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US 12,075,898 B2Granted
Decorative member
AssigneeLG Chem, Ltd.
InventorsYong Chan Kim, Ki Hwan Kim, Nansra Heo, Jeong Woo Shon, Pilsung Jo
Life of this patent
Estimating the term…
Abstract
The present application relates to a decorative member 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 one surface of the color developing layer, wherein the light absorbing layer includes a copper oxide (CuaOx).
Claims12
A decorative member comprising:
- 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 one surface of the color developing layer, wherein the light absorbing layer includes a copper oxide (CuaOx);
- and
- ω of the light absorbing layer, represented by the following Equation 1 is greater than or equal to 0.61 and less than or equal to 1.2 when conducting a component analysis on any one point of the light absorbing layer:
- ω
- =
- (
- T
- x
- )
- ×
- (
- σ
- x
- )
- [
- Equation
-
-
- 1
- ]
- f
-
- (
- T
- 1
- )
- =
- T
- 1
- T
- 0
-
- (
- 0
- <
- T
- 1
- ≤
- T
- 0
- )
-
-
- f
-
- (
- T
- 1
- )
- =
- f
-
- (
- T
- 1
- +
- n
- ×
- T
- 0
- )
- [
- Equation
-
-
- 2
- ]
- σ
- x
- =
- x
- a
- [
- Equation
-
-
- 3
- ]
- in Equation 1, Tx is a T1-dependent function value of a function represented by f(T1), n is a positive integer of 1 or greater, and σx is represented by Equation 3;
- in Equation 2, T1 is a thickness of the light absorbing layer including the any one point of the light absorbing layer on which the component analysis is conducted, and T0 is 60 nm;
- and
- in Equation 3, a means the number of copper (Cu) atoms, and x means of the number of oxygen (O) atoms, in the CuaOx compound,
- wherein the substrate includes a pattern layer, and the pattern layer includes a convex portion or concave portion shape having an asymmetric cross-section.
82 more elements
Dependencies are inferred from the claim text.