Microstructured optical layer support structure for a high brightness display backplane

Abstract

This utility model relates to the field of display device technology and discloses a microstructure optical layer support structure for a high-brightness display back panel. This microstructure optical layer support structure for a high-brightness display back panel is disposed between a metal back panel and a microstructure optical layer, and includes multiple support components arranged in an array. Each support component is an integrally formed composite structure. From bottom to top, each support component includes an umbrella-shaped copper pillar, a base, a silicone elastic buffer pillar, a hemispherical groove, and a silicone flexible lip. This device has advantages such as active heat dissipation, stress buffering, stable support, and precise positioning. It solves the problems in high-brightness displays where poor heat dissipation of the optical layer, thermal cycling, and pressure during assembly can lead to localized stress between the support structure and the optical layer. Simple point supports are prone to displacement or vibration of the optical layer when subjected to vibration or impact, and it is difficult to simultaneously ensure precise alignment of multiple optical layers in both vertical and horizontal directions.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, specifically to a microstructure optical layer support structure for the back panel of a high-brightness display. Background Technology

[0002] With the development of display technology, the market demand for high-brightness displays is growing. These displays typically use dense LED chips as backlighting and are paired with complex microstructure optical layers (such as diffuser plates, prism plates, brightness enhancement films, etc.) to improve brightness and uniformity.

[0003] In existing technologies, optical layers are typically supported on a backplate using simple pillars or snap-fit ​​structures. However, high-brightness LEDs generate a large amount of heat, and traditional plastic support structures are poor conductors of heat. Heat accumulates in the cavity between the optical layer and the backplate, causing the optical film to age, yellow, and even develop hot spots, affecting display uniformity and lifespan. Furthermore, the hot and cold cycles during display operation and the pressure during assembly can cause localized stress between the support structure and the optical layer, potentially leading to warping or deformation of the optical layer, resulting in Newton's rings or shadows. Simple point supports are prone to displacement or jitter of the optical layer when subjected to vibration or impact, affecting optical performance and making it difficult to ensure precise alignment of multiple optical layers in both vertical and horizontal directions.

[0004] In summary, a microstructure optical layer support structure for a high-brightness display backplate is proposed to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a microstructure optical layer support structure for the back panel of a high-brightness display. It has advantages such as active heat dissipation, stress buffering, stable support, and precise positioning. It solves the problems in high-brightness displays where poor heat dissipation of the optical layer, thermal cycling, and pressure during assembly can cause localized stress between the support structure and the optical layer, potentially leading to warping, deformation, Newton's rings, or shadows in the optical layer. Simple point supports are also prone to displacement or jitter of the optical layer when subjected to vibration or impact, affecting the optical effect and making it difficult to ensure precise alignment of multiple optical layers in both vertical and horizontal directions.

[0007] (II) Technical Solution

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A microstructure optical layer support structure for a high-brightness display back panel is disposed between a metal back panel and a microstructure optical layer, including multiple support components arranged in an array. Each support component is an integrally formed composite structure. From bottom to top, the support component includes an umbrella-shaped copper pillar, a base, a silicone elastic buffer pillar, a hemispherical groove, and a silicone flexible lip. The bottom of the umbrella-shaped copper pillar is bonded and fixed to the metal back panel with thermally conductive adhesive. The outer side of the umbrella-shaped copper pillar is fixedly connected to a base that is flush with its top and has the same taper as its bottom. The top of the base is provided with a silicone elastic buffer pillar that is fixedly connected to it. A hemispherical groove is opened in the center of the top of the silicone elastic buffer pillar. A silicone flexible lip that is flush with its top is fixedly connected to the outer periphery of the upper end of the silicone elastic buffer pillar. The tops of the silicone elastic buffer pillar and the silicone flexible lip are in contact with the microstructure optical layer.

[0009] The beneficial effects of this utility model are:

[0010] The microstructure optical layer support structure of this high-brightness display back panel conducts heat to the umbrella-shaped copper pillars and then to the metal back panel through silicone elastic buffer pillars and silicone flexible lips. This effectively dissipates the heat accumulated on the surface of the microstructure optical layer, reducing its temperature and slowing down light decay and aging. The silicone flexible lips increase the contact area, thereby increasing the heat conduction area and dispersing the support pressure. The silicone flexible lips combined with the silicone elastic buffer pillars form a suction cup-type contact head, which can effectively compensate for dimensional changes caused by thermal expansion and contraction and assembly tolerances, release stress, and prevent optical layer deformation and optical defects caused by stress concentration. It can also provide buffer protection when subjected to vibration or impact. At the same time, the suction cup-type contact utilizes atmospheric pressure and the material viscosity of the microstructure optical layer to provide additional adsorption force, preventing the microstructure optical layer from shifting during vibration. It has the advantages of active heat dissipation, stress buffering, and stable support.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the metal back plate is provided with a frustum-shaped positioning groove corresponding to the position of each support component, and the frustum-shaped positioning groove is compatible with the umbrella-shaped copper column and the base.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the suction cup contact provides additional adsorption force by utilizing atmospheric pressure and the material viscosity of the microstructure optical layer, preventing the microstructure optical layer from shifting during vibration. Combined with the frustum-shaped positioning groove on the back plate, it achieves precise positioning of the support component itself and the microstructure optical layer as a whole.

[0014] Furthermore, a silicone rubber hemisphere is bonded and fixed to the position of each support component on the microstructure optical layer using thermally conductive adhesive.

[0015] The beneficial effects of adopting the above-mentioned further solution are that the hemispherical shape of the silicone rubber hemisphere and the hemispherical groove form a complementary contact surface, which facilitates automatic alignment and rapid bonding during assembly. This significantly improves the positioning accuracy and assembly efficiency of the microstructure optical layer, avoids the offset or tilting problems common in traditional support structures, and ensures the stability of the optical layer in the vertical and horizontal directions, thereby reducing optical defects such as Newton's rings and shadows. At the same time, the silicone rubber hemisphere is bonded with thermally conductive adhesive, which not only enhances the fixing strength with the microstructure optical layer, but also provides an additional heat conduction path to help disperse local heat to the silicone elastic buffer column and improve the overall heat dissipation performance.

[0016] Furthermore, the top of the umbrella-shaped copper pillar is provided with several conical protrusions embedded inside the silicone elastic buffer pillar.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the conical protrusion increases the mechanical locking area between the umbrella-shaped copper column and the silicone elastic buffer column, thereby improving structural stability and heat conduction efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the support component structure of this utility model;

[0020] Figure 3 This is an exploded view of the support component structure of this utility model.

[0021] In the figure: 1. Metal backplate; 2. Microstructure optical layer; 3. Support component; 301. Umbrella-shaped copper pillar; 302. Base; 303. Silicone elastic buffer pillar; 304. Hemispherical groove; 305. Silicone flexible lip; 4. Frustum-shaped positioning groove; 5. Silicone rubber hemisphere. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the embodiments, by Figure 1-3This invention discloses a microstructure optical layer support structure for a high-brightness display backplate. The structure is positioned between a metal backplate 1 and a microstructure optical layer 2, and includes multiple arrayed support components 3. Each support component 3 is an integrally formed composite structure. From bottom to top, each support component 3 includes an umbrella-shaped copper pillar 301, a base 302, a silicone elastic buffer pillar 303, a hemispherical groove 304, and a silicone flexible lip 305. The bottom of the umbrella-shaped copper pillar 301 is bonded and fixed to the metal backplate 1 with thermally conductive adhesive. An umbrella-shaped copper column 301 is fixedly connected to a base 302 that is flush with its top and has the same taper as its bottom. The top of the base 302 is provided with a silicone elastic buffer column 303 that is fixedly connected to it. A hemispherical groove 304 is provided in the center of the top of the silicone elastic buffer column 303. A silicone flexible lip 305 that is flush with its top is fixedly connected to the outer periphery of the upper end of the silicone elastic buffer column 303. The tops of both the silicone elastic buffer column 303 and the silicone flexible lip 305 are in contact with the microstructure optical layer 2.

[0024] A frustum-shaped positioning groove 4 is provided on the metal back plate 1 corresponding to the position of each support component 3. The frustum-shaped positioning groove 4 is compatible with the umbrella-shaped copper column 301 and the base 302.

[0025] On the microstructure optical layer 2, a silicone rubber hemisphere 5 is fixed to each position of the support component 3 by thermally conductive adhesive.

[0026] The top of the umbrella-shaped copper pillar 301 is provided with several conical protrusions embedded inside the silicone elastic buffer pillar 303.

[0027] Working principle:

[0028] Step 1: The bottom of the umbrella-shaped copper column 301 is glued and fixed to the frustum-shaped positioning groove 4 of the metal back plate 1 with thermally conductive adhesive, and the positioning groove 4 is used to achieve precise alignment.

[0029] Step 2: Place the microstructure optical layer 2 on top of the silicone elastic buffer pillar 303, so that the hemispherical shape of the silicone rubber hemisphere 5 and the hemispherical groove 304 form a complementary contact surface, which makes it easy to achieve automatic alignment and rapid bonding during the assembly process, thus improving the positioning accuracy and assembly efficiency of the microstructure optical layer 2.

[0030] Step 3: When the display is working, heat is conducted through the silicone elastic buffer pillars 303 and the silicone flexible lips 305 to the umbrella-shaped copper pillars 301, and then to the metal backplate 1, dissipating the heat accumulated on the surface of the microstructure optical layer 2. This effectively reduces the temperature of the microstructure optical layer 2, slows down the light decay and aging rate. The silicone flexible lips 305 increase the contact area, thereby increasing the heat conduction area and dispersing the support pressure. The silicone flexible lips 305 combined with the silicone elastic buffer pillars 303 form a suction cup-type contact head, which can effectively compensate for dimensional changes caused by thermal expansion and contraction and assembly tolerances, release stress, and prevent optical layer deformation and optical defects caused by stress concentration. It can also provide buffer protection when subjected to vibration or impact. At the same time, the suction cup-type contact uses atmospheric pressure and the material adhesion of the microstructure optical layer 2 to provide additional adsorption force, preventing the microstructure optical layer 2 from shifting during vibration. Combined with the frustum-shaped positioning groove 4 on the backplate, it achieves precise positioning of the device itself and the entire microstructure optical layer 2.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microstructure optical layer support structure for a high-brightness display backplate, disposed between a metal backplate (1) and a microstructure optical layer (2), comprising a plurality of support components (3) arranged in an array, characterized in that: Each of the support components (3) is an integrally formed composite structure. The support component (3) includes, from bottom to top, an umbrella-shaped copper column (301), a base (302), a silicone elastic buffer column (303), a hemispherical groove (304), and a silicone flexible lip (305). The bottom of the umbrella-shaped copper column (301) is bonded to the metal back plate (1) with thermally conductive adhesive. The outer side of the umbrella-shaped copper column (301) is fixedly connected to the base (302) which is flush with the top and has the same taper as the bottom. The top of the base (302) is provided with a silicone elastic buffer column (303) fixedly connected to it. A hemispherical groove (304) is opened in the center of the top of the silicone elastic buffer column (303). The outer periphery of the upper end of the silicone elastic buffer column (303) is fixedly connected to a silicone flexible lip (305) which is flush with the top. The tops of the silicone elastic buffer column (303) and the silicone flexible lip (305) are in contact with the microstructure optical layer (2).

2. The microstructure optical layer support structure for a high-brightness display backplate according to claim 1, characterized in that: The metal back plate (1) is provided with a frustum-shaped positioning groove (4) corresponding to the position of each support component (3), and the frustum-shaped positioning groove (4) is compatible with the umbrella-shaped copper column (301) and the base (302).

3. The microstructure optical layer support structure for a high-brightness display backplate according to claim 2, characterized in that: On the microstructure optical layer (2), a silicone rubber hemisphere (5) is fixed to the position of each support component (3) by thermally conductive adhesive.

4. The microstructure optical layer support structure for a high-brightness display backplate according to claim 3, characterized in that: The top of the umbrella-shaped copper pillar (301) is provided with several conical protrusions embedded inside the silicone elastic buffer pillar (303).

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