KR101155493B1 - Sheet and electronic device comprising the same - Google Patents

Abstract

The present invention relates to a sheet and an electronic device including the same. The sheet according to the present invention may include a base film, a pattern layer formed on one surface of the base film, and a metal layer formed on the pattern layer. As a result, the reflection and scattering effects of the light incident on the sheet may be increased, thereby greatly improving the decorative effect, and the sheet may be produced in a large area, thereby reducing the production cost.

Sheet, permeable

Description

Sheet and electronic device comprising the same

The present invention relates to a sheet and an electronic device including the same. More particularly, the present invention relates to a sheet formed of a metal layer with a predetermined thickness on a patterned pattern layer and an electronic device including the same.

Sheets that can be easily attached to objects such as home appliances are used to harmonize with the surrounding environment and bring about aesthetics to the user. In particular, in recent years, aesthetic elements as well as the specifications and performance of home appliances have become an important judgment criteria when purchasing, and the aesthetic improvement of the product is becoming important.

Conventionally, an image for improving aesthetics has been printed using a silk screen method to produce a sheet. However, since the image printed by the silk screen method does not use the characteristics of the member forming the printed surface, it cannot emphasize the texture of the member itself, and there is a limitation that the three-dimensional feeling is inferior.

Another conventional technique is a photo etching process in which an image is formed by irradiating light using a photomask and etching a metal. Photo etching can maximize the metal texture to enhance the aesthetics.

However, since the photo etching process forms an image by directly etching the metal, there is a limit to producing a sheet having a large area, and stainless steel generally used in the photo etching process is excellent in corrosion resistance, durability and light reflectivity. Since the price is high, the amount of metal wasted by etching is uneconomical.

An object of the present invention, by forming a metal layer on a patterned pattern layer to a certain thickness, to increase the reflection and scattering effect of the incident light, to provide a large-area sheet and a home appliance including the same.

Sheet of the present invention for solving the above object, the base film, a pattern layer formed on one surface of the base film and a metal layer formed on the pattern layer, the metal layer may be a part of the incident light is transmitted.

In addition, the metal layer may be formed by plating or vacuum deposition, the thickness of the metal layer may be formed to 20 to 90nm.

In addition, the base film may further include a reflective layer formed on the other surface.

In addition, the pattern layer is a pattern is formed to scatter or reflect the light incident on the sheet, the pattern may include a first pattern extending in at least a first direction and a second pattern extending in a second direction different from the first direction. Can be.

In addition, the electronic device of the present invention for solving the above object includes an electronic device and a sheet located on one surface of the electronic device, the sheet is formed on the base film, the pattern layer and the pattern layer formed on one surface of the base film And a metal layer through which a part of the light incident on the sheet is transmitted.

Sheet according to the present invention, by forming a metal layer with a predetermined thickness on the patterned pattern layer, the reflection and scattering of the incident light is increased to significantly improve the decorative effect, the sheet can be processed to a large area production You can save money.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1A is a perspective view of a sheet according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along the line a-a 'of FIG. 1A.

1A and 1B, the sheet 100 of the present invention may include a base film 110, a pattern layer 120 formed on one surface of the base film 110, and a metal layer 140 formed on the pattern layer 120. It may include.

The base film 110 is a support for forming the pattern layer 120 and is transparent to allow light to pass therethrough, and has excellent mechanical properties such as polyethylene, polypropylene, polycarbonate, and polyester ( Polyester), polyethylene terephthalate, and at least one of acrylic.

The pattern layer 120 is formed on one surface of the base film 110. The pattern layer 120 may be formed by applying heat or ultraviolet curable resin on the base film 110. Since the pattern layer 120 should also have a transparent property, the resin used to form the pattern layer 120 may not only use the same material as the base film 110 but also may use any other known resin. It is okay.

Sheet 100 according to the present invention is intended to improve the decorative effect by reflecting or / and scattering light (not shown) incident from the top of the sheet 100, the light incident on the pattern layer 120 The fine pattern 130 that can scatter or refract is formed.

The pattern 130 is first coated with a resin for forming the pattern layer 120 on the base film 110, and then a resin layer applied using a mold in which the pattern of the pattern 130 to be formed is reversed. The pattern 130 may be transferred to the resin, and the resin on which the pattern 130 is formed may be cured by heat or ultraviolet rays. Therefore, the pattern 130 may be formed more easily.

Meanwhile, the pattern 130 may include a two-dimensional pattern including any one of straight lines, curves, circles, triangles, and polygons repeatedly formed.

In addition, the pattern 130 may include a first pattern 132 extending in at least a first direction and a second pattern 134 extending in a second direction different from the first direction. Referring to FIG. 1A, the first pattern 132 and the second pattern 134 may represent a surface of an image by a comb pattern in which straight lines are repeatedly formed in different directions. As the first pattern 132 and the second pattern 134 extend in different directions as described above, the light path, the reflection angle, the amount of reflection, and the like are changed, thereby realizing an image to be expressed in three dimensions.

In addition, the first pattern 132 and the second pattern 134 may be formed to extend in different directions with respect to the third pattern 136. In this case, the third pattern 136 may form an outline of the image, and the third pattern 136 may be formed deeper than the first pattern 132 and the second pattern 134.

The metal layer 140 is formed on the pattern layer 120. The metal layer 140 formed on the sheet 100 according to the present invention reflects light (not shown) incident from the top of the sheet 100 to have a decorative effect.

The metal layer 140 may be formed on the pattern layer 230 by vacuum deposition or plating. In the vacuum deposition method, the metal is vaporized in a high vacuum state, and the metal layer 140 is deposited on the pattern layer 130 in the form of a film. In the method of making the metal vapor, heat or electron beam is applied to the metal. Melting, evaporating, sputtering to physically remove atoms from the surface of the metal, and irradiating and irradiating a laser beam, and the like, the plating method using an electroplating using a current and a metal layer without applying a current ( 140) to the electroless plating method.

As such, when the metal layer 140 is formed by using a vacuum deposition method, compared to the case of applying the conventional photo etching technology, since there is no metal wasted by etching, it is possible to reduce the production cost. In addition, when the plating method is used, the sheet 100 having a large area can be easily formed.

The metal for forming the metal layer 140 may be at least one of nickel, copper, silver, aluminum, gold, chromium, and alloys thereof, or any known metal may be used.

However, as described below, at least a part of the incident light may be transmitted to be formed to have a constant thickness to maximize the decorative effect. That is, the metal layer 140 not only reflects light (not shown) incident on the sheet 100, but also transmits a portion of the metal layer 140 by the surface of the electronic device to which the reflective layer 250 or the sheet 100 is attached. By allowing the reflected light to be secondarily reflected, the decorative effect of the sheet 100 can be improved.

Figure 2a is a perspective view of a sheet according to an embodiment of the present invention, Figure 2b is a cross-sectional view taken along the line b-b 'of Figure 2a, Figure 3 is a partially enlarged view of the cross-sectional view of Figure 2b.

First, referring to FIGS. 2A and 2B, the sheet 200 of the present invention may include a base film 210, a pattern layer 220 formed on one surface of the base film 210, and a metal layer formed on the pattern layer 220. 240 and the reflective layer 250 formed on the other surface of the base film 210.

The base film 210 and the pattern layer 220 have a transparent property, and the pattern 230 formed on the pattern layer 220 directly forms the pattern 230 on the metal layer 240 by applying a conventional photo etching technique. Rather, since the pattern 230 is formed on the pattern layer 220 formed of the resin, the pattern 230 may be more easily formed.

The pattern 230 may be expressed up to a delicate line of approximately 0.02 mm to 0.03 mm, and may include any one of a straight line, a curve, a circle, a triangle, and a polygon to form a pattern 230 such as a comb pattern, a lozenge, and the like.

Since the metal layer 240 is formed on the pattern layer 220 by vacuum deposition or plating, it is easy to form the sheet 200 having a large area, and by etching compared to the case of applying a conventional photo etching technique. Since no metal is wasted, production costs can be reduced.

In addition, by forming the metal layer 240 on the pattern layer 220 on which the pattern 230 is formed, it is possible to maximize the metal texture, and has a high gloss characteristic of the metal to have a more elegant appearance of the product.

On the other hand, the metal layer 240 reflects the light incident on the sheet 200 to have a decorative effect of the sheet 200, in particular, according to the present invention, at least a portion of the light incident on the metal layer 240 is a metal layer 240 It is formed to have a constant thickness so as to pass through.

The light transmitted through the metal layer 240 is reflected by the reflective layer 250 and directed back to the outside of the sheet 200, thereby maximizing the decorative effect of the sheet 200. In this case, when the reflective layer 250 has a constant color, the color of the reflected light may be changed, thereby further maximizing the decorative effect.

Referring to FIG. 3, a part 261 of the light 260 incident to the sheet 200 is scattered with reflection at the surface of the metal layer 240 and is directed back to the outside, and the other part 262 faces the metal layer 240. The light is transmitted through the sheet 200.

As such, in order for at least a part of the light 260 incident to the sheet 200 to pass through the metal layer 240, the thickness T of the metal layer 240 must be formed so that the metal layer 240 has a constant light transmittance. .

Table 1 below shows a relationship between the thickness T of the metal layer 240, the light transmittance, and the presence or absence of gloss of the metal layer 240. The metal layer 140 was formed by using nickel (Ni) and sputtering method.

Thickness of the metal layer (nm) % Light transmittance of metal layer Glossiness of metal layer 95 Less than 0.01 ◎ 90 0.03 ◎ 80 0.03 ◎ 70 0.05 ◎ 60 0.09 ○ 50 0.14 ○ 40 0.32 ○ 30 0.58 ○ 20 0.92 ○ 10 1.34 △

Referring to Table 1, when the thickness T of the metal layer 240 is less than 20 nm, the light transmittance of the metal layer increases to 1.34% or more, but the reflection of the light 260 on the surface of the metal layer 240 decreases, thereby reducing the specificity of the metal. It becomes difficult to get high gloss.

On the other hand, when the thickness T of the metal layer 240 is thicker than 90 nm, the metal has a high gloss characteristic of metal, but the transmittance is lowered so that the reflection in the reflective layer 260 is hardly achieved to achieve an intended decorative effect. It becomes difficult, the thickness (T) of the metal layer 240 has a disadvantage that the manufacturing cost is improved.

Therefore, the formed metal layer 140 preferably has a light transmittance of 0.03 to 0.92% in order to maximize the decorative effect, the thickness (T) of the metal layer 140 for this may be 20 to 90nm.

As described above, the sheet 200 according to the present invention not only reflects part of the incident light on the surface of the metal layer 240, but also partially passes through the metal layer 240 and is reflected by the reflecting layer 250, thereby preventing the outside of the sheet 200. Since it is directed back, the scattering effect of the light 260 becomes larger than in the conventional case in which only the metal layer 250 reflects the light, thereby improving the decorative effect of the sheet 200.

On the other hand, when the reflective layer 250 has a certain color, it is possible to change the color of the reflected light 262, thereby further maximizing the decorative effect. In addition, the reflective layer 250 may not only have the same color as a whole, but may have a different color for each part. In this case, the color of the reflected light 262 may vary.

In the above, in the case of the sheet 200 including the reflective layer 250 as a component, the reflection of light from the reflective layer 250 has been described, but the electrons omitting the reflective layer 250 and performing the same role as the reflective layer 250 are described. Of course, the sheet 100 of FIGS. 1A and 1B can be attached to the surface of the device and used.

In this case, it is preferable that the surface of the electronic device to which the sheet 100 is attached has a certain color to reflect the light and is not transparent. As such, the slimer sheet 100 may be manufactured by omitting the reflective layer 250.

4 and 5 are exploded perspective views showing a sheet according to an embodiment of the present invention.

FIG. 4 includes the sheet 100 of FIGS. 1A and 1B, and FIG. 5 includes the sheet 200 of FIGS. 2A to 3, wherein the same portions as those shown and described with reference to FIGS. 1A to 3 are included. The description will be omitted.

Referring to FIG. 4, the sheet 400 according to the present invention may further include a transparent member 460 on a metal layer (not shown).

Since the metal layer (not shown) is formed on the pattern portion 420 in which the pattern 430 is finely formed, the pattern 430 may be crushed or the metal layer (not shown) may be peeled off due to external friction. In order to prevent the sheet 400 according to the present invention may include a transparent member 460.

The transparent member 460 may be bonded to a metal layer (not shown) by an adhesive member (not shown), and an example of the transparent member 460 may include tempered glass.

As such, the transparent member 460 made of tempered glass or the like is bonded to the metal layer (not shown) by an adhesive member to protect the pattern 430 and the metal layer (not shown) by external factors, and the formed image is projected to the outside. To play a role.

In addition, the bottom surface of the base film 410 may further include an adhesive layer 470 for facilitating adhesion to the electronic device to which the sheet 400 is to be attached. The sheet 400 may be easily attached to the electronic device to be decorated by the adhesive layer 470.

On the other hand, a part of the light incident on the sheet 400 attached to the electronic device is reflected from the surface of the metal layer (not shown) and part of the light is transmitted from the surface of the electronic device through the metal layer (not shown) to reflect the outside of the sheet 400 You are headed back to. Therefore, the light scattering effect is increased and the decorative effect of the sheet 400 can be improved.

In order to transmit a part of the incident light as described above, the metal layer (not shown) preferably has a light transmittance of 0.03 to 0.92%, and the thickness T of the metal layer (not shown) for this may be 20 to 90 nm.

On the other hand, as shown in FIG. 5, when the reflective layer 550 is present, the adhesive layer 570 may be located on the bottom surface of the reflective layer 550. When the adhesive layer 570 is formed on the bottom surface of the reflective layer 550 in this manner, even when the surface of the electronic device does not reflect light, the decorative effect of the sheet 500 by the reflective layer 550 can be improved. The sheet 500 may be more easily attached to the electronic device to be attached.

6 is a front view of an electronic device with a sheet according to an embodiment of the present invention.

As long as the electronic device is intended to be decorated by the sheet, the type of the electronic device may be used. However, when the reflective layer of the sheet is omitted as described in FIG. 4, the surface of the electronic device may perform the role of the reflective layer instead. Such electronic devices may include all electronic devices such as a washing machine, a refrigerator, and an air conditioner.

6 illustrates a washing machine 600 as an example of an electronic device, and the present invention is not limited thereto.

Referring to FIG. 6, the washing machine 600 includes a main body (not shown) including a laundry room in which laundry is washed, and an upper part of the main body to control overall operation of the washing machine 600 and input an operation command from a user. Receiving control unit 610, the door 620 for opening and closing the front of the laundry room, and the storage unit 630 is provided in the lower portion of the main body to be stored, dried, deodorized or sterilized, such as shoes.

The control unit 610 is provided with a display unit 614 for displaying information on the overall operation of the washing machine 600. The display unit 614 may be implemented as an LCD or an LED, and an operation step such as washing, rinsing, or drying, and a setting time or remaining time for each step are displayed. In addition, the control unit 610 may further include a user operation button 613 that receives an operation command from the user, and the user operation button 613 may be implemented as a rotary switch.

A sheet 640 forming a certain image may be attached to an outer surface of a component forming an exterior of a home appliance, called a main body, a case, or a cabinet, to induce aesthetics to the user.

The sheet 640 according to the present invention may include a base film, a pattern layer formed on one surface of the base film, a metal layer formed on the pattern layer, and further include an adhesive layer formed on the other surface of the base film.

The pattern layer made of polyethylene terephthalate or the like and formed on a transparent base film is formed by applying a heat or ultraviolet curable resin onto the base film, and then using a mold having a pattern of 624 reversed. The 624 may be transferred to the pattern layer, and the resin on which the pattern 624 is formed may be formed by curing with heat or ultraviolet rays.

The metal layer is formed on the pattern layer by plating or vacuum deposition. By forming the metal layer on the pattern layer on which the pattern 624 is formed to have a predetermined thickness, the shape of the pattern 624 can be exposed as it is and the metal texture can be maximized. have. The metal layer also has the effect of scattering and reflecting the incident light to give a high gloss characteristic of the metal to make the product appearance more luxurious.

As described above, the sheet 640 according to the present invention forms a pattern 624 of an image to be formed on a resin applied by using a mold, thereby forming a pattern 624 directly on a metal by applying a conventional photo etching technique. The pattern can be formed more easily than in the case.

In addition, since the metal layer is formed using a vacuum deposition or plating method, it is easy to form the sheet 640 having a large area, and there is no metal wasted by etching as compared with the case of applying the conventional photo etching technology. The cost can be reduced.

The pattern 624 may include at least a first pattern 621 extending in a first direction and a second pattern 622 extending in a second direction different from the first direction. As the first pattern 621 and the second pattern 622 extend in different directions, the light path, the reflection angle, the amount of reflection, and the like are changed, thereby realizing an image to be expressed in three dimensions.

In addition, the first pattern 621 and the second pattern 622 may be formed to extend in different directions with respect to the third pattern 623. In this case, the third pattern 623 may form an outline of the image, and the third pattern 623 may be formed deeper than the first pattern 621 and the second pattern 622.

The sheet 640 may be easily attached to the washing machine 600 by an adhesive layer, and the metal layer included in the sheet 640 may have a thickness of 20 to 90 nm to have a light transmittance of 0.03 to 0.92%. Therefore, a part of the light incident on the sheet 640 is transmitted to the surface of the washing machine 600, is reflected by the surface of the washing machine 600, and is emitted to the outside.

Therefore, since the light scattering effect is larger than in the conventional case in which only the surface of the metal layer is reflected, the decorative effect of the sheet 640 can be maximized.

In FIG. 6, the example in which the sheet 400 of FIG. 4 is attached is illustrated and described. However, the sheet 500 illustrated in FIG. 5 may also be attached.

While the above has been shown and described with respect to preferred embodiments of the invention, the invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

1A is a perspective view of a sheet according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along the line a-a 'of FIG. 1A.

2A is a perspective view of a sheet according to an embodiment of the present invention, and FIG. 2B is a cross-sectional view taken along the line b-b 'of the sheet of FIG. 2A.

3 is a partially enlarged view of the cross-sectional view of FIG. 2B.

4 and 5 are exploded perspective views showing a sheet according to an embodiment of the present invention.

6 is a front view of an electronic device with a sheet according to an embodiment of the present invention.

Claims (24)

Base film; A pattern layer formed on one surface of the base film; A metal layer formed on the pattern layer; And It includes a reflective layer formed on the other surface of the base film, At least one of the base film and the pattern layer is a transparent material, The metal layer transmits or reflects a portion of light, has a constant thickness, the thickness is 20 to 90 nm, and the light transmittance of the metal layer is 0.03 to 0.92%. delete delete delete delete The method of claim 1, The metal layer is a sheet formed by plating or vacuum deposition. The method of claim 1, The metal layer is at least one of nickel, copper, silver, aluminum, gold, chromium and alloys thereof. The method of claim 1, The pattern layer has a pattern formed to scatter or reflect light incident on the sheet, wherein the pattern includes at least a first pattern extending in a first direction and a second pattern extending in a second direction different from the first direction. Containing sheet. The method of claim 8, The first pattern and the second pattern is a sheet extending in different directions with respect to the third pattern. The method of claim 1, The pattern layer is a sheet formed by curing the resin (Resin). The method of claim 1, A sheet comprising an adhesive member positioned on the metal layer and a transparent member adhered to the metal layer by the adhesive member. The method of claim 11, The transparent member is a sheet of tempered glass. The method of claim 1, The reflective layer is a sheet having a constant color. The method of claim 1, Sheet comprising an adhesive layer located on the other surface of the base film. The method of claim 1, Sheet comprising an adhesive layer located on the other surface of the reflective layer. Electronics; And It includes a sheet located on one surface of the electronic device, The sheet, Base film; A pattern layer formed on one surface of the base film; A metal layer formed on the pattern layer and transmitting or reflecting a part of light incident on the sheet; An adhesive layer formed on the other surface of the base film; And It includes a reflective layer formed between the base film and the adhesive layer, The metal layer has a constant thickness, the thickness is 20 to 90nm, the light transmittance of the metal layer is 0.03 to 0.92% electronic device. delete delete delete delete The method of claim 16, And an adhesive member positioned on the metal layer and a transparent member adhered to the metal layer by the adhesive member. The method of claim 16, The pattern layer is an electronic device formed by curing the resin (Resin). The method of claim 16, The pattern layer has a pattern formed to scatter or reflect light incident on the sheet, wherein the pattern includes at least a first pattern extending in a first direction and a second pattern extending in a second direction different from the first direction. Included electronics. 24. The method of claim 23, The first pattern and the second pattern extends in different directions with respect to the third pattern.

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