Composite plastic display cover

Patent metadata

Field	Value
Publication number	US-10472277-B2
Application number	US-201414444485-A
Country	US
Kind code	B2
Filing date	Jul 28, 2014
Priority date	Jul 28, 2014
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

Methods for manufacturing a composite plastic display cover include defining an edge portion of a base plastic cover sheet. A strengthening treatment is applied to the edge portion of the base plastic cover sheet to improve mechanical strength. A hardening treatment is applied to the base plastic cover sheet and over the strengthening treatment to improve anti-glare and anti-scratch properties.

First claim

What is claimed is:

1. A composite plastic display cover for use in an information handling system, comprising:
a base plastic cover sheet that corresponds in size to the composite plastic display cover, the base plastic cover sheet including an edge portion and a center portion defined therein, wherein a display covered by the composite plastic display cover is visible through the center portion of the base plastic cover sheet;
a strengthening layer applied to the edge portion, the strengthening layer including a polymeric composite coating; and
a hardening layer applied to the base plastic cover sheet, the hardening layer including a nanoceramic layer.

2. The composite plastic display cover of claim 1 , wherein the strengthening layer includes:
a particulate selected from at least one of: silica fiber, silica particles, ceramic fiber, and ceramic particles.

3. The composite plastic display cover of claim 1 , wherein the strengthening layer includes:
a carbon fiber layer over the edge portion.

4. The composite plastic display cover of claim 1 , wherein the strengthening layer includes:
a colorant diffused into the edge portion.

5. The composite plastic display cover of claim 1 , wherein the colorant is at least partially opaque, and wherein diffusing the colorant includes laser-infusing the colorant.

6. The composite plastic display cover of claim 1 , wherein the polymeric composite coating includes at least one of:
polyurethane, polyetherimide, impact-modified poly(methyl methacrylate), polycarbonate, polyvinylpyrrolidine, and glycol-modified polyethylene terephthalate.

7. The composite plastic display cover of claim 1 , wherein strengthening layer includes:
an anti-microbial coating at the edge portion.

8. The composite plastic display cover of claim 1 , wherein the nanoceramic solgel includes at least one of: silica, alumina, and zirconia.

9. The composite plastic display cover of claim 1 , wherein the strengthening layer includes vapor-deposited silica.

10. The composite plastic display cover of claim 1 , wherein the base plastic cover sheet comprises a composite of plastic and glass layers corresponding in size to the composite plastic display cover.

11. The composite plastic display cover of claim 1 , wherein the composite plastic display cover has a lower hardness at the edge portion and a higher hardness at the center portion.

12. The composite plastic display cover of claim 1 , wherein the hardening layer includes:
a vapor deposited nanolayer of silica at both the edge portion and the center portion; and
the nanoceramic solgel at the center portion over the nanolayer of silica.

13. The composite plastic display cover of claim 12 , wherein the nanolayer of silica includes:
a vapor codeposited silica-metal mixture.

Assignees

• Aurongzeb Deeder M
• Peana Stefan
• Dell Products Lp

Inventors

• Aurongzeb Deeder M
• Peana Stefan

Classifications

• C23C18/1216

  Metal oxides (C23C18/1212 takes precedence) · CPC title

• B32B2307/41

  Opaque · CPC title

• B32B2307/402

  Coloured · CPC title

• B32B2264/107

  Ceramic · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title