TW201947379A - Touch panel with narrow border - Google Patents

Abstract

A touch panel is provided and includes a plurality of electrode strip sets, a plurality of transparent traces and a plurality of electrode series sets. The electrode strip sets include a first electrode strip set and a second electrode strip, and the first electrode strip set is disposed between the second electrode strip and a pad region. The transparent traces are disposed in a transparent region, the transparent traces electrically connected to the first electrode strip set and the second electrode strip set include a winding segment respectively, and a length of the winding segment electrically connected to the first electrode strip set is longer than a length of the winding segment electrically connected to the second electrode strip set. The electrode series sets cross the electrode strip sets.

Description

Touch panel with narrow bezel

The invention relates to a touch panel, in particular to a mutual-capacitive touch panel with a narrow frame.

The touch display device composed of a display and a touch panel has the characteristics of human-computer interaction because it can simultaneously realize touch and display functions, and has been widely used in smart phones and satellite navigation systems (GPS navigator system), tablet PC, and laptop PC. Among them, the mutual capacitive touch panel has become a mainstream touch technology currently used in the industry due to its advantages such as high accuracy, multi-touch, high durability, and high touch resolution.

Mutual-capacitive touch technology detects when a touch object is near or in contact with a touch unit on a touch panel, the static electricity on the touch object and the coupling capacitance change generated by the touch unit, thereby determining a touch event. In terms of structural design, the mutual capacitance touch technology can be mainly divided into two types: a single-layer electrode structure and a double-layer electrode structure. Since the double-layer electrode structure is simpler in structure design and control algorithm than the single-layer electrode structure, the double-layer electrode structure is generally used in middle-to-high-end consumer electronics products. In the design of the traditional double-layer electrode structure, the induction series and the driving series extend along the horizontal direction and the vertical direction, respectively, and the wires connecting the induction series must be connected to the induction series from both sides of the induction series. As such, the range of the peripheral areas on both sides of the touch panel horizontally is limited by the number of wires and cannot be reduced. Therefore, how to continuously reduce the width of the bezel of the touch panel, or even to achieve no bezel, is still a direction for those skilled in the art.

One of the objectives of the present invention is to provide a touch panel to reduce the width of the frame and thereby improve the visual effect.

To achieve the above object, the present invention discloses a touch panel having a light-transmitting area and an opaque area. The opaque area includes a pad area and is located on a first side of the light-transmitting area. The touch panel includes a plurality of electrodes. A group, a plurality of first transparent wires, and a plurality of electrode series. The electrode strip groups are respectively arranged in the light-transmitting area along the first direction, wherein the electrode strip groups include the first electrode strip group and the second electrode strip group, and the first electrode strip group is located between the second electrode strip group and the pad area. between. The first transparent wires are disposed in the light-transmitting area. Each first transparent wire includes a resistance adjustment portion, and each resistance adjustment portion is respectively connected to one end of one of the electrode strip groups and is electrically connected to the first electrode strip group and the first electrode strip group. The resistance adjustment sections of the two electrode strip groups each include a zigzag line segment, wherein the length of the zigzag line segment electrically connected to the first electrode strip group is longer than the zigzag line segment electrically connected to the second electrode strip group. The electrode series are disposed in the light-transmitting area along a second direction different from the first direction, and the electrode series are staggered with the electrode bar groups.

To achieve the above object, the present invention discloses a touch panel having a light-transmitting region and an opaque region. The touch panel includes a plurality of electrode strip groups, a plurality of electrode strip groups, a plurality of first transparent wires, and a plurality of strips. Electrode tandem group. The electrode strip groups are respectively arranged in the light-transmitting area along the first direction, wherein the electrode strip groups include the first electrode strip group and the second electrode strip group, and the first electrode strip group is located between the second electrode strip group and the pad area. between. The first transparent wires are disposed in the light-transmitting area, and each of the first transparent wires is connected to one end of one of the electrode bar groups, wherein each of the first transparent wires further includes a lead portion, and the first transparent wire is arranged along a first line different from the first direction. Two directions extend into the opaque area, and one of the lead portions includes a first portion and a second portion, and a width of the first portion in the first direction is different from a width of the second portion in the first direction. The electrode series are disposed in the light-transmitting area along the second direction, and the electrode series and the electrode strip group are staggered.

To achieve the above object, the present invention discloses a touch panel having a light-transmitting area and an opaque area. The opaque area includes a pad area and is located on a first side of the light-transmitting area. The touch panel includes a plurality of electrodes. A group, a plurality of first transparent wires, a plurality of first opaque wires, a plurality of electrode series, and a plurality of second opaque wires. The electrode strip groups are respectively arranged in the light-transmitting area along the first direction, wherein the electrode strip groups include the first electrode strip group and the second electrode strip group, and the first electrode strip group is located between the second electrode strip group and the pad area. between. The first transparent wires are disposed in the light-transmitting area, and each of the first transparent wires is respectively connected to one end of one of the electrode bar groups. The first opaque wire is disposed in the opaque area on the first side of the light-transmitting area, and each first opaque wire is connected to one end of one of the first transparent wires, respectively, wherein each of the first opaque wires and the corresponding first The transparent wire has a first connection area, and the first connection area is arranged along the first direction. The electrode series are disposed in the light-transmitting area along the second direction, and the electrode series and the electrode strip group are staggered. The second opaque wire is disposed in the opaque area on the first side of the light-transmissive area. Each electrode string group includes a first electrode string and a second electrode string. Each second opaque wire is electrically connected to one of the first electrode string and the second electrode string. Each second opaque wire and The corresponding first electrode series or the corresponding second electrode series has a second connection region, and one of the second connection regions overlaps one of the first connection regions.

In the touch panel of the present invention, a transparent conductive wire formed of a transparent conductive material is used to electrically connect the electrode strip groups, so that the transparent conductive wire can be disposed in the light-transmitting area, so the width of the light-transmitting area can be increased. In addition, the number of opaque wires disposed on the left and right sides of the light-transmitting region can be reduced, thereby reducing the width of the light-transmitting region and reducing the width of the frame of the touch panel. In addition, since the transparent conductive wires made of transparent conductive materials are likely to have significantly different equivalent resistances due to different lengths, the equivalent resistances of the transparent conductive wires are significantly different. Therefore, in the touch panel of the present invention, The length of the zigzag line segment of the transparent lead connected to the electrode strip group closer to the first side and / or the second side of the light-transmitting area is designed to be longer than the first side and / or the second side of the transparent-area connection The length of the zigzag segment of the transparent wire of the electrode strip group can make up for the difference in the equivalent resistance of the lead portion of each transparent wire, thereby uniformizing the equivalent resistance of each transparent wire.

In order to enable those skilled in the art to further understand the present invention, the embodiments of the present invention are enumerated below, and the constitutional content of the present invention and the desired effects are described in detail with reference to the accompanying drawings. It should be noted that the drawings are simplified diagrams. Therefore, only the elements and combinations related to the present invention are shown to provide a clearer description of the basic architecture of the present invention, and the actual elements and layout may be more complicated. In addition, for convenience of explanation, the elements shown in the drawings of the present invention are not drawn in proportion to the actual number, shape, and size, and the detailed proportions can be adjusted according to design requirements.

Please refer to FIG. 1, which illustrates a schematic diagram of a touch display device using the touch panel of the present invention. As shown in FIG. 1, the touch panel TP of the present invention can be applied to a display device DD to form a touch display device TD. The touch panel TP can be disposed on the display surface DS of the display device DD to provide a touch sensing function. The touch panel TP may have a transparent region TR and an opaque region OR. The transparent region TR may allow light to pass through. Therefore, the touch panel TP corresponds to the display region DS of the display device DD to allow a user to pass through the transparent region TR. The touch panel TP in the mobile device sees the picture displayed by the display device DD, and the non-light-transmitting area OR blocks light from penetrating. Therefore, the touch-control panel TP in the non-light-transmitting area OR can be used to shield the touch panel TP. Opaque lines and peripheral lines and frames that are not used for displaying pictures in the display device DD. In an embodiment, the opaque region OR may surround the transparent region TR, but the present invention is not limited thereto. In another embodiment, when both sides of the touch panel TP (for example, the left and right sides) reach a borderless frame, the opaque region OR may be located only on the first side S1 (for example, the upper side) and the second side of the transparent region TR. At least one of the sides S2 (for example, the lower side).

The touch panel TP may include, for example, a substrate Sub, a shielding layer SL, and a touch layer TL. The shielding layer SL is disposed on the substrate Sub to define an opaque region OR, and the shielding layer SL has an opening to define light transmission. District TR. The substrate Sub may be used as the outermost substrate of the touch display device TD, and may include a rigid substrate or a flexible substrate, such as a glass substrate, a reinforced glass substrate, a quartz substrate, a sapphire substrate, a hard cover lens, a plastic substrate, and a flexible cover. Plate, flexible plastic substrate or thin glass substrate. The touch layer TL is disposed on the substrate Sub and has a function of touch sensing. The touch layer TL here may include a first transparent conductive layer and a second transparent conductive layer to achieve a touch sensing function and an opaque conductive layer electrically connected to the first transparent conductive layer and the second transparent conductive layer, but is not limited thereto. In this embodiment, the touch layer TL may be, for example, a thin film formed with a touch element, and one surface thereof may be adhered to the substrate Sub through the adhesive layer AL1, and the other surface may be adhered to the other substrate through the other adhesive layer AL2. The display device DD is, but not limited to. Those skilled in the art should know that the touch layer TL can also be directly formed on the substrate Sub or the display device DD, which will not be repeated here. The application of the touch panel TP of the present invention is not limited to that shown in FIG. 1, but can also be applied to other types of devices.

Please refer to FIG. 2, which illustrates a schematic top view of a touch panel according to a first embodiment of the present invention. As shown in FIG. 2, the light-transmitting area TR may include a touch area RT and two peripheral areas RP. A part of the touch panel TP1 located in the touch area RT has a touch sensing function, and Some of them have no touch sensing function, and the peripheral region RP is located on both sides of the touch region RT, and is adjacent to the third side S3 (for example, the left side) and the fourth side S4 (for example, the right side) of the light transmission region TR, respectively. The opaque region OR may include a pad region PR, which is located on the first side S1 of the light-transmissive region TR, and is used to set a pad BP. The pad BP can be used to electrically connect and control the driving element of the touch panel TP1.

In this embodiment, the touch panel TP1 is located in the touch area RT, and a part having a touch sensing function may include a plurality of electrode strip groups ELM, a plurality of first transparent wires TT1, and a plurality of electrode string groups ESS. It is disposed on the substrate Sub in the light-transmitting region TR. Each electrode strip group ELM extends along the first direction D1, and each electrode string group ESS extends along a second direction D2 different from the first direction D1, so that each electrode string group ESS can communicate with each electrode strip group ELM. It is insulated and staggered to generate capacitive coupling, so that the touch panel TP1 has the function of touch sensing. In order to make the electrode strip group ELM and the electrode tandem group ESS transparent, the electrode strip group ELM may be formed of a first transparent conductive layer, and the electrode string group ESS may be formed of a second transparent conductive layer. For example, the first transparent conductive layer may be located between the substrate Sub and the second transparent conductive layer. The first transparent conductive layer and the second transparent conductive layer may include, for example, transparent conductive materials, such as indium tin oxide (ITO), indium zinc oxide (IZO), and antimony tin oxide (antimony tin oxide, ATO), antimony zinc oxide (AZO), nano silver or other suitable transparent conductive materials. For example, the first transparent conductive layer and the second transparent conductive layer may be respectively formed on two different films, and the two are bonded through an adhesive layer, and the first transparent conductive layer is electrically insulated through the film and the adhesive layer as an insulating layer. The conductive layer and the second transparent conductive layer are not limited thereto. In another embodiment, the insulating layer may be an insulating layer formed by a deposition process, so that the first transparent conductive layer, the insulating layer and the second transparent conductive layer may be sequentially deposited on the same film surface. Alternatively, the first transparent conductive layer and the second transparent conductive layer are respectively deposited on different surfaces of the thin film, thereby using the thin film as an insulating layer.

Each first transparent wire TT1 is located in the peripheral region RP, and is connected to one end of an electrode bar group ELM, for electrically connecting each electrode bar group ELM to a corresponding pad BP. The first transparent wire TT1 and the electrode bar group ELM in this embodiment may be formed of the same first transparent conductive layer, but are not limited thereto. In another embodiment, the first transparent wire TT1 and the electrode bar group ELM may also be formed of different transparent conductive layers. Since each first transparent wire TT1 is formed of a transparent conductive material, it does not affect the display of the screen, and can be located in the light-transmitting region TR. That is, the first transparent wire TT1 is located on the display of the display device DD in the top view direction Z. District DS. In addition, since the first transparent wire TT1 for electrically connecting each electrode strip group ELM to the pad BP can be disposed in the light-transmitting region TR, the third side S3 (for example, the left side) and the fourth The number of opaque wires in the opaque region OR of the side S4 (for example, the right side) can be reduced, thereby reducing the width of the opaque region OR, thereby reducing the frame width of the touch panel TP1 (the left and right sides of the transparent region TR). Width of the opaque region OR).

In this embodiment, the electrode strip group ELM is divided into an upper part PT and a lower part PB. The first transparent wire TT1 connected to each electrode strip group ELM in the upper part PT extends from one end of the corresponding electrode strip group ELM to the first side S1 of the light transmitting region TR; and connected to each electrode strip group ELM in the lower part PB. The first transparent conductive wire TT1 extends from one end of the corresponding electrode strip group ELM to the second side S2 of the light transmitting region TR relative to the first side S1. Accordingly, each first transparent conductive wire TT1 extends to the opaque region OR with the shortest length, and further has a lower equivalent resistance. Taking 14 electrode strip groups ELM as an example, the eight electrode strip groups ELM from the first side S1 of the light-transmitting region TR can be regarded as the upper part PT, and the remaining 6 electrode strip groups ELM are the lower part PB. But it is not limited to this. Please refer to Figures 3 and 4. FIG. 3 shows a schematic top view of a transparent wire TT1 connected to the upper part of the PT electrode bar group ELM according to the first embodiment of the present invention, and FIG. 4 shows a transparent wire connected to the lower part of the PB electrode bar group ELM according to the first embodiment of the present invention Top view of TT1. As shown in FIGS. 3 and 4, for example, the electrode strip group ELM may include a first electrode strip group ELM1, a second electrode strip group ELM2, a third electrode strip group ELM3, and a fourth electrode strip. Group ELM4, the first electrode strip group ELM1 and the second electrode strip group ELM2 are located in the upper part PT, and the first electrode strip group ELM1 is located between the second electrode strip group ELM2 and the pad area PR, that is, the first electrode strip group ELM1 The first electrode strip group ELM2 is adjacent to the pad region PR, and the first transparent wire TT1 connected to the first electrode strip group ELM1 and the second electrode strip group ELM2 extends to the first side S1 of the light transmission region TR. The third electrode strip group ELM3 and the fourth electrode strip group ELM4 are located in the lower part PB. The third electrode strip group ELM3 is closer to the second side S2 of the light transmission region TR than the first side S1, and the fourth electrode strip group ELM4 is located at the first Between the three electrode strip group ELM3 and the second side S2 of the light-transmitting region TR, and the first transparent wire TT1 connected to the third electrode strip group ELM3 and the fourth electrode strip group ELM4 extends to the second side of the light-transmitting region TR S2.

Each of the first transparent wires TT1 may include a lead portion P1 located in the light-transmitting region TR. Each lead portion P1 extends from one end near the corresponding electrode strip group ELM into the opaque region OR, and most of the lead portions P1 extend along the second direction D2. In order to electrically connect the first transparent wires TT1 to the electrode bar groups ELM at different positions, the lengths of the lead portions P1 need to be different from each other when the widths of the lead portions P1 are the same. Compared with metal materials, the transparent conductive material has a significantly higher resistivity, and the lead portion P1 composed of the transparent conductive material is likely to have significantly different equivalent resistances due to different lengths. In order to equalize the equivalent resistance of each of the first transparent conductive wires TT1, each of the first transparent conductive wires TT1 in this embodiment may further include a resistance adjustment portion P2, and the length of each resistance adjustment portion P2 is used to compensate for the lead portions P1, etc. Effective resistance difference. The resistance adjustment portion P2 of this embodiment is connected between one end of the lead portion P1 and one end of the corresponding electrode strip group ELM, but it is not limited thereto.

For the first transparent wire TT1 connected to the electrode strip group ELM of the upper part PT, since it extends to the first side S1 of the light transmitting region TR provided with the pad region PR, the connection is closer to the pad region PR The length of the lead portion P1 of the electrode strip group ELM will be shorter than the length of the lead portion P1 of the first transparent wire TT1 connected to the electrode strip group ELM far from the pad region PR. In order to compensate for the difference in equivalent resistance between the plurality of lead portions P1 of the upper portion PT, the length of the resistance adjustment portion P2 of the electrode strip group ELM connected closer to the pad region PR is longer than that of the electrode strip group connected farther from the pad region PR. The length of the resistance adjustment portion P2 of the ELM is long. The first transparent wire TT1 connected to the electrode strip group ELM of the lower part PB is connected to the electrode closer to the second side S2 of the light-transmitting region TR because it is the second side S2 extending to the light-transmitting region TR. The length of the lead portion P1 of the strip group ELM is shorter than the length of the lead portion P1 of the first transparent wire TT1 connected to the electrode strip group ELM that is far from the second side S2 of the light-transmitting region TR. In order to compensate for the difference in equivalent resistance between the plurality of lead portions P1 of the lower portion PB, the length of the resistance adjustment portion P2 of the electrode strip group ELM connected to the second side S2 of the light-transmitting region TR is shorter than the distance of the second light-transmitting region TR. The length of the resistance adjustment portion P2 of the electrode strip group ELM whose side S2 is far away is long. Thereby, the sum of the equivalent resistances of the lead portion P1 and the resistance adjustment portion P2 corresponding to the first first transparent conductive wire TT1 can be made close to the same, so as to reduce the difference in the equivalent resistance of each first transparent conductive wire TT1. That is, the equivalent resistance of each first transparent wire TT1 can be uniformized, thereby reducing the phenomenon of non-uniform touch signals caused by the difference in the equivalent resistance of the first transparent wire TT1. For example, in the upper part PT, the length of the lead portion P1 of the first transparent lead TT1 connected to the first electrode strip group ELM1 is shorter than the length of the lead portion P1 of the first transparent lead TT1 connected to the second electrode strip group ELM2. The length of the resistance adjustment portion P2 connected to the first electrode strip group ELM1 is longer than that of the resistance adjustment portion P2 connected to the second electrode strip group ELM2. In the lower part PB, the length of the lead portion P1 of the first transparent lead TT1 connected to the third electrode bar group ELM3 is shorter than the length of the lead portion P1 of the first transparent lead TT1 connected to the fourth electrode bar group ELM4, and is connected to The length of the resistance adjustment portion P2 of the third electrode strip group ELM3 is longer than that of the resistance adjustment portion P2 connected to the fourth electrode strip group ELM4.

In this embodiment, the resistance adjustment portion P2 may include a zigzag line segment P2L, such as a serpentine line segment, and the length of the resistance adjustment portion P2 may be changed by adjusting the length of the zigzag line segment P2L. Therefore, the length of the zigzag line segment P2L electrically connected to the upper part of the PT electrode strip group ELM may be longer as the distance between the electrode strip group ELM and the pad area PR is closer, and the zigzag of the zigzag line electrically connected to the lower part PB electrode strip group ELM The length of the line segment P2L may be longer as the distance between the electrode strip group ELM and the pad region PR is shorter. Further, each zigzag line segment P2L may include at least one first strip-shaped line segment P21. When the zigzag line segment P2L includes a plurality of first strip line segments P21, the first strip line segments P21 may be parallel to each other, for example, extending along the second direction D2, respectively, and the zigzag line segment P2L may further include at least one second strip line segment P22 is used to connect the first strip line segment P21. The second strip line segment P22 extends in a direction different from the second direction D2, for example, extends in the first direction D1. Each resistance adjusting portion P2 may further include a piece P23 connected between one end of the zigzag line segment P2L and one end of the corresponding electrode strip group ELM, and the zigzag line segment P2L and the block portion P23 may constitute the resistance adjustment portion P2. Since the width of the block-shaped portion P23 in the second direction D2 is larger than the line width of the zigzag line segment P2L, the equivalent resistance of the resistance adjustment portion P2 is mainly determined by the equivalent resistance of the zigzag line segment P2L. Thereby, the difference in the equivalent resistance of the lead portion P1 can be made up by the difference in the length of the meandering line segment P2L, so as to achieve the uniform resistance of the first transparent wire TT1.

In this embodiment, the widths of the resistance adjustment portions P2 in the first direction D1 may be the same as each other. Therefore, the widths of the block portions P23 connected to the electrode strip group ELM closer to the pad region PR in the first direction D1. The width is smaller than the width in the first direction D1 of the block portion P23 connected to the electrode strip group ELM farther away from the pad region PR. Specifically, each of the resistance adjustment portions P2 can pass through a block-shaped conductive material of the same size, and through a cutting method such as laser cutting, a slit SL is formed in the block-shaped conductive material, thereby forming a zigzag line segment P2L and a block shape. Department P23. The length and number of the slit SL can determine the length and number of the first strip line segment P21, so that the required length of the zigzag line segment P2L can be produced. The equivalent resistance of each zigzag line segment P2L can be adjusted through the length and width of the first strip line segment P21 and the length and width of the second strip line segment P22. For example, each first strip line segment P21 may have the same width, and each second strip line segment P22 may have the same width and length. Therefore, the number of first strip line segments P21 of each resistance adjustment section P2 When the lengths are different from each other and / or the number of the second strip line segments P22 of each resistance adjusting portion P2 is different, the length of each zigzag line segment P2L can be promoted to achieve different equivalent resistances.

In this embodiment, for the upper portion PT, the line width of the lead portion P1 connected to the electrode strip group ELM (for example, the first electrode strip group ELM1) that is closer to the pad region PR is smaller than the distance to the distance pad region PR. The line width of the lead portion P1 of the remote electrode bar group ELM (for example, the second electrode bar group ELM2) passes through the difference in the line width of the lead portion P1 and matches the length difference of each resistance adjustment portion P2 to uniformize the thickness of each transparent wire. Equivalent resistance. Similarly, for the lower part PB, the line width of the lead portion P1 connected to the electrode strip group ELM (for example, the third electrode strip group ELM3) which is closer to the second side S2 of the light-transmitting region TR may be smaller than the distance connected to the light transmission The line width of the lead portion P1 of the electrode strip group ELM (for example, the fourth electrode strip group ELM4) far from the second side S2 of the region TR, but the present invention is not limited thereto. In another embodiment, the line widths of some or all of the lead portions P1 may be the same as each other.

In this embodiment, the resistance adjustment portion P2 of the first transparent lead TT1 connected to the electrode strip group ELM located in the center of the light-transmitting region TR does not have a zigzag line segment, and the length of the lead portion P1 of the first transparent lead TT1 is longer than other The length of the lead portion P1 of the first transparent conductive wire TT1 is long. Since the first transparent wires TT1 connected to the electrode strip group ELM of the upper part PT and the lower part PB can respectively extend to the first side S1 and the second side S2 of the light-transmitting region TR, they are connected to the electrode located in the center of the light-transmitting region TR. The equivalent resistance of the lead portion P1 of the first transparent conductive wire TT1 of the strip group ELM is greater than the equivalent resistance of the lead portions P1 of the other first transparent conductive wires TT1. In the case where the equivalent resistances of the respective first transparent wires TT1 are made uniform, the design of the first transparent wire TT1 connected to the electrode bar group ELM located in the center of the light-transmitting region TR does not have a zigzag line segment, which can effectively reduce each Equivalent resistance of a transparent wire TT1. For example, the electrode strip group ELM may further include at least one sixth electrode strip group ELM6. The first electrode strip group ELM1 and the second electrode strip group ELM2 are located between the sixth electrode strip group ELM6 and the pad region PR. In this embodiment, the sixth electrode strip group ELM6 may be an electrode strip group ELM located at the center of the light-transmitting region TR. For example, the electrode strip group ELM may include two sixth electrode strip groups ELM6, and the sixth electrode strip group ELM6 is the two electrode strip group ELM closest to the lower portion PB in the upper part PT, but is not limited thereto. The first transparent wire TT1 connected to the sixth electrode bar group ELM6 may include a lead portion P1 and a block portion P23, and one end of the lead portion P1 is directly connected to the block portion P23. The width of the block portion P23 in the first direction D1 may be the same as the width of the resistance adjustment portion P2 of the other first transparent conductive wires TT1 in the first direction D1. In another embodiment, the resistance adjusting portion P2 of the first transparent wire TT1 connected to the sixth electrode bar group ELM6 may also have a meander line segment P2L.

In this embodiment, as shown in FIG. 2, the first transparent conductive wire TT1 can be divided into a first transparent conductive wire TT1a and a first transparent conductive wire TT1b, and the first transparent conductive wire TT1a and the first transparent conductive wire TT1b are respectively located in the electrode bar group. Two opposite sides of ELM (left and right sides). In this embodiment, each electrode strip group ELM connected to the corresponding first transparent conductive wire TT1a and each electrode strip group ELM connected to the corresponding first transparent conductive wire TT1b are sequentially alternately arranged along the second direction D2, that is, two adjacent electrodes The bar group ELM is respectively connected to the first transparent wire TT1a and the first transparent wire TT1b located on both sides of the electrode bar group ELM, so that the first transparent wire TT1 can be evenly disposed on both sides of the electrode bar group ELM to avoid the risk of the touch panel TP1. Visual asymmetry caused by inconsistent width of the borders on both sides. For example, the electrode strip group ELM further includes a fifth electrode strip group ELM5, which is adjacent to the first electrode strip group ELM1, and the electrode strip group ELM is located on the first transparent wire TT1a connected to the first electrode strip group ELM1 and connected to the first electrode strip group ELM1. Between the first transparent wires TT1b of the five-electrode strip group ELM5.

Please continue to refer to Figure 2. The touch panel TP1 of this embodiment may further include at least one opaque wire OT1 and at least one opaque wire OT2, which are disposed in the opaque region OR to make the first transparent extending to the second side S2 of the transparent region TR. The wire TT1 is electrically connected to the pad BP in the pad region PR. The first transparent conductive wire TT1a is disposed between the opaque conductive wire OT1 and the electrode bar group ELM, and the opaque conductive wire OT1 extends from the second side S2 of the light transmitting region TR through the third side S3 to the pad region PR of the first side S1, and The first transparent conductive wire TT1b is disposed between the opaque conductive wire OT2 and the electrode bar group ELM, and the opaque conductive wire OT2 extends from the second side S2 of the light-transmitting region TR through the fourth side S4 to the pad region PR of the first side S1. The number of the first transparent wires TT1a connected to the electrode strip group ELM of the lower part PB is the same as the number of the opaque wires OT1, and the number of the first transparent wires TT1b connected to the electrode strip group ELM of the lower part PB is the same as the number of the opaque wires OT2. The same number. Accordingly, the electrode strip group ELM in the lower part PB can be electrically connected to the pads BP in the pad region PR through the opaque wires OT1 and opaque wires OT2, respectively. It is worth noting that the opaque wire OT1 and the opaque wire OT2 may be formed of an opaque conductive layer. The opaque conductive layer may include, for example, a metal material, such as silver. Therefore, the resistivity of the opaque wire OT1 and the opaque wire OT2 may be much smaller than the first transparent wire The resistivity of the transparent conductive material of the TT1 and the electrode strip group ELM makes the equivalent resistance of the opaque wire OT1 and the opaque wire OT2 negligible relative to the equivalent resistance of the first transparent wire TT1. Therefore, in this embodiment, the first transparent wire TT1 connected to the electrode bar group ELM in the lower part PB can be designed to extend to the second side S2 of the light-transmitting region TR, thereby reducing the equivalent resistance of the first transparent wire TT1.

The touch panel TP1 of this embodiment may further include a plurality of opaque wires OT3, which are disposed in the opaque region OR of the first side S1 of the light-transmitting region TR to connect to the first side S1 of the light-transmitting portion TR respectively. The first transparent conductive wire TT1 can electrically connect the electrode strip group ELM in the upper part PT to the pad BP. In addition, the touch panel TP1 of this embodiment may optionally further include at least one ground trace GT surrounding the light-transmitting region TR to prevent static electricity from damaging the internal circuit of the touch panel TP1.

Please refer to FIG. 5, which is a schematic cross-sectional view taken along the line A-A ′ of FIG. 4. As shown in FIG. 5, the first transparent conductive wire TT1 in this embodiment is formed by the first transparent conductive layer TL1, the opaque conductive wire OT1 is formed by the opaque conductive layer OL, and a part of the opaque conductive layer OL may be directly formed on the first A transparent conductive layer TL1 is provided so that the opaque wire OT1 can be directly electrically connected to the corresponding first transparent wire TT1, but it is not limited thereto. For example, when the number of opaque wires OT1 is plural and is composed of silver, the opaque wires OT1 can be first formed through a wide and single opaque wire, and then the opaque wire is cut into multiple by laser cutting. Opaque wires OT1. Similarly, the opaque wire OT2 can be formed in the same manner. In another embodiment, the opaque conductive layer OL may also be formed before the first transparent conductive layer TL1 and located between a portion of the first transparent conductive layer TL1 and the substrate Sub.

Please refer to Figure 6 and Figure 7, and match Figure 2. FIG. 6 shows a schematic plan view of an electrode strip group and an electrode tandem group according to the first embodiment of the present invention, and FIG. 7 shows a touch panel corresponding to the first embodiment of the present invention corresponding to FIG. 2 across the touch area RT, An enlarged schematic view of the peripheral region RP and the region R of the opaque region OR. As shown in FIG. 2, FIG. 6, and FIG. 7, each electrode strip group ELM in this embodiment includes two electrode strips EL separated from each other, and the electrode strips EL of each electrode strip group ELM can pass through corresponding transparent wires. They are electrically connected to each other, for example, through the block P23 of the first transparent wire. Each electrode string group ESS may include a first electrode string ES1 and a second electrode string ES2, and each of the first electrode string ES1 and each second electrode string ES2 includes a plurality of electrode groups EM electrically connected to each other. The electrode groups EM are arranged in an array, the electrode groups EM of each electrode series ESS are arranged in the same row, the electrode groups EM of each first electrode series ES1 are located in odd columns, and the electrode groups of each second electrode series ES2 are EM is in the even column. In addition, each first electrode series ES1 includes a plurality of first connection line segments CS1, and each first connection line CS1 is respectively connected to two adjacent electrode groups EM in each first electrode series ES1. Each second electrode series ES2 includes a plurality of second connection line segments CS2, and each second connection line segment CS2 is respectively connected to two adjacent electrode groups EM in each second electrode series ES2. In this embodiment, the first connection line segment CS1 and the second connection line segment CS2 are respectively located on the right and left sides of the electrode group EM, but it is not limited thereto, and vice versa. The column direction and the row direction of the array may be, for example, a first direction D1 and a second direction D2, but are not limited thereto. Each electrode strip group ELM overlaps the electrode group EM of two adjacent rows in the plan direction Z, and two adjacent electrode strip groups ELM overlap the electrode group EM of the same row in the plan direction Z. Specifically, the electrode group EM in the first column of each row and the electrode group EM in the last column of each row include an electrode E, and the remaining electrode groups EM include at least two electrodes E, which are arranged along the second direction D2 so that the electrode E It can also be arranged in an array. The electrodes E of each electrode group EM are separated from each other but electrically connected. Each electrode strip EL overlaps the electrode E of the same row in the electrode group EM of the same row in the top view direction Z, so that each electrode strip EL and the corresponding overlapping electrode E are capacitively coupled to each other into a touch unit TU. Therefore, the touch area RT of the touch panel TP1 can be a range formed by the touch unit TU, and the peripheral area RP is an area outside the touch unit TU. In this embodiment, each electrode strip EL may include a plurality of electrode portions ELA, which respectively overlap one of the corresponding electrodes E, and the boundary between the touch area RT and the peripheral area RP may pass through the electrode portion ELA and the first The boundary where the transparent wire TT1 touches is defined. For example, the electrode portion ELA may be formed by connecting a plurality of strip-shaped portions ELA1, for example, forming a grid shape. Each electrode strip EL in this embodiment may optionally further include a plurality of shielding portions ELB, and each electrode portion ELA and each shielding portion ELB are alternately connected in series along the first direction D1, but it is not limited thereto. In each electrode strip EL of this embodiment, the width of the touch unit TU closest to the peripheral region RP (closest to the first transparent wire TT1) in the first direction D1 may be smaller than that of the touch units not adjacent to the peripheral region RP. The width of the TU in the first direction D1. In this case, in order to uniformize the sensing amount of each touch unit TU, the width of the stripe portion ELA1 of the electrode portion ELA closest to the peripheral region RP may be larger than the stripe portion ELA1 of the electrode portion ELA not closest to the peripheral region RP. The width. In another embodiment, each electrode strip group ELM may be a single electrode strip that overlaps two adjacent column electrode groups EM. In yet another embodiment, each electrode strip group ELM may be composed of only a first electrode strip, each electrode string group ESS may be composed of only a second electrode strip, and each first electrode strip and each second electrode strip may Coupled to form a touch unit. The design of the touch unit formed by the electrode strip group and the electrode series group of the present invention is not limited to the above, and may also be other types of touch panels.

In addition, one of the resistance adjustment portions P2 of the present embodiment may overlap one of one of the first connection line segment CS1 and one of the second connection line segment CS2. Specifically, the resistance adjustment part P2 of the first transparent conductive wire TT1a may overlap the second connection line segment CS2 in the electrode string group ESS nearest to the first transparent conductive wire TT1a, and the resistance adjustment part P2 of the first transparent conductive wire TT1b may It overlaps with the first connection line segment CS1 in the electrode series group ESS nearest to the first transparent wire TT1b. It is worth noting that the resistance adjusting portion P2 of this embodiment is made by using the shielding portion that is closest to the corresponding first transparent wire TT1. Therefore, the width of the resistance adjusting portion P2 in the first direction D1 can be equal to that of the shielding portion ELB. The width in the first direction D1 is the same. The advantage of this design is that the shielding portion ELB can achieve the purpose of uniformizing the equivalent resistance of each of the first transparent wires TT1 while being almost non-destructive and its shielding effect.

The following will further explain that the design of the resistance adjustment part P2 in this embodiment does not affect the sensing position in the second direction D2 detected by a row of touch units TU closest to the peripheral region RP. Please refer to FIG. 8, which is a schematic diagram showing the position of the sensing amount sensed by the touch unit when the user ’s touch position is on the first transparent wire. The sensing amount shown in FIG. 8 is only an example. The present invention It is not limited to this. As shown in FIGS. 6 to 8, the touch unit TU1 is a touch unit TU adjacent to the peripheral region RP, the touch unit TU2 is a touch unit TU surrounding the touch unit TU1, and an electrode E constituting the touch unit TU3. It is electrically connected to the electrode E constituting the touch unit TU1, and the first transparent wire TT1 electrically connected to the touch unit TU3 overlaps the touch object TO when the user touches the touch panel TP1. When the user touches the center point of the touch object TO of the touch panel TP1 approximately at the boundary between the touch unit TU1 and the peripheral area RP, the sensing amount of the touch unit TU1 can reach, for example, a signal amount of 368, and away from the touch The sensing amount of the touch unit TU3 of the unit TU1 can reach, for example, a 15-signal amount because the touch object TO generates capacitive coupling with the corresponding first transparent wire TT1 and the electrode E of the touch unit TU1 electrically connected to the electrode E. The touch panel TP1 uses the touch unit TU3 with the largest sensing amount as the center point of Jiugongge to obtain the sensing amount of each touch unit TU of Jiugongge as the basis for calculating the touch position. The amount of induction. In this example, the touch panel TP1 is calculated based on the sensing amounts sensed by the touch unit TU1 and the touch unit TU2, and the touch unit TU3, which is particularly located in Jiugong, is not included in the calculation. Therefore, although the touch unit TU3 has a certain amount of sensing, its position is not located in the Jiugongge, so that the amount of sensing generated by the touch unit TU3 will not affect the touch panel TP1 detecting the touch of the object TO in the second direction D2. Position accuracy. Therefore, if the touch object TO moves linearly along the second direction D2, the sensing amount of the touch unit TU3 will not affect the measured linear accuracy. In this embodiment, since the width of the peripheral region RP in the first direction D1 is less than half of the touch object TO, when the center point of the touch object TO is approximately at the boundary between the touch unit TU1 and the peripheral region RP, Part of the touch object TO may overlap the opaque area OR. For example, the width of the peripheral region RP may reach about 1.9 mm.

It is worth noting that through the design of the touch panel TP1 described above, the number of the opaque wires OT1 and the opaque wires OT2 in this embodiment can be reduced. As shown in FIG. 1, since the opaque wire OT1 and the opaque wire OT2 are included in the touch layer TL, the overlapping area of the touch layer TL and the opaque area OR can be reduced, so that the display device DD is in contact with the touch screen. When the panel TP is adhered, it can be directly adhered to the substrate Sub instead of being indirectly adhered to the substrate Sub through the touch layer TL. In this way, when the display device DD needs to be separated from the substrate Sub, the touch layer TL will not be attached to the display device DD because of the strong adhesion with the display device DD, and the touch layer TL is easier to be displayed. Device DD is separated.

Please refer to FIG. 9, which is a schematic top view of a touch panel according to a second embodiment of the present invention. As shown in FIG. 9, the difference between the touch panel TP2 in this embodiment and the first embodiment is that the touch panel TP2 in this embodiment may further include a plurality of second transparent wires TT2 respectively connected to the electrode bar group ELM. The other end of one of them allows the two ends of the same electrode bar group ELM to be connected to the first transparent wire TT1 and the second transparent wire TT2 respectively, so that the same electrode bar group ELM can be connected to the same through two transparent wires. Signal end. Therefore, when the driving signal is actually sent, it is sent to the first transparent wire TT1 and the second transparent wire TT2 at the same time. Compared with the first embodiment, the equivalent resistance between each electrode strip group ELM and the pad BP in this embodiment can be reduced, or the equivalent resistance between each electrode strip group ELM and the pad BP in this embodiment can be reduced. When the equivalent resistance is the same as in the first embodiment, the width of the first transparent conductive wire TT1 and the width of the second transparent conductive wire TT2 may be smaller than the width of the first transparent conductive wire in the first embodiment. In this embodiment, the structure of the second transparent wire TT2 may be symmetrical to the structure of the corresponding first transparent wire TT1. Therefore, in the upper part PT, the lead portion P1 of the second transparent wire TT2 of the first electrode strip group ELM1 is connected. Is shorter than the length of the lead portion P1 of the second transparent lead TT2 connected to the second electrode strip group ELM2, and the length of the resistance adjustment portion P2 of the second transparent lead TT2 connected to the first electrode strip group ELM1 is longer than that connected to the The resistance adjustment part P2 of the second transparent lead TT2 of the two-electrode bar group ELM2. In the lower part PB, the length of the lead portion P1 of the second transparent lead TT2 connected to the third electrode bar group ELM3 is shorter than the length of the lead portion P1 of the second transparent lead TT2 connected to the fourth electrode bar group ELM4, and is connected to The resistance adjustment portion P2 of the second transparent lead TT2 of the third electrode bar group ELM3 is longer than the resistance adjustment portion P2 of the second transparent lead TT2 connected to the fourth electrode bar group ELM4. In this embodiment, the second transparent wire TT2 connected to the electrode bar group ELM of the lower part PB can also be electrically connected to the pad BP through the opaque wire OT1 and the opaque wire OT2. The sum of the numbers of one transparent wire TT1 and the second transparent wire TT2 is the same as the sum of the number of opaque wires OT1 and opaque wire OT2.

Please refer to FIG. 10, which illustrates a schematic top view of a touch panel according to a third embodiment of the present invention. As shown in FIG. 10, the touch panel TP3 of this embodiment is different from the first embodiment in that the touch panel TP3 of this embodiment does not include opaque wires. In other words, the electrode strip group ELM of this embodiment is not distinguished into an upper part and a lower part, and all the first transparent wires TT1 extend from one end of the electrode strip group ELM to the first side S1 of the light-transmitting area OR, so There is no need for opaque wires, so that the frame of the touch panel TP3 in this embodiment can be effectively reduced to achieve a near-frameless situation.

Please refer to FIG. 11, which is a schematic partial plan view of a touch panel according to a fourth embodiment of the present invention. In order to clearly show the first transparent wires TT41, FIG. 11 only shows the structure of the first transparent wires TT41 connected to the upper part of the PT electrode bar group ELM and the two rows of touch units TU closest to the first transparent wires TT41. The invention is not limited to this. As shown in FIG. 11, the difference between the touch panel TP4 in this embodiment and the above embodiment is that the lead portion P41 of the first transparent conductive wire TT41 in this embodiment has an uneven width, so that the lead portion P41 can be used without setting. There is an area of the first transparent conductive layer to widen its width to reduce its equivalent resistance, thereby making up for the difference between the equivalent resistances of the first transparent conductive wires TT41. That is, each lead portion P41 may have a portion extending into the opaque region OR along the second direction D2, and this portion of one of the lead portions P41 includes a first portion PP41 and a second portion PP42, and The width of the first portion PP41 in the first direction D1 is different from the width of the second portion PP42 in the first direction D1. In this embodiment, the first transparent wires TT41 connected to the electrode strip group ELM are alternately arranged on both sides of the electrode strip group ELM along the second direction D2, so that the first transparent wires TT41 connected to two adjacent electrode strip groups ELM are respectively The transparent wires TT41 are respectively located on two opposite sides of the electrode bar group ELM. For example, the electrode strip groups ELMa, ELMb, ELMc, ELMd, ELMe, and ELMf of the upper part of the PT may be sequentially arranged along the second direction D2, where the first transparent wire TT41a, connected to the electrode strip group ELMa, ELMc, ELMe, TT41c and TT41e are adjacent to the third side S3 (located on the same side of the electrode strip group ELM) of the light-transmitting region TR. Since the electrode strip group ELMe is farther from the first side S1 of the light-transmitting region TR than the electrode strip group ELMc, the length of the first transparent conductive wire TT41e is greater than the length of the first transparent conductive wire TT41c. The resistance adjustment part P42 of the first transparent conductive wire TT41c in this embodiment may have a notch PP43 in the case of covering most of the first connection line segment CS1, that is, the notch PP43 may be located between two adjacent first connection line segments CS1. , So that the width of the first portion PP41 of the first transparent wire TT41e corresponding to the notch PP43 in the first direction D1 may be greater than the width of the second portion PP42 of the first not corresponding to the notch PP43 in the first direction D1. The shielding portion ELB4 of the electrode strip group ELMb closest to the third side S3 may also have another notch PP44, which is located between two adjacent first connecting line segments CS1, so that the first part PP41 of the first transparent lead TT41c can also be provided in the recess In the opening PP44, the width of the first transparent wire TT41e corresponding to the first portion PP41 of the recess PP44 can be widened. In addition, since there is no other first transparent lead TT41 between the first portion PP41 and the shielding portion ELB4 of the electrode strip group ELMd, and between the resistance adjustment portion P42 of the electrode strip group ELMc, the shielding portion ELB4 of the electrode strip group ELMd and The width of the first portion PP41 of the resistance adjustment portion P42 of the electrode strip group ELMc may also be widened. Through the design of the first transparent conductive wire TT41e, the equivalent resistance of the first transparent conductive wire TT41e can be effectively reduced. It is worth mentioning that since the equivalent resistance of each first transparent wire TT41 is uniformized, the equivalent resistance of the longest first transparent wire TT41 (for example, the first transparent wire TT41e) will determine each first transparent wire. The equivalent resistance of the lead TT41, so when the equivalent resistance of the longest first transparent lead TT41 is reduced, the equivalent resistance of the remaining first transparent lead TT41 can also be reduced. In some embodiments, other first transparent wires TT41 adjacent to the third side S3 of the light-transmitting region TR may also have a first portion PP41 and a second portion PP42 with different widths. In the same way, the equivalent resistance of the first transparent wires TT41b, TT41d, and TT41f connected to the electrode bar groups ELMb, ELMd, and ELMf can also be reduced through the design of the same concept. In this way, the sensing amount obtained by the touch panel TP4 through each of the first transparent wires TT41 can be effectively improved, thereby improving the touch accuracy. For example, the equivalent resistance of each first transparent wire TT41 can be reduced to 15 kiloohms (kohm), compared to the equivalent resistance of each first transparent wire is 28.7kohm, the obtained inductance can be increased by 30 %. In some embodiments, the positions and lengths of the first part PP41 and the second part PP42 of the first transparent wire TT41 may be adjusted according to the design of the electrode series.

In the first transparent conductive wire TT41 of this embodiment, the resistance adjusting portion P42 may not have a zigzag line segment, but the width of the lead portion P41 having a longer length may be widened to achieve an equivalent resistance of each first transparent conductive wire TT41 However, the present invention is not limited to this. In addition, in some embodiments, compared with the first embodiment shown in FIG. 6, the width of the shielding portion ELB4 of each electrode strip group ELM in the second direction D2 may be slightly larger than or approximately equal to two adjacent electrodes E. The width in the second direction D2, that is, the shielding portion ELB4 can be formed by connecting two adjacent shielding portions of the first embodiment to each other, thereby shielding more portions of the connecting line segments.

Please refer to FIG. 12, which is a schematic partial plan view of a touch panel according to a fifth embodiment of the present invention. As shown in FIG. 12, the difference between the touch panel TP5 in this embodiment and the fourth embodiment shown in FIG. 11 is that at least one first transparent wire TT51 in this embodiment may also include a zigzag line segment P2L, For example, the first transparent wire TT51 connected to the electrode bar group ELM closest to the first side S1 may include a meander line segment P2L. That is, the first transparent conductive wire TT51 can uniformize and improve the equivalent resistance of the first transparent conductive wire TT51 through the design of the meander line segment P2L and the uneven width at the same time. The number of the first transparent conductive wires TT51 having the meandering line segment P2L can be determined according to the equivalent resistance of the first transparent conductive wire having the longest length.

Please refer to FIG. 13, which is a schematic partial plan view of a touch panel according to a sixth embodiment of the present invention. As shown in FIG. 13, the difference between the touch panel TP6 in this embodiment and the fourth embodiment shown in FIG. 11 is that in this embodiment, the first connection with the two adjacent electrode strip groups ELM The transparent lead TT61 is located on the same side of the electrode strip group ELM. Specifically, the first transparent conductive wires TT61 in this embodiment may all be disposed on the same side of the electrode strip group ELM (for example, both of the fourth side S4 or the third side S3 adjacent to the light transmitting region TR). In the following, the lead portion P61 of the first transparent lead TT61 connecting the electrode strip groups ELMg, ELMh, and ELMi is taken as an example for further description, but the present invention is not limited thereto. In the lead portion P61 electrically connected to the electrode strip group ELMg, the first portion PP61 is connected between the second portion PP62 and the electrode strip group ELMg, and the first portion PP61 is in a first direction D1 and adjacent to the electrode strip group ELMg. The distance G1 between the electrode bar groups ELMh is larger than the distance G2 between the second portion PP62 in the first direction D1 and the lead portion P61 connecting the electrode bar group ELMh adjacent to the electrode bar group ELMg. In this embodiment, the first part PP61 is disposed at an end of the electrode strip group ELMh adjacent to the electrode strip group ELMg adjacent to the fourth side S4, and in particular, is located on a side of the touch unit TUa adjacent to the electrode strip group ELMg. The second part PP62 is disposed at an end of the electrode strip group ELMi which is not adjacent to the electrode strip group ELMg, which is adjacent to the fourth side S4. Since the first transparent wires TT61 connected to each electrode bar group ELM extend from the same side of the electrode bar group ELM, the first transparent wire TT61 corresponding to the touch unit TUb adjacent to the touch unit TUa in the first direction D1 The first part PP61 is not only adjacent to the touch unit TUa in the second direction, but also provides a sense of induction that cannot be ignored when touched. Therefore, if the first part PP61 is too close to the electrode strip group ELMh adjacent to the electrode strip group ELMg, when the user touches the touch unit TUa adjacent to the electrode strip group ELMg, the first part PP61 connected to the electrode strip group ELMg and touches The amount of coupled sensing of the object will cause the touch panel TP6 to determine that a part of the touched object is located on the touch unit TUb, thereby affecting the touch accuracy. It can be seen that, although the first portion PP61 of this embodiment can use the space between two adjacent second connecting line segments CS2, the width in the first direction D1 is greater than the width of the second portion PP62 in the first direction D1. However, by increasing the distance between the first part PP61 and the touch unit TUb electrically connected to the first part PP61 adjacent to the touch unit TUa, the accuracy of the touch can be effectively prevented from being affected by the width of the lead portion P61. Similarly, the first transparent wire TT61 electrically connected to the electrode strip group ELMh and the electrode strip group ELMj may have the same design.

Please refer to FIGS. 14 and 15A to 15D. FIG. 14 shows a schematic top view of a touch panel according to a seventh embodiment of the present invention, and FIGS. 15A to 15D respectively show a region R1 in FIG. 14. , R2, R3 and R4. As the region R1 shown in FIG. 14 and FIG. 15A, the opaque wire OT73 of the touch panel TP7 of this embodiment is disposed in the opaque region OR of the first side S1 of the light-transmitting region TR, and each opaque wire OT73 is respectively connected to one end of a corresponding first transparent wire TT71 (for example, the first transparent wire TT71 provided in the peripheral region RP adjacent to the third side S3 of the light-transmitting region TR and extending from the first side S1), wherein each of the opaque wires The OT73 and the corresponding first transparent wire TT71 have a first connection region CR1, and the first connection region CR1 is arranged along the first direction D1. Specifically, the touch panel TP7 further includes a plurality of opaque wires OT74, which are arranged in the opaque region OR of the first side S1 of the light-transmitting region TR, wherein each electrode series group ESS includes a first electrode series ES1 And a second electrode series ES2, each opaque wire OT74 is electrically connected to the first electrode series ES1 and the second electrode series ES2, and each opaque wire OT74 is connected to the corresponding first electrode series ES1 or the corresponding second electrode string The row ES2 has a second connection region CR2, and one of the second connection regions CR2 overlaps one of the first connection regions CR1 in the plan view direction Z. Further, the opaque wire OT73 may be formed by a first opaque conductive layer OL1, the opaque wire OT74 may be formed by a second opaque conductive layer OL2, and a gap is provided between the first opaque conductive layer OL1 and the second opaque conductive layer OL2. The insulating layer is used to electrically insulate the two, so the opaque wire OT3 and the opaque wire OT74 overlapping each other will not be electrically connected. The insulating layer may be composed of an insulating material, a thin film, and an adhesive layer or a thin film formed by a deposition process. The first opaque conductive layer OL1 may be located on or under the first transparent conductive layer TL1 forming the first transparent conductive wire TT71, and the second opaque conductive layer OL2 may be located on the second forming the first electrode series ES1 and the second electrode series ES2. The transparent conductive layer TL2 is above or below. It is worth mentioning that because the traditional first connection area is designed to avoid the laser cutting step caused by the overlapping first opaque conductive layer and the second opaque conductive layer, the second connection area is avoided along the second The direction D2 is arranged, so that the width of the opaque region OR located on the first side S1 of the transparent region TR is limited by the size of the first connection region. However, the laser cutting process for forming the first opaque conductive layer OL1 and the second opaque conductive layer OL2 in this embodiment does not damage the insulating layer therebetween, so the first connection region CR1 may overlap the second connection. Area CR2. Through this overlapping design, the first connection regions CR1 of this embodiment can be arranged along the first direction D1, thereby shortening the distance between the first side S1 of the light-transmitting region TR and the corresponding edge of the substrate Sub, so as to reduce the area located in the light-transmitting region. A region of the opaque region OR of the first side S1 of the TR.

As shown in the area R2 in FIG. 15B, the touch panel TP7 further includes an opaque wire OT75, which is respectively connected to the corresponding first transparent wire TT71 (for example, it is provided in the peripheral region RP adjacent to the fourth side S4 of the light-transmitting region TR and is from the first One end of the first transparent wire TT71) extending from one side S1, each of the opaque wires OT75 and the corresponding first transparent wire TT71 has a third connection region CR3, and the third connection region CR3 can also be arranged along the first direction D1. . For example, the width of the opaque region OR located on the first side S1 of the transparent region TR in the second direction D2 can be reduced to less than 2.5 mm. Similarly, as shown in the area R3 shown in FIG. 15C and the area R4 shown in FIG. 15D, each of the opaque wires OT71 and the peripheral area RP disposed adjacent to the third side S3 of the light transmitting area TR and extending from the second side S2 The first transparent conductive wire TT71 has a fourth connection region CR4, and the fourth connection region CR4 can also be arranged along the first direction D1. Each opaque wire OT72 and the first transparent wire TT71 provided in the peripheral region RP adjacent to the fourth side S4 of the light-transmitting region TR and extending from the second side S2 have a fifth connection region CR5, and the fifth connection region CR5 also It may be arranged along the first direction D1. Thereby, the area of the opaque area OR located on the second side S2 of the light-transmitting area TR can be further reduced.

In summary, in the touch panel of the present invention, a transparent wire formed of a transparent conductive material is used to electrically connect the electrode strip groups, so that the transparent wire can be disposed in the light-transmitting area. The width can be increased, and the number of opaque wires disposed on the left and right sides of the light-transmissive region can be reduced, thereby reducing the width of the light-transmissive region and reducing the width of the frame of the touch panel. In addition, since the transparent conductive wires made of transparent conductive materials are likely to have significantly different equivalent resistances due to different lengths, the equivalent resistances of the transparent conductive wires are significantly different. Therefore, in the touch panel of the present invention, The length of the zigzag line segment of the transparent lead connected to the electrode strip group closer to the first side and / or the second side of the light-transmitting area is designed to be longer than the first side and / or the second side of the transparent-area connection. The length of the zigzag line segment of the transparent wire of the electrode strip group, or the width of the lead portion of the transparent wire connected to the electrode strip group farther from the first side and / or the second side of the light-transmitting area can be made up, which can make up for each The difference in the equivalent resistance of the lead wires in the transparent wire can uniformize the equivalent resistance of each transparent wire and reduce the non-uniform touch signal caused by the difference in the equivalent resistance of the transparent wire. The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the scope of patent application of the present invention shall fall within the scope of the present invention.

TP, TP1, TP2, TP3, TP4, TP5, TP6, TP7‧‧‧ touch panel

DD‧‧‧display device

TD‧‧‧Touch display device

DS‧‧‧ Display

TR‧‧‧Translucent area

OR‧‧‧opaque area

S1‧‧‧First side

S2‧‧‧Second side

S3‧‧‧ Third side

S4‧‧‧ Fourth side

Sub‧‧‧ substrate

SL‧‧‧shielding layer

TL‧‧‧Touch layer

AL1, AL2‧‧‧Adhesive layer

RT‧‧‧touch area

RP‧‧‧Peripheral area

PR‧‧‧ pad area

ELM1‧‧‧First electrode strip set

ELM2‧‧‧Second electrode strip set

ELM3‧‧‧Third electrode strip set

ELM4‧‧‧ Fourth electrode bar set

ELM5‧‧‧Fifth electrode strip set

ELM6‧‧‧ Sixth electrode strip set

ESS‧‧‧electrode tandem set

D1‧‧‧ first direction

D2‧‧‧ Second direction

Z‧‧‧view direction

TT2‧‧‧Second transparent wire

PT‧‧‧upper

PB‧‧‧Next

P1, P41‧‧‧Leading section

P2, P42‧‧‧Resistance adjustment department

P2L‧‧‧Zigzag line segment

P21‧‧‧The first line segment

P22‧‧‧Second line segment

P23‧‧‧Block

BP‧‧‧pad

GT‧‧‧ Ground Trace

TL1‧‧‧The first transparent conductive layer

TL2‧‧‧Second transparent conductive layer

OL‧‧‧opaque conductive layer

OL1‧‧‧The first opaque conductive layer

OL2‧‧‧Second opaque conductive layer

EL‧‧‧ electrode strip

ES1‧‧‧First electrode series

ES2‧‧‧Second electrode series

CS1‧‧‧First connecting line segment

CS2‧‧‧Second connecting line segment

EM‧‧‧electrode set

E‧‧‧electrode

ELA‧‧‧electrode section

ELA1‧‧‧Bar

ELB, ELB4‧‧‧ shelter

TO‧‧‧ Touch

PP41, PP61 ‧‧‧ Part I

PP42, PP62‧‧‧ Part 2

PP43, PP44 ‧‧‧ notch

CR1‧‧‧First connection area

CR2‧‧‧Second connection area

CR3‧‧‧Third connection area

CR4‧‧‧Fourth connection area

CR5‧‧‧Fifth connection area

G1, G2‧‧‧pitch

R, R1, R2, R3, R4‧‧‧ area

ELM, ELMa, ELMb, ELMc, ELMd, ELMe, ELMf, ELMg, ELMh, ELMi, ELMj‧‧‧ electrode strip set

TT1, TT1a, TT1b, TT41, TT41a, TT41b, TT41c, TT41d, TT41e, TT41f, TT51, TT61, TT71‧‧‧ the first transparent wire

OT1, OT2, OT3, OT71, OT72, OT73, OT74, OT75‧‧‧opaque wires

TU, TU1, TU2, TU3, TUa, TUb ‧‧‧ touch units

FIG. 1 is a schematic diagram of a touch display device using the touch panel of the present invention. FIG. 2 is a schematic top view of the touch panel according to the first embodiment of the present invention. FIG. 3 is a schematic top view of a transparent wire connected to the upper electrode strip group according to the first embodiment of the present invention. FIG. 4 is a schematic top view of a transparent wire connected to a lower electrode strip group according to a first embodiment of the present invention. Fig. 5 is a schematic cross-sectional view taken along the line A-A 'of Fig. 4. FIG. 6 is a schematic top view of an electrode strip group and an electrode string group located in a touch area according to the first embodiment of the present invention. FIG. 7 is an enlarged schematic diagram of the touch panel according to the first embodiment of the present invention corresponding to FIG. 2 in the region R spanning the touch area, the peripheral area, and the opaque area. FIG. 8 is a schematic diagram showing the position of the sensing amount sensed by the touch unit when the user's touch position is on the first transparent wire. FIG. 9 is a schematic top view of a touch panel according to a second embodiment of the present invention. FIG. 10 is a schematic top view of a touch panel according to a third embodiment of the present invention. FIG. 11 is a schematic partial plan view of a touch panel according to a fourth embodiment of the present invention. FIG. 12 is a schematic partial plan view of a touch panel according to a fifth embodiment of the present invention. FIG. 13 is a schematic partial plan view of a touch panel according to a sixth embodiment of the present invention. FIG. 14 is a schematic top view of a touch panel according to a seventh embodiment of the present invention. 15A to 15D are enlarged schematic diagrams of regions R1, R2, R3, and R4 in FIG. 14, respectively.

Claims (30)

A touch panel has a light-transmitting area and an opaque area. The opaque area includes a pad area located on a first side of the light-transmitting area. The touch panel includes: a plurality of electrode strips. Groups are respectively arranged in the light transmitting area along a first direction, wherein the electrode strip groups include a first electrode strip group and a second electrode strip group, and the first electrode strip group is located on the second electrode Between the strip group and the pad area; a plurality of first transparent wires are disposed in the light-transmitting area, and each of the first transparent wires includes a resistance adjusting part connected to one of the electrode strip groups One end, and the resistance adjustment sections electrically connected to the first electrode strip group and the second electrode strip group respectively include a zigzag line segment, wherein the length of the zigzag line segment electrically connected to the first electrode strip group is longer than the electrical connection To the second zigzag line segment of the second electrode strip group; and a plurality of electrode string groups are respectively arranged in the light transmitting region along a second direction different from the first direction, and the electrode string groups and The electrode strip groups are staggered. The touch panel according to claim 1, wherein the light transmitting region has a second side opposite to the first side, and is connected to the first electrode strip groups and the first electrode strip groups. A transparent wire extends to the first side, wherein the electrode strip groups further include a third electrode strip group, which is closer to the second side than the first side, and is connected to the first transparent wire of the third electrode strip group. Extend to this second side. The touch panel according to claim 2, further comprising at least one opaque wire disposed in the opaque area and connected to the first transparent wire connected to the third electrode bar group, and the first A transparent lead is disposed between the opaque lead and the electrode bar groups. The touch panel according to claim 2, wherein the electrode strip groups further include a fourth electrode strip group, which is disposed between the third electrode strip group and the second side, and is electrically connected to the third electrode strip group. The first transparent wires of the group and the fourth electrode bar group respectively include a zigzag line segment, and the length of the zigzag line segment electrically connected to the fourth electrode bar group is longer than the zigzag line electrically connected to the third electrode bar group. The length of the line segment. The touch panel according to claim 1, wherein the electrode strip groups further include a fifth electrode strip group, which is adjacent to the first electrode strip group, and the electrode strip groups are located to connect to the first electrode strip group. Between the first transparent lead and the first transparent lead connected to the fifth electrode strip group. The touch panel according to claim 1, wherein the electrode strip groups further include a sixth electrode strip group, and the first electrode strip group and the second electrode strip group are located on the sixth electrode strip group and the pad. Between the regions, the first transparent wire electrically connected to the sixth electrode bar group does not have a zigzag line segment. The touch panel according to claim 1, wherein each of the first transparent wires further includes a lead portion extending from one end of the corresponding resistance adjustment portion to the opaque region. The touch panel according to claim 7, wherein a length of the lead portion electrically connected to the first electrode strip group is shorter than a length of the lead portion electrically connected to the second electrode strip group. The touch panel according to claim 7, wherein a line width of the lead portion connected to the first electrode strip group is smaller than a line width of the lead portion connected to the second electrode strip group. The touch panel according to claim 1, wherein the electrode bar groups and the first transparent wires are formed of a transparent conductive layer. The touch panel according to claim 1, wherein the widths of the resistance adjustment sections in the first direction are the same as each other. The touch panel according to claim 1, wherein each of the electrode bar groups includes two electrode bars separated from each other. The touch panel according to claim 12, wherein each of the electrode bars includes a plurality of shielding portions, and a width of each of the resistance adjusting portions in the first direction is the same as a width of each of the shielding portions in the first direction. . The touch panel according to claim 1, wherein each of the electrode series includes a first electrode series and a second electrode series, and each of the first electrode series includes a plurality of first connection line segments, each of which The second electrode series includes a plurality of second connection line segments, and one of the resistance adjustment sections overlaps one of the first connection line segments and one of the second connection line segments. The touch panel according to claim 1, further comprising a plurality of second transparent wires respectively connected to the other ends of one of the electrode bar groups. The touch panel of claim 1, wherein the length of the zigzag line segment electrically connected to the first electrode strip group and the length of the zigzag line segment electrically connected to the second electrode strip group depend on the electrical connection to the The equivalent resistance difference between the first transparent wire of the meander line segment of the first electrode strip group and the first transparent wire including the meander line segment electrically connected to the second electrode strip group. The touch panel according to claim 1, wherein each of the first transparent wires further includes a lead portion extending along the second direction into the opaque region, and one of the lead portions includes a first portion And a second portion, and a width of the first portion in the first direction is different from a width of the second portion in the first direction. The touch panel according to claim 17, wherein the first transparent wires connected to two adjacent electrode strip groups are located on two opposite sides of the electrode strip groups, respectively. The touch panel according to claim 18, wherein the width of the first portion is larger than the second portion, and the first portion is adjacent to the electrode strips electrically connected to the first portion and the second portion than the second portion. One of the groups, and the width of the first portion is greater than the width of the second portion. The touch panel according to claim 17, wherein the first transparent wires connected to two adjacent electrode strip groups are located on the same side of the electrode strip groups, and the first portion is connected to the second portion and One of the electrode strip groups electrically connected to the first portion and the second portion, and the first portion and the electrode strip groups adjacent to the electrode strip group electrically connected to the first portion The interval between the other is larger than the interval between the second portion and the lead portion electrically connected to the other electrode strip group adjacent to the electrode strip group electrically connected to the first portion. The touch panel according to claim 1, further comprising a plurality of first opaque wires disposed in the opaque area on the first side of the light-transmitting area, and each of the first opaque wires is connected to a corresponding one One end of one of the first transparent wires, wherein each of the first opaque wires and the corresponding first transparent wire has a first connection area, and the first connection areas are arranged along the first direction. The touch panel according to claim 21, further comprising a plurality of second opaque wires disposed in the opaque area on the first side of the light-transmitting area, wherein each of the electrode string groups includes a first An electrode series and a second electrode series, each of the second opaque wires is electrically connected to one of the first electrode series and the second electrode series, and each of the second opaque wires and the corresponding one The first electrode series or the corresponding second electrode series has a second connection area, and one of the second connection areas overlaps one of the first connection areas. The touch panel according to claim 1, wherein each of the electrode strip groups includes a plurality of electrode portions, each of the electrode portions includes a plurality of strip portions, each of the electrode string groups includes a plurality of electrodes, and each of the electrode portions is respectively Overlaps with one of the corresponding electrodes, and the width of each of the strips closest to one of the electrode portions of the first transparent lead is larger than those of the electrodes not closest to the first transparent lead The width of each of the strip-shaped portions. The touch panel according to claim 1, wherein all the first transparent conductive wires respectively extend from one end of each of the electrode bar groups to the first side of the light transmitting region. A touch panel has a light-transmitting area and an opaque area, and the touch panel includes: a plurality of electrode strip groups respectively disposed in the light-transmitting area along a first direction; the plurality of first transparent areas A conductive wire is disposed in the light-transmitting area, and each of the first transparent conductive wires is respectively connected to one end of one of the electrode bar groups, wherein each of the first transparent conductive wires further includes a lead portion, which is different from that of the first conductive wire. One of one direction extends into the opaque area, one of the lead portions includes a first portion and a second portion, and a width of the first portion in the first direction is different from that of the first portion. The width of the two parts in the first direction; and a plurality of electrode series are disposed in the light-transmitting area along the second direction, respectively, and the electrode series are interleaved with the electrode groups. The touch panel according to claim 25, wherein the first transparent wires respectively connected to two adjacent electrode strip groups are located on the same side of the electrode strip groups, and the first part is closer to the second part One of the electrode strip groups electrically connected to the first part and the second part, and the width of the first part is smaller than the width of the second part. The touch panel according to claim 25, wherein the first transparent wires respectively connected to two adjacent electrode strip groups are located on the same side of the electrode strip groups, and the first part is closer to the second part One of the electrode strip groups electrically connected to the first portion and the second portion, and the first portion and the electrode strip groups adjacent to the electrode strip group electrically connected to the first portion The interval between the other is greater than the interval between the second portion and the other of the electrode strip groups not adjacent to the electrode strip group electrically connected to the first portion. The touch panel according to claim 25, wherein the opaque region includes a pad region located on a first side of the transparent region, and the touch panel further includes a plurality of first opaque wires disposed on the first opaque wire. In the opaque area on the first side of the light-transmitting area, and each of the first opaque wires is connected to one end of one of the first transparent wires, respectively, each of the first opaque wires and the corresponding first A transparent wire has a first connection area, and the first connection areas are arranged along the first direction. The touch panel according to claim 28, further comprising a plurality of second opaque wires disposed in the opaque area on the first side of the light-transmitting area, wherein each of the electrode string groups includes a first An electrode series and a second electrode series, each of the second opaque wires is electrically connected to one of the first electrode series and the second electrode series, and each of the second opaque wires and the corresponding one The first electrode series or the corresponding second electrode series has a second connection area, and one of the second connection areas overlaps one of the first connection areas. A touch panel has a light-transmitting area and an opaque area. The opaque area includes a pad area located on a first side of the light-transmitting area. The touch panel includes: a plurality of electrode strips. Groups are respectively arranged in the light transmitting area along a first direction, wherein the electrode strip groups include a first electrode strip group and a second electrode strip group, and the first electrode strip group is located on the second electrode A plurality of first transparent wires are disposed in the light-transmitting area, and each of the first transparent wires is respectively connected to one end of one of the electrode bar groups; the plurality of first wires An opaque wire is disposed in the opaque region on the first side of the light-transmitting region, and each of the first opaque wires is connected to one end of one of the first transparent wires, respectively, wherein each of the first opaque wires The lead and the corresponding first transparent lead have a first connection area, and the first connection areas are arranged along the first direction; a plurality of electrode series are arranged on the light transmission along the second direction, respectively. Area, and the electrode string groups are staggered with the electrode strip groups And a plurality of second opaque wires disposed in the opaque area on the first side of the light-transmissive area; wherein each of the electrode series includes a first electrode series and a second electrode series Each of the second opaque wires is electrically connected to one of the first electrode series and the second electrode series, and each of the second opaque wires is corresponding to the first electrode series or the corresponding first electrode series The two electrode series has a second connection region, and one of the second connection regions overlaps one of the first connection regions.