Multilayer glass composite display cover
Methods for manufacturing a multilayer composite display cover include stacking a plurality of composite layers, each comprising an ultra-thin glass sheet covered in a polymer layer. After a cover glass sheet is placed on an exposed polymer layer, the composite layers may be bonded together. A ceramic coating may be applied to the external surfaces to increase hardness.
1. A multilayer composite display cover for use in an information handling system, comprising:
a plurality of composite layers each corresponding in size to a display cover, the plurality of composite layers sequentially bonded together, each of the plurality of composite layers comprising a polymer coating over an ultra-thin glass sheet;
an ultra-thin glass cover sheet bonded to an exposed polymer coating of the plurality of composite layers;
a ceramic layer coating the ultra-thin glass cover sheet, the ceramic layer comprised of a crystalline ceramic material vapor deposited to the ultra-thin glass cover sheet, the crystalline ceramic material including zircon (ZrSiO 4 ); and
wherein an overall thickness of the multilayer composite display cover is between 100 microns and 200 microns.
2. The multilayer composite display cover of claim 1 , wherein the plurality of the composite layers is at least 25 layers.
3. The multilayer composite display cover of claim 1 , wherein the composite layers have the same thickness as each other.
4. The multilayer composite display cover of claim 1 , wherein the composite layers comprise at least 50 microns of the ultra-thin glass sheet.
5. The multilayer composite display cover of claim 1 , wherein the composite layers comprise at least 50 microns of the polymer coating.
6. The multilayer composite display cover of claim 1 , wherein the ultra-thin glass sheet is comprised of ionic exchange-strengthened glass.
7. The multilayer composite display cover of claim 1 , wherein the polymer coating includes glycol-modified polyethylene terephthalate (PET-G).
8. The multilayer composite display cover of claim 1 , wherein the polymer coating includes silica nanogel.
9. The multilayer composite display cover of claim 1 , wherein the polymer coating includes at least one of: polyetherimide (PEI), impact-modified poly(methyl methacrylate) (PMMA), polycarbonate (PC), polyvinylpyrrolidine (PVP), and glycol-modified polyethylene terephthalate (PET-G).
10. The multilayer composite display cover of claim 9 , wherein the polymer coating is diffused with at least one of silica particles and ceramic particles.
11. The multilayer composite display cover of claim 9 , wherein the polymer coating includes a nanoceramic solgel.
12. The multilayer composite display cover of claim 11 , wherein the nanoceramic solgel includes alumina, silica, or zirconia.
13. The multilayer composite display cover of claim 1 , wherein at least one ultra-thin glass sheet of the plurality of composite layers includes rare earth metals.
14. The multilayer composite display cover of claim 13 , wherein the at least one ultra-thin glass sheet of the plurality of composite layers, which includes the rare earth metals, includes the ultra-thin glass cover sheet bonded to the exposed polymer coating of the plurality of composite layers.
15. The multilayer composite display cover of claim 1 , wherein the multilayer composite display cover has a diagonal size of at least seven inches.