# Patent

## Title
Housing for portable electronic device with reduced border region

## Abstract

An electronic device having a housing structure that is configured to receive at least one glass cover is disclosed. The glass cover serves to cover a display assembly provided within the electronic device. The glass cover can be secured to the housing structure so as to facilitate providing a narrow border between an active display area and an outer edge of the housing structure. The enclosure for the electronic device can be thin yet be sufficiently strong to be suitable for use in electronic devices, such as portable electronic devices.

## Background
CROSS-REFERENCE TO OTHER APPLICATION
This application claim priority to U.S. Provisional Patent Application No. 61/482,513, filed May 4, 2011, entitled “HOUSING FOR PORTABLE ELECTRONIC DEVICE WITH REDUCED BORDER REGION,” which is herein incorporated by reference.


BACKGROUND
Conventionally, a portable electronic device has a housing that encases the various electrical components of the portable electronic device. Often, the portable electronic device has a display arrangement that includes various layers. The various layers usually include at least a display technology layer, and may additionally include a sensing arrangement (e.g., touch sensors or touch screen) and/or a cover window disposed over the display technology layer. The cover window can be a plastic or glass cover that provides a protective outer surface that protects the display technology layer. The cover window can form part of an outer surface for the housing of the portable electronic device. Conventionally, supporting or securing the cover window to other portions of the housing tends to impede usage of a peripheral area of the cover window.
Nevertheless, as portable electronic device continue to be made smaller, thinner and/or more powerful, there remains a continuing need to provide improved techniques and structures for supporting cover windows of portable electronic device housings.
SUMMARY
The invention pertains to an electronic device having a housing structure that is configured to receive at least one glass cover. The glass cover serves to cover a display assembly provided within the electronic device. The glass cover can be secured to the housing structure so as to facilitate providing a narrow border between an active display area and an outer edge of the housing structure. The enclosure for the electronic device can be thin yet be sufficiently strong to be suitable for use in electronic devices, such as portable electronic devices.
The invention can be implemented in numerous ways, including as a method, system, device, or apparatus. Several embodiments of the invention are discussed below.
As a portable electronic device, one embodiment can, for example, include at least an electronic device housing including a bottom surface and side surfaces, and a glass cover for a top surface for the electronic device enclosure. In addition, a display screen assembly having a top surface and a bottom surface can be provided within the electronic device housing, with the top surface of the display screen assembly being secured to a bottom surface of the glass cover. The portable electronic device can also include at least one peripheral internal support structure secured to a peripheral region of the bottom surface of the display screen assembly.
As a method for assembling an electronic device having a product housing, one embodiment can, for example, include at least: obtaining a glass member having a top surface and a bottom surface, the top surface providing an outer surface for substantially all of at least one surface of the electronic device; attaching a top surface of a display screen assembly to the bottom surface of the glass member; attaching at least one peripheral support structure to a peripheral region of a bottom surface of the display screen assembly, wherein the glass member, the display screen assembly and the at least one peripheral support structure forms a resulting display assembly; and thereafter securing the resulting display assembly to the product housing at least the at least one peripheral support structure.
As a portable electronic device, one embodiment can, for example, include at least an electronic device housing including a bottom surface and side surfaces, and a glass cover for a top surface for the electronic device enclosure. In addition, a touch screen assembly having a top surface and a bottom surface can be provided internal to the electronic device housing, with the top surface of the touch screen assembly being secured to a bottom surface of the glass cover. The touch screen assembly can include a plurality of technology layers, including at least a first technology layer and a second technology layer. The portable electronic device can also include at least one mounting bracket secured to the touch screen assembly.
Other aspects and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the invention.



BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which:
FIG. 1 a flow diagram of a housing formation process according to one embodiment.
FIG. 2A is a cross-sectional view of an electronic device housing according to one embodiment.
FIGS. 2B-2E are a cross-sectional assembly diagrams for the electronic device housing shown in FIG. 2A, according to one embodiment.
FIG. 3 is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 4A illustrates a side member and a mounting bracket of an electronic device housing according to one embodiment.
FIG. 4B illustrates a side member and a mounting bracket of an electronic device housing according to another embodiment.
FIG. 4C illustrates a side member, a mounting bracket and a frame (portion thereof) of an electronic device housing according to one embodiment.
FIG. 5 a flow diagram of a housing formation process according to one embodiment.
FIG. 6 is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 7 a flow diagram of a housing formation process according to one embodiment.
FIG. 8A is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 8B is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 8C is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 9A is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 9B is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 10A is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 10B is a cross-sectional view of an electronic device housing according to one embodiment.
FIG. 11 is a perspective diagram of a handheld electronic device according to one embodiment.



DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
Embodiments are described herein in the context of a housing for an electronic device. The housing can make use of an outer member, which can be formed of glass. The outer member can be aligned, protected and/or secured with respect to other portions of the housing for the electronic device. The electronic device can be portable and in some cases handheld.
According to one aspect, the invention pertains to an electronic device having a housing structure that is configured to receive at least one glass cover. The glass cover serves to cover a display assembly provided within the electronic device. The glass cover can be secured to the housing structure so as to facilitate providing a narrow border between an active display area and an outer edge of the housing structure. The enclosure for the electronic device can be thin yet be sufficiently strong to be suitable for use in electronic devices, such as portable electronic devices.
The following detailed description is illustrative only, and is not intended to be in any way limiting. Other embodiments will readily suggest themselves to skilled persons having the benefit of this disclosure. Reference will now be made in detail to implementations as illustrated in the accompanying drawings. The same reference indicators will generally be used throughout the drawings and the following detailed description to refer to the same or like parts. It should be appreciated that the drawings are generally not drawn to scale, and at least some features of the drawings have been exaggerated for ease of illustration.
Embodiments of the invention can relate to apparatus, systems and methods for forming a housing having a thin glass member for an electronic device. In one example, the glass member may be an outer surface of an electronic device. The glass member may for example correspond to a glass cover that helps form part of a display area of an electronic device (i.e., situated in front of a display either as a separate part or integrated within the display). Alternatively or additionally, the glass member may form a part of the housing. For example, it may form an outer surface other than in the display area.
The apparatus, systems and methods for improving strength of thin glass are especially suitable for glass covers, or displays (e.g., LCD displays), assembled in small form factor electronic devices such as handheld electronic devices (e.g., mobile phones, media players, personal digital assistants, remote controls, etc.). The glass can be thin in these small form factor embodiments, such as less than 3 mm, or more particularly between 0.5 and 2.5 mm, or even more particularly between 0.3 and 1.0 mm. The apparatus, systems and methods can also be used for glass covers or displays for other devices including, but not limited to including, relatively larger form factor electronic devices (e.g., portable computers, tablet computers, displays, monitors, televisions, etc.). The glass can also be thin in these larger form factor embodiments, such as less than 5 mm, or more particularly between 0.5 and 3 mm, or even more particularly between 0.3 and 2.0 mm.
Embodiments are discussed below with reference to FIGS. 1-11. However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes as the invention extends beyond these limited embodiments.
FIG. 1 a flow diagram of a housing formation process 100 according to one embodiment. The housing formation process 100 can operate to produce a housing for an electronic device, or at least a portion of such a housing.
The housing formation process 100 can initially obtain 102 a glass member. A top surface of the glass member can represent an outer surface for the housing, and the bottom surface of the glass member is an inner surface that is not exposed. The glass member can serve as a significant outer surface for the housing. For example, the glass member can correspond to a top surface for the housing. Alternatively or additionally, the glass member can correspond to a bottom surface for the housing. The glass member is typically thin, particularly when used with portable electronic devices. In one embodiment, the glass member has a thickness of less than 5 mm, or more particularly less than 1 mm.
After the glass member has been obtained 102, mounting brackets can be attached 104 to a peripheral region on the bottom surface of the glass member. The mounting brackets can be attached to the bottom surface of the glass member using an adhesive. The adhesive can, for example, by provided as a film or layer. Also, the manner by which the adhesive is deposited can vary. In one implementation, the adhesive can be deposited by forming a peripheral pattern of adhesive that can be placed on the bottom surface of the glass member so as to provide adhesive at the regions on the bottom surface of the glass member where the mounting brackets are to be placed. In another implementation, the adhesive can be screen printed on appropriate peripheral portions on the bottom surface of the glass member. In still another embodiment, the adhesive can be applied to the surface of the mounting brackets that is to be secured to the bottom surface of the glass member.
After the mounting brackets have been attached 104, a touch screen assembly can be attached 106 to a central region of the bottom surface of the glass member. The touch screen assembly can include a plurality of touch and display components that are laminated together to implement a touch screen. The touch and display components can, for example, include a display technology layer (e.g., LCD panel), a sensing layer (e.g., touch sensors) and/or a back light component.
The touch screen assembly can be attached 106 using an adhesive. The adhesive can, for example, by provided as film or layer. Also, the manner by which the adhesive is deposited can vary. In one implementation, the adhesive can be deposited by forming a pattern of adhesive (e.g., translucent adhesive) that can be placed on the bottom surface of the glass member so as to provide adhesive at the bottom surface of the glass member where the touch screen assembly is to be placed. The adhesive can additionally or alternatively be deposited on the top surface of the touch screen assembly. In another implementation, the adhesive can be screen printed or sprayed on appropriate portion of the bottom surface of the glass member and/or a top surface of the touch screen assembly.
Next, after the touch screen assembly has been attached 106, a frame can be attached 108 such that the frame is adjacent to the bottom surface of the touch screen assembly. The frame being attached 108 can serve to protect the touch screen assembly from damage and can provide structural stiffness to the housing for the electronic device. The frame can be attached 108 to the mounting brackets or side members of the housing for the electronic device. In one embodiment, the frame can be attached 108 using any of a variety of means, such as adhesive, screws, snaps or welds. In some embodiment, the frame need not be included.
After the frame has been attached 108, the resulting display assembly, including the glass member, the mounting brackets, the touch screen assembly and the frame can be secured to the housing of the electronic device. For example, the resulting display assembly can be secured 110 to the housing of the electronic device by way of the mounting brackets and/or the frame. Following the block 110, the housing formation process 100 can end.
FIG. 2A is a cross-sectional view of an electronic device housing 200 according to one embodiment. In one embodiment, the electronic device housing 200 can result from the housing formation process 100 illustrated in FIG. 1.
The electronic device housing 200 includes a housing 202. The housing 202 include side members 204 and a bottom member 206. A translucent member 208 can be provided as a top surface for the electronic device housing 200. For example, the translucent member 208 can be a glass member, often referred to as a cover glass, or a polymer-based member (e.g., plastic).
The electronic device housing 200 can include a touch screen assembly 210. The touch screen assembly 210 can include a plurality of touch and display components that are laminated together. The touch and display components can, for example, include a display technology layer (e.g., LCD panel), a sensing layer (e.g., touch sensors) and/or a backlight layer. The touch screen assembly 210 can be secured to a bottom surface of the translucent member 208 by a layer of adhesive 212.
Additionally, the electronic device housing 200 can include mounting brackets 214 that are secured to the peripheral portion of the bottom surface of the translucent member 208 with a layer of adhesive 216. The mounting brackets 214 can be formed of metal (e.g., aluminum, stainless steel, titanium copper) or a polymer. The mounting brackets 214 can be thin such as on the order of 0.1-0.6 mm. In one embodiment, the mounting brackets 214 can include a pair of rails secured to opposite sides of the peripheral portion of the bottom surface of the translucent member 208 with the layer of adhesive 216.
The electronic device housing 200 can also include a frame 218. The frame 218 is provided within the electronic device housing 200 and provided adjacent to a bottom surface of the touch screen assembly 210. In one embodiment, there is a small gap between the frame 218 and the bottom surface on the touch screen assembly 210. The frame 218 can serve to provide stiffness to the electronic device housing 200 and can also provide a surface that protects the touch screen assembly 210. The frame 218 can be secured to the mounting brackets 214 or the side members 204 by any of a variety of techniques (e.g., welding, screws, snaps, adhesive).
An internal space 220 is provided internal to the electronic device housing 200 whereby various electrical components (e.g., including processor, memory, battery and circuit board) can be attached, affixed or placed so as to provide electronic operations for the electronic device.
In general, the various members, parts or assemblies of the electronic device housing 200 can be formed of any of a variety of materials, e.g., glass, polymers or metal. In one embodiment, the translucent member 208 is glass, the mounting brackets 214 and the frame 218 are formed from metal or polymer (e.g., plastic), and the housing 202 is formed from glass, polymer (e.g., plastic) or metal.
FIGS. 2B-2E are a cross-sectional assembly diagrams for the electronic device housing 200 shown in FIG. 2A, according to one embodiment. The FIGS. 2A-2D represent a sequence of exemplary assembly steps to assembly the electronic device housing 200.
In FIG. 2B, the translucent member 208 having a top surface 300 and a bottom surface 302 is provided. The bottom surface 302 of the translucent member 208 can have the adhesive 216 applied as a layer of adhesive at selected regions along certain sides of a periphery of the bottom surface 302 of the translucent member 208. The mounting brackets 214 can then be secured to the translucent member 208 via the adhesive 216.
In FIG. 2C, the touch screen assembly 210 can then be secured to the translucent member 208 through use of the layer of adhesive 212. Typically, the layer of adhesive 212 would be translucent (e.g., clear). Here, the top surface of the touch screen assembly 210 is secured to the bottom surface 302 of the translucent member 208.
In FIG. 2D, the frame 218 can then be secured to the mounting brackets 214. The frame 218 can be secured to the mounting brackets 214 or the side members 304 through use of adhesive, welds, screws, etc. When attached, the frame 218 is adjacent a bottom surface 304 of the touch screen assembly 210. However, the frame 218 is typically not (but could be) contacting the bottom surface 304 of the touch screen assembly 210. Instead, there is a small gap 306 between the frame 218 and the bottom surface 304 of the touch screen assembly 210.
In FIG. 2E, the assembly resulting at FIG. 2D can then be inserted into the housing 202 for the electronic device. The assembly can be secured to the housing 202. For example, the assembly can be secured in place through use of adhesive, snaps, welds, screws, etc. In one embodiment, the mounting brackets 214 can be secured to side members 204 of the housing 202. Once the assembly resulting at FIG. 2D is inserted and then secured, the electronic device housing 200 as shown in FIG. 2A results.
FIG. 3 is a cross-sectional view of an electronic device housing 300 according to one embodiment. The electronic device housing 300 is generally similar to the electronic device housing 200 illustrated in FIG. 2A. The electronic device housing 300 includes a housing 302. The housing 302 include side members 304 and a bottom member 306. A translucent member 308 can be provided as a top surface for the electronic device housing 300. For example, the translucent member 308 can be a glass member, often referred to as a cover glass, or a polymer-based member (e.g., plastic).
The electronic device housing 300 can include a touch screen assembly 310. The touch screen assembly 310 can include a plurality of touch and display components that are laminated together. The touch and display components can, for example, include a display technology layer (e.g., LCD panel), a sensing layer (e.g., touch sensors) and/or a backlight layer. The touch screen assembly 310 can be secured to the a bottom surface of the translucent member 308 by a layer of adhesive 312.
Additionally, the electronic device housing 300 can include mounting brackets 314 that are secured to the peripheral portion of the bottom surface of the translucent member 308 with a layer of adhesive 316. The mounting brackets 314 can be formed of metal (e.g., aluminum, stainless steel, titanium copper) or a polymer. The mounting brackets 314 can be thin such as on the order of 0.1-0.6 mm. The configuration and placement of the mounting brackets 314 can be the same as the mounting brackets 214 used in FIG. 2A, except that the mounting brackets 314 can, in one embodiment, be longer (i.e., have greater height) than the mounting brackets 214. In one embodiment, the mounting brackets 314 can include a pair of rails secured to opposite sides of the peripheral portion of the bottom surface of the translucent member 308 with the layer of adhesive 316.
The electronic device housing 300 can also include a frame 318. The frame 318 is provided within the electronic device housing 300 and provided adjacent to a bottom surface of the touch screen assembly 310. In one embodiment, there is a small gap between the frame 318 and the bottom surface on the touch screen assembly 310. In another embodiment, there is no gap between the frame 318 and the bottom surface on the touch screen assembly 310. The frame 318 can serve to provide stiffness to the electronic device housing 300 and can also provide a surface that protects the touch screen assembly 310. The frame 318 can be secured to the mounting brackets 314 or the side members 304 by any of a variety of techniques (e.g., welding, screws, snaps, adhesive). The configuration and placement of the frame 318 can be the same as the frame 218 used in FIG. 2A, except that the frame 318 can be secured to the mounting brackets 314 at a lower position than used in FIG. 2A.
An internal space 320 is provided internal to the electronic device housing 300 whereby various electrical components (e.g., including processor, memory, battery and circuit board) can be attached, affixed or placed so as to provide electronic operations for the electronic device.
In general, the various members, parts or assemblies of the electronic device housing 300 can be formed of any of a variety of materials, e.g., glass, polymers or metal. In one embodiment, the translucent member 308 is glass, the mounting brackets 314 and the frame 318 are formed from metal or polymer (e.g., plastic), and the housing 302 is formed from glass, polymer (e.g., plastic) or metal.
Additionally, in one embodiment, such as shown in FIG. 3, a top portion of the mounting bracket 314 that is secured to the bottom surface of the translucent member 308 with the layer of adhesive 316 can slightly vertically overlap with a least one layer of the touch screen assembly 310. For example, FIG. 3 illustrates the top portion of the mounting bracket 314 that is secured to the bottom surface of the translucent member 308 with the layer of adhesive 316 being slightly overlapped (e.g., horizontally overlapped) with a middle layer of the touch screen assembly 300. The ability to overlap these components slightly in the horizontal direction provide for improved compact designs that are able to have even further reduced border thickness (between edge of active display area and edge of housing).
FIG. 4A illustrates a side member 400 and a mounting bracket 402 of an electronic device housing according to one embodiment. The electronic device housing can, for example, pertain the electronic device housing 200 illustrated in FIG. 2A or the electronic device housing 300 illustrated in FIG. 3. In FIG. 4A, the mounting bracket 402 is attached to the side member 400 by welds 404.
FIG. 4B illustrates a side member 420 and a mounting bracket 422 of an electronic device housing according to one embodiment. The electronic device housing can, for example, pertain the electronic device housing 200 illustrated in FIG. 2A or the electronic device housing 300 illustrated in FIG. 3. In FIG. 4B, the mounting bracket 422 is attached to the side member 420 by at least one snap 424 which provides a mechanical retention therebetween.
FIG. 4C illustrates a side member 440, a mounting bracket 442 and a frame 444 (portion thereof) of an electronic device housing according to one embodiment. The electronic device housing can, for example, pertain the electronic device housing 200 illustrated in FIG. 2A or the electronic device housing 300 illustrated in FIG. 3. In FIG. 4C, the mounting bracket 442 is attached to the side member 440 by any of the above-noted techniques (e.g., adhesive, snap, screw, weld), and the frame 444 can be secured to the mounting bracket 442 by at least one screw 446 (or bolt). In an alternative embodiment, the screw 446 can further extend into or through the side member 440 to secure the mounting member 442 and the frame 444 to themselves and the side member 440.
In FIGS. 1-3 discussed above, the mounting bracket is secured to the bottom surface of a translucent member that can serve as a significant outer surface for a housing of an electronic device, such as a portable electronic device. However, in other embodiment, a frame or other structural component can instead be secured to the bottom surface of the translucent member
FIG. 5 a flow diagram of a housing formation process 500 according to one embodiment. The housing formation process 500 can operate to produce a housing for an electronic device, or at least a portion of such a housing.
The housing formation process 500 can initially obtain 502 a glass member. A top surface of the glass member can represent an outer surface for the housing, and the bottom surface of the glass member is an inner surface that is not exposed. The glass member can serve as a significant outer surface for the housing. For example, the glass member can correspond to a top surface for the housing. Alternatively or additionally, the glass member can correspond to a bottom surface for the housing. The glass member is typically thin, particularly when used with portable electronic devices. In one embodiment, the glass member has a thickness of less than 5 mm, or more particularly less than 1 mm.
After the glass member has been obtained 502, a frame can be attached 504 to a peripheral region on the bottom surface of the glass member. The frame, once attached 504, can serve to protect the touch screen assembly from damage and can provide structural stiffness to the housing for the electronic device. When attached, the frame is adjacent to the bottom surface of the touch screen assembly. The frame can be attached to the bottom surface of the glass member using an adhesive. The adhesive can, for example, by provided as film layer. Also, the manner by which the adhesive is deposited can vary. In one implementation, the adhesive can be deposited by forming a peripheral pattern of adhesive that can be placed on the bottom surface of the glass member so as to provide adhesive at the regions on the bottom surface of the glass member where the mounting brackets are to be placed. In another implementation, the adhesive can be screen printed on appropriate peripheral portions on the bottom surface of the glass member. In still another embodiment, the adhesive can be applied to the surface of the mounting brackets that is to be secured to the bottom surface of the glass member.
After the frame has been attached 504, a touch screen assembly can be attached 506 to a central region of the bottom surface of the glass member. The touch screen assembly can include a plurality of touch and display components that are laminated together to implement a touch screen. The touch and display components can, for example, include a display technology layer (e.g., LCD panel), a sensing layer (e.g., touch sensors) and/or a back light component.
The touch screen assembly can be attached 506 using an adhesive. The adhesive can, for example, by provided as film or layer. Also, the manner by which the adhesive is deposited can vary. In one implementation, the adhesive can be deposited by forming a pattern of adhesive (e.g., translucent adhesive) that can be placed on the bottom surface of the glass member so as to provide adhesive at the bottom surface of the glass member where the touch screen assembly is to be placed. The adhesive can additionally or alternatively be deposited on the top surface of the touch screen assembly. In another implementation, the adhesive can be screen printed or sprayed on appropriate portion of the bottom surface of the glass member and/or a top surface of the touch screen assembly.
Next, after the touch screen assembly has been attached 506, mounting brackets can be attached 508 to the frame. In one embodiment, the frame can be attached 508 to the frame using any of a variety of means, such as adhesive, screws, snaps or welds.
After the mounting brackets have been attached 508, the resulting display assembly, including the glass member, the mounting brackets, the touch screen assembly and the frame can be secured 550 to the housing of the electronic device. For example, the resulting display assembly can be secured to the housing of the electronic device by way of the mounting brackets and/or the frame. Following the block 550, the housing formation process 500 can end.
FIG. 6 is a cross-sectional view of an electronic device housing 600 according to one embodiment. In one embodiment, the electronic device housing 600 can result from the housing formation process 500 illustrated in FIG. 5.
The electronic device housing 600 includes a housing 602. The housing 602 include side members 604 and a bottom member 606. A translucent member 608 can be provided as a top surface for the electronic device housing 600. For example, the translucent member 608 can be a glass member, often referred to as a cover glass, or a polymer-based member (e.g., plastic).
The electronic device housing 600 can include a touch screen assembly 610. The touch screen assembly 610 can include a plurality of touch and display components that are laminated together. The touch and display components can, for example, include a display technology layer (e.g., LCD panel), a sensing layer (e.g., touch sensors) and/or a backlight layer. The touch screen assembly 610 can be secured to a bottom surface of the translucent member 608 by a layer of adhesive 612.
Additionally, the electronic device housing 600 can include a frame 614 which can be secured to the peripheral portion of the bottom surface of the translucent member 608 with a layer of adhesive 616. The frame 614 is provided within the electronic device housing 600 and provided adjacent to a bottom surface of the touch screen assembly 610. In one embodiment, there is a small gap between the frame 614 and the bottom surface on the touch screen assembly 610. In another embodiment, there is no gap between the frame 614 and the bottom surface on the touch screen assembly 610. The frame 614 can serve to provide stiffness to the electronic device housing 600 and can also provide a surface that protects the touch screen assembly 610. Additionally, in one embodiment, a top portion of the frame 614 that is secured to the bottom surface of the translucent member 608 with the layer of adhesive 616 can slightly overlap (e.g., horizontally overlapped) with a least one layer of the touch screen assembly 610. For example, FIG. 6 illustrates the top portion of the frame 614 that is secured to the bottom surface of the translucent member 608 with the layer of adhesive 616 being slightly vertically overlapped with a middle layer of the touch screen assembly. The ability to overlap slightly in the horizontal direction provide for improved compact designs that are able to have even further reduced border thickness (between edge of active display area and edge of housing).
The electronic device housing 600 can include mounting brackets 618. The mounting brackets 618 can be secured to the side members 604. The mounting brackets 614 can be formed of metal (e.g., aluminum, stainless steel, titanium copper) or a polymer. The mounting brackets 614 can be thin such as on the order of 0.1-0.6 mm. The mounting brackets 618 can be secured to the frame 614 as well as to the side members 604 by any of a variety of techniques (e.g., welding, screws, snaps, adhesive).
An internal space 620 is provided internal to the electronic device housing 600 whereby various electrical components (e.g., including processor, memory, battery and circuit board) can be attached, affixed or placed so as to provide electronic operations for the electronic device.
In general, the various members, parts or assemblies of the electronic device housing 600 can be formed of any of a variety of materials, e.g., glass, polymers or metal. In one embodiment, the translucent member 608 is glass, the frame 614 and the mounting brackets 618 are formed from metal or polymer (e.g., plastic), and the housing 602 is formed from glass, polymer (e.g., plastic) or metal.
In FIGS. 1-6 discussed above, the embodiment secure a structural component, such as a mounting bracket or a frame, to the bottom surface of a translucent member (e.g., cover glass) that can serve as a significant outer surface for a housing of an electronic device, such as a portable electronic device. However, in other embodiments, a structural component, such as a mounting bracket or frame, can instead be secured to a display assembly, such as a bottom or intermediate surface of the display assembly.
FIG. 7 a flow diagram of a housing formation process 700 according to one embodiment. The housing formation process 700 can operate to produce a housing for an electronic device, or at least a portion of such a housing.
The housing formation process 700 can initially obtain 702 a glass member. A top surface of the glass member can represent an outer surface for the housing, and the bottom surface of the glass member is an inner surface that is not exposed. The glass member can serve as a significant outer surface for the housing. For example, the glass member can correspond to a top surface for the housing. Alternatively or additionally, the glass member can correspond to a bottom surface for the housing. The glass member is typically thin, particularly when used with portable electronic devices. In one embodiment, the glass member has a thickness of less than 5 mm, or more particularly less than 1 mm.
After the glass member has been obtained 702, a display screen assembly can be attached 704 to the bottom surface of the glass member. The display screen assembly can include a plurality of display components that are laminated together to implement a touch screen. The display screen assembly can also include a touch component, which can render the display screen assembly a touch screen assembly. The touch and display components can, for example, include a sensing layer (e.g., touch sensors), a display technology layer (e.g., LCD panel) and/or a back light component.
The display screen assembly can be attached 704 using an adhesive. The adhesive can, for example, by provided as film or layer. Also, the manner by which the adhesive is deposited can vary. In one implementation, the adhesive can be deposited by forming a pattern of adhesive (e.g., translucent adhesive) that can be placed on the bottom surface of the glass member so as to provide adhesive at the bottom surface of the glass member where the display screen assembly is to be placed. The adhesive can additionally or alternatively be deposited on the top surface of the display screen assembly. In another implementation, the adhesive can be screen printed or sprayed on appropriate portion of the bottom surface of the glass member and/or a top surface of the display screen assembly.
Next, mounting brackets can be attached 706 to a peripheral region on the bottom surface of the display screen assembly. The mounting brackets can be attached to the bottom surface of the display screen assembly using an adhesive. The adhesive can, for example, by provided as a film or layer. Also, the manner by which the adhesive is deposited can vary. In one implementation, the adhesive can be deposited by forming a peripheral pattern of adhesive that can be placed on the bottom surface of the glass member so as to provide adhesive at the regions on the bottom surface of the display screen assembly where the mounting brackets are to be placed. In another implementation, the adhesive can be screen printed on appropriate peripheral portions on the bottom surface of the glass member. In still another embodiment, the adhesive can be applied to the surface of the mounting brackets that is to be secured to the bottom surface of the display screen assembly.
After the mounting brackets have been attached 706, a frame can be attached 708 such that the frame is adjacent to the bottom surface of the display screen assembly. The frame being attached 708 can serve to protect the display screen assembly from damage and can provide structural stiffness to the housing for the electronic device. The frame can be attached 708 to the mounting brackets or side members of the housing for the electronic device. In one embodiment, the frame can be attached 708 using any of a variety of means, such as adhesive, screws, snaps or welds. In some embodiment, the frame need not be included.
After the frame has been attached 708, the resulting display assembly, including the glass member, the display screen assembly, the mounting brackets and the frame can be secured to the housing of the electronic device. For example, the resulting display assembly can be secured 710 to the housing of the electronic device by way of the mounting brackets and/or the frame. Following the block 710, the housing formation process 700 can end.
FIG. 8A is a cross-sectional view of an electronic device housing 800 according to one embodiment. In one embodiment, the electronic device housing 800 can result from the housing formation process 700 illustrated in FIG. 7.
The electronic device housing 800 includes a housing 802. The housing 802 include a side member 804 and a bottom member 806. A translucent member 808 can be provided as a top surface for the electronic device housing 800. For example, the translucent member 808 can be a glass member, often referred to as a cover glass, or a polymer-based member (e.g., plastic).
The electronic device housing 800 can include a display screen assembly 810. The display screen assembly 810 can be secured to a bottom surface of the translucent member 808 by a layer of adhesive 812 (e.g., translucent adhesive). The display screen assembly 810 can include one or a plurality of distinct technology components that can be laminated together. In one implementation, the technology components can, for example, include a sensing layer (e.g., touch sensors), a display technology layer (e.g., LCD panel) and/or a backlight layer. In another implementation, the technology components can, for example, include an organic light emitting diode (OLED) panel with or without a sensing layer (e.g., touch sensors).
Additionally, the electronic device housing 800 can include mounting brackets 814 that are secured to the peripheral portion of the bottom surface of the display screen assembly 810 with a layer of adhesive 816. The mounting brackets 814 can be formed of metal (e.g., aluminum, stainless steel, titanium copper) or a polymer. The mounting brackets 814 can be thin such as on the order of 0.1-0.6 mm. In one embodiment, the mounting brackets 814 can include a pair of rails secured to opposite sides of the peripheral portion of the bottom surface of the display screen assembly 810 with the layer of adhesive 816.
An internal space 818 is provided internal to the electronic device housing 800 whereby various electrical components (e.g., including processor, memory, battery and circuit board) can be attached, affixed or placed so as to provide electronic operations for the electronic device.
In general, the various members, parts or assemblies of the electronic device housing 800 can be formed of any of a variety of materials, e.g., glass, polymers or metal. In one embodiment, the translucent member 808 is glass, the mounting brackets 814 are formed from metal or polymer (e.g., plastic), and the housing 802 is formed from glass, polymer (e.g., plastic) or metal.
FIG. 8B is a cross-sectional view of an electronic device housing 800′ according to one embodiment. The electronic device housing 800′ is generally similar to the electronic device housing 800 illustrated in FIG. 8A. In addition, however, the electronic device housing 800′ can also include a frame 820. The frame 820 is provided within the electronic device housing 800′ and can be provided adjacent to a bottom surface of the display screen assembly 810. In one embodiment, there is a small gap between the frame 820 and the bottom surface on the display screen assembly 810. In another embodiment, there is no gap between the frame 820 and the bottom surface on the display screen assembly 810. The frame 820 can serve to provide stiffness to the electronic device housing 800′ and can also provide a surface that protects the display screen assembly 810. The frame 820 can be secured to the mounting brackets 814 or the side members 804 by any of a variety of techniques (e.g., welds, screws, snaps, adhesive).
FIG. 8C is a cross-sectional view of an electronic device housing 800′′ according to one embodiment. The electronic device housing 800′′ is generally similar to the electronic device housing 800′ illustrated in FIG. 8B. In addition, however, the electronic device housing 800′′ depicts one embodiment of the display screen assembly 810 has having at least three (3) distinct technology layers, namely, a Liquid Crystal Display (LCD) panel layer 810a (e.g., TFT LCD), a touch sensing layer 810b and a backlight layer 810c. These layers themselves can include multiple layers or additional layers can also be present, such as polarizers, color filters, etc. In this embodiment, the mounting brackets 814 are secured to the peripheral portion of the bottom surface of the backlight layer 810c with the layer of adhesive 816.
Advantageously, in the electronic device housings 800, 800′ and 800′′, the mounting brackets 814 can be provided within the periphery of the translucent member 808. In some embodiments, the mounting brackets 814 can be provided within the periphery of the display screen assembly 810 or at least one component layer thereof. For example, in FIG. 8C, the mounting brackets 814 are within the periphery of the translucent member 808 and the touch sensing layer 810b, which can be considered an intermediate layer of the display screen assembly 810.
FIG. 9A is a cross-sectional view of an electronic device housing 900 according to one embodiment. In one embodiment, the electronic device housing 900 can result from the housing formation process 700 illustrated in FIG. 7.
The electronic device housing 900 includes a housing 902. The housing 902 include a side member 904 and a bottom member 906. A translucent member 908 can be provided as a top surface for the electronic device housing 900. For example, the translucent member 908 can be a glass member, often referred to as a cover glass, or a polymer-based member (e.g., plastic).
The electronic device housing 900 can include an upper screen portion 910a and a lower screen portion 910b. The upper screen portion 910a and the lower screen portion 910b can together form a display screen assembly 910. Each of the upper and lower screen portions 910a, 910b can include one or more technology components. If there are more than one technology components, the technology components can be laminated together. For example, in one implementation, the upper screen portion 910a can include a Liquid Crystal Display (LCD) panel layer (e.g., TFT LCD) and a touch sensing layer, and the lower screen portion 910b can include a backlight layer.
The upper screen portion 910a can be secured to a bottom surface of the translucent member 908 by a layer of adhesive 912 (e.g., translucent adhesive). Additionally, the electronic device housing 900 can include mounting brackets 914 that are secured to the peripheral portion of the bottom surface of the upper screen portion 910a with a layer of adhesive 916. The mounting brackets 914 can be formed of metal (e.g., aluminum, stainless steel, titanium copper) or a polymer. The mounting brackets 914 can be thin such as on the order of 0.1-0.6 mm. In one embodiment, the mounting brackets 914 can include a pair of rails secured to opposite sides of the peripheral portion of the bottom surface of the upper screen portion 910a with the layer of adhesive 916. In addition, the lower screen portion 910b can be secured to the mounting brackets 914, For example, adhesive or mechanical members (welds, snaps, screws, etc.) can be use to secured the lower screen portion 910b to the mounting brackets 914.
An internal space 918 is provided internal to the electronic device housing 900 whereby various electrical components (e.g., including processor, memory, battery and circuit board) can be attached, affixed or placed so as to provide electronic operations for the electronic device.
In general, the various members, parts or assemblies of the electronic device housing 900 can be formed of any of a variety of materials, e.g., glass, polymers or metal. In one embodiment, the translucent member 908 is glass, the mounting brackets 914 are formed from metal or polymer (e.g., plastic), and the housing 902 is formed from glass, polymer (e.g., plastic) or metal.
FIG. 9B is a cross-sectional view of an electronic device housing 900′ according to one embodiment. The electronic device housing 900′ is generally similar to the electronic device housing 900 illustrated in FIG. 9A. In addition, however, the electronic device housing 900′ can also include a frame 920. The frame 920 is provided within the electronic device housing 900′ and can be provided adjacent to a bottom surface of the lower screen portion 910b. In one embodiment, there is a small gap between the frame 920 and the bottom surface of the lower screen portion 910b. In one embodiment, there is no small gap between the frame 920 and the bottom surface of the lower screen portion 910b. The frame 920 can serve to provide stiffness to the electronic device housing 900′ and can also provide a surface that protects at least the lower screen portion 910b. The frame 920 can be secured to the mounting brackets 914 or the side members 904 by any of a variety of techniques (e.g., welds, screws, snaps, adhesive).
Advantageously, in the electronic device housings 900 and 900′, the mounting brackets 914 can be provided within the periphery of the translucent member 908. In some embodiments, the mounting brackets 914 can be provided (completely or partially) within the periphery of the upper screen portion 910a. For example, in FIGS. 9A and 9B, the mounting brackets 914 are within the periphery of the translucent member 908 and partially within the upper screen portion 910a. 
According to other embodiments, additional adhesive can be used to further secure a display screen assembly and/or translucent member (e.g., cover glass) within a housing. FIGS. 10A and 10B are exemplary embodiments that used additional adhesive for additional or alternative structural support.
FIG. 10A is a cross-sectional view of an electronic device housing 1000 according to one embodiment. The electronic device housing 1000 is generally similar to the electronic device housing 800 illustrated in FIG. 8A. In addition, however, the electronic device housing 1000 can also include adhesive 1002 (e.g., thin adhesive layer) provided between at least a portion of the periphery of the translucent member 808 and the inner surface of the side member 804. The adhesive 1002 can serve to secure the translucent member 808 and the display screen assembly 810 to the side member 804 of the electronic device housing 1000. For example, as shown in FIG. 10A, the adhesive 1002 can assist the mounting brackets 814 in securing the secure the translucent member 808 and the display screen assembly 810 to the side member 804 of the electronic device housing 1000. In an alternative embodiment, the adhesive 1002 could secure the translucent member 808 and the display screen assembly 810 to the side member 804 of the electronic device housing 1000 without use of any mounting brackets.
FIG. 10B is a cross-sectional view of an electronic device housing 1050 according to one embodiment. The electronic device housing 1050 is generally similar to the electronic device housing 900 illustrated in FIG. 9A. In addition, however, the electronic device housing 1050 can also include adhesive 1052 (e.g., thin adhesive layer) provided between at least a portion of the periphery of the translucent member 908 and the inner surface of the side member 904. The adhesive 1052 can serve to secure the translucent member 908 and the display screen assembly 910 to the side member 904 of the electronic device housing 1050. For example, as shown in FIG. 10B, the adhesive 1052 can assist the mounting brackets 914 in securing the secure the translucent member 908 and the display screen assembly 910 (e.g., at least the upper screen portion 910a) to the side member 904 of the electronic device housing 1050. In an alternative embodiment, the adhesive 1052 could secure the translucent member 908 and the display screen assembly 910 to the side member 904 of the electronic device housing 1050 without use of any mounting brackets.
FIG. 11 is a perspective diagram of a handheld electronic device 1100 according to one embodiment. The handheld electronic device 1100 may include a housing 1102, e.g., a periphery member, that is arranged to at least partially surround the periphery of the handheld electronic device 1100 to form some or all of the outer-most side, top and bottom surfaces of the handheld electronic device 1100. The handheld electronic device 1100 also includes a cover piece 1104 that is arranged to be substantially coupled to housing 1102 to effectively enclose an inner volume of the handheld electronic device 1100. The cover piece 1104 may include a glass member 1106, e.g., cover glass provided over a display of the handheld electronic device 1100. In one embodiment, the cover piece 1104 includes a protective frame 1108 in which glass member 1106 is held. The glass member 1106 can serve as the top surface of the housing 1102. A display region 1107 of the glass member 1106 is that portion of the glass member 1106 that corresponds to the display (e.g., active display region). Using the techniques described herein, the display can be secured to the housing 1102 such that the active display region is able to nearly reach the edge of the housing. In other words, the border thickness (t) at the sides of the housing 1102 is able to be reduced as compared to conventional designs. In one embodiment, the border thickness (t) can be 2 mm or less.
The housing 1102 may have any suitable shape, including, for example, one or more elements that may be combined to form a rectangular structure. The housing 1102 may at least partially enclose an inner volume in which electronic device components may be assembled and retained. The shape of housing 1102 may substantially define boundaries of the inner volume, and may be determined based upon the size and type of components placed within the inner volume.
The housing 1102 may have any suitable size, and the size may be determined based on any suitable criteria. Suitable criteria may include, but are not limited to including, aesthetics or industrial design, structural considerations, components required for a desired functionality, and/or product design. The housing 1102 may have any suitable cross-section, including for example a variable cross-section or a constant cross-section. In some embodiments, the cross-section may be selected based on desired structural properties for housing 1102. For example, the cross-section of housing 1102 may be substantially rectangular, such that the height of housing 1102 is substantially larger than the width of housing 1102. Such a cross-sectional shape may provide structural stiffness in compression and tension, as well as in bending. In some embodiments, the dimensions of housing 1102 cross-section may be determined relative to the dimensions of the components contained by housing 1102.
In some embodiments, housing 1102 may include features 1110. The features 1110 may generally include one or more openings, knobs, extensions, flanges, chamfers, or other features for receiving components or elements of the device. The features 1110 of the housing 1102 extend from any surface of housing 1102, including for example from internal surfaces, e.g., to retain internal components or component layers, or from external surfaces. In particular, the housing 1102 may include a slot or opening (not shown) for receiving a card or tray within the handheld electronic device 1100. The housing 1102 may also include a connector opening (not shown), e.g., for a 30-pin connector, through which a connector may engage one or more conductive pins of the handheld electronic device 1100. Other features 1110 included on the housing 1102 may include, but are not limited to, an opening for providing audio to a user, an opening for receiving audio from a user, an opening for a connector (e.g., audio connector or power supply connector), and/or features for retaining and enabling a button such as a volume control or silencing switch.
Additional details on electronic device housings using insert molding for certain components are contained in: (i) U.S. application Ser. No. 12/895,822, filed Sep. 30, 2010, and entitled “Insert Molded Device Housings for Portable Electronic Devices,” which is hereby incorporated herein by reference; and (ii) U.S. application Ser. No. 12/944,671, filed Nov. 11, 2010, and entitled “Insert Molding Around Glass Members for Portable Electronic Devices,” which is hereby incorporated herein by reference.
Although mounting brackets and a frame for a display assembly are discussed above as separate components (which can facilitate assembly), it should be understood that the mounting brackets and frame are structural components that are used in an electronic device. In one embodiment, the mounting brackets and frame are integral. In another embodiment, the mounting brackets and frame are interchangeable.
Although various embodiments discussed herein include a touch screen assembly, various other embodiments may not include touch screen capabilities. In such other embodiments, a display assembly would be used in place of the touch screen assembly. The display assembly includes at least a display technology layer. The display assembly can also include a back light component.
In general, the steps associated with the methods of the present invention may vary widely. Steps may be added, removed, altered, combined, reordered without departing from the spirit or the scope of the present invention.
The various aspects, features, embodiments or implementations of the invention described above may be used alone or in various combinations.
While this specification contains many specifics, these should not be construed as limitations on the scope of the disclosure or of what may be claimed, but rather as descriptions of features specific to particular embodiment of the disclosure. Certain features that are described in the context of separate embodiments may also be implemented in combination. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments separately or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
While embodiments and applications have been shown and described, it would be apparent to those skilled in the art having the benefit of this disclosure that many more modifications than mentioned above are possible without departing from the inventive concepts herein.

## Claims

1. A portable electronic device, comprising:
an electronic device housing including a bottom surface and side surfaces;
a glass cover for a top surface for the electronic device housing, the glass cover also having a bottom surface;
a display screen assembly having a top surface and a bottom surface, the display screen assembly being provided internal to the electronic device housing, and the top surface of the display screen assembly being secured to a bottom surface of the glass cover; and
at least one peripheral internal support structure secured to a peripheral region of the bottom surface of the glass cover, and secured to the electronic device housing, and wherein the bottom surface of the display screen assembly is not in contact with a support structure.

2. The portable electronic device as recited in claim 1, wherein the at least one peripheral internal support structure is secured to at least one of the side surfaces of the electronic device housing.

3. The portable electronic device as recited in claim 2, wherein the at least one peripheral internal support structure comprises at least one rail.

4. The portable electronic device as recited in claim 1, wherein the display screen assembly comprises a Liquid Crystal Display (LCD) layer.

5. The portable electronic device as recited in claim 1, wherein at least a portion of a periphery of the glass cover is secured to the at least one peripheral internal support structure with an adhesive.

6. The portable electronic device as recited in claim 1, wherein the portable electronic device comprises:
at least one surface support structure secured within the electronic device housing such that the at least one surface support structure is adjacent the bottom surface of the display screen assembly.

7. The portable electronic device as recited in claim 6, wherein the at least one surface support structure comprises a frame.

8. The portable electronic device as recited in claim 6, wherein the at least one surface support structure provides rigidity to the electronic device housing.

9. The portable electronic device as recited in claim 6, wherein the at least one peripheral internal support structure and the at least one surface support structure are metal.

10. The portable electronic device as recited in claim 6, wherein a thickness of each of the at least one peripheral internal support structure and the at least one surface support structure is about 0.1-0.6 mm thick.

11. The portable electronic device as recited in claim 10, wherein the at least one peripheral internal support structure and the at least one surface support structure are formed from stainless steel.

12. A method for assembling an electronic device having a product housing, the method comprising:
obtaining a glass cover having a top surface and a bottom surface, the top surface providing an outer surface for substantially all of at least one surface of the electronic device;
attaching a top surface of a display screen assembly to the bottom surface of the glass cover;
attaching at least one peripheral support structure to a peripheral region of a bottom surface of the glass cover, wherein the glass cover, the display screen assembly and the at least one peripheral support structure forms a resulting display assembly; and
thereafter securing the resulting display assembly to the product housing using the at least one peripheral support structure, wherein the bottom surface of the display screen assembly is not in contact with a support structure.

13. The method as recited in claim 12, wherein the method further comprises:
attaching at least one surface support structure to the at least one peripheral support structure such that the at least one surface support structure is adjacent but not against the bottom surface of the display screen assembly.

14. The method as recited in claim 12, wherein the at least one peripheral support structure includes or couples to a surface support structure that is adjacent and extends across the bottom surface of the display screen assembly.

15. The method as recited in claim 12, wherein the at least one peripheral support structure is attached to the peripheral region of the bottom surface of the glass cover such that the at least one peripheral support structure is within a periphery of the glass cover.

16. The portable electronic device as recited in claim 1, wherein the display screen assembly comprises a touch screen assembly, the touch screen assembly having technology layers that include at least a first technology layer and a second technology layer.

17. The portable electronic device as recited in claim 16, wherein the first technology layer is a display technology layer and the second technology layer is sensing layer.

18. The portable electronic device as recited in claim 17, wherein the display technology layer is an LCD panel.

19. The portable electronic device as recited in claim 18, wherein the display screen assembly further comprises a back light component.

20. The portable electronic device as recited in claim 7, wherein a separation gap is between the frame and the bottom surface of the display screen assembly.

21. The portable electronic device as recited in claim 1, further comprising an additional peripheral internal support structure and wherein the additional peripheral internal support structures comprise a pair of rails secured at opposite sides of the peripheral region of the glass cover.

22. The portable electronic device as recited in claim 1, wherein the at least one peripheral internal support structure is secured to the electronic device housing and is configured to secure the glass cover and the display screen assembly to the electronic device housing.