CN116013169A - Curved surface display module and display device - Google Patents

Abstract

The embodiment of the present application provides a curved surface display module and a display device. The curved surface display module includes a display panel and a support plate. A heat-conducting adhesive is provided between the display panel and the support plate. The bonding surface of the display panel and the support plate is an arc. The curved surface display module includes a reinforcing part for strengthening the connection between the support plate and the display panel. The reinforcing part is a groove provided on the support plate or a connecting piece provided on the side of the support plate away from the display panel. The display panel and the support plate are bonded with heat-conducting glue, and the heat-conducting glue fixes the display panel and the support plate to each other to maintain the arc-shaped state of the support plate. The groove is used to reduce the thickness of the support plate to reduce the elastic stress of the support plate, thereby Reduces the risk of delamination of the support plate from the display panel. Alternatively, the reinforcing part is a connecting piece provided on the side of the supporting plate away from the display panel, the connecting piece is used to fix the supporting plate, and the connecting piece is used to provide a reaction force to offset the elastic stress of the supporting plate away from the display panel.

Description

Curved surface display module and display device

technical field

The present application relates to the technical field of display panels, in particular to a curved display module and a display device.

Background technique

In recent years, due to the advantages of OLED (Organic Light-Emitting Diode, organic light-emitting diode) display devices, such as thinness, flexibility and bendability, and high contrast, it has gradually been applied in the field of automotive display, and the operating environment of automotive display is relatively harsh. Sex is more demanding. The main component of the OLED display device is a curved display module. The curved display module includes a display panel and a support plate. Since the curved structure of the curved display module is formed by bending the support plate on the back of the curved display panel, The bent support plate will generate a force opposite to the deformation direction, that is, the rebound force. The existence of the rebound force will easily cause the display panel and the support plate of the curved display module to peel off.

Contents of the invention

The purpose of the embodiments of the present application is to provide a curved display module and a display device to reduce the problem of easy peeling between the display panel and the support plate of the curved display module. The specific technical scheme is as follows:

The first aspect of the present application proposes a curved display module, including a display panel and a support plate, a thermally conductive adhesive is provided between the display panel and the support plate, and the bonding surface of the display panel and the support plate It is arc-shaped, and the curved surface display module includes a reinforcement part for strengthening the connection between the support plate and the display panel. The reinforcement part is a groove provided on the support plate or the reinforcement part is a A connecting piece on a side of the support plate away from the display panel.

In some embodiments of the present application, the groove is a first groove provided on the support plate and facing the side of the display panel, at least a part of the first groove is filled with the thermal conductive glue.

In some embodiments of the present application, the first groove is filled with an EAA pad, and the thermal conductive glue is filled between the EAA pad and the first groove.

In some embodiments of the present application, the light-emitting surface of the display panel is a convex surface, the first groove is set in the middle of the support plate, or the first groove is set in the middle of the support plate and both sides of the support plate; the light-emitting surface of the display panel is a concave surface, the first groove is provided on both sides of the support plate, or the first groove is provided on the support plate sides and middle.

In some embodiments of the present application, along the length direction of the support plate, the size of the first groove located in the middle of the support plate is 1/3-1/2 of the length of the support plate; In the width direction of the support plate, the first distance between the first groove and the side of the support plate is greater than 10mm.

In some embodiments of the present application, along the length direction of the support plate, the size of the first grooves located on both sides of the support plate is 1/5-1/4 of the size of the support plate, Along the width direction of the support plate, a first distance between the first groove and the side of the support plate is greater than 10mm.

In some embodiments of the present application, the groove is a plurality of second grooves arranged in an array on a side of the support plate and away from the display panel.

In some embodiments of the present application, the light-emitting surface of the display panel is a convex surface, and the second grooves arranged in an array are arranged in the middle of the support plate, or the second grooves arranged in an array are arranged in a The middle part of the support plate and both sides of the support plate; the light emitting surface of the display panel is a concave surface, and the second grooves arranged in an array are arranged on both sides of the support plate, or arranged in an array The second groove is provided on both sides and the middle of the support plate.

In some embodiments of the present application, the second grooves have a major axis and a minor axis perpendicular to each other, and along the length direction of the support plate, the second grooves are arranged in a row along the minor axis; In the width direction of the support plate, the second grooves are arranged in rows along the long axis, and the second grooves in two adjacent rows are staggered.

In some embodiments of the present application, the connecting piece and the supporting plate have a profiling structure, both sides of the connecting piece are detachably connected to the supporting plate, and the middle part of the connecting piece is provided with a The raised part of the end connection.

In some embodiments of the present application, a back film is provided on a side of the display panel facing the support plate, and the thermally conductive adhesive is provided between the back film and the support plate.

A second aspect of the present application proposes a display device, the display device comprising the curved display module described in any one of the above first aspects.

In the curved display module provided by the embodiment of the present application, the thermal conductive adhesive is bonded between the display panel and the support plate. The glue plays a role of heat conduction, and transmits the heat emitted by the display panel to the support plate through the heat conduction glue, and dissipates the heat through the support plate. The curved surface display module includes a reinforcement part, which is used to strengthen the connection between the support plate and the display panel, that is, the reinforcement part is used to adapt the structure of the support plate to the arc structure of the display panel, and reduce the bending of the support plate. Elastic stress leads to the risk of delamination from the display panel.

The reinforcing part is a groove provided on the support plate, and the groove is used to reduce the thickness of the support plate, so as to reduce the elastic stress of the support plate, thereby reducing the risk of peeling off the support plate and the display panel. The groove structure does not penetrate the support plate, which can ensure that the surface area of the support plate remains unchanged, that is, the coating area of the thermally conductive adhesive will not be lost, the bonding strength of the thermally conductive adhesive will be guaranteed, and the risk of peeling off the support plate from the display panel will be reduced, and the support will not be lost. The heat dissipation area of the board is helpful to display the heat dissipation of the module. Alternatively, the reinforcement part is a connecting piece provided on the side of the supporting plate away from the display panel, the connecting piece is used to fix the supporting plate, and the connecting piece is used to provide a reaction force to offset the elastic stress of the supporting plate away from the display panel.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other embodiments according to these drawings.

Fig. 1 is a schematic diagram of elastic stress of a support plate;

Fig. 2 is another schematic diagram of supporting plate elastic stress;

FIG. 3 is a schematic diagram of the first structure of the convex surface display of the curved surface display module of the embodiment of the present application;

Fig. 4 is a front view of the support plate in Fig. 3;

Fig. 5 is a sectional view at AA' in Fig. 4;

Figure 6a is an assembly drawing of the support plate and the connector;

Fig. 6b is a front view of setting a second screw hole on the support plate;

Fig. 7 is a schematic diagram of the first structure of the concave surface display of the curved surface display module according to the embodiment of the present application;

Figure 8 is a front view of the support plate in Figure 7;

Fig. 9 is a sectional view at BB' in Fig. 8;

FIG. 10 is a schematic diagram of the second structure of the convex display of the curved display module of the embodiment of the present application;

Fig. 11 is a schematic diagram of the second structure of the concave surface display of the curved surface display module of the embodiment of the present application;

Fig. 12 is a front view of the support plate in Fig. 10 and Fig. 11;

Fig. 13 is a schematic diagram of the third structure of the concave surface display of the curved surface display module according to the embodiment of the present application;

Figure 14 is a front view of the support plate in Figure 13;

Fig. 15 is a sectional view at CC' in Fig. 14;

Fig. 16 is a schematic diagram of the structure of the second groove;

Fig. 17 is another front view in which the support plate is provided with a second groove;

Fig. 18 is another front view of the support plate provided with the second groove.

The reference signs are as follows:

Display panel 100 , support plate 200 , thermal paste 300 , groove 400 , first groove 410 , EAA pad 420 , second groove 430 , connector 500 , protrusion 510 , bolt 520 , second screw hole 530 , arc spacer 540, light-emitting surface 600, back film 700, polarizer 800, optical adhesive layer 900, glass cover 1000, major axis a, minor axis b, elastic stress F, length direction x, width direction y, the first A distance d1 and a second distance d2.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art based on this application belong to the scope of protection of this application.

In the related art, as shown in Fig. 1 and Fig. 2, since the support plate 200 with its own bendability has the advantages of small lamination gap after lamination and good contour of the curved surface, it is generally used in the curved surface display module. The support plate 200 has its own bendability. The support plate 200 in the curved display module has a bendable characteristic, and can be gradually bent after being attached to the display panel 100. However, since its bending is caused by elastic deformation, after the elastic deformation occurs, the material will produce a direction opposite to the deformation direction. The force is called elastic stress F, and the existence of this elastic stress F may cause peeling between the support plate and the display panel, resulting in the failure of the module to display.

The first aspect of the present application proposes a curved display module, as shown in FIG. 3 to FIG. The bonding surface of the support plate 200 is arc-shaped, and the curved surface display module includes a reinforcement part for strengthening the connection between the support plate 200 and the display panel 100. The reinforcement part is a groove 400 provided on the support The supporting plate 200 is away from the connecting piece 500 on the side of the display panel 100 .

In this embodiment, the thermally conductive adhesive 300 is bonded between the display panel 100 and the support plate 200. On the one hand, the thermally conductive adhesive 300 fixes the display panel 100 and the support plate 200 to maintain the arc shape of the support plate 200; , the thermally conductive adhesive 300 has good thermal conductivity and electrical insulation performance, and the display panel 100 and the support plate 200 are bonded by the thermally conductive adhesive 300, which can accelerate the heat transfer from the display panel 100 to the support plate 200, and dissipate the heat through the support plate 200 out, reduce the temperature of the surface display module during operation. The curved surface display module includes a reinforcement part, which is used to strengthen the connection between the support plate 200 and the display panel 100, that is, the reinforcement part is used to adapt the structure of the support plate 200 to the arc structure of the display panel 100, reducing the support The board 200 has the risk of peeling off from the display panel 100 due to elastic stress due to bending, thereby improving the yield rate and stability of the curved vehicle display module. For reliability tests such as display module high-temperature tests and vibration tests, compared with traditional technical solutions, it is conducive to improving the structural reliability of curved surface display modules, thereby promoting the achievement of higher-standard reliability conditions.

From Figure 3 to Figure 6a, it can be seen that there are at least two types of specific implementations in this application: the first type is the groove 400 provided on the support plate 200 as a reinforcement; the second type is that the support plate 200 is away from the display panel 100 A connecting piece 500 is provided on one side as a reinforcing part.

The first type of implementation manner: the groove 400 provided on the support plate 200 serves as a reinforcing part.

In practical applications, there are at least two ways of bending the curved display module: one is that the light-emitting surface 600 is convex, and the other is that the light-emitting surface 600 is concave.

As shown in Figure 3, Figure 7, Figure 10, and Figure 11, no matter whether the light-emitting surface 600 is convex or concave, the reinforcement part can be a groove 400 provided on the support plate 200, and the groove 400 is used to lower the support plate. 200, so as to reduce the elastic stress of the support plate 200, thereby reducing the risk of the support plate 200 being peeled off from the display panel 100. The groove 400 structure can reduce the elastic stress of the support plate 200 , and the groove structure is a groove structure, that is, the groove 400 does not penetrate the support plate, which can ensure the support strength of the support plate 200 .

The second type of implementation manner: on the side of the support plate 200 facing away from the display panel 100 , a connecting piece 500 is provided as a reinforcing part.

As shown in Figure 6a, when the light-emitting surface 600 is a concave surface, the reinforcing part is a connecting piece 500 provided on the side of the support plate 200 away from the display panel 100, the connecting piece 500 is used to fix the support plate 200, and the connecting piece 500 is used to A reaction force is provided to offset the elastic stress of the support plate 200 away from the display panel 100 . In addition, in the case where the light-emitting surface 600 is convex, the method is similar to that shown in FIG. 6 a , and the only difference lies in the direction of curvature.

In the above two types of implementations, the material of the support plate 200 can preferably be a metal plate, specifically an aluminum plate, the metal plate has good bendability and toughness, and the metal plate has better heat dissipation performance, which helps the module to dissipate heat. .

In some embodiments, as shown in FIG. 3 to FIG. 5 and FIG. 7 to FIG. 12 , the groove 400 is a first groove 410 provided on the support plate 200 and facing the side of the display panel 100 , the first groove 410 It is at least partially filled with thermally conductive paste 300 .

In the embodiment shown in FIG. 3 to FIG. 5 and FIG. 7 to FIG. 12 , the first groove 410 is arranged on the side of the support plate 200 facing the display panel 100 , and the setting of the first groove 410 thins the part of the support plate 200 The thickness of the region also reduces the elastic stress of the support plate 200 . The support plate 200 is attached to the display panel 100, and there is a certain distance between the bottom of the first groove 410 and the display panel 100. The thickness of the thermally conductive adhesive 300 at the first groove 410 is greater than that of the other. For the display module provided with the first groove 410 , the bonding strength at the first groove 410 is higher, which is beneficial to reduce the risk of peeling off the support plate 200 . Compared with the through hole, the groove structure can ensure that the adhesive coating area of the support plate 200 remains unchanged, that is, the coating area of the thermally conductive adhesive 300 is not lost, and the risk of peeling off the support plate 200 from the display panel 100 is reduced.

In some embodiments, as shown in FIG. 10 and FIG. 11 , the first groove 410 is filled with EAA (EthyleneAcrylic Acid, ethylene acrylic acid copolymer) spacer 420, and the gap between the EAA spacer 420 and the first groove 410 is filled. There is Thermal Adhesive 300.

In this embodiment, the EAA material has the characteristics of good bonding properties and high toughness. The support plate 200 includes a first region where the direction of the elastic stress faces away from the display panel 100 , and also includes a second region where the direction of the elastic stress faces the display panel 100 . The first groove 410 can be opened in the first area. Since the EAA spacer 420 has good bonding properties, the EAA spacer 420 is placed in the first groove 410, compared to the direct bonding method of the display panel 100 and the support plate 200. In other words, the bonding strength between the EAA spacer 420 and the display panel 100 and the bonding strength between the EAA spacer 420 and the first groove 410 are greater than the bonding strength between the display panel 100 and the support plate 200 directly. , to reduce the risk of delamination between the support plate 200 and the display panel 100; the first groove 410 can be opened in the second area, because the elastic stress of the support plate 200 in the second area is directed towards the display panel 100, and because the toughness of the EAA spacer 420 is high, When the EAA spacer 420 is squeezed by the first groove 410 and the display panel 100, it can play a role of cushioning and shock absorption, preventing the elastic stress in the direction of the display panel from squeezing the display panel 100, resulting in cracking of the encapsulation layer and causing defects such as abnormal display. .

Specifically, the thickness of the EAA pad located in the first area is preferably 0.2-0.5 mm, and the thickness of the EAA pad located in the second area is preferably 0.3-0.6 mm. The thickness of the thermally conductive adhesive 300 between the EAA block and the support plate 200 is greater than 50 microns.

In some embodiments, as shown in FIG. 3 , the light-emitting surface 600 of the display panel 100 is a convex surface, and the first groove 410 is disposed in the middle of the support plate 200 , or, as shown in FIGS. 10 and 12 , the first groove 410 410 is disposed at the middle of the support plate 200 and two sides of the support plate 200 . As shown in FIG. 7, the light emitting surface 600 of the display panel 100 is concave, and the first groove 410 is arranged on both sides of the support plate 200, or, as shown in FIGS. 11 to 12, the first groove 410 is arranged on the support plate. 200 sides and middle.

In this embodiment, the light emitting surface 600 of the display panel 100 is located on a side of the display panel 100 away from the support plate 200 . When the light-emitting surface 600 is a convex surface, after the support plate 200 is bonded to the display panel 100, the middle part of the support plate 200 generates an elastic stress away from the surface of the display panel 100, and a first groove 410 is provided in the middle part of the support plate 200 to thin the support plate 200. The thickness at the middle position reduces the elastic stress in the direction where the middle part of the support plate 200 is away from the surface of the display panel 100 and avoids the phenomenon that the middle part of the support plate 200 and the display panel 100 are peeled off from each other. When the light-emitting surface 600 of the display module is a concave surface, after the support plate 200 is bonded to the display panel 100, elastic stress is generated on both sides of the support plate 200 away from the surface of the display panel 100, and the first concave surface is respectively provided on both sides of the support plate 200. The groove 410 reduces the thickness of both sides of the support plate 200, reduces the elastic stress on both sides of the support plate 200 away from the surface of the display panel 100, and avoids the phenomenon that both sides of the support plate 200 and the display panel 100 are peeled off from each other.

Furthermore, when the light-emitting surface 600 of the display module is convex, after the support plate 200 is bonded to the display panel 100, elastic stress is generated in the middle of the support plate 200 away from the surface of the display panel 100, and the two sides of the support plate 200 are pressed toward the display panel 100. The elastic stress in the direction of the panel 100, or when the light-emitting surface 600 of the display module is concave, after the support plate 200 is bonded to the display panel 100, elastic stress in the direction away from the surface of the display panel 100 is generated on both sides of the support plate 200, and the support plate 200 The middle part produces elastic stress in the direction of pressing the display panel 100 . When the light-emitting surface 600 is a convex surface, by setting the first grooves 410 on both sides of the support plate 200, the elastic stress on both sides of the support plate 200 pressing toward the display panel 100 is reduced, preventing the support plate 200 from squeezing the display panel 100. The pressure will cause the encapsulation layer to break and cause abnormal display and other defects, which can reduce the reaction force of the elastic stress on both sides of the support plate 200 toward the display panel to the middle of the support plate 200, thereby reducing the distance between the middle of the support plate 200 and the display panel 100. The size of the rebound force reduces the risk of peeling between the middle part of the support plate 200 and the display panel. When the light-emitting surface 600 is concave, by setting the first groove 410 in the middle of the support plate 200, the thickness of the middle position of the support plate 200 is thinned, the elastic stress of the middle of the support plate 200 pressed toward the display panel 100 is reduced, and the The elastic stress in the middle of the small support plate 200 toward the direction of the display panel 100 produces a reaction force on both sides of the support plate 200, thereby reducing the magnitude of the rebound force on both sides of the support plate 200 away from the display panel 100, and reducing the pressure on both sides of the support plate 200. Risk of delamination from the display panel.

Moreover, regardless of whether the light-emitting surface 600 of the display panel 100 is convex or concave, the first groove 410 is provided in the middle of the support plate 200 and on both sides of the support plate 200, which is conducive to enhancing the coating between the display panel 100 and the support plate 200. The thickness of the glue enhances the bonding strength and helps prevent peeling.

In some embodiments, as shown in FIG. 4, along the length direction of the support plate 200, the size of the first groove 410 located in the middle of the support plate 200 is 1/3-1/2 of the length of the support plate 200; In the width direction of the support plate 200 , the first distance d1 between the first groove 410 and the side of the support plate 200 is greater than 10 mm.

In this embodiment, as shown in FIG. 4 , x is the length direction of the support plate 200 , and the size of the first groove 410 in the middle of the support plate 200 is 1/3-1/2 of the length of the support plate 200 . In the figure, y is the width direction of the support plate 200, along the width direction y of the support plate 200, the first distance d1 between the first groove 410 and the side of the support plate 200 is greater than 10mm, the purpose is to leave a space for the edge of the support plate 200 With a certain thickness, the first groove 410 does not penetrate the support plate 200 along the width direction y, which can improve the overall strength of the support plate 200 . Specifically, the first distance d1 between the first groove 410 and the side can be 10mm, 15mm, 20mm, 25mm, 30mm, etc., and the first distance d1 between the first groove 410 and the side can specifically be based on the support The size of the elastic stress of the plate 200 is determined. When the elastic stress of the supporting plate 200 is greater, the first distance d1 between the first groove 410 and the side is set to be smaller; when the elastic stress of the supporting plate 200 exists The smaller it is, the larger the first distance d1 between the first groove 410 and the side is set.

In some embodiments, as shown in FIG. 8 , along the length direction of the support plate 200 , the size of the first grooves 410 located on both sides of the support plate 200 is 1/5-1/4 of the size of the support plate 200 . In the width direction y of the support plate 200 , the first distance d1 between the first groove 410 and the side of the support plate 200 is greater than 10 mm.

In this embodiment, along the length direction x of the support plate 200 , the size of the first grooves 410 located on both sides of the support plate 200 is 1/5-1/4 of the size of the support plate 200 . Along the width direction y of the support plate 200, the first distance d1 between the first groove 410 and the side of the support plate 200 is greater than 10mm, the purpose is to leave a certain thickness for the edge of the support plate 200, the first groove 410 and the side of the support plate 200 The first distance d1 between the sides can be 10mm, 15mm, 20mm, 25mm, 30mm, etc. The first distance d1 between the first groove 410 and the sides can be determined according to the elastic stress of the support plate 200, When the elastic stress existing in the supporting plate 200 is larger, the first distance d1 between the first groove 410 and the side is set smaller; when the elastic stress existing in the supporting plate 200 is smaller, the first groove d1 is set to The larger the first distance d1 between 410 and the side is set.

In some embodiments, as shown in FIG. 8 , along the length direction of the support plate 200 , the first groove 410 is located on both sides of the support plate 200 , and the second distance between the first groove 410 and the side of the support plate 200 d2 is greater than 10mm.

In this embodiment, the distance between the first groove 410 and the side of the support plate 200 includes a second distance d2 between the first groove 410 and the side of the support plate 200 along the length direction of the support plate 200, the first The distance between the groove 410 and the side of the support plate 200 also includes a first distance d1 between the first groove 410 and the side of the support plate 200 along the width direction of the support plate 200 . The second distance d2 between the first groove 410 and the side of the support plate 200 is greater than 10mm, the purpose is to reserve a certain thickness for the edge of the support plate 200, the second distance d2 between the first groove 410 and the side It can be 10mm, 15mm, 20mm, 25mm, 30mm, etc. The second distance d2 between the first groove 410 and the side can be determined according to the elastic stress of the support plate 200. When the elastic stress of the support plate 200 is higher The larger the second distance d2 between the first groove 410 and the side is set to be smaller; when the elastic stress existing in the support plate 200 is smaller, the second distance d2 between the first groove 410 and the side is set smaller. The larger the distance d2 is set.

In some embodiments, as shown in FIGS. 13 to 15 , the groove 400 is a plurality of second grooves 430 arranged in an array on a side of the support plate 200 facing away from the display panel 100 .

In this embodiment, the second groove 430 is located on the side of the support plate 200 facing away from the display panel 100, and the second groove 430 is a groove structure, that is, the second groove 430 does not penetrate the support plate 200, ensuring that the support plate 200 is close to the display panel 100. One side of the panel 100 is flat, so the contact area between the support plate 200 and the display panel 100 is not lost, and the coating area of the thermally conductive adhesive 300 is not lost, so that the bonding strength between the support plate 200 and the display panel 100 is ensured, and the support plate 200 is reduced. 200 and the risk of delamination of the display panel 100. Moreover, it can also ensure a large heat dissipation area of the support plate 200, which is helpful for the heat dissipation of the curved display module.

A plurality of second grooves 430 are located on the side of the support plate 200 facing away from the display panel 100, and the second grooves 430 are arranged in an array, which facilitates the release of the elastic stress of the support plate 200 during the bending process. The second grooves 430 Deformation occurs within a certain range. When the display panel 100 and the support plate 200 are in the molding process, the second groove 430 can be deformed along with the bending process of the support plate 200, so that the shape of the support plate 200 changes with the shape of the display panel 100, preventing the support plate 200 from The display panel 100 is peeled off.

In some embodiments, as shown in FIG. 13 to FIG. 18 , the light-emitting surface 600 of the display panel 100 is a convex surface, and the second grooves 430 arranged in an array are arranged in the middle of the support plate 200, or the second grooves 430 arranged in an array are arranged In the middle of the support plate 200 and on both sides of the support plate 200; the light-emitting surface 600 of the display panel 100 is a concave surface, and the second grooves 430 arranged in an array are arranged on both sides of the support plate 200, or the second grooves 430 arranged in an array The groove 430 is disposed on both sides and the middle of the support plate 200 .

In this embodiment, the light emitting surface 600 of the display panel 100 is located on a side of the display panel 100 away from the support plate 200 . When the light-emitting surface 600 is a convex surface, the middle part of the support plate 200 generates an elastic stress away from the surface of the display panel 100, and the second groove 430 is provided in the middle part of the support plate 200 to reduce the thickness of the middle position of the support plate 200 and reduce the thickness of the middle part of the support plate 200. The elastic stress away from the display panel 100 avoids the phenomenon that the middle part of the support plate 200 and the display panel 100 are peeled off from each other. When the light-emitting surface 600 of the display module is concave, the elastic stress on both sides of the support plate 200 away from the surface of the display panel 100 is generated, and the second grooves 430 are respectively provided on both sides of the support plate 200 to thin the positions on both sides of the support plate 200. The thickness of the support plate 200 is reduced to reduce the elastic stress in the direction away from the surface of the display panel 100 on both sides of the support plate 200, so as to avoid the phenomenon that both sides of the support plate 200 and the display panel 100 are peeled off from each other.

Further, when the light-emitting surface 600 of the display module is convex, the elastic stress on both sides of the support plate 200 is produced in the direction of the display panel 100 due to bending, or when the light-emitting surface 600 of the display module is concave, the support plate 200 The middle part generates elastic stress toward the display panel 100 due to bending, and can reduce the reaction force generated by the elastic stress in the middle part of the support plate 200 toward the display panel 100 on both sides of the support plate 200 . When the light-emitting surface 600 is a concave surface, by setting the second groove 430 in the middle of the support plate 200, the thickness of the middle position of the support plate 200 is thinned, and the elastic stress in the direction of the display panel 100 is reduced in the middle of the support plate 200; When 600 is a convex surface, by setting the second grooves 430 on both sides of the support plate 200, the elastic stress on both sides of the support plate 200 pressing toward the display panel 100 can be reduced, and the pressure on both sides of the support plate 200 toward the display panel 100 can be reduced. The reaction force generated by the elastic stress in the direction on the middle part of the support plate 200 . This prevents the support plate 200 from pressing the display panel 100 , causing the encapsulation layer to break and causing defects such as abnormal display. And the second grooves 430 arranged in an array, compared with the through holes arranged in an array, weaken the self-strength of the support plate 200 less, and help to improve the strength of the support plate 200 while reducing the rebound force after bending. Strength of.

In some embodiments, as shown in FIGS. 16 to 17 , the second grooves 430 have a major axis a and a minor axis b perpendicular to each other, and along the length direction of the support plate 200 , the second grooves 430 are arranged along the minor axis b. In a row: along the width direction of the support plate 200 , the second grooves 430 are arranged in rows along the long axis a, and the second grooves 430 in two adjacent rows are arranged in a staggered position.

In this embodiment, two adjacent rows of second grooves 430 are distributed in dislocations, and the distribution of second grooves 430 in dislocations can make the structural mechanical properties of the formed grooves 400 more uniform, thereby facilitating the release of elastic stress. It should be noted here that when the second grooves 430 in two adjacent rows are arranged in a dislocation, the specific way of the dislocation arrangement is not limited, as long as the second grooves 430 in two adjacent rows are not completely aligned. Just right. Preferably, the minor axis b of one row of second grooves 430 is located between two adjacent row of second grooves 430 .

In some embodiments, as shown in Figure 6a, the connector 500 and the support plate 200 have a profiling structure, the two sides of the connector 500 are detachably connected to the support plate 200, and the middle part of the connector 500 is provided with a protrusion connected to the client. Starting part 510 .

In this embodiment, the connecting piece 500 and the support plate 200 have a profiling structure, that is, the shape of the side of the connecting piece 500 and the support plate 200 is the same, specifically, the side of the connecting piece 500 and the support plate 200 Both are arc-shaped, and the radians are the same. Both sides of the connecting piece 500 are detachably connected to the supporting plate 200, that is, the connecting piece 500 and the supporting plate 200 are fixed to each other to prevent the connecting piece 500 and the fixing plate from being separated from each other.

Specifically, when the light-emitting surface 600 is convex, the middle part of the support plate 200 bends toward the display panel 100, and the middle part of the support plate 200 generates an elastic stress away from the surface of the display panel 100, that is, the middle part of the support plate 200 generates an elastic stress toward the direction of the connector 500. pressure, and the connector 500 counteracts the pressure, preventing the middle part of the support plate 200 from moving away from the display panel 100 and avoiding the phenomenon that the middle part of the support plate 200 and the display panel 100 are peeled off from each other. When the light-emitting surface 600 is concave, the two sides of the support plate 200 are bent toward the direction of the display panel 100, and the elastic stress on both sides of the support plate 200 away from the direction of the surface of the display panel 100 is produced, that is, the two sides of the support plate 200 produce elastic stress in the direction of the connecting member 500. The connecting member 500 counteracts the pressure, preventing the two sides of the support plate 200 from moving away from the display panel 100 , and avoiding the phenomenon that both sides of the support plate 200 and the display panel 100 are peeled off from each other.

The middle part of the connecting piece 500 is provided with a raised portion 510 connected to the client, and the raised portion 510 is adapted to the installation position of the connecting piece 500 on the client, that is, the connecting piece 500 is installed on the client through the raised portion 510, further , components such as a controller, a circuit board, and a data interface may be provided on the protruding portion 510 for interacting with the client.

In some embodiments, as shown in Figure 6a and Figure 6b, first screw holes and bolts 520 in the first screw holes are provided on both sides of the connector 500, and the side of the support plate 200 close to the connector 500 is connected to the first screw hole. A second screw hole 530 is provided at a position corresponding to the hole, and the end of the bolt 520 is located in the second screw hole 530 for fixing the support plate 200 and the connecting piece 500 .

In this embodiment, the bolt 520 includes a head and a screw rod. A part of the screw rod is located in the first screw hole, and the other part of the screw rod is located in the second screw hole 530. The head is located on the side of the connecting piece 500 away from the support plate 200. An arc-shaped spacer 540 is arranged between 200 .

In some embodiments, as shown in FIG. 3 , a back film 700 is provided on the side of the display panel 100 facing the support plate 200 , and the thermally conductive glue 300 is disposed between the back film 700 and the support plate 200 .

In this embodiment, the back film 700 may be a transparent insulating material, such as polyester resin, for protecting and supporting the display panel 100 .

In some embodiments, as shown in FIG. 3 , a polarizer 800 , an optical adhesive layer 900 and a glass cover 1000 are sequentially disposed on the side of the light-emitting surface 600 of the display panel along a direction away from 100 .

The second aspect of the present application provides a display device, which includes the curved display module in any one of the embodiments of the first aspect above.

In this embodiment, in the curved display module used in the display device, the thermally conductive adhesive 300 is bonded between the display panel 100 and the support plate 200. On the one hand, the thermally conductive adhesive 300 fixes the display panel 100 and the support plate 200 to maintain support. The curved state of the board 200 , on the other hand, the heat conduction glue 300 acts as a heat conductor, and transmits the heat emitted by the display panel 100 to the support plate 200 through the heat conduction glue 300 , and dissipates the heat through the support plate 200 . The curved surface display module includes a reinforcement part, which is used to strengthen the connection between the support plate 200 and the display panel 100, that is, the reinforcement part is used to adapt the structure of the support plate 200 to the arc structure of the display panel 100, reducing the support The board 200 has a risk of peeling off from the display panel 100 due to elastic stress due to bending.

The reinforcing part is a groove 400 provided on the support plate 200 , and the groove 400 is used to reduce the thickness of the support plate 200 to reduce the elastic stress of the support plate 200 , thereby reducing the risk of peeling off the support plate 200 from the display panel 100 . The structure of the groove 400 can ensure the support strength of the support plate 200 while reducing the elastic stress.

Alternatively, the reinforcing part is a connecting piece 500 provided on the side of the support plate 200 facing away from the display panel 100. The connecting piece 500 is used to fix the support plate 200. elastic stress.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

Each embodiment in this specification is described in a related manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments.

The above are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application are included within the protection scope of this application.

Claims (12)

1. The utility model provides a curved surface display module assembly, its characterized in that, includes display panel and backup pad, display panel with be equipped with the heat conduction glue between the backup pad, display panel with the bonding surface of backup pad is the arc, curved surface display module assembly is including being used for strengthening the backup pad with the reinforcing part that display panel is connected, the reinforcing part is for locating recess in the backup pad or the reinforcing part is for locating the backup pad deviates from the connecting piece of display panel one side.

2. The curved display module set according to claim 1, wherein the recess is a first recess provided on the support plate and facing the display panel, and at least a portion of the first recess is filled with the heat-conductive adhesive.

3. The curved display module of claim 2, wherein the first recess is filled with EAA pads, and the heat conductive glue is filled between the EAA pads and the first recess.

4. The curved surface display module assembly according to claim 2, wherein the light emitting surface of the display panel is a convex surface, and the first groove is disposed in the middle of the support plate, or the first groove is disposed in the middle of the support plate and on both sides of the support plate;

the light-emitting surface of the display panel is a concave surface, and the first grooves are arranged on two sides of the supporting plate, or the first grooves are arranged on two sides and the middle of the supporting plate.

5. The curved surface display module assembly according to claim 4, wherein the first groove in the middle of the support plate has a size of 1/3-1/2 of the length of the support plate along the length direction of the support plate; along the width direction of the support plate, a first distance between the first groove and the side edge of the support plate is greater than 10mm.

6. The curved surface display module assembly of claim 4, wherein the first grooves on both sides of the support plate have a size of 1/5-1/4 of the size of the support plate along the length direction of the support plate, and a first distance between the first grooves and the sides of the support plate is greater than 10mm along the width direction of the support plate.

7. The curved display module set of claim 1, wherein the recess is a second recess arranged in a plurality of arrays on a side of the support plate facing away from the display panel.

8. The curved surface display module assembly according to claim 7, wherein the light emitting surface of the display panel is a convex surface, the second grooves arranged in an array are arranged in the middle of the support plate, or the second grooves arranged in an array are arranged in the middle of the support plate and on both sides of the support plate;

the light-emitting surface of the display panel is a concave surface, and the second grooves arranged in an array mode are arranged on two sides of the supporting plate, or the second grooves arranged in an array mode are arranged on two sides and the middle of the supporting plate.

9. The curved surface display module assembly of claim 7, wherein said second grooves have a major axis and a minor axis that are perpendicular to each other, said second grooves being aligned in a row along said minor axis along a length of said support plate; along the width direction of the supporting plate, the second grooves are arranged in rows along the long axis, and two adjacent rows of the second grooves are arranged in a staggered mode.

10. The curved surface display module assembly of claim 1, wherein the connecting piece and the supporting plate have profiling structures, two sides of the connecting piece are detachably connected with the supporting plate, and a protruding portion connected with the client is arranged in the middle of the connecting piece.

11. The curved surface display module set according to any one of claims 1-10, wherein a back film is provided on a side of the display panel facing the support plate, and the heat conductive adhesive is provided between the back film and the support plate.

12. A display device comprising the curved display module of any of claims 1-11.

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