CN110794993B - Touch panel and touch display device using same - Google Patents
Touch panel and touch display device using same Download PDFInfo
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- CN110794993B CN110794993B CN201911106275.2A CN201911106275A CN110794993B CN 110794993 B CN110794993 B CN 110794993B CN 201911106275 A CN201911106275 A CN 201911106275A CN 110794993 B CN110794993 B CN 110794993B
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Abstract
The invention discloses a touch panel and a touch display device using the same. The first substrate is provided with a touch area and a wiring area, and the wiring area is arranged on the outer side of the touch area. The touch electrode layer is located on the first substrate and comprises a plurality of touch electrodes and a first connecting wire. The touch electrode is located in the touch area. The first connecting wire has a wire-routing portion, a contact portion and a connecting portion. The wiring portion is arranged corresponding to the wiring area, and the contact portion is arranged corresponding to the touch area and electrically connected to one of the touch electrodes. The connecting part is provided with a first end and a second end, the first end is connected with the wiring part, and the second end is connected with the contact part. The first end has a first width, the second end has a second width, and the first width is less than the second width.
Description
The application is a divisional application of Chinese patent application (application number: 201510083576.3, application date: 2015, 02, 16 and the name of the invention: a touch panel and a touch display device using the same).
Technical Field
The invention relates to a touch panel and a touch display device using the same.
Background
With the development of science and technology, touch display devices have been widely used in electronic devices such as mobile phones, tablet computers, and notebook computers. Such electronic devices are more lightweight and slim for users to carry. However, as the functions of electronic devices are becoming more diversified, the internal circuits are also becoming more complex, and phenomena such as signal interference and electrostatic discharge tend to occur. Therefore, how to effectively solve the above problems in a limited space configuration is an object of active development in the field.
Disclosure of Invention
The present invention is directed to a touch panel and a touch display device using the same, which can effectively solve the problem of mutual interference between signals of adjacent connecting lines or electrostatic discharge at the end points of the connecting lines due to electrostatic accumulation through the design of internal circuits.
According to the present invention, a touch panel is provided, which includes a first substrate and a touch electrode layer. The first substrate is provided with a touch area and a wiring area, and the wiring area is arranged on the outer side of the touch area. The touch electrode layer is located on the first substrate and includes a plurality of touch electrodes and a first connection line. The touch electrode is located in the touch area, and the first connecting line is provided with a wire routing part, a contact part and a connecting part. The wiring part is arranged corresponding to the wiring area, and the contact part is arranged on the hard touch area and is electrically connected to one of the touch electrodes of the touch area. The connecting part is provided with a first end and a second end, the first end is connected with the wiring part, and the second end is connected with the contact part. The first end has a first width, the second end has a second width, and the first width is less than the second width.
According to the present invention, a touch display device is provided, which includes a first substrate, an array layer, a display medium layer, a second substrate, a protection layer and a touch electrode layer. The touch electrode layer is disposed between the protective layer and the first substrate, and includes a plurality of touch electrodes and a first connection line. The touch electrode is located in a touch area. The first connecting wire has a wire-routing portion, a contact portion and a connecting portion. The wiring portion is arranged corresponding to a wiring area, and the wiring area is arranged on the outer side of the touch area. The contact portion is disposed corresponding to the touch area and electrically connected to one of the touch electrodes. The connecting part is provided with a first end and a second end, the first end is connected with the wiring part, and the second end is connected with the contact part. The first end has a first width, the second end has a second width, and the first width is less than the second width.
In order to better understand the above and other aspects of the present invention, the following detailed description is made with reference to the accompanying drawings, in which:
drawings
FIG. 1 is a top view of a touch panel according to an embodiment of the present invention;
FIG. 2A is an enlarged view of a portion of area A of FIG. 1;
FIG. 2B is a top view of a touch panel according to another embodiment of the present invention;
FIG. 2C is a top view of a touch panel according to another embodiment of the present invention;
fig. 3A to 3D are schematic cross-sectional views of a touch display device according to an embodiment of the invention;
fig. 4A to 4C are schematic cross-sectional views of a touch display device according to an embodiment of the invention.
Description of the symbols
1. 2, 3, 4, 5, 6, 7: touch control display device
100. 100', 100": touch panel
10. 31, 41: a first substrate
102: touch electrode layer
1021: a first touch electrode layer
1022: a second touch electrode layer
11: touch control area
12: routing area
20: touch electrode layer
21: first connecting wire
22: the second connecting line
201: routing part
202: contact part
203. 203', 203": connecting part
231: first end
232: second end
2031. 2033, 2035: the first side edge
2032. 2034, 2036: second side edge
32. 42: second base material
33. 36, 43: display medium layer
34: color filter substrate
35: third base material
500: covering layer
W1: first width
W2: second width
W3: third width
W4: fourth width
W5: the shortest distance between the contact part of the first connecting line and the second connecting line
W6: the shortest distance between the routing part of the first connecting line and the second connecting line
A: partial region
X, Y, Z: coordinate axes
Detailed Description
Embodiments of the present invention are described in detail below with reference to the attached drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts. It should be noted that the drawings have been simplified to clearly illustrate the embodiments, and the dimensional ratios on the drawings are not drawn to scale according to actual products, and therefore are not used to limit the scope of the present invention.
Fig. 1 is a top view of a touch panel 100 according to an embodiment of the invention. As shown, the touch panel 100 includes a first substrate 10 and a touch electrode layer 20. The first substrate 10 has a touch area 11 and a wiring area 12, and the wiring area 12 is disposed outside the touch area 11. In the present embodiment, the routing area 12 is disposed at the periphery of the touch area 11, for example. The touch electrode layer 20 is disposed on the first substrate 10 and includes a plurality of touch electrodes 111 and a first connecting line 21, and the touch electrodes 111 are disposed in the touch area 11.
Fig. 2A is a partially enlarged schematic view of the region a of fig. 1. As shown in fig. 1 and fig. 2A, the first connection line 21 of the touch panel 100 has a trace portion 201, a contact portion 202 and a connection portion 203. The wire trace 201 is disposed corresponding to the wire trace region 12, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one of the plurality of touch electrodes 111, the connection portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the wire trace 201, and the second end 232 is connected to the contact portion 202.
In the present embodiment, the first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2. For example, in fig. 2A, the trace portion 201 extends along a first direction (X direction), the first width W1 is, for example, a width of a portion of the first end 231 of the connection portion 203 perpendicular to the first direction (i.e., along the Y direction), the second width W2 is, for example, a width of a portion of the second end 232 of the connection portion 203 along the first direction (X direction), and the first width W1 is smaller than the second width W2, in more detail, a projection of the second end 232 on the first substrate 10 overlaps a portion of an edge of the touch electrode 111 connected to the first connection line 21.
In addition, the connecting portion 203 of the embodiment of the invention has a first side 2031 and a second side 2032, the first side 2031 is a curve having a first curvature, the second side 2032 can also be a curve having a second curvature, and the second curvature is different from the first curvature. Here, the first curvature is defined as an average curvature of each point on the first side 2031, and the second curvature is defined as an average curvature of each point on the second side 2032. For example, in the embodiment of the present invention, the first curvature may be larger than the second curvature, such that the width of the connection portion 203 gradually increases from the first end 231 to the second end 232.
As shown in fig. 2A, a width of the trace portion 201 of the first connection line 21 perpendicular to the first direction (i.e., along the Y direction) is substantially equal to the first width W1, a width of the contact portion 202 perpendicular to the first direction (i.e., along the Y direction) is a third width W3, a maximum width of the first connection line 21 perpendicular to the first direction (i.e., along the Y direction) is a fourth width W4, the first width W1 is smaller than the third width W3, and the third width W3 is smaller than the fourth width W4.
In the present embodiment, the touch electrode layer 20 of the touch panel 100 further includes a second connection line 22, and the second connection line 22 is also disposed on the first substrate 10 and adjacent to the first connection line 21. In addition, the structure of the second connection line 22 is similar to that of the first connection line 21, and is not described in detail herein. As shown in fig. 2A, the shortest distance W5 between the contact portion 202 of the first connection line 21 and the second connection line 22 is greater than the shortest distance W6 between the routing portion 201 and the second connection line 22.
Since the two ends (i.e., the first end 231 and the second end 232) of the connection portion 203 have different first widths W1 and second widths W2, and the first width W1 is smaller than the second width W2, the junction impedance is smaller when the signal is transmitted from the trace portion 201 of the first connection line 21 to the contact portion 202 through the connection portion 203. In addition, the first side 2031 and the second side 2032 of the connection portion 203 are curved, so that electrostatic discharge (ESD) caused by electrostatic deposition can be effectively prevented.
Furthermore, the shortest distance W5 between the contact portion 202 of the first connection line 21 and the second connection line 22 is greater than the shortest distance W6 between the wire-routing portion 201 and the second connection line 22, so that the adjacent connection lines (i.e., the second connection lines 22) can be effectively prevented from causing signal interference with the contact portion 202 of the first connection line 21.
Fig. 2B is a top view of a touch panel 100' according to another embodiment of the invention. Similar to the structure of fig. 2A, the touch electrode layer of the touch panel 100 'includes a first connection line 21, and the first connection line 21 has a trace portion 201, a contact portion 202 and a connection portion 203'. The connecting portion 203' has a first end 231 and a second end 232, the first end 231 is connected to the routing portion 201, and the second end 232 is connected to the contact portion 202.
In the embodiment of fig. 2B, the first end 231 of the connecting portion 203' has a first width W1, the second end 232 has a second width W2, and the first width W1 is smaller than the second width W2.
The connecting portion 203' of the embodiment of the invention has a first side 2033 and a second side 2034, which is different from the embodiment of fig. 2A in that the first side 2033 is a curve having a first curvature, and the second side 2034 is a folding line. Similarly, a first curvature is defined as the average curvature of each point on the first side 2033. Other parts similar to the touch panel 100 of fig. 2A are not repeated herein. It should be noted that, in another embodiment, the second side edge 2034 can be a straight line.
Fig. 2C is a top view of the touch panel 100 ″ according to another embodiment of the invention. Similar to the structure of fig. 2A, the touch electrode layer of the touch panel 100 ″ includes a first connection line 21, and the first connection line 21 has a routing portion 201, a contact portion 202 and a connection portion 203 ″. The connecting portion 203 ″ has a first end 231 and a second end 232, the first end 231 is connected to the routing portion 201, and the second end 232 is connected to the contact portion 202.
In the embodiment of fig. 2C, the first end 231 of the connecting portion 203 ″ has a first width W1, the second end 232 has a second width W2, and the first width W1 is smaller than the second width W2.
The connecting portion 203 ″ of the embodiment of the present invention has a first side 2035 and a second side 2036, which is different from the embodiment of fig. 2A in that the first side 2035 is a straight line and the second side 2036 is a broken line.
In the embodiments shown in fig. 2A to 2C, the contact portion 202 is illustrated as a rectangle, but the invention is not limited thereto, and the shape of the contact portion 202 can be determined according to the configuration of the touch panel itself. In addition, when the contact portion 202 is rectangular, four corners of the contact portion 202 can be rounded to prevent electrostatic deposition.
In addition, the connecting lines (e.g., the first connecting lines 21 and the second connecting lines 22) on the touch electrode layer 20 can be formed by ink-jet, screen printing, or yellow light.
The touch panel of the above embodiments can be applied to different touch display devices. Fig. 3A to 3D respectively show cross-sectional views of touch display devices 1 to 4 according to embodiments of the invention.
As shown in fig. 3A, the touch display device 1 is, for example, an external touch display device, and includes a first substrate 31, an array layer (not shown), a display medium layer 33, a second substrate 32, a passivation layer 500, and a touch electrode layer 102. The array layer is located on the first substrate 31, the display medium layer 33 is located on the array layer, the second substrate 32 is located on the display medium layer 33, the protection layer 500 is located on the second substrate 32, and the touch electrode layer 102 is disposed between the protection layer 500 and the first substrate 31. In the present embodiment, the touch electrode layer 102 is disposed between the passivation layer 500 and the second substrate 32.
The touch electrode layer 102 of the embodiment of the invention can be the touch electrode layer 20 shown in fig. 1 and fig. 2A, and includes a plurality of touch electrodes 111 and a first connecting line 21, where the touch electrodes 111 are located in the touch area 11. The first connecting line 21 has a routing portion 201, a contact portion 202 and a connecting portion 203. The wire portion 201 is disposed corresponding to the wire portion 12 outside the touch region 11, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one touch electrode 111 of the touch region 11, the connection portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the wire portion 201, and the second end 232 is connected to the contact portion 202. The first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2. In one embodiment, the first width W1 may be less than the second width W2. The touch electrode layer 102 of the embodiment of the invention may include two electrodes Tx and Rx arranged in different directions, so the touch electrode layer 102 may be a laminated Tx and Rx or a coplanar Tx and Rx.
In the embodiment, the protection layer 500 may be, for example, a glass cover layer, the first substrate 31 may be, for example, an array substrate (array substrate), the second substrate 32 may be, for example, a color filter substrate (color filter substrate), and the display medium layer 33 may be, for example, a liquid crystal layer. However, the present invention is not limited thereto.
As shown in fig. 3B, the touch display device 2 is, for example, an external touch display device, and includes a first substrate 31, an array layer (not shown), a display medium layer 33, a second substrate 32, a protective layer 500, a first touch electrode layer 1021, and a second touch electrode layer 1022. The array layer is located on the first substrate 31, the display medium layer 33 is located on the array layer, the second substrate 32 is located on the display medium layer 33, and the protection layer 500 is located on the second substrate 32. In the embodiment, the first touch electrode layer 1021 is disposed between the second substrate 32 and the display medium layer 33, the second touch electrode layer 1022 is disposed between the second substrate 32 and the passivation layer 500, and the second substrate 32 is a thin film.
The first touch electrode layer 1021 and the second touch electrode layer 1022 in the embodiment of the invention can be the touch electrode layer 20 shown in fig. 1 and fig. 2A, which includes a plurality of touch electrodes 111 and a first connection line 21, wherein the touch electrodes 111 are located in the touch region 11. The first connecting line 21 has a routing portion 201, a contact portion 202 and a connecting portion 203. The wire portion 201 is disposed corresponding to the wire portion 12 outside the touch region 11, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one touch electrode 111 of the touch region 11, the connection portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the wire portion 201, and the second end 232 is connected to the contact portion 202. The first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2. In one embodiment, the first width W1 may be less than the second width W2. The first touch electrode layer 1021 and the second touch electrode layer 1022 in the embodiment of the invention can respectively represent two electrodes Tx and Rx arranged in different directions.
In this embodiment, the touch display device 2 may further include a color filter substrate 34, and the color filter substrate 34 may be disposed between the display medium layer 33 and the first touch electrode 1021.
As shown in fig. 3C, the touch display device 3 is, for example, an external touch display device, and includes a first substrate 31, an array layer (not shown), a display medium layer 33, a second substrate 32, a protective layer 500, a first touch electrode layer 1021, and a second touch electrode layer 1022. The array layer is located on the first substrate 31, the display medium layer 33 is located on the array layer, the second substrate 32 is located on the display medium layer 33, the protection layer 500 is located on the second substrate 32, the first touch electrode layer is disposed 1021 between the second substrate 32 and the display medium layer 33, the second touch electrode layer 1022 is disposed between the second substrate 32 and the protection layer 500, and the second substrate 32 is a thin film.
In this embodiment, the touch display device 3 further includes a third substrate 35, the third substrate 35 is disposed between the first touch electrode layer 1021 and the display medium layer 33, and the third substrate 35 may be a thin film similar to the second substrate 32. In addition, the first touch electrode layer 1021 and the second touch electrode layer 1022 may respectively include two touch electrodes Tx and Rx arranged in different directions.
The first touch electrode layer 1021 and the second touch electrode layer 1022 in the embodiment of the invention can be similar to the touch electrode layer 20 shown in fig. 1 and fig. 2A, and include a plurality of touch electrodes 111 and a first connection line 21, where the touch electrodes 111 are located in the touch region 11. The first connecting line 21 has a routing portion 201, a contact portion 202 and a connecting portion 203. The trace portion 201 is disposed corresponding to the trace portion 12 outside the touch region 11, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one touch electrode 111 of the touch region 11, the connecting portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the trace portion 201, and the second end 232 is connected to the contact portion 202. The first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2, in an embodiment, the first width W1 may be smaller than the second width W2.
In addition, the touch display device 3 may further include a color filter substrate 34, and the color filter substrate 34 is disposed between the display medium layer 33 and the third substrate 35.
As shown in fig. 3D, the touch display device 4 is, for example, an in-cell touch display device, and includes a first substrate 31, an array layer (not shown), a display medium layer 36, a second substrate 32, a passivation layer 500, and a touch electrode layer 102. The array layer is located on the first substrate 31, the display medium layer 36 is located on the array layer, the second substrate 32 is located on the display medium layer 36, the protection layer 500 is located on the second substrate 32, and the touch electrode layer 102 is disposed between the protection layer 500 and the first substrate 31. In the present embodiment, the touch electrode layer 102 is disposed between the second substrate 32 and the display medium layer 36.
The touch electrode layer 102 of the embodiment of the invention can be the touch electrode layer 20 shown in fig. 1 and fig. 2A, and includes a plurality of touch electrodes 111 and a first connecting line 21, where the touch electrodes 111 are located in the touch area 11. The first connecting line 21 has a routing portion 201, a contact portion 202 and a connecting portion 203. The wire portion 201 is disposed corresponding to the wire portion 12 outside the touch region 11, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one touch electrode 111 of the touch region 11, the connection portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the wire portion 201, and the second end 232 is connected to the contact portion 202. The first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2, in an embodiment, the first width W1 may be smaller than the second width W2.
In the present embodiment, the display medium layer 36 can be, for example, an Organic Light-Emitting Diode (OLED) layer, and the touch electrode layer 102 can include two electrodes Tx and Rx arranged in different directions, so that the touch electrode layer 102 can be a laminated Tx and Rx or a coplanar Tx and Rx.
Fig. 4A to 4C respectively show cross-sectional views of touch display devices 5 to 7 according to embodiments of the invention. As shown in fig. 4A, the touch display device 5 is, for example, an in-cell touch display device, and includes a first substrate 41, an array layer (not shown), a display medium layer 43, a second substrate 42, a passivation layer 500, and a touch electrode layer 102. The array layer is located on the first substrate 41, the display medium layer 43 is located on the array layer, the second substrate 42 is located on the display medium layer 43, the protection layer 500 is located on the second substrate 42, and the touch electrode layer 102 is disposed between the display medium layer 43 and the first substrate 41.
The touch electrode layer 102 of the embodiment of the invention can be the touch electrode layer 20 shown in fig. 1 and fig. 2A, and includes a plurality of touch electrodes 111 and a first connecting line 21, where the touch electrodes 111 are located in the touch area 11. The first connecting line 21 has a routing portion 201, a contact portion 202 and a connecting portion 203. The trace portion 201 is disposed corresponding to the trace portion 12 outside the touch region 11, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one touch electrode 111 of the touch region 11, the connecting portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the trace portion 201, and the second end 232 is connected to the contact portion 202. The first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2. In one embodiment, the first width W1 may be smaller than the second width W2, for example.
In the present embodiment, the passivation layer 500 may be a glass cover layer, the first substrate 41 may be an array substrate, and the display medium layer 43 may be a liquid crystal layer. The touch electrode layer 102 of the embodiment of the invention may include two electrodes Tx and Rx arranged in different directions, so the touch electrode layer 102 may be a laminated Tx and Rx or a coplanar Tx and Rx.
As shown in fig. 4B, the touch display device 6 is, for example, an in-cell touch display device, and includes a first substrate 41, an array layer (not shown), a display medium layer 43, a second substrate 42, a passivation layer 500, and a touch electrode layer 102. The array layer is located on the first substrate 41, the display medium layer 43 is located on the array layer, the second substrate 42 is located on the display medium layer 43, the protection layer 500 is located on the second substrate 42, and the touch electrode layer 102 is disposed between the protection layer 500 and the first substrate 41. In the present embodiment, the touch electrode layer 102 is disposed between the passivation layer 500 and the second substrate 42.
The touch electrode layer 102 of the embodiment of the invention can be the touch electrode layer 20 shown in fig. 1 and fig. 2A, and includes a plurality of touch electrodes 111 and a first connection line 21, where the touch electrodes 111 are located in the touch area 11. The first connecting line 21 has a routing portion 201, a contact portion 202 and a connecting portion 203. The wire portion 201 is disposed corresponding to the wire portion 12 outside the touch region 11, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one touch electrode 111 of the touch region 11, the connection portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the wire portion 201, and the second end 232 is connected to the contact portion 202. The first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2. In one embodiment, the first width W1 may be smaller than the second width W2, for example.
In the present embodiment, the second substrate 42 may be a color filter substrate, for example, and the display medium layer 43 may be a liquid crystal layer, for example.
As shown in fig. 4C, the touch display device 7 is, for example, an in-cell touch display device, and includes a first substrate 41, an array layer (not shown), a display medium layer 43, a second substrate 42, a passivation layer 500, a first touch electrode layer 1021, and a second touch electrode layer 1022. The array layer is located on the first substrate 41, the display medium layer 43 is located on the array layer, the second substrate 42 is located on the display medium layer 43, and the protection layer 500 is located on the second substrate 42. In the embodiment, the first touch electrode layer 1021 is disposed between the passivation layer 500 and the second substrate 42, and the second touch electrode layer 1022 is disposed between the display medium layer 43 and the first substrate 41.
As shown in fig. 1 and 2A, the first touch electrode layer 1021 and the second touch electrode layer 1022 of the embodiment of the invention may include a plurality of touch electrodes 111 and a first connection line 21, where the touch electrodes 111 are located in the touch region 11. The first connecting line 21 has a routing portion 201, a contact portion 202 and a connecting portion 203. The wire portion 201 is disposed corresponding to the wire portion 12 outside the touch region 11, the contact portion 202 is disposed corresponding to the touch region 11 and electrically connected to at least one touch electrode 111 of the touch region 11, the connection portion 203 has a first end 231 and a second end 232, the first end 231 is connected to the wire portion 201, and the second end 232 is connected to the contact portion 202. The first end 231 of the connecting portion 203 has a first width W1, the second end 232 has a second width W2, and the first width W1 is different from the second width W2. In one embodiment, the first width W1 may be less than the second width W2. The first touch electrode layer 1021 and the second touch electrode layer 1022 in the embodiment of the invention can be two electrodes Tx and Rx arranged in different directions.
In the present embodiment, the first substrate 41 of the touch display device 7 may be, for example, an array substrate, and the second substrate 42 may be, for example, a color filter substrate.
Although the touch display devices 1 to 7 include the touch panel 100 shown in fig. 1 and 2A, the invention is not limited thereto. In contrast, the structure of the touch panel 100' of fig. 2B or the structure of the touch panel 100 ″ of fig. 2C may also be applied to the touch display devices 1 to 7.
In addition, although not shown in the drawings, the touch display devices 1 to 7 may also include a color filter layer, and the color filter layer may be located between the display medium layers 33 and 43 and the second substrate 32 and 42, or between the array layer and the display medium layers 33 and 43.
In the embodiments, since the connection portions of the touch panel have different widths, when a signal is transmitted from the trace portion of the connection line to the contact portion through the connection portion, the junction impedance is low. In addition, the first side and the second side of the connecting part can be curved, so that the electrostatic discharge phenomenon caused by electrostatic accumulation can be effectively prevented.
While the invention is disclosed in conjunction with the above embodiments, it is not intended to limit the invention thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the definition of the appended claims.
Claims (9)
1. A touch panel, comprising:
the first substrate is provided with a touch area and a wiring area, and the wiring area is arranged on the outer side of the touch area; and
a touch electrode layer on the first substrate, the touch electrode layer including a plurality of touch electrodes and first connection lines, the touch electrodes being located in the touch area, the first connection lines having:
a routing part which is arranged corresponding to the routing area and extends along a first direction;
a contact portion disposed corresponding to the touch area and electrically connected to one of the touch electrodes, wherein a projection of the one of the touch electrodes on the first substrate overlaps a projection of the contact portion on the first substrate; and
a connecting part which is provided with a first end and a second end, wherein the first end is connected with the wiring part, the second end is connected with the contact part, and the projection of the second end on the first substrate is overlapped with part of the edge of one of the touch control electrodes;
wherein, the part of the first end perpendicular to the first direction has a first width, the part of the second end along the first direction has a second width, and the first width is smaller than the second width;
wherein, along the first direction, the projection length of one of the touch electrodes on the first substrate is longer than the projection length of the contact part on the first substrate,
wherein the touch electrode layer further comprises: and the second connecting line is adjacent to the first connecting line, wherein the shortest distance between the contact part of the first connecting line and the second connecting line is greater than the shortest distance between the walking part of the first connecting line and the second connecting line.
2. The touch panel of claim 1, wherein the contact portion has at least one rounded corner.
3. The touch panel of claim 1, wherein the connecting portion has a first side, and the first side is a curve and has a first curvature.
4. The touch panel as recited in claim 3, wherein the connecting portion has a second side, the second side being a curve and having a second curvature, the second curvature being different from the first curvature.
5. The touch panel of claim 1, wherein the connecting portion has a first side edge, and the first side edge is a straight line or a folding line.
6. The touch panel of claim 1, wherein a maximum width of the contact portion perpendicular to the first direction is a third width, a maximum width of the first connecting line perpendicular to the first direction is a fourth width, the first width is smaller than the third width, and the third width is smaller than the fourth width.
7. The touch panel of claim 1, further comprising a display medium layer on the first substrate, a second substrate on the display medium layer, and a protective layer on the second substrate, wherein the touch electrode layer is disposed between the protective layer and the second substrate, or between the second substrate and the display medium layer, or between the display medium layer and the first substrate.
8. The touch panel of claim 7, wherein the touch electrode layer comprises a first touch electrode layer and a second touch electrode layer, the first touch electrode layer is disposed between the second substrate and the display medium layer, the second touch electrode layer is disposed between the second substrate and the protective layer, and the second substrate is a thin film.
9. The touch panel of claim 8, further comprising: and the third substrate is arranged between the first touch electrode layer and the display medium layer and is a thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106275.2A CN110794993B (en) | 2015-02-16 | 2015-02-16 | Touch panel and touch display device using same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911106275.2A CN110794993B (en) | 2015-02-16 | 2015-02-16 | Touch panel and touch display device using same |
| CN201510083576.3A CN105988622B (en) | 2015-02-16 | 2015-02-16 | Touch panel and touch display device using same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510083576.3A Division CN105988622B (en) | 2015-02-16 | 2015-02-16 | Touch panel and touch display device using same |
Publications (2)
| Publication Number | Publication Date |
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| CN110794993A CN110794993A (en) | 2020-02-14 |
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| CN110794993A (en) | 2020-02-14 |
| CN105988622A (en) | 2016-10-05 |
| CN105988622B (en) | 2019-12-10 |
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