Display module and mobile terminal

Abstract

The embodiments of the present application provide a display module and a mobile terminal; the display module comprises a back plate, a display panel, a circuit board assembly and a protection part; the circuit board assembly comprises a first surface and a second surface which are arranged opposite to each other; the protection part extends to the second surface of the circuit board assembly from the first surface of the circuit board assembly; the protection part covers the circuit board assembly; the protection part and the circuit board assembly are fixedly connected by means of screws.

Description

Display modules and mobile terminals

[0001] This application claims priority to Chinese patent application No. 202410009618.8 filed on January 3, 2024, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the field of display technology, and specifically relates to display modules and mobile terminals. Background Art

[0003] In existing display devices, especially notebook computers (NB), the two ends of the flexible circuit board are respectively bound to the display panel and the printed circuit board, and the outside of the flexible circuit board is covered with edge glue with a shielding function;

[0004] At present, the main methods for fixing the printed circuit board and the backlight module are screw locking and tape sticking. In order to ensure that the flexible circuit board is not pulled or torn during the assembly and mechanical testing of the display device, other parts of the flexible circuit board are not fixed except for the binding part. As a result, when the part where the flexible circuit board is located is pressed, the position of the flexible circuit board is easily deformed, resulting in abnormal noise, which affects the user experience. SUMMARY OF THE INVENTION

[0005] The embodiments of the present application provide a display module and a mobile terminal, which aim to solve the problem that the position of a flexible circuit board is easily deformed and abnormal sounds are generated.

[0006] In a first aspect, an embodiment of the present application provides a display module, comprising:

[0007] Back panel;

[0008] A display panel is provided on one side of the back panel;

[0009] a circuit board assembly, the circuit board assembly being spaced apart from the display panel along a first direction, the circuit board assembly being electrically connected to the display panel, and the circuit board assembly comprising a first surface and a second surface oppositely disposed;

[0010] a protection portion extending from the first surface of the circuit board assembly to the second surface of the circuit board assembly, the protection portion covering the circuit board assembly;

[0011] Wherein, the protection portion and the circuit board assembly are fixedly connected by screws.

[0012] In a second aspect, an embodiment of the present application further provides a mobile terminal, comprising a terminal body and any one of the display panels described above; wherein the terminal body and the display panel are combined into one.

[0013] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a display module and a mobile terminal, wherein the display module includes a back panel, a display panel, a circuit board assembly and a protective portion; the protective portion is arranged to extend from the first surface of the circuit board assembly to the second surface of the circuit board assembly, the protective portion covers the circuit board assembly, and the protective portion and the circuit board assembly are fixedly connected by screws, thereby protecting the circuit board assembly through the protective portion, thereby improving the service life and reliability of the circuit board assembly; at the same time, when the part where the circuit board assembly is located is pressed, the protective portion can avoid the abnormal sound problem that occurs in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0015] FIG1 is a schematic diagram of a top view of a display module provided in an embodiment of the present application;

[0016] FIG2 is a schematic top view of a first cross-section of a display module provided in an embodiment of the present application;

[0017] Figure 3 is an enlarged view of point A in Figure 2;

[0018] FIG4 is a second schematic cross-sectional top view of a display module provided in an embodiment of the present application;

[0019] FIG5 is an enlarged view of point B in FIG4 . Modes for Carrying Out the Invention

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the actual use or working mode of the device, specifically the direction of the drawings in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only, and features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed or detachable connections; mechanical or electrical connections; or communication between them; direct or indirect connections through an intermediate medium; and can refer to internal connectivity between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0023] In addition, in this application, the term "co-layer arrangement" refers to two layers, components, members, elements, or parts that can be formed by the same manufacturing process (e.g., patterning process, etc.), and the two layers, components, members, elements, or parts are generally formed from the same material. For example, co-layer arrangement of two or more functional layers means that these co-layered functional layers can be formed using the same material layer and the same manufacturing process, thereby simplifying the manufacturing process of the display substrate.

[0024] The disclosure below provides many different embodiments for realizing the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present application. In addition, the examples of various specific processes and materials provided in the present application, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0025] The embodiments of the present application provide a display module and a mobile terminal. Detailed descriptions are provided below. It should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments.

[0026] Please refer to Figures 1, 2 and 3; Figure 1 is a schematic diagram of the top structure of the display module provided in an embodiment of the present application; Figure 2 is a schematic diagram of the first cross-section top view of the display module provided in an embodiment of the present application; Figure 3 is an enlarged view of point A in Figure 2.

[0027] This embodiment provides a display module 1, which includes a backplate 11, a display panel 20, a circuit board assembly 30 and a protective portion 40. The display panel 20 is arranged on one side of the backplate 11, and the circuit board assembly 30 and the display panel 20 are spaced apart along a first direction X. The circuit board assembly 30 is electrically connected to the display panel 20. The circuit board assembly 30 includes a first surface 31A and a second surface 31B arranged opposite to each other. The protective portion 40 extends from the first surface 31A of the circuit board assembly 30 to the second surface 31B of the circuit board assembly 30. The protective portion 40 covers the circuit board assembly 30, and the protective portion 40 and the circuit board assembly 30 are fixedly connected by screws 50.

[0028] It should be noted that in existing display devices, especially notebook computers (NB), the two ends of the flexible circuit board are respectively bound to the display panel and the printed circuit board, and the outside of the flexible circuit board is covered with edge glue with a shielding function; in order to ensure that the flexible circuit board is not pulled or torn during the assembly and mechanical testing of the display device, except for the binding part of the flexible circuit board, other parts of the flexible circuit board are not fixed, resulting in the position of the flexible circuit board being easily deformed when the part where the flexible circuit board is located is pressed, resulting in abnormal noise, which affects the user experience.

[0029] It can be understood that in this embodiment, the protective portion 40 extends from the first surface 31A of the circuit board assembly 30 to the second surface 31B of the circuit board assembly 30, and the protective portion 40 covers the circuit board assembly 30. The protective portion 40 and the circuit board assembly 30 are fixedly connected by screws 50, so that the circuit board assembly 30 is protected by the protective portion 40, thereby improving the service life and reliability of the circuit board assembly 30. At the same time, when the part where the circuit board assembly 30 is located is pressed, the protective portion 40 can avoid the abnormal sound problem that occurs in the prior art.

[0030] Optionally, in one embodiment, the protection portion includes a first sub-portion, a second sub-portion, and a third sub-portion, and the third sub-portion connects the first sub-portion and the second sub-portion;

[0031] Among them, the first sub-section is located on the first surface, and the first sub-section is spaced apart from the first surface, the second sub-section is located on the second surface, and the second sub-section is spaced apart from the second surface, and the third sub-section is located on the side of the circuit board assembly away from the display panel, and the third sub-section is spaced apart from the circuit board assembly.

[0032] Optionally, in one embodiment, the first sub-part is provided with a threaded hole, the second sub-part is provided with a first through hole, and the circuit board assembly is provided with a second through hole, and the first through hole, the second through hole and the threaded hole are arranged correspondingly; the screw passes through the first through hole and the second through hole, and the screw is threadedly connected to the threaded hole.

[0033] Optionally, in one embodiment, the circuit board assembly includes a printed circuit board and a flexible circuit board, the printed circuit board and the display panel are spaced apart along the first direction, one end of the flexible circuit board is connected to the display panel, and the other end of the flexible circuit board is connected to the printed circuit board;

[0034] At least a portion of the flexible circuit board is disposed between the printed circuit board and the first sub-section, and the first through hole passes through the printed circuit board and the flexible circuit board.

[0035] Optionally, in one embodiment, a first binding end is provided on a side of the display panel close to the printed circuit board, and a second binding end is provided on a side of the printed circuit board close to the display panel;

[0036] The flexible circuit board includes a first portion connected to the first binding end, a second portion connected to the second binding end, and a third portion located between the first portion and the second portion;

[0037] The printed circuit board includes the first surface and the second surface, at least a portion of the third portion is located on the first surface, and the first through hole passes through the third portion.

[0038] Optionally, in one embodiment, the display panel further includes an edge tape, the edge tape extending from an edge of the display panel away from the back plate to a side of the back plate away from the display panel, the edge tape covering the printed circuit board and the flexible circuit board;

[0039] Among them, at least part of the edging tape is located between the circuit board assembly and the protective part, and the edging tape is provided with a third through hole and a fourth through hole, the third through hole is arranged corresponding to the first through hole, and the fourth through hole is arranged corresponding to the threaded hole, the screw passes through the first through hole, the third through hole, the second through hole and the fourth through hole, and the screw is threadedly connected to the threaded hole.

[0040] Optionally, in one embodiment, the display panel further comprises an edge tape, wherein a first end of the edge tape is connected to an edge of the display panel, a second end of the edge tape extends from the edge of the display panel toward the first sub-portion, and the second end of the edge tape is connected to a side of the first sub-portion away from the printed circuit board;

[0041] The orthographic projection of the edge tape on the display panel covers the first binding end, and the orthographic projection of the first sub-part on the printed circuit board covers the second binding end.

[0042] Optionally, in one embodiment, the display panel includes an auxiliary tape, and the auxiliary tape is provided between the second sub-portion of the protection portion and the printed circuit board;

[0043] The auxiliary tape is connected to the second sub-portion of the protection portion, and the orthographic projection of the auxiliary tape on the printed circuit board covers at least a portion of the orthographic projection of the flexible circuit board on the printed circuit board.

[0044] Optionally, in one embodiment, the back plate further comprises a tongue, the tongue being disposed on a side of the back plate away from the display panel, the tongue extending from the back plate toward the printed circuit board, and at least a portion of the tongue being located between the printed circuit board and the protective portion;

[0045] The second surface of the printed circuit board is provided on the tongue piece, the tongue piece is provided with a fifth through hole, the fifth through hole is provided corresponding to the first through hole, the screw passes through the first through hole, the fifth through hole and the second through hole, and the screw is threadedly connected to the threaded hole.

[0046] 1 and 2 , in one embodiment, the display module 1 includes a backlight module 10, a display panel 20, a circuit board assembly 30, and a protective portion 40. The display panel 20 includes, but is not limited to, an organic light emitting diode (OLED) display panel and a liquid crystal display (LCD) panel, and this embodiment does not impose any specific restrictions on this. In this embodiment, the technical solution of the present application is illustrated by taking the display panel 20 as a liquid crystal display panel and the first direction as the X direction as an example.

[0047] The backlight module 10 includes a backplane 11, the display panel 20 is located on one side of the backplane 11, and the display panel 20 is located on the light-emitting side of the backlight module 10; the display panel 20 includes a first substrate and a second substrate arranged opposite to each other, and the second substrate is located on the side of the first substrate away from the backplane 11; specifically, the first substrate can be an array substrate, and the second substrate can be a color film substrate.

[0048] In one embodiment, as shown in Figures 2 and 3, the protective portion 40 includes a first sub-portion 41, a second sub-portion 42 and a third sub-portion 43, and the third sub-portion 43 connects the first sub-portion 41 and the second sub-portion 42; wherein, the first sub-portion 41 is located on the first surface 31A, and the first sub-portion 41 is spaced apart from the first surface 31A, the second sub-portion 42 is located on the second surface 31B, and the second sub-portion 42 is spaced apart from the second surface 31B, and the third sub-portion 43 is located on the side of the circuit board assembly 30 away from the display panel 20, and the third sub-portion 43 is spaced apart from the circuit board assembly 30.

[0049] Specifically, the first sub-portion 41, the second sub-portion 42 and the third sub-portion 43 enclose a accommodating cavity 40A, and the circuit board assembly 30 is located in the accommodating cavity 40A, wherein, in the direction perpendicular to the display panel 20, the orthographic projection of the first sub-portion 41 covers at least part of the orthographic projection of the circuit board assembly 30, and the orthographic projection of the second sub-portion 42 covers at least part of the orthographic projection of the circuit board assembly 30, so that the protective portion 40 covers the circuit board assembly 30 to protect it.

[0050] It can be understood that in this embodiment, by setting the first sub-portion 41 to be spaced apart from the first surface 31A, a reserved space is set between the first sub-portion 41 and the circuit board assembly 30, and then when the circuit board assembly 30 is subjected to pressure in the direction along the first surface 31A pointing to the second surface 31B, the first sub-portion 41 can prevent the circuit board assembly 30 from being directly subjected to force; by setting the second sub-portion 42 to be spaced apart from the second surface 31B, and then when the circuit board assembly 30 is subjected to pressure in the direction along the second surface 31B pointing to the first surface 31A, the second sub-portion 42 can prevent the circuit board assembly 30 from being directly subjected to force; by setting the third sub-portion 43 to be spaced apart from the circuit board assembly 30, and then when the circuit board assembly 30 is subjected to pressure in the direction along the circuit board assembly 30 pointing to the display panel 20, the third sub-portion 43 can prevent the circuit board assembly 30 from being directly subjected to force, and the reserved space can play a buffering role, thereby improving the protective effect of the protective portion 40 and avoiding the abnormal sound problem caused by the prior art.

[0051] Please continue to refer to Figures 1, 2 and 3. In one embodiment, the first sub-part 41 is provided with a threaded hole 41A, the second sub-part 42 is provided with a first through hole 42A, and the circuit board assembly 30 is provided with a second through hole 30A. The first through hole 42A, the second through hole 30A and the threaded hole 41A are correspondingly arranged; the screw 50 passes through the first through hole 42A and the second through hole 30A, and the screw 50 is threadedly connected to the threaded hole 41A, so that the connection method between the protective part 40 and the circuit board assembly 30 is simple and convenient to operate.

[0052] Furthermore, the circuit board assembly 30 includes a printed circuit board 31 and a flexible circuit board 32, one end of the flexible circuit board 32 is connected to the display panel 20, and the other end of the flexible circuit board 32 is connected to the printed circuit board 31; wherein, at least part of the flexible circuit board 32 is arranged between the printed circuit board 31 and the first sub-section 41, and the first through hole 42A passes through the printed circuit board 31 and the flexible circuit board 32.

[0053] Specifically, the printed circuit board 31 includes a first surface 31A and a second surface 31B. The first surface 31A can serve as the front side of the printed circuit board 31 (for example, the side facing upward), and the second surface 31B can serve as the back side of the printed circuit board 31 (for example, the side facing downward).

[0054] Optionally, the display panel 20 includes a third surface 20A away from the back panel 11, the first surface 31A and the second surface 31B are arranged parallel to the third surface 20A, and the first surface 31A is arranged close to the third surface 20A; one end of the flexible circuit board 32 is connected to the third surface 20A of the display panel 20, and the other end of the flexible circuit board 32 is connected to the first surface 31A of the printed circuit board 31 to achieve electrical connection between the display panel 20 and the printed circuit board 31.

[0055] In one embodiment, the display panel 20 is provided with a first binding end 21 on a side close to the printed circuit board 31, and the printed circuit board 31 is provided with a second binding end 311 on a side close to the display panel 20; the flexible circuit board 32 includes a first portion 321 connected to the first binding end 21, a second portion 322 connected to the second binding end 311, and a third portion 323 located between the first portion 321 and the second portion 322, wherein at least a portion of the third portion 323 is located on the first surface 31A, and the first through hole 42A passes through the third portion 323.

[0056] Specifically, the first binding end 21 is provided on the third surface 20A of the display panel 20, the second binding segment is provided on the first surface 31A of the printed circuit board 31, and the first part 321, the second part 322 and the third part 323 of the flexible circuit board 32 are continuous structures, and the three are divided only according to their different positions.

[0057] It can be understood that in this embodiment, at least part of the third part 323 is located on the first surface 31A, thereby increasing the contact area between the flexible circuit board 32 and the printed circuit board 31 and improving the connection effect between the flexible circuit board 32 and the printed circuit board 31; at the same time, the first through hole 42A passes through the third part 323, that is, the third part 323 and the flexible circuit board 32 can be fixed by screws 50, further improving the connection effect between the flexible circuit board 32 and the printed circuit board 31, and avoiding the arching phenomenon of the unbound part of the existing flexible circuit board 32, thereby improving the abnormal noise problem at the position of the flexible circuit board 32.

[0058] Please continue with reference to Figures 1, 2 and 3. In one embodiment, the display panel 20 further includes an edge tape 60, which can be used to cover and protect the frame area of ​​the display module 1. The edge tape 60 extends from the edge of the display panel 20 away from the back plate 11 to the side of the back plate 11 away from the display panel 20. The edge tape 60 covers the printed circuit board 31 and the flexible circuit board 32; wherein, at least a portion of the edge tape 60 is located between the circuit board assembly 30 and the protective portion 40, and the edge tape 60 is provided with a third through hole 60A and a fourth through hole 60B, wherein the third through hole 60A is arranged corresponding to the first through hole 42A, and the fourth through hole 60B is arranged corresponding to the threaded hole 41A; wherein the screw 50 passes through the first through hole 42A, the third through hole 60A, the second through hole 30A and the fourth through hole 60B, and the screw 50 is threadedly connected to the threaded hole 41A.

[0059] It can be understood that this embodiment uses the screws 50 to ensure the stability of the connection between the flexible circuit board 32, the printed circuit board 31, the edging tape 60 and the protective part 40, further improving the connection effect between the circuit board assembly 30 and the edging tape 60, and the connection effect between the protective part 40 and the edging tape 60, thereby improving the stability of the circuit board assembly 30 and avoiding the abnormal noise problem caused by the prior art.

[0060] Optionally, in one embodiment, the edge tape 60 is in direct contact with the flexible circuit board 32, and in the direction perpendicular to the display panel 20, the orthographic projection of the edge tape 60 covers the orthographic projection of the flexible circuit board 32, thereby reducing the gap between the flexible circuit board 32 and the edge tape 60, and thus when the part where the flexible circuit board 32 is located is pressed, the abnormal sound problem that occurs in the prior art can be avoided.

[0061] Further, please continue to refer to Figures 1, 2 and 3. In one embodiment, the back plate 11 also includes a tongue 111, which is provided on the side of the back plate 11 away from the display panel 20. The tongue 111 extends from the back plate 11 in a direction close to the printed circuit board 31, and at least part of the tongue 111 is located between the printed circuit board 31 and the protective portion 40; wherein, the second surface 31B of the printed circuit board 31 is provided on the tongue 111, and the tongue 111 is provided with a fifth through hole 111A, and the fifth through hole 111A is provided corresponding to the first through hole 42A. The screw 50 passes through the first through hole 42A, the fifth through hole 111A and the second through hole 30A, and the screw 50 is threadedly connected to the threaded hole 41A.

[0062] Specifically, the edging tape 60 is located on the side of the tongue 111 away from the printed circuit board 31, and the edging tape 60 is in direct contact with the side of the tongue 111 away from the printed circuit board 31. The screw 50 passes through the first through hole 42A, the third through hole 60A, the fifth through hole 111A, the second through hole 30A and the fourth through hole 60B, and the screw 50 is threadedly connected to the threaded hole 41A.

[0063] It can be understood that this embodiment uses the screws 50 to ensure the stability of the connection between the flexible circuit board 32, the printed circuit board 31, the edging tape 60, the protective part 40 and the backlight module 10, further improving the connection effect between the circuit board assembly 30 and the backlight module 10, and the connection effect between the protective part 40 and the backlight module 10, thereby improving the stability of the circuit board assembly 30 and avoiding the abnormal sound problem caused by the prior art.

[0064] Further, please refer to Figures 1, 4 and 5; Figure 4 is a second cross-sectional top view schematic diagram of the display module provided in an embodiment of the present application; and Figure 5 is an enlarged view of point B in Figure 4.

[0065] In one embodiment, the display panel 20 further includes an edge tape 60, wherein a first end of the edge tape 60 is connected to an edge of the display panel 20, a second end of the edge tape 60 extends from the edge of the display panel 20 toward the first sub-section 41, and the second end of the edge tape 60 is connected to a side of the first sub-section 41 away from the printed circuit board 31; wherein the orthographic projection of the edge tape 60 on the display panel 20 covers the first binding end 21, and the orthographic projection of the first sub-section 41 on the printed circuit board 31 covers the second binding end 311.

[0066] Specifically, the first end of the edging tape 60 is connected to the edge of the third surface 20A of the display panel 20, the second end of the edging tape 60 extends from the third surface 20A of the display panel 20 toward the first sub-portion 41 close to the protective portion 40, and the second end of the edging tape 60 is connected to the side of the first sub-portion 41 away from the printed circuit board 31.

[0067] It can be understood that in this embodiment, the orthographic projection of the edging tape 60 on the display panel 20 covers the first binding end 21, and the orthographic projection of the first sub-portion 41 on the printed circuit board 31 covers the second binding end 311, thereby achieving a shielding effect on the flexible circuit board 32 and the printed circuit board 31, and the edging tape 60 is only provided on the first surface 31A of the circuit board assembly 30, thereby achieving thinning of the display module 1.

[0068] In one embodiment, the tongue 111 is provided on a side of the back plate 11 away from the edging tape 60, and the tongue 111 extends from the back plate 11 toward the printed circuit board 31, and at least a portion of the tongue 111 is located between the printed circuit board 31 and the protective portion 40; wherein, the second surface 31B of the printed circuit board 31 is provided on the tongue 111, and the tongue 111 is provided with a fifth through hole 111A, and the fifth through hole 111A is provided corresponding to the first through hole 42A, and the screw 50 passes through the first through hole 42A, the fifth through hole 111A and the second through hole 30A, and the screw 50 is threadedly connected to the threaded hole 41A.

[0069] It can be understood that this embodiment uses the screws 50 to ensure the stability of the connection between the flexible circuit board 32, the printed circuit board 31, the protective part 40 and the backlight module 10, further improving the connection effect between the circuit board assembly 30 and the backlight module 10, and the connection effect between the protective part 40 and the backlight module 10, thereby improving the stability of the circuit board assembly 30 and avoiding the abnormal sound problem caused by the prior art.

[0070] Furthermore, in one embodiment, the display panel 20 includes an auxiliary tape 70, which is arranged between the second sub-portion 42 of the protective portion 40 and the printed circuit board 31; wherein the auxiliary tape 70 is connected to the second sub-portion 42 of the protective portion 40, and the orthographic projection of the auxiliary tape 70 on the printed circuit board 31 covers at least a portion of the orthographic projection of the flexible circuit board 32 on the printed circuit board 31.

[0071] Specifically, a fixed potential or a ground potential is applied to the auxiliary tape 70, and the display module 1 further includes a ground terminal (not shown in the figure), which is electrically connected to the auxiliary tape 70, thereby applying a ground potential to the auxiliary tape 70, so that the auxiliary tape 70 serves as a shielding layer, thereby preventing external electromagnetic signals from interfering with the signal transmission of the flexible circuit board 32 and the printed circuit board 31.

[0072] This embodiment provides a mobile terminal, which includes a terminal body and the display module described in any one of the above embodiments, wherein the terminal body and the display module are integrated into one.

[0073] It is understandable that the display module has been described in detail in the above embodiments and will not be repeated here.

[0074] In specific applications, the mobile terminal can be the display screen of a smartphone, tablet computer, laptop computer, smart bracelet, smart watch, smart glasses, smart helmet, desktop computer, smart TV or digital camera, and can even be used on electronic devices with flexible display screens.

[0075] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0076] The above is a detailed introduction to a display module and a mobile terminal provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display module, comprising: a backplane; a display panel disposed on one side of the backplane; a circuit board assembly, the circuit board assembly and the display panel are spaced apart in a first direction, the circuit board assembly is electrically connected to the display panel, and the circuit board assembly includes a first surface and a second surface disposed opposite to each other; a protection part, the protection part extends from the first surface of the circuit board assembly to the second surface of the circuit board assembly, and the protection part covers the circuit board assembly; wherein, the protection part and the circuit board assembly are fixedly connected by screws.

2. The display module according to claim 1, wherein, The protection part includes a first sub-part, a second sub-part and a third sub-part, and the third sub-part connects the first sub-part and the second sub-part; wherein, the first sub-part is located on the first surface, and the first sub-part is spaced apart from the first surface, the second sub-part is located on the second surface, and the second sub-part is spaced apart from the second surface, the third sub-part is located on a side of the circuit board assembly away from the display panel, and the third sub-part is spaced apart from the circuit board assembly.

3. The display module according to claim 2, wherein, The first sub-part is provided with a threaded hole, the second sub-part is provided with a first through hole, the circuit board assembly is provided with a second through hole, and the first through hole, the second through hole and the threaded hole are correspondingly arranged; the screw passes through the first through hole and the second through hole, and the screw is threadedly connected to the threaded hole.

4. The display module according to claim 3, wherein, The circuit board assembly includes a printed circuit board and a flexible circuit board, the printed circuit board and the display panel are spaced apart in the first direction, one end of the flexible circuit board is connected to the display panel, and the other end of the flexible circuit board is connected to the printed circuit board; wherein, at least a part of the flexible circuit board is disposed between the printed circuit board and the first sub-part, and the first through hole penetrates through the printed circuit board and the flexible circuit board.

5. The display module according to claim 4, wherein, A first bonding end is provided on a side of the display panel close to the printed circuit board, and a second bonding end is provided on a side of the printed circuit board close to the display panel; The flexible circuit board includes a first part connected to the first bonding end, a second part connected to the second bonding end, and a third part located between the first part and the second part; wherein, the printed circuit board includes the first surface and the second surface, at least a part of the third part is located on the first surface, and the first through hole penetrates through the third part.

6. The display module according to claim 5, wherein, The display panel further includes a border tape, the border tape extends from an edge of the display panel on a side away from the backplane to a side of the backplane away from the display panel, and the border tape covers the printed circuit board and the flexible circuit board; wherein, at least a part of the border tape is located between the circuit board assembly and the protection part, the border tape is provided with a third through hole and a fourth through hole, the third through hole corresponds to the first through hole, the fourth through hole corresponds to the threaded hole, the screw passes through the first through hole, the third through hole, the second through hole and the fourth through hole, and the screw is threadedly connected to the threaded hole.

7. The display module according to claim 5, wherein, The display panel further includes a border tape, a first end of the border tape is connected to an edge of the display panel, a second end of the border tape extends from the edge of the display panel towards a direction close to the first sub - part, and the second end of the border tape is connected to a side of the first sub - part away from the printed circuit board; Wherein, a front projection of the border tape on the display panel covers the first bonding end, and a front projection of the first sub - part on the printed circuit board covers the second bonding end.

8. The display module according to claim 7, wherein, The display panel includes an auxiliary tape, and the auxiliary tape is disposed between a second sub - part of the protection part and the printed circuit board; Wherein, the auxiliary tape is connected to the second sub - part of the protection part, and a front projection of the auxiliary tape on the printed circuit board covers at least a part of a front projection of the flexible circuit board on the printed circuit board.

9. The display module according to claim 4, wherein, The backplane further includes a tongue piece, the tongue piece is disposed on a side of the backplane away from the display panel, the tongue piece extends from the backplane towards a direction close to the printed circuit board, and at least a part of the tongue piece is located between the printed circuit board and the protection part; Wherein, a second surface of the printed circuit board is disposed on the tongue piece, the tongue piece is provided with a fifth through - hole, the fifth through - hole is arranged corresponding to the first through - hole, the screw passes through the first through - hole, the fifth through - hole and the second through - hole, and the screw is in threaded connection with the threaded hole.

10. The display module according to claim 1, wherein, The display panel includes one of an organic light - emitting diode display panel and a liquid crystal display panel.

11. A mobile terminal, wherein, The mobile terminal includes a terminal body and a display module, the terminal body and the display module are combined as a whole, and the display module includes: A backplane; A display panel disposed on one side of the backplane; A circuit board assembly, the circuit board assembly and the display panel are arranged at an interval along a first direction, the circuit board assembly is electrically connected to the display panel, and the circuit board assembly includes a first surface and a second surface which are oppositely arranged; A protection part, the protection part extends from the first surface of the circuit board assembly to the second surface of the circuit board assembly, and the protection part covers the circuit board assembly; Wherein, the protection part and the circuit board assembly are fixedly connected by screws.

12. The mobile terminal according to claim 11, wherein, The protection part includes a first sub - part, a second sub - part and a third sub - part, and the third sub - part connects the first sub - part and the second sub - part; Wherein, the first sub - part is located on the first surface, and the first sub - part is arranged at an interval from the first surface, the second sub - part is located on the second surface, and the second sub - part is arranged at an interval from the second surface, the third sub - part is located on a side of the circuit board assembly away from the display panel, and the third sub - part is arranged at an interval from the circuit board assembly.

13. The mobile terminal according to claim 12, wherein, The first sub - part is provided with a threaded hole, the second sub - part is provided with a first through - hole, the circuit board assembly is provided with a second through - hole, and the first through - hole, the second through - hole and the threaded hole are arranged corresponding to each other; the screw passes through the first through - hole and the second through - hole, and the screw is in threaded connection with the threaded hole.

14. The mobile terminal according to claim 13, wherein, The circuit board assembly includes a printed circuit board and a flexible circuit board. The printed circuit board is disposed at an interval from the display panel along the first direction. One end of the flexible circuit board is connected to the display panel, and the other end of the flexible circuit board is connected to the printed circuit board; Wherein, at least a part of the flexible circuit board is disposed between the printed circuit board and the first sub - part, and the first through - hole penetrates through the printed circuit board and the flexible circuit board.

15. The mobile terminal according to claim 14, wherein, A first bonding end is provided on a side of the display panel close to the printed circuit board, and a second bonding end is provided on a side of the printed circuit board close to the display panel; The flexible circuit board includes a first part connected to the first bonding end, a second part connected to the second bonding end, and a third part located between the first part and the second part; Wherein, the printed circuit board includes the first surface and the second surface, at least a part of the third part is located on the first surface, and the first through - hole penetrates through the third part.

16. The mobile terminal according to claim 15, wherein, The display panel further includes a edge - wrapping tape. The edge - wrapping tape extends from an edge of the display panel on a side away from the backplane to a side of the backplane away from the display panel, and the edge - wrapping tape covers the printed circuit board and the flexible circuit board; Wherein, at least a part of the edge - wrapping tape is located between the circuit board assembly and the protection part. The edge - wrapping tape is provided with a third through - hole and a fourth through - hole. The third through - hole corresponds to the first through - hole, and the fourth through - hole corresponds to the threaded hole. The screw passes through the first through - hole, the third through - hole, the second through - hole, and the fourth through - hole, and the screw is threadedly connected to the threaded hole.

17. The mobile terminal according to claim 15, wherein, The display panel further includes an edge - wrapping tape. A first end of the edge - wrapping tape is connected to an edge of the display panel, and a second end of the edge - wrapping tape extends from the edge of the display panel in a direction close to the first sub - part, and the second end of the edge - wrapping tape is connected to a side of the first sub - part away from the printed circuit board; Wherein, a positive projection of the edge - wrapping tape on the display panel covers the first bonding end, and a positive projection of the first sub - part on the printed circuit board covers the second bonding end.

18. The mobile terminal according to claim 17, wherein, The display panel includes an auxiliary tape, and the auxiliary tape is disposed between the second sub - part of the protection part and the printed circuit board; Wherein, the auxiliary tape is connected to the second sub - part of the protection part, and a positive projection of the auxiliary tape on the printed circuit board covers at least a part of a positive projection of the flexible circuit board on the printed circuit board.

19. The mobile terminal according to claim 14, wherein, The backplane further includes a tongue piece. The tongue piece is disposed on a side of the backplane away from the display panel. The tongue piece extends from the backplane in a direction close to the printed circuit board, and at least a part of the tongue piece is located between the printed circuit board and the protection part; Wherein, the second surface of the printed circuit board is disposed on the tongue piece. The tongue piece is provided with a fifth through - hole. The fifth through - hole corresponds to the first through - hole. The screw passes through the first through - hole, the fifth through - hole, and the second through - hole, and the screw is threadedly connected to the threaded hole.

20. The mobile terminal according to claim 11, wherein, The display panel includes one of an organic light-emitting diode display panel and a liquid crystal display panel.

Images