KR20100060579A - Case - Google Patents

Abstract

PURPOSE: A case is provided to express light and shade, to form a plurality of domains including a first domain and a second domain on a plate to make the domains have high reflectivity gradually, and to have gradation effect. CONSTITUTION: A case comprises: a plate including a plurality of first patterns(110) which define a first domain and are extended toward a first direction and a plurality of second patterns(120) which define a second domain and are extended toward a second direction; a protective member covering the first and second patterns; and an adhesive member which is plated between the protective member and the plate. The first and second patterns are groove patterns.

Description

Case {CASE}

An embodiment relates to a case.

In the case of the refrigerator, the outer case of the door is often made of steel sheet to reinforce the strength. The steel sheets had a problem that the color was relatively monotonous.

In addition, when a unique pattern or pattern is not formed on the surface of the steel sheet, users tend not to produce a sophisticated image or a luxurious image.

Therefore, in recent years, the case 10a of the refrigerator door is made to have a stainless plate in many cases. Since the stainless steel plate has a unique luster and texture, the appearance of the refrigerator can be made more luxurious.

The embodiment is intended to provide a case having a high-quality appearance by implementing a contrast expression or a gradation effect.

According to an embodiment, the case defines a first area and includes a plurality of first patterns extending in a first direction; And a plate defining a second region, the plate including a plurality of second patterns extending in a second direction.

According to another embodiment, a method of manufacturing a case includes disposing a mask on a plate; And using the mask to etch the plate, defining a first region on the plate and defining a plurality of first patterns extending in a first direction and defining a second region on the plate in a second direction. Forming a plurality of second patterns that extend.

The case according to the embodiment includes a first region and a second region in which the first patterns and the second patterns are formed, respectively.

In this case, since the directions in which the first patterns and the second patterns are formed are different from each other, the first region and the second region have different reflectances.

That is, light incident to be inclined to the first area and the second area has different reflectances.

Accordingly, the case according to the embodiment can express the contrast. In particular, a plurality of regions including the first region and the second region may be formed on the plate to have a gradually high reflectance.

Accordingly, the case according to the embodiment may implement a gradation effect that is gradually lightened or darkened depending on the position.

Therefore, the case according to the embodiment may implement a luxurious appearance by using the contrast and gradation effects.

In addition, the first patterns and the second patterns may be formed using an etching mask.

Therefore, the manufacturing method of the case according to the embodiment may be manufactured so that the deviation between the products is small.

In the description of the embodiments, each plate, film, member, mask or layer or the like is described as being formed "on" or "under" of each plate, member, film, mask or layer or the like. In the case, “on” and “under” include both being formed “directly” or “indirectly” through other components. In addition, the upper or lower reference of each component is described with reference to the drawings. The size of each component in the drawings may be exaggerated for the sake of explanation and does not mean the size actually applied.

1 is a front view illustrating a door of a refrigerator according to an embodiment. 2 is a plan view showing a part of an image. 3 is a cross-sectional view showing a cross section taken along A-A 'in FIG. 4 is a cross-sectional view illustrating a cross section taken along line BB ′ in FIG. 2. 5 is a cross-sectional view illustrating a cross section taken along line CC ′ in FIG. 2.

Referring to FIG. 1, the refrigerator includes a main body in which a refrigerating chamber and a freezing chamber are formed, and a door 10 rotatably coupled to the front of the main body.

The door 10 includes an out case 10a that provides a front appearance of the door 10 and a door liner (not shown) which forms a rear appearance of the door 10. In addition, the door 10 includes a heat insulating material disposed between the out case 10a and the door liner.

In addition, the door 10 is divided into a refrigerating compartment door 11 selectively shielding the refrigerating compartment and a freezing compartment door 12 selectively shielding the freezing compartment.

In addition, the freezer compartment door 12 is provided on one side of the display unit 41 and the display unit 41 displaying the operation state of the refrigerator, and includes an operation unit 42 for manipulating the operation of the refrigerator.

The refrigerating compartment door 11 and the freezing compartment door 12 include a door handle 21 that allows a user to grasp and open and close the door 10 of the refrigerator.

In addition, the door 10 is formed with an image 15 to provide a colorful appearance. Hereinafter, the configuration and formation method of the image 15 will be described.

2 to 5, the out case 10a includes a plate 100, a protection member 300, and an adhesive member 200.

The plate 100 may be a metal substrate or a substrate on which a metal layer is deposited on a patterned resin. In addition, examples of the metal material used may include stainless steel, aluminum, copper, nickel and titanium.

The protective member 300 is disposed on the plate 100 to protect the plate 100. The protective member 300 is transparent, and a material that may be used as the protective member 300 may include glass.

The adhesive member 200 is interposed between the plate 100 and the protection member 300. The adhesive member 200 is transparent and adheres the protective member 300 to the plate 100.

In addition, the out case 10a includes a plurality of areas for implementing the image 15. Each of the regions includes patterns extending in different directions.

Referring to FIG. 2, for example, the out case 10a may include a first region 101, a second region 102, and a third region 103.

The first region 101 is defined by a plurality of first patterns 110 extending in a first direction. In this case, the first patterns 110 are groove patterns formed in the plate 100.

The first patterns 110 have a width W1 of about 10 to 120 μm, a pitch P1 of about 50 to 200 μm, and a depth D1 of about 10 to 100 μm.

The second region 102 is defined by a plurality of second patterns 120 extending in a second direction. In this case, the second patterns 120 are groove patterns formed on the plate 100.

The second patterns 120 have a width W2 of about 10 to 120 μm, a pitch P2 of about 50 to 200 μm, and a depth D2 of about 10 to 100 μm.

The third region 103 is defined by a plurality of third patterns 130 extending in a third direction. In this case, the third patterns 130 are groove patterns formed on the plate 100.

The third patterns 130 have a width W3 of about 10 to 120 μm, a pitch P3 of about 50 to 200 μm, and a depth D3 of about 10 to 100 μm.

In this case, the first to third patterns 110, 120, and 130 may have the same width, the same pitch, and the same depth.

Since the extending directions of the first to third patterns 110, 120, and 130 are different from each other, the first region 101, the second region 102, and the third region 103 have different reflectances. Has

In more detail, the first region 101, the second region 102, and the third region 103 have different reflectances with respect to light incident obliquely to the plate 100.

The amount of light reflected by the first to third patterns 110, 120, and 130 varies according to which direction the light incident to the plate 100 is inclined to the plate 100 proceeds in a plan view.

That is, light traveling in the first direction when viewed in a plane is incident on the first to third patterns 130 in the same manner. In this case, the first patterns 110 reflect relatively little light, the second patterns 120 reflect relatively light, and the third patterns 130 reflect the most light. Can be reflected.

Therefore, when the first region 101, the second region 102 and the third region 103 are viewed obliquely, the first region 101 is darkest, and the second region 102 is Moderately bright, the third region 103 can be observed to be the brightest.

In addition, the out case 10a may include a fourth region defined by fourth patterns extending in the fourth direction and a fifth region defined by fifth patterns extending in the fifth direction. .

In addition, each of the widths, pitches, and depths of the first to third patterns 110, 120, and 130 may be adjusted, such that the first region 101, the second region 102, and the third region ( The reflectance of 103 can be adjusted.

The protection member 300 covers the first to third patterns 110, 120, and 130. In addition, the protection member 300 protects the first to third patterns 110, 120, and 130.

The protective member 300 and the adhesive member 200 are transparent and have different refractive indices. Therefore, the light incident on the out case 10a is reflected by the protective member 300 and the adhesive member 200 with a path difference.

Therefore, the first to third patterns 110, 120, and 130 are expressed to have a three-dimensional effect.

In addition, due to the path difference, the boundary portions of the first to third regions 103 are blurred. That is, the image 15 is implemented with a blur effect by the protective member 300 and the adhesive member 200.

Therefore, the first to third patterns 110, 120, and 130 are not separated by boundaries, and the protective member 300 and the adhesive member 200 may more naturally implement the image 15. .

In addition, an air layer 210 exists between the adhesive member 200 and the first to third patterns 110, 120, and 130.

Therefore, the air layer 210 can maximize the scattering effect on incident light due to the surface irregularities formed on the inner surface of the first to third patterns 130, and improves the three-dimensional appearance.

The out case 10a gradually includes regions having different reflectances. Therefore, the out case 10a may implement a gradation effect that is gradually brightened or gradually darkened.

In addition, the boundary between the regions is blurred by the protective member 300 and the adhesive member 200, and the out case 10a can implement the gradation effect more efficiently.

The refrigerator according to the embodiment has a luxurious appearance by the gradation effect.

6A to 6C are cross-sectional views illustrating a manufacturing method of manufacturing an out case according to an embodiment.

Referring to FIG. 6A, a mask 400 is disposed on the plate 100. The mask 400 has a plurality of through holes 401 formed therein.

The mask 400 may be a photoresist pattern formed by applying and patterning a photoresist.

The through holes 401 may include first through holes for defining a first area, second through holes for defining a second area, and third through holes for defining a third area.

Referring to FIG. 6B, an etching solution is sprayed onto the plate 100 using the mask 400. Accordingly, groove patterns 100a are formed in the plate 100 corresponding to the through holes 401.

The groove patterns 100a may include first patterns corresponding to the first through hole, second patterns corresponding to the second through hole, and third patterns corresponding to the third through hole.

That is, the first patterns extend in a first direction, and the second patterns extend in a second direction. The third patterns extend in a third direction.

In addition, the width and depth of the groove patterns 100a are determined by the width of the through holes 401.

That is, the greater the width of the through holes 401, the more etching solution is injected into the plate 100, and the greater the width and depth of the groove patterns 100a.

In addition, fine recesses and protrusions are formed inside the groove patterns 100a by the etching solution.

Therefore, by the etching solution, diffuse reflection characteristics of the groove patterns 100a may be improved, and contrast and gradation effects of the groove patterns 100a may be improved.

Referring to FIG. 6C, an adhesive member 200 is adhered on the plate 100, and a protective member 300 is disposed on the adhesive member 200, and adhered to the adhesive member 200. Examples of the material used as the adhesive member 200 include acrylic resins or polyester resins.

As a result, an out case 10a including regions defined by patterns extending in different directions is formed.

Although described above with reference to the embodiment is only an example and is not intended to limit the invention, those of ordinary skill in the art to which the present invention does not exemplify the above within the scope not departing from the essential characteristics of this embodiment It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

Experimental Example

7 is a perspective view showing the incidence direction of the stainless steel plate and the light according to the experimental example. 8A to 10B show the results according to the experimental example.

Using stainless steel plates, a plate # 1 was formed having an area # 1 in which groove patterns # 1 were formed having a width of about 25 μm, a pitch of about 120 μm, and a depth of about 55 μm. Similarly, plate # 2 was formed, with region # 2 having groove patterns # 2 having a width of about 10 μm, a pitch of about 50 μm, and a depth of about 55 μm. A plate # 3 was formed having an area # 3 in which groove patterns # 3 having a pitch and a depth of about 55 mu m were formed.

As shown in FIG. 7, the light L1 was irradiated to the plates # 1, 2, and 3 at an incident angle of 45 ° (A) in a direction perpendicular to the direction in which the groove patterns # 1, 2 and 3 were formed. At this time, the intensity of the light reflected upward is shown in Figs. 8A, 9A and 10A, respectively. In addition, as shown in FIG. 7, light L2 was irradiated at an incident angle of 45 ° (A) in the direction in which the groove patterns # 1, 2, and 3 were formed. At this time, the intensity of the light reflected upward is shown in Figs. 8B, 9B and 10B, respectively.

Referring to FIGS. 8A to 10B, it can be seen that the reflectance deviation of the region # 1 formed on the plate # 1 is largest according to the incident direction. That is, the area # 1 in which the groove pattern # 1 having the width of about 25 μm, the pitch of about 120 μm, and the depth of about 55 μm is formed varies significantly depending on the visible position.

1 is a front view illustrating a door of a refrigerator according to an embodiment.

2 is a plan view showing a portion of an image.

3 is a cross-sectional view showing a cross section taken along A-A 'in FIG.

4 is a cross-sectional view illustrating a cross section taken along line BB ′ in FIG. 2.

5 is a cross-sectional view illustrating a cross section taken along line CC ′ in FIG. 2.

6A to 6C are cross-sectional views illustrating a manufacturing method of manufacturing an out case according to an embodiment.

7 is a perspective view showing the incidence direction of the stainless steel plate and the light according to the experimental example.

8A to 10B show the results according to the experimental example.

Claims (12)

A plurality of first patterns defining a first area and extending in a first direction; And A case defining a second region, the case comprising a plate comprising a plurality of second patterns extending in a second direction. The case of claim 1, wherein the first patterns and the second patterns are groove patterns. The case of claim 2, wherein the first patterns and the second patterns have a width of 10 to 120 μm, a pitch of 50 to 200 μm, and a depth of 10 to 100 μm. The case of claim 2, further comprising a protective member covering the first pattern and the second pattern. The case of claim 4, further comprising an adhesive member interposed between the protective member and the plate. The case of claim 5, further comprising a low refractive index layer interposed between the adhesive member and the first pattern and the second pattern and having a lower refractive index than the adhesive member. The case of claim 6, wherein the low refractive index layer is an air layer. The case of claim 1, wherein the plate comprises a metal. The case of claim 1, wherein the first pattern and the second pattern have different widths. Placing a mask on the plate; And Using the mask, the plate is etched to define a first area on the plate and to extend in a second direction defining a second area on the plate and a plurality of first patterns extending in a first direction. Forming a plurality of second patterns. The method of claim 10, wherein in the forming of the first patterns and the second patterns, Wherein the first patterns and the second patterns have a width of 10 to 120 μm, a pitch of 50 to 200 μm and a depth of 10 to 100 μm. The method of claim 10, wherein in disposing the mask: And the plate comprises a stainless steel.

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