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%.

    POLYISOBUTYLENE BASED PASSIVATION ADHESIVE
    57.
    发明申请

    公开(公告)号:US20200048511A1

    公开(公告)日:2020-02-13

    申请号:US16486037

    申请日:2018-02-12

    Abstract: The present invention is an adhesive composition for use in passivating metallic conductors in an electronic device including at least one low molecular weight polyisobutylene polymer having a weight average molecular weight of about 75,000 or lower, at least one high molecular weight polyisobutylene polymer having a weight average molecular weight of about 120,000 or higher, and optionally, at least one tackifier. Each of the polyisobutylenes and the optional tackifier has a halogen ion content of no more than 1 ppm.

    ACRYLIC BLOCK COPOLYMER-BASED ASSEMBLY LAYER FOR FLEXIBLE DISPLAYS

    公开(公告)号:US20190062608A1

    公开(公告)日:2019-02-28

    申请号:US15574218

    申请日:2016-06-01

    Abstract: The present invention is an assembly layer for a flexible device. The assembly layer is derived from precursors including an acrylic block copolymer including (a) at least two A block polymeric units that are the reaction product of a first monomer composition comprising an alkyl methacrylate, an aralkyl methacrylate, an aryl methacrylate, or a combination thereof, wherein each A block has a Tg of at least about 50° C., and wherein the acrylic block copolymer comprises about 5 to about 50 weight percent A block, and (b) at least one B block polymeric unit that is the reaction product of a second monomer composition comprising an alkyl (meth)acrylate, a heteroalkyl (meth)acrylate, a vinyl ester, or a combination thereof, wherein the B block has a Tg no greater than about 10° C., and wherein the acrylic block copolymer comprises about 50 to about 95 weight percent B block. Within a temperature range of between about −30° C. to about 90° C., the assembly layer has a shear storage modulus at a frequency of 1 rad/sec that does not exceed about 2 MPa, a shear creep compliance (J) of at least about 6×10−6 1/Pa measured at 5 seconds with an applied shear stress between about 50 kPa and about 500 kPa, and a strain recovery of at least about 50% at at least one point of applied shear stress within the range of about 5 kPa to about 500 kPa within about 1 minute after removing the applied shear stress.

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