Light-emitting module

Abstract

The utility model provides a light-emitting module, and relates to the field of CSP lamp beads. The light-emitting module comprises a lamp holder, a lamp bead, a light-transmitting wetting adhesive layer and a light-transmitting packaging adhesive layer, and the lamp bead is connected to the lamp holder; the light-transmitting wetting glue layer is adhered and coated on the surface of the lamp bead; the light-transmitting packaging adhesive layer is bonded to the lamp holder, a sealing cavity is defined between the light-transmitting packaging adhesive layer and the lamp holder, the lamp bead is located in the sealing cavity, and the light-transmitting packaging adhesive layer is bonded to and wraps the light-transmitting wetting adhesive layer. According to the light-emitting module provided by the utility model, the light-transmitting wetting adhesive layer can be coated on the surface of the lamp bead in advance, so that the affinity of the light-transmitting packaging adhesive layer and the surface of the lamp bead can be improved, the light-transmitting wetting adhesive layer and the light-transmitting packaging adhesive layer are fused, and the probability of bubbles is effectively reduced; besides, the sealing performance of the lamp beads can be enhanced by coating the light-transmitting wetting adhesive layer, the first protection layer is formed, and the influence of moisture on the lamp beads can be effectively reduced by matching with the second protection layer formed by the light-transmitting packaging adhesive layer.

Description

Technical Field

[0001] The utility model relates to the field of CSP lamp beads, in particular to a light-emitting module. Background Art

[0002] Since high color gamut CSP lamp beads are more sensitive to high temperature water vapor, they are generally packaged with optical silicone to improve the application life and reliability of high color gamut CSP lamp beads. However, due to the following problems in the dispensing process: irregular and irregular bubbles are prone to appear on the surface of the lamp beads, and bubbles are prone to cause colloid peeling, which in turn affects the brightness of the light, shortens the service life, and affects the quality of the product. Utility Model Content

[0003] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and to provide a light-emitting module that can effectively reduce the appearance of bubbles around lamp beads after a single dispensing of glue, thereby improving the qualification rate and quality of the product.

[0004] The utility model provides the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a light-emitting module, the light-emitting module comprising:

[0006] Lamp holder;

[0007] A lamp bead connected to the lamp holder;

[0008] A light-transmitting moist adhesive layer, the light-transmitting moist adhesive layer is bonded and coated on the surface of the lamp bead;

[0009] A light-transmitting encapsulating adhesive layer is bonded to the lamp holder, and a sealed cavity is defined between the light-transmitting encapsulating adhesive layer and the lamp holder, the lamp bead is located in the sealed cavity, and the light-transmitting encapsulating adhesive layer is bonded and coated on the light-transmitting wetting adhesive layer.

[0010] In one embodiment of the first aspect, the light-transmitting encapsulation layer is a l ens layer, the refractive index of the light-transmitting encapsulation layer is 1.45-1.55, the height dimension of the light-transmitting encapsulation layer is H, the diameter dimension of the light-transmitting encapsulation layer is D, and the following conditions are satisfied: 0.1≤H / D≤0.6.

[0011] In one embodiment of the first aspect, a first light-transmitting evenly distributed layer is disposed at one end of the lamp bead away from the lamp holder, a thickness T of the first light-transmitting evenly distributed layer satisfies: 0.05≤T≤0.5 mm, and a reflectivity of the first light-transmitting evenly distributed layer is not less than 95%.

[0012] In one embodiment of the first aspect, the light-transmitting wettable adhesive layer is provided at the angle between the lamp bead and the lamp holder, an end of the light-transmitting wettable adhesive layer close to the lamp bead is higher than an end thereof away from the lamp bead, and a refractive index of the light-transmitting wettable adhesive layer is 1.48-1.53;

[0013] And the light-transmitting wet adhesive layer is partially bonded to the first light-transmitting uniform light layer.

[0014] In one embodiment of the first aspect, the light-transmitting wetting adhesive layer is formed with a slope, and the slope is I, satisfying: 15°≤I≤60°.

[0015] In one embodiment of the first aspect, the light-transmitting wetting adhesive layer is a silicone layer.

[0016] In one embodiment of the first aspect, a second light-transmitting uniform light layer is provided at one end of the light-transmitting encapsulation layer away from the lamp holder; wherein the reflectivity of the second light-transmitting uniform light layer is 80-99%, the maximum width dimension of the second light-transmitting uniform light layer is L, the diameter dimension of the light-transmitting encapsulation layer is D, and 0.2D≤L≤0.8D.

[0017] In one embodiment of the first aspect, the end of the light-transmitting encapsulation adhesive layer away from the lamp holder has a recessed area, and the second light-transmitting uniform light layer is disposed in the recessed area.

[0018] In one embodiment of the first aspect, the first light-transmitting light-homogenizing layer and / or the second light-transmitting light-homogenizing layer is a resin silicone layer containing titanium dioxide.

[0019] In one embodiment of the first aspect, the lamp bead is an LED lamp bead.

[0020] In a second aspect, an embodiment of the present application provides a lamp, which includes the light-emitting module as described in any of the above embodiments.

[0021] In a third aspect, an embodiment of the present application provides a display device, wherein the display device includes the light-emitting module as described in any of the above embodiments.

[0022] The embodiments of the present utility model have the following advantages:

[0023] By adopting the light-emitting module provided by the utility model, a light-transmitting wetting adhesive layer can be pre-coated on the surface of the lamp bead, and then the light-transmitting wetting adhesive layer and the light-transmitting packaging adhesive layer can be blended through the affinity between the light-transmitting packaging adhesive layer and the surface of the lamp bead, thereby effectively reducing the probability of bubbles appearing; in addition, the light-transmitting wetting adhesive layer can be coated to enhance the sealing of the lamp bead to form a first protective layer, and in combination with the second protective layer formed by the light-transmitting packaging adhesive layer, the influence of moisture on the lamp bead can be effectively reduced, thereby improving the service life and quality.

[0024] The utility model also relates to a lamp. Since the above-mentioned light-emitting module has the above-mentioned technical effects, the lamp including the light-emitting module should have the same technical effects, which will not be described in detail herein.

[0025] The utility model also relates to a display device. Since the above-mentioned light-emitting module has the above-mentioned technical effects, the display device including the light-emitting module should have the same technical effects, which will not be described in detail here.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic structural diagram of a light-emitting module provided in the first embodiment of the present utility model is shown;

[0029] Figure 2 A schematic structural diagram of a light-emitting module provided in the second embodiment of the present utility model is shown;

[0030] Figure 3 A schematic structural diagram of a light-emitting module provided in Embodiment 3 of the present utility model is shown;

[0031] Figure 4 A structural schematic diagram of a light-emitting module provided in Embodiment 4 of the present utility model is shown.

[0032] Description of main component symbols:

[0033] 100-lamp holder; 200-light-transmitting encapsulating adhesive layer; 300-lamp bead; 400-light-transmitting wetting adhesive layer; 500-first light-transmitting uniform light layer; 600-recessed area; 700-second light-transmitting uniform light layer. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the template herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] In the related technology, high color gamut CSP (Chip Scale Package) lamp beads usually need to pay more attention to protective measures in design and material selection, especially to prevent moisture intrusion, because their package size is close to the chip size and the structure is compact. CSP lamp beads have high requirements in packaging technology to ensure that they can work stably in complex environments. Due to its relatively large surface area to volume ratio, it is easily affected by high temperature and high humidity. Specifically, in terms of water vapor sensitivity, if the sealing of CSP lamp beads is insufficient, moisture is more likely to penetrate into the package in a high temperature and high humidity environment, which will not only reduce the luminous efficiency, but also cause chemical reactions in the internal materials, such as oxidation of the lead frame and bracket coating, and even cause electrical short circuits between the chip and the packaging material, seriously affecting its performance and reliability. Therefore, for high color gamut CSP lamp bead products, manufacturers often adopt more stringent moisture-proof, heat dissipation technology and packaging technology, such as using high-quality packaging materials, optimizing packaging structure, and implementing strict moisture-proof treatment measures to ensure that the product can maintain good performance and a long service life under various climatic conditions.

[0040] That is to say, since high color gamut CSP lamp beads are more sensitive to high temperature water vapor, they are generally packaged with optical silicone to improve the application life and reliability of high color gamut CSP lamp beads. However, due to the following problems in the dispensing process: irregular and irregular bubbles are prone to appear on the surface of the lamp beads, and bubbles are prone to cause colloid peeling, which in turn affects the brightness of the light, shortens the service life, and affects the quality of the product.

[0041] like Figure 1 As shown, in order to solve the above-mentioned technical problems, embodiment 1 of the present application provides a light-emitting module, which includes a lamp holder 100, a lamp bead 300, a light-transmitting wetting adhesive layer 400 and a light-transmitting packaging adhesive layer 200, the lamp bead 300 is connected to the lamp holder 100; the light-transmitting wetting adhesive layer 400 is bonded and coated on the surface of the lamp bead 300; the light-transmitting packaging adhesive layer 200 is bonded to the lamp holder 100, and a sealed cavity is defined between the light-transmitting packaging adhesive layer 200 and the lamp holder 100, the lamp bead 300 is located in the sealed cavity, and the light-transmitting packaging adhesive layer 200 is bonded and coated on the light-transmitting wetting adhesive layer 400.

[0042] It is easy to understand that the lamp bead 300, the light-transmitting wetting adhesive layer 400 and the light-transmitting encapsulating adhesive layer 200 are arranged in sequence from the inside to the outside. That is, the light-transmitting wetting adhesive layer 400 and the light-transmitting encapsulating adhesive layer 200 cooperate with the lamp holder 100 to isolate the lamp bead 300 from the external environment.

[0043] For example, in the present application, a wetting glue is pre-coated on the surface of the lamp bead 300 to form a light-transmitting wetting glue layer 400 on the surface of the lamp bead 300, and then a packaging glue is dripped on the outside of the light-transmitting wetting glue layer 400 to form a light-transmitting packaging glue layer 200 on the outside of the light-transmitting wetting glue layer 400. It should be noted that the position of dripping the packaging glue can be controlled by a glue dispenser to form light-transmitting packaging glue layers 200 of different shapes, such as a hemispherical shape or a volcanic hole shape. Of course, the light-emitting angle of the light-transmitting packaging glue layer 200 can also be optimized to improve the uniformity of light emission.

[0044] When the wetting glue is applied, the wetting glue can enter the gaps between the lamp bead 300, the lamp holder 100, and the lamp bead 300, thereby achieving pre-filling. For example, the wetting glue has low viscosity, low thixotropy, high adhesion, and high sealing, which can enhance the sealing of the lamp bead 300 and ensure that the wetting glue can fill the gaps.

[0045] By using the light-emitting module provided by the utility model, a light-transmitting wetting adhesive layer 400 can be pre-coated on the surface of the lamp bead 300, and then the affinity between the light-transmitting encapsulation adhesive layer 200 and the surface of the lamp bead 300 can be utilized to make the light-transmitting wetting adhesive layer 400 and the light-transmitting encapsulation adhesive layer 200 blend together, thereby effectively reducing the probability of bubbles appearing. In addition, the light-transmitting wetting adhesive layer 400 can be coated to enhance the sealing of the lamp bead 300 to form a first protective layer, and in combination with the second protective layer formed by the light-transmitting encapsulation adhesive layer 200, the influence of moisture on the lamp bead 300 can be effectively reduced, thereby improving the service life and quality.

[0046] like Figure 1 As shown, in some embodiments, the light-transmitting encapsulation adhesive layer 200 is a l ens adhesive layer, the refractive index of the light-transmitting encapsulation adhesive layer 200 is 1.45-1.55, the height dimension of the light-transmitting encapsulation adhesive layer is H, the diameter dimension of the light-transmitting encapsulation adhesive layer is D, and satisfies: 0.1≤H / D≤0.6.

[0047] By setting the refractive index and aspect ratio, the light output angle can be optimized and the uniformity of light emission can be improved.

[0048] For example, in this embodiment, the refractive index of the light-transmitting encapsulation adhesive layer 200 is 1.45. Of course, in other embodiments, the refractive index of the light-transmitting encapsulation adhesive layer 200 is 1.47, 1.49, 1.52, 1.55, etc., which is not specifically limited here.

[0049] For example, in this embodiment, the aspect ratio of the light-transmitting encapsulation adhesive layer 200 is 0.1. Of course, in other embodiments, the aspect ratio of the light-transmitting encapsulation adhesive layer 200 is 0.2, 0.3, 0.4, 0.5, 0.6, etc., which is not specifically limited here.

[0050] For example, the lens adhesive layer is generally a silicone adhesive layer.

[0051] like Figure 2 As shown, embodiment 2 of the present application provides a light-emitting module, which differs from embodiment 1 only in that a first light-transmitting uniform light layer 500 is added, and a first light-transmitting uniform light layer 500 is provided at one end of the lamp bead 300 away from the lamp holder 100, and a thickness T of the first light-transmitting uniform light layer 500 satisfies: 0.05≤T≤0.5mm, and a reflectivity of the first light-transmitting uniform light layer 500 is not less than 95%.

[0052] The first light-transmitting uniform light layer 500 has the following functions: 1. It is arranged on the top of the lamp bead 300 to protect the lamp bead 300; 2. It has the function of optimizing the light pattern and improving the uniformity of light emission.

[0053] It should be noted that the thickness of the first light-transmitting uniform light layer 500 should not be too large or too small. If the thickness of the first light-transmitting uniform light layer 500 is too large, the thickness of the light-emitting module will increase, and the amount of glue and the volume of the light-emitting module will increase; if the thickness of the first light-transmitting uniform light layer 500 is too small, the first light-transmitting uniform light layer 500 will be relatively weak, the structural strength will be low, and the protection effect on the lamp bead 300 will be poor.

[0054] For example, in this embodiment, the thickness of the first light-transmitting light-homogenizing layer 500 is 0.05. Of course, in other embodiments, the thickness of the first light-transmitting light-homogenizing layer 500 is 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, etc., which is not specifically limited here.

[0055] It should be noted that, in order to ensure uniformity of light emission, the higher the reflectivity of the first light-transmitting uniforming layer 500, the better. Of course, considering the cost factor, it is sufficient as long as the reflectivity is greater than 95%.

[0056] like Figure 2 As shown, in some embodiments, a light-transmitting wetting adhesive layer 400 is provided at the angle between the lamp bead 300 and the lamp holder 100, the end of the light-transmitting wetting adhesive layer 400 close to the lamp bead 300 is higher than the end away from the lamp bead 300, and the refractive index of the light-transmitting wetting adhesive layer 400 is 1.48-1.53; and the light-transmitting wetting adhesive layer 400 is partially bonded to the first light-transmitting uniform light layer 500.

[0057] Since the lamp bead 300 and the lamp holder 100 form an angle around the angle, a cavity is easily formed at the angle during the sealing process. Therefore, a light-transmitting wet glue layer 400 is pre-arranged at the angle between the lamp bead 300 and the lamp holder 100 to form a slope, so as to facilitate the dripping of the sealing glue, facilitate the flow of the sealing glue, and eliminate bubbles.

[0058] It should be noted that by setting the refractive index of the light-transmitting wetting adhesive layer 400 within the range of 1.48-1.53, the optical performance of the light-emitting module can be improved to avoid the light-shielding condition of the light-transmitting wetting adhesive layer 400.

[0059] like Figure 2 As shown, in one embodiment, the light-transmitting wetting adhesive layer 400 is formed with a slope, the slope is I, and satisfies: 15°≤I≤60°.

[0060] For example, in this embodiment, the slope of the light-transmitting moistening adhesive layer 400 is 15°. Of course, in other embodiments, the slope of the light-transmitting moistening adhesive layer 400 is 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc., which is not specifically limited here.

[0061] It should be noted that it is not advisable to set the slope of the light-transmitting moist adhesive layer 400 too large or too small. Specifically, if the slope of the light-transmitting moist adhesive layer 400 is too small, the contact area between the bottom of the light-transmitting encapsulating adhesive layer 200 and the lamp holder 100 becomes smaller, and the fluidity of the encapsulating adhesive is poor, which is not conducive to eliminating bubbles. If the slope of the light-transmitting moist adhesive layer 400 is too large, it is not conducive to eliminating the angle, and it is also not conducive to eliminating bubbles.

[0062] In some embodiments, the light-transmitting wetting adhesive layer 400 is a silicone layer.

[0063] Exemplarily, the light-transmitting wetting adhesive layer 400 is a silicone layer with low viscosity, high fluidity, high refractive index and high transmittance, which is applied to the side of the lamp bead 300 before applying the lens glue, thereby reducing bubbles and improving optics.

[0064] like Figure 3 As shown, embodiment 3 of the present application provides a light-emitting module, which differs from embodiment 2 only in that a second light-transmitting uniform light layer 700 is added, and a second light-transmitting uniform light layer 700 is provided at one end of the light-transmitting encapsulation layer 200 away from the lamp holder 100; wherein, the reflectivity of the second light-transmitting uniform light layer 700 is 80-99%, the maximum width dimension of the second light-transmitting uniform light layer 700 is L, the diameter dimension of the light-transmitting encapsulation layer 200 is D, and 0.2D≤L≤0.8D.

[0065] The second light-transmitting uniform light layer 700 can further optimize the light output angle and improve the uniformity of the light-emitting module by mixing glue and designing the shape. For example, the shape of the second light-transmitting uniform light layer 700 includes but is not limited to a circle, a quadrilateral, and an octagonal rhombus.

[0066] like Figure 4As shown, the fourth embodiment of the present application provides a light-emitting module, which differs from the third embodiment only in that a recessed area 600 is added, and the end of the light-transmitting encapsulation glue layer 200 away from the lamp holder 100 has a recessed area 600, and a second light-transmitting uniform light layer 700 is arranged in the recessed area 600.

[0067] Obviously, by providing a recessed area 600 on the top of the light-transmitting encapsulation glue layer 200 and providing the second light-transmitting homogenizing layer 700 in the recessed area 600, it is possible to facilitate shaping of the second light-transmitting homogenizing layer 700 so that the shape of the second light-transmitting homogenizing layer 700 matches the shape of the recessed area 600.

[0068] In addition, by setting the recessed area 600, the thickness of the light-transmitting packaging glue layer 200 can be reduced by 10%-30%; and the recessed area 600 can form a reflective structure, and the reflective structure includes but is not limited to pyramids, cones, prisms, etc. The reflective structure can increase the light-emitting angle of the light-emitting module by 5°-20°.

[0069] Exemplarily, the distance H between the lowest point of the recessed area 600 and the lamp bead 300 is ≥ 0.1 mm.

[0070] like Figure 3 and Figure 4 As shown, in some embodiments, the first light-transmitting homogenizing layer 500 and / or the second light-transmitting homogenizing layer 700 is a resin silicone layer containing titanium dioxide.

[0071] In this embodiment, the light scattering and reflection effects can be increased by using a resin silicone layer containing titanium dioxide.

[0072] In some embodiments, the lamp bead 300 is an LED lamp bead 300. Of course, the lamp bead 300 can also be other high color gamut lamp bead 300, which is only exemplified here and is not specifically limited.

[0073] An embodiment of the present application further provides a lamp, which includes the light-emitting module as described in any of the above embodiments.

[0074] Since the above-mentioned light-emitting module has the above-mentioned technical effects, the lamp including the light-emitting module should have the same technical effects, which will not be repeated here.

[0075] In this embodiment, the lamp is taken as a light strip, and a plurality of light-emitting modules can be arranged to construct the light strip.

[0076] An embodiment of the present application further provides a display device, which includes the light-emitting module as described in any of the above embodiments.

[0077] Since the above-mentioned light-emitting module has the above-mentioned technical effects, the display device including the light-emitting module should have the same technical effects, which will not be repeated here.

[0078] In this embodiment, the display device takes an LED display screen as an example, and a plurality of light-emitting modules can be arranged to construct an LED display screen.

[0079] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0080] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0081] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A light emitting module, characterized in that: The light emitting module comprises: Lamp holder; A lamp bead connected to the lamp holder; A light-transmitting moist adhesive layer, the light-transmitting moist adhesive layer is bonded and coated on the surface of the lamp bead; A light-transmitting encapsulating adhesive layer is bonded to the lamp holder, and a sealed cavity is defined between the light-transmitting encapsulating adhesive layer and the lamp holder, the lamp bead is located in the sealed cavity, and the light-transmitting encapsulating adhesive layer is bonded and coated on the light-transmitting wetting adhesive layer.

2. The light emitting module according to claim 1, characterized in that: The light-transmitting encapsulation adhesive layer is a lens adhesive layer, the refractive index of the light-transmitting encapsulation adhesive layer is 1.45-1.55, the height dimension of the light-transmitting encapsulation adhesive layer is H, the diameter dimension of the light-transmitting encapsulation adhesive layer is D, and the following is satisfied: 0.1≤H / D≤0.

6.

3. The light emitting module according to claim 1, characterized in that: A first light-transmitting uniform light layer is disposed at one end of the lamp bead away from the lamp holder. The thickness T of the first light-transmitting uniform light layer satisfies: 0.05≤T≤0.5mm, and the reflectivity of the first light-transmitting uniform light layer is not less than 95%.

4. The light emitting module according to claim 3, characterized in that: The light-transmitting wet adhesive layer is provided at the angle between the lamp bead and the lamp holder, the end of the light-transmitting wet adhesive layer close to the lamp bead is higher than the end away from the lamp bead, and the refractive index of the light-transmitting wet adhesive layer is 1.48-1.53; And / or, the light-transmitting wetting adhesive layer is partially bonded to the first light-transmitting uniform light layer.

5. The light emitting module according to claim 4, characterized in that: The light-transmitting wetting adhesive layer is formed with a slope, and the slope is I, satisfying: 15°≤I≤60°.

6. The light emitting module according to claim 4, characterized in that: The light-transmitting and moistening adhesive layer is a silica gel layer.

7. The light emitting module according to any one of claims 3 to 6, characterized in that: A second light-transmitting uniform light layer is provided at one end of the light-transmitting encapsulation layer away from the lamp holder; wherein the reflectivity of the second light-transmitting uniform light layer is 80-99%, the maximum width dimension of the second light-transmitting uniform light layer is L, the diameter dimension of the light-transmitting encapsulation layer is D, and 0.2D≤L≤0.8D.

8. The light emitting module according to claim 7, characterized in that: The end of the light-transmitting packaging adhesive layer away from the lamp holder has a recessed area, and the second light-transmitting uniform light layer is arranged in the recessed area.

9. The light emitting module according to claim 7, characterized in that: The first light-transmitting uniform light layer and / or the second light-transmitting uniform light layer is a resin silicone layer containing titanium dioxide.

10. The light emitting module according to claim 1, characterized in that: The lamp beads are LED lamp beads.

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