P. Dietz, W. Yerazunis, and D. Leigh, Very Low-Cost Sensing and Communication Using Bidirectional LEDs, UbiComp 2003: Ubiquitous Computing, pp.175-191, 2003.
DOI : 10.1007/978-3-540-39653-6_14

E. Scott and . Hudson, Using light emitting diode arrays as touch-sensitive input and output devices, Proceedings of the 17th annual ACM symposium on User interface software and technology, pp.287-290, 2004.

D. Pasquariello, M. C. Vissenberg, and G. J. Destura, Remote-Touch: A Laser Input User?Display Interaction Technology. Display Technology, Journal, vol.4, issue.1, pp.39-46, 2008.

S. J. Nichols, New Interfaces at the Touch of a Fingertip, Computer, vol.40, issue.8, pp.12-15, 2007.
DOI : 10.1109/MC.2007.286

B. Lee, I. Hong, Y. Uhm, and S. Park, The multi-touch system with high applicability using tri-axial coordinate infrared LEDs, IEEE Transactions on Consumer Electronics, vol.55, issue.4, pp.2416-2424, 2009.
DOI : 10.1109/TCE.2009.5373818