Granted Patent B2

US 12,552,939 · App. 16/023,355 · Granted Feb 17, 2026

Inventors: Johannes Seydel (Petaluma, CA); Kangning Liang (Santa Rosa, CA); Jaroslaw Zieba (Santa Rosa, CA); Carole Thoraval (Santa Rosa, CA)

Assignee: VIAVI SOLUTIONS INC.

C09C1/0015B05D5/063G02F1/17C09K2323/04C09K2323/05C09K2323/057G02F2201/34G02F2202/22G02F2203/055

Abstract

Claims (50)

1 . An optical device, comprising:

a reflector layer;

a selective light modulator layer on the reflector layer, wherein the selective light modulator layer includes a host material that is an organic polymer; and

functional molecules present in at least one of the selective light modulator layer, an optional functional layer on the selective light modulator layer, or an optional functional layer on the reflector layer;

wherein the functional molecules include at least one group chosen from electric charge dissipation groups; coating bonding groups; and adhesion enhancing groups,

wherein the electric charge dissipation groups are chosen from polyols, phosphoric acid, pyridinum salts, polyethylene glycols, phenols, carbon nanotubes, indium oxide, conductive polymers and combinations thereof;

wherein the coating bonding groups are chosen from vinyl, epoxy, urethane, polyols, phenols, thiols, and combinations thereof;

wherein the adhesion enhancing groups are chosen from siloxanes, polyols, phosphoric acids, anhydrides, acyl halides, and combinations thereof;

wherein a layer of the optical device is not included on at least two sides of the reflector layer;

wherein if the electric charge dissipation groups or the adhesion enhancing groups are phosphoric acids, functional molecules including the phosphoric acid groups also include an acrylate functional group; and

wherein the optical device is a flake having a thickness chosen from a range of 100 nm to 100 μm and a size chosen from a range of 100 nm to 1 mm in size; and wherein the selective light modulator layer and, if present, the optional functional layer on the selective light modulator layer or the optional functional layer on the reflector layer, has an optical thickness variation of less than 5%.

2 . The optical device of claim 1 , wherein the functional molecules are present in the functional layer on the selective light modulator layer.

3 . The optical device of claim 1 , wherein the functional molecules are present in the functional layer on the reflector layer.

4 . The optical device of claim 1 , wherein the functional molecules are present in the selective light modulator layer.

5 . The optical device of claim 1 , wherein the functional molecules are present in the selective light modulator layer near an external surface of the selective light modulator layer.

6 . The optical device of claim 1 , wherein the functional molecules are present in the selective light modulator layer near the reflector layer.

7 . The optical device of claim 1 , wherein the reflector layer includes a first surface and a second surface opposite the first surface; and wherein the selective light modulator layer is a first selective light modulator layer.

8 . The optical device of claim 7 , wherein the first selective light modulator layer is on the first surface of the reflector layer; and wherein a second selective light modulator layer is on the second surface of the reflector layer.

9 . The optical device of claim 8 , wherein the functional molecules are present in at least one of the first or second selective light modulator layers.

10 . The optical device of claim 8 , wherein the functional molecules are present in at least one of an external surface of the first or second selective light modulator layers.

11 . The optical device of claim 8 , wherein the functional molecules are present in at least one functional layer on at least one of the first or second selective light modulator layers.

12 . The optical device of claim 8 , wherein the functional molecules are present in at least one of the first or the second selective light modulator layers near the reflector layer.

13 . A method of making an optical device, comprising:

depositing on a substrate a reflector layer;

depositing on a surface of the reflector layer a selective light modulator layer, wherein the selective light modulator layer includes a host material that is an organic polymer; and

providing functional molecules in at least one of the selective light modulator layer, in an optional functional layer on the selective light modulator layer, or in an optional functional layer on the reflector layer;

wherein the functional molecules include at least one group chosen from electric charge dissipation groups; coating bonding groups; and adhesion enhancing groups,

wherein the electric charge dissipation groups are chosen from polyols, phosphoric acid, pyridinum salts, polyethylene glycols, phenols, carbon nanotubes, indium oxide, conductive polymers and combinations thereof;

wherein the coating bonding groups are chosen from vinyl, epoxy, urethane, polyols, phenols, thiols, and combinations thereof;

wherein the adhesion enhancing groups are chosen from siloxanes, polyols, phosphoric acids, anhydrides, acyl halides, and combinations thereof;

wherein a layer of the optical device is not included on at least two sides of the reflector layer;

wherein if the electric charge dissipation groups or the adhesion enhancing groups are phosphoric acids, functional molecules including the phosphoric acid groups also include an acrylate functional group; and

wherein the optical device is a flake having a thickness chosen from a range of 100 nm to 100 μm and a size chosen from a range of 100 nm to 1 mm in size; and wherein the selective light modulator layer and, if present, the optional functional layer on the selective light modulator layer or the optional functional layer on the reflector layer, has an optical thickness variation of less than 5%.

14 . The method of claim 13 , wherein the functional molecules are present in the functional layer on the selective light modulator layer.

15 . The method of claim 13 , wherein the functional molecules are present in the functional layer on the reflector layer.

16 . The method of claim 13 , wherein the functional molecules are present in the selective light modulator layer.

17 . An optical device, comprising:

a reflector layer;

a selective light modulator layer on the reflector layer, wherein the selective light modulator layer includes a host material that is an organic polymer; and

functional molecules present in the selective light modulator layer;

wherein the functional molecules include at least one group chosen from electric charge dissipation groups; coating bonding groups; and adhesion enhancing groups,

wherein the electric charge dissipation groups are chosen from polyols, phosphoric acid, pyridinum salts, polyethylene glycols, phenols, carbon nanotubes, indium oxide, conductive polymers and combinations thereof;

wherein the coating bonding groups are chosen from vinyl, epoxy, urethane, polyols, phenols, carboxylic acids, thiols, and combinations thereof;

wherein the adhesion enhancing groups are chosen from siloxanes, polyols, phosphoric acids, anhydrides, acyl halides, and combinations thereof;

wherein a layer of the optical device is not included on at least two sides of the reflector layer;

wherein if the electric charge dissipation groups or the adhesion enhancing groups are phosphoric acids, functional molecules including the phosphoric acid groups also include an acrylate functional group; and

wherein the optical device is a flake having a thickness chosen from a range of 100 nm to 100 μm and a size chosen from a range of 100 nm to 1 mm in size; and wherein the selective light modulator layer has an optical thickness variation of less than 5%.

18 . The optical device of claim 1 , wherein the electric charge dissipation group is chosen from polyols, pyridinium salts, polyethylene glycols, phenols, carbon nanotubes, conductive polymers, and combinations thereof; the coating bonding group is chosen from phenols, urethane, polyols, thiols, and combinations thereof; and the adhesion enhancing group is chosen form siloxanes, polyols, anhydrides, acyl halides and combinations thereof.

19 . The optical device of claim 17 , wherein the electric charge dissipation group is chosen from polyols, pyridinium salts, polyethylene glycols, phenols, carbon nanotubes, conductive polymers, and combinations thereof; the coating bonding group is chosen from phenols, urethane, polyols, thiols, and combinations thereof; and the adhesion enhancing group is chosen form siloxanes, polyols, anhydrides, acyl halides and combinations thereof.

20 . The optical device of claim 17 , wherein the electric charge dissipation group is chosen from polyols, phosphoric acid, pyridinium salts, polyethylene glycols, carbon nanotubes, conductive polymers, and combinations thereof; the coating bonding group is chosen from polyols, carboxylic acids and combinations thereof; and the adhesion enhancing group is chosen form polyols, phosphoric acid, anhydrides, acyl halides and combinations thereof.

Assignments (4)

Continuity (1)

References Cited (306)