CN112596631B - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN112596631B CN112596631B CN202011581778.8A CN202011581778A CN112596631B CN 112596631 B CN112596631 B CN 112596631B CN 202011581778 A CN202011581778 A CN 202011581778A CN 112596631 B CN112596631 B CN 112596631B
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- 230000015556 catabolic process Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 14
- 230000003068 static effect Effects 0.000 description 14
- 230000005611 electricity Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000000059 patterning Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
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- 239000000758 substrate Substances 0.000 description 2
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- 230000008054 signal transmission Effects 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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- Position Input By Displaying (AREA)
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Abstract
The application discloses a touch display panel and a touch display device. The touch display panel includes: a display area; and a non-display region located at least partially at an edge of the display region; the non-display area comprises a first subarea and a second subarea, and the first subarea is positioned between the second subarea and the display area; the non-display area comprises a grounding wire; wherein the grounding wire comprises a first grounding sub-wire positioned in the first subarea and a second grounding sub-wire positioned in the second subarea; the thickness of the first grounding sub-line is D1, the thickness of the second grounding sub-line is D2, and D1 is less than D2. According to the touch display panel and the touch display device provided by the embodiment of the application, the thickness of the second grounding sub-line is larger than that of the first grounding sub-line by increasing the thickness of the second grounding sub-line, and the risk of external electrostatic breakdown of the second sub-line can be reduced due to the increase of the thickness of the second sub-region, which can be conducted.
Description
Technical Field
The application belongs to the technical field of touch display, and particularly relates to a touch display panel and a touch display device.
Background
In order to meet various demands of people on electronic products, the display screen occupies larger and larger space proportion on the electronic products, and the frame of the display screen is also narrower and narrower. In a display screen with a narrow frame, a transmission line, a receiving line and a ground line are arranged on the same layer at the frame position, and certain electrostatic discharge (ESD) capability is required to be provided, but in the prior art, the implementation is usually realized by increasing the line width and the line distance, but in the display screen with the narrow frame, the line width and the line distance of the transmission line, the receiving line and the ground line are limited, so that the ESD capability is limited, and the narrow frame and the high ESD capability are difficult to be compatible.
Disclosure of Invention
The embodiment of the application provides a touch display panel and a touch display device, which have good antistatic capability.
In a first aspect, an embodiment of the present application provides a touch display panel, including: a display area; and a non-display region located at least partially at an edge of the display region; the non-display area comprises a first subarea and a second subarea, and the first subarea is positioned between the second subarea and the display area; the non-display area comprises a grounding wire; wherein the grounding wire comprises a first grounding sub-wire positioned in the first subarea and a second grounding sub-wire positioned in the second subarea; the thickness of the first grounding sub-line is D1, the thickness of the second grounding sub-line is D2, and D1 is less than D2.
In a second aspect, an embodiment of the present application provides a touch display device, including: a cover plate; and the touch display panel of the first aspect; the base plate is positioned at one side of the touch display panel, which is away from the cover plate.
Compared with the prior art, the touch display panel and the touch display device provided by the embodiment of the application have the advantages that the thickness of the second grounding sub-line is increased, the thickness of the second grounding sub-line is larger than that of the first grounding sub-line, and the risk of the second sub-line being broken down by external static electricity can be reduced due to the increase of the thickness of the second sub-region, which can be conducted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
In the accompanying drawings:
fig. 1 is a schematic view of an overall partition of a touch display panel according to some embodiments of the present application;
FIG. 2 is a schematic view of a touch display panel according to some embodiments of the present application corresponding to the section A-A of FIG. 1;
FIG. 3 is a schematic view of a touch display panel according to some embodiments of the present application corresponding to the cross-sectional layer A-A of FIG. 1;
FIG. 4 is a schematic diagram of a hierarchical structure of a ground wire according to some embodiments of the present application;
FIG. 5 is a schematic view of a layered structure of a ground wire according to other embodiments of the present application;
FIG. 6 is a schematic diagram of a signal line and a first sub-layer different layer arrangement according to some embodiments of the present application;
FIG. 7 is a schematic diagram of a signal line and a first sub-layer different layer arrangement according to other embodiments of the present disclosure;
FIG. 8 is a schematic diagram of a signal line and first sub-layer arrangement according to still other embodiments of the present application;
FIG. 9 is a schematic diagram of signal lines and shielding lines according to some embodiments of the present application;
FIG. 10 is a schematic partial cross-sectional view of some embodiments of the present application protecting a 1T1R type touch panel;
FIG. 11 is a schematic partial cross-sectional view illustrating other embodiments of the present application for protecting a 1T1R type touch panel;
FIG. 12 is a schematic partial cross-sectional view of a touch panel of the type 1T1R according to further embodiments of the present application;
FIG. 13 is a schematic partial cross-sectional view of some embodiments of the present application protecting a 2T1R type touch panel;
FIG. 14 is a schematic partial cross-sectional view illustrating other embodiments of the present application for protecting a 2T1R type touch panel;
FIG. 15 is a schematic partial cross-sectional view of a 2T1R type touch panel according to still other embodiments of the present application;
FIG. 16 is a schematic partial cross-sectional view of a touch panel of the 2T1R type according to further embodiments of the present application;
FIG. 17 is a schematic partial cross-sectional view of a 2T2R type touch panel according to some embodiments of the present application;
FIG. 18 is a schematic partial cross-sectional view illustrating other embodiments of the present application for protecting a 2T2R type touch panel;
FIG. 19 is a schematic partial cross-sectional view of a 2T2R type touch panel according to still other embodiments of the present application;
FIG. 20 is a schematic partial cross-sectional view of a 2T2R type touch panel according to further embodiments of the present application;
fig. 21 is a schematic diagram of a touch display panel according to some embodiments of the present application.
Reference numerals:
10, a display area; 20, a non-display area; 201, a first sub-zone; 202, a second sub-zone;
1, grounding wires; 11, a first ground sub-line; 111, a first sub-layer; 12, a second ground sub-line; 121, a second sub-layer; 122, a third sub-layer; 2, a signal line; 3, shielding wires; 4, a touch layer; 41, a touch electrode layer; 42, bridging layer;
100, cover plate; 200, a touch display panel; 300, a substrate.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, 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 showing an example of the present application.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The embodiments will be described in detail below with reference to the accompanying drawings.
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. Moreover, 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 phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
It will be understood that when a layer, an area, or a structure is described as being "on" or "over" another layer, another area, it can be referred to as being directly on the other layer, another area, or another layer or area can be included between the layer and the other layer, another area. And if the component is turned over, that layer, one region, will be "under" or "beneath" the other layer, another region.
In addition, the term "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.
Fig. 1 is a schematic view of an overall partition of a touch display panel according to an embodiment of the present application, fig. 2 is a schematic view of a cross-section a of the touch display panel according to some embodiments of the present application corresponding to fig. 1, and fig. 3 is a schematic view of a cross-section a layer structure of the touch display panel according to some embodiments of the present application corresponding to fig. 1. As shown in fig. 1 and 2, the touch display panel includes: a display area 10, a light emitting display area 10 of the touch display panel; and a non-display area 20, wherein the non-display area 20 is located at least part of the edge of the display area 10, and since the non-display area 20 is located at the edge of the display area 10, static electricity outside in the prior art generally enters the display area 10 through the non-display area 20, thereby affecting the display area 10; the non-display area 20 comprises a first sub-area 201 and a second sub-area 202, the first sub-area 201 being located between the second sub-area 202 and the display area 10. As shown in fig. 3, the non-display area 20 includes a ground line 1; wherein the ground line 1 comprises a first ground sub-line 11 located in the first sub-zone 201 and a second ground sub-line 12 located in the second sub-zone 202; the thickness of the first grounding sub-line 11 is D1, the thickness of the second grounding sub-line 12 is D2, and D1 is less than D2. In this embodiment, since the thickness D2 of the second grounding sub-line 12 is greater than the thickness D1 of the first grounding sub-line 11, and the second sub-area 202 where the second grounding sub-line 12 is located outside the first sub-area 201 where the first grounding sub-line 11 is located, when external static electricity invades, the external static electricity will enter the second grounding sub-line 12 first, and the thickness of the second grounding sub-line 12 increases, so that the conductivity of the second grounding sub-line 12 is improved, and the external static electricity invaded by the external static electricity can be guided by the second grounding sub-line 12 more easily, so that breakdown of the second grounding sub-line 12 is not easily caused, and the ESD capability of the grounding line 1 is improved.
In practical use of the embodiment of the present application, the ground wire 1 is disposed in the non-display area 20, and as one of the main structures of antistatic, the ground wire 1 should be located at the outer side of the antistatic protection object, so that the external static electricity is blocked by the ground wire 1, and the antistatic protection object may be at least one of a display panel disposed in the display area 10, a touch control, and a trace disposed in the non-display area 20.
In some embodiments of the present application, the first grounding sub-line 11 is electrically connected to the second grounding sub-line 12, and since the thickness of the second grounding sub-line 12 is greater than that of the first grounding sub-line 11, when the touch display panel is horizontally placed, in the longitudinal section of the touch display panel, the first grounding sub-line 11 and the second grounding sub-line 12 form a "T" structure: by virtue of the greater thickness, the second grounding sub-line 12 can effectively prevent external static electricity invasion; the first grounding sub-line 11 can more effectively guide away the static electricity entering the second grounding sub-line 12 by virtue of the smaller thickness, which is beneficial to releasing the static electricity, avoiding static electricity from accumulating in the second grounding sub-line 12 to cause static breakdown, and further improving the ESD capability.
Fig. 4 is a schematic view of a layered structure of a ground wire 1 according to some embodiments of the present application, and fig. 5 is a schematic view of a layered structure of a ground wire 1 according to other embodiments of the present application. As shown in fig. 4 and 5, the first ground sub-line 11 includes: a first sub-layer 111; the second ground sub-line 12 includes: a second sub-layer 121 electrically connected to the first sub-layer 111; at least one third sub-layer 122 electrically connected to the second sub-layer 121; wherein the thickness of the first sub-layer 111 is smaller than the sum of the thicknesses of the second sub-layer 121 and the third sub-layer 122. Considering the electrical connection of the first sub-layer 111 and the second sub-layer 121, as shown in fig. 5, the first sub-layer 111 and the second sub-layer 121 may be disposed in the same layer; as shown in fig. 4, if the first sub-layer 111 and the second sub-layer 121 are provided in different layers, electrical connection may be implemented in the form of via connection; the second sub-layer 121 and the third sub-layer 122 are laminated and connected by a via.
In some embodiments of the present application, the non-display area 20 includes: at least one signal line 2 for displaying that the signal line 2 can be protected; the signal line 2 is insulated from the first sublayer 111, so that the antistatic protection of the ground line 1 to the signal line 2 is realized.
For example, when the signal line 2 is used for signal transmission of a touch panel, the signal line 2 may be a Tx line (transmission, driving channel) or an Rx line (reception, sensing channel): when the Tx line and the Rx line are each one group, the signal line 2 includes two groups, and corresponds to the existing 1T1R type touch panel; when there are one set of Tx lines and two sets of Rx lines, the signal lines 2 include three sets, and correspond to the existing 1T2R type touch panel; when there are two groups of Tx lines and one group of Rx lines, the signal lines 2 include three groups, and correspond to the existing 2T1R type touch panel; when there are two groups of Tx lines and two groups of Rx lines, the signal lines 2 include four groups, and correspond to the conventional 2T2R type touch panel. Regardless of the type of touch panel, the grounding wire 1 can realize electrostatic discharge protection of the signal wire 2 through a T-shaped structure.
In some embodiments of the present application, the touch display panel further includes: the display panel, the ground wire 1 is set up in the display panel; the display panel comprises a display layer, which is located in the display area 10, and which is electrically connected to at least one signal line 2. The display layer of the embodiment of the present application includes a scan line and a data line, and as the signal line 2, the scan line and/or the data line are located in the portion of the non-display area 20, and the ground line 1 of the embodiment of the present application is used for antistatic protection.
In some embodiments of the present application, the display layer is disposed in the same layer as the first sub-layer 111. When the touch display panel of the embodiment of the application is produced, since the display layer and the first sub-layer 111 are in the same layer, when the patterning treatment is performed on the display layer, the patterning treatment is performed on the first sub-layer 111 of the non-display area 20 at the same time, and two parts are completed at a time, so that the production process can be simplified, and the production cost can be saved.
In some embodiments of the present application, the touch display panel further includes: the touch panel, the grounding wire 1 is set up in the touch panel; the touch panel comprises a touch layer 4, and the touch layer 4 is positioned in a display area 10; the touch layer 4 is electrically connected to at least one signal line 2. The touch layer 4 of the present embodiment includes Tx lines and Rx lines as signal lines 2, which are located at portions of the non-display area 20, and is protected from static electricity by the ground line 1 of the present embodiment.
In some embodiments of the present application, the touch layer 4 is disposed on the same layer as the first sub-layer 111. When the touch control touch panel of the embodiment of the application is produced, the touch control layer 4 and the first sub-layer 111 are in the same layer, so that when patterning is performed on the touch control layer 4, patterning is performed on the first sub-layer 111 of the non-touch control area at the same time, two parts are completed at one time, the production process can be simplified, and the production cost is saved.
Fig. 6 is a schematic diagram of a different layer arrangement of the signal line 2 and the first sub-layer 111 according to some embodiments of the present application. As shown in fig. 6, the at least one signal line 2 is disposed in different layers from the first sub-layer 111, so that the width of the first sub-region 201 can be reduced, and thus the width of the whole non-display region 20 can be reduced, so that the proportion of the display region 10 relative to the whole touch display panel is increased. In the conventional touch display panel, the non-display area 20 corresponds to the frame of the touch display device, and is generally used as a routing area of the touch display panel, and the conventional routing generally performs the same-layer arrangement of all the signal lines 2 and the grounding lines 1, so that the number of the lines and the width of the frame have a positive correlation. According to the embodiment of the application, the signal line 2 and the first sub-layer 111 are arranged in one layer, so that a laminated structure is formed between at least a part of the signal line 2 and the first grounding sub-line 11, the width of the first sub-region 201 is reduced, the width of the non-display region 20 is reduced, and the narrow frame design of the touch display device is facilitated. Taking the example of the ground line 1 for antistatic protection of a 1T1R type touch panel, tx lines and Rx lines are routed as signal lines 2 in the first sub-area 201, and at least one of the Tx lines and the Rx lines as signal lines 2 is disposed in different layers from the first ground sub-line 11, forming a laminated structure, reducing the width of the first sub-area 201. Note that, all the signal lines 2 may be arranged in a different layer from the first sub-layer 111, or some of the signal lines 2 may be arranged in a different layer from the first sub-layer 111, and the signal lines 2 not arranged in a different layer from the first sub-layer 111 may be arranged in the same layer as the first sub-layer 111.
Fig. 7 is a schematic diagram of a different layer arrangement of the signal line 2 and the first sub-layer 111 according to some embodiments of the present application. As shown in fig. 7, the signal lines 2 are provided with at least two; wherein at least two signal lines 2 are respectively located at two sides of the first sub-layer 111. When the number of the signal lines 2 is not less than two and is different from the first sub-layer 111, since the first sub-layer 111 is located between the two signal lines 2, the first sub-layer 111 can realize signal shielding for the signal lines 2 of the two different layers in addition to the function of realizing grounding, thereby preventing crosstalk from occurring between the two signal lines 2. Taking the example of the ground line 1 for antistatic protection of the 1T1R type touch panel, the Tx line and the Rx line are routed in the first sub-area 201 as the signal line 2, and the Tx line and the Rx line as the signal line 2 are respectively located at two sides of the first sub-layer 111 and form a laminated structure with the first sub-layer 111, so that not only the width of the first sub-area 201 is further reduced, but also the Tx line and the Rx line can be shielded by the first sub-layer 111 to prevent signal crosstalk between the Tx line and the Rx line. When the signal line 2 is more than two, for example, a 2T1R type touch panel, tx1 lines, tx2 lines, and Rx lines are routed as the signal line 2 within the first sub-area 201, and if the Tx1 lines and the Rx lines as the signal line 2 are respectively located at both sides of the first sub-layer 111, the Tx2 lines may be co-layered with the first sub-layer 111, or may be co-layered with the Tx1 lines or the Rx lines, located at one side of the first sub-layer 111.
Fig. 8 is a schematic diagram of a different layer arrangement of the signal line 2 and the first sub-layer 111 according to some embodiments of the present application. As shown in fig. 8, the signal lines 2 are provided with at least two; wherein, at least two signal lines 2 are located on the same side of the first sub-layer 111 and are arranged on the same layer. When the number of the signal wires 2 is not lower than two, and the two signal wires 2 are arranged in different layers with the first sub-layer 111 and are positioned at the same side of the first sub-layer 111, the two signal wires 2 are arranged in the same layer, as signal shielding is required between the two signal wires 2, and other shielding layers are arranged between the two signal wires 2, the thickness of the first sub-layer 201 can be obviously increased, moreover, the grounding wire 1 is used as the grounding and shielding structure of the embodiment, the additional shielding layers are required to be electrically connected with the first sub-layer 111, the difficulty of production is greatly increased, the signal wires 2 positioned at the same side of the first sub-layer 111 are arranged in the same layer, the thickness of the first sub-layer 201 can not be obviously increased, and the shielding structure arranged between the signal wires 2 can be directly electrically connected with the first sub-layer 111, so that the production process is simple.
Fig. 9 is a schematic diagram of a signal line 2 and a shielding line 3 according to some embodiments of the present application. As shown in fig. 9, the first sub-area 201 includes: a shield line 3 disposed between adjacent signal lines 2 on the same side as the first sub-layer 111; the shielding wire 3 is insulated from the signal wire 2; wherein the shielding wire 3 is electrically connected to the first sub-layer 111. When the number of the signal lines 2 on the same side of the first sub-layer 111 is not less than two, the shielding lines 3 are arranged between the signal lines 2 to prevent crosstalk between the signal lines 2, and meanwhile, as the signal lines 2 on the same side of the first sub-layer 111 are arranged on the same layer, the shielding lines 3 are also arranged on the same layer as the signal lines 2, so that the number of layers is not increased, and the production process is simplified.
Fig. 10-13 are partial cross-sectional schematic views in some embodiments of the present application. Taking the example of the ground line 1 for antistatic protection of a 1T1R type touch panel, tx lines and Rx lines as signal lines 2 are routed in the first sub-area 201, three ways may be adopted:
(1) As shown in fig. 10, one of the Tx line and the Rx line is located at one side of the first sub-layer 111, and the other is disposed at the same layer as the first sub-layer 111;
(2) As shown in fig. 11, tx lines and Rx lines are located at both sides of the first sub-layer 111, respectively;
(3) As shown in fig. 12, the Tx lines and the Rx lines are located at the same side of the first sub-layer 111, and the Tx lines and the Rx lines are disposed at the same layer.
As shown in fig. 11, when the corresponding manner of (2) is adopted: since the Tx line, the Rx line and the first ground sub-line 11 form a stacked structure, the width of the corresponding first sub-region 201 is the smallest, which is most advantageous for the narrow frame design of the touch display panel; in order to simplify the production process, considering that the touch layer 4 includes the touch electrode layer 41 and the bridge layer 42, one of the Tx line and the Rx line as the signal line 2 is patterned on the same metal layer as the bridge layer and the third sub-layer 122, the other is patterned on the additionally added metal layer, and the first sub-layer 111, the second sub-layer 121, and the touch electrode layer 41 are patterned on the same metal layer.
Fig. 13-17 are partial cross-sectional schematic views in some embodiments of the present application. Taking the example of the ground line 1 for antistatic protection of the 2T1R type touch panel, the Tx1 line, the Tx2 line, and the Rx line as the signal line 2 are wired in the first sub-area 201, four ways may be adopted:
(1) As shown in fig. 13, one or two of the Tx1 line, the Tx2 line, and the Rx line are located at one side of the first sub-layer 111, and the rest are arranged at the same layer as the first sub-layer 111;
(2) As shown in fig. 14, one of the Tx1 line, the Tx2 line, and the Rx line is located at one side of the first sub-layer 111, and the rest is located at the other side of the first sub-layer 111 and is disposed at the same layer;
(3) As shown in fig. 15, one of the Tx1 line, the Tx2 line, and the Rx line is located at one side of the first sub-layer 111, one is located at the other side of the first sub-layer 111, and the rest is arranged at the same layer as the first sub-layer 111;
(4) As shown in fig. 16, the Tx1 line, the Tx2 line, and the Rx line are all located on the same side of the first sub-layer 111, and the Tx1 line, the Tx2 line, and the Rx line are arranged in the same layer.
As shown in fig. 14, when the Tx1 line and the Tx2 line are disposed on one side of the first sub-layer 111 and the Rx line is disposed on the other side of the first sub-layer 111 in the (2) correspondence manner: the Tx1 line and the Tx2 line are in the same layer and form a layer structure with the first sub-layer 111 and the Rx line, and the width of the corresponding first sub-region 201 is the smallest, which is most beneficial to the narrow frame design of the touch display panel; in order to simplify the production process, considering that the touch layer 4 includes the touch electrode layer 41 and the bridge layer 42, one of the Tx1 line and the Tx2 line and the Rx line as the signal line 2 is patterned on the same metal layer as the bridge layer and the third sub-layer 122, the other is patterned on the additionally added metal layer, and the first sub-layer 111, the second sub-layer 121 and the touch electrode layer 41 are patterned on the same metal layer.
Taking the example of the ground line 1 for antistatic protection of the 1T2R type touch panel, tx lines, rx1 lines, and Rx2 lines as signal lines 2 are routed in the first sub-area 201, four ways may be adopted, similar to the 2T1R type touch panel:
(1) One or two of the Tx line, the Rx1 line, and the Rx2 line are located at one side of the first sub-layer 111, and the rest are arranged at the same layer as the first sub-layer 111;
(2) One of the Tx line, the Rx1 line, and the Rx2 line is located at one side of the first sub-layer 111, one is located at the other side of the first sub-layer 111, and the rest is arranged at the same layer as the first sub-layer 111;
(3) One of the Tx line, the Rx1 line, and the Rx2 line is located at one side of the first sub-layer 111, and the rest is located at the other side of the first sub-layer 111 and is disposed at the same layer;
(4) The Tx line, the Rx1 line, and the Rx2 line are all located on the same side of the first sub-layer 111, and the Tx line, the Rx1 line, and the Rx2 line are disposed on the same layer.
When the Rx1 line and the Rx2 line are disposed on one side of the first sub-layer 111 and the Tx line is disposed on the other side of the first sub-layer 111 in the corresponding manner of (3): the Rx1 line and the Rx2 line are in the same layer, and form a layer structure with the first sub-layer 111 and the Tx line, and the corresponding first sub-region 201 has the smallest width, which is most beneficial to the narrow frame design of the touch display panel; in order to simplify the production process, considering that the touch layer 4 includes the touch electrode layer 41 and the bridge layer 42, one of the Rx1 line and the Rx2 line and the Tx line as the signal line 2 is patterned on the same metal layer as the bridge layer and the third sub-layer 122, the other is patterned on the additionally added metal layer, and the first sub-layer 111, the second sub-layer 121 and the touch electrode layer 41 are patterned on the same metal layer.
In fig. 17 to 20, taking the example of the ground line 1 for the anti-static protection of the 2T2R type touch panel, the Tx1 line, the Tx2 line, the Rx1 line, and the Rx2 line are wired as the signal line 2 within the first sub-area 201, four ways may be adopted:
(1) As shown in fig. 17, one, two or three of the Tx1 line, the Tx2 line, the Rx1 line and the Rx2 line are located at one side of the first sub-layer 111, and the rest are arranged at the same layer as the first sub-layer 111;
(2) As shown in fig. 18, one or two of the TTx1 line, the Tx2 line, the Rx1 line, and the Rx2 line are located at one side of the first sub-layer 111, and the rest are located at the other side of the first sub-layer 111 and are arranged at the same layer;
(3) As shown in fig. 19, one or two of the Tx1 line, the Tx2 line, the Rx1 line, and the Rx2 line are positioned at one side of the first sub-layer 111, the other is positioned at the other side of the first sub-layer 111, and the rest is arranged at the same layer as the first sub-layer 111;
(4) As shown in fig. 20, the Tx1 line, the Tx2 line, the Rx1 line, and the Rx2 line are all located on the same side of the first sub-layer 111, and the Tx line, the Rx1 line, and the Rx2 line are disposed in the same layer.
As shown in fig. 18, when the Rx1 line and the Rx2 line are provided on one side of the first sub-layer 111 and the Tx1 line and the Tx2 line are provided on the other side of the first sub-layer 111 in the (2) correspondence manner: the Rx1 line and the Rx2 line are in the same layer, the Tx1 line and the Tx2 line are in the same layer, the two layers and the first sub-layer 111 form a laminated structure, the width of the corresponding first sub-zone 201 is minimum, and the narrow frame design of the touch display panel is most facilitated; in order to simplify the production process, considering that the touch layer 4 includes the touch electrode layer 41 and the bridge layer 42, one of the layers corresponding to the Rx1 line and the Rx2 line and the layers corresponding to the Tx1 line and the Tx2 line as the signal line 2 is patterned on the same metal layer as the bridge layer and the third sub-layer 122, the other is patterned on the additionally added metal layer, and the first sub-layer 111, the second sub-layer 121, and the touch electrode layer 41 are patterned on the same metal layer.
It should be noted that, in the process of simplifying the manufacturing, two third sub-layers 122 may be provided, where one third sub-layer 122 is patterned on the same metal layer as the bridge layer 42, and the other third sub-layer 122 is patterned on an additional metal layer.
Fig. 21 is a schematic diagram of a touch display panel 200 according to an embodiment of the present application, where the touch display device includes: a cover plate 100; and the touch display panel 200 of the foregoing embodiments of the present application; the substrate 300 is located at a side of the touch display panel 200 away from the cover plate 100.
In summary, compared with the prior art, the touch display panel 200 and the touch display device provided in the embodiments of the present application have the advantages that the thickness of the second grounding sub-line 12 is increased, the thickness of the second grounding sub-line 12 is greater than that of the first grounding sub-line 11, and the risk of the second sub-line 202 being broken down by external static electricity can be reduced due to the increase of the thickness of the second sub-line 202, which can be conducted.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (12)
1. A touch display panel, comprising:
a display area; and
a non-display region located at an edge of at least a portion of the display region; the non-display region includes a first sub-region and a second sub-region, the first sub-region being located between the second sub-region and the display region;
the non-display area comprises a grounding wire; wherein the ground line comprises a first ground sub-line located in the first sub-region and a second ground sub-line located in the second sub-region; the thickness of the first grounding sub-line is D1, the thickness of the second grounding sub-line is D2, and D1 is smaller than D2;
the first ground sub-line includes: a first sub-layer;
the second ground sub-line includes: a second sub-layer electrically connected to the first sub-layer; at least one third sub-layer electrically connected to the second sub-layer;
wherein the thickness of the first sub-layer is less than the sum of the thicknesses of the second sub-layer and the third sub-layer.
2. The touch display panel of claim 1, wherein the first ground sub-line is electrically connected to the second ground sub-line.
3. The touch display panel of claim 1, wherein the non-display area comprises:
at least one signal line located in the first sub-region; the signal line is insulated from the first sub-layer.
4. The touch display panel according to claim 3, wherein at least one of the signal lines is disposed different from the first sub-layer.
5. The touch display panel according to claim 3, wherein the signal lines are provided with at least two;
at least two signal lines are respectively positioned at two sides of the first sub-layer.
6. The touch display panel according to claim 3, wherein the signal lines are provided with at least two;
at least two signal lines are positioned on the same side of the first sub-layer and are arranged on the same layer.
7. The touch display panel of claim 6, wherein the first sub-region comprises:
the shielding wire is arranged between the adjacent signal wires positioned on the same side of the first sub-layer; the shielding wire is insulated from the signal wire;
wherein the shield wire is electrically connected with the first sub-layer.
8. The touch display panel of claim 3, further comprising:
the display panel is provided with the grounding wire; the display panel comprises a display layer, the display layer is located in the display area, and the display layer is electrically connected with at least one signal line.
9. The touch display panel of claim 8, wherein the display layer is co-layer with the first sub-layer.
10. The touch display panel of claim 3, further comprising:
the grounding wire is arranged on the touch panel; the touch panel comprises a touch layer, and the touch layer is positioned in the display area; the touch layer is electrically connected with at least one signal line.
11. The touch display panel of claim 10, wherein the touch layer is co-layer with the first sub-layer.
12. A touch display device, the touch display device comprising:
a cover plate; and
the touch display panel according to any one of claims 1 to 11;
the base plate is positioned at one side of the touch display panel, which is away from the cover plate.
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| CN202011581778.8A CN112596631B (en) | 2020-12-28 | 2020-12-28 | Touch display panel and touch display device |
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| CN202011581778.8A CN112596631B (en) | 2020-12-28 | 2020-12-28 | Touch display panel and touch display device |
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| CN114020165B (en) * | 2021-10-25 | 2023-12-29 | 武汉华星光电技术有限公司 | Self-contained touch panel |
| CN114115598B (en) * | 2021-11-24 | 2024-03-22 | 武汉天马微电子有限公司 | Display panel and display device |
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| CN105068295A (en) * | 2015-09-11 | 2015-11-18 | 京东方科技集团股份有限公司 | Touch control display panel, manufacturing method thereof and touch control display device |
| KR20170036522A (en) * | 2015-09-24 | 2017-04-03 | 엘지디스플레이 주식회사 | Display device |
| CN107491225A (en) * | 2017-10-19 | 2017-12-19 | 业成科技（成都）有限公司 | Touch control display apparatus and its contact panel |
| CN109545085A (en) * | 2018-11-22 | 2019-03-29 | 武汉天马微电子有限公司 | Display panel and display device |
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| CN105425458A (en) * | 2016-01-04 | 2016-03-23 | 京东方科技集团股份有限公司 | Colored film substrate and embedded touch display device |
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| CN105068295A (en) * | 2015-09-11 | 2015-11-18 | 京东方科技集团股份有限公司 | Touch control display panel, manufacturing method thereof and touch control display device |
| KR20170036522A (en) * | 2015-09-24 | 2017-04-03 | 엘지디스플레이 주식회사 | Display device |
| CN107491225A (en) * | 2017-10-19 | 2017-12-19 | 业成科技（成都）有限公司 | Touch control display apparatus and its contact panel |
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