Display module

Abstract

The application discloses a display module, and belongs to the technical field of display. The display module comprises a display panel, a driving connection structure and a protection structure. The driving connection structure comprises a first part, a bending part and a second part. The first part is connected with a non-display part of the display panel. The second part is located on the back of the display panel. The bending part is located between the first part and the second part and is connected with the first part and the second part respectively. The protection structure is connected with the side of the second part away from the display panel. The orthographic projection of the bending part on a target plane at least partially overlaps with the orthographic projection of the protection structure on the target plane. The target plane is parallel to the display surface of the display panel. The application can improve the reliability of the display module.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display module. BACKGROUND

[0002] The display module has a wide range of application scenarios in life, such as being used in electronic devices such as mobile phones and tablet computers.

[0003] In the related art, the display module includes a display panel and a packaging circuit board. The packaging circuit board includes a first part, a bending part and a second part, the first part is connected with a non-display part of the display panel, the second part is located at the back of the display panel, and the bending part is located between the first part and the second part and connected with the first part and the second part respectively.

[0004] However, the bending part in the packaging circuit board is prone to damage due to collision and other factors, thereby resulting in low reliability of the display module. SUMMARY

[0005] Embodiments of the present application provide a display module. The technical solution is as follows:

[0006] The display module includes a display panel, a driving connection structure and a protection structure. The driving connection structure includes a first part, a bending part and a second part. The first part is connected with a non-display part of the display panel. The second part is located at the back of the display panel. The bending part is located between the first part and the second part and connected with the first part and the second part respectively. The protection structure is connected with the side of the second part away from the display panel. The orthographic projection of the bending part on a target plane at least partially overlaps with the orthographic projection of the protection structure on the target plane. The target plane is parallel to the display surface of the display panel.

[0007] Optionally, the orthographic projection of the bending part on the target plane is located within the orthographic projection of the protection structure on the target plane.

[0008] Optionally, the display module further includes a metal conductive layer connected with the back of the display panel, and the second part is located at the side of the metal conductive layer away from the display panel. The protection structure includes a protection main body and at least one extension connected with the protection main body. The protection main body is connected with the side of the second part away from the display panel, and the extension is connected with the metal conductive layer.

[0009] Optionally, the display module further comprises a first heat-conducting layer, the first heat-conducting layer is located between the protruding part and the metal conductive layer, and the first heat-conducting layer is connected with the protruding part and the metal conductive layer respectively.

[0010] Optionally, the protection structure has electric conductivity, and the display module further comprises an electrically-conductive connecting piece, the electrically-conductive connecting piece is electrically connected with the protruding part and the metal conductive layer respectively.

[0011] Optionally, the electrically-conductive connecting piece is an electrically-conductive adhesive tape, one end of the electrically-conductive adhesive tape is connected with the metal conductive layer, and the other end of the electrically-conductive adhesive tape is connected with the protruding part.

[0012] Optionally, the display module further comprises a driving chip connected with the second part, the driving chip is located on the side of the second part away from the display panel, the side of the protection body close to the driving connecting structure has a groove, and at least part of the driving chip is located in the groove.

[0013] Optionally, the display module further comprises a second heat-conducting layer, the second heat-conducting layer is located in the groove, and the second heat-conducting layer is connected with the driving chip and the bottom surface of the groove respectively.

[0014] Optionally, the number of the grooves is plural, and the number of the protruding parts is plural, and in the direction of the bending axis of the bending part, the plural grooves and the plural protruding parts are arranged alternately.

[0015] Optionally, the display module further comprises an insulating adhesive layer, the insulating adhesive layer is located between the protection body and the second part, and the insulating adhesive layer is connected with the protection body and the second part respectively.

[0016] The technical scheme provided by the embodiments of the present application has at least the following beneficial effects: by arranging the protection structure on the side of the second part of the driving connecting structure away from the display panel, and arranging the bending part of the driving connecting structure in the target plane so that the orthographic projection of the bending part of the driving connecting structure on the target plane at least partially overlaps with the orthographic projection of the protection structure on the target plane, the protection structure can protect the bending part of the driving connecting structure, so as to reduce the possibility of the bending part being collided, thereby playing a role of protecting the bending part. In this way, the reliability of the display module can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0018] Figure 1 is a plane structure schematic diagram of a display module provided by an embodiment of the present application;

[0019] Figure 2 is a cross-sectional structure schematic diagram of a display module provided by an embodiment of the present application;

[0020] Figure 3 is a cross-sectional structure schematic diagram of another display module provided by an embodiment of the present application;

[0021] Figure 4 is a plane structure schematic diagram of another display module provided by an embodiment of the present application;

[0022] Figure 5 is a cross-sectional structure schematic diagram of another display module provided by an embodiment of the present application;

[0023] Figure 6 is a plane structure schematic diagram of a protection structure provided by an embodiment of the present application;

[0024] Figure 7 is a plane structure schematic diagram of another protection structure provided by an embodiment of the present application;

[0025] Figure 8 is a cross-sectional structure schematic diagram of a protection structure provided by an embodiment of the present application;

[0026] Figure 9 is Figure 4 a side view at a CC cross-sectional line;

[0027] Figure 10 is a plane structure schematic diagram of another display module provided by an embodiment of the present application;

[0028] Figure 11 is a cross-sectional structure schematic diagram of another display module provided by an embodiment of the present application;

[0029] Figure 12 is Figure 10 a side view at a FF cross-sectional line. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0031] Figure 1 is a plane structure schematic diagram of a display module provided by an embodiment of the present application, Figure 2 is a cross-sectional structure schematic diagram of a display module provided by an embodiment of the present application, and Figure 2 is Figure 1A cross-sectional structure schematic diagram along the AA cross-sectional line. As shown in Figure 1 and Figure 2 The display module can include a display panel 1, a driving connection structure 2, and a protection structure 4.

[0032] The driving connection structure 2 includes a first part 21, a bending part 22, and a second part 23. The first part 21 is connected with a non-display part of the display panel 1, the second part 23 is located at the back of the display panel 1, and the bending part 22 is located between the first part 21 and the second part 23 and is connected with the first part 21 and the second part 23 respectively.

[0033] It should be noted that the display panel 1 can have a display surface, and the back of the display panel 1 is the other surface of the display panel 1 opposite to the display surface. Here, the part of the display panel 1 where the display surface is arranged is the display part of the display panel 1, and the non-display part of the display panel 1 can be distributed around the periphery of the display part.

[0034] The protection structure 4 is connected with the side of the second part 23 away from the display panel 1. The orthographic projection of the bending part 22 on a target plane at least partially overlaps the orthographic projection of the protection structure 4 on the target plane, and the target plane is a plane parallel to the display surface of the display panel 1.

[0035] In scenarios such as assembly, transportation, and use, the bending part in the related technology is prone to be damaged due to factors such as collision. Therefore, the embodiments of the present application can protect the bending part 22 in the driving connection structure 2 by arranging the protection structure 4 on the side of the second part 23 of the driving connection structure 2 away from the display panel 1, and making the orthographic projection of the bending part 22 in the driving connection structure 2 on a target plane at least partially overlap the orthographic projection of the protection structure 4 on the target plane, so as to protect the bending part 22 in the driving connection structure 2 by the protection structure 4, thereby reducing the possibility of the bending part 22 being collided, and thus the bending part 22 can be protected. Moreover, since the protection structure 4 is connected with the side of the second part 23 away from the display panel 1, the protection structure 4 can also protect the second part 23.

[0036] It should be noted that Figure 1 is a schematic diagram of observing the display module from the direction of the display surface of the display panel 1 pointing to the back, and in order to clearly show the protection structure 4, Figure 1 the display panel 1 is not pattern-filled, and the driving connection structure 2 is not shown.

[0037] It should also be noted that Figure 1 and Figure 2 the size ratio between the structures in the drawings only represents the schematic, and does not represent the size ratio of the structures in the actual product as shown in the drawings.

[0038] Exemplarily, the normal projection of the bending portion 22 on the target plane is located in the normal projection of the protection structure 4 on the target plane, that is, the protection structure 4 covers the bending portion 22. Since the protection structure 4 covers the bending portion 22, the protection structure 4 can protect each part of the bending portion 22, thereby achieving a better protection effect on the bending portion 22.

[0039] In summary, the display module provided by the embodiment of the present application comprises a display panel, a driving connection structure and a protection structure. By arranging the protection structure on the side of the second part of the driving connection structure away from the display panel, and making the normal projection of the bending portion in the driving connection structure on the target plane at least partially coincide with the normal projection of the protection structure on the target plane, the protection structure can protect the bending portion in the driving connection structure, so as to reduce the possibility of the bending portion being collided, thereby playing a role in protecting the bending portion. In this way, the reliability of the display module can be effectively improved.

[0040] Exemplarily, the display panel 1 comprises a substrate 11 and a display structure 12 on the substrate 11, and the display structure 12 can comprise a driving circuit layer and a plurality of light emitting units on the driving circuit layer. The display panel can be an organic light emitting diode (OLED) display panel, for example, a low temperature polycrystalline oxide (LTPO) display panel or a low temperature polycrystalline silicon (LTPS) display panel, etc. The display panel can also be a liquid crystal display panel, etc. The type of the display panel 1 is not limited in the embodiment of the present application.

[0041] Figure 3 is another cross-sectional structure schematic diagram of a display module provided by the embodiment of the present application. As shown in Figure 3 , the display module further comprises a metal conductive layer 5. The metal conductive layer 5 is connected with the back of the display panel 1, and the second part 23 is located on the side of the metal conductive layer 5 away from the display panel 1.

[0042] Exemplarily, the manufacturing material of the metal conductive layer 5 comprises a super clean foam (SCF) layer and a metal material layer on the side of the SCF layer away from the display panel 1, so the metal conductive layer 5 is also called the SCF layer, and the metal conductive layer 5 not only has the function of conducting electricity, but also has the function of dissipating heat.

[0043] Figure 4 is another planar structure schematic diagram of a display module provided by the embodiment of the present application, and Figure 3 isFigure 4 A cross-sectional structure schematic diagram along the BB cross-sectional line. In combination with Figure 3 and Figure 4 The protection structure 4 includes a protection main body 41 and at least one extension 42 connected with the protection main body 41, the protection main body 41 is connected with the side of the second part 23 away from the display panel 1, and the extension 42 is connected with the metal conductive layer 5.

[0044] The protection structure 4 provided by the embodiment of the present application includes the protection main body 41 and the extension 42, and the protection main body 41 is used to protect the bending part 22 and the second part 23. For the extension 42, since the extension 42 is connected with the protection main body 41 and the metal conductive layer 5, the heat generated at the driving connection structure 2 can be first transmitted to the protection main body 41 and then transmitted to the metal conductive layer 5 with the heat dissipation function through the extension 42 in the process of using the display module, so that the protection structure 4 in the embodiment of the present application also has the heat dissipation function.

[0045] Exemplarily, the manufacturing material of the protection structure 4 includes a metal material, so that the protection structure 4 has the functions of protecting the driving connection structure 2 and conducting heat at the same time.

[0046] Exemplarily, as Figure 3 shown, the display module further includes a first heat conduction layer 61, the first heat conduction layer 61 is located between the extension 42 and the metal conductive layer 5, and the first heat conduction layer 61 is connected with the extension 42 and the metal conductive layer 5 respectively. By setting the first heat conduction layer 61, the first heat conduction layer 61 has the heat conduction capacity to improve the heat transfer effect between the protection structure 4 and the metal conductive layer 5, that is, the heat in the protection structure 4 can be better transmitted to the metal conductive layer 5.

[0047] Optionally, the manufacturing material of the first heat conduction layer 61 includes a heat conduction adhesive material, so that the first heat conduction layer 61 not only has the heat conduction capacity, but also can play the role of fixing the extension 42, thereby playing the role of fixing the protection structure 4.

[0048] Figure 5 is another cross-sectional structure schematic diagram of a display module provided by the embodiment of the present application, and Figure 5 is Figure 4 A cross-sectional structure schematic diagram along the CC cross-sectional line. As Figure 5 shown, the display module further includes a driving chip 24 connected with the second part 23, the driving chip 24 is located at the side of the second part 23 away from the display panel 1, the side of the protection main body 41 close to the driving connection structure 2 has a groove 410, and at least part of the driving chip 24 is located in the groove 410.

[0049] The embodiment of the present application sets the groove 410 on the side of the protection body 41 close to the driving connection structure 2 to avoid the driving chip 24, which plays a role in protecting the driving chip 24, thereby avoiding the driving chip 24 from being damaged due to the collision between the driving chip 24 and the protection structure 4 during the assembly, transportation and the like, and further affecting the display function.

[0050] Exemplarily, the driving connection structure 2 can be a packaging circuit board, for example, can be one of a Chip On Film (COF) circuit board, a Chip On Glass (COG) circuit board and a Chip On Pi (COP) circuit board. By bending one end of the driving connection structure 2 to the back of the display panel 1, other structures electrically connected with the packaging circuit board, for example, a flexible circuit board and the like, can be arranged on the back of the display panel, instead of being arranged on the non-display part of the display surface, thereby facilitating the narrow frame design.

[0051] If the driving connection structure 2 is a Chip On Film (COF) circuit board or a Chip On Pi (COP) circuit board, the driving chip 24 is located on the side of the second part 23 away from the display panel 1, by arranging the driving chip 24 on the back of the display panel 1, the effect of narrowing the frame can be further achieved. Figure 5 Exemplarily, the driving connection structure 2 is a Chip On Film (COF) circuit board, and in the embodiment shown in the figure, the driving chip 24 is arranged on the non-display part of the display surface. Figure 5 In the embodiment shown in the figure, the driving connection structure 2 is connected with the display panel by being bound on the non-display part of the display panel. If the driving connection structure 2 is a Chip On Pi (COP) circuit board, the driving connection structure 2 and the substrate 1 are an integrated structure.

[0052] If the driving connection structure 2 is a Chip On Glass (COG) circuit board, the driving chip 24 electrically connected with the driving connection structure 2 is located on the non-display part of the display surface, instead of being located on the side of the second part 23 away from the display panel 1, wherein the substrate 11 in the display panel 1 can be a glass substrate.

[0053] In a possible embodiment, the driving chip 24 away from the surface of the display panel 1 has a gap with the bottom surface of the groove 410, to avoid the collision between the driving chip 24 and the protection structure 4 during the assembly, transportation and the like.

[0054] In another possible embodiment, as shown in the figure, the driving chip 24 is arranged on the non-display part of the display surface. Figure 5As shown, the display module further comprises a second heat-conducting layer 62, the second heat-conducting layer 62 is located in the groove 410, and the second heat-conducting layer 62 is connected with the driving chip 24 and the bottom surface of the groove 410 respectively. In the working process of the display module, the heat at the driving chip 24 is high, by setting the second heat-conducting layer 62, it is beneficial to guide the heat at the driving chip 24 into the protection structure 4, thereby it is beneficial to further improve the heat dissipation effect, and avoid that the display function of the display module is affected due to the high local heat and poor heat dissipation effect of the driving chip 24.

[0055] Exemplarily, as Figure 3 shown, the display module further comprises an insulating adhesive layer 3, the insulating adhesive layer 3 is located between the protection main body 41 and the second part 23, and the insulating adhesive layer 3 is connected with the protection main body 41 and the second part 23 respectively. By setting the insulating adhesive layer 3, the protection main body 41 and the second part 23 are connected, thereby the function of fixing the protection main body 41 is achieved. Moreover, since the manufacturing material of the protection structure 4 usually comprises a metal material, the setting of the insulating adhesive layer 3 can avoid that the driving chip 24 is electrically connected with the protection main body 41, and avoid that the electronic elements on the driving connection structure 2 are electrically connected with the protection main body 41.

[0056] Figure 6 is a plane structure schematic diagram of a protection structure provided by an embodiment of the present application, Figure 7 is a plane structure schematic diagram of another protection structure provided by an embodiment of the present application, Figure 8 is a cross-section structure schematic diagram of a protection structure provided by an embodiment of the present application. Wherein, Figure 6 is a schematic diagram of observing the protection structure 4 from the direction of the display surface of the display panel 1 to the back surface, Figure 7 is a schematic diagram of observing the protection structure 4 from the direction of the back surface of the display panel 1 to the display surface, Figure 8 the (a) part of Figure 4 is a cross-section structure schematic diagram along the DD cross-section line, Figure 8 the (b) part of Figure 4 is a cross-section structure schematic diagram along the EE cross-section line, in order to clearly show the positional relationship of each part structure in the protection structure, and the positional relationship between the protection structure and other structures (such as the insulating adhesive layer 3), the present application further provides Figure 6 is a side view at the DD cross-section line, as Figure 6 shown in the (c) part of

[0057] In a possible embodiment, the display module comprises a plurality of driving connection structures 2, correspondingly, the display module comprises a plurality of driving chips 24, the plurality of driving chips 24 are located on the second part 23 of the plurality of driving connection structures 2 respectively. As Figure 6 , Figure 7 and Figure 8As shown, the protection body 41 of the protection structure 4 has a plurality of grooves 410 on the surface close to the substrate 1 to facilitate avoiding a plurality of driving chips 24.

[0058] It should be noted that, in order to indicate the position of the grooves 410, Figure 6 pattern filling is performed on the grooves 410; and, in order to indicate the positional relationship between the insulating adhesive layer 3 and the protection body 41, Figure 6 、 Figure 8 the (a) part of Figure 8 and the (c) part of

[0059] It should be noted that, Figure 8 the (c) part of Figure 6 the side view at the DD cross-section line means: Figure 8 the (c) part of Figure 6 is based on the cross-sectional view at the DD cross-section line, that is, on the basis of the (a) part of Figure 8 not only indicates the structure on this cross-section, but also indicates other structures after this cross-section, and uses a dashed line to indicate other structures after this cross-section, for example, also indicates the grooves 410. Here, other structures after this cross-section refer to other structures located on the left side of the DD cross-section line in Figure 6 .

[0060] In other possible embodiments, in order to avoid a plurality of driving chips 24, instead of setting a plurality of grooves 410, a longer groove can be set, which can be regarded as Figure 6 the longer groove formed by horizontally connecting a plurality of grooves 410 in the shown embodiment.

[0061] In other possible embodiments, the display module may also include only one driving connection structure 2 and only one driving chip 24. The number of driving chips 24 can be determined according to factors such as the size of the display panel and the driving ability of the driving chip 24. For a large-sized display panel, usually a plurality of driving chips 24 need to be set.

[0062] Exemplarily, the orthographic projection of the groove 410 on the target plane can be in the shape of a "convex" as shown in Figure 6 , or can be rectangular, circular, elliptical, trapezoidal, etc. The embodiment of the present application does not limit the shape of the orthographic projection of the groove 410 on the target plane.

[0063] Exemplarily, as shown in Figure 6As shown, the orthographic projection of the insulating adhesive layer 3 on the target plane is located outside the orthographic projection of the groove 410 on the target plane. By arranging the insulating adhesive layer 3 outside the groove 410 instead of arranging the insulating adhesive layer 3 inside the groove 410, the driving chip 24 has a larger avoiding space, so as to avoid the position change of the driving chip 24 due to the collision with the insulating adhesive layer 3 in the assembling process.

[0064] Exemplarily, in combination with Figure 4 and Figure 5 , the display module further comprises a first circuit board 71 and a second circuit board 72, the first circuit board 71 and the second circuit board 72 are both located on the side of the metal conductive layer 5 away from the display panel 1, and the first circuit board 71 is electrically connected to the driving connection structure 2 and the second circuit board 72.

[0065] Optionally, the second circuit board 72 can be a printed circuit board (PCB), and the second circuit board 72 comprises a circuit layer 721 and an electronic element 722 located on the side of the circuit layer 721 away from the display panel 1. The electronic element 722 in the second circuit board 72 can comprise a connector.

[0066] Optionally, the first circuit board 71 can be a flexible printed circuit (FPC) to facilitate the electrical connection between the driving connection structure 2 and the second circuit board 72. When the driving connection structure 2 is a chip on glass (COG) circuit board or a chip on film (COF) circuit board as shown in the figure, the first circuit board 71 can serve as a connection between the driving connection structure 2 and the second circuit board 72. When the driving connection structure 2 is a chip on pi (COP) circuit board, the first circuit board 71 can not be arranged, and the end of the driving connection structure 2 away from the display panel is connected to the second circuit board 72. Figure 5

[0067] Optionally, when the number of the driving connection structure 2 and the driving chip 24 is multiple, the number of the first circuit board 71 in the display module is also multiple, so that the multiple first circuit boards 71 and the multiple driving connection structures 2 are connected one by one, and the multiple driving connection structures 2 and the multiple driving chips 24 are connected one by one.

[0068] Exemplarily, the display device in which the display module is located comprises a whole machine central processing unit, the whole machine central processing unit is electrically connected to the connector in the second circuit board 72, and then controls the driving chip 24 on the driving connection structure 2 through the second circuit board 72 and the first circuit board 71 in sequence, where the driving chip 24 can also be referred to as a display driver IC (DDIC), so as to control the display of the display panel 1.​

[0069] As shown in Figure 5 , the normal projection of the end of the first circuit board 72 connected with the driving connection structure 2 on the target plane is located in the normal projection of the protection structure 4 on the target plane, so that the protection structure 4 in the embodiment of the present application can not only play the aforementioned protection role on the driving connection structure 2, but also play the protection role on the connection area (bonding area) between the driving connection structure 2 and the first circuit board 72.

[0070] In a possible embodiment, in combination with Figure 4 and Figure 6 , the number of the grooves 410 is multiple, and the number of the protruding parts 42 is multiple. In the direction x of the bending axis of the bending part 22, the multiple grooves 410 and the multiple protruding parts 42 are arranged alternately.

[0071] Since at least part of the driving chip 24 is located in the groove 410, in the direction x of the bending axis of the bending part 22, the driving chip 24 and the multiple protruding parts 42 are arranged alternately, that is, the second part 23 where the driving chip 24 is located and the multiple protruding parts 42 are arranged alternately, so as to facilitate the first circuit board 72 to be connected with the driving connection structure 2 through the space between two adjacent protruding parts 42.

[0072] As shown in Figure 4 , in the direction x of the bending axis of the bending part 22, two protruding parts 42 are distributed on the two sides of one first circuit board 72, that is, two first circuit boards 72 are distributed on the two sides of one protruding part 42.

[0073] As shown in Figure 6 , the multiple protruding parts 42 are equidistantly distributed in the direction x of the bending axis of the bending part 22. In the embodiment of the present application, the multiple protruding parts 42 are equidistantly distributed in the direction x of the bending axis of the bending part 22, which is beneficial to more uniformly transmit the heat at the driving connection structure 2 to the metal conductive layer 5, avoid local overheating of the metal conductive layer 5, improve the heat dissipation effect, and since the protruding parts 42 of the protection structure 4 are connected with the metal conductive layer 5 through the first heat-conducting layer 61, the equidistant distribution of the multiple protruding parts 42 is beneficial to make the fixation of the protection structure 4 more reliable.

[0074] In other possible embodiments, the protection structure 4 can also include only one protruding portion 42. Different numbers of protruding portions 42 can be set according to the heat dissipation requirement of the product. If the heat dissipation requirement of the display module is high, for example, there are multiple drive chips 24 in the display module, then multiple protruding portions 42 can be set to improve the effect of the protection structure 4 on dissipating heat at the drive chip 24 to the metal conductive layer 5. If the heat dissipation requirement of the display module is not high, for example, there is only one or two drive chips in the display module, then compared with the foregoing embodiments, the number of protruding portions 42 can be reduced, for example, only one protruding portion 42 can be set.

[0075] Again referring to Figure 6 , the insulating adhesive layer 3 includes multiple insulating adhesive blocks 30, and the multiple insulating adhesive blocks 30 and the multiple grooves 410 are arranged alternately in the direction x of the bending axis of the bending portion 22. By setting the multiple insulating adhesive blocks 30, the area of the orthographic projection of the insulating adhesive layer 3 on the target plane is increased as much as possible, thereby facilitating the stable connection between the main body 41 and the drive connection structure 2.

[0076] Exemplarily, as shown in part (a) of Figure 8 , the cross-sectional shape of the protection structure 4 is Z-shaped. Since the minimum distance between the surface of the protruding portion 42 close to the display panel 1 and the display panel 1 is smaller than the minimum distance between the surface of the main body 41 close to the display panel 1 and the display panel 1, the protection structure 4 is set to be Z-shaped, that is, the maximum distance between the surface of the protruding portion 42 away from the display panel 1 and the display panel 1 is smaller than the maximum distance between the surface of the main body 41 away from the display panel 1 and the display panel 1, so that the thickness dimension of the protection structure 4 at different positions in the direction parallel to the display panel 1 is less different, and thus the weight of the protection structure 4 at different positions is more uniform.

[0077] Optionally, the cross-sectional shape of the protection structure 4 can also be L-shaped, that is, the minimum distance between the surface of the protruding portion 42 close to the second surface 12 and the second surface 12 is smaller than the minimum distance between the surface of the main body 41 close to the second surface 12 and the second surface 12, and the maximum distance between the surface of the protruding portion 42 away from the second surface 12 and the second surface 12 is less different from the maximum distance between the surface of the main body 41 away from the second surface 12 and the second surface 12, for example, the surface of the protruding portion 42 away from the second surface 12 and the surface of the main body 41 away from the second surface 12 can be located in the same plane and parallel to the second surface 12.

[0078] To further illustrate the positional relationship between the structures in the embodiment shown in Figures 3 to 8 , the present embodiment also provides Figure 9 , Figure 9 is Figure 4 a side view at the CC cross-sectional line. It should be noted that Figure 9For Figure 4 The side view at the CC section line refers to: Figure 9 At the basis of the cross-sectional view at the CC section line, that is, Figure 4 At the basis of the cross-sectional view at the CC section line, that is, Figure 9 At the basis of the cross-sectional view at the CC section line, that is, Figure 5 , not only the structure on the cross section is shown, but also other structures after the cross section are shown, and the other structures after the cross section are shown by a dashed line, for example, the extension 42, the first heat conduction layer 61 and other structures are also shown. Here, the other structures after the cross section refer to the other structures on the left side of the CC section line in Figure 4 .

[0079] Exemplarily, as shown in Figure 9 , the maximum distance from the surface of the protection structure 4 away from the surface of the second circuit board 72 to the display panel 1 is less than the maximum distance from the surface of the second circuit board 72 to the display panel 1. The position relationship between the protection structure 4 away from the surface of the display panel 1, the second circuit board 72 away from the surface of the display panel 1, and the display panel 1 is limited, so as to limit the thickness size of the protection structure 4, so as to avoid the protection structure 4 being too thick, and facilitate the light and thin product.

[0080] Exemplarily, as shown in Figure 9 , the display module further comprises a cover plate 81 located on the side of the display panel 1 away from the protection structure 4, so as to protect the display panel 1. Optionally, the cover plate 82 is a glass cover plate.

[0081] Exemplarily, as shown in Figure 9 , the display module further comprises a polarizer 82 located between the display panel 1 and the cover plate 81.

[0082] Exemplarily, the display module further comprises an optical clear adhesive (OCA) layer (not shown in the figure) located between the polarizer 82 and the cover plate 81, so as to connect the cover plate 81 and the polarizer 82.

[0083] Exemplarily, as shown in Figure 9 , the display module further comprises a gasket 85. The gasket 85 is located between the first part 21 and the second part 23, and one side of the gasket 4 is connected with the metal conductive layer 5, and the other side is connected with the second part 23, so as to play a buffering role.

[0084] The protection structure 4 in the embodiment of the application not only can play the role of protecting the driving connection structure 2 and the heat conduction, but also can play the role of electrostatic protection. Figure 10 is another planar structure schematic diagram of a display module provided by the embodiment of the application. Figure 11 is another cross-sectional structure schematic diagram of a display module provided by the embodiment of the application, andFigure 11 is Figure 10 A schematic diagram of a cross-sectional structure along the EE cross-sectional line. Figure 12 is Figure 10 A side view at the FF cross-sectional line.

[0085] As Figure 10 , Figure 11 and Figure 12 shown, the protective structure 4 has electrical conductivity, and the display module further comprises: an electrically conductive connecting piece 63, which is respectively electrically connected with the protruding part 42 and the metal conductive layer 5.

[0086] In scenarios such as assembly, transportation or use, electrostatic from the external environment may be transmitted to the bending part 22 and the second part 23 of the driving connection structure 2. By arranging the electrically conductive connecting piece 63 connecting the metal conductive layer 5 and the protruding part 42, and the protective structure 4 having electrical conductivity, so that the protective structure 4, the electrically conductive connecting piece 63 and the metal conductive layer 5 are electrically connected, the electrostatic from the external environment transmitted to the driving connection structure 2 is transmitted along the protective structure 4 and the electrically conductive connecting piece 63 to the metal conductive layer 5, thereby playing a role of electrostatic protection for the driving connection structure 2.

[0087] It should be noted that, Figure 12 is Figure 10 The side view at the FF cross-sectional line means: Figure 12 is Figure 10 Based on the cross-sectional view at the FF cross-sectional line, not only the structure on the cross-section is shown, but also other structures after the cross-section are shown, and the other structures after the cross-section are shown by a dashed line, for example, the protruding part 42, the first heat-conductive layer 61 and the electrically conductive connecting piece 63 are also shown. Here, the other structures after the cross-section refer to the other structures located on the left side of the FF cross-sectional line in the Figure 10 .

[0088] Exemplarily, the electrically conductive connecting piece 63 is an electrically conductive adhesive tape, one end of the electrically conductive adhesive tape is connected with the metal conductive layer 5, and the other end of the electrically conductive adhesive tape is connected with the protruding part 42. The electrically conductive adhesive tape not only has electrical conductivity, but also can further play a role of fixing the electrically conductive structure 4.

[0089] Optionally, as Figure 10 shown, the leftmost protruding part 42 and the rightmost protruding part 42 in the plurality of protruding parts 42 are respectively connected with one electrically conductive adhesive tape 63. Optionally, other protruding parts 42 can also be connected with the electrically conductive adhesive tape 63. Optionally, only one electrically conductive adhesive tape can be arranged, or more than two electrically conductive adhesive tapes can be arranged.

[0090] Exemplarily, the end of the electrically conductive adhesive tape connected with the protruding part 42 is located on the side of the protruding part 42 away from the display panel 1, that is, for Figure 10The leftmost or rightmost extension 42 in the illustrated embodiment is connected to the first conductive layer 61 on the side close to the display panel 1, and is connected to the conductive adhesive tape on the side away from the display panel 1.

[0091] In other possible embodiments, one end of the conductive adhesive tape can be connected to the metal conductive layer 5, and the other end can be connected to the protective body 41.

[0092] Exemplarily, the conductive connecting member can also be a metal sheet, and the metal sheet is located between the extension 42 and the metal conductive layer 5. For example, for a plurality of extensions 42, a part of the extensions 42 are connected to the metal conductive layer 5 through the metal sheet, and the other part of the extensions 42 are connected to the metal conductive layer 5 through the first conductive layer 61.

[0093] Figures 1 to 9 The illustrated embodiment can be combined with the embodiment of Figures 10 to 12 For example, the first heat-conductive layer 61, the second heat-conductive layer 62 and the conductive connecting member 63 can be provided at the same time, so that the protective structure 4 in the embodiment of the present application can play a role in protecting the driving connection structure 2, avoiding the bending part 22 and the second part 23 from being damaged due to collision, and also can play a role in heat dissipation and electrostatic protection.

[0094] In summary, the display module provided by the embodiment of the present application comprises a display panel, a driving connection structure and a protective structure. By providing the protective structure on the side of the second part of the driving connection structure away from the display panel, and making the orthographic projection of the bending part of the driving connection structure on the target plane at least partially coincide with the orthographic projection of the protective structure on the target plane, the protective structure can protect the bending part of the driving connection structure, so as to reduce the possibility of the bending part being collided, thereby playing a role in protecting the bending part. In this way, the reliability of the display module can be effectively improved.

[0095] The embodiment of the present application also provides a display device, which comprises a power supply circuit and the aforementioned display module, and the power supply circuit is used for supplying power to the display module.

[0096] Exemplarily, the display device provided by the embodiment of the present application can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc.

[0097] The display device has the same effects as the aforementioned display panel, and will not be described here again.

[0098] It should be noted that the terms used in the description of the embodiments of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as the usual meaning understood by those skilled in the art to which the embodiments of the present application belong. The terms "first", "second", "third" and the like used in the patent application description and claims of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and the like do not represent a quantity limit, but represent the existence of at least one. The terms "include" or "contain" and the like mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. The orientation language mentioned in the present application, such as "top", "bottom", "upper", "lower", "left" or "right", etc. is only the direction of the drawing, therefore, the orientation language used is to better, more clearly explain and understand the present application, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0099] The above is only an optional embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display module, characterized in that, The display module includes: a display panel (1), a driving connection structure (2), a protective structure (4), and a metal conductive layer (5). The drive connection structure (2) includes: a first part (21), a bent part (22), and a second part (23). The first part (21) is connected to the non-display part of the display panel (1), and the second part (23) is located on the back of the display panel (1). The bent part (22) is located between the first part (21) and the second part (23) and is connected to the first part (21) and the second part (23) respectively. The protective structure (4) is connected to the side of the second part (23) away from the display panel (1); The metal conductive layer (5) is connected to the back of the display panel (1), and the second part (23) is located on the side of the metal conductive layer (5) away from the display panel (1). Wherein, the orthographic projection of the bent portion (22) on the target plane at least partially coincides with the orthographic projection of the protective structure (4) on the target plane, and the target plane is a plane parallel to the display surface of the display panel (1); The protective structure (4) includes: a protective body (41) and at least one protrusion (42) connected to the protective body (41). The protective body (41) is connected to the side of the second part (23) away from the display panel (1), and the protrusion (42) is connected to the metal conductive layer (5).

2. The display module according to claim 1, characterized in that, The orthographic projection of the bent portion (22) onto the target plane is located within the orthographic projection of the protective structure (4) onto the target plane.

3. The display module according to claim 1, characterized in that, The display module further includes a first thermally conductive layer (61), which is located between the protrusion (42) and the metal conductive layer (5), and the first thermally conductive layer (61) is connected to the protrusion (42) and the metal conductive layer (5) respectively.

4. The display module according to claim 3, characterized in that, The protective structure (4) is conductive, and the display module further includes a conductive connector (63), which is electrically connected to the protrusion (42) and the metal conductive layer (5) respectively.

5. The display module according to claim 4, characterized in that, The conductive connector (63) is a conductive tape. One end of the conductive tape is connected to the metal conductive layer (5), and the other end of the conductive tape is connected to the protrusion (42).

6. The display module according to claim 1, characterized in that, The display module further includes a driver chip (24) connected to the second part (23), the driver chip (24) being located on the side of the second part (23) away from the display panel (1), the protective body (41) having a groove (410) on the side near the drive connection structure (2), and at least a portion of the driver chip (24) being located in the groove (410).

7. The display module according to claim 6, characterized in that, The display module further includes a second thermal conductive layer (62), which is located in the groove (410) and is connected to the driving chip (24) and the bottom surface of the groove (410) respectively.

8. The display module according to claim 6, characterized in that, The number of grooves (410) is multiple, and the number of protrusions (42) is multiple. In the direction of the bending axis of the bent portion (22), the multiple grooves (410) and the multiple protrusions (42) are arranged alternately.

9. The display module according to claim 1, characterized in that, The display module further includes an insulating adhesive layer (3), which is located between the protective body (41) and the second part (23), and is connected to the protective body (41) and the second part (23) respectively.

Images