US 12,420,523 B2
Decorative member
Yong Chan Kim, Daejeon (KR); Ki Hwan Kim, Daejeon (KR); Nansra Heo, Daejeon (KR); Jeong Woo Shon, Daejeon (KR); Jin Suk Song, Daejeon (KR); and Pilsung Jo, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 16/767,944
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Dec. 14, 2018, PCT No. PCT/KR2018/015943
§ 371(c)(1), (2) Date May 28, 2020,
PCT Pub. No. WO2019/117678, PCT Pub. Date Jun. 20, 2019.
Claims priority of application No. 10-2017-0173250 (KR), filed on Dec. 15, 2017; and application No. 10-2018-0088857 (KR), filed on Jul. 30, 2018.
Prior Publication US 2020/0290311 A1, Sep. 17, 2020
Int. Cl. B32B 7/023 (2019.01); A45D 33/00 (2006.01); A45D 33/18 (2006.01); A45D 34/00 (2006.01); A45D 40/00 (2006.01); B32B 1/00 (2024.01); B32B 3/30 (2006.01); B32B 27/28 (2006.01); B44C 3/02 (2006.01); B44F 1/02 (2006.01); B44F 1/04 (2006.01); B44F 1/08 (2006.01); C23C 14/00 (2006.01); C23C 14/06 (2006.01); C23C 14/34 (2006.01); G02B 1/02 (2006.01); G02B 5/00 (2006.01); G02B 5/08 (2006.01); G02B 5/28 (2006.01); G02F 1/153 (2006.01)
CPC B32B 7/023 (2019.01) [A45D 33/006 (2013.01); A45D 33/18 (2013.01); A45D 34/00 (2013.01); A45D 40/00 (2013.01); B32B 1/00 (2013.01); B32B 3/30 (2013.01); B32B 27/281 (2013.01); B44C 3/02 (2013.01); B44F 1/02 (2013.01); B44F 1/045 (2013.01); B44F 1/08 (2013.01); C23C 14/0036 (2013.01); C23C 14/0676 (2013.01); C23C 14/34 (2013.01); G02B 1/02 (2013.01); G02B 5/003 (2013.01); G02B 5/0816 (2013.01); G02B 5/28 (2013.01); G02F 1/153 (2013.01); A45D 2034/007 (2013.01); A45D 2040/0012 (2013.01); B32B 2307/402 (2013.01); B32B 2451/00 (2013.01)] 11 Claims
OG exemplary drawing
 
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 (AlaObNc),
wherein the light absorbing layer comprises two or more points with different thicknesses,
wherein the pattern layer comprises a convex portion having an asymmetric structured cross-section,
wherein the convex portion comprises a first inclined side and a second inclined side,
wherein a difference between an inclined angle of the first inclined side and an inclined angle of the second inclined side is in a range of 30° to 70°, and an angle formed by the first inclined side and the second inclined side is in a range of 80° to 100°,
wherein the convex portion shape on the pattern layer surface is a cone-shaped, when observing the cone-shaped convex portion from a surface side of the convex portion shape, having two or less identical shapes present when rotating 360 degrees based on the vertex of the cone, and
wherein, when a transmission X-ray analysis is performed on an any one point of the light absorbing layer, ω represented by the following Equation 1 is greater than or equal to 0.81 and less than or equal to 1.8:

OG Complex Work Unit Math
wherein in Equation 1, Tx is represented by Equation 2, and σx represented by Equation 3 is greater than or equal to 1.2 and less than or equal to 1.7;
wherein in Equation 2, T1 is a thickness of the light absorbing layer comprising the any one point of the light absorbing layer on which the transmission X-ray analysis is performed T0 is 100 nm, and

OG Complex Work Unit Math
 is a maximum integer that is not greater than

OG Complex Work Unit Math
 with the proviso that when T1 is m*T0, Tx is 1 and when T1 is not m*T0, Tx satisfies Equation 2, and m is an integer of 1 or greater; and
wherein in Equation 3, a is an element content ratio of aluminum (Al), b is an element content ratio of Oxygen (O), and c means 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 on which the component analysis is performed.