Display cover mounting

Patent metadata

Field	Value
Publication number	US-2017251086-A1
Application number	US-201715411397-A
Country	US
Kind code	A1
Filing date	Jan 20, 2017
Priority date	Feb 26, 2016
Publication date	Aug 31, 2017
Grant date	—

Abstract

Techniques are described for mounting a display and/or display cover to a housing of a display device, such as a mobile phone. In an embodiment, the housing and display cover include chamfered edges at complementary angles to allow for an “edge-to-edge” display. The display cover and housing are affixed to each other at the chamfered edges using curable liquid adhesive.

First claim

1 . A display device comprising:
a housing including:
a bottom wall; and
a plurality of side walls that, along with the bottom wall, form an interior space of the housing with a front opening, the front opening defined by a top edge of the side walls, the top edge of the side walls having a first chamfer; and
a display cover including a panel of transparent material with edges having a second chamfer, the display cover affixed to the housing so as to enclose the interior space of the housing, the display cover affixed to the housing by a first bonding material between adjoining faces of the first chamfer of the top edge of the side walls and the second chamfer of the display cover; and an active display assembly arranged within the interior space of the housing, the active display assembly affixed to a bottom surface of the display cover by a second bonding material, the active display assembly oriented so as to be viewable through the front opening, while in use.

2 . The display device of claim 1 , wherein the second chamfer is defined by a depth Y measured perpendicular from a bottom surface of the display cover and an angle φ measured relative to the bottom surface of the display cover.

3 . The display device of claim 2 , wherein the angle φ of the second chamfer is between 30 (thirty) and 60 (sixty) degrees.

4 . The display device of claim 2 , wherein the angle φ of the second chamfer complements an angle θ of the first chamfer such that display cover is affixed to the side wall of the housing at substantially a 90 (ninety) degree angle.

5 . The display device of claim 1 , wherein the first bonding material and/or the second bonding material is a curable liquid adhesive.

6 . The display device of claim 1 , wherein the first bonding material and/or the second bonding material is a re-workable adhesive.

7 . The display device of claim 1 , wherein the transparent material of the display cover includes one or more of a glass, plastic, or crystallized aluminum oxide.

8 . The display device of claim 1 , wherein the housing is formed as a single piece of material.

9 . The display device of claim 1 , wherein the housing is formed through an injection molding process.

10 . (canceled)

11 . The display device of claim 1 , wherein the side walls of the housing form a bezel around a viewable area of the active display assembly, and wherein the bezel is less than 1 (one) millimeter thick in at least some areas.

12 . (canceled)

13 . The display device of claim 1 , wherein the active display assembly is configured for use as a touch screen display.

14 . The display device of claim 1 , wherein the display device is a mobile phone.

15 . A method of manufacturing a display device, the method comprising:
forming a housing that includes a bottom wall and a plurality of side walls that, along with the bottom wall, form an interior space of the housing with a front opening, the front opening defined by a top edge of the side walls, the top edge of the side walls having a first chamfer; forming a transparent display cover with edges having a second chamfer; applying a first bonding material to a bottom surface of the transparent display cover; affixing an active display assembly to the bottom surface of the transparent display cover using the first bonding material; applying a second bonding material along the first chamfer of the top edge of the side walls of the housing; placing the transparent display cover and affixed active display assembly over the front opening such that the first chamfer of the top edge of the side walls of the housing align with the second chamfer of the transparent display cover; and allowing the second bonding material to cure such that the display cover affixes to the housing thereby enclosing the interior space of the housing.

16 . The method of claim 15 , wherein forming the housing includes machining the housing from a single piece of material.

17 . The method of claim 15 , wherein forming the housing includes an injection molding process.

18 . The method of claim 15 , wherein forming the housing includes:
injecting a material composition into an injection mold to form a green housing, the injection mold including a cavity in a shape of the green housing, the shape of the green housing corresponding to a near-net shape of the housing, the material composition including a metal material and a binding material; applying debinding process to remove binding material from the green housing, thereby forming a brown housing; and sintering the brown housing to from the housing.

19 . The method of claim 15 , wherein forming the housing includes machining the top edge of the side walls to form the first chamfer.

20 . The method of claim 15 , wherein forming the transparent display cover includes:
cutting a shape of the transparent display cover from a plate of transparent material; and machining an edge of the resulting shape to form the second chamfer.

21 . The method of claim 15 , wherein applying the first bonding material and/or the second bonding material is performed by an automated precision liquid adhesive applicator.

22 . The method of claim 15 , further comprising cleaning the first chamfer and the second chamfer with a solvent before applying the second bonding material.

23 - 25 . (canceled)

26 . A display device comprising:
a housing including:
a bottom wall; and
a plurality of side walls that, along with the bottom wall, form an interior space of the housing with a front opening, the front opening defined by a top edge of the side walls, the top edge of the side walls having a first chamfer creating an first angled mounting surface;
a display cover including a panel of transparent material with edges having a second chamfer, the second chamfer creating a second angled mounting surface, first and second angled mounting surfaces substantially in parallel and aligned such that the display cover encloses the interior space the housing; an active display assembly arranged within the interior space of the housing and affixed to a bottom surface of the display cover by a bonding material, the active display assembly oriented so as to be viewable through the front opening, while in use; and a gasket between the first and second mounting surfaces, the gasket configured to provide an air tight seal between the first and second mounting surfaces; wherein display cover is affixed to the housing through the introduction of a vacuum within the interior space of the housing.

Assignees

• Essential Products Inc

Inventors

• Gagne-Keats Jason Sean
• Hershenson Matthew
• Jiang Xinrui
• Miao Xiaoyu
• Rubin Andrew E
• Tate Joseph Anthony
• Evans V David John
• Zavin Rebecca Schultz

Classifications

• C09J131/04

  Homopolymers or copolymers of vinyl acetate · CPC title

• B22F2998/10

  Processes characterised by the sequence of their steps · CPC title

• C09J163/00

  Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins · CPC title

• B22F3/24

  After-treatment of workpieces or articles {(B22F3/1146 takes precedence)} · CPC title

• C09J175/04

  Polyurethanes · CPC title