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US 2026/0040472 A1Published application
Electronic devices having differentially strengthened cover members
AssigneeApple Inc.
InventorsChristopher C. Bartlow, Dale N. Memering, Tyler A. Marshall
Life of this patent
Estimating the term…
Abstract
Differentially strengthened cover members for electronic devices are disclosed. The differentially strengthened cover members include at least one chemically strengthened zone that improves the resistance of the cover member to cracking. One or more of the chemically strengthened zones may cover or at least partially surround a portion of the cover member to be protected from damage.
Claims20
An electronic device comprising:
- an enclosure comprising a cover member defining an exterior surface and an interior surface, the cover member comprising:
- a first chemically strengthened zone defining a first stress profile comprising a first region of compressive stress extending from the exterior surface to the interior surface;
- and
- a second chemically strengthened zone surrounding the first chemically strengthened zone and defining a second stress profile comprising:
- a second region of compressive stress extending from the exterior surface;
- a third region of compressive stress extending from the interior surface;
- and
- a region of tensile stress between the second and the third regions of compressive stress.
5 more elements
An electronic device, comprising:
- a display;
- and
- an enclosure at least partially surrounding the display and including a cover member comprising:
- a window portion positioned over the display and having a window stress profile comprising:
- an exterior compressive stress region extending from an exterior surface of the cover member;
- an interior compressive stress region extending from an interior surface of the cover member;
- and
- a tensile stress region positioned between the exterior and the interior compressive stress regions;
- and
- a set of barrier portions arranged at least partially around the window portion, each barrier portion of the set of barrier portions having a respective barrier stress profile comprising a compressive stress region extending from the exterior surface of the cover member to a depth that is greater than a depth of the exterior compressive stress region of the window stress profile.
7 more elements
An electronic device comprising:
- an optical component;
- and
- an enclosure comprising a cover member comprising:
- a first chemically strengthened zone positioned over the optical component and having a first stress profile including a compressive stress region extending from an exterior surface of the cover member to a first depth;
- a second chemically strengthened zone surrounding the first chemically strengthened zone and defining a second stress profile comprising:
- an exterior compressive stress region extending from the exterior surface of the cover member to a second depth less than the first depth;
- an interior compressive stress region extending from an interior surface of the cover member;
- and
- a tensile stress region positioned between the exterior and the interior compressive stress regions.
6 more elements
Dependencies are inferred from the claim text.