; optical sensors; portable instruments; sensor arrays; tactile sensors; three-dimensional displays; 3D interactive system; angular scanning illuminator; bare finger 3D air-touch system; camera-free 3D interactive virtual-touch system; embedded optical sensor array; floating 3D image mobile display; portable device; reflected image analysis; size 4 in; Fingers; Image resolution; Lighting; Mobile communication; Optical sensors; Search methods; Three-dimensional displays; Three-dimensional (3D) virtual touch; embedded optical sensors;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2013.2277567

Filename

6576158