Optical support post structure and display device

Abstract

The application provides an optical support column structure, which comprises a silica gel support body integrally formed by two-color injection molding and a hardware support body embedded and assembled at the bottom of the silica gel support body; the silica gel support body comprises a transparent silica gel part for light transmission and a white silica gel part for light reflection. The mechanical reliability, production automation degree, optical performance and functional integration degree are significantly improved and optimized.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to an optical support column structure and display device. Background Technology

[0002] Chinese patent application publication number CN112213886A discloses a support component and its preparation method, a lamp panel assembly, a backlight module, and its assembly method. The support component includes a substrate and a supporting colloid, disposed on one side of the substrate. Because the supporting colloid can be processed to a sufficiently small size and is easy to process, it meets the requirements for supporting the diffuser plate when the backlight module has a small OD size. By supporting the diffuser plate with the supporting colloid, the processing of the support component under small OD is simplified. The shortcomings of this prior art are as follows:

[0003] 1. The support component mainly consists of a "substrate (such as a circuit board) + supporting adhesive (silicone / resin)". The adhesive is directly attached to the substrate, and its bonding strength mainly depends on the adhesive's own tackiness. Under long-term pressure or thermal stress, there is a risk that the adhesive may peel off from the substrate.

[0004] 2. The preparation of the support component requires first treating the substrate (such as applying white ink), and then performing multiple processes such as dispensing, curing, and cutting.

[0005] 3. The solution mentions that the supporting colloid can be a transparent material to allow light to pass through. However, its substrate (especially the circuit board) may absorb light. If light enters the bottom of the support from the side, uneven absorption or scattering may cause local dark spots.

[0006] 4. The main function of the support component is to provide mechanical support. Its optical functions (such as reflection) rely on additional white ink printing on the substrate, which is a separate step and functional layer.

[0007] Given that the existing technology has technical defects that have hindered the development of the industry's technology, there is an urgent need to solve these problems. Summary of the Invention

[0008] This invention provides an optical support column structure that achieves significant improvements and optimizations in mechanical reliability, production automation, optical performance, and functional integration.

[0009] The present invention provides an optical support column structure, comprising a silicone support body integrally molded by two-color injection molding and a hardware bracket body fitted and assembled at the bottom of the silicone support body; the silicone support body includes a transparent silicone part for light transmission and a white silicone part for light reflection.

[0010] Preferably, the transparent silicone portion constitutes the top optical path area of ​​the silicone support body, and its height accounts for more than 45% of the total height of the silicone support body; the white silicone portion constitutes the bottom reflective area of ​​the silicone support body, and its height accounts for less than 45% of the total height of the silicone support body.

[0011] Preferably, the cross-sectional shape of the transparent silicone portion is the same as or different from the cross-sectional shape of the white silicone portion;

[0012] When the cross-sectional shapes are the same, the silicone support body is generally columnar.

[0013] When the cross-sectional shapes are different, at least one of the transparent silicone portion and the white silicone portion has a conical, rectangular, or polygonal cross-sectional shape.

[0014] Preferably, the transparent silicone part has a conical structure, and its cross-sectional diameter gradually decreases from the connection point with the white silicone part towards the top surface.

[0015] Preferably, all four sides of the hardware bracket body extend upward to form reinforcing connecting portions, and each reinforcing connecting portion has a circular punched hole. The height of each reinforcing connecting portion is less than the height of the white silicone portion.

[0016] Preferably, the bottom of the white silicone part has a fitting groove for receiving the hardware bracket body, so that the lower surface of the white silicone part is coplanar with the lower surface of the hardware bracket body; the white silicone part is integrally formed on the hardware bracket body by an insertion injection molding process; wherein, the white silicone part has a fitting cavity formed inside that matches the shape of the reinforcing connection part, so that the hardware bracket body is three-dimensionally wrapped by the silicone material of the white silicone part and forms a mechanical interlock.

[0017] Preferably, a clearance hole is provided in the middle of the hardware bracket body, and a boss is formed at the bottom of the white silicone part at the position corresponding to the clearance hole, which is inserted into the clearance hole.

[0018] Preferably, on each side of the hardware bracket body, an extended card block is formed on both sides of the reinforcing connection portion. On the white silicone portion, a slot for inserting the extended card block is formed on the outer edge of the fitting groove corresponding to the position of each extended card block.

[0019] Preferably, the bottom of the white silicone part is coaxial with the boss, and an inner concave hole is formed therein.

[0020] Preferably, anti-deformation grooves A are formed on each side edge of the hardware bracket body and on both opposite sides of the root of the reinforcing connection.

[0021] Preferably, each side edge of the hardware bracket body and on opposite sides of the root of the extended card block are formed with anti-deformation grooves B.

[0022] Preferably, the free end of the reinforcing connection is configured as a "T" shape.

[0023] A display device, comprising:

[0024] Circuit board;

[0025] Multiple light-emitting elements are mounted on the circuit board;

[0026] An optical element is disposed above the circuit board; and

[0027] A support structure is disposed on the upper surface of the circuit board and located between the plurality of light-emitting elements, for supporting the optical sheet;

[0028] The supporting structure is the optical support column structure described above;

[0029] The metal bracket of the optical support column structure serves as a lead frame and is fixed to the upper surface of the circuit board by welding.

[0030] The white silicone part of the optical support column structure serves as a support base, and its bottom surface is connected to the circuit board through the hardware bracket body.

[0031] The transparent silicone portion of the optical support pillar structure serves as a transparent support pillar extending from the upper surface of the white silicone portion. Its top surface contacts the lower surface of the optical sheet to provide support, and the transparent silicone portion covers at least one light-emitting side of the light-emitting element.

[0032] Preferably, the overall height of the optical support column structure is greater than or equal to the height of the light-emitting surface of the light-emitting element; and the optical support column structure is disposed outside the backlight range of the light-emitting element to avoid obstructing the light emission path of the light-emitting element.

[0033] The beneficial effects of this invention are as follows:

[0034] The support consists of a silicone support body formed by dual-color injection molding and a metal bracket fitted at the bottom of the silicone support body. The silicone support body includes a transparent silicone part for light transmission and a white silicone part for light reflection, greatly enhancing the overall structural strength and peel resistance of the support. The metal bracket provides strong mechanical locking force, enabling the support to withstand greater PCB peeling forces, thus making it more reliable and durable during assembly and use, avoiding failure problems caused by adhesive detachment. It achieves high compatibility with mainstream surface mount technology (SMT). The support can be automatically mounted at high speed and with high precision using a pick-and-place machine, just like other electronic components, significantly improving the overall assembly efficiency and consistency of the light board assembly, and reducing labor costs and production complexity. The white lower part effectively provides secondary reflection, reducing light loss. Simultaneously, the transparent upper part ensures smooth light transmission, avoiding obvious shadows or dark spots directly above the support point. This design actively manages the light path, further improving the brightness and uniformity of the backlight module.

[0035] This invention achieves a high degree of integration and functional unification. While meeting the requirement of extremely small OD (optical distance), a single component solves multiple problems related to mechanical fixation, optical control, and electrical connection, simplifying the bill of materials (BOM) and supply chain management, and potentially enabling a more compact spatial layout in structural design. Attached Figure Description

[0036] Figure 1 This is a perspective view of this embodiment.

[0037] Figure 2 This is a cross-sectional view of this embodiment.

[0038] Figure 3 A three-dimensional perspective view of the white silicone part (showing the fitting cavity).

[0039] Figure 4 This is an exploded view (top view) of this embodiment.

[0040] Figure 5 This is an exploded view (view from below) of this embodiment.

[0041] Figure 6 This is a brightness effect diagram and corresponding data diagram of this embodiment.

[0042] Figure 7 This is an optical simulation view of this embodiment.

[0043] Figure 8 This is a three-dimensional view of a display device.

[0044] The attached figures are labeled as follows: transparent silicone part 10, white silicone part 11, hardware bracket body 12, reinforcing connection part 13, clearance hole 14, boss 15, fitting groove 16, fitting cavity 17, silicone support body 18, circular punch 19, outer extension block 25, slot 24, concave hole 26, liquid crystal panel 27, optical sheet 28, circuit board 29, light-emitting element 30, anti-deformation groove A31, and anti-deformation groove B32. Detailed Implementation

[0045] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Please refer to Figure 1-7 As shown, this embodiment of the invention provides an optical support column structure, including a silicone support body 18 integrally molded by two-color injection molding and a metal bracket body 12 fitted and assembled at the bottom of the silicone support body 18; the silicone support body 18 includes a transparent silicone portion 10 for light transmission and a white silicone portion 11 for light reflection. The transparent silicone portion 10 constitutes the top optical path region of the silicone support body 18, and its height accounts for more than 45% of the total height of the silicone support body 18; the white silicone portion 11 constitutes the bottom reflective region of the silicone support body 18, and its height accounts for less than 45% of the total height of the silicone support body 18.

[0048] The cross-sectional shape of the transparent silicone part 10 may be the same as or different from the cross-sectional shape of the white silicone part 11. When the cross-sectional shapes are the same, the silicone support body 18 is generally columnar. When the cross-sectional shapes are different, at least one of the transparent silicone part 10 and the white silicone part 11 has a conical, rectangular, or polygonal cross-sectional shape. When the transparent silicone part 10 has a conical structure, its cross-sectional diameter gradually decreases from the connection point with the white silicone part 11 towards the top surface. In this embodiment, the cross-section of the transparent silicone part 10 is set to conical, and the cross-section of the white silicone part 11 is set to rectangular. Its edge portion can be processed into a rounded shape with a specific curvature.

[0049] This embodiment improves backlight uniformity primarily in the following two stages by providing a transparent silicone portion:

[0050] Light diffusion stage: The highly directional beam of light emitted by the LED light source first enters the transparent silicone part. Due to the light scattering ability of the silicone material, the light will be scattered multiple times when passing through the part, and its propagation direction will be randomized, thus expanding the beam angle.

[0051] Interface coupling stage: The diffused light reaches the contact interface between the transparent silicone part and the light-incident side of the light guide plate. Due to the tight fit and good refractive index matching, most of the light can be efficiently coupled into the light guide plate. At this point, the light entering the light guide plate is no longer the original point-like intense light, but a light-emitting surface with a more uniform brightness distribution. This fundamentally avoids the formation of obvious bright bands or dark areas in the area of ​​the light guide plate near the light source, allowing the dot matrix design inside the light guide plate to function more effectively, thereby obtaining highly uniform backlighting throughout the entire display area.

[0052] In this embodiment, a silicone support body is integrally molded using dual-color injection molding, and a metal bracket is fitted and assembled at the bottom of the silicone support body. The silicone support body includes a transparent silicone part for light transmission and a white silicone part for light reflection, greatly enhancing the overall structural strength and peel resistance of the support component. The metal bracket provides strong mechanical locking force, enabling the support component to withstand greater PCB peeling force, thus making it more reliable and durable during assembly and use, avoiding failure problems caused by adhesive detachment. It achieves high compatibility with mainstream surface mount technology (SMT). The support component can be automatically mounted at high speed and with high precision using a pick-and-place machine, just like other electronic components, significantly improving the overall assembly efficiency and consistency of the light board assembly, and reducing labor costs and production complexity. The white lower part effectively provides secondary reflection, reducing light loss. Simultaneously, the transparent upper part ensures smooth light transmission, avoiding the formation of obvious shadows or dark spots directly above the support point. This design actively manages the light path, further improving the brightness and uniformity of the backlight module. This embodiment achieves high integration and functional unification. While meeting the requirement of extremely small OD (optical distance), a single component solves multiple problems related to mechanical fixation, optical control, and electrical connection, simplifying the bill of materials (BOM) and supply chain management, and potentially enabling a more compact spatial layout in structural design.

[0053] The four sides of the hardware support body 12 extend upward to form reinforcing connecting portions 13, each with a circular punch 19. The height of each reinforcing connecting portion 13 is less than the height of the white silicone portion 11. The reinforcing connecting portions 13 extending upward from the four sides form a three-dimensional reinforcing rib structure, significantly improving the overall rigidity and resistance to bending and torsion of the hardware support body 12, preventing plastic deformation during assembly or use. When the white silicone portion 11 covers the hardware support body 12 through injection molding, the molten silicone material flows into and fills the circular punches 19 on the reinforcing connecting portions 13. After the silicone cools and solidifies, "silicone pillars" are formed in the holes, thereby creating a mechanical interlocking effect with the hardware in the vertical direction. This design greatly increases the contact area and bonding strength between the silicone and the metal, effectively preventing peeling or relative sliding between the two due to thermal expansion and contraction or external forces during use, ensuring the structural integrity and long-term reliability of the composite support column.

[0054] In a preferred embodiment, the free end of the reinforcing connector 13 is configured as a "T" shape, thereby significantly enhancing the engagement or riveting strength between this part and the target connector. The T-shaped end forms a transverse locking surface, which provides a larger contact area and a better lever arm when subjected to tensile or thrust forces along the axial direction of the reinforcing connector, effectively resisting pull-out or loosening. Simultaneously, this design facilitates rapid positioning and alignment during assembly, improving assembly convenience and overall structural stability after connection, thereby further ensuring the secure installation and long-term reliable operation of this optical support column structure in the display device.

[0055] The bottom of the white silicone part 11 has a fitting groove 16 for accommodating the metal bracket body 12, making the lower surface of the white silicone part 11 coplanar with the lower surface of the metal bracket body 12. The white silicone part 11 is integrally molded onto the metal bracket body 12 using an insert injection molding process. The white silicone part 11 has a fitting cavity 17 formed inside, which matches the shape of the reinforcing connection part 13, allowing the metal bracket body 12 to be three-dimensionally encased by the silicone material of the white silicone part 11 and forming a mechanical interlock. The fitting groove 16 ensures that the metal bracket body 12 is precisely encased and accommodated, and the "coplanar lower surface" design ensures that the bottom of the support column is a flat reference surface, facilitating flat and stable installation in the backlight module and avoiding warping or stress due to height differences. The fitting cavity 17 is provided so that the silicone material can completely encapsulate the three-dimensional structure of the metal bracket body 12 during injection molding. This creates a large-area "mechanical interlock" interface, which greatly increases the bonding force between the two, prevents detachment or relative displacement during use, and ensures that the support column functions as a whole component.

[0056] A clearance hole 14 is provided in the middle of the hardware bracket body 12. A boss 15 is formed at the bottom of the white silicone part 11 at the position corresponding to the clearance hole 14, which is inserted into the clearance hole 14. The boss 15 inserted into the clearance hole 14 constitutes a vertical positioning structure. On the one hand, it ensures that the silicone support body 18 and the hardware bracket body 12 will not be misaligned in the planar direction (X-axis and Y-axis), making their relative positions unique and correct, which is crucial for functions that require strict alignment. On the other hand, it can effectively prevent the white silicone part from rotating or shifting laterally relative to the hardware bracket body. In addition, it further increases the bonding area and improves the bonding force. The cooperation between the boss and the clearance hole increases the contact and engagement area between the silicone and the hardware bracket body 12 in the vertical direction, further improving the integration and bonding reliability of the two.

[0057] On each side of the hardware bracket body 12, on both sides of the reinforcing connection part 13, there are extended locking blocks 25. On the white silicone part 11, on the outer edge of the fitting groove 16 corresponding to the position of each extended locking block 25, there are slots 24 for inserting the extended locking blocks 25. The cooperation between the extended locking blocks 25 and the slots 24 forms a lateral snap-locking structure. This design can firmly "lock" the silicone part to the hardware bracket from the side, forming a multi-dimensional fixation with the aforementioned fitting cavity 17, boss 15, and other structures, jointly preventing the silicone part from separating from the hardware when subjected to lateral force. In addition, this structural arrangement can disperse the bonding stress and improve long-term reliability. By providing additional fixing points at the extended locking blocks, the stress at the interface between the silicone and the hardware can be more evenly distributed, avoiding stress concentration that could lead to local delamination or failure, thereby improving the reliability of the product under long-term use and environmental changes (such as thermal cycling).

[0058] A recessed hole 26 is formed at the bottom of the white silicone part 11, coaxial with the boss 15. This recessed hole 26 acts as a solder accumulation area during reflow soldering or wave soldering of the hardware bracket and the circuit board. When the solder melts under heat, its surface tension and capillary action drive excess solder to flow into and fill the recessed hole 26. This active flow-guiding design effectively captures and accommodates excess solder, significantly reducing the risk of solder leakage to the edges or peripheral areas of the hardware bracket. This not only avoids electrical short circuits caused by solder bridging but also prevents solder contamination of surrounding optical or structural components, while ensuring the fullness and reliability of the solder joint itself, improving the overall soldering process window and product yield.

[0059] Anti-deformation grooves A31 are formed on each side edge of the hardware bracket body 12 and on opposite sides of the root of the reinforcing connection 13. Anti-deformation grooves B32 are formed on each side edge of the hardware bracket body 12 and on opposite sides of the root of the extended clamping block 25. The core function of these anti-deformation grooves (A31, B32) is to release and disperse the internal stress generated during the stamping and subsequent precision cutting (such as laser cutting) of the hardware bracket body. In the root areas of the reinforcing connection 13 and the extended clamping block 25, where there are abrupt structural changes and cross-sectional variations, stress concentration is most likely to occur during processing, leading to microcracks or fatigue deformation during subsequent use. By pre-setting anti-deformation grooves on both sides of their roots, it is equivalent to introducing flexible stress relief grooves in advance along the potential path of stress concentration. During the processing, stress will preferentially concentrate and be released in these grooves, thereby effectively avoiding the adverse transmission of stress to the main body of the bracket or key functional areas. This ensures that the metal bracket body 12 has high dimensional accuracy and good flatness after molding, without warping or hidden damage, providing a reliable metal skeleton foundation for subsequent precision bonding with silicone.

[0060] See Figure 8 As shown, this embodiment also provides a display device, including: a circuit board 29; a plurality of light-emitting elements 30 mounted on the circuit board 29; an optical sheet 28 disposed above the circuit board 29; a liquid crystal panel 27 disposed above the optical sheet 28; and a support structure disposed on the upper surface of the circuit board 29 and located between the plurality of light-emitting elements 30 for supporting the optical sheet 28; wherein the support structure is the optical support column structure 18 in the above embodiment; wherein the metal bracket body 12 of the optical support column structure serves as a lead frame and is fixed to the upper surface of the circuit board 29 by welding; wherein the white silicone part 11 of the optical support column structure serves as a support base, and its bottom surface is combined with the circuit board 29 through the metal bracket body 12; wherein the transparent silicone part 10 of the optical support column structure 18 serves as a transparent support column extending from the upper surface of the white silicone part 11, and its top surface contacts the lower surface of the optical sheet 28 to provide support, and the transparent silicone part 10 covers the light-emitting side of at least one of the light-emitting elements 30. The optical sheet 28 in this embodiment may include one or more combinations of a diffuser plate, a diffuser sheet, a prism sheet, and a composite prism sheet.

[0061] In a preferred embodiment, the support structure can be arranged among multiple rows of light-emitting elements 30, and their arrangement can be regular. However, the specific location of the support structure can also be randomly distributed.

[0062] In a preferred embodiment, the overall height of the optical support column structure 18 is greater than or equal to the height of the light-emitting surface of the light-emitting element 30; and the optical support column structure 18 is disposed outside the backlight range of the light-emitting element 30. In other words, the optical support column structure 18 is precisely positioned in the non-light-emitting area (such as the black matrix or gap) between the LED light-emitting areas, thereby completely avoiding the light emission path of the light-emitting element 30, fundamentally eliminating the dark area caused by the support structure blocking the light, and significantly improving the uniformity of the display brightness.

[0063] The height h of the white silicone portion 11 can be designed to a size that does not affect the light emission range of the light-emitting element 30. For example, when the light-emitting element 30 is an LED device and the light emission angle is θ, the height h of the white silicone portion 11 can satisfy the following inequality:

[0064]

[0065] Wherein, L represents the horizontal distance from the light-emitting element 30 to the white silicone portion 11. According to this structural design, light emitted from the light-emitting element 30 will not directly illuminate the side of the white silicone portion 11.

[0066] The embodiments described above illustrate only one implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An optical support column structure, characterized in that: It includes a silicone support body (18) integrally molded by two-color injection molding and a hardware bracket body (12) fitted and assembled at the bottom of the silicone support body (18); the silicone support body (18) includes a transparent silicone part (10) for light transmission and a white silicone part (11) for light reflection.

2. The optical support column structure according to claim 1, characterized in that, The transparent silicone part (10) constitutes the top optical path area of ​​the silicone support body (18), and its height accounts for more than 45% of the total height of the silicone support body (18); the white silicone part (11) constitutes the bottom reflective area of ​​the silicone support body (18), and its height accounts for less than 45% of the total height of the silicone support body (18).

3. The optical support column structure according to claim 2, characterized in that, The cross-sectional shape of the transparent silicone part (10) may be the same as or different from the cross-sectional shape of the white silicone part (11); When the cross-sectional shapes are the same, the silicone support body (18) is columnar in shape. When the cross-sectional shapes are different, at least one of the transparent silicone part (10) and the white silicone part (11) has a conical, rectangular or polygonal cross-sectional shape.

4. The optical support column structure according to claim 3, characterized in that, The transparent silicone part (10) has a conical structure, and its cross-sectional diameter gradually decreases from the connection with the white silicone part (11) towards the top surface.

5. An optical support column structure according to any one of claims 1-4, characterized in that, The four sides of the hardware bracket body (12) extend upward to form a reinforcing connection part (13), and each reinforcing connection part (13) has a circular punch (19); the height of each reinforcing connection part (13) is less than the height of the white silicone part (11).

6. The optical support column structure according to claim 5, characterized in that, The bottom of the white silicone part (11) has a fitting groove (16) for receiving the hardware bracket body (12), so that the lower surface of the white silicone part (11) is coplanar with the lower surface of the hardware bracket body (12); the white silicone part (11) is integrally formed on the hardware bracket body (12) by an insertion injection molding process; wherein, the white silicone part (11) has a fitting cavity (17) inside that is adapted to the shape of the reinforcing connection part (13), so that the hardware bracket body (12) is three-dimensionally wrapped by the silicone material of the white silicone part (11) and forms a mechanical interlock.

7. The optical support column structure according to claim 5, characterized in that, The hardware bracket body (12) has a relief hole (14) in the middle, and the bottom of the white silicone part (11) has a boss (15) that is inserted into the relief hole (14) at the position corresponding to the relief hole (14).

8. The optical support column structure according to claim 6, characterized in that, On each side of the hardware bracket body (12), an extension block (25) is formed on both sides of the reinforcing connection part (13). On the white silicone part (11), a slot (24) is provided on the outer edge of the fitting groove (16) corresponding to the position of each extension block (25) for insertion of the extension block (25).

9. An optical support column structure according to claim 7, characterized in that, The bottom of the white silicone part (11) is coaxial with the boss (15) and has an inner concave hole (26).

10. An optical support column structure according to claim 5, characterized in that, Anti-deformation grooves A (31) are formed on each side edge of the hardware bracket body (12) and on opposite sides of the root of the reinforcing connection (13).

11. An optical support column structure according to claim 8, characterized in that, Anti-deformation grooves B (32) are formed on each side edge of the hardware bracket body (12) and on opposite sides of the root of the extension block (25).

12. The optical support column structure according to claim 5, characterized in that, The free end of the reinforced connecting part (13) is configured as a "T" shape.

13. A display device, characterized in that, include: Circuit board (29); Multiple light-emitting elements (30) are mounted on the circuit board (29); An optical element (28) is disposed above the circuit board (29); as well as A support structure is disposed on the upper surface of the circuit board (29) and located between the plurality of light-emitting elements (30) for supporting the optical sheet (28). The supporting structure is the optical support column structure (18) as described in any one of claims 1-8. Among them, the metal bracket body (12) of the optical support column structure serves as a lead frame and is fixed to the upper surface of the circuit board (29) by welding. The white silicone part (11) of the optical support column structure serves as a support base, and its bottom surface is connected to the circuit board (29) through the hardware bracket body (12). The transparent silicone part (10) of the optical support column structure (18) serves as a transparent support column extending from the upper surface of the white silicone part (11), with its top surface contacting the lower surface of the optical sheet (28) to provide support, and the transparent silicone part (10) covers at least one of the light-emitting side of the light-emitting element (30).

14. A display device according to claim 13, characterized in that, The overall height of the optical support column structure (18) is greater than or equal to the height of the light-emitting surface of the light-emitting element (30); and the optical support column structure (18) is located outside the backlight range of the light-emitting element (30) to avoid obstructing the light emission path of the light-emitting element (30).

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