Display devices containing polymeric films

    公开(公告)号:US11127924B2

    公开(公告)日:2021-09-21

    申请号:US16674482

    申请日:2019-11-05

    Abstract: Display devices that include: an organic light emitting diode panel having a multilayer construction including one or more adhesive films; and a polymeric film incorporated within the multilayer construction of the organic light emitting diode panel. The polymeric film includes: a first polymeric layer having two major surfaces, wherein the first polymeric layer includes: a first polymer region including a first material having a refractive index of n1; a second region including a network of interconnected pores and channels within the first polymer region; wherein the pores and channels comprise a second material having a refractive index of n2; wherein n1 is different than n2; wherein the first material includes a first elastic polymeric material and optional particles; and wherein the second material includes: a second polymeric material and optional particles; and/or air; and wherein the polymeric film has: a clarity of at least 90%; a visible light transmission of at least 80%; and a bulk haze of 25% to 80%.

    OPTICAL STACK
    20.
    发明申请

    公开(公告)号:US20240377568A1

    公开(公告)日:2024-11-14

    申请号:US18783587

    申请日:2024-07-25

    Abstract: An optical stack includes an optical film and an optical adhesive disposed on the optical film. The optical adhesive has a major structured surface facing away from the optical film that includes a plurality of channels formed therein. The channels define a plurality of substantially flat land regions therebetween. The land regions include at least about 50% of a total surface area of the major structured surface. When the optical stack is placed on a support surface with the major structured surface of the optical adhesive contacting the support surface, the optical stack bonds to the support surface and may be removed from, or slidingly repositioned on, the support surface without damage to the optical adhesive or the support surface, and upon application of at least one of heat and pressure, the optical stack substantially permanently bonds to the support surface and the plurality of channels substantially disappear.

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