Enhanced glass impact durability through application of thin films

• US 9,282,653 B2
• Filed: 04/19/2014
• Issued: 03/08/2016
• Est. Priority Date: 06/24/2011
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Shedletsky, Anna-Katrina, Prest, Christopher D.
• Primary Examiner(s): Sample, David
• Assistant Examiner(s): Polley, Christopher
• Application Number:
  US14/256,945
• Publication Number:
  US 20140226269A1
• Time in Patent Office: 689 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: C03C 17/3441 comprising carbon, a carbide or oxycarbide
• CPC Class Codes: H05K 5/0017 with operator interface units
• CPC Class Codes: Y10T 29/49982 Coating
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

Apparatus, systems and methods for characteristics of glass components through use of one or more coatings are disclosed. The coatings are typically thin coatings, such as thin film coatings. The coatings can serve to increase strength of the glass components and/or provide durable user interfacing surfaces. Accordingly, glass articles that have received coatings are able to be not only thin but also sufficiently strong so as to resist damage from impact events. The coated glass articles are well suited for use in consumer products, such as consumer electronic devices (e.g., electronic devices).

Claims

1. An electronic device, comprising:

a housing, the housing including a glass member providing a user facing outer surface for a portion of the housing,

wherein a portion of the glass member is provided over a display device that is provided within the housing, and

wherein another portion of the glass member is provided with an amorphous carbon coating, the portion of the glass member that is provided with the amorphous carbon coating does not include the portion of the glass member provided over the display device provided within the housing.

2. An electronic device as recited in claim 1, wherein the amorphous carbon coating is applied by a plasma-assisted physical vapor deposition process.

3. An electronic device as recited in claim 1, wherein the amorphous carbon coating comprises a coating of amorphous carbon with diamond like properties.

4. An electronic device as recited in claim 1, wherein the glass member further includes an edge, and wherein at least a portion of the edge is provided with a soft coating.

5. An electronic device as recited in claim 1,

wherein the amorphous carbon coating is a first coating, and

wherein at least the portion of the glass member or a sub-portion thereof is coated with a second coating, the second coating being substantially transparent protective coating.

6. An electronic device as recited in claim 5, wherein the second coating comprises at least one of SiO₂ and SiN.

7. An electronic device as recited in claim 5, wherein the second coating comprises an oleophobic coating.

8. An electronic device as recited in claim 5, wherein the second coating comprises a substantially scratch resistant coating.

9. An electronic device as recited in claim 5, wherein the second coating is provided on at least the portion of the glass member provided over the display device.

10. An electronic device as recited in claim 1, wherein the glass member is chemically strengthened before the amorphous carbon coating is applied to the glass member.

11. An electronic device as recited in claim 10, wherein the amorphous carbon coating has a thickness less than or equal to 0.1 mm.

12. An electronic device as recited in claim 1,

wherein the amorphous carbon coating is a first coating, and

wherein at least the portion of the glass member or a sub-portion thereof is coated with a second coating, the second coating being substantially transparent protective coating.

13. An electronic device as recited in claim 12, wherein the substantially transparent protective coating comprises at least one of SiO₂ and SiN.

14. An electronic device as recited in claim 12, wherein the substantially transparent protective coating comprises an oleophobic coating.

15. An electronic device as recited in claim 12, wherein the substantially transparent protective coating comprises a substantially scratch resistant coating.

16. A portable electronic device, comprising:

a housing, the housing including a glass article providing a user facing outer surface for a portion of the housing;

a display device coupled to the housing,

wherein a portion of the glass article is provided as or over the display device that is coupled to the housing, and

wherein another portion of the glass article is provided with an amorphous carbon coating, the portion of the glass article that is provided with the amorphous carbon coating does not include the portion of the glass article provided as or over the display device.

17. A portable electronic device as recited in claim 16, wherein the amorphous carbon coating has a thickness less than or equal to 0.1 mm.

18. A portable electronic device as recited in claim 16, wherein the amorphous carbon coating is applied by a plasma-assisted physical vapor deposition process.

19. A portable electronic device as recited in claim 16, wherein the amorphous carbon coating comprises a coating of amorphous carbon with diamond like properties.

20. A portable electronic device as recited in claim 16, wherein the glass article further includes an edge, and wherein at least a portion of the edge is provided with a soft coating.

21. A portable electronic device as recited in claim 16,

wherein the amorphous carbon coating is a first coating, and

wherein at least the portion of the glass article or a sub-portion thereof is coated with a second coating, the second coating being substantially transparent protective coating.

22. A portable electronic device as recited in claim 21, wherein the substantially transparent protective coating is provided on at least the portion of the glass article that is provided as or over the display device.

23. A portable electronic device as recited in claim 21, wherein the substantially transparent protective coating comprises a substantially scratch resistant coating.

24. A portable electronic device as recited in claim 21, wherein the substantially transparent protective coating comprises an oleophobic coating.

25. A portable electronic device as recited in claim 16, wherein the glass article is chemically strengthened before the amorphous carbon coating is applied to the glass article.