Lighting modules, lighting fixtures, and lamps

Abstract

To provide a lighting module that emits, in a line form, light that has been emitted from a plurality of light-emitting elements.SOLUTION: A lighting device 200 includes: a substrate 210; a plurality of light-emitting elements 100 disposed on the substrate; a first reflective member 230 disposed on the substrate; a resin layer 220 disposed on the first reflective member; a second reflective member 240 disposed on the resin layer; and a wavelength conversion layer 250 disposed on one surface of the resin layer facing the light-emitting surface 111 of the light-emitting element, in which a distance from the light-emitting surface to the one surface S1 may be 5 to 10 times a height of the resin layer.SELECTED DRAWING: Figure 3

Description

Technical Field

[0003] , , , , , , , , , ,

[0001] Embodiments of the invention relate to a lighting module having a plurality of light emitting elements. The embodiments of the invention relate to a lighting module that emits surface light on different planes, a lighting device, a light unit, a display device, and a vehicle lamp having the lighting module.

Background Art

[0002] Applications of lighting include not only vehicle lighting but also backlights for displays and signs. Light emitting elements, such as light emitting diodes (LEDs), have 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 elements are applied to various lighting devices such as various display devices, indoor lamps, or outdoor lamps. Recently, lamps employing light emitting elements have been proposed as vehicle light sources. Compared with incandescent lamps, light emitting elements are advantageous in that they consume less power. However, since the emission angle of the light emitted from the light emitting element is small, when using the light emitting element as a vehicle lamp there is a requirement for increasing the light emitting area of the lamp using the light emitting element. Since the light emitting element is small in size, the degree of freedom in lamp design can be increased, and there is also economic efficiency due to the semi-permanent life.

Summary of the Invention

Problems to be Solved by the Invention

[0004] An embodiment of the invention includes a substrate and a plurality of light-emitting elements arranged on the substrate. The first reflective member is placed on the substrate, and the resin is placed on the first reflective member. A layer, a second reflective member disposed on the resin layer, and a front facing the light-emitting surface of the light-emitting element. The resin layer includes a wavelength conversion layer disposed on one surface of the resin layer, and the light-emitting surface is located relative to the height of the resin layer. The distance between the aforementioned surfaces may be 5 to 10 times.

[0005] An embodiment of the invention includes a substrate and a plurality of light-emitting elements arranged on the substrate. The first reflective member is placed on the substrate, and the resin is placed on the first reflective member. A layer, a second reflective member disposed on the first region of the resin layer, and on the second region of the resin layer The first pattern layer is arranged, and the resin layer is arranged on one side facing the light-emitting surface of the light-emitting element. The first pattern layer includes a wavelength conversion layer, and the first pattern layer has a polygonal, circular or linear shape. It can contain at least one of these.

[0006] According to an embodiment of the invention, the polygon or circle of the first pattern layer is made up of lines. The first pattern layer can include multiple interconnected patterns. The plurality of patterns may include honeycomb structure patterns. The layer comprises a first shape and a second shape which differs from the first shape and is arranged within the first shape. It can have. The first pattern layer and the plurality of light-emitting elements are arranged vertically over - It is not necessary to overlap. The second reflective member overlaps perpendicularly with the light-emitting element. It can be done. According to an embodiment of the invention, the area of ​​the second region is the surface of the first region. The product may be greater than the area of ​​the second region. The area of ​​the second region is 0.6 to 1 times the area of ​​the first region. It may be 0.3 times. It includes a second pattern layer disposed on one region of the second reflective member. The first pattern layer and the second pattern layer have a fixed or irregular pattern. This may include the shape of the pattern of the first pattern layer and the pattern of the second pattern layer The shape of the pattern may differ. One region of the pattern of the first pattern layer is the second pattern It can overlap a region of the layer pattern perpendicularly.

[0007] The lighting device according to an embodiment of the invention includes a substrate and a plurality of light-emitting elements disposed on the substrate. And a first reflecting member disposed on the substrate, and a resin disposed on the first reflecting member. A layer, a second reflecting member disposed on a first region above the resin layer, and a wavelength conversion layer disposed on one surface of the resin layer facing the light-emitting surface of the light-emitting element. And a second pattern layer disposed on a region of the first reflecting member, the second pattern layer can include at least one of a polygonal, circular or line shape.

[0008] According to an embodiment of the invention, the second pattern layer may be disposed in front of the light-emitting surfaces of the plurality of light-emitting elements. The second pattern layer may be molded by the resin layer. The first region may not overlap vertically with the second pattern layer.

[0009] The lighting device according to an embodiment of the invention includes a substrate and a plurality of light-emitting elements disposed on the substrate. And a first reflecting member disposed on the substrate, and a resin disposed on the first reflecting member. A layer, a second reflecting member disposed on a first region above the resin layer, and a wavelength conversion layer disposed on one surface of the resin layer facing the light-emitting surface of the light-emitting element. And a pattern layer disposed on at least one region of a region of the first reflecting member and a region above the resin layer, The shape of the light emitted from the light-emitting element and passing through the pattern layer can include at least one of a polygonal or circular shape.

[0010] According to an embodiment of the invention, it can include a colored ink layer disposed on the wavelength conversion layer. The colored ink layer can include red ink. According to an embodiment of the invention, One surface of the resin layer and the wavelength conversion layer have a plurality of protrusions and a shape between the plurality of protrusions. The recess is formed, and each of the plurality of protrusions is each of the plurality of light-emitting elements It can correspond to the position.

[0011] According to an embodiment of the invention, the plurality of light-emitting elements are of the side view type (Side V The first reflective member includes an LED of the side view type L It may include multiple holes in which the EDs are arranged. They may be arranged at a distance of the first distance. The distance from the light-emitting surface to the first surface is the It can correspond to a distance of 1. The first distance is 10 mm to 15 mm, and the resin layer The height may be 1.5 mm to 1.6 mm. According to an embodiment of the invention, the resin layer One surface may have curvature. The shape of the light may be in the form of lines. [Effects of the Invention]

[0012] According to an embodiment of the invention, through at least one side of a lighting module having a thin thickness The luminous intensity of the emitted light can be improved. According to an embodiment of the invention, the lighting module To provide wavelength-converted light through at least one side of the resin layer, or at Light whose wavelength has been converted can be provided through one side and one or / or the other side. According to the example, light whose wavelength has been converted through the exit surface of the resin layer and the upper surface adjacent to the exit surface Or / and light emitted from the light-emitting element can be extracted. According to an embodiment of the invention, The thin lighting modules are provided in a linear light format, increasing design flexibility. This can improve the uniformity of the emitted surface light. Lighting module according to an embodiment of the invention. The optical reliability of the lamp and the lighting device having the same can be improved. The lighting module in question includes vehicle lighting devices, light units, various display devices, and electronic display boards. It can be applied to a display board. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view showing a lighting device according to the first embodiment of the invention. [Figure 2] Figure 1 is a plan view of the lighting device. [Figure 3] Figure 2 is a cross-sectional view of the lighting device along the line A-A. [Figure 4] Figure 2 is a cross-sectional view of the lighting device along the line B-B. [Figure 5] This is a first modified example of the light output section of the lighting device shown in Figure 3. [Figure 6] This is a second modified example of the light output section of the lighting device shown in Figure 3. [Figure 7] This is another example of the lighting device shown in Figure 2. [Figure 8] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 7. [Figure 9] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 7. [Figure 10] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 7. [Figure 11] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 7. [Figure 12] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 7. [Figure 13] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 7. [Figure 14] This is a plan view showing a lighting device according to the second embodiment. [Figure 15] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 14. [Figure 16] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 14. [Figure 17]This is a modified example of the side cross-sectional view of the lighting device shown in Figure 14. [Figure 18] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 14. [Figure 19] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 14. [Figure 20] This is a modified example of the side cross-sectional view of the lighting device shown in Figure 14. [Figure 21] This is another example of a side cross-sectional view of the lighting device shown in Figure 1, Figure 7, or Figure 14. [Figure 22] This is another example of a side cross-sectional view of the lighting device shown in Figure 1, Figure 7, or Figure 14. [Figure 23] This is another example of a side cross-sectional view of the lighting device shown in Figure 1, Figure 7, or Figure 14. [Figure 24] This is another example of a side cross-sectional view of the lighting device shown in Figure 1, Figure 7, or Figure 14. [Figure 25] This is another example of a side cross-sectional view of the lighting device shown in Figure 1, Figure 7, or Figure 14. [Figure 26] This is another example of a light-emitting element in a lighting device according to an embodiment of the invention. [Figure 27] Figures 1, 7, and 14 show examples where a layer of phosphor formed on one and / or the other surface of the lighting device is extended to the third and fourth surfaces. [Figure 28] Figures 1, 7, and 14 are plan views showing layers with patterns on one and / or the other surface of the lighting device. [Figure 29] This is an example of a plan view of a lighting device according to a third embodiment of the invention. [Figure 30] This is an example of a plan view of a lighting device according to a third embodiment of the invention. [Figure 31] This is an example of a plan view of a vehicle lamp lighting device according to an embodiment of the invention. [Figure 32] This is an example of a front view of a light-emitting element applied to a lighting device according to an embodiment of the invention. [Figure 33] Figure 32 shows an example of a lighting device in which the light-emitting elements are arranged on a circuit board. [Figure 34] This is a plan view of a vehicle to which a lighting device or a lamp having a lighting device according to an embodiment of the invention is applied. [Figure 35] Figure 34 is a drawing showing a lamp with a lighting device or lighting module. [Figure 36] Figure 28 is a diagram showing the light distribution in a lighting module or lighting device. [Modes for carrying out the invention]

[0014] The following is a description by a person with ordinary skill in the art to which this invention belongs, with reference to the attached drawings. Preferred embodiments that facilitate the implementation of the invention will be described in detail. However, the embodiments described herein are not The embodiments and configurations illustrated in the drawings are merely preferred embodiments of the present invention, and as of the time of filing this application... It should be understood that there are various equivalents and variations that can substitute for these. In a detailed description of the operating principle for a preferred embodiment, the known configuration or function is described in relation to the above. If it is determined that providing a specific explanation would hinder the understanding of the embodiments of the present invention, then the details will be omitted. Further explanation is omitted. The terms described below are defined in consideration of the function of this invention. Therefore, the meaning of each term should be interpreted based on the overall content of this specification. Throughout the drawing, parts that have similar functions and operations shall be given the same reference numerals. The lighting device according to the present invention is suitable for a variety of lamp devices that require lighting, such as vehicle lamps. It can be applied to household lighting equipment and industrial lighting equipment. For example, it can be applied to vehicle lamps. In this case, headlights, side lights, side mirror lights, fog lights, taillights (Tail lights) (mp), brake lights, daytime running lights, interior lighting, door scuffs, rear combination lights Applicable to lights, backup lamps, etc. The lighting device of the present invention is suitable for indoor and outdoor advertising lighting. It can be applied to various electric vehicle fields, as well as other areas currently under development for commercial use. Whether it has been implemented or is feasible with future technological advancements, it will be used in all areas related to lighting and advertising. It can be said that this is applicable to various fields. The following examples are shown in the attached drawings and examples. This will become clear from the explanation. In the description of the examples, each layer (film), region, pattern Or the structure is "on" or "below" the substrate, each layer (film), region, pad or pattern When it is stated that they are formed, "upper" and "lower" mean "directly" or "through other layers." This includes what is formed. Furthermore, the reference points for the top or bottom of each layer are explained based on the drawings. do.

[0015] <Lighting module or lighting device> Figure 1 is a perspective view showing a lighting device according to the first embodiment of the invention, and Figure 2 shows the lighting of Figure 1. Figure 3 is a plan view of the device, Figure 4 is a cross-sectional view of the lighting device on the A-A side of Figure 2. Figure 5 is a cross-sectional view of the lighting device from the B-B side, and Figure 5 is a first modified example of the first emission surface of the lighting device in Figure 3. Yes, Figure 6 is a second modified example of the first emission surface of the lighting device in Figure 3, and Figure 7 is the lighting device in Figure 2. Another example of placement is shown in Figures 8 to 13, which are modified side cross-sectional views of the lighting device in Figure 7.

[0016] Referring to Figures 1 to 6, the lighting module or device 200 according to an embodiment of the invention is based The device may include a plate 210, a resin layer 220, a wavelength conversion layer 250, and a plurality of light-emitting elements 100. The lighting device 200 comprises at least one of the resin layer 220 or the wavelength conversion layer 250. A second reflective member 240 may be placed on one or both of the lighting module. Layer 200 comprises at least one or both of the resin layer 220 or the wavelength conversion layer 250. A first reflective member 230 may be included below the base. The first and second The reflective members 230 and 240 can reflect incident light.

[0017] The light emitted from the light-emitting element 100 reaches at least one of the sides of the resin layer 220. The illumination module can emit light in a planar form through or through the wavelength conversion layer 250. The rule 200 has line-shaped sides, emission surfaces or transparent surfaces around the multiple light-emitting elements 100. Surfaces are arranged. The lighting module 200 faces the light-emitting surfaces of the plurality of light-emitting elements 100. An injection-jected surface having a certain height or thickness is provided on one side. The resin layer 220 is at least Both sides and one side (or top) can be exposed, and the wavelength conversion layer 250 is less At least one side and one side (or top) or / or the other side (or bottom) can be exposed. The lighting module or device 200 has a first surface S1 and a second surface arranged on opposite sides of each other. It may include surface S2, and third and fourth surfaces S3 and S4 located on opposite sides of each other. The first and second surfaces S1 and S2 are extended in the first direction with a long length, and the third and second The four surfaces S3 and S4 may be extended in the second direction with a longer length. These can intersect at mutual orthogonal angles, or at mutually acute or obtuse angles. The third direction is perpendicular. Alternatively, it may be in the thickness direction and perpendicular to the first and second directions. In Joule 200, at least a portion of the first surface S1 and the second surface S2 are mutually opposite in number They may be arranged in such a way. At least a portion of the third surface S3 and the fourth surface S4 are opposite each other. They may be arranged so as to face or be offset. The third surface S3 and the fourth surface S4 are the first The surfaces S1 and S2 may be different sides. The small distance may be smaller than the minimum distance between the third surface S3 and the fourth surface S4.

[0018] In the aforementioned lighting module 200, the first surface S1 and the second surface S2 are unidirectional or first It can have a long length in direction X, and may be extended to a bar shape or line shape. i. The first surface S1 is the surface facing the light-emitting surface 111 of the light-emitting element 100, or the resin layer 2 20 or the side of the wavelength conversion layer 250 from which the light with the highest luminous intensity is emitted may also be the side from which the light with the highest luminous intensity is emitted. The first surface S1 may be a first emission surface facing the light-emitting surface 111. Here, Although it was explained that the light-emitting element 100 has a side surface in one direction as the light-emitting surface 111, the element or Depending on the type of light source, it can emit light from two or more or four or more sides. The aforementioned lighting module In the device or apparatus 200, a plurality of light-emitting elements 100 are arranged in a first direction, or They may be arranged along regions adjacent to two surfaces S2. The plurality of light-emitting elements 100 are at least They may be arranged in at least one row. The light-emitting elements 100 arranged in at least one row are connected. The virtual line may include straight lines or curves. As another example, the plurality of light-emitting elements The children may be arranged in two rows, and the light-emitting elements of the first and second rows are on the first surface S1 and The second surfaces S2 may be arranged so as not to overlap in the column direction (for example, the Y direction). The plurality of light-emitting elements 100 arranged in the first direction X are on the first surface S1 or the first emission surface Each of the multiple light-emitting surfaces 111 of the multiple light-emitting elements 100 is It can face the first emission surface or the first surface S1. Emitted from the light-emitting element 100 The light is emitted through the first surface S1, and some of the light is emitted through the second surface S2, the third surface S3 and / Alternatively, it is emitted through the fourth surface S4.

[0019] As shown in Figures 2 to 5, the lighting module 200 has a first length X1 in the first direction X. The second length Y1 in the second direction Y may be longer than the second length Y1. The first length X1 is the light-emitting element 100 The number of arrangements can be varied, and may be, for example, 30 mm or more. The second in the second direction Length Y1 can be 13 mm or more, 16 mm or more, or 20 mm or less. The second length Y1 of the lighting module 200 is the region in which the light emitted from the light-emitting element 100 is diffused. This provides a region that protects the rear of the light-emitting element 100. Here, the adjacent If the minimum distance between the two light-emitting elements 100 is G1, then the first length X1 is 2 times the distance G1. The second length Y1 may be greater than twice the distance G1, and may be less than or equal to twice the distance G1. G1 can have a range of 10 mm or more, for example, 10 mm to 15 mm.

[0020] As shown in Figures 2 and 3, the light-emitting surface (or one surface) of the light-emitting element 100 and the first surface S1 The distance D1 between them and the distance D5 between the other surface of the light-emitting element 100 and the second surface S2 may be different. For example, the relationship D1 > D5 can be maintained between the light-emitting element 100 and the second surface S The distance D5 between 2 can be 3mm or more, for example, in the range of 3mm to 20mm. It is possible that the distance D5 between the light-emitting element 100 and the second surface S2 is within the range. If it is too small, the area in which moisture can penetrate or form a circuit pattern becomes smaller, If it exceeds the range, the size of the lighting module 200 increases. In 00, the first surface S1, the second surface S2, the third surface S3, and the fourth surface S4 are perpendicular to the third direction Z. They may be provided as straight planes, or at least one of them may include curved or inclined surfaces. The first surface S1, the second surface S2, the third surface S3, and the fourth surface S4 have the same thickness in the third direction Z. They can be or have the same height. For example, the first surface S1, which is the first emission surface, is vertical. The resin layer 220 may be a flat surface or a convex curved surface having curvature. The wavelength conversion layer 250 may include a second surface S2, a third surface S3, and a fourth surface S4. This may include the first surface S1, the third surface S3, and the fourth surface S4.

[0021] A wavelength conversion layer 250 is positioned on the outside of the resin layer 220. The first to fourth surfaces S1, S 2, S3 and S4 may be the outermost surface of the resin layer 220 or the wavelength conversion layer 250. The wavelength conversion layer 250 is arranged on the side surface of the first surface S1, or on the third surface S3 or / and The wavelength conversion layer 250 may be arranged on part of or the entire side of the four surfaces S4. When in contact with the outer surface of 220, the interface S between the wavelength conversion layer 250 and the resin layer 220 a may be arranged along the region in which the wavelength conversion layer 250 is formed. For example, The interface Sa is either a first surface S1 or a first surface S1, a third surface S3, or a fourth surface S4. It may be arranged along the section. That is, the wavelength conversion layer 250 is the first of the resin layer 220 , 3, 4 may be arranged on the surfaces corresponding to surfaces S1, S3, and S4. The resin layer 220 is The elements arranged on the substrate 210, for example, one or more light-emitting elements 100, surround the element. They may be arranged in such a way. The resin layer 220 can seal the light-emitting element 100. The resin layer 220 can come into contact with the light-emitting element 100. The optical element 100 is arranged in a first direction with at least three or more elements, and the resin layer 22 The plurality of light-emitting elements 100 are arranged within 0. The substrate 210 and the second reflective member 240 It is placed between them. The resin layer 220 is made of a translucent material such as silicone or epoxy. It may be present. The resin layer 220 may include glass material as another material. The aforementioned resin layer 220 is a layer free of impurities, or it may contain impurities such as a diffusing agent. The first reflective member 230 is positioned between the resin layer 220 and the substrate 210. The first reflective member 230 may not be formed, and a reflective material may be placed on the upper surface of the substrate 210. It is possible to form this.

[0022] The substrate 210 is a printed circuit board (PCB). Includes (oard), for example, resin-based printed circuit boards (PCBs), metal cores (Met (Al Core) PCB, Flexible PCB, Ceramic PCB The substrate 210 may include a flexible or rigid FR-4 substrate. The substrate may be made of a hard material. The substrate 210 has a circuit pattern arranged on its upper surface. The circuit pattern of the substrate 210 has multiple pads in the region corresponding to the light-emitting element 100. The plurality of light-emitting elements 100 are electrically connected to the substrate 210. The plurality of light-emitting elements 100 have a bonding section located at the bottom, and the bonding The part is electrically connected to the pads of the substrate 210. The plurality of light-emitting elements 100 are The circuit patterns of the circuit board 210 may be connected in series. As another example, the multiple The light-emitting elements 100 are connected in parallel by the circuit pattern of the substrate 210, or two or more of them are connected in parallel. A group of these connected in series may be connected in parallel. With respect to the optical element 100, the rear region is the region opposite to the region from which light is emitted, A circuit pattern for connecting the optical element 100 is arranged. The rear region is the light-emitting element The width is variable depending on the number of child 100s or the way the light-emitting elements 100s are connected. The width of the region is the distance D5 between the light-emitting element 100 and the second surface S2, and is 3 mm or more. This may be done. This suppresses the penetration of moisture from the rear of the light-emitting element 100, and multiple A circuit pattern for connecting the light-emitting elements 100 can be formed.

[0023] The light-emitting element 100 is an element having a light-emitting chip or an LED chip packaged The package may include the light-emitting chip, which emits blue, red, green, and ultraviolet light. It can emit at least one of the following (UV): white, blue It can emit light in at least one of the following colors: red, green, and red. The light-emitting element 100 is It emits light in a lateral direction, and its bottom is positioned on the substrate 210. For example, the light-emitting element 1 00 indicates a side-view type package, or one side is exposed. The package may have a light surface 111. As another example, the light-emitting element 100 is It may be an LED chip, where one side of the LED chip is open and the other side has a reflective material. It is placed. Or an LED chip is placed on the substrate 210, and the upper surface of the LED chip It can emit light through the sides. The light-emitting surface 111 of the light-emitting element 100 is Even if it is placed on a surface adjacent to the substrate 210, for example, on a side adjacent to the upper surface of the substrate 210 Good. The light-emitting surface 111 is located on the side between the bottom and top surfaces of the light-emitting element 100, Light will be emitted in the second direction Y. The light-emitting surface 111 of the light-emitting element 100 is as described above 1 Adjacent to the reflective member 230, the upper surface of the substrate 210 and the upper surface of the first reflective member 230 The plane may be perpendicular to the light-emitting element. The height of the light-emitting element 100 is in the range of 1 mm to 2 mm. It can have a range of, for example, 1.2 mm to 1.8 mm. Figure 2 And as shown in Figure 4, the spacing G1 between the light-emitting elements 100 is 10 mm or more, for example, 10 mm It can have a range of m to 15 mm. Also, the outermost light-emitting element 100 and resin layer 2 The distance G2 between the third or fourth side surfaces S3 and S4 of 20 may be smaller than the interval G1. It can have a distance of 10 mm or less. Here, the distance D1 is 90 of the interval G1. It can be % or more, for example, in the range of 90% to 120%, and the interval G1 is the distance It can be varied by D1.

[0024] Even if the length of the light-emitting element 100 in the first direction X is greater than the height of the light-emitting element 100 Often, for example, it may be 1.5 times or more the height of the light-emitting element 100. Since element 100 has a low height and a long length in the first direction X, within the light-emitting element 100 Using the center as a reference, a wide range of light emission angles can be provided in the first direction X, which is the left-right direction. Here, the light emission angle of the light-emitting element 100 in the first direction X is in the third direction Z, which is the vertical direction. The light emission angle may be greater than the second direction Y of the light-emitting element 100. The light emission angle in the second direction Y of the light-emitting element 100 is 110 degrees. It can have a range of ~160 degrees. Here, as shown in Figure 3, the thickness of the substrate 210 Za may be smaller than the height of the light-emitting element 100. The height of the light-emitting element 100 is The thickness Za of the substrate 210 may be twice or more, for example, having a range of 2 to 4 times. This is possible. Since the thickness Za of the substrate 210 is provided to be thin, the lighting module 200 It is provided as a flexible plate.

[0025] The resin layer 220 can cover the light-emitting element 100 on the substrate 210. The second reflective member 240 can cover the upper surface of the resin layer 220. 20 can contact the top and side surfaces of the light-emitting element 100. The resin layer 220 is , can contact the upper surface of the first reflective member 230. A part of the resin layer 220 is The first reflective member 230 can contact the substrate 210 through the hole 232. The resin layer 220 can come into contact with the light-emitting surface 111 of the light-emitting element 100. The first surface S1, second surface S2, third surface S3, and fourth surface S4 of the resin layer 220 are the first surface It may also be the side surface between the second reflective members 230 and 240. The upper surface of the resin layer 220 The product is the upper surface area of ​​the substrate 210, the upper surface area of ​​the first reflective member 230, or the second reflective member. The lower surface area of ​​the injection member 240 may be the same. The length of the resin layer 220 in the first direction is The length of the substrate 210, the length of the first reflective member 230, and / or the second reflective member 24 The length may be the same as 0. In the second direction, the maximum width Y1 of the resin layer 220 is the same as the substrate The maximum width of 210, the maximum width of the first reflective member 230, and / or the second reflective member 240 It may be the same as the maximum width. As another example, the upper surface area of ​​the resin layer 220 is the same as the substrate The upper surface area of ​​210 may be smaller than the upper surface area of ​​210. In such a structure, the upper surface of the substrate 210 The edge can protrude outward from the edge of the lower surface of the resin layer 220. The resin layer 220 is positioned between the first and second reflective members 230 and 240. A portion of 20 is positioned between the substrate 210 and the second reflective member 240. The upper surface of 30 and the lower surface of the second reflective member 240 face each other on the lower and upper surfaces of the resin layer 220. The upper surface of the first reflective member 230 and the lower surface of the second reflective member 240 are the same. It can have a single surface area. As a result, the resin layer 220 emits light from the light-emitting element 100. The emitted light and the light reflected by the first and second reflective members 230 and 240 are diffused in the lateral direction. They can guide you.

[0026] The resin layer 220 is formed with a thickness Zb or height greater than the height of the light-emitting element 100. This may be done. As a result, the resin layer 220 protects the upper part of the light-emitting element 100 and prevents moisture. The penetration of air can be suppressed. The light-emitting element 100 has a substrate 210 placed at its lower part. Since a resin layer 220 is placed on top, the light-emitting element 100 can be protected. Therefore, the distance between the upper surface of the resin layer 220 and the light-emitting element 100 is 0.5 mm or less, for example. For example, they may be placed in the range of 0.2 mm to 0.5 mm. The thickness Zb of the resin layer 220 is , the distance between the first and second reflective members 230, 240, and the first and second reflectors The distance between the ray members 230 and 240 (e.g., Zb) is between the first surface S1 and the second surface S2 The distance between them may be smaller than the distance between them. For example, the distance between the first surface S1 and the second surface S2 is This may include a maximum distance or a minimum distance. The distance between 0 and 240 is smaller than the second width Y1 or minimum width of the lighting module 200. By arranging them in a specific way, they provide linear surface illumination, improving luminous intensity and preventing hot spots. It is possible to provide a lighting module that is flexible in a third direction. The thickness Zb of the resin layer 220 may be less than or equal to twice the thickness of the light-emitting element 100. Often, for example, it may be more than 1x or less than 2x. The thickness Zb of the resin layer 220 is For example, having a range of 1.5 mm to 1.9 mm or 1.5 mm to 1.6 mm. This is possible. The thickness Zb of the resin layer 220 is 0. It may be 8 times or less, for example, 0.4 to 0 times the thickness Z1 of the lighting module 200. It can have a range of 0.8 times. The resin layer 220 is the thickness of the lighting module 200 Since it is positioned with a difference of 1.2 mm or less from Z1, the light efficiency in the lighting module 200 This prevents degradation and enhances flexibility. The resin layer 220 is Recon, silicone molding compound (SMC), epoxy, or epoxy mold The tree may contain at least one of the building compounds (EMC). The lipid layer 220 is made of UV (ultra violet) curable resin or thermosetting resin material. It can include, for example, PC, OPS, PMMA, PVC, etc., and can selectively include these. For example, the main material of the resin layer 220 is urethane acrylate oligomer as the main raw material. A resin material can be used. The resin layer 220 contains beads (shown in the figure). (cannot be included) and the beads diffuse and reflect incident light to increase the amount of light It can be increased. The resin layer 220 may contain a phosphor. The phosphor content may be lower than that of other resin layers, and may be yellow, green, blue, and It may contain at least one of the red phosphors.

[0027] The first reflective member 230 reflects the light emitted from the light-emitting element 100. Yes, it is possible. The first reflective member 230 is formed on the upper surface of the substrate 210. The component 230 is formed as an upper layer of the substrate 210, or as a separate layer. Alternatively, the first reflective member 230 may be bonded to the upper surface of the substrate 210 with an adhesive. The resin layer 220 may be bonded to the upper surface of the first reflective member 230. The light emission member 230 is provided with a plurality of holes 232 in a region corresponding to the lower surface of the light-emitting element 100. The light-emitting element 100 is connected to the substrate 210 through the hole 232. A portion of the grease layer 220 can come into contact with the substrate 210 through the holes 232. The hole 232 is the region in which the light-emitting element 100 is bonded to the substrate 210. The first reflective member 230 may be formed in a single-layer or multi-layer structure. The first reflective member 230 includes a material that reflects light, such as a metal or a nonmetallic material. This is possible. If the first reflective member 230 is made of metal, it can be stainless steel, aluminum (Al ), it can contain a metal layer such as silver (Ag), and if it is a non-metallic substance, it can be a white resin material. It is either a material in which metal oxides and / or air are filled within the resin, or plastic It may include a material. The first reflective member 230 may be made of a white resin material or polyester. The material may include PET. The first reflective member 230 may be a low-reflection film, a high-reflection film. It may include at least one of a film, a diffuse reflection film, or a specular reflection film. The first reflective member 230 is, for example, a positive reflector for reflecting incident light onto the first surface S1. It may be provided as a reflective film.

[0028] One end of the first reflective member 230 may be arranged in the same plane as the first surface S1. The other end of the first reflective member 230 may be arranged in the same plane as the second surface S2. Another example Therefore, one end and the other end of the first reflective member 230 are separated from the first surface S1 and the second surface S2. and can come into contact with the resin layer 220. That is, the outside of the first reflective member 230 is resin The first reflective member can be covered with layer 220 to prevent moisture from penetrating. The thickness Zc of 230 may be less than the thickness Za of the substrate 210. The first reflective member The thickness Zc of 230 is arranged to be 0.3 times or more the thickness Za of the substrate 210, and incident light The transmission loss can be reduced. The thickness Zc of the first reflective member 230 is 0.1 mm to 0 It can have a range of 0.3 mm, and if it is smaller than the range, light transmission loss occurs, If the thickness exceeds the specified range, the thickness Z1 of the lighting module 200 increases. The second reflective member 2 The thickness Zd of 40 may be less than the thickness Za of the substrate 210. The second reflective member 2 The thickness Zd of 40 is arranged to be 0.3 times or more the thickness Za of the substrate 210, and the incident light Transmission loss can be reduced. The thickness Zd of the second reflective member 240 is 0.1 mm to 0. It can have a range of 3 mm, and if it is smaller than the range, light transmission loss occurs, If it is thicker than the range, the thickness Z1 of the lighting module 200 increases. The second reflective member 24 0 is distributed across the entire upper surface area of ​​the resin layer 220, which can reduce light loss. The second reflective member 240 may be made of the same material as the first reflective member 230. The reflective member 240 reflects light and reduces light transmission loss, and the first reflective member 230 The material can have a higher light reflectivity or a greater thickness than the material. The second reflective member 2 40 may have the same or greater thickness as the first reflective member 230. For example, If so, the first and second reflective members 230 and 240 may be provided of the same material and thickness. The second reflective member 240 may be formed in a single-layer or multi-layer structure. The component 240 may include a light-reflecting material, such as a metal or a nonmetal. If the second reflective member 240 is made of metal, it may be stainless steel, aluminum (Al), or silver (Ag). ) may contain a metal layer, and if it is a non-metallic material, it may be a white resin material or a resin The material is one in which metal oxides and / or air are filled within the oil, or includes plastic material. The second reflective member 240 can be made of a white resin material or polyester (PET) material. The second reflective member 240 may include a low-reflection film, a high-reflection film, and a random The invention may include at least one of a reflective film or a specular reflective film. 2. The reflective member 240 is made of a specular reflecting film so that incident light travels in the direction of the first surface S1. It may be provided. Here, the first surface S1 has a light extraction structure such as an uneven structure. This improves the extraction efficiency of light emitted through the resin layer 220. The first superimposed region that overlaps horizontally with the light-emitting element 100 on the first surface S1, and the light-emitting element The region between the elements and the second superimposed region that overlaps horizontally may be arranged in the same plane. As an example, the second superimposed region is recessed in the direction of the second plane compared to the first superimposed region, or the first The superimposed region can protrude convexly from the second superimposed region. The first surface S1 is a Hay The haze surface is treated to diffuse light. The surface of layer 220 is treated to be rougher than the other surfaces, allowing the emitted light to be diffused. Module 200 provides the thickness Z1 in the third direction in a line form, thus offering flexibility. It can provide line-shaped surface illumination. The thickness Z1 of the illumination module 200 is 3 It may have a diameter of 3 mm or less. That is, the lighting module 200 has at least one side It can emit surface light in the form of lines less than 3 mm in diameter. As another example, the illumination module Lure 200 is positioned greater than 2mm and less than or equal to 6mm, in this case, lighting module 2 The thickness of 00 increases, but the thickness of the resin layer 220 is increased to increase the line width. The light distribution area can be increased.

[0029] Referring to Figure 3, the thickness of each component in the lighting module 200 is as follows: substrate 21 The thickness of 0 is Za, the thickness of the resin layer 220 is Zb, and the thickness of the first reflective member 230 is If the thickness of the second reflective member 240 is Zd at Zc, then the relationship Zb > Za > Zd ≥ Zc holds. It may be possible between the lower surface of the substrate 210 and the upper surface of the second reflective member 240. The distance is the thickness Z1 of the lighting module 200. The thickness Zb is 0.4 to 0.8 of Z1. This is a ratio, where the thickness Za is a ratio of 0.14 to 0.18 of Z1, and the thickness Zd is Zc can have a ratio of 0.08 to 0.12 of Z1. Zb is 3. It can have a ratio of 5 to 4. The ratio of Zb to Zc or Zd is 5.8 to 6.4. It can have such a resin layer 220 with a thickness Zb greater than the thickness Za of the substrate 210. By placing it thickly, it can protect the light-emitting element 100 and diffuse and guide the light, and the flexible The sible properties can be enhanced. Also, the resin layer 220 has a thickness Zb or height. Since a first emission surface in a line configuration is provided, a line emission surface can be provided. The distance D1 between the light-emitting surface 111 of the light-emitting element 100 and the first surface S1 is the distance between the resin layer 22 It can have a thickness Zb of 0 or more than 5 times the height, for example, in the range of 5 to 10 times. The distance D1 can be 10 mm or more, for example, in the range of 10 mm to 15 mm. The distance D1 from the light-emitting surface 111 of the light-emitting element 100 to the first emission surface or first surface is the same as the distance D1 of the light-emitting element 100. If the thickness of the lipid layer 220 Zb is less than 5 times, the surface light source distribution becomes non-uniform, and if it exceeds 10 times... In this case, the efficiency of improving the distribution of area light sources becomes negligible compared to the increase in module size.

[0030] The wavelength conversion layer 250 is positioned on the output side outer surface of the resin layer 220. The emission surface of 50 is where the first surface S1 is located. The wavelength conversion layer 250 is where the plurality of light-emitting elements The light-emitting surface 111 of the child 100 can be faced. The thickness of the wavelength conversion layer 250 in the vertical direction The thickness Zb of the resin layer 220 may be the same as or greater than the thickness Zb of the resin layer 220. The vertical thickness of 50 is determined by the thickness Zb of the resin layer 220 and the first and second reflective members 230 and 24 The wavelength conversion layer may be provided as the sum of any one of the thicknesses Za and Zd. The vertical thickness of 250 is less than or equal to the distance between the top surface of the substrate 210 and the second reflective member 240. Or, it may be greater than the distance between the upper and lower surfaces of the resin layer 220. The inner surface of 50 is in contact with the resin layer 220, and the lower surface is in contact with the substrate 210 and the first surface At least one or both of the ray members 230 can be in contact. The upper surface of the reflective layer 250 can come into contact with the second reflective member 240. This allows the wave The long conversion layer 250 covers the outer surface (i.e., Sa) of the resin layer 220 and penetrates from the outside. It can block moisture. Here, the outer surface or first surface S1 of the wavelength conversion layer 250 The surface may be in the same plane as the side surface of the substrate 210 and / or the second reflective member 240. The wavelength conversion layer 250 has a width D3 of 0.7 mm or less in the horizontal second direction Y, for example, 0.3 mm. The width D may be provided in a range of ~0.7 mm or 0.3 mm to 0.5 mm. 3 may be smaller than the length Y1 of the resin layer 220 in the second direction, for example, 1 / 30 of D2 or less. The lower part may also be used. The wavelength conversion layer 250 may include wavelength conversion means inside. The wavelength conversion means may include a phosphor and / or quantum dots. Quantum dots are, for example, amber, yellow, green, red, and The wavelength conversion layer 2 can emit at least one or more blue light. The content of the wavelength conversion means added to 50 is 13 wt% or more of the weight of the wavelength conversion layer 250. It may be added in the range of 13 wt% to 60 wt%. The amount of photon material can be changed depending on the emitted luminous intensity and wavelength conversion efficiency. The light emitted through the wavelength conversion layer 250 is the first light emitted from the light-emitting element 100. The second light, whose wavelength has been converted within the wavelength conversion layer 250, may be mixed with the first light. The mixed light of the second light may be red or white. The wavelength conversion layer 250 expands It may contain a powder and / or ink particles. The ink particles may be metallic ink, UV ink It may contain at least one of ink or cured ink. The size of the ink particles The size may be smaller than the size of the phosphor. The surface color of the ink particles is green. It may be any one of red, yellow, or blue. The type of ink particle is PVC (Polyvinyl chloride) ink, PC (Polycarbonate) nate) ink, ABS (acrylonitrile butadiene sty Rene copolymer ink, UV resin ink, epoxy ink, silicone ink Ink, PP (polypropylene) ink, water-based ink, plastic ink, PMMA (polymethyl methacrylate) ink, PS (Pol It can be selectively applied from ystyrene ink. Here, the ink particles The width or diameter can be 5 μm or less, for example, in the range of 0.05 μm to 1 μm. At least one of the ink particles may be smaller than the wavelength of light. The material may contain at least one color from red, green, yellow, and blue. For example, the phosphor may emit red wavelengths, and the ink particles may contain red. Here, when ink particles and wavelength conversion means are added together in the wavelength conversion layer 250 In addition, the ink particles can reduce the transmittance of incident light, and in power-off mode The external color can be provided in the same color as the ink color. The wavelength conversion layer 25 In case 0, the content of the wavelength conversion means is reduced to 20 wt% or less by the ink particles. It is possible.

[0031] Looking at the manufacturing process of the lighting module, for example, the light-emitting element 100 is mounted on the substrate 210. The first reflective member 230 is then attached to the substrate 210. After forming 20, a wavelength conversion layer 250 can be formed. The resin layer 220 and After forming the wavelength conversion layer 250, the second reflective member 240 can be attached. Another example is... Then, after forming the resin layer 220, the second reflective member 240 is attached, and thereafter the resin layer 220 A wavelength conversion layer 250 can be formed on the side surface.

[0032] Referring to Figure 5, the lighting module or device has a resin layer 220 on the substrate 210 The wavelength conversion layer 255 and the colored ink layer 252 may be included. 0 may include wavelength conversion means, and the colored ink layer 252 may include ink particles. This is possible. The ink particles reduce the light transmittance without changing the wavelength of light. This is possible. In addition, the colored ink layer 252 is generated on the light-emitting surface 111 of the light-emitting element 100. Since the hotspot is visible from the outside, reduce the light transmittance to block the hotspot. It can be removed. The colored ink layer 252 can be removed when the power is off. Provided in pink color, when the power is turned on, the wavelength converted light and the emitted light are provided by the wavelength conversion means. The light emitted from the element 100 can be transmitted. The colored ink layer 252 is The colored ink layer 25 can face the light-emitting surfaces 111 of the multiple light-emitting elements 100. In 2, the first surface S1 is positioned on the outside, and the outer surface of the wavelength conversion layer 250 can come into contact with the inner surface. The colored ink layer 252 is arranged on the first surface S1, or on the first surface S1 and the third and third surfaces. It may be placed on part or all of the four surfaces S3 and S4. As shown in Figures 2 and 5, The outermost wavelength conversion layer 250 or colored ink layer 252 further expands the light-emitting area. It can be done. The height or thickness of the colored ink layer 252 in the vertical third direction Z is The height or thickness of the wavelength conversion layer 250 may be the same. The colored ink in the vertical direction Z The height or thickness of the acrylic layer 252 is the same as or greater than the height or thickness of the resin layer 220. It is fine to listen. The width of the colored ink layer 252 in the horizontal second direction Y is the same as the wavelength conversion layer 25 The width may be less than 0. The inner surface of the colored ink layer 252 is the wavelength conversion layer 250 The lower surface is in contact with at least one of the substrate 210 and the first reflective member 230. Or both can be in contact. The upper surface of the colored ink layer 252 is the second reflective part It can come into contact with material 240. As a result, the colored ink layer 252 changes the wavelength The outer surface of the 250 layer is covered, and the color of the light emitted in power-on or power-off mode and the non-emitting light are displayed. The difference in light surface color can be reduced. Here, the outer surface of the colored ink layer 252 or The first surface S1 is coplanar with the side surface of the substrate 210 and / or the second reflective member 240. Alternatively, as shown in Figures 3 and 6, the wavelength conversion layer 250 is arranged on the emission side of the light-emitting element 100. In that case, the outer surface of the wavelength conversion layer 250, i.e., the first surface S1, is the substrate 210 or / and The side surface of the second reflective member 240 may be in the same plane. As shown in Figure 6, the wavelength conversion layer 2 50 is positioned between the first and second reflective members 230, 240, or between the first and second reflectors It can come into contact with the reflective members 230 and 240. Here, the second reflective member 240 is a tree A portion of the oil layer 220 can be exposed. The second reflective member 240 is the resin layer 220 A portion of the upper surface can be exposed. As shown in Figures 7 and 8, the upper part of the wavelength conversion layer 250 The surface is positioned outside the second reflective member 240 or is exposed from the second reflective member 240. The inner surface of the wavelength conversion layer 250 can be in contact with the outer surface of the resin layer 220. Yes, it is possible. The upper part of the wavelength conversion layer 250 is in contact with the side surface of the second reflective member 240. This can be done, and the upper surface of the second reflective member 240 is at the same height as the upper surface of the second reflective member 240. It may be even lower. In other words, the wavelength conversion layer 250 can have a wider light-emitting area.

[0033] As shown in Figure 9, the resin layer 220 can come into contact with the upper surface of the substrate 210. The resin layer 220 can come into contact with the side surface of the first reflective member 230. Wavelength conversion layer 2 50 is the side of the substrate 210, the side of the resin layer 220, and the side of the second reflective member 240 on the emission side. It can contact at least one of the surfaces. The wavelength conversion layer 250 is located on the substrate 2 10 or / and the second reflective member 240 are positioned on the outer side of the reflective surface of the lighting module 200. It can cover the side region. The vertical height or thickness of the wavelength conversion layer 250 is The thickness may be the same as that of the illumination module 200. The wavelength conversion layer 250 is an illumination module The second reflective member 24 contacts one side of the Joule 200, suppressing moisture penetration. The problem of zeros appearing can be suppressed. As shown in Figures 8 and 9, the wavelength conversion layer 250 includes the wavelength conversion means disclosed above, or includes the wavelength conversion means and ink particles. It is possible.

[0034] As shown in Figure 10, the resin layer 220 can contact the upper surface of the substrate 210. The resin layer 220 can come into contact with the side surface of the first reflective member 230. The replacement layer 250 is located on the side surface of the substrate 210, the side surface of the resin layer 220, and the second reflective member 24 on the exit side. It can contact at least one of the sides of 0. The wavelength conversion layer 250 is The side surface of the substrate 210 and / or the second reflective member 240 can be covered. The light layer 252 is located outside the wavelength conversion layer 250 and is the emission layer of the lighting module 200. The side region can be covered. The wavelength conversion layer 250 and the colored ink layer 252 The vertical height or thickness may be the same as the thickness of the lighting module 200. Figure 11 As shown, the colored ink layer 252 is arranged on the outer surface of the wavelength conversion layer 250, and the bottom surface and The upper surface may include extensions Ia and Ib. The extension Ia extends to the lower surface of the wavelength conversion layer 250 and can contact the substrate 210. The second extension Ib of the colored ink layer 252 extends to the upper surface of the wavelength conversion layer 250, 1. It can come into contact with the reflective member 240. As shown in Figure 12, the colored ink layer 252 is in front Displaced on the outer surface of the wavelength conversion layer 250, and on the side surface of the substrate 210 or / and the second reflective member 240 It can be extended to the side and make contact with the substrate 210. Here, the wavelength conversion layer 250 is connected to the substrate 210. It is placed between the second reflective members 240 and may be smaller than the vertical height of the colored ink layer 252. i. As shown in Figures 10 to 12, the wavelength conversion layer 250 is the wavelength conversion means disclosed above. The colored ink layer 252 may include the ink particles disclosed above. This can be done. As shown in Figure 13, the inside of the wavelength conversion layer 250 consists of the substrate 210 and the second reflective member 24 It is positioned between 0 or protrudes in the direction of the light-emitting element 100, and the upper Pb is of the second reflective member 240 The lower Pa is positioned on the outside, and the lower Pa is positioned outside the substrate 210. Such a wavelength conversion layer 25 0 is the outer surface of the resin layer 220, the edges and sides of the lower surface of the second reflective member 240, and the substrate 210 It can make contact with the edges and sides of the underside.

[0035] The material of the wavelength conversion layer 250 and / or the colored ink layer 252 includes a transparent material. The material of the resin layer 220 disclosed herein may be selectively formed from the material of the wavelength conversion layer 250. or / and the material of the colored ink layer 252 is the same as the resin layer 220, or at least One of them may be different. In the lighting module disclosed above, the second reflective member 24 0 may be removed if other mechanisms are placed or a housing is placed. The second reflective member 240 may be formed from a light-shielding layer or a light-shielding plate.

[0036] Here, an embodiment of the invention involves changing the wavelength in the direction of light emission or horizontally within the resin layer 220. Examples in which a wavelength conversion layer 250 is arranged, or in which a wavelength conversion layer 250 and a colored ink layer 252 are arranged. As explained above, as another example, the resin layer 220 has at least one layer of resin material in the vertical direction. One or more layers may be stacked. The one or more layers may be a single layer or a predetermined shape The pattern layer may have a shaped pattern. The single layer or pattern layer is made of resin It is arranged on one or / or the other surface of layer 220. For example, the single layer or pattern layer is a tree Such a structure may be placed on part of the upper surface and / or part of the lower surface of the lipid layer 220. We will explain this in detail in the examples.

[0037] Figure 14 is a plan view showing a lighting module according to the second embodiment, and Figures 15 to 20 are Figure 14 is a modified side cross-sectional view of the lighting module, and Figures 21 to 25 are modified versions of Figures 1 and 7. This is another example of a side cross-sectional view of the lighting module shown in Figure 14.

[0038] Referring to Figures 14 and 15, the lighting module consists of a substrate 210, a resin layer 220, and a wave Length conversion layer 250, light-emitting element 100 and at least one reflective member 230, 240 and A first pattern layer 255 may be included. The first pattern layer 255 is a transparent resin material. The resin material may be selectively formed from the material of the resin layer 220, including the quality of the resin material. The first pattern layer 255 may include wavelength conversion means internally. The ink layer 255 can contain ink particles and wavelength conversion means inside.

[0039] The first pattern layer 255 is the same length as or longer than the resin layer 220 in the first direction X. It may be arranged in a long manner. The first pattern layer 255 is in the second direction Y of the resin layer 220 It can have a length D6 that is smaller than the length, for example, between the light-emitting element 100 and the first surface The distance D1 between S1 may be the same as or smaller than the first pattern layer 2 in the second direction. The length D6 of 55 can be 2 mm or more, for example, in the range of 2 mm to 10 mm. When wavelength conversion means is added to the first pattern layer 255, the wavelength conversion layer 250 is added The content of the wavelength conversion means may be less than the content of the first pattern layer 255 and the wavelength When wavelength conversion means are added to the conversion layer 250, for example, fluorescence that emits wavelengths of the same color is produced. It may be a body or / or quantum dots, or a material that emits wavelengths of different colors. The first pattern layer 255 allows some light that travels through the resin layer 220 in the direction of the first surface S1 to It can be transmitted and emitted as wavelength-converted light. The first pattern layer 255 is , disposed on the first region of the resin layer 220, and therefore the second reflective member 240 is located on the resin layer It is placed on the second region of 220. The first pattern layer 255 is the resin layer 220, front The first reflective member 230 and the substrate 210 can overlap in a perpendicular direction. The first pattern layer 255 does not have to overlap the light-emitting element 100 in a vertical direction. The pattern layer 255 can contact the upper surface of the resin layer 220. The first pattern layer 255 can contact the side surface of the second reflective member 240. The first pattern layer 255 is in contact with the upper surface of the wavelength conversion layer 250 or overlaps the wavelength conversion layer 250 perpendicularly. It can be. The thickness of the first pattern layer 255 is the thickness of the second reflective member 240. It may be the same as or thinner than the first surface S1. In this case, the light emitted through the first pattern layer 255 may be sub-light.

[0040] Here, the second reflective member 240 extends to a length that covers the upper surface of the light-emitting element 100. The distance D8 is extended from a straight line perpendicular to one end of the second reflective member 240 and the light-emitting surface 111. These may be provided in a range of 3 mm or more, for example, 3 mm to 6 mm. Since the front end of member 240 will cover the upper part of the light-emitting element 100, This reduces the area where hotspots occur in the surrounding region adjacent to 100. (Figure) In Figures 14 and 15, the length D6 of the first pattern layer 255 in the second direction Y is the distance D It can have a range of 1 to 2 times 8, for example, 5 mm or more, or 5 mm to 10 mm It can have a range of m. Such a first pattern layer 255 is on the light-emitting surface 111. By moving it away from a vertical line by the aforementioned distance D8, the incident surface light is guided and emitted. This is achieved, and hot spots are suppressed. Here, the second reflective member is formed on the upper surface of the resin layer 220. The area of ​​the first region where 240 is placed is the same as the area of ​​the second region where the first pattern layer 255 is placed. The area of ​​the second region is greater than or less than the area of ​​the first region, for example, the area of ​​the second region is 0 It can have a range of 0.6 to 1.3 times.

[0041] Figure 16 shows the structure of Figure 15, with a colored ink layer 252 further arranged on the outer surface of the wavelength conversion layer 250. The structure is as described above. The first pattern layer 255 is placed on the upper surface of the resin layer 220 or Contact or further placement on the upper surface of the wavelength conversion layer 250 and / or colored ink layer 252 It may also be used.

[0042] As shown in Figure 17, the first pattern layer 255 has a fixed shape or an irregular shape. It may be formed in a pattern. For example, the first pattern layer 255 may be polygonal, circular or This includes at least one line shape, or a shape in which multiple patterns are interconnected. In the past, the shape was one of intersecting lines, or a polygonal or circular pattern was connected to the lines. The first pattern may be formed by a line pattern that is continuous or discontinuous. Layer 255 has a honeycomb structure, mesh shape, lattice shape, multiple line shape, and multiple polygons. The first pattern can selectively include shapes, multiple elliptical shapes, multiple circular shapes, etc. The layer 255 has a pattern having a first shape, and a pattern having a second shape within the first shape. Turns may be included. The first and second shapes may be different from each other, or mutually different. They may have the same shape, and can be a continuously connected closed loop shape. Alternatively, it may be an open loop shape with discontinuous connections. The first pattern layer 255 may contain a plurality of holes OP1 inside. The upper surface of the resin layer 220 can be exposed through the hole OP1. The first putter The reflective layer 255 may be provided with a thickness thinner than the thickness of the second reflective member 240. The first pattern layer 255 has a patterned shape and is emitted through the first pattern layer 255. The shape of the sub-lights has various shapes to match the pattern shape, and the first surface S1 The shape of the main light emitted through, i.e., the light emitted through the wavelength conversion layer 250, is It can have a type.

[0043] The first pattern layer 255 does not need to overlap the second reflective member 240 in a perpendicular direction. i. The second region in which the first pattern layer 255 is formed on the upper surface of the resin layer 220 is the second The reflective member 240 does not need to overlap perpendicularly with the first region where it is formed. The reflective layer 255 can overlap the first reflective member 230 in a perpendicular direction.

[0044] As shown in Figures 17 and 18, the first pattern layer 255 is a wavelength conversion layer 250 or colored This first pattern layer may or may not be placed on top of the ink layer 252. The 255 patterns are formed by a printing method, selectively creating them on multiple resin layers. This is possible. In Figure 17, the length D10 of the second reflective member 240 in the second direction Y is The length D6 of the first pattern layer 255 may be greater than or less than the length D6. Here, the resin layer On the upper surface of 220, the length D6 of the first pattern layer 255 is the second of the second reflective member 240. The length D10 in the direction can be in the range of 0.6 to 1.3 times. That is, the second reflecting part Light guided within the resin layer 220 located at the bottom of material 240 is directed into the first pattern layer 255 It is emitted through the wavelength conversion layer 250.

[0045] As shown in Figures 19 and 20, the wavelength conversion layer 250 is on the outermost side of the first pattern layer 255. This can be covered. This is when the first pattern layer 255 is formed with a pattern. It can be separated, and the outside of the first pattern layer 255 is in contact with the inner surface of the wavelength conversion layer 250. It can be touched.

[0046] As shown in Figure 21, the second pattern layer 257 is placed on the first reflective member 230. The second pattern layer 257 is provided selectively from the material of the resin layer 220, and is a phosphor or / or The wavelength conversion means may include having at least one quantum dot. The length of the second pattern layer 257 is longer than the length of the first pattern layer 255. The second pattern layer 257 is on the first reflective member 230 and the light-emitting surface 11 It is positioned in the region between 1 and the wavelength conversion layer 250. The second pattern layer 257 is the light emission Further layers may be placed in the region between the elements 100. The second pattern layer 257 is formed The area may be larger than the area in which the first pattern layer 255 is formed. The turn layer 257 may be formed in a pattern having a fixed or irregular shape. For example, the second pattern layer 257 is at least one of polygonal, circular, or linear shapes. Including one, or including a shape in which multiple patterns are interconnected, the polygon or circular The pattern is connected to a line, or formed by a line pattern that is continuous or discontinuous. The second pattern layer 257 may have a honeycomb structure, a mesh shape, a grid shape, or multiple Selectively include line shapes, multiple polygonal shapes, multiple elliptical shapes, multiple circular shapes, etc. This is possible. The second pattern layer 257 has a pattern having a first shape, and the first The pattern may include a second shape within the shape. The first and second shapes are phases They may be different in shape or the same shape, and may be a continuously connected closed loop. Open Loop (d loop) has a shape or a discontinuous connection. ) The shape may be as follows. The second pattern layer 257 contains a plurality of holes OP2 inside. This is possible. The lower surface of the resin layer 220 can be exposed through the hole OP2. The second pattern layer 257 is provided with a thickness thinner than the thickness of the first reflective member 230. This is also acceptable. The second pattern layer 257 overlaps the first pattern layer 255 in a vertical direction. This is possible. The second pattern layer 257 is the first and second reflective members 230, 240 It can include regions that overlap vertically.

[0047] As shown in Figures 17 to 21, the pattern effect of the first pattern layer 255 is as shown in Figure 35. By providing a difference in luminosity between the light emitted through the hole and the light emitted through the pattern, various It can provide an image or give a replacement effect. On the ejection side of the resin layer 220 Either the wavelength conversion layer 250 is arranged, or the wavelength conversion layer 250 / colored ink layer 252 is laminated. It may include, and the first pattern layer 255 may be arranged on the ejection side peripheral region. First and second pattern layers 255 and 257 are arranged to provide the emission surface in various surface light configurations. It is possible.

[0048] As shown in Figures 22 and 23, the second pattern layer 257 is placed on the first reflective member 230. The second pattern layer 257 is selectively provided from the material of the resin layer 220, and is fluorescent. This may include wavelength conversion means having at least one of a body and / or quantum dots. The second pattern layer 257 may be provided as a pattern. Pattern 7 has multiple holes OP2, and the shape is either fixed or irregular. The pattern of the second pattern layer 257 is the same as that of the first pattern layer 2 The pattern may be the same as or different from the 55 pattern. The region on which the first pattern layer 255 is formed. The region and the region of the second pattern layer 257 can overlap vertically in at least part of their respective directions. This allows the pattern of the second pattern layer 257 and the pattern of the first pattern layer 255 to be formed. The turns, when viewed from above, are provided at mutually different depths, thus creating a reversal effect. This can be done. The first and second pattern layers 255 and 257 are on the upper surface of the resin layer 220. and is positioned on the lower surface. The wavelength conversion layer 250 is the first and second pattern layers 255, It is positioned on the outside or exit side of 257 and can emit the main light. As shown in Figure 23. In addition, a colored ink layer 252 is arranged outside the wavelength conversion layer 250. When the second pattern layer 257 is placed on the first reflective member 230, the resin layer 2 It may be embedded inside the lower surface of 20.

[0049] As shown in Figure 24, the upper surface of the resin layer 220 can be exposed without the second reflective member 240. The first pattern layer 255 may be formed in a pattern across the entire upper surface of the resin layer 220. The second pattern layer 257 is placed below the resin layer 220, but this is not the only option. No. As shown in Figure 25, the upper and lower surfaces of the resin layer 220 on the injection side can be exposed. The pattern of the first pattern layer 255 is arranged on the upper surface of the resin layer 220 on the ejection side, and the pattern of the first pattern layer 255 is arranged on the lower surface on the ejection side. The pattern of the second pattern layer 257 is arranged on the surface. The outer surface of the resin layer 220 has a wavelength variable Either a wavelength conversion layer 250 is placed, or a wavelength conversion layer 250 and a colored ink layer 252 are placed. The second pattern layer 257 does not need to overlap the light-emitting element 100 in a vertical direction. As shown in 26, the light-emitting element 100A may include a plurality of light-emitting surfaces. The surface can include a top surface and numerous side surfaces. Such a light-emitting element 100A flip This LED chip may be mounted on the substrate 210 as a type of LED chip or a vertical LED chip. Such a light-emitting element 100A can be selectively applied to the embodiments disclosed above.

[0050] Figure 27 shows that in the structures of Figures 3 and 5, the upper surface area of ​​the substrate 210 is below the resin layer 220. It is provided with an area larger than the surface area, and its edges can protrude outwards. Wavelength conversion Layer 250 or the colored ink layer 252 is on the first surface S1, third and fourth surfaces of the resin layer 220 They may be arranged throughout S3 and S4 respectively. That is, the wavelength conversion layer 250 disclosed above At least one of the colored ink layers 252 is placed on the third and fourth surfaces S3 and S4. The extended portions 250A and 250B of the wavelength conversion layer 250 may be included. The width D3 may be the same as or larger than the width D7 of the extensions 250A and 250B. The wavelength conversion layer 250 and / or the colored ink layer 252 are located beneath the second reflective member 240. This is an example of that.

[0051] Figure 28 shows the structure of Figures 14-20, with the wavelength conversion layer 250 and / or the colored ink layer 252. A first pattern layer 255, which has a pattern on its upper surface, is positioned on the ejection side of the resin layer 220. As shown in Figure 36, the inner line La of the first pattern layer 255 is a horizontal straight line. It may be a sine wave, or an uneven shape. The first pattern layer 255 The inner line La can come into contact with the second reflective member 240.

[0052] Figures 29 and 30 show a third embodiment in which a hemispherical protrusion P1 is located on the output side of the lighting module. This is an example of the arrangement. The lighting module has multiple hemispherical protrusions P1, and between the protrusions P1 It may include a recessed area C1. The maximum width of the hemispherical protrusion P1 is the diameter of the protrusion P1. It may be the same as the above. In such a structure, the wavelength conversion layer 250 or on the output side of the resin layer 220 / and a colored ink layer 252 may be selectively formed. Also, in such a structure, Even without the color ink layer 252, the wavelength conversion layer 250 alone removed the hot spots, resulting in a uniform surface. A linear light source can be realized. The first pattern disclosed above is placed on the convex portion P1. The layer 255 may be formed in a predetermined shape pattern. The pattern is applied to the light-emitting element 100. The protrusion may extend to an adjacent or upper region. The protrusion P1 provides a convex curved surface. Therefore, it is possible to refract the incident light into a specific region.

[0053] Figure 31 shows a modification of the structure when the lighting module or lighting device disclosed above is applied to a vehicle lamp. As shown in Figure 31, the lighting module or device 201 may be provided in a curved shape with reference to a horizontal straight line X0. This allows for connection in a curved lamp shape that extends the rear (or front) and sides of the vehicle when applied to a vehicle lamp. For the lighting module 201, the angle between the virtual straight line X2 connecting both ends of the first surface S1 from the straight line X0 may be an angle C2 in the range of 10 degrees to 60 degrees, and the virtual straight line X3 extending in the tangential direction from the first surface S1 disposed at one end of the lighting module 201 may be an angle C3 in the range of 5 degrees to 30 degrees. The virtual line connecting adjacent light-emitting elements 100 within the lighting module or device 201 can include a straight line, a slanted line, or a curve. On the first surface S1, which is the light-emitting surface, the wavelength conversion layer 250 may be disposed, or it may be disposed in a laminated structure of the wavelength conversion layer / colored ink layers 250 and 252. Also, the first pattern layer 255 or / and the second pattern layer 257 disclosed above may be disposed. When, as shown in Figure 31, the lighting module or device 201 is provided in a curved shape with reference to the horizontal straight line X0, it can be connected in a curved lamp shape that extends the rear (or front) and sides of the vehicle when applied to a vehicle lamp. This allows for connection in a curved lamp shape that extends the rear (or front) and sides of the vehicle when applied to a vehicle lamp. For the lighting module 201, the angle between the virtual straight line X2 connecting both ends of the first surface S1 from the straight line X0 may be an angle C2 in the range of 10 degrees to 60 degrees, and the virtual straight line X3 extending in the tangential direction from the first surface S1 disposed at one end of the lighting module 201 may be an angle C3 in the range of 5 degrees to 30 degrees. This allows for connection in a curved lamp shape that extends the rear (or front) and sides of the vehicle when applied to a vehicle lamp.​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ Figure 33 is an example of a module, and it is a diagram of the module as seen from the other side of Figure 32.

[0056] Referring to Figures 32 and 33, the light-emitting element 100 has a body 1 having a cavity 20. 0, a plurality of lead frames 30, 40, and the plurality of leads within the cavity 20 One or more light-emitting chips placed on at least one of the frames 30 or 40 Including 71. Such a light-emitting element 100 is in the position example of the light-emitting element disclosed in the above embodiment. Yes, and may be embodied as a side-emitting package. The light-emitting element 100 is in the first direction The length of X (or the length of the longer side) is 3 times or more, for example 4 times or more, than the width of the second direction Y. This is also acceptable. The length in the second direction Y is 2.5 mm or more, for example, in the range of 2.7 mm to 6 mm. The dimensions can be in the range of 2.5 mm to 3.2 mm. The light-emitting element 100 is first By providing a longer length in direction X, the number of light-emitting elements 100 in the first direction X can be reduced. This is possible. The light-emitting element 100 can be provided with a relatively thin thickness, and the light-emitting element 100 The thickness of the lighting device having the above-mentioned element can be reduced. The thickness of the light-emitting element 100 is 2 mm or less. The lower part can be, for example, 1.5 mm or less or in the range of 0.6 mm to 1 mm. The main body 10 is equipped with a cavity 20, and the length in the first direction X is 3 times the thickness of the main body 10. It can be more than double, and the directivity angle of light in the first direction X can be widened.

[0057] Multiple lead frames 30, 40 are arranged in the main body 10. Multiple lead frames 30 and 40 are arranged at the bottom of 0 and connected to the main body 10. The main body 10 may be made of an insulating material. The main body 10 may be made of a reflective material. The main body 10 is made of, for example, polyphthalamide (PPA). It can be made of a resin material such as lamide. The main body 10 is silicone-based or thermosetting resins containing epoxy or plastic materials or materials with high heat resistance and high light resistance It can consist of a material. The main body 10 includes a resin material to which a metal oxide has been added. The metal oxide contains at least one of TiO2, SiO2, and Al2O3. It is possible. The first side portion 15 of the main body 10 is the surface on which the cavity 20 is arranged. It may be a surface from which light is emitted. The second side portion of the main body 10 is the The opposite side or second side of the first side portion 15 may also be the first side portion 15. The first lead frame 30 is It includes a first lead portion 31, a first bonding portion 32, and a first heat dissipation portion 33. The second The lead frame 40 includes a second lead portion 41, a second bonding portion 42, and a second heat dissipation portion 43. The gap 17 between the first and second lead portions 31 and 41 is made of the same material as the main body 10. It can be. As another example, the main body 10 contains two or more or three lead files The frames are joined together, and one of them may be a heat dissipation frame. Here, the light-emitting chip P71 is, for example, positioned on the first lead portion 31 of the first lead frame 30, and the first The second lead sections 31 and 41 are connected by wires 72 and 73, or the first lead section 31 is bonded to them. The components are connected by a material and then connected to the second lead portion 41 by a wire. The light-emitting chip 71 is horizontal. The light-emitting chip 71 may be a chip, a vertical chip, or a chip having a via structure. The light-emitting chip 71 may be mounted in a flip-chip manner. It can selectively emit light within a wavelength range of a line. The light-emitting chip 71 can emit, for example, ultraviolet light or a blue peak wavelength. The light-emitting chip 71 can include at least one of II-VI group compounds and III-V group compounds. A plurality of the light-emitting chips 71 may be connected in series or a plurality of them may be connected in parallel. The light-emitting chip 71 can be selected, for example, from a red LED chip, a blue LED chip, a green LED chip, and a yellow green LED chip. A molding member 81 is disposed in the cavity 20 of the main body 11. The molding member 81 includes a translucent resin such as silicone or epoxy and may be formed in a single layer or multiple layers. On the molding member 81 or the light-emitting chip 71 described above, a phosphor for changing the wavelength of the emitted light can be included. As another example, a translucent film or / and an optical lens having a phosphor may be further formed on the cavity 20. In the light-emitting element semiconductor elements such as a light-receiving element and a protection element may be mounted. Referring to FIG. 33, at least one or a plurality of light-emitting elements 100 are disposed on a substrate 210, and a protection layer or / and a first reflecting member 230 are disposed around the lower part of the light-emitting element 100. The light-emitting element 100 emits light in the direction of the central axis Y0 and can be applied to the lighting device. The first and second lead portions 31 and 41 of the light-emitting element 100 are bonded to the electrode patterns 213 and 215 of the substrate 210 with solder or a conductive tape which are conductive adhesive members 217 and 219.

[0058] [[ENDEND]]

[0059] ​​​​​​​Figure 34 shows the flat surface of a vehicle to which a vehicle lamp to which a lighting module according to the embodiment is applied is applied. Figure 35 is a view drawing of a vehicle having a lighting module or lighting device disclosed in the embodiment. This is a diagram showing the lamp. Referring to Figures 34 and 35, in vehicle 900, the tail The lamp 800 consists of a first lamp unit 812, a second lamp unit 814, and a third lamp unit. The first lamp unit 816 may include a housing 810. 2 may be a light source that serves as a turn signal, and the second lamp unit 814 is The third lamp unit 816 may also be a light source for the purpose of a vehicle side marker light, and the brake light It may be a light source for the role of, but is not limited to, the above 1~ At least one or all of the third lamp units 812, 814, and 816 are, in the example. It may include the lighting device or module disclosed therein. The housing 810 is It houses the first to third lamp units 812, 814, and 816 and is made of a translucent material. Yes, it is possible. In this case, the housing 810 may have a curve depending on the design of the vehicle body. The first to third lamp units 812, 814, and 816 are shaped to fit the housing 810. Accordingly, a surface light source having a curved surface can be realized. Such a vehicle lamp is the lamp When the unit is applied to the vehicle's taillights, brake lights, or turn signal lamps, the vehicle's It can be applied to signal lamps.

[0060] The illumination device of the invention has a thin thickness and the luminous intensity of the light emitted through at least one side is This can be improved by providing wavelength-converted light through at least one side of the resin layer. The lighting device of the invention can be used by passing through at least one side, one side, or / or the other side of the resin layer. The invention can provide wavelength-converted light. The invention relates to the emission surface of the resin layer and adjacent to the emission surface. By extracting light that has been wavelength-converted through the contact surface and / or light emitted from the light-emitting element. This invention enables thin lighting modules or devices to provide surface light in the form of line light. Therefore, the degree of design freedom is increased, and the uniformity of light from the surface can be improved. The invention is to illuminate The optical reliability of the light module and the lighting device having the same can be improved. The reliability of a vehicle lighting device having a lighting module can be improved, and the lighting device It can be applied to light units, various display devices, or vehicle lamps.

[0061] The features, structure, and effects described in the above examples are those of at least one embodiment of the present invention. This includes and is not necessarily limited to a single embodiment. Furthermore, the features illustrated in each embodiment Characteristics, structure, effects, etc., are described by a person with ordinary skill in the field to which the examples belong, and may differ from those described in other examples. The examples can be combined or modified to implement the changes. The content described herein should be interpreted as being within the scope of the present invention.

Claims

1. circuit board and A plurality of light-emitting elements are arranged on the upper surface of the substrate, A resin layer placed on the substrate, A first reflective member is disposed between the upper surface of the substrate and the lower surface of the resin layer, A second reflective member and a first pattern layer are arranged in different regions on the upper surface of the resin layer, The resin layer includes a wavelength conversion layer disposed on the first surface of the resin layer, The resin layer includes a second surface opposite to the first surface, The resin layer has a length in the first direction that is greater than the width in the second direction perpendicular to the first direction. The first surface of the resin layer faces the respective light-emitting surfaces of the plurality of light-emitting elements in the second direction. The wavelength conversion layer is arranged along the first surface of the resin layer in the first direction, The first surface of the resin layer is the side surface between the upper and lower surfaces of the resin layer. The first reflective member, the resin layer, and the second reflective member overlap in a third direction perpendicular to the first and second directions. The second reflective member covers the upper surface of the resin layer, the region overlapping with the upper surface of each of the plurality of light-emitting elements in the third direction, the region between the plurality of light-emitting elements, and the region overlapping in the third direction. The second reflective member has a length in the first direction greater than its width in the second direction. The first pattern layer has a different material from the second reflective member. A lighting device in which the upper surface area of ​​the first pattern layer is smaller than the upper surface area of ​​the second reflective member.

2. The plurality of light-emitting elements are arranged in the first direction, The first and second reflective members do not face the respective light-emitting surfaces of the plurality of light-emitting elements in the second direction. The illumination device according to claim 1, wherein the wavelength conversion layer is separated from the second surface in the second direction.

3. The lighting device according to claim 1, wherein the lower inner surface of the wavelength conversion layer faces the side surface of the first reflecting member in the second direction.

4. The lighting device according to claim 3, wherein the lower surface of the wavelength conversion layer faces the upper surface of the substrate in the third direction.

5. The illumination device according to any one of claims 1 to 4, wherein the upper surface of the wavelength conversion layer faces the side or lower surface of the first pattern layer in the second direction.

6. The first reflective member is arranged on the upper surface of the resin layer in a region adjacent to the second surface rather than in a region adjacent to the first surface, The first pattern layer is positioned on its upper surface in an area adjacent to the first surface of the resin layer that is more adjacent to the second surface of the resin layer than the area adjacent to the first surface of the resin layer. The lighting device according to any one of claims 1 to 4, wherein at least one of the plurality of light-emitting elements is arranged to be adjacent to the second surface of the resin layer more adjacent to the first surface.

7. The lighting device according to any one of claims 1 to 4, wherein the wavelength conversion layer is in contact with at least two of the substrate, the first reflective member, the first surface of the resin layer, and the second reflective member.

8. The lighting device according to claim 7, wherein the wavelength conversion layer is in contact with the upper surface of the substrate, the side surface of the first reflective member, and the first surface of the resin layer.

9. The lighting device according to any one of claims 1 to 4, wherein the thickness of the wavelength conversion layer in the third direction is the same as or greater than the length in the third direction from the lower surface of the substrate to the upper surface of the second reflective member.

10. The lighting device according to any one of claims 1 to 4, wherein the minimum distance in the second direction between at least one light-emitting surface of the plurality of light-emitting elements and the first surface of the resin layer is in the range of 5 to 10 times the thickness of the resin layer in the third direction.

11. The second reflective member is disposed on the first region of the upper surface of the resin layer, The lighting device according to any one of claims 1 to 4, wherein the first region is a region on the upper surface of the resin layer that is more adjacent to the second surface of the resin layer than to the first surface of the resin layer.

12. The first pattern layer has a plurality of holes in which a part of the upper surface of the resin layer is exposed. The lighting device according to claim 11, wherein the first pattern layer and the plurality of light-emitting elements do not overlap in the third direction.

13. The lighting device according to claim 11, wherein the first pattern layer comprises at least one of a phosphor and ink particles.

14. The first pattern layer is arranged on the upper surface of the resin layer, on a second region adjacent to the first surface of the resin layer and the wavelength conversion layer. The lighting device according to claim 11, wherein the area of ​​the second region is smaller than the area of ​​the first region.

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