Decorative member and method for preparing same
The present disclosure relates to 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 an electrochromic device provided on one surface of the color developing layer.
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
an electrochromic device provided on one surface of the color developing layer.
2. The decoration element of claim 1 , wherein the color developing layer further comprises a color film provided on a surface of the light reflective layer opposite to the surface facing the light absorbing layer, between the light reflective layer and the light absorbing layer, or on a surface of the light absorbing layer opposite to the surface facing the light reflective layer.
3. The decoration element of claim 1 , wherein the color developing layer further comprises a substrate provided on a surface of the light reflective layer opposite to the surface facing the light absorbing layer, or on a surface of the light absorbing layer opposite to the surface facing the light reflective layer.
4. The decoration element of claim 1 , wherein the electrochromic device comprises an anode, an anode-side electrochromic layer, an electrolyte layer, a cathode-side electrochromic layer and a cathode.
5. The decoration element of claim 1 , wherein the electrochromic device further comprises a substrate provided on a surface of the anode opposite to the surface adjoining the anode-side electrochromic layer, or on a surface of the cathode opposite to the surface adjoining the cathode-side electrochromic layer.
6. The decoration element of claim 1 , wherein the light absorbing layer comprises two or more points with different thicknesses.
7. The decoration element of claim 1 , wherein the light absorbing layer comprises one or more regions in which an upper surface comprises an incline surface with an inclined angle of greater than 0 degrees and less than or equal to 90 degrees, and the light absorbing layer comprises one or more regions having a thickness different from a thickness in any one region having the inclined surface.
8. The decoration element of claim 1 , wherein the light absorbing layer has dichroism of ΔE*ab>1.
9. The decoration element of claim 1 , wherein an upper surface of the light absorbing layer comprises 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.
10. The decoration element of claim 9 , wherein, in the pattern having a cone-shaped protrusion or groove, two or fewer of the same shapes are present when rotating the cone-shaped pattern 360 degrees based on the vertex of the cone and observing from the upper surface.
11. The decoration element of claim 9 , 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 same shape is present when rotating 360 degrees based on the center of gravity of the upper surface and observing from the upper surface.
12. The decoration element of claim 1 , wherein the light absorbing layer has a refractive index of 0 to 8 at 400 nm.
13. 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 4 at 400 nm.
14. The decoration element of claim 1 , which is a deco film or a case of a mobile device.