Display panel, display screen and electronic equipment

Abstract

The invention relates to a display panel, a display screen and electronic equipment, the display panel comprises a display area, a wiring area and a bending area connecting the display area and the wiring area, the wiring area comprises multiple organic film layers, first metal wires and second metal wires, at least one organic film layer is located between the first metal wires and the second metal wires, and the first metal wires are located between the first metal wires and the second metal wires. A wire changing part is formed at the electric contact position of the first metal wire and the second metal wire, a groove is formed in at least one of the multiple organic film layers in a penetrating mode in the thickness direction of the organic film layers, and the position, on the organic film layers, of the groove is located between the concave part and the wire changing part. According to the display panel, the display screen and the electronic equipment, the groove is used for cutting off the invasion path of water vapor flowing from the concave part to the wire changing part, so that the effect of preventing the water vapor from entering the wire changing part and corroding the first metal wire and the second metal wire is achieved; therefore, the problem of poor display caused by corrosion of the first metal wire and the second metal wire is solved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a display panel, a display screen and electronic equipment. Background Art

[0002] The display panel mainly includes the display area, the routing area (i.e. the fan-out line area), the bending area, etc. The bending area is mainly used to lead the signal lines in the display area to the routing area. The bending area is distributed with metal routing lines for transmitting signals. In order to adapt to the good bending performance of the bending area, the bending area is usually designed to be thinner than other areas.

[0003] However, water vapor easily enters the wiring area, causing corrosion of the metal wiring, thereby causing poor display of the display panel. Summary of the invention

[0004] The present application provides a display panel, a display screen and an electronic device to solve the technical problem of how to improve the poor display caused by corrosion of metal wiring.

[0005] On the one hand, the present application provides a display panel, comprising a display area, a wiring area, and a bending area connecting the display area and the wiring area; the film layer stacking thickness of the display panel at a position corresponding to the bending area is less than the film layer stacking thickness of the display panel at a position corresponding to the wiring area, so that a recessed portion is formed at the position of the display panel corresponding to the bending area; the wiring area comprises a plurality of organic film layers, a first metal wiring and a second metal wiring, at least one layer of the organic film layer is located between the first metal wiring and the second metal wiring, and a wiring change portion is formed at the electrical contact position between the first metal wiring and the second metal wiring, at least one layer of the plurality of organic film layers is formed with a groove along its own thickness direction, and the position of the groove on the organic film layer is between the recessed portion and the wiring change portion.

[0006] In one of the embodiments, a plurality of the grooves are formed on at least one layer of the organic film, and the plurality of the grooves are arranged along the length direction of the first metal wiring; and / or the groove width of the grooves along the length direction of the first metal wiring is 5 μm~20 μm.

[0007] In one embodiment, the routing area includes a base layer, multiple layers of the organic film layers are stacked on the base layer, at least two adjacent organic film layers are provided with the grooves, and the organic film layers point in the direction of the base layer, and the groove widths of the grooves on different organic film layers gradually decrease.

[0008] In one embodiment, the routing area includes a base layer, multiple organic film layers are stacked on the base layer, at least two adjacent organic film layers are provided with the grooves, and the grooves on different organic film layers are staggered along the length direction of the first metal routing.

[0009] In one embodiment, the routing area includes a base layer, multiple organic film layers are stacked on the base layer, at least two adjacent organic film layers are provided with the grooves, and the grooves located on different organic film layers are centered along the length direction of the first metal routing.

[0010] In one of the embodiments, in the direction from the organic film layer to the base layer, the width of the grooves on different organic film layers gradually decreases.

[0011] In one embodiment, the routing area includes a base layer, and the multiple organic film layers include a first organic film layer and a second organic film layer, the first organic film layer is arranged on the base layer, and the second organic film layer is arranged on the side of the first organic film layer facing away from the base layer, the first organic film layer is provided with a routing hole, the first metal routing is arranged between the first organic film layer and the base layer, the second metal routing is arranged between the first organic film layer and the second organic film layer, and a partial structure of the second metal routing is accommodated in the routing hole and is in electrical contact with the first metal routing.

[0012] In one of the embodiments, a first groove is provided on the first organic film layer corresponding to the recessed portion and the line-changing portion, and the first groove penetrates the first organic film layer along a thickness direction of the first organic film layer.

[0013] In one of the embodiments, the width of the first groove along the length direction of the first metal wiring is 5 μm-20 μm.

[0014] In one of the embodiments, a second groove is provided on the second organic film layer corresponding to the recessed portion and the line-changing portion, and the second groove penetrates the second organic film layer along the thickness direction of the second organic film layer.

[0015] In one embodiment, the first groove and the second groove are staggered along the length direction of the first metal routing; and / or, the first groove and the second groove are centered along the length direction of the first metal routing, and the groove width of the first groove is smaller than the groove width of the second groove.

[0016] In one embodiment, the routing area includes a third organic film layer, and the third organic film layer is disposed on a side of the second organic film layer facing away from the first organic film layer.

[0017] In one embodiment, the third organic film layer covers the second groove; and / or, a third groove is arranged on the third organic film layer corresponding to the recessed portion and the line-changing portion, the third groove penetrates the third organic film layer along the thickness direction of the third organic film layer, and the orthographic projection area of ​​the groove wall of the second groove on the third organic film layer is located in the area of ​​the third organic film layer where the third groove is arranged and do not overlap with each other.

[0018] In one of the embodiments, a third groove is provided on the third organic film layer corresponding to the recessed portion and the line-changing portion, and the third groove is connected to the second groove.

[0019] In one embodiment, the groove wall of the second groove close to the line change portion is the first groove wall, and the groove wall of the third groove close to the line change portion is the second groove wall. The first groove wall and the second groove wall are staggered along the length direction of the first metal routing, and the staggered distance between them is 2μm~5μm.

[0020] In one embodiment, the routing area includes a third organic film layer and a fourth organic film layer, and the third organic film layer and the fourth organic film layer are sequentially arranged on a side of the second organic film layer facing away from the first organic film layer.

[0021] In one embodiment, at least one of the third organic film layer and the fourth organic film layer is provided with the groove penetrating along the thickness direction thereof.

[0022] In one embodiment, the third organic film layer and the fourth organic film layer are respectively provided with a third groove and a fourth groove. In the length direction of the first metal wiring, the third groove and the fourth groove are arranged in the center and have the same groove width.

[0023] On the other hand, the present application provides a display screen, comprising the above-mentioned display panel.

[0024] On the other hand, the present application provides an electronic device, including a middle frame and the above-mentioned display screen, wherein the display screen is installed in the space enclosed by the inner wall of the middle frame, and the routing area is folded relative to the display area to a side facing away from the display area through the bending area.

[0025] The above-mentioned display panel, display screen and electronic device, since at least one layer of the multi-layer organic film layers of the wiring part is formed with a groove along its own thickness direction, and the position of the groove on the organic film layer is between the recessed part and the wiring change part, the groove is used to block the intrusion path of water vapor flowing from the recessed part to the wiring change part, so as to achieve the effect of blocking water vapor from entering the wiring change part and corroding the first metal wiring and the second metal wiring, thereby improving the problem of poor display caused by corrosion of the first metal wiring and the second metal wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] FIG. 1 is a three-dimensional schematic diagram of an electronic device provided by an embodiment.

[0028] FIG. 2 is a schematic diagram of a cross-sectional structure of an electronic device at the cross section S in FIG. 1 according to an embodiment.

[0029] FIG. 3 is a schematic structural diagram of a display panel of a display screen of an electronic device according to an embodiment.

[0030] Figure 4 The present invention is a schematic top view of a partial structure of a display panel of a display screen in an electronic device according to an embodiment.

[0031] Figure 5 The wiring area of ​​the display panel of an embodiment is along Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0032] Figure 6 The wiring area of ​​the display panel of another embodiment is along the Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0033] Figure 7 The wiring area of ​​the display panel of another embodiment is along the Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0034] Figure 8 A wiring area of ​​a display panel according to another embodiment is provided along the Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0035] Fig. 9 In an electronic device of an embodiment, a wiring area of ​​a display panel of another embodiment is along Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0036] Fig.10 In an electronic device of an embodiment, a wiring area of ​​a display panel of another embodiment is along Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0037] Fig.11 In an electronic device of an embodiment, the wiring area of ​​the display panel is along Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0038] Fig.12 In another embodiment of the electronic device, the wiring area of ​​the display panel is along Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0039] Fig.13 In another embodiment of the electronic device, the wiring area of ​​the display panel is along Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0040] Fig.14 In another embodiment of the electronic device, the wiring area of ​​the display panel is along Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0041] Fig.15 A wiring area along a display panel of an electronic device according to another embodiment Figure 4 Schematic diagram of the cross-sectional structure of line II.

[0042] Fig.16 FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment.

[0043] Description of Figure Numbers:

[0044] 100. electronic device; 10. middle frame; 11. inner wall; 20. display screen; 20a. display surface; 21. display panel; 211. display area; 212. bending area; 213. wiring area; 201. organic film layer; 2011. first organic film layer; 2012. second organic film layer; 2013. third organic film layer; 2014. fourth organic film layer; 202. first metal wiring; 203. second metal wiring; 204. groove; 2041. first groove; 2042. second groove; 2043. third groove; 2044. fourth groove; 205. base layer; 214. recessed portion; 215. wiring portion; 22. supporting layer; 30. screen cover. DETAILED DESCRIPTION

[0045] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0046] As used herein, "electronic device" refers to a device that can receive and / or send communication signals, including but not limited to a device that is connected via any one or more of the following connection methods:

[0047] (1) Connection via wired lines, such as Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection;

[0048] (2) Via wireless interfaces, such as cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, and AM-FM broadcast transmitters.

[0049] An electronic device configured to communicate via a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0050] (1) Satellite phone or cellular phone;

[0051] (2) Personal Communications System (PCS) terminals that can combine cellular radio telephones with data processing, fax, and data communications capabilities;

[0052] (3) Radiotelephone, pager, Internet / Intranet access, Web browser, notepad, calendar, Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0053] (4) conventional laptop and / or handheld receivers;

[0054] (5) Conventional laptop and / or palmtop radiotelephone transceivers, etc.

[0055] 1 and 2 , an electronic device 100 is provided in an embodiment of the present application. The electronic device 100 may be a mobile phone or a wristband, or a tablet computer, which is not limited herein.

[0056] The electronic device 100 includes a middle frame 10 and a display screen 20. The display screen 20 is installed in the space enclosed by the inner side wall 11 of the middle frame 10. In some embodiments, the display screen 20 includes a display panel 21 and a support layer 22. The support layer 22 is used to support the display panel 21. The type of the display panel 21 can be an LCD panel or an OLED panel, which is not limited here.

[0057] In some embodiments, the electronic device 100 further includes a screen cover 30, and an edge of the screen cover 30 is connected to the middle frame 10. The screen cover 30 covers the display surface 20a of the display screen 20 to protect the display panel 21.

[0058] It should be noted that the middle frame 10, as a structural member supporting the display screen 20, is usually made of metal, but may also be made of glass or ceramic, which is not limited here. In some embodiments, the middle frame 10 may also be formed by integrally molding plastic and metal, for example, hot melt plastic is injected into a molded metal component, and after the hot melt plastic is solidified, it is integrally molded with the metal component.

[0059] The screen cover 30 and the middle frame 10 can be connected by thermosetting adhesive, which can ensure the stability of the connection between the two, and the assembly process is simple to reduce costs. In this embodiment, the display panel 21 is attached to the inner side of the screen cover 30, and the edge of the display panel 21 is 2.5D or 3D curved along the screen cover 30, so that the edge of the display panel 21 presents a curved display effect, so as to smoothly transition to the edge of the middle frame 10, and obtain a narrow frame visual effect.

[0060] The material of the screen cover 30 can be glass or transparent plastic, which is not limited here. As long as the screen cover 30 covers the display surface 20 a of the display panel 21 , the display panel 21 can be protected.

[0061] The display panel 21 includes a display area 211, a bending area 212 and a wiring area 213 connected in sequence. The display area 211 is used to emit light from the side where the display surface 20a is located for display. Based on the bending characteristics of the display panel 21, the bending area 212 can adapt to the needs of bending and folding.

[0062] The wiring area 213 is folded relative to the display area 211 to the side facing away from the display surface 20a via the bending area 212. In some embodiments, the display screen 20 includes a driver chip (not shown), which is disposed in the wiring area 213 and is used to drive the display panel 21 to display. Since the wiring area 213 is folded relative to the display area 211 to the side facing away from the display surface 20a via the bending area 212, when the driver chip is disposed in the wiring area 213, the driver chip can be folded to the side of the display area 211 facing away from the display surface 20a, thereby reducing the space occupied on the side where the display surface 20a is located, so as to reduce the width of the frame area and improve the screen-to-body ratio.

[0063] As shown in Figure 3, the film layer stacking thickness of the display panel 21 at the position corresponding to the bending area 212 is less than the film layer stacking thickness of the display panel 21 at the position corresponding to the routing area 213, so that a recessed portion 214 is formed at the position of the display panel 21 corresponding to the bending area 212, thereby making the bending area 212 easy to bend.

[0064] Combination Figure 4 and Figure 5 As shown, the wiring area 213 includes multiple organic film layers 201, a first metal wiring 202 and a second metal wiring 203. At least one organic film layer 201 is located between the first metal wiring 202 and the second metal wiring 203, and a wiring portion 215 is formed at the electrical contact position between the first metal wiring 202 and the second metal wiring 203.

[0065] The inventors found that in order to meet the needs of good bending, the film thickness at the bending area 212 is smaller than that at other areas, resulting in some edges of the film corresponding to the bending area 212. The bending area 212 is more prone to cracking than other positions due to bending, resulting in water vapor easily entering the edge of the film from the cracks in the bending area 212, so that the water vapor will flow along the film toward the routing area 213. For ease of understanding, Figure 4 and Figure 5 The dotted arrow R in the figure shows the water vapor intrusion path. It is understandable that, since the film layer is a sheet structure, when water vapor enters between two adjacent film layers, it will not only flow along the R direction, but may also flow in a direction at an angle to the R direction. In the embodiment of the present application, in order to solve the problem of corrosion caused by water vapor entering the line change part 215 when transmitting current between the first metal wiring 202 and the second metal wiring 203, what is considered here is to reduce or avoid the intrusion of water vapor into the line change part 215.

[0066] Based on this, in the embodiment of the present application, at least one of the multilayer organic film layers 201 is formed with a groove 204 along its own thickness direction. The position of the groove 204 on the organic film layer 201 is between the recessed portion 214 and the line-changing portion 215. In this way, if there is water vapor entering between the organic film layer 201 and its adjacent film layer from the position of the bending area 212, when the water vapor flows from the recessed portion 214 toward the line-changing portion 215, once the water vapor flows to the groove 204, it will not be easy for the water vapor to continue to flow toward the line-changing portion 215 because there is no tiny gap between adjacent film layers in the groove 204. At the same time, the space of the groove 204 provides space for the water vapor to evaporate, so as to reduce or prevent the water vapor from flowing to the line-changing portion 215. It can be seen that in the embodiment of the present application, the groove 204 can be used to block the intrusion path of water vapor flowing from the recessed portion 214 toward the line changing portion 215, so as to prevent water vapor from entering the line changing portion 215 and causing corrosion to the first metal wiring 202 and the second metal wiring 203, thereby improving the problem of poor display caused by corrosion of the first metal wiring 202 and the second metal wiring 203.

[0067] like Figure 5 As shown, the groove 204 has two groove walls 204a and 204b that are relatively spaced apart. One of the groove walls 204a faces the line-changing portion 215, and the other groove wall 204b faces the recessed portion 214. In this way, water vapor will pass through the positions of the two groove walls 204a and 204b in the process of flowing from the recessed portion 214 to the line-changing portion 215. Compared with when 204 is not set, the water vapor flows along the gap between two adjacent film layers. The spacing between the two groove walls 204a and 204b can slow down the efficiency of the water vapor flowing toward the line-changing portion 215. This is because the gap between adjacent film layers has a capillary-like effect, which accelerates the flow rate of water vapor, and the groove 204 runs through the film layer where it is located, so that the capillary effect will not be produced on the water vapor at the corresponding position of the groove 204. It can be seen that the groove 204 of the present application can slow down or even prevent water vapor from flowing from the recessed portion 214 to the line-changing portion 215, so as to improve the problem of poor display caused by corrosion of the metal wiring.

[0068] It should be noted that there are multiple first metal traces 202 and multiple second metal traces 203 , and the multiple first metal traces 202 and the multiple second metal traces 203 are electrically contacted one by one at the positions corresponding to the wiring switching parts 215 .

[0069] Combination Figure 6As shown, in some embodiments, a plurality of grooves 204 are formed on at least one organic film layer 201, and the plurality of grooves 204 are arranged along the length direction of the first metal wiring 202. Thus, the plurality of grooves 204 can be used to block the water vapor path multiple times, so as to further reduce the probability of water vapor entering the wiring portion 215 and corroding the first metal wiring 202 and the second metal wire, thereby improving the problem of poor display of the display panel 21.

[0070] It should be noted that the size of the groove 204 can be set according to the layout design requirements of the film layer. The specific position of the groove 204 is not limited here. As long as the groove 204 is located between the recessed portion 214 and the line-changing portion 215, it can block the invasion path of water vapor from the recessed portion 214 to the line-changing portion 215, thereby preventing water vapor from entering the line-changing portion 215 and corroding the first metal wiring 202 and the second metal wiring 203.

[0071] In some embodiments, the groove width of the groove 204 along the length direction of the first metal trace 202 is 5 μm-20 μm. For example, the groove width of the groove 204 is 5 μm, 10 μm, 15 μm or 20 μm.

[0072] The length direction of the first metal wiring 202 may be from the display area 211 to the wiring area 213 .

[0073] In some embodiments, the bending area 212 has a first sideline and a second sideline, the first sideline is connected to the display area 211, and the second sideline is connected to the wiring area 213. The recessed portion 214 is formed between the first sideline and the second sideline. Therefore, the groove 204 is located between the recessed portion 214 and the wiring portion 215, which can also be understood as the groove 204 is located between the second sideline and the wiring portion 215.

[0074] The first sideline and the second sideline are substantially parallel. The length direction of the first metal trace 202 may be substantially perpendicular to the extension direction of the first sideline. Thus, the groove width of the groove 204 may be understood as the dimension of the groove 204 in a direction perpendicular to the first sideline or the second sideline.

[0075] In some embodiments, the length direction of the groove 204 is substantially perpendicular to the first sideline or the second sideline. The length dimension of the groove 204 is not limited herein. In some embodiments, the length of the groove 204 spans across a plurality of second metal traces 203, that is, the second metal traces 203 span from the side of the groove 204 close to the first sideline to the side of the groove 204 close to the second sideline.

[0076] It should be noted that the above grooves 204 may be provided on two or more organic film layers 201. The grooves 204 on the organic film layers 201 may be provided in a certain regular pattern. Of course, they may also be provided according to the layout design of the film layer.

[0077] For example, combined with Figure 7 As shown, the routing area 213 includes a base layer 205, and multiple organic film layers 201 are stacked on the base layer 205. At least two adjacent organic film layers 201 are provided with grooves 204, and the width of the grooves 204 located on different organic film layers 201 gradually decreases in the direction in which the organic film layers 201 point to the base layer 205. Since the base layer 205 is used as the bottom layer, the recessed portion 214 is formed at a position away from the base layer 205, and water vapor invades from the boundary of the organic film layer 201 located at the recessed portion 214. Therefore, the grooves 204 on the organic film layer 201 far from the base layer 205 are set wider, which can extend the length of the water vapor invasion path to reduce the probability of water vapor invading the line change portion 215. Accordingly, the edge of the organic film layer 201 close to the base layer 205 is far from the recessed portion 214 , so the groove width of the groove 204 can be set smaller, so as to maintain the support and sealing effect of this part of the organic film layer 201 in the wiring area 213 .

[0078] In another embodiment, the wiring area 213 includes a base layer 205, a plurality of organic film layers 201 are stacked on the base layer 205, at least two adjacent organic film layers 201 are provided with grooves 204, and the grooves 204 located on different organic film layers 201 are arranged in the center along the length direction of the first metal wiring 202. For the grooves 204, the two grooves 204 are arranged in the center, which means that the side walls of these grooves 204 coincide with the center of the orthographic projection area on the organic film layer 201. For example, in combination Figure 7 As shown, the center lines of the grooves 204 on the three adjacent organic film layers 201 in the thickness direction of the organic film layers 201 overlap. This centering arrangement is conducive to adopting a unified positioning structure to position the jig used to process the grooves when the grooves 204 are set on different organic film layers 201, thereby simplifying the processing steps.

[0079] Combination Figure 8 As shown, the grooves 204 on different organic film layers 201 are not limited to being arranged in a central position. Figure 8As shown, the grooves 204 located on different organic film layers 201 are staggered in the length direction of the first metal wiring 202. The staggered arrangement means that the center of the orthographic projection area of ​​the side wall of the groove 204 on the organic film layer 201 does not overlap. This staggered arrangement scheme is conducive to selecting a suitable position to set the groove 204 on the corresponding organic film layer 201, so as to use the space that each organic film layer 201 can provide to set the groove 204.

[0080] It can be understood that in the above embodiment, in the direction of the organic film layer 201 pointing to the base layer 205, the groove width of the groove 204 located on different organic film layers 201 gradually decreases, thereby achieving both blocking the intrusion of water vapor and maintaining the support and sealing performance of the organic film layer 201.

[0081] It should be noted that the number of organic film layers 201 can be 2 layers or more than 2 layers. The number of organic film layers 201 is not limited here. For the display panel 21 of the present application, the layer structure of the display panel 21 can be configured as needed, as long as at least one layer of the multi-layer organic film layer 201 is penetrated along its own thickness direction to form a groove 204, and the position of the groove 204 on the organic film layer 201 is between the recessed portion 214 and the line-changing portion 215, the groove 204 can be used to block the water vapor intrusion path to improve the problem of poor display caused by corrosion of the metal wiring.

[0082] For ease of understanding, the structure of the display panel 21 is described below in conjunction with some embodiments, but it does not mean that the structure of the display panel 21 is limited thereto.

[0083] Combine again Figure 5 As shown, the routing area 213 includes a base layer 205, and the multilayer organic film layer 201 includes a first organic film layer 2011 and a second organic film layer 2012. The first organic film layer 2011 is arranged on the base layer 205, and the second organic film layer 2012 is arranged on the side of the first organic film layer 2011 facing away from the base layer 205. The first organic film layer 2011 is provided with a routing hole, and the first metal routing 202 is arranged between the first organic film layer 2011 and the base layer 205. The second metal routing 203 is arranged between the first organic film layer 2011 and the second organic film layer 2012. Part of the structure of the second metal routing 203 is accommodated in the routing hole and is in electrical contact with the first metal routing 202.

[0084] A first groove 2041 is provided on the first organic film layer 2011 between the corresponding recessed portion 214 and the line-changing portion 215. The first groove 2041 penetrates the first organic film layer 2011 along the thickness direction of the first organic film layer 2011. Thus, the first groove 2041 can be used to reduce the probability of water vapor invading the line-changing region along the first organic film.

[0085] The width of the first groove 2041 along the length direction of the first metal trace 202 is 5 μm to 20 μm. The width of the first groove 2041 may be 5 μm, 10 μm, 15 μm or 20 μm, which is limited here.

[0086] Combination Figure 8 As shown, in some embodiments, a second groove 2042 is provided between the corresponding recessed portion 214 and the line-changing portion 215 on the second organic film layer 2012 , and the second groove 2042 penetrates the second organic film layer 2012 along the thickness direction of the second organic film layer 2012 .

[0087] Along the length direction of the first metal wiring 202 , the first groove 2041 and the second groove 2042 are staggered.

[0088] Combination Fig. 9 As shown, along the length direction of the first metal trace 202 , the first groove 2041 and the second groove 2042 are arranged in the center, and the groove width of the first groove 2041 is smaller than the groove width of the second groove 2042 .

[0089] In some embodiments, the routing area 213 includes a third organic film layer 2013 , and the third organic film layer 2013 is disposed on a side of the second organic film layer 2012 facing away from the first organic film layer 2011 .

[0090] In some embodiments, the third organic film layer 2013 covers the second groove 2042 .

[0091] Combination Fig.10 As shown, in some embodiments, a third groove 2043 is provided on the third organic film layer 2013 between the corresponding recessed portion 214 and the line-changing portion 215. The third groove 2043 penetrates the third organic film layer 2013 along the thickness direction of the third organic film layer 2013, and the orthographic projection area of ​​the groove wall of the second groove 2042 on the third organic film layer 2013 is located in the area of ​​the third organic film layer 2013 where the third groove 2043 is provided and does not overlap each other.

[0092] Combination Fig.11 As shown, in some embodiments, a third groove 2043 is provided on the third organic film layer 2013 between the corresponding recessed portion 214 and the line-changing portion 215 , and the third groove 2043 is connected to the second groove 2042 .

[0093] Regardless of whether the second groove 2042 is connected to the third groove 2043 , the second groove 2042 and the third groove 2043 can both block the intrusion path of water vapor, thereby improving the problem of poor display caused by corrosion of metal wiring.

[0094] Combination Fig.12As shown, the groove wall of the second groove 2042 near the line change portion 215 is the first groove wall, and the groove wall of the third groove 2043 near the line change portion 215 is the second groove wall. The first groove wall and the second groove wall are staggered along the length direction of the first metal wiring 202, and the staggered distance between each other is 2μm~5μm. Through this structural setting, the adjacent organic film layers 201 can support each other while maintaining sufficient area to set the corresponding grooves 204 to block the water vapor intrusion path.

[0095] Combination Fig.13 As shown, in some embodiments, the wiring area 213 includes a third organic film layer 2013 and a fourth organic film layer 2014. The third organic film layer 2013 and the fourth organic film layer 2014 are sequentially disposed on a side of the second organic film layer 2012 that faces away from the first organic film layer 2011.

[0096] Combination Fig.14 As shown, at least one of the third organic film layer 2013 and the fourth organic film layer 2014 is provided with a groove 204 penetrating along the thickness direction thereof.

[0097] Combination Fig.15 As shown, the third organic film layer 2013 and the fourth organic film layer 2014 are respectively provided with a third groove 2043 and a fourth groove 2044 . In the length direction of the first metal wiring 202 , the third groove 2043 and the fourth groove 2044 are arranged in the center and have the same groove width.

[0098] In the above embodiment, no matter the position of the organic film layer 201 where the groove 204 is located, or the size of the groove 204, as long as the groove 204 is located between the recessed portion 214 and the line-changing portion 215 on the organic film layer, it can prevent water vapor from invading the line-changing portion 215 along the organic film layer 201, thereby reducing the probability of corrosion of the first metal wiring 202 and the second metal wiring 203, so as to improve the problem of poor display caused by corrosion of the metal wiring. The structure of the display panel 21 and the location of the groove 204 are not described in detail here.

[0099] refer to Fig.16 , Fig.16 The electronic device 100 is a schematic diagram of the structure of the electronic device 100 provided in the embodiment of the present application. The electronic device 100 may include a radio frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a wireless fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509. Those skilled in the art can understand that Fig.16 The structure of the electronic device 100 shown in the figure does not constitute a limitation on the electronic device 100, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0100] The radio frequency circuit 501 can be used to send and receive information, or receive and send signals during a call. In particular, after receiving the downlink information of the base station, it is handed over to one or more processors 508 for processing; in addition, the data related to the uplink is sent to the base station. Generally, the radio frequency circuit 501 includes but is not limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to the Global System of Mobile Communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.

[0101] The memory 502 can be used to store applications and data. The applications stored in the memory 502 include executable codes. The applications can be composed of various functional modules. The processor 508 executes various functional applications and data processing by running the applications stored in the memory 502. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the electronic device 100 (such as audio data, a phone book, etc.), etc. In addition, the memory 502 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 502 can also include a memory controller to provide the processor 508 and the input unit 503 with access to the memory 502.

[0102] The input unit 503 can be used to receive input digital, character information or user feature information (such as fingerprints), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, in a specific embodiment, the input unit 503 may include a touch-sensitive surface and other input devices. The touch-sensitive surface, also known as a touch display screen or a touch pad, can collect user touch operations on or near it (such as operations performed by users using fingers, styluses, or any other suitable objects or accessories on or near the touch-sensitive surface), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 508, and can receive and execute commands sent by the processor 508.

[0103] The display unit 504 may be used to display information input by the user or provided to the user and various graphical user interfaces of the electronic device 100, which may be composed of graphics, text, icons, videos, and any combination thereof. The display unit 504 may include the above-mentioned liquid crystal panel.

[0104] Furthermore, the touch-sensitive surface may cover a liquid crystal panel. When the touch-sensitive surface detects a touch operation on or near it, it is transmitted to the processor 508 to determine the type of touch event. The processor 508 then provides corresponding visual output on the liquid crystal panel according to the type of touch event.

[0105] Although in Fig.16 In the embodiment, the touch sensitive surface and the liquid crystal panel are used as two independent components to realize input and output functions, but in some embodiments, the touch sensitive surface and the liquid crystal panel can be integrated to realize input and output functions. It can be understood that the screen can include an input unit 503 and a display unit 504.

[0106] The electronic device 100 may also include at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the liquid crystal panel according to the brightness of the ambient light, and the proximity sensor may turn off the liquid crystal panel and / or the backlight when the electronic device 100 is moved to the ear. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that can also be configured in the electronic device 100, they will not be repeated here.

[0107] The audio circuit 506 can provide an audio interface between the user and the electronic device 100 through a speaker and a microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit it to the speaker, and convert it into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data, and then the audio data is output to the processor 508 for processing, and then sent to another electronic device 100 through the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuit 506 may also include an earphone socket to provide communication between an external earphone and the electronic device 100.

[0108] Wireless Fidelity (WiFi) is a short-range wireless transmission technology. The electronic device 100 can help users send and receive emails, browse web pages, and access streaming media through the wireless fidelity module 507, which provides users with wireless broadband Internet access. Fig.16 The wireless fidelity module 507 is shown, but it is understandable that it is not a necessary component of the electronic device 100 and can be omitted as needed without changing the essence of the invention.

[0109] The processor 508 is the control center of the electronic device 100. It uses various interfaces and lines to connect various parts of the entire electronic device 100. By running or executing applications stored in the memory 502 and calling data stored in the memory 502, it executes various functions of the electronic device 100 and processes data, thereby monitoring the electronic device 100 as a whole. Optionally, the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 508.

[0110] The electronic device 100 also includes a power supply 509 for supplying power to various components. Preferably, the power supply 509 can be logically connected to the processor 508 through a power management system, so that the power management system can manage charging, discharging, and power consumption management. The power supply 509 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0111] although Fig.16 Not shown, the electronic device 100 may also include a Bluetooth module, etc., which will not be described in detail here. In specific implementation, the above modules can be implemented as independent entities, or can be arbitrarily combined and implemented as the same or several entities. The specific implementation of the above modules can refer to the previous method embodiment, which will not be described in detail here.

[0112] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: It includes a display area, a wiring area and a bending area connecting the display area and the wiring area; the film layer stacking thickness of the display panel at the position corresponding to the bending area is less than the film layer stacking thickness of the display panel at the position corresponding to the wiring area, so that a recessed portion is formed at the position of the display panel corresponding to the bending area; the wiring area includes multiple organic film layers, a first metal wiring and a second metal wiring, at least one layer of the organic film layer is located between the first metal wiring and the second metal wiring, and a wiring change portion is formed at the electrical contact position between the first metal wiring and the second metal wiring, at least one layer of the multiple organic film layers is formed with a groove along its own thickness direction, and the position of the groove on the organic film layer is between the recessed portion and the wiring change portion.

2. The display panel according to claim 1, characterized in that: A plurality of the grooves are formed on at least one layer of the organic film, and the plurality of the grooves are arranged along the length direction of the first metal wiring; and / or the groove width of the grooves along the length direction of the first metal wiring is 5 μm to 20 μm.

3. The display panel according to claim 1, characterized in that: The routing area includes a base layer, multiple organic film layers are stacked on the base layer, at least two adjacent organic film layers are provided with the grooves, and the organic film layers point in the direction of the base layer, and the groove widths of the grooves on different organic film layers gradually decrease.

4. The display panel according to claim 1, characterized in that: The routing area includes a base layer, multiple organic film layers are stacked on the base layer, at least two adjacent organic film layers are provided with the grooves, and the grooves on different organic film layers are staggered along the length direction of the first metal routing.

5. The display panel according to claim 1, characterized in that: The routing area includes a base layer, multiple organic film layers are stacked on the base layer, at least two adjacent organic film layers are provided with the grooves, and the grooves on different organic film layers are centered along the length direction of the first metal routing.

6. The display panel according to claim 4 or 5, characterized in that: In the direction from the organic film layer to the base layer, the widths of the grooves on different organic film layers gradually decrease.

7. The display panel according to claim 1, characterized in that: The routing area includes a base layer, and the multiple organic film layers include a first organic film layer and a second organic film layer. The first organic film layer is arranged on the base layer, and the second organic film layer is arranged on the side of the first organic film layer facing away from the base layer. The first organic film layer is provided with a routing hole, the first metal routing is arranged between the first organic film layer and the base layer, and the second metal routing is arranged between the first organic film layer and the second organic film layer. Part of the structure of the second metal routing is accommodated in the routing hole and is in electrical contact with the first metal routing.

8. The display panel according to claim 7, characterized in that: A first groove is provided on the first organic film layer corresponding to the recessed portion and the line-changing portion, and the first groove penetrates the first organic film layer along a thickness direction of the first organic film layer.

9. The display panel according to claim 8, characterized in that: The width of the first groove along the length direction of the first metal wiring is 5 μm-20 μm.

10. The display panel according to claim 7 or 8, characterized in that: A second groove is provided on the second organic film layer corresponding to the recessed portion and the line-changing portion, and the second groove penetrates the second organic film layer along the thickness direction of the second organic film layer.

11. The display panel according to claim 10, characterized in that: In the length direction of the first metal wiring, the first groove and the second groove are staggered; And / or, along the length direction of the first metal wiring, the first groove and the second groove are arranged in the center, and the groove width of the first groove is smaller than the groove width of the second groove.

12. The display panel according to claim 10, characterized in that: The routing area includes a third organic film layer, and the third organic film layer is arranged on a side of the second organic film layer facing away from the first organic film layer.

13. The display panel according to claim 12, characterized in that: The third organic film layer covers the second groove; And / or, a third groove is arranged on the third organic film layer corresponding to the recessed portion and the line-changing portion, the third groove penetrates the third organic film layer along the thickness direction of the third organic film layer, and the orthographic projection area of ​​the groove wall of the second groove on the third organic film layer is located in the area of ​​the third organic film layer where the third groove is arranged and do not overlap with each other.

14. The display panel according to claim 12, characterized in that: A third groove is provided on the third organic film layer corresponding to the recessed portion and the line-changing portion, and the third groove is connected to the second groove.

15. The display panel according to claim 14, characterized in that: The groove wall of the second groove close to the line-changing portion is the first groove wall, and the groove wall of the third groove close to the line-changing portion is the second groove wall. The first groove wall and the second groove wall are staggered along the length direction of the first metal routing, and the staggered distance between them is 2μm~5μm.

16. The display panel according to claim 10, characterized in that: The routing area includes a third organic film layer and a fourth organic film layer, and the third organic film layer and the fourth organic film layer are sequentially arranged on a side of the second organic film layer facing away from the first organic film layer.

17. The display panel according to claim 16, characterized in that: At least one of the third organic film layer and the fourth organic film layer is provided with the groove penetrating along the thickness direction thereof.

18. The display panel according to claim 16, characterized in that: The third organic film layer and the fourth organic film layer are respectively provided with a third groove and a fourth groove. In the length direction of the first metal wiring, the third groove and the fourth groove are arranged in the center and have the same groove width.

19. A display screen, characterized in that: Comprising a display panel as described in any one of claims 1-18.

20. An electronic device, characterized in that: It comprises a middle frame and a display screen as claimed in claim 19, wherein the display screen is installed in a space enclosed by an inner wall of the middle frame, and the wiring area is folded relative to the display area to a side facing away from the display area through the bending area.

Images