Electronic device having a display and method of manufacture
A device housing assembly has a display module including a front pane and a rear pane, the rear pane having a section longer than the front pane in at least one direction. The housing assembly further has a transparent lens and plastic housing, the transparent lens having a front and rear surface; and an adhesive between the front transparent pane and the rear surface of the transparent lens. The housing includes a support structure molded to the rear surface of the transparent lens positioned proximally to the longer section of the rear pane and adjacent to the front pane of glass, the structure providing mechanical support for the rear pane.
1. A device housing assembly, comprising:
a display module including a front glass pane and a rear glass pane, the rear glass pane having a length longer than a length of the front glass pane such that a section of the rear glass pane extends beyond a terminal edge of the front glass pane;
a transparent lens having a front surface and a rear surface;
a circuit coupled to the section of the rear glass pane of the display module;
a flex member configured to provide an electrical connection between the circuit and a printed circuit board, a portion of the flex member coupled to the section of the rear glass pane of the display module;
an adhesive between the front glass pane and the rear surface of the transparent lens;
a mesh and gasket assembly positioned over a speaker opening, the mesh and gasket assembly including a mesh and at least one gasket, the mesh and gasket assembly being coupled to the rear surface of the transparent lens; and
a support structure coupled to the rear surface of the transparent lens at a location adjacent to an edge portion of the mesh and between the flex member and the rear surface of the transparent lens, the support structure configured to provide mechanical support for the section of the rear glass pane of the display module, the support structure configured to minimize the adhesive from interfering with a positioning of the mesh and gasket assembly, wherein the adhesive adheres together the support structure, the flex member, the front glass pane, the rear glass pane, and the transparent lens.
2. The device housing assembly as defined in claim 1 , wherein the support structure directly contacts the flex member to provide mechanical support for the section of the rear glass pane.
3. The device housing assembly as defined in claim 1 , wherein the adhesive extends between the rear surface of the transparent lens and the front glass pane.
4. The device housing assembly as defined in claim 1 , wherein the support structure does not directly contact the section of the rear glass plane.
5. The device housing assembly as defined in claim 1 , wherein the support structure comprises a chamfered edge.
6. The device housing assembly as defined in claim 1 , wherein the support structure is positioned at a distance away from a display driver integrated circuit (IC).
7. The device housing assembly as defined in claim 1 , wherein the support structure extends across only a partial width of the device housing assembly to block the adhesive from contacting the mesh and gasket assembly.
8. The device housing assembly as defined in claim 1 , wherein the support structure aligns at least one edge of the mesh and gasket assembly by contact between an edge of the support structure and a first edge of the mesh and gasket assembly.
9. The device housing assembly as defined in claim 8 , wherein the mesh and gasket assembly has a second edge opposite the first edge that aligns with a seat of a housing.
10. The device housing assembly as defined in claim 1 , wherein the support structure is located at a predefined distance from the speaker opening.
11. The device housing assembly as defined in claim 1 , further comprising a cushion pad adhered to a rear of the display module.
12. The device housing assembly as defined in claim 1 , wherein the transparent lens includes a perimeter edge defining a flange, wherein the device housing assembly further includes:
a plastic housing affixed to the flange of the perimeter edge, the plastic housing having a different material than the transparent lens; and
a joint adhesive applied to the flange, the joint adhesive affixing the plastic housing to the flange, wherein the plastic housing does not extend over the rear surface of the transparent lens.
13. The device housing assembly as defined in claim 12 , wherein the plastic housing includes:
a portion that is tangent to the front surface of the transparent lens; and
a portion that is tangent to the rear surface of the transparent lens.
14. The device housing assembly as defined in claim 13 , wherein the portion that is tangent to the rear surface of the transparent lens is at least partially coplanar with the rear surface of the transparent lens.
15. The device housing assembly as defined in claim 12 , wherein the perimeter edge includes a first chamfered corner, and the flange includes a second chamfered corner, a third chamfered corner, and a radial surface extending between the first and second chamfered corners.
16. The device housing assembly as defined in claim 12 , further comprising:
an oleophobic coating that is applied to the front surface of the transparent lens, the coating configured to prevent the joint adhesive from sticking to the front surface of the transparent lens; and
an opaque ink that is applied to the rear surface of the transparent lens, the opaque ink defining a viewing area.
17. The device housing assembly as defined in claim 12 , wherein the rear surface of the transparent lens and the plastic housing form a flush and consistent surface across a transition from the rear surface of the transparent lens to the plastic housing.