INTEGRATED DIFFUSER WITH VARIABLE-INDEX MICROLENS LAYER
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United States of America Patent
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Issued Date -
Aug 11, 2016
app pub date -
Feb 6, 2015
filing date -
Feb 6, 2015
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus may include a first layer having a range of first layer indices of refraction. The range of first layer indices of refraction may include at least two indices of refraction. The apparatus may include a second layer proximate the first layer. The second layer may have a second index of refraction that is outside (e.g., lower than) the range of first layer indices of refraction. An interface between the first layer and the second layer may include an array of microlenses of substantially randomized sizes. The microlenses may include sections of features that are substantially spherical, polygonal, conical, etc. According to some implementations, the first and second layers may be disposed between an array of display device pixels and a substantially transparent substrate, such as a glass substrate, a polymer substrate, etc.
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