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Proceedings Paper

Highly scattering optical transmission polymer and its application for LCD display
Author(s): Takamitsu Okumura; Akihiro Tagaya; Yasuhiro Koike
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Paper Abstract

We have developed a highly scattering optical transmission (HSOT) polymer, and have succeeded in applying it to a highly efficient backlight in liquid crystal displays (LCDs). In the present work, a multiple scattering modeling simulation has been developed. Also the effects of adjacent particles inside the HSOT polymer are demonstrated. Although Mie scattering theory is based on the assumption that there exists one particle, light scattering intensity profiles are extended by adjacent particles in measurement data. In order to improve the multiple scattering modeling simulation, light scattering intensity profiles calculated by Mie scattering theory are modified by using the experimental correction function. It follows that the numerical calculation improved by taking account of the adjacent particles has precisely reproduced multiple scattering phenomena inside the HSOT polymer. Based upon the results of multiple scattering analysis, an optimal design has been developed and applied to an LCD backlight system. By altering the internal particle condition, uniformity of color and brightness on the top face of the backlight can has been achieved

Paper Details

Date Published: 17 September 2002
PDF: 8 pages
Proc. SPIE 4918, Materials, Devices, and Systems for Display and Lighting, (17 September 2002); doi: 10.1117/12.483058
Show Author Affiliations
Takamitsu Okumura, Keio Univ. and ERATO/Japan Science and Technology Corp. (Japan)
Akihiro Tagaya, ERATO/Japan Science and Technology Corp. (Japan)
Yasuhiro Koike, Keio Univ. and ERATO/Japan Science and Technology Corp. (Japan)

Published in SPIE Proceedings Vol. 4918:
Materials, Devices, and Systems for Display and Lighting
Fuxi Gan; Ming Hsien Wu; Lionel C. Kimerling, Editor(s)

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