Light source module

Abstract

A light source module comprises a substrate, a plurality of light-emitting assemblies and a plurality of protruding structures. The plurality of light-emitting components are arranged on the substrate, a plurality of adjacent light-emitting components form a light-emitting component group, and the plurality of light-emitting components form a plurality of light-emitting component groups; the plurality of convex structures are arranged on the substrate and comprise a plurality of first convex structures and a plurality of second convex structures; the first protruding structures are arranged on the light-emitting assemblies respectively and cover the light-emitting assemblies, the second protruding structures are arranged on the light-emitting assembly sets respectively, and the second protruding structures in each light-emitting assembly set are partially overlapped with the first protruding structures of the light-emitting assemblies in the light-emitting assembly set.

Description

Technical Field

[0001] This invention relates to the field of backlighting, and more particularly to a direct-lit backlighting technology. Background Technology

[0002] In direct-lit backlighting technology, a backlight panel is typically used as the backlight source. The backlight panel can contain multiple point light sources or line light sources arranged in a planar direction. Although the arrangement of multiple point light sources or line light sources in a planar direction can produce the effect of a surface light source, there are still non-light source areas between the point and line light sources. Therefore, there are inevitably differences between bright and dark areas on the surface light source, which affects the display quality and visual experience. Summary of the Invention

[0003] The present invention provides a light source module for providing a surface light source, and the light source module can make the brightness of the surface light source more uniform, which helps to improve the quality of the display screen.

[0004] To achieve one, some, or all of the above-mentioned objectives, or other objectives, an embodiment of the present invention provides a light source module, including a substrate, a plurality of light-emitting components, and a plurality of protruding structures. The plurality of light-emitting components are disposed on the substrate, wherein every plurality of adjacent light-emitting components constitutes a light-emitting component group, and the plurality of light-emitting components form a plurality of light-emitting component groups. The plurality of protruding structures are disposed on the substrate and include a plurality of first protruding structures and a plurality of second protruding structures. The plurality of first protruding structures are respectively disposed on and cover each light-emitting component, while the plurality of second protruding structures are respectively disposed in each light-emitting component group, and the second protruding structures in each light-emitting component group partially overlap with the first protruding structures of each light-emitting component in that light-emitting component group.

[0005] In one embodiment of the aforementioned light source module, the protruding structure is made of a light-transmitting material, and the surface of the protruding structure is curved.

[0006] In one embodiment of the aforementioned light source module, the protrusion structure is further a dot-like structure, and each of the first protrusion structures is formed by dispensing adhesive onto the light-emitting component, and each of the second protrusion structures is formed by dispensing adhesive into the light-emitting component group.

[0007] In one embodiment of the aforementioned light source module, the second protrusion structure is larger than the first protrusion structure; the second protrusion structure is further disposed in the center of the light-emitting component group and covers a portion of the first protrusion structure.

[0008] In one embodiment of the aforementioned light source module, the plurality of components is further four, and each group of four adjacent light-emitting components constitutes the light-emitting component group.

[0009] In one embodiment of the aforementioned light source module, each of the first protrusion structures further has a bottom; the height of the first protrusion structure is 0.9 to 1.0 mm, and the diameter of the bottom is 2.7 to 3.0 mm.

[0010] In one embodiment of the aforementioned light source module, the ratio of the height of the first protrusion structure to the diameter of the bottom is 0.33 or close to 0.33.

[0011] In one embodiment of the aforementioned light source module, the height of the second protrusion structure is 1.6 to 1.7 mm, and the diameter is 4.5 to 4.8 mm; the diameter of the second protrusion structure is parallel to the bottom of the first protrusion structure.

[0012] In one embodiment of the aforementioned light source module, the ratio of the height to the diameter of the second protrusion structure is 0.35 or close to 0.35.

[0013] The present invention also provides a light source module, comprising:

[0014] One substrate;

[0015] Multiple light-emitting components are disposed on the substrate; wherein each number of adjacent light-emitting components constitutes a light-emitting component group, and the multiple light-emitting components form multiple light-emitting component groups;

[0016] Multiple protrusion structures are disposed on the substrate; each protrusion structure is disposed in each of the light-emitting component groups and includes:

[0017] Multiple first protrusion structures are respectively located on and cover each of the light-emitting components; and

[0018] A second protruding structure is located in the center of the light-emitting component group.

[0019] Because the present invention employs multiple protruding structures, including a second protruding structure disposed between the light-emitting components and connected to the first protruding structure, it can adjust the light output, improve the light energy distribution, increase the brightness of non-light source areas, reduce the difference between bright and dark areas in the surface light source, and improve the brightness uniformity.

[0020] To make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 The image shown is a partial three-dimensional schematic diagram of the light source module according to the first embodiment of the present invention.

[0022] Figure 2 The image shown is a partial top view of the light source module according to the first embodiment of the present invention.

[0023] Figure 3 The image shown is a partial top view of the light source module according to the second embodiment of the present invention.

[0024] Figure 4 The image shown is a partial three-dimensional schematic diagram of the light source module according to the third embodiment of the present invention.

[0025] Figure 5 The image shown is a partial top view of the light source module according to the third embodiment of the present invention.

[0026] Figure 6 The diagram shown is a partial top view of the first embodiment.

[0027] Figure 7 As shown Figure 6 A side view diagram.

[0028] Figure 8 The diagram shown is a brightness distribution diagram of an embodiment of the present invention and a conventional light source module.

[0029] Figure 9 The figure shown is a side view of the fourth embodiment of the present invention.

[0030] In the attached figures, the following labels are used:

[0031] 10: Light source module

[0032] 200: Substrate

[0033] 300: Light-emitting component

[0034] 300a, 300b, 300c: Light-emitting component groups

[0035] 400: File Wall Structure

[0036] 500, 500a: Protruding structure

[0037] 510: First protruding structure

[0038] 515: Bottom

[0039] 520: Second protrusion structure

[0040] X1, X2, X4: Direction

[0041] L1, L2: Distance

[0042] H1, H2: Height

[0043] D1, D2: Diameter length

[0044] A: Area Detailed Implementation

[0045] This invention provides a light source module for providing a surface light source, which can make the brightness of the surface light source more uniform and help improve the quality of the displayed image.

[0046] Figure 1 The image shown is a partial perspective view of an embodiment of the present invention. Figure 2 As shown Figure 1 A partial top-view diagram. (See attached diagram.) Figure 1 As shown, the light source module 10 of this embodiment includes a substrate 200 and a plurality of light-emitting components 300. The substrate 200 may be, for example, a circuit board. The plurality of light-emitting components 300 are disposed on the substrate 200 to provide a surface light source. When the light source module 10 is used in conjunction with, for example, a display module or a backlight assembly, the surface light source may illuminate light from the bottom side or below the display module or backlight assembly. That is, the light source module 10 of this embodiment can be a direct-lit light source module.

[0047] The light-emitting component 300 can be, for example, a light-emitting diode (LED) or a light-emitting diode chip, wherein the LED can also include Mini LEDs and Micro LEDs, but is not limited thereto. For example, the LED can also have other packaging forms. Figure 2 As shown, a plurality of light-emitting components 300 may be arranged spaced apart from each other on the substrate 200 along at least one direction, for example, spaced apart from each other along a first direction X1. The spacing between the plurality of light-emitting components 300 in the first direction X1 may be equal. The plurality of light-emitting components 300 may also be arranged spaced apart from each other along another direction. Figure 2 As shown, multiple light-emitting components 300 are further arranged at intervals in the second direction X2. The first direction x1 and another direction, such as the second direction X2, may be perpendicular to each other, but are not limited thereto.

[0048] A number of adjacent light-emitting components 300 on the substrate 200 can form a group of light-emitting components, and multiple light-emitting components 300 on the substrate 200 can constitute multiple groups of light-emitting components. Any light-emitting component 300 can belong to a group of light-emitting components 300a, that is, multiple groups of light-emitting components 300a are independent of each other. The number of light-emitting components 300 in a group of light-emitting components 300a can be, for example, 2, 3, 4, 5, or 6, but is not limited thereto. Figure 2 Each light-emitting component group 300a is distinguished by a dashed line (the dashed line may not actually exist). In addition, the multiple light-emitting components 300 within each light-emitting component group 300a can be arranged more closely, that is, the distance L1 between adjacent light-emitting components 300 within the same light-emitting component group 300a can be smaller than the distance L2 between adjacent light-emitting components 300 in adjacent light-emitting component groups 300a.

[0049] exist Figure 2In the illustrated embodiment, each light-emitting component group 300a contains four light-emitting components 300. In this case, the total number of light-emitting components 300 can be the product of the total number of light-emitting component groups 300a and 4, but is not limited to this. For example, the plurality of light-emitting components 300 on the substrate 200 may only partially constitute light-emitting component groups 300a, thus the total number of light-emitting components 300 can be greater than the product of the total number of light-emitting component groups 300a and 4. In other embodiments, such as... Figure 3 In the illustrated embodiment, each light-emitting component group 300b contains, for example, three other light-emitting components 300. In this case, the total number of light-emitting components 300 can be the product of the total number of light-emitting component groups 300b and 3, but is not limited thereto. Furthermore, in several embodiments of the present invention, such as... Figures 4-5 As shown, the light source module 10 may further include a file wall structure 400 disposed on the substrate 200, and multiple light-emitting component groups 300c can be separated from each other by the file wall structure 400. Each light-emitting component group 300c and the surrounding part of the file wall structure 400 can constitute a lamp cup.

[0050] Figure 6 As shown Figure 1 A partial top view of an embodiment, Figure 7 for Figure 6 A side view diagram. (See attached diagram.) Figure 1 and Figures 6-7 As shown, the light source module 10 also includes a protrusion structure 500. The protrusion structure 500 is disposed on the substrate 200 and can be used to provide optical, protective, and fixing functions, but is not limited thereto. The protrusion structure 500 can be made of a light-transmitting material, and light from the light-emitting component 300 can be emitted through the protrusion structure 500. In several embodiments of the present invention, the protrusion structure 500 can be formed, for example, by dispensing, to have a dot-like structure. The adhesive used can be, for example, silicone, epoxy resin, acrylic resin, polyurethane, but is not limited thereto. Furthermore, the adhesive used can have a refractive index of 1.47 to 1.55 or close to 1.47 to 1.55; that is, the adhesive or the protrusion structure 500 formed therefrom can have a refractive index of 1.47 to 1.55 or close to 1.47 to 1.55, such as, but not limited to, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, and 1.7.

[0051] like Figure 7As shown, the surface of the protruding structure 500 is curved. The curvature of the surface can be adjusted, for example, by the properties of the adhesive material and the dispensing parameters. In several embodiments of the present invention, the surface of the protruding structure 500 may be an arcuate surface, a spherical segment, or a combination thereof, or the curvature of the surface of the protruding structure 500 may be approximately uniform. When the protruding structure 500 is used for optical functions, it may also be equivalent to or similar to a lens structure. A so-called lens-like structure may, for example, not fully possess the general characteristics of a lens, but achieve the effects of a lens.

[0052] The protruding structure 500 may include a first protruding structure 510 and a second protruding structure 520, through which light from the light-emitting component 300 can be emitted. The first protruding structure 510 is disposed on and covers each light-emitting component 300. The light-emitting component 300 may be located at the center of the bottom 515 of the first protruding structure 510. The second protruding structure 520 is disposed in each light-emitting component group 300a. That is, each light-emitting component group 300a may have multiple first protruding structures 510 and one second protruding structure 520, with each first protruding structure 510 corresponding to multiple light-emitting components 300 in the light-emitting component group 300a. The second protruding structure 520 may be located at the center of the light-emitting component group 300a.

[0053] In several embodiments of the present invention, the second protrusion structure 520 partially overlaps with the first protrusion structure 510 of each light-emitting component 300 within each light-emitting component group 300a. Figures 6-7 As shown in the example, the second protruding structure 520 can be stacked on the first protruding structure 510 and covers a portion of the first protruding structure 510 (the covered portion of the first protruding structure 510 is indicated by a dashed line); the edge portion of the first protruding structure 510 covered by the second protruding structure 520 is indicated by a dashed line in the figure. Furthermore, the state where the second protruding structure 520 is stacked on the first protruding structure 510 can be formed by "dispensing" as described above, that is, first dispensing adhesive on the light-emitting component 300 to form the first protruding structure 510, and then dispensing adhesive within the light-emitting component group 300a to form the second protruding structure 520. The position of the second protruding structure 520 can be further between multiple light-emitting components 300 of the light-emitting component group 300a. However, it is understood that the present invention can also involve the first protruding structure 510 stacked on the second protruding structure 520, and the arrangement of the protruding structure 500 is not limited to dispensing.

[0054] like Figures 6-7As shown, the first protrusion structure 510 may have a height H1 and a diameter D1. The height H1 may be equivalent to the vertical distance from the bottom 515 of the first protrusion structure 510 to its highest point, and the diameter D1 may be equivalent to the maximum or average length of the first protrusion structure 510 in the planar direction of the substrate 200. In some embodiments of the present invention, the height H1 may be equivalent to the arc height of the first protrusion structure 510. In some embodiments, the shape of the first protrusion structure 510 is equivalent to or approximately the portion of a sphere, or a spherical cap. Furthermore, the bottom 515 of the first protrusion structure 510 may be largely circular, and the diameter D1 is equivalent to the diameter of its circular bottom. The bottom 515 may include a bottom surface and is connected to the substrate 200.

[0055] The second protruding structure 520 may have a height H2 and a diameter D2. The meanings of height H2 and diameter D2 can be referred to as H1 and D1, respectively. Height H2 and H1 may not be equal; for example, H2 is greater than H1. Diameter D2 and D1 may also not be equal; for example, D2 is greater than D1. Furthermore, the second protruding structure 520 and the first protruding structure 510 may be different in size. The size of the protruding structure 500 can be reflected in its height and diameter; that is, the larger the protruding structure 500, the greater its height or diameter, or both. In one embodiment of the present invention, the second protruding structure 520 is larger than the first protruding structure 510, and as... Figures 6-7 As shown, the height H2 is greater than H1, and the diameter D2 is greater than D1.

[0056] When the protruding structure 500 is used for optical functions, it can have an appropriate shape and size (hereinafter referred to as parameters; parameters include the diameter, height, curvature, etc., that give the protruding structure 500 a specific shape and size) to achieve the desired optical effect. Since the light from the light-emitting component 300 can be emitted through the first protruding structure 510 and the second protruding structure 520, the parameters of the second protruding structure 520 can be matched with the parameters of the first protruding structure 510 to achieve the desired optical effect. In several embodiments of the present invention, the height H1 of the first protruding structure 510 is 0.9–1.0 mm, for example, but not limited to, 0.9 mm, 0.92 mm, 0.94 mm, 0.96 mm, 0.98 mm, and 1.0 mm, and the diameter D1 is 2.7–3.0 mm, for example, but not limited to, 2.7 mm, 2.75 mm, 2.8 mm, 2.85 mm, 2.9 mm, 2.95 mm, and 3.0 mm. The height H1 is greater than the diameter D1 by 0.33 or close to 0.33, for example, 0.3310, 0.3320, 0.3330, 0.3340, 0.3350, 0.3360, 0.3370, 0.3380, 0.3390; the second protrusion 520 is larger than the first protrusion 510, and the height H2 is greater than the diameter D2 by 0.35 or close to 0.35, for example, 0.3510, 0.3520, 0.3530, 0.3540, 0.3550, 0.3560, 0.3570, 0.3580, 0.3590. In addition to the height H1 of 0.9 to 1.0 mm and the diameter D1 of 2.7 to 3.0 mm of the first protrusion structure 510, in several embodiments of the present invention, the second protrusion structure 520 may have a height H2 of 1.6 to 1.7 mm, such as, but not limited to, 1.6 mm, 1.62 mm, 1.64 mm, 1.66 mm, 1.68 mm, 1.7 mm, and a diameter D2 of 4.5 to 4.8 mm, such as, but not limited to, 4.5 mm, 4.55 mm, 4.6 mm, 4.65 mm, 4.7 mm, 4.75 mm, 4.8 mm.

[0057] The optical functions of the protruding structure 500 include adjusting the light emission of the light-emitting component 300. Furthermore, the second protruding structure 520 and the first protruding structure 510 can cooperate with the light-emitting component 300 to adjust the light emission of the light-emitting component 300 and achieve the desired quality of the surface light source of the light source module 10. For example, the second protruding structure 520 and the first protruding structure 510 can adjust the direction of the light emission of the light-emitting component 300, thereby making the distribution of light energy and brightness more uniform and avoiding obvious bright and dark areas in the surface light source.

[0058] by Figure 7 Examples are described below. Figure 7As shown by the dashed line, the light rays from the light-emitting component 300 (denoted by L) travel towards the center of the light-emitting component group 300a and then enter the second protruding structure 520. When the light rays exit from the second protruding structure 520 (denoted by L'), refraction occurs, and the light ray L' can deviate from the center and travel. It is understood that the light ray L can be refracted when passing through the interface between the second protruding structure 520 and the first protruding structure 510, but the present invention is not limited thereto. For example, when the first protruding structure 510 and the second protruding structure 520 are made of the same material and have almost the same refractive index, the light ray L may not be refracted when passing through the interface.

[0059] As mentioned above, since the light L from the light-emitting components 300 within the light-emitting component group 300a is partially directed towards the center, generally, the center has a higher concentration of light energy / brightness; conversely, the surrounding area of ​​the light-emitting component group 300a has lower light energy / brightness. However, in this embodiment of the invention, the lower light energy / brightness in the surrounding area is improved due to the second protrusion structure 520 cooperating with the first protrusion structure 510. Further explanation follows.

[0060] Figure 8 The diagram shows the brightness variation of the light source module in one direction, where the solid line represents an embodiment of the present invention. Figure 7 The embodiments illustrate the brightness variation in the stated direction, with the dashed line representing the case of a conventional light source module. The stated direction is parallel to the surface light source and passes through adjacent light-emitting components; however, in this embodiment, the direction (denoted by X4) also passes through adjacent light-emitting component groups 300a, and may further pass through the center of the light-emitting component groups 300a. The light source module 10 may have a reference point (i.e., 0 on the horizontal axis), and the direction X4 passes through the reference point, while the distance (mm) of each light-emitting component group 300a relative to the reference point may be as shown by the value on the horizontal axis. The reference point may be located, for example, at the center of the light source module 10.

[0061] like Figures 7-8 As shown, in the light source module 10, the brightness is highest above the light-emitting component 300, which can be called the "bright area"; as indicated by the solid arrow, the brightness can reach 100%. The brightness decreases in areas away from the light-emitting component 300, with some areas dropping to 94% or below. This area further includes the center of the light-emitting component group 300a and the area A between adjacent light-emitting component groups 300a; area A is also called the surrounding area or non-light source area. Figure 8 The area circled by the center line represents the brightness of region A, as well as the brightness of the corresponding position on the traditional light source module. For example... Figure 8As shown, the brightness of the light source module 10 in region A is relatively low, which can be described as a "dark area". The brightness of a conventional light source module at the position corresponding to region A is also relatively low, and even lower than that of the embodiment of the present invention. As indicated by the hollow arrow, the brightness of a conventional light source module at the position corresponding to region A can be less than 88%. That is, the embodiment of the present invention improves the difference between the bright and dark areas of the light source module.

[0062] The table below shows the brightness at different positions on another embodiment of the present invention and a conventional light source module. In the embodiment of the present invention, positions 1, 2, and 3 are respectively above the light-emitting component 300, in the center of the light-emitting component group 300a, and in region A. Positions 1', 2', and 3' are the positions on the conventional light source module corresponding to positions 1, 2, and 3.

[0063] Table 1

[0064]

[0065] As shown in Table 1, the embodiments of the present invention can improve the situation where the brightness of region A (surrounding region) of the light-emitting component group 300a is low, that is, the brightness of region A (position 3) is significantly higher than that of position 3'. Due to the increased brightness of the "dark area," the brightness difference between the bright and dark areas of the surface light source can be reduced from 13.85% in conventional light source modules to less than 8%, resulting in a more uniform brightness of the surface light source. Furthermore, Table 1 also shows that even if light L' deviates from the center when emanating from the second protrusion structure 520 locally, it does not necessarily cause a decrease in the brightness of the center (position 2) of the light-emitting component group 300a overall; the brightness of positions 1, 2, and 3 can all exceed 90%. In other words, the embodiments of the present invention not only improve the difference between bright and dark areas and enhance the brightness uniformity of the surface light source, but also improve the light utilization rate.

[0066] As described above, the parameters of the second protrusion structure 520 can be matched with the parameters of the first protrusion structure 510. Furthermore, the parameters of the second protrusion structure 520 and the first protrusion structure 510 can be further matched with the light-emitting component 300 and / or the light-emitting component group 300a to achieve or optimize the aforementioned effects. For example, when the light-emitting component group 300a and / or its light-emitting components 300, which are matched with the protrusion structure 500 in this embodiment of the invention, further meet certain conditions, the effects of improving the difference between bright and dark areas, enhancing brightness uniformity, and improving light utilization can be more significant. These conditions may include, for example, the relative position and distance between the light-emitting components 300. In several embodiments of the present invention, the distance L1 between adjacent light-emitting components 300 in the light-emitting component group 300a is 4.45–4.6 mm. The distance L1 can be parallel to the arrangement direction of the light-emitting components 300, such as the first direction X1 and the second direction X2. That is, the adjacent light-emitting components 300 are 4.45 to 4.6 mm apart in the first direction X1 and the second direction X2, for example, 4.45 mm, 4.5 mm, 4.55 mm and 4.6 mm.

[0067] In several embodiments of the present invention, such as Figure 9 As shown, multiple first protrusions 510 and a single second protrusion 520 can also be integrally formed into a single protrusion 500a. The protrusion 500a can thus have a flower-like shape. Each protrusion 500a can be disposed in each light-emitting component group 300a, and the first protrusions 510 and second protrusions 520 of each protrusion 500a can be integrally formed without overlapping or forming an interface. Besides dispensing, the protrusion 500a can also be formed by, for example, molding, grinding, and polishing.

[0068] like Figure 9 As shown, the first protrusion structure 510 corresponds to each light-emitting component 300, while the second protrusion structure 520 corresponds to each light-emitting component group 300a. The second protrusion structure 520 of the protrusion structure 500a can also be located in the center of the light-emitting component group 300a. A portion of the light from the light-emitting component 300, for example, light entering towards the center of the light-emitting component group 300a, can exit from the second protrusion structure 520, while another portion, for example, light entering away from the center of the light-emitting component group 300a, can exit from the first protrusion structure 510. Through the parameter design of the second protrusion structure 520 and its adjustment of the light emission direction, the problem of brightness and darkness differences in traditional light source modules can be improved.

[0069] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A light source module, characterized in that, include: One substrate; Multiple light-emitting components are disposed on the substrate; wherein each number of adjacent light-emitting components constitutes a light-emitting component group, and the multiple light-emitting components form multiple light-emitting component groups; Multiple protrusion structures are disposed on the substrate; The multiple protrusion structures include: Multiple first protrusion structures are respectively disposed on each of the light-emitting components and cover the light-emitting components; as well as Multiple second protrusion structures are respectively disposed in each of the light-emitting component groups, and the second protrusion structure in each of the light-emitting component groups overlaps with the first protrusion structure of each light-emitting component in the light-emitting component group.

2. The light source module as described in claim 1, characterized in that, The protruding structure is made of a light-transmitting material, and the surface of the protruding structure is curved.

3. The light source module as described in claim 1, characterized in that, The protrusion structure is further a dot-like structure, and each of the first protrusion structures is formed by dispensing adhesive onto the light-emitting component, and each of the second protrusion structures is formed by dispensing adhesive into the light-emitting component assembly.

4. The light source module as described in claim 1, characterized in that, The second protrusion structure is larger than the first protrusion structure; the second protrusion structure is further disposed in the center of the light-emitting component group and covers the portion of the first protrusion structure.

5. The light source module as described in claim 1, characterized in that, The quantity is further divided into four, and each group of four adjacent light-emitting components constitutes the light-emitting component group.

6. The light source module as described in claim 1, characterized in that, Each of the first protrusions further has a bottom; the height of the first protrusion is 0.9 to 1.0 mm, and the diameter of the bottom is 2.7 to 3.0 mm.

7. The light source module as described in claim 1, characterized in that, The ratio of the height of the first protrusion to the diameter of the bottom is 0.33 or close to 0.

33.

8. The light source module as described in claim 1, characterized in that, The height of the second protrusion is 1.6 to 1.7 mm, and the diameter is 4.5 to 4.8 mm; the diameter of the second protrusion is parallel to the bottom of the first protrusion.

9. The light source module as described in claim 8, characterized in that, The ratio of the height to the diameter of the second protrusion is 0.35 or close to 0.

35.

10. A light source module, characterized in that, include: One substrate; Multiple light-emitting components are disposed on the substrate; wherein each number of adjacent light-emitting components constitutes a light-emitting component group, and the multiple light-emitting components form multiple light-emitting component groups; Multiple protrusion structures are disposed on the substrate; Each of the protrusion structures is disposed in each of the light-emitting component groups and includes: Multiple first protrusion structures are respectively located on each of the light-emitting components and cover the light-emitting components; as well as A second protruding structure is located in the center of the light-emitting component group.

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