KR101567074B1 - Decorating material with backlight unit and method of controlling the same - Google Patents

Abstract

A light-emitting decorative material and a control method thereof according to embodiments include a light-transmitting portion including a decorative pattern and having light transmittance; A backlight unit including a plurality of light emitting devices having different light emission characteristics according to characteristics of the decorative pattern of the light transmitting unit; A user detection unit detecting a user's access; And a controller for controlling the backlight unit according to an access state of the user sensed through the user sensing unit.

Decorative material, film, lighting, backlight

Description

TECHNICAL FIELD [0001] The present invention relates to a light-emitting decorative material and a method of controlling the same. BACKGROUND OF THE INVENTION [0002]

The embodiment relates to a light-emitting decorative material and a control method thereof.

The decorative material should be used to decorate the living space beautifully and should be able to exhibit aesthetic effects. Therefore, a synthetic resin decorative material which is easy to process has been widely used to decorate the exterior or interior of furniture, home appliances, and electronic products.

Generally, a synthetic resin decorative material is produced by flat printing a pattern on a synthetic resin sheet, a film, a panel, applying a color effect, and then coating a transparent surface layer. Such a synthetic resin decorative material is insufficient to meet the consumer's aesthetic desire because of the simple repetition of the flat pattern and the simplicity of the pattern color. As a result of this improvement, a decorative material having a three-dimensional effect has appeared due to a three-dimensional pattern formed on the surface or having a flat surface by adhering a transparent layer on the three-dimensional pattern.

However, the conventional decorative material has a technical limitation in forming a delicate pattern or imparting various dimensional sensations and colors, and in particular, there is a problem that no decoration effect can be obtained at a low illuminance.

The embodiment provides an emissive decorative material having excellent aesthetic effects such as three-dimensional feeling and gradation, excellent decorative effect even in a low illuminance, excellent power efficiency, and a control method thereof.

The light-emitting decorative material according to the embodiment includes a light-transmitting portion including a decorative pattern and having light transmittance; A backlight unit including a plurality of light emitting devices having different light emission characteristics according to characteristics of the decorative pattern of the light transmitting unit; A memory unit for storing driving information of the backlight unit; And a controller for controlling the backlight unit according to the driving information stored in the memory unit.

A method of controlling a light emitting decorative material according to an embodiment of the present invention includes: detecting whether a user is approaching; And controlling at least one of a blinking state, a hue, and an illuminance of the illumination light including the ornamental pattern and supplied to the transparent portion according to the access state of the user.

According to the embodiment, it is possible to provide a light-emitting decorative material excellent in power efficiency and durability, and a control method thereof, which can obtain an excellent decorative effect even in a place with low austenity, which is excellent in aesthetic effect such as three-dimensional feeling and gradation.

Hereinafter, a light-emitting decorative material and a control method thereof according to embodiments will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail to avoid unnecessarily obscuring the subject matter of the present invention.

Hereinafter, a glass decorative material according to an embodiment of the present invention and a method of manufacturing the same will be described in detail with reference to the accompanying drawings. In the description of the embodiments, it is described that each plate, film, member, mask or layer is formed "on" or "under" each plate, member, film, In this case, "on" and "under " all include being formed either directly or indirectly through another element. In addition, the reference to the top or bottom of each component will be 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.

FIG. 1 is a view showing the state of use of the light-emitting decorative material according to the embodiment, in which the light-emitting decorative material 15 is attached to a case of a refrigerator.

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

The door 10 is divided into a refrigerator compartment door 11 for shielding the refrigerator compartment and a freezer compartment door 12 for shielding the freezer compartment. The refrigerator compartment door 11 and the freezer compartment door 12 are divided into a door 10, And a door handle 21 for opening and closing the door. The freezer compartment door 12 is provided with a display unit 41 for displaying the operating state of the refrigerator and an operating unit 42 for operating the operation of the refrigerator.

As described above, the front surface of the refrigerator door 10 is always exposed to the user, and the light-emitting decorative material 15 can be used to provide a beautiful appearance.

Hereinafter, the structure and control method of the light-emitting decorative material 15 will be described.

2 is a control block diagram of a light-emitting decorative material according to an embodiment.

2, the light-emitting decorative material 15 according to the present embodiment includes a backlight unit 200 including a light-emitting device, an input unit 500 for user setting, a driving unit for driving the backlight unit 200 A user sensing unit 600 for sensing whether the user is approaching a user, a memory unit 400 for storing data such as a program and user setting information for the sensing unit 600, A control unit 300 for controlling the backlight unit 200 based on data stored in the backlight unit 400 and a light projecting unit 100 for receiving illumination light from the backlight unit 200,

The transparent portion 100 transmits the illumination light provided by the backlight unit 200 and changes the color and illumination effect of the light-emitting decorative member according to the light emission color and illumination of the backlight unit 200. The transparent portion 100 may have a decorative pattern and may be formed of a light transmitting material such as a film or a panel. The decorative pattern formed on the transparent portion 100 may be given various characteristics such as shape, color, size and depth of irregularities, pitch, and the like.

The backlight unit 200 provides illumination light according to the characteristics of the decorative pattern formed on the transparent portion 100. The backlight unit 200 may include various types of light emitting devices such as a light emitting diode (LED) capable of providing illumination light, an organic light emitting diode, and a semiconductor laser. In this embodiment, a case of providing illumination light to the transparent portion 100 using a plurality of light emitting diodes (LEDs) will be exemplified. When the backlight unit 200 is composed of a plurality of LEDs, it is possible to arrange the LEDs of various colors to change the color of the backlight unit 200.

The input unit 500 receives the color of light emitted by the backlight unit 200, the illuminance, the blinking period, and the like from the user. The input unit 500 may be implemented as a plurality of buttons, switches, touch panels, and the like. It is also possible to allow the operating section 42 (see Fig. 1) for operating the refrigerator to perform the function of the input section 500 for driving setting of the light-emitting decorative material.

The memory unit 400 stores driving information for controlling the backlight unit 200, and the driving information may be provided in a predetermined program format. Also, the user setting information related to the driving of the backlight unit 200 may be stored in the memory unit 400 as well. The driving information can be set by the designer, and the user can set new driving information through the input unit 500 or update the stored information.

The user detection unit 600 can detect whether or not the user is approaching the periphery of the light emitting decorative material 15. [ The user sensing unit 600 may include a sensor having a function of sensing an object moving in the sensing area, such as an infrared (IR) sensor using infrared rays, an ultrasonic sensor using ultrasonic waves, a heat sensing sensor, or an optical sensor. Depending on the type of sensor applied to the user sensing unit 600, it is possible to detect not only the presence of the user but also the distance from the user.

The control unit 300 controls the driving of the backlight unit 200 according to the sensed values sensed by the user sensing unit 600. [ For example, the controller 300 maintains the backlight unit 200 off in a normal state and controls the backlight unit 200 to turn on when a user's access is detected through the user sensing unit 600 Can be controlled. That is, only when the user approaches the periphery of the light-emitting decorative material 15, the backlight unit 200 is turned on to supply the illumination light. Otherwise, the backlight unit 200 is kept in the off state, And the lifetime of the backlight unit 200 can be extended.

When the user sensing unit 600 supports the function of measuring the distance d of the user, the controller 300 controls the backlight unit 200 so that different illumination lights are provided according to the separation distance d from the user Can be controlled. For example, when the user is farther than the predetermined reference distance k, and when the user is close to the reference distance k, illumination light of different illuminance or color can be provided. The control unit 300 relatively reduces the illuminance when the distance d from the user is greater than the reference distance k, that is, when the user is far away, and when the distance d from the user is less than the reference distance k, The illumination light of a relatively high illuminance can be supplied. The control unit 300 may also provide illumination light of different colors when the separation distance d from the user is larger than the reference distance k and when the separation distance d is smaller than the reference distance k Do.

The controller 300 may control the plurality of LEDs included in the backlight unit 200 to blink for each predetermined color so that the hue of the backlight unit 200 changes. In addition, the controller 300 can control the illuminance of each LED by controlling the amount of current applied to the backlight unit 200, and it is possible to control the blinking state of the backlight unit 200.

The control function of the control unit 300 may be implemented by a program stored in the memory unit 400 and may be set or canceled according to a user's input through the input unit 500. [

If the detection value of the user sensing unit 600 and the driving current of the backlight unit 200 are configured to be interlocked with each other by using the fact that the sensing value of the user sensing unit 600 is outputted in the form of the current magnitude , The backlight unit 200 can be controlled according to the user's proximity even with a relatively simple configuration. For example, it is possible to apply a structure in which the sensing current, which is a sensing value of the user sensing unit 600, is connected to the GPIO of the driving chip of the backlight unit 200.

According to this configuration, the light-emitting decorative material according to the present embodiment can detect whether the user is approaching through the user sensing unit 600 and control the blinking state, illuminance, color, etc. of the backlight unit 200. Thus, not only the decoration effect of the transparent portion 100 formed with the decorative relief pattern can be maximized, but also the power for lighting can be saved and the life of the backlight unit 200 can be prolonged.

4 is a configuration diagram of a light transmitting portion of the light emitting decorative material according to the embodiment.

4, the transparent portion 100 includes a polymer film 140 having a concavo-convex pattern using an ultraviolet curable resin 110, a metal layer 120 formed by coating a metal material on the concavo- A protective layer 130 formed on the metal layer 120 and an adhesive layer 150 formed on the surface of the polymer film 140 on which the concavo-convex pattern is not formed and the transparent layer 160 bonded by the adhesive layer 150 do.

The ultraviolet ray hardening resin 110 may be patterned using a mold to have a delicate concave-convex pattern of embossed or engraved.

The metal layer 120 may be formed by a PVD (Physical Vapor Deposition) method, a plating method, a metal film lamination method, or the like in order to realize a metal characteristic. By controlling the thickness of the metal layer 120, the amount of light transmitted through the backlight illumination light can be adjusted. For example, depending on the thickness of the metal layer 120, a transparent or semitransparent effect can be obtained.

The protective layer 130 is formed to protect the vapor deposition surface to improve durability. The material of the protective layer 130 is not particularly limited, but a polyester film or a film of a polyester / A composite film, or the like, and may be formed by a method such as PTN printing, film lamination, or vapor deposition. Further, the protective layer 130 colored with a predetermined color may be formed to enhance the appearance of the decorative material.

The adhesive used for the adhesive layer 150 can maintain transparency even after curing to maintain the shape of the relief pattern as it is and can provide excellent adhesion to the transparent layer 160. [

The transparent layer 160 may be made of glass, or a transparent plastic panel or sheet. The glass may be any ordinary glass product such as general glass, tempered glass, and bonded glass. The transparent plastic panel may be made of polycarbonate, A panel such as polyethylene terephthalate or a flexible sheet may be used. The transparent layer 160 may be formed of a transparent plate having various thicknesses in accordance with the purpose of use, and is suitable for displaying the pattern of the concave-convex portion and the pattern developed from the metal layer 120.

According to this configuration, the transparent portion 100 has a three-dimensional concavo-convex pattern and can transmit the illumination light provided by the backlight portion 200 to the outside. The backlight unit 200 may be selectively positioned on either side of the transparent portion 100. When the backlight unit 200 is installed at the position "A", the illumination light is emitted through the transparent layer 160 of the light projecting unit 100. When the backlight unit 200 is installed at the position "B" (Not shown). The configuration of the transparent portion 100 described herein is only one example. The transparent portion 100 may have various configurations that allow the illumination light of the backlight portion 200 to pass therethrough.

3 is a driving state view of the light-emitting decorative material according to the embodiment.

3, the light-emitting decorative material includes a light-projecting portion 100 having a concave-convex pattern and a backlight portion 200 for supplying illumination light to the light-projecting portion 100. The light-projecting portion 100 and the backlight (200).

The transparent portion 100 may include a first region a ', a second region b', and a third region c 'having different characteristics. Each of the regions a ', b', and c 'may be defined as a groove pattern, and depth, width, pitch, and the like of the groove pattern may be formed differently depending on the region. In this way, when the depth, width, pitch, etc. of the groove pattern are formed differently, the groove pattern itself can have a three-dimensional effect.

The backlight unit 200 may provide illumination light to the concavo-convex pattern of the transparent portion 100, thereby improving the three-dimensional effect of the groove pattern formed in the transparent portion 100 and imparting various colors to the groove pattern. Accordingly, the backlight unit 200 may include a plurality of LEDs for providing illumination light. The backlight unit 200 may be configured by arranging LEDs having different colors, roughnesses, sizes, etc. in various shapes according to the shape, size, depth, width, pitch, etc. of patterns formed in the transparent portion 100 have.

For example, a first backlight a illuminating the first area a ', a second backlight b illuminating the second area b', and a third backlight b illuminating the third area c ' The colors of the backlight (c) can be configured differently.

It is also possible to increase the three-dimensional effect and the gradation effect on the concavo-convex pattern of the transparent portion 100 by setting different illuminances of the first backlight (a), the second backlight (b), and the third backlight (c).

The control unit 300 controls the brightness of the LEDs included in the backlight unit 200 so that the illuminance and the color and the blinking state of the illumination supplied to the light projecting unit 100 are controlled according to the setting information stored in the memory unit 400. [ And controls the driving.

In addition, by arranging the transparent portion 100 and the backlight portion 200 at a predetermined interval, it is possible to project the concavo-convex pattern naturally. The spacing between the transparent portion 100 and the backlight 200 can be variously modified in consideration of the installation conditions of the light-emitting decorative material and the light transmittance of the transparent portion 100. For example, when the light emitting type decorative material is mounted on the refrigerator case and the transparent portion 100 described with reference to FIG. 3 is used, the spacing distance between the transparent portion 100 and the backlight portion 200 is set to 1 mm To about 50 mm.

5 is a flowchart of a method of controlling the light-emitting decorative material according to the present embodiment.

The user can set the automatic lighting control mode in which the lighting is controlled according to the user's accessibility through the input unit 500 (S100).

When the automatic lighting control mode is set, the control unit 300 activates the function of the user sensing unit 600 and monitors whether the user is approaching (S120).

If the user's access is not detected, the control unit 300 controls the backlight unit 200 to remain off (S130).

If the user's access is detected through the user detection unit 600, the control unit 300 calculates the distance d to the user (S140). Here, when the user sensing unit 600 supports the distance calculating function, the distance d to the user may be calculated by the user sensing unit 600 and provided to the controller 300. [

The control unit 300 controls the lighting function according to the distance d to the user (S150). The control unit 300 may control the illuminance or hue of the backlight unit 200 by comparing the preset reference value k with the distance d between the user and the user. That is, different lights can be provided depending on whether the user is farther than the reference value k (d> = k) or close (d <k) or when the user touches (d = 0) .

On the other hand, if the controller 300 provides only a simple ON / OFF function of the backlight unit 200 according to whether the user has access thereto, steps S140 and S150 may be omitted.

As described above, the light-emitting decorative material according to the present embodiment supplies illumination light having various colors and roughness to the concavo-convex pattern formed on the transparent portion 100 using the backlight unit 200, thereby improving the three- Color and maximize the aesthetic effect. In addition, the light-emitting decorative material according to the present embodiment controls the illumination light on / off according to the approach of the user, thereby minimizing the consumption of the power source for providing the illumination function and extending the service life of the backlight unit 200.

Such a light-emitting decorative material can be applied to various fields such as household appliances such as a refrigerator, an air conditioner, an air purifier, and a water purifier, furniture such as a dresser, a drawer, a sink, and a wall.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

1 is a use state diagram of a light-emitting decorative material according to an embodiment.

2 is a control block diagram of a light-emitting decorative material according to an embodiment.

3 is a driving state view of a light-emitting decorative material according to an embodiment.

4 is a configuration diagram of a light-projecting portion of a light-emitting decorative material according to an embodiment.

5 is a control flowchart of a light-emitting decorative material according to an embodiment.

Claims (9)

A transparent portion including a decorative pattern and having light transmittance; A backlight unit including a plurality of light emitting devices having different light emission characteristics according to characteristics of the decorative pattern of the light transmitting unit; A user detection unit detecting a user's access; And a control unit for controlling the backlight unit according to an access state of the user sensed by the user sensing unit, The light- A polymer film having a concavo-convex pattern formed of an ultraviolet curable resin; A metal layer coated on the concavo-convex pattern surface and having an upper surface and a lower surface corresponding to the concavo-convex pattern surface, the metal layer having transparency or translucency; A protective layer formed on the metal layer; An adhesive layer formed on the polymer film surface on which the concavo-convex pattern is not formed; And a transparent layer adhered by the adhesive layer, Wherein the ornamental pattern of the transparent portion includes at least two regions having different concavo-convex patterns, Wherein the backlight unit is controlled to have different illuminance for each region of the ornamental pattern. The method according to claim 1, Wherein the user sensing unit includes at least one of an infrared (IR) sensor, an ultrasonic sensor, a thermal sensor, and an optical sensor. The method according to claim 1, The backlight unit includes: And a plurality of LEDs having at least one of color, roughness, size, and arrangement differing from each other. The method of claim 3, Wherein, And controls at least one of the blinking state of the backlight unit, the hue, and the illuminance according to the sensing result sensed by the user sensing unit. delete delete Detecting a user's accessibility; And controlling at least one of a blinking state of the illumination light supplied to the transparent portion and a color and an illuminance depending on the access state of the user, Wherein the ornamental pattern is divided into at least two regions having different groove patterns, the illumination light is controlled to have different illuminance for each region of the ornamental pattern, The light- A polymer film having a concavo-convex pattern formed of an ultraviolet curable resin; A metal layer coated on the concavo-convex pattern surface and having an upper surface and a lower surface corresponding to the concavo-convex pattern surface, the metal layer having transparency or translucency; A protective layer formed on the metal layer; An adhesive layer formed on the polymer film surface on which the concavo-convex pattern is not formed; And a transparent layer adhered by the adhesive layer,  A method of controlling a light emitting decorative material. 8. The method of claim 7, And controlling at least one of a blinking state of the illumination light supplied to the transparent portion and a color and an illuminance depending on the access state of the user, And controlling the illumination light to be supplied when it is determined that the user has approached the light-emitting decorative material. 8. The method of claim 7, And controlling at least one of a blinking state of the illumination light supplied to the transparent portion and a color and an illuminance depending on the access state of the user, Calculating a distance to the user; And controlling at least one of a color and an illuminance of the illumination light according to the distance from the user.

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