Backplane, backplane module and display module

Abstract

The application discloses a back plate, a back plate module and a display module. The back plate is applied to a display panel. The back plate comprises a composite layer. The composite layer is connected to the display panel. The composite layer is provided with an avoiding space corresponding to a local protruding position of the display panel. The technical scheme of the application enables the combination of the back plate and the display panel to realize an ultrathin form.

Description

Technical Field

[0001] This invention relates to the field of display panels, and particularly to a back panel, a back panel module, and a display module. Background Technology

[0002] Display panels are categorized into LED and OLED display panels based on their light-emitting principles. OLED display panel technology boasts advantages such as self-emissiveness, wide viewing angles, high contrast, low power consumption, and rapid response. In applications, OLED display panels are typically used in conjunction with a back panel to form a complete display system, such as a television. OLED display panels are composed of transistors, with a single sheet of metal on the back. To achieve a full-screen effect, the IC driving the display panel and the S-PCB board containing components are fixed to the back of the transistors, resulting in localized bulges on the back of the display panel due to the presence of these components.

[0003] Currently, back panels can be classified into stamped metal back panels, glass back panels, and composite material back panels based on their materials.

[0004] Composite material backplates are commonly used in OLED display panels. To ensure good heat dissipation for the OLED display panel, the gap between the OLED display panel and the backplate needs to be minimized. Since the thickness between the OLED display panel and the backplate is less than the height of the components on the back of the OLED display panel after the OLED display panel is fixed, the backplate needs to add a clearance structure at the corresponding positions of the local protrusions. However, the commonly used composite material backplates cannot be stamped and embossed. Therefore, by adding a heat dissipation metal plate between the backplate and the display panel, the glass is raised, which satisfies the heat dissipation of the glass and creates space to accommodate the components. However, this solution increases the production cost by adding a heat dissipation metal plate and also increases the thickness of the backplate and the display panel, which is not conducive to achieving an ultra-thin form of the whole device. Summary of the Invention

[0005] The main objective of this invention is to propose a back panel, a back panel module, and a display module, aiming to achieve an ultra-thin form for the entire device composed of the back panel and the display panel.

[0006] To achieve the above objectives, the present invention proposes a backplate for use in a display panel. The backplate includes a composite layer connected to the display panel, and the composite layer has a clearance space corresponding to a local protrusion of the display panel.

[0007] Optionally, the back panel further includes a thermally conductive layer disposed between the composite layer and the display panel.

[0008] Optionally, the back panel further includes a heat insulation layer disposed between the composite layer and the thermally conductive layer.

[0009] Optionally, the composite layer includes a first connecting layer and a second connecting layer, the first connecting layer and the second connecting layer are interconnected and connected to the display panel, the first connecting layer is disposed close to the display panel, and the clearance space is disposed in the second connecting layer.

[0010] Optionally, the first connecting layer includes a heat insulation part and a heat conduction part, the heat insulation part being connected to the heat conduction part, and the heat conduction part being disposed near the display panel and connected to the display panel.

[0011] Optionally, the composite layer includes a fixing part and a relief protrusion. The fixing part is connected to the display panel, and the relief protrusion is connected to the fixing part. The fixing part is disposed at the local protrusion and protrudes in a direction away from the local protrusion to form the relief space.

[0012] Optionally, the thickness of the back plate is greater than or equal to 1.5 mm and less than or equal to 3 mm.

[0013] Optionally, the thickness of the composite layer is greater than or equal to 0.4 mm and less than or equal to 0.8 mm.

[0014] Optionally, the composite layer further includes a bending portion, which is located on the side edge of the composite layer and bends towards the display panel; or, a face frame is connected to one side of the composite layer near the display panel, which is located on the side edge of the composite layer.

[0015] Optionally, the back plate is arc-shaped or rectangular.

[0016] The present invention also proposes a backplate module, wherein the backplate module includes the backplate.

[0017] The present invention also proposes a display module, the display module comprising:

[0018] The display panel has a partial protrusion;

[0019] And the back panel module, which is connected to the display panel.

[0020] The technical solution of this invention provides a clearance space for the partial protrusion on the back of the display panel through a composite layer, thereby avoiding the need to add a metal heat sink to dissipate heat from the back panel and raise it, reducing the overall thickness of the device, and achieving an ultra-thin form by combining the back panel and the display panel. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the backplate of the present invention;

[0023] Figure 2 This is a schematic diagram of another embodiment of the backplate of the present invention;

[0024] Figure 3 This is a schematic diagram of the backplate module of the present invention;

[0025] Figure 4 This is a cross-sectional view of the display module of the present invention;

[0026] Figure 5 This is a cross-sectional view of one side edge of the module shown in the present invention;

[0027] Figure 6 This is a cross-sectional view of another embodiment of the display module of the present invention.

[0028] Explanation of icon numbers:

[0029] label name label name 100 Back panel 200 Backplate module 10 Composite layer 40 Face frame 11 Avoiding protrusions 50 connector 12 Avoiding space 300 Display Module 13 Bending section 60 Display panel 20 thermal conductive layer 400 Local protrusion 30 Insulation layer

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] This invention proposes a back panel, a back panel module, and a display module.

[0035] In embodiments of the present invention, such as Figures 1 to 4 As shown, in order to achieve the above objectives, the present invention proposes a back plate 100, which is applied to a display panel 60. The back plate 100 includes a composite layer 10, which is connected to the display panel 60. The composite layer 10 is provided with a clearance space 12 at a local protrusion 400 of the display panel 60.

[0036] It should be noted that the back of the display panel 60 has localized protrusions 400 due to components, etc. These protrusions are typically 3 to 4 millimeters thick, while the thickness in areas without components is only about 0.8 millimeters. To ensure effective heat dissipation of the display panel 60 and to maintain a sufficiently thin overall structure for both the display panel 60 and the backplate 100, the gap between them needs to be kept as small as possible. Furthermore, the connector 50 connecting the display panel 60 and the backplate 100 is also typically very thin, such as commonly used foam adhesive, which is usually less than 1 millimeter thick. Therefore, when using foam adhesive to connect the backplate 100 to the display panel 60, the backplate 100 needs to have a clearance structure at the locations of the localized protrusions 400 on the display panel 60 to prevent the protrusions 400 from obstructing the connection.

[0037] Specifically, the composite layer 10 is connected to the display panel 60. The material, quantity, and size of the composite layer 10 are not limited. For example, a material with heat dissipation function can be provided and placed close to the display panel 60 to ensure heat dissipation. Alternatively, a material with heat insulation function can be provided to isolate the heat emitted by the display panel. Or, a multi-layer composite material with heat conduction or heat dissipation function can be provided. Furthermore, the composite layer 10 is provided with a clearance space 12 for the local protrusion 400, thereby avoiding the need to add a metal heat sink to dissipate heat and raise the back plate 100. While maintaining the heat dissipation function of the back plate 100, the thickness of the whole machine is reduced, and the combination of the back plate 100 and the display panel 60 achieves an ultra-thin form.

[0038] Furthermore, in one embodiment, the backplate includes a composite layer 10 and a thermally conductive layer 20. The thermally conductive layer 20 is disposed between the composite layer 10 and the display panel. Specifically, the thermally conductive layer 20 may be disposed at the periphery of the display panel and connected to the composite layer 10. The display panel 60 is fixed and attached to the thermally conductive layer 20. The thermally conductive layer 20 transfers and evenly distributes the heat generated by the circuit components or the heat of the display panel 60, so that the heat diffuses to the surrounding area of ​​the display panel 60, thereby dissipating heat from the display panel.

[0039] In another embodiment, the back panel includes a composite layer 60, a thermally conductive layer 20, and a heat-insulating layer 30. The composite layer 60 can be configured as a single-layer or multi-layer board with thermal conductivity. The heat-insulating layer 30 is disposed between the composite layer 10 and the display panel 60. Specifically, the heat-insulating layer 30 is disposed on the side of the thermally conductive layer 20 away from the display panel 60 and is connected to the thermally conductive layer 20, forming a heat-insulating layer 30 between the composite layer 10 and the thermally conductive layer 10 and in contact with the composite layer 10 and the thermally conductive layer 10. It can be understood that the heat-insulating layer 30 prevents the heat generated by the driving power supply, control circuit board, etc. inside the display panel 60 from being transferred to the viewing surface of the display panel, and the heat-insulating layer 30 further reduces the possibility of the heat from the composite layer 10 being transferred to the display panel again, ensuring good heat dissipation of the back panel.

[0040] It is understood that the back plate may also be provided with multiple layers including a composite layer 10, a thermally conductive layer 20 and a thermally insulating layer 30. The thermally conductive layer 20, the thermally insulating layer 30 and the composite layer 10 may be integrally formed or fixed by other connection methods, such as bonding, wire fitting, interference fit, snap-fit, etc. In this embodiment, the back plate is formed by integrally forming the thermally conductive layer 20, the composite layer 10 and the thermally insulating layer 30.

[0041] In another embodiment, the composite layer 10 includes a first connecting layer and a second connecting layer, the first connecting layer and the second connecting layer are interconnected and connected to the display panel 60, the first connecting layer is disposed close to the display panel 60, and the clearance space 12 is disposed on the second connecting layer.

[0042] The first connecting layer includes a heat insulation part and a heat conduction part. The heat insulation part is connected to the heat conduction part. The heat conduction part is disposed near the display panel 60 and connected to the display panel 60. Specifically, the heat conduction part is attached to the display panel 60. Similarly, in this embodiment, the heat conduction part has the same function as the aforementioned heat conduction layer 20, which is to conduct heat away from the display panel 60. The heat insulation part is connected to the heat conduction part and disposed on the side away from the heat conduction part and away from the display panel 60, which has the same function as the aforementioned heat insulation layer 30, in order to prevent heat from being transferred to the viewing surface of the display panel.

[0043] Understandably, in this embodiment, by setting multiple composite layers 10 and providing clearance spaces 12 for the composite layers 10, a backplate 100 with certain functions can be obtained and the local protrusions 400 can be avoided. Optionally, the first connecting layer can achieve heat dissipation function by setting different materials, such as setting the heat-conducting part to a metal material to dissipate heat from the display panel, and setting the heat-insulating part to a heat-insulating plastic material to prevent the heat from the heat-conducting part from dissipating, thereby obtaining a backplate 100 that can dissipate heat and insulate the display panel 60.

[0044] Furthermore, the composite layer 10 includes a fixing part and a relief protrusion 11. The fixing part is connected to the display panel 60, and the relief protrusion 11 is connected to the fixing part. The fixing part is located at the local protrusion 400 and bends away from the local protrusion to form the relief space.

[0045] Understandably, by setting the avoidance protrusion 11 on the composite layer 10 to form an avoidance space 12, after the back plate 100 is installed, the partial protrusion 400 of the display panel 60 is in the avoidance space. The avoidance space 12 is used to store and protect the partial protrusion 400 of the display panel 60, so as to prevent the protruding part of the display panel 60 from being exposed, thereby achieving the purpose of the back plate 100 to cover the partial protrusion 400 of the display panel 60.

[0046] It should be noted that in the past, the stamped metal back plate 100 was formed by stretching and bending the sheet metal with a mold, which could meet the complex structural requirements, but the mold cost was relatively high; and the back plate 100 was usually made into an ultra-thin shape. Therefore, the strength and flatness requirements of the stamped back plate 100 were extremely high, and the sheet metal stamping mold adjustment was difficult and the yield was low.

[0047] Therefore, during the manufacturing process, the composite layer 10 can be stamped separately to form the avoidance protrusion 11. The mold used is simpler than before, which reduces production costs and the difficulty of the manufacturing process, and improves production efficiency.

[0048] It should be noted that, in addition to avoiding the local protrusion 400 as described above, heat dissipation of the display panel 60 is also required. Normally, by adding a heat dissipation metal plate between the back plate 100 and the display panel 60, the display panel 60 is raised, which satisfies the heat dissipation of the display panel 60 and creates space for placing the local protrusion 400. However, adding a metal mounting plate will increase production costs. Moreover, it is understandable that avoiding the local protrusion 400 is not conducive to heat dissipation of the components at the local protrusion 400.

[0049] Therefore, by providing a composite layer 10 of metal material on the back plate 100, it not only provides clearance space 12 for the local protrusion 400, but also allows for heat dissipation of the local protrusion 400 without increasing production costs.

[0050] Furthermore, the surface area of ​​the composite layer 10 is greater than the surface area of ​​the thermally conductive layer 20 or the surface area of ​​the thermal insulation layer 30.

[0051] Optionally, the size of the thermally conductive layer 20 is the same as or similar to the size of the thermal insulation layer 30.

[0052] In this embodiment, the composite layer 10 has a fixing part and a relief protrusion 11. The size of the fixing part is the same as that of the composite layer 10 and the heat insulation layer 30, so as to facilitate production and save space. Moreover, the composite layer 10 and the heat insulation layer 30 should be structurally adapted to better transfer heat.

[0053] Of course, the composite layer 10 should be adapted to the size of the display panel 60. The size of the composite layer 10 or the heat insulation layer 30 can be adjusted according to actual needs, such as setting the composite layer 10 and the heat insulation layer 30 only in the position of the display panel 60 where the heat generation is high.

[0054] Furthermore, preferably, the composite layer 10 and the heat-conducting layer 20 are made of steel to dissipate heat from the display panel 60; the heat insulation layer 30 is made of plastic to prevent the heat insulation layer 30 from absorbing heat and causing heat diffusion, thereby transferring heat to the display panel 60 in the reverse direction.

[0055] Of course, in other embodiments, the composite layer 10 and the thermally conductive layer 20 can also be made of other materials with thermal conductivity, such as ceramics, graphene, etc., and the thermal insulation layer 30 can also be made of other materials with thermal insulation properties, such as resin, glass, etc.

[0056] Therefore, the material of the composite layer 10 is not limited. Of course, the above-mentioned functions of the composite layer 10 can also be achieved by coating. At the same time, the composite layer 10 can be formed by coating, making its thickness smaller. For example, the composite layer 10 can be formed by applying a thermally conductive coating to the insulation layer 30, or the composite layer 10 can be made of plastic but its surface is covered with a thermally conductive metallic coating. Similarly, the insulation layer 30 can also be obtained in the above way, so it will not be described in detail.

[0057] Optionally, in this embodiment, the thickness of the back panel 100 is greater than or equal to 1.5 mm and less than or equal to 3 mm, so as to achieve an ultra-thin shape of the back panel 100 and improve the user experience.

[0058] Optionally, the thickness of the composite layer 10 is greater than or equal to 0.4 mm and less than or equal to 0.8 mm. Experimental verification shows that the composite layer 10 can guarantee the support strength of the display panel 60 within the specified range, while also facilitating stamping and processing during production.

[0059] Of course, in other embodiments, the thickness of the back plate 100 and the thickness of the composite layer 10 can be set according to actual needs.

[0060] Furthermore, in another embodiment, reference is made to... Figure 6 The side edge of the composite layer 10 has a bend 13 formed by bending towards the display panel 60.

[0061] Specifically, the side edge of the composite layer 10 bends inward to form a hook, which shields the edge of the display panel 60 to prevent it from being bumped. The corners of the inward bend of the composite layer 10 are chamfered to prevent the sharp edge of the back panel 100 from causing injury to the user. At the same time, it is not necessary to add additional structures (such as the face frame 40) to treat the appearance of the display panel 60.

[0062] Understandably, the bending portion 13 can be set on the left and right sides or the top and bottom sides of the display panel 60 as needed, or the bending portion 13 can be set on the side edges of the composite layer 10 (i.e. the four corners of the display panel 60) at the same time to protect the display panel, reduce the use of the face frame, and reduce production costs.

[0063] Furthermore, the composite layer 10 has an arc-shaped structure or a rectangular structure.

[0064] As in yet another embodiment, reference is made to Figure 2 The composite layer 10 has an arc-shaped structure.

[0065] It should be noted that the curved structure of the composite layer 10 is suitable for the curved display panel 60. The curved display panel 60 has a curvature, which can provide users with a better viewing experience. By setting the composite layer 10 to match the curved structure of the curved display panel 60 to protect the back of the curved display panel 60, the overall thickness is not increased, thus achieving the ultra-thin form of the curved display panel 60.

[0066] Therefore, by setting the structure of the composite layer 10, it can be adapted to display panels 60 with different structures, thus increasing the application scenarios of the back panel 100.

[0067] The present invention also proposes a backplane module 200, with reference to Figures 3 to 6 The back panel module 200 includes the back panel 100, which is connected to the display panel 60 via the connector 50. The specific structure of the back panel 100 is as described in the above embodiments. Since the back panel module 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0068] Alternatively, the backplate module can be connected to the backplate without connectors, such as through welding or integral installation.

[0069] Optionally, the back panel module 200 further includes a face frame 40, which is disposed between the back panel 100 and the display panel 60.

[0070] It is understandable that without setting the bending part 13, the same effect can be achieved by setting the face frame 40. For example, the face frame 40 can be set between the back plate 100 and the display panel 60. In this embodiment, there are multiple face frames 40, which are located around the display panel 60 to further stabilize the display panel 60 and enhance the appearance of the display panel 60.

[0071] Of course, the two sides of the composite layer 10 can also be bent inward to form a structure that fits the face frame 40, such as a snap-fit ​​structure, so as to facilitate the installation of the face frame 40.

[0072] Furthermore, multiple connectors 50 are provided, including connectors 50 disposed between the face frame 40 and the composite layer 10, and connectors 50 disposed between the display panel 60 and the composite layer 10.

[0073] In this embodiment, the connector 50 is glue or double-sided tape, which fixes the front frame 40 or the back plate 100 to the back of the display panel 60 by bonding. In other embodiments, other forms of connector 50 can also be used, such as connecting by a snap-fit ​​structure or an interference fit.

[0074] Of course, there are no restrictions on the material of the glue or double-sided tape. You can choose the appropriate adhesive according to your actual needs, such as thermally conductive adhesive, heat dissipation adhesive, etc.

[0075] The present invention also proposes a display module 300, which includes a display panel 60 having a partial protrusion 400; and a back panel module 200, wherein the clearance space 12 of the back panel 100 is provided corresponding to the partial protrusion 400 for accommodating and clearing the protrusion. The specific structure of the back panel module 200 is as described in the above embodiments. Since the display module 300 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0076] Optionally, the display panel 60 may include, but is not limited to, an OLED display.

[0077] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A backplate for use in a display panel, characterized in that, The back plate includes: A composite layer is connected to the display panel, and the composite layer has a clearance space corresponding to a local protrusion of the display panel; the composite layer includes a fixing part and a clearance protrusion, the fixing part is connected to the display panel, the clearance protrusion is connected to the fixing part, and the fixing part is located at the local protrusion and protrudes in a direction away from the local protrusion to form the clearance space; A thermally conductive layer is disposed between the composite layer and the display panel. Specifically, the thermally conductive layer is disposed at the periphery of the display panel and connected to the composite layer, and the display panel is fixed and attached to the thermally conductive layer. A heat insulation layer is disposed between the composite layer and the thermally conductive layer. Specifically, the heat insulation layer is disposed on the side of the thermally conductive layer away from the display panel and is connected to the thermally conductive layer. The heat insulation layer is bonded to the composite layer and the thermally conductive layer. The surface area of ​​the composite layer is greater than the surface area of ​​the thermally conductive layer or the surface area of ​​the thermally insulating layer, and the thermally conductive layer and the thermally insulating layer are the same size.

2. The backplate as described in claim 1, characterized in that, The composite layer includes a first connecting layer and a second connecting layer. The first connecting layer and the second connecting layer are interconnected and connected to the display panel. The first connecting layer is disposed close to the display panel, and the clearance space is disposed in the second connecting layer.

3. The backplate as described in claim 2, characterized in that, The first connecting layer includes a heat insulation part and a heat conduction part, the heat insulation part is connected to the heat conduction part, and the heat conduction part is disposed close to the display panel and connected to the display panel.

4. The backplate as described in claims 1 to 3, characterized in that, The composite layer further includes a bending portion, which is located on the side edge of the composite layer and bends towards the display panel; or, a face frame is connected to one side of the composite layer near the display panel, and the face frame is located on the side edge of the composite layer.

5. The backplate as described in claims 1 to 3, characterized in that, The back plate is arc-shaped or rectangular; and / or, The thickness of the back plate is greater than or equal to 1.5 mm and less than or equal to 3 mm; and / or, The thickness of the composite layer is greater than or equal to 0.4 mm and less than or equal to 0.8 mm.

6. A backplane module, characterized in that, The backplate module includes the backplate as described in any one of claims 1 to 5.

7. A display module, characterized in that, The display module includes: The display panel has a partial protrusion; The back panel module of claim 6, wherein the back panel module is connected to the display panel.

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