Amazon Technologies, Inc.

Anoop Menon

Weihsin Hou

Chin Siong Khor

Yean Chan Woon

Robert Waverly Zehner

Gregory Turner Witmer

Robert Arthur Sprague

Kari Rinko

Siddharth Gupta

Ramez Nachman

Vikram Srinivas

Ali-Reza Bahmandar

Keith Ho Soo Suan

Jori Juhani Oravasaari

Debanjan Mukherjee

Ming Wang

James Robert Lim

Eric Gifford Marason

Shan Cheng

Lakshman Rathnam

Yuting Yeh

Tiffany Yun

Hannah Rebecca Lewbel

Jerry Yee-Ming Chung

Angeles Marcia Almanza-Workman

Christopher Thomas Li

Scott Dylewski

Shankar Ganapathysubramanian

Hany Mounir Ghali

Robert L D Zenner

Premal Parekh

Joel Martin Pollack

Srivatsan Subbarayan

Jukka Kristian Backman

Keith Soo Suan Ho

Jack Shih-Chieh Wei

Guneet Sethi

Jorge Ferrer Pont

John-Paul Clement Perron

Yuyan Hua

Robert Zenner

Premal Vinodchandra Parekh

Robert LD Zenner

In some implementations, an electronic device includes a display stack to display content. The display stack can include a number of substrates coupled using a liquid optically clear adhesive (LOCA). In some implementations, the LOCA can have a modulus of elasticity of no greater than 80,000 Pa. Additionally, the display stack can be formed using a process that includes applying an external force to the display stack by placing the display stack between two fixtures. In an implementation, the external force can be applied while heating the display stack at a temperature of at least 60&#xb0; C. and cooling the display stack according to a particular cooling rate.

Display stack formed to minimize substrate warping

In some implementations, an electronic device includes a display stack to display content. The display stack can include a number of substrates coupled using a first optically clear adhesive (OCA) and a second OCA. In an implementation, the first OCA includes an acrylic-containing OCA and the second OCA includes a silicon-containing OCA. In some instances, the first OCA can include an additive to filter ultraviolet radiation. In a particular implementation, the first OCA can have a total luminous transmittance of no greater than approximately 30% for at least a portion of the UV spectrum radiation.

Reducing discoloration of a display stack

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.

Self-healing flexible electrophoretic displays

This disclosure describes methods and devices useful for adhering a first substrate of a display to a second substrate of the display. In example embodiments, a first plate may be sealed to the first substrate, and a second plate may be sealed to the second substrate. In addition, a layer of adhesive may be disposed between the first and second substrates to assist in adhering the first substrate to the second substrate. A pressure may then be applied to the first and second plates as well as the first and second substrates to assist in the adhesion process. In example embodiments, the first plate may assist in applying pressure proximate a perimeter of the first substrate such that the perimeter of the first substrate adheres to a perimeter of the second substrate.

Devices for substrate adhesion

Systems and methods for planar pressing a module are described. A module includes a first layer and a second layer coupled together by an adhesive between the first layer and second layer. The module is disposed on a planar press and the planar press is activated to apply directional pressure and heat to the module for a specified period of time.

Planar pressing for manufacture of displays

A power storage unit (e.g., a battery) may replace the structural components that support the display of an electronic device. The power storage unit may be adhered to the back surface of the display to provide structural support and to allow for bend or flex of the display. A self-healing layer may prevent or inhibit leaking of materials from within the power storage unit if the power storage unit is cracked or pierced. Alternatively, the power storage unit may be built on a flexible circuit that is associated with the display of the electronic device, where the flexible circuit/power storage unit may be folded around the display and affixed to the back surface of the display. The power storage unit may also be built on substrate associated with the back surface of the display. These configurations may cause a significant reduction in the depth or thickness of the electronic device.

Electronic device power storage unit configurations

Assemblies and techniques are provided for a light guide having a plurality of edge surfaces, a plurality of light sources optically coupled to the light guide, a grating structure adapted to direct light from a light source of the plurality of light sources to exit the light guide, and a coating on an edge surface of the plurality of edge surfaces, where the coating is adapted to reflect light emitted by the light source.

Light guides having reflective coatings

Described herein are electronic devices that includes a display stack having a cover component atop a lightguide component and a display component below the lightguide component. In some instances, the cover component including an antiglare etching applied to a top surface of a coverglass and a touch pattern applied to a bottom surface of the coverglass. In some cases, an optically clear adhesive layer formed from two types of optically clear adhesive may be located between the cover component and the lightguide component and a ring adhesive may be applied to around an outer edge of the cover component, the optically clear adhesive and the lightguide component.

Display stack

An electronic device may include a display assembly that is adhered to a cover sheet and the cover sheet is elastically bonded to a frame with a compressive and elastic bonding component. Inside the device, the display assembly is spaced apart from the frame, which allows the display assembly to bend or move. The compressive and elastic bonding component has two strong adhesive layers and a low modulus layer that dissipates stress of the display assembly via the cover sheet, such that the compressive and elastic bonding component permits the cover sheet to bend.

Compressive and elastic bonding component of an electronic device

A multifunctional device layer may include a lightguide substrate having an optically patterned surface and an opposing non-patterned surface. The non-patterned surface of the lightguide substrate is coated with a first material having a first refractive index and the patterned surface is coated with a second material having a second refractive index. The first refractive index may be lower than the second refractive index and each may be lower than a refractive index of the lightguide substrate. A touch sensor may be formed on the coated non-patterned surface of the lightguide substrate, the coated patterned surface, or on an interstitial layer deposited on the coated non-patterned surface or the coated patterned surface. An anti-glare/anti-reflective coating potentially having ultraviolet (UV) absorption properties may be applied to the touch sensor.

Multifunctional layer for a display device

An electronic device includes a display for rendering content. The display may include a protective sheet that is located between an image-displaying component and a liquid optically clear adhesive (LOCA) that adheres another component layered atop the display, such as a front light, a touch sensor or a cover layer. In some cases, the protective sheet may be a polymer sheet coated with a layer of ceramic material that prevents migration of a reactive species, such as a photoinitiator, between the protective sheet and the LOCA. Alternatively, a plasma treatment, a UV-light-ozone treatment, or a thermal treatment may be applied to the protective sheet to remove material including the reactive species and/or form a barrier layer to prevent migration of the reactive species. Still alternatively, the protective sheet may be a thin flexible glass sheet that does not include constituents that interact with the LOCA.

Inhibiting display discoloration

Describe herein are electronic devices that includes a display stack having a cover component atop a lightguide component and a display component below the lightguide component. In some instances, the cover component including an antiglare layer having at least some antiglare properties applied to a top surface of a substrate and a touch pattern applied to a bottom surface of the substrate. In some cases, the touch pattern is a single layer multi-touch pattern connected to a touch controller to from a touch sensor capable of detecting the location of an object proximate to antiglare layer.

Cover assembly for a display stack

Describe herein are electronic devices that includes a display stack having a display component configured to display a three dimensional image. In some instances, the display component includes a layer of lenticular structures or lenses formed by applying a layer of liquid lacquer to a surface associated with the display component, embossing the lenticular structures into the lacquer, and curing or hardening the lenticular structures in place.

Display component assembly

In some implementations, a process includes forming a layer of a liquid optically clear adhesive (LOCA) on a surface of a first substrate. Additionally, the LOCA can be contacted with a surface of a second substrate. The LOCA can then be exposed to Ultraviolet (UV) radiation. After exposing the LOCA to UV radiation, additional substrates can be coupled to the first substrate, the second substrate, or both to form a display stack. In an implementation, the total energy/unit area for the UV radiation applied to the LOCA can be no greater than 25,000 kJ/cm.

Display stack fabrication

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Capitola, CA, United States of America

Anoop Menon