US 10,241,377 B1Granted

Self-healing flexible electrophoretic displays

AssigneeAmazon Technologies, Inc.

InventorsMing Wang, Weihsin Hou, Anoop Menon, Robert Arthur Sprague, Eric Gifford Marason, Yuyan Hua, Shan Cheng

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Abstract

Systems, methods, and computer-readable media are disclosed for self-healing flexible electrophoretic displays and related devices. In one embodiment, an example flexible electrophoretic display may include a flexible plastic thin film transistor (TFT) backplane having a first width, an electrophoretic layer coupled to the flexible plastic TFT backplane, an electrode layer coupled to the electrophoretic layer, an integrated circuit disposed on the flexible plastic TFT backplane, and a protective sheet having a second width that is greater than or equal to the first width.

Claims20

Dependent claims

A self-healing display stack for use with an electronic reader device, the self-healing display stack comprising:

a flexible electrophoretic display (EPD) layer comprising:
a hot melt protective sheet layer comprising a polymer substrate layer and an optically clear adhesive layer;
an electrode layer coupled to the hot melt protective sheet layer;
a microcapsule layer coupled to the electrode layer, wherein the electrode layer is configured to apply a voltage to the microcapsule layer;
a flexible polyimide thin film transistor (TFT) layer coupled to the microcapsule layer;
and
a back protective sheet coupled to the polyimide TFT layer, the back protective sheet configured to support the EPD layer;
a first acrylic adhesive layer coupled to the EPD layer;
a light guide coupled to the first acrylic adhesive layer;
a second acrylic adhesive layer disposed on the light guide;
a touch sensor layer coupled to the second acrylic adhesive layer;
a third acrylic adhesive layer disposed on the touch sensor layer;
and
a self-healing plastic cover lens having a first surface and a second surface, the first surface comprising anti-glare surface features, wherein the self-healing plastic cover lens comprises a synthetic polyurethane polymer, and wherein the third acrylic adhesive layer is in contact with the second surface.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/707,307Filed 18 Sep 2017
Published: US 2019/0086760 A121 Mar 2019
Granted: 26 Mar 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

G02F 1/167
Characterised by the electro-optical or magneto-optical effect: by electrophoresis
G02F 1/133305
Constructional arrangements; Manufacturing methods: flexible substrates, e.g. plastics, organic film
G02F 1/133615
Illuminating devices: edge-illuminating devices, i.e. illuminating from the side
G06F 1/1652
Details related to the display arrangement, including those related to the mounting of the display in the housing: the display being flexible,…