Optically active sol-gel microspheres for flat-panel color displays

Edward J. A. Pope

doi:10.1117/12.188989

13 October 1994 Optically active sol-gel microspheres for flat-panel color displays

Edward J. A. Pope

Proceedings Volume 2288, Sol-Gel Optics III; (1994) https://doi.org/10.1117/12.188989
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

By the end of 1994, flat-panel displays for lap-top computers and televisions will exceed $4.0 billion in total sales. Currently, most such displays are based entirely upon an advanced liquid crystal technology requiring several precisely aligned LC layers. A new technology for flat- panel displays, based upon the solid-state luminescence of sol-gel derived microspheres has been proposed. Silica gel-derived microspheres can be prepared at near ambient temperatures, doped with either optically-active organic dye molecules or lanthanide ions. Microspheres doped to give red, blue, and green luminescence can be arranged in a pixel pattern to form the basis of a display screen. A single monochrome LC layer is used to modulate the excitation light, or pump source, that activates the fluorescence of each pixel.

Citation Download Citation

Edward J. A. Pope "Optically active sol-gel microspheres for flat-panel color displays", Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); https://doi.org/10.1117/12.188989

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