Light source module and display device

Abstract

The light source module comprises a lamp panel (1) which comprises a substrate (11) and a plurality of light-emitting elements (12) which are arranged above the substrate (11) at intervals; the separating piece (12) is located above the substrate (12) and comprises a plurality of first fins (21), the first fins (21) are connected in a crossed mode to form a plurality of interval spaces (22) used for containing the light-emitting elements (12), the first fins (21) forming the interval spaces (22) are provided with inner walls (211), and the inner walls (211) close to the direction of the substrate (11) are shrunk inwards in the direction away from the interval spaces (22). The inner wall (211) is provided with a first distance (D1) away from the substrate (11) and a second distance (D2) adjacent to the substrate (11) along the Z-axis direction, and the projection relation between the second distance (D2) and the first distance (D1) on the XY plane is that the second distance (D2) is larger than the first distance (D1).

Description

Light source module and display device Technical Field

[0001] The present invention mainly relates to a light source module, and more particularly to a light source module having a partition forming a clearance space in the Z-axis direction, and a display device using the light source module. Background Art

[0002] The front matrix display light is composed of several high-brightness light-emitting diode units, and uses separators to achieve zoned light control, so that different patterns or texts can be arranged through different arrangements and combinations.

[0003] Conventional automotive front matrix display lights typically have between 350 and 400 LEDs per 14-inch display. However, with today's increasing demand for visual quality, the number of LEDs has increased significantly to achieve high contrast. This has led to a denser arrangement of LEDs, resulting in smaller spacing between them and tighter assembly tolerances. This has made it more likely for the separator to collide with the LEDs during assembly, potentially knocking them off.

[0004] In view of this, it is necessary to provide a light source module to solve the above problems.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide a light source module that can form a clearance space in the Z-axis direction to arrange light-emitting diodes, so that the partition and the light-emitting diodes can avoid each other in the XYZ three-axis directions, thereby achieving the effect of reducing the assembly precision requirements.

[0007] A second object of the present invention is to provide a display device having the above-mentioned light source module, which can be applied to a vehicle matrix display light structure and has a better brightness zoning effect.

[0008] To achieve the above-mentioned purpose, the present invention provides a light source module, comprising: a lamp board, comprising a substrate, and a plurality of light-emitting elements arranged at intervals above the substrate; and a partition, located above the substrate, and comprising a plurality of first ribs, the plurality of first ribs being cross-connected to form a plurality of partition spaces for accommodating the light-emitting elements, wherein the first ribs forming the partition spaces have an inner wall, and the portion of the inner wall closer to the substrate is retracted inward in a direction away from the partition space, and the inner wall has a first distance away from the substrate along the Z-axis direction, and a second distance closer to the substrate, and the projection relationship between the second distance and the first distance on the XY plane is that the second distance is greater than the first distance.

[0009] In some embodiments, in the partition space, the partition further has at least one second rib, which divides the partition space into a plurality of partition sub-spaces.

[0010] In some embodiments, the plurality of spaced subspaces are triangular in shape.

[0011] In some embodiments, the first rib and the second rib contact the substrate.

[0012] In some embodiments, the separator further includes a plurality of gaskets, which are respectively disposed at the bottom of the intersection of any two first ribs. A channel is formed between the gaskets and communicates with the separation space.

[0013] In some embodiments, the cushion has an extension portion extending toward the adjacent light-emitting element and below the spacing space.

[0014] In some embodiments, the spacer of the spacer contacts the substrate.

[0015] In some embodiments, the substrate is provided with a plurality of positioning grooves corresponding to the plurality of pads, and the plurality of pads are respectively engaged in the plurality of positioning grooves.

[0016] In some embodiments, the light emitting element overlaps with the first rib in the Z-axis direction.

[0017] In some embodiments, the light source module of the present invention may further include a diffusion plate disposed above the partition.

[0018] In some embodiments, the partition further has a positioning protrusion, and the diffuser plate is provided with a groove structure corresponding to the positioning protrusion, and the diffuser plate abuts against the positioning protrusion of the partition via the groove structure.

[0019] The present invention further provides a display device, comprising: the aforementioned light source module; and a panel disposed above the light source module.

[0020] The light source module and display device of the present invention have the following characteristics: the wider bottom spacing space in the partition can be designed to accommodate the multiple light-emitting elements, so that the multiple light-emitting elements will not collide with the partition, effectively achieving the mutual avoidance of the partition and the light-emitting elements in the XYZ three-axis directions, and achieving a better brightness zoning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a perspective view of a first embodiment of the present invention;

[0022] FIG2 is an exploded perspective view of the first embodiment of the present invention;

[0023] FIG3 is a partial enlarged top view of a separator in the first embodiment of the present invention, which is attached to a lamp panel;

[0024] FIG4 is a bottom view of a separator according to a first embodiment of the present invention;

[0025] FIG5 is a perspective view of FIG4 from another angle;

[0026] FIG6A is a top view of a separator according to a second embodiment of the present invention coupled to a lamp panel;

[0027] FIG6B is a side sectional view taken along line AA of FIG6A ;

[0028] FIG7 is a perspective view of a partition member attached to a lamp panel according to a second embodiment of the present invention;

[0029] FIG8 is a partial exploded perspective view of a second embodiment of the present invention;

[0030] FIG9 is a bottom view of a light-emitting element and a spacer according to a second embodiment of the present invention;

[0031] FIG10 is a bottom view of a light-emitting element and a spacer according to a third embodiment of the present invention. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. The accompanying drawings are primarily simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner. Therefore, only components related to the present invention are labeled in these drawings, and the components shown are not drawn based on the number, shape, size ratio, etc. of the components in actual implementation. The specifications and dimensions of the components in actual implementation are actually a selective design, and the component layout may be more complex.

[0033] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention may be implemented. Directional terms mentioned in the present invention, such as "upper," "lower," "front," and "rear," are only used with reference to the directions in the accompanying drawings. Therefore, the directional terms used are intended to illustrate and understand the present application, not to limit the present application. In addition, in the specification, unless expressly stated to the contrary, the word "comprising" will be understood to mean including the stated elements but not excluding any other elements.

[0034] Please refer to Figures 1 and 2, which are respectively a three-dimensional assembly diagram and a three-dimensional exploded diagram of the first embodiment of the light source module of the present invention, comprising: a lamp board 1 and a partition 2, wherein the lamp board 1 includes a substrate 11 and a plurality of light-emitting elements 12 arranged at intervals and arranged above the substrate 11. In this embodiment, the light-emitting element 12 is a light-emitting diode.

[0035] Referring to Figures 2, 3, 4, and 5, the separator 2 is located above the substrate 11 and includes a plurality of first ribs 21 that cross-connect to form a plurality of separation spaces 22. The first ribs 21 can contact the substrate 11 and accommodate the light-emitting elements 12. The first ribs 21 forming the separation spaces 22 have an inner wall 211. The portion of the inner wall 211 closer to the substrate 11 tapers inward away from the separation spaces 22, creating a stepped design that is narrower at the top and wider at the bottom. Thereby, the inner wall 211 has a first distance D1 farther away from the substrate 11 along the Z-axis direction, and has a second distance D2 closer to the substrate 11. The projection relationship between the second distance D2 and the first distance D1 on the XY plane is that the second distance D2 is greater than the first distance D1, so that a avoidance space is formed in the Z-axis direction to set the light-emitting element 12, so as to avoid the first rib 21 of the partition 2 from colliding with the light-emitting element 12 in the Z-axis direction, and can overcome the arrangement design of the light-emitting elements with more dense density; furthermore, by partitioning the entire light-emitting surface with the spacing space 22 formed by the several first ribs 21, a brighter zoning effect can be achieved, and the assembly tolerance requirements of the partition 2 and the light-emitting element 12 in the XYZ axis direction can be met.

[0036] In the present invention, by designing the partition 2, when the size of the substrate 11 is 14 inches, the number of the plurality of light-emitting elements 12 disposed above the substrate 11 can reach nearly 1,800, thereby achieving a denser arrangement design of the light-emitting elements, thereby improving the overall resolution of the light source module. The number of light-emitting elements 12 that can be disposed above the substrate 11 is not a limitation of the present invention.

[0037] Referring to Figures 4 and 5 , the partition 2 further comprises at least one second rib 23 within the space 22, which contacts the substrate 11 and divides the space 22 into a plurality of subspaces 22a. For example, the subspaces 22a may be triangular, rectangular, or fan-shaped. When the subspaces 22a are triangular, they can eliminate jagged edges of text or patterns produced by the light-emitting element 12, resulting in higher precision and enhancing the sophistication of the image produced by the light source module.

[0038] Referring to Figures 4 and 5 , an extension R is formed at the corner between the first rib 21 and the second rib 23, closer to the substrate 11. This extension R extends toward the adjacent light-emitting element 12 and below the separation space 22. This extension R not only reflects light reflected by the diffuser back again, improving the uniformity of the light-emitting surface, but also increases the structural strength of the first and second ribs 21, 23, making the entire separator 2 less susceptible to deformation under pressure. In other embodiments, the extension R between the first and second ribs 21, 23 may be omitted.

[0039] 6A, 6B, and 7, which are respectively a top view, a side cross-sectional view, and a perspective view of a second embodiment of the light source module of the present invention. The separator 2 further includes a plurality of pads 24, each disposed at the bottom of the intersection of any two first ribs 21. In other words, in this embodiment, the pads 24 can contact the substrate 11, thereby maintaining a spacing distance (i.e., the thickness of the pads 24) between the first ribs 21 and the substrate 11.

[0040] In this embodiment, the pad 24 may or may not extend beyond the bottom edge of the intersection in the XY axis directions. In other words, when the pad 24 does not extend beyond the bottom edge of the intersection in the XY axis directions, the available space can be further increased, so that the separator 2 is less likely to collide with the light-emitting element 12 in the XY axis directions. For example, the pad 24 may be a cylinder with a diameter no greater than the width of the first rib 21.

[0041] On the other hand, the pad 24 can also extend beyond the bottom edge of the intersection in the X and Y axis directions. In other words, the pad 24 has an extension 241 that extends beyond the bottom edge of the intersection. This extension 241 corresponds to the corner between the first rib 21 and the second rib 23, extending toward the adjacent light-emitting element 12 and below the space 22. This extension 241 can thus reflect light reflected by the diffuser back again, improving the uniformity of the light-emitting surface.

[0042] A channel 25 is formed between the plurality of pads 24, communicating with the partition space 22 and used to accommodate the light-emitting element 12. Referring to FIG9 , the relative relationship between the partition 2 and the light-emitting element 12 is presented from an upward perspective. By accommodating the light-emitting element 12 through the channel 25 formed by the pad 24 along the Z-axis direction, the first rib 21 of the partition 2 can be further prevented from colliding with the light-emitting element 12 in the Z-axis direction. Furthermore, the hollowing out of the channel 25 in the Z-axis direction can further overcome the need for a denser arrangement of light-emitting elements and further meet the assembly tolerance requirements of the partition 2 and the light-emitting element 12 in the XYZ-axis directions. In one embodiment, neither the first rib 21 nor the second rib 23 contacts the substrate 11, and along the Z-axis direction, both the first rib 21 and the second rib 23 are located above the light-emitting element 12. Thus, the light-emitting element 12 can utilize the channel 25 as a tolerance margin for overall assembly.

[0043] It is worth mentioning that the first ribs 21, second ribs 23, and cushion 24 of the partition 2 can be integrally formed. The extension 241 of the cushion 24 has the same reflectivity as the first and second ribs 21, 23. This design helps receive light that has not yet escaped the diffuser, reflecting it upward upon impact with the extension 241. This enhances light reflection within the partition 22 and enhances brightness in the corners of the partition 22.

[0044] 8 , the base plate 11 is further provided with a plurality of positioning grooves 13 corresponding to the plurality of pads 24, so that the plurality of pads 24 can be respectively engaged in the plurality of positioning grooves 13. This can improve the positioning and coupling effect of the separator 2 and the light board 1, thereby preventing collision with the light-emitting element 12 in the XY axis direction.

[0045] Please refer to Figure 9, which is a bottom view of the light-emitting elements and separators of the second embodiment of the light source module of the present invention. In this embodiment, the light-emitting element 12 does not overlap with the first rib 21 in the Z-axis direction, so that the light-emitting element 12 located in the separation space 22 is aligned with the separation subspace 22a. As a result, the text or pattern produced by the light source module of the present invention can be precisely controlled to align the light-emitting element 12 located in each separation subspace 22a, thereby improving the image quality presented by the light source module.

[0046] Please refer to Figure 10, which is a bottom view of the light-emitting element and partition of the third embodiment of the light source module of the present invention. Compared with the second embodiment described above, the difference is that in this embodiment, the light-emitting element 12 overlaps the first rib 21 in the Z-axis direction, so that the light-emitting element 12 spans the first rib 21 in the X-axis direction or the Y-axis direction. As a result, the light source module of the present invention can be used in general displays, maintain the effect of each brightness zone, and achieve assembly accuracy requirements.

[0047] Please refer to Figures 1 and 2. The light source module of the present invention may also include a diffusion plate 3, which is arranged above the partition 2 and is used to improve the uniformity of the light source of the several light-emitting elements 12. In detail, the partition 2 also has a positioning protrusion 26, and the diffusion plate 3 is provided with a groove structure (not shown) corresponding to the positioning protrusion 26. Thereby, the diffusion plate 3 abuts against the positioning protrusion 26 of the partition 2 with the groove structure, so that a gap is formed between the bottom surface of the diffusion plate 3 and the top surface of the partition 2, which has the effect of reducing the friction between the diffusion plate 3 and the partition 2. In one embodiment, the positioning protrusion 26 is located in the central area of ​​the partition 2 and can serve as a reference point for thermal expansion and contraction of the diffusion plate 3.

[0048] When the light source module of the present invention is assembled into a display device, it includes: the aforementioned light source module and a panel, which is disposed above the light source module. In this embodiment, the panel is a smart glass.

[0049] As mentioned above, the light source module and display device of the present invention can be used to accommodate the multiple light-emitting elements by designing a wider bottom spacing space in the partition, so that the multiple light-emitting elements will not collide with the partition, effectively achieving the mutual avoidance of the partition and the light-emitting elements in the XYZ three-axis directions, and achieving a better brightness zoning effect.

[0050] The embodiments disclosed above are merely illustrative of the principles, features, and effects of the present invention and are not intended to limit the scope of the present invention. Any skilled artisan may modify or alter the embodiments described above without departing from the spirit and scope of the present invention. Any equivalent variations or modifications resulting from the present invention are intended to be covered by the appended claims.

[0051] [Description of Symbols] [Present invention] 1: lamp board 11: substrate 12: light-emitting element 13: positioning groove 2: partition 21: first rib 211: inner wall 22: partition space 22a: partition subspace 23: second rib 24: pad 241: extension portion 25: channel 26: positioning protrusion 3: diffusion plate D1: first distance D2: second distance R: extension portion.

Claims

1. A light source module, comprising: A light board, comprising a substrate, and a plurality of light emitting elements arranged at intervals and disposed above the substrate; and The separator is located above the substrate and includes a plurality of first ribs, which are cross-connected to form a plurality of spacing spaces for accommodating the light-emitting element, wherein: The first rib forming the spacing space has an inner wall, and the portion of the inner wall closer to the substrate is retracted inward in the direction away from the spacing space. The inner wall has a first distance away from the substrate along the Z-axis direction, and a second distance closer to the substrate. The projection relationship between the second distance and the first distance on the XY plane is that the second distance is greater than the first distance.

2. The light source module according to claim 1, wherein: In the partition space, the partition also has at least one second rib, which divides the partition space into a plurality of partition sub-spaces.

3. The light source module according to claim 2, wherein: The plurality of interval subspaces are in a triangular shape.

4. The light source module according to claim 2, wherein: The first rib and the second rib contact the substrate.

5. The light source module according to claim 1, wherein: The separator also includes a plurality of cushions, which are respectively arranged at the bottom of the intersection of any two first ribs. A channel is formed between the plurality of cushions and is connected to the interval space.

6. The light source module according to claim 5, wherein: The cushion has an extension portion extending below the spacing space toward the adjacent light emitting element.

7. The light source module according to claim 5, wherein: The pad of the spacer contacts the substrate.

8. The light source module according to claim 5, wherein: The base plate is provided with a plurality of positioning grooves corresponding to the plurality of pads, and the plurality of pads are respectively engaged in the plurality of positioning grooves.

9. The light source module according to claim 1, wherein: The light emitting element overlaps with the first fin in the Z-axis direction.

10. The light source module according to claim 2, wherein: The invention also comprises a diffusion plate which is arranged above the partition.

11. The light source module according to claim 10, wherein: The separator also has a positioning protrusion, and the diffusion plate is provided with a groove structure corresponding to the positioning protrusion. The diffusion plate abuts against the positioning protrusion of the separator through the groove structure.

12. A display device, comprising: The light source module according to any one of claims 1 to 11; and The panel is arranged above the light source module.

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