Light control film with turning film and lenticular diffuser for view enhancement in the horizontal plane

    公开(公告)号:US11099314B2

    公开(公告)日:2021-08-24

    申请号:US16475327

    申请日:2018-01-03

    Abstract: Optical system including a lightguide; a turning film, including a first smooth surface perpendicular to a display axis and a first structured surface including a plurality of first microstructures defining a first plurality of parallel grooves, where the turning film is optically coupled to the lightguide, where the turning film outputs light collimated in a first plane parallel to the display axis; and a lenticular diffuser, including a second smooth surface perpendicular to the display axis and a second structured surface comprising a plurality of second microstructures defining a second plurality of parallel grooves extending along a plane perpendicular to the display axis, where the lenticular diffuser is optically coupled to the turning film, where the lenticular diffuser reflects or refracts collimated light toward a second plane perpendicular to the first plane; where the first plurality of parallel grooves is perpendicular to the second plurality of parallel grooves.

    Display including turning film and diffuser

    公开(公告)号:US10948650B2

    公开(公告)日:2021-03-16

    申请号:US15752536

    申请日:2016-08-10

    Abstract: Displays having a viewing area are described. In particular, displays including a lightguide, a turning film, a liquid crystal module including two polarizers, and a diffuser disposed proximate the top polarizer are described. Light extracted from the lightguide and emitted through the viewing area is specularly transmitted between the planar side of the turning film and the bottom absorbing polarizer. Displays that may be useful as switchable displays are described.

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