Glass having anti-glare surface and method of making
AssigneeCorning Incorporated
InventorsKrista L. Carlson, Shandon D. Hart, Kelvin Nguyen, Robert Sabia, Daniel A Sternquist, Lu Zhang
Life of this patent
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Abstract
A glass article having an anti-glare surface. The anti-glare surface has a distinctness-of-reflected image of less than 95, and a haze of less than or equal to 50%. In one embodiment, the glass article further includes a smudge-resistant surface disposed on the anti-glare surface. Methods of making the glass article and anti-glare surface are also described.
Claims53
A method of making a glass article having an anti-glare surface, the method comprising the steps of:
- a. providing a glass article;
- b. growing crystals on a surface of the glass article;
- c. etching glass from the surface surrounding the crystals to form a roughened texture on the surface;
- and
- d. removing the crystals from the surface to form the anti-glare surface.
A method of making an anti-glare surface, the method comprising the steps of:
- a. providing a glass substrate;
- b. forming crystals on a surface of the substrate;
- c. etching glass from the surface surrounding the crystals, and
- d. removing the crystals from the surface to form the anti-glare surface, wherein the anti-glare surface has a haze less than or equal to 50% and a distinctness-of-reflected image of less than 95.
A glass article, the glass article having an anti-glare surface, wherein the anti-glare surface exhibits a distinctness-of-reflected image of less than 95, and a haze of less than or equal to 50%.
A system for forming an anti-glare surface on a substrate, the system comprising:
- a. a crystal forming solution, the crystal forming solution comprising a first aqueous etching solution, the first aqueous etching solution comprising an inorganic fluoride salt and a wetting agent, wherein the first aqueous etching solution forms crystals on the surface of the substrate and etches the surface surrounding the crystals;
- and
- b. at least one of:
- i. a crystal removing solution, the crystal removing solution comprising a second etching solution, wherein the second etching solution comprises a mineral acid and is free of HF, and wherein the second aqueous etching solution removes the crystals from the surface;
- and
- ii. a roughness adjusting solution comprising a third aqueous etching solution, wherein the third etching solution comprises at least one of HF and a mineral acid, and wherein the third etching solution reduces the roughness to a maximum roughness.
Dependencies are inferred from the claim text.