CN113963632B

CN113963632B - Display module and display device

Info

Publication number: CN113963632B
Application number: CN202111241884.6A
Authority: CN
Inventors: 袁月; 吴海妍; 熊志勇
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2023-09-12
Anticipated expiration: 2041-10-25
Also published as: CN113963632A

Abstract

The embodiment of the invention provides a display module, relates to the technical field of display, and aims to solve the problem that static electricity is easy to accumulate at the edge of a display panel. The display module includes: a display panel having an edge; a support film positioned on one side of the display panel away from the light emitting side; foam cotton is positioned at one side of the support film far away from the display panel; the first conductive part is positioned at one side of the display panel away from the light emitting side; the orthographic projection of the first conductive part on the plane of the display panel is at least partially positioned in the display area, and the orthographic projection of the first conductive part on the plane of the display panel is at least partially overlapped with the edge; the grounding part is positioned at one side of the foam, which is far away from the support film; the grounding portion is in contact with the first conductive portion.

Description

Display module and display device

[ field of technology ]

The present invention relates to the field of display technologies, and in particular, to a display module and a display device.

[ background Art ]

With the continuous development of science and technology, more and more display devices are widely applied to daily life and work of people, and become an indispensable important tool for people today. Moreover, with the continuous development of display technology, the display effect requirements of consumers on the display are also continuously improved.

At present, static electricity is easily generated at the edge position of the display panel in the production, test and use processes of the display panel, and the static electricity is accumulated to a certain extent, so that the edge of the display panel is abnormally lightened due to the static electricity discharge phenomenon. Further, if static electricity is conducted into the display panel, damage is caused to electronic devices in the display panel.

[ invention ]

In view of the above, the embodiment of the invention provides a display module and a display device for solving the problem that static electricity is easily accumulated at the edge of a display panel.

In one aspect, an embodiment of the present invention provides a display module, including:

a display panel having an edge;

a support film positioned on one side of the display panel away from the light emitting side;

foam cotton is positioned at one side of the support film far away from the display panel;

the front projection of the first conductive part on the plane of the display panel is at least partially positioned in the display area, and the front projection of the first conductive part on the plane of the display panel is at least partially overlapped with the edge;

the grounding part is positioned at one side of the foam, which is far away from the supporting film; the grounding portion is electrically connected with the first conductive portion.

In another aspect, an embodiment of the present invention provides a display device, including the display panel described above.

According to the display module and the display device provided by the embodiment of the invention, the grounding part and the first conductive part are arranged on one side of the display panel far away from the light emitting side, and the orthographic projection of the first conductive part on the plane of the display panel overlaps with the edge of the display panel, so that static electricity generated at the edge of the display panel can be conducted to the grounding part through the first conductive part for conduction. On the one hand, the problem of edge brightening of the display panel in the prior art can be solved, and on the other hand, static electricity can be prevented from entering the display panel, so that the reliability of internal devices of the display panel is guaranteed. In addition, in the embodiment of the invention, the orthographic projection of the first conductive part on the plane of the display panel is at least partially positioned in the display area, so that the area of the first conductive part can be as large as possible while overlapping the orthographic projection of the first conductive part on the plane of the display panel and the edge of the display panel. The arrangement is more favorable for improving the electrostatic conductivity of the first conductive part, so that static electricity can be more quickly dispersed from the edge of the display panel, and the reliability of the display panel is improved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic top view of a display module according to an embodiment of the invention;

fig. 2 is a schematic top view of another display module according to an embodiment of the invention;

fig. 3 is a schematic cross-sectional view of a display module near a first edge according to an embodiment of the invention;

FIG. 4 is a schematic cross-sectional view of a display panel near a second edge according to an embodiment of the present invention;

FIG. 5 is a schematic top view of a foam according to an embodiment of the present invention;

FIG. 6 is a schematic top view of a support film according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a support film according to an embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of another display module provided by an embodiment of the invention near a first edge;

FIG. 9 is a schematic cross-sectional view of another display module provided by an embodiment of the invention at a position near the second edge;

FIG. 10 is a schematic cross-sectional view of a display module near a second edge according to another embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of a display module near a first edge according to another embodiment of the present invention;

fig. 12 is a schematic diagram of a display device according to an embodiment of the invention.

[ detailed description ] of the invention

For a better understanding of the technical solution of the present invention, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be understood that although the terms first, second, etc. may be used in embodiments of the present invention to describe the conductive portions, these conductive portions should not be limited by these terms. These terms are only used to distinguish each of the differently located conductive portions from one another. For example, a first conductive portion may also be referred to as a second conductive portion, and similarly, a second conductive portion may also be referred to as a first conductive portion, without departing from the scope of embodiments of the present invention.

The embodiment of the invention provides a display module, which comprises a display panel, a support film, foam, a first conductive part and a grounding part. As shown in fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic top view of a display module according to an embodiment of the present invention, fig. 2 is a schematic top view of another display module according to an embodiment of the present invention, fig. 3 is a schematic cross-sectional view of a display module according to an embodiment of the present invention near a first edge, fig. 4 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention near a second edge, and for more clarity, only the first conductive portion 41 and the display panel 1 are shown in fig. 1 and fig. 2. As shown in fig. 1, 2, 3 and 4, the display panel 1 has an edge 10.

As illustrated in fig. 1 and 2, the display panel 1 includes a display area 11 and a non-display area 12. The display area 11 includes a plurality of pixel units (not shown) and signal lines (not shown) electrically connected to the pixel units, and the non-display area 12 includes wirings and/or driving circuits. The display panel may be a display panel adopting a self-luminous technology, that is, the pixel unit may include any one of an organic light emitting diode (Organic Light Emitting Diode, abbreviated as OLED), a quantum dot light emitting diode (Quantum Dots Light Emitting Diode, abbreviated as QLED), and a Micro light emitting diode (Micro Light Emitting Diode, abbreviated as Micro-LED). Alternatively, the display panel may be a liquid crystal display panel (Liquid Crystal Display, LCD for short).

Illustratively, as shown in fig. 1 and 2, the non-display area 12 includes a first non-display area 121. The first non-display area 121 at least partially surrounds the display area 11. The edge 10 includes a first edge 101. The first non-display area 121 is adjacent to the first edge 101. The first edge 101 may be considered as the edge of the first non-display area 121 remote from the display area 11.

Currently, in manufacturing the display panel 1, a large plate including a plurality of display panels 1 is generally manufactured on a substrate having a large area through a thin film process, and then the large plate is cut to form the display panel 1 having a smaller area than the large plate. For example, the first edge 101 of the display panel 1 may correspond to a cutting trace when cutting a large plate.

With the development of display technology, a structure in which a through hole is provided in the interior of a display panel to accommodate a light sensor such as a camera or an iris sensor is now proposed, and as shown in fig. 2, the display panel 1 includes a through hole 20. For example, in manufacturing the display panel 1 having the structure shown in fig. 2, the through holes 20 may be formed on the substrate through a dicing process, and then each film structure in the display panel 1 may be manufactured on the substrate including the through holes 20. The location of the through hole 20 is not used for display. After the fabrication of each film structure in the display panel 1 is completed, the above-described light sensor may be disposed at a position corresponding to the through hole 20.

As shown in fig. 2, the edge 10 of the display panel includes a second edge 102 in addition to the first edge 101, the second edge 102 surrounding the through hole 20. For example, when the through-hole 20 is formed through a cutting process, the second edge 102 may correspond to a cutting trace when the through-hole 20 is formed by cutting. As shown in fig. 2, the display panel 1 including the through holes 20 may be regarded as being formed in a ring-shaped structure in which the first edge 101 is an outer edge of the display panel 1 and the second edge 102 is an inner edge of the display panel 1. The first edge 101 surrounds the second edge 102.

As shown in fig. 3 and 4, the display module 100 further includes a support film 2, foam 3, and a ground part 5. Wherein, the support film 2 is located at a side of the display panel 1 away from the light emitting side of the display module 100. The arrow direction z in fig. 3 and 4 indicates the light emitting direction of the display module 100. The support film 2 is provided to provide a supporting function to the display panel 1. The foam 3 is located on the side of the support film 2 remote from the display panel 1. Foam 3 includes a foam layer 31. The foaming layer 31 can protect the display panel 1, and in the moving or using process of the display module 100, if the display module 100 is impacted or subjected to other external forces, the foaming layer 31 can absorb stress, plays a certain stress buffering role on the display panel 1, and protects the display panel 1 from being damaged. The grounding part 5 is positioned on one side of the foam 3 away from the support film 2. In the embodiment of the present invention, the ground portion 5 is electrically connected to the first conductive portion 41.

As shown in fig. 4, in forming the display module 100 including the through-holes 20, the support film 2, the foam 3, and the ground portion 5 are formed with a through-hole structure at positions corresponding to the through-holes 20 of the display panel 1.

When the first conductive portion 41 is disposed, the embodiment of the invention may enable the first conductive portion 41 to be located on a side of the display panel 1 away from the light emitting side, and enable the orthographic projection of the first conductive portion 41 on the plane of the display panel to at least partially overlap with the edge 10 of the display panel 1. That is, the orthographic projection of the first conductive portion 41 on the plane of the display panel is disposed near the edge 10 of the display panel 1. In the embodiment of the present invention, the front projection of the first conductive portion 41 on the plane of the display panel is at least partially located in the display area 11 of the display panel 1. Fig. 1 and 2 are schematic diagrams showing that the front projection of the first conductive portion 41 on the plane of the display panel 1 covers the display area 11.

As illustrated in fig. 1 and 3, the first conductive portion 41 includes a first sub-conductive portion 411, and an orthographic projection of the first sub-conductive portion 411 on a plane of the display panel at least partially overlaps the first edge 101. As shown in fig. 2 and 4, the first conductive portion 41 further includes a second sub-conductive portion 412, and an orthographic projection of the second sub-conductive portion 412 on a plane of the display panel at least partially overlaps the second edge 102. In addition, the orthographic projections of the first sub-conductive portion 411 and the second sub-conductive portion 412 on the plane of the display panel are at least partially located in the display area 11.

In the display module 100 provided by the embodiment of the invention, the grounding portion 5 and the first conductive portion 41 are disposed on one side of the display panel 1 far from the light emitting side, and the front projection of the first conductive portion 41 on the plane of the display panel 1 overlaps the edge 10 of the display panel 1, so that static electricity generated at the edge 10 of the display panel 1 can be conducted to the grounding portion 5 through the first conductive portion 41. On the one hand, the problem that the edge 10 of the display panel 1 in the prior art shines can be solved, and in addition, static electricity can be prevented from entering the display panel 1, so that the reliability of the internal devices of the display panel 1 is guaranteed. Moreover, in the embodiment of the present invention, by making the front projection of the first conductive portion 41 on the plane of the display panel 1 at least partially located in the display area 11, the area of the first conductive portion 41 can be made as large as possible while ensuring that the front projection of the first conductive portion 41 on the plane of the display panel 1 overlaps with the edge 10 of the display panel 1. The arrangement is more beneficial to improving the electrostatic conductivity of the first conductive portion 41, so that static electricity can be more quickly evacuated from the edge 10 of the display panel 1, and the reliability of the display panel 1 is improved.

Illustratively, embodiments of the present invention may place the edge of the first conductive portion 41 in alignment with the edge 10 of the display panel 1. Specifically, the embodiment of the present invention may align the edge of the first sub-conductive portion 411 with the first edge 101 of the display panel 1, and align the edge of the second sub-conductive portion 412 with the second edge 102 of the display panel. The first sub-conductive portion 411 is extended from the first edge 101 of the display panel 1 in a direction approaching the display area 11 of the display panel 1, and the first sub-conductive portion 411 is cut off at a position corresponding to the display area 11; the second sub-conductive portion 412 extends from the second edge 102 of the display panel 1 in a direction approaching the display area 11 of the display panel 1, and the second sub-conductive portion 412 is also cut off at a position corresponding to the display area 11.

As shown in fig. 3 and 4, the display module 100 further includes a second conductive portion 42. The second conductive portion 42 is located between the first conductive portion 41 and the ground portion 5. The second conductive portion 42 is in contact with the first conductive portion 41. The first conductive portion 41 is electrically connected to the ground portion 5 through the second conductive portion 42.

Illustratively, as shown in fig. 3, the second conductive portion 42 includes a third sub-conductive portion 421. The first sub conductive part 411 is electrically connected to the ground part 5 through the third sub conductive part 421. In addition to the third sub-conductive portion, as shown in fig. 4, the second conductive portion 42 further includes a fourth sub-conductive portion 422, and the second sub-conductive portion 412 is electrically connected to the ground portion 5 through the fourth sub-conductive portion 422.

In the embodiment of the present invention, as shown in fig. 3 and 4, the foam 3 includes a foam layer 32 in addition to the foaming layer 31. One part of the foam layer 32 is located between the foam layer 31 and the support film 2, and the other part of the foam layer 32 is located between the second conductive portion 42 and the support film 2. The foam layer 32 may be provided to bond the foam layer 31 and the second conductive portion 42 to the support film 2, respectively.

Illustratively, the foam layer 32 includes a conductive adhesive. The conductive paste includes conductive particles.

In the embodiment of the present invention, the foam adhesive layer 32 provided by using the conductive adhesive may be reused as the first conductive portion 41. By this arrangement, the foam layer 32 can serve both as a bonding layer 31 and a support film 2, and as an electrostatic conductive medium for the foam layer 32. That is, not only the structural stability of the display module 100 can be improved, but also the conduction path of static electricity can be increased, and static electricity generated at the edge 10 of the display panel can be conducted away in time. Moreover, the foam adhesive layer 32 is multiplexed into the first conductive portion 41, so that the adhesive layer with an adhesive function and the conductive portion with an electrostatic conduction function are not required to be respectively arranged, which is beneficial to reducing the thickness of the display module 100.

Illustratively, embodiments of the present invention may provide the foam layer 32 as a full-face structure.

Alternatively, as shown in fig. 5, fig. 5 is a schematic top view of a foam according to an embodiment of the present invention, and the foam adhesive layer 32 may be distributed in a grid shape in a plane where the foam 3 is located. So set up, when pasting foam 3 with support film 2, the gaseous discharge in the foam layer 31 can be through the net in the foam layer 32, can avoid gaseous restriction between foam layer 31 and foam layer 32.

As shown in fig. 6 and 7, fig. 6 is a schematic top view of a support film according to an embodiment of the present invention, and fig. 7 is a schematic cross-sectional view of a support film according to an embodiment of the present invention, where the support film 2 includes a first organic layer 21, a second organic layer 22, and a support film adhesive layer 23, and the support film adhesive layer 23 is located between the first organic layer 21 and the second organic layer 22.

Optionally, the supporting film adhesive layer 23 includes a conductive adhesive. The conductive paste includes conductive particles.

In the embodiment of the present invention, the supporting film adhesive layer 23 made of conductive adhesive may be reused as the first conductive portion 41. By this arrangement, the supporting film adhesive layer 23 can serve both as a bonding agent for the first organic layer 21 and the second organic layer 22 and as an electrostatic conductive medium for the supporting film adhesive layer 23. That is, not only the structural stability of the display module 100 can be improved, but also the conduction path of static electricity can be increased, and static electricity generated at the edge 10 of the display panel can be conducted away in time. Moreover, the embodiment of the invention is beneficial to reducing the thickness of the display module 100 by multiplexing the supporting film adhesive layer 23 into the first conductive part 41 without arranging an adhesive layer with an adhesive function and a conductive part with an electrostatic conduction function.

For example, the support film adhesive layer 23 may be configured as a whole surface structure in the embodiment of the present invention.

Alternatively, as shown in fig. 6, the supporting film adhesive layer 23 may be distributed in a grid shape in the plane of the supporting film 2 according to the embodiment of the present invention. By such arrangement, the area of the supporting film adhesive layer 23 can be reduced while ensuring that static electricity has more conductive paths. Because the elastic modulus of the supporting film adhesive layer 23 is smaller, by adopting the arrangement mode of the embodiment of the invention, the supporting film adhesive layer 23 has the conductive function and simultaneously can ensure that the supporting film 2 provides better support for the display panel 1.

As shown in fig. 7, the surface of the first organic layer 21 adjacent to the second organic layer 22 includes a groove 210, and at least a portion of the supporting film adhesive layer 23 may be disposed in the groove 210 to reduce the thickness of the supporting film 2.

In manufacturing the support film 2 having the structure shown in fig. 7, the first organic layer 21 is formed first, and then the lattice-shaped grooves 210 are formed on the first organic layer 21 using an exposure etching process. And then preparing a supporting film adhesive layer 23 in the groove 210, and attaching or coating a second organic layer 22 on the side, away from the first organic layer 21, of the supporting film adhesive layer 23 after the supporting film adhesive layer 23 is cured.

Illustratively, the materials of the first organic layer 21 and the second organic layer 22 described above include polyimide.

As shown in fig. 7 and 8, fig. 8 is a schematic cross-sectional view of another display module provided in an embodiment of the present invention near the first edge, where at least a portion of the supporting film adhesive layer 23 is exposed on the surface of the supporting film 2. Specifically, when the positions of the support film 2 and the display panel 1 are matched, as shown in fig. 8, a portion of the support film adhesive layer 23 may be exposed on the surface of the support film 2 near the edge 10, and another portion of the support film adhesive layer 23 may be exposed on the surface of the support film 2 near the second conductive portion 42. Thus, static electricity at the edge 10 of the display panel 1 can be more easily introduced into the first conductive portion 41 and transferred to the ground portion 5 via the second conductive portion 42.

It can be appreciated that in the embodiment of the present invention, the supporting film adhesive layer 23 and the foam adhesive layer 32 are formed by conductive adhesive, so that the supporting film adhesive layer 23 and the foam adhesive layer 32 have electrostatic conductivity. In this way, the supporting film adhesive layer 23 and the foam adhesive layer 32 can be reused as the first conductive portion 41, so as to reduce the possibility of static electricity accumulation in the display module 100.

In the embodiment of the present invention, the area of the foaming layer 31 may be smaller than that of the display panel 1. When the foaming layer 31 and the display panel 1 are disposed, as shown in fig. 3 and 4, the embodiment of the present invention may have a distance between the foaming layer 31 and the edge 10 of the display panel 1 in a direction parallel to the plane of the display panel 1. As shown in fig. 3, the embodiment of the present invention may enable the distance D1 between the foaming layer 31 and the first edge 101 of the display panel 1 along the direction parallel to the plane of the display panel 1. As shown in fig. 4, the foaming layer 31 is set to have a distance D2 from the second edge 102 of the display panel 1. D1 and D2 are both greater than 0. In this way, the foaming layer 31 can be contracted in a direction away from the edge 10 of the display panel 1, and the edge of the foaming layer 31 is terminated at a side of the edge 10 of the display panel 1 close to the display area 11 of the display panel 1, so that the area where the foaming layer 31 is contracted with respect to the edge 10 of the display panel 1 can be made as a space for disposing the second conductive portion 42 such that the foaming layer 31 and the second conductive portion 42 overlap in a direction parallel to the plane in which the display panel 1 is located. For example, the foaming layer 31 and the second conductive part 42 may be disposed at the same horizontal position in the display module 100. Thus, the thickness of the display module 100 is advantageously reduced.

It should be noted that D1 and D2 may be equal or different, which is not limited in this embodiment of the present invention.

As shown in fig. 9, fig. 9 is a schematic cross-sectional view of another display module provided by the embodiment of the present invention near the second edge, and in a direction parallel to the plane of the display panel 1, the embodiment of the present invention may make the shortest distance D3 between the edge of the foaming layer 31 and the edge of the grounding portion 5 greater than 0. For example, the shortest distance D3 may be greater than the length of the second conductive portion 42, where the length direction of the second conductive portion 42 is parallel to the extending direction of the straight line representing the shortest distance D3. That is, the contraction distance of the foamed layer 31 with respect to the edge of the ground portion 5 is set large. By the arrangement, the second conductive part 42 can be fully ensured to have a sufficient accommodating space, the situation that part of the second conductive part 42 needs to be laminated with the foaming layer 31 in the thickness direction of the display module 100 due to insufficient accommodating space of the second conductive part 42 when the second conductive part 42 is manufactured is avoided, and the display module 100 can be ensured to have smaller thickness.

As shown in fig. 10, fig. 10 is a schematic cross-sectional view of another display module provided by the embodiment of the present invention near the second edge, where the foam 3 includes an opening 30, and a shortest distance D4 between the opening 30 and the edge 10 of the display panel along a direction parallel to the plane of the display panel is greater than 0 along a direction parallel to the plane of the display panel. The second conductive portion 42 is located within the opening 30. By such arrangement, the second conductive portion 42 and the foaming layer 31 are overlapped in the direction parallel to the plane of the display panel 1, and the thickness of the display module 100 is reduced, so that the foaming layer 31 is arranged at the position corresponding to the edge 10 of the display panel 1, and the edge 10 of the display panel 1 can be well protected.

For example, in manufacturing the display module 100 having the structure shown in fig. 10, the embodiment of the present invention may first attach the foam 3 and the ground portion 5 in alignment to form a single body. Then, the foam 3 is subjected to a hole digging operation to form an opening 30 in the foam 3, and then the opening 30 is filled with a conductive material to form a second conductive portion 42. Then, the whole including the ground portion 5, the foam 3 and the second conductive portion 42 is aligned and bonded to the support film 2. And then the whole body comprising the grounding part 5, the foam 3, the second conductive part 42 and the support film 2 is aligned and attached to the display panel 1.

Specifically, when forming the opening 30 in the foam 3, if the supporting film adhesive layer is multiplexed to the first conductive portion 41, the embodiment of the present invention may perform hole digging operation on both the foam layer 31 and the foam adhesive layer 32 to form the opening 30 in the foam 3. If the foam layer is multiplexed to the first conductive portion 41, the embodiment of the present invention may perform the hole digging operation only on the foaming layer 31 to form the opening 30.

For example, as shown in fig. 10, the embodiment of the present invention may make the second conductive portion 42 contact with the foaming layer 31, so as to increase the area of the second conductive portion 42 as much as possible and improve the conductivity of the second conductive portion 42. Alternatively, as shown in fig. 9, the second conductive portion 42 and the foaming layer 31 may have a distance therebetween, so as to fully consider the dimension of the second conductive portion 42 and the alignment process deviation when the second conductive portion 42 and the grounding portion 5 are aligned and bonded.

The grounding portion 5 is illustratively a copper foil. The copper foil has higher conductivity and good heat dissipation performance and extensibility, and the embodiment of the invention selects the copper foil to form the grounding part 5, so that the static electricity conducting capacity of the grounding part 5 can be improved, and static electricity can be rapidly dissipated. Moreover, when the display panel 1 is a flexible display panel, the copper foil can be well adapted to bending deformation of the display module 100 when the display module is bent.

Alternatively, in the case of providing the second conductive portion 42, if the display module 100 is configured to have the via hole 20 as shown in fig. 2, the materials of the third sub-conductive portion 421 and the fourth sub-conductive portion 422 included in the second conductive portion 42 may be set to be the same, so as to form the third sub-conductive portion 421 and the fourth sub-conductive portion 422 by using the same process.

Illustratively, the embodiment of the present invention may provide the materials of the third sub-conductive part 421 and the fourth sub-conductive part 422 described above to include copper foil. As shown in fig. 11, fig. 11 is a schematic cross-sectional view of a display module near a first edge according to another embodiment of the present invention, where the second conductive portion 42 and the grounding portion 5 are made of copper foil, the embodiment of the present invention may enable the second conductive portion 42 and the grounding portion 5 to be integrally formed, and no interface is included therebetween, so as to simplify the manufacturing process of the display module 100. Specifically, the third sub-conductive portion 421 and the fourth sub-conductive portion 422 included in the second conductive portion 42 may be integrally formed with the grounding portion 5, and fig. 5 only illustrates the third sub-conductive portion 421, and the fourth sub-conductive portion 422 is disposed in a similar manner to that described above, and is not further illustrated herein.

Alternatively, the embodiment of the present invention may also provide the material of the second conductive part 42 including the third sub-conductive part 421 and the fourth sub-conductive part 422 to include conductive paste.

For example, the embodiment of the present invention may also set the materials of the third sub-conductive part 421 and the fourth sub-conductive part 422 to be different. For example, one of them may be provided as copper foil and the other as conductive paste. The copper foil and the conductive paste are solid with a shape that is easier to control than the material of the second conductive part is a static liquid, and thus, difficulty in the manufacturing process of the second conductive part 42 can be reduced when the second conductive part 42 is provided along the first edge 101 and the second edge 102. In addition, compared with the static liquid, the resistivity of the copper foil and the conductive adhesive is smaller, so that the arrangement mode provided by the embodiment of the invention is more beneficial to timely conducting away static from the edge 10 of the display panel.

As shown in fig. 3, 4, 8, 9, 10 and 11, the display module 100 according to the embodiment of the present invention further includes a cover plate 6, where the cover plate 6 is located on the light emitting side of the display panel. The cover plate 6 covers the display panel 1. The cover plate 6 may protect the display panel 1.

For example, as shown in fig. 4, when the display panel 1 includes the through hole 20, the embodiment of the present invention may enable the cover plate 6 to cover the through hole 20, so as to protect the light sensor disposed in the subsequent corresponding through hole 20.

The embodiment of the invention also provides a display device, as shown in fig. 12, fig. 12 is a schematic diagram of the display device provided by the embodiment of the invention, and the display device includes the display module 100. The specific structure of the display module 100 is described in detail in the above embodiments, and will not be described herein. Of course, the display device shown in fig. 12 is only a schematic illustration, and the display device may be any electronic apparatus having a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.

As shown in fig. 12, the display device further includes a light sensor 200, and the light sensor 200 is disposed corresponding to the through hole 20 of the display panel.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A display module, comprising:

a display panel having an edge;

the first conductive part is positioned at one side of the display panel away from the light emitting side; the orthographic projection of the first conductive part on the plane of the display panel is at least partially positioned in the display area, and the orthographic projection of the first conductive part on the plane of the display panel is at least partially overlapped with the edge;

the grounding part is positioned at one side of the foam, which is far away from the supporting film; the grounding part is electrically connected with the first conductive part;

the display module further comprises a second conductive part, wherein the second conductive part is positioned between the first conductive part and the grounding part, and the first conductive part is electrically connected with the grounding part through the second conductive part;

the foam comprises a foaming layer; the foaming layer and the second conductive part are at least partially overlapped in the direction parallel to the plane of the display panel;

the foam comprises an opening, the shortest distance between the opening and the edge is greater than 0 along the direction parallel to the plane where the display panel is located, and the second conductive part is positioned in the opening;

the support film further comprises a first organic layer, a second organic layer and a support film adhesive layer, wherein the support film adhesive layer is positioned between the first organic layer and the second organic layer;

the support film adhesive layer comprises conductive adhesive, and the conductive adhesive is multiplexed into the first conductive part;

at least part of the support film adhesive layer is exposed on the surface of the support film, which is close to the edge, and at least part of the support film adhesive layer is exposed on the surface of the support film, which is close to the second conductive part.

2. The display module of claim 1, wherein the grounding portion is a copper foil.

3. The display module of claim 2, wherein the second conductive portion comprises a copper foil, and the second conductive portion is integrally formed with the grounding portion.

4. The display module assembly of claim 1, wherein the display module assembly comprises,

the foam also comprises a foam adhesive layer, wherein a part of the foam adhesive layer is positioned between the foaming layer and the support film; another portion of the foam layer is located between the first conductive portion and the support film.

5. The display module assembly of claim 4, wherein the display module assembly comprises,

the foam rubber layer comprises conductive rubber, and the conductive rubber is reused as the first conductive part.

6. The display module assembly of claim 5, wherein the display module assembly comprises,

the foam rubber layer is distributed in a grid shape in the plane where the foam is located.

7. The display module assembly of claim 1, wherein the display module assembly comprises,

the support film adhesive layers are distributed in a grid shape in the plane where the support film is located.

8. The display module assembly of claim 1, wherein the display module assembly comprises,

the second conductive part comprises conductive adhesive.

9. The display module assembly of claim 1, wherein the display module assembly comprises,

the shortest distance between the edge of the foaming layer and the edge of the grounding part is greater than 0.

10. A display device comprising the display panel of any one of claims 1-9.

11. The display device of claim 10, wherein the display device comprises a display device,

the display panel is provided with a through hole;

the display device further comprises a light sensor, and the orthographic projection of the light sensor on the plane where the display panel is located in the through hole.