A display device and a method for fixing a lamp plate

Abstract

This invention discloses a display device and a method for fixing a lamp panel. The display device includes: a back plate with multiple grooves; multiple elastic pads, each corresponding to one of the grooves, with the elastic pads located in the grooves and having an interference fit with the corresponding grooves; and a lamp panel bonded to the elastic pads with adhesive. The bonding area between the lamp panel and the back plate is only located at the grooves on the back plate, avoiding interference with other uneven parts of the back plate. This avoids the problem of poor adhesion caused by unevenness of the back plate surface, thereby preventing lamp panel warping and reducing the risk of lamp panel breakage.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display device and a method for fixing a lamp plate. Background Technology

[0002] In display devices, the back panel has high rigidity to support and bear the components mounted on it. To achieve this rigidity, reinforcing ribs and other structures are typically incorporated into its surface, resulting in an uneven surface. The LED panel can be attached to the back panel, currently usually achieved by applying a single piece of adhesive tape. However, due to the uneven surface of the back panel, the adhesive tape is difficult to adhere completely, reducing the effective adhesion area and the uniformity of the adhesive distribution. Furthermore, air bubbles are difficult to expel completely between the adhesive tape and the back panel during attachment, increasing the likelihood of warping. Warping further increases the risk of LED panel breakage. Summary of the Invention

[0003] This invention provides a display device and a method for fixing a lamp panel, which can prevent the lamp panel from warping and reduce the risk of lamp panel breakage.

[0004] In a first aspect, the present invention provides a display device, comprising: a back plate, the back plate including a plurality of grooves;

[0005] Multiple elastic pads are provided, each elastic pad corresponding to one of the multiple grooves, and the elastic pads are located in the grooves and are interference-fitted with the corresponding grooves.

[0006] The light panel is bonded to the elastic gasket by an adhesive.

[0007] In some embodiments of the present invention, the plurality of groove arrays are arranged such that adjacent grooves are spaced at the same distance in the same direction.

[0008] In some embodiments of the present invention, the elastic pad includes a first elastic portion and a second elastic portion, wherein the second elastic portion is located on the side of the first elastic portion closer to the lamp panel;

[0009] The first elastic part and the second elastic part are coaxially arranged, and the orthographic projection of the second elastic part on the back plate covers the orthographic projection of the first elastic part on the back plate.

[0010] In some embodiments of the present invention, the surface of the second elastic portion facing the lamp panel is an arc-shaped surface, and the arc-shaped surface bends toward the back panel to form a space for accommodating the adhesive.

[0011] In some embodiments of the present invention, the surface of the first elastic portion facing the back plate is a plane.

[0012] In some embodiments of the present invention, the display device further includes: an adhesive layer located between the first elastic portion and the back plate, the adhesive layer being used to bond the elastic pad and the back plate.

[0013] In some embodiments of the present invention, the adhesive layer comprises double-sided adhesive.

[0014] In some embodiments of the present invention, the elastic gasket is made of vulcanized silicone rubber.

[0015] In some embodiments of the present invention, the lamp panel includes a glass substrate, the glass substrate being bonded to the elastic gasket by the adhesive; the adhesive includes silicone glass glue.

[0016] Secondly, the present invention also provides a method for fixing a lamp panel, comprising:

[0017] Multiple grooves are formed on the back plate;

[0018] An elastic gasket is installed in the groove; the elastic gasket is interference-fitted with the groove.

[0019] Add adhesive to the elastic gasket;

[0020] A light panel is mounted on the back panel; the light panel is bonded to each of the elastic gaskets by the adhesive.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention provides a display device and a method for fixing a lamp panel. The display device includes: a back plate with multiple grooves; multiple elastic pads, each corresponding to one of the grooves, with the elastic pads located in the grooves and having an interference fit with the corresponding grooves; and a lamp panel bonded to the elastic pads by an adhesive. The bonding area between the lamp panel and the back plate is only located at the grooves on the back plate, avoiding interference with other uneven parts of the back plate. This avoids the problem of poor adhesion caused by unevenness of the back plate surface, thereby preventing lamp panel warping and reducing the risk of lamp panel breakage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the backplate structure in related technologies;

[0025] Figure 2 A schematic diagram of the structure of a back panel with easy-open adhesive attached in related technologies;

[0026] Figure 3 This is a schematic cross-sectional view of the display device provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the back plate provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the groove provided in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the elastic gasket provided in an embodiment of the present invention;

[0030] Figure 7 for Figure 4 Cross-sectional view along the AA' direction;

[0031] Figure 8 This is a flowchart illustrating the method for fixing a light panel according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] Back plate 1, reinforcing rib 11, groove 12, first groove 121, second groove 122, positioning screw hole 13, convex bulge 14, easy-pull adhesive 15, groove 16, first recessed part 161, second recessed part 162, lamp plate 2, substrate 21, light-emitting device 22, functional film layer 3, elastic pad 4, first elastic part 41, second elastic part 42, adhesive layer 5, dispensing tube 6, adhesive 7, first direction X, second direction Y, third direction Z, first axis of symmetry L1, second axis of symmetry L2. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the figures denote the same or similar structures, and therefore repeated descriptions of them will be omitted. Terms describing position and direction in the present invention are illustrative based on the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of the present invention. The accompanying drawings of the present invention are for illustrative purposes only and do not represent actual proportions.

[0035] The display device includes a back plate and a light panel mounted on the back plate. The light panel is usually fixed to the back plate by adhesive. The back plate supports and bears the light panel, and also provides protection and heat dissipation.

[0036] Figure 1 This is a schematic diagram of the backplate structure in related technologies.

[0037] like Figure 1 As shown, in related technologies, in order to improve the rigidity of the back plate 1, a reinforcing rib 11 or similar structure is usually provided on the surface of the back plate 1. The surface of the back plate 1 with the reinforcing rib 11 has multiple grooves 12. For example, the grooves 12 may include a first groove 121 and a second groove 122. The first groove 121 extends along the first direction X, that is, the first groove 121 is a strip groove. The second groove 122 includes a strip groove extending along the first direction X and two strip grooves extending along the second direction Y. The two strip grooves extending along the second direction Y can be symmetrically arranged, and the two strip grooves extending along the second direction Y are respectively connected to the strip groove extending along the first direction X. That is, the second groove 122 is a C-shaped groove.

[0038] In addition, the back plate 1 will also be provided with structures such as multiple positioning screw holes 13 and protrusions 14. The positioning screw holes 13 can be used to position and fix the connecting parts during the assembly of the display device, and the protrusions 14 can raise some parts to prevent them from interfering with adjacent parts. The aforementioned reinforcing ribs 11, grooves 12, positioning screw holes 13 and protrusions 14 will result in an uneven surface on the back plate 1.

[0039] Figure 2 This is a schematic diagram of the structure of a back panel with easy-pull adhesive attached in related technologies.

[0040] like Figure 1 and Figure 2 As shown, in related technologies, the light panel is fixed to the back plate 1 by attaching easy-open adhesive tape 15. However, due to process limitations, the easy-open adhesive tape 15 is usually attached as a single piece to the back plate 1. For example, see... Figure 2The easy-pull adhesive 15 can be a strip structure and is attached to the surface of the back plate 1 along the second direction Y. To ensure the flatness of the attachment, multiple easy-pull adhesive strips 15 can be set at equal intervals. To ensure the flatness and strength of the adhesive, the spacing between adjacent adhesive strips 15 in the first direction X is set to be small, and the adhesive area occupies most of the surface area of ​​the back panel 1. This inevitably leads to the adhesive strips 15 adhering to uneven structures such as reinforcing ribs 11, grooves 12, positioning screw holes 13, and protrusions 14 on the back panel 1, resulting in gaps between the adhesive strips 15 and the back panel 1. This reduces the effective adhesive area of ​​the adhesive strips 15 and the uniformity of the distribution of the lamp board adhesive parts to a certain extent. Furthermore, air may enter between the parts of the adhesive strips 15 and the back panel 1, or between the adhesive strips 15 and the lamp board, during the adhesive application process. After the adhesive strips 15 are applied, the air is difficult to completely expel and may form air bubbles between the adhesive strips 15 and the back panel 1 or the lamp board, making it difficult for the lamp board and the back panel 1 to adhere completely. This increases the possibility of lamp board warping, and lamp board warping further increases the risk of lamp board breakage.

[0041] In view of this, embodiments of the present invention provide a display device and a method for fixing a lamp board, which can prevent the lamp board from warping and reduce the risk of lamp board breakage.

[0042] Figure 3 This is a cross-sectional structural diagram of a display device provided in an embodiment of the present invention.

[0043] like Figure 3 As shown in the embodiment of the present invention, the display device may include a back plate 1, a lamp plate 2, and other functional film layers 3. The lamp plate 2 serves as a light source and is fixed to the back plate 1. The functional film layers 3 are disposed on the light-emitting side of the lamp plate 2 and can be used to improve the light emission effect of the display device.

[0044] Specifically, the lamp panel 2 may include a substrate 21 and light-emitting devices 22 disposed on the substrate 21. The substrate 21 may be a glass substrate or a printed circuit board (PCB), and its shape may be adapted to the shape of the back panel 1, for example, it may be rectangular. The light-emitting device 22 may be, but is not limited to, light-emitting diodes (LEDs), Mini LEDs, Micro LEDs, and organic light-emitting diodes (OLEDs). The light-emitting device 22 may be a monochromatic light-emitting device or a light-emitting device including at least two colors; no limitation is made here. The lamp panel 2 may be an integrated lamp panel, or, in large-size display devices, the lamp panel 2 may be composed of multiple sub-lamp panels spliced ​​together.

[0045] The functional film layer 3 may include, but is not limited to, one or more of the following film structures: diffusion layer, brightness enhancement layer, wavelength conversion layer, wavelength selection layer, etc. The above-mentioned multiple functional film layers are arranged sequentially along the third direction to homogenize light and enhance the brightness of the emitted light.

[0046] The light-diffusing layer contains scattering particle material. When light strikes this material, it undergoes continuous refraction and reflection, thus scattering the light and achieving uniform light distribution. The light-diffusing layer can be a plate-like structure of a certain thickness or a thin sheet-like structure. The entire light-diffusing layer is configured, and its shape is adapted to the shape of the display device, for example, it can be rectangular.

[0047] The brightness enhancement layer may include brightness enhancement prisms. The light-emitting surface of the brightness enhancement prisms includes multiple prism structures extending in the same direction. The prism structures can concentrate the light incident on the prism layer into a set angular range, i.e., the orthographic viewing angle, and recycle the light whose emission angle is outside this range through methods such as reflection, refraction, or total internal reflection. This allows the recycled light to be emitted as much as possible within the set angular range, thereby increasing the light emission efficiency at the orthographic viewing angle and improving the brightness. For example, the brightness enhancement layer may include two layers of brightness enhancement prisms arranged in a set manner. For instance, the prism structures in different brightness enhancement prisms may be arranged with their extension directions perpendicular to each other, thereby achieving higher light emission brightness and improving the display effect.

[0048] The brightness enhancement layer may also include a reflective polarizer. Light incident on the reflective polarizer is split into two parts with different polarization directions. Light with the desired polarization direction can be transmitted through the reflective polarizer, while light with the undesirable polarization direction can be reflected multiple times inside the reflective polarizer and then reused before being emitted, thereby improving the light utilization efficiency and increasing the brightness of the emitted light. At the same time, the emitted light has polarization properties. When applied to a liquid crystal display device, the use of a polarizer on the liquid crystal display panel can be omitted.

[0049] When the light-emitting device 22 is a monochromatic light-emitting device, the functional film layer 3 may further include a wavelength conversion layer. The wavelength conversion layer includes a wavelength conversion material, which can emit light of other colors when excited by monochromatic light, thus achieving full-color display. For example, the light-emitting device 22 may be a blue light-emitting device, and the wavelength conversion layer includes a red light conversion material and a green light conversion material. The red light conversion material is excited to emit red light when irradiated by blue light, and the green light conversion material is excited to emit green light when irradiated by blue light. Thus, the wavelength conversion layer emits red and green light when excited by the emitted light from the blue light-emitting device, and the blue, red, and green light are mixed to form white light, which is then emitted. In some embodiments, the wavelength conversion material may be a quantum dot material; in other embodiments, the wavelength conversion material may be a fluorescent material.

[0050] The functional film layer 3 may also include a wavelength selective film. The wavelength selective film allows light of a set wavelength to pass through while blocking light of other wavelengths, thereby improving the light extraction efficiency of the set wavelength. For example, when the light-emitting device is a blue light-emitting device, the wavelength selective film may be a blue light transmission film. The wavelength conversion layer is disposed on the light-emitting side of the blue light transmission film. The blue light transmission film has good transmittance for blue light, so that blue light incident on the wavelength conversion layer excites the wavelength conversion material to emit red and green light, which can improve the light utilization rate. At the same time, it can reflect red and green light, thereby improving the light extraction efficiency of red, green and blue light and increasing the brightness of the white light mixed from the three.

[0051] The aforementioned multiple film layers with different functions can be stacked and fixed by means of support such as the frame of the display device or a bracket. The order of each functional film layer can be arranged according to actual needs. Setting the functional film layer 3 in the display device can control the light emission of the display device and improve the display effect. Its specific combination and structure can be designed according to product requirements, and the embodiments of the present invention are not limited here.

[0052] Figure 4 This is a schematic diagram of the backplate provided in an embodiment of the present invention.

[0053] like Figure 3 and Figure 4 As shown in the embodiments of the present invention, the material of the back plate 1 can be one of, but not limited to, aluminum, iron, aluminum alloy, or iron alloy. The back plate 1 is usually rectangular in structure. When applied to irregularly shaped display devices, the shape of the back plate 1 is adapted to the shape of the display device. The back plate 1 can be used to support and fix the lamp plate 2, and can also dissipate heat from the lamp plate.

[0054] In this embodiment of the invention, the back plate 1 includes a plurality of grooves 16, which are located on the surface of the back plate 1 facing the lamp panel 2. For example, Figure 5 This is a schematic cross-sectional view of the groove 16 provided in an embodiment of the present invention. (Refer to...) Figures 3-5 The groove 16 may include a first recess 161 and a second recess 162, which are arranged along a third direction Z, perpendicular to the back plate 1 and pointing from the back plate 1 to the lamp plate 2. The first recess 161 and the second recess 162 may be coaxially arranged, and the shape of the groove 16 may be symmetrical about the aforementioned axis L3. The cross-sectional shape of both the first recess 161 and the second recess 162 in the third direction Z may be circular, and the area of ​​the cross-section of the first recess 161 in the third direction Z is smaller than the area of ​​the cross-section of the second recess 162 in the third direction Z.

[0055] In this embodiment of the invention, the area occupied by the groove 16 on the surface of the back plate 1 is small. For example, the maximum aperture of the groove 16 (the aperture d2 of the second recess 162) can be only half the maximum aperture of the positioning screw hole 13. By rationally designing the distribution of multiple grooves 16, the grooves 16 can avoid other uneven structures on the surface of the back plate 1 and be distributed only on the flat area of ​​the back plate 1. The bonding parts of the back plate 1 and the lamp plate 2 are consistent with the distribution of the grooves 16, so that in the subsequent bonding process of the lamp plate, the problem of poor adhesion caused by interference between the bonding parts and other uneven structures on the surface of the back plate 1 can be avoided, ensuring the bonding effect, and at the same time avoiding adverse effects on the function of other structures on the back plate 1.

[0056] For example, the aperture d1 of the first recess 161 can be equal to or slightly less than 3.1 mm, the height h1 of the first recess 161 in the third direction Z can be equal to or slightly less than 0.9 mm, the aperture d2 of the second recess 162 can be equal to or slightly less than 8.1 mm, and the height h2 of the second recess 162 in the third direction Z can be equal to or slightly less than 0.8 mm.

[0057] In specific implementation, the shape of the cross section of the groove 16 in the third direction Z can also be other shapes, such as rectangle. The groove 16 can also include more recesses arranged along the third direction Z, and their size can be adjusted according to the size of the back plate 1, which is not limited here.

[0058] Reference Figure 4 In this embodiment of the invention, the display device further includes a plurality of elastic pads 4, which are correspondingly arranged one-to-one with a plurality of grooves 16 on the back plate 1. The shape and size of the elastic pads 4 are adapted to the shape and size of the grooves 16. For example, the size of the elastic pads 4 can be slightly larger than the size of the corresponding grooves 16. Since the elastic pads 4 have a certain elasticity, when placed in the grooves 16, the elastic pads 4 can be interference-fitted with the corresponding grooves 16, thereby fixing them in the grooves 16. For example, the material of the elastic pads 4 can be vulcanized silicone rubber. Vulcanized silicone rubber has good elasticity and stability, can be cured at room temperature without heating or pressure, and has a small shrinkage rate after curing.

[0059] In this embodiment of the invention, the lamp panel 2 can be bonded to the elastic gasket 4 fixed in the groove 16 using adhesive. The bonding interface between the lamp panel 2 and the elastic gasket 4 can avoid other uneven structures on the back plate 1, preventing interference with other structures and affecting their functions. Furthermore, the consistent shape and size of each groove 16 and each elastic gasket 4 ensures that all bonding interfaces are located in the same horizontal plane, thus avoiding weak bonding due to unevenness of the back plate 1 surface, preventing warping of the lamp panel 2, and reducing the risk of breakage. Simultaneously, the elastic gasket 4 is made of an elastic material with a high elastic modulus, which can also improve the product's shock resistance and reduce the risk of breakage of the lamp panel 2 due to bumps or drops during installation or use.

[0060] Reference Figure 4 In this embodiment of the invention, the plurality of grooves 16 on the back plate 1 can be symmetrically distributed. For example, the plurality of grooves 16 are symmetrically distributed about a first axis of symmetry L1 and about a second axis of symmetry L2, wherein the first axis of symmetry L1 extends along a first direction X and the second axis of symmetry L2 extends along a second direction Y. Therefore, the adhesive force on the lamp plate 2 is symmetrical, avoiding weak adhesion caused by uneven force on both sides of the lamp plate 2.

[0061] Furthermore, multiple grooves 16 can be arranged in an array along the first direction X and the second direction Y, and the spacing between adjacent grooves 16 in the same direction is the same, so that the bonding parts of the lamp plate 2 and the back plate 1 are evenly distributed, that is, the stress points of the lamp plate 2 are evenly distributed, and the lamp plate 2 can have good flatness after being bonded to the back plate 1, further avoiding the lamp plate 2 from warping.

[0062] In specific implementations, the spacing between adjacent grooves 16 in the first direction X and the spacing between adjacent grooves 16 in the second direction Y can be the same or different. The number of grooves 16 arranged along the first direction X and the number of grooves 16 arranged along the second direction Y can also be the same or different, and are not limited here. For example, the spacing s1 between adjacent grooves 16 in the first direction X can be 61 mm, and the spacing s2 between adjacent grooves 16 in the second direction Y can be 80 mm.

[0063] In practical implementation, by selecting a suitable type of adhesive, the bonding area can have a strong adhesive force with a small bonding area, so that the substrate 21 of the lamp board 2 and the elastic pad 4 are firmly attached.

[0064] For example, when the substrate 21 is a glass substrate, the adhesive can be silicone glass glue. When the silicone glass glue is cured, it can react with the glass, so that the adhesive and the glass have a strong adhesion. In addition, the silicone glass glue can also react chemically with the rubber to form a cross-linked structure, so that the adhesive and the elastic gasket 4 also have a strong adhesion. Thus, the glass substrate 21 can be bonded to the elastic gasket 4 fixed in the groove 16 of the back plate 1.

[0065] When the substrate 21 is a PCB with a metal substrate, the adhesive can be one or more of the following, including but not limited to isocyanate adhesives, chlorinated rubber adhesives, nitrile rubber adhesives, chlorosulfonated polyethylene adhesives, silicone rubber adhesives and coupling agent adhesives. The above adhesives can bond with rubber through mutual diffusion, penetration and co-crosslinking, and can also bond with metal through physical or chemical adsorption. Thus, the metal substrate can be bonded to the elastic gasket 4 fixed in the groove 16 of the back plate 1.

[0066] As can be seen, at the interface between the elastic gasket 4 and the lamp board 2, the adhesive reacts with the surface it contacts to bond, rather than simply being physically attached. This avoids air bubbles remaining at the bonding interface during the bonding process from affecting the bonding effect and helps to prevent the lamp board 2 from warping.

[0067] Figure 6 This is a schematic diagram of the structure of the elastic gasket provided in an embodiment of the present invention. Figure 6 An exemplary embodiment of the present invention illustrates the structure of a possible elastic gasket 4, which is adapted to, for example... Figure 5 The groove 16 shown. Wherein, Figure 6 (a) and Figure 6 (b) shows the overall structure of the elastic pad 4 when viewed from different angles. Figure 6 (c) shows a top view of the elastic pad 4.

[0068] like Figure 3 and Figure 6 As shown in the embodiment of the present invention, the elastic pad 4 may include a first elastic part 41 and a second elastic part 42, wherein the first elastic part 41 and the second elastic part 42 are arranged along a third direction Z, the first elastic part 41 and the second elastic part 42 are coaxially arranged, and the shape of the elastic pad 4 may be symmetrical about the aforementioned axis L3. The cross-sectional shape of the first elastic part 41 and the second elastic part 42 in the third direction Z may both be circular, and the area of ​​the cross-section of the first elastic part 41 in the third direction Z is smaller than the area of ​​the cross-section of the second elastic part 42 in the third direction Z.

[0069] Figure 7 for Figure 4 Cross-sectional view along the AA' direction.

[0070] like Figure 7 As shown, in this embodiment of the invention, the first elastic part 41 is located within the first recess 161 of the groove 16, and its shape and size match the shape and size of the first recess 161. The second elastic part 42 is located within the second recess 162 of the groove 16, and its shape and size match the shape and size of the second recess 162. For example, the diameter d1' of the first elastic part 41 can be 3.1 mm, the height h1' of the first elastic part 41 in the third direction Z can be 0.9 mm, the diameter d2' of the second elastic part 42 can be 8.1 mm, and the height h2' of the second elastic part 42 in the third direction Z can be 0.8 mm.

[0071] In this embodiment of the invention, the first elastic part 41 is located on the side that is relatively closer to the back plate 1, and the second elastic part 42 is located on the side that is relatively closer to the lamp plate 2. The orthographic projection of the second elastic part 42 on the back plate 1 covers the orthographic projection of the first elastic part 41 on the back plate 1. That is, the surface of the elastic pad 4 in contact with the adhesive can have a larger area, which is beneficial to increase the effective bonding area and improve the flatness of the lamp plate 2 after bonding.

[0072] like Figure 7 As shown in this embodiment of the invention, the surface of the second elastic portion 42 of the elastic pad 4 facing the lamp panel 2 can be an arc-shaped surface. This arc-shaped surface bends towards the back plate 1, forming a space Q for accommodating adhesive. For example, the spaces Q for accommodating adhesive on each elastic pad 4 are identical. By adding an equal amount of adhesive to the aforementioned spaces Q, the adhesive force at each bonding location between the back plate 1 and the lamp panel 2 exhibits good uniformity, which is beneficial for improving the flatness of the lamp panel 2 after bonding and preventing warping.

[0073] Reference Figure 6 (b) and Figure 7 In this embodiment of the invention, the surface of the first elastic portion 41 facing the back plate 1 can be flat. An adhesive layer 5 may also be included between the first elastic portion 41 and the back plate 1. The adhesive layer 5 is located on the surface of the first elastic portion 41 facing the back plate 1 and can be used to bond the first elastic portion 41 of the elastic pad to the back plate 1, thereby allowing the elastic pad 4 to be more firmly fixed in the groove 16 of the back plate 1. For example, the adhesive layer 5 can be a high-viscosity double-sided adhesive.

[0074] In some embodiments, the surface of the first elastic part 41 facing the back plate 1 can also be bonded to the back plate 1 by an adhesive. The adhesive is an adhesive that can bond rubber and metal, such as isocyanate adhesive, chlorinated rubber adhesive, nitrile rubber adhesive, chlorosulfonated polyethylene adhesive, silicone rubber adhesive, and coupling agent adhesive.

[0075] Based on the same inventive concept, embodiments of the present invention also provide a method for fixing a lamp panel. Figure 8 This is a flowchart illustrating the method for fixing a light panel according to an embodiment of the present invention, as shown below. Figure 8 As shown, the method for fixing the light panel includes the following steps:

[0076] S1. Multiple grooves are formed on the back plate;

[0077] S2. Install the elastic gasket in the groove;

[0078] S3. Add adhesive to the elastic gasket;

[0079] S4. Install the light panel on the back panel.

[0080] In step S1, the groove 16 avoids uneven structural features on the back plate 1, and multiple grooves 16 are evenly distributed on the back plate 1. This can improve the uniformity of the bonding area between the back plate 1 and the lamp plate 2, while avoiding interference with other structures on the back plate 1 and affecting their functions.

[0081] In step S2, the elastic gaskets 4 are correspondingly set with the grooves 16, and the shape and size of the elastic gaskets 4 are adapted to the shape and size of their corresponding grooves 16. The elastic gaskets 4 can be installed into the corresponding grooves 16 by pressing. Since the elastic gaskets 4 are elastic, they can form an interference fit with the grooves 16, thereby fixing the elastic gaskets 4 in the corresponding grooves 16.

[0082] Before installing the elastic gasket 4, it is necessary to prepare the elastic gasket 4 first. For example, in this embodiment of the invention, the elastic gasket 4 is made of vulcanized silicone rubber, which can be prepared at room temperature or high temperature. In one possible embodiment, additives such as reinforcing fillers, heat stabilizers, and structure control agents can be added to high molecular weight polyorganosiloxanes (i.e., raw rubber), and organic peroxides can be used as vulcanizing agents. The raw materials are crosslinked at high temperature through processes such as pressure molding, compression molding, extrusion, calendering, or injection molding to form vulcanized silicone rubber. In another possible embodiment, a polysiloxane with hydroxyl-terminated ends can be used as the base rubber compound, with multifunctional organosilicon compounds such as tetraethyl orthosilicate and methyltriethoxysilane as crosslinking agents, and organometallic compounds such as dibutyltin dilaurate as catalysts. Other fillers and additives are then combined to slowly condense into a three-dimensional network structure at room temperature to form vulcanized silicone rubber. In one possible implementation, a vinyl-containing polysiloxane can be used as the base polypropylene, and a Si-H bond-containing polysiloxane can be used as a crosslinking agent. Under the action of a platinum-based catalyst, the above raw materials undergo a hydrosilylation addition reaction to crosslink and form vulcanized silicone rubber.

[0083] In some embodiments, an adhesive layer may be provided between the elastic gasket 4 and the bottom of the groove 16, for example, using high-viscosity double-sided tape as the adhesive layer. Before installing the elastic gasket 4, the adhesive layer needs to be attached to the bottom of the elastic gasket 4. In some embodiments, the elastic gasket 4 and the bottom of the groove 16 can be bonded together with adhesive. Before installing the elastic gasket 4, adhesive needs to be added to each groove 16.

[0084] In step S3, adding an equal amount of adhesive to each elastic gasket 4 ensures that the adhesive force at each bonding point is the same, thereby guaranteeing the flatness of the lamp panel 2 after bonding. For example, adhesive 7 can be applied to the elastic gasket 4 using a dispensing nozzle 6.

[0085] In step S4, positioning blocks can be set around the back plate 1 for positioning. The lamp plate 2 is placed close to the positioning blocks to ensure alignment between the lamp plate 2 and the back plate 1. Then, the lamp plate 2 is slowly lowered, and the substrate 21 of the back plate 2 covers each elastic gasket 4 and the adhesive. The lamp plate 2 is then bonded to each elastic gasket 4 after the adhesive has cured. The curing method of the adhesive can be selected according to the type of adhesive. For example, when the elastic gasket 4 is made of vulcanized silicone rubber, the substrate 21 of the lamp plate 2 is made of glass substrate, and the adhesive is silicone glass glue, curing can be completed by standing at room temperature. The curing method of the adhesive can also include high-temperature curing, ultraviolet light curing, etc.

[0086] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0087] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A display device, characterized in that, include: Back plate, the back plate including a plurality of grooves; Multiple elastic pads are provided, each corresponding to one of the multiple grooves. The elastic pads are located in the grooves and are interference-fitted with the corresponding grooves. The elastic modulus of the elastic pads is greater than that of the back plate. A light panel, wherein the light panel is bonded to the elastic gasket by an adhesive; The plurality of grooves are arranged in an array, with adjacent grooves having the same spacing in the same direction; The elastic pad includes a first elastic portion and a second elastic portion, wherein the second elastic portion is located on the side of the first elastic portion closer to the lamp panel; The first elastic part and the second elastic part are coaxially arranged, and the orthographic projection of the second elastic part on the back plate covers the orthographic projection of the first elastic part on the back plate. The surface of the second elastic part facing the lamp panel is an arc-shaped surface, and the arc-shaped surface bends toward the back panel to form a space for accommodating the adhesive; The elastic gasket is made of vulcanized silicone rubber.

2. The display device as claimed in claim 1, characterized in that, The surface of the first elastic part facing the back plate is a plane.

3. The display device as claimed in claim 2, characterized in that, Also includes: An adhesive layer is located between the first elastic portion and the back plate, and the adhesive layer is used to bond the elastic gasket and the back plate.

4. The display device as claimed in claim 3, characterized in that, The adhesive layer includes double-sided adhesive.

5. The display device as claimed in claim 1, characterized in that, The lamp panel includes a glass substrate, which is bonded to the elastic gasket by the adhesive; the adhesive includes silicone glass glue.

6. A method for fixing a lamp panel, characterized in that, include: Multiple grooves are formed on the back plate; An elastic gasket is installed in the groove; The elastic gasket is interference-fitted with the groove; The elastic modulus of the elastic pad is greater than that of the back plate; Add adhesive to the elastic gasket; A light panel is mounted on the back plate; the light panel is bonded to each of the elastic gaskets by the adhesive. The plurality of grooves are arranged in an array, with adjacent grooves having the same spacing in the same direction; the elastic gasket includes a first elastic portion and a second elastic portion, the second elastic portion being located on the side of the first elastic portion closer to the lamp panel; the first elastic portion and the second elastic portion are coaxially arranged, and the orthographic projection of the second elastic portion on the back panel covers the orthographic projection of the first elastic portion on the back panel; the surface of the second elastic portion facing the lamp panel is an arc-shaped surface, the arc-shaped surface bending towards the back panel to form a space for accommodating the adhesive; the elastic gasket is made of vulcanized silicone rubber.

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