Small-size LED light source, display module and display screen

Abstract

The utility model provides a small-size LED light source. The small-size LED light source comprises a support body, a plurality of monochromatic chips and a lens body. Only one accommodating cavity is formed in the surface of the bracket main body; the plurality of single-color chips are arranged in the accommodating cavity, so that the width of the cross section of the bracket main body is 1.51-2.11 mm, and the width of the accommodating cavity is 0.85-1.45 mm; the lens main body comprises a lens cover and a plurality of lenses, and the plurality of lenses respectively and correspondingly cover the plurality of monochromatic chips; the utility model further provides a display module and a display screen. Compared with a mode of arranging a plurality of accommodating cavities and arranging a plurality of single-color chips in the plurality of accommodating cavities respectively, the single-color chips are arranged in the same accommodating cavity, so that the volume occupied by the cavity walls of the plurality of accommodating cavities originally is saved, and the manufacturing cost of the mold is reduced; the size of the support body is reduced to achieve miniaturization of the lamp bead structure, meanwhile, the multiple lenses are adopted to correspond to the multiple chips respectively, it is ensured that high brightness and light types of all monochromatic light are consistent, and therefore the finer display effect is achieved outdoors or semi-outdoors.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display light sources, and specifically, to a small-volume LED light source, a display module and a display screen. Background Art

[0002] An LED (Light Emitting Diode) is a semiconductor light-emitting device made based on the principle of electro-luminescence of a P-N junction. It has the advantages of high electro-optical conversion efficiency, long service life, environmental protection and energy conservation, small volume, etc., and is known as the green lighting source in the 21st century. When in application, an LED encapsulation glue is usually used to encapsulate a light-emitting diode and a driving chip in an LED bracket to form a lamp bead.

[0003] Nowadays, lamp beads with single-color light sources can no longer meet the needs of society. To solve the problem of single-color light emission of LED lamp beads, a common method is to directly set multiple light sources of different colors in the LED bracket. For example, an LED light source, a display module and a display screen disclosed in the authorized announcement number CN220456032U set multiple first accommodating cavities on the bracket, and then respectively and correspondingly set multiple single-color light sources in the multiple first accommodating cavities, so as to realize setting multiple light sources of different colors on one LED lamp bead, and by respectively controlling the on-off states of different-color light source chips, various colors can be mixed and formed. However, this leads to a relatively large volume of the lamp bead structure, which is not convenient for subsequent installation or integration into various small-size lighting products. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the present application provides a small-volume LED light source, a display module and a display screen.

[0005] A small-volume LED light source disclosed in the present application includes: a bracket main body, multiple single-color chips and a lens main body; only one accommodating cavity is opened on the surface of the bracket main body; the multiple single-color chips are spaced apart from each other and are all arranged in the accommodating cavity, so that the width of the cross-section of the bracket main body is 1.51 - 2.11 mm, and the width of the accommodating cavity is 0.85 - 1.45 mm; the lens main body includes a lens cover and multiple lenses respectively arranged on the lens cover, the lens cover covers the surface of the bracket main body, and the multiple lenses respectively cover the multiple single-color chips.

[0006] Preferably, the number of single-color chips is three, and the three single-color chips are arranged in a "pin" shape.

[0007] Preferably, the small-volume LED light source further includes a sealing body, and the sealing body is filled in the accommodating cavity and separates the multiple single-color chips from each other.

[0008] Preferably, the bottom of the accommodating cavity is a rounded square, wherein one monochrome chip is close to the middle of one side of the cavity bottom, and the other two monochrome chips are respectively close to the two ends of the other side of the cavity bottom.

[0009] Preferably, the small-volume LED light source also includes four pins respectively arranged on the bracket body, one end of the four pins are respectively located at the four corners of the bottom of the accommodating cavity, and one end of three of the pins are respectively electrically connected to the three monochrome chips, and the other ends of the four pins respectively pass through the bottom of the bracket body and extend to the outside.

[0010] Preferably, one end of the pin that is not electrically connected to the monochrome chip extends from the four corners of the cavity bottom to the middle of the cavity bottom.

[0011] Preferably, the plurality of single-color chips are arranged linearly.

[0012] Preferably, the lens is an irregular elliptical convex lens.

[0013] The present application also discloses a display module including a small-volume LED light source.

[0014] The present application also discloses a display screen, including a display module.

[0015] The beneficial effect of the present application is that by arranging multiple monochrome chips in the same accommodating cavity, compared with setting multiple accommodating cavities and arranging multiple monochrome chips in multiple accommodating cavities respectively, the volume occupied by the cavity walls of the original multiple accommodating cavities is eliminated, the spacing between the multiple monochrome chips is reduced, and the multiple monochrome chips can be more compactly arranged in the same accommodating cavity, thereby reducing the volume of the bracket body to achieve miniaturization of the lamp bead structure, which is convenient for subsequent installation or integration into various small-sized lighting products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a small-volume LED light source in an embodiment;

[0018] Figure 2 This is a schematic diagram of the structure of a small-volume LED light source after the lens body is disassembled in the embodiment;

[0019] Figure 3 This is a top view of the small-volume LED light source after the lens body is removed in the embodiment;

[0020] Figure 4 Schematic diagram of the structure of the monochrome chip and pins in the embodiment;

[0021] Figure 5 1 is a top view of a monochrome chip and pins in an embodiment.

[0022] Reference numerals:

[0023] 1. Bracket body; 11. Accommodating cavity; 2. Monochrome chip; 3. Lens body; 31. Lens cover; 32. Lens; 4. Pin; 41. Main body; 41. First connecting part; 42. Second connecting part. DETAILED DESCRIPTION

[0024] The following diagrams illustrate various embodiments of the present application. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present application. In other words, in some embodiments of the present application, these practical details are not essential. Furthermore, to simplify the drawings, some conventional structures and components are depicted in a simplified schematic manner.

[0025] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in this application, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit this application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] In order to further understand the application content, features and effects of this application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0028] Example 1:

[0029] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a small-volume LED light source in the embodiment. Figure 2This is a schematic diagram of the structure of a small-volume LED light source after the lens body is removed in an embodiment. The small-volume LED light source in this embodiment includes a bracket body 1, multiple monochrome chips 2, and a lens body 3. The surface of the bracket body 1 is provided with only one accommodating cavity 11. The multiple monochrome chips 2 are spaced apart from each other and are all arranged in the accommodating cavity 11, so that the width of the cross section of the bracket body 1 is 1.51-2.11 mm, and the width of the accommodating cavity 11 is 0.85-1.45 mm. The lens body 3 includes a lens cover 31 and multiple lenses 32 respectively arranged on the lens cover 31. The lens cover 31 is covered on the surface of the bracket body 1, and the multiple lenses 32 respectively cover the multiple monochrome chips 2.

[0030] By arranging multiple monochrome chips 2 in the same accommodating cavity 11, compared to setting multiple accommodating cavities 11 and arranging multiple monochrome chips 2 in multiple accommodating cavities 11 separately, the volume originally occupied by the cavity walls of the multiple accommodating cavities 11 is eliminated, the spacing between the multiple monochrome chips 2 is reduced, and the multiple monochrome chips 2 can be more compactly arranged in the same accommodating cavity 11, thereby reducing the volume of the bracket body 1 to achieve miniaturization of the lamp bead structure, facilitating subsequent installation or integration into various small-sized lighting products. Specifically, compared to the traditional "2828" specification LED light source (the bracket body 1 has a cross-sectional length of 2.8mm and a width of 2.8mm), this embodiment can reduce the size to a cross-sectional width of 1.51-2.11mm for the bracket body 1 and a width of 0.85-1.45mm for the accommodating cavity 11. It has a more compact design than traditional LED light sources, facilitating subsequent installation or integration into various small-sized lighting products.

[0031] Re-reference Figure 1 and Figure 2Preferably, there are three monochromatic chips 2, arranged in a "pin" shape. In specific applications, the monochromatic chips 2 in this embodiment are LED light-emitting chips, each emitting a red light source (R light source), a green light source (G light source), and a blue light source (B light source). The "pin" shape can be arranged in various configurations, such as RGB, BBR, RRG, BBG, and RRB. Of course, the monochromatic chips 2 can also be yellow light sources (Y light source), white light sources (Y light source), and other configurations. RGY, GBW, and other configurations can also be used, without limitation. Furthermore, the color of the lens 32 matches the color of the light emitted by the monochromatic chip 2 it covers, to enhance lighting efficiency. For example, the lens 32 covering the R light source can be a red lens, and so on. Specifically, the small-volume LED light source in this embodiment is of "1818" specification, meaning that the cross-sectional length and width of the bracket body 1 are 1.81 mm, respectively. This offers the advantage of miniaturization compared to a "2828" LED light source, where three accommodating cavities 11 correspond to three monochromatic chips 2. Of course, in other embodiments, the number of monochrome chips 2 can be multiple, and the multiple monochrome chips 2 can be arranged linearly within the accommodating cavity 11. It is understood that the linearly arranged monochrome chips 2 can form a narrow, elongated LED light source to adapt to lighting products with different shape requirements and broaden application scenarios. In other words, the cross-sectional length of the bracket body 1 of the linearly arranged LED light source is 2.11mm and the width is 1.51mm. In contrast, the specification of the linearly arranged LED light source is "2835" with three accommodating cavities 11 corresponding to three monochrome chips 2, which also has significant miniaturization advantages.

[0032] Reference Figure 3 , Figure 3Fig. 0 is a top view of the small-sized LED light source after the lens body is disassembled in the embodiment. Preferably, the bottom of the accommodating cavity 11 is a rounded rectangle, and one of the monochromatic chips 2 is close to the middle position of one side of the bottom, and the other two monochromatic chips 2 are respectively close to the two ends of the other side of the bottom. It can be understood that the three monochromatic chips 2 are arranged in a "pin" shape, and there is a gap between the three monochromatic chips 2 and the cavity wall of the accommodating cavity 11 to ensure that the light source is not blocked as much as possible. One of the monochromatic chips 2 is close to the middle position of one side of the bottom, and the other two monochromatic chips 2 are respectively close to the two ends of the other side of the bottom. That is to say, the three monochromatic chips 2 are all arranged on the bottom of the cavity. Two of the monochromatic chips 2 are respectively located at two corner positions, and the other monochromatic chip 2 is close to the middle position of the opposite cavity wall, so that the three monochromatic chips 2 can be separated as much as possible in the space of one accommodating cavity 11, reducing the mutual interference of the light sources between the three monochromatic chips 2. Furthermore, the distance between any two monochromatic chips 2 is equal. When the three monochromatic chips 2 emit light outward at the same time, the mixed light source is relatively uniform and accurate, which is convenient for realizing precise control of the light color. In this embodiment, for a clearer introduction, the area of the bottom of the accommodating cavity 11 is evenly divided into a nine-square grid for introduction, and the three monochromatic chips 2 are respectively located at the upper-middle, lower-left and lower-right positions of the bottom of the cavity.

[0033] Preferably, the small-sized LED light source further includes a sealing body, and the sealing body is filled in the accommodating cavity 11 and separates the multiple monochromatic chips 2 from each other. In specific applications, the sealing body is formed by pouring sealing glue. Since the three monochromatic chips 2 are all arranged in the same accommodating cavity 11, through the setting of the sealing body, the sealing body is filled in the accommodating cavity 11, which can separate the three monochromatic chips 2 from each other and reduce the mutual interference of the light sources between the three monochromatic chips 2. It can be understood that after the three monochromatic chips 2 are installed on the bracket body 1, the three lenses 32 are correspondingly covered above the three monochromatic chips 2, and then the lens cover 31 and the sealing body are formed by dispensing glue.

[0034] Refer to Figure 4 and Figure 5 , Figure 4 Fig. is a schematic structural diagram of the monochromatic chip and the pins in the embodiment, Figure 5This is a top view of the monochrome chip and pins in an embodiment. Preferably, the small-volume LED light source also includes four pins 4, each located on the bracket body 1. One end of each of the four pins 4 is located at the four corners of the bottom of the accommodating cavity 11. Three of the pins 4 have one end electrically connected to each of the three monochrome chips 2, and the other ends of the four pins 4 extend outward through the bottom of the bracket body 1. In specific applications, the pins 4 include a main body 41, a first connecting portion 42, and a second connecting portion 43. The first connecting portion 42 and the second connecting portion 43 are connected to the two ends of the main body 41. The first connecting portion 42 is one end of the pin 4, and the second connecting portion 43 is the other end of the pin 4. The four main bodies 41 are each inserted into the bracket body 1. The four second connecting portions 43 are located at the bottom of the bracket body 1. The four first connecting portions 42 are located at the four corners of the bottom of the accommodating cavity 11. Two of the first connecting portions 42 are electrically connected to the two monochrome chips 2 located in the corners, that is, the two first connecting portions 42 are located at the lower left and lower right positions of the cavity bottom, respectively. The third first connecting portion 42 occupies the upper center and upper right positions of the cavity bottom and is electrically connected to another monochrome chip 2. The ends of the pins 4 not electrically connected to the monochrome chip 2 extend from the four corners of the cavity bottom to the center of the cavity bottom, that is, the fourth first connecting portion 42 occupies the upper left, center left, and center positions of the cavity bottom. The fourth first connection part 42 extends from the four corners of the cavity bottom to the middle position of the cavity bottom, that is, extends to the center position of the three monochrome chips 2. This is closer to the three monochrome chips 2, making it easier for the neutral wires and other wires of the three monochrome chips 2 to be connected to the fourth first connection part 42. In this way, the positions of the four pins 4 are compactly and reasonably arranged, which can further reduce the overall volume of the bracket body 1.

[0035] Re-reference Figure 1 Preferably, the lens 32 is an irregular elliptical convex lens. In specific applications, the cross-sectional shape of the lens 32 is asymmetrical in a cross section perpendicular to the central axis of the monochrome chip 2. The cross-sectional shape of the lens 32 in this embodiment is a center-point asymmetrical structure, where the center point is the intersection of the central axis of the monochrome chip 2 and the cross section of the lens 32. Furthermore, along the direction of the central axis of the monochrome chip 2, the cross-sectional area of ​​the lens 32 above the surface of the bracket body 1 gradually decreases. Thus, with the central axis of the monochrome chip 2 as the line of symmetry, the lens 32 forms curved surfaces of different shapes and surface curvatures on opposite sides of the central axis of the monochrome chip 2. Light emitted by the monochrome chip 2 has different emission angles after passing through different curved surfaces, ultimately forming light that is asymmetrically distributed about the central axis of the monochrome chip 2. This makes the light from the monochrome chip 2 more concentrated on one side of the central axis. When the small-volume LED light source is placed perpendicular to the ground, the light from the small-volume LED light source can be tilted downward. When such a small-volume LED light source is assembled into a display screen, it is more suitable for people looking up from a low position.

[0036] Example 2:

[0037] The display module in this embodiment includes the small-volume LED light source and a mounting plate in the first embodiment, and a plurality of small-volume LED light sources are mounted on the mounting plate in a matrix form.

[0038] Example 3:

[0039] The display screen in this embodiment includes the display module and the housing in the second embodiment, and the multiple display modules are respectively arranged on the housing. When installing and applying, the housing is installed vertically on the ground, so that the small-volume LED light source can be installed vertically on the ground.

[0040] To sum up, by setting multiple monochrome chips 2 in the same accommodating cavity 11, compared with setting multiple accommodating cavities 11 and setting multiple monochrome chips 2 in multiple accommodating cavities 11 respectively, the volume occupied by the cavity walls of the multiple accommodating cavities 11 is eliminated, and the spacing between the multiple monochrome chips 2 is reduced, so that the multiple monochrome chips 2 can be more compactly set in the same accommodating cavity 11, thereby reducing the volume of the bracket body 1 to achieve miniaturization of the lamp bead structure, which is convenient for subsequent installation or integration into various small-sized lighting products.

[0041] The above is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A small-volume LED light source, characterized in that: Comprising: A bracket body (1) having only a receiving cavity (11) formed on its surface; A plurality of monochromatic chips (2), the plurality of monochromatic chips (2) being spaced apart from each other and disposed within the receiving cavity (11), such that the width of the cross-section of the bracket body (1) is 1.51 - 2.11 mm and the width of the receiving cavity (11) is 0.85 - 1.45 mm; and A lens body (3) comprising a lens cover (31) and a plurality of lenses (32) respectively provided on the lens cover (31), the lens cover (31) covering the surface of the bracket body (1), and the plurality of lenses (32) respectively covering the plurality of monochromatic chips (2).

2. The small-volume LED light source according to claim 1, characterized in that: The number of the monochromatic chips (2) is three, and the three monochromatic chips (2) are arranged in a "pin" shape.

3. The small-volume LED light source according to claim 1, characterized in that: It further includes a sealing body, the sealing body being filled in the receiving cavity (11) and spacing the plurality of monochromatic chips (2) from each other.

4. The small-volume LED light source according to claim 2, characterized in that: The bottom of the receiving cavity (11) is a rounded rectangle, and one of the monochromatic chips (2) is close to the middle position of one side of the cavity bottom, and the other two monochromatic chips (2) are respectively close to the two ends of the other side of the cavity bottom.

5. The small-volume LED light source according to claim 4, characterized in that: It further includes four pins (4) respectively provided on the bracket body (1), one ends of the four pins (4) are respectively located at the four corners of the bottom of the receiving cavity (11), and one ends of three of the pins (4) are respectively electrically connected to the three monochromatic chips (2), and the other ends of the four pins (4) respectively pass through the bottom of the bracket body (1) and extend to the outside.

6. The small-volume LED light source according to claim 5, characterized in that: One end of the pin (4) not electrically connected to the monochromatic chip (2) extends from the four corner positions of the cavity bottom to the middle position of the cavity bottom.

7. The small-volume LED light source according to claim 1, characterized in that: The plurality of monochromatic chips (2) are arranged linearly.

8. The small-volume LED light source according to claim 1, characterized in that: The lens (32) is an irregular elliptical convex lens.

9. A display module, characterized in that: Comprising the small-sized LED light source according to any one of claims 1 - 8.

10. A display screen, characterized in that: Comprising the display module according to claim 9.

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