Light source, light-emitting module, and method for manufacturing a light source

Abstract

The objective is to provide a light source and light-emitting module with excellent light emission characteristics during partial illumination, as well as a method for manufacturing the light source. [Solution] A light source comprising: a plurality of light-emitting elements; a covering member disposed between the plurality of light-emitting elements and around the entire outer circumference of the plurality of light-emitting elements, holding the plurality of light-emitting elements collectively; a plurality of light-transmitting members having a plurality of first light-transmitting members disposed on each of the plurality of light-emitting elements, and at least one second light-transmitting member disposed on the covering member located around the entire outer circumference of the plurality of light-emitting elements; and a light-shielding member disposed between the covering member located around the entire outer circumference of the plurality of light-emitting elements and the second light-transmitting member.

Description

Technical Field

[0001] The present disclosure relates to a light source, a light emitting module, and a method for manufacturing a light source.

Background Art

[0002] In recent years, light sources in which a plurality of light emitting elements are two-dimensionally arranged have been used in various fields such as display devices, lighting devices, and flashes. Such a light source can perform partial irradiation that changes an irradiation area by driving an arbitrary part of the plurality of light emitting elements. For example, Patent Document 1 discloses a light source that can be used for a variable light distribution headlamp of a vehicle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present disclosure relates to a light source, a light emitting module having excellent light emission characteristics during partial irradiation, and a method for manufacturing a light source.

Means for Solving the Problems

[0005] The light source of the present disclosure includes a plurality of light emitting elements, a covering member that is disposed between the plurality of light emitting elements and on the entire outer periphery of the plurality of light emitting elements and holds the plurality of light emitting elements together, a plurality of light transmissive members including a plurality of first light transmissive members respectively disposed on the plurality of light emitting elements and at least one second light transmissive member disposed on the covering member located on the entire outer periphery of the plurality of light emitting elements, and a light shielding member disposed between the covering member located on the entire outer periphery of the plurality of light emitting elements and the second light transmissive member. The method for manufacturing a light source in this disclosure is: The process of preparing the translucent sheet, The process of forming grooves in the light-transmitting sheet and dividing the light-transmitting sheet into a plurality of light-transmitting members, A step of placing a light-emitting element on the surface of at least one of the translucent members divided by the groove, A step of placing a light-shielding member on the surface of at least one of the light-transmitting members adjacent to the at least one of the light-transmitting members on which the light-emitting element is placed, and on which the light-emitting element is not placed; A step of forming a laminate by arranging a covering member on the light-transmitting member, on the side of the light-emitting element and the light-shielding member, in the groove, between the light-shielding elements and between the light-shielding member and the light-emitting element, The process includes cutting the laminate for each of the at least one light-transmitting members on which the light-emitting element is placed, The cutting step includes cutting the laminate in such a way that it divides the light-transmitting member on which the light-shielding member is arranged. [Effects of the Invention]

[0006] According to embodiments of this disclosure, it is possible to provide a light source and a light-emitting module with excellent light emission characteristics during partial illumination. [Brief explanation of the drawing]

[0007] [Figure 1A] This is a schematic top view showing a light source according to one embodiment of the present disclosure. [Figure 1B] Figure 1A is a cross-sectional view along the line IB-IB. [Figure 2] This is a schematic top view illustrating the positional relationship between a light-emitting element and a covering member in a light source according to one embodiment. [Figure 3A] This is a schematic top view showing a modified example of a light-transmitting member in a light source according to one embodiment. [Figure 3B] This is a schematic top view showing another modified example of the light-transmitting member in a light source according to one embodiment. [Figure 4] This is a schematic cross-sectional view showing another example of a light source according to one embodiment. [Figure 5] It is a flowchart for explaining a method of manufacturing a light source according to an embodiment. [Figure 6A] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6B] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6C] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6D] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6E] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6F] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6G] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6H] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6I] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 6J] It is a manufacturing process diagram for explaining a method of manufacturing a light source according to an embodiment. [Figure 7] It is a schematic cross-sectional view showing a light-emitting module according to an embodiment of the present disclosure.

Mode for Carrying Out the Invention

[0008] The light-emitting device of an embodiment of the present disclosure will be described below with reference to the drawings. In the following description, terms indicating specific directions or positions (e.g., "up," "down," and other terms including these terms) will be used as needed. However, the use of these terms is for the purpose of facilitating the understanding of the invention with reference to the drawings, and the meaning of these terms does not limit the technical scope of the present invention. Parts with the same reference numerals appearing in multiple drawings indicate the same or equivalent parts or components. The embodiments shown below are illustrative examples of light sources, etc., for embodying the technical concept of the present invention, and do not limit the present invention to the following. The dimensions, materials, shapes, relative arrangements, etc., of the components described below are intended to be illustrative, not to limit the scope of the present invention unless specifically stated otherwise. The content described in one embodiment is applicable to other embodiments or modifications. The size and positional relationships of the components shown in the drawings may be exaggerated to clarify the explanation. To avoid the drawings becoming excessively complex, schematic diagrams or end views showing only a cross-section may be used, omitting the illustration of some elements. Furthermore, unless otherwise specified, the phrase "covering or enclosing the object to be covered" includes cases where the member directly covers the object by being in contact with it, and cases where the member indirectly covers the object without contact with it.

[0009] 〔light source〕 As shown in Figures 1A and 1B, the light source 10 of one embodiment comprises a plurality of light-emitting elements 1, a covering member 2 that holds the plurality of light-emitting elements 1 together, a plurality of light-transmitting members 3 having a plurality of first light-transmitting members 31 and one or more second light-transmitting members 32, and a light-shielding member 4 positioned between the covering member 2 and the second light-transmitting members 32 located on the overall outer circumference of the plurality of light-emitting elements 1.

[0010] This arrangement of the components effectively reduces unevenness in light emission from the light source. In particular, when only some of the multiple light-emitting elements of the light source, for example, one or a few light-emitting elements, are lit, the light emission state on each light-emitting surface (specifically the upper surface of the first translucent member 31) can be made uniform or nearly uniform regardless of the position of the lit light-emitting element (for example, the center or edge of the entire set of light-emitting elements), thereby reducing unevenness in light emission. Furthermore, light emitted from sides other than the upper surface of the light source 10 (specifically, light emitted from the side of the second translucent member 32) can be reduced. This reduces the amount of light emitted from the side of the light source 10 that would otherwise become unintended stray light or leakage light and be directed upward (i.e., towards the light extraction side of the light source).

[0011] The overall outer perimeter of the multiple light-emitting elements refers to the area surrounding the contour (dashed line Q) connecting the outer sides 1s of the outermost light-emitting elements 1g, as shown in Figure 2, in a top view where multiple light-emitting elements are arranged in a rectangular matrix. In other words, in a top view, it refers to the area outside the overall outer edge (dashed line Q) of the multiple light-emitting elements 1, up to the end of the covering member 2, which will be described later. Figure 2 is a diagram of the light source 10 with the light-transmitting member 3 and light-shielding member 4 omitted, showing the positional relationship between the light-emitting elements and the covering member 2, and an example of the area where the light-shielding member 4 is arranged.

[0012] (light-emitting element 1) The light source 10 comprises a plurality of light-emitting elements 1. The plurality of light-emitting elements 1 are arranged in two dimensions and may be randomly or regularly arranged. In particular, a regularly arranged arrangement is preferred, and a matrix arrangement is more preferred. For example, it is preferable that they be arranged in a matrix along two orthogonal directions. The arrangement pitch in each direction may be the same or different. For example, the plurality of light-emitting elements 1 may be arranged such that the spacing widens from the center to the outer edge. In particular, it is preferable that the plurality of light-emitting elements 1 are arranged regularly and at equal intervals along mutually orthogonal x and y directions, as shown in Figure 1A. Figure 1A shows an example in which 5 × 6 plurality of light-emitting elements 1 are arranged. The plurality of light-emitting elements 1 can be arranged in any desired number, such as 5 × 5 or 7 × 9. The arrangement pitch of the light-emitting elements can be appropriately set depending on the size of the light-emitting elements, the size of the first light-transmitting member, etc. For example, if the length in the x-direction, such as one side or diameter of the light-emitting element, is 100 μm or more and 1000 μm or less, the pitch Px in the x-direction can be 110 μm or more and 2000 μm or less. Similarly, the pitch Py in the y-direction can range from 110 μm to 2000 μm. The distances Dx and Dy may be different or the same.

[0013] The light-emitting element 1 is a semiconductor light-emitting element, and known light-emitting elements such as semiconductor lasers and light-emitting diodes can be used. For example, the light-emitting element 1 is a light-emitting diode. The wavelength of the light emitted from the light-emitting element 1 can be selected to any wavelength. For example, as a light-emitting element that emits light with wavelengths from blue to green, ZnSe, nitride semiconductor (In x Al y Ga 1-x-yA device using GaP (where N is 0 ≤ x, 0 ≤ y, x + y < 1) can be used. In addition, a semiconductor light-emitting element containing semiconductors such as GaAlAs and AlInGaP can be used as a light-emitting element that emits red wavelength light. Furthermore, a semiconductor light-emitting element formed from materials other than those listed above can also be used as light-emitting element 1. The composition of the semiconductor used, the emission color of the light-emitting element, its size, and the number of elements can be appropriately selected according to the purpose and design specifications. Multiple light-emitting elements may all emit light of the same color, or some or all of them may emit light of different colors.

[0014] The light-emitting element 1 includes, for example, a translucent support substrate and a semiconductor structure on the support substrate. The semiconductor structure includes an n-side semiconductor layer, a p-side semiconductor layer, and a light-emitting layer sandwiched between the n-side semiconductor layer and the p-side semiconductor layer. The light-emitting layer may be a single quantum well (SQW) structure or a multiple quantum well (MQW) structure including multiple well layers. Preferably, the light-emitting element 1 includes a plurality of semiconductor layers made of nitride semiconductors as the semiconductor structure. The nitride semiconductor is In x Al y Ga 1-x-y The semiconductor comprises all compositions in which the composition ratios x and y are varied within their respective ranges in the chemical formula N (0 ≤ x, 0 ≤ y, x + y < 1). The emission peak wavelength of the light-emitting layer can be appropriately selected depending on the purpose. The light-emitting layer is configured to emit, for example, visible light or ultraviolet light.

[0015] Examples of support substrates include insulating substrates such as sapphire and semiconductor substrates such as gallium nitride. It is preferable to use a light-transmitting material, such as sapphire, for the support substrate.

[0016] The light-emitting element 1 may have one semiconductor structure on one support substrate, or it may have multiple semiconductor structures on one support substrate. Furthermore, one semiconductor structure may have only one light-emitting layer, or it may have multiple light-emitting layers. A semiconductor structure having multiple light-emitting layers may have a structure in which multiple light-emitting layers are included between one n-side semiconductor layer and one p-side semiconductor layer, or it may have a structure in which a structure in which an n-side semiconductor layer, a light-emitting layer, and a p-side semiconductor layer are included in sequence is repeated multiple times.

[0017] The light-emitting element 1 comprises electrodes 1n and 1p. The light-emitting element 1 has an upper surface (hereinafter also referred to as the light-emitting surface), which is the main light-emitting surface of the light-emitting element 1, and a lower surface located on the opposite side of the upper surface. The light-emitting element 1 may have positive and negative electrodes on the same side, or it may have positive and negative electrodes on different sides. In particular, it is preferable that the light-emitting element 1 has positive and negative electrodes 1p and 1n on its lower surface. The positive and negative electrodes 1p and 1n are electrically connected to the p-side semiconductor layer and the n-side semiconductor layer, respectively. With this arrangement of electrodes, the light-emitting element can be flip-chip mounted on a wiring board.

[0018] The light-emitting element may have a planar shape that is a polygon such as a triangle, square, or hexagon, or it may be circular or elliptical. Among these, a rectangular shape is preferred. In this specification, a rectangle includes both rectangles and squares. The size of the light-emitting element can be appropriately set depending on the desired performance of the light source 10. For example, the shape of the top surface can be a rectangle of 100 μm to 1000 μm × 100 μm to 1000 μm, and a rectangle of 150 μm to 500 μm × 150 μm to 500 μm is preferred. This makes it possible to miniaturize a light source equipped with multiple light-emitting elements.

[0019] For example, it is preferable that the multiple light-emitting elements 1 are each rectangular in a top view and are arranged in a rectangular matrix as a whole. The multiple light-emitting elements 1 may all be the same size and shape, or some or all may be of different sizes and / or shapes. The multiple light-emitting elements 1 may all have the same semiconductor structure, or some or all may have different semiconductor structures.

[0020] (Covering member 2) The covering member 2 holds multiple light-emitting elements 1 together. The covering member 2 has the function of protecting the multiple light-emitting elements 1. The covering member 2 preferably has light-shielding properties, and more preferably has light reflectivity and / or light absorption properties. In particular, it is preferable that it has high light reflectivity with respect to the light emitted from the light-emitting elements 1. This allows light emitted from the sides of the light-emitting elements 1 to be reflected and extracted from the top, resulting in a light source with better light extraction efficiency. Specifically, the covering member 2 preferably has a reflectivity of 60% or more with respect to the light emitted from the light-emitting elements, and more preferably has a reflectivity of 80% or more.

[0021] The covering member 2 is positioned between the multiple light-emitting elements 1 and around the entire outer circumference of the multiple light-emitting elements 1. This allows the covering member 2 to hold the multiple light-emitting elements 1 together. Furthermore, the covering member 2 exposes the upper surfaces of the multiple light-emitting elements 1. In addition, as shown in Figure 1B, it is preferable that the covering member 2 covers the lower surfaces of the light-emitting elements 1 that are exposed from the positive and negative electrodes of the light-emitting elements 1. This allows light emitted from the light-emitting elements to be efficiently extracted from the light-emitting surface. However, the covering member 2 exposes the lower surfaces of the electrodes.

[0022] When the light-emitting element 1 is mounted on a wiring board, especially when it is flip-chip mounted, a covering member 2 may be placed between the light-emitting element 1 and the wiring board, that is, between the lower surface of the light-emitting element 1 and the upper surface of the wiring board. This allows the light emitted from the light-emitting element 1 towards the wiring board to be reflected and removed from the light-emitting surface.

[0023] As described above, the covering member 2 is preferably arranged around the entire outer circumference of the plurality of light-emitting elements 1, having a predetermined width (Wx, Wy in Figure 2) in the x-direction or y-direction from the side surface 1s of the light-emitting elements 1. Here, the predetermined widths Wx and Wy are preferably, for example, the distance Dx and Dy between the plurality of light-emitting elements or greater. This allows light emitted from the side surface of the light-emitting elements located outside the entire plurality of light-emitting elements to be reflected and emitted from the top surface, thereby reducing light leakage from the sides of the light source. The widths Wx and Wy can both be, for example, in the range of 5% to 200% of the width of the light-emitting elements in the same direction.

[0024] The coating member 2 is preferably made of an insulating material. The coating member 2 is, for example, a member made of a translucent resin containing particles of a light-reflecting substance. Examples of resins include silicone resin, modified silicone resin, epoxy resin, modified epoxy resin, acrylic resin, and fluororesin, one or more of which are included. Among these, it is particularly preferable to use a silicone resin that has excellent light resistance, heat resistance, electrical insulation properties, and flexibility. Examples of light-reflecting substances include titanium dioxide, aluminum oxide, silicon dioxide, zinc oxide, zirconium oxide, magnesium oxide, potassium titanate, barium titanate, silicon nitride, aluminum nitride, boron nitride, calcium carbonate, calcium hydroxide, calcium silicate, and combinations thereof. Among these, from the viewpoint of light reflection, it is preferable to use titanium dioxide, which has a relatively high refractive index. The average particle size of the light-reflecting substance is, for example, 0.05 μm to 30 μm. The coating member 2 may also contain light-absorbing substances such as pigments, carbon black, and titanium black, and wavelength-converting substances such as phosphors. In the coating member 2, it is preferable that particles of a light-reflective substance are dispersed in the resin.

[0025] (Translucent member 3) The light-transmitting member 3 includes a plurality of first light-transmitting members 31, each of which is positioned on top of a plurality of light-emitting elements 1, and at least one second light-transmitting member 32, which is positioned on top of a covering member 2 located outside the overall outer circumference of the light-emitting elements 1. The light-transmitting member 3 has an upper surface and a lower surface opposite to the upper surface, and is positioned so that the upper surface is on the side of the light-extracting surface of the light source.

[0026] The first light-transmitting member 31 is placed on the light-emitting element 1. The size of the first light-transmitting member 31 may be smaller, the same as, or larger than the light-emitting surface of the light-emitting element 1 when viewed from above. In particular, it is preferable that it is the same as or larger than the light-emitting surface of the light-emitting element 1. This allows light emitted from the light-emitting element 1 to be efficiently incident onto the first light-transmitting member 31. When viewed from above, it is preferable that the first light-transmitting member 31 has the same shape or a similar shape to the light-emitting surface of the light-emitting element. For example, as shown in Figure 1A, when viewed from above, it is preferable that the first light-transmitting member 31 is larger than the light-emitting surface of the light-emitting element and is placed on the light-emitting element so as to enclose it. Multiple first light-transmitting members 31 may all be the same size and shape, or some or all may be of different sizes and / or shapes. Also, when viewed from above, the size of the first light-transmitting member 31 may be the same as or smaller than the light-emitting surface of the light-emitting element, in part or in whole. The area of ​​the first translucent member 31 in a top view is, for example, 80% to 150% of the area of ​​the light-emitting element, and preferably 100% to 130%. The first translucent members 31 are preferably arranged on a plurality of light-emitting elements 1 in the same way as the arrangement of the light-emitting elements. For example, the distance dx between adjacent first translucent members 31 in the x direction and the distance dy between adjacent first translucent members 31 in the y direction are preferably smaller than the distances Dx and Dy between adjacent light-emitting elements. This reduces the separation distance between the first translucent members 31 located on the light-emitting surface side, thereby reducing the low-luminance region between adjacent first translucent members 31. For example, the distances dx and dy are 5% to 50% of the length of one side of the light-emitting element. Specifically, the distances dx and dy are 10 μm to 100 μm, respectively. The distances dx and dy may be the same or different. As shown in Figure 3A, for example, the multiple light-transmitting members 3, the multiple first light-transmitting members 31, can be arranged in a rectangular matrix when viewed from above, similar to the arrangement of light-emitting elements.

[0027] The light source 10 includes at least one second translucent member placed on a covering member 2 that is arranged around the entire outer circumference of the light-emitting element 1. There may be at least one second translucent member 32 on the covering member 2, or there may be multiple second translucent members. The second translucent members 32 are not placed on the light-emitting element 1. When a plurality of first translucent members 31 are arranged in a rectangular shape as a whole in a top view, it is preferable that one or more second translucent members 32 are placed along the outer circumference of that rectangle. For example, as shown in Figure 1A, the light source 10 includes a plurality of second translucent members 32, and the plurality of second translucent members 32 may be arranged in the x and y directions on the covering member 2 that is arranged around the entire outer circumference of the light-emitting element 1, similar to the arrangement of the first translucent members 31 placed on the light-emitting element 1. In this case, the second translucent members 32 may have the same shape and size as the first translucent members 31, or they may have a different shape and size from the first translucent members 31. For example, the first translucent member 31 may be rectangular, and the second translucent member may be rectangular in shape with a different width in the direction of arrangement from the adjacent first translucent member. In this case, in a top view, the length of one side in the x-direction of the second translucent member 32 adjacent to the first translucent member 31 in the x-direction is preferably 5% to 100% of the length of one side in the x-direction of the adjacent first translucent member, and more preferably 25% to 75%. In this case, the length of one side in the y-direction of the second translucent member 32 adjacent to the first translucent member 31 in the x-direction is preferably 100% or more of the length of one side in the y-direction of the adjacent first translucent member. For example, as shown in Figure 1A, the length of one side (Lx2) of the second translucent member 32 in one arrangement direction (hereinafter referred to as the x-direction) is preferably 5% to 100% of the length of one side (Lx1) of the first translucent member 31 in the x-direction, which is arranged adjacent to it in the arrangement direction perpendicular to the x-direction (hereinafter referred to as the y-direction). Furthermore, in a plan view, the length of one side (Ly2) of the second translucent member 32 in the y-direction is preferably 5% to 100% of the length of one side (Ly1) of the first translucent member 31 in the y-direction, which is arranged adjacent to it in the y-direction, in a plan view.Furthermore, it is preferable that the length of one side in the y-direction of the second translucent member 32 adjacent to the first translucent member 31 in the x-direction be 100% or more of the length of one side in the y-direction of the adjacent first translucent member. Also, it is preferable that the length of one side in the x-direction of the second translucent member 32 adjacent to the first translucent member 31 in the Y-direction be 100% or more of the length of one side in the x-direction of the adjacent first translucent member. This makes it possible to approximate the spread of light in the X-direction of the first translucent member adjacent to the second translucent member 32 as that of the first translucent member not adjacent to the second translucent member 32.

[0028] From a similar viewpoint, it is preferable that the distance between adjacent first translucent member 31 and second translucent member 32 in the x and / or y directions on the light-emitting surface of the light source is the same distance dx and / or dy between adjacent first translucent member 31 in the x and / or y directions. The thicknesses of the first translucent member 31 and the second translucent member 32 (i.e., the shortest distance from the bottom surface to the top surface) may be different, but they may also be the same thickness. In particular, it is preferable that the first translucent member 31 and the second translucent member 32 are the same thickness. This makes it possible to make the light emission state substantially the same when only the light-emitting elements in the center or at the edges of the entire group of light-emitting elements are lit, thereby reducing unevenness in light emission.

[0029] Furthermore, as shown in Figures 3A and 3B, the second light-transmitting member 32A may be arranged in a frame shape on the covering member 2, which is placed on the outer circumference of the entire light-emitting element 1, so as to surround the entire light-emitting element 1. In this case, the second light-transmitting member 32A may differ in shape and size from the first light-transmitting member 31.

[0030] It is preferable that one or more second light-transmitting members 32 are arranged around the overall outer circumference of the plurality of first light-transmitting members 31 when viewed from above. Specifically, it is preferable that they are arranged around the outer circumference of the plurality of first light-transmitting members 31 which are arranged in a rectangular matrix as a whole, forming a rectangular frame as a whole. In this case, as shown in Figure 1B, the second light-transmitting members 32 may have a side surface 32S that is exposed from the covering member 2 and constitutes the outer surface of the light source.

[0031] In the light source 10, the upper surfaces of the multiple first translucent members 31 and second translucent members 32 are all exposed from the covering member 2. On the upper surface of the light source 10, it is preferable that the covering member 2 is arranged between adjacent first translucent members 31, between adjacent second translucent members 32, and between adjacent first translucent members 31 and second translucent members 32. In this case, the opposing sides of adjacent first translucent members 31 and second translucent members 32 may be covered by the covering member 2 only in part in the thickness direction, or the entire surface in the thickness direction may be covered by the covering member 2. In particular, it is preferable that the entire surface in the thickness direction is covered by the covering member 2. For example, the upper surface of the covering member 2 and the upper surfaces of the multiple first translucent members 31 and second translucent members 32 can be flush. In the light source 10, the second light-transmitting member 32 has sides that do not face the first light-transmitting member 31 or the second light-transmitting member 32, i.e., sides that face outward from the light source, which are not covered by the covering member 2. In other words, the second light-transmitting member 32 has a side 32S that is exposed from the covering member 2 and constitutes the outer surface of the light source.

[0032] The light-transmitting member 3 is a member that transmits at least a portion of the light emitted from the light-emitting element 1 to the outside. The light-transmitting member 3 is one that transmits 60% or more of the light emitted from the light-emitting element, and it is preferable that it transmits 70% or more, 75% or more, or 80% or more of the light. A plate shape is also preferred.

[0033] The light-transmitting member 3 has an upper surface that serves as the light-emitting surface of the light source, a lower surface opposite to the upper surface, and a side surface between the upper and lower surfaces. The lower surface of the first light-transmitting member 31 is positioned opposite the upper surface of the light-emitting element 1, and the lower surface of the second light-transmitting member 32 is positioned opposite the upper surface of the light-shielding member 4 and / or the covering member 2 located on the outer periphery of the entire light-emitting element 1, which will be described later. The upper surface of the light-transmitting member 3 may be a flat surface parallel to the lower surface, or part or all of the upper surface may have a surface that is not parallel to the lower surface. The light-transmitting member 3 may have a fine uneven structure on part or all of its surface. The side surface of the light-transmitting member 3 may be a surface perpendicular to the upper and / or lower surface, or it may be inclined with respect to the upper and / or lower surface. It may also have a step between the upper and lower surfaces. For example, the upper surface of the light-transmitting member 3 may have a larger area than the lower surface, the same area as the lower surface, or a smaller area than the lower surface. For example, by making the area of ​​the upper surface of the translucent member 3 smaller than the area of ​​the lower surface, the area of ​​the light-emitting surface is narrowed, making it possible to create a light source 10 that can emit higher brightness light.

[0034] The light-transmitting member 3 may be made of any of the following materials: an inorganic material such as glass, ceramics, or sapphire; an organic material such as a resin containing one or more of silicone resins, modified silicone resins, epoxy resins, modified epoxy resins, acrylic resins, or fluororesins; or a hybrid resin. The light-transmitting member 3 may contain a phosphor capable of wavelength conversion of at least a portion of the incident light. Examples of light-transmitting members 3 containing a phosphor include a sintered phosphor body or a material containing phosphor powder as described above. Alternatively, the light-transmitting member 3 may be a light-transmitting plate, which is a molded body of resin, glass, ceramics, etc., with a light-transmitting layer such as a resin layer containing a phosphor and / or a glass layer containing a phosphor arranged on its surface. Depending on the purpose, the light-transmitting member 3 may contain fillers such as diffusing materials. If the light-transmitting member 3 contains a filler such as a diffusing material, it may be made by incorporating the filler into a resin, glass, ceramics, or other inorganic material, or it may be made by arranging a light-transmitting layer such as a resin layer containing the filler or a glass layer containing the filler on the surface of a light-transmitting plate which is a molded body of resin, glass, ceramics, etc.

[0035] As the phosphor, phosphors known in the field can be used, such as yttrium-aluminum-garnet phosphors, lutetium-aluminum-garnet phosphors, terbium-aluminum-garnet phosphors, CCA phosphors, SAE phosphors, chlorosilicate phosphors, silicate phosphors, oxynitride phosphors such as β-sialon phosphors or α-sialon phosphors, nitride phosphors such as LSN phosphors, BSESN phosphors, SLA phosphors, CASN phosphors or SCASN phosphors, fluoride phosphors such as KSF phosphors, KSAF phosphors or MGF phosphors, quantum dots having a perovskite structure, group II-VI quantum dots, group III-V quantum dots, or quantum dots having a chalcopyrite structure.

[0036] The multiple first light-transmitting members 31 in the light source 10 may not all contain phosphors, or they may contain phosphors in some or all of them. When the light source 10 is equipped with multiple first light-transmitting members 31 containing phosphors, some or all of the multiple first light-transmitting members 31 containing phosphors may contain the same phosphor, or some or all may contain different phosphors. For example, all of the multiple first light-transmitting members 31 equipped with the light source 10 may contain phosphors that are excited by blue light and emit yellow light. Alternatively, some of the multiple first light-transmitting members 31 equipped with the light source 10 may contain phosphors that are excited by blue light and emit yellow light, while other parts may contain phosphors that are excited by blue light and emit orange light. By adjusting the type or amount of phosphors to be contained in the first light-transmitting members 31, light of a desired color can be emitted from the upper surface of the first light-transmitting members 31.

[0037] The light-transmitting member 3 may contain a light-diffusing substance. Examples of light-diffusing substances include particles of titanium oxide, aluminum oxide, silicon oxide, and zinc oxide. By dispersing such a light-diffusing substance within the light-transmitting member, or by providing a layer containing such particles within the light-transmitting member, the light emitted from the light-emitting element 1 can be diffused and released to the outside. This reduces uneven light emission on the upper surface of the light-transmitting member 3.

[0038] On the upper surface of the light source 10, the distances between adjacent translucent members 3 may differ or be the same between adjacent first translucent members, between adjacent first translucent members and second translucent members, and between adjacent second translucent members. For example, the distance between adjacent translucent members 3 may be in the range of 10 μm to 200 μm, preferably in the range of 30 μm to 100 μm, and more preferably in the range of 40 μm to 80 μm.

[0039] In the light source 10, the multiple light-transmitting members 3 are arranged as first light-transmitting members 31 on the multiple light-emitting elements 1, and as second light-transmitting members 32 on the light-shielding members and / or covering members located on the overall outer perimeter of the multiple light-emitting elements 1. As a result, when the light source 10 is viewed from the light-emitting surface side, the covering members 2 on the outer perimeter are less conspicuous compared to a light source where the covering members 2 are arranged around the entire outer perimeter, thereby improving the design of the light source. In particular, the difference in appearance color between the light-transmitting members 3 and the covering members 2 when the light source 10 is not lit is reduced, making it possible to create a light source with an excellent appearance. A light source with an excellent appearance refers to, for example, a light source with a simple appearance with few colors. For example, when the light source is used as a flash light source in a mobile communication terminal, the light source can be seen from the outside of the casing. In this case, if the light source has a simple appearance, the design freedom of the mobile communication terminal is improved without impairing the overall appearance of the mobile communication terminal.

[0040] Furthermore, by including a second light-transmitting member 32 in the light source 10, the light transmitted through the first light-transmitting member 31 when the inner light-emitting element 1 is lit and the light transmitted through the first light-transmitting member 31 when the outer light-emitting element 1 is lit can be approximated in terms of the light spread on the light-emitting surface side. As a result, when a specific light-emitting element among the multiple light-emitting elements is lit, a light source can be obtained in which the light spread at the outer and inner light-emitting elements is equivalent.

[0041] (Light-shielding member 4) The light-shielding member 4 is positioned between the covering member 2, which is located on the outer circumference of the multiple light-emitting elements 1, for example, in the portion surrounding the contour (dashed line Q) connecting the outer side surfaces 1s of the outer light-emitting elements 1g as shown in Figure 2, and the second light-transmitting member 32.

[0042] The light-shielding member 4 may be positioned around the entire circumference of the multiple light-emitting elements 1 between the covering member 2 and the second light-transmitting member 32 located in the area surrounding the dashed line Q, or it may be positioned only around a portion of the circumference. For example, as shown in Figure 2, the light-shielding member 4 may be positioned at the corner of the light source 10 in a top view (i.e., below the corner 32C of the second light-transmitting member 32 which is arranged in a rectangular frame shape), or it may be positioned below the corner 32C, as well as below one or more second light-transmitting members 32D adjacent to the corner 32C. If positioned around the entire circumference, it may be positioned over the entire width (Wx and / or Wy in Figure 2) from the side surface 1s of the light-emitting element 1 in the x and / or y directions between the covering member 2 and the second light-transmitting member 32 located in the area surrounding the dashed line Q, or it may be positioned over only a portion of the width Wx and / or width Wy. Furthermore, if the light-shielding member 4 is placed only on a portion of the entire circumference, it may be placed on the entire width Wx and width Wy, or on only a portion of the width Wx and / or width Wy. For example, in the corner 32C of the portion surrounding the dashed line Q, it may be placed on all or only a portion of the width Wx and / or width Wy. In any case, it is preferable that the light-shielding member 4 is placed so as to be exposed on the outside of the covering member 2 located in the portion surrounding the dashed line Q (i.e., the side surface of the light source 10). In other words, it is preferable that the light-shielding member 4 is exposed from the covering member 2 and the second light-transmitting member 32 and has a side surface that constitutes the outer surface of the light source 10. This makes it possible to absorb stray light such as reflected light and reduce the amount of stray light emitted to the outside.

[0043] The thickness of the light-shielding member 4 may be uniform throughout, or it may vary in parts. For example, as shown in Figure 1B, the light-shielding member 4 may have a convex shape towards the covering member 2 side such that its thickness increases toward the outside of the light-emitting module. In other words, the thickness of the light-shielding member 4 on the light-emitting element 1 side may be thinner than the thickness on the outer circumference side. This allows the thickness of the covering member covering the side of the light-emitting element 1 to be increased, so that the light emitted from the side of the light-emitting element 1 can be efficiently reflected and efficiently extracted from the light-emitting surface. The maximum thickness of the light-shielding member 4 is 50 nm to 200 nm, and the minimum thickness is 0% to 70% of the maximum thickness. In order to efficiently reflect the light emitted from the side of the light-emitting element 1 as described above, it is preferable that the maximum thickness of the light-shielding member 4 is smaller than the thickness of the light-transmitting member 3.

[0044] The light-shielding member 4 can be made of the same material as that used to make up the covering member 2. In particular, it is preferable to use a material that is darker in color (i.e., has lower brightness) than the material used to make up the covering member 2, for example, black or gray, and it is preferable that it contains a light-absorbing substance such as carbon black or titanium black. It is also preferable to use a material that is harder than the covering member 2.

[0045] In this way, by providing the light source 10 with a second light-transmitting member 32 and a light-shielding member 4 on the outer circumference of the light-emitting element 1, it becomes possible to reduce brightness unevenness between each light-emitting element during partial illumination.

[0046] (Light diffusing layer 9) In one embodiment, the light source 10 may further include a light diffusion layer 9 that covers the upper surface of the translucent member 3. As shown in Figure 4, the light source 10 may have a light diffusion layer 9 that integrally covers all of the first translucent member 31 and the second translucent member 32 on the upper surface of the light source 10A, or, as shown in Figure 6J, it may have multiple light diffusion layers 9 that cover the upper surfaces of the first translucent member 31 and the second translucent member 32, respectively. When the light source 10 includes a light diffusion layer 9 that integrally covers all of the first translucent member 31 and the second translucent member 32, it is preferable that the light diffusion layer 9 covers the upper surface of the light source 10A in one place, including the covering member 2 between the translucent members 3. This makes it possible to reduce the visibility from the outside as a low-brightness area in the non-emitting area between adjacent light-emitting areas when adjacent light-emitting areas 1 are lit. When the light source 10 includes a plurality of light-diffusing layers 9 that cover the upper surfaces of the first light-transmitting member 31 and the second light-transmitting member 32, it is preferable that the upper surface of the covering member 2 and the upper surfaces of the plurality of light-diffusing layers 9 are flush. This reduces the propagation of light to the light-diffusing layer covering the other light-emitting element 1 that is turned off when one of the adjacent light-emitting elements 1 is turned on and the other is turned off.

[0047] The light diffusion layer 9 has the function of diffusing and guiding the light emitted from the light-emitting element 1. The light diffusion layer 9 may be a single layer or may have a laminated structure including multiple layers. The light diffusion layer 9 has, for example, a total light transmittance (Tr) of 30% to 99% and a diffusivity (D) of 10% to 90%. The thickness of the light diffusion layer 9 is typically between 10 μm and 200 μm.

[0048] The light diffusion layer 9 may be in contact with the upper surfaces of the covering member 2 and the light-transmitting member 3, or it may be positioned at a distance from the upper surfaces of the covering member 2 and the light-transmitting member 3. For example, as shown in Figure 4, the light diffusion layer 9 may have a light-transmitting adhesive layer or the like as an adhesive layer 5 between it and the upper surfaces of the covering member 2 and the light-transmitting member 3. In particular, it is preferable that the lower surface of the light diffusion layer 9 is in direct contact with the upper surfaces of the covering member 2 and the light-transmitting member 3. This allows light from the light-emitting element 1 to be efficiently introduced into the light diffusion layer 9, thereby improving the light extraction efficiency.

[0049] The light-diffusing layer 9 comprises a light-transmitting resin and a light-diffusing substance contained in the light-transmitting resin. The same materials used for the light-transmitting resin and light-diffusing substance in the light-transmitting member 3 can be used for the light-transmitting resin and light-diffusing substance. Furthermore, resins that absorb little visible light, such as polycarbonate resin, polystyrene resin, and polyethylene resin, may also be used. The surface of the light-diffusing layer 9 may be flat or may have fine irregularities.

[0050] (Wiring board 50) As shown in Figure 4, the light source 10A of one embodiment may be located on a wiring board 50 on which a plurality of light-emitting elements 1 are arranged. The wiring board 50 may have at least the upper surface of wiring 51 connected to the light-emitting element 1 and a base 52 supporting the wiring 51. The wiring board 50 may be a flexible printed circuit board (FPC) that can be manufactured using a roll-to-roll method, a substrate that is thin enough to be bendable, or a rigid substrate.

[0051] As the substrate 52, for example, ceramics such as aluminum oxide, aluminum nitride, silicon nitride, and mullite; thermoplastic resins such as PA (polyamide), PPA (polyphthalamide), PPS (polyphenylene sulfide), and liquid crystal polymers; and resins such as epoxy resins, silicone resins, modified epoxy resins, urethane resins, and phenolic resins can be used. Among these, it is preferable to use ceramics that have excellent heat dissipation properties.

[0052] The wiring 51 may be located not only on the upper surface of the substrate 52 but also on the lower surface. The wiring 51 on the upper and lower surfaces may be connected via wiring located on the sides, or via internal layer wiring such as vias. Furthermore, the wiring 51 may have different thicknesses in parts. The wiring can be formed by electroplating, electroless plating, sputtering, vapor deposition, etc. Examples of materials for the wiring 51 include metals such as iron, copper, nickel, aluminum, gold, platinum, titanium, tungsten, and palladium, or alloys containing these materials.

[0053] [Method for manufacturing the light source 10] A method for manufacturing the light source 10 according to one embodiment, as shown in Figure 5, includes the steps of preparing a light-transmitting sheet (S1), forming grooves in the light-transmitting sheet and dividing it (S2), placing a light-emitting element (S3), arranging a light-shielding member on the light-transmitting member (S4), arranging a covering member (S5), and cutting each light-transmitting member (S6).

[0054] (S1: Preparation of the translucent sheet) First, a translucent sheet 6 is prepared as shown in Figure 6A. The translucent sheet 6 can be any material that can be separated into multiple translucent members 3 by dicing or the like. An example of a translucent sheet 6 is a laminated sheet in which a light-diffusing layer 9 is laminated onto the translucent layer constituting the translucent member 3 after it has been separated into individual pieces. In the laminated sheet, each layer is laminated directly or integrally via an adhesive layer or the like. Alternatively, a laminated sheet may be formed on a support by coating the material constituting the translucent member 3 and the material constituting the light-diffusing layer 9 in order or in reverse order. The thickness of each layer in the translucent sheet 6 can be appropriately set so that it exhibits the characteristics described above.

[0055] The translucent sheet 6 may be prepared as a laminated sheet in which a light-diffusing layer 9 is laminated via an adhesive layer 5 to a translucent layer constituting the translucent member 3, as shown in Figure 4. The adhesive layer 5 can be any layer that can transmit at least a portion of the light emitted from the light-emitting element 1. For example, it can transmit 60% or more of the light emitted from the light-emitting element, and it is preferable that it transmits 70% or more, 75% or more, or 80% or more. The adhesive layer 5 can be formed from a translucent resin or the like that constituting the translucent member. The thickness of the adhesive layer 5 can be 20 μm or more and 400 μm or less. Since such an adhesive layer can propagate light emitted from the light-emitting element laterally, it can contribute to reducing brightness unevenness between light-emitting parts.

[0056] (S2: Formation and division of grooves in translucent sheets) As shown in Figure 6B, in the prepared translucent sheet 6, grooves 3b are formed on the surface facing the translucent layer to divide the translucent layer into multiple translucent members 3. When the translucent sheet 6 has a light-diffusing layer 9 laminated on the translucent layer constituting the translucent members 3, or when the adhesive layer 5 and the light-diffusing layer 9 are laminated in this order, it is preferable that the grooves 3b do not penetrate the translucent sheet 6 and that their bottoms are positioned within the light-diffusing layer 9. The grooves 3b are preferably formed in a linear or grid pattern when viewed from above. The grooves 3b can be formed using a dicing blade or by irradiation with laser light, etc.

[0057] (S3: Placement of light-emitting element) As shown in Figure 6C, one light-emitting element 1 is placed on the surface of one translucent member 3 divided by a groove 3b. In this case, it is preferable to place a light-emitting element 1 on the surface of each of the multiple translucent members 3. For example, as shown in Figures 1A and 6C, the light-emitting element 1 is not placed on the surface of the translucent member 3 located on the overall outer circumference of the multiple translucent members 3, but one or more, preferably all, surfaces of the translucent members 3 located inside the translucent members 3 located on the outer circumference are placed. In this way, the translucent member 3 on which the light-emitting element 1 is placed constitutes the first translucent member 31, and the translucent member 3 located on the overall outer circumference of the multiple light-emitting elements 1 and on which the light-emitting element 1 is not placed constitutes the second translucent member 32. The light-emitting element 1 can be joined to the surface of the translucent member 3 either directly or via a translucent bonding member, on the side opposite to the light-emitting surface, for example, the side on which electrodes 1n and 1p are arranged. Any material known in the art may be used for the translucent bonding member.

[0058] (S4: Arrangement of light-shielding member on light-transmitting member) As shown in Figure 6D, the light-shielding member 4 is placed on the surface of at least one light-transmitting member 3 (i.e., the second light-transmitting member 32) adjacent to the light-transmitting member 3 on which the light-emitting element 1 is placed, but on which the light-emitting element 1 is not placed. For example, as shown in Figure 1A, if the light-emitting element 1 and the first light-transmitting member 31 are arranged in a rectangular matrix, the light-shielding member 4 is placed on top of at least one second light-transmitting member 32 on the outside.

[0059] The light-shielding member 4 can be placed on the surface of the second light-transmitting member 32 by a method selected from the group consisting of potting, stamping, coating, drawing, and transfer.

[0060] The placement of the light-emitting element in S3 and the arrangement of the light-shielding member on the light-transmitting member in S4 may be performed in reverse order. Furthermore, the formation and division of the grooves in the light-transmitting sheet in S2 may be performed between or after the placement of the light-emitting element in S3 and the arrangement of the light-shielding member on the light-transmitting member in S4.

[0061] Furthermore, it is preferable that the light-shielding member 4 be formed from a material that is harder and / or has lower tackiness than the covering member 2, which will be described later. This makes it easier to cut the member into individual pieces. It also improves the workability when assembling the light source into a light-emitting module or the like.

[0062] (S5: Arrangement of covering members) As shown in Figure 6E, a laminate 8 is formed by placing a covering member 2 on the light-transmitting member 3, on the side of the light-emitting element 1 and the light-shielding member 4, on the groove 3b, between the light-emitting elements 1, and between the light-shielding member 4 and the light-emitting elements 1. The covering member 2 can be placed using known methods such as transfer molding, injection molding, or compression molding using a mold.

[0063] For example, as shown in Figure 6E, it is preferable to arrange the material constituting the covering member 2 so as to cover the electrodes 1n and 1p, and then remove the material constituting the covering member 2 to the extent that the surfaces of the electrodes 1n and 1p are exposed, as shown in Figure 6F. Such removal can be carried out by methods known in the art, such as etching or grinding.

[0064] Subsequently, as shown in Figure 6G, a conductive film 11 may be formed on the exposed electrodes 1n and 1p, if necessary. The conductive film 11 can be made of any conductive material, and can be formed from metals such as copper, aluminum, gold, silver, platinum, titanium, tungsten, palladium, iron, nickel, or alloys containing these metals. The conductive film can be formed, for example, by sputtering or vapor deposition. The thickness of the conductive film can be appropriately set depending on the performance of the light source to be obtained, the materials used, etc. By forming such a conductive film 11, it is possible to substantially increase the surface area of ​​the electrodes 1n and 1p of the light-emitting element 1 exposed from the covering member 2, thereby improving connectivity to a substrate or the like.

[0065] Furthermore, as shown in Figure 6H, optionally, a portion of the light diffusion layer 9 in the thickness direction may be removed from the light diffusion layer 9 side of the laminate 8. It is preferable to remove the light diffusion layer 9 until the covering member 2, which is positioned between the grooves 3b, is exposed. In other words, a portion of the light diffusion layer 9 in the thickness direction is removed until it is separated by the grooves 3b. This separates the translucent member 3 and the light diffusion layer 9 for each of the multiple light-emitting surfaces. However, the light-emitting element 1 and the translucent member 3, etc., positioned on its upper surface are integrally held by the covering member 2. The light diffusion layer 9 can be removed by polishing or grinding, etching, or other methods known in the art.

[0066] (S6: Cutting of each translucent component) Subsequently, as shown in Figure 6I, one or more second light-transmitting members 32 on which the light-shielding member 4 is placed are cut in the laminate 8, and the light source 10 is divided into individual pieces. This cutting can be done using a dicing blade or by irradiation with laser light. By cutting the second light-transmitting members 32 on which the light-shielding member 4 is placed in this way, as shown in Figure 6J, a light source 10 can be formed having a structure in which the second light-transmitting member 32, the light-shielding member 4 and the covering member 2 are stacked in this order on a part or all of the side surface of the light source 10, that is, a light source 10 having a structure in which the light-shielding member 4 and the covering member 2 are stacked in this order on the side surface.

[0067] [Light-emitting module 20] As shown in Figure 7, one embodiment of the light-emitting module 20 includes a light source 10, a mounting substrate 21 on which the light source 10 is arranged, and a lens 22 arranged on the light source 10.

[0068] The mounting substrate 21 has a wiring layer on its surface, and the wiring layer can be arranged so that, for example, multiple light-emitting elements of the light source 10 can be matrix-driven in segment units.

[0069] The lens 22 can be a convex lens, a concave lens, a Fresnel lens, or any other lens that exhibits a desired function. The light-emitting module 20 may also have a housing 23 to support the lens 22. Thus, when the light source of this disclosure is used in a light-emitting module, especially when used in combination with a lens, such as a convex lens, it is possible to reduce brightness unevenness and / or light emission unevenness when viewed from above the light-emitting module. Furthermore, it is possible to enhance the design and improve the appearance when the light is not illuminated.

[0070] In addition to the embodiments described above, the following further notes are disclosed. (Note 1) Multiple light-emitting elements, A covering member is positioned between the plurality of light-emitting elements and around the entire outer circumference of the plurality of light-emitting elements, and holds the plurality of light-emitting elements together. A plurality of light-transmitting members comprising a plurality of first light-transmitting members each disposed on the plurality of light-emitting elements, and at least one second light-transmitting member disposed on the covering member located on the overall outer circumference of the plurality of light-emitting elements, A light source comprising a light-shielding member disposed between the covering member located on the overall outer circumference of the plurality of light-emitting elements and the second light-transmitting member. (Note 2) The light source according to Appendix 1, further comprising a light diffusing layer covering the upper surfaces of the plurality of light-transmitting members. (Note 3) In a top view, the plurality of first light-transmitting members are arranged in a rectangular matrix as a whole, according to the light source described in Appendix 1 or 2. (Note 4) The at least one second light-transmitting member includes a plurality of second light-transmitting members, In a top view, the plurality of second light-transmitting members are arranged on the outer periphery of the rectangular matrix arrangement, as described in Appendix 3. (Note 5) The plurality of second light-transmitting members are arranged in a rectangular frame shape as a whole. In a top view, the light-shielding member is positioned below the second light-transmitting member at the corner of the rectangular frame-shaped arrangement, as described in Appendix 4. (Note 6) In a top view, the light-shielding member is positioned below the second light-transmitting member adjacent to the second light-transmitting member at the corner, as described in Appendix 5. (Note 7) The light-shielding member is a light source according to any one of the appendices 1 to 6, wherein the thickness of the light-emitting element side is thinner than the thickness of the outer peripheral side. (Note 8) The light-shielding member is disposed only in a portion of the space between the covering member located on the outer circumference of the plurality of light-emitting elements and the second light-transmitting member, as described in any of Appendix 1 to Appendix 7. (Note 9) The second light-transmitting member has a side surface that is exposed from the covering member and constitutes the outer surface of the light source, The light-shielding member is the light source according to any one of the appendices 1 to 8, having a side surface that is exposed from the covering member and the second light-transmitting member and constitutes the outer surface of the light source. (Note 10) The covering member is a light source according to any one of the appendices 1 to 9, which exposes the upper surface of the plurality of light-transmitting members and is positioned between adjacent plurality of light-transmitting members. (Note 11) The light source according to any one of the appendices 1 to 10, wherein the distance between adjacent first light-transmitting members is smaller than the distance between adjacent light-emitting elements. (Note 12) The light source described in any of Appendix 1 to Appendix 11, wherein the plurality of light-transmitting members contain a phosphor. (Note 13) The wiring board further comprises the plurality of light-emitting elements arranged on it. The covering member is a light source according to any one of the appendices 1 to 12, which is disposed between the light-emitting element and the wiring board. (Note 14) The light source according to any one of Appendix 1 to Appendix 13, wherein the width of the second light-transmitting member in the direction of arrangement with the adjacent first light-transmitting member is 5% or more and 100% or less of the width of the adjacent first light-transmitting member in the direction of arrangement. (Note 15) The aforementioned light source, A mounting substrate on which the light source is arranged, A light-emitting module comprising a lens placed on the light source. (Note 16) The process of preparing the translucent sheet, The process of forming grooves in the light-transmitting sheet and dividing the light-transmitting sheet into a plurality of light-transmitting members, A step of placing a light-emitting element on the surface of at least one of the translucent members divided by the groove, A step of placing a light-shielding member on the surface of at least one of the light-transmitting members adjacent to the at least one of the light-transmitting members on which the light-emitting element is placed, and on which the light-emitting element is not placed; A step of forming a laminate by arranging a covering member on the light-transmitting member, on the side of the light-emitting element and the light-shielding member, in the groove, between the light-shielding elements and between the light-shielding member and the light-emitting element, The process includes cutting the laminate for each of the at least one light-transmitting members on which the light-emitting element is placed, A method for manufacturing a light source, comprising the cutting step of cutting the laminate in such a way as to divide the light-transmitting member on which the light-shielding member is arranged. (Note 17) The method for manufacturing a light source according to Appendix 16, wherein the light-shielding member is arranged by a method selected from the group consisting of potting, stamping, coating, drawing, and transfer. [Industrial applicability]

[0071] The light source and light-emitting module disclosed herein can be used in camera flash light sources, vehicle headlights, liquid crystal display backlights, various lighting fixtures, and the like. [Explanation of symbols]

[0072] 1. 1g light-emitting element 1n, 1p electrode 1s side 2 Covering member 3 Translucent material 3b Groove 4. Light-shielding material 5 Adhesive layer 6. Translucent Sheet 8 Laminate 9. Light Diffusion Layer 10, 10A light source 11. Conductive film 20 Light-emitting modules 21 Implemented circuit board 22 lenses 23 cabinets 31 First translucent member 32, 32A, 32B, 32D 2nd translucent member 32C Corner 32S side 50 Wiring boards 51 Wiring 52 matrix

Claims

1. Multiple light-emitting elements, A covering member is positioned between the plurality of light-emitting elements and around the entire outer circumference of the plurality of light-emitting elements, and holds the plurality of light-emitting elements together. A plurality of light-transmitting members comprising a plurality of first light-transmitting members each disposed on the plurality of light-emitting elements, and at least one second light-transmitting member disposed on the covering member located on the overall outer circumference of the plurality of light-emitting elements, A light source comprising a light-shielding member disposed between the covering member located on the overall outer circumference of the plurality of light-emitting elements and the second light-transmitting member.

2. The light source according to claim 1, further comprising a light diffusing layer covering the upper surfaces of the plurality of light-transmitting members.

3. The light source according to claim 1 or 2, wherein, in a top view, the plurality of first light-transmitting members are arranged as a rectangular matrix.

4. The at least one second light-transmitting member includes a plurality of second light-transmitting members, The light source according to claim 3, wherein, in a top view, the plurality of second light-transmitting members are arranged on the outer periphery of the rectangular matrix arrangement.

5. The plurality of second light-transmitting members are arranged in a rectangular frame shape as a whole. The light source according to claim 4, wherein, in a top view, the light-shielding member is positioned below the second light-transmitting member at the corner of the rectangular frame-shaped arrangement.

6. The light source according to claim 5, wherein, in a top view, the light-shielding member is positioned below the second light-transmitting member adjacent to the second light-transmitting member at the corner.

7. The light-shielding member is a light source according to claim 1 or 2, wherein the thickness of the light-emitting side is thinner than the thickness of the outer peripheral side.

8. The light source according to claim 1 or 2, wherein the light-shielding member is disposed only in a portion of the space between the covering member located on the outer circumference of the plurality of light-emitting elements and the second light-transmitting member.

9. The second light-transmitting member has a side surface that is exposed from the covering member and constitutes the outer surface of the light source, The light-shielding member has a side surface that is exposed from the covering member and the second light-transmitting member and constitutes the outer surface of the light source, as described in claim 1 or 2.

10. The light source according to claim 1 or 2, wherein the covering member exposes the upper surface of the plurality of light-transmitting members and is arranged between adjacent plurality of light-transmitting members.

11. The light source according to claim 1 or 2, wherein the distance between adjacent first light-transmitting members is smaller than the distance between adjacent light-emitting elements.

12. The light source according to claim 1 or 2, wherein the plurality of light-transmitting members contain a phosphor.

13. The wiring board further comprises the plurality of light-emitting elements arranged on it. The light source according to claim 1 or 2, wherein the covering member is disposed between the light-emitting element and the wiring board.

14. The light source according to claim 1 or 2, wherein the width of the second light-transmitting member in the direction of arrangement with the adjacent first light-transmitting member is 5% or more and 100% or less of the width of the adjacent first light-transmitting member in the direction of arrangement.

15. The aforementioned light source, A mounting substrate on which the light source is arranged, A light-emitting module comprising a lens placed on the light source.

16. The process of preparing the translucent sheet, The process of forming grooves in the light-transmitting sheet and dividing the light-transmitting sheet into a plurality of light-transmitting members, A step of placing a light-emitting element on the surface of at least one of the translucent members divided by the groove, A step of placing a light-shielding member on the surface of at least one of the light-transmitting members adjacent to the at least one of the light-transmitting members on which the light-emitting element is placed, and on which the light-emitting element is not placed; A step of forming a laminate by arranging a covering member on the light-transmitting member, on the side of the light-emitting element and the light-shielding member, in the groove, between the light-shielding elements and between the light-shielding member and the light-emitting element, The process includes cutting the laminate for each of the at least one light-transmitting members on which the light-emitting element is placed, A method for manufacturing a light source, comprising the cutting step of cutting the laminate in such a way as to divide the light-transmitting member on which the light-shielding member is arranged.

17. The method for manufacturing a light source according to claim 16, wherein the light-shielding member is arranged by a method selected from the group consisting of potting, stamping, coating, drawing, and transfer.

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