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    Wide lateral angle frontlight for use with reflective displays
    14.
    发明授权
    Wide lateral angle frontlight for use with reflective displays 有权

    公开(公告)号：US11079630B1

    公开(公告)日：2021-08-03

    申请号：US16713695

    申请日：2019-12-13

    Applicant: Amazon Technologies, Inc.

    Inventor： Robert Arthur Sprague ,  Jerry Yee-Ming Chung

    IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/1335

    Abstract: Devices, systems, and methods are provided for generating a wide angle frontlight for use with reflective displays. A display device may include a first end and a second end opposite the first end, and a first side and a second side opposite the first side. The display device may include a first light source, and a first light guide able to receive first light from the first light source. The display device may include a reflective display, the first light guide including a first refractive device, the first refractive device refracts a first portion of the first light toward the reflective display in a first direction toward the first side and to refract a second portion of the first light toward the reflective display in a second direction toward the second side, and the first direction separated from the second direction by a first angle of at least forty degrees.

    Borderless display with curved edges
    15.
    发明授权
    Borderless display with curved edges 有权

    公开(公告)号：US11009762B1

    公开(公告)日：2021-05-18

    申请号：US16370169

    申请日：2019-03-29

    Applicant: Amazon Technologies, Inc.

    Inventor： Weihsin Hou ,  Robert Arthur Sprague ,  Chin Siong Khor ,  Siddharth Gupta

    IPC: G02F1/167 ,  G02F1/1368 ,  G06F1/16 ,  H01L51/00 ,  G02F1/1333 ,  G02F1/133 ,  G02B1/14

    Abstract: An electronic device with a flexible display subassembly is provided. The display stack may use two layers of adhesives having different elastic properties to improve mechanical impact resistance, with a first adhesive layer made of a viscoelastic material and a second adhesive layer having a low modulus of elasticity. The display stack may also include a hot melt protective sheet (HMPS) covering the display subassembly. The HMPS may be wrapped around the two side edges of a rigid substrate to attach directly to the substrate, thereby aiding in the adhesion of the display stack to the substrate. The display stack may also includes a patterned back protective sheet in which the protective backing layer is removed along the curved portions of the display stack.

    Covers for electronic display elements with improved visibility
    16.
    发明授权
    Covers for electronic display elements with improved visibility 有权

    公开(公告)号：US10557221B1

    公开(公告)日：2020-02-11

    申请号：US16295718

    申请日：2019-03-07

    Applicant: Amazon Technologies, Inc.

    Inventor： Robert Arthur Sprague ,  John Michael Cesaratto ,  Maung Aung

    IPC: D03D1/00 ,  H05K5/03 ,  H05K5/00

    Abstract: Systems, methods, and computer-readable media are disclosed for covers for electronic display elements with improved visibility. In one embodiment, an example cover for an electronic device may include a first fiber segment, a second fiber segment coupled to the first fiber segment, where the first fiber segment and the second fiber segment together form an opening in the cover, and an optically clear adhesive. A first portion of the optically clear adhesive may be disposed in the opening. The optically clear adhesive may have a refractive index value of between about 1.3 and about 1.6, and a first thickness of the first portion may be less than a second thickness of the cover. The cover may be transmissive to visible light.

    Structural alignment features for light emitting diode arrays
    17.
    发明授权
    Structural alignment features for light emitting diode arrays 有权

    公开(公告)号：US10288797B1

    公开(公告)日：2019-05-14

    申请号：US15384001

    申请日：2016-12-19

    Applicant: Amazon Technologies, Inc.

    Inventor： Robert Arthur Sprague ,  Eric Gifford Marason ,  Weihsin Hou ,  Juho Ilkka Jalava

    IPC: F21V8/00

    Abstract: Systems, methods, and computer-readable media are disclosed for structural alignment features for light emitting diode arrays. In one embodiment, a device may include a light guide with a first surface, a second surface opposite the first surface, and a third surface perpendicular to the first surface and the second surface. The device may include a light emitting diode array with a first set of light emitting diodes arranged in a first row and a second set of light emitting diodes arranged in a second row. The first set of light emitting diodes may be optically and physically coupled to the first surface, and the second set of light emitting diodes may be optically coupled to the second surface.

    Display stack for borderless electronic displays
    18.
    发明授权
    Display stack for borderless electronic displays 有权

    公开(公告)号：US10228604B1

    公开(公告)日：2019-03-12

    申请号：US14851731

    申请日：2015-09-11

    Applicant: Amazon Technologies, Inc.

    Inventor： Hany Mounir Ghali ,  Robert Arthur Sprague ,  Siddharth Gupta

    IPC: G02B26/00 ,  G02B26/08 ,  G02F1/29 ,  G02F1/167 ,  G02F1/1368 ,  G02F1/1345 ,  G02F1/1333

    Abstract: Systems, methods, and computer-readable media are disclosed for borderless display stacks for use with electronic devices. In one embodiment, a display stack may include a thin film transistor (TFT) layer comprising an active area, an electrophoretic layer coupled to the TFT backplane, and an electrode coupled to a perimeter portion of the electrophoretic layer. The electrode may extend beyond peripheral edges of the electrophoretic layer. A portion of the electrode may be positioned between the electrophoretic layer and the TFT backplane, and the electrode may surround the active area. The display stack may include a cover layer coupled to the electrophoretic layer.

    Thin border displays
    19.
    发明授权
    Thin border displays 有权

    公开(公告)号：US10185200B1

    公开(公告)日：2019-01-22

    申请号：US15191390

    申请日：2016-06-23

    Applicant: Amazon Technologies, Inc.

    Inventor： Robert Arthur Sprague ,  Angeles Marcia Almanza-Workman ,  Wilfrido Loor Canizares ,  Siddharth Gupta ,  Vikram Srinivas

    IPC: G02F1/167 ,  H01L27/12 ,  G02F1/1333 ,  G02B26/00

    Abstract: A thin border display for an electronic device may comprise an optical assembly that includes a support frame and an electrophoretic display (EPD) structure attached to the support frame in a manner that allows for the display of the electronic device to exhibit a “thin border” or “borderless” look at a periphery of the electronic device. A portion of the EPD structure may at least partly curve around a curved portion of the support frame, the curved portion of the support frame being near the periphery of the support frame. In some embodiments, the EPD structure includes a transparent protective substrate disposed on a rear surface of a flexible backplane substrate within the flat outer region where a driver chip is disposed on a front surface of the flexible backplane substrate. The transparent protective substrate protects the driver chip attachment from being damaged during manufacture.

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