CN110825265A - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN110825265A CN110825265A CN201911060674.XA CN201911060674A CN110825265A CN 110825265 A CN110825265 A CN 110825265A CN 201911060674 A CN201911060674 A CN 201911060674A CN 110825265 A CN110825265 A CN 110825265A
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
Abstract
The embodiment of the application provides a touch display panel and a touch display device. The touch display panel comprises a display area and a frame area surrounding the display area, wherein the frame area comprises a touch signal overlapping area, the touch display panel comprises a first substrate and a second substrate, the first substrate comprises a first substrate, a grid layer, an interlayer insulating layer and an anode layer, the grid layer comprises a plurality of fan-out lines passing through the touch signal overlapping area, and the anode layer comprises a plurality of first overlapping electrodes positioned in the touch signal overlapping area; the second substrate comprises a second substrate, a first conducting layer, an insulating layer and a second conducting layer, the first conducting layer comprises a touch lead located in a touch signal overlapping area, the second conducting layer comprises a second overlapping electrode located in the touch signal overlapping area, and the second overlapping electrode is electrically connected with the touch lead and matched with the first overlapping electrode. The embodiment can reduce the width of the frame, realize narrow frame design, realize in-cell type touch control, and facilitate the lightening and thinning of the touch control display panel.
Description
Technical Field
The application relates to the technical field of display, in particular to a touch display panel and a touch display device.
Background
The integrated touch display device has been widely accepted and used by people, and for example, a smart phone, a tablet computer, and the like all use the touch display device. With the further development of display technologies, people have more and more requirements on touch display devices, and touch display products with thinner and narrower frames have become an important advantage of product competition.
Disclosure of Invention
The application provides a touch display panel and a touch display device aiming at the defects of the prior art, and aims to solve the technical problems that the touch display device in the prior art needs to be further thinned and the frame is further narrowed.
In a first aspect, an embodiment of the present application provides a touch display panel, including a display area and a bezel area surrounding the display area, the bezel area including a touch signal overlapping area, the touch display device including a first substrate and a second substrate; wherein
The first substrate comprises a first substrate, a grid layer, an interlayer insulating layer and an anode layer which are sequentially arranged in a direction that the first substrate points to a second substrate, wherein the grid layer comprises a plurality of fan-out lines passing through the touch signal overlapping area, and the anode layer comprises a plurality of first overlapping electrodes positioned in the touch signal overlapping area;
the second substrate comprises a second substrate, a first conducting layer, an insulating layer and a second conducting layer which are sequentially arranged in the direction of pointing to the first substrate from the second substrate, the first conducting layer comprises a touch lead positioned in a touch signal overlapping area, the second conducting layer comprises a second overlapping electrode positioned in the touch signal overlapping area, and the second overlapping electrode is electrically connected with the touch lead and is matched with the first overlapping electrode.
Optionally, the frame region is provided with a power supply negative lead, and the first substrate further includes a source drain electrode layer located between the interlayer insulating layer and the anode layer, and a planarization layer located between the source drain electrode layer and the anode layer; the source-drain electrode layer comprises a plurality of shielding electrodes which are positioned in the touch signal overlapping area and electrically connected with the power supply negative electrode lead, and the orthographic projection of the first overlapping electrode on the first substrate covers the orthographic projection of the shielding electrodes on the first substrate.
Optionally, the frame area includes a lower frame area, the lower frame area includes an external circuit binding area and a touch signal overlapping area, the touch signal overlapping area is located on one side of the power source negative electrode lead wire close to the display area, and the external circuit binding area is located on one side of the power source negative electrode lead wire far away from the display area.
Optionally, the source-drain electrode layer further includes a connection line located in the touch signal overlapping region and connected between the adjacent shielding electrodes, and a distance between an orthographic projection of the connection line on the first substrate and an orthographic projection of any fanout line on the first substrate is greater than or equal to 0.
Optionally, the binding region includes a touch signal binding structure, the source-drain electrode layer further includes a touch signal patch cord, one end of the touch signal patch cord is connected to the first overlap electrode through a via hole, and the other end of the touch signal patch cord is connected to the touch signal binding structure; a gap is formed between the touch signal patch cord and the shielding electrode, and the width of the gap is larger than the distance between the touch signal patch cord and the shielding electrode, wherein the touch signal patch cord and the shielding electrode can interfere with each other.
Optionally, the planarization layer includes a first planarization layer and a second planarization layer, the first planarization layer covers the source-drain electrode layer and fills the gap between the shielding electrode and the touch signal patch cord, and the second planarization layer covers the first planarization layer.
Optionally, the gate layer includes a first gate layer and a second gate layer, the first gate layer includes a plurality of first fan-out lines passing through the touch signal overlapping region, and the second gate layer includes a plurality of second fan-out lines located in the touch signal overlapping region; the distance between the orthographic projection of the first fanout line on the first substrate and the orthographic projection of the second fanout line on the first substrate is greater than or equal to 0.
Optionally, the touch display panel further includes: and the distance between each first lapping electrode and the packaging glue is equal.
Optionally, the first substrate further includes a spacer, the spacer includes a first spacer located in the display area and a second spacer located in the frame area, and the arrangement density of the first spacer is greater than that of the second spacer.
Optionally, the touch display panel is a smart watch.
In a second aspect, an embodiment of the present application provides a touch display device, which includes the touch display panel described above.
The technical scheme provided by the embodiment of the application has the following beneficial technical effects:
according to the touch display panel and the touch display device provided by the embodiment, the first lapping electrode is manufactured on the anode layer positioned above the fanout line, so that the width of a frame can be reduced, and the narrow frame design is realized; in addition, the second substrate in the scheme is a cover plate, so that in-cell touch can be realized, and the touch display panel is light and thin.
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 top view of a touch display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic top view of another touch display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic view illustrating a film structure of a touch display panel according to an embodiment of the present disclosure;
fig. 4 is a partially enlarged view of a touch signal overlapping region of a first substrate according to an embodiment of the present disclosure;
fig. 5 is a partially enlarged view of a touch signal overlapping region of a second substrate according to an embodiment of the disclosure;
fig. 6 is a schematic view of another film structure of a touch display panel according to an embodiment of the present disclosure;
fig. 7 is a partially enlarged view of a touch signal landing area of another first substrate according to an embodiment of the disclosure;
fig. 8 is a schematic side view of a touch display panel according to an embodiment of the present disclosure;
fig. 9 is a partially enlarged view of a touch signal overlapping region of a first substrate according to an embodiment of the present disclosure;
fig. 10 is a schematic view illustrating a film structure of an array substrate according to an embodiment of the present disclosure;
FIG. 11 is an enlarged view of a touch signal landing area of another first substrate according to an embodiment of the present disclosure;
fig. 12 is a partially enlarged view of a touch signal overlapping region of another first substrate according to an embodiment of the present disclosure;
fig. 13 is a schematic view illustrating a film structure of another array substrate according to an embodiment of the present disclosure;
FIG. 14 is an enlarged partial view of region Q of FIG. 2;
fig. 15 is a schematic structural view of a second spacer according to an embodiment of the present disclosure.
Reference numerals:
1-a first substrate; 101-a first substrate; 102-a gate layer; 1021-a first gate layer; 1022 — a second gate layer; 103-interlayer insulating layer; 104-source drain electrode layer; 1041-a shield electrode; 1042-connecting lines; 1043-patch cord; 105-a planarization layer; 1051-a first planarizing layer; 1052-a second planarization layer; 106-anode layer; 1061 — a first strap electrode;
2-a second substrate; 201-a second substrate; 202-a first conductive layer; 2021-touch lead; 203-an insulating layer; 204-a second conductive layer; 2041-a second strap electrode;
3-packaging glue;
AA-display area; BM-frame area; 10-touch signal lap zone; 20-an external circuit binding area; a PS-spacer; PS 1-first spacer; PS 2-second spacer; l-fan-out line; l1 — first fanout line; l2 — second fanout line; GI1 — first gate insulating layer; GI2 — second gate insulation layer; VSS-negative lead of power supply.
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.
The inventor of the present application considers that, in order to meet the requirements of people for display devices, it has become a necessary trend to design a touch display panel that is light and thin and has a narrower frame. Taking a smart watch as an example, customers expect that the smart watch is thinner and lighter, and the frame is smaller and smaller.
The application provides a touch display panel and a touch display panel, which aim to solve the above 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.
As shown in fig. 1 and 2, the touch display panel includes a display area AA and a border area BM surrounding the display area AA and including a touch signal overlapping area 10. The touch display panel shown in fig. 1 is a rectangular touch display panel (specifically, a mobile phone, a tablet computer, etc.), and the touch display panel shown in fig. 2 is a circular touch display panel (specifically, a wearable display panel such as a smart watch, etc.).
As shown in fig. 3 and 4, the touch display panel provided in this embodiment includes a first substrate 1 and a second substrate 2. The first substrate includes a first substrate 101, a gate layer 101 located on one side of the first substrate 101 close to the second substrate 2, an interlayer insulating layer 102, and an anode layer 106; the second substrate 2 includes a second substrate 201, a first conductive layer 202 on a side of the second substrate 201 close to the first substrate 1, a second conductive layer 204, and an insulating layer 203 between the first conductive layer 202 and the second conductive layer 204. Specifically, the first substrate is an array substrate, and the second substrate is a cover plate.
As shown in fig. 3 and 4, the gate layer 102 includes a plurality of fan-out lines L located in the touch signal landing area 10, and the anode layer 106 includes a plurality of first landing electrodes 1061 located in the touch signal landing area 10.
As shown in fig. 3 to 5, the second substrate 2 includes a second substrate 201, a first conductive layer 202, a second conductive layer 204, and an insulating layer 203 between the first conductive layer 202 and the second conductive layer 204. The first conductive layer 202 includes a touch lead 2021 located in the touch signal overlapping area 10, the second conductive layer 204 includes a second overlapping electrode 2041 located in the touch signal overlapping area 10, and the second overlapping electrode 2041 is electrically connected to the touch lead 2021 and is adapted to the first overlapping electrode 1061.
In the touch display panel provided in this embodiment, the first overlapping electrode 1061 is manufactured by the anode layer 106 above the fanout line, so that the width of the frame can be reduced, and the narrow frame design is realized; in addition, when the second substrate is a glass cover plate, the scheme can realize in-cell type touch control, and is beneficial to thinning of the touch control display panel.
It should be noted that the array substrate in the touch display panel in the embodiment of the present application is an array substrate in an organic light emitting display panel, and although not shown in fig. 3 and 4, in fact, the touch display panel in the present application further includes an organic light emitting layer, a cathode layer, and the like, and the organic light emitting layer, the cathode layer, and the like do not relate to the core invention of the present application, and therefore, the present application does not describe the organic light emitting layer, the cathode layer, and the like.
Alternatively, as shown in fig. 1 or fig. 2, the frame area BM is provided with a power supply cathode lead VSS. As shown in fig. 6 and 7, the first substrate 1 further includes a source-drain electrode layer 104 between the interlayer insulating layer 103 and the anode layer 106, and a planarization layer 105 between the source-drain electrode layer 104 and the anode layer 106. The source-drain electrode layer 104 comprises a plurality of shielding electrodes 1041 located in the touch signal overlapping area 10, and the shielding electrodes 1041 are electrically connected with a power supply negative lead VSS; an orthographic projection of the first landing electrode 1061 on the first substrate 101 covers an orthographic projection of the shield electrode 1041 on the first substrate 101.
Note that, in order to facilitate the display of the relationship between the first landing electrode 1061 and the shield electrode, the gate insulating layer and the planarization layer are not shown in fig. 7.
In the touch display panel provided in this embodiment, the source-drain electrode layer 104 located in the touch signal overlapping area 10 is designed as the shielding electrode 1041 connected to the power supply negative lead VSS, so that the driving signal on the fan-out line and the touch signal on the first overlapping electrode 1061 can be prevented from interfering with each other.
Alternatively, the material of the first conductive layer 202 includes molybdenum metal, and the material of the second conductive layer 204 includes Indium Tin Oxide (ITO).
Optionally, as shown in fig. 1, the frame area BM includes a lower frame area, and the lower frame area includes an external circuit binding area 20 and a touch signal overlapping area 10, where the touch signal overlapping area 10 is located on a side of the power negative lead VSS close to the display area AA, and the external circuit binding area 20 is located on a side of the power negative lead VSS far from the display area AA. It should be noted that although the touch display panel shown in fig. 2 does not show the external circuit bonding area, the touch display panel shown in fig. 2 actually also includes the external circuit bonding area.
In this embodiment, the touch signal overlapping area 10 is designed on the lower frame, so that the first overlapping electrode 1061 is closer to the external circuit binding area 20 which is also arranged on the lower frame, which is beneficial to reducing the transmission resistance of the touch signal.
Optionally, referring to fig. 1, fig. 2 and fig. 8, the touch display panel provided in this embodiment further includes an encapsulation adhesive 3 located between the first substrate 1 and the second substrate 2, and distances between the first landing electrodes 1061 and the encapsulation adhesive 3 are equal. Specifically, the encapsulation adhesive 3 may be coated on the power supply cathode lead VSS, and it should be noted that the power supply cathode lead VSS may be manufactured by using the gate layer 102.
Specifically, in a rectangular display panel, the first overlapping electrodes 1061 may be arranged in a linear type; in the circular display panel, the first overlapping electrodes 1061 are arranged in an arc array, so long as it is ensured that the distances between each first overlapping electrode 1061 and the packaging adhesive 3 are equal.
In this embodiment, the distance between each first overlapping electrode 1061 and the packaging adhesive 3 is equal, so that the consistency of the transmission resistance substrate of each touch signal can be ensured, thereby improving the touch effect, and also facilitating alignment of the position of the first overlapping electrode 1061 in the manufacturing process and the process of butting the first overlapping electrode 1061 with the second overlapping electrode 2041, and facilitating reduction of the manufacturing difficulty of the first overlapping electrode 1061 and the butting difficulty of the first overlapping electrode 1061 and the second overlapping electrode 2041.
Optionally, as shown in fig. 9, the source-drain electrode layer 104 further includes a connection line 1042 located in the touch signal overlapping region 10 and connected between adjacent shielding electrodes, and a distance between an orthographic projection of the connection line 1042 on the first substrate 101 and an orthographic projection of any fan-out line L on the first substrate 101 is greater than or equal to 0. That is, the orthographic projection of the connecting line 1042 on the first substrate 101 does not overlap with the orthographic projection of any fan-out line 1021 on the first substrate 101, which can effectively avoid the interference between the signal on the connecting line 1042 and the signal on the fan-out line 1021.
Alternatively, as shown in fig. 10 and 11, the gate layer 102 includes a first gate layer 1021 and a second gate layer 1022, the first gate layer 1021 includes a plurality of first fan-out lines L1 passing through the touch signal strapping region 10, and the second gate layer 1022 includes a plurality of second fan-out lines L2 located in the touch signal strapping region 10; a distance between an orthogonal projection of the first fanout line L1 on the first substrate 101 and an orthogonal projection of the second fanout line L2 on the first substrate 101 is greater than or equal to 0.
Specifically, in order to avoid short circuit between the two gate layers, the array substrate further includes a first gate insulating layer GI1 and a second gate insulating layer GI 2.
Further, the first fanout lines L1 and the second fanout lines L2 are alternately arranged in a direction perpendicular to the extending direction of the first fanout lines L1. The arrangement is favorable for improving the wiring density of the fan-out wire and narrowing the frame.
The present embodiment can prevent signals on the first and second fanout lines L1 and L2 from interfering with each other by disposing the fanout lines L in the first gate layer 1021 and the second gate layer 1022, and making a distance between an orthogonal projection of the first fanout line L1 on the first substrate 101 and an orthogonal projection of the second fanout line L2 on the first substrate 101 greater than or equal to 0.
As shown in fig. 12 and 13, the external circuit binding region 20 includes a touch signal binding structure P, the source-drain electrode layer 104 further includes a touch signal patch cord 1043, one end of the touch signal patch cord 1043 is electrically connected to the first overlap electrode 1061, and the other end of the touch signal patch cord 1043 is connected to the touch signal binding structure P; a gap d is formed between the touch signal patch cord 1043 and the shielding electrode 1041, and the width of the gap d is greater than the distance that the touch signal patch cord 1043 and the shielding electrode 1041 can interfere with each other.
Specifically, as shown in fig. 12, the patch cord 1043 may be connected to the trace designed in the first gate layer 1021 and the touch signal bonding structure P through a via, or the patch cord 1043 may be connected to the trace designed in the second gate layer 1022 and the touch signal bonding structure P through a via. Certainly, the patch cord 1043 may be connected with the touch signal binding structure P in other manners, which is not specifically limited in this application, and in practical application, the specific manner of connecting the patch cord 1043 with the touch signal binding structure P may be selected according to the film layer where the touch signal binding structure P is located.
It should be noted that the width of the frame region can satisfy the width requirement of the gap d, that is, the width of the gap d does not increase the width of the frame region.
In this embodiment, the transfer line 1043 is formed on the source-drain electrode layer 104, so that the transmission of the touch signal between the lap joint and the touch signal binding structure can be realized; the distance between the touch signal patch cord 1043 and the shielding electrode 1041 is set to be greater than the distance that the touch signal patch cord 1043 and the shielding electrode 1041 can interfere with each other, so that interference between the touch signal patch cord 1043 and the shielding electrode 1041 can be avoided.
Alternatively, as shown in fig. 13, the planarization layer 105 includes a first planarization layer 1051 and a second planarization layer 1052, the first planarization layer 1051 covers the source/drain electrode layer 104 and fills the gap d between the shield electrode 1041 and the touch signal transfer line 1043, and the second planarization layer 1052 covers the first planarization layer 1051. In this embodiment, the first planarization layer 1051 can further prevent the shielding electrode 1041 and the touch signal patch line 1043 from interfering with each other while performing the insulating and planarization functions; the two planarization layers can better prevent the signals on the shielding electrode 1041 from interfering with the touch signals.
As shown in fig. 14, optionally, the first substrate 1 further includes spacers PS, the spacers PS include a first spacer PS1 located in the display area AA and a second spacer PS2 located in the frame area BM, and the arrangement density of the first spacers PS1 is greater than that of the second spacers PS 2.
Specifically, the second spacer PS2 is disposed between the display area AA and the frame sealing adhesive 3.
The distance between the two substrates can be maintained by the spacer PS in the embodiment, so as to prevent the two substrates from being squeezed with each other and affecting the tv effect, and the second spacer PS2 disposed in the frame area BM can also share the pressure of the frame area BM after the package adhesive 3 is sintered, so as to prevent the pressure from concentrating in the touch signal overlapping area, which can improve the display problem of newton rings caused by the pressure concentrating in the local area.
The Newton ring is also called Newton ring, and is a thin film interference phenomenon in optics, and the interference pattern is a plurality of concentric rings with alternate light and shade. In the present application, "newton's rings" refer to a display problem in which a display screen shows annular display images with alternating bright and dark portions.
As shown in fig. 14 and 15, the second spacer PS2 may be formed of the first planarizing layer 1051 and the second planarizing layer 1052 in the frame region BM, may be formed of only the first planarizing layer 1051 or the second planarizing layer 1052, and may be formed at the same time as the first spacer PS1 in the display region AA.
Based on the same inventive concept, the present embodiment provides a touch display panel, which includes the touch display panel in the above embodiments. The touch display panel provided in this embodiment can achieve the beneficial effects of the touch display panels in the above embodiments, and the details are not repeated herein.
Further, the touch display panel is a wearable touch display panel. Specifically, wearable touch-control display panel is intelligent wrist-watch, intelligent bracelet etc..
By applying the embodiment of the application, at least the following beneficial effects can be realized:
according to the touch display panel and the touch display device provided by the embodiment, the first lapping electrode is manufactured on the anode layer positioned above the fanout line, so that the width of a frame can be reduced, and the narrow frame design is realized; meanwhile, the source drain electrode layer positioned in the lap joint area of the touch signal is designed into a shielding electrode connected with a power supply cathode lead, so that the driving signal on the fanout line and the touch signal on the first lap joint electrode can be prevented from interfering with each other; in addition, the second substrate in the scheme is a cover plate, so that in-cell touch can be realized, and the touch display panel is light and thin.
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.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
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 (11)
1. A touch display panel comprises a display area and a frame area surrounding the display area, and is characterized in that the frame area comprises a touch signal lap joint area, and the touch display panel comprises a first substrate and a second substrate; wherein
The first substrate comprises a first substrate, a grid layer, an interlayer insulating layer and an anode layer which are sequentially arranged in a direction that the first substrate points to a second substrate, wherein the grid layer comprises a plurality of fan-out lines passing through the touch signal overlapping area, and the anode layer comprises a plurality of first overlapping electrodes positioned in the touch signal overlapping area;
the second substrate comprises a second substrate, a first conducting layer, an insulating layer and a second conducting layer which are sequentially arranged in the direction of pointing to the first substrate from the second substrate, the first conducting layer comprises a touch lead positioned in a touch signal overlapping area, the second conducting layer comprises a second overlapping electrode positioned in the touch signal overlapping area, and the second overlapping electrode is electrically connected with the touch lead and is matched with the first overlapping electrode.
2. The touch display panel according to claim 1, wherein the frame region is provided with a power supply negative lead, and the first substrate further includes a source/drain electrode layer located between the interlayer insulating layer and the anode layer, and a planarization layer located between the source/drain electrode layer and the anode layer; wherein
The source-drain electrode layer comprises a plurality of shielding electrodes which are positioned in the touch signal overlapping area and electrically connected with the power supply negative electrode lead, and the orthographic projection of the first overlapping electrode on the first substrate covers the orthographic projection of the shielding electrodes on the first substrate.
3. The touch display panel according to claim 2, wherein the bezel region includes a lower bezel region, and the lower bezel region includes an external circuit bonding region and the touch signal bonding region, wherein the touch signal bonding region is located on a side of the power negative lead near the display region, and the external circuit bonding region is located on a side of the power negative lead far away from the display region.
4. The touch display panel of claim 3,
the source-drain electrode layer further comprises a connecting line which is located in the touch signal overlapping area and connected between the adjacent shielding electrodes, and the distance between the orthographic projection of the connecting line on the first substrate and the orthographic projection of any fanout line on the first substrate is larger than or equal to 0.
5. The touch display panel according to claim 4, wherein the binding region includes a touch signal binding structure, the source-drain electrode layer further includes a touch signal patch cord, one end of the touch signal patch cord is connected to the first overlapping electrode through a via hole, and the other end of the touch signal patch cord is connected to the touch signal binding structure;
a gap is formed between the touch signal patch cord and the shielding electrode, and the width of the gap is larger than the distance between the touch signal patch cord and the shielding electrode, wherein the touch signal patch cord and the shielding electrode can interfere with each other.
6. The touch display panel according to claim 5, wherein the planarization layer includes a first planarization layer and a second planarization layer, the first planarization layer covers the source-drain electrode layer and fills the gap between the shielding electrode and the touch signal transfer line, and the second planarization layer covers the first planarization layer.
7. The touch display panel according to any one of claims 1 to 6,
the gate layer comprises a first gate layer and a second gate layer, the first gate layer comprises a plurality of first fan-out lines passing through the touch signal overlapping area, and the second gate layer comprises a plurality of second fan-out lines positioned in the touch signal overlapping area;
the distance between the orthographic projection of the first fanout line on the first substrate and the orthographic projection of the second fanout line on the first substrate is greater than or equal to 0.
8. The touch display panel according to any one of claims 1 to 6, further comprising: and the distance between each first lapping electrode and the packaging glue is equal.
9. The touch display panel according to any one of claims 1 to 6, wherein the first substrate further includes spacers, the spacers include a first spacer located in the display area and a second spacer located in the frame area, and an arrangement density of the first spacer is greater than an arrangement density of the second spacer.
10. The touch display panel according to any one of claims 1 to 6, wherein the touch display panel is circular in shape.
11. A touch display device comprising the touch display panel according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060674.XA CN110825265B (en) | 2019-11-01 | 2019-11-01 | Touch display panel and touch display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060674.XA CN110825265B (en) | 2019-11-01 | 2019-11-01 | Touch display panel and touch display device |
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| CN110825265A true CN110825265A (en) | 2020-02-21 |
| CN110825265B CN110825265B (en) | 2023-05-12 |
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| CN111857403A (en) * | 2020-04-24 | 2020-10-30 | 苏州绘格光电科技有限公司 | Touch screen and preparation method thereof |
| CN112416168A (en) * | 2020-11-18 | 2021-02-26 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN113257876A (en) * | 2021-05-12 | 2021-08-13 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN113407058A (en) * | 2021-06-23 | 2021-09-17 | 昆山国显光电有限公司 | Touch control display panel |
| CN113874821A (en) * | 2020-03-19 | 2021-12-31 | 京东方科技集团股份有限公司 | Touch sensor and display device |
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