KR100798626B1 - Decoration plate comprising decorated 3-d layer - Google Patents

Abstract

A decoration substrate having a decorated 3-D layer is provided to implement diverse and elaborate decorations, to offer excellent scratch-resistant and abrasion-resistant properties, and to show a good 3-D aesthetic feeling. A decoration substrate for a wireless terminal is comprised of a base material(10), a hardened 3-D decoration layer(20), and a secondary decoration layer(12). A primary decoration layer(11) is formed on either of the upper side and lower side of the base material(10). At a portion of the upper part of the base material(10), the hardened 3-D decoration layer(20) is protruded and formed in three dimensions. The secondary decoration layer(12) is formed between the whole or a portion of the hardened 3-D decoration layer(20) and the base material(10).

Description

Decoration plate Comprising Decorated 3-D layer}

1 is a perspective view of a general wireless terminal,

2a and 2b, 3a and 3b is a cross-sectional view of a decoration board for a wireless terminal according to an embodiment of the present invention,

4 and 5 are enlarged cross-sectional view of a decoration board for a wireless terminal according to an embodiment of the present invention,

6 is a perspective view of a wireless terminal window according to an embodiment of the present invention;

Figure 7 is a perspective view of a wireless terminal window integrated keypad according to an embodiment of the present invention.

** Description of the main symbols in the drawings **

1: decoration board

2: wireless terminal window

3: wireless terminal window integrated keypad

10: description

11: 1st decoration layer

12: 2nd decoration layer

13: hard coating layer

20: three-dimensional decorative layer

The present invention relates to a decoration substrate for a wireless terminal.

1 is a perspective view showing a general wireless terminal.

As shown in FIG. 1, a wireless terminal such as a cellular phone has a liquid crystal display 120 displaying various information required for operation such as a transmission and reception state, and a plurality of keys of a keypad for performing signal generation and various functions. It is composed of a key panel 110 having a hole in which the buttons 130 are fitted.

The keypad has a plurality of key buttons 130 having a printed surface on which numbers or letters are printed, and the key buttons 130 have a structure protruding outside the key panel 110 of the mobile phone. The user checks the number or letter displayed on the printing surface and presses the desired key button 130 to use the mobile phone. A light source made of a light emitting element is provided on the outside of the bottom of the key button 130 so that the printing surface can be checked even at night. When the light is irradiated from the light source, the user can easily recognize the numbers or letters printed on the key button 130 by the backlighting effect.

For the aesthetics of the external appearance of the terminal, when implementing the (decoration) shape protruding on the upper part of the terminal exterior parts, the appearance aesthetics of the terminal can be significantly improved, especially when the protruding (decoration) shape has an additional collar, If the high quality mirror (mirror effect) has a color due to excellent deposition, the design aesthetics can be maximized. In order to realize such a three-dimensional decoration, (1) a method of forming a core for embossing the molding die itself and forming a protrusion for injection molding, and (2) a sheet or film type synthetic resin. Partial punching on the board, CNC, Press processing, (3) Metal boards are made of holes and gaps through machining and corrosion processing such as punching, and silicone and urethane moldings or other parts separate from the board. Insertion projection method for assembling other protruding parts by inserting them into holes or gaps from the lower part of the board. (4) Producing a flat plate type, and injecting or exposing parts having a different shape from them. It is possible to consider the method of bonding by bonding on the board and assembling or inserting the double-sided tape.

However, in the above-described manner, (1) the material of the part is made of synthetic resin capable of injection molding, punching and NC processing, or corrosion-processing metal material STS, Al, Cu, etc. Material restrictions are large, and (2) in the case of the injection method, since flat portions and protruding portions are integrally injected, it is difficult to separately decorate only the protruding shape portions, and at this time, there is a limit of the thickness of the flat portion that can be injected, In the case of a thin thickness of less than 0.4T injection molding itself has a very difficult disadvantage. In addition, there is a problem that it is difficult to slim down, and (3) injection molded parts are not given scratch resistance, and thus undergo a spray process such as UV or urethane to impart scratch resistance to the surface after injection. However, this spraying process can cause substantial damage to the decorative parts such as distorting the edges of the protruding decorative parts, clogging the grooves, blurring the interface between the base and the protruding parts, and providing scratch resistance to the surface of the injection molding. (4) In the case of the method through corrosion, since it is difficult to implement a fine protrusion shape on the metal substrate itself by molding, it must be implemented by assembling with a part having a separate protrusion shape. In this case, there are many drawbacks due to additional parts and processes, and parts having an assembled protrusion shape are usually molded products such as silicone, and there are many disadvantages in restricting various decorations desired for the protrusion shape portion itself. There are many limitations on the thickness by assembling There are many limitations in terms of design, and there are limitations in design. (5) In the case of attaching a part having a separate protrusion shape to a flat substrate of synthetic resin and metal, the process of attaching minute protrusions to the substrate itself is a process and cost-effectiveness. , The smaller and more precise the parts, the more difficult the joining operation is, and in some cases impossible. In the case of bonding or inserting separate protrusions, each decoration is applied to the basic board and the separate part. It is very cumbersome to do, especially in color matching because color deposition requires that all individual parts corresponding to each protrusion are colored separately and all parts assembled into one finished product must be matched with the same or desired similar color. There are more and more difficult problems, and the type of each part There are many limitations of the decoration due to the difficulty of the machining and post-processing process (especially the front decoration itself in the manufacturing process of each part), and the effect (back decoration is less effective than the front decoration) is very low. It is almost impossible to implement a special decoration of the protruding shape that lacks the sense of unity due to the assembly and excellent design aesthetics of the front (top) or the outer surface.

The present invention is to solve the above problems,

It is possible to decorate variously and finely without being restricted by the type of material, and has excellent scratch resistance and abrasion resistance by a simple method, and has a protruding (decoration) shape with excellent three-dimensional aesthetics of various colors. An object of the present invention is to provide a decoration substrate, a window of a wireless terminal using the same, and a window-integrated keypad.

The present invention for achieving the above object,

A substrate on which a primary decoration layer is formed on at least one of an upper side and a lower side; A curable stereoscopic decoration layer formed to protrude three-dimensionally on an upper portion of the substrate; It provides a decoration substrate for a wireless terminal comprising a; and a secondary decoration layer formed between all or a portion of the curable stereoscopic decorative layer and the substrate.

In addition, the curable stereoscopic decorative layer provides a decoration substrate for a wireless terminal, characterized in that formed by curing the photocurable and thermosetting or two types of hard coating liquid.

In addition, the substrate provides a decoration board for a wireless terminal, characterized in that the transparent polymer sheet.

In addition, the substrate provides a decoration board for a wireless terminal, characterized in that the transparent glass or tempered glass.

In addition, the substrate provides a decoration board for a wireless terminal, characterized in that the opaque metal material.

In addition, the substrate decorated with the first decoration layer provides a decoration board for a wireless terminal, characterized in that the hard coating on at least one of the upper surface, the lower surface, the upper surface of the primary decoration layer, and the lower surface.

In addition, the curable stereoscopic decorative layer provides a decoration substrate for a wireless terminal, characterized in that the color is included to represent the color.

In addition, the curable stereoscopic decorative layer provides a decoration board for a wireless terminal, characterized in that it contains an additive for expressing the texture of Matte (matte) or Anti-glare (anti-glare).

In addition, the decoration layer provides a decoration substrate for a wireless terminal, characterized in that formed by deposition or printing or a combination thereof.

The present invention also provides a wireless terminal window having the decoration substrate, wherein a transparent window portion is formed on a portion of the decoration substrate.

The present invention also provides a wireless terminal window-integrated keypad having the decoration substrate, comprising a transparent window portion on the decoration substrate and a keypad portion in which part or all of the keys are expressed by the hardened stereoscopic decorative layer. Provide a keypad.

The present invention also provides a wireless terminal having the wireless terminal window.

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

2A and 2B and FIGS. 3A and 3B are cross-sectional schematic diagrams of a decoration substrate 1 for a wireless terminal according to one embodiment of the present invention. As shown, a substrate 10 having a primary decoration layer 11 formed on at least one side (shown on one side in FIG. 2A and on both sides in 2B) of the upper side and the lower side, and an upper portion of the substrate 10. A curable stereoscopic decoration layer 20 formed to protrude in a three-dimensional manner; And a secondary decoration layer 12 formed between all or a part of the curable stereoscopic decoration layer 20 and the substrate. 3A and 3B, the substrate 10 decorated with the primary decoration layer is hard-coated on at least one of the upper surface, the lower surface, the upper surface of the primary decoration layer 11, and the lower surface of the substrate. There may be.

The substrate 10 is not particularly limited, and synthetic resin materials such as acrylics such as PMMA (AC), polyesters such as polycarbonate, PET, and PBT, metal materials such as STS, Al, Cu, general glass, and tempered glass. Etc. can be used, but it is not limited, but it is preferable that both sides of the decoration are exposed.

3A and 3B illustrate an example in which a hard coating layer is formed, and in the case where the substrate is a synthetic resin, a glass, a metal substrate, or the like, a cross-sectional schematic diagram according to each embodiment is shown. As shown, when the base material is a synthetic resin base material may be hard-coated to improve scratch resistance and abrasion resistance on at least an upper surface or both surfaces of an upper surface and a lower surface of the substrate. In other words, after forming the decoration layer and the three-dimensional decorative layer on the desired portion, the shaving hard coating is removed, the decoration layer of the other portion has the advantage of having sufficient scratch resistance.

In addition, when the substrate is a glass substrate, it may be hard coated, but the surface of the glass has sufficient abrasion resistance and scratch resistance, so that both top and bottom surfaces thereof, as shown in FIGS. 2A and 2B, may be sufficiently implemented.

In addition, even when the substrate is a metallic substrate (FIG. 3B), since the surface also has sufficient wear resistance and scratch resistance, both top and bottom surfaces can be sufficiently implemented without hard coating, but in this case, due to the opacity of the metal substrate. Because of this, it is preferable that the first decoration layer itself is also implemented on the upper surface. Accordingly, the hard coating layer is preferably formed thereon to protect the first decoration layer. However, the secondary additional decoration on the primary decoration and the hard coating layer may be the same structure and configuration as the case of using a transparent type substrate.

The first (11) and the second (12) decoration layer is a layer for decorating a color such as a specific pattern and background color or displaying letters and numbers. The decoration layer may be formed of a material exhibiting color on the substrate 10 by a printing method, a vapor deposition method, or the like. For partially different decoration on the same surface, it may be formed by selectively etching after deposition or by selectively printing only a specific area by screen printing. As an example of the manufacturing method, first, by depositing colored particles on the back of the substrate to form a deposition layer, a portion of the deposition layer is removed, and then printed by printing numbers, letters, or colors indicating keys on the removed portions. The decoration layer can be formed in such a manner as to form a layer.

In addition, the first decoration layer 11 may be formed on the upper or lower portion of the substrate 10 to implement different decorations on the same side, or both may be formed on both surfaces to implement a combination of various decorations. For example, a decoration layer for expressing a background color may be generally formed on the lower portion, and a decoration layer for expressing a specific pattern, height, etc. may be partially formed on the upper portion.

In addition, the secondary decoration layer 12 having a special shape and various colors is formed on the other surface of the upper surface (front surface) of the substrate or other surfaces in the state of the first decoration as described above. Design aesthetics and independence can be maximized.

In addition, before the formation of the first and second decoration layers 11 and 12, pretreatment such as wet or dry primer treatment may be performed to improve the efficiency and reliability of the decoration. Each decoration layer is a sticker type. It may be formed as.

The thickness of the decoration layer (11, 12) as described above is not limited, but 20nm ~ 100㎛ is good, in the case of the sticker type 20nm ~ 300㎛ is also possible.

The curable stereoscopic decorative layer 20 has a protruding shape or a part thereof is formed on the secondary decoration layer 12. The hardenable three-dimensional decorative layer 20 has a good surface hardness that can increase the wear resistance, scratch resistance, good adhesion to the base material is preferred, for this purpose it is preferable to use a hardening, in particular a photo-curable hard coating liquid . The curable stereoscopic decorative layer 20 may be formed on top of the substrate (or hard coated substrate) separately from the upper decoration layer. Preferably, when the primary decoration layer 11 is positioned on the base 10, it is preferable to be formed on the primary decoration layer 11 or on the layer where the primary decoration and the secondary decoration overlap. It may also be formed on the secondary decoration layer.

The curable hard coating liquid may further include a colorant to implement various colors, and may further include additives to implement various textures and appearances. Examples of the additive include an additive for the curable stereoscopic layer to express the texture of Matte (anti-glare) or Anti-glare (anti-glare). Examples include, but are not limited to, organic polymers containing elements such as chlorine, bromine, and sulfur, ultrafine metal oxides such as titanium oxide, zirconium oxide, and zinc oxide, or organic fluorine-based organic polymers or silica, Magnesium fluoride and the like can be used. In addition, indium tin oxide, tin oxide, antimony tin oxide, zinc aluminum oxide and the like can be exemplified.

As a method of implementing the curable stereoscopic decorative layer 20, a mold of a roll type or a plate type is manufactured, and a protrusion shape is directly applied to the mold to apply a curable hard coating liquid to the surface of the substrate, which is then hardened by a mold and cured. Although it may be formed using a method of detaching a mold, it is difficult to form various three-dimensional decorative layers, and it is not easy to implement a three-dimensional decorative layer selectively and neatly at a specific part. More preferably, the curable hard coating liquid may be formed by discharging a dispensing method using a dispenser or / and a printing method, and curing the curable hard coating liquid by applying light or UV and / or heat.

In addition, as shown, the secondary decoration layer 12 formed on the base 10 may be formed to correspond to the portion where the curable stereoscopic decorative layer 20 is formed. This forms a wide decoration layer on the base of the primary or secondary or a combination of both, and because the dispensing or printing of the curable stereoscopic layer on the secondary decoration layer 12, precisely matching the position, or to form a curable stereoscopic layer After this can be implemented by removing the decoration layer of the portion other than the three-dimensional decorative layer. In this case, a wet etching method is very useful as a method of removing the decoration layer, and in some cases, a laser etching method may also be applied.

In addition, as shown in Figures 4 to 5, the three-dimensional decoration layer 20 is implemented in the same area as the secondary decoration layer 12 (Fig. 4), or wrap around the secondary decoration layer 12 as a whole It may be implemented in the shape (Fig. 5), but is not limited to the upper portion of the three-dimensional decorative layer 20 may have a round shape.

The three-dimensional decoration layer 20 is not limited, but 0.02mm ~ 1.00mm is useful. Below the above range, there may be less three-dimensional feeling with good aesthetics.

As an example of the material of the curable stereoscopic decorative layer 20, a hard coating composition will be described in detail. The hard coating composition is a thermosetting hard coating agent such as silicone, melamine, etc., but the UV curing hard coating agent is more preferable in terms of production of curing reactivity. As an ultraviolet curing hard coating agent, radical polymerizable hard coating agents, such as unsaturated polyester resin type and an acryl type, cationic polymerizable hard coating agents, such as an epoxy type and a vinyl ether type, can be used. In consideration of curing reactivity and surface hardness, an acrylic radical polymerizable hard coating agent is preferable. In addition, it is possible to use an ultraviolet curable resin in which a thermosetting component is slightly added to partially heat curing.

The acrylic radical polymerizable hard coating agent contains a polyfunctional (meth) acrylate having a two or more (meth) acryloyl groups in its molecule and a photopolymerization initiator as main components.

As a polyfunctional (meth) acrylate, for example, 1,6-hexanedi (meth) acrylate, (poly) ethylene glycol di (meth) acrylate, (poly) propylene glycol di (meth) acrylate, neo Bifunctional (meth) acrylates such as pentyl glycol di (meth) acrylate, pentaerythritol tri (meth) acrylate, trimethylolpropane tri (meth) acrylate, glycerol tri (meth) acrylate, tris- (2- (Meth) more than tetrafunctional (meth) acrylates, such as hydroxyethyl)-isocyanuric acid ester (meth) acrylate, pentaerythritol tetra (meth) acrylate, and dipentaerythritol hexa (meth) acrylate Acrylate is mentioned.

Furthermore, as a polyfunctional (meth) acrylate, the epoxy (meth) acrylate obtained by making (meth) acrylic acid react with the compound which has two or more epoxy groups in a molecule | numerator, polyhydric alcohol, polyhydric carboxylic acid, and / or its anhydrides ( Polyester acrylate obtained by esterifying meta) acrylic acid, urethane acrylate obtained by making polyhydric alcohol, polyhydric isocyanate, and hydroxyl-containing acrylate react etc. are mentioned.

Among them, for example, pentaerythritol tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate and the like are preferable in that high hardness is obtained.

One of these may be used alone, or two or more thereof may be used in combination. The usage-amount of the said polyfunctional (meth) acrylate is about 20 to 80 weight% (in terms of solid content) in a hard coat agent.

Moreover, in addition to the said polyfunctional (meth) acrylate, a photopolymerizable oligomer or a polymer can also be used. For example, as an oligomer or polymer which has a (meth) acryloyl group at the terminal, a weight average molecular weight Mw is about 2000-500000, for example.

As an oligomer or a polymer part, what is formed from a styrene polymer, a styrene / acrylonitrile copolymer, a styrene / (meth) acrylate copolymer, a (meth) acrylate polymer, butadiene polymer, a silicone polymer, etc. are mentioned, for example. Can be. As a photopolymerizable oligomer or a polymer, polystyryl methacrylate, polybutadiene acrylate, etc. are mentioned, for example.

As a photoinitiator, various well-known things can be used. For example, ketones (acetophenone, propiophenone, anthraquinone, thioxanthone, benzophenone or derivatives thereof), benzoic acid esters (e.g. methyl p-dimethylaminobenzoate), benzoin ether or derivatives thereof (e.g. For example, it may be selected from benzoin methyl ether, benzoin ethyl ether), acyl phosphine oxide and the like. Of course, you may use other than these.

The usage-amount of a photoinitiator can be chosen from the range of 0.1-20 weight part, Preferably it is about 1-10 weight part with respect to 100 weight part of said polyfunctional (meth) acrylates (A).

Known additives used in other hard coating solutions may be included. For example, an organic solvent may be added to dilute the hard coating agent. For example, alcohols, such as ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, methyl isobutyl ketone, cyclohexanone, 2-methoxyethanol, 2-ethoxyethanol, ethylene glycol dimethyl ether , Ethylene glycol diethyl ether, diethylene glycol dimethyl ether, xylene, methyl cellosolve, ethyl cellosolve and the like.

6 illustrates a wireless terminal window 2 having a decoration substrate 1 according to an embodiment of the present invention, wherein a transparent window portion is formed on a portion of the decoration substrate.

The decoration board 1 of the present invention can be suitably applied to a window covering and protecting a display window for implementing an image in a wireless terminal. To this end, a transparent window may be provided at a portion of the decoration substrate corresponding to the display window of the wireless terminal. As an example, if the substrate of the decoration substrate is made of a synthetic resin substrate and glass of a transparent material, and the decoration layer and the three-dimensional decoration layer are formed outside the window, a wireless terminal window having excellent aesthetics can be manufactured by a simple method. Will be. In addition, in the case of the touch panel window, as shown in FIG. 6 (a), the touch panel window may be formed on a transparent window part according to the size, shape, position, or touch position, which does not significantly affect the image. It is included in the window. The wireless terminal window can be used as a window of an external display window providing simple information as well as an internal display window of the wireless terminal.

7 is a wireless terminal window-integrated keypad 3 with a decoration substrate 1 according to an embodiment of the present invention, wherein a part or all of the keys are formed by a transparent window portion and the curable stereoscopic decorative layer on the decoration substrate. It shows a wireless terminal window integrated keypad consisting of the keypad portion represented.

In the case of a bar type wireless terminal, it is preferable that the display window and the keypad are integrally formed to reduce the assembly process and to simplify the configuration. In this case, the above-described window portion is formed in a part of the decoration substrate, and the keypad portion is formed in the keypad area, so that it can be applied to the window-integrated keypad excellently.

As an example, as shown, the key can be represented by forming all or a part of the key into the three-dimensional decorative layer on the keypad portion of the decoration substrate, wherein the primary and secondary decoration layers and the three-dimensional decorative layer By using the three-dimensional decorative layer as a flat panel, and assembling with other configurations of the keypad known in the art by using the three-dimensional decorative layer can be easily manufactured a window-integrated keypad with excellent aesthetic sense. .

The above embodiments are intended to describe the present invention in detail, and are not intended to limit the present invention, and thus modifications, modifications, omissions, etc. that can be applied within the scope of the technical idea of the present invention are defined by the claims. It is included in the scope of the invention.

The decoration board for a wireless terminal according to the present invention, the window of the wireless terminal using the same, and the window-integrated keypad can be decorated in various ways without being limited by the type of material, and have excellent scratch resistance and wear resistance by a simple method. It is excellent in three-dimensional aesthetics.

Claims (12)

A substrate on which a primary decoration layer is formed on at least one of an upper side and a lower side; A curable stereoscopic decoration layer formed to protrude three-dimensionally on an upper portion of the substrate; And And a secondary decoration layer formed between all or a portion of the curable stereoscopic decoration layer and the substrate. The decoration board for a wireless terminal according to claim 1, wherein the curable stereoscopic decorative layer is formed by curing a photocurable and thermosetting or two types of hard coating liquids. The decoration board of claim 1, wherein the base material is a flat polymer sheet. The decoration substrate for a wireless terminal according to claim 1, wherein the substrate is transparent plain glass or tempered glass. The decoration board of claim 1, wherein the substrate is an opaque metal material. The decoration board for a wireless terminal according to claim 1, wherein the substrate decorated with the primary decoration layer is hard coated on at least one of an upper surface, a lower surface, an upper surface of the primary decoration layer, and a lower surface of the substrate. The decoration board for a wireless terminal according to claim 1, wherein the curable stereoscopic decorative layer includes a colorant to express color. The decoration board of claim 1, wherein the curable stereoscopic decorative layer comprises an additive for expressing the texture of Matte or Anti-glare. The decoration board of claim 1, wherein the decoration layer is formed by deposition, printing, or a combination thereof. 10. A wireless terminal window comprising the decoration substrate of any one of claims 1 to 9, wherein a transparent window portion is formed on a portion of the decoration substrate. 10. A wireless terminal window-integrated keypad having a decoration substrate according to any one of claims 1 to 9, comprising a transparent window portion on the decoration substrate and a keypad portion in which part or all of the keys are expressed by the curable stereoscopic decorative layer. Wireless terminal window integrated keypad. A wireless terminal having a wireless terminal window of claim 10.

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