Lighting device

Abstract

To provide a lighting device which can improve aesthetic feeling by three-dimensionally providing a surface image.SOLUTION: A lighting device includes: a plurality of light sources 200 placed on a baseboard 100; a resin layer 400 placed on the baseboard 100 and the plurality of light sources 200; a phosphor layer 500 placed on the resin layer 400; and an ink layer 600 placed on the phosphor layer 500. The ink layer 500 includes a first ink layer 610 and a second ink layer 620 having a plurality of protrusions on the first ink layer 610 with an upper surface of the phosphor layer 500 as reference. The plurality of ink layers 600 includes a plurality of concave recesses between the plurality of protrusions, and a height of an upper surface of the second ink layer 620 may be set higher than a height of an upper surface of the first ink layer 610. A surface image can be three-dimensionally provided.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] Embodiments of the invention relate to a surface-emitting lighting device for improving aesthetic perception.

Background Art

[0002] Generally, a light-emitting element, for example, a light-emitting diode (LED), has advantages such as low power consumption, semi-permanent life, fast response speed, safety, and environmental friendliness compared to existing light sources such as fluorescent lamps and incandescent lamps. Such light-emitting diodes are applied to various lighting devices such as various display devices, indoor lights, or outdoor lights. Recently, as a light source for vehicles, lamps employing light-emitting elements have been proposed. Compared with an incandescent lamp, the light-emitting element is advantageous in that it has low power consumption. Since the light-emitting element has a small size, the degree of freedom in the design of the lamp can be increased, and it is also economical due to its semi-permanent life. Such a vehicle lighting device uses a surface light source lighting device, which can provide a three-dimensional feeling and a unique aesthetic perception of the vehicle lamp. Conventional vehicle lighting devices have a strong texture and feeling of rubber or plastic in the unlit state, which reduces the aesthetic perception of the appearance. In addition, conventional vehicle lighting devices are simply distinguished by the degree of color shade in the unlit state and the lit state, which may cause accidents for drivers who cannot recognize this.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Embodiments of the invention can provide a vehicle lighting device for improving the aesthetic perception of the appearance of a product. Embodiments of the invention can form a predetermined pattern on at least one surface of the phosphor layer and the ink layer. It is possible to provide a lighting device having a pattern in which shapes are repeatedly arranged. Embodiments of the invention For example, it is possible to provide a vehicle lighting device for improving a safety function. Embodiments of the invention For example, it is possible to provide a lighting device capable of realizing various lighting images.

Means for Solving the Problem

[0004] The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer can have a height greater than that of the first ink layer with respect to the upper surface of the phosphor layer. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and a plurality of ink layers disposed on at least one surface of the upper surface and a plurality of side surfaces of the phosphor layer. The plurality of ink layers include a first ink layer on the phosphor layer and the above the upper surface of the phosphor layer, the first ink layer can have a height greater than that of the first ink layer. It can be done.

[0005] The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion.

[0006] The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer. The ink layer includes a plurality of convex portions and a plurality of concave portions respectively disposed between adjacent convex portions, and the upper surface of the convex portion can have a height higher than the height of the bottom of the concave portion. The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and a plurality of ink layers disposed on at least one surface of the upper surface and a plurality of side surfaces of the phosphor layer. The plurality of ink layers include a first ink layer on the phosphor layer and the The lighting device according to an embodiment of the invention includes a substrate, a plurality of light sources disposed on the substrate, a resin layer disposed on the substrate and the plurality of light sources, a phosphor layer disposed on the resin layer, and a plurality of ink layers disposed on at least one surface of the upper surface and a plurality of side surfaces of the phosphor layer. The plurality of ink layers include a first ink layer on the phosphor layer and the It includes a second ink layer having a plurality of convex portions on the first ink layer, and the plurality of ink layers include a plurality of concave portions in a concave shape between the plurality of convex portions, and the height of the upper surface of the second ink layer may be arranged higher than the height of the upper surface of the first ink layer.

[0007] According to an embodiment of the invention, the height of the first ink layer can be 1 / 5 or more of the height of the second ink layer. The upper surface of the first ink layer can be parallel to the upper surface of the second ink layer. The first ink layer can include a plurality of ink layers having different heights from each other . The upper surface of the first ink layer may be formed to be inclined with reference to the upper surface of the second ink layer. The upper surface of the first ink layer can include a curved surface. The height of the second ink layer can correspond to the thickness of the phosphor layer. The first ink layer can include a first - 1 ink layer and a first - 2 ink layer having a height smaller than that of the first - 1 ink layer with reference to the upper surface of the phosphor layer. The widths of the first - 1 ink layer, the first - 2 ink layer, and the second ink layer may be different from each other. By the light emitted from the plurality of light sources, the first ink layer embodies light of a first pattern, and the second ink layer embodies light of a second pattern different from the shape of the first pattern. When the luminance of the light is 10 candela or less, the brightness of the region of the first pattern is brighter than the brightness of the region of the second pattern, and when the luminance of the light is 60 candela or more, the brightness of the region of the first pattern can correspond to the brightness of the region of the second pattern.

Advantages of the Invention

[0008] ​​​​​By forming the exposed upper surface of the ink layer to have different heights, it has the effect of being able to embody an image in the appearance of the product when not lit. The embodiments of the invention can provide a three-dimensional image when not lit and change the strength of the three-dimensional effect according to the brightness level of the light when lit, due to the difference in the height of the exposed upper surface of the plurality of ink layers. The embodiments of the invention can provide a three-dimensional image when not lit and change the strength of the three-dimensional effect according to the brightness level of the light when lit, due to the difference in the height of the exposed upper surface of the plurality of ink layers. In the case of the tail mode, the embodiments of the invention can embody a three-dimensional image, and in the case of the stop mode, by embodying it so that the three-dimensional image cannot be seen, it has the effect of guiding the driver to drive safely. In the case of the tail mode, the embodiments of the invention can embody a three-dimensional image, and in the case of the stop mode, by embodying it so that the three-dimensional image cannot be seen, it has the effect of guiding the driver to drive safely. In the case of the tail mode, the embodiments of the invention can embody a three-dimensional image, and in the case of the stop mode, by embodying it so that the three-dimensional image cannot be seen, it has the effect of guiding the driver to drive safely. The embodiments of the invention can embody an image using three or more colors by forming a plurality of ink layers with upper surfaces having different heights from each other. The embodiments of the invention can embody a gradation effect in the image by forming an inclined surface on the upper surface of the ink layer. The embodiments of the invention can embody a gradation effect in the image by forming an inclined surface on the upper surface of the ink layer.

Brief Description of the Drawings

[0009]

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Modes for Carrying Out the Invention

[0010] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the technical idea of the present invention is not limited to some of the embodiments described, and can be embodied in various forms. Within the scope of the technical idea of the present invention, the components between the embodiments can be selectively combined or replaced and used. Also, the terms (including technical and scientific terms) used in the embodiments of the present invention, unless specifically described otherwise, are interpreted as having a meaning generally understood by those having ordinary knowledge in the technical field to which the present invention belongs, and terms generally used as defined in a dictionary are interpreted in consideration of the meaning in the context of the relevant technology. Also, the terms used in the embodiments of the present invention are for the purpose of explaining the embodiments and are not intended to limit the present invention. In this specification, the singular form can include the plural form as well, unless otherwise particularly limited in the description. When described as "at least one ( or one or more) of A and B, C", one or more of all combinations that can be combined with A, B, and C can be included. Also, in the description of the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. can be used. Such terms are for distinguishing the components from other components, and the essence or order of the components is not limited by the terms. When a component is described as "connected", when they are connected or joined, and also includes all cases where there are further other components "connected", "joined" or "connected" between each component. Also, when it is described that it is formed or arranged "above or below" each component, "above or below" includes not only the case where two components are in direct contact, but also the case where one or more further other components are formed or arranged between the two components. Also, when expressed as "above or below", it can include the meaning not only in the upper direction but also in the lower direction with respect to one component. joined or connected. Also, when it is described that it is formed or arranged "above or below" each component, "above or below" includes not only the case where two components are in direct contact, but also the case where one or more further other components are formed or arranged between the two components. Also, when expressed as "above or below", it can include the meaning not only in the upper direction but also in the lower direction with respect to one component. when described as being formed or arranged "above or below" each component, "above or below" includes not only the case where two components are in direct contact, but also the case where one or more further other components are formed or arranged between the two components. Also, when expressed as "above or below", it can include the meaning not only in the upper direction but also in the lower direction with respect to one component. but also the case where one or more further other components are formed or arranged between the two components. Also, when expressed as "above or below", it can include the meaning not only in the upper direction but also in the lower direction with respect to one component. when described as "above or below", it can include the meaning not only in the upper direction but also in the lower direction with respect to one component. when described as "above or below", it can include the meaning not only in the upper direction but also in the lower direction with respect to one component.

[0011] Figure 1 is a perspective view showing an illumination device according to an embodiment, Figure 2 is a cross-sectional view taken along line A - A of Figure 1, Figure 3 is an enlarged view showing a partial state of an ink layer according to an embodiment, and Figures 4 and 5 are drawings showing a state of embodying a pattern according to an embodiment. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape.

[0012] Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. Referring to Figure 1, an illumination device 1000 according to an embodiment of the invention can have a three-dimensional shape, for example, at least one surface can include a rectangular shape. The illumination device 1000 may be formed in a structure capable of multi-sided light emission. For example, light can be emitted from four side surfaces and the upper surface of the illumination device 1000. The illumination device 1000 can also emit light through the lower part. In this case, the substrate 100 can be made of a transparent material. In the above, the illumination device 1000 is illustrated as having at least one surface being rectangular, but it is not limited thereto. Also, the upper surface of the illumination device 100 can be formed in various shapes such as a polygon or a circular shape. It can be done. The pattern P may include a first pattern P1 and a second pattern P2. The pattern P can embody an image in the appearance of the product with different patterns from each other. Such a pattern P may be formed on the side surface of the lighting device 1000, for example, one side surface, two side surfaces or all side surfaces. The first pattern P1 and the second pattern P2 may be alternately arranged in one direction. The second pattern P2 may be alternately arranged between the regions where the first pattern P1 is arranged, and may be repeatedly arranged. The first pattern P1 may be alternately arranged between the regions where the second pattern P2 is arranged, and may be repeatedly arranged. The second pattern P2 may include at least one of a polygonal shape, a circular shape, an elliptical shape, a shape having a curved surface and a corner surface, an irregular shape, a line shape, and a symbol shape such as a cross shape. The outer frame of the pattern P may be formed of the first pattern P1 or / and the second pattern P2, or may be formed of other patterns. The outer frame may be formed of a continuous line pattern or a discontinuous line pattern, and may be connected to at least one of the first pattern P1 and the second pattern P2. Referring to FIG. 2, the lighting device 1000 according to the embodiment includes a substrate 100, a plurality of light sources 200 disposed on the substrate 100, a resin layer 400 disposed on the light sources 200, a phosphor layer 500 disposed on the resin layer 400, and an ink layer 600 disposed on the phosphor layer 500 and having recesses and protrusions. The substrate 100 may include an insulating material or a conductive material. The substrate 100 may be rigid or flexible.

[0013] ​​​​​​​​It can be made of a material. The substrate 100 can be made of a transparent or opaque material. On one surface of the substrate 100, electrode pads of a conductive pattern may be formed.

[0014] The light sources 200 may be arranged in N numbers in the long axis (column) direction of the substrate 100, and M numbers of the light sources 200 may be arranged in the short axis (row) direction of the substrate 100. The N light sources 200 arranged in the long axis direction of the substrate 100 may be formed to have the same or different separation distances from each other. Similarly, the M light sources 200 arranged in the short axis direction of the substrate 100 may be formed to have the same or different separation distances from each other. The separation distance between the light sources 200 can be appropriately designed to effectively embody a surface light source. The N and M may be two or more, and may be the same or different from each other. On one surface of the substrate 100, electrode pads of a conductive pattern may be formed. The N light sources 200 arranged in the long axis direction of the substrate 100 may be formed to have the same or different separation distances from each other. Similarly, the M light sources 200 arranged in the short axis direction of the substrate 100 may be formed to have the same or different separation distances from each other. The separation distance between the light sources 200 can be appropriately designed to effectively embody a surface light source. The N and M may be two or more, and may be the same or different from each other. The light source 200 can include a light emitting element. The light source 200 can emit light of blue, green, red, white, infrared or ultraviolet. The light source 200 can emit blue light in the range of, for example, 420 nm to 470 nm. The light source 200 may be provided from a compound semiconductor. The light source 200 may be provided from, for example, a Group 2-Group 6 or Group 3-Group 5 compound semiconductor. For example, the light source 200 may be provided including at least two or more elements selected from aluminum (Al), gallium (Ga), indium (In), phosphorus (P), arsenic (As), and nitrogen (N). The light source 200 can include a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer. The first and second conductivity type semiconductor layers can be embodied by at least one of a Group 3-Group 5 or Group 2-Group 6 compound semiconductor.

[0015] The light source 200 can include a light emitting element. The light source 200 can emit light of blue, green, red, white, infrared or ultraviolet. The light source 200 can emit blue light in the range of, for example, 420 nm to 470 nm. The light source 200 may be provided from a compound semiconductor. The light source 200 may be provided from, for example, a Group 2-Group 6 or Group 3-Group 5 compound semiconductor. For example, the light source 200 may be provided including at least two or more elements selected from aluminum (Al), gallium (Ga), indium (In), phosphorus (P), arsenic (As), and nitrogen (N). The light source 200 can include a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer. The first and second conductivity type semiconductor layers can be embodied by at least one of a Group 3-Group 5 or Group 2-Group 6 compound semiconductor. The light source 200 can include a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer. It can be made of. The first and second conductivity type semiconductor layers are, for example, In x Al y Ga 1‐x‐y N(0 ≤x≤1, 0≤y≤1, 0≤x + y≤1) and can be made of a semiconductor material having a composition formula. For example, the first and second conductivity type semiconductor layers can include at least one selected from the group including GaN, AlN, AlGaN, I nGaN, InN, InAlGaN, AlInN, AlGaAs, GaP, GaAs, G aAsP, AlGaInP, etc. The first conductivity type semiconductor layer may be an n-type semiconductor layer doped with an n-type dopant such as Si, Ge, Sn, Se, Te, etc. The second conductivity type semiconductor layer may be a p-type semiconductor layer doped with a p-type dopant such as Mg, Zn, C a, Sr, Ba, etc. The active layer can be embodied by a compound semiconductor. The active layer can be embodied by at least one of, for example, group III-V or group II-VI compound semiconductors. When the active layer is embodied in a multi-well structure, the active layer can include a plurality of well layers and a plurality of barrier layers arranged alternately, and can be arranged with a semiconductor material having a composition formula of In Al Ga N(0≤x≤1, 0≤y≤1, 0 ≤x + y≤1). For example, the active layer can include at least one selected from the group including InGaN / GaN, GaN / AlGaN, AlGaN / AlGaN, InGaN / A lGaN, InGaN / InGaN, AlGaAs / GaAs, InGaAs / GaAs x Al y Ga 1‐x‐y N(0≤x≤1, 0≤y≤1, 0 ≤x + y≤1). For example, the active layer can include at least one selected from the group including InGaN / GaN, GaN / AlGaN, AlGaN / AlGaN, InGaN / A lGaN, InGaN / InGaN, AlGaAs / GaAs, InGaAs / GaAs 、InGaN / InGaN、AlGaAs / GaAs、InGaAs / GaAs 、InGaP / GaP、AlInGaP / InGaP、InP / GaAs. Selected.

[0016] On the upper part of the substrate 100, a reflective layer 300 is further formed. The reflective layer 300 serves to guide the light generated from the light source 20 0 upward. The reflective layer 300 can include a white material and so on. The reflective layer 300 can include a resin material. The reflective layer 300 can include silicon , epoxy, etc. The reflective layer 300 may contain a reflective substance, for example, TiO2 .

[0017] The resin layer 400 is disposed on the substrate 100 and the light source 200. The resin layer 400 is formed to cover the upper surface and the side surfaces of the plurality of light sources 200. The resin layer 400 can be made of a transparent resin material , for example, a resin material such as UV (Ultra violet) resin (Resin), silicon or epoxy . The resin layer 400 can have a thickness of 1 mm to 4 mm. The UV resin can use, for example, as the main material, a resin (oligomer type) mainly made of urethane acrylate oligomer . For example, urethane acrylate oligomer, which is a synthetic oligomer , can be used. The main material further contains a monomer mixed with a low-boiling-point diluting reactive monomer such as IBOA (isobornyl acrylate), HBA (Hydroxybutyl Acrylate), HEMA (Hydroxy Metaethyl Acrylate), etc . As an additive, a photoinitiator (for example, 1-hydroxycyclohexyl phenyl-ketone , diphenyl (1-hydroxycyclohexyl phenyl-ketone, Diphenyl)), diphenyl (2, , , etc. can be further included 4,6-Trimethylbenzoylphosphine oxide (Diphwnyl(2,4,6‐trimethylbenzoyl phosphine oxide)) or antioxidants can be mixed. The UV resin can be composed of a composition containing 10 - 21% oligomer, 30 - 63% monomer, and 1.5 - 6% additive. In this case, the monomer can be composed of a mixture of 10 - 21% IBOA (isobornyl Acrylat e), 10 - 21% HBA (Hydroxybutyl Acrylate), and 10 - 21% HEMA (Hydroxy Meta ethyl Acrylate). The additive can be added with 1 - 5% photoinitiator to initiate the photoreaction, and can be composed of a mixture with 0 .5 - 1% antioxidant to improve the yellowing phenomenon. The formation of the resin layer 300 using the above composition is to form a layer with a resin such as UV resin instead of a light guide plate, which enables adjustment of the refractive index and thickness, and can satisfy all of the adhesion characteristics, reliability, and mass production speed using the above composition. The resin layer 400 can further contain a diffusing agent (beads or dispersing agent) inside. The diffusing agent can be spherical, and its size can be in the range of 4μm - 6μm. The shape and size of the diffusing agent are not limited to this. In the lighting device, the resin layer 400 can be formed as one layer or can include two or more layers. The resin layer 400 can include a first resin layer containing no impurities and a second resin layer containing a diffusing agent on the first resin layer. Alternatively, the second resin layer can be formed under the first resin layer. .

[0018] The phosphor layer 500 is formed on the resin layer 400. The phosphor layer 500 is arranged to cover the upper surface and / or side surface of the resin layer 4 00. The phosphor layer 500 can be in contact with the surface of the resin layer 40 0. The phosphor layer 500 can contain a transparent substance . The phosphor layer 500 can contain a transparent insulating substance. The phosphor layer 500 can be made of a silicon material, or a silicon material having different chemical bonds . Silicon is a polymer in which inorganic silicon and organic carbon are bonded, and has the thermal stability, chemical stability, wear resistance, glossiness, etc. of inorganic substances and the reactivity, solubility , elasticity, processability, etc. of organic substances. It can contain general silicon and fluorine silicon with an increased fluorine ratio . Increasing the fluorine ratio of fluorine silicon has the effect of improving moisture resistance . The phosphor layer 500 can include wavelength conversion means for incident light emitted from the light source 200 and providing wavelength-converted light . For example, the phosphor layer 500 can contain at least one selected from the group including phosphors, quantum dots, etc . The phosphor or quantum dot can emit blue, green, or red light . The phosphor is uniformly arranged inside the phosphor layer 500. The phosphor can contain a fluoride-based compound phosphor, for example, at least one of an MGF-based phosphor, a KSF-based phosphor, or a KT F-based phosphor. The phosphors can emit different peak wavelengths, and the light emitted from the light source 200 can be emitted at different yellow and red colors or at different red peak wavelengths. When the phosphor is a red phosphor ... ... ... ... When it is, the red phosphor can have a wavelength range from 610 nm to 650 nm, and the wavelength can have a width of less than 10 nm. The red phosphor can include a fluoride-based phosphor. The fluoride-based phosphor can include at least one of KSF-based red K2SiF6:Mn, K2TiF6:Mn, NaYF4:Mn, NaGdF4:Mn, K3SiF7:Mn. The KSF-based phosphor, for example, can have a composition formula of K2SiF6:Mn, where 1 = a ≤ 2.5, 5 = b ≤ 6.5, and 0.001 = c ≤ 0.1. Also, in order to improve the reliability at high temperature / high humidity, the fluoride-based red phosphor can be coated with a fluoride that does not contain Mn respectively, or can further include an organic coating on the surface of the fluoride coating that does not contain Mn. In the case of the fluoride-based red phosphor as described above, different from other phosphors, a width of less than 10 nm can be realized, so it can be utilized in a high-resolution device. The composition of the phosphor according to the example must basically conform to stoichiometry, and each element can be substituted with other elements within each group on the periodic table. For example, Sr can be substituted with Ba, Ca, Mg, etc. in Group II of alkaline earth metals, and Y can be substituted with Tb, Lu, Sc, Gd, etc. in the lanthanoid series. Also, activators such as Eu can be substituted with Ce, Tb, Pr, Er, Yb, etc. according to the desired energy level, and an activator alone or an inert agent, etc. can be further added for property modification. and the wavelength can have a width of less than 10 nm. The red phosphor can include a fluoride-based phosphor. (fluoride) - based phosphor. KSF - based red K2SiF6:Mn 4+ , K2TiF6:Mn 4+ , NaYF4:Mn 4+ , NaGdF4:M n 4+ , K3SiF7:Mn 4+ of at least one. The KSF - based phosphor, for example, K a Si 1‐c F b :Mn 4+ c can have a composition formula, where the a satisfies 1 = a ≤ 2.5, the b satisfies 5 = b ≤ 6.5, and the c satisfies 0.001 = c ≤ 0.1. Also, the fluoride-based red phosphor is coated with a fluoride that does not contain Mn respectively, or the surface of the phosphor or the surface of the fluoride coating that does not contain Mn can further include an organic coating in order to improve the reliability at high temperature / high humidity. In the case of the fluoride-based red phosphor as described above, different from other phosphors, a width of less than 10 nm can be realized, so it can be utilized in a high-resolution device. The composition of the phosphor according to the example must basically conform to stoichiometry, and each element can be substituted with other elements within each group on the periodic table. For example, Sr can be substituted with Ba, Ca, Mg, etc. in Group II of alkaline earth metals, and Y can be substituted with Tb, Lu, Sc, Gd, etc. in the lanthanoid series. Also, activators such as Eu can be substituted with Ce, Tb, Pr, Er, Yb, etc. according to the desired energy level, and an activator alone or an inert agent, etc. can be further added for property modification. For example, Sr can be substituted with Ba, Ca, Mg, etc. in Group II of alkaline earth metals, and Y can be substituted with Tb, Lu, Sc, Gd, etc. in the lanthanoid series. Also, activators such as Eu can be substituted with Ce, Tb, Pr, Er, Yb, etc. according to the desired energy level, and an activator alone or an inert agent, etc. can be further added for property modification. Also, activators such as Eu can be substituted with Ce, Tb, Pr, Er, Yb, etc. according to the desired energy level, and an activator alone or an inert agent, etc. can be further added for property modification. For example, Sr can be substituted with Ba, Ca, Mg, etc. in Group II of alkaline earth metals, and Y can be substituted with Tb, Lu, Sc, Gd, etc. in the lanthanoid series. Also, activators such as Eu can be substituted with Ce, Tb, Pr, Er, Yb, etc. according to the desired energy level, and an activator alone or an inert agent, etc. can be further added for property modification. It may be applicable. The quantum dots include II-IV compounds or III-V group compound semiconductors and can emit red light. The quantum dots are, for example, ZnS, ZnS e, ZnTe, CdS, CdSe, CdTe, GaN, GaP, GaAs, GaSb, I nP, InAs, In, Sb, AlS, AlP, AlAs, PbS, PbSe, Ge, S i, CuInS2, CuInSe2, etc. and combinations thereof can be used

[0019] The ink layer 600 is disposed on the phosphor layer 500. The ink layer 600 can contain red ink , that is, ink powder. When the light source 200 is not lit , the outer surface of the lighting device 1000 appears red. The ink layer 600 appears red whether the light source 200 is lit or not. Such a lighting device can prevent the heterogeneous feeling caused by the surface color vehicle . The ink layer 600 is formed of a resin material and contains red ink at a certain weight percentage. For example, the red ink can be contained in the ink layer 600 at 2 wt% to 10 wt%. The ink layer 600 is configured to contain, for example, red ink , but can contain ink powders of various colors such as other colors, for example, yellow or blue . Such ink powders having such colors can provide the surface color with the ink color when lit or unlit, or reduce the difference in the surface color when lit or unlit .

[0020] On the upper surface of the ink layer 600, a plurality of ink layers 600 having different heights from each other can be included to embody the pattern P . The ink layer 600 can include concave portions and convex portions ​It can be cut. The ink layer 600 can include a first ink layer 610 and a second ink layer 620. . The first ink layer 610 can be disposed on the phosphor layer 500 or can contact the surface of the phosphor layer 5 00. The second ink layer 620 is disposed on the first ink layer 61 0. The second ink layer 620 can include a pattern having a predetermined shape on the first ink layer 610. The upper surface area of the second ink layer 620 may be smaller than the lower surface area of the first ink layer 610. The first ink layer 610 can include a region having a recess. The recess may be a groove or a recess formed between protrusions. The second ink layer 620 may be a region where protrusions are formed. The protrusions may be connected to each other or may be disposed outside the recess. The recesses may be arranged in a plurality or may be disposed inside the protrusions . The recesses may be respectively disposed between a plurality of protrusions. The protrusions are structures protruding toward the upper surface of the ink layer 600, and the recesses can have a structure recessed from the upper surface to the lower surface of the ink layer 600. The first ink layer 610 may be a layer for embodying a first pattern P1. The first pattern P1 can include a plurality of recesses. The first pattern P1 can include a plurality of recesses spaced apart from each other. The second ink layer 620 may be a layer for embodying a second pattern P2. The second pattern P2 can include at least one protrusion or protrusions connected to each other. The second pattern P2 may be disposed between the first patterns P1 or may be disposed between the protrusions. The first ink layer 610 and the second ink layer 620 may be layers of the same material or different materials. The second pattern P2 layer 620 may be a layer of the same material or different materials.​​​​ is disposed on the upper surface of the resin layer 400 and may not be formed on the side surface. The second pattern P2 or the second ink layer 620 is disposed on the upper surface of the phosphor layer 500 and may not be formed on the side surface . The second pattern P2 or the second ink layer 620 may not be formed on the side surface of the phosphor layer 500 or the resin layer 400. The side surface of the ink layer 600 may be formed on a flat plane without the convex portion. This is because the three-dimensional image on the side surface of the phosphor layer 500 or the resin layer 400 does not give a large effect when viewed from the outside .

[0021] As shown in FIG. 3, the height h1 of the upper surface of the first ink layer 610 may be lower than the height h2 of the upper surface of the second ink layer 620. The height h1 of the upper surface of the first ink layer 610 may be 1 / 5 or more of the height h2 of the upper surface of the second ink layer 620 and may be smaller than the height h2. The height h1 of the first ink layer 610 can have a minimum of 0.2 mm or more. The height h2 of the second ink layer 620 can have a height of 1 mm or less, for example, 0.5 mm to 1 mm. When the height h1 of the first ink layer 610 is less than 1 / 5 of the height h2 of the second ink layer 620, the height h1 of the first ink layer 610 is very low, so it is difficult to represent red when viewed from the outside. The above-mentioned height h1 of the first ink layer 610 may be the height from the lower surface of the ink layer 600 to the upper surface of the concave portion . The height h2 of the upper surface of the second ink layer 620 may be the height from the lower surface of the ink layer 600 to the upper surface of the convex portion. The height h1 of the first ink layer 610 may be the height of the bottom of the concave portion . The height h2 of the second ink layer 620 may be the height of the upper surface of the convex portion . The height h1 may be the minimum thickness in the ink layer 600 and may be high . . from the lower surface of the ink layer 600 to the upper surface of the convex portion. ​​​​ h2 may be the maximum thickness in the ink layer 600.

[0022] The height h2 of the upper surface of the second ink layer 620 can correspond to the height h3 of the phosphor layer 500. The height h3 of the phosphor layer 500 can be 0.5 mm or more, for example, in the range of 0.5 mm to 1 mm. Therefore, the height h1 of the first ink layer 610 may be formed to be 1 / 5 or more of the height h3 of the phosphor layer 500. In the drawing, the width of the first ink layer 610 is formed smaller than the width of the second ink layer 620, but this is only an example for embodying the pattern P according to the embodiment, and it can be formed in various widths according to the shape of the pattern P. That is, the width of the concave portion in the horizontal direction may be larger than the width of the convex portion, or conversely, the width of the concave portion may be smaller than the width of the convex portion. The upper surface 610a of the first ink layer 610 may be arranged parallel to the lower surface of the first ink layer 610 or the lower surface of the ink layer 600. The upper surface 610a of the first ink layer 610 may be arranged parallel to the upper surface 620a of the second ink layer 620. The upper surface of the concave portion can be parallel to the upper surface of the convex portion. By forming the upper surface 610a of the first ink layer 610 into a flat structure, the light emitted through the first ink layer 610 can have the same luminance. The upper surface of the phosphor layer 500 can be parallel to the lower surface of the ink layer 600. The upper surface of the phosphor layer 500 can be in contact with the lower surface of the ink layer 600. By providing the exposed upper surfaces of the plurality of ink layers 610 and 620 to have different heights, a three-dimensional image can be provided when not lit, and the three-dimensional effect can be adjusted in strength according to the luminance level of the light when lit. This is only an example for embodying the pattern P according to the embodiment, and it can be formed in various widths according to the shape of the pattern P. That is, the width of the concave portion in the horizontal direction may be larger than the width of the convex portion, or conversely, the width of the concave portion may be smaller than the width of the convex portion. This is only an example for embodying the pattern P according to the embodiment, and it can be formed in various widths according to the shape of the pattern P. That is, the width of the concave portion in the horizontal direction may be larger than the width of the convex portion, or conversely, the width of the concave portion may be smaller than the width of the convex portion. The width of the concave portion in the horizontal direction may be larger than the width of the convex portion, or conversely, the width of the concave portion may be smaller than the width of the convex portion. The upper surface 610a of the first ink layer 610 may be arranged parallel to the lower surface of the first ink layer 610 or the lower surface of the ink layer 600. The upper surface 610a of the first ink layer 610 may be arranged parallel to the lower surface of the first ink layer 610 or the lower surface of the ink layer 600. The upper surface 610a of the first ink layer 610 may be arranged parallel to the upper surface 620a of the second ink layer 620. The upper surface of the concave portion can be parallel to the upper surface of the convex portion. By forming the upper surface 610a of the first ink layer 610 into a flat structure, the light emitted through the first ink layer 610 can have the same luminance. By forming the upper surface 610a of the first ink layer 610 into a flat structure, the light emitted through the first ink layer 610 can have the same luminance. The upper surface of the phosphor layer 500 can be parallel to the lower surface of the ink layer 600. The upper surface of the phosphor layer 500 can be parallel to the lower surface of the ink layer 600. The upper surface of the phosphor layer 500 can be in contact with the lower surface of the ink layer 600. By providing the exposed upper surfaces of the plurality of ink layers 610 and 620 to have different heights, a three-dimensional image can be provided when not lit, and the three-dimensional effect can be adjusted in strength according to the luminance level of the light when lit. The upper surface of the phosphor layer 500 can be in contact with the lower surface of the ink layer 600. By providing the exposed upper surfaces of the plurality of ink layers 610 and 620 to have different heights, a three-dimensional image can be provided when not lit, and the three-dimensional effect can be adjusted in strength according to the luminance level of the light when lit.

[0023] Referring to FIGS. 4 and 5, the first ink layer 610 can include an area for forming the first pattern P1. The second ink layer 620 may be an area for forming the second pattern P2. When the light source 200 is turned on, the first pattern P1 and the second pattern P 2 will embody a red image. Since the height of the first ink layer 610 is lower than the height of the upper surface of the second ink layer 6 20, the amount of light blocked from the phosphor layer 500 is reduced. That is, the higher the height of the ink layer 600, the more light is blocked. That is, the thicker the area of the ink layer 600, the more light is blocked. As a result, the luminance of the light emitted through the concave portion of the first ink layer 610 is higher than the luminance of the light emitted through the second ink layer 620, i.e., the convex portion. That is, the luminance of the light emitted from the concave portion of the first ink layer 610 is provided as a bright red pattern, and the luminance of the second ink layer 620 is provided as a red pattern darker than the luminance of the first ink layer 610. The first pattern P1 and the second pattern P2 are provided as a red image having a luminance difference when lit. When the luminance of the light emitted from the light source 200 is at a low level, for example, 10 candela or less, the boundary between the first pattern P1 and the second pattern P2 is clearly visible or distinguishable. Here, 10 candela is the luminance range of the light emitted in the tail mode. Also, when the luminance of the light emitted from the light source 200 is at a high level, for example, 60 candela or more, the boundary between the first pattern P1 and the second pattern P2 cannot be seen or distinguished. Here, 60 candela is the luminance range of the light emitted in the stop mode. The difference in brightness between the light emitted through the concave portion and the second ink layer 620 at the above-mentioned low level is, at the above-mentioned high level, the brightness of the light emitted through the concave portion and the second ink layer 620 is, and the difference in brightness between the light emitted through the concave portion and the second ink layer 620 at the above-mentioned high level is​ It may also be larger than the difference. The first driving mode has a large luminance difference at the boundary between the first pattern P1 and the second pattern P2 and the second driving mode may have a small luminance difference at the boundary between the first pattern P1 and the second pattern P2. That is, in the case of the tail mode, since the boundary between the first pattern P1 and the second pattern P2 is clearly distinguished, the lighting image is provided in the tail mode. In the case of the stop mode, since the lighting image is not embodied, only red can be shown to the driver without an image, and safe driving can be induced. That is, in the case of the tail mode, since the boundary between the first pattern P1 and the second pattern P2 is clearly distinguished, the lighting image is provided in the tail mode. In the case of the stop mode, since the lighting image is not embodied, only red can be shown to the driver without an image, and safe driving can be induced. and the second pattern P2. That is, in the case of the tail mode, since the boundary between the first pattern P1 and the second pattern P2 is clearly distinguished, the lighting image is provided in the tail mode. In the case of the stop mode, since the lighting image is not embodied, only red can be shown to the driver without an image, and safe driving can be induced. In the case of the stop mode, since the lighting image is not embodied, only red can be shown to the driver without an image, and safe driving can be induced. In the case of the stop mode, since the lighting image is not embodied, only red can be shown to the driver without an image, and safe driving can be induced.

[0024] FIGS. 6 to 8 are cross-sectional views showing modified examples of the ink layer of the invention. The modified example may selectively include the description of the embodiment described above. FIGS. 6 to 8 are cross-sectional views showing modified examples of the ink layer of the invention. The modified example may selectively include the description of the embodiment described above.

[0025] Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. Referring to FIG. 6, the ink layer 600 according to the modified example of the embodiment may have a structure including a concave portion and a convex portion. The ink layer 600 may include a first ink layer 610 and a second ink layer 620. The height h1 of the lowest region in the region of the first ink layer 610 may be smaller than the height h2 of the upper surface of the second ink layer 620. The upper surface 610a of the C layer 610, that is, the bottom of the concave portion, can be inclined with respect to the upper surface 620a of the second ink layer 620. The upper surface 610a of the first ink layer 610 can include at least one inclined surface. The upper surface 610a of the first ink layer 610 may be formed such that two inclined surfaces form a certain angle or are symmetric about the center of the concave portion. The inclined surface can be inclined at a certain angle with respect to the upper surface 620a of the second ink layer 620. The upper surface 610a of the first ink layer 610, that is, the bottom of the concave portion, can have a structure that becomes deeper toward the center of the first ink layer 610 or the center of the concave portion. In the above description, although the upper surface 610a of the first ink layer 610 or the bottom of each concave portion is illustrated as being composed of two inclined surfaces, it can have one inclined surface or three or more inclined surfaces. By forming the upper surface 610a of the first ink layer 610 into an inclined surface, a gradation effect can be embodied in the illumination image. As a result, the overall image can be embodied more softly, and the aesthetic sense can be improved. The upper surface 610a of the first ink layer 610 can include at least one inclined surface. The upper surface 610a of the first ink layer 610 may be formed such that two inclined surfaces form a certain angle or are symmetric about the center of the concave portion. The inclined surface can be inclined at a certain angle with respect to the upper surface 620a of the second ink layer 620. The upper surface 610a of the first ink layer 610, that is, the bottom of the concave portion, can have a structure that becomes deeper toward the center of the first ink layer 610 or the center of the concave portion. In the above description, although the upper surface 610a of the first ink layer 610 or the bottom of each concave portion is illustrated as being composed of two inclined surfaces, it can have one inclined surface or three or more inclined surfaces. By forming the upper surface 610a of the first ink layer 610 into an inclined surface, a gradation effect can be embodied in the illumination image. As a result, the overall image can be embodied more softly, and the aesthetic sense can be improved. The height h2 of the upper surface of the second ink layer 620 can be 1 mm or less, for example, 0.5 mm to 1 mm. When the height h1 of the first ink layer 610 is less than 1 / 5 of the height h2 of the upper surface of the second ink layer 620, when the height of the first ink layer 610 is very low and viewed from the outside, it becomes difficult to express red. The height h2 of the upper surface of the second ink layer 620 may be the same as the height h3 of the phosphor layer 500. The height h3 of the phosphor layer 500 can be 0.5 mm or more, for example, 0.5 mm to 1 mm. Therefore, the height h1 of the first ink layer 610 may be formed to be 1 / 5 or more of the height h3 of the phosphor layer 500. In the drawing, the width of the first ink layer 610 is formed to be smaller than the width of the second ink layer 620, but this is a pattern according to the embodiment. By forming the upper surface 610a of the first ink layer 610 into an inclined surface, a gradation effect can be embodied in the illumination image. As a result, the overall image can be embodied more softly, and the aesthetic sense can be improved. The height h2 of the upper surface of the second ink layer 620 can be 1 mm or less, for example, 0.5 mm to 1 mm. When the height h1 of the first ink layer 610 is less than 1 / 5 of the height h2 of the upper surface of the second ink layer 620, when the height of the first ink layer 610 is very low and viewed from the outside, it becomes difficult to express red. The height h2 of the upper surface of the second ink layer 620 may be the same as the height h3 of the phosphor layer 500. The height h3 of the phosphor layer 500 can be 0.5 mm or more, for example, 0.5 mm to 1 mm. Therefore, the height h1 of the first ink layer 610 may be formed to be 1 / 5 or more of the height h3 of the phosphor layer 500. In the drawing, the width of the first ink layer 610 is formed to be smaller than the width of the second ink layer 620, but this is a pattern according to the embodiment. In the drawing, the width of the first ink layer 610 is formed to be smaller than the width of the second ink layer 620, but this is a pattern according to the embodiment. In the drawing, the width of the first ink layer 610 is formed to be smaller than the width of the second ink layer 620, but this is a pattern according to the embodiment. This is just an example for embodying a turn, and it can be set to various widths according to the shape of the pattern. It is possible.

[0026] As shown in FIG. 7, the ink layer 600 according to the modification of the invention can have a structure including concave portions and convex portions. The ink layer 600 can include a first ink layer 610 and a second ink layer 620. The height h1 of the upper surface of the first ink layer 610 may be lower than the height h2 of the upper surface of the second ink layer 620. The height h1 of the lowest region in the first ink layer 610 can be 1 / 5 or more of the height h2 of the upper surface of the second ink layer 620. The height h1 of the first ink layer 610 can be at least 0.2 mm or more. The height h1 of the first ink layer 610 may be formed higher as it goes toward the second ink layer 620. The height h1 of the first ink layer 610 may be such that the region adjacent to the convex portion is the highest and the region farther from the convex portion is smaller. One end or edge of the first ink layer 610 can have the same height as the height of the upper surface of the second ink layer 620. The upper surface 610a of the first ink layer 610 can include a surface inclined with the upper surface 620a of the second ink layer 620 or a curved surface having a curvature. The upper surface 610a of the first ink layer 610 can include at least one or more curved surfaces. The straight line connecting from the high point to the low point of the ink layer 600 can be inclined at a certain angle. The upper surface 610a or the bottom of the concave portion of the first ink layer 610 can have a structure that becomes deeper as it goes toward the center of the first ink layer 610, that is, the center of the concave portion. The upper surface 610a can include a concave curved surface. The shape of the curved surface can include a hemispherical shape. By forming the upper surface 610a of the first ink layer 610 into a curved surface, a gradation effect is provided to the image of the illumination. ​ It can appear. This can more softly embody the overall image and improve the aesthetic sense.

[0027] The height h2 of the second ink layer 620 can be 1 mm or less, for example, 0.5 mm to 1 mm. If the height h1 of the first ink layer 610 is less than 1 / 5 of the height h2 of the second ink layer 620, when the height of the first ink layer 610 is very low and viewed from the outside, it is difficult to express red. The height h2 of the second ink layer 620 can correspond to the height h3 of the phosphor layer 500. The height h3 of the phosphor layer 500 can be 0.5 mm or more, for example, 0.5 mm to 1 mm. Therefore, the height h1 of the first ink layer 610 may be formed to be 1 / 5 or more of the height h3 of the phosphor layer 500. In the drawings, the width of the first ink layer 610 is formed smaller than the width of the second ink layer 620, but this is only an example for embodying the pattern according to the embodiment, and the width range can be set variously according to the shape of the pattern.

[0028] As shown in FIG. 8, the ink layer 600 according to the modified example of the embodiment can have a structure including concave portions and convex portions. The ink layer 600 can include a first ink layer 610 and a second ink layer 620. The first ink layer 610 can include a plurality of layers having different heights. For example, the first ink layer 610 can include a first - 1 ink layer 611 and a first - 2 ink layer 612. The first - 1 ink layer 611 may be disposed between the second ink layer 620 and the first - 2 ink layer 612, or may be disposed adjacent to at least one of the second ink layer 620 and the first - 2 ink layer 612. ​​​​​​​12 is disposed between the first first ink layer 611 and the second ink layer 620, or is disposed so as to be adjacent to at least one of the second ink layer 620 and the first second ink layer 612. The first ink layer 610 may include a plurality of recesses. The first ink layer 610 may include recesses having a stepped structure. The first ink layer 610 may have a stepped structure in the horizontal direction. The height h11 of the upper surface of the first first ink layer 611 may be formed higher than the height h12 of the upper surface of the first second ink layer 612. The height h11 of the upper surface of the first first ink layer 611 may be formed lower than the height h2 of the upper surface of the second ink layer 620. The height h12 of the upper surface of the first second ink layer 612 may be formed to be at least 0.2 mm. As a result, the ink layer 600 has three layers, for example, the first first ink layer 611, the first second ink layer 612, and the second ink layer 620, and an image can be realized by three colors. The widths of the first first ink layer 611 and the first second ink layer 620 in the horizontal direction may be formed to be the same or different. The widths of the first first ink layer 611 and the first second ink layer 612 in the horizontal direction may be variously formed according to the shape of the pattern. The first first ink layer 611 and the first second ink layer 612 may be disposed in the recesses. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the second ink layer 612. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the first second ink layer 612. When the first first ink layer 611 is the first recess and the first second ink layer 612 is the second recess, the upper surface of the first recess is parallel to the upper surface of the second recess. The first ink layer 610 can include a plurality of recesses. The first ink layer 610 can include recesses having a stepped structure. The first ink layer 610 can have a stepped structure in the horizontal direction. The height h11 of the upper surface of the first first ink layer 611 may be formed higher than the height h12 of the upper surface of the first second ink layer 612. The height h11 of the upper surface of the first first ink layer 611 may be formed lower than the height h2 of the upper surface of the second ink layer 620. The height h12 of the upper surface of the first second ink layer 612 may be formed to be at least 0.2 mm. As a result, the ink layer 600 has three layers, for example, the first first ink layer 611, the first second ink layer 612, and the second ink layer 620, and an image can be realized by three colors. The widths of the first first ink layer 611 and the first second ink layer 620 in the horizontal direction may be formed to be the same or different. The widths of the first first ink layer 611 and the first second ink layer 612 in the horizontal direction may be variously formed according to the shape of the pattern. The first first ink layer 611 and the first second ink layer 612 may be disposed in the recesses. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the second ink layer 612. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the first second ink layer 612. When the first first ink layer 611 is the first recess and the first second ink layer 612 is the second recess, the upper surface of the first recess is parallel to the upper surface of the second recess. The first ink layer 610 can include a plurality of recesses. The first ink layer 610 can include recesses having a stepped structure. The first ink layer 610 can have a stepped structure in the horizontal direction. The height h11 of the upper surface of the first first ink layer 611 may be formed higher than the height h12 of the upper surface of the first second ink layer 612. The height h11 of the upper surface of the first first ink layer 611 may be formed lower than the height h2 of the upper surface of the second ink layer 620. The height h12 of the upper surface of the first second ink layer 612 may be formed to be at least 0.2 mm. As a result, the ink layer 600 has three layers, for example, the first first ink layer 611, the first second ink layer 612, and the second ink layer 620, and an image can be realized by three colors. The widths of the first first ink layer 611 and the first second ink layer 620 in the horizontal direction may be formed to be the same or different. The widths of the first first ink layer 611 and the first second ink layer 612 in the horizontal direction may be variously formed according to the shape of the pattern. The first first ink layer 611 and the first second ink layer 612 may be disposed in the recesses. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the second ink layer 612. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the first second ink layer 612. When the first first ink layer 611 is the first recess and the first second ink layer 612 is the second recess, the upper surface of the first recess is parallel to the upper surface of the second recess.

[0029] The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the second ink layer 612. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the first second ink layer 612. When the first first ink layer 611 is the first recess and the first second ink layer 612 is the second recess, the upper surface of the first recess is parallel to the upper surface of the second recess. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the first second ink layer 612. When the first first ink layer 611 is the first recess and the first second ink layer 612 is the second recess, the upper surface of the first recess is parallel to the upper surface of the second recess. The first first ink layer 611 is the first recess, and when the first second ink layer 612 is the second recess, the upper surface of the first recess is parallel to the upper surface of the second recess. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the second ink layer 612. The upper surface of the first first ink layer 611 may be formed parallel to the upper surface of the first second ink layer 612. When the first first ink layer 611 is the first recess and the first second ink layer 612 is the second recess, the upper surface of the first recess is parallel to the upper surface of the second recess. It can be done. The upper surfaces of the first concave portion and the second concave portion can be parallel to the upper surface of the convex portion. The concave portion can include a plurality of bottom surfaces having different heights from each other.

[0030] The upper surface of the first ink layer 611 may be disposed at a position higher than the upper surface of the first ink layer 612. The upper surface of the first ink layer 611 may be formed at a position lower than the upper surface of the second ink layer 620. The height h2 of the upper surface of the second ink layer 620 can be 1 mm or less, for example, 0 .5 mm to 1 mm. When the height h12 of the upper surface of the first ink layer 612 is less than 1 / 5 of the height h2 of the upper surface of the second ink layer 620, when the height of the upper surface of the first ink layer 612 is very low and viewed from the outside, it becomes difficult to express red. The height h2 of the upper surface of the second ink layer 620 may be the same as the height h3 of the phosphor layer 500. The height h3 or thickness of the phosphor layer 500 can be 0.5 mm or more, for example, 0.5 mm to 1 mm. Therefore, the height h12 of the upper surface of the first ink layer 612 may be formed to be 1 / 5 or more of the height h3 of the phosphor layer 500. In the drawing, the width of the first ink layer 610 is formed smaller than the width of the second ink layer 620, but this is only an example for embodying the pattern according to the embodiment, and it can be set to various widths according to the shape of the pattern. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. 620 may be the same as the height h3 of the phosphor layer 500. The height h3 or thickness of the phosphor layer 500 can be 0.5 mm or more, for example, 0.5 mm to 1 mm. Therefore, the height h12 of the upper surface of the first ink layer 612 may be formed to be 1 / 5 or more of the height h3 of the phosphor layer 500. In the drawing, the width of the first ink layer 610 is formed smaller than the width of the second ink layer 620, but this is only an example for embodying the pattern according to the embodiment, and it can be set to various widths according to the shape of the pattern. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. Thus, the height h12 of the upper surface of the first ink layer 612 may be formed to be 1 / 5 or more of the height h3 of the phosphor layer 500. In the drawing, the width of the first ink layer 610 is formed smaller than the width of the second ink layer 620, but this is only an example for embodying the pattern according to the embodiment, and it can be set to various widths according to the shape of the pattern. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. In the drawing, the width of the first ink layer 610 is formed smaller than the width of the second ink layer 620, but this is only an example for embodying the pattern according to the embodiment, and it can be set to various widths according to the shape of the pattern. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. This is only an example for embodying the pattern according to the embodiment, and it can be set to various widths according to the shape of the pattern. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. This is only an example for embodying the pattern according to the embodiment, and it can be set to various widths according to the shape of the pattern. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. The modified example has an effect of effectively embodying more various patterns so as to embody three or more different colors from each other. Or, by arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. By arranging layers having two or three or more different inks at different heights from each other in the vertical direction, a three-dimensional effect of an image having a predetermined shape can be given. Here, the ink powders of the first and second ink layers may be the same or different. The image of the outer frame can be provided as a three-dimensional image by using a stepped structure or a difference in depth. The ink powders in the first and second layers of the first ink layer may be the same or different, and the entire surface image can be provided as a three-dimensional image by using a stepped structure or a difference in depth. When the ink powders in the first and second ink layers are of the same material, the ink layer can include a concave portion having a first height and a convex portion convex outside the concave portion.

[0031] FIG. 9 is a schematic perspective view showing a rear lamp for a vehicle including a lighting device according to an embodiment of the invention. As shown in FIG. 9, the vehicle lamp can include a rear panel 2000 and a plurality of lighting devices 1000 coupled to the rear panel 2 000. Here, the lighting device 10 00 may be the module disclosed above. The lighting device 1000 is installed in the tail-brake lamp area and the turn signal lamp area. The lighting device 1000 arranged in the tail-brake lamp area can serve as a tail lamp that informs the following vehicle of its position during night driving. Also, the lighting device 1000 can serve as a stop indicator lamp that informs the following vehicle that its own vehicle is decelerating. The lighting device 1000 arranged in the turn signal lamp area is for a signal function and functions to inform other vehicles of the direction in which the vehicle is about to travel. A connection portion may be formed on the rear panel 2000 so that the lighting device 1000 is connected thereto. The connection portion may be a separate configuration from the rear panel or may be a configuration integrally formed with the rear panel 2000. The lighting device 1000 coupled to the rear panel 2000 is coupled to the rear panel or the connection portion in a sliding manner. ​​​It may be. For example, in the lighting device 1000, the terminals of the substrate are exposed, and the corresponding rear panel 2000 or the connection part may be formed with contact terminals that are electrically connected to the terminals of the substrate. In the above, the vehicle lamp has been described by taking the rear lamp of the vehicle as an example, but it is not limited to this, and it can include other lamp structures such as the front lamp or mood lamp of the vehicle. ​

Claims

1. A substrate; A plurality of light sources disposed on the substrate; a resin layer disposed on the substrate and the plurality of light sources; a phosphor layer disposed on the entire upper surface and side surfaces of the resin layer; an ink layer disposed over the entire top surface of the phosphor layer; the ink layer includes a first ink layer disposed on the entire upper surface of the phosphor layer, and a second ink layer having an upper surface height higher than an upper surface height of the first ink layer with respect to the upper surface of the phosphor layer; the first ink layer includes a first ink layer disposed on the entire upper surface of the phosphor layer, and a second ink layer having an upper surface height that is smaller than an upper surface height of the first ink layer based on the upper surface of the phosphor layer; the ink layer has a plurality of recesses recessed from an upper surface of the ink layer toward a lower surface, The plurality of recesses vertically overlap the phosphor layer.

2. The lighting device according to claim 1 , wherein a height of the first ink layer at a lower surface of the ink layer is equal to or greater than ⅕ of a height from the lower surface of the ink layer to an upper surface of the second ink layer.

3. The lighting device according to claim 2 , wherein the upper surface of the ink layer has an inclined surface or a curved surface with respect to the upper surface of the second ink layer.

4. The lighting device according to claim 2 , wherein the ink layer extends onto a side surface of the phosphor layer disposed on a side surface of the resin layer.

5. the thickness of the ink layer is the same as the thickness of the phosphor layer; The lighting device according to claim 1 , wherein the thickness of the ink layer is a height from a lower surface of the ink layer to an upper end of the second ink layer.

6. 6. The lighting device according to claim 1, wherein widths of the 1-1 ink layer, the 1-2 ink layer, and the 2nd ink layer are different from each other.

7. the first ink layer embodies a first pattern of light by light emitted from the plurality of light sources, and the second ink layer embodies a second pattern of light different from that of the first ink layer; When the luminance of the light from the lighting device is 10 candelas or less, the brightness of the area of ​​the first pattern is brighter than the brightness of the area of ​​the second pattern; The lighting device according to claim 1 , wherein when the luminance of the light from the lighting device is 60 candelas or more, the brightness of the area of ​​the first pattern corresponds to the brightness of the area of ​​the second pattern.

8. The lighting device according to claim 1 , wherein the first ink layer and the second ink layer are formed of the same material.

9. A substrate; A plurality of light sources disposed on the substrate; a resin layer disposed on the substrate and the plurality of light sources; a phosphor layer disposed on the entire upper surface and side surfaces of the resin layer; an ink layer disposed on the entire top surface and a plurality of side surfaces of the phosphor layer; the ink layer includes a first ink layer disposed on an upper surface and a plurality of side surfaces of the phosphor layer, and a second ink layer disposed between regions of the first ink layer; the first ink layer includes a region whose height varies from a center of the ink layer to an upper end of the second ink layer based on an upper surface of the phosphor layer; the ink layer has a plurality of recesses recessed from an upper surface of the ink layer toward a lower surface, The plurality of recesses vertically overlap the phosphor layer.

10. a height of the first ink layer on the upper surface of the phosphor layer is equal to or greater than 1 / 5 of a height of the second ink layer on the upper surface of the phosphor layer; The lighting device according to claim 9 , wherein a side surface of the ink layer extends to a side surface of the phosphor layer and has a flat surface.

11. The lighting device according to claim 9 or 10, wherein an area of ​​an upper surface of the second ink layer is smaller than an area of ​​a lower surface of the first ink layer.

12. The lighting device according to claim 9 , wherein the first ink layer and the second ink layer are formed of the same material.

13. A lighting device as described in any one of claims 9 to 12, wherein the multiple recesses in the ink layer are spaced apart from the lower surface of the ink layer.

14. the first ink layer is disposed on an upper surface of the phosphor layer; the second ink layer is disposed between the regions of the first ink layer; The lighting device of claim 13 , wherein the first ink layer is disposed between the plurality of recesses and the phosphor layer.

15. the second ink layer is disposed between the plurality of recesses; The illumination device of claim 14 , wherein a top surface of the second ink layer disposed between regions of the first ink layer has the same height.

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