CN112965638A - Touch display panel and display device - Google Patents
Touch display panel and display device Download PDFInfo
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- CN112965638A CN112965638A CN202110443890.3A CN202110443890A CN112965638A CN 112965638 A CN112965638 A CN 112965638A CN 202110443890 A CN202110443890 A CN 202110443890A CN 112965638 A CN112965638 A CN 112965638A
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- 239000011810 insulating material Substances 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 4
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- 239000000463 material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
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Abstract
The embodiment of the application provides a touch display panel and a display device. In the touch display panel provided in the embodiment of the present application, the touch layer includes a touch electrode array located in the display area and a touch electrode structure located in the non-display area at the periphery of the display area, and because of the first touch electrode structure of the touch electrode structure, the second touch electrode located at one edge of the touch electrode array is close to each second touch electrode string, and/or the second touch electrode structure of the touch electrode structure is close to the first touch electrode located at the other edge of the touch electrode array of each first touch electrode string. The first touch electrode and the second touch electrode structure at the edge of the display area form a capacitance structure, and/or the second touch electrode and the first touch electrode structure at the edge of the display area form a capacitance structure, so that the touch performance at the edge of the display area of the touch display panel can be improved, and the use experience of a user can be guaranteed.
Description
Technical Field
The application relates to the technical field of display equipment, in particular to a touch display panel and a display device.
Background
With the development of display technologies, the application range of touch display panels is wider and wider. Most touch structures applied to display panels at present are FMLOC (Flexible Multi-Layer On Cell) touch structures, and the FMLOC touch structures realize touch control through metal grid electrode layers.
However, in the current touch display panel, the FMLOC touch structure is located at a portion of a certain edge of the display area, and usually only has a single touch driving electrode block or a single touch sensing electrode block, so that the touch performance at the edge of the display area in the touch display panel is poor, and the use experience of a user is affected.
Disclosure of Invention
The application provides a touch display panel and a display device aiming at the defects of the prior art, and is used for solving the technical problem that the touch performance at the edge of a display area in the touch display panel is poor in the prior art.
In a first aspect, an embodiment of the present application provides a touch display panel, including: a touch layer;
the touch layer comprises a touch electrode array positioned in the display area and a touch electrode structure positioned in the non-display area at the periphery of the display area;
the touch electrode array comprises a plurality of first touch electrode strings extending along a first direction and a plurality of second touch electrode strings extending along a second direction, and the touch electrode structure comprises at least one of a first touch electrode structure and a second touch electrode structure;
the first touch electrode structure is close to the second touch electrodes of the second touch electrode strings and positioned at one edge of the touch electrode array, and the first touch electrode structure and the second touch electrodes are insulated from each other; and/or the second touch electrode structure is close to the first touch electrode positioned at the other edge of the touch electrode array of each first touch electrode string, and the second touch electrode structure and the first touch electrode are insulated from each other.
In a second aspect, an embodiment of the present application provides a display device, including: the touch display panel provided by the first aspect is provided.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:
in the touch display panel provided in the embodiment of the present application, the touch layer includes a touch electrode array located in the display area and a touch electrode structure located in the non-display area at the periphery of the display area, and because of the first touch electrode structure of the touch electrode structure, the second touch electrode located at one edge of the touch electrode array is close to each second touch electrode string, and/or the second touch electrode structure of the touch electrode structure is close to the first touch electrode located at the other edge of the touch electrode array of each first touch electrode string. Therefore, the first touch electrode and the second touch electrode structure positioned at the edge of the display area in the touch display panel form a capacitance structure, and/or the second touch electrode and the first touch electrode structure positioned at the edge of the display area form a capacitance structure, so that the touch performance of the display area edge of the touch display panel can be improved, and the use experience of a user can be guaranteed.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of the touch display panel shown in fig. 1 with the first touch trace removed according to an embodiment of the present disclosure.
Description of reference numerals:
100-a display area; 200-a non-display area;
10-a first touch electrode string; 11-a first touch electrode;
20-a second touch electrode string; 21-a second touch electrode;
30-a first touch electrode structure;
40-a second touch electrode structure;
51-a first touch trace; 52-first bridging trace;
61-a second touch trace; 62-a second bridging trace;
70-third bridging trace.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is to be understood that the term "and/or" as used herein is intended to include all or any and all combinations of one or more of the associated listed items.
The inventor of the application researches and discovers that in a display panel applying an FMLOC touch structure at present, due to the fact that the portion of the FMLOC touch structure located at the edge of a display area is provided with only a single touch driving electrode block or a single touch sensing electrode block, namely, a capacitance structure cannot be formed at the edge of the display area, touch operation of a user cannot be effectively monitored at the edge of the display area, and therefore touch performance of the edge of the display area in the touch display panel is poor, and use experience of the user is affected. Moreover, the capacitance signal at the edge of the display area is compensated through the algorithm, so that the power consumption is greatly increased, the cruising ability of the display device is reduced, and the use experience of a user is influenced.
The application provides a touch display panel and a display device, which aim to solve the technical problems in the prior art.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
An embodiment of the present application provides a touch display panel, a schematic structural diagram of which is shown in fig. 1, including: a touch layer;
the touch layer comprises a touch electrode array positioned in the display area 100 and a touch electrode structure positioned in the non-display area 200 at the periphery of the display area 100;
the touch electrode array includes a plurality of first touch electrode serials 10 extending along a first direction and a plurality of second touch electrode serials 20 extending along a second direction, the touch electrode structure includes at least one of a first touch electrode structure 30 and a second touch electrode structure 40;
the first touch electrode structure 30 is close to the second touch electrodes 21 of each second touch electrode string 20, which are positioned at one edge of the touch electrode array, and the first touch electrode structure 30 and the second touch electrodes 21 are insulated from each other; and/or the second touch electrode structure 40 is close to the first touch electrode 11 of each first touch electrode string 10 located at the other edge of the touch electrode array, and the second touch electrode structure 40 and the first touch electrode 11 are insulated from each other.
In the touch display panel provided in the embodiment of the present application, the touch layer includes a touch electrode array located in the display area 100 and a touch electrode structure located in the non-display area 200 at the periphery of the display area 100, and due to the first touch electrode structures 30 of the touch electrode structure, the second touch electrodes 21 located at one edge of the touch electrode array are located close to each second touch electrode string 20, and/or the second touch electrode structures 40 of the touch electrode structure are located close to the first touch electrodes 11 located at the other edge of the touch electrode array of each first touch electrode string 10. Therefore, the first touch electrode 11 and the second touch electrode structure 40 at the edge of the display area 100 in the touch display panel form a capacitance structure, and/or the second touch electrode 21 and the first touch electrode structure 30 at the edge of the display area form a capacitance structure, so that the touch performance at the edge of the display area 100 of the touch display panel can be improved, and the use experience of a user can be guaranteed.
In the embodiment of the present application, the touch display panel includes a display area 100 and a non-display area 200 surrounding the display area 100, and the touch layer of the touch display panel includes a touch electrode array located in the display area 100 and a touch electrode structure located in the non-display area 200 at the periphery of the display area 100; specifically, the touch electrode array includes a plurality of first touch electrode serials 10 extending along a first direction and a plurality of second touch electrode serials 20 extending along a second direction, and the touch electrode structure includes at least one of a first touch electrode structure 30 and a second touch electrode structure 40.
In the embodiment of the application, by providing the first touch electrode structure 30 and the second touch electrode structure 40, the first touch electrode 11 and the second touch electrode structure 40 at the edge of the display area 100 in the touch display panel form a capacitance structure, and/or the second touch electrode 21 and the first touch electrode structure 30 at the edge of the display area form a capacitance structure, so that the capacitance structure can generate a corresponding touch signal according to the touch condition of a user, thereby improving the touch performance at the edge of the display area 100 of the touch display panel, and ensuring the use experience of the user.
Moreover, in the touch display panel provided by the embodiment of the application, because the capacitive structure exists at the edge of the display area 100 of the touch display panel, compared with the existing touch display panel, the capacitive signal at the edge of the display area 100 can be prevented from being compensated through an algorithm, so that the increase of power consumption can be avoided, the cruising ability of the display device to which the touch display panel provided by the embodiment of the application is applied can be ensured, and the use experience of a user can be ensured.
It should be noted that, in the embodiment of the present application, for convenience of visually displaying the display area 100, a dashed box is shown in fig. 1, and a dashed line does not exist in an actual product.
In one embodiment of the present application, in a direction perpendicular to the touch display panel, the orthographic projection of the display area 100 is quadrilateral in shape; the first touch electrode structures 30 are located near two opposite sides of the display area 100, and the first touch electrode structures 30 extend along a first direction; the second touch electrode structures 40 are located at the other two opposite sides of the display area 100, and the second touch electrode structures 40 extend along the second direction; the first direction is perpendicular to the second direction.
In the embodiment of the present application, as shown in fig. 1, the display area 100 is rectangular, and the touch electrode array located in the display area 100 includes a plurality of first touch electrode strings 10 extending along a first direction and a plurality of second touch electrode strings 20 extending along a second direction. In the embodiment of the present application, the first direction is perpendicular to the second direction, and optionally, F denotes the first direction and S denotes the second direction as shown in fig. 1.
In a direction parallel to the first direction, only the first touch electrodes 11 of the first touch electrode string 10 are present at two opposite first edges in the display area 100, and the second touch electrode structures 40 are disposed at the side edges of the non-display area 200 close to the first edge of the display area 100, and the second touch electrode structures 40 correspond to all the first touch electrodes 11 located at the first edge of the display area 100, so that the second touch electrode structures 40 and the first touch electrodes 11 form a capacitive structure, and the capacitive structure can generate corresponding touch signals according to the touch condition of a user, thereby improving the touch performance of the first edge of the display area 100 of the touch display panel.
In the direction parallel to the second direction, only the second touch electrodes 21 of the second touch electrode string 20 are located at two opposite second edges of the display area 100, and the first touch electrode structures 30 are disposed at the side edges of the non-display area 200 close to the second edge of the display area 100, and the first touch electrode structures 30 correspond to all the second touch electrodes 21 located at the second edge of the display area 100, so that the first touch electrode structures 30 and the second touch electrodes 21 form a capacitance structure, and the capacitance structure can generate corresponding touch signals according to the touch condition of a user, thereby improving the touch performance of the second edge of the display area 100 of the touch display panel.
Optionally, in this embodiment of the application, the second touch electrode structure 40 extends along a direction parallel to the second direction, so that distances between the second touch electrode structure 40 and each of the first touch electrodes 11 in the first direction are equal, and a consistency of capacitance structures at each position of the first edge can be ensured, thereby ensuring a consistency of touch performance of the first edge of the touch display panel display area 100, and ensuring user experience. Similarly, the first touch electrode structure 30 extends along a direction parallel to the first direction, so that the distance between the first touch electrode structure 30 and each second touch electrode 21 in the second direction is equal, the consistency of the capacitance structures at each second edge can be ensured, and the consistency of the touch performance of the first edge of the touch display panel display area 100 can be ensured.
It should be noted that the shape of the orthographic projection of the display area 100 of the touch display panel is not limited to a quadrilateral in the embodiment of the present application, and the shape of the orthographic projection of the display area 100 may also be other shapes such as a circle and a triangle, and those skilled in the art can design the shape of the orthographic projection of the display area 100 according to the actual application scene of the touch display panel.
In one embodiment of the present application, the touch layer further includes a first routing layer and a second routing layer; one wiring layer of the first wiring layer and the second wiring layer is arranged on the same layer with the touch electrode array, and the other wiring layer is positioned on one side of the one wiring layer; the first routing layer includes a plurality of first touch traces 51, and the first touch traces 51 are electrically connected to the first touch electrode string 10 and the first touch electrode structure 30, respectively; the second routing layer includes a plurality of second touch traces 61, and the second touch traces 61 are electrically connected to the second touch electrode strings 20 and the second touch electrode structures 40, respectively; the orthographic projection of the first touch wire 51 on the substrate of the touch display panel and the orthographic projection of the second touch wire 61 on the substrate are at least partially overlapped.
In the embodiment of the present application, the touch layer further includes a first routing layer located in the non-display area 200 and a second routing layer located in the non-display area 200, the first routing layer and the touch electrode array are disposed on the same layer, and the second routing layer is located on one side of the first routing layer. The first touch trace 51 is electrically connected to the first touch electrode string 10 and the first touch electrode structure 30 respectively; the second touch trace 61 is electrically connected to the second touch electrode string 20 and the second touch electrode structure 40, respectively.
Optionally, in this embodiment of the application, the first touch electrode strings 10 are touch driving electrodes, as shown in fig. 1, two ends of each first touch electrode string 10 are electrically connected to one first touch trace 51, and each first touch electrode structure 30 is electrically connected to one first touch trace 51, that is, the number of the first touch traces 51 is matched with the sum of twice the number of the first touch electrode strings 10 and the number of the first touch electrode structures 30. As shown in fig. 1, the touch display panel is provided with four first touch electrode strings 10, two first touch electrode structures 30 and ten first touch traces 51.
It should be noted that, since the orthographic projection of the first touch trace 51 on the substrate of the touch display panel and the orthographic projection of the second touch trace 61 on the substrate at least partially overlap, the second touch trace 61 is not shown in fig. 1.
Optionally, in an embodiment of the present application, the second routing layer and the touch electrode array are disposed on the same layer, and the first routing layer is located on one side of the second routing layer. The second touch electrode strings 20 are touch sensing electrodes, as shown in fig. 2, each second touch electrode string 20 is electrically connected to one second touch trace 61, and each second touch electrode structure 40 is electrically connected to one second touch trace 61, that is, the number of the second touch traces 61 is matched with the sum of the number of the second touch electrode strings 20 and the number of the second touch electrode structures 40. As shown in fig. 2, the touch display panel is provided with four second touch electrode strings 20, two second touch electrode structures 40 and six second touch traces 61. It should be noted that, in order to facilitate the display of the second touch trace 61, in the embodiment of the present application, the first touch trace 51 in fig. 1 is peeled off to obtain the structure shown in fig. 2.
In the embodiment of the present application, the first routing layer and the second routing layer located on different layers are provided, so that the first touch trace 51 or the second touch trace 61 is separately provided in the routing layer provided on the same layer as the touch electrode array, that is, the touch trace in the same routing layer is a single trace structure, and only the first touch trace 51 or the second touch trace 61 exists, so that the number of touch traces in the same routing layer can be reduced. Compared with a double-routing scheme in which the first touch routing 51 and the second touch routing 61 are arranged on the same layer in the prior art, the touch display panel provided by the embodiment of the application can reduce the size of the first routing layer and the second routing layer in the direction parallel to the touch display panel, so that the narrow frame design of the touch display panel can be facilitated.
Moreover, because only the first touch trace 51 or the second touch trace 61 exists in the same routing layer, the size of the first touch trace 51 and/or the second touch trace 61 in the direction parallel to the touch display panel can be properly increased, that is, the width of the first touch trace 51 and/or the second touch trace 61 is increased, so that the resistance of the first touch trace 51 and/or the second touch trace 61 can be reduced, the touch performance of the edge of the touch display panel display area 100 can be improved, and the use experience of a user can be guaranteed.
In an embodiment of the present application, in a case where the first wiring layer and the touch electrode array are disposed on the same layer, at least a portion of the first touch wiring 51 surrounds a first touch electrode structure 30 and a portion of the second touch electrode structure 40, at least a portion of the second touch wiring 62 surrounds an orthographic projection of a second touch electrode structure 40 on the second wiring layer, and a portion of the first touch electrode structure 30 on the orthographic projection on the second wiring layer.
In the embodiment of the present application, as shown in fig. 1, the first routing layer and the touch electrode array are disposed on the same layer, and the second routing layer is located on one side of the first routing layer. At least a portion of the first touch trace 51 surrounds a first touch electrode structure 30 and a portion of the second touch electrode structure 40, at least a portion of the second touch trace 62 surrounds an orthogonal projection of the second touch electrode structure 40 on the second trace layer and an orthogonal projection of a portion of the first touch electrode structure 30 on the second trace layer.
In one embodiment of the present application, in a direction perpendicular to the touch display panel, the orthographic projection of the display area 100 is quadrilateral in shape; the first touch electrode structure 30 extends along a first direction and is located near two opposite sides of the display area 100; the second touch electrode structure 40 extends along a second direction perpendicular to the first direction and is located at the other two opposite side edges of the display area 100; a part of the first touch trace 51 surrounds a first touch electrode structure 30 and a part of the second touch electrode structure 40, and the remaining first touch trace 51 surrounds another first touch electrode structure 30 and a part of the second touch electrode structure 40.
In the embodiment of the present application, as shown in fig. 1, four first touch electrode strings 10, four second touch electrode strings 20, two first touch electrode structures 30, two second touch electrode structures 40, and ten first touch traces 51 are provided. Only four first touch electrodes 11 of the first touch electrode string 10 exist at two opposite first edges in the display area 100, and one second touch electrode structure 40 is arranged at the side edge of the non-display area 200 close to each first edge of the display area 100; only four second touch electrodes 21 of the second touch electrode string 20 are located at two opposite second edges of the display area 100, and one first touch electrode structure 30 is disposed at a side edge of the non-display area 200 close to each second edge of the display area 100.
Specifically, two first touch traces 51 are disposed on the periphery of each first touch electrode structure 30, the portion of the first touch trace 51 surrounds one first touch electrode structure 30 and a portion of the second touch electrode structure 40, one end of each first touch trace 51 is electrically connected to one first touch electrode string 10, and the other end of each first touch electrode string 10 is electrically connected to one first touch trace 51; each first touch electrode structure 30 is electrically connected to one first touch trace 51. All the first touch traces 51 extend to an interface area (not shown) located in the non-display area 200.
In the embodiment of the present application, as shown in fig. 2, the second routing layer and the touch electrode array are disposed on the same layer, the first routing layer is located on one side of the second routing layer, and at least a portion of the second touch routing 61 surrounds a first touch electrode structure 30 and a portion of the second touch electrode structure 40.
In an embodiment of the present application, in a case where the second routing layer and the touch electrode array are disposed on the same layer, at least a portion of the second touch routing 61 surrounds a second touch electrode structure 40 and a portion of the first touch electrode structure 30, at least a portion of the first touch routing 51 surrounds an orthographic projection of the first touch electrode structure 30 on the first routing layer, and a portion of the second touch electrode structure 40 on the orthographic projection on the first routing layer.
In the embodiment of the present application, in the direction perpendicular to the touch display panel, the first touch traces 51 or the second touch traces 61 with the same number are disposed on both sides of the display area 100, so that the size of the first routing layer and the second routing layer in the direction parallel to the touch display panel can be reduced.
Optionally, in this embodiment of the application, the number of the first touch traces 51 and the second touch traces 61 is 64, the line width of the first touch trace 51 is 10 μm (micrometer), and the minimum distance between two adjacent first touch traces 51 is 5 μm. Therefore, compared with the dual-routing scheme in which the first touch trace 51 and the second touch trace 61 are disposed on the same layer in the prior art, in the touch display panel provided in the embodiment of the present application, the width of the first touch trace 51 can be reduced by 160 μm, so that the size of the first routing layer and the second routing layer in the direction parallel to the touch display panel can be reduced, which is beneficial to the narrow frame design of the touch display panel.
In an embodiment of the present application, the first routing layer further includes a first bridging trace 52, the first bridging trace 52 is located in the non-display area 200 and is used for connecting the second touch electrode string 20 and the second touch trace 61, and in a direction perpendicular to the touch display panel, an orthogonal projection of the first bridging trace 52 at least partially overlaps an orthogonal projection of the first touch electrode structure 30; or, the second routing layer further includes a second bridging routing 62, the second bridging routing 62 is located in the non-display area 200 and is used for connecting the first touch electrode string 10 and the first touch routing 51, and in a direction perpendicular to the touch display panel, an orthogonal projection of the second bridging routing 62 is at least partially overlapped with an orthogonal projection of the second touch electrode structure 40.
Optionally, as shown in fig. 1, eight second bridging traces 62 are provided to electrically connect each end of the first touch electrode string 10 and the first touch trace 51. Optionally, as shown in fig. 1, four first bridging traces 52 are provided to electrically connect the second touch electrode string 20 and the second touch trace 61.
In the embodiment of the present application, the first bridging trace 52 or the second bridging trace 62 is disposed, so that different layer arrangements of the first routing layer where the first touch trace 51 is located and the second routing layer where the second touch trace 61 is located are realized.
It should be noted that, in the embodiment of the present application, as shown in fig. 1 and fig. 2, the touch layer further includes a third bridging trace 70, and the third bridging trace 70 is used to electrically connect the adjacent first touch electrodes 11 in the first touch electrode string 10, or to electrically connect the adjacent second touch electrodes 21 in the second touch electrode string 20.
In one embodiment of the present application, an insulating layer is disposed between the first touch trace 51 and the second touch trace 61 in a direction perpendicular to the touch display panel; the insulating layer is made of one or a combination of an inorganic insulating material and an organic insulating material.
Alternatively, in this embodiment, the inorganic insulating material used for the insulating layer includes SiNx (silicon nitride compound).
In one embodiment of the present application, the shapes of the first touch electrode 11 and the second touch electrode 21 include at least one of a diamond shape, a square shape, and a triangular shape in a direction perpendicular to the touch display panel.
In the embodiment of the present application, as shown in fig. 1 and fig. 2, the shapes of the first touch electrode 11 and the second touch electrode 21 include a diamond shape and a triangle shape, specifically, the shapes of the first touch electrode 11 and the second touch electrode 21 located at the edge of the display area 100 are triangle shapes, and the shapes of the first touch electrode 11 and the second touch electrode 21 located at other areas of the display area 100 are diamond shapes.
Those skilled in the art will understand that the shapes of the first touch electrode 11 and the second touch electrode 21 can be specifically set by those skilled in the art according to actual requirements, for example, the shapes of the first touch electrode 11 and the second touch electrode 21 at the edge of the display area 100 can also be polygons or a combination of straight line segments and curved line segments.
Based on the same inventive concept, an embodiment of the present application provides a display device, including: the touch display panel provided by the first aspect is provided.
The display device provided in the embodiment of the present application has the same inventive concept and the same advantageous effects as those of the previous embodiments, and the content of the touch display panel in the display device, which is not shown in detail in the previous embodiments, can refer to the previous embodiments, and is not described herein again.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
1. in the touch display panel provided in the embodiment of the present application, the touch layer includes a touch electrode array located in the display area 100 and a touch electrode structure located in the non-display area 200 at the periphery of the display area 100, and due to the first touch electrode structures 30 of the touch electrode structure, the second touch electrodes 21 located at one edge of the touch electrode array are located close to each second touch electrode string 20, and/or the second touch electrode structures 40 of the touch electrode structure are located close to the first touch electrodes 11 located at the other edge of the touch electrode array of each first touch electrode string 10. Therefore, the first touch electrode 11 and the second touch electrode structure 40 at the edge of the display area 100 in the touch display panel form a capacitance structure, and/or the second touch electrode 21 and the first touch electrode structure 30 at the edge of the display area form a capacitance structure, so that the touch performance at the edge of the display area 100 of the touch display panel can be improved, and the use experience of a user can be guaranteed.
2. In the touch display panel provided by the embodiment of the application, because the capacitive structure exists at the edge of the display area 100 of the touch display panel, compared with the existing touch display panel, the capacitive signal at the edge of the display area 100 can be prevented from being compensated through an algorithm, so that the increase of power consumption can be avoided, the cruising ability of the display device to which the touch display panel provided by the embodiment of the application is applied can be ensured, and the use experience of a user can be ensured.
3. In the embodiment of the present application, the first routing layer and the second routing layer located on different layers are provided, so that the first touch trace 51 or the second touch trace 61 is separately provided in the routing layer provided on the same layer as the touch electrode array, that is, the touch trace in the same routing layer is a single trace structure, and only the first touch trace 51 or the second touch trace 61 exists, so that the number of touch traces in the same routing layer can be reduced. Compared with a double-routing scheme in which the first touch routing 51 and the second touch routing 61 are arranged on the same layer in the prior art, the touch display panel provided by the embodiment of the application can reduce the size of the first routing layer and the second routing layer in the direction parallel to the touch display panel, so that the narrow frame design of the touch display panel can be facilitated.
Moreover, because only the first touch trace 51 or the second touch trace 61 exists in the same routing layer, the width of the first touch trace 51 and/or the second touch trace 61 can be properly increased, so that the resistance of the first touch trace 51 and/or the second touch trace 61 can be reduced, the touch performance of the edge of the touch display panel display area 100 can be improved, and the use experience of a user can be guaranteed.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A touch display panel, comprising: a touch layer;
the touch layer comprises a touch electrode array positioned in a display area and a touch electrode structure positioned in a non-display area at the periphery of the display area;
the touch electrode array comprises a plurality of first touch electrode strings extending along a first direction and a plurality of second touch electrode strings extending along a second direction, and the touch electrode structure comprises at least one of a first touch electrode structure and a second touch electrode structure;
the first touch electrode structure is close to the second touch electrode positioned at one edge of the touch electrode array of each second touch electrode string, and the first touch electrode structure and the second touch electrode are insulated from each other; and/or the second touch electrode structure is close to the first touch electrode positioned at the other edge of the touch electrode array of each first touch electrode string, and the second touch electrode structure and the first touch electrode are insulated from each other.
2. The touch display panel according to claim 1, wherein in a direction perpendicular to the touch display panel, a shape of an orthographic projection of the display area is a quadrangle;
the first touch electrode structures are positioned close to two opposite side edges of the display area and extend along a first direction; the second touch electrode structures are positioned at the other two opposite side edges of the display area and extend along a second direction; the first direction is perpendicular to the second direction.
3. The touch display panel of claim 1, wherein the touch layer further comprises a first routing layer and a second routing layer; one wiring layer of the first wiring layer and the second wiring layer is arranged on the same layer as the touch electrode array, and the other wiring layer is positioned on one side of the one wiring layer;
the first wiring layer comprises a plurality of first touch-control wirings, and the first touch-control wirings are respectively electrically connected with the first touch-control electrode strings and the first touch-control electrode structures;
the second routing layer comprises a plurality of second touch control routing lines, and the second touch control routing lines are respectively electrically connected with the second touch control electrode strings and the second touch control electrode structures;
the orthographic projection of the first touch-control routing on the substrate of the touch-control display panel is at least partially overlapped with the orthographic projection of the second touch-control routing on the substrate.
4. The touch display panel according to claim 3, wherein when the first routing layer and the touch electrode array are disposed on the same layer, at least a portion of the first touch trace surrounds a first touch electrode structure and a portion of the second touch electrode structure, at least a portion of the second touch trace surrounds an orthographic projection of the second touch electrode structure on the second routing layer and a portion of the orthographic projection of the first touch electrode structure on the second routing layer.
5. The touch display panel according to claim 4, wherein in a direction perpendicular to the touch display panel, a shape of an orthographic projection of the display area is a quadrangle; the first touch electrode structure extends along a first direction and is positioned close to two opposite side edges of the display area; the second touch electrode structure extends along a second direction perpendicular to the first direction and is positioned at the other two opposite side edges of the display area;
part of the first touch-control routing surrounds one first touch-control electrode structure and part of the second touch-control electrode structure, and the rest of the first touch-control routing surrounds the other first touch-control electrode structure and part of the second touch-control electrode structure.
6. The touch display panel according to claim 3, wherein in a case that the second routing layer and the touch electrode array are disposed on the same layer, at least a portion of the second touch trace surrounds a second touch electrode structure and a portion of the first touch electrode structure, at least a portion of the first touch trace surrounds an orthographic projection of the first touch electrode structure on the first routing layer and a portion of the second touch electrode structure on the first routing layer.
7. The touch display panel according to claim 3, wherein the first routing layer further includes a first bridging trace, the first bridging trace is located in the non-display area and is used to connect the second touch electrode string and the second touch trace, and in a direction perpendicular to the touch display panel, an orthogonal projection of the first bridging trace at least partially overlaps an orthogonal projection of the first touch electrode structure; alternatively, the first and second electrodes may be,
the second routing layer further comprises a second bridging routing, the second bridging routing is located in the non-display area and used for connecting the first touch electrode string and the first touch routing, and in a direction perpendicular to the touch display panel, an orthographic projection of the second bridging routing is at least partially overlapped with an orthographic projection of the second touch electrode structure.
8. The touch display panel according to claim 3, wherein an insulating layer is disposed between the first touch traces and the second touch traces in a direction perpendicular to the touch display panel;
the manufacturing material of the insulating layer comprises one or a combination of an inorganic insulating material and an organic insulating material.
9. The touch display panel according to claim 1, wherein the shape of the first touch electrode and the second touch electrode in a direction perpendicular to the touch display panel includes at least one of a diamond shape, a square shape, and a triangular shape.
10. A display device, comprising: the touch display panel of any one of claims 1-9.
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| CN112965638B (en) | 2024-03-15 |
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