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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 28 — Oct. 1, 1992
  • pp: 5988–5996

Optical interference, contrast-enhanced electroluminescent device

J. A. Dobrowolski, Brian T. Sullivan, and R. C. Bajcar  »View Author Affiliations


Applied Optics, Vol. 31, Issue 28, pp. 5988-5996 (1992)
http://dx.doi.org/10.1364/AO.31.005988


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Abstract

A contrast enhancement for electroluminescent displays that uses optical interference is described. The reflection of ambient light from a display can be greatly reduced through the addition of thin-film optical components. In particular, a black layer system consisting of a dielectric layer and a thin absorbing layer is able to reduce the luminous reflectance from 75% to 3% when deposited next to the aluminum counterelectrode. Furthermore, with the addition of several other thin-film optical layers, the luminous reflectance can be decreased to 0.4% while also decreasing the sensitivity of the reflectance to the thicknesses of the electro-optic layers. Theoretical examples of different layer systems with and without optical components are provided. A prototype display that incorporates a black layer system was built, and a luminous reflectance of 3% was achieved.

© 1992 Optical Society of America

History
Original Manuscript: October 10, 1991
Published: October 1, 1992

Citation
J. A. Dobrowolski, Brian T. Sullivan, and R. C. Bajcar, "Optical interference, contrast-enhanced electroluminescent device," Appl. Opt. 31, 5988-5996 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-28-5988

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