Decoration member and method for producing same

Patent metadata

Field	Value
Publication number	US-11524482-B2
Application number	US-201816767530-A
Country	US
Kind code	B2
Filing date	Dec 12, 2018
Priority date	Dec 15, 2017
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

A decoration element including a color developing layer including a light reflective layer, and a light absorbing layer provided on the light reflective layer; and an in-mold label layer provided on one surface of the color developing layer. The light absorbing layer includes a convex portion shape or concave portion shape having an asymmetric cross-section.

First claim

The invention claimed is:

1. A decoration element comprising:
a color developing layer including a light reflective layer; and a light absorbing layer provided on a surface of the light reflective layer; and
an in-mold label layer provided on one surface of the color developing layer,
wherein the light absorbing layer comprises a convex portion shape or a concave portion shape having an asymmetric cross-section,
wherein the light absorbing layer includes one or more selected from copper oxides, copper nitrides, copper oxynitrides, aluminum oxides, aluminum nitrides, aluminum oxynitrides and molybdenum titanium oxynitrides,
wherein the light absorbing layer has an extinction coefficient of greater than 0 and less than or equal to 4 at 400 nm, and
wherein a thickness of the light absorbing layer is from 5 nm to 500 nm.

2. The decoration element of claim 1 , wherein the color developing layer further includes a color film provided on a surface of the light reflective layer opposite to the surface of the light reflective layer having the light absorbing layer provided thereon, between the light reflective layer and the light absorbing layer, or on a surface of the light absorbing layer opposite to a surface of the light absorbing layer having the light reflective layer provided thereon.

3. The decoration element of claim 1 , wherein the color developing layer further includes a substrate provided on a surface of the light reflective layer opposite to the surface of the light reflective layer having the light absorbing layer provided thereon, or on a surface of the light absorbing layer opposite to a surface of the light absorbing layer having the light reflective layer provided thereon.

4. The decoration element of claim 1 , wherein the light absorbing layer includes two or more points with different thicknesses.

5. The decoration element of claim 1 , wherein the light absorbing layer includes one or more regions in which an upper surface has an inclined surface with an angle of inclination of greater than 0 degrees and less than or equal to 90 degrees, and
wherein the light absorbing layer includes one or more regions having a thickness different from a thickness in any one or more regions having the inclined surface.

6. The decoration element of claim 1 , which has a dichroism of ΔE*ab>1.

7. The decoration element of claim 1 , wherein an upper surface of the light absorbing layer includes a pattern having a cone-shaped protrusion or groove, a pattern having a protrusion in which the highest point has a line shape or a groove in which the lowest point has a line shape, or a pattern having a protrusion or groove with a structure in which the cone-shaped upper surface is cut.

8. The decoration element of claim 7 , wherein, in the pattern having a cone-shaped protrusion or groove, two or less identical shapes are present when observed from an upper surface while rotating the cone-shaped pattern 360 degrees around a vertex of the cone.

9. The decoration element of claim 7 , wherein, in the pattern having a protrusion in which the highest point has a line shape or a groove in which the lowest point has a line shape, only one identical shape is present when observed from an upper surface while rotating 360 degrees around a center of gravity of the upper surface.

10. The decoration element of claim 1 , wherein the light absorbing layer has a refractive index of 0 to 8 at 400 nm.

11. The decoration element of claim 1 , wherein the in-mold label layer includes one or more materials selected from the group consisting of acrylonitrile butadiene styrene (ABS), polymethyl methacrylate (PMMA), polycarbonate (PC), acrylonitrile-styrene (AS), styrene-acrylonitrile (SAN), polyethylene terephthalate (PET) and polypropylene (PP).

12. The decoration element of claim 1 , which is a deco film or a case of a mobile device.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Yong Chan
• Kim Ki Hwan
• Heo Nansra
• Shon Jeong Woo
• Jo Pilsung

Classifications

• C23C14/0676

  Oxynitrides · CPC title

• A45D34/00

  Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes · CPC title

• G02B5/0816

  Multilayer mirrors, i.e. having two or more reflecting layers (G02B5/0883, G02B5/0891 take precedence) · CPC title

• C23C14/0036

  Reactive sputtering · CPC title

• B44C3/02

  Superimposing layers {(B44C3/005 takes precedence)} · CPC title