Method of making a temperable antiglare coating, and resulting products containing the same

1. A method of making an antiglare coating for use on a front surface of a display panel or photovoltaic device, the method comprising:

forming a mixture comprising silica and alumina by mixing at least glycycloxypropyltrimethoxysilane with aluminum chloride, a solvent, water, a chelating agent, and a wetting agent;

casting the mixture by spin coating to form a layer on a substrate; and

curing and heat treating the layer, and using the layer in at least part of a display panel or photovoltaic device.

2. The method of claim 1 , wherein the substrate comprises glass, and wherein the mixture consists essentially of silica, alumina, solvent, water, the chelating agent and the wetting agent.

3. The method of claim 2 , wherein the glass substrate comprises a soda-lime-silica glass including the following ingredients: SiO 2 , 67-75% by weight; Na 2 O, 10-20% by weight; CaO, 5-15% by weight; MgO, 0-7% by weight; Al 2 O 3 , 0-5% by weight; K 2 O, 0-5% by weight; Li 2 O, 0-1.5% by weight; and BaO, 0-1%, by weight.

4. The method of claim 1 , wherein the solvent comprises ethanol.

5. The method of claim 1 , wherein the chelating agent comprises ethylacetoacetate.

6. The method of claim 1 , wherein the wetting agent comprises a nonionic surfactant.

7. The method of claim 1 , wherein the step of casting occurs at least at 1000 rpm.

8. The method of claim 1 , further comprising thermally tempering the glass substrate with the layer thereon, where the layer survives the tempering process without significant damage or degradation.

9. A method of making an antiglare coating, the method comprising:

forming a mixture of silica and alumina by mixing at least a silane with aluminum, a solvent, and water, wherein the aluminum comprises aluminum chloride;

casting the mixture by spin coating to form a layer on a glass substrate; and

curing and heat treating the layer, the layer making up at least part of the antiglare coating.

10. The method of claim 9 , wherein the glass substrate comprises a soda-lime-silica glass including the following ingredients: SiO 2 , 67-75% by weight; Na 2 O, 10-20% by weight; CaO, 5-15% by weight; MgO, 0-7% by weight; Al 2 O 3 , 0-5% by weight; K 2 O, 0-5% by weight; Li 2 O, 0-1.5% by weight; and BaO, 0-1%, by weight.

11. The method of claim 9 , wherein the mixture further comprises a wetting agent comprising a nonionic surfactant.

12. The method of claim 9 , wherein a gloss of the antiglare coating at a gloss angle of 20° is less than a gloss of an uncoated glass substrate.

13. The method of claim 9 , wherein a gloss of the antiglare coating at a gloss angle of 60° is less than a gloss of an uncoated glass substrate.

14. The method of claim 9 , further comprising thermally tempering the glass substrate with the layer thereon, where the layer survives the tempering process without significant damage or degradation.

15. A method of making an antiglare coating, the method comprising:

forming a mixture comprising silica and alumina by mixing at least a silane with aluminum, a solvent, and water;

casting the mixture by spin coating in forming a layer supported by a glass substrate;

curing and heat treating the layer, the layer making up at least part of the antiglare coating; and

wherein the silane comprises glycycloxypropyltrimethoxysilane.

16. The method of claim 15 , wherein the aluminum comprises aluminum chloride.

17. A method of making an antiglare coating, the method comprising:

forming a mixture comprising silica and alumina by mixing at least a silane with aluminum, a solvent, and water;

casting the mixture by spin coating in forming a layer supported by a glass substrate;

curing and heat treating the layer, the layer making up at least part of the antiglare coating; and

wherein the mixture further comprises a chelating agent comprising ethylacetoacetate.