Display module and display equipment

Abstract

The invention provides a display module and a display device. The display module comprises a plurality of display screens and a plurality of display modules, the supporting carrier plate is provided with a plurality of mounting parts, and the display screen and the mounting parts are at least partially overlapped in the thickness direction of the display screen; the elastic bonding piece is positioned between the back surface of the display screen and the corresponding mounting part; the stopping part is located between the back face of the display screen and the corresponding mounting part, and the thickness of the elastic bonding piece is larger than or equal to that of the stopping part in the thickness direction of the display screen. According to the scheme, the flatness of the display surface of the display module can be improved, and then the display effect is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] In recent years, the demands for the size and shape of display modules have become increasingly diverse. To meet the diverse demands, multiple display screens are usually spliced ​​together to obtain the required display module.

[0003] However, during the installation process of the display module, the display module has a problem of inconsistent flatness of the display surface. How to ensure the flatness of the display surface of the display module is the key to improving the display effect of the display module. Summary of the invention

[0004] The technical problem solved by the embodiments of the present invention is that the flatness of the display surface of the current display module is inconsistent, which affects the display effect.

[0005] To solve the above technical problems, an embodiment of the present invention provides a display module, comprising: a plurality of display screens; a supporting carrier having a plurality of mounting portions, wherein the display screens and the mounting portions at least partially overlap along the thickness direction of the display screens; an elastic adhesive component located between the back side of the display screens and the corresponding mounting portions; a stop portion located between the back side of the display screens and the corresponding mounting portions, wherein the thickness of the elastic adhesive component along the thickness direction of the display screens is greater than or equal to the thickness of the stop portion.

[0006] An embodiment of the present invention further provides a display device, comprising any one of the above display modules.

[0007] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0008] The display module includes a plurality of display screens and a supporting carrier. Along the thickness direction of the display screens, the display screens and the mounting parts at least partially overlap to achieve the installation of the display screens. An elastic adhesive and a stopper are arranged between the back of the display screen and the corresponding mounting part. Along the thickness direction of the display screen, the thickness of the elastic adhesive is greater than or equal to the thickness of the stopper. In this way, during the manufacturing process of the display module, when the plurality of display screens are pressed together, along the thickness direction of the display screens, the stopper can make the elastic adhesive stop when it is compressed to the same thickness as the stopper, that is, limit the maximum compression amount of the elastic adhesive. Therefore, along the thickness direction of the display screen, the height difference between adjacent display screens can be reduced, so that the overall thickness of the display module has better consistency, the flatness of the display surface of the display module is improved, the splicing quality of the display module is improved, and the display effect is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1is a cross-sectional view of a display module in an embodiment of the present invention;

[0010] Figure 2 yes Figure 1 Schematic diagram of the local structure at A in the middle;

[0011] Figure 3 is a cross-sectional view of another display module in an embodiment of the present invention;

[0012] Figure 4 is a cross-sectional view of another display module in an embodiment of the invention;

[0013] Figure 5 is a schematic diagram of the relative positions of an elastic adhesive member and a stopper in an embodiment of the present invention;

[0014] Figure 6 is a schematic diagram of the relative positions of another elastic adhesive member and a stopper in an embodiment of the present invention;

[0015] Figure 7 is a schematic diagram of the relative positions of another elastic adhesive member and a stopper in an embodiment of the present invention;

[0016] Figure 8 It is a schematic diagram of the structure of a display device in an embodiment of the present invention.

[0017] Reference numerals:

[0018] 100-display module; 10-display screen; 11-back of display screen; 12-3A film material; 13-transparent ink; 14-black matrix; 15-array substrate; 16-first area; 17-second area; 18-LED; 20-support carrier; 21-installation portion; 211-hollow mouth; 30-elastic adhesive; 40-stop portion; 41-protrusion; 50-heat spreader; 53-back of heat spreader; 60-second metal layer; 70-protective layer; 80-locking member. DETAILED DESCRIPTION

[0019] As described in the background technology, currently, multiple display screens are usually spliced ​​together to obtain a required display module. During the installation of the display module, double-sided tape is usually used to fix the display screen. Since the double-sided tape has a certain degree of softness, during the pressing process of the display screen, the pressing degree of the double-sided tape of adjacent display screens may be different, which leads to inconsistent flatness of the display surface of the display module.

[0020] To solve the above problem, in an embodiment of the present invention, an elastic adhesive and a stopper are provided between the back of the display screen and the corresponding mounting portion. Along the thickness direction of the display screen, the thickness of the elastic adhesive is greater than or equal to the thickness of the stopper. In this way, during the manufacturing process of the display module, when multiple display screens are pressed together, along the thickness direction of the display screen, the stopper can make the elastic adhesive stop when it is compressed to the same thickness as the stopper, that is, limit the maximum compression amount of the elastic adhesive. Therefore, along the thickness direction of the display screen, the height difference between adjacent display screens can be reduced, so that the overall thickness of the display module has better consistency, improves the flatness of the display surface of the display module, improves the splicing quality of the display module, and thus improves the display effect.

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0022] In order to make the above-mentioned purposes, features and beneficial effects of the embodiments of the present invention more obvious and understandable, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Figure 1 is a cross-sectional view of a display module in an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the local structure at A in the middle; Figure 3 is a cross-sectional view of another display module in an embodiment of the present invention. Figures 1 to 3 The specific structure of the display module is described.

[0024] In a specific implementation, the display module 100 includes: a plurality of display screens 10, a support carrier 20, an elastic adhesive member 30, and a stopper 40. The support carrier 20 has a plurality of mounting portions 21, and along the thickness direction x of the display screen 10, the display screen 10 and the mounting portion 21 at least partially overlap. The elastic adhesive member 30 is located between the back surface 11 of the display screen 10 and the corresponding mounting portion 21. The stopper 40 is located between the back surface 11 of the display screen 10 and the corresponding mounting portion 21, and along the thickness direction x of the display screen 10, the thickness of the elastic adhesive member 30 is greater than or equal to the thickness of the stopper 40.

[0025] With the above solution, since the thickness of the elastic adhesive member 30 is greater than or equal to the thickness of the stopper 40, when multiple display screens 10 are pressed together during the manufacturing process of the display module 100, the stopper 40 can stop the elastic adhesive member 30 from being compressed until the thickness is the same as the stopper 10 along the thickness direction x of the display screen 10, that is, limit the maximum compression amount of the elastic adhesive member 30. Therefore, along the thickness direction of the display screen 10, the height difference between adjacent display screens 10 can be reduced, so that the overall thickness of the display module 100 has better consistency, improve the flatness of the display surface of the display module 100 and improve the splicing quality of the display module 100, thereby improving the display effect of the display module 100.

[0026] In a specific implementation, along the thickness direction x of the display screen 10 , the display screen 10 , the mounting portion 21 and the elastic adhesive member 30 at least partially overlap. The display screen 10 can be mounted on the corresponding mounting portion 21 through the elastic adhesive member 30 .

[0027] In a specific implementation, the elastic adhesive member 30 can be double-sided adhesive, liquid adhesive, etc. Taking the elastic adhesive member 30 as double-sided adhesive as an example, one side of the double-sided adhesive is bonded to the display screen 10 , and the other side of the double-sided adhesive is bonded to the mounting portion 21 .

[0028] In a specific implementation, along the thickness direction x of the display screen 10 , the thickness of the elastic adhesive member 30 in the maximum compression state is less than or equal to the thickness of the stop portion 40 .

[0029] Along the thickness direction of the display screen 10, the thickness of the elastic adhesive 30 is N times the thickness of the stopper 40, where 1<N≤1.5. In this way, during the manufacturing process of the display module 100, after the elastic adhesive 30 is placed between the display screen 10 and the mounting portion 21, when the display screen 10 and the support carrier 20 are pressed together, the extra thickness of the elastic adhesive 30 over the stopper 40 can provide a relatively sufficient compression space to ensure the pressing effect and improve the reliability of the connection between the display screen 10 and the mounting portion 21. On the other hand, along the thickness direction of the display screen 10, when the elastic adhesive 30 is compressed to the same thickness as the stopper 40, the stopper 40 can prevent the elastic adhesive 30 from continuing to be compressed, thereby ensuring the effectiveness of the stopper 40.

[0030] In some non-limiting embodiments, 1<N≤1.2.

[0031] In some embodiments, the elastic adhesive member 30 and the stopper 40 do not overlap along the thickness direction x of the display screen 10. The elastic adhesive member 30 and the stopper 40 are relatively independently arranged to avoid mutual interference. During the lamination process of multiple display screens 10, by reasonably controlling the thickness of the stopper 40 along the thickness direction x of the display screen 10, the compression thickness deviation of the elastic adhesive member 30 corresponding to the adjacent display screens 10 can be effectively reduced, and the flatness of the display surface of the display module 100 obtained after lamination can be further improved.

[0032] In some embodiments, a vapor chamber 50 is disposed on the back 11 of the display screen. The vapor chamber 50 is disposed on the back 11 of the display screen. On the one hand, the vapor chamber 50 plays a role in heat conduction and heat dissipation to prevent local overheating during the light-emitting process of the display screen 10. On the other hand, the vapor chamber 50 can strengthen the strength of some components (such as thin film transistor array glass) in the display screen 10 to a certain extent to prevent cracking during the splicing process.

[0033] In a specific implementation, the heat spreader 50 may include a heat spreader glue layer and a first metal layer, and the heat spreader glue layer is located between the back side 11 of the display screen and the first metal layer.

[0034] In some embodiments, the heat spreader layer may be copper glue, etc. While adhering the first metal layer to the back surface 11 of the display screen 10, the heat spreader layer may also transfer the heat emitted by some components inside the display screen 10 to the first metal layer, thereby improving the heat dissipation effect.

[0035] In some embodiments, the first metal layer 52 may be an aluminum plate, a stainless steel plate, a copper plate, or the like.

[0036] In some embodiments, the stopper 40 includes a protrusion 41 , and the protrusion 41 is disposed on a side surface of the vapor chamber 50 .

[0037] In some non-limiting embodiments, the protrusions 41 are disposed on a suitable surface such as the side or back of the vapor chamber 50. The specific location of the protrusions 41 can be configured according to factors such as the location of the display screen 10 in the display module 100 and the assembly relationship with the support carrier 20.

[0038] In some non-limiting embodiments, the vapor chamber 50 includes a first metal layer, and the protrusions 41 are disposed on the first metal layer.

[0039] In a specific implementation, the stop portion 40 may include one or more protrusions 41. The protrusions 41 may be in a columnar, hemispherical, cubic, square, or conical shape. It is understood that the protrusions 41 may also be in other irregular shapes.

[0040] In some embodiments, when there are multiple protrusions 41 , the multiple protrusions 41 are relatively independent.

[0041] In some embodiments, a stamping process can be used to form the protrusion 41 on the heat spreader 50. The protrusion 41 obtained in this way has high production efficiency, is suitable for large-scale production, and has low cost. It should be pointed out that the drawings given in the embodiments of the present invention are illustrated by taking the protrusion 41 obtained by the stamping process as an example.

[0042] In other embodiments, the protrusions 41 may be directly formed on the heat spreader 50 by using a metal stamping process, laser printing, or the like.

[0043] In some non-limiting embodiments, the protrusion 41 protrudes from the back side 53 of the vapor chamber, and the back side 53 of the vapor chamber is the side facing the supporting carrier 20 .

[0044] In a specific implementation, the elastic adhesive member 30 and the stopper 40 have various layouts. The layout of the elastic adhesive member 30 and the stopper 40 is described below by taking the stopper 40 as a protrusion 41 as an example.

[0045] In some embodiments, in combination Figure 5 and Figure 6 , the elastic adhesive member 30 is located in the first area 16 of the back side 53 of the heat spreader, and the protrusion 41 is located in the second area 17 of the back side 53 of the heat spreader, and along the thickness direction x of the display screen 10, the first area 16 and the second area 17 do not overlap. In this way, the relative independence of the layout areas of the elastic adhesive member 30 and the protrusion 41 can be ensured to avoid mutual interference between the two.

[0046] In some non-limiting embodiments, reference Figure 1 and Figure 5 , the first area 16 is located at the periphery of the second area 17 . That is, the elastic adhesive member 30 is located at the periphery of the stop portion 40 and surrounds the stop portion 40 .

[0047] In other non-limiting embodiments, referring to Figure 6 , the second area 17 is located at the periphery of the first area 16 . That is, the stop portion 40 is located at the periphery of the elastic adhesive member 30 and surrounds the elastic adhesive member 30 .

[0048] The first region 16 may be disposed continuously along the back side 53 of the vapor chamber. For example, the first region 16 is disposed around the edge of the back side 53 of the vapor chamber. That is, a circle of elastic adhesive 30 is disposed around the back side 53 of the vapor chamber. Alternatively, the first region 16 is disposed discontinuously along the back side 53 of the vapor chamber.

[0049] The second region 17 may be disposed continuously along the back side 53 of the vapor chamber. For example, the second region 17 is disposed around the edge of the back side 53 of the vapor chamber. That is, a circle of protrusions 41 is disposed around the back side 53 of the vapor chamber. Alternatively, the second region 17 is disposed discontinuously along the back side 53 of the vapor chamber.

[0050] The elastic adhesive component 30 may be distributed over the entire first area 16 , or may be disposed in a partial area of ​​the first area 16 .

[0051] The stop portion 40 may be disposed in the entire second area 17 , or may be disposed in a partial area of ​​the second area 17 .

[0052] In some other implementations, reference Figure 3 and Figure 7 , the protrusions 41 and the elastic adhesive members 30 are alternately arranged in a plane direction parallel to the heat spreader 50. In this way, while improving the flatness of the display surface of the display module 100, the space occupied by the protrusions 41 and the elastic adhesive members 30 on the back 11 of the display screen can be saved.

[0053] In some embodiments, taking the back of the vapor chamber 50 as a rectangular or square shape as an example, protrusions 41 may be provided at least at the four corners of the back of the vapor chamber 53. Further, at least protrusions 41 are provided on the long side of the back of the vapor chamber 50, and protrusions 41 are provided on the short side of the back of the vapor chamber 50, so that during the lamination process, the protrusions 41 limit the maximum compression of the elastic adhesive 30 at multiple locations to ensure overall flatness.

[0054] It should be noted that Figures 5 to 7 The numbers of the protrusions 41 and the elastic adhesive members 30 shown in the figure are only illustrative examples for ease of understanding and do not limit the protection scope of the present invention. In practice, other numbers can be configured according to needs.

[0055] In a specific implementation, the display module 100 further includes a second metal layer (also referred to as a back metal layer) 60 disposed between the heat spreader 50 and the back surface 11 of the display screen, and a protective layer (also referred to as a back protective layer) 70 covering the second metal layer 60. The protective layer 70 covers the second metal layer 60 to prevent the second metal layer 60 from being exposed.

[0056] In some embodiments, the stopper 40 is disposed on the mounting portion 21. The structure of the stopper 40 disposed on the mounting portion 21 is similar to that of the stopper 40 disposed on the heat spreader 30. For details, please refer to the specific description of the stopper 40 in the above embodiment, which will not be repeated here.

[0057] In some embodiments, in combination Figure 1 , Figure 2 and Figure 4The display module 100 may further include a locking member 80, which is connected to the back surface 11 of the display screen and the corresponding mounting portion 21. The locking member 80 may pull the back surface 11 of the display screen and the corresponding mounting portion 21 along the thickness direction x of the display screen 10. After the elastic adhesive member 30 is pressed, the locking member 80 is connected to the back surface 11 of the display screen and the corresponding mounting portion 21. The locking member 80 may pull the back surface 11 of the display screen to prevent the elastic adhesive member 30 from rebounding, thereby preventing the undulation of the multiple display screens 10 caused by the rebound of the elastic adhesive member 30, and further improving the flatness of the display surface of the display module 100.

[0058] In some embodiments, the locking member 80 may be a tape, one end of which is adhered to the back surface 11 of the display screen, and the other end of which is adhered to the corresponding mounting portion 21.

[0059] In other embodiments, the locking member 80 may be a spring hook. The back side 11 of the display screen and the corresponding mounting portion 21 are respectively provided with a hooking portion, one end of the spring hook is hooked to the hooking portion on the back side 11 of the display screen, and the other end of the spring hook is hooked to the hooking portion on the corresponding mounting portion 21.

[0060] It is understandable that the locking member 80 may also be other components with a locking function, which are not listed one by one here.

[0061] In a specific implementation, the mounting portion 21 has a hollow opening 211, and along the thickness direction x of the display screen, the hollow opening 211 at least partially overlaps with the display screen 10. The hollow portion 211 can expose at least a portion of the back surface 11 of the display screen to improve the heat dissipation effect. In addition, the hollow portion 211 can also provide a certain assembly space, which is convenient for the assembly of some components (such as the locking member 80, etc.), and improves the convenience of installation.

[0062] In a specific implementation, in order to ensure the display effect of the display module 100, the display screen 10 can be a borderless display screen, so as to minimize the size of the non-display area between the display areas of adjacent display screens 10 and improve the display effect. It can be understood that the display screen 10 can also be a display screen with a border smaller than a set value, that is, a display screen with a narrow border display effect.

[0063] In a specific implementation, the specific structure of the display screen 10 is different according to the type of the display screen 10. In a typical application scenario, the display screen 10 may specifically include: 3A film material 12, encapsulation layer 13, black matrix (Black Matrix, BM) 14, array substrate (Thin Film Transistor Array glass) 15, light emitting diode (Light Emitting Diode, LED) 18, etc., wherein the 3A film material 12, transparent ink 13, black matrix 14, array substrate 15 are arranged in sequence from the display surface to the back of the display module 100. The encapsulation layer 13 is located above the black matrix 14, and the black matrix 14 and LED18 are arranged at intervals. It should be noted that the color of LED18 in the figure can be configured according to actual needs, and the color of LED18 can be blue, red, green, etc.

[0064] The "3A" in the 3A film material 12 generally refers to a combination of three functions: anti-glare (AG), anti-reflection (AR) and anti-fingerprint (AF) to enhance the user's visual experience and operational convenience.

[0065] The encapsulation layer 13 can reduce or even prevent the LED light emitting diode 18 from being affected by water vapor and thus causing failure, thereby ensuring the reliability of the display screen 10. The black matrix 14 can prevent light leakage from the screen and improve the display effect.

[0066] The array substrate 15 is a basic driving circuit element of the display module 100 , and is an important part of the display module 100 .

[0067] The embodiment of the present invention further provides a display device, Figure 8 The display device includes any one of the above display modules 100. For the specific structure of the display module 100, please refer to the description in the above embodiment, which will not be repeated here.

[0068] In a specific implementation, the specific type of the display device is not limited, and it can be a mobile phone, a tablet computer, a television, a monitor, etc.

[0069] In the specification of this application, each embodiment is described in a progressive, parallel, or progressive and parallel manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The implementation methods provided in the embodiments of this application can be combined with each other if there is no contradiction.

[0070] It should be noted that in the description of the present application, it should be understood that the description of the drawings and embodiments is illustrative rather than restrictive. The same reference numerals throughout the embodiments of the specification identify the same structure. In addition, for the sake of understanding and ease of description, the drawings may exaggerate the thickness of some layers, films, panels, regions, etc. It is also understood that when an element such as a layer, film, region, or substrate is referred to as "on" another element, the element may be directly on the other element or there may be an intermediate element. In addition, "on" refers to positioning an element on or below another element, but does not essentially refer to positioning on the upper side of another element according to the direction of gravity.

[0071] The terms "upper", "lower", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a centrally arranged component at the same time.

[0072] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0073] The above description of the disclosed embodiments enables professionals in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals in the field, and the general principles defined herein can be modified and implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein, and the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A display module, characterized in that: include: Multiple displays; A supporting carrier having a plurality of mounting portions, wherein along a thickness direction of the display screen, the display screen and the mounting portions at least partially overlap; An elastic adhesive member, located between the back side of the display screen and the corresponding mounting portion; The stop portion is located between the back of the display screen and the corresponding mounting portion. Along the thickness direction of the display screen, the thickness of the elastic adhesive component is greater than or equal to the thickness of the stop portion.

2. The display module according to claim 1, wherein: Along the thickness direction of the display screen, the thickness of the elastic adhesive component in the maximum compression state is less than or equal to the thickness of the stop portion.

3. The display module according to claim 2, wherein: Along the thickness direction of the display screen, the thickness of the elastic adhesive component is N times the thickness of the stop portion, wherein 1<N≤1.

5.

4. The display module according to claim 1, wherein: Along the thickness direction of the display screen, the elastic adhesive component and the stop portion do not overlap.

5. The display module according to any one of claims 1 to 4, characterized in that: A heat spreader is disposed on the back of the display screen, and the stop portion includes a protrusion disposed on one side surface of the heat spreader.

6. The display module according to claim 5, characterized in that: The protrusion protrudes from the back side of the heat spreader, and the back side of the heat spreader is the surface facing the supporting carrier.

7. The display module according to claim 5, characterized in that: The elastic adhesive is located in a first area on the back side of the vapor chamber, the protrusion is located in a second area on the back side of the vapor chamber, and along the thickness direction of the display screen, the first area does not overlap with the second area.

8. The display module according to claim 5, wherein: Along a plane direction parallel to the vapor chamber, the protrusions and the elastic adhesive members are arranged alternately and at intervals.

9. The display module according to claim 5, characterized in that: The heat spreader includes a heat spreader glue layer and a first metal layer. The heat spreader glue layer is located between the back side of the display screen and the first metal layer. The protrusion is arranged on the first metal layer.

10. The display module according to claim 5, wherein: The device also includes a second metal layer disposed between the heat sink and the back of the display screen, and a protective layer covering the second metal layer.

11. The display module according to claim 5, characterized in that: There are multiple protrusions, and the multiple protrusions are relatively independent.

12. The display module according to any one of claims 1 to 4, characterized in that: The stop portion is arranged on the mounting portion.

13. The display module according to claim 1, wherein: Also includes: A locking piece is connected to the back side of the display screen and a corresponding mounting portion.

14. The display module according to claim 1, wherein: The mounting portion has a hollow opening, and along the thickness direction of the display screen, the hollow opening at least partially overlaps with the display screen.

15. A display device, characterized in that: Comprising a display module as described in any one of claims 1 to 14.

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