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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 34 — Dec. 1, 2001
  • pp: 6274–6280

Thin Liquid-Crystal Display Backlight System with Highly Scattering Optical Transmission Polymers

Akihiro Tagaya, Michio Nagai, Yasuhiro Koike, and Kazuaki Yokoyama  »View Author Affiliations


Applied Optics, Vol. 40, Issue 34, pp. 6274-6280 (2001)
http://dx.doi.org/10.1364/AO.40.006274


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Abstract

We describe an advanced highly scattering optical transmission (HSOT) polymer backlight system that has shown twice the brightness of a conventional transparent system in spite of its having a thinner backlight. The HSOT polymer that contains optimized heterogeneous structures produced homogeneous scattered light with forward directivity and sufficient color uniformity. Although it was thought that polymers for light-guide plates (LGPs) must be transparent to minimize scattering, we have come to the conclusion that the HSOT polymer, which is not an absorping medium but a scattering medium, is a more suitable medium for LGPs.

© 2001 Optical Society of America

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(230.3720) Optical devices : Liquid-crystal devices
(290.4210) Scattering : Multiple scattering
(290.7050) Scattering : Turbid media

Citation
Akihiro Tagaya, Michio Nagai, Yasuhiro Koike, and Kazuaki Yokoyama, "Thin Liquid-Crystal Display Backlight System with Highly Scattering Optical Transmission Polymers," Appl. Opt. 40, 6274-6280 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-34-6274


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References

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  2. A. Horibe, M. Baba, E. Nihei, and Y. Koike, “High-efficiency and high-quality LCD backlight using highly scattering optical transmission polymer,” IEICE Trans. Electron. E81-C, 1697–1702 (1998).
  3. A. Tagaya and Y. Koike, “Highly scattering optical transmission polymers for liquid crystal display,” in Design, Fabrication, and Characterization of Photonic Devices, M. Osinski, S. J. Chua, and S. F. Chichibu, Proc. SPIE 3896, 214–222 (1999).
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