Illumination device
    54.
    发明授权

    公开(公告)号:US11921311B2

    公开(公告)日:2024-03-05

    申请号:US17913567

    申请日:2021-03-26

    CPC classification number: G02B6/0028 G02B6/0073 G02F1/133615

    Abstract: Provided is a lighting apparatus having high light entrance efficiency with respect to a light guide plate, and being excellent in tint of light emitted from the light guide plate. The lighting apparatus of the present invention includes: an LED package; a light guide plate, which includes a main surface serving as a light emission surface, and a side surface serving as a light entrance surface, and which is arranged so that the side surface is opposed to the LED package; and a low-refractive index layer arranged between the LED package and the light guide plate.

    Double-sided adhesive layer-equipped optical laminate

    公开(公告)号:US11891549B2

    公开(公告)日:2024-02-06

    申请号:US17276962

    申请日:2019-09-26

    Abstract: There is provided an optical laminate with pressure-sensitive adhesive layers on both surfaces, which is suppressed damage from occurring to a low-refractive index layer in vacuum lamination while maintaining excellent characteristics of the low-refractive index layer. An optical laminate with pressure-sensitive adhesive layers on both surfaces according to an embodiment of the present invention comprises: a substrate; a low-retractive index layer formed on the substrate; a first pressure-sensitive adhesive layer arranged so as to be adjacent to the low-refractive index layer; and a second pressure-sensitive adhesive layer serving as one outermost layer. The low-refractive index layer has a porosity of 50% or more, the first pressure-sensitive adhesive layer has a storage modulus of elasticity of from 1.3×105 (Pa) to 1.0×107 (Pa), and the second pressure-sensitive adhesive layer has a storage modulus of elasticity of 1.0×105 (Pa) or less.

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