Display including a film lightguide bent around a guide element
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United States of America Patent
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Mar 20, 2018
Grant Date -
Oct 5, 2017
app pub date -
Jun 9, 2017
filing date -
Mar 12, 2013
priority date (Note) -
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Abstract
In one aspect, a display comprises a light source, a film-based lightguide with a light emitting region positioned adjacent to and directing light to an active area of a spatial light modulator in a thickness direction. The film may have a light mixing region positioned between a light input region and the light emitting region. In one aspect the display comprises a guide element having a surface curved in a first plane positioned along a first edge of the spatial light modulator, wherein the film is folded along the curved surface at a first fold such that the first fold positions a portion of the light mixing region above or below the active area, the light mixing region comprises the first fold, and an inner surface of the film in the light mixing region is in contact with and curved along the curved surface of the guide element.
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