Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1996-09-24
1999-07-27
Nold, Charles
Stock material or miscellaneous articles
Composite
Of inorganic material
428917, 349 69, 353 20, 359494, 359497, 359500, H05B 3300
Patent
active
059288019
ABSTRACT:
An illumination system has an active layer which includes an electroluminescent material, the active layer being located between an optically transparent electrode layer and a reflective electrode layer. A reflective polarizer is present at a side of the transparent electrode layer facing away from the active layer. A sub-beam incident on the polarizer and having an unwanted polarization is reflected back to the active layer, where it is again partially depolarized to recover a component having the desired state of polarization. The invention also relates to a flat-panel picture display device which includes such an illumination system.
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"Retardation Film for STN-LCD's `NRF`" of the Firm of Nitto Denko in SID '92 Exhibit Guide, Society for Information Display, May 17-2, 1992, Boston, MA, USA.
"Polarizing Color Filters Made From Cholesteric LC Silicones" by R. Maurer et al. in SID International Symposium May 1990, Digest of Technical Papers, pp. 110-113.
Braun David B.
Broer Dirk J.
De Witz Christianne R.M.
Venhuizen Antonius H.J.
Biren Steven R.
Nold Charles
U.S. Philips Corporation
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