Decorative member

Patent metadata

Field	Value
Publication number	US-11738536-B2
Application number	US-201816767684-A
Country	US
Kind code	B2
Filing date	Dec 14, 2018
Priority date	Dec 15, 2017
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

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 a substrate provided on a surface of the color developing layer. The substrate comprises a pattern layer, and the light absorbing layer comprises an aluminum oxynitride (AlaObNc).

First claim

The invention claimed is:

1. A decoration element comprising:
a color developing layer comprising a light reflective layer and a light absorbing layer provided on the light reflective layer; and
a substrate provided on a surface of the color developing layer,
wherein the substrate comprises a pattern layer,
wherein the light absorbing layer comprises an aluminum oxynitride (Al a O b N c ); and
wherein ω represented by the following Equation 1 is 0.8 or less:

ω
=

(

T
X

)

×

(

σ
X

)

[

Equation
⁢

1

]

Tx
=

{

T
1

-

[

T
1

T
0

]

×

T
0

}

×

(

T
0

)

-
1

[

Equation
⁢

2

]

σ
X

=

3
⁢
a

2
⁢
b

+

3
⁢
c

[

Equation
⁢

3

]

wherein ω is a relation between a content ratio of each element of the aluminum oxynitride and a thickness of the light absorbing layer at any one point of the light absorbing layer;
wherein in Equation 1, T x is represented by Equation 2, and σ x is represented by Equation 3;
wherein in Equation 2, T 1 (nm) is the thickness of the light absorbing layer comprising the any one point of the light absorbing layer, T 0 is 100 nm, and

[

T
1

T
0

]

is a maximum integer that is not greater than

T
1

T
0

;

with the proviso that when T 1 is m*T 0 , T x is 1 and when T 1 is not m*T 0 , Tx satisfies Equation 2, and m is an integer of 1 or greater;
wherein in Equation 3, a is an element content ratio of aluminum (Al), b is an element content ratio of oxygen (O), and c is an element content ratio of nitrogen (N), wherein the element content ratio is an atomic percent (at %) of an element at the any one point of the light absorbing layer;
wherein the pattern layer comprises a convex portion or a concave portion;
wherein each of the convex portion and the concave portion has an asymmetric cross-section;
wherein in each of the convex portion and the concave portion having an asymmetric cross-section, at least one cross-section comprises a first inclined side and a second inclined side having different inclined angles; and
wherein an angle formed by the first inclined side and the second inclined side is in a range of 80° to 100°.

2. The decoration element of claim 1 , wherein Tx is greater than or equal to 0.01 and less than or equal to 0.5.

3. The decoration element of claim 1 , wherein σ x is greater than or equal to 1.1 and less than or equal to 1.9.

4. The decoration element of claim 1 , wherein a hue-angle h* in CIE L*Ch color space of the light absorbing layer ranges from 315° to 360° and 0° to 150°.

5. The decoration element of claim 1 , wherein the light reflective layer is a single layer or a multilayer comprising one or more materials selected from the group consisting of indium (In), titanium (Ti), tin (Sn), silicon (Si), germanium (Ge), aluminum (Al), copper (Cu), nickel (Ni), vanadium (V), tungsten (W), tantalum (Ta), molybdenum (Mo), neodymium (Nd), iron (Fe), chromium (Cr), cobalt (Co), gold (Au), silver (Ag), oxides thereof, nitrides thereof, oxynitrides thereof, carbon and carbon composites.

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

7. The decoration element of claim 1 , wherein the light absorbing layer has an extinction coefficient of greater than 0 and less than or equal to

Assignees

• Lg Chemical Ltd

Inventors

• Heo Nansra
• Kim Yong Chan
• Jang Song Ho
• Kim Ki Hwan
• Shon Jeong Woo
• Song Jin Suk
• Jo Pilsung

Classifications

• B32B7/023 Primary

  Optical properties · CPC title

• A45D33/006

  Vanity boxes or cases, compacts, i.e. containing a powder receptacle and a puff or applicator (A45D33/025 - A45D33/34 and A45D40/22 take precedence; toiletry etuis A45C11/008) · CPC title

• A45D33/18

  with special decorative arrangements or form · CPC title

• A45D34/00

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

• A45D40/00

  Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks (features common to containers for handling powdery or liquid toiletry or cosmetic substances A45D33/00-A45D37/00; cosmetic or like preparations A61K8/00, A61Q; sample tables or the like G09F5/00) · CPC title