# US 12,215,053 B2 · Electronic devices with textured glass and glass ceramic components

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- Number: US 12,215,053 B2
- Document ID: US12215053B2
- Status: Granted
- Kind: B2
- Application number: 18/389,572
- Filed: 2023-11-14
- Published: 2024-03-14
- Granted: 2025-02-04
- Earliest claimed: 2020-09-02
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Andi M. Limarga; Akanksha Agrawal; Albert Ochagavia Tobena; Jason P. Shannon
- Web page: https://patentgrep.com/patent/US12215053B2

## CPC

- H04B 1/3827: Portable transceivers
- C03C 15/00: Surface treatment of glass, not in the form of fibres or filaments, by etching (etching or surface-brightening compositions, in general C09K13/00)
- C03C 17/002: {for flat glass, e.g. float glass}
- C03C 21/002: {to perform ion-exchange between alkali ions (C03C21/005 takes precedence)}
- C03C 2217/72: Decorative coatings
- H04B: TRANSMISSION
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS

## Abstract

Electronic devices including a textured component such as a cover member positioned over one or more components of the electronic device. Different surface regions of the textured component may be textured differently in order to provide optical contrast. For example, differently textured surface regions may differ in gloss, translucency, or both. In some cases the cover member defines a protruding feature and a surface region of the protruding feature is textured differently than an adjacent surface region.

## Claims

### Claim 1

A mobile phone comprising:
a display;
a set of camera modules; and
an enclosure comprising:
a housing;
a front cover assembly coupled to the housing and positioned over the display; and
a rear cover assembly coupled to the housing, comprising a glass cover member, and defining:
a base surface region;
a protruding feature comprising a raised surface region, the rear cover assembly producing optical contrast between the raised surface region and the base surface region; and
a set of through-holes, each through-hole of the set of through-holes extending through the protruding feature and defining an opening at the raised surface region, each camera module of the set of camera modules extending at least partially into a respective through-hole of the set of through-holes.

### Claim 2 (depends on 1)

The mobile phone of claim 1, wherein:
the raised surface region has a texture defined at least in part by a surface texture of the glass cover member; and
the gloss value of the raised surface region is less than the gloss value of the base surface region of the rear cover assembly.

### Claim 3 (depends on 2)

The mobile phone of claim 2, wherein the surface texture of the glass cover member produces a gloss value that is in a range from 5 gloss units to 50 gloss units as measured at 60 degrees.

### Claim 4 (depends on 2)

The mobile phone of claim 2, wherein:
the texture of the raised surface region is a second texture and the base surface region has a first texture;
the surface texture of the glass cover member is a second surface texture and the glass cover member further defines a first surface texture, different from the second surface texture; and
the first texture of the raised surface region is defined at least in part by the first surface texture of the glass cover member.

### Claim 5 (depends on 2)

The mobile phone of claim 2, wherein the surface texture of the glass cover member has:
a root mean square height (Sq) that is greater than zero and less than or equal to 5 micrometers; and
a root mean square gradient (Sdq) in a range from greater than zero to less than 1.

### Claim 6 (depends on 5)

The mobile phone of claim 5, wherein the surface texture of the glass cover member has a mean peak curvature (Ssc) that is greater than zero and less than 2 micrometers−1.

### Claim 7 (depends on 1)

The mobile phone of claim 1, wherein:
the glass cover member is a first glass cover member;
the base surface region has a texture defined at least in part by a surface texture of the first glass cover member;
the rear cover assembly further comprises a second glass cover member coupled to the first glass cover member and at least partially defining the protruding feature; and
the gloss value of the raised surface region is greater than the gloss value of the base surface region of the rear cover assembly.

### Claim 8

A mobile phone comprising:
a display;
an enclosure enclosing the display and comprising:
a housing;
a first cover assembly coupled to the housing, defining a front surface of the mobile phone, and positioned over the display; and
a second cover assembly coupled to the housing and comprising a glass cover member at least partially defining a protruding feature of the second cover assembly, the second cover assembly defining:
a first surface region having a first gloss value;
a second surface region of the protruding feature, the second surface region protruding with respect to the first surface region, defining a texture, and having a second gloss value that is lower than the first gloss value; and
a set of through-holes extending through the protruding feature; and
a set of camera modules, each camera module of the set of camera modules extending into a respective through-hole of the set of through-holes.

### Claim 9 (depends on 8)

The mobile phone of claim 8, wherein:
the texture of the second surface region is a second texture;
the first surface region defines a first texture;
a first surface texture of the glass cover member at least partially defines the first texture of the first surface region; and
a second surface texture, different from the first surface texture, of the glass cover member at least partially defines the second texture of the second surface region.

### Claim 10 (depends on 9)

The mobile phone of claim 9, wherein:
the second surface region defines a plateau; and
the protruding feature further defines a third surface region that defines a side of the protruding feature.

### Claim 11 (depends on 9)

The mobile phone of claim 9, wherein the second cover assembly further comprises a coating comprising at least one color layer, coupled to an interior surface of the glass cover member, and visible through the first surface region and the second surface region of the second cover assembly.

### Claim 12 (depends on 9)

The mobile phone of claim 9, wherein
the second cover assembly further comprises an oleophobic coating disposed over an exterior surface of the glass cover member;
the first surface texture of the glass cover member and the oleophobic coating together define the first texture of the first surface region; and
the second surface texture of the glass cover member and the oleophobic coating together define the second texture of the second surface region.

### Claim 13 (depends on 9)

The mobile phone of claim 9, wherein:
the first surface texture of the glass cover member has a root mean square height (Sq) in a range from 1 nm to 125 nm; and
the second surface texture of the glass cover member has a root mean square height (Sq) in a range from 0.25 micrometers to 2.5 micrometers.

### Claim 14 (depends on 13)

The mobile phone of claim 13, wherein the second surface texture of the glass cover member has:
a root mean square gradient (Sdq) in a range from 0.25 to less than 0.75; and
a mean pitch between peaks ranging from 5 microns to 20 microns.

### Claim 15

A mobile phone comprising:
a display;
a set of camera modules; and
an enclosure comprising:
a housing;
a front cover assembly coupled to the housing and positioned over the display; and
a rear cover assembly coupled to the housing and defining:
a first surface region having a first gloss value;
a protruding feature positioned over the camera assembly, at least partially surrounded by the first surface region, and comprising a second surface region having a second gloss value that is different from the first gloss value; and
a set of openings, each camera module of the set of camera modules extending at least partially into a respective opening of the set of openings.

### Claim 16 (depends on 15)

The mobile phone of claim 15, wherein:
the rear cover assembly comprises a glass cover member; and
the protruding feature is defined at least in part by the glass cover member.

### Claim 17 (depends on 16)

The mobile phone of claim 16, wherein:
the glass cover member defines a surface texture that at least partially defines a texture of the second surface region;
the surface texture of the glass cover member produces a gloss value that is in a range from 5 gloss units to 20 gloss units as measured at 60 degrees; and
the first gloss value is greater than the second gloss value.

### Claim 18 (depends on 16)

The mobile phone of claim 16, wherein the first surface region is defined at least in part by the glass cover member.

### Claim 19 (depends on 16)

The mobile phone of claim 16, wherein:
the rear cover assembly further comprises a glass ceramic cover member; and
the glass ceramic cover member at least partially defines the first surface region.

### Claim 20 (depends on 19)

The mobile phone of claim 19, wherein the rear cover assembly further comprises a set of windows coupled to the protruding feature, each window of the set of windows positioned over a respective opening of the set of openings.