Bent Stumpe

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Bent Stumpe
Bent Stumpe.jpg
Bent Stumpe in front of the prototype of the SPS console, 1973.
Born (1938-09-12) 12 September 1938 (age 82)
OccupationElectronic engineer
Known forEarly development of the touchscreen[1]
Bent Stumpe showing a prototype of a capacitive touchscreen developed at CERN in the 1970’s.[2]—a similar technology to which was applied to the iPhone produced by Apple Inc. many years later.[3]

Bent Stumpe (born 12 September, 1938, Copenhagen, Denmark) is a Danish electronic engineer who spent most of his career at the international research laboratory CERN, Geneva, Switzerland. Stumpe built in 1972, following an idea launched by Frank Beck, a capacitive touchscreen[4][5][6][7] for controlling CERN's Super Proton Synchrotron accelerator.[8][9][3][10][11] In 1973 Beck and Stumpe published a CERN report, outlining the concept for a prototype touchscreen as well as a multi-function computer-configurable knob.[12]

On the left, x-y multi touch capacitance screen prototype developed at CERN in 1977;[13][14] on the right, self capacitance screen developed at CERN in 1972.[15]

Bent Stumpe was educated within the Royal Danish Air Force and obtained a certificate as a radio/radar engineer in 1959. Leaving the Air Force, Stumpe was employed from 1959–1961 at the Danish radio and television factory TO-R Radio before he was employed by CERN from 1961 until 2003.[16] In combination with his activities at CERN, Stumpe was a consultant to the World Health Organization working on the development of an instrument for the early detection of Leprosy.[16][17][18]


  1. ^ Gray, Leon (2014). How does a touch screen work. New York, NY: Gareth Stevens Publishing. p. 17. ISBN 978-1-4824-6526-6. OCLC 861210399.
  2. ^ Goodstein, Joel (January 2020). "Det hele begynder med partikler". Maskinmesteren (in Danish). Maskinmestrenes Forening. Retrieved 29 January 2020.
  3. ^ a b Merchant, Brian (2017). The one device : the secret history of the iPhone. New York, NY: Little, Brown and Company. ISBN 978-0-316-54616-4. OCLC 989120655.
  4. ^ Grosse-Puppendahl, Tobias; Holz, Christian; Cohn, Gabe; Wimmer, Raphael; Bechtold, Oskar; Hodges, Steve; Reynolds, Matthew S.; Smith, Joshua R. (2017). Finding Common Ground. New York, New York, USA: ACM Press. doi:10.1145/3025453.3025808. ISBN 978-1-4503-4655-9.
  5. ^ Accha, Venu; Sharma, Pavika (2017). Implementation of digital notebook for academic purpose. IEEE. doi:10.1109/ic3tsn.2017.8284486. ISBN 978-1-5386-0627-8.
  6. ^ Bhalla, Mudit Ratana; Bhalla, Anand Vardhan (10 Sep 2010). "Comparative Study of Various Touchscreen Technologies". International Journal of Computer Applications. Foundation of Computer Science. 6 (8): 12–18. doi:10.5120/1097-1433. ISSN 0975-8887.
  7. ^ "A touching story: from the first touchscreens to the future with Surfancy". Retrieved 2019-10-12.
  8. ^ Crowley-Milling, Michael (29 September 1977). "How CERN broke the software barrier". New Scientist. Reed Business Information: 790–791.}
  9. ^ Stumpe, Bent; Sutton, Christine (1 June 2010). "CERN touch screen". Symmetry Magazine. A joint Fermilab/SLAC publication. Archived from the original on 16 November 2016. Retrieved 16 November 2016.
  10. ^ Gillies, James (2018). CERN and the Higgs boson : the global quest for the building blocks of reality. London: Icon Books. ISBN 978-1-78578-393-7. OCLC 1020865352.
  11. ^ Mazzucato, Mariana (2015). The entrepreneurial state : debunking public vs. private sector myths. New York: PublicAffairs. ISBN 978-1-61039-614-1. OCLC 958585813.
  12. ^ Beck, Frank; Stumpe, Bent (May 24, 1973). Two devices for operator interaction in the central control of the new CERN accelerator (Report). CERN. doi:10.5170/CERN-1973-006. CERN-73-06. Retrieved 2017-09-14.
  13. ^ Bent Stumpe (16 March 1977). "A new principle for x-y touch system" (PDF). CERN. Retrieved 2010-05-25. Cite journal requires |journal= (help)
  14. ^ Bent Stumpe (6 February 1978). "Experiments to find a manufacturing process for an x-y touch screen" (PDF). CERN. Retrieved 2010-05-25. Cite journal requires |journal= (help)
  15. ^ "The first capacitative touch screens at CERN". CERN Courrier. 31 March 2010. Archived from the original on 4 September 2010. Retrieved 2010-05-25. Cite journal requires |journal= (help)
  16. ^ a b Bressan, Beatrice, ed. (8 Sep 2014). From Physics to Daily Life. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA. doi:10.1002/9783527687039. ISBN 978-3-527-68703-9.
  17. ^ Srinivasan H, Stumpe B (1989). "Leprosy diagnosis: a device for testing the thermal sensibility of skin lesions in the field". Bull World Health Organ. 67 (6): 635–41. PMC 2491312. PMID 2699276.
  18. ^ Srinivasan H, Stumpe B (1989). "Value of thermal sensibility testing in leprosy diagnosis in the field--field trial of a pocket device". Lepr Rev. 60 (4): 317–26. doi:10.5935/0305-7518.19890041. PMID 2691791.