Cover glass for mobile device

• US 10,069,952 B2
• Filed: 02/09/2015
• Issued: 09/04/2018
• Est. Priority Date: 02/13/2014
• Status: Active Grant

• Current Assignee: Magna Mirrors of America Incorporated (Magna International Incorporated)
• Original Assignee: Magna Mirrors of America Incorporated (Magna International Incorporated)
• Inventors: De Wind, Darryl P.
• Primary Examiner(s): Siddiqui, Kashif
• Application Number:
  US14/616,773
• Publication Number:
  US 20150229745A1
• Time in Patent Office: 1,303 Days
• CPC Class Codes: H04M 1/026 Details of the structure or mounting of specific components
• CPC Class Codes: H04M 1/0266 for a display module assembly

Abstract

A portable electronic device includes a housing and a glass cover panel having a generally planar central region and a rounded or curved perimeter region circumscribing the generally planar central region. The portable electronic device includes circuitry disposed in the housing and operable to detect a touch or proximity of a user at the glass cover panel at the generally planar central region. The rounded perimeter region has an exposed rounded surface circumscribing the generally planar central region and the housing does not overlap the rounded perimeter region of the glass cover panel. The rounded perimeter region may have a radius of curvature of greater than about 0.5 mm. The rounded perimeter region provides a smooth curved transition between a generally planar front surface of the generally planar central region of the glass cover panel and a side surface of the housing of the portable electronic device.

Claims

1. A portable electronic device, said portable electronic device comprising:

a housing;

a glass cover panel disposed at said housing, said glass cover panel comprising a generally planar central region and a rounded perimeter region circumscribing said generally planar central region;

wherein said glass cover panel comprises a generally planar front surface that is circumscribed by an exposed rounded surface;

wherein said generally planar front surface of said glass cover panel extends partially across said rounded perimeter region;

circuitry disposed in said housing and operable to detect a touch or proximity of a user at said generally planar front surface of said glass cover panel at said generally planar central region;

wherein said rounded perimeter region comprises said exposed rounded surface circumscribing said generally planar central region and wherein said housing does not overlap said exposed rounded surface and said generally planar front surface of said rounded perimeter region of said glass cover panel;

wherein said generally planar central region has a thickness spanning between said generally planar front surface and a rear surface of said generally planar central region;

wherein said rounded perimeter region of said glass cover panel has a thickness spanning between said generally planar front surface and a rear surface of said rounded perimeter region;

wherein said rear surface of said generally planar central region is recessed relative to said rear surface of said rounded perimeter region such that the thickness of said rounded perimeter region of said glass cover panel is greater than the thickness of said generally planar central region of said glass cover panel;

wherein the thickness of said generally planar central region is less than 1.5 mm;

wherein said exposed rounded surface of said rounded perimeter region has a radius of curvature of greater than 0.5 mm and less than 3 mm; and

wherein said rounded perimeter region comprises a polished rounded perimeter region that is polished to a water-clear finish.

2. The portable electronic device of claim 1, wherein said portable electronic device comprises one of (i) a smart phone, (ii) a cell phone, (iii) a tablet and (iv) a personal data device.

3. The portable electronic device of claim 1, wherein said exposed rounded surface of said rounded perimeter region provides a smooth curved transition between said generally planar front surface of said glass cover panel and a side surface of said housing of said portable electronic device.

4. The portable electronic device of claim 1, wherein said exposed rounded surface of said rounded perimeter region has a radius of curvature of less than 2.5 mm.

5. The portable electronic device of claim 1, wherein said generally planar central region has a thickness of less than 1 mm.

6. The portable electronic device of claim 1, wherein said exposed rounded surface of said rounded perimeter region has a varying radius of curvature.

7. The portable electronic device of claim 1, wherein said housing comprises a molded plastic housing.

8. The portable electronic device of claim 1, wherein no part of said housing extends beyond any part of said glass cover panel.

9. A portable electronic device, said portable electronic device comprising:

a housing;

a glass cover panel disposed at said housing, said glass cover panel comprising a generally planar central region and a rounded perimeter region circumscribing said generally planar central region;

wherein said glass cover panel comprises a generally planar front surface that is circumscribed by an exposed rounded surface;

wherein said generally planar front surface of said glass cover panel extends partially across said rounded perimeter region;

circuitry disposed in said housing and operable to detect a touch or proximity of a user at said generally planar front surface of said glass cover panel at said generally planar central region;

wherein said rounded perimeter region comprises said exposed rounded surface circumscribing said generally planar central region and wherein said housing does not overlap said exposed rounded surface and said generally planar front surface of said rounded perimeter region of said glass cover panel;

wherein said exposed rounded surface of said rounded perimeter region provides a smooth curved transition between said generally planar front surface of said glass cover panel and a side surface of said housing of said portable electronic device;

wherein no part of said housing extends beyond any part of said glass cover panel;

wherein said portable electronic device comprises one of (i) a smart phone, (ii) a cell phone, (iii) a tablet and (iv) a personal data device;

wherein said generally planar central region has a thickness spanning between said generally planar front surface and a rear surface of said generally planar central region;

wherein said rounded perimeter region of said glass cover panel has a thickness spanning between said generally planar front surface and a rear surface of said rounded perimeter region;

wherein said rear surface of said generally planar central region is recessed relative to said rear surface of said rounded perimeter region such that the thickness of said rounded perimeter region of said glass cover panel is greater than the thickness of said generally planar central region of said glass cover panel;

wherein the thickness of said generally planar central region has a thickness of is less than 1.5 mm;

wherein said exposed rounded surface of said rounded perimeter region has a radius of curvature of greater than 0.5 mm and less than 3 mm; and

wherein said rounded perimeter region comprises a polished rounded perimeter region that is polished to a water-clear finish.

10. The portable electronic device of claim 9, wherein the thickness of said generally planar central region is less than 1 mm and wherein said exposed rounded surface of said rounded perimeter region has a radius of curvature of less than about 2.5 mm.

11. The portable electronic device of claim 9, wherein the thickness of said generally planar central region is less than 1 mm.

12. A portable electronic device, said portable electronic device comprising:

a housing, wherein said housing comprises a molded plastic housing;

a glass cover panel disposed at said housing, said glass cover panel comprising a generally planar central region and a rounded perimeter region circumscribing said generally planar central region;

wherein said glass cover panel comprises a generally planar front surface that is circumscribed by an exposed rounded surface;

wherein said generally planar front surface of said glass cover panel extends partially across said rounded perimeter region;

circuitry disposed in said housing and operable to detect a touch or proximity of a user at said generally planar front surface of said glass cover panel at said generally planar central region; and

wherein said rounded perimeter region comprises said exposed rounded surface circumscribing said generally planar central region and wherein said housing does not overlap said exposed rounded surface and said generally planar front surface of said rounded perimeter region of said glass cover panel;

wherein said generally planar central region has a thickness spanning between said generally planar front surface and a rear surface of said generally planar central region;

wherein said rounded perimeter region of said glass cover panel has a thickness spanning between said generally planar front surface and a rear surface of said rounded perimeter region;

wherein said rear surface of said generally planar central region is recessed relative to said rear surface of said rounded perimeter region such that the thickness of said rounded perimeter region of said glass cover panel is greater than the thickness of said generally planar central region of said glass cover panel;

wherein said generally planar central region has a thickness of less than 1.5 mm and wherein said exposed rounded surface of said rounded perimeter region has a radius of curvature of greater than about 0.5 mm;

wherein said exposed rounded surface of said rounded perimeter region provides a smooth curved transition between said generally planar front surface of said glass cover panel and a side surface of said housing of said portable electronic device;

wherein said portable electronic device comprises one of (i) a smart phone, (ii) a cell phone, (iii) a tablet and (iv) a personal data device; and

wherein said rounded perimeter region comprises a polished rounded perimeter region that is polished to a water-clear finish.

13. The portable electronic device of claim 12, wherein no part of said housing extends beyond any part of said glass cover panel.