High light efficient light-emitting diode light source

Abstract

To provide a high light efficient light-emitting diode light source.SOLUTION: A high light efficient light-emitting diode light source includes a bracket, a positive electrode pad, a negative electrode pad, a first light-emitting diode die and a second light-emitting diode die. The positive electrode pad is arranged on the bracket. The negative electrode pad is arranged on the bracket, and a groove is formed between the negative electrode pad and the positive electrode pad. The first light-emitting diode die is arranged on the positive electrode pad, and is electrically connected to the positive electrode pad and the negative electrode pad. The second light-emitting diode die is arranged on the negative electrode pad, and is electrically connected to the positive electrode pad and the negative electrode pad. A part of the first light-emitting diode die protrudes from the positive electrode pad to shield a part of the groove.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to light emitting diode light sources, and more particularly to high light efficiency light emitting diode light sources. [Background technology]

[0002] The light-emitting diode die of a conventional light-emitting diode light source is usually arranged on the negative electrode pad of a light-emitting diode bracket. If a light-emitting diode light source has two or more light-emitting diode dies of the same size and these light-emitting diode dies are arranged on the negative electrode pad of a light-emitting diode bracket, it will cause serious light interference. The light interference will greatly reduce the light efficiency of the light-emitting diode light source and will not effectively utilize the space of the light-emitting diode bracket.

[0003] When the LED light source has a large LED die and a small LED die, the large LED die is usually placed on the negative electrode pad of the LED bracket, and the small LED die is usually placed on the positive electrode pad of the LED bracket. However, the currents of the two LED dies are different, so the voltages of the two LED dies are also different. Therefore, the heat generation of the two LED dies is also uneven, which makes the LED light source easily damaged and greatly reduces reliability.

[0004] Although China Patent Application Publication No. 112510026 and China Patent Application Publication No. CN113725203 disclose related technologies of light-emitting diode light sources, they still cannot effectively solve the above problems. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] China Patent Application Publication No. 112510026 [Patent Document 2] China Patent Publication No. 113725203 Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a high light efficiency light emitting diode light source. [Means for solving the problem]

[0007] The present invention provides a high light efficiency light emitting diode light source including a bracket, a positive pad, a negative pad, a first light emitting diode die and a second light emitting diode die. The positive pad is disposed on the bracket. The negative pad is disposed on the bracket, and a groove is formed between the negative pad and the positive pad. The first light emitting diode die is disposed on the positive pad and electrically connected to the positive pad and the negative pad. The second light emitting diode die is disposed on the negative pad and electrically connected to the positive pad and the negative pad. A portion of the first light emitting diode die protrudes from the positive pad and shields a portion of the groove.

[0008] In one refinement of the present invention, the first light emitting diode die includes a first portion and a second portion, the first portion protruding from the positive electrode pad and the second portion not protruding from the positive electrode pad, and the width of the first portion is 5-50% of the width of the groove.

[0009] In one refinement of the present invention, the first light emitting diode die includes a first portion and a second portion, the first portion protruding from the positive electrode pad and the second portion not protruding from the positive electrode pad, and the width of the first portion is 30-50% of the width of the groove.

[0010] In one refinement of the present invention, the first light emitting diode die includes a first portion and a second portion, the first portion protruding from the positive electrode pad and the second portion not protruding from the positive electrode pad, and the width of the first portion is 45-50% of the width of the groove.

[0011] In a refinement of the present invention, the first light emitting diode die and the second light emitting diode die are rectangular.

[0012] In a refinement of the present invention, the first light emitting diode die and the second light emitting diode die are parallel to each other.

[0013] In a refinement of the invention, the first light emitting diode die and said second light emitting diode die are perpendicular to each other.

[0014] In one refinement of the present invention, the light emitting diode light source further includes a third light emitting diode die disposed on the negative pad and electrically connected to the positive pad and the negative pad.

[0015] In a refinement of the present invention, the third light emitting diode die is rectangular.

[0016] In a refinement of the present invention, the second light emitting diode die and the third light emitting diode die are parallel to each other. The second light emitting diode die and the third light emitting diode die are perpendicular to the first light emitting diode die. Effect of the Invention

[0017] Based on the above, a high light efficiency light emitting diode light source according to an embodiment of the present invention may have one or more of the following advantages. (1) The LED light source has a special groove structure, so that a part of the first LED die arranged on the positive pad can protrude from the positive pad and cover a part of the groove between the positive pad and the negative pad. In this way, the size of the first LED die is not limited by the area of ​​the positive pad, and the size of the first LED die can be matched with the size of the second LED die arranged on the negative pad. Therefore, the heat generation of the first LED die and the second LED die are also matched, and the service life of the first LED die can be close to that of the second LED die. Therefore, the above structural design can make the service life of the LED light source more stable and improve the reliability of the LED light source. (2) Because the light-emitting diode light source has a special groove structure, a part of the first light-emitting diode die arranged on the positive electrode pad can protrude from the positive electrode pad and shield a part of the groove between the positive electrode pad and the negative electrode pad. In this way, the size of the first light-emitting diode die is not limited by the area of ​​the positive electrode pad. Therefore, the negative electrode pad can accommodate two light-emitting diode dies (the second light-emitting diode die and the third light-emitting diode die), and the size of the multiple light-emitting diode dies can be effectively increased. (3) The first LED die is disposed on the positive pad, and the second LED die is disposed on the negative pad, so that the LED dies are uniformly distributed on the positive pad and the negative pad. In addition, a part of the first LED die disposed on the positive pad can protrude from the positive pad. Through the above structural design, the heat dissipation effect of the LED light source can be effectively improved, and the service life of the LED light source can be further improved. (4) The light-emitting diode light source has a special groove structure, which can effectively reduce the optical interference between the first light-emitting diode die and the second light-emitting diode die (and the third light-emitting diode die), so that the optical efficiency of the light-emitting diode light source can be effectively improved. Therefore, the overall performance of the light-emitting diode light source can be greatly improved. (5) The design of the light emitting diode light source is simple, so that the desired effect can be obtained without a significant increase in cost, and the light emitting diode light source can realize high practicality, so that the application of the light emitting diode light source can be made wider and the needs of actual applications can be better met. [Brief description of the drawings]

[0018] [Figure 1] 1 is a top view showing the structure of a high light-efficiency light-emitting diode light source according to a first embodiment of the present invention. [Diagram 2] 1 is a side view showing the structure of a high light-efficiency light-emitting diode light source according to a first embodiment of the present invention. [Diagram 3]FIG. 5 is a top view showing the structure of a high light-efficiency light-emitting diode light source according to a second embodiment of the present invention. [Figure 4] FIG. 11 is a top view showing the structure of a high light-efficiency light-emitting diode light source according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In the following embodiments, detailed features and advantages of the present invention are described, the contents of which are sufficient to enable those skilled in the art to understand the technical contents of the present invention and implement them accordingly, and the disclosure contents, claims and drawings in this specification enable those skilled in the art to easily understand the objectives and advantages of the present invention.

[0020] Hereinafter, the embodiments of the high light-efficiency light-emitting diode light source of the present invention will be described with reference to the related drawings, and in order to make it easier to understand and to describe in the drawings, the dimensions and ratios of each member in the drawings may be exaggerated or reduced. In the following description and / or claims, when a member is described as being "connected" or "coupled" to another member, it may be directly connected or coupled to the other member, or an intermediate member may be present. When a member is described as being "directly connected" or "directly coupled" to another member, there is no intermediate member, and other terms for describing the relationship between members or layers should be interpreted in the same manner. For ease of understanding, the same members in the following embodiments will be described with the same reference numerals.

[0021] 1 is a top view showing the structure of a high light-efficiency light-emitting diode light source according to a first embodiment of the present invention. As shown in the figure, the light-emitting diode light source 1 includes a bracket 11, a positive electrode pad 12, a negative electrode pad 13, a first light-emitting diode die L1 and a second light-emitting diode die L2.

[0022] The positive electrode pad 12 and the negative electrode pad 13 are disposed on the bracket 11. Between the negative electrode pad 13 and the positive electrode pad 12, a groove GV is formed.

[0023] The first light-emitting diode die L1 is disposed on the positive electrode pad 12 and electrically connected to the positive electrode pad 12 and the negative electrode pad 13. Here, the first light-emitting diode die L1 is connected to the positive electrode pad 12 via the first positive electrode lead PC1 and to the negative electrode pad 13 via the first negative electrode lead NC1. In this embodiment, the first light-emitting diode die L1 is rectangular. In another embodiment, the first light-emitting diode die L1 may be of other shapes and can be changed according to actual needs.

[0024] The second light-emitting diode die L2 is disposed on the negative electrode pad 13 and is electrically connected to the positive electrode pad 12 and the negative electrode pad 13. Among them, the second light-emitting diode die L2 is connected to the positive electrode pad 12 via the second positive electrode lead PC2 and to the negative electrode pad 13 via the second negative electrode lead NC2. In this embodiment, the second light-emitting diode die L2 is rectangular. In another embodiment, the second light-emitting diode die L2 may have other shapes and can be changed according to actual needs. The first light-emitting diode die L1 and the second light-emitting diode die L2 are parallel to each other. That is, the symmetry axis (parallel to the long side) of the first light-emitting diode die L1 and the symmetry axis (parallel to the long side) of the second light-emitting diode die L2 are parallel to each other.

[0025] The light emitting diode light source 1 has a special groove structure. As is clear from the figure, a part of the first light emitting diode die L2 protrudes from the positive electrode pad 12 and covers a part of the groove GV.

[0026] Of course, this embodiment is only used for illustrative purposes and does not limit the scope of the present invention, and any equivalent modifications or alterations made based on the high light-efficiency light-emitting diode light source 1 of this embodiment should still fall within the protection scope of the present invention.

[0027] 2 is a side view showing the structure of a high light-efficiency light-emitting diode light source according to a first embodiment of the present invention. As shown in the figure, a first light-emitting diode die L1 includes a first part and a second part. The first part protrudes from the positive electrode pad 12, and the second part does not protrude from the positive electrode pad 12.

[0028] The width of the first portion of the first light emitting diode die L1 is W1, and the width of the second portion of the first light emitting diode die L1 is W2. In addition, the width of the groove GV is W3. The width W1 of the first portion of the first light emitting diode die L1 is 5% to 50% of the width W3 of the groove GV. In addition, the width W1 of the first portion of the first light emitting diode die L1 may be 30% to 50% of the width W3 of the groove GV.

[0029] In this embodiment, the width W1 of the first portion of the first light emitting diode die L1 may be 45% to 50% (close to 50%) of the width W3 of the groove GV. In addition, the area of ​​the groove GV shielded by the first portion of the first light emitting diode die L1 is greater than 1 / 3 of the total area of ​​the groove GV, but less than 1 / 2 of the total area of ​​the groove GV. The above-mentioned structural design can most effectively reduce the optical interference between the first light emitting diode die L1 and the second light emitting diode die L2, so that the optical efficiency of the light emitting diode light source 1 can be effectively improved. Therefore, the overall performance of the light emitting diode light source 1 can be greatly improved.

[0030] As can be seen from the above, since the light emitting diode light source 1 has a special groove structure, a part (first part) of the first light emitting diode die L1 provided on the positive electrode pad 12 protrudes from the positive electrode pad 12 and shields a part of the groove GV between the positive electrode pad 12 and the negative electrode pad 13. In this way, since the size of the first light emitting diode die L1 is not limited by the area of ​​the positive electrode pad 12, the size of the first light emitting diode die L1 can be matched with the size of the second light emitting diode die L2 arranged on the negative electrode pad 13. Therefore, the heat generation amount of the first light emitting diode die L1 and the second light emitting diode die L2 also match, and the service life of the first light emitting diode die L1 can be close to the service life of the second light emitting diode die L2. Therefore, the above structural design can make the service life of the light emitting diode light source 1 more stable and improve the reliability of the light emitting diode light source 1.

[0031] In addition, the first light emitting diode die L1 is disposed on the positive electrode pad 12, and the second light emitting diode die L2 is disposed on the negative electrode pad 13, and these light emitting diode dies can be uniformly distributed on the positive electrode pad 12 and the negative electrode pad 13. In addition, a part of the first light emitting diode die L1 disposed on the positive electrode pad 12 may protrude from the positive electrode pad 12. Through the above structural design, the heat dissipation effect of the light emitting diode light source 1 can be effectively improved, and the service life of the light emitting diode light source 1 can be further improved.

[0032] Of course, this embodiment is only used for illustrative purposes and does not limit the scope of the present invention, and any equivalent modifications or alterations made based on the high light-efficiency light-emitting diode light source 1 of this embodiment should still fall within the protection scope of the present invention.

[0033] 3 is a top view showing the structure of a high light-efficiency light-emitting diode light source according to a second embodiment of the present invention. As shown in the figure, the light-emitting diode light source 1 includes a bracket 11, a positive electrode pad 12, a negative electrode pad 13, a first light-emitting diode die L1 and a second light-emitting diode die L2.

[0034] The positive electrode pad 12 and the negative electrode pad 13 are disposed on the bracket 11. Between the negative electrode pad 13 and the positive electrode pad 12, a groove GV is formed.

[0035] The first light-emitting diode die L1 is disposed on the positive electrode pad 12 and electrically connected to the positive electrode pad 12 and the negative electrode pad 13. Here, the first light-emitting diode die L1 is connected to the positive electrode pad 12 via the first positive electrode lead PC1 and to the negative electrode pad 13 via the first negative electrode lead NC1. In this embodiment, the first light-emitting diode die L1 is rectangular. In another embodiment, the first light-emitting diode die L1 may be of other shapes and can be changed according to actual needs.

[0036] The second light-emitting diode die L2 is disposed on the negative electrode pad 13 and electrically connected to the positive electrode pad 12 and the negative electrode pad 13. Here, the second light-emitting diode die L2 is connected to the positive electrode pad 12 via the second positive electrode lead PC2 and to the negative electrode pad 13 via the second negative electrode lead NC2. In this embodiment, the second light-emitting diode die L2 is rectangular. In another embodiment, the second light-emitting diode die L2 may be of other shapes and can be changed according to actual needs.

[0037] What is different from the previous embodiment is that in this embodiment, the first light emitting diode die L1 and the second light emitting diode die L2 are perpendicular to each other, that is, the symmetry axis (parallel to the long side) of the first light emitting diode die L1 and the symmetry axis (parallel to the long side) of the second light emitting diode die L2 are perpendicular to each other.

[0038] Similarly, the light emitting diode light source 1 also has a special groove structure. As is clear from the figure, a part of the first light emitting diode die L2 protrudes from the positive electrode pad 12 and shields a part of the groove GV.

[0039] Similarly, the above structural design can make the service life of the light emitting diode light source 1 more stable and improve the reliability of the light emitting diode light source 1. In addition, the above structural design can also effectively reduce the optical interference between the first light emitting diode die L1 and the second light emitting diode die L2, so as to effectively improve the optical efficiency of the light emitting diode light source 1. Therefore, the overall performance of the light emitting diode light source 1 can be greatly improved.

[0040] Of course, this embodiment is only used for illustrative purposes and does not limit the scope of the present invention, and any equivalent modifications or alterations made based on the high light-efficiency light-emitting diode light source 1 of this embodiment should still fall within the protection scope of the present invention.

[0041] In addition, the conventional light-emitting diode light source light-emitting diode die is usually placed on the negative electrode pad of the light-emitting diode bracket. The above structure will cause serious light interference, greatly reduce the light efficiency of the light-emitting diode light source, and make it impossible to effectively utilize the space of the light-emitting diode bracket. In addition, when the light-emitting diode light source has a large light-emitting diode die and a small light-emitting diode die, the large light-emitting diode die is usually placed on the negative electrode pad of the light-emitting diode bracket, and the small light-emitting diode die is usually placed on the positive electrode pad of the light-emitting diode bracket. However, since the currents of the two light-emitting diode dies are different, the voltages of the two light-emitting diode dies are also different. Therefore, the heat generation amount of the two light-emitting diode dies is also uneven, making the light-emitting diode light source easily damaged and greatly reducing the reliability. On the contrary, according to the first and second embodiments of the present invention, the light-emitting diode light source has a special groove structure, so that a part of the first light-emitting diode die placed on the positive electrode pad can protrude from the positive electrode pad and cover a part of the groove between the positive electrode pad and the negative electrode pad. In this way, the size of the first light emitting diode die is not limited by the area of ​​the positive electrode pad, and the size of the first light emitting diode die can be matched with the size of the second light emitting diode die disposed on the negative electrode pad. Therefore, the heat generation amount of the first light emitting diode die and the second light emitting diode die are also matched, and the service life of the first light emitting diode die can be close to the service life of the second light emitting diode die. Therefore, the above structure design can make the service life of the light emitting diode light source more stable and improve the reliability of the light emitting diode light source.

[0042] In addition, the first LED die can be disposed on the positive pad, the second LED die can be disposed on the negative pad, and the LED dies can be uniformly distributed on the positive pad and the negative pad. In addition, a part of the first LED die disposed on the positive pad can protrude from the positive pad. Through the above structural design, the heat dissipation effect of the LED light source can be effectively improved, and the service life of the LED light source can be further improved.

[0043] In addition, the light emitting diode light source has a special groove structure, which can effectively reduce the light interference between the first light emitting diode die and the second light emitting diode die, so that the light efficiency of the light emitting diode light source can be effectively improved. Therefore, the overall performance of the light emitting diode light source can be greatly improved.

[0044] Furthermore, since the design of the light emitting diode light source is simple, the desired effect can be obtained without a significant increase in cost, and the light emitting diode light source can realize high practicality. Therefore, the application of the light emitting diode light source can be made more extensive and the needs of actual applications can be better met. From the above, it can be seen that the high light efficiency light emitting diode light source according to the first and second embodiments of the present invention can indeed achieve excellent technical effects.

[0045] 4 is a top view showing the structure of a high light-efficiency light-emitting diode light source according to a third embodiment of the present invention. As shown in the figure, the light-emitting diode light source 1 includes a bracket 11, a positive electrode pad 12, a negative electrode pad 13, a first light-emitting diode die L1 and a second light-emitting diode die L2.

[0046] Different from the above-described embodiment, in this embodiment, the light emitting diode light source 1 further includes a third diode die L3. The positive electrode pad 12 and the negative electrode pad 13 are disposed on the bracket 11. Between the negative electrode pad 13 and the positive electrode pad 12, a groove GV is formed.

[0047] The first light-emitting diode die L1 is disposed on the positive electrode pad 12 and electrically connected to the positive electrode pad 12 and the negative electrode pad 13. Here, the first light-emitting diode die L1 is connected to the positive electrode pad 12 via the first positive electrode lead PC1 and to the negative electrode pad 13 via the first negative electrode lead NC1. In this embodiment, the first light-emitting diode die L1 is rectangular. In another embodiment, the first light-emitting diode die L1 may be of other shapes and can be changed according to actual needs.

[0048] The second light-emitting diode die L2 is disposed on the negative electrode pad 13 and electrically connected to the positive electrode pad 12 and the negative electrode pad 13. Here, the second light-emitting diode die L2 is connected to the positive electrode pad 12 via the second positive electrode lead PC2 and to the negative electrode pad 13 via the second negative electrode lead NC2. In this embodiment, the second light-emitting diode die L2 is rectangular. In another embodiment, the second light-emitting diode die L2 may be of other shapes and can be changed according to actual needs.

[0049] The third light-emitting diode die L3 is disposed on the negative electrode pad 13 and electrically connected to the positive electrode pad 12 and the negative electrode pad 13. Here, the third light-emitting diode die L3 is connected to the positive electrode pad 12 via the third positive electrode lead PC3 and to the negative electrode pad 13 via the third negative electrode lead NC3. In this embodiment, the third light-emitting diode die L3 is rectangular. In another embodiment, the third light-emitting diode die L3 may be of other shapes and can be changed according to actual needs.

[0050] In this embodiment, the second light emitting diode die L2 and the third light emitting diode die L3 are parallel to each other. The second light emitting diode die L2 and the third light emitting diode die L3 are perpendicular to the first light emitting diode die L1. That is, the symmetry axis (parallel to its long side) of the second light emitting diode die L2 and the symmetry axis (parallel to its long side) of the third light emitting diode die L3 are parallel to each other. The symmetry axis (parallel to its long side) of the second light emitting diode die L2 and the symmetry axis (parallel to its long side) of the third light emitting diode die L3 are perpendicular to the symmetry axis (parallel to its long side) of the first light emitting diode die L1.

[0051] The light emitting diode light source 1 has a special groove structure. As is clear from the figure, a part of the first light emitting diode die L2 protrudes from the positive electrode pad 12 and shields a part of the groove GV. In this way, the size of the first light emitting diode die L1 is not limited by the area of ​​the positive electrode pad 12. Therefore, the negative electrode pad 13 can accommodate the second light emitting diode die L2 and the third light emitting diode die L3, and the sizes of the multiple light emitting diode dies can all be effectively improved.

[0052] In addition, the above-mentioned groove structure can effectively reduce the light interference between the first light emitting diode die L1, the second light emitting diode die L2 and the third light emitting diode die L3, so as to effectively improve the light efficiency of the light emitting diode light source 1. Therefore, the overall performance of the light emitting diode light source 1 can be greatly improved.

[0053] In addition, the heat generation amount of the first light emitting diode die L1, the second light emitting diode die L2 and the third light emitting diode die L3 are also the same. Therefore, the service life of the first light emitting diode die L1, the second light emitting diode die L2 and the third light emitting diode die L3 can be close to being the same. Therefore, through the above structure design, the service life of the light emitting diode light source 1 can be more stable and the reliability of the light emitting diode light source 1 can be improved.

[0054] Of course, this embodiment is only used for illustrative purposes and does not limit the scope of the present invention, and any equivalent modifications or alterations made based on the high light-efficiency light-emitting diode light source 1 of this embodiment should still fall within the protection scope of the present invention.

[0055] In summary, according to the first, second and third embodiments of the present invention, the LED light source has a special groove structure, so that a part of the first LED die arranged on the positive electrode pad protrudes from the positive electrode pad and can shield a part of the groove between the positive electrode pad and the negative electrode pad. In this way, the size of the first LED die is not limited by the area of ​​the positive electrode pad, and the size of the first LED die can be matched with the size of the second LED die arranged on the negative electrode pad. Therefore, the heat generation amount of the first LED die and the second LED die are also matched, and the service life of the first LED die can be close to the service life of the second LED die. Therefore, the above structure design can make the service life of the LED light source more stable and improve the reliability of the LED light source.

[0056] According to the first, second and third embodiments of the present invention, the light emitting diode light source has a special groove structure, so that a part of the first light emitting diode die arranged on the positive electrode pad can protrude from the positive electrode pad and shield a part of the groove between the positive electrode pad and the negative electrode pad. In this way, the size of the first light emitting diode die is not limited by the area of ​​the positive electrode pad. Therefore, the negative electrode pad can accommodate two light emitting diode dies (the second light emitting diode die and the third light emitting diode die), and the size of the multiple light emitting diode dies can be effectively increased.

[0057] In addition, according to the first, second and third embodiments of the present invention, the first light emitting diode die is disposed on the positive electrode pad, and the second light emitting diode die is disposed on the negative electrode pad, so that the light emitting diode dies can be uniformly distributed on the positive electrode pad and the negative electrode pad. In addition, a part of the first light emitting diode die disposed on the positive electrode pad can protrude from the positive electrode pad. Through the above structural design, the heat dissipation effect of the light emitting diode light source can be effectively improved, and the service life of the light emitting diode light source can be further improved.

[0058] In addition, according to the first, second and third embodiments of the present invention, the light emitting diode light source has a special groove structure, which can effectively reduce the optical interference between the first light emitting diode die and the second light emitting diode die (and the third light emitting diode die), so that the optical efficiency of the light emitting diode light source can be effectively improved. Therefore, the overall performance of the light emitting diode light source can be greatly improved.

[0059] Furthermore, according to the first, second and third embodiments of the present invention, the design of the light emitting diode light source is simple, so that the desired effect can be obtained without a significant increase in cost, and the light emitting diode light source can be made highly practical, so that the application of the light emitting diode light source can be made more extensive and the needs of actual applications can be better met.

[0060] Although the above embodiments are described in this specification, it should be noted that they do not limit the scope of the claims of the present invention. Therefore, the changes and modifications to the embodiments described in this specification based on the innovative concept of the present invention, or the replacement of equivalent structures or equivalent processes made using the contents of the specification and drawings of the present invention, and the direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of the claims of the present invention. [Explanation of symbols]

[0061] 1 Light Emitting Diode Light Source 11 Bracket 12 Positive Pad 13 Negative pad L1 First light emitting diode die L2 Second light emitting diode die L3 3rd LED die PC1 1st positive lead NC1 1st negative lead PC2 Second positive lead NC2 Second negative lead PC3 3rd positive lead NC3 3rd negative lead W1: width of the first portion of the first light emitting diode die W2 Width of the second portion of the first light emitting diode die W3 Groove width GV groove

Claims

1. A bracket and A positive pad disposed on the bracket; a negative electrode pad disposed on a bracket and having a groove formed between the negative electrode pad and the positive electrode pad; a first light emitting diode die disposed on the positive pad and electrically connected to the positive pad and the negative pad; a second light emitting diode die disposed on the negative pad and electrically connected to the positive pad and the negative pad; Equipped with a portion of the first light emitting diode die protruding from the positive pad and shielding a portion of the groove.

2. 2. The high light-efficiency light-emitting diode light source of claim 1, wherein the first light-emitting diode die includes a first portion and a second portion, the first portion protruding from the positive electrode pad, the second portion not protruding from the positive electrode pad, and a width of the first portion is 5-50% of a width of the groove.

3. 2. The high light-efficiency light-emitting diode light source of claim 1, wherein the first light-emitting diode die includes a first portion and a second portion, the first portion protruding from the positive electrode pad, the second portion not protruding from the positive electrode pad, and a width of the first portion is 30-50% of a width of the groove.

4. 2. The high light-efficiency light-emitting diode light source of claim 1, wherein the first light-emitting diode die includes a first portion and a second portion, the first portion protruding from the positive electrode pad, the second portion not protruding from the positive electrode pad, and a width of the first portion is 45-50% of a width of the groove.

5. 2. The high light efficiency light emitting diode light source of claim 1, wherein the first light emitting diode die and the second light emitting diode die are rectangular.

6. 6. The high light efficiency light emitting diode light source of claim 5, wherein the first light emitting diode die and the second light emitting diode die are parallel to each other.

7. 6. The high light efficiency light emitting diode light source of claim 5, wherein the first light emitting diode die and the second light emitting diode die are perpendicular to each other.

8. 6. The high light efficiency light emitting diode light source of claim 5, further comprising a third light emitting diode die disposed on the negative electrode pad and electrically connected to the positive electrode pad and the negative electrode pad.

9. 9. The high light efficiency light emitting diode light source of claim 8, wherein the third light emitting diode die is rectangular.

10. 10. The high light efficiency light emitting diode light source of claim 9, wherein the second light emitting diode die and the third light emitting diode die are parallel to each other, and the second light emitting diode die and the third light emitting diode die are perpendicular to the first light emitting diode die.

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