Display module and display device

Abstract

The utility model relates to the technical field of display devices, in particular to a display module and a display device. The utility model aims to solve the problem that the display device cannot pass the EMC test due to the fact that the gate drive IC cannot effectively shield the electromagnetic signal. In order to achieve the purpose, the display module comprises a metal back plate, a cover plate, a conductive part and a display panel, a conductive layer is arranged on a base body, it is ensured that the conductive layer is electrically connected with the metal back plate through the conductive part, the orthographic projection of the conductive layer on the base body can cover the orthographic projection of a gate drive IC on the base body, and therefore the display effect is improved. The conductive layer is arranged on the metal back plate, so that an electromagnetic shielding layer can be formed when the conductive layer is electrically connected with the metal back plate, external electromagnetic signals are effectively reflected and absorbed to ensure that the gate drive IC is not interfered by the external electromagnetic signals, the radiation interference resistance of the display module is improved, and the display device can meet EMC test standards.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, and in particular to a display module and a display device. Background Art

[0002] Display devices not only emit electromagnetic signals during use but may also be interfered with by external electromagnetic signals. Failure to undergo electromagnetic compatibility (EMC) testing can lead to performance degradation or even damage, as well as interference with other devices. Therefore, the electromagnetic compatibility of display devices is receiving increasing attention in the industry. EMC testing covers multiple aspects, including but not limited to radiated interference testing, conducted interference testing, electrostatic field testing, and high current injection testing. Of these tests, radiated interference testing is the most challenging to pass.

[0003] To ensure that a display device passes radiated interference testing, conductive tape is typically applied to the driver IC side of the display device to reflect or absorb external electromagnetic signals, thereby improving the display device's resistance to radiated interference. However, the gate driver IC side of the driver IC is narrow, making it difficult to apply conductive tape. This makes the gate driver IC susceptible to interference from electromagnetic signals, causing the display device to fail EMC testing.

[0004] Accordingly, this field requires a new technical solution to solve the above problems. Summary of the Invention

[0005] In order to solve at least one of the above problems in the prior art, namely, to solve the problem that the gate driver IC cannot effectively shield electromagnetic signals, resulting in the display device failing to pass the EMC test, the present application provides a display module, the display module comprising:

[0006] Metal back panel;

[0007] A cover plate, comprising a base and a conductive layer disposed on the base, wherein the conductive layer is disposed opposite to the metal back plate;

[0008] A conductive member electrically connecting the conductive layer to the metal back plate and forming a receiving space with the cover plate and the metal back plate;

[0009] A display panel is accommodated in the accommodating space, comprising a gate driver IC arranged on the side, and the light-emitting side of the display panel faces the conductive layer; wherein the orthographic projection of the gate driver IC on the substrate is covered by the orthographic projection of the conductive layer on the substrate.

[0010] In the preferred technical solution of the above display module, the cover plate includes a light-transmitting area and a light-shielding area surrounding the light-transmitting area; the display panel includes a display area and a frame area surrounding the display area;

[0011] The orthographic projection of the light-transmitting area on the substrate is aligned with the orthographic projection of the display area on the substrate, and the orthographic projection of the light-shielding area on the substrate covers the orthographic projection of the frame area on the substrate;

[0012] Furthermore, the gate driver IC is arranged in the frame area, and the conductive layer at least covers the light-shielding area.

[0013] In a preferred technical solution of the above display module, the conductive layer covers the entire substrate.

[0014] In the preferred technical solution of the above display module, the conductive layer is conductive ink.

[0015] In the preferred technical solution of the above display module, the cover plate further includes:

[0016] an insulating layer, disposed on a surface of the conductive layer facing away from the substrate, and having at least one opening formed on the insulating layer in the light-shielding area to expose the conductive layer;

[0017] Wherein, the conductive member is electrically connected to the conductive layer through the opening.

[0018] In a preferred technical solution of the above display module, a groove is provided on the metal back plate, and the conductive member is inserted into the groove and electrically connected to the conductive layer.

[0019] In the preferred technical solution of the above display module, the conductive member is conductive foam or conductive glue.

[0020] In a preferred technical solution of the above display module, a protrusion is formed on the metal back plate, and the protrusion serves as the conductive member and is inserted into the opening and electrically connected to the conductive layer.

[0021] In the preferred technical solution of the above display module, the cover plate further includes:

[0022] The white ink layer is located in the light-shielding area and is arranged on the surface of the insulating layer facing away from the substrate.

[0023] In the preferred technical solution of the above display module, the cover plate further includes:

[0024] At least one layer of black ink is located in the light-shielding area and is disposed between the conductive layer and the substrate.

[0025] In the preferred technical solution of the above display module, the cover plate further includes:

[0026] An icon layer is located in the light-shielding area and is disposed between the conductive layer and the at least one layer of black ink; wherein the icon layer includes at least one patterned icon ink.

[0027] The present application also provides a display device, which includes the display module described in the above preferred technical solution.

[0028] It will be understood by those skilled in the art that the display module of the present invention provides a conductive layer on the substrate and ensures that it is electrically connected to the metal backplate through a conductive member. The orthographic projection of the conductive layer on the substrate can cover the orthographic projection of the gate driver IC on the substrate, so that when the conductive layer is electrically connected to the metal backplate, an electromagnetic shielding layer can be formed, which effectively reflects and absorbs external electromagnetic signals, thereby ensuring that the gate driver IC will not be interfered with by external electromagnetic signals, thereby improving the anti-radiation interference performance of the display module, and enabling the display device to meet EMC test standards.

[0029] Furthermore, by covering the entire substrate with the conductive layer, the electromagnetic shielding effect of the display module can be improved, thereby enhancing the anti-radiation interference performance of the display module.

[0030] Furthermore, by providing an insulating layer on the conductive layer and opening at least one opening in the insulating layer corresponding to the shading area, this design not only avoids the short circuit problem of the cover plate, but also enables the conductive member to be electrically connected to the conductive layer through the opening, thereby improving the anti-radiation interference performance of the display module and enabling the display device to meet EMC test standards.

[0031] Furthermore, by providing a groove on the metal back plate, the conductive member is inserted into the groove and electrically connected to the metal back plate, which can improve the EMC performance of the display module and facilitate the installation of the cover plate and the metal back plate.

[0032] Furthermore, by forming a protrusion on the metal back plate and inserting the protrusion as a conductive member into the opening and electrically connecting it to the conductive layer, the EMC performance of the display module can be improved while facilitating the installation of the cover plate and the metal back plate.

[0033] Furthermore, by arranging a white ink layer on the surface of the insulating layer facing away from the substrate, it can achieve a light-evening effect, thereby improving the display effect of the display module.

[0034] Furthermore, by providing at least one black ink layer in the light-shielding area and disposing it between the conductive layer and the substrate, the display effect of the display module can be improved.

[0035] Furthermore, by providing at least one patterned icon ink, a clear and eye-catching icon or pattern can be formed on the surface of the product, which not only enhances the aesthetics of the product but also improves the user's visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0037] Figure 1 It is a schematic diagram of a display module in the prior art;

[0038] Figure 2 It is a cross-sectional view of a display module in the prior art;

[0039] Figure 3 This is a radiation interference test diagram of a vehicle-mounted display device in the prior art;

[0040] Figure 4 is a schematic cross-sectional view of a display module in this application;

[0041] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0042] Figure 6 is an exploded view of the display module in this application;

[0043] Figure 7 yes Figure 6 Enlarged view of point B in the middle;

[0044] Figure 8 is a schematic cross-sectional view of the cover plate in this application;

[0045] Figure 9 is a cross-sectional schematic diagram of another embodiment of the display module of the present application;

[0046] Figure 10 yes Figure 9 Enlarged view of point C in the middle;

[0047] Figure 11 is a perspective view of the vehicle-mounted display device in this application;

[0048] Figure 12 This is a radiation interference test diagram of the vehicle-mounted display device of this application.

[0049] The reference numerals are as follows:

[0050] 1. Cover plate; 11. Base; 111. Transparent area; 112. Shading area; 12. Conductive layer; 13. Insulating layer; 131. Opening; 14. Black ink layer; 141. First black ink layer; 142. Second black ink layer; 15. White ink layer; 16. Icon layer; 2. Metal back plate; 21. Groove; 22. Protrusion; 23. Boss; 3. Conductive foam; 4. Display panel; 41. Gate driver IC; 42. Source driver IC; 43. Display area; 44. Border area; 5. Middle frame; 51. Connecting edge; 52. Side edge; 53. Support edge; 6. Buffer gasket; 7. Double-sided tape. DETAILED DESCRIPTION

[0051] The following describes preferred embodiments of the present invention with reference to the accompanying drawings and in conjunction with a washing machine. Those skilled in the art should understand that these embodiments are merely intended to illustrate the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although the following embodiments are illustrated using an in-vehicle display device, this is not restrictive. The technical solution of the present invention is also applicable to other types of display devices, such as mobile phone display devices, and such a change in the application object does not deviate from the principles and scope of the present invention.

[0052] It should be noted that, in the description of this application, terms such as "upper", "lower", "inner", "top", and "bottom" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.

[0053] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0054] See also Figure 1 In the prior art, the vehicle-mounted display device includes a display module. The display panel 4 in the display module includes a display area 43, a frame area 44 surrounding the display area 43, and a plurality of frames arranged in the longitudinal direction of the frame area 44 (such as Figure 1 The source driver IC 42 is disposed on one surface of the frame region 44 in the width direction (as shown in the vertical direction) and the source driver IC 42 is disposed on the other surface of the frame region 44 in the vertical direction (as shown in the vertical direction). Figure 1The gate driver IC 41 is mounted on one surface of the display module (in the left and right directions shown). Among them, the source driver IC 42 and the gate driver IC 41 are easily interfered with by external electromagnetic signals, which may cause the display panel 4 to have problems such as image jitter, color distortion, or even complete inability to display, seriously affecting the display effect and user experience. In order to reduce or eliminate such interference, a conductive tape 5 is usually attached to the side of the source driver IC 42 to reflect and absorb external electromagnetic signals, thereby improving the anti-radiation interference performance of the display module. However, since the gate driver IC 41 side is narrow (such as Figure 1 The conductive tape cannot be applied to the gate driver IC 41, which makes it susceptible to interference from electromagnetic signals.

[0055] In order to solve the problem that the gate driver IC 41 cannot effectively shield electromagnetic signals, resulting in the vehicle-mounted display device failing to pass the EMC test, the vehicle-mounted display device of the present application includes a display module of the following preferred embodiment.

[0056] See also Figure 4-12 The display module includes a metal back plate 2, a cover plate 1, a conductive part and a display panel 4. Among them, the conductive part is a conductive foam 3, and the display panel 4 includes a display area 43 and a frame area 44 surrounding the display area 43. The display panel 4 also includes a source driver IC 42 and a gate driver IC 41. The source driver IC 42 is arranged on the surface of the frame area 44 in the length direction, and the gate driver IC 41 is arranged on the surface of the frame area 44 in the width direction. The cover plate 1 includes a substrate 11 and a conductive layer 12 arranged on the substrate 11. The substrate 11 includes a light-transmitting area 111 and a light-shielding area 112 surrounding the light-transmitting area 111. The orthographic projection of the light-transmitting area 111 on the substrate 11 is aligned with the orthographic projection of the display area 43 on the substrate 11, and the orthographic projection of the light-shielding area 112 on the substrate 11 covers the orthographic projection of the frame area 44 on the substrate 11. It can be seen that Figure 11 .

[0057] In an exemplary embodiment, the present application does not fix the locations of the source driver IC 42 and the gate driver IC 41, and those skilled in the art can adjust them as needed, as long as they are arranged in the border area 44 of the display panel 4. For example, the source driver IC 42 and the gate driver IC 41 are both arranged on the surface of the border area 44 in the length direction or the width direction of the border area 44.

[0058] See next Figure 4-69. The conductive layer 12 is arranged opposite to the metal back plate 2, so that the conductive foam 3 electrically connects the conductive layer 12 to the metal back plate 2 and forms a receiving space with the cover plate 1 and the metal back plate 2, and the receiving space can accommodate the display panel 4. The light-emitting side of the display panel 4 faces the conductive layer 12, and the conductive layer 12 covers the entire substrate 11, that is, the positive projection of the conductive layer 12 on the substrate 11 covers the positive projection of the source driver IC 42 and the gate driver IC 41 on the substrate 11, so that the conductive layer 12 can form an electromagnetic shielding layer when electrically connected to the metal back plate 2, effectively reflecting and absorbing external electromagnetic signals, thereby ensuring that the source driver IC 42 and the gate driver IC 41 will not be interfered with by external electromagnetic signals, thereby improving the anti-radiation interference performance of the display module, so that the display device can meet the EMC test standards.

[0059] In an exemplary embodiment, the specific arrangement of the conductive layer 12 is not fixed in this application, and those skilled in the art can adjust it as needed. For example, the conductive layer 12 is only arranged in a portion of the light-shielding area 112, so that the orthographic projection of the conductive layer 12 on the substrate 11 can cover the orthographic projection of the source driver IC 42 and the gate driver IC 41 on the substrate 11. Alternatively, the conductive layer 12 is only arranged in the light-shielding area 112, and the orthographic projection of the conductive layer 12 on the substrate 11 completely covers the light-shielding area 112 of the substrate 11, so that the orthographic projection of the conductive layer 12 on the substrate 11 covers the orthographic projection of the source driver IC 42 and the gate driver IC 41 on the substrate 11. Alternatively, the conductive layer 12 is only arranged in the light-shielding area 112, and the orthographic projection of the conductive layer 12 on the substrate 11 covers the orthographic projection of the gate driver IC 41 on the substrate 11, but does not cover the orthographic projection of the source driver IC 42 on the substrate 11. In this case, in order to prevent the source driver IC 42 from being interfered with by external electromagnetic signals, a conductive tape can be attached to the source driver IC 42.

[0060] See next Figure 4-7 9, the display module also includes a middle frame 5 located in the accommodation space, which is mainly used to support the display panel 4. In the prior art, in order to enable the middle frame 5 to have a good supporting effect on the display panel 4 and ensure the stability and flatness of the display panel 4, as shown in FIG. Figure 2 As shown, a boss 23 is usually provided on the inner wall of the metal back plate 2 for supporting the middle frame 5. The middle frame 5 is L-shaped and includes a side edge 52 and a supporting edge 53. The side edge 52 is close to the inner wall of the metal back plate 2 and extends away from the cover plate 1. The supporting edge 53 is provided on the boss 23 and extends along the side edge 52 away from the side edge 52. It is bonded to the frame area 44 of the display panel 4 through the buffer gasket 6. However, the presence of the boss 23 increases the width of the supporting edge 53 (as shown in FIG. Figure 2The left-right dimensions shown are not conducive to achieving a narrow frame for the vehicle-mounted display device. In order to achieve a narrow frame for the vehicle-mounted display device, the metal back plate 2 of the present application omits the solution of the boss 23 and sets the middle frame 5 to a Z-shaped structure. The middle frame 5 of the Z-shaped structure includes a connecting edge 51, a side plate 52 and a supporting edge 53, wherein the connecting edge 51 is connected to the side of the metal back plate 2 close to the cover plate 1 by a double-sided tape 7, thereby enhancing the connection stability between the middle frame 5 and the metal back plate 2. The side edge 52 extends along the connecting edge 51 in a direction away from the cover plate 1, and the supporting edge 53 extends along the side edge 52 in a direction away from the side edge 52, and is bonded to the frame area 44 of the display panel 4 through the buffer gasket 6, thereby being able to support the display panel 4 while also protecting the display panel 4. The metal back plate 2 of the present application does not need to be provided with a boss 23 on its inner wall to support the display panel 4. Instead, a Z-shaped middle frame 5 is used. The connecting edge 51 of the middle frame 5 is connected to the side of the metal back plate 2 close to the cover plate 1. The supporting edge 53 is used to support the display panel 4. Therefore, there is no need to increase the width of the supporting edge 53 (such as Figure 3-4 The dimensions in the left and right directions shown) enable the vehicle-mounted display device to have a narrow frame.

[0061] It should be noted that when the vehicle-mounted display device does not pursue a narrow frame, the metal back plate 2 and the middle frame 5 can also adopt the structure of the existing technology, that is, a boss 23 is set on the inner wall of the metal back plate 2, and an L-shaped middle frame 5 is set on the boss 23 to support the display panel 4.

[0062] See also Figure 8 The cover plate 1 further includes an insulating layer 13, two black ink layers 14, a white ink layer 15, and an icon layer 16. The two black ink layers are both located in the light-shielding area 112 and disposed between the conductive layer 12 and the substrate 11. The two black ink layers 14 are respectively a first black ink layer 141 and a second black ink layer 142. The first black ink layer 141 is disposed on the surface of the substrate 11 opposite to the metal backplate 2, and the second black ink layer 142 is disposed on the surface of the first black ink layer 141 facing away from the substrate 11. As a result, the two black ink layers 14 are stacked in the light-shielding area 112 of the substrate 11, thereby improving the display effect of the display module.

[0063] Of course, the number of black ink layers 14 is not fixed in this application, and those skilled in the art can adjust it as needed. For example, the number of black ink layers 14 can also be 1, 3, or other numbers, as long as the display effect of the display module can be improved.

[0064] See next Figure 8 The icon layer 16 is located in the light shielding area 112 and is disposed between the conductive layer 12 and the second black ink layer 142. Figure 11As can be seen from the perspective view, the icon layer 16 includes 8 patterned icon inks, through which the user can perform corresponding operations according to these patterned icon inks.

[0065] In the exemplary embodiment, the specific configuration of the icon layer 16 is not fixed in this application and can be adjusted by those skilled in the art as needed. For example, the icon layer 16 can also be a patterned decorative ink to improve the aesthetics of the vehicle-mounted display device.

[0066] See next Figure 8 , the insulating layer 13 is arranged on the surface of the conductive layer 12 away from the substrate 11, and covers the entire conductive layer 12, that is, the orthographic projection of the insulating layer 13 on the substrate 11 covers the entire substrate 11. Two openings 131 are provided on the insulating layer 13 corresponding to the shading area 112 to expose the conductive layer 12, so that the conductive foam 3 can be electrically connected to the conductive layer 12 through the openings 131. The white ink layer 15 is located in the shading area 112, and on the surface of the insulating layer 13 away from the substrate 11, which can play a role in light uniformity. Among them, the orthographic projection of the white ink layer 15 on the substrate 11 does not cover the orthographic projection of the opening 131 on the substrate 11, so that the two openings 131 can be exposed, thereby facilitating the electrical connection between the cover plate 11 and the back plate body through the conductive foam 3.

[0067] In the exemplary embodiment, the number of openings 131 is not fixed in this application and can be adjusted by those skilled in the art as needed. For example, the number of openings 131 can be 1, 3, or another number, as long as the metal back plate 2 and the cover plate 11 can achieve conductive connection.

[0068] In the exemplary embodiment, the present application does not have a fixed arrangement for the white ink layer 15 on the insulating layer 13, and those skilled in the art may adjust the arrangement as needed. For example, the white ink layer 15 may be arranged on the surface of the insulating layer 13 facing away from the substrate 11, with its orthographic projection on the substrate 11 overlapping the orthographic projection of the opening 131 on the substrate 11. In this case, the opening 131 extends through the white ink layer 15. Furthermore, in other preferred embodiments, the arrangement of the white ink layer 15 is not mandatory, and those skilled in the art may adjust the arrangement as needed.

[0069] See also Figure 6-7 The metal back plate 2 is provided with a groove 21, the conductive foam 3 is inserted into the groove 21 and electrically connected to the metal back plate 2. The above arrangement not only improves the EMC performance of the display module but also facilitates the installation of the cover plate 1 and the metal back plate 2.

[0070] In the exemplary embodiment, the present application does not specify the specific arrangement of the conductive member, and those skilled in the art may select the arrangement as needed. For example, the conductive member may be a conductive adhesive. When the conductive member is a conductive adhesive, the conductive adhesive fills the groove 21 and the opening 131, thereby achieving a conductive connection between the metal back plate 2 and the cover plate 11.

[0071] In the exemplary embodiment, the specific configuration of the metal back plate 2 is not fixed in this application, and those skilled in the art can adjust it as needed. For example, a protrusion 22 is formed on the metal back plate 2, and the protrusion 22 is inserted into the opening 131 as a conductive member and electrically connected to the conductive layer 12. Figure 9-10 Alternatively, the depth of the protrusion 22 is less than the depth of the opening 131, so that the receiving groove formed by the protrusion 22 and the opening 131 can accommodate the conductive member, so that the cover plate 1 and the metal back plate 2 can be electrically connected through the conductive member.

[0072] Radiation interference tests were conducted on the vehicle-mounted display device of the present application and the vehicle-mounted display device of the prior art, wherein the radiation interference diagram is shown in FIG. Figure 3 and Figure 12 shown.

[0073] from Figure 3 and 12 It can be seen that the vehicle-mounted display device of the present application has significant advantages in resisting electromagnetic radiation interference compared with the prior art. Specifically, both can maintain a stable working state in electromagnetic radiation environments with a frequency of 100KHZ-500KHZ and 2MHZ-30MHZ, and are not easily interfered with. However, in an electromagnetic radiation environment with a frequency of 500KHZ-2MHZ, the vehicle-mounted display device of the prior art is susceptible to interference due to the design defect that the gate driver IC41 is not attached with conductive tape, and the radiation peak value mostly exceeds the average limit value. In contrast, the radiation peak value of the vehicle-mounted display device of the present application within this frequency range does not exceed the average limit value, showing excellent resistance to radiation interference and meeting the EMC test standards. The average limit value is Figure 3 and Figure 12 The center is the thick solid line with a frequency of 500HZ-2MHZ and a radiation interference value of 25dBuV / m.

[0074] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims of this application, any of the claimed embodiments may be used in any combination.

[0075] Thus far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present application.

Claims

1. A display module, characterized in that: The display module includes: Metal back panel; A cover plate, comprising a base and a conductive layer disposed on the base, wherein the conductive layer is disposed opposite to the metal back plate; A conductive member electrically connecting the conductive layer to the metal back plate and forming a receiving space with the cover plate and the metal back plate; A display panel is accommodated in the accommodating space, comprising a gate driver IC arranged on the side, and the light-emitting side of the display panel faces the conductive layer; wherein the orthographic projection of the gate driver IC on the substrate is covered by the orthographic projection of the conductive layer on the substrate.

2. The display module according to claim 1, wherein: The cover plate includes a light-transmitting area and a light-shielding area surrounding the light-transmitting area; the display panel includes a display area and a frame area surrounding the display area; The orthographic projection of the light-transmitting area on the substrate is aligned with the orthographic projection of the display area on the substrate, and the orthographic projection of the light-shielding area on the substrate covers the orthographic projection of the frame area on the substrate; Furthermore, the gate driver IC is arranged in the frame area, and the conductive layer at least covers the light-shielding area.

3. The display module according to claim 1 or 2, characterized in that: The conductive layer covers the entire substrate.

4. The display module according to claim 1 or 2, wherein: The conductive layer is conductive ink.

5. The display module according to claim 2, wherein: The cover plate further comprises: an insulating layer, disposed on a surface of the conductive layer facing away from the substrate, and having at least one opening formed on the insulating layer in the light-shielding area to expose the conductive layer; Wherein, the conductive member is electrically connected to the conductive layer through the opening.

6. The display module according to claim 5, wherein: A groove is formed on the metal back plate, and the conductive member is inserted into the groove and electrically connected to the conductive layer.

7. The display module according to claim 1 or 6, characterized in that: The conductive member is conductive foam or conductive glue.

8. The display module according to claim 5, wherein: A protrusion is formed on the metal back plate, and the protrusion serves as the conductive member and is inserted into the opening and electrically connected to the conductive layer.

9. The display module according to claim 5, wherein: The cover plate further comprises: The white ink layer is located in the light-shielding area and is arranged on the surface of the insulating layer facing away from the substrate.

10. The display module according to claim 2, wherein: The cover plate further comprises: At least one layer of black ink is located in the light-shielding area and is disposed between the conductive layer and the substrate.

11. The display module according to claim 10, wherein: The cover plate further comprises: An icon layer is located in the light-shielding area and is disposed between the conductive layer and the at least one layer of black ink; wherein the icon layer includes at least one patterned icon ink.

12. A display device, characterized in that: The display device comprises the display module according to any one of claims 1 to 11.

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