CN115617201A - Touch display panel and touch display device - Google Patents

Touch display panel and touch display device Download PDF

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Publication number
CN115617201A
CN115617201A CN202211310484.0A CN202211310484A CN115617201A CN 115617201 A CN115617201 A CN 115617201A CN 202211310484 A CN202211310484 A CN 202211310484A CN 115617201 A CN115617201 A CN 115617201A
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China
Prior art keywords
touch
display panel
touch display
mark
grid
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Pending
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CN202211310484.0A
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Chinese (zh)
Inventor
贺兴龙
何坤
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Kunshan Govisionox Optoelectronics Co Ltd
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Kunshan Govisionox Optoelectronics Co Ltd
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Priority to CN202211310484.0A priority Critical patent/CN115617201A/en
Publication of CN115617201A publication Critical patent/CN115617201A/en
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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
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

The application discloses a touch display panel and a touch display device. Touch-control display panel, have the display area, touch-control display panel includes: the touch control electrodes are positioned in the display area, and the touch control electrodes are arranged in rows and columns; and the mark structures are positioned in the display area, and orthographic projections of the mark structures corresponding to the touch electrodes at different positions on the light-emitting surface of the touch display panel are different in shape. According to the touch display panel and the touch display device provided by the embodiment of the application, the logic channel to which the touch electrode belongs in the current visual field can be accurately judged, the problem channel can be rapidly positioned, the resolution difficulty is reduced, and the resolution speed is increased.

Description

Touch display panel and touch display device
Technical Field
The application relates to the technical field of touch display, in particular to a touch display panel and a touch display device.
Background
In the bad analysis process of the touch display panel, bad circuits in the display area can be searched under a microscope, due to the fact that the number of channels in the touch display panel is large, the consistency of graphs in the display area is high, the logic channel to which the circuit seen at present belongs cannot be judged under the microscope, the difficulty is increased for bad analysis, the problem channel cannot be located quickly, and the analysis speed is affected.
Disclosure of Invention
The embodiment of the application provides a touch display panel and a touch display device, which can accurately judge a logic channel to which a touch electrode in a current view belongs, help to quickly locate a problem channel, reduce analysis difficulty and improve analysis speed.
In a first aspect, an embodiment of the present application provides a touch display panel, which has a display area, and includes: the touch control electrodes are positioned in the display area, and the touch control electrodes are arranged in rows and columns; and the mark structures are positioned in the display area, and orthographic projections of the mark structures corresponding to the touch electrodes at different positions on the light-emitting surface of the touch display panel are different in shape.
In a possible implementation manner of the first aspect, the touch electrode includes a plurality of grid wires, the touch display panel further includes a plurality of light emitting units, the grid wires and the orthographic projections of the light emitting units on the light emitting surface of the touch display panel are not overlapped, and the mark structures and the orthographic projections of the light emitting units on the light emitting surface of the touch display panel are not overlapped;
preferably, at least part of the mark structures and the grid wires are overlapped in the orthographic projection on the light-emitting surface of the touch display panel;
preferably, the orthographic projection of at least part of the mark structure on the light-emitting surface of the touch display panel is surrounded by the orthographic projection of the grid wiring on the light-emitting surface of the touch display panel.
In a possible implementation manner of the first aspect, the touch electrode includes a first touch electrode and a second touch electrode that are stacked, and at least a portion of the mark structure is a via structure that connects the first touch electrode and the second touch electrode.
In a possible implementation manner of the first aspect, the mark structures include first mark structures, orthogonal projections of the first mark structures corresponding to the touch electrodes in the same row on the light-emitting surface of the touch display panel have the same shape, and orthogonal projections of the first mark structures corresponding to the touch electrodes in different rows on the light-emitting surface of the touch display panel have different shapes.
In a possible implementation manner of the first aspect, the touch electrode includes a plurality of grid lines, and each grid line of each touch electrode is provided with at least one first mark structure correspondingly;
preferably, a plurality of first mark structures correspondingly arranged on each grid line in each touch electrode are uniformly distributed.
In a possible implementation manner of the first aspect, the mark structures include second mark structures, orthogonal projections of the second mark structures corresponding to the touch electrodes in the same row on the light-emitting surface of the touch display panel have the same shape, and orthogonal projections of the second mark structures corresponding to the touch electrodes in different rows on the light-emitting surface of the touch display panel have different shapes.
In a possible implementation manner of the first aspect, the touch electrode includes a plurality of grid lines, and each grid line of each touch electrode is provided with at least one second mark structure correspondingly;
preferably, a plurality of second mark structures correspondingly arranged on each grid line in each touch electrode are uniformly distributed.
In a possible implementation manner of the first aspect, the touch electrode includes a plurality of grid traces, the mark structure includes a third mark structure, at least some grid traces in the same touch electrode are provided with the third mark structure correspondingly, and orthographic projection shapes of the third mark structures on the light-emitting surface of the touch display panel, which are provided by the grid traces at different positions in the same touch electrode correspondingly, are different, and/or the number of the third mark structures provided by the grid traces at different positions in the same touch electrode correspondingly is different.
In a possible implementation manner of the first aspect, at least one grid wire without a third mark structure is spaced between two grid wires correspondingly provided with the third mark structure in the same touch electrode;
preferably, the third mark structure includes a first sub mark structure and a second sub mark structure, and at least one of the first sub mark structure and the second sub mark structure, which are correspondingly arranged on grid lines at different positions in the same touch electrode, has different numbers;
preferably, the orthographic projections of the first sub-mark structures and the grid wires on the light-emitting surface of the touch display panel are overlapped;
preferably, the second sub-mark structure and the grid routing are arranged on the same layer, and the second sub-mark structure is arranged between two adjacent touch electrodes.
Based on the same inventive concept, in a second aspect, an embodiment of the present application provides a touch display device, including the touch display panel as in any one of the embodiments of the first aspect.
According to the touch display panel and the touch display device provided by the embodiment of the application, because the mark structures corresponding to the touch electrodes with different positions are located in the display area, the orthographic projection shapes of the mark structures on the light-emitting surface of the touch display panel are different, when a certain area is inspected through a microscope, the positions of the corresponding touch electrodes can be accurately determined according to the shapes of the mark structures in the visual field, so that the logic channels to which the touch electrodes in the current visual field belong can be accurately judged, the problem channels can be rapidly positioned, the resolution difficulty is reduced, and the resolution speed is increased.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, when taken in conjunction with the accompanying drawings, in which like or similar reference characters designate like or similar features, and which are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure;
FIG. 2 shows a partial enlarged view of an example of the area Q1 in FIG. 1;
fig. 3 is a schematic view illustrating another structure of a touch display panel according to an embodiment of the present disclosure;
FIG. 4 shows a partial enlarged view of an example of the region Q2 in FIG. 3;
fig. 5 is a schematic cross-sectional view illustrating a touch display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a touch display device according to an embodiment of the present disclosure.
Detailed Description
Features of various aspects and exemplary embodiments of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" comprises 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
It will be understood that when a layer or region is referred to as being "on" or "over" another layer or region in describing the structure of the element, it can be directly on the other layer or region or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
It should be understood that the term "and/or" as used herein is merely a relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments of the present application, the term "connected" may mean that two components are directly connected, or may mean that two components are connected via one or more other components.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover the modifications and variations of this application provided they come within the scope of the corresponding claims (the claimed subject matter) and their equivalents. It should be noted that the embodiments provided in the embodiments of the present application can be combined with each other without contradiction.
Before explaining the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically explains the problems existing in the related art:
in the process of analyzing the defects of the touch display panel, a defective circuit in the display area can be found under a microscope, then a logic channel where the defective position is located, for example, a row and column position where the defective touch electrode is located, is measured through test software, and then a specific defective form, for example, a foreign matter, a short circuit, an open circuit and the like, is determined by corresponding to the logic channel.
In the related art, position marks are made in a non-display area at the periphery of a display area, however, because the visual range of a microscope is limited, when a certain area is examined, the visual fields of other areas are inevitably lost, and when the microscope is observed in the display area, the logic channel where the specific observed position is located cannot be confirmed. In addition, the touch electrode may be patterned, for example, the touch electrode may include a plurality of grid traces to form a grid-shaped touch electrode, so that the consistency of the graphics in the display area is high, and when a microscope observes in the display area, it is more difficult to confirm the logic channel where the specific viewing position is located.
In order to solve the above problems, embodiments of the present invention provide a touch display panel and a touch display device, and the following describes embodiments of the touch display panel and the touch display device with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a touch display panel according to an embodiment of the present disclosure. As shown in fig. 1, the touch display panel 100 may include a display area AA. In some examples, the touch display panel 100 may further include a non-display area NA, and the non-display area NA may at least partially surround the display area AA.
A plurality of touch electrodes 10 arranged in rows and columns may be disposed in the display area AA of the touch display panel 100. Fig. 1 illustrates 5 rows and 3 columns of touch electrodes 10, which is not intended to limit the present application.
Fig. 2 shows a partially enlarged view of an example of the region Q1 in fig. 1. In some examples, as shown in fig. 2, the touch electrode 10 of the touch display panel 100 may include a plurality of grid traces 11. The grid traces 11 included in the same touch electrode 10 may be connected to each other, so that the touch electrode 10 has a grid structure as a whole. It can be understood that, for the self-capacitance structure, there may be no connection between the grid traces 11 of different touch electrodes 10. Of course, the touch electrode 10 may also be a block structure. In addition, the touch display panel may further include a touch lead (not shown) connected between the touch electrode 10 and the touch chip, and the touch drive signal and/or the touch identification signal may be transmitted through the touch lead.
Referring to fig. 2, the touch display panel 100 may further include a mark structure 20, and the mark structure 20 is located in the display area AA. Each touch electrode 10 may be correspondingly provided with a mark structure 20, and orthographic projections of the mark structures 20 corresponding to the touch electrodes 10 at different positions on the light-emitting surface of the touch display panel are different in shape.
According to the touch display panel provided by the embodiment of the application, because the marking structures are located in the display area and the orthographic projection shapes of the marking structures corresponding to the touch electrodes at different positions on the light-emitting surface of the touch display panel are different, when a certain area is inspected through a microscope, the positions of the corresponding touch electrodes can be accurately determined according to the shapes of the marking structures in the field of view, so that the logic channel to which the touch electrode in the current field of view belongs can be accurately judged, the problem channel can be quickly positioned, the resolution difficulty is reduced, and the resolution speed is increased.
In some alternative embodiments, as shown in fig. 2, the mark structure 20 may include a first mark structure 21, and each touch electrode 10 may be correspondingly provided with the first mark structure 21. The orthographic projection shapes of the first mark structures 21 corresponding to the touch electrodes 10 in the same row on the light-emitting surface of the touch display panel can be the same, and the orthographic projection shapes of the first mark structures 21 corresponding to the touch electrodes 10 in different rows on the light-emitting surface of the touch display panel can be different. Therefore, when a certain area is inspected through the microscope, the row position of the corresponding touch electrode can be quickly and accurately determined according to the shape of the first mark structure in the visual field.
As an example, as shown in fig. 1, the orthographic projection shape of the first mark structure 21 corresponding to the touch electrode 10 in the row 1 on the light-emitting surface of the touch display panel may be a rectangle, the orthographic projection shape of the first mark structure 21 corresponding to the touch electrode 10 in the row 2 on the light-emitting surface of the touch display panel may be a triangle, the orthographic projection shape of the first mark structure 21 corresponding to the touch electrode 10 in the row 3 on the light-emitting surface of the touch display panel may be a diamond, the orthographic projection shape of the first mark structure 21 corresponding to the touch electrode 10 in the row 4 on the light-emitting surface of the touch display panel may be a circle, and the orthographic projection shape of the first mark structure 21 corresponding to the touch electrode 10 in the row 5 on the light-emitting surface of the touch display panel may be a cross.
In order to quickly and accurately determine the row position of the grid trace 11 in the field of view during the inspection process, in some alternative embodiments, each grid trace 11 in each touch electrode 10 is provided with at least one first mark structure 21. It can be understood that the shape of the orthographic projection of the first mark structure 21 corresponding to each grid trace 11 in the same touch electrode 10 on the light emitting surface of the touch display panel may be the same.
For example, in the case that each grid trace 11 in each touch electrode 10 is provided with a plurality of first mark structures 21 correspondingly, the plurality of first mark structures 21 correspondingly provided for each grid trace 11 may be uniformly distributed.
In some alternative embodiments, as shown in fig. 2, the mark structure 20 may include a second mark structure 22, and each touch electrode 10 may be provided with the second mark structure 22 correspondingly. The shapes of the orthographic projections of the second mark structures 22 corresponding to the touch electrodes 10 in the same row on the light-emitting surface of the touch display panel may be the same, and the shapes of the orthographic projections of the second mark structures 22 corresponding to the touch electrodes 10 in different rows on the light-emitting surface of the touch display panel are different. Therefore, when a certain area is inspected through the microscope, the column position of the corresponding touch electrode can be quickly and accurately determined according to the shape of the second mark structure in the visual field.
As an example, as shown in fig. 1, an orthographic projection shape of the second mark structure 22 corresponding to the touch electrode 10 in the column a on the light-emitting surface of the touch display panel may be a "V" shape, an orthographic projection shape of the second mark structure 22 corresponding to the touch electrode 10 in the column B on the light-emitting surface of the touch display panel may be a pentagon shape, and an orthographic projection shape of the second mark structure 22 corresponding to the touch electrode 10 in the column C on the light-emitting surface of the touch display panel may be a star shape. As another example, as shown in fig. 3, the orthographic projection shape of the second mark structure 22 corresponding to the touch electrode 10 in the a-th column on the light-emitting surface of the touch display panel may be a rectangle, the orthographic projection shape of the second mark structure 22 corresponding to the touch electrode 10 in the B-th column on the light-emitting surface of the touch display panel may be a circle, and the orthographic projection shape of the second mark structure 22 corresponding to the touch electrode 10 in the C-th column on the light-emitting surface of the touch display panel may be a star.
Similarly, in order to quickly and accurately determine the column position of the grid trace 11 in the field of view during the inspection process, in some optional embodiments, at least one second mark structure 22 is correspondingly disposed on each grid trace 11 in each touch electrode 10. It can be understood that the shape of the orthographic projection of the second mark structure 22 corresponding to each grid trace 11 in the same touch electrode 10 on the light emitting surface of the touch display panel can be the same.
For example, in a case that each grid trace 11 in each touch electrode 10 is provided with a plurality of second mark structures 22 correspondingly, the plurality of second mark structures 22 correspondingly provided for each grid trace 11 may be uniformly distributed. Of course, the plurality of second mark structures 22 correspondingly disposed on the grid trace 11 may also be distributed in a concentrated manner.
In order to accurately distinguish the first mark structure 21 and the second mark structure 22 corresponding to the same touch electrode 10, as an example, as shown in fig. 1, orthographic projections of the first mark structure 21 and the second mark structure 22 on the light-emitting surface of the touch display panel may have different shapes.
As another example, the shapes of the orthographic projections of the first mark structures 21 corresponding to a part of the rows and the second mark structures 22 corresponding to a part of the columns on the light-emitting surface of the touch display panel may be the same, and the relative distribution positions of the two on the same touch electrode 10 are different. For example, as shown in fig. 3, fig. 3 is different from fig. 1 in that the orthographic projection shapes of the second mark structure 22 corresponding to the touch electrode 10 in the a-th column and the first mark structure 21 corresponding to the touch electrode 10 in the 1-st row on the light-emitting surface of the touch display panel are the same, and the orthographic projection shapes of the second mark structure 22 corresponding to the touch electrode 10 in the B-th column and the first mark structure 21 corresponding to the touch electrode 10 in the 4-th row on the light-emitting surface of the touch display panel are the same. Taking the touch electrode 10 in the row 1 and the column a as an example, the orthographic projections of the corresponding first mark structure 21 and the second mark structure 22 on the light-emitting surface of the touch display panel have the same shape, and the relative distribution positions of the two mark structures may be different. Taking the touch display panel as a mutual capacitance structure as an example, different touch electrodes may have no connection relationship therebetween, and therefore the grid traces of different touch electrodes may be disconnected from each other, as shown in fig. 4, a fracture area 111 may exist between the grid traces 11 of different touch electrodes, it can be understood that the grid traces 11 of different touch electrodes are disconnected from each other in the fracture area 111, and under the condition that the orthographic projections of the first marking structure 21 and the second marking structure 22 corresponding to the touch electrode 10 on the light-emitting surface of the touch display panel have the same shape, one of the first marking structure 21 and the second marking structure 22 may be disposed close to the fracture area 111, and the other may be disposed far from the fracture area 111. For example, the second marking structure 22 is disposed proximate to the fracture zone 111 and the first marking structure 21 is disposed distal to the fracture zone 111.
In order to determine the logic channel to which the grid trace 11 in the field of view belongs quickly and accurately in the inspection process, for example, to determine that the grid trace 11 in the field of view is the second grid trace in the touch electrode 10, in some optional embodiments, as shown in fig. 2 or fig. 4, the mark structure 20 may further include a third mark structure 23, at least some grid traces 11 in the same touch electrode 10 may be provided with the third mark structure 23 correspondingly, and orthographic projections of the third mark structures 23 on the light-emitting surface of the touch display panel, of the third mark structures 23 correspondingly provided on the grid traces 11 at different positions in the same touch electrode 10, and/or the numbers of the third mark structures 23 correspondingly provided on the grid traces 11 at different positions in the same touch electrode 10 are different. Therefore, when a certain area is inspected through a microscope, the logic channel to which the corresponding grid routing belongs can be quickly and accurately determined according to the shape and/or the number of the third mark structures in the visual field.
Fig. 2 and 4 show seven grid traces 11 in the touch electrode 10, which are 11 (i) to 11 (i + 6) respectively, and indicate that the ith grid trace 11 (i), the (i + 2) th grid trace 11 (i + 2), and the (i + 6) th grid trace 11 (i + 6) are correspondingly provided with a third mark structure 23, and the (i + 1) th grid trace 11 (i + 1), the (i + 3) th grid trace 11 (i + 3), the (i + 4) th grid trace 11 (i + 4), and the (i + 5) th grid trace 11 (i + 5) are not provided with the third mark structure 23. In the checking process, the logic channel to which the grid wire without the third mark structure belongs can be determined by the logic channel to which the grid wire with the third mark structure adjacent thereto belongs.
As an example, one of the first and second mark structures 21 and 22 may be multiplexed as the first sub-mark structure 231, and the second mark structure 22 may be disposed adjacent to the second sub-mark structure 232 as exemplified by the multiplexing of the second mark structure 22 as the first sub-mark structure 231 in fig. 2 and 4.
In some optional embodiments, as shown in fig. 2 or fig. 4, at least one grid trace 11 without the third mark structure 23 may be spaced between two grid traces 11 corresponding to the third mark structure 23 in the same touch electrode. When a certain area is inspected through a microscope, a plurality of grid routing lines can be observed in the visual field range, the number of the third marking structures can be reduced through the interval arrangement mode, and the accuracy of judging the logic channel to which the grid routing line belongs is not influenced.
As an example, as shown in fig. 2 or fig. 4, the third mark structure 23 may include a first sub mark structure 231 and a second sub mark structure 232, and the number of at least one of the first sub mark structure 231 and the second sub mark structure 232 correspondingly disposed on the grid traces 11 at different positions in the same touch electrode 10 is different.
For example, the ith grid routing line 11 (i) is correspondingly provided with 1 first sub-mark structure 231 and 1 second sub-mark structure 232, the (i + 2) th grid routing line 11 (i + 2) is correspondingly provided with 1 first sub-mark structure 231 and 2 second sub-mark structures 232, and the (i + 6) th grid routing line 11 (i + 6) is correspondingly provided with 2 first sub-mark structures 231 and 2 second sub-mark structures 232.
Under the condition that the number of at least one of the first sub mark structures 231 and the second sub mark structures 232 correspondingly disposed on the grid traces 11 at different positions in the same touch electrode 10 is different, the orthographic projection shapes of the first sub mark structures 231 and the second sub mark structures 232 on the light-emitting surface of the touch display panel may be the same or different, which is not limited in the present application.
For example, the orthographic projections of the first sub-mark structures 231 and the grid traces 11 on the light emitting surface of the touch display panel may overlap.
Still taking the touch display panel as a mutual capacitance structure as an example, different touch electrodes may have no connection relationship, and grid traces of different touch electrodes may be disconnected from each other. For example, the second sub-mark structure 232 is disposed on the same layer as the grid trace 11, and the second sub-mark structure 232 is between two adjacent touch electrodes 10. That is to say, the second sub mark structure 232 may be disposed between two grid traces 11 of two adjacent touch electrodes 10. It can be understood that the number of the fracture areas 111 corresponding to the grid traces 11 (i + 1), 11 (i + 3), 11 (i + 4), and 11 (i + 5) not provided with the third mark structure 23 is 1, the number of the fracture areas 111 corresponding to the i-th grid trace 11 (i) is 2, the number of the fracture areas 111 corresponding to the i + 2-th grid trace 11 (i + 2) is 3, and the number of the fracture areas 111 corresponding to the i + 6-th grid trace 11 (i + 6) is 3, so that the logic channel to which the grid trace belongs can also be determined according to the number of the first sub-mark structures 231 corresponding to the grid trace and the number of the fracture areas 111.
In some optional embodiments, as shown in fig. 2, the touch display panel may further include a plurality of light emitting units 30, the grid traces 11 and the light emitting units 30 do not overlap in the orthographic projection on the light emitting surface of the touch display panel, and the mark structures 20 and the light emitting units 30 do not overlap in the orthographic projection on the light emitting surface of the touch display panel. As such, neither the grid traces 11 nor the mark structure 20 affect the light emitting effect.
Illustratively, the Light Emitting unit may include an Organic Light Emitting Diode (OLED) Light Emitting element, but may be other types of Light Emitting elements. The touch electrode 10 and the light emitting unit 30 may be stacked, and the touch electrode 10 may be disposed on the light emitting side of the light emitting unit 30.
For example, the light emitting unit 30 may include a first light emitting unit 31, a second light emitting unit 32, and a third light emitting unit 33 emitting different color light. For example, the first light emitting unit 31 may emit red light, the second light emitting unit 32 may emit green light, and the third light emitting unit 33 may emit blue light.
As an example, at least part of the mark structure 20 and the grid traces 11 overlap in an orthographic projection on the light emitting surface of the touch display panel. For example, the orthographic projections of the first mark structure 21, the second mark structure 22, the first sub-mark structure 231 and the grid trace 11 on the light-emitting surface of the touch display panel are overlapped.
As an example, an orthogonal projection of at least a part of the mark structure 20 on the light-emitting surface of the touch display panel is surrounded by an orthogonal projection of the grid traces 11 on the light-emitting surface of the touch display panel. For example, the first mark structure 21, the second mark structure 22, the first sub-mark structure 231 and the orthographic projection of the grid trace 11 on the light-emitting surface of the touch display panel are surrounded by the orthographic projection of the grid trace 11 on the light-emitting surface of the touch display panel. This is equivalent to integrating the mark structure 20 and the grid traces into a whole, so that the mark structure 20 is in the display area and further avoids affecting the display effect.
In some alternative embodiments, as shown in fig. 5, the touch electrode 10 may include a first touch electrode 101 and a second touch electrode 102 that are stacked, an insulating layer may be disposed between the first touch electrode 101 and the second touch electrode 102, and at least a portion of the mark structure 20 may be a via structure connecting the first touch electrode 101 and the second touch electrode 102. The first touch electrode 101 and the second touch electrode 102 are connected with each other through the marking structure 20, so that the overall resistance of the touch electrodes can be reduced, the touch identification precision can be improved, and the position marking of each touch electrode can be realized only by preparing a via hole in the process, which is relatively easy to realize.
The first touch electrode 101 and the second touch electrode 102 may both include a plurality of grid traces, and the patterned shapes of the first touch electrode 101 and the second touch electrode 102 corresponding to the same touch electrode may be the same.
For example, the grid traces of the touch electrode 10 may be metal traces.
For example, the first mark structure 21, the second mark structure 22, and the first sub-mark structure 231 may be via structures connecting the first touch electrode 101 and the second touch electrode 102. The second sub-label 232 can be disposed on the same layer as the grid traces, but there is no connection relationship between the second sub-label 232 and the grid traces.
Based on the same inventive concept, the application also provides a touch display device, which comprises the touch display panel provided by the application. Referring to fig. 6, fig. 6 is a schematic structural diagram of a touch display device according to an embodiment of the present disclosure. Fig. 6 provides a touch display device 1000 including the touch display panel 100 according to any of the embodiments of the present disclosure. The embodiment of fig. 6 only takes a mobile phone as an example to describe the touch display device 1000, and it should be understood that the touch display device provided in the embodiment of the present application may be other touch display devices with a touch display function, such as wearable products, computers, televisions, and vehicle-mounted display devices, and the present application is not limited thereto. The touch display device provided in the embodiment of the present application has the beneficial effects of the touch display panel provided in the embodiment of the present application, and specific descriptions on the touch display panel in the above embodiments may be specifically referred to, and this embodiment is not described herein again.
In accordance with the embodiments of the present application as described above, these embodiments are not exhaustive and do not limit the application to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application and its various modifications as are suited to the particular use contemplated. The application is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A touch display panel having a display area, the touch display panel comprising:
the touch electrodes are positioned in the display area and are arranged in rows and columns;
and the mark structures are positioned in the display area, and orthographic projections of the mark structures corresponding to the touch electrodes at different positions on the light-emitting surface of the touch display panel are different in shape.
2. The touch display panel according to claim 1, wherein the touch electrode includes a plurality of grid traces, the touch display panel further includes a plurality of light emitting units, the grid traces and the light emitting units do not overlap in an orthographic projection on a light emitting surface of the touch display panel, and the mark structure and the light emitting units do not overlap in an orthographic projection on the light emitting surface of the touch display panel;
preferably, at least part of the mark structure and the orthographic projection of the grid wires on the light-emitting surface of the touch display panel are overlapped;
preferably, at least part of the orthographic projection of the mark structure on the light-emitting surface of the touch display panel is surrounded by the orthographic projection of the grid wiring on the light-emitting surface of the touch display panel.
3. The touch display panel according to claim 1, wherein the touch electrodes comprise a first touch electrode and a second touch electrode which are stacked, and at least part of the mark structure is a via structure connecting the first touch electrode and the second touch electrode.
4. The touch display panel according to claim 1, wherein the mark structures include first mark structures, orthogonal projections of the first mark structures corresponding to the touch electrodes in a same row on a light-emitting surface of the touch display panel have the same shape, and orthogonal projections of the first mark structures corresponding to the touch electrodes in different rows on the light-emitting surface of the touch display panel have different shapes.
5. The touch display panel according to claim 4, wherein the touch electrodes include a plurality of grid traces, and each grid trace of each touch electrode is provided with at least one first mark structure;
preferably, the plurality of first mark structures correspondingly disposed on each grid trace in each touch electrode are uniformly distributed.
6. The touch display panel according to claim 1, wherein the mark structures include second mark structures, orthogonal projections of the second mark structures corresponding to the touch electrodes in the same row on the light-emitting surface of the touch display panel have the same shape, and orthogonal projections of the second mark structures corresponding to the touch electrodes in different rows on the light-emitting surface of the touch display panel have different shapes.
7. The touch display panel according to claim 6, wherein the touch electrodes comprise a plurality of grid traces, and each grid trace of each touch electrode is provided with at least one second mark structure;
preferably, a plurality of second mark structures, which are correspondingly arranged to each grid trace in each touch electrode, are uniformly distributed.
8. The touch display panel according to claim 1, wherein the touch electrode includes a plurality of grid traces, the mark structure includes a third mark structure, at least some of the grid traces in the same touch electrode are provided with the third mark structure correspondingly, and orthographic projections of the third mark structures on the light-emitting surface of the touch display panel, which are provided correspondingly to the grid traces at different positions in the same touch electrode, are different in shape, and/or the number of the third mark structures, which are provided correspondingly to the grid traces at different positions in the same touch electrode, is different.
9. The touch display panel according to claim 8, wherein at least one grid trace without the third mark structure is spaced between two grid traces corresponding to the third mark structure in the same touch electrode;
preferably, the third mark structure includes a first sub mark structure and a second sub mark structure, and the number of at least one of the first sub mark structure and the second sub mark structure, which are correspondingly arranged to the grid trace at different positions in the same touch electrode, is different;
preferably, the orthographic projections of the first sub-mark structure and the grid wires on the light-emitting surface of the touch display panel are overlapped;
preferably, the second sub-mark structure and the grid routing are arranged on the same layer, and the second sub-mark structure is between two adjacent touch electrodes.
10. A touch display device comprising the touch display panel according to any one of claims 1 to 9.
CN202211310484.0A 2022-10-25 2022-10-25 Touch display panel and touch display device Pending CN115617201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211310484.0A CN115617201A (en) 2022-10-25 2022-10-25 Touch display panel and touch display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211310484.0A CN115617201A (en) 2022-10-25 2022-10-25 Touch display panel and touch display device

Publications (1)

Publication Number Publication Date
CN115617201A true CN115617201A (en) 2023-01-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211310484.0A Pending CN115617201A (en) 2022-10-25 2022-10-25 Touch display panel and touch display device

Country Status (1)

Country Link
CN (1) CN115617201A (en)

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