Lamp bead, electronic device and manufacturing method of lamp bead

Abstract

The invention provides a lamp bead, an electronic device and a manufacturing method of the lamp bead, and belongs to the technical field of illumination. The lamp bead comprises a bracket, and a light-emitting chip, fluorescent glue, a lens and a diffusion piece which are positioned on the same side of the bracket; the light-emitting chip is connected with the bracket; the fluorescent glue covers the light-emitting chip and is connected with the support, and the face, back on to the support, of the fluorescent glue is an outwards-protruding arc face. The lens covers the fluorescent glue and is connected with the support, the outer wall of the side, back on to the support, of the lens is provided with a containing groove, and the containing groove is opposite to the light-emitting chip; the diffusion piece is located in the containing groove, and the diffusion piece is a segment-shaped structural piece. The light emitting angle of the lamp bead can be effectively improved.

Description

Technical Field

[0001] The present invention belongs to the field of lighting technology, and in particular relates to a lamp bead, an electronic device and a method for manufacturing the lamp bead. Background Art

[0002] Lamp beads are a common lighting electronic device that mainly serves the function of lighting and can be used in the backlight module of a display.

[0003] In the related technology, the lamp beads are mainly packaged in the form of 2835 or 3030, which mainly include a bracket, a light-emitting chip and a fluorescent glue. One side of the bracket has a bowl-shaped groove, the light-emitting chip is located in the bowl-shaped groove, and the fluorescent glue is outside the light-emitting chip. The blue light emitted by the chip can excite the fluorescent glue to emit white light. The light is reflected by the bowl-shaped groove and then diffused to ensure a larger light-emitting angle.

[0004] However, due to the size of the bowl-shaped groove outlet, the luminous angle can usually only reach about 120 degrees. As a result, the backlight module requires more lamp beads to meet the requirements of the irradiation range, and the manufacturing cost increases accordingly. Summary of the invention

[0005] The embodiments of the present disclosure provide a lamp bead, an electronic device and a method for manufacturing a lamp bead, which can effectively improve the light output angle of the lamp bead. The technical solution is as follows:

[0006] In a first aspect, an embodiment of the present disclosure provides a lamp bead, comprising a bracket, and a light-emitting chip, a fluorescent glue, a lens, and a diffuser located on the same side of the bracket;

[0007] The light emitting chip is connected to the bracket;

[0008] The fluorescent glue covers the outside of the light-emitting chip and is connected to the bracket, and the side of the fluorescent glue facing away from the bracket is a convex arc surface;

[0009] The lens cover is arranged outside the fluorescent glue and connected to the bracket. The outer wall of the lens on one side facing away from the bracket has a receiving groove, and the receiving groove is opposite to the light-emitting chip;

[0010] The diffuser is located in the accommodating groove, and the diffuser is a spherical segment-shaped structural component.

[0011] In an implementation of the present disclosure, the outer side wall of the lens includes a first light emitting surface and a second light emitting surface;

[0012] The first light emitting surface is a conical surface, the second light emitting surface is a cylindrical surface, the first light emitting surface and the second light emitting surface are coaxial, the end of the first light emitting surface with a larger diameter is connected to one end of the second light emitting surface, and the other end of the second light emitting surface is close to the bracket.

[0013] In another implementation of the present disclosure, both the first light emitting surface and the second light emitting surface are coaxial with the center line of the light emitting chip.

[0014] In yet another implementation of the present disclosure, a groove wall of the accommodating groove is spherical-cap-shaped, and the accommodating groove is coaxial with a center line of the light-emitting chip.

[0015] In yet another implementation of the present disclosure, one side of the bracket has a convex ring;

[0016] The convex ring is arranged around the light emitting chip, and the fluorescent glue is located inside the convex ring.

[0017] In yet another implementation of the present disclosure, the inner side wall of the convex ring is a conical surface, and the end of the inner side wall of the convex ring with a smaller diameter is close to the bracket.

[0018] In yet another implementation of the present disclosure, the outer side wall of the convex ring is a conical surface, and the end of the outer side wall of the convex ring with a larger diameter is close to the bracket.

[0019] In yet another implementation of the present disclosure, the lens is a polycarbonate structural component, and the diffuser is a polymethyl methacrylate structural component.

[0020] In a second aspect, an embodiment of the present disclosure provides an electronic device, comprising the lamp bead described in the first aspect.

[0021] In a third aspect, an embodiment of the present disclosure provides a method for manufacturing a lamp bead, the manufacturing method is used to manufacture the lamp bead described in the first aspect, and the manufacturing method comprises:

[0022] providing a bracket;

[0023] Welding a light-emitting chip on one side of the bracket;

[0024] Fluorescent glue is dripped on the outside of the light-emitting chip, and the fluorescent glue is cured so that a side of the fluorescent glue facing away from the bracket is a convex curved surface;

[0025] A lens is obtained by injection molding outside the solidified fluorescent glue, wherein the outer wall of the lens on one side facing away from the bracket has a receiving groove, and the receiving groove is opposite to the light-emitting chip;

[0026] A diffuser is obtained by injection molding in the accommodating groove, and the diffuser is a spherical segment-shaped structural member.

[0027] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

[0028] The lamp bead provided in the embodiment of the present disclosure includes a bracket, and a light-emitting chip, a fluorescent glue, a lens and a diffuser located on the same side of the bracket. The bracket is used to provide an installation basis for the light-emitting chip, the fluorescent glue, the lens and the diffuser, and to provide a power supply basis for the light-emitting chip. The fluorescent glue covers the outside of the light-emitting chip, and when the light-emitting chip emits light, it can excite the fluorescent glue to emit white light. In addition, since the side of the fluorescent glue facing away from the bracket is a convex arc surface, the fluorescent glue can play a role in diffusing light to a certain extent. Since the lens cover is arranged outside the fluorescent glue, a part of the light emitted from the fluorescent glue can be diffused by the outer side wall of the lens, and the other part is transmitted to the receiving groove. Since the diffuser is located in the receiving groove, and the diffuser is a spherical segment-shaped structural member, the diffuser can further diffuse the light transmitted to the receiving groove, thereby increasing the light-emitting angle of the lamp bead.

[0029] That is to say, the lamp beads provided in the embodiments of the present disclosure effectively increase the light-emitting angle of the lamp beads through the cooperation between the fluorescent glue, the lens and the diffuser, so that the light-emitting angle of the lamp beads is expanded from about 120° in the related art to about 180°. In this way, when the lamp beads are applied to the backlight module, a smaller number of lamp beads can meet the requirements of the irradiation range, effectively reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 is a cross-sectional view of a lamp bead provided in an embodiment of the present disclosure;

[0032] Figure 2 is a schematic diagram of light diffusion of a lamp bead provided in an embodiment of the present disclosure;

[0033] Figure 3 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure;

[0034] Figure 4 It is a flow chart of a method for manufacturing a lamp bead provided in an embodiment of the present disclosure.

[0035] The symbols in the figure mean the following:

[0036] 10. Bracket;

[0037] 20. Light-emitting chip;

[0038] 30. Fluorescent glue;

[0039] 40. Lens;

[0040] 410, accommodating groove; 420, first light emitting surface; 430, second light emitting surface;

[0041] 50. Diffuser;

[0042] 60. Projection ring;

[0043] 100, substrate; 200, lamp beads.

[0044] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0046] Lamp beads are a common lighting electronic device that mainly serves the function of lighting and can be used in the backlight module of a display.

[0047] In the related technology, the lamp beads are mainly packaged in the form of 2835 or 3030, which mainly include a bracket, a light-emitting chip and a fluorescent glue. One side of the bracket has a bowl-shaped groove, the light-emitting chip is located in the bowl-shaped groove, and the fluorescent glue is outside the light-emitting chip. The blue light emitted by the chip can excite the fluorescent glue to emit white light. The light is reflected by the bowl-shaped groove and then diffused to ensure a larger light-emitting angle.

[0048] However, due to the size of the bowl-shaped groove outlet, the luminous angle can usually only reach about 120 degrees. As a result, the backlight module requires more lamp beads to meet the requirements of the irradiation range, and the manufacturing cost increases accordingly.

[0049] In order to solve the above problems, the present disclosure provides a lamp bead. Figure 1 A cross-sectional view of a lamp bead provided in an embodiment of the present disclosure, see Figure 1 In this embodiment, the lamp bead includes a bracket 10 , and a light-emitting chip 20 , a fluorescent glue 30 , a lens 40 and a diffuser 50 located on the same side of the bracket 10 .

[0050] The light emitting chip 20 is connected to the bracket 10. The fluorescent glue 30 covers the light emitting chip 20 and is connected to the bracket 10. The side of the fluorescent glue 30 facing away from the bracket 10 is a convex arc surface. The lens 40 is covered outside the fluorescent glue 30 and is connected to the bracket 10. The outer wall of the lens 40 facing away from the bracket 10 has a receiving groove 410, and the receiving groove 410 is opposite to the light emitting chip 20. The diffuser 50 is located in the receiving groove 410, and the diffuser 50 is a spherical segment-shaped structural member.

[0051] The lamp bead provided in the embodiment of the present disclosure includes a bracket 10, and a light emitting chip 20, a fluorescent glue 30, a lens 40 and a diffuser 50 located on the same side of the bracket 10. The bracket 10 is used to provide a mounting base for the light emitting chip 20, the fluorescent glue 30, the lens 40 and the diffuser 50, and to provide a power supply base for the light emitting chip 20.

[0052] Figure 2 This is a schematic diagram of the light diffusion of the lamp beads. Figure 2 The solid arrow line in the figure is used as a light path diagram. Figure 2 In this embodiment, the fluorescent glue 30 covers the outside of the light-emitting chip 20. When the light-emitting chip 20 emits light, the fluorescent glue 30 can be excited to emit white light. In addition, since the side of the fluorescent glue 30 facing away from the bracket 10 is a convex arc surface, the fluorescent glue 30 can play a role in diffusing light to a certain extent. Since the lens 40 is covered outside the fluorescent glue 30, a part of the light emitted from the fluorescent glue 30 can be diffused by the outer wall of the lens 40, and the other part is transmitted to the receiving groove 410. Since the diffuser 50 is located in the receiving groove 410, and the diffuser 50 is a spherical segment-shaped structural member, the diffuser 50 can further diffuse the light transmitted to the receiving groove 410, thereby increasing the light-emitting angle of the lamp bead.

[0053] That is to say, the lamp beads provided in the embodiment of the present disclosure effectively increase the light-emitting angle of the lamp beads through the cooperation between the fluorescent glue 30, the lens 40 and the diffuser 50, so that the light-emitting angle of the lamp beads is expanded from about 120° in the related art to about 180°. In this way, when the lamp beads are applied to the backlight module, a smaller number of lamp beads can meet the requirements of the irradiation range, effectively reducing the manufacturing cost.

[0054] Continue to see Figure 1 In this embodiment, the outer side wall of the lens 40 includes a first light emitting surface 420 and a second light emitting surface 430. The first light emitting surface 420 is a conical surface, the second light emitting surface 430 is a cylindrical surface, the first light emitting surface 420 and the second light emitting surface 430 are coaxial, the end of the first light emitting surface 420 with a larger diameter is connected to one end of the second light emitting surface 430, and the other end of the second light emitting surface 430 is close to the bracket 10.

[0055] In the above implementation, the outer side wall of the lens 40 is used to allow light to be emitted from the side. The outer side wall of the lens 40 includes a first light emitting surface 420 and a second light emitting surface 430. Since the first light emitting surface 420 is a conical surface and the second light emitting surface 430 is a cylindrical surface, there is a certain angle between the first light emitting surface 420 and the second light emitting surface 430. In this way, it is beneficial for light to diffuse out from different angles, which can help increase the light emitting angle of the lamp bead.

[0056] Exemplarily, center lines of the first light emitting surface 420 and the second light emitting surface 430 are both perpendicular to the bracket 10 .

[0057] In the above implementation, the positional relationship between the first light emitting surface 420 and the second light emitting surface 430 and the bracket is designed in this way, which is conducive to diffusing the light from the first light emitting surface 420 and the second light emitting surface 430.

[0058] In this embodiment, the first light emitting surface 420 and the second light emitting surface 430 are both coaxial with the center line of the light emitting chip 20 .

[0059] In the above implementation, the light emitted by the light emitting chip 20 is spread out along its own center line, so making the first light emitting surface 420 and the second light emitting surface 430 coaxial with the center line of the light emitting chip 20 can help diffuse the light from the first light emitting surface 420 and the second light emitting surface 430.

[0060] It is worth noting that the first light emitting surface 420 and the second light emitting surface 430 are both coaxial with the center line of the light emitting chip 20 , which means that the center lines of the first light emitting surface 420 and the second light emitting surface 430 are both coaxial with the center line of the light emitting chip 20 .

[0061] In this embodiment, the groove wall of the accommodating groove 410 is in a spherical crown shape, and the accommodating groove 410 is coaxial with the center line of the light emitting chip 20 .

[0062] In the above implementation, since the diffuser 50 is in the shape of a spherical segment, the receiving groove 410 is designed to be in the shape of a spherical cap, which can better match the diffuser 50, thereby reliably receiving the diffuser 50 and positioning the diffuser 50. In addition, since the receiving groove 410 is coaxial with the center line of the light emitting chip 20, when the diffuser 50 is located in the receiving groove 410, the diffuser 50 is also coaxial with the center line of the light emitting chip 20, which is beneficial for light transmission to the diffuser 50, so that the diffuser 50 further diffuses the light.

[0063] In some examples, the bottom surface of the diffuser 50 is flush with the notch of the accommodating groove 410, that is, flush with the side of the lens 40 facing away from the bracket 10. Such a design can make the size of the diffuser 50 as large as possible, which is conducive to increasing the diffusion effect of the diffuser 50 on light.

[0064] In other examples, the bottom surface of the diffuser 50 is located in the receiving groove 410, that is, there is a certain distance between the bottom surface of the diffuser 50 and the side of the lens 40 facing away from the bracket 10. Such a design can effectively prevent the diffuser 50 from overflowing the receiving groove 410 during injection molding, thereby improving the manufacturing reliability of the lamp beads.

[0065] In this embodiment, the lens 40 is a polycarbonate structural component, and the diffuser 50 is a polymethyl methacrylate structural component.

[0066] In the above implementation, the polycarbonate structural member and the polymethyl methacrylate structural member are both transparent materials, which can transmit light well to ensure the brightness of the lamp beads. In addition, the melting point of the polycarbonate structural member is greater than that of the polymethyl methacrylate structural member. The polycarbonate structural member begins to melt at about 220°C, while the polymethyl methacrylate structural member begins to melt at about 160°C. In this way, the lens 40 can be injection molded first, and then secondary injection molding can be performed in the receiving groove 410 of the lens 40 to obtain the diffuser 50.

[0067] In this embodiment, the diffuser 50 is doped with an inorganic or organic light diffuser, which can further ensure its light diffusion effect.

[0068] Continue to see Figure 1 In this embodiment, one side of the bracket 10 has a convex ring 60 , the convex ring 60 is arranged around the light emitting chip 20 , and the fluorescent glue 30 is located in the convex ring 60 .

[0069] In the above implementation, the convex ring 60 is arranged around the light emitting chip 20, so that a groove-shaped space is formed at the light emitting chip 20 to accommodate the fluorescent glue 30. The convex ring 60 can be used to position and shape the uncured fluorescent glue 30 so that it is fixed outside the light emitting chip 20 without unnecessary flow. Moreover, under the restriction of the convex ring 60, it is also beneficial for the side of the fluorescent glue 30 facing away from the bracket 10 to form a convex arc surface.

[0070] Exemplarily, the inner side wall of the protruding ring 60 is a conical surface, and the end of the inner side wall of the protruding ring 60 with a smaller diameter is close to the bracket 10 .

[0071] In the above implementation, the inner wall of the protruding ring 60 is designed in this way, which can facilitate dripping the fluorescent glue 30 outside the light-emitting chip 20 by glue dripping, that is, the protruding ring 60 can play a certain guiding role in the process of dripping the fluorescent glue 30.

[0072] Exemplarily, the outer wall of the protruding ring 60 is a conical surface, and the end of the outer wall of the protruding ring 60 with a larger diameter is close to the bracket 10 .

[0073] In the above implementation, the outer wall of the protruding ring 60 is designed in this way, so that the bottom size of the protruding ring 60 can be larger, thereby ensuring the stability of the protruding ring 60 on the bracket 10, thereby effectively improving the overall reliability of the lamp bead.

[0074] In this embodiment, the bracket 10 is a sheet molding compound (SMC) having good anti-corrosion and insulation properties. The bracket 10 has a soldering pad for soldering the light emitting chip 20 .

[0075] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure, combined with Figure 3 , the electronic device comprises Figures 1 to 2 The lamp beads shown.

[0076] Since the electronic device includes Figures 1 to 2 The lamp beads shown, so the electronic device has Figures 1 to 2 All the beneficial effects of the lamp beads shown will not be repeated here.

[0077] Exemplarily, the electronic device is a light-emitting device such as a backlight module or a light bar, and the present disclosure does not limit the type of the electronic device.

[0078] When the electronic device is a backlight module, the electronic device includes a substrate 100 and a plurality of lamp beads 200 , and the lamp beads 200 are evenly spaced and arranged on one side of the substrate 100 .

[0079] In the above implementation, the substrate 100 provides an installation basis and a power supply basis for the lamp bead 200, so that the lamp bead 200 can emit light reliably and normally.

[0080] Figure 4 A flowchart of a method for manufacturing a lamp bead provided in an embodiment of the present disclosure, combined with Figure 4 In this embodiment, the manufacturing method includes:

[0081] Step 401: Provide a bracket 10.

[0082] Exemplarily, the bracket 10 is a sheet molding compound, and a proper amount of high-temperature lead-free solder paste is applied to the internal pads of the bracket 10 to prepare for step 402 .

[0083] Step 402 : Solder the light emitting chip 20 on one side of the bracket 10 .

[0084] For example, in step 402, the light emitting chip 20 is mounted on the applied lead-free solder paste by a die bonding machine. During the die bonding process, the light emitting chip 20 is bonded in the direction according to the positive and negative pole markings of the bracket 10, and then the solder paste under the light emitting chip 20 is melted in a high temperature furnace, thereby fixing the light emitting chip 20.

[0085] Step 403 : dripping fluorescent glue 30 on the outside of the light emitting chip 20 , and curing the fluorescent glue 30 , so that the side of the fluorescent glue 30 facing away from the bracket 10 is a convex arc surface.

[0086] Exemplarily, step 403 is implemented by the following steps:

[0087] First, the bracket 10 with the light-emitting chip 20 fixed thereon is placed into a fixture, and the fluorescent glue 30 containing fluorescent powder is dripped on the chip by dispensing, so that the side of the fluorescent glue 30 facing away from the bracket 10 is a convex arc surface.

[0088] Then, the bracket 10 with the fluorescent glue 30 dropped thereon is placed in an oven, the oven temperature is set to 150° C., the baking time is set to 2 hours, and the colloid is solidified through high-temperature baking.

[0089] Step 404 : Injection molding the solidified fluorescent glue 30 to obtain the lens 40 .

[0090] Exemplarily, the lens 40 is covered outside the fluorescent glue 30 and connected to the bracket 10 . The outer wall of the lens 40 facing away from the bracket 10 has a receiving groove 410 , and the receiving groove 410 is opposite to the light-emitting chip 20 .

[0091] Exemplarily, the diameter of the lens 40 is 6 mm.

[0092] Exemplarily, the material of the lens 40 is polycarbonate, which has a melting point of about 220°C.

[0093] Step 405 : injection molding the diffuser 50 in the receiving groove 410 .

[0094] Exemplarily, the diffuser 50 is located in the receiving groove 410 , and the diffuser 50 is a spherical segment-shaped structural component.

[0095] Exemplarily, the material of the diffuser 50 is polymethyl methacrylate, which has a melting point of 160° C.

[0096] Since the melting point of the polycarbonate structural member is higher than that of the polymethyl methacrylate structural member, the polycarbonate structural member begins to melt at about 220° C., while the polymethyl methacrylate structural member begins to melt at about 160° C. In this way, the lens 40 can be first injection molded, and then a secondary injection molding is performed in the receiving groove 410 of the lens 40 to obtain the diffuser 50. In addition, during the process of injection molding the diffuser 50, the lens 40 will not be affected.

[0097] The lamp bead manufactured by the manufacturing method provided by the embodiment of the present disclosure has the fluorescent glue 30 covering the outside of the light-emitting chip 20. When the light-emitting chip 20 emits light, the fluorescent glue 30 can be excited to emit white light. In addition, since the side of the fluorescent glue 30 facing away from the bracket 10 is a convex arc surface, the fluorescent glue 30 can play a role in diffusing light to a certain extent. Since the lens 40 is covered outside the fluorescent glue 30, a part of the light emitted from the fluorescent glue 30 can be diffused by the outer side wall of the lens 40, and the other part is transmitted to the receiving groove 410. Since the diffuser 50 is located in the receiving groove 410, and the diffuser 50 is a spherical segment-shaped structural member, the diffuser 50 can further diffuse the light transmitted to the receiving groove 410, thereby increasing the light-emitting angle of the lamp bead.

[0098] That is to say, the lamp beads provided in the embodiment of the present disclosure effectively increase the light-emitting angle of the lamp beads through the cooperation between the fluorescent glue 30, the lens 40 and the diffuser 50, so that the light-emitting angle of the lamp beads is expanded from about 120° in the related art to about 180°. In this way, when the lamp beads are applied to the backlight module, a smaller number of lamp beads can meet the requirements of the irradiation range, effectively reducing the manufacturing cost.

[0099] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0100] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A lamp bead, characterized in that: It comprises a bracket (10), and a light-emitting chip (20), a fluorescent glue (30), a lens (40) and a diffuser (50) located on the same side of the bracket (10); The light emitting chip (20) is connected to the bracket (10); The fluorescent glue (30) covers the outside of the light-emitting chip (20) and is connected to the bracket (10); a surface of the fluorescent glue (30) facing away from the bracket (10) is an outwardly convex curved surface; The lens (40) is disposed outside the fluorescent glue (30) and is connected to the bracket (10); the outer wall of the lens (40) on one side facing away from the bracket (10) has a receiving groove (410), and the receiving groove (410) is opposite to the light-emitting chip (20); The diffuser (50) is located in the accommodating groove (410), and the diffuser (50) is a spherical segment-shaped structural component.

2. The lamp bead according to claim 1, characterized in that: The outer side wall of the lens (40) comprises a first light emitting surface (420) and a second light emitting surface (430); The first light emitting surface (420) is a conical surface, the second light emitting surface (430) is a cylindrical surface, the first light emitting surface (420) and the second light emitting surface (430) are coaxial, the end of the first light emitting surface (420) with a larger diameter is connected to one end of the second light emitting surface (430), and the other end of the second light emitting surface (430) is close to the bracket (10).

3. The lamp bead according to claim 2, characterized in that: The first light emitting surface (420) and the second light emitting surface (430) are both coaxial with the center line of the light emitting chip (20).

4. The lamp bead according to claim 1, characterized in that: The groove wall of the accommodating groove (410) is in a spherical crown shape, and the accommodating groove (410) is coaxial with the center line of the light-emitting chip (20).

5. The lamp bead according to claim 1, characterized in that: One side of the bracket (10) has a convex ring (60); The convex ring (60) is arranged around the light-emitting chip (20), and the fluorescent glue (30) is located inside the convex ring (60).

6. The lamp bead according to claim 5, characterized in that: The inner side wall of the convex ring (60) is a conical surface, and the end of the inner side wall of the convex ring (60) with a smaller diameter is close to the bracket (10).

7. The lamp bead according to claim 5, characterized in that: The outer wall of the convex ring (60) is a conical surface, and the end of the outer wall of the convex ring (60) with a larger diameter is close to the bracket (10).

8. The lamp bead according to claim 1, characterized in that: The lens (40) is a polycarbonate structural component, and the diffuser (50) is a polymethyl methacrylate structural component.

9. An electronic device, characterized in that: Including the lamp bead described in claim 1.

10. A method for manufacturing a lamp bead, characterized in that: The manufacturing method is used to manufacture the lamp bead according to claim 1, and the manufacturing method comprises: Providing a bracket (10); Welding a light-emitting chip (20) on one side of the bracket (10); Fluorescent glue (30) is dripped onto the outside of the light-emitting chip (20), and the fluorescent glue (30) is cured, so that a surface of the fluorescent glue (30) facing away from the bracket (10) is a convex curved surface; A lens (40) is obtained by injection molding outside the solidified fluorescent glue (30), wherein the outer wall of the lens (40) on one side facing away from the bracket (10) has a receiving groove (410), and the receiving groove (410) is opposite to the light-emitting chip (20); A diffuser (50) is obtained by injection molding in the accommodating groove (410), and the diffuser (50) is a spherical segment-shaped structural component.

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