WO2019199036A1 - Decoration member and method for manufacturing same - Google Patents

Abstract

The present application relates to a decoration member and a method for manufacturing same.

Description

Decorative member and manufacturing method thereof

This application is subject to the Korean Patent Application No. 10-2018-0041562 filed with the Korean Intellectual Property Office on April 10, 2018 and the Korean Patent Application No. 10-2018-0103927 filed to the Korean Patent Office on August 31, 2018. Claiming benefit, the entire contents of which are incorporated herein by reference.

The present application relates to a decorative member and a method of manufacturing the same.

In cosmetic containers, various mobile devices, and home appliances, product design, for example, color, shape, and pattern play a big role in adding value to customers. Product preference and price also depend on the design.

For example, in the case of a cosmetic compact container, various colors and colors are implemented in various ways and applied to a product. There is a method of giving a color to the case material itself and a method of attaching a decor film that implements color and shape to the case material to give a design.

The expression of color in the existing deco film was intended to be implemented through printing, deposition, and the like. When expressing heterogeneous colors on a single surface, it should be printed two or more times, and when it is desired to apply a variety of colors to a three-dimensional pattern, it is practically difficult to implement. In addition, the existing deco film is fixed in color depending on the viewing angle, even if there is a slight change is limited to the degree of difference in color.

[Preceding technical literature]

[Patent Documents]

Patent Document 1: Republic of Korea Patent Publication No. 10-2010-0135837

The present application relates to a decorative member and a method of manufacturing the same.

The present application is described; A pattern layer provided on one surface of the substrate and including a convex structure or a concave structure arranged in two dimensions; And an inorganic layer provided on the pattern layer, wherein the two-dimensionally arranged structure forms an angle of 1 degree or more and 175 degrees or less in a clockwise direction with a first axial direction and the first axial direction. It is provided with a decorative member arranged in the second axial direction.

The present specification comprises the steps of preparing a substrate; Forming a pattern layer including a convex structure or a concave structure that is two-dimensionally arranged on one surface of the substrate; And forming an inorganic layer provided on the pattern layer, wherein the two-dimensionally arranged structure has a first axis direction and a clockwise direction with respect to the first axis direction. It provides a manufacturing method of the above-mentioned decorative member which is arranged in the second axial direction forming an angle of.

The decorative member according to the exemplary embodiment of the present specification may exhibit dichroism in two or more directions as it includes a pattern layer including a two-dimensionally convex structure or a concave structure.

The present application has a dichroism showing a different color depending on the viewing direction provides a decorative member and a method for manufacturing a decorative member that can adjust the number and the degree of expression of the dichroic expression.

1 to 4 illustrate a laminated structure of a decorative member according to an exemplary embodiment of the present specification.

5 shows a method of determining a first axis direction and a second axis direction.

6 to 16, 19 and 20 show a decorative member according to an embodiment of the present disclosure.

17 illustrates a method of distinguishing a light absorption layer and a light reflection layer.

18 is a view illustrating a principle in which color is expressed by the light absorption layer and the light reflection layer.

21 shows a one-dimensional asymmetric pattern of Comparative Example 1. FIG.

22 and 23 show a two-dimensional asymmetric pattern of Example 1. FIG.

24 to 34 show changes in brightness depending on the viewing direction of the decorative members of the first to eleventh embodiments.

35 and 36 show a two-dimensional asymmetric pattern of Example 12. FIG.

FIG. 37 is a view illustrating changes in brightness according to the viewing direction of the decorative member of Example 12. FIG.

38 shows the first direction and the second direction of the embodiment.

39 to 43 show the shape of the light absorption layer.

Hereinafter, this specification is demonstrated in detail.

In this specification, the term “or” means “and / or” when it includes any or all of the listed items, unless otherwise defined.

In the present specification, the term "layer" means covering 70% or more of the area in which the layer exists. It means preferably covering at least 75%, more preferably at least 80%.

In this specification, a "cross section" means the surface when the said convex structure or the said concave structure was cut | disconnected in either direction. For example, the cross section may mean a surface when the convex structure or the concave structure is cut when the decorative member is placed on the ground in a direction parallel to the ground or perpendicular to the ground.

In the present specification, the "two-dimensionally arranged structures" may mean "two-dimensionally arranged convex structures" or "two-dimensionally arranged concave structures".

In the present specification, the "convex structure" means a structure having a convex shape as compared with other parts of the periphery, and the shape thereof is not limited unless it is particularly limited.

In the present specification, the "concave-shaped structure" means a structure having a concave shape compared to other portions around the periphery, and the shape thereof is not limited unless it is particularly limited.

In the present specification, the "convex portion" means a cross section in one direction of the convex structure, and the "concave portion" means a cross section in either direction of the "concave structure".

In this specification, the "cross section of an asymmetric structure" means that the figure comprised by the edge of a cross section is a structure which does not have line symmetry or point symmetry. Line symmetry refers to the property of overlapping when a figure is symmetric about a straight line. Point symmetry means that when a figure is rotated 180 degrees around a point, it has a symmetrical property that completely overlaps the original figure. Here, the edge of the cross section of the asymmetric structure may be a straight line, a curve or a combination thereof.

이며, 0<ΔE^*ab<1의 범위 내에서는 관찰자가 색 차이를 인식할 수 없다[참고문헌: Machine Graphics and Vision 20(4):383-411]. 따라서, 본 명세서에서는 이색성을 ΔE^*ab>1로 정의할 수 있다.As described above, the decorative member may express dichroism by the convex structure or the concave structure included in the pattern layer. Dichroism means that different colors are observed depending on the viewing angle. The color can be represented by CIE L * a * b *, and the color difference can be defined using a distance (ΔE ^* ab) in L * a * b * space. Specifically, the color difference is

In the range 0 <ΔE ^* ab <1, the observer cannot perceive the color difference (Ref. Machine Graphics and Vision 20 (4): 383-411). Therefore, in the present specification, dichroism may be defined as ΔE ^* ab> 1.

In this specification, the "thickness" of a layer means the shortest distance from the lower surface of the layer to the upper surface.

In the present specification, the "direction" of the "first direction" and the "second direction" is an inclination angle having a larger inclination angle from an inclination edge having a smaller inclination angle among the first inclination edge and the second inclination surface of the cross section of the structure. Can mean direction.

1 to 4 illustrate a laminated structure of a decorative member according to an exemplary embodiment of the present specification.

1 illustrates a laminated structure of a decorative member in which the substrate 100, the pattern layer 200, and the inorganic layer 300 are sequentially provided.

4 illustrates a laminated structure of a decorative member according to an exemplary embodiment of the present specification. The laminated structure of the decorative member in the case where the inorganic layer 300 includes the light absorption layer 301 and the light reflection layer 302 is illustrated.

1 to 4, reference numeral 400 may mean a protective layer.

The present specification; A pattern layer provided on one surface of the substrate and including a convex structure or a concave structure arranged in two dimensions; And an inorganic layer provided on the pattern layer, wherein the two-dimensionally arranged structure forms an angle of 1 degree or more and 175 degrees or less in a clockwise direction with a first axial direction and the first axial direction. It is provided with a decorative member arranged in the second axial direction. The decorative member has a pattern layer including a two-dimensionally convex structure or a concave structure, thereby having the effect that the dichroism of the decorative member can appear in various directions. On the other hand, by adjusting the direction in which the structure is arranged in a specific angle range, it has the effect of adjusting the direction in which the dichroism appears in the desired range.

In one embodiment of the present specification, the decorative member includes a pattern layer including a two-dimensionally convex structure or a concave structure. The two-dimensional arrangement of the structures means that the directions in which the structures are arranged are two different directions. For example, as shown in FIG. 5, the highest point of any convex structure or the lowest point of concave structure C0 and the highest point of any convex structure or other convex structure adjacent to the convex structure or the lowest point C1 of concave structure. The line segment that follows is called the first axis, and the line segment that is adjacent to the arbitrary convex structure or concave structure and is the highest point of another convex structure not present on the first axis or the lowest point C2 of the concave structure. When referred to as a second axis, it means that arranged in two directions, the first axis direction and the second axis direction.

In one embodiment of the present specification, the decorative member includes an inorganic material layer provided on the structure. The inorganic layer may be a single layer or a multilayer structure in which two or more materials are different. In addition, since the inorganic layer is provided on the convex structure of the pattern layer, the shape of the inorganic layer may be determined by various forms of the convex structure. The inorganic layer will be described later.

In one embodiment of the present specification, the two-dimensionally arranged structure is in a second axial direction forming an angle of 1 degree or more and 175 degrees or less in a clockwise direction with the first axial direction and the first axial direction. Are arranged.

In the present specification, the "first axis direction" means a direction of a straight line formed by the first axis, and the "second axis direction" means a direction of a straight line formed by the second axis.

In the present specification, the "first axis direction" and the "second axis direction" may mean any one direction in which two or more identical cross sections appear in the cross section of the structure. For example, a direction parallel to the first axis that is a line segment connecting the highest point C1 of the convex structure or the concave structure of FIG. 5 is called a first axis direction, and a direction parallel to the second axis is referred to as a second axis direction. can do.

For example, referring to FIG. 5, a first axis of the convex structure of the pattern layer of the decorative member of FIG. 5 is a first axis of a straight line from the highest point C0 of any convex structure to the highest point C1 of the most adjacent convex structure. It is called. Further, a line segment connecting the highest point C2 of another adjacent convex structure of the highest point C0 of the arbitrary convex structure may be referred to as a second axis.

In one embodiment of the present specification, the "highest point" of the convex structure means the most convex portion of the convex structure, and may mean any point of the convex structure closest to the inorganic layer. If the most convex part of the convex structure is pointed, this point is the highest point. In addition, when the highest point of the convex structure is two or more, specifically, when the highest portion of the convex structure is a plane, the center point of the plane may be referred to as the highest point. For example, when the convex structure is a truncated cone, the highest point of the convex structure forms a circle of planar shape, and the center point of the circle may be referred to as the highest point of the convex structure.

In one embodiment of the present specification, the first axis direction and the second axis direction in the clockwise angle of the virtual plane formed by the first axis and the second axis, the first axis and the second axis This clockwise angle can be measured and calculated.

In one embodiment of the present specification, the two-dimensionally arranged structure may be arranged in a second axial direction forming an angle of 30 degrees or more and 150 degrees in a clockwise direction with the first axial direction and the first axis. have.

In one embodiment of the present specification, the number of the convex structure or the concave structure is 1 / mm ² to 1,000,000 pieces / mm ² , preferably 1 / μm ² to 500,000 pieces / μm relative to the area of the pattern layer surface ² , more preferably 1 / μm ² to 250,000 / μm ² . When the numerical range is satisfied, the number of the convex and concave structures included in the pattern layer is adjusted, so that the dichroism is further increased. In this case, mm ² of the denominator means 1 mm ² of the unit area of the surface of the pattern layer.

The area of the surface of the pattern layer may be the total area of the pattern layer including the structure, and the number of structures refers to the number of structures in the area. The number of structures can be calculated by counting the highest point of the convex structure or the lowest point of the concave structure.

In one embodiment of the present specification, the decorative member includes a cross section (Z1) which cuts the convex structure or the concave structure into a first plane; And a decorative member having at least one of a cross section Z2 cut into a second plane, wherein the first plane includes a straight line parallel to the first axial direction, and the second plane is the second axial direction. And a straight line parallel to the first plane and the second plane including a straight line passing through the highest point of the convex structure or the lowest point of the concave structure among the normals of one surface of the substrate.

In this case, since a cross section appearing in any one or more directions of the structure is a cross section of an asymmetric structure, the decorative member may exhibit dichroism in a specific direction. For example, when the cross section Z1 cut by the first plane is a cross section of an asymmetric structure, the decorative member may exhibit dichroism in a first axial direction, and the cross section Z2 cut by the second plane may be an asymmetric structure. In the cross section of, the decorative member may exhibit dichroism in the second axial direction.

In addition, as described above, by adjusting the angle between the first axis direction and the second axis direction, there is an advantage that the direction of the dichroism represented by the decorative member can be adjusted.

In one embodiment of the present specification, a cross section (Z1) cut the convex structure or concave structure in a first plane; And the cross section Z2 cut into the second plane is a cross section of an asymmetric structure. In this case, there is an effect that the decorative member can exhibit dichroism in both directions of the first axial direction and the second axial direction.

In one embodiment of the present specification, the first plane and the second plane may be virtual planes satisfying the above-described descriptions of each.

In one embodiment of the present specification, a cross section (Z1) cut the convex structure or concave structure in a first plane; And the cross section Z2 cut into the second plane is the same or different from each other, and each has a convex shape or a concave shape having a cross section of an asymmetric structure.

In one embodiment of the present specification, a cross section (Z1) cut the convex structure or concave structure in a first plane; And the cross section Z2 cut into the second plane may be the same as or different from each other, and may each be an isosceles triangle. An isosceles triangle means triangles with three different lengths.

In one embodiment of the present specification, a cross section (Z1) cut the convex structure or concave structure in a first plane; And the cross section Z2 cut into the second plane may be different from each other. For example, the cross section Z1 of the convex structure or the concave structure cut into the first plane is a triangle having both inclination angles of 20 degrees and 70 degrees, respectively, and the cross section Z2 of the second plane has both inclination angles of 10 degrees and It may be a triangle that is 80 degrees.

In one embodiment of the present specification, a flat portion may be further included between the convex structure or the concave structure. The flat portion may mean a region without a convex structure or a concave structure, and the concave structure may be applied to the description of the convex structure except that the above-described convex structure is an inverted shape.

In an exemplary embodiment of the present specification, the convex portion or the concave portion having the cross section of the asymmetric structure includes at least one cross section having two or more sides having different inclination angles, different degrees of curvature, or different sides. For example, when two sides of at least one cross section constituting at least one cross section have different inclination angles, different degrees of bending, or different sides, the convex portions or concave portions have an asymmetrical structure.

In the present specification, unless otherwise indicated, "side" may be a straight line, but is not limited thereto, and all or part of the curve may be curved. For example, the sides may include a portion of an arc of a circle or ellipse, a wave structure, a zigzag structure, or the like.

 In the present specification, when the variation includes a portion of an arc of a circle or an ellipse, the circle or ellipse may have a radius of curvature. The radius of curvature may be defined as the radius of the arc when the extremely short section of the curve is converted into an arc.

In the present specification, unless otherwise indicated, the term "inclined side" means the side of the angle when the decorative member is placed on the ground is more than 0 degrees and less than 90 degrees. At this time, when the side is a straight line, the angle between the straight line and the ground can be measured. When the side includes a curve, when the decorative member is placed on the ground, the angle formed by the straight line connecting the point closest to the ground and the furthest point from the ground among the sides at the shortest distance can be measured. Can be.

In the present specification, unless otherwise stated, the term "inclined surface" means a surface of which the angle formed by the surface with respect to the ground is greater than 0 degrees and less than 90 degrees when the decorative member is placed on the ground. At this time, when the plane is a plane, the angle between the plane and the ground can be measured. When the surface includes a curved surface, when the decorative member is placed on the ground, an angle formed by a straight line connecting the point closest to the ground and the farthest point among the surface with the ground is measured. Can be.

In this specification, unless otherwise stated, an inclination angle is an angle which the surface or side which comprises the said pattern layer with the ground when the said decoration member is placed on the ground, is more than 0 degree and 90 degrees or less. Alternatively, a line segment (a'-b ') generated when the point (a') where the face or side of the pattern layer is in contact with the ground and the point (b ') farthest from the face or side of the pattern layer are connected to each other. ) May mean an angle formed by the ground.

In this specification, unless otherwise stated, the degree of curvature refers to the degree of change in the slope of the tangent at successive points on the side or face. The greater the change in the slope of the tangent at successive points on the side or face, the greater the degree of curvature.

In an exemplary embodiment of the present specification, the cross section of the asymmetric structure includes a first inclined side and a second inclined side different from each other.

In one embodiment of the present specification, the edge of the cross section of the asymmetric structure is a straight line, a curve or a combination thereof.

In one embodiment of the present specification, the first inclined side and the second inclined side are straight lines, curved lines, or a combination thereof.

6 shows that the first inclined side and the second inclined side have a straight line shape. Each convex shape includes a first region D1 including a first slope and a second region D2 including a second slope. The first slope and the second slope are straight. An angle c3 formed between the first inclined side and the second inclined side may be 75 degrees to 105 degrees. The angle c1 between the first inclined edge and the ground (base) is different from the angle c2 between the second inclined edge and the ground. For example, the combination of c1 and c2 may be 20 degrees / 80 degrees, 10 degrees / 70 degrees or 30 degrees / 70 degrees.

7 shows that the shape of the first slope or the second slope is curved. Each convex shape includes a first region E1 including a first inclined side and a second region E2 including a second inclined side. For example, both the first slope and the second slope may be curved, the first slope may be straight, and the second slope may be curved. When the first inclined side is in a straight line shape and the second inclined side is in a curved form, the angle c1 may be greater than the angle c2. FIG. 7 illustrates that the first inclined side has a straight line shape and the second inclined side has a curved line shape. The angle between the inclined side having a curved shape and the ground can be calculated from the angle formed by the straight line and the ground when an arbitrary straight line is drawn from a point where the inclined side and the ground meets to a point where the first inclined side and the second inclined side meet. . The curved second slope may have a different degree of curvature according to the height of the pattern layer, and the curved line may have a radius of curvature. The radius of curvature may be 10 times or less than the pitch E1 + E2 of the convex shape. Fig. 7A shows that the radius of curvature of the curve is twice the pitch of the convex portion, and Fig. 7B shows that the radius of curvature of the curve is one times the pitch of the convex portion. The ratio of the curvature portion E2 to the pitch E1 + E2 of the convex portion may be 90% or less. 7 (a) and 7 (b) show that the ratio of the curvature portion E2 to the pitch E1 + E2 of the convex portion is 60%.

In one embodiment of the present specification, the cross section of the asymmetric structure may be a polygonal shape of a triangle or a square.

In one embodiment of the present specification, the convex shape P1 may be triangular or have a shape further including a small concave portion P3 at a tip portion (a pointed portion or a vertex portion) of the triangle. 8 exemplarily shows that the convex portion P1 including the concave portion P3 is arranged. The convex portion may have a shape further including a concave portion P3 having a height smaller than that of the convex portion. Such a decorative member may have an effect that the image color is slightly changed depending on the viewing angle.

9 shows that the convex portion has a rectangular shape. The rectangular shape may be a general rectangular shape, and is not particularly limited as long as the inclination angles of the inclined sides are different from each other. The quadrangular shape may be a form in which a triangle is partially cut off. For example, the pair may have a trapezoid in which parallel pairs of quadrilaterals are parallel, or a quadrangle in which pairs of parallel pairs do not exist. The convex shape includes a first region F1 including a first inclined side, a second region F2 including a second inclined side, and a third region F3 including a third inclined side. The third inclined side may or may not be parallel to the ground. For example, when the rectangular shape is trapezoidal, the third slope is parallel to the ground. At least one of the first to third slopes may have a curved shape, and the details of the curved shape are the same as those described in the fifth embodiment. The length of the sum of F1 + F2 + F3 may be defined as the pitch of the convex portion, and the details of the pitch are as described above.

10 shows a method of determining the convex portion shape. The convex shape may be a shape in which a specific area of the ABO1 triangle shape is removed. The method of determining the specific region to be removed is as follows. The contents of the inclination angles c1 and c2 are the same as described above.

1) Set any point P1 on the AO1 segment that divides the AO1 segment by the L1: L2 ratio.

2) Set any point P2 on the BO1 segment that divides the BO1 segment by the m1: m2 ratio.

3) Set any point O2 on the AB segment that divides the AB segment by the ratio n1: n2.

4) Set any point P3 on the O1O2 segment that divides the O2O1 segment by the ratio o1: o2.

In this case, L1: L2, m1: m2, n1: n2 and o1: o2 ratio may be the same or different from each other, and each independently 1: 1000 to 1000: 1.

5) Remove the area formed by P1O1P2P3 polygon.

6) ABP2P3P1 The shape formed by the polygon is defined as the cross section of the convex portion.

The convex shape may be modified in various forms by adjusting the ratios of L1: L2, m1: m2, n1: n2 and o1: o2. For example, when the L1 and m1 increases, the height of the pattern may increase, and when the o1 increases, the height of the concave portion formed on the convex portion may decrease, and the convex portion may be formed by adjusting the ratio of n1. The position of the lowest point of the concave portion can be adjusted close to either of the inclined sides of the convex portion.

When the L1: L2, m1: m2, and o1: o2 ratios are all the same, the cross section may have a trapezoidal shape (FIG. 11). The height (ha, hb) of the trapezoid can be varied by adjusting the ratio of L1: L2. For example, FIG. 11 (a) shows the shape of the convex portion manufactured when the ratio of L1: L2 is 1: 1 and the ratio of L1: L2 is 2: 1.

In one embodiment of the present specification, the angle formed by the first inclined side and the second inclined side may be within a range of 80 degrees to 100 degrees. Specifically, it may be 80 degrees or more, 83 degrees or more, 86 degrees or more, or 89 degrees or more, and 100 degrees or less, 97 degrees or less, 94 degrees or less, or 91 degrees or less. The angle may refer to the angle of the vertex consisting of the first inclined side and the second inclined side. When the first inclined side and the second inclined side do not form a vertex with each other, the first inclined side and the second inclined side may mean an angle of a vertex in a state in which a vertex is formed.

In one embodiment of the present specification, the difference between the inclination angles of the first inclined side and the second inclined side may be in a range of 30 degrees to 70 degrees. The difference between the inclination angle a2 of the first inclined side and the inclination angle a3 of the second inclined side may be, for example, 30 degrees or more, 35 degrees or more, 40 degrees or more, or 45 degrees or more, 70 degrees or less, 65 degrees or less. , 60 degrees or less or 55 degrees or less. When the difference between the inclination angles of the first inclination edge and the second inclination edge is within the above range, it may be advantageous in terms of implementation of color representation according to the direction.

In an exemplary embodiment of the present specification, a cross section Z3 cut into a plane including the first axis and the second axis of the convex structure or the concave structure may be in the form of a square, a rectangle, or a polygon. For example, the angle between the first axis and the second axis is 90 degrees, and the distance d1 between the highest points of the convex structures arranged in the first axial direction and the convex structures arranged in the second axial direction. When the interval d2 between the highest points is the same, the cross section of the convex structure in the plane formed by the first axis and the second axis may be square.

In one embodiment of the present specification, two or more convex structures having heights different from each other in one of the first and second directions may be included. 12 is a cross section Z1 of the convex structure or concave structure cut into a first plane; Or the cross-section Z2 cut | disconnected by the 2nd plane is shown, respectively.

12 is a cross section Z1 of the convex structure or concave structure cut into a first plane; And the cross section Z2 cut | disconnected by the 2nd plane shows that the 2nd convex part shape whose height is small compared with the said convex part shape is arrange | positioned between the convex part shape P1. The second convex structure having a smaller height than the convex structure may be arranged between the convex structures.

Hereinafter, the convex structure named before the second convex structure may be referred to as a first convex structure, and the convex portion named before the second convex shape may be referred to as a first convex shape.

In one embodiment of the present specification, the height H2 of the second convex portion shape P2 has a range of 1/5 to 1/4 of the height H1 of the first convex portion shape P1. Can be. For example, the difference H1-H2 between the height of the first convex portion and the shape of the second convex portion may be 10 μm to 30 μm. The width W2 of the shape of the second convex portion may be 1 μm to 10 μm. The width W2 of the shape of the second convex portion may be specifically 1 μm or more, 2 μm or more, 3 μm or more, 4 μm or more, or 4.5 μm or more, and 10 μm or less, 9 μm or less, 8 μm or less, and 7 μm. 6 μm or less or 5.5 μm or less.

In one embodiment of the present specification, the shape of the second convex portion may have two inclined surfaces S3 and S4 having different inclination angles. The angle a4 formed by the two inclined surfaces of the second convex portion may be 20 degrees to 100 degrees. The angle a4 may be specifically 20 degrees or more, 30 degrees or more, 40 degrees or more, 50 degrees or more, 60 degrees or more, 70 degrees or more, 80 degrees or more, or 85 degrees or more, and 100 degrees or less or 95 degrees or less. have. The difference a6-a5 of the inclination angles of both inclined surfaces of the second convex portion may be 0 to 60 degrees. The difference a6-a5 of the inclination angle may be 0 degrees or more, 10 degrees or more, 20 degrees or more, 30 degrees or more, 40 degrees or more, or 45 degrees or more, and 60 degrees or less or 55 degrees or less. When the size of the shape of the second convex portion is within the above range, it may be advantageous in terms of increasing the inflow of light from the side having a large inclined plane angle to form a bright color.

In the present specification, the inclination angles a2 and a3 of the convex portion P1 may refer to angles formed between the inclined surfaces S1 and S2 of the convex portion P1 and the horizontal plane of the pattern layer. In the drawings, unless otherwise specified, the first inclined plane may be defined as a left inclined plane of the convex portion, and the second inclined plane may mean a right inclined plane of the convex shape.

In one embodiment of the present specification, the convex shape P1 may have a polygonal cross section and a column shape extending in one direction.

In an exemplary embodiment of the present specification, the height H3 of the recess P3 may be 3 μm to 15 μm. The height H3 of the recess P3 may be specifically 3 μm or more, and may be 15 μm or less, 10 μm or less, or 5 μm or less. The concave portion may have two inclined surfaces S5 and S6 having different inclination angles. An angle a7 formed by the two inclined surfaces of the recess may be 20 degrees to 100 degrees. The angle a7 may be specifically 20 degrees or more, 30 degrees or more, 40 degrees or more, 50 degrees or more, 60 degrees or more, 70 degrees or more, 80 degrees or more, or 85 degrees or more, and 100 degrees or less or 95 degrees or less. have. The difference a9-a8 between the inclination angles of both inclined surfaces of the recess may be 0 to 60 degrees. The difference (a9-a8) of the inclination angle may be 0 degrees or more, 10 degrees or more, 20 degrees or more, 30 degrees or more, 40 degrees or more, or 45 degrees or more, and 60 degrees or less or 55 degrees or less. When the size of the concave portion is in the above range it may be advantageous in terms of adding color in the mirror surface.

In one embodiment of the present specification, the convex structure may be arranged in an inverted structure in one of the first direction and the second direction. 13 exemplarily shows such an arrangement structure. As shown in Fig. 13A, the structures are arranged in an inverted structure of 180 degrees in either of the first direction and the second direction. Specifically, the inverted structure may include a first region C1 having a larger inclination angle of the second inclined surface than a first inclined surface and a second region C2 having a larger inclination angle of the first inclined surface relative to the second inclined surface. Can be. The convex portion included in the first region may be referred to as a first convex portion P1, and the convex portion included in the second region may be referred to as a fourth convex portion P4. The height, width, inclination angle, and angle formed by the first and second inclined surfaces of the first convex portion P1 and the fourth convex portion P4 may be the same as those described in the items of the convex portion P1. have. In addition, as shown in FIG. 13B, any one of the first area and the second area may correspond to an image or a logo, and the other area may correspond to a background part. Such a decorative member may have an effect that the image or logo color is softly changed depending on the viewing angle. In addition, the color may change depending on the direction in which the image or logo portion and the background portion look.

In one embodiment of the present specification, the height H1 of the convex portion shape P1 may be 5 μm to 30 μm.

In one embodiment of the present specification, the height H1 of the convex structure may be 5 μm to 30 μm. If the height of the convex structure is in the above range may be advantageous in terms of production process. In the present specification, the height of the convex structure may mean the shortest distance between the highest portion and the lowest portion of the convex portion with respect to the horizontal plane of the pattern layer. In the description relating to the height of the convex portion, the same numerical range may be applied to the depth of the concave portion described above.

In one embodiment of the present specification, the width W1 of the convex portion shape P1 may be 10 μm to 90 μm. If the width of the convex shape is within the above range, it may be advantageous in terms of process for processing and forming the pattern. The width W1 of the convex portion shape P1 may be, for example, 10 μm or more, 15 μm or more, 20 μm or more, or 25 μm or more, 90 μm or less, 80 μm or less, 70 μm or less, 60 μm or less, It may be 50 μm or less, 40 μm or less or 35 μm or less. Descriptions relating to this width may apply not only to the convex portions, but also to the concave portions described above.

In one embodiment of the present specification, the planar portion between the two-dimensionally arranged convex structure or concave structure further comprises.

In one embodiment of the present specification, a flat portion is further included between the convex portion or the concave portion shape.

In one embodiment of the present specification, the width of the flat portion may be 0 μm to 20 μm. The flat portion may be a gap between any one convex structure or concave structure and an adjacent convex structure or concave structure. This may mean the shortest distance between the point where one convex structure or concave structure ends and the point where the other convex structure or concave structure starts.

When the width of the flat portion is properly maintained, the decorative member should have a relatively bright color when viewed from the side of the inclined surface where the inclination angle of the convex portion is larger, thereby improving the phenomenon that the reflection area is dark due to shading.

In one embodiment of the present specification, the convex structure or the concave structure is a convex structure of a cone shape protruding out of the surface of the pattern layer or a cone shape of the cone recessed inside the surface of the pattern layer. It may be a concave structure.

In one embodiment of the present specification, the cone shape includes the shape of a cone, an elliptical cone, or a polygonal pyramid. Here, the shape of the bottom surface of the polygonal pyramid includes a triangle, a square, and a star shape having five or more protruding points. According to an example, when the decorative member is placed on the ground, when the surface of the pattern layer has a cone-shaped convex shape, at least one of the vertical cross-sections of the convex shape with respect to the ground may be triangular in shape. . According to another example, when the decorative member is placed on the ground, when the surface of the pattern layer has a concave shape of a cone, at least one of the vertical cross-sections of the concave shape with respect to the ground is an inverted triangle shape. Can be.

In one embodiment of the present specification, the cone-shaped convex portion or the cone-shaped concave structure may have at least one cross section of an asymmetric structure. For example, when the convex portion or the concave portion of the cone shape is observed from the surface side of the convex portion or the concave portion, when two or less identical forms exist when rotating 360 degrees from the vertex of the cone, the dichroism is It is advantageous to be expressed. Fig. 14 shows the convex shape of the cone shape observed from the surface side of the convex shape, (a) shows the cone shape of the symmetrical structure, and (b) shows the cone shape of the asymmetric structure. It is illustrated.

When the decorative member is placed on the ground, the cone shape of the symmetrical structure has a circular cross section (hereinafter referred to as a horizontal cross section) in a direction horizontal to the ground, or a regular polygon having the same length of each side, and the vertex of the cone is on the ground. It is a structure existing on a line perpendicular to the cross section of the center of gravity of the horizontal cross section for. However, a cone shape having a cross section of an asymmetric structure is, when observed from the surface side of the shape of a cone-shaped convex structure or a concave structure, on the vertical line of the point where the position of the vertex of the cone is not the center of gravity of the horizontal cross section of the cone. Or a horizontal cross section of a cone that is a polygon or ellipse of an asymmetric structure. When the horizontal cross section of the cone is a polygon of an asymmetric structure, at least one of the sides or angles of the polygon may be designed differently from the rest.

For example, as shown in FIG. 15, the position of the vertex of the cone can be changed. Specifically, as shown in the first picture of Figure 15, when the cone vertex of the cone when viewed from the surface side of the convex structure is designed to be located on the vertical line of the center of gravity (01) of the horizontal cross section with respect to the ground of the cone, Four identical structures can be obtained by rotating 360 degrees around the vertices of (4 fold symmetry). However, the symmetrical structure is broken by designing the vertices of the cone at position 02, not the center of gravity 01 of the horizontal cross section with respect to the ground. The length of one side of the horizontal cross section with respect to the ground x, the distance of the cone's vertices a and b, the height of the cone shape, the length of the line connected vertically from the vertex of the cone (01 or 02) to the horizontal cross section with respect to the ground. h, the angle formed between the horizontal cross section and the side surface of the cone is? n, and a cosine value can be obtained as described below with respect to planes 1, 2, 3 and 4 of FIG.

At this time, since θ1 and θ2 are the same, there is no dichroism. However, since θ3 and θ4 are different, and │θ3 to θ4│ mean a color difference E * ab between two colors, they may exhibit dichroism. Where? 3-? 4 |> 0. Thus, by using the angle between the horizontal cross section and the side surface of the cone surface, it is possible to quantitatively indicate how the symmetrical structure is broken, that is, the degree of asymmetry. Proportional.

In addition to the structure illustrated above, a convex structure or a concave structure having a cross section of various convex portions or concave portions as shown in FIG. 16 may be implemented.

In the present specification, unless otherwise stated, the "face" may be a plane, but is not limited thereto, and all or part of the surface may be curved. For example, the shape of the cross section in a direction perpendicular to the plane may include a portion of an arc of a circle or ellipse, a wave structure, a zigzag structure, or the like.

In one embodiment of the present specification, the pattern layer further includes a pattern having a symmetrical structure. Symmetrical structures include prismatic structures and lenticular lens structures.

In one embodiment of the present specification, the pattern layer has a flat portion on the opposite side of the surface on which the convex structure or the concave structure is formed. In addition, the flat portion may be formed on the base layer. A plastic substrate can be used as the substrate layer. Examples of the plastic substrate include triacetyl cellulose (TAC); COP (cyclo olefin copolymer) such as norbornene derivatives; Poly (methyl methacrylate); PC (polycarbonate); PE (polyethylene); PP (polypropylene); PVA (polyvinyl alcohol); DAC (diacetyl cellulose); Pac (Polyacrylate); PES (poly ether sulfone); PEEK (polyetheretherketon Polyphenylsulfone (PPS), polyetherimide (PEI); polyethylenemaphthatlate (PEN); polyethyleneterephtalate (PET); polyimide (PI); polysulfone (PSF); polyarylate (PAR) or amorphous fluorocarbon resin, but is not limited thereto. no.

In one embodiment of the present specification, the pattern layer may include a thermosetting resin or an ultraviolet curable resin. Photocurable resin or thermosetting resin can be used as said curable resin. Ultraviolet curable resin can be used as said photocurable resin. As the thermosetting resin, for example, silicone resin, silicon resin, fran resin, polyurethane resin, epoxy resin, amino resin, phenol resin, urea resin, polyester resin or melamine resin may be used, but is not limited thereto. . UV curable resins typically include acrylic polymers such as polyester acrylate polymers, polystyrene acrylate polymers, epoxy acrylate polymers, polyurethane acrylate polymers or polybutadiene acrylate polymers, silicone acrylate polymers or alkyl acrylates. Polymers and the like may be used, but are not limited thereto.

In one embodiment of the present specification, a color dye may be further included inside or at least one surface of the pattern layer. The inclusion of a colored dye on at least one surface of the pattern layer may mean, for example, a case where the colored dye is included in the above-described base layer provided on the flat portion side of the pattern layer.

In one embodiment of the present specification, the colored dye is an anthraquinone dye, a phthalocyanine dye, a thioindigo dye, a perinone dye, isoxindigo ) -Based dyes, methane-based dyes, monoazo-based dyes, and 1: 2 metal complex dyes.

In one embodiment of the present specification, when the pattern layer includes a colored dye therein, it may be applied by adding a dye to the curable resin. When further comprising a colored dye in the lower portion of the pattern layer, it may be applied by coating a layer containing the dye on the upper or lower portion of the base layer.

In one embodiment of the present specification, the content of the colored dye may be, for example, 0 to 50 wt%. The content of the colored dye may determine the transmittance and haze range of the pattern layer to the decorative member, the transmittance may be, for example, 20% to 90%, and the haze may be, for example, 1% to 40%.

In the present specification, the inorganic layer may have the same convex portion or concave portion as the surface of the convex structure or concave structure of the pattern layer described above.

In one embodiment of the present specification, the inorganic layer may have the same slope as the surface of the pattern layer described above.

The inorganic layer may have the same convex structure or concave structure as the surface of the pattern layer described above. The inorganic layer may have the same slope as the surface of the pattern layer described above.

In one embodiment of the present specification, the inorganic layer is 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 (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au) and silver ( Ag) one or two or more materials selected from Ag, oxides thereof; Nitrides thereof; Oxynitrides thereof; It is a single layer or multiple layers containing 1 type, or 2 or more types of material of a carbon and carbon composites.

In one embodiment of the present specification, the inorganic layer may have a refractive index of 0 to 8 for light having a wavelength of 400nm. When the refractive index of the inorganic layer is out of the range, the reflected light decreases and may not be appropriate. The refractive index of the inorganic layer may be specifically 0 or more, 1 or more, 2 or more, 3 or more, 4 or more, or 4.5 or more, 8 or less, 7 or less, 6 or less, or 6.5 or less.

In one embodiment of the present specification, the thickness of the inorganic layer may be, for example, 10nm to 1㎛. When the thickness of the inorganic layer is within the above range, it may be advantageous to provide a decorative member having dichroism showing a different color depending on the viewing direction and improving the dichroic visibility. The inorganic layer may have a thickness of, for example, 10 nm or more, 50 nm or more, or 100 nm or more, and may be 1 μm or less, 800 nm or less, 600 nm or less, 400 nm or less, or 300 nm or less. The decorative member may exhibit dichroism showing different colors depending on the viewing direction. The decorative member can improve the dichroic visibility by modifying the surface shape of the pattern layer.

In one embodiment of the present specification, the inorganic layer may give a metallic texture and depth of color when looking at a decorative member. The inorganic layer may be viewed in various colors according to the viewing angle of the image of the decorative member. This is because the wavelength of the light passing through the pattern layer and reflected from the surface of the inorganic layer changes according to the wavelength of the incident light.

In an exemplary embodiment of the present specification, the inorganic layer includes a light absorption layer and a light reflection layer sequentially provided on the pattern layer, or include a light reflection layer and a light absorption layer sequentially provided on the pattern layer.

In the present specification, the light absorption layer and the light reflection layer are named according to their function. For light having a specific wavelength, a layer that reflects light relatively much may be represented by a light reflection layer, and a layer that reflects light relatively little may be represented by a light absorption layer.

17, the light absorption layer and the light reflection layer will be described. In the decorative member of FIG. 17, each layer is laminated in the order of L _i-1 layer, L _i layer, and L _{i + 1} layer based on the direction of light input, and between the L _i-1 layer and the L _i layer. Interface I _i is located at, and interface I _{i + 1} is located between the L _i layer and the L _{i + 1} layer.

When irradiating light having a specific wavelength in a direction perpendicular to each layer so that thin film interference does not occur, the reflectance at the interface Ii may be expressed by Equation 1 below.

[Equation 1]

In Equation 1, n _i (λ) denotes a refractive index according to the wavelength λ of the i-th layer, and k _i (λ) denotes an extinction coefficient according to the wavelength λ of the i-th layer. Means. The extinction coefficient is a measure that can define how strongly the target material absorbs light at a particular wavelength, as defined above.

By applying Equation 1 above, when the sum of reflectances for each wavelength at the interface I _i calculated at each wavelength is R _i , R _i is represented by Equation 2 below.

[Equation 2]

At this time, when Ii has the largest R _i among the interfaces of the laminate, the layer which is in contact with the interface Ii and faces the interface Ii and the direction in which the light enters may be defined as the light reflection layer and the remaining layer as the light absorption layer. For example, even in a laminated body shown in Fig. 17, when the sum of the wavelength specific reflectivity of the interface I _{i + 1} the largest, in contact with I _{i + 1,} the interface I _{i + 1} and the light is located opposite to the incoming direction The layer L _{i + 1} layer may be defined as a light reflection layer, the remaining layers L _i-1 and L _i layers as light absorbing layers.

In the light absorbing layer, light is absorbed at the incident path and the reflecting path of the light, and the light is reflected at the surface of the light absorbing layer and at the interface between the light absorbing layer and the light reflecting layer, respectively, so that the two reflected light beams reinforce or cancel each other. In the present specification, the light reflected from the surface of the light absorbing layer may be represented by the surface reflected light, the light reflected from the interface between the light absorbing layer and the light reflecting layer. Figure 18 shows a schematic diagram of such a principle of action. 18 illustrates a structure in which the substrate 101, the light reflection layer 201, and the light absorption layer 301 are stacked in this order, but the substrate is located below the light reflection layer, but is not essential.

The light reflected from the surface of the light absorbing layer may be represented by the surface reflected light, and the light reflected from the interface between the light absorbing layer and the light reflecting layer may be represented as interface reflected light.

In one embodiment of the present specification, the light absorption layer preferably has a refractive index (n) of 0 to 8 at a wavelength of 400 nm, may be 0 to 7, may be 0.01 to 3, may be 2 to 2.5 have. The refractive index n may be calculated as sin θa / sin θb (θa is the angle of light incident on the surface of the light absorption layer, and θb is the angle of refraction of light inside the light absorption layer).

In one embodiment of the present specification, the light absorption layer has a extinction coefficient k at a wavelength of 400 nm greater than 0 and 4 or less, preferably 0.01 to 4, 0.01 to 3.5, 0.01 to 3 days And, it may be 0.1 to 1. The extinction coefficient (k) is -λ / 4πI (dI / dx) (wherein the path unit length (dx) in the light absorption layer, for example, the reduction fraction dI / I of light intensity per meter, multiplied by λ / 4π, Where λ is the wavelength of light.

In one embodiment of the present specification, the light absorption layer has a extinction coefficient k at a wavelength of 380 to 780 nm greater than 0 and 4 or less, preferably 0.01 to 4, 0.01 to 3.5, 0.01 to 3 It may be, and may be 0.1 to 1. Since the extinction coefficient k is in the above range in the entire visible light wavelength range of 380 to 780 nm, preferably 400 nm, it may serve as a light absorbing layer within the visible light range.

Even if they have the same refractive index (n) value, when the extinction coefficient k value is 0 and the extinction coefficient k value is 0.01 at 380 to 780 nm, the difference may be> 1. For example, when simulating the case where D65 (solar spectrum) is irradiated to a laminated structure of glass / aluminum / aluminum oxide / air layer as a light source, ΔE ^* ab when k value of the aluminum oxide is 0 and 0.01 Was obtained as shown in Table 1 below. At this time, the thickness h1 of the aluminum layer was 120 nm, and the thickness h2 of the aluminum oxide layer is shown in Table 1 below. The k value was arbitrarily set to 0 and 0.01 for the simulation, and the n value was used as the aluminum value.

h2 [nm] k = 0 k = 0.01 △ E * ab L * a * b * L * a * b * 40 6.63 1.75 -1.25 85.18 2.09 0.03 1.96 60 9.83 -4.02 -8.30 87.86 -4.06 -9.01 2.10 80 5.60 -1.87 -2.58 94.44 -2.05 -2.86 1.20

In one embodiment of the present specification, the light absorbing layer may be a single layer or a multilayer of two or more layers. The light absorption layer may be made of a material having an extinction coefficient k at 380 to 780 nm, that is, a material having an extinction coefficient greater than 0 and 4 or less, preferably 0.01 to 4. For example, the light absorption layer may include one or two or more selected from the group consisting of metals, metalloids, and oxides, nitrides, oxynitrides and carbides of metals or metalloids. Oxides, nitrides, oxynitrides or carbides of the metal or metalloid can be formed by deposition conditions set by those skilled in the art. The light absorption layer may include the same metal, metalloid, two or more kinds of alloys or oxynitrides as the light reflection layer. In one embodiment of the present specification, the light absorption layer may be formed 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 ( Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au) and silver (Ag), one or two or more materials selected from oxides and oxides thereof; Nitrides thereof; Oxynitrides thereof; It is a single layer or a multilayer including one or two or more materials of carbon and carbon composites. In one embodiment of the present specification, the light absorbing layer includes silicon (Si) or germanium (Ge). The light absorption layer made of silicon (Si) or germanium (Ge) has a refractive index (n) of 0 to 8 and may be 0 to 7 at 400 nm, and an extinction coefficient (k) of more than 0 to 4 or less, preferably 0.01 to 4, and may be 0.01 to 3 or 0.01 to 1.

In one embodiment of the present specification, the light absorption layer may be made of a material having an extinction coefficient (k) at 400 nm, preferably 380 to 780 nm, for example, the light absorption layer / light reflection layer may be CuO / Cu, CuON / Cu. , CuON / Al, AlON / Al, AlN / Al / AlON / Cu, AlN / Cu or the like.

The light reflecting layer is not particularly limited as long as it is a material capable of reflecting light, but the light reflectance may be determined depending on the material, for example, color is easily implemented at 50% or more. Light reflectance can be measured using an ellipsometer.

In one embodiment of the present specification, the light reflection layer may be a metal layer, a metal oxynitride layer or an inorganic layer. The light reflection layer may be composed of a single layer, or may be composed of two or more multilayers.

For example, the light reflection layer may be formed 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 (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au) and silver (Ag) It may be a single layer or multiple layers comprising one or two or more materials, oxides, nitrides or oxynitrides thereof, one or two or more of carbon and carbon composites.

For example, the light reflection layer may include two or more alloys selected from the above materials, oxides, nitrides or oxynitrides thereof. For example, the light reflection layer may include two or more alloys selected from the metals. More specifically, the light reflection layer may include molybdenum, aluminum or copper. According to another example, the light reflection layer may be manufactured using an ink containing carbon or a carbon composite to implement a high resistance reflective layer. Carbon or carbon composites include carbon black and CNT. The ink containing the carbon or carbon composite material may include the above-described materials or oxides, nitrides or oxynitrides thereof, such as 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 (Nb), Iron (Fe), Chromium (Cr), One or two or more oxides selected from cobalt (Co), gold (Au), and silver (Ag) may be included. After printing the ink containing the carbon or carbon composite, a curing process may be further performed.

When the light reflection layer includes two or more kinds of materials, two or more kinds of materials may be formed using a single process, for example, a method of deposition or printing. A method of forming a layer thereon from one or more materials can be used. For example, after indium or tin is deposited to form a layer, the ink containing carbon may be printed and cured to form a light reflection layer. The ink may further include an oxide such as titanium oxide and silicon oxide.

According to one embodiment, the light absorption layer may have a thickness of 5 to 500 nm, for example, 30 to 500 nm.

In one embodiment of the present specification, the thickness of the light reflection layer may be determined according to the desired color in the final structure, for example, 1 nm or more, preferably 25 nm or more, such as 50 nm or more, preferably 70 nm or more. .

In one embodiment of the present specification, the light absorbing layer may exhibit various shapes by adjusting deposition conditions and the like when forming the light absorbing layer.

In one embodiment of the present specification, the light absorbing layer includes two or more points having different thicknesses.

In one embodiment of the present specification, the light absorbing layer includes two or more regions having different thicknesses.

In one embodiment of the present specification, the light absorption layer may include an inclined surface.

39 and 40 show examples of the structure of the light absorption layer according to the embodiment. 39 and 40 illustrate a structure in which the light reflection layer 201 and the light absorption layer 301 are stacked (pattern layer and description are omitted). 39 and 40, the light absorption layer 301 has two or more points having different thicknesses from each other. 39, the thickness of the light absorption layer 301 at point A and point B is different. According to FIG. 40, the thickness of the light absorption layer 301 in region C and region D is different.

In one embodiment of the present specification, the light absorbing layer includes at least one region having an inclined surface having an inclination angle greater than 0 degrees and less than 90 degrees, and the light absorbing layer is different from a thickness in an area having any inclined surface. At least one region having a thickness. The inclined surface may be defined as the inclined surface of an angle formed by a straight line included in the upper surface of the light absorption layer and a straight line parallel to the light reflection layer. For example, the inclination angle of the upper surface of the light absorption layer of FIG. 39 may be about 20 degrees.

Surface characteristics such as the inclination of the upper surface of the light reflection layer may be the same as the upper surface of the light absorption layer. For example, by using a deposition method in forming the light absorbing layer, the upper surface of the light absorbing layer may have the same slope as the upper surface of the light reflecting layer. However, the inclination of the upper surface of the light absorption layer of FIG. 39 is different from the inclination of the upper surface of the light reflection layer.

41 illustrates the structure of a decorative member having a light absorption layer having an inclined surface on its upper surface. The substrate 101, the light reflection layer 201, and the light absorption layer 301 are laminated, and the thickness t1 in the E region of the light absorption layer 301 is different from the thickness t2 in the F region.

FIG. 41 relates to a light absorbing layer having an inclined surface facing each other, that is, a triangular cross section. In the structure of the pattern having the inclined surfaces facing each other as shown in FIG. 41, the thickness of the light absorbing layer may vary in two surfaces of the triangular structure even when deposition is performed under the same conditions. Accordingly, the light absorption layer having two or more regions having different thicknesses can be formed by only one process. As a result, the expression color is different depending on the thickness of the light absorption layer. At this time, the thickness of the light reflection layer does not affect the color change if it is above a certain level.

41 illustrates a structure in which the substrate 101 is provided on the light reflection layer 201 side, but is not limited to such a structure, and the position of the substrate 101 may be disposed at other positions as described above. .

42 has a flat surface in contact with the light reflection layer 201, and a surface in contact with the light reflection layer 201 of the substrate 101 has the same slope as the top surface of the light reflection layer 201. Can have This is shown in FIG. 42. In this case, a difference in the thickness of the light absorbing layer may occur due to the difference in the slope of the pattern of the substrate. However, the present invention is not limited thereto, and even though the substrate and the light absorbing layer have different inclinations using different deposition methods, the thickness of the light absorbing layer may be different on both sides of the pattern to show dichroism.

In one embodiment of the present specification, the light absorbing layer includes one or more regions whose thickness gradually changes. 43 illustrates a structure in which the thickness of the light absorption layer 301 is gradually changed.

In an exemplary embodiment of the present specification, the light absorbing layer includes at least one region having an inclined surface having an inclination angle greater than 0 degrees and less than 90 degrees, and at least one or more of the areas having the inclined surface have a progressive thickness of the light absorbing layer. It has a structure that changes to. 43 illustrates a structure of a light absorbing layer including a region having an inclined surface on an upper surface thereof. In the region G and H of FIG. 43, the upper surface of the light absorption layer has an inclined surface, and the thickness of the light absorption layer gradually changes.

In the present specification, the structure in which the thickness of the light absorbing layer is changed, the cross section in the thickness direction of the light absorbing layer includes a point where the thickness of the light absorbing layer is the smallest and the point where the thickness of the light absorbing layer is the largest, the light absorbing layer It means that the thickness of the light absorbing layer increases along the direction with respect to the point where the thickness of the light absorbing layer is the point where the thickness of the smallest. In this case, the point where the thickness of the light absorption layer is the smallest and the point where the thickness of the light absorption layer is the largest may mean any point on the interface with the light reflection layer of the light absorption layer.

In one embodiment of the present specification, the light absorbing layer includes a first region having a first inclined surface having an inclination angle in a range of 1 to 90 degrees, and an upper surface thereof is different from the first inclined surface, or an inclined direction, May further include two or more regions having different inclined surfaces or whose top surfaces are horizontal. In this case, the thickness of the light absorption layer in the first region and the two or more regions may be different from each other.

Decorative member according to another embodiment of the present application, between the pattern layer and the inorganic layer; An opposite surface of the surface of the pattern layer that faces the inorganic layer; Or a color film provided on an opposite side of the surface of the inorganic layer that faces the pattern layer.

Decorative member according to another embodiment of the present application is between the pattern layer and the inorganic layer; Between the light absorption layer and the light reflection layer; An opposite surface of the surface of the pattern layer that faces the inorganic layer; Or a color film provided on an opposite side of the surface of the inorganic layer that faces the pattern layer.

The color film is a color difference Δ which is a distance in a space of L * a * b * on the color coordinate CIE L * a * b * of the color development layer when the color film is present as compared with the case where the color film is not provided. It will not specifically limit, if E ^* ab is made to exceed 1.

이며, 0<ΔE^*ab<1의 범위 내에서는 관찰자가 색 차이를 인지할 수 없다[참고문헌: Machine Graphics and Vision 20(4):383-411]. 따라서, 본 명세서에서는 칼라필름의 추가에 따른 색차를 ΔE^*ab>1로 정의할 수 있다. The color can be represented by CIE L * a * b *, and the color difference can be defined using a distance (ΔE ^* ab) in L * a * b * space. Specifically,

And within the range of 0 <ΔE ^* ab <1 the observer cannot perceive the color difference (Ref. Machine Graphics and Vision 20 (4): 383-411). Therefore, in the present specification, the color difference according to the addition of the color film may be defined as ΔE ^* ab> 1.

By further providing such a color film, even when the material and thickness of the inorganic material layer such as the light reflection layer and the light absorption layer are determined, it is possible to further increase the width of the color that can be realized. The color change width according to the addition of the color film may be defined as a color difference (ΔE ^* ab), which is a difference between L * a * b * before and after applying the color film.

19 illustrates an arrangement position of the color film. (However, convex structure and concave structure on the surface of the pattern layer 101, protective layer and substrate not shown)

19A illustrates a structure in which a color film 401 is provided on an opposite side of the light reflection layer 201 side of the light absorption layer 301, and in FIG. 19B, the color film 401 includes a light absorption layer 301. ) And the light reflection layer 201, the structure of the color film 401 is provided between the light reflection layer 201 and the pattern layer 101 in (c) of FIG. 19, (d) The structure of the color film 401 is provided on the opposite surface of the light reflection layer 201 side of the pattern layer 101. In (e) of FIG. 19, color films 401a, 401b, 401c, and 401d respectively have opposite surfaces on the light reflection layer 201 side of the light absorption layer 301, between the light absorption layer 301 and the light reflection layer 201, respectively. The structure provided between the reflective layer 201 and the pattern layer 101 and on the opposite side of the light reflection layer 201 side of the pattern layer 101 is illustrated, but is not limited thereto, and color films 401a, 401b, 1 to 3 of 401c and 401d may be omitted.

According to another exemplary embodiment of the present specification, the arrangement position of the color film in the structure in which the light reflection layer 301 and the light absorption layer 201 are sequentially provided on the pattern layer 101 is illustrated in FIG. 20 (pattern layer Convex structure on the surface of 101 is omitted).

20A illustrates a structure in which the color film 401 is provided on the opposite side of the light absorbing layer 301 side of the pattern layer 101. In FIG. 20B, the color film 401 includes the pattern layer 101. FIG. ) And the light absorbing layer 301, the structure of the color film 401 is provided between the light absorbing layer 301 and the light reflection layer 201, (c) in Figure 20, (d) The structure of the color film 401 is provided on the opposite side of the light absorption layer 301 side of the light reflection layer 201. In (e) of FIG. 20, the color films 401a, 401b, 401c, and 401d each have a surface opposite to the light absorbing layer 301 side of the pattern layer 101, between the pattern layer 101 and the light absorbing layer 301, respectively. The structure provided between the light absorption layer 301 and the light reflection layer 201 and on the opposite side of the light absorption layer 301 side of the light reflection layer 201 is illustrated, but is not limited thereto, and color films 401a and 401b. , 1 to 3 of 401c and 401d may be omitted.

19 (b) and 20 (c) have a structure in which the light incident layer can reflect light incident through the color film when the visible light transmittance of the color film is greater than 0%. Color can be implemented accordingly.

19 (c), 19 (d) and 20 (d), the light of the color expressed from the color film of the light reflection layer 201 so that the color difference change due to the addition of the color film can be recognized. It is preferred that the transmittance is at least 1%, preferably at least 3%, more preferably at least 5%. This is because the light transmitted in the visible light transmittance range may be mixed with the color by the color film.

The color film may be provided in a state where one or two or more of the same kind or different kinds are stacked.

The color film may be used in combination with the color expressed from the laminated structure of the light reflection layer and the light absorption layer described above to express a desired color. For example, a color film in which one or two or more of pigments and dyes are dispersed in a matrix resin and exhibit color can be used. The color film as described above may be formed by coating the composition for forming a color film directly at a position where the color film may be provided, or coating the composition for forming a color film on a separate substrate, or known molding such as casting or extrusion After manufacturing the color film using the method, a method of arranging or attaching the color film at a position where the color film may be provided may be used. The coating method may be wet coating or dry coating.

Pigments and dyes that may be included in the color film may be selected from those known in the art as to achieve a desired color from the final decorative member, red, yellow, purple, blue, pink 1 type, or 2 or more types of pigments and dyes, such as a series, can be used. Specifically, perinone-based red dye, anthraquinone-based red dye, methine-based yellow dye, anthraquinone-based yellow dye, anthraquinone-based violet dye, phthalocyanine-based blue dye, thioindigo-based pink dye, iso Dyes such as isoxindigo-based pink dyes may be used alone or in combination. Carbon black, copper phthalocyanine (C.I. Pigment Blue 15: 3), C.I. Pigments such as Pigment Red 112, Pigment blue, and Isoindoline yellow may be used alone or in combination. As the dye or pigment as described above, commercially available ones may be used, and for example, a material such as Ciba ORACET Co., Ltd. and Kwang Paint Co. may be used. The types of dyes or pigments and their colors are only examples, and various known dyes or pigments may be used, thereby realizing more various colors.

As the matrix resin included in the color film, materials known as materials such as a transparent film, a primer layer, an adhesive layer, and a coating layer may be used, and are not particularly limited thereto. For example, various materials such as acrylic resins, polyethylene terephthalate resins, urethane resins, linear olefin resins, cycloolefin resins, epoxy resins, triacetyl cellulose resins, and the like may be selected, and copolymers of the above exemplified materials or Mixtures may also be used.

When the color film is disposed closer to the position for observing the decorative member than the light reflection layer or the light absorption layer, for example, (a), (b), (a), (b) and (c) of FIG. 19. In such a structure, the color film has a light transmittance of 1% or more, preferably 3% or more, and more preferably 5% or more of the color expressed from the light reflection layer, the light absorption layer, or the laminated structure of the light reflection layer and the light absorption layer. desirable. As a result, the color expressed from the color film and the color expressed from the light reflection layer, the light absorbing layer, or a laminated structure thereof may be combined together to achieve a desired color.

The thickness of the color film is not particularly limited, and if the desired color can be represented, one of ordinary skill in the art can select and set the thickness. For example, the thickness of the color film may be 500 nm to 1 mm.

Exemplary decorative members and methods of manufacturing the decorative members can be applied to a known object requiring the application of the decorative member. For example, the present invention may be applied without limitation to portable electronic devices, electronic products, cosmetic containers, furniture, building materials, and the like.

The method of applying the decorative member to a portable electronic device, an electronic product, a cosmetic container, a furniture, a building material, etc. is not particularly limited, and a known method known as a method of applying a decor film in the art may be applied. The decorative member may further include an adhesive layer as necessary. In another example, the decorative member may be applied by direct coating to a portable electronic device or an electronic product. In this case, a separate adhesive layer for attaching the decorative member to a portable electronic device or an electronic product may not be necessary. In another example, the decorative member may be attached to a portable electronic device or an electronic product through the adhesive layer. The adhesive layer may use an optically clear adhesive tape (OCA tape) or an adhesive resin. The OCA tape or adhesive resin may be applied without limitation OCA tape or adhesive resin known in the art. If necessary, a release liner for protecting the adhesive layer may be further provided.

In one embodiment of the present specification, the substrate may include a plastic injection molded product or a glass substrate for a cosmetic container.

In one embodiment of the present specification, the plastic injection molding is polypropylene (PP), polystyrene (PS), polyvinylacetate (PVAc), polyacrylate (polyacrylate), polyethylene terephthalate (PET), polyvinyl chloride (PVC ), Polymethyl methacrylate (PMMA), ethylene-vinyl acetate copolymer (EVA), polycarbonate (PC), polyamide, and styrene-acrylonitrile copolymer It may be to include.

In one embodiment of the present specification, each of the first direction color difference ΔE ₁ represented by the following formula ₁ and the second direction color difference ΔE ₂ represented by the following formula 2 exceeds 1 respectively.

In Formula 1 and Formula 2,

의 관계식이고,The first direction color difference is measured at two points on a straight line parallel to the first axial direction of the decorative member.

Is a relational expression of

의 관계식이다.The second direction color difference is measured at two points on a straight line perpendicular to the first axis direction of the decorative member.

Is a relational expression.

When the first direction color difference ΔE ₁ represented by Formula ₁ and the second direction color difference ΔE ₂ represented by Formula 2 exceed 1, respectively, in both the first direction and the second direction Dichroism may appear. That is, the dichroism appears in two or more viewing directions, so that the viewer can feel various colors.

In one embodiment of the present specification, the cosmetic container may be a cosmetic compact nameplate, but is not limited thereto.

In one embodiment of the present specification, the sheet resistance of the decorative member is 20 ohms / square or more.

In one embodiment of the present specification, the sheet resistance of the decorative member is at least 1 gigaohm / square, more preferably at least 4 gigaohm / square. It can be seen that the electromagnetic shielding effect is maximized in the above range.

In the present specification, the sheet resistance is It can be measured using a known surface resistor according to the 4-point probe method. The sheet resistance is measured by measuring current (I) and voltage (V) with four probes and measuring resistance value (V / I), and then adding the area (cross-section, W) of the sample to the distance between electrodes ( L) is used to obtain the sheet resistance (V / I x W / L), and the resistance correction factor (RCF) is multiplied to calculate the sheet resistance unit in ohms / square. The resistance correction coefficient may be calculated using the size of the sample, the thickness of the sample, and the temperature at the measurement, which may be calculated by the Poisson equation.

The present specification comprises the steps of preparing a substrate; Forming a pattern layer including a convex structure or a concave structure that is two-dimensionally arranged on one surface of the substrate; And forming an inorganic layer provided on the pattern layer, wherein the two-dimensionally arranged structure has a first axis direction and a clockwise direction with respect to the first axis direction. It provides a method of manufacturing a decorative member which is arranged in a second axial direction forming an angle of.

Method of manufacturing a decorative member according to an embodiment of the present specification includes the step of forming a pattern layer including a convex structure or concave structure arranged two-dimensionally on one surface of the substrate.

In the exemplary embodiment of the present specification, the forming of the pattern layer may be performed by applying a curable resin composition on the substrate and pressing and curing the mold with a desired pattern. The mold may for example have a flat form or a roll form. As the mold, for example, a soft mold or a hard mold may be used.

In one embodiment of the present specification, the forming of the inorganic layer provided on the pattern layer may include depositing an inorganic layer on the surface of the convex structure or the concave structure.

In one embodiment of the present specification, the forming of the inorganic layer may be by a sputtering method. Sputtering is a method in which energetic ions (for example, Ar ⁺ ) impact the target material, and the target material released at this time is deposited on the surface of the convex structure of the pattern layer. In this case, the base pressure may be 1.0 × 10 ⁻⁵ Torr or less, 6.0 × 10 ⁻⁶ Torr or less, preferably 3.0 × 10 ⁻⁶ Torr or less.

In one embodiment of the present specification, the sputtering method may be performed in a chamber including a plasma gas and / or a reactive gas. The plasma gas may be an argon (Ar) gas. In addition, the reactive gas is oxygen (O ₂ ) and nitrogen (N ₂ ) and is a gas for providing oxygen or nitrogen atoms, and is distinguished from the plasma gas.

In an exemplary embodiment of the present specification, in the forming of the inorganic layer, the flow rate of the plasma gas may be 10 sccm or more and 300 sccm or less, preferably 20 sccm or more and 200 sccm or less. The sccm means Standard Cubic Centimeer Per minute.

In one embodiment of the present specification, the process pressure p1 in the chamber may be 1.0 mTorr to 10.0 mTorr, preferably 1.5 mTorr to 6 mTorr. If the process pressure during sputtering is higher than the above range, the Ar particles present in the chamber increase, and the particles of zinc oxide emitted from the target collide with the Ar particles to lose energy, thereby decreasing the growth rate of the thin film. On the other hand, if too low process pressure is maintained, the substrate may be damaged or the quality of the inorganic layer may be degraded by particles having high energy.

In one embodiment of the present specification, the fraction of the reactive gas to the plasma gas may be 30% or more and 70% or less, preferably 40% or more and 70% or less, and more preferably 50% or more and 70% or less. The fraction of the reactive gas may be calculated as (Q _{reactive gas} / (Q _{plasma process gas} + Q _{reactive gas} ) * 100%). The Q _{reactive gas} may mean a flow rate of the _{reactive gas} in the chamber, and the Q _{plasma process gas} may be a flow rate of the _{plasma process gas} in the chamber.

In one embodiment of the present specification, the driving power of the sputtering method may be 100W or more and 500W or less, preferably 150W or more and 300W or less.

In one embodiment of the present specification, the voltage applied in the sputtering method may be 350V or more and 500V. The range of the voltage may be adjusted according to the state of the target, the process pressure, the driving power (process power) or the fraction of the reactive gas.

In one embodiment of the present specification, the deposition temperature of the sputtering method may be 20 ° C or more and 300 ° C or less. When deposited at a temperature lower than the above range, there is a problem in that the crystallinity of the thin film growth is deteriorated due to insufficient energy necessary for crystal growth of particles falling off the target and arriving at the substrate. There may be a problem that the thin film growth rate is lowered due to evaporation or re-evaporation.

Hereinafter, the present application will be described in detail with reference to Examples, but the scope of the present specification is not limited by the following Examples.

<Examples and Comparative Examples>

Comparative Example 1 (One-dimensional asymmetric pattern)

An ultraviolet curable resin was applied on the PET substrate, the hard mold having a pattern arranged in one dimension was pressed, and then cured with ultraviolet rays to form a convex structure pattern arranged in one dimension. The pattern was formed in a repeating structure of the prism structure of FIG. 21, and the inclination angle of one side of the pattern was 20 °, and the inclination angle of the opposite side was 70 °. At this time, the pitch of the patterns was 47.1 micrometers and the height of the pattern was 15.1 micrometers.

Subsequently, an AlON light absorption layer is formed on the convex structure by using reactive sputtering, which is performed by adding nitrogen (N ₂ ) to argon (Ar) in a chamber equipped with an aluminum (Al) target (Al: 57.9 at%, N: 36.8 at%, O: 5.3 at%), about 20 nm or 40 nm thick.

Thereafter, an Al light reflection layer was deposited to a thickness of about 100 nm on the light absorption layer by using a sputtering method using only argon (Ar). (at% means atomic percent.)

Example 1 (two-dimensional asymmetrical pattern: angle 90 degrees)

Instead of the convex structure pattern arranged in one dimension of Comparative Example 1, the decorative member in the same manner as in Comparative Example 1 except that a hard mold having a pattern arranged in two dimensions is pressed to form a convex structure arranged in two dimensions Was prepared.

At this time, the angle between the first axial direction and the second axial direction of the convex structures arranged in two dimensions in the clockwise direction was 90 degrees. In addition, a schematic diagram of the convex structure is arranged in Figure 22, the three-dimensional appearance of the convex structure is shown in Figure 23. In addition, the change in brightness along the viewing direction is observed and shown in FIG. 24.

Examples 2 to 11 (two-dimensional asymmetric pattern: angle 90 degrees)

One side and the opposite inclination angle of the pattern were changed as shown in Table 2 below to show the color coordinate values L * a * b * according to the viewing direction.

Each figure shows the color when looking at the decorative member in the viewing angle coordinate system. Coordinates may be represented by (θ, φ). When the z-axis is perpendicular to the plane direction of the decorative member and one of the plane directions of the decorative member is the x-axis, the angle between the z-axis and the viewing direction is θ, and the angle between the x-axis and the viewing direction is φ. It is called. When phi was 0 degrees (θ, 0), the L *, a * and b * values according to the change of θ were measured. For information on the viewing angle coordinate system, see IES type B Reference [IES-LM-75-01 Goniophotometer Types and Photometric Coordinates (title), IES (author), (Illuminating Engineering Society of North America, 2001)].

One side tilt angle Opposite slope angle drawing Example 2 10 ° 80 ° Figure 25 Example 3 12 ° 78 ° Figure 26 Example 4 14 ° 76 ° Figure 27 Example 5 16 ° 74 ° Figure 28 Example 6 18 ° 72 ° Figure 29 Example 7 22 ° 68 ° Figure 30 Example 8 24 ° 66 ° Figure 31 Example 9 26 ° 64 ° Figure 32 Example 10 28 ° 62 ° Figure 33 Example 11 30 ° 60 ° Figure 34

Example 12 (two-dimensional asymmetrical pattern: angle 135 degrees)

A decorative member was manufactured in the same manner as in Comparative Example 1 except that a hard mold having a pattern arranged in two dimensions was pressed to form a convex structure arranged in two dimensions.

At this time, the angle between the first axial direction and the second axial direction of the convex structures arranged in two dimensions in the clockwise direction was 135 degrees. In addition, a schematic diagram of the convex structure is arranged in Figure 35, the three-dimensional appearance of the convex structure is shown in Figure 36. In addition, the change in brightness along the viewing direction is observed and shown in FIG. 37.

Experimental Example

The CIE L * a * b * color coordinates of Comparative Example 1, Examples 1 and 2 were measured. At this time, a CM2600d colorimeter manufactured by Konica Minolta was used. As the light source, standard light D65 was used.

To the first direction, a color difference (△ E ₁₎ in the second direction color difference (△ E ₂₎ represented by the formula 2 and of formula 1 were measured.

의 관계식이고,The first direction color difference is measured at two points on a straight line parallel to the first axial direction of the decorative member.

Is a relational expression of

의 관계식이다.The second direction color difference is measured at two points on a straight line perpendicular to the first axis direction of the decorative member.

Is a relational expression.

In this case, the 1-2 direction of FIG. 38 corresponds to the first direction, and the 3-4 direction corresponds to the second direction.

1) Comparative Example 1 Observation of Decorative Members

When the thickness of the light absorbing layer in the decorative member of Comparative Example 1 is about 20 nm, the CIE L * a * b * color coordinates of each position were measured and shown in Table 3 below.

In Comparative Example 1, when the light absorption layer was 20 nm, since the 1-2 direction of the measurement direction coincided with the first axial direction of the decorative member pattern layer, it was confirmed that ΔE * ab appeared to be large at 24.70. On the other hand, in the 3-4 direction perpendicular to the first axial direction, ΔE * ab is 0.89, which represents a value less than 1, and therefore it is difficult to confirm dichroism with the human eye. That is, dichroism appears only in the measurement directions 1 and 2.

In addition, when the thickness of the light absorption layer of the decorative member of Comparative Example 1 is about 40nm, the CIE L * a * b * color coordinates according to each position was measured and shown in Table 4 below.

In the case of the comparative example 1, since 1-2 directions of the measurement direction corresponded to the 1st axial direction of a decorative member pattern layer, it was confirmed that (DELTA) E * ab was large in 16.65. On the other hand, in the 3-4 direction perpendicular to the first axial direction, ΔE * ab is 0.79, which represents a value less than 1, and therefore it is difficult to confirm dichroism with the human eye. That is, dichroism appears only in the measurement directions 1 and 2.

2) Example 1 Observation of Decorative Members

When the thickness of the light absorbing layer in the decorative member of Example 1 is about 20 nm, CIE L * a * b * color coordinates were measured at each position and are shown in Table 5 below. When the thickness of the light absorption layer of the decorative member of Example 1 is about 20 nm,? E * ab is 13.53 in the 1-2 directions and 3-4 directions that are the same as the first and second axial directions of the decorative member pattern layer. It can be seen that it appears as 12.18. That is, unlike Comparative Example 1 in which the direction in which dichroism appears is limited to one direction, it can be confirmed that in Example 1, dichroism is expressed to a similar degree in two directions.

In addition, when the thickness of the light absorbing layer of the decorative member of Example 1 is about 40nm, CIE L * a * b * color coordinates were measured at each position and are shown in Table 6 below.

When the thickness of the light absorption layer of the decorative member of Example 1 is about 40 nm, ΔE * ab is 12.43 in the 1-2 directions and 3-4 directions that are the same as the first and second axial directions of the decorative member pattern layer. It was confirmed that it appeared as 9.64. That is, unlike Comparative Example 1 in which the direction in which dichroism appears is limited to one direction, it can be confirmed that in Example 1, dichroism is expressed to a similar degree in two directions.

3) Example 2 Observation of Decorative Members

When the thickness of the light absorbing layer in the decorative member of Example 2 is about 20 nm, CIE L * a * b * color coordinates were measured at each position and are shown in Table 7 below.

When the thickness of the light absorption layer of the decorative member of Example 2 is about 20 nm, ΔE * ab is 7.94 in the 1-2 directions and 3-4 directions that are the same as the first and second axial directions of the decorative member pattern layer. It was confirmed that it appears as 17.40. Unlike Comparative Example 1 in which dichroism appeared in a limited direction, in Example 2, it was confirmed that dichroism appeared in two directions. In addition, in Example 1, unlike the degree of dichroism similar in both directions, it can be seen that in Example 2 there is a difference in the degree of dichroism appearing in both directions.

When the thickness of the light absorbing layer in the decorative member of Example 2 is about 40 nm, CIE L * a * b * color coordinates were measured at each position and are shown in Table 8 below.

When the thickness of the light absorption layer of the decorative member of Example 2 is about 40 nm,? E * ab is 7.00 in the 1-2 and 3-4 directions which are the same as the first and second axial directions of the decorative member pattern layer. It can be seen that it appears as 18.51. Unlike Comparative Example 1 in which dichroism appeared in a limited direction, in Example 2, it was confirmed that dichroism appeared in two directions. In addition, in Example 1, unlike the degree of dichroism similar in both directions, it can be seen that in Example 2 there is a difference in the degree of dichroism appearing in both directions.

Claims (22)

materials; A pattern layer provided on one surface of the substrate and including a convex structure or a concave structure arranged in two dimensions; And Including an inorganic material layer provided on the pattern layer, And the two-dimensionally arranged structures are arranged in a first axial direction and in a second axial direction at an angle of at least 1 degree and at most 175 degrees in a clockwise direction with the first axial direction. The decorative member according to claim 1, wherein the two-dimensionally arranged structures are arranged in a first axial direction and in a second axial direction at an angle of 30 degrees to 150 degrees clockwise with the first axis. The method according to claim 1, wherein the convex structure or the concave structure is the number of the first pattern layer over the area of the surface piece / mm ² to 1,000,000 / mm ² of the decorative member. The method of claim 1, wherein the cross section (Z1) cut the convex structure or concave structure in a first plane; And a decorative member having at least one of a cross section Z2 cut into the second plane, an asymmetric structure, The first plane includes a straight line parallel to the first axial direction, the second plane includes a straight line parallel to the second axial direction, And the first plane and the second plane include a straight line passing through the highest point of the convex structure or the lowest point of the concave structure among the normals of one surface of the substrate. The decorative member according to claim 4, wherein the cross section of the asymmetric structure comprises at least one cross section having two or more sides having different inclination angles, different degrees of curvature, or different sides. The decorative member according to claim 4, wherein the cross section of the asymmetric structure includes a first inclined side and a second inclined side having different inclination angles. The decorative member according to claim 4, wherein the edge of the cross section of the asymmetric structure is a straight line, a curved line, or a combination thereof. The decorative member of claim 6, wherein an angle formed by the first inclined side and the second inclined side is in a range of 80 to 100 degrees. The decorative member of claim 6, wherein a difference between the inclination angles of the first inclined side and the second inclined side is in a range of 30 degrees to 70 degrees. The decorative member according to claim 1, further comprising a flat portion between the two-dimensionally arranged convex structures or concave structures. The decorative member according to claim 1, wherein the cross section (Z3) cut into a plane including the first axis and the second axis of the convex structure or the concave structure is in the form of a square, a rectangle or a polygon. The decorative member according to claim 1, wherein the pattern layer has a flat portion on a surface opposite to the surface on which the convex structure or the concave structure is formed. The decorative member according to claim 1, wherein the pattern layer includes a thermosetting resin or an ultraviolet curable resin. The decorative member according to claim 1, further comprising a colored dye on the inside or at least one surface of the pattern layer. The method of claim 1, wherein the inorganic layer is 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 (Nb), iron (Fe), chromium (Cr), cobalt (Co), gold (Au) and silver (Ag) One or two or more materials, oxides thereof; Nitrides thereof; Oxynitrides thereof; A decorative member that is a single layer or a multilayer comprising one or two or more materials of carbon and a carbon composite material. The decoration member according to claim 1, wherein the inorganic layer includes a light absorption layer and a light reflection layer sequentially provided on the pattern layer, or a light reflection layer and a light absorption layer sequentially provided on the pattern layer. The method according to claim 1, Between the pattern layer and the inorganic layer; An opposite surface of the surface of the pattern layer that faces the inorganic layer; Or a color film provided on an opposite side of the surface of the inorganic layer that faces the pattern layer. The method according to claim 16, Between the pattern layer and the inorganic layer; Between the light absorption layer and the light reflection layer; An opposite surface of the surface of the pattern layer that faces the inorganic layer; Or a color film provided on an opposite side of the surface of the inorganic layer that faces the pattern layer. The decorative member according to claim 1, wherein the first direction color difference ΔE ₁ represented by the following formula ₁ and the second direction color difference ΔE ₂ represented by the following formula 2 each exceed 1:

In Formula 1 and Formula 2, The first direction color difference is measured at two points on a straight line parallel to the first axial direction of the decorative member.

Is a relational expression of The second direction color difference is measured at two points on a straight line perpendicular to the first axis direction of the decorative member.

Is a relational expression. The decorative member according to claim 1, wherein the sheet resistance of the decorative member is 20 ohms / square or more. The decorative member according to claim 1, wherein the sheet resistance of the decorative member is 1 ohm / square or more. Preparing a substrate; Forming a pattern layer including a convex structure or a concave structure that is two-dimensionally arranged on one surface of the substrate; And Forming an inorganic material layer provided on the pattern layer; The two-dimensionally arranged structure of claim 1 to 21 is arranged in a second axial direction at an angle of 1 degree or more and 175 degrees in a clockwise direction (clockwise) with the first axial direction. Method for producing a decorative member according to any one of the preceding.

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