TRANSPARENT COMPOSITE SUBSTRATE AND DISPLAY ELEMENT SUBSTRATE
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Nov 6, 2012
filing date -
Nov 21, 2011
priority date (Note) -
Abandoned
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Abstract
A transparent composite substrate according to the present invention includes a composite layer containing a glass cloth formed of an assembly of glass fibers and a resin material impregnated in the glass cloth. The resin material has an Abbe number of equal to or larger than 45. The assembly of the glass fibers itself has a variation in a refractive index and a difference between a maximum value and a minimum value of the refractive index is equal to or less than 0.01. This makes it possible to provide a transparent composite substrate having superior optical characteristics and a high-reliable display element substrate using the transparent composite substrate. Further, the resin material preferably contains an alicyclic epoxy resin or an alicyclic acrylic resin as a major component thereof.
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