Abstract

This study proposes an optical panel with full multitouch using the patterned indium tin oxide (ITO) and an algorithm matrix to avoid ghost points. The patterned ITOs include the virtual high and low impedances. The algorithm matrix with two configurations of equivalent circuits for array scanning is derived using the voltage divider rule. The fabrication process of the multitouch panel is carried out using microelectromechanical systems technology. The optical characteristics of the multitouch panel in the UV, visible, and IR regions are measured using photometric analysis. The multitouch panel, containing sensing pixels of 30×30 arrays, has a pixel size of 2×2mm2 and a pitch distance of 2mm. The average values of high and low impedances are 53.23 and 9.3kΩ, respectively. The maximum transmittance is about 74.2% at the wavelength of 692nm. The multitouch panel based on high and low impedance patterns has been specifically designed to offer good adjacent touch resolution and sensitivity for reality multitouch applications. In addition, the patterned design and the algorithm matrix provide unlimited multitouch points and avoid ghost points.

© 2011 Optical Society of America

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    [CrossRef]
  5. S. M. Drucker and C. G. Wong, Microsoft Corporation, “Selectable projector and imaging modes of display table,” U.S. patent 7,134,756 (November 14, 2006).
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    [CrossRef]

2010 (2)

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Verge, Sens. Actuators A, Phys. 162, 394 (2010).
[CrossRef]

G. L. Barrett and R. Omote, Information Display Magazine 26 (3) (2010).

2009 (5)

W. Y. Chang, T. H. Fang, H. J. Lin, Y. T. Shen, and Y. C. Lin, J. Disp. Tech. 5, 178 (2009).
[CrossRef]

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Vergé, Procedia Chemistry 1, 156 (2009).
[CrossRef]

I. Rosenberg and K. Perliny, ACM Trans. Graphics 28, 1(2009).
[CrossRef]

D. X. Wang, Q. B. Liu, and M. J. Zhang, Multimedia Tools App. 51, 963 (2009).
[CrossRef]

B. Lee, I. Hong, Y. Uhm, and S. Park, IEEE Trans. Consumer Electron. 55, 2416 (2009).
[CrossRef]

Agarwal, A.

A. Agarwal, S. Izadi, M. Chandraker, and A. Blake, in Second IEEE International Workshop on Horizontal Interactive Human-Computer Systems (Tabletop 2007) (IEEE, 2007), p. 197.
[CrossRef]

Anzures, F. A.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Barrett, G. L.

G. L. Barrett and R. Omote, Information Display Magazine 26 (3) (2010).

Blake, A.

A. Agarwal, S. Izadi, M. Chandraker, and A. Blake, in Second IEEE International Workshop on Horizontal Interactive Human-Computer Systems (Tabletop 2007) (IEEE, 2007), p. 197.
[CrossRef]

Blumenberg, C.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Boule, A. M. J.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Bush, J.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Butler, A.

S. Hodges, S. Izadi, A. Butler, A. Rrustemi, and B. Buxton, in Symposium on User Interface Software and Technology (Association for Computing Machinery, Inc., 2007), p. 259.
[CrossRef]

Buxton, B.

S. Hodges, S. Izadi, A. Butler, A. Rrustemi, and B. Buxton, in Symposium on User Interface Software and Technology (Association for Computing Machinery, Inc., 2007), p. 259.
[CrossRef]

Chandraker, M.

A. Agarwal, S. Izadi, M. Chandraker, and A. Blake, in Second IEEE International Workshop on Horizontal Interactive Human-Computer Systems (Tabletop 2007) (IEEE, 2007), p. 197.
[CrossRef]

Chang, W. Y.

W. Y. Chang, T. H. Fang, H. J. Lin, Y. T. Shen, and Y. C. Lin, J. Disp. Tech. 5, 178 (2009).
[CrossRef]

Chaudhri, I.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Christie, G.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Coffman, P. L.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Drucker, S. M.

S. M. Drucker and C. G. Wong, Microsoft Corporation, “Selectable projector and imaging modes of display table,” U.S. patent 7,134,756 (November 14, 2006).

Fang, T. H.

W. Y. Chang, T. H. Fang, H. J. Lin, Y. T. Shen, and Y. C. Lin, J. Disp. Tech. 5, 178 (2009).
[CrossRef]

Forstall, S.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Ganatra, N. K.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Hafez, M.

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Verge, Sens. Actuators A, Phys. 162, 394 (2010).
[CrossRef]

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Vergé, Procedia Chemistry 1, 156 (2009).
[CrossRef]

Herz, S.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Hodges, S.

S. Hodges, S. Izadi, A. Butler, A. Rrustemi, and B. Buxton, in Symposium on User Interface Software and Technology (Association for Computing Machinery, Inc., 2007), p. 259.
[CrossRef]

Hong, I.

B. Lee, I. Hong, Y. Uhm, and S. Park, IEEE Trans. Consumer Electron. 55, 2416 (2009).
[CrossRef]

Izadi, S.

S. Hodges, S. Izadi, A. Butler, A. Rrustemi, and B. Buxton, in Symposium on User Interface Software and Technology (Association for Computing Machinery, Inc., 2007), p. 259.
[CrossRef]

A. Agarwal, S. Izadi, M. Chandraker, and A. Blake, in Second IEEE International Workshop on Horizontal Interactive Human-Computer Systems (Tabletop 2007) (IEEE, 2007), p. 197.
[CrossRef]

Jobs, S. P.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

King, V. S.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Kocienda, K.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Lamiraux, H. C.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Lee, B.

B. Lee, I. Hong, Y. Uhm, and S. Park, IEEE Trans. Consumer Electron. 55, 2416 (2009).
[CrossRef]

Lemay, S. O.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Lin, H. J.

W. Y. Chang, T. H. Fang, H. J. Lin, Y. T. Shen, and Y. C. Lin, J. Disp. Tech. 5, 178 (2009).
[CrossRef]

Lin, Y. C.

W. Y. Chang, T. H. Fang, H. J. Lin, Y. T. Shen, and Y. C. Lin, J. Disp. Tech. 5, 178 (2009).
[CrossRef]

Liu, Q. B.

D. X. Wang, Q. B. Liu, and M. J. Zhang, Multimedia Tools App. 51, 963 (2009).
[CrossRef]

Liu, Y.

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Verge, Sens. Actuators A, Phys. 162, 394 (2010).
[CrossRef]

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Vergé, Procedia Chemistry 1, 156 (2009).
[CrossRef]

Marcos, P. D.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Matas, M.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Mechbal, N.

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Verge, Sens. Actuators A, Phys. 162, 394 (2010).
[CrossRef]

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Vergé, Procedia Chemistry 1, 156 (2009).
[CrossRef]

Nikolovski, J. P.

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Verge, Sens. Actuators A, Phys. 162, 394 (2010).
[CrossRef]

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Vergé, Procedia Chemistry 1, 156 (2009).
[CrossRef]

Novick, G.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Omote, R.

G. L. Barrett and R. Omote, Information Display Magazine 26 (3) (2010).

Ording, B.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Park, S.

B. Lee, I. Hong, Y. Uhm, and S. Park, IEEE Trans. Consumer Electron. 55, 2416 (2009).
[CrossRef]

Perliny, K.

I. Rosenberg and K. Perliny, ACM Trans. Graphics 28, 1(2009).
[CrossRef]

Pisula, C. J.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Rosenberg, I.

I. Rosenberg and K. Perliny, ACM Trans. Graphics 28, 1(2009).
[CrossRef]

Rrustemi, A.

S. Hodges, S. Izadi, A. Butler, A. Rrustemi, and B. Buxton, in Symposium on User Interface Software and Technology (Association for Computing Machinery, Inc., 2007), p. 259.
[CrossRef]

Shen, Y. T.

W. Y. Chang, T. H. Fang, H. J. Lin, Y. T. Shen, and Y. C. Lin, J. Disp. Tech. 5, 178 (2009).
[CrossRef]

Tolmasky, F. R.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Uhm, Y.

B. Lee, I. Hong, Y. Uhm, and S. Park, IEEE Trans. Consumer Electron. 55, 2416 (2009).
[CrossRef]

van Os, M.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Verge, M.

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Verge, Sens. Actuators A, Phys. 162, 394 (2010).
[CrossRef]

Vergé, M.

Y. Liu, J. P. Nikolovski, N. Mechbal, M. Hafez, and M. Vergé, Procedia Chemistry 1, 156 (2009).
[CrossRef]

Wang, D. X.

D. X. Wang, Q. B. Liu, and M. J. Zhang, Multimedia Tools App. 51, 963 (2009).
[CrossRef]

Westerman, W. C.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Williamson, R.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

Wong, C. G.

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Wyld, J. A.

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

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B. Lee, I. Hong, Y. Uhm, and S. Park, IEEE Trans. Consumer Electron. 55, 2416 (2009).
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G. L. Barrett and R. Omote, Information Display Magazine 26 (3) (2010).

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D. X. Wang, Q. B. Liu, and M. J. Zhang, Multimedia Tools App. 51, 963 (2009).
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[CrossRef]

S. Hodges, S. Izadi, A. Butler, A. Rrustemi, and B. Buxton, in Symposium on User Interface Software and Technology (Association for Computing Machinery, Inc., 2007), p. 259.
[CrossRef]

S. P. Jobs, S. Forstall, G. Christie, S. O. Lemay, S. Herz, M. van Os, B. Ording, G. Novick, W. C. Westerman, I. Chaudhri, P. L. Coffman, K. Kocienda, N. K. Ganatra, F. A. Anzures, J. A. Wyld, J. Bush, M. Matas, P. D. Marcos, C. J. Pisula, V. S. King, C. Blumenberg, F. R. Tolmasky, R. Williamson, A. M. J. Boule, H. C. Lamiraux, Apple Inc., “Touch screen device, method, and graphical user interface for determining commands by applying heuristics,” U.S. patent 7,479,949 (January 20, 2009).

S. M. Drucker and C. G. Wong, Microsoft Corporation, “Selectable projector and imaging modes of display table,” U.S. patent 7,134,756 (November 14, 2006).

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Figures (5)

Fig. 1
Fig. 1

Cross section and top view of structural design of multitouch panel.

Fig. 2
Fig. 2

Equivalent circuit of algorithm matrix and control system frame.

Fig. 3
Fig. 3

Top view of multitouch panel on the glass substrate after fabrication.

Fig. 4
Fig. 4

Impedance ratio of high and low impedances at the different touch points and the multitouch panel test in practice operations.

Fig. 5
Fig. 5

Optical transmittance characteristics of the multitouch panel at the wavelength of 200 to 1200 nm .

Equations (5)

Equations on this page are rendered with MathJax. Learn more.

R = ρ × L w × t = R s L w ,
V a = R a R 11 + R a · V c c R a = V a V c c V a · R 11 R a R 11 = V a V c c V a V A ,
V b = R b R R + R b · V c c R b = V b V c c V b · R R R b R R = V b V c c V b V B ,
1 R b = 1 R 11 + 1 R a R b = R 11 · R a R 11 + R a .
R 11 = ( V B V A + V B ) · R R .

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