OSA's Digital Library

Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 4 — Feb. 25, 2013
  • pp: 4734–4739

Plastic optical touch panels for large-scale flexible display

Beom-Jun Cheon, Jun-Whee Kim, and Min-Cheol Oh  »View Author Affiliations

Optics Express, Vol. 21, Issue 4, pp. 4734-4739 (2013)

View Full Text Article

Enhanced HTML    Acrobat PDF (1773 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A plastic optical touch panel applicable for large-scale flexible display is demonstrated based on a vertical directional coupling between arrayed channel waveguides and a flexible planar waveguide. When a contact force is applied to the surface, the flexible planar waveguide is bent toward the channel waveguide, and then, the guided mode in the channel waveguide is coupled into the flexible planar waveguide, causing an output power drop. An index-matching liquid is used to fill the gap between the channel and the flexible planar waveguide in order to enhance the transparency of the waveguide touch panel. By applying a force of 1.0 N, the output intensity is decreased by 17 dB, which is sufficiently large for producing a contact signal.

© 2013 OSA

OCIS Codes
(250.5460) Optoelectronics : Polymer waveguides
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(120.5475) Instrumentation, measurement, and metrology : Pressure measurement

ToC Category:

Original Manuscript: December 13, 2012
Revised Manuscript: February 14, 2013
Manuscript Accepted: February 14, 2013
Published: February 19, 2013

Beom-Jun Cheon, Jun-Whee Kim, and Min-Cheol Oh, "Plastic optical touch panels for large-scale flexible display," Opt. Express 21, 4734-4739 (2013)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. C. Shen, K. Ryall, C. Forlines, A. Esenther, F. D. Vernier, K. Everitt, M. Wu, D. Wigdor, M. R. Morris, M. Hancock, and E. Tse, “Informing the design of direct-touch tabletops,” IEEE Comput. Graph. Appl.26(5), 36–46 (2006). [CrossRef] [PubMed]
  2. S. J. Nichols, “New interfaces at the touch of a fingertip,” IEEE Computer40(8), 12–15 (2007). [CrossRef]
  3. P. Lei and A. Wong, “The multiple-touch user interface revolution,” IT Prof.11(1), 42–49 (2009). [CrossRef]
  4. J. Schoning, P. Brandl, F. Daiber, F. Echtler, O. Hilliges, J. Hook, M. Lochtefeld, N. Motamedi, L. Muller, P. Olivier, T. Roth, and U. V. Zadow, “Multi-touch surfaces: a technical guide,” Technical report TUM-10833, University of Munich (2008).
  5. J. Han, “Low-cost multi-touch sensing through frustrated total internal reflection,” 18th Annual ACM Symposium on User Interface Software and Technology (ACM, seattle, Washington, USA, 2005).
  6. O. Wassvik, T. Christiansson, T. C. Bartle, and M. P. Wallander, “Planar scatter detection, a new method for optical touch screens,” Symposium Digest of Technical Papers (Wiley, 2011), pp.726–728.
  7. B.-J. Lee, I.-S. Hong, Y.-S. Uhm, and S. Park, “The multi-touch system with high applicability using tri-axial coordinate infrared LEDs,” IEEE Trans. Consum. Electron.55(4), 2416–2424 (2009). [CrossRef]
  8. L. M. Ng, “Infrared retroreflecting device used for a high-aspect-ratio optical touch panel, the method of manufacturing the same and a high-aspect-ratio touch panel using such device,” US Patent Application 20120097854, April 26, 2012.
  9. T. Chang, L. Alto, A. Grzegorek, S. Jose, C. Zhang, Cupertino, and J. Canfield, “Optical touch panel,” US Patent Application 20100295821, November 25, 2010.
  10. K.-H. Yoon, S.-H. Oh, K.-S. Kim, O.-K. Kwon, D.-K. Oh, Y.-O. Noh, and H.-J. Lee, “2.5-Gb/s hybridly-integrated tunable external cavity laser using a superluminescent diode and a polymer Bragg reflector,” Opt. Express18(6), 5556–5561 (2010). [CrossRef] [PubMed]
  11. J.-W. Kim, N.-S. Son, J.-H. Jang, K.-J. Kim, and M.-C. Oh, “Ultra-low inter-channel crosstalk in array waveguide device incorporating self-assembled microsphere diffraction layer,” Opt. Express19(21), 20904–20909 (2011). [CrossRef] [PubMed]
  12. H.-C. Song, M.-C. Oh, S.-W. Ahn, W. Steier, H. R. Fetterman, and C. Zhang, “Flexible low-voltage electro-optic polymer modulators,” Appl. Phys. Lett.82(25), 4432–4434 (2003). [CrossRef]
  13. K.-J. Kim, J.-W. Kim, M.-C. Oh, Y.-O. Noh, and H.-J. Lee, “Flexible polymer waveguide tunable lasers,” Opt. Express18(8), 8392–8399 (2010). [CrossRef] [PubMed]
  14. M.-C. Oh, J.-W. Kim, K.-J. Kim, and S.-S. Lee, “Optical pressure sensors based on vertical directional coupling with flexible polymer waveguides,” IEEE Photon. Technol. Lett.21(8), 501–503 (2009). [CrossRef]
  15. Y.-S. Kim, S.-T. Park, S.-K. Park, S.-R. Yun, K.-U. Kyung, and K. Sun, “Transparent and flexible force sensor array based on optical waveguide,” Opt. Express20(13), 14486–14493 (2012). [CrossRef] [PubMed]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited