KR102384653B1 - Luminous interior material for vehicle - Google Patents

Abstract

The present invention relates to a luminous interior material for a vehicle, which can implement 3D effect patterns. The luminous interior material for a vehicle comprises: a light emitting layer for emitting light when power is applied; a diffusion layer laminated on the light emitting layer to diffuse and transmit light generated from the light emitting layer; a first pattern layer laminated on the diffusion layer, and having a first transmission region through which light is transmitted and a first shielding region through which no light is transmitted; a foam layer laminated on the first pattern layer, capable of being elastically compressed and deformed, and for transmitting light; and a second pattern layer laminated on the foam layer, and having a second transmission region through which light is transmitted and a second shielding region through which no light is transmitted. With this configuration, the luminous interior material for a vehicle can implement 3D effect patterns, thereby further improving the aesthetics of the interior of a vehicle.

Description

Luminous interior materials for vehicles {LUMINOUS INTERIOR MATERIAL FOR VEHICLE}

The present invention relates to a light-emitting interior material for a vehicle, and more particularly, to a light-emitting interior material for a vehicle capable of implementing a three-dimensional effect pattern.

In general, an indoor lighting device of a vehicle is a device for illuminating the interior of a vehicle, and is basically installed on a roof or a door of a vehicle, and may be detachably mounted on a cigar jack of a dashboard and a center fascia.

The vehicle interior lighting device is installed in a position adjacent to the front shield glass to irradiate the front seat portion, and is installed in the middle portion between the front seat and the rear seat to irradiate the entire interior of the vehicle.

In addition, the lighting device installed on the door is irradiated to assist passengers in getting on and off, and the lighting device detachably mounted on the cigar jack irradiates the center fascia and its vicinity to facilitate the use of convenience facilities while providing an interior effect. can be expected

As described above, conventionally, lighting devices are installed and used in various positions of the vehicle, but only a two-dimensional mood lighting effect can be implemented because they are provided to simply generate light or to change colors.

Korea Patent Publication No. 2016-0026424 (2016.03.09)

The present invention was devised to solve the above problems, and an object of the present invention is to provide a light emitting interior material for a vehicle capable of implementing a three-dimensional effect pattern.

In order to achieve the above object, a light emitting interior material for a vehicle according to a preferred embodiment of the present invention includes: a light emitting layer that generates light when power is applied; a diffusion layer laminated on the light emitting layer and transmitting the light generated from the light emitting layer; a first pattern layer stacked on the diffusion layer and having a first transmitting area through which light is transmitted and a first shielding area through which light is not transmitted; a foam layer that is laminated on the first pattern layer, is elastically compressible, and transmits light; and a second pattern layer laminated on the foam layer, in which a second transmitting area through which light is transmitted and a second shielding area through which light is not transmitted are formed.

Here, the second pattern layer may be formed such that the second transmissive region is formed at a position facing the first shielding region, and the second shielding region is formed at a position facing the first transmissive region.

In this case, in the second pattern layer, the second transmissive region may be formed to be larger than the first shielding region, and the second shielding region may be formed to be smaller than the first transmissive region.

Alternatively, in the second pattern layer, the second transmissive region may be formed to be smaller than the first shielding region, and the second shielding region may be formed to be larger than the first transmissive region.

In addition, in the first pattern layer, a plurality of the first transmissive region and the first shielding region may be formed to be alternately disposed, and the first transmissive region may be formed to have different thicknesses.

In this case, the first pattern layer may be formed such that the thickness of the first transmission region decreases from the outside to the center.

Alternatively, in the second pattern layer, a plurality of the second transmissive region and the second shielding region may be formed to be alternately disposed, and the second transmissive region may be formed to have different thicknesses.

In this case, the second pattern layer may be formed such that the thickness of the second transmission region decreases from the outside to the center.

Furthermore, in the diffusion layer, a first pattern having a smaller thickness is formed on one surface on which the first pattern layer is stacked, and the first pattern may be formed at a position facing the first transmission region.

Alternatively, in the diffusion layer, a second pattern having a smaller thickness is formed on the other surface on which the light emitting layer is laminated, and the second pattern is formed to face the first shielding area.

In addition, the light emitting interior material for a vehicle according to an embodiment of the present invention includes a sensor layer for sensing a user's touch; and a control unit that receives data from the sensor layer and controls to apply or cut off power to the light emitting layer.

In addition, a skin layer laminated on the second pattern layer and through which at least a portion of light is transmitted; may be further included.

According to the light emitting interior material for a vehicle according to the present invention, it is possible to implement a three-dimensional effect pattern, thereby obtaining the effect of further improving the aesthetics of the vehicle interior.

1 is a cross-sectional view schematically showing a light emitting interior material for a vehicle according to an embodiment of the present invention;
2 is a photograph schematically showing a state in which a light emitting interior material for a vehicle according to an embodiment of the present invention is applied to a door trim;
3 to 6 are cross-sectional views schematically showing various shapes of the first pattern layer and the second pattern layer in the light emitting interior material for a vehicle according to an embodiment of the present invention;
7 to 9 are cross-sectional views schematically showing various types of diffusion layers in the light emitting interior material for vehicles according to an embodiment of the present invention;
10 is a block diagram schematically illustrating a configuration for operating a light emitting layer in a light emitting interior material for a vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, terms such as first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The term “and/or” may include a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in between. can be understood On the other hand, when an element is referred to as being “directly connected” or “directly connected” to another element, it may be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and one or more other features It may be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, it is interpreted in an ideal or excessively formal meaning. it may not be

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for more clear explanation.

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a cross-sectional view schematically showing a light-emitting interior material for a vehicle according to an embodiment of the present invention, and FIG. 2 is a photograph schematically illustrating a state in which the light-emitting interior material for a vehicle is applied to a door trim. 3 to 6 are cross-sectional views schematically showing various shapes of the first pattern layer and the second pattern layer in the light emitting interior material for a vehicle, and FIGS. 7 to 9 are various shapes of the diffusion layer in the light emitting interior material for a vehicle. It is a schematic cross-sectional view. And, FIG. 10 is a block diagram schematically showing a configuration for operating a light emitting layer in the light emitting interior material for a vehicle.

1 to 10 , the light emitting interior material 100 for a vehicle according to an embodiment of the present invention transmits the light emitting layer 110 that emits light when power is applied, and diffuses and transmits the light generated from the light emitting layer 110 . A first pattern layer 130 having a diffusion layer 120 that allows light to pass through, a first transmitting area 131 through which light is transmitted and a first shielding area 132 through which light is not transmitted, and elastically compressively deformable and transmittance of light It may include a foam layer 140 to be formed, and a second pattern layer 150 in which a second transmission region 151 through which light is transmitted and a second shielding region 152 through which light is not transmitted are formed.

The light emitting layer 110 is a layer that generates light when power is applied.

For example, the light emitting layer 110 may be formed in a form in which a plurality of LEDs 112 are disposed on the PCB 111 . Accordingly, when power is applied to the LED 112 , light may be generated. In addition, the LED 112 may change the color of the light generated by the controller 180 . This may be variously changed according to the user's selection.

Alternatively, the light emitting layer 110 may be made of a film light emitting body using organic light emitting diodes (OLEDs).

The diffusion layer 120 is stacked on the light emitting layer 110 , and diffuses light generated from the light emitting layer 110 to transmit the light to the first pattern layer 130 .

The diffusion layer 120 may be made of a transparent resin film. Of course, the present invention is not limited thereto, and as long as light generated from the light emitting layer 110 can be diffused and irradiated to the first pattern layer 130 , it may be formed in any shape.

In the first pattern layer 130 , a first transmission region 131 through which light is transmitted and a first shielding region 132 through which light is not transmitted are formed. That is, a pattern having a specific shape may be formed on the first pattern layer 130 through the first transmission region 131 and the first shielding region 132 .

In addition, the first pattern layer 130 is laminated on the diffusion layer 120 , and the light diffused through the diffusion layer 120 passes through the first transmission region 131 and is irradiated to the foam layer 140 . do.

For example, the first pattern layer 130 may form the first transmissive region 131 through which light is transmitted and the first shielding region 132 through which light is not transmitted through screen printing on a transparent film.

The foam layer 140 is laminated on the first pattern layer 130, is elastically compressible, and is provided with a light-transmitting material. That is, the foam layer 140 is made of a material that can be restored to its original shape after being compressed and deformed by an external force and provided as a cushion layer. In addition, the foam layer 140 is made of a light-transmitting material so that light passing through the first transmission region 131 of the first pattern layer 130 can be transmitted.

For example, the foam layer 140 may be made of a thermoplastic elastomer (Thermo Plastic Elastomer; TPE) material.

The thermoplastic elastomer (TPE) has rubber (elastomer) properties combined with the excellent molding properties of plastics, and has both plastic (thermoplastic) and rubber (elastomer) properties. When cooled again, it becomes an elastic body.

In other words, TPE exhibits elastic properties similar to elastomers, but it is also capable of repeated deformation and restoration possessed by thermoplastic resins, enabling easy thermoplastic molding, short cycle time, low energy consumption, thermal stability, and double or triple molding. Advantages include reduced cost, a combination of two materials (hard-soft components), 100% recyclability, and multiple coloring options including color effects for advanced designs.

In addition, the foam layer 140 serves to adjust the soft feeling, and its thickness can be determined in consideration of both the moldability and the soft feeling. Various foaming methods, for example, through chemical foaming or physical foaming may be used to form the foam layer 140 to a more various thickness, and the thickness may be formed to be about 1 to 2 mm. In order to further strengthen the soft feeling, the thickness of the foam layer 140 may be formed to be 3 to 5 mm.

In the second pattern layer 150 , a second transmission region 151 through which light is transmitted and a second shielding region 152 through which light is not transmitted are formed. That is, a pattern having a specific shape may be formed on the second pattern layer 150 through the second transmission region 151 and the second shielding region 152 .

In addition, the second pattern layer 150 is laminated on the foam layer 140 so that light irradiated through the foam layer 140 passes through the second transmission region 151 and is irradiated to the outside.

For example, the second pattern layer 150 may form the second transmission region 151 through which light is transmitted and the second shielding region 152 through which light is not transmitted through screen printing on a transparent film.

In addition, the second pattern layer 150 may further include a skin layer 170 . The skin layer 170 is an area touched by a user and may be made of a material such as fabric or leather.

In addition, the skin layer 170 is made of a material through which at least a portion of the light passing through the second transmission region 151 of the second pattern layer 150 is transmitted to the outside.

That is, in the skin layer 170 , the light emitted from the light emitting layer 110 is transmitted through the diffusion layer 120 , the first transmission region 131 of the first pattern layer 130 , the foam layer 140 , and The shape of the three-dimensional pattern formed while passing through the second transmission region 151 of the second pattern layer 150 is exposed to the outside, and is made of a transparent or translucent material so that a user can recognize it.

Alternatively, the skin layer 170 may be made of a material capable of adjusting transmittance.

For the transmittance adjustment, a material whose transmittance varies according to the amount of light may be used, or a material whose light transmittance varies according to externally applied pressure or voltage may be used. Alternatively, a specific additive may be added to the skin layer 170 to adjust the desired transmittance.

In addition, the skin layer 170 may be foam-formed so as to feel a softer touch.

And, the light emitting interior material 100 for a vehicle according to an embodiment of the present invention receives data from the sensor layer 160 for recognizing a user's manipulation and the sensor layer 160 to apply power to the light emitting layer 110 or A control unit 180 that controls to block may be further provided.

The sensor layer 160 is provided as a capacitive touch sensor, and may be stacked on any one of the plurality of layers or provided on the skin layer 170 . For example, the sensor layer 160 may be provided between the light emitting layer 110 and the diffusion layer 120 to detect a user's touch on the skin layer 170 . To this end, the sensor layer 160 may be provided as a capacitive touch sensor.

In addition, the controller 180 controls to apply power to the light emitting layer 110 when the sensor layer 160 detects a user's touch, and the user's touch is applied while power is applied to the light emitting layer 110 . When it is sensed, it is possible to control to cut off the power applied to the light emitting layer 110 . Of course, the control command touch method may be set to apply or cut off power to the light emitting layer 110 by changing various conditions such as the number of touches or the contact time. Also, the controller 180 may control the color of the light emitted from the light emitting layer 110 to be changed in various ways.

Furthermore, the first transmissive region 131 of the first pattern layer 130 and the second transmissive region 151 of the second pattern layer 150 may be formed to have a specific color. In this case, the first transmissive region 131 and the second transmissive region 151 may be formed to have different colors. In addition, the plurality of first transmissive regions 131 or the plurality of second transmissive regions 151 may be formed to have different colors.

Through this, various colors may be realized by mixing with the light emitted from the light emitting layer 110 .

The light emitting interior material 100 for a vehicle of the present invention is provided to generate only light or to change a color, so that not only a two-dimensional mood lighting effect can be implemented, but a three-dimensional three-dimensional pattern shape can be implemented. do.

To this end, referring to FIG. 1 , in the second pattern layer 150 , the second transmissive region 151 is formed at a position facing the first shielding region 132 , and the second shielding region 152 . ) is formed at a position facing the first transmission region 131 .

In this way, the light passing area passing through the first pattern layer 130 and the light passing area passing through the second pattern layer 150 cross each other, and as shown in FIG. 2 , the skin layer ( 170) can implement a three-dimensional three-dimensional pattern shape on the surface.

In addition, in order to implement various three-dimensional three-dimensional pattern shapes, the first pattern layer 130 , the second pattern layer 150 , and the diffusion layer 120 may be provided in various shapes.

For example, as shown in FIG. 3 , in the second pattern layer 150 , the second transmission region 151 is larger than the first shielding region 132 of the first pattern layer 130 , and the The second shielding area 152 of the second pattern layer 150 may be formed smaller than the first transmitting area of the first pattern layer 130 .

Alternatively, as shown in FIG. 4 , in the second pattern layer 150 , the second transmission region 151 is smaller than the first shielding region 132 of the first pattern layer 130 , and the The second shielding area 152 of the second pattern layer 150 may be formed to be larger than the first transmitting area 131 of the first pattern layer 130 .

That is, according to the shape of the pattern to be implemented externally, the size of the pattern may be formed as shown in FIG. 3 or FIG. 4 . Alternatively, various types of three-dimensional pattern shapes may be implemented by mixing the pattern sizes shown in FIGS. 3 and 4 .

As another example, in the first pattern layer 130 , a plurality of the first transmissive regions 131 and the first shielding regions 132 are formed to be alternately disposed, and the first transmissive regions 131 are interposed with each other. It can be formed in different thicknesses.

Alternatively, in the second pattern layer 150 , a plurality of the second transmission regions 151 and the second shielding regions 152 are formed and are alternately disposed, and the second transmission regions 151 are different from each other. It may be formed to a thickness.

In this way, when the thicknesses of the first transmission region 131 and the second transmission region 151 are different from each other, the refractive index of light passing through each transmission region is different, so that the brightness of light seen from the outside is different. It can be realized more clearly by implementing a shaded area in a three-dimensional three-dimensional shape.

In addition, the first pattern layer 130 is formed such that the thickness of the first transmission region 131 decreases from the outside to the center, or the second pattern layer 150 has the second transmission region 151 . It may be formed so that the thickness decreases from the outside to the center.

In this way, when the thickness decreases from the outside to the center, as shown in FIG. 2 , a gradation effect in which the color becomes brighter from the outside to the center may be exhibited.

As another example, the three-dimensional effect may be further enhanced by forming a specific pattern on the diffusion layer 120 .

That is, as shown in FIG. 7 , in the diffusion layer 120 , a first pattern 121 having a smaller thickness is formed on one surface on which the first pattern layer 130 is laminated, and the first pattern 121 . may be formed at a position facing the first transmission region 131 .

Alternatively, as shown in FIG. 8 , in the diffusion layer 120 , a second pattern 122 having a smaller thickness is formed on the other surface on which the light emitting layer 110 is stacked, and the second pattern 122 is the second pattern 122 . 1 may be formed to face the shielding area 132 .

Alternatively, as shown in FIG. 9 , both the first pattern 121 and the second pattern 122 may be formed on the diffusion layer 120 .

In this way, the first pattern 121 and the second pattern 122 are additionally formed on the diffusion layer 120 , and regions having different refractive indices of light are added in the diffusion layer 120 to effect a three-dimensional pattern. can be further increased.

Of course, in the drawings, the first pattern 121 is formed at a position facing the first transmission region 131 , and the second pattern 122 is formed at a position facing the first shielding region 132 . All are shown to be formed, but is not limited thereto. That is, the first pattern 121 and the second pattern 122 are formed in a specific region, and various types of three-dimensional patterns can be implemented on the outside passing through the skin layer 170 .

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto. It is clear that the transformation or improvement is possible by the person.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

100: light emitting interior material for vehicle 110: light emitting layer
120: diffusion layer 121: first pattern
122: second pattern 130: first pattern layer
131: first transmission region 132: first shielding region
140: foam layer 150: second pattern layer
151: second transmission region 152: second shielding region
160: sensor layer 170: skin layer
180: control unit

Claims (12)

a light emitting layer that generates light when power is applied;
a diffusion layer laminated on the light emitting layer and transmitting the light generated from the light emitting layer;
a first pattern layer stacked on the diffusion layer and having a first transmitting area through which light is transmitted and a first shielding area through which light is not transmitted;
a foam layer that is laminated on the first pattern layer, is elastically compressible, and transmits light; and
A second pattern layer laminated on the foam layer, in which a second transmission area through which light is transmitted and a second shielding area through which light is not transmitted are formed;
A light emitting interior material for a vehicle in which the first transmissive region and the first shielding region of the first pattern layer are formed in plurality and are alternately disposed, and the first transmissive region is formed to have different thicknesses.
According to claim 1,
The second pattern layer,
The light emitting interior material for a vehicle, wherein the second transmissive region is formed at a position facing the first shielding region, and the second shielding region is formed at a position facing the first transmissive region.
3. The method of claim 2,
The second pattern layer,
The light emitting interior material for a vehicle, characterized in that the second transmissive area is formed to be larger than the first shielding area, and the second shielding area is formed to be smaller than the first transmissive area.
3. The method of claim 2,
The second pattern layer,
The light emitting interior material for a vehicle, wherein the second transmissive area is formed to be smaller than the first shielding area, and the second shielding area is formed to be larger than the first transmissive area.
delete According to claim 1,
The first pattern layer,
The light-emitting interior material for a vehicle, characterized in that the first transmission region is formed to decrease in thickness from the outside to the center.
According to claim 1,
The second pattern layer,
The second transmission region and the second shielding region are formed in plurality and are alternately arranged with each other,
The light emitting interior material for a vehicle, characterized in that the second transmission region is formed to have different thicknesses.
8. The method of claim 7,
The second pattern layer,
The light emitting interior material for a vehicle, characterized in that the second transmission region is formed to decrease in thickness from the outside to the center.
According to claim 1,
The diffusion layer is
A light emitting interior material for a vehicle, characterized in that a first pattern having a smaller thickness is formed on one surface on which the first pattern layer is laminated, and the first pattern is formed at a position facing the first transmission region.
According to claim 1,
The diffusion layer is
A second pattern having a smaller thickness is formed on the other surface on which the light emitting layer is laminated, and the second pattern is formed to face the first shielding area.
According to claim 1,
a sensor layer for sensing a user's touch; and
a control unit receiving data from the sensor layer and controlling to apply or cut off power to the light emitting layer;
Light-emitting interior material for a vehicle further comprising a.
According to claim 1,
a skin layer laminated on the second pattern layer, through which at least a portion of light is transmitted;
Light-emitting interior material for a vehicle further comprising a.

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