CN114201074A - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN114201074A CN114201074A CN202111519733.2A CN202111519733A CN114201074A CN 114201074 A CN114201074 A CN 114201074A CN 202111519733 A CN202111519733 A CN 202111519733A CN 114201074 A CN114201074 A CN 114201074A
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- touch
- display panel
- insulating layer
- inorganic insulating
- touch display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
Abstract
The application discloses a touch display panel and a touch display device. The touch display panel comprises a display main body, a first touch electrode, an inorganic insulating layer, a conductive bridge and a buffer structure; the first touch electrode is arranged on one side of the display main body; the inorganic insulating layer is arranged on one side of the first touch electrode, which is far away from the display main body, and a connecting hole is formed in the inorganic insulating layer; the conductive bridge is arranged on one side of the inorganic insulating layer, which is far away from the first touch electrode, and the conductive bridge is connected with the first touch electrode through the connecting hole; the buffer structure is arranged at the joint of the top surface of the inorganic insulating layer and the hole wall of the connecting hole, and the buffer structure is in bridge contact with the conductive frame. The application improves the touch effect of the touch display panel.
Description
Technical Field
The application relates to the technical field of display, in particular to a touch display panel and a touch display device.
Background
Since the in-plane touch technology integrates an Organic Light-Emitting Diode (OLED) and a touch panel, the in-plane touch technology has better transmittance, bending resistance, Light weight, and thinness compared to the external touch technology, and will become a future trend of flexible OLED display.
At present, a touch control film layer in an OLED touch panel generally includes a touch control electrode layer, an inorganic insulating layer, and a bridging layer, which are stacked, and a touch control electrode in the touch control electrode layer and the bridging layer are connected through a via hole in the inorganic insulating layer. However, since the bridging layer is a metal layer, the stress difference between the metal layer and the inorganic insulating layer is large, and when the touch panel is bent to a certain extent, the bridging layer at the position of the via hole is easily broken, which results in a lap joint failure between the bridging layer and the touch electrode, and further affects the touch effect.
Disclosure of Invention
The embodiment of the application provides a touch display panel and a touch display device, which are used for solving the technical problem that the touch effect is influenced by large stress difference between a bridging layer and an inorganic insulating layer.
An embodiment of the present application provides a touch display panel, which includes:
a display main body;
the first touch electrode is arranged on one side of the display main body;
the inorganic insulating layer is arranged on one side, away from the display main body, of the first touch electrode, and a connecting hole is formed in the inorganic insulating layer;
the conductive bridge is arranged on one side, far away from the first touch electrode, of the inorganic insulating layer and is connected with the first touch electrode through the connecting hole; and
the buffer structure is arranged at the joint of the top surface of the inorganic insulating layer and the hole wall of the connecting hole, and the buffer structure is in contact with the conductive frame bridge.
Optionally, in some embodiments of the present application, the buffer structure extends from the top surface of the inorganic insulating layer to the hole wall of the connection hole.
Optionally, in some embodiments of the present application, a surface of the buffer structure contacting the conductive frame bridge has an inclined surface, a stepped surface, or a curved surface.
Optionally, in some embodiments of the present application, the material of the buffer structure includes an organic material, a metal, or an alloy.
Optionally, in some embodiments of the application, the buffer structure extends from the top surface of the inorganic insulating layer to the bottom of the connection hole, the buffer structure is a conductive structure, and the conductive bridge is connected to the first touch electrode through the buffer structure.
Optionally, in some embodiments of the present application, the buffer structure is formed on a surface of the inorganic insulating layer, and a surface of the buffer structure facing the conductive bridge is a buffer surface, and the conductive bridge is in contact with the buffer surface.
Optionally, in some embodiments of the present application, the buffer surface is a stepped surface or an arc surface.
Optionally, in some embodiments of the present application, the buffer surface is an inclined surface, and an included angle between the inclined surface and a plane where the display main body is located is an obtuse angle.
Optionally, in some embodiments of the present application, the touch display panel further includes a second touch electrode, and the second touch electrode is disposed on the same layer as the first touch electrode and located between two adjacent first touch electrodes.
An embodiment of the present application further provides a touch display device, which includes the touch display panel according to any one of the foregoing embodiments.
Compared with the touch display panel in the prior art, the touch display panel provided by the application is provided with the buffer structure, the buffer structure is arranged at the joint of the top surface of the inorganic insulating layer and the hole wall of the connecting hole, the conductive bridge is contacted with the inorganic insulating layer through the buffer structure at the connecting hole, and therefore the buffer effect of the buffer structure is utilized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a touch display panel according to a first embodiment of the present application.
Fig. 2 is a schematic structural diagram of a touch display panel according to a second embodiment of the present application.
Fig. 3 is a schematic structural diagram of a touch display panel according to a third embodiment of the present application.
Fig. 4 is a schematic structural diagram of a touch display panel according to a fourth embodiment of the present application.
Fig. 5 is a schematic structural diagram of a touch display panel according to a fifth embodiment of the present application.
Fig. 6 is a schematic structural diagram of a touch display panel according to a sixth embodiment of the present application.
Fig. 7 is a schematic structural diagram of a touch display panel according to a seventh embodiment of the present application.
Fig. 8 is a schematic structural diagram of a touch display panel according to an eighth embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the application provides a touch display panel and a touch display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
The application provides a touch display panel, which comprises a display main body, a first touch electrode, an inorganic insulating layer, a conductive bridge and a buffer structure. The first touch electrode is arranged on one side of the display main body. The inorganic insulating layer is arranged on one side of the first touch electrode, which is far away from the display main body. The inorganic insulating layer is provided with a connecting hole. The conductive bridge is arranged on one side of the inorganic insulating layer, which is far away from the first touch electrode. The conductive bridge is connected with the first touch electrode through the connecting hole. The buffer structure is arranged at the joint of the top surface of the inorganic insulating layer and the hole wall of the connecting hole. The buffer structure is in bridge contact with the conductive frame.
From this, touch-control display panel that this application provided is through setting up buffer structure, and place buffer structure in the top surface of inorganic insulating layer and the pore wall junction of connecting hole, make electrically conductive bridging pass through buffer structure and inorganic insulating layer contact at connecting hole department, therefore utilize buffer structure's cushioning effect, this application can reduce the stress that electrically conductive bridging received in connecting hole department, and is further, even touch-control display panel takes place to buckle many times, above-mentioned setting can reduce the cracked probability of electrically conductive bridging in connecting hole department, with the overlap joint failure probability between reduction electrically conductive bridging and the touch electrode, thereby be favorable to improving touch-control display panel's touch-control effect.
The touch display panel provided by the present application is described in detail by specific embodiments below.
Referring to fig. 1, a touch display panel 100 is provided in a first embodiment of the present application. The touch display panel 100 includes a display main body 10, a first touch electrode 11, a second touch electrode 12, an inorganic insulating layer 13, a conductive bridge 14, a buffer structure 15, and a protection layer 16.
Specifically, the display main body 10 may include a substrate, a thin film transistor layer, a light emitting layer, and an encapsulation layer (not shown in the figure) that are sequentially disposed, and related technologies may refer to the prior art, which are not described herein again.
The first touch electrode 11 is disposed at one side of the display main body 10. The second touch electrode 12 is disposed on the same layer as the first touch electrode 11. The second touch electrode 12 is located between two adjacent first touch electrodes 11. The first touch electrode 11 and the second touch electrode 12 are prepared by using the same photomask. Specifically, the material of the first touch electrode 11 and the second touch electrode 12 may be low-resistance metal or alloy such as Ti-Al-Ti, Mo, and the like.
It should be noted that the first touch electrode 11 may be a touch driving electrode, and the second touch electrode 12 is a touch sensing electrode; alternatively, the first touch electrode 11 may be a touch sensing electrode, and the second touch electrode 12 is a touch driving electrode, and the relative type of the first touch electrode 11 and the second touch electrode 12 is not specifically limited in this application.
The inorganic insulating layer 13 is disposed on a side of the first touch electrode 11 away from the display body 10. The inorganic insulating layer 13 has a connection hole 131 opened therein. The connection hole 131 is disposed opposite to the first touch electrode 11 and exposes the first touch electrode 11. The material of the inorganic insulating layer 13 may include one or more of silicon oxide, silicon nitride, and silicon oxynitride.
The conductive bridge 14 is disposed on a side of the inorganic insulating layer 13 away from the first touch electrode 11. The conductive bridge 14 is connected to the first touch electrode 11 through the connection hole 131. That is, two adjacent first touch electrodes 11 are connected through a conductive bridge 14. The material of the conductive bridge 14 may be low-resistance metal or alloy such as Ti-Al-Ti, Mo, etc.
The buffer structure 15 is disposed at a junction a of the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131. The buffer structure 15 is in contact with the conductive bridge 14. In the present embodiment, the buffer structure 15 extends from the top surface of the inorganic insulating layer 13 to the hole wall of the connection hole 131. The contact part of the buffer structure 15 and the conductive bridge 14 is in a right angle shape.
In the above configuration, the buffering effect of the buffering structure 15 is utilized to reduce the stress applied to the conductive bridge 14 at the connection hole 131, so that even if the touch display panel 100 is bent for multiple times, the probability of fracture of the conductive bridge 14 at the connection hole 131 can be reduced, and thus the probability of failure of the bonding between the conductive bridge 14 and the first touch electrode 11 can be reduced, so as to improve the touch effect of the touch display panel 100.
Specifically, the material of the buffer structure 15 includes an organic material, a metal, or an alloy. Wherein the organic material may include one or more of a polyacryl-based resin, a polyimide-based resin, a polyamide-based resin, a siloxane-based resin, an acryl-based resin, and an epoxy-based resin; the metal can be titanium or silver and other metal materials with good flexibility and ductility; the alloy may be an alloy composed of the above-described metallic materials. Compared with inorganic materials, the above materials have good flexibility, so that the buffer structure 15 has better buffer effect to better reduce the stress on the conductive bridge 14 at the connection hole 131. In the present embodiment, the material of the buffer structure 15 is an organic material. Here, the buffer structure 15 may be formed by a coating or spraying process.
The protective layer 16 is disposed on a side of the conductive bridge 14 away from the inorganic insulating layer 13. The material of the protective layer 16 may include one or more of silicon oxide, silicon nitride, and silicon oxynitride.
In the touch display panel 100 provided in the first embodiment of the present application, the buffer structure 15 is disposed at the joint a between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, and the buffer structure 15 extends from the top surface of the inorganic insulating layer 13 to the hole wall of the connection hole 131, so that the conductive bridge 14 contacts with the inorganic insulating layer 13 at the connection hole 131 through the buffer structure 15, and the stress applied to the conductive bridge 14 at the connection hole 131 is reduced by using the buffer effect of the buffer structure 15, and thus even if the touch display panel 100 is bent for multiple times, the probability of fracture of the conductive bridge 14 at the connection hole 131 can be reduced, thereby reducing the probability of overlapping failure between the conductive bridge 14 and the first touch electrode 11, and improving the touch effect of the touch display panel 100.
Referring to fig. 2, a touch display panel 200 is provided in a second embodiment of the present application. The touch display panel 200 provided in the second embodiment of the present application is different from the first embodiment in that: the surface of the buffer structure 15 contacting the conductive bridge 14 has an inclined surface 151, the inclined surface 151 corresponds to the junction a between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, and an included angle M between the inclined surface 151 and the plane of the display main body 10 is an obtuse angle.
In the present embodiment, the surface of the buffer structure 15 contacting the conductive bridge 14 is provided with the inclined surface 151 at the joint a between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, so that the contact area between the buffer structure 15 and the conductive bridge 14 is increased, and the stress applied to the conductive bridge 14 at the connection hole 131 can be further reduced, so as to further reduce the fracture probability of the conductive bridge 14.
Referring to fig. 3, a touch display panel 300 is provided in a third embodiment of the present application. The touch display panel 300 provided in the third embodiment of the present application is different from the first embodiment in that: the surface of the buffer structure 15 contacting the conductive bridge 14 has a step surface 152, and the step surface 152 corresponds to the junction a between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131.
In the embodiment, the surface of the buffer structure 15 contacting the conductive bridge 14 is configured to have the step surface 152 at the joint a between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, so that the contact area between the buffer structure 15 and the conductive bridge 14 is increased, and the stress applied to the conductive bridge 14 at the connection hole 131 can be further reduced, so as to further reduce the fracture probability of the conductive bridge 14.
Referring to fig. 4, a touch display panel 400 is provided in a fourth embodiment of the present application. The touch display panel 400 provided in the fourth embodiment of the present application is different from the first embodiment in that: the surface of the buffer structure 15 contacting the conductive bridge 14 has a curved surface 153, and the curved surface 153 corresponds to the joint a between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131.
In the present embodiment, the curved surface 153 is a circular arc surface. In the arrangement, the arc surface is arranged on the surface of the buffer structure 15, which is in contact with the conductive bridge 14, at the joint a between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, so that the contact area between the buffer structure 15 and the conductive bridge 14 is increased, the stress applied to the conductive bridge 14 at the connection hole 131 can be further reduced, and the fracture probability of the conductive bridge 14 can be further reduced.
Referring to fig. 5, a fifth embodiment of the present application provides a touch display panel 500. The touch display panel 500 provided in the fifth embodiment of the present application is different from the touch display panel of the first embodiment in that: the buffer structure 15 extends from the top surface of the inorganic insulating layer 13 to the bottom of the connection hole 131, the buffer structure 15 is a conductive structure, and the conductive bridge 14 is connected to the first touch electrode 11 through the buffer structure 15.
In particular, the material of the conductive structure may comprise a metal or an alloy. Wherein, the metal can be titanium or silver and other metal materials with good flexibility and ductility; the alloy may be an alloy composed of the above-described metallic materials.
In this embodiment, the buffer structure 15 is configured to extend from the top surface of the inorganic insulating layer 13 to the bottom of the connection hole 131, so that the contact between the conductive bridge 14 in the connection hole 131 and the buffer structure 15 is maximized, the conductive bridge 14 is completely separated from the inorganic insulating layer 13 in the connection hole 131, the influence caused by an excessive stress difference between the conductive bridge 14 and the inorganic insulating layer 13 is avoided, and further the stress applied to the conductive bridge 14 in the connection hole 131 can be greatly reduced, so that the fracture probability of the conductive bridge 14 in the connection hole 131 can be further reduced, the lap joint failure probability between the conductive bridge 14 and the first touch electrode 11 is further reduced, and the touch effect of the touch display panel 500 is improved.
Referring to fig. 6, a touch display panel 600 is provided in a sixth embodiment of the present application. The touch display panel 600 includes a display main body 10, a first touch electrode 11, a second touch electrode 12, an inorganic insulating layer 13, a conductive bridge 14, a buffer structure 15, and a protection layer 16.
Specifically, the display main body 10 may include a substrate, a thin film transistor layer, a light emitting layer, and an encapsulation layer (not shown in the figure) that are sequentially disposed, and related technologies may refer to the prior art, which are not described herein again.
The first touch electrode 11 is disposed at one side of the display main body 10. The second touch electrode 12 is disposed on the same layer as the first touch electrode 11. The second touch electrode 12 is located between two adjacent first touch electrodes 11. The first touch electrode 11 and the second touch electrode 12 are prepared by using the same photomask. Specifically, the material of the first touch electrode 11 and the second touch electrode 12 may be low-resistance metal or alloy such as Ti-Al-Ti, Mo, and the like.
It should be noted that the first touch electrode 11 may be a touch driving electrode, and the second touch electrode 12 is a touch sensing electrode; alternatively, the first touch electrode 11 may be a touch sensing electrode, and the second touch electrode 12 is a touch driving electrode, and the relative type of the first touch electrode 11 and the second touch electrode 12 is not specifically limited in this application.
The inorganic insulating layer 13 is disposed on a side of the first touch electrode 11 away from the display body 10. The inorganic insulating layer 13 has a connection hole 131 opened therein. The connection hole 131 is disposed opposite to the first touch electrode 11 and exposes the first touch electrode 11. The material of the inorganic insulating layer 13 may include one or more of silicon oxide, silicon nitride, and silicon oxynitride.
The conductive bridge 14 is disposed on a side of the inorganic insulating layer 13 away from the first touch electrode 11. The conductive bridge 14 is connected to the first touch electrode 11 through the connection hole 131. That is, two adjacent first touch electrodes 11 are connected through a conductive bridge 14. The material of the conductive bridge 14 may be low-resistance metal or alloy such as Ti-Al-Ti, Mo, etc.
The buffer structure 15 is disposed at a junction a of the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131. The buffer structure 15 is in contact with the conductive bridge 14. In the present embodiment, the buffer structure 15 is formed on the surface of the inorganic insulating layer 13, a surface of the buffer structure 15 facing the conductive bridge 14 is a buffer surface 15a, and the conductive bridge 14 is in contact with the buffer surface 15 a. That is, the present embodiment forms the buffer structure 15 having the buffer surface 15a directly in the inorganic insulating layer 13, specifically, forms the buffer surface 15a in the corner region between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131.
In the above arrangement, the buffering effect of the buffering surface 15a is utilized to reduce the stress applied to the conductive bridge 14 at the connection hole 131, so that even if the touch display panel 600 is bent for multiple times, the probability of fracture of the conductive bridge 14 at the connection hole 131 can be reduced, and thus the probability of failure of the bonding between the conductive bridge 14 and the first touch electrode 11 can be reduced, so as to improve the touch effect of the touch display panel 600. In addition, since the buffer surface 15a is directly formed on the inorganic insulating layer 13, additional film structures are not required, and thus raw materials can be saved, which is beneficial to reducing the process cost.
In the present embodiment, the buffer surface 15a is a stepped surface. The step surface can increase the contact area between the inorganic insulating layer 13 and the conductive bridge 14, so as to further reduce the stress applied to the conductive bridge 14 at the connection hole 131, and further reduce the fracture probability of the conductive bridge 14.
In this embodiment, a mask may be added in the preparation process of the inorganic insulating layer 13 to form the patterned buffer surface 15 a; alternatively, the inorganic insulating layer 13 may be patterned using a halftone mask to form the buffer surface 15a together with the connection hole 131, and the process for preparing the buffer surface 15a is not particularly limited in the present application.
The protective layer 16 is disposed on a side of the conductive bridge 14 away from the inorganic insulating layer 13. The material of the protective layer 16 may include one or more of silicon oxide, silicon nitride, and silicon oxynitride.
In the touch display panel 600 provided by the sixth embodiment of the present application, the step surface is formed in the corner area between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, the conductive bridge 14 contacts with the step surface, and the stress applied to the connection hole 131 by the conductive bridge 14 is reduced by using the buffering effect of the step surface, so that even if the touch display panel 600 is bent for multiple times, the probability of fracture of the conductive bridge 14 at the connection hole 131 can be reduced, and therefore, the probability of lap joint failure between the conductive bridge 14 and the first touch electrode 11 can be reduced, so as to improve the touch effect of the touch display panel 600.
Referring to fig. 7, a touch display panel 700 is provided in a seventh embodiment of the present application. The touch display panel 700 provided in the seventh embodiment of the present application is different from the sixth embodiment in that: the buffer surface 15a is an inclined surface, and an included angle N between the inclined surface and the plane where the display main body 10 is located is an obtuse angle.
In the embodiment, the inclined surface is formed in the corner region between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, so that the contact area between the inorganic insulating layer 13 and the conductive bridge 14 is increased, and thus the stress applied to the conductive bridge 14 at the connection hole 131 can be further reduced, and the fracture probability of the conductive bridge 14 can be further reduced.
Referring to fig. 8, an eighth embodiment of the present application provides a touch display panel 800. The touch display panel 800 according to the eighth embodiment of the present application is different from the sixth embodiment in that: the buffer surface 15a is a circular arc surface.
In the embodiment, the arc surface is formed in the corner region between the top surface of the inorganic insulating layer 13 and the hole wall of the connection hole 131, so that the contact area between the inorganic insulating layer 13 and the conductive bridge 14 is increased, and thus the stress applied to the conductive bridge 14 at the connection hole 131 can be further reduced, and the fracture probability of the conductive bridge 14 can be further reduced.
The application also provides a touch display device. The touch display device can be any product or component with touch and display functions, such as electronic paper, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. The touch display device includes a housing and a touch display panel disposed in the housing, where the touch display panel may be the touch display panel described in any of the foregoing embodiments, and a specific structure of the touch display panel may refer to the description of the foregoing embodiments, and is not described herein again.
The touch display panel and the touch display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the method and the core ideas of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A touch display panel, comprising:
a display main body;
the first touch electrode is arranged on one side of the display main body;
the inorganic insulating layer is arranged on one side, away from the display main body, of the first touch electrode, and a connecting hole is formed in the inorganic insulating layer;
the conductive bridge is arranged on one side, far away from the first touch electrode, of the inorganic insulating layer and is connected with the first touch electrode through the connecting hole; and
the buffer structure is arranged at the joint of the top surface of the inorganic insulating layer and the hole wall of the connecting hole, and the buffer structure is in contact with the conductive frame bridge.
2. The touch display panel of claim 1, wherein the buffer structure extends from the top surface of the inorganic insulating layer to the hole wall of the connection hole.
3. The touch display panel of claim 2, wherein a surface of the buffer structure contacting the conductive frame bridge has an inclined surface, a stepped surface, or a curved surface.
4. The touch display panel of claim 2, wherein the material of the buffer structure comprises an organic material, a metal, or an alloy.
5. The touch display panel according to claim 2, wherein the buffer structure extends from the top surface of the inorganic insulating layer to the bottom of the connection hole, the buffer structure is a conductive structure, and the conductive bridge is connected to the first touch electrode through the buffer structure.
6. The touch display panel according to claim 1, wherein the buffer structure is formed on a surface of the inorganic insulating layer, a surface of the buffer structure facing the conductive bridge is a buffer surface, and the conductive bridge is in contact with the buffer surface.
7. The touch display panel of claim 6, wherein the buffer surface is a step surface or an arc surface.
8. The touch display panel according to claim 6, wherein the buffer surface is an inclined surface, and an included angle between the inclined surface and the plane of the display main body is an obtuse angle.
9. The touch display panel according to claim 1, further comprising a second touch electrode disposed on the same layer as the first touch electrode and located between two adjacent first touch electrodes.
10. A touch display device comprising the touch display panel according to any one of claims 1 to 9.
Priority Applications (1)
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| CN202111519733.2A CN114201074A (en) | 2021-12-13 | 2021-12-13 | Touch display panel and touch display device |
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| CN202111519733.2A CN114201074A (en) | 2021-12-13 | 2021-12-13 | Touch display panel and touch display device |
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| CN114201074A true CN114201074A (en) | 2022-03-18 |
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