Electronic device with structure to reduce damage to glass

    公开(公告)号:US12101902B2

    公开(公告)日:2024-09-24

    申请号:US17586038

    申请日:2022-01-27

    Abstract: According to certain embodiments, an electronic device comprises a first housing; a second housing; a hinge disposed between the first housing and the second housing such that the second housing is foldable at one end of the first housing; and a flexible display disposed on a surface of the first housing and a surface of the second housing, wherein the flexible display comprises a display panel, and a glass layer disposed on the display panel, such that the display panel is between the glass layer and the surface of the first housing and the surface of the second housing, wherein the glass layer comprises: a bendable portion configured to be flat in an unfolded state when the first housing and the second housing are disposed horizontally adjacent, and to be bent in a folded state when the first housing and the second housing are vertically adjacent; and a first flat portion adjacent to the bending portion to form a boundary and a second flat portion disposed to extend from the first flat portion to an edge of the glass layer, wherein the glass layer comprises a glass member, wherein the glass member has a first thickness in the second flat portion, has a second thickness at the center of the bending portion, and has a third thickness less than the first thickness and greater than the second thickness in a section between the first flat portion and the center of the bending portion, and wherein the thickness of the glass member gradually decreases from the first flat portion to the center of the bending portion forming a concave portion.

    HYDROGENATED BLOCK COPOLYMER AND LAMINATED GLASS

    公开(公告)号:US20180171057A1

    公开(公告)日:2018-06-21

    申请号:US15537431

    申请日:2015-12-25

    Abstract: The present invention is a hydrogenated block copolymer [D] obtained by hydrogenating a block copolymer [C] that comprises two or more polymer blocks [A] and one or more polymer blocks [B], the block [A] comprising a monomer unit derived from an aromatic vinyl compound, and the block [B] comprising a monomer unit derived from a linear conjugated diene compound, the copolymer [D] having a low-temperature-side tan δ peak temperature of −20 to 20° C. and a high-temperature-side tan δ peak temperature of 100° C. or more with respect to dynamic viscoelastic properties, the copolymer [D] being obtained by hydrogenating 90% or more of all unsaturated C—C bonds of the copolymer [C] that is characterized in that a ratio (wA:wB) of a total weight fraction wA of the block [A] in the copolymer [C] to a total weight fraction wB of the block [B] in the copolymer [C] is 15:85 to 40:60, and a ratio of structural units derived from 1,2-addition and 3,4-addition polymerization with respect to a total amount of structural units derived from the linear conjugated diene compound included in the block [B] is 40 wt % or more, and the copolymer [D] having Mw 40,000 to 200,000.

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