Granted Patent B2

US 12,292,634 · App. 18/437,844 · Granted May 6, 2025

Inventors: Manivannan Thothadri (Mountain View, CA); Harvey You (Mountain View, CA); Helinda Nominanda (San Jose, CA); Neil Morrison (Seeheim-Jugenheim, DE); Daniel Paul Forster (San Jose, CA); Arvinder Chadha (San Jose, CA)

Assignee: APPLIED MATERIALS, INC.

G02F1/133331G02B1/11G02B1/14G02F1/133305G02F2201/50G02F2202/28

Abstract

Claims (47)

1. A flexible cover lens assembly, comprising:

an impact absorption layer disposed on a moisture barrier layer;

a substrate disposed on the impact absorption layer;

a wet hardcoat layer disposed directly on the substrate, wherein the wet hardcoat layer comprises an acrylate, and wherein the acrylate comprises a radiation curable acrylate, aliphatic urethane acrylate, a copolymer thereof, an elastomer thereof, or any combination thereof;

an adhesion promotion layer disposed directly on the wet hardcoat layer;

an anti-reflectance layer disposed directly on the adhesion promotion layer;

a dry hardcoat layer disposed on the anti-reflectance layer, wherein the dry hardcoat layer comprises a material selected from the group consisting of silicon carbide, silicon oxycarbide, silicon oxycarbide nitride, a dopant thereof, and any combination thereof; and

an anti-fingerprint coating layer disposed on the adhesion promotion layer.

2. The flexible cover lens assembly of claim 1 , wherein the wet hardcoat layer has a nano-indentation hardness in a range from 0.4 GPa to 1.5 GPa.

3. The flexible cover lens assembly of claim 1 , wherein the flexible cover lens assembly has a critical strain of greater than 1% to 15%.

4. The flexible cover lens assembly of claim 1 , wherein the dry hardcoat layer has a nano-indentation hardness in a range from 1 GPa to 5 GPa.

5. The flexible cover lens assembly of claim 1 , wherein the adhesion promotion layer comprises a material selected from the group consisting of silicon oxide, silicon carbide, silicon oxycarbide, silicon nitride, silicon oxynitride, silicon oxycarbide nitride, a dopant thereof, and any combination thereof.

6. The flexible cover lens assembly of claim 1 , wherein the adhesion promotion layer has a refractive index in a range from 1.40 to 1.55.

7. The flexible cover lens assembly of claim 1 , wherein the adhesion promotion layer has carbon concentration that varies across a thickness of the adhesion promotion layer in such a way that a gradient of carbon concentration is produced across the thickness.

8. The flexible cover lens assembly of claim 1 , wherein the adhesion promotion layer comprises from 2 sublayers to 10 sublayers.

9. The flexible cover lens assembly of claim 1 , wherein the adhesion promotion layer comprises a plurality of sublayers contained therein, and wherein the plurality of sublayers comprises carbon concentration that varies across a thickness of the adhesion promotion layer in such a way that a gradient of carbon concentration is produced across the thickness.

10. The flexible cover lens assembly of claim 1 , wherein the adhesion promotion layer comprises a plurality of sublayers contained therein, and wherein the plurality of sublayers has hardness that varies across a thickness of the adhesion promotion layer in such a way that a gradient of hardness is produced across the thickness.

11. The flexible cover lens assembly of claim 1 , wherein the adhesion promotion layer comprises a plurality of sublayers contained therein, and wherein the plurality of sublayers has a nano-indentation hardness across a thickness of the adhesion promotion layer within a range from 0.1 GPa to 5 GPa, as measured by nano-indentation technique.

12. A flexible cover lens assembly, comprising:

a substrate disposed on a moisture barrier layer;

a wet hardcoat layer disposed directly on the substrate, wherein the wet hardcoat layer comprises an acrylate, and wherein the acrylate comprises a radiation curable acrylate, aliphatic urethane acrylate, a copolymer thereof, an elastomer thereof, or any combination thereof;

an adhesion promotion layer disposed directly on the wet hardcoat layer;

an anti-reflectance layer disposed directly on the adhesion promotion layer;

a dry hardcoat layer disposed on the anti-reflectance layer, wherein the dry hardcoat layer comprises a material selected from the group consisting of silicon carbide, silicon oxycarbide, silicon oxycarbide nitride, a dopant thereof, and any combination thereof; and

an anti-fingerprint coating layer disposed on the adhesion promotion layer.

13. The flexible cover lens assembly of claim 12 , wherein the adhesion promotion layer comprises a material selected from the group consisting of silicon oxide, silicon carbide, silicon oxycarbide, silicon nitride, silicon oxynitride, silicon oxycarbide nitride, a dopant thereof, and any combination thereof, and wherein the adhesion promotion layer has a refractive index in a range from 1.40 to 1.55.

14. The flexible cover lens assembly of claim 12 , wherein the adhesion promotion layer has carbon concentration that varies across a thickness of the adhesion promotion layer in such a way that a gradient of carbon concentration is produced across the thickness.

15. The flexible cover lens assembly of claim 12 , wherein the adhesion promotion layer comprises a plurality of sublayers contained therein, and wherein the plurality of sublayers comprises carbon concentration that varies across a thickness of the adhesion promotion layer in such a way that a gradient of carbon concentration is produced across the thickness.

16. The flexible cover lens assembly of claim 12 , wherein the adhesion promotion layer comprises a plurality of sublayers contained therein, and wherein the plurality of sublayers has a nano-indentation hardness across a thickness of the adhesion promotion layer within a range from 0.1 GPa to 5 GPa, as measured by nano-indentation technique.

17. A flexible cover lens assembly, comprising:

an impact absorption layer disposed on a glass layer;

a substrate disposed on the impact absorption layer;

a wet hardcoat layer disposed on the substrate, wherein the wet hardcoat layer comprises an acrylate, and wherein the acrylate comprises a radiation curable acrylate, aliphatic urethane acrylate, a copolymer thereof, an elastomer thereof, or any combination thereof;

an adhesion promotion layer disposed directly on the wet hardcoat layer;

an anti-reflectance layer disposed directly on the adhesion promotion layer;

a dry hardcoat layer disposed directly on the anti-reflectance layer, wherein the dry hardcoat layer comprises a material selected from the group consisting of silicon carbide, silicon oxycarbide, silicon oxycarbide nitride, a dopant thereof, and any combination thereof; and

an anti-fingerprint coating layer disposed on the adhesion promotion layer.

18. A flexible cover lens assembly, comprising:

a glass layer disposed on an impact absorption layer;

a substrate disposed on the glass layer;

a wet hardcoat layer disposed directly on the substrate, wherein the wet hardcoat layer comprises an acrylate, and wherein the acrylate comprises a radiation curable acrylate, aliphatic urethane acrylate, a copolymer thereof, an elastomer thereof, or any combination thereof;

an adhesion promotion layer disposed directly on the wet hardcoat layer;

an anti-reflectance layer disposed directly on the adhesion promotion layer;

a dry hardcoat layer disposed on the anti-reflectance layer, wherein the dry hardcoat layer comprises a material selected from the group consisting of silicon carbide, silicon oxycarbide, silicon oxycarbide nitride, a dopant thereof, and any combination thereof; and

an anti-fingerprint coating layer disposed on the adhesion promotion layer.

19. The flexible cover lens assembly of claim 18 , wherein the flexible cover lens assembly has a critical strain of greater than 1% to 15%.

20. The flexible cover lens assembly of claim 18 , wherein the adhesion promotion layer comprises a material selected from the group consisting of silicon oxide, silicon carbide, silicon oxycarbide, silicon nitride, silicon oxynitride, silicon oxycarbide nitride, a dopant thereof, and any combination thereof, and wherein the adhesion promotion layer has a refractive index in a range from 1.40 to 1.55.

Assignments (1)

Continuity (3)

References Cited (375)