Composite plastic display cover
View Patent ↗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.
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.