Decoration member

A decoration member 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 one surface of the color developing layer,
• wherein the light absorbing layer comprises a molybdenum-titanium oxide represented by Chemical Formula 1;
• and
• ω represented by Equation 1 is greater than or equal to 0.001 and less than or equal to 0.4 when conducting a component analysis of the molybdenum-titanium oxide on any one point of the light absorbing layer:
• MoaTibOx [Chemical Formula 1]
• ω
• =
• (
• T
• x
• )
• ×
• (
• σ
• x
• )
• [
• Equation
• ⁢
• 1
• ]
• f
• ⁡
• (
• T
• 1
• )
• =
• T
• 1
• T
• 0
• ⁢
• (
• 0
• <
• T
• 1
• ≤
• T
• 0
• )
• [
• Equation
• ⁢
• 2
• ]
• f
• ⁡
• (
• T
• 1
• )
• =
• f
• ⁡
• (
• T
• 1
• +
• n
• ×
• T
• 0
• )
• [
• Equation
• ⁢
• 4
• ]
• σ
• x
• =
• a
• +
• b
• x
• [
• Equation
• ⁢
• 3
• ]
• wherein in Equation 1, Tx is a T1-dependent function value of a function represented by f(T1) in Equations 2 and 4, n is a positive integer of 1 or greater, and σx is represented by Equation 3;
• wherein in Equation 2 and Equation 4, T1 is a thickness of the light absorbing layer comprising the any one point of the light absorbing layer on which the component analysis is conducted, and T0 is 80 nm;
• and
• wherein in Equation 3, a means an element content ratio of molybdenum (Mo), b means an element content ratio of titanium (Ti), and x means an element content ratio of oxygen (O) in Chemical Formula 1.