Display device

Abstract

A display device comprises a conductive connection structure, the conductive connection structure comprises a conductive elastic piece and a flexible conductive part, the conductive elastic piece and the flexible conductive part are arranged between a middle frame assembly and a display panel, and the side, close to the display panel, of the conductive elastic piece is a plane, so that the problem that a die mark is formed on the display panel through point contact can be solved; in addition, the flexible conductive part is supported between the display panel and the conductive elastic piece and / or between the conductive elastic piece and the middle frame assembly, soft support can be formed on the display panel, pressure borne by the display panel is buffered, and the possibility that die marks are formed on the display panel is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and more specifically, to a display device. Background Technology

[0002] When the display panel is subjected to friction, static electricity can easily accumulate. Static discharge can cause the display panel to flicker, resulting in abnormal display images.

[0003] The display device uses conductive springs to contact the display panel and the mid-frame assembly to reduce the impact of electrostatic discharge on the display effect. However, the conductive springs make point contact with the display panel, which can easily form mold marks on the display panel and affect the display effect.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to overcome the problem that the conductive spring contact with the display panel is point contact, which easily forms a mold mark on the display panel, and to provide a display device.

[0006] According to one aspect of the present invention, a display device is provided, comprising a mid-frame assembly, a display panel, and a conductive connection structure, wherein the display panel is disposed opposite to the mid-frame assembly; the conductive connection structure comprises a conductive spring and a flexible conductive part, wherein the conductive spring and the flexible conductive part respectively contact the mid-frame assembly and the display panel, or the conductive spring is disposed between the mid-frame assembly and the display panel, and the flexible conductive part contacts the conductive spring, the display panel, and / or the mid-frame assembly, wherein the side of the conductive spring near the display panel is a plane.

[0007] In one embodiment of the present invention, a flexible conductive part is supported between the middle frame assembly and the display panel. The flexible conductive part has a receiving cavity that extends through both ends of the flexible conductive part. A conductive spring is disposed in the receiving cavity. The conductive spring contacts the middle frame assembly and the display panel respectively. The orthographic projection of the conductive spring on the display panel does not overlap with the orthographic projection of the flexible conductive part on the display panel.

[0008] In one embodiment of the present invention, the conductive spring includes a first support portion, a connecting portion, and a second support portion. The connecting portion is disposed between the middle frame assembly and the display panel. The first support portion is disposed at one end of the connecting portion near the display panel, and the second support portion is disposed at one end of the connecting portion near the middle frame assembly. The flexible conductive portion includes a first conductive buffer portion, which is supported between the first support portion and the display panel.

[0009] In one embodiment of the present invention, the flexible conductive part further includes a second conductive buffer part, which is disposed between the second support part and the middle frame assembly.

[0010] In one embodiment of the present invention, the connecting part has a straight structure, one end of the first support part and one end of the second support part are respectively connected to the two ends of the connecting part, the first support part and the second support part extend in opposite directions, and the included angle between the connecting part and the first support part and the second support part is less than 90 degrees.

[0011] In one embodiment of the present invention, the connecting part is an arc-shaped structure, and one end of the first support part and one end of the second support part are respectively connected to the two ends of the connecting part. The first support part and the second support part extend in the same direction.

[0012] In one embodiment of this utility model, the thickness of the connecting portion is less than the thickness of the first support portion and the thickness of the second support portion.

[0013] In one embodiment of the present invention, the flexible conductive part further includes a circumferential conductive buffer part, which is connected to the first conductive buffer part and the second conductive buffer part to form a closed cavity, and the conductive spring sheet is disposed in the cavity.

[0014] In one embodiment of this utility model, the flexible conductive part is provided with a plurality of vent holes, which are connected to the receiving cavity.

[0015] In one embodiment of this utility model, the middle frame assembly includes a middle frame and a shielding cover. The shielding cover is disposed on the side of the middle frame near the display panel. The side of the shielding cover near the motherboard and the battery is provided with a first groove and a second groove. A heating module is disposed in the first groove. The conductive connection structure includes a first conductive connection structure. The orthographic projection of the first conductive connection structure on the shielding cover is located outside the shielding cover. The orthographic projection of the first conductive connection structure on the shielding cover does not overlap with the first groove and the second groove.

[0016] In one embodiment of this utility model, the heating module includes a motherboard and a battery. The motherboard is disposed in a first groove, and the battery is disposed in a second groove. The conductive connection structure further includes a second conductive connection structure and a third conductive connection structure. The orthographic projection of the second conductive connection structure on the shielding cover overlaps with the first groove, and the orthographic projection of the third conductive connection structure on the shielding cover overlaps with the second groove. The orthographic projection of the third conductive connection structure on the shielding cover is larger than the orthographic projection of the second conductive connection structure on the shielding cover.

[0017] In one embodiment of the present invention, a third groove is provided on the side of the shielding cover near the display panel, and the second conductive buffer part and the second support part are both provided in the third groove.

[0018] In one embodiment of the present invention, the flexible conductive part includes at least two foam layers, and a conductive adhesive layer is provided between two adjacent foam layers.

[0019] In one embodiment of the present invention, the flexible conductive part includes a plurality of foam blocks, which are stacked into a grid structure. A filling grid is formed between two adjacent foam blocks along the row direction and along the column direction, and the filling grid is filled with conductive adhesive blocks.

[0020] In one embodiment of the present invention, the first conductive buffer portion and the second conductive buffer portion are provided with arc-shaped protrusions on the side near the display panel, and the adjacent arc-shaped protrusions form an arc-shaped depression.

[0021] In one embodiment of this utility model, a protective adhesive is provided at the connection between the connecting part and the first support part and at the connection between the second support part.

[0022] In one embodiment of this utility model, a protective adhesive covers the inner surface of the conductive spring, the side surface of the conductive spring, the side surface of the first conductive buffer portion, and the side surface of the second conductive buffer portion, and the protective adhesive is in contact with the display panel and the middle frame assembly.

[0023] In one embodiment of the present invention, the first support portion and the second support portion are provided with a plurality of recessed patterns, and the side of the first conductive buffer portion near the first support portion and the side of the second conductive buffer portion near the second support portion are provided with raised patterns, the raised patterns filling the recessed patterns.

[0024] In one embodiment of the present invention, the display device further includes an adhesive layer, which includes a first adhesive layer and a second adhesive layer. The first adhesive layer is disposed between the first support portion and the display panel, and between the second support portion and the middle frame assembly. The second adhesive layer is disposed between the first conductive buffer portion and the display panel, and between the second conductive buffer portion and the middle frame assembly. The roughness of the adhesive layer is 20%-30% of the thickness of the adhesive layer.

[0025] In one embodiment of this utility model, the width of the flexible conductive part is 2-5mm and the thickness of the flexible conductive part is 0.1-0.8mm.

[0026] In one embodiment of this invention, the contact area between the conductive spring and the display panel is 1 mm². 2 -9mm 2 The contact area between the flexible conductive part and the display panel is 4mm². 2 -25mm 2 .

[0027] The display device of this utility model includes a conductive connection structure, which includes a conductive spring and a flexible conductive part. The conductive spring and the flexible conductive part are disposed between the middle frame assembly and the display panel. The side of the conductive spring closest to the display panel is flat, which can improve the problem of point contact forming mold marks on the display panel. The flexible conductive part is supported between the display panel and the conductive spring and / or between the conductive spring and the middle frame assembly, which can provide soft support for the display panel, buffer the pressure on the display panel, and further reduce the possibility of forming mold marks on the display panel.

[0028] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. It is obvious that the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0030] Figure 1 This is a cross-sectional schematic diagram of a conductive spring sheet that is tilted between the display panel and the mid-frame assembly, as described in the related technology.

[0031] Figure 2 This is a planar schematic diagram of the process of forming a molded image on a display panel using tilted conductive springs, which is involved in related technologies.

[0032] Figure 3 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein a shielding cover is provided on the side of the motherboard and battery away from the middle frame.

[0033] Figure 4 This is a plan view of the display device according to an embodiment of the present invention, with the motherboard located in the first groove and the battery located in the second groove.

[0034] Figure 5 A cross-sectional schematic diagram of the display device according to the present invention, wherein the first support part contacts the display panel, the end of the connecting part away from the display panel contacts the middle frame assembly, and the connecting part has a straight structure.

[0035] Figure 6 A cross-sectional schematic diagram of the display device involved in this utility model embodiment is shown when the connecting part has a straight structure, a first support part is provided at the end of the connecting part near the display panel, and a second support part is provided at the end of the connecting part near the middle frame assembly.

[0036] Figure 7A three-dimensional structural diagram showing the distribution of multiple conductive connection structures on the display panel when the connecting part is a straight structure, a first support part is provided at the end of the connecting part near the display panel, and a second support part is provided at the end of the connecting part near the middle frame assembly.

[0037] Figure 8 A three-dimensional structural diagram of a single conductive connection structure in this embodiment of the present invention is shown, wherein the connection part is a straight structure, a first support part is provided at the end of the connection part near the display panel, and a second support part is provided at the end of the connection part near the middle frame assembly.

[0038] Figure 9 A cross-sectional schematic diagram of the display device involved in this utility model embodiment is shown when the connecting part has a straight structure, a first conductive buffer part is provided between the first support part and the display panel, and a second conductive buffer part is provided between the second support part and the shielding cover.

[0039] Figure 10 A three-dimensional structural diagram showing the distribution of multiple conductive connection structures on the display panel when the connecting part is an arc-shaped structure, a first support part is provided at the end of the connecting part near the display panel, and a second support part is provided at the end of the connecting part near the middle frame assembly.

[0040] Figure 11 A cross-sectional schematic diagram of the display device involved in this utility model embodiment, wherein the connecting part is an arc-shaped structure and a first conductive buffer part is provided between the first support part and the display panel.

[0041] Figure 12 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein the connecting part is an arc-shaped structure, a first conductive buffer part is provided between the first support part and the display panel, and a second conductive buffer part is provided between the second support part and the middle frame assembly.

[0042] Figure 13 A cross-sectional schematic diagram of the display device involved in this utility model embodiment, wherein the connecting part is an arc-shaped structure and the thickness of the connecting part is less than the thickness of the first support part and the thickness of the second support part.

[0043] Figure 14 A schematic diagram showing the distribution of the first conductive buffer portion on the display panel in an embodiment of this utility model, where a first conductive buffer portion is provided between the first support portion and the display panel.

[0044] Figure 15 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention is shown, in which a conductive spring is disposed in the receiving cavity, one end of the conductive spring protruding from the receiving cavity contacts the middle frame assembly, and the other end of the conductive spring protruding from the receiving cavity contacts the display panel.

[0045] Figure 16A cross-sectional schematic diagram of the display device according to an embodiment of the present invention is shown, in which the circumferential conductive buffer part is connected to the edge of the first conductive buffer part and the edge of the second conductive buffer part to form a receiving cavity, and the conductive spring is disposed in the receiving cavity.

[0046] Figure 17 The diagram shows a cross-sectional view of the display device in this embodiment of the present invention, where the cavity is a through hole with both ends connected, and the vent hole is connected to the cavity.

[0047] Figure 18 A cross-sectional schematic diagram of the display device involved in this embodiment of the present invention, wherein the cavity is a closed space on all sides and the exhaust port is connected to the cavity.

[0048] Figure 19 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein the first conductive buffer portion and the second conductive buffer portion are provided with arc-shaped protrusions on the side near the display panel.

[0049] Figure 20 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein both the second conductive buffer and the second support are disposed in the third groove.

[0050] Figure 21 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein a first adhesive layer is provided between the first support part and the display panel, and between the second support part and the shielding cover, and a second adhesive layer is provided between the first conductive buffer part and the display panel, and between the second conductive buffer part and the shielding cover.

[0051] Figure 22 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein the adhesive layer is disposed between the first conductive buffer portion and the first support portion, and between the second conductive buffer portion and the second support portion.

[0052] Figure 23 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein protective adhesive is provided at the connection between the connecting part and the first support part and the connection between the second support part.

[0053] Figure 24 A cross-sectional schematic diagram of the display device according to an embodiment of the present invention, wherein the protective adhesive can cover the inner surface of the conductive spring, the side surface of the conductive spring, the side surface of the first conductive buffer portion, and the side surface of the second conductive buffer portion.

[0054] Figure 25 A cross-sectional schematic diagram of the display device involved in this utility model embodiment is shown when the flexible conductive part includes at least two foam layers and a conductive adhesive layer is provided between two adjacent foam layers.

[0055] Figure 26A cross-sectional schematic diagram of the display device involved in this utility model embodiment is shown, in which a filling mesh is formed between two adjacent foam blocks along the row direction and the column direction, and the filling mesh is filled with conductive adhesive blocks.

[0056] In the diagram: 1-Middle frame assembly, 11-Middle frame, 12-Shielding cover, 121-First groove, 122-Second groove, 123-Third groove, 13-Main board, 14-Battery, 2-Display panel, 3-Conductive connection structure, 31-Conductive spring, 311-First support part, 312-Connecting part, 313-Second support part, 32-Flexible conductive part, 321-First conductive buffer part, 322-Second conductive buffer part, 323-Circumferential guide Electrical buffer section, 3201-accommodating cavity, 3202-vent hole, 3203-foam layer, 3204-conductive adhesive layer, 3205-foam block, 3206-conductive adhesive block, 3207-arc-shaped protrusion, 3208-arc-shaped depression, 33-protective adhesive, 301-first conductive connection structure, 302-second conductive connection structure, 303-third conductive connection structure, 4-adhesive layer, 41-first adhesive layer, 42-second adhesive layer, 5-molding. Detailed Implementation

[0057] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted. Furthermore, the drawings are merely illustrative of the present invention and are not necessarily drawn to scale.

[0058] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0059] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0060] Display devices are prone to static electricity buildup when subjected to friction. When this static electricity accumulates to a certain level, it will discharge, which can cause screen flickering on the display panel 2, resulting in abnormal display images. For example... Figure 1 and Figure 2 As shown, a conductive spring 31 is provided to absorb electrostatic discharge. The conductive spring 31 is inclinedly positioned between the display panel 2 and the middle frame assembly 1. Since the conductive spring 31 and the display panel 2 are in point contact, the display panel 2 is easily subjected to greater pressure, forming a mold mark 5 on the display panel 2, which affects the display effect. According to P=F / S1, it can be seen that when the pressure F remains constant, the smaller the contact area S1, the greater the pressure P, and the more severe the mold mark 5.

[0061] Based on this, the present invention provides a display device. For example... Figures 3 to 26 As shown, the display device includes a mid-frame assembly 1, a display panel 2, and a conductive connection structure 3. The display panel 2 is disposed opposite to the mid-frame assembly 1. The conductive connection structure 3 includes a conductive spring 31 and a flexible conductive part 32. The conductive spring 31 and the flexible conductive part 32 are in contact with the mid-frame assembly 1 and the display panel 2, respectively. Alternatively, the conductive spring 31 is disposed between the mid-frame assembly 1 and the display panel 2, and the flexible conductive part 32 is in contact with the conductive spring 31, the display panel 2, and / or the mid-frame assembly 1. The side of the conductive spring 31 closest to the display panel 2 is flat.

[0062] The display device includes a conductive connection structure 3, which includes a conductive spring 31 and a flexible conductive part 32. The conductive spring 31 and the flexible conductive part 32 are disposed in the middle frame assembly 1 and in contact with the display panel 2. The side of the conductive spring 31 closest to the display panel 2 is flat, which can improve the problem of point contact forming a mold mark 5 on the display panel 2. The flexible conductive part 32 is supported between the display panel 2 and the conductive spring 31 and / or between the conductive spring 31 and the middle frame assembly 1. The flexible conductive part 32 can provide soft support for the display panel 2, buffer the pressure on the display panel 2, and further reduce the possibility of forming a mold mark 5 on the display panel 2.

[0063] The display panel 2 involved in the embodiments of this utility model will be described in detail below with reference to specific examples.

[0064] like Figure 3 and Figure 4As shown, the display device may include a mid-frame assembly 1, which may include a mid-frame 11 and a shielding cover 12. A motherboard 13 and a battery 14 are housed within the mid-frame 11. The shielding cover 12 is located on the side of the motherboard 13 and battery 14 away from the mid-frame 11. The shielding cover 12 has a first groove 121 and a second groove 122 on the side closest to the motherboard 13 and battery 14. The motherboard 13 is located within the first groove 121, and the battery 14 is located within the second groove 122. To facilitate the shaping of the shielding cover 12 to form the first groove 121 and the second groove 122, the shielding cover 12 may be made of metal.

[0065] Other terminal components, such as RF baseband, NFC wireless charging module, and antenna components, are typically housed under the shielding cover 12. Since external signals of different frequencies can interfere with the display panel 2 and cause abnormal display, the shielding cover 12 serves to prevent interference to the display panel 2. To ensure a relatively thin overall display device, clearance slots can be provided on the side of the shielding cover 12 near the mid-frame 11 to house the other terminal components.

[0066] The display device also includes a display panel 2 and a conductive connection structure 3. The display panel 2 is located on the side of the shielding cover 12 away from the middle frame 11, and the display panel 2 and the shielding cover 12 are spaced apart. The conductive connection structure 3 is located between the display panel 2 and the shielding cover 12. The electrostatic discharge path is as follows: from the display panel 2 to the conductive connection structure 3, from the conductive connection structure 3 to the shielding cover 12, and from the shielding cover 12 to the ground terminal of the main board 13.

[0067] According to the formula R = ρL / S², the lower the resistance, the better the conductivity and the faster the electrostatic discharge. Taking the resistivity of conductive connection structure 3 as 10... 5 For example, the smaller L is, the better; that is, the closer the conductive connection structure 3 is to the motherboard 13, the better; and the larger the cross-sectional area S2 of the conductive connection structure 3 is, the better. To ensure the electrostatic discharge effect, the cross-sectional area of ​​the conductive connection structure 3 can be increased as much as possible. With the dimension of the conductive connection structure 3 in the thickness direction of the display device remaining unchanged, the cross-sectional area of ​​the conductive connection structure 3 is equal to the contact area between the conductive connection structure 3 and the display panel 2 and the shielding cover 12.

[0068] The conductive connection structure 3 may include a first conductive connection structure 301. The orthographic projection of the first conductive connection structure 301 on the shielding cover 12 is located on the periphery of the shielding cover 12. When the display panel 2 is touched, the pressure on the periphery of the display panel 2 is usually small, thus further reducing the risk of molded marks 5 forming on the display panel 2. The orthographic projection of the first conductive connection structure 301 on the shielding cover 12 does not overlap with the first groove 121 and the second groove 122.

[0069] In addition to releasing electrostatic discharge, the conductive connection structure 3 also has a certain heat dissipation function. Therefore, the conductive connection structure 3 may also include a second conductive connection structure 302 and a third conductive connection structure 303. The orthographic projection of the second conductive connection structure 302 on the shielding cover 12 overlaps with the first groove 121, and the orthographic projection of the third conductive connection structure 303 on the shielding cover 12 overlaps with the second groove 122. The heat generated by the motherboard 13 can be conducted to the display panel 2 for dissipation through the second conductive connection structure 302, and the heat generated by the battery 14 can be conducted to the display panel 2 for dissipation through the third conductive connection structure 303.

[0070] To ensure effective heat dissipation, the contact areas between the second conductive connection structure 302 and the third conductive connection structure 303 and the shielding cover 12 can be set to be larger than the contact area between the first conductive connection structure 301 and the shielding cover 12. Specifically, the orthographic projections of the second conductive connection structure 302 and the third conductive connection structure 303 on the shielding cover 12 are larger than the orthographic projections of the first conductive connection structure 301 on the shielding cover 12. Since the heat dissipation of the battery 14 is typically greater than that of the motherboard 13, the contact area between the third conductive connection structure 303 and the shielding cover 12 can be set to be larger than the contact area between the second conductive connection structure 302 and the shielding cover 12. In other words, the orthographic projection of the third conductive connection structure 303 on the shielding cover 12 is larger than the orthographic projection of the second conductive connection structure 302 on the shielding cover 12.

[0071] like Figure 5 As shown, the conductive connection structure 3 may include a conductive spring 31. The conductive spring 31 includes a first support portion 311 and a connecting portion 312. The connecting portion 312 is disposed between the shielding cover 12 and the display panel 2. The first support portion 311 is disposed at the end of the connecting portion 312 near the display panel 2 and is in contact with the display panel 2. The end of the connecting portion 312 away from the display panel 2 is in contact with the middle frame assembly 1. It can be understood that the side of the conductive spring 31 that contacts the display panel 2 is a plane, and the conductive spring 31 and the display panel 2 are in surface contact. Therefore, the problem of point contact forming a molded mark 5 on the display panel 2 can be improved.

[0072] like Figures 6 to 23As shown, to facilitate contact between the metal spring and the shielding cover 12 or the flexible conductive part 32, the side of the conductive spring 31 that contacts the shielding cover 12 can also be made flat. That is, the conductive spring 31 includes a first support part 311, a connecting part 312, and a second support part 313. The connecting part 312 is located between the shielding cover 12 and the display panel 2. The first support part 311 is located at the end of the connecting part 312 near the display panel 2, and the second support part 313 is located at the end of the connecting part 312 near the shielding cover 12. When the display panel 2 is subjected to pressure, the connecting part 312 deforms or the angle between the connecting part 312 and the first and second support parts 311 changes, compressing the distance between the first and second support parts 311, thus buffering the pressure on the conductive connection structure 3.

[0073] like Figures 6 to 9 As shown, the connecting part 312 can be configured as a straight structure. One end of the first support part 311 and one end of the second support part 313 are respectively connected to the two ends of the connecting part 312. The first support part 311 and the second support part 313 extend in a direction parallel to the display panel 2 and the shielding cover 12. The extension directions of the first support part 311 and the second support part 313 are opposite. The angle between the connecting part 312 and the first support part 311 and the second support part 313 is less than 90 degrees.

[0074] like Figures 10 to 12 As shown, the connecting portion 312 has an arc-shaped structure. One end of the first support portion 311 and one end of the second support portion 313 are respectively connected to the two ends of the connecting portion 312. The first support portion 311 and the second support portion 313 extend in a direction parallel to the display panel 2 and the shielding cover 12, and the extending directions of the first support portion 311 and the second support portion 313 are the same. To avoid a large rebound force in the connecting portion 312, increasing the supporting force of the first support portion 311 on the display panel 2, and increasing the risk of molded marks 5 forming on the display panel 2. Figure 13 As shown, the thickness of the connecting part 312 is set to be less than the thickness of the first support part 311 and the thickness of the second support part 313, so that the conductive spring sheet 31 can easily deform and buffer the pressure when it is compressed.

[0075] like Figures 5 to 13 As shown, the flexible conductive part 32 can be supported between the display panel 2 and the conductive spring piece 31. Specifically, the flexible conductive part 32 includes a first conductive buffer part 321, which is located between the first support part 311 and the display panel 2. When the display panel 2 is subjected to pressure, the deformation of the first conductive buffer part 321 can buffer the pressure between the conductive spring piece 31 and the display panel 2. Figure 14 As shown, the first conductive buffer portion 321 is disposed on the outer periphery of the display panel 2, which can greatly reduce the risk of the edge of the first support portion 311 forming a mold mark 5 on the display panel 2. Figure 9 and Figure 12 As shown, in order to avoid the conductive spring 31 from exerting too much pressure on the shielding cover 12, causing the shielding cover 12 to deform and squeeze the motherboard 13 and the battery 14, the flexible conductive part 32 also includes a second conductive buffer part 322, which is disposed between the second support part 313 and the shielding cover 12.

[0076] like Figure 15 As shown, the conductive connection structure 3 may further include a flexible conductive part 32, which is supported between the mid-frame assembly 1 and the display panel 2. The flexible conductive part 32 has a receiving cavity 3201 extending through both ends of the flexible conductive part 32. A conductive spring piece 31 is disposed in the receiving cavity 3201. One end of the conductive spring piece 31 extending out of the receiving cavity 3201 contacts the mid-frame assembly 1, and the other end of the conductive spring piece 31 extending out of the receiving cavity 3201 contacts the display panel 2. The flexible conductive part 32 provides soft support for the display panel 2 and can also buffer the pressure on the display panel 2, further reducing the possibility of molded imprints 5 forming on the display panel 2.

[0077] like Figure 16 As shown, combined with Figure 10 and Figure 15 The flexible conductive part 32 also includes a circumferential conductive buffer part 323. The circumferential conductive buffer part 323 is connected to the edge of the first conductive buffer part 321 and the edge of the second conductive buffer part 322 to form a receiving cavity 3201. The conductive spring piece 31 is disposed in the receiving cavity 3201. That is, the circumferential conductive buffer part 323 of the flexible conductive part 32 is in direct contact with the display panel 2 and the shielding cover 12. The first conductive buffer part 321 is supported between the first support part 311 and the display panel 2, and the second conductive buffer part 322 is supported between the second support part 313 and the shielding cover 12. Figure 17 and Figure 18 As shown, in order to prevent the flexible conductive part 32 from repeatedly expanding under pressure and being damaged over a long period of time, the flexible conductive part 32 is provided with multiple vent holes 3202. The vent holes 3202 are connected to the receiving cavity 3201, which can release the gas in the receiving cavity 3201 under pressure.

[0078] like Figure 19 As shown, the first conductive buffer portion 321 and the second conductive buffer portion 322 have arc-shaped protrusions 3207 on the side near the display panel 2, and multiple adjacent arc-shaped protrusions 3207 form arc-shaped recesses 3208. When the first buffer portion and the second buffer portion are compressed, the arc-shaped protrusions 3207 and the arc-shaped recesses 3208 can be flattened. During the deformation process of the arc-shaped protrusions 3207 and the arc-shaped recesses 3208, the pressure on the display panel 2 can be further buffered, and the possibility of forming a molded mark 5 on the display panel 2 can be better reduced.

[0079] When the display panel 2 is subjected to oblique pressure, relative sliding can easily occur between the first conductive buffer part 321 and the first support part 311, and between the second conductive buffer part 322 and the second support part 313, affecting the pressure buffering effect of the first conductive buffer part 321 and the second conductive part. As shown in the figure, the support part has multiple recessed patterns, and the conductive buffer part has multiple raised patterns on the side near the support part. The raised patterns fill the recessed patterns, which can increase the friction between the first conductive buffer part 321 and the first support part 311, and between the second conductive buffer part 322 and the second support part 313, thereby alleviating or preventing relative sliding between the first conductive buffer part 321 and the first support part 311, and between the second conductive buffer part 322 and the second support part 313.

[0080] like Figure 20 As shown, a third groove 123 can also be provided on the side of the shielding cover 12 near the display panel 2, and the second conductive buffer part 322 and the second support part 313 can both be disposed in the third groove 123. The third groove 123 can limit the second conductive buffer part 322 and the second support part 313, and can prevent the second conductive buffer part 322 and the second support part 313 from sliding relative to each other.

[0081] like Figure 21 As shown, the display device further includes an adhesive layer 4, which comprises a first adhesive layer 41 and a second adhesive layer 42. The first adhesive layer 41 is disposed between the first support portion 311 and the display panel 2, and between the second support portion 313 and the shielding cover 12, to prevent relative sliding between the first support portion 311 and the display panel 2, and to prevent relative sliding between the second support portion 313 and the shielding cover 12. The second adhesive layer 42 is disposed between the first conductive buffer portion 321 and the display panel 2, and between the second conductive buffer portion 322 and the shielding cover 12, to prevent relative sliding between the first conductive buffer portion 321 and the display panel 2, and to prevent relative sliding between the second conductive buffer portion 322 and the shielding cover 12.

[0082] like Figure 22 As shown, the display device also includes an adhesive layer 4, which is disposed between the first conductive buffer portion 321 and the first support portion 311 to prevent relative sliding between the first conductive buffer portion 321 and the first support portion 311. The adhesive layer 4 is also disposed between the second conductive buffer portion 322 and the second support portion 313 to prevent relative sliding between the second conductive buffer portion 322 and the second support portion 313.

[0083] exist Figure 21 and Figure 22In this process, the roughness Ra value of adhesive layer 4 is 20%-30% of its thickness. For example, when the thickness of adhesive layer 4 is 0.1 mm, the roughness Ra value of adhesive layer 4 is 20-30 μm. When the roughness Ra value of adhesive layer 4 is within the above range, in... Figure 21 In this way, relative sliding between the circumferential conductive buffer part 323 and the display panel 2 and the middle frame assembly 1 can be avoided, as can relative sliding between the first support part 311 and the display panel 2, and relative sliding between the second support part 313 and the middle frame assembly 1 can also be avoided. Figure 22 In this way, relative sliding between the first conductive buffer part 321 and the display panel 2, and between the second conductive buffer part 322 and the middle frame assembly 1 can be avoided.

[0084] like Figure 23 As shown, a protective adhesive 33 is provided at the connection between the connecting part 312 and the first support part 311, which can alleviate the stress concentration at the connection between the connecting part 312 and the first support part 311. A protective adhesive 33 is also provided at the connection between the connecting part 312 and the second support part 313, which can alleviate the stress concentration at the connection between the connecting part 312 and the second support part 313.

[0085] like Figure 24 As shown, the protective adhesive 33 can cover the inner surface of the conductive spring 31, the side surface of the conductive spring 31, the side surface of the first conductive buffer 321, and the side surface of the second conductive buffer 322. The protective adhesive 33 contacts the display panel 2 and the middle frame assembly 1, which can prevent the separation between the first support 311 and the first conductive buffer 321, and also prevent the separation between the second support 313 and the second conductive buffer 322, thereby achieving the effect of preventing relative sliding between the first support 311 and the first conductive buffer 321, and preventing relative sliding between the second support 313 and the second conductive buffer 322.

[0086] like Figure 25 As shown, the flexible conductive part 32 includes at least two foam layers 3203, with a conductive adhesive layer 3204 between adjacent foam layers 3203. This can disperse pressure, increase cushioning, reduce the risk of mold marks 5 forming on the display panel 2, and also improve the conductivity of the conductive connection structure 3. Figure 26 As shown, the flexible conductive part 32 includes multiple foam blocks 3205, which are stacked into a grid structure. Adhesive-filled grids are formed between adjacent foam blocks 3205 along the row and column directions, and conductive adhesive blocks 3206 are filled within the adhesive-filled grids. This reduces stress concentration, lowers the risk of mold marks 5 forming on the display panel 2, and disperses electrostatic current, preventing screen flickering caused by electrostatic discharge.

[0087] It should be noted that both the conductive adhesive layer 3204 and the conductive adhesive block 3206 are made of conductive adhesive, which includes an adhesive and conductive particles encapsulated within the adhesive.

[0088] exist Figures 5 to 16 In the flexible conductive part 32, the width d is 2-5mm, and the thickness t is 0.1-0.8mm. The contact area between the conductive spring 31 and the display panel 2 is 1mm². 2 -9mm 2 The contact area between the flexible conductive part 32 and the display panel 2 is 4 mm². 2 -25mm 2 This ensures that the conductive connection structure 3 can effectively reduce the possibility of molding 5 forming on the display panel 2. For example: in Figures 5-16 In the middle, the conductive spring 31 and the display panel 2 have a side length × side length of 1mm × 1mm to 3mm × 3mm. Figures 5-13 as well as Figure 16 In this context, the side length × side length of the contact area between the flexible conductive part 32 and the display panel 2 can be from 2mm × 2mm to 5mm × 5mm. Figure 15 In this case, the contact length × side length between the flexible conductive part 32 and the display panel 2 can be 1mm × 3mm.

[0089] Display devices can be traditional electronic devices, such as mobile phones, computers, televisions, and video recorders, or emerging wearable devices, such as virtual reality devices and augmented reality devices, which will not be listed here.

[0090] It should be noted that the above embodiments are interconnected and can be combined to form other solutions. The solution of this utility model is not limited to the solutions described in the above embodiments. Those skilled in the art will readily conceive of other embodiments of this utility model upon considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary technical means in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this utility model are indicated by the appended claims.

Claims

1. A display device, characterized by comprising: The application relates to a display device, which comprises a middle frame assembly, a display panel, and a conductive connection structure. The conductive connection structure comprises a conductive elastic sheet and a flexible conductive part, and the conductive elastic sheet and the flexible conductive part are respectively in contact with the middle frame assembly and the display panel, or the conductive elastic sheet is arranged between the middle frame assembly and the display panel, the flexible conductive part is in contact with the conductive elastic sheet, the display panel and / or the middle frame assembly, and the side of the conductive elastic sheet close to the display panel is a plane. The flexible conductive part is supported between the middle frame assembly and the display panel, has a containing cavity penetrating through two ends of the flexible conductive part, the conductive elastic sheet is arranged in the containing cavity, the conductive elastic sheet is respectively in contact with the middle frame assembly and the display panel, and the orthogonal projection of the conductive elastic sheet on the display panel does not overlap with the orthogonal projection of the flexible conductive part on the display panel. The conductive elastic sheet comprises a first supporting part, a connecting part and a second supporting part, the connecting part is arranged between the middle frame assembly and the display panel, the first supporting part is arranged at one end of the connecting part close to the display panel, the second supporting part is arranged at one end of the connecting part close to the middle frame assembly, and the flexible conductive part comprises a first conductive buffer part which is supported between the first supporting part and the display panel.

2. The display device according to claim 1, wherein The flexible conductive part further comprises a second conductive buffer part which is arranged between the second supporting part and the middle frame assembly.

3. The display device according to claim 1, wherein The connecting part is a straight structure, one end of the first supporting part and one end of the second supporting part are respectively connected to two ends of the connecting part, the extending directions of the first supporting part and the second supporting part are opposite, and the included angle between the connecting part and the first supporting part and the second supporting part is less than 90 degrees.

4. The display device according to claim 3, wherein The connecting part is an arc structure, one end of the first supporting part and one end of the second supporting part are respectively connected to two ends of the connecting part, and the extending directions of the first supporting part and the second supporting part are the same.

5. The display device according to claim 3, wherein The thickness of the connecting part is less than the thickness of the first supporting part and the thickness of the second supporting part.

6. The display device according to claim 3, wherein The flexible conductive part further comprises a circumferential conductive buffer part which is connected with the first conductive buffer part and the second conductive buffer part to form a containing cavity which is enclosed on four sides, and the conductive elastic sheet is arranged in the containing cavity.

7. The display device according to claim 6, wherein A plurality of exhaust holes are arranged on the flexible conductive part and are in communication with the containing cavity.

8. The display device according to claim 4, wherein The middle frame assembly comprises a middle frame and a shielding cover, the shielding cover is arranged on the side of the middle frame close to the display panel, the shielding cover is provided with a first groove and a second groove on the side close to the middle frame, a heating module is arranged in the first groove, the conductive connection structure comprises a first conductive connection structure, the orthogonal projection of the first conductive connection structure on the shielding cover is located on the periphery of the shielding cover, and the orthogonal projection of the first conductive connection structure on the shielding cover does not overlap with the first groove and the second groove.

9. The display device according to claim 2 or 8, wherein ​ 10. The display device according to claim 4, wherein ​ 11. The display device according to claim 10, wherein The heating module comprises a main plate and a battery, the main plate is arranged in the first recess, the battery is arranged in the second recess, the conductive connection structure further comprises a second conductive connection structure and a third conductive connection structure, the second conductive connection structure is overlapped with the first recess in the orthographic projection on the shielding cover, the third conductive connection structure is overlapped with the second recess in the orthographic projection on the shielding cover, and the orthographic projection of the third conductive connection structure on the shielding cover is larger than the orthographic projection of the second conductive connection structure on the shielding cover.

12. The display device of claim 11, wherein, The shielding cover is provided with a third recess on the side close to the display panel, and the second conductive buffer part and the second support part are arranged in the third recess.

13. The display device of claim 1, wherein, The flexible conductive part comprises at least two layers of foam layers, and a conductive adhesive layer is arranged between adjacent two layers of foam layers.

14. The display device of claim 1, wherein The flexible conductive part comprises a plurality of foam blocks, the plurality of foam blocks are stacked into a grid structure, a glue filling grid is formed between two foam blocks adjacent in a row direction and in a column direction, and the glue filling grid is filled with a conductive glue block.

15. The display device according to claim 4, wherein The first conductive buffer part and the second conductive buffer part are provided with arc-shaped protrusions on the side close to the display panel, and arc-shaped recesses are surrounded between adjacent arc-shaped protrusions.

16. The display device according to claim 4, wherein The connection part is provided with protective glue at the connection with the first support part and the second support part.

17. The display device of claim 16, wherein, The protective glue covers the inner surface of the conductive elastic sheet, the side surface of the conductive elastic sheet, the side surface of the first conductive buffer part and the side surface of the second conductive buffer part, and the protective glue is in contact with the display panel and the middle frame assembly.

18. The display device according to claim 4, wherein The first support part and the second support part are provided with a plurality of recess patterns, and the first conductive buffer part is provided with a protrusion pattern on the side close to the first support part, and the second conductive buffer part is provided with a protrusion pattern on the side close to the second support part, and the protrusion pattern is filled in the recess pattern.

19. The display device according to claim 4, wherein The display device further comprises an adhesive layer, the adhesive layer comprises a first adhesive layer and a second adhesive layer, the first adhesive layer is arranged between the first support part and the display panel and between the second support part and the middle frame assembly, the second adhesive layer is arranged between the first conductive buffer part and the display panel and between the second conductive buffer part and the middle frame assembly, and the roughness of the adhesive layer is 20%-30% of the thickness of the adhesive layer.

20. The display device of claim 1, wherein The width of the flexible conductive part is 2-5mm, and the thickness of the flexible conductive part is 0.1-0.8mm.

21. The display device of claim 1, wherein An area of a contact region of the conductive spring plate with the display panel is 1mm 2 -9mm 2 An area of a contact region of the flexible conductive portion with the display panel is 4mm 2 -25mm 2 .

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