Nokia Research Center

Publications

1. Sachi Mizobuchi, Shinya Terasaki, Jukka Häkkinen, Erkki Heinonen, Johan Bergquist, Mark Chignell, "The effect of stereoscopic viewing in a word-search task with a layered background", Journal of the Society for Information Display 16(11), 1105-1113 (2008). Download
2. Johan Bergquist, "Display with arbitrary primary spectra", Society for Information Display Symposium Digest, 39, 783-786 (2008) Download
3. Jyrki Kimmel, Tapani Levola, Pasi Saarikko, and Johan Bergquist, "Novel Diffractive Backlight Concept for Mobile Displays", Journal of the Society for Information Display 16(2), 351-357 (2008). Download
4. Jyrki Kimmel, Tapani Levola, Pasi Saarikko, and Johan Bergquist, "Novel Diffractive Backlight Concept for Mobile Displays", Society for Information Display Symposium Digest, 38, 42-45 (2007) Download
5. Johan Bergquist and Carl Wennstam, "Field-Sequential-Colour Display with Adaptive Gamut", Society for Information Display Symposium Digest, 37, 1594-1597 (2006) Download
6. Johan Bergquist, "Resolution and contrast requirements on mobile displays for different applications in varying luminous environments", Proceedings of the 2nd International Symposium on Nanovision Science, Hamamatsu, 143-145 (2005) Download
7. Johan Bergquist, "Visual Ergonomics Challenges in Information-Intensive Mobile Displays", Proceedings of the 10th International Display Workshops, Fukuoka, 1487-1490 (2003) Download
8. Johan Bergquist, "Display Requirements for Mobile Information Terminals", Proceedings of the 2nd International Display Manufacturing Conference, Seoul, Paper 22-2 (2003) Download
9. Johan Bergquist, "Next Generation Display Technologies for Electronic Books in Japan", 2nd Annual Workshop on Electronic Books, National Institute of Standards, Gaithersburg, (1999) Download
10. Y. Tomita and J. Bergquist, "Photorefractive And Thermooptic Nonlinearities In Potassium Sodium Strontium Barium Niobate Single Crystals", Optoelectronics 8(3), 357-377 (1993) Download
11. Y. Tomita, J. Bergquist, and M. Shibata, "Photorefractive Properties of Undoped, Cr-doped, and Cu-doped KNSBN crystals", Journal of the Optical Society of America B10(1), 94-99 (1993) Download
12. J. Bergquist, Y. Tomita, and M. Shibata, "Near Infrared Photorefractivity in Cr-doped Potassium Sodium Strontium Barium Niobate Single Crystal", Applied Physics A55, 61-64 (1992) Download
13. M. Shibata, Y. Tomita, and J. Bergquist, "Time-Resolved Nonlinear Absorption with Picosecond Two-Beam Excitation in Semi-Insulating Semiconductors", Kogaku 21(9), 620-628 (1992). Download Japanese, English translation
14. Y. Tomita, M. Shibata, and J. Bergquist, "Effects of Free-carrier Absorption on Time-resolved Pump-probe Two-photon Absorption in Semi-insulating Semiconductors", Journal of Applied Physics 72, 1075-1079 (1992) Download
15. Y. Tomita, M. Shibata, and J. Bergquist, "Pulsewidth Dependence of Time-Resolved Two-Photon Absorption with Picosecond Pump-Probe Excitation", Journal of Applied Physics 71(5), 2102-2105 (1992) Download
16. K. Fujii, A. Shimizu, J. Bergquist, T. Sawada, and S. Ikeda, "Two-Photon Absorption Spectra of Quantum-Well Excitons in Static Electric Fields", Modern Physics Letters B5(17), 1133-1139 (1991) Download
17. M. Shibata, Y. Tomita, and J. Bergquist, "Pico-second Photorefractive effect in Semi-insulating Semiconductors and Pulsewidth dependence on Two-photon absorption:Experiment", presented at the 52nd Meeting of the Japanese Society of Applied Physics, Toyama 1991 (In Japanese)
18. K. Fujii, A. Shimizu, J. Bergquist, T. Sawada, "Observation of Two-photon-absorption Quantum Confined Stark Effect in Quantum-well Structures", paper QPDP-15 presented at the 17th International Quantum Electronics Conference, Anaheim, May 1990
19. K. Fujii, A. Shimizu, J. Bergquist, and T. Sawada, "Electric-Field-Induced Changes in the Two-Photon Absorption Spectrum of Multiple-Quantum-Well Structures", Physical Review Letters 65(14), 1808-1811 (1990) Download
20. H. Oda, A. Ishizaki, J. Bergquist, and M. Seki, "MBE Growth of CdTe/CdMnTe Multiple Quantum Well Structure on a (001) GaAs Substrate", presented at the 2nd Conference on Advanced Process and Characterization Technology, Tokyo, 1989

Interviews

• 「国際標準」を勝ち取れ！メーカーの生き残り戦略・その舞台裏 (Winning the International Standards - behind the scenes of manufacturers' strategies for survival) NHK BS1, 4 August, 2009 (in Japanese)
• Antal färger trubbigt mått (number of addressable colours a misleading metric), Elektroniktidningen, 23 January, 2003 (in Swedish)
• Den perfekta skärmen finns inte (There is no perfect display), Elektroniktidningen, 23 January, 2003 (in Swedish)
• Platta bildskärmar med kvalitet tar över (high-quality, flat-panel displays win), Computer Sweden, May, 1996 (in Swedish)

Presentations

1. Moving image quality requirements in mobile devices. Download (in Japanese)
   Presentation at the Human Factor Project Symposium on Vision and Moving Images, Japan Electronics and Information Technology Industries Association (JEITA), Tokyo, November 9th, 2009
2. Display evaluation, metrology, and metrics.Download (in Japanese)
   20th LCD design technology workshop, Shintech, Inc., Tokyo, May 15th, 2009
3. Display-induced motion artefacts. Download
   Seminar at the Display Institute, National Chiao Tung University, Taiwan, Dec 19th, 2007
4. Moving image quality degradation: Metrology, metrics, and standardisation Download (in Japanese)
   Presentation at the Human Factor Project Symposium, Japan Electronics and Information Technology Industries Association (JEITA), Sep 19th, 2007
5. Display-induced motion artefacts. Download
   Seminar at the Media Technology Laboratory, Helsinki University of Technology, Mar 27th, 2007
6. Direct-view field-sequential display technologies for portable devices. Download (in Japanese)
   Seminar at the Information Display Technology Research Committee, Foundation for the Advancement of Science, Tokyo, March 9th, 2007.
7. OLEDs vs LCDs. Download
   Seminar at the Advanced Display Research Center, Kyunghee University, Seoul, February 22nd, 2007.
8. Digital convergence and its service development in Japan and Northern Europe. Download (in Japanese)
   Seminar at the Japanese Insitute of Scandinavian Studies, March 25th, 2004. Video
9. Experiences from Basic and Applied Research at Domestic and Foreign Organisations in Japan. Download
   Seminar arranged by Chalmers Advanced Management Programs, International Management of Technology Program, Tokyo, November 21st, 2003.
10. Mobila internettjänster i tredje generationens mobiltelefoni och andra trådlösa nätverk. Download (in Swedish)
    Seminar for the Board of Regional Research in West Sweden, Tokyo, April 3rd, 2003.
11. Bildskärmen viktigast i framtidens mobiltelefoner. Download (in Swedish)
    Seminar at the inauguration of the Swedish LCD Center, June 2nd, 2002.
12. Creating Value through Innovation - Mobile e-Business. Download
    Seminar at FPD/LCD International, October 27th, 2000.
13. Next Generation Mobile Terminals and their Display Requirements. Download (in Japanese)
    Seminar at FPD/LCD International, October 26th, 2000.
14. Requirements for Organic Electroluminescent Displays (OLEDs) in Mobile Phones. Download (in Japanese)
    Seminar arranged by Electronic Journal, May 30th, 2000.
15. Displayteknik för presentationsystem idag och i framtiden. Download (in Swedish)
    Seminar at the Physics Department, Chalmers University of Technology, May 9th, 2000.

Patents

1. Apparatus, method and module for selective pixel control of display. Download PCT patent application
2. Sample-and-Hold Display with Impulse Backlight . Download U.S. patent pending
3. Display Device with Dynamic Color Gamut. Download U.S. patent
4. Display Circuit with Optical Sensor. Download U.S. patent
5. All-Optical Light Modulating Apparatus and All-Optical Process for Modulating Light. Download U.S. and Japanese patent
6. Camera Flash with Reconfigurable Emission Spectrum. Download U.S. patent pending
7. Displays with large dynamic range. Download U.S. patent pending
8. System, Methods, Apparatuses, and Computer Program Products for Providing a Private Multiple Screen. Download U.S. patent pending
9. Reflectors. Download U.S. patent pending
10. Optical pulse shaping device and method. Download abstract in English and Japanese patent application
11. Narrow band optical filter. Download abstract in English and Japanese patent application