CN101840285B - Touch control device, touch control display panel and repairing method thereof - Google Patents

Abstract

The invention discloses a touch device, a touch display panel and a repair method thereof. The touch display panel includes a display panel and a touch sensing array. The touch sensing array is arranged on the display panel, and includes a plurality of first transparent sensing series, a plurality of second transparent sensing series, and a plurality of conductive repair marks. The first transparent sensing series is arranged along a first direction and includes a plurality of first transparent sensing pads electrically connected to each other; the second transparent sensing series is arranged along a second direction and includes a plurality of first transparent sensing pads electrically connected to each other. The second transparent sensing pads are electrically connected, and each first transparent sensing pad and each second transparent sensing pad are electrically isolated from each other. The conductive repair marks are disposed corresponding to the first transparent sensing pad or the second transparent sensing pad.

Description

Touch device and touch display panel and repair method thereof

technical field

The invention relates to a touch device, a touch display panel and a method for repairing a touch device, in particular to a touch device with conductive repair marks, a touch display panel and a repair method thereof.

Background technique

In today's various types of consumer electronic products, portable electronic products such as tablet computers, personal digital assistants (PDAs), mobile phones (mobile phones), satellite navigation systems (GPS) and audio-visual players have widely used touch panels. (touch panel), as a communication interface for human-machine data, so as to save the volume of electronic products.

The touch function of the touch display panel mainly comes from a touch sensing array. The touch sensing array has a plurality of horizontal sensing pads and vertical sensing pads for respectively sensing the horizontal or vertical coordinate axis of the input position. However, the known touch sensing arrays are often disconnected due to problems such as static electricity or scratches, and as long as one of the horizontal sensing pads or one of the vertical sensing pads is disconnected, the horizontal sensing or vertical sensing function here will be lost, resulting in the scrapping of the entire touch sensing array, greatly affecting the yield of the touch display panel. Therefore, in recent years, panel manufacturers have proposed various repair methods for touch display panels to repair disconnected touch sensing arrays.

In a known method of repairing a touch sensing array, a repair line is formed between two disconnected sensing pads, so that sensing signals can bypass the disconnection and be transmitted through the repair line. However, since the known sensing pads are usually made of transparent conductive materials such as indium tin oxide (ITO), it is difficult for the machine to correctly identify the position of the transparent sensing pads when forming the repair line, resulting in difficulties in alignment. . And before the repair line is formed, it is necessary to burn through the protective layer above the sensing pad to form a contact hole. If the sensing pad below is made of transparent material, the energy of the laser is not easy to concentrate and it is difficult to burn through the protective layer. Therefore, it is necessary to Higher energy can form contact holes, which becomes a less stable factor in the process. The above-mentioned situations all increase the difficulty in the repair process of the touch panel, and become a problem that needs to be solved urgently.

Contents of the invention

Therefore, the present invention proposes a touch device, a touch display panel, and a method for repairing the touch device, so as to enhance the positioning accuracy during repair and make it easier to form contact holes during repair.

A preferred embodiment of the present invention provides a touch display panel, including a display panel and a touch sensing array. The touch sensing array is disposed on the display panel and includes a plurality of first transparent sensing series, a plurality of second transparent sensing series and a plurality of conductive repair marks. The first transparent sensing series is arranged along a first direction and includes a plurality of first transparent sensing pads electrically connected to each other; the second transparent sensing series is arranged along a second direction and includes a plurality of first transparent sensing pads electrically connected to each other. The second transparent sensing pads are electrically connected, and each first transparent sensing pad and each second transparent sensing pad are electrically isolated from each other. The conductive repair marks are disposed corresponding to the first transparent sensing pad or the second transparent sensing pad. The protective layer covers the first transparent sensing series and the second transparent sensing series.

Another preferred embodiment of the present invention further provides a touch panel, which includes a substrate and a touch sensing array. The touch sensing array is disposed on the substrate and includes a plurality of first transparent sensing series, a plurality of second transparent sensing series and a plurality of conductive repair marks. The first transparent sensing series is arranged along a first direction and includes a plurality of first transparent sensing pads electrically connected to each other; the second transparent sensing series is arranged along a second direction and includes a plurality of first transparent sensing pads electrically connected to each other. The second transparent sensing pads are electrically connected, and each first transparent sensing pad and each second transparent sensing pad are electrically isolated from each other. The conductive repair mark arrangement corresponds to the first transparent sensing pad or the second transparent sensing pad arrangement. The protective layer covers the first transparent sensing series and the second transparent sensing series.

Another preferred embodiment of the present invention further proposes a method for repairing a touch device. Firstly, a touch device is provided. The touch device includes a substrate and a touch sensing array. The touch sensing array is disposed on the substrate and includes a plurality of first transparent sensing series, a plurality of second transparent sensing series and a plurality of conductive repair marks. The first transparent sensing series is arranged along a first direction and includes a plurality of first transparent sensing pads electrically connected to each other; the second transparent sensing series is arranged along a second direction and includes a plurality of first transparent sensing pads electrically connected to each other. The second transparent sensing pads are electrically connected, and each first transparent sensing pad and each second transparent sensing pad are electrically isolated from each other. The conductive repair marks are disposed corresponding to the first transparent sensing pad or the second transparent sensing pad. The protective layer covers the first transparent sensing series and the second transparent sensing series. Next, a repair process is performed, using the conductive repair mark as an alignment mark, and forming a repair line, which is electrically connected to the adjacent first transparent sensing pad, or is electrically connected to the adjacent second transparent sensing pad connect.

Since the present invention provides non-transparent conductive repair marks on the transparent sensing pads, in the subsequent repairing process, the machine can identify the positions of each transparent sensing pads, which can improve the positioning accuracy. On the other hand, the non-transparent conductive repair marks can also reflect and concentrate the laser energy in the subsequent repair process, so it is easier to form contact holes in the protective layer, which can greatly improve the overall efficiency of the repair process.

Description of drawings

In order to make the above and other objects, features, advantages and embodiments of the present invention more comprehensible, the accompanying drawings are described as follows:

FIG. 1 shows a schematic plan view of a touch device according to a first embodiment of the present invention;

2 and 3 are schematic structural diagrams of a touch device according to a first embodiment of the present invention;

FIG. 4 and FIG. 5 are schematic diagrams of the structure of the touch device in the repair state according to the first embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a touch device according to a second embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a touch device according to a third embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a touch device according to a fourth embodiment of the present invention;

9 and 10 are schematic structural diagrams of a touch device according to another embodiment of the present invention;

FIG. 11 shows a schematic structural diagram of a touch device in a repair state according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a touch device according to another embodiment of the present invention;

13 and 14 are schematic structural diagrams of a touch device according to another embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a touch device according to another embodiment of the present invention;

16 to 18 are schematic diagrams of touch display panels according to another three preferred embodiments of the present invention;

FIG. 19 is a flowchart of a method for repairing a touch device according to an embodiment of the present invention.

Among them, reference signs

10 Display panel 118 Bridge wire

100 Touch device 120 Patterned insulating layer

101 Substrate 120a Island insulation structure

102 Substrate 120b Insulation layer

102a Auxiliary Substrate 122a, 122b Conductive Repair Mark

103 Liquid crystal layer 124 Protective layer

104 Touch Sensing Array 126 Contact Hole

106 First direction 128 Repair line

108 first transparent sensing series 130 contact hole

110 Second direction 136 External surface

112 second transparent sensing series 138 inner surface

113 Cable 140 Steps

114 first transparent sensing pad 142 steps

115 Contact Pad 144 Steps

116 second transparent sensing pad 146 steps

Detailed ways

In order to enable those of ordinary skill in the technical field who are familiar with the present invention to further understand the present invention, several preferred embodiments of the present invention are enumerated below, and together with the accompanying drawings, the constitutional content and intended purpose of the present invention are described in detail. achieved effect.

Please refer to FIG. 1 , which is a schematic plan view of a touch device according to a first embodiment of the present invention. As shown in FIG. 1 , the touch device 100 of the present invention includes a substrate 102 and a touch sensing array 104 disposed on the substrate 102 . The substrate 102 can be various transparent soft substrates, or a hard substrate such as a glass substrate, a plastic substrate, or a quartz substrate. The touch sensing array 104 of this embodiment includes a plurality of first transparent sensing series 108 parallel to a first direction 106 (for example, the horizontal direction in FIG. 1 ), and a plurality of first transparent sensing series 108 parallel to a second direction 110 (for example, The second transparent sensing series 112 in the vertical direction shown in FIG. 1 , wherein the first direction 106 is substantially perpendicular to the second direction 110 . Each first transparent sensing series 108 includes a plurality of first transparent sensing pads 114 electrically connected to each other, and each second transparent sensing series 112 includes a plurality of second transparent sensing pads 116 and a plurality of bridges. Wire 118. As shown in FIG. 1 , the patterned insulating layer 120, such as an island-shaped insulating structure 120a, is disposed on two adjacent second transparent sensing pads 116 in the same second transparent sensing series 112, and each bridge wire 118 is correspondingly disposed on each island-shaped insulating structure 120 a to electrically connect two adjacent second transparent sensing pads 116 . In this way, the first transparent sensing series 108 and the second transparent sensing series 112 are insulated from each other, and can respectively sense the two-axis touch position on the substrate 102 in the first direction 106 and the second direction 110 . The first transparent sensing series 108 and the second transparent sensing series 112 are respectively connected to the peripheral contact pads 115 via the connection wires 113 . The contact pad 115 can be electrically connected to an external driving integrated circuit (IC) to drive the first transparent sensing series 108 and the second transparent sensing series 112 to achieve the purpose of sensing. The detailed driving method is in the art It is well known to those skilled in the art, so it will not be repeated here. In addition, it should be noted that if the substrate 102 is rotated 90 degrees counterclockwise or clockwise, for example, each first transparent sensing series 108 is parallel to the second direction 110 , and each second transparent sensing series 112 is parallel to the second direction 110 . The arrangement of the first direction 106 is still an equal change and modification of the present invention, which should fall within the scope of the present invention.

In this embodiment, the first transparent sensing pad 114 and the second transparent sensing pad 116 are made of the same layer of transparent conductive layer, and the material of the transparent conductive layer is, for example, indium tin oxide (ITO), indium oxide Zinc (indium zinc oxide, IZO), cadmium tin oxide (cadmium tin oxide, CTO), aluminum zinc oxide (aluminum zinc oxide, AZO) and indium zinc tin oxide (indium tin zinc oxide, ITZO), etc., but not as a limit. The patterned insulating layer 120 (such as the island-shaped insulating structure 120a) includes various insulating materials, such as organic materials or inorganic materials. The organic materials are, for example, benzocyclobutane (enzocyclobutane, BCB), cycloolefins, polyimide Amines, polyamides, polyesters, polyalcohols, polyethylene oxides, polyphenylenes, resins, polyethers, polyketones and other resins, inorganic materials such as silicon oxide, silicon nitride, nitrogen Silicon oxide, silicon carbide, aluminum oxide, etc., or a combination of the above, but not limited thereto, and the bridge wire 118 includes various metal conductive materials, such as aluminum, copper, silver, gold, titanium, molybdenum, tungsten, etc. But not limited to this.

In order to solve the known problem that the first transparent sensing pad 114 or the second transparent sensing pad 116 is difficult to align in the subsequent repair process due to its transparent material, the touch sensing array 104 of the present invention further includes multiple A non-transparent conductive repair mark 122 is correspondingly disposed on the first transparent sensing series 108 . The arrangement direction of the conductive repair marks 122 is substantially parallel to the first transparent sensing series 108 , that is, parallel to the first direction 106 , but other arrangements are also possible. For the detailed position of the conductive repair mark 122, please refer to FIG. 2 and FIG. 3, which are schematic structural views of the touch device according to the first embodiment of the present invention, wherein FIG. 2 is an enlarged schematic diagram of area A in FIG. 1, and FIG. 3 is a sectional view along the tangent line BB' in FIG. 2 . As shown in FIG. 2 and FIG. 3 , the conductive repair mark 122 is disposed on the first transparent sensing pad 114. In a preferred embodiment of the present invention, the conductive repair mark 122 is disposed on the first transparent sensing pad 114 near the island. the insulating structure 120a. That is to say, a set of conductive repair marks 122 are correspondingly disposed on the left and right sides of the island-shaped insulating structure 120 a close to the first transparent sensing pad 114 . The material of the conductive repair mark 122 includes various non-transparent conductive materials, such as metal, which can be aluminum, copper, silver, gold, titanium, molybdenum, tungsten, etc., but not limited thereto, and the first transparent The sensing pads 114 are electrically connected. The width of the conductive repair mark 122 is generally between 1 micron and 25 microns, and can have various shapes, such as a circle as shown in FIG. 2 , or a square, a triangle, a polygon, but not limited thereto. In addition, the touch device 100 of this embodiment further includes a protective layer 124 disposed on the touch sensing array 104, and its material includes various organic or inorganic protective materials, such as organic materials such as benzocyclobutene ( enzocyclobutane, BCB), cycloalkenes, polyimides, polyamides, polyesters, polyalcohols, polyethylene oxides, polyphenylenes, resins, polyethers, polyketones and other resins (resin), the inorganic material is, for example, silicon oxide, silicon nitride, silicon oxynitride, silicon carbide, aluminum oxide, etc., or a combination thereof, but not limited thereto.

The steps of manufacturing the touch device 100 of this embodiment include, for example, firstly forming a transparent conductive layer on the substrate 102 , and then patterning the transparent conductive layer to form the first transparent sensing pad 114 and the second transparent sensing pad 116 . Next, an island-shaped insulating structure 120 a is formed, and a bridge wire 118 is correspondingly formed on the island-shaped insulating structure 120 a, a conductive repair mark 122 is correspondingly formed on the first transparent sensing pad 114 , and finally a protective layer 124 is formed. In a preferred embodiment of the present invention, the conductive repair mark 122 and the bridging wire 118 can be manufactured in the same process, such as photolithography and etching steps or screen printing process, so as to simplify the process and reduce the manufacturing cost.

The conductive repair mark 122 of the present invention can be used as an alignment mark in the subsequent repair process of forming the touch sensing array 104 . When performing a repair process, such as using laser chemical vapor deposition process (Laser CVD), the conductive repair mark 122 of non-transparent material can be quickly aligned, and assist the machine to locate the first transparent sensing series 108 and the second The intersection of the transparent sensing series 112 (that is, the location of the island-shaped insulating structure 120 a ) facilitates the smooth formation of the repair line at the intersection of the subsequent repair process. The relative positions of the conductive repair marks and the repair lines and their connection methods are further described below. Please refer to FIG. 4 and FIG. 5 , which are schematic diagrams showing the structure of the touch device according to the first embodiment of the present invention under the condition of repair, wherein FIG. 5 is a schematic cross-sectional diagram drawn along line CC' in FIG. 4 . Please refer to FIG. 4 and FIG. 5 at the same time. If a disconnection is caused between two adjacent first transparent sensing pads 114 due to a defect in the region D, the first transparent sensing series 108 will lose its sensing function. Must be patched. As shown in FIG. 4 and FIG. 5 , the touch device 100 of this embodiment includes a repair line 128 and a plurality of contact holes 126 in addition to the above-mentioned components after the repair process. The contact holes 126 are disposed in the passivation layer 124 and respectively correspond to the conductive repair marks 122 located on two sides of the island-shaped insulating structure 120a. The repair wire 128 is selected from conductive materials, such as metal, which can be tungsten, molybdenum, silver, gold, aluminum, copper, etc., or other metal materials. The repair line 128 is disposed on the passivation layer 124 and correspondingly disposed in the contact hole 126 . Through the connection of the contact holes 126, the repair line 128 can be electrically connected to the conductive repair marks 122 located on both sides of the island-shaped insulating structure 120a, and also electrically connected to two adjacent first transparent sensing pads 114, so that the first transparent sensing pads 114 The sensing series 108 is not disconnected due to the defect in the region D, but can be connected in series again through the repair line 128 .

In addition to the above-mentioned function of the conductive repair mark 122 of the present invention as an alignment mark, on the other hand, since the contact hole 126 is correspondingly formed above the conductive repair mark 122, the laser process used to form the contact hole 126 in the protective layer 124 , the energy can be concentrated because the non-transparent conductive repair mark 122 below is easy to reflect, so that the contact hole 126 is more likely to be generated. Moreover, the conductive material of the conductive repair mark 122 will make it easier for the repair line 128 to be electrically connected to the transparent sensing pad to be repaired, thereby increasing the success rate of repair.

Please refer to FIG. 6 , which is a schematic structural diagram of a touch device according to a second embodiment of the present invention. In addition to being disposed on the first transparent sensing pad 114 , the conductive repair mark 122 of the present invention can also be disposed on the second transparent sensing pad 116 . As shown in FIG. 6 , the conductive repair mark 122 may include a conductive repair mark 122 a and a conductive repair mark 122 b. The conductive repair mark 122a is disposed on the first transparent sensing pad 114 as a repair alignment mark in the first direction 106 (ie, the aforementioned embodiment); the conductive repair mark 122b is disposed on the second transparent sensing pad 116 as a repair alignment mark in the first direction 106; Repair alignment marks in the second direction 110 . If the second transparent sensing pad 116 needs to be repaired due to the defect in the region D, the repair line 128 can be provided through the conductive repair mark 122 b. The implementation and material of the conductive repair mark 122b and the method of forming the repair line 128 in the subsequent repair process are substantially the same as those of the conductive repair mark 122a in the foregoing embodiment, and will not be repeated here. It is worth mentioning that, in order to increase the degree of discrimination between the conductive repair mark 122a and the conductive repair mark 122b, the conductive repair mark 122a and the conductive repair mark 122b can have different shapes, for example, the conductive repair mark 122a is a circle, while the conductive repair mark 122a The mark 122b is rectangular, but not limited thereto. In addition, in another embodiment of the present invention, only the conductive repair mark 122b on the second direction 110 can be provided, and the conductive repair mark 122a on the first direction 106 can not be provided, which can be done appropriately according to the situation of the product. Adjustment. On the other hand, the plane layout of the repair line 128 of the present invention can be as shown in FIG. 4, which is a linear connection, or as shown in FIG. In another embodiment, the connection line 128 bypasses the area D and presents a curved connection with at least one turning point.

Please refer to FIG. 7 , which is a schematic structural diagram of a touch device according to a third embodiment of the present invention. The touch device of this embodiment may be provided with more than one set of conductive repair marks 122 on both sides of the island-shaped insulating structure 120a, for example, two or more sets of conductive repair marks 122 at the same time. As shown in FIG. 7, two sets (that is, four) of conductive repair marks 122a are arranged on the first transparent sensing pads 114 on the left and right sides of the island-shaped insulating structure 120a; The transparent sensing pad 116 is also provided with 2 sets (ie 4) of conductive repair marks 122b. One of the advantages of this embodiment is that when the repair line 128 is subsequently formed, two or more repair lines 128 can be formed on two adjacent transparent conductive pads at the same time, so the first sense of transparency after repair can be effectively reduced. Impedance on the sensing series 106 (or the second transparent sensing series 112). Please refer to FIG. 8 , which is a schematic structural diagram of a touch device according to a fourth embodiment of the present invention. As shown in FIG. 8 , repair lines 128 can also be formed on more than two groups of contact holes 126 at the same time, and electrically connect more than two groups of conductive repair marks 122 at the same time, which can also effectively achieve the effect of reducing impedance.

In addition to being applied to the structure of the touch sensing array 104 described above in FIGS. 1 to 8 , the conductive repair mark 122 of the present invention can also be applied to other styles of the touch sensing array 104 . Please refer to FIG. 9 and FIG. 10 , which are schematic structural diagrams of a touch device according to another embodiment of the present invention, wherein FIG. 10 is a cross-sectional view along EE' in FIG. 9 . As shown in FIG. 9 , the touch sensing array 104 of this embodiment includes a first transparent sensing pad 114 , a second transparent sensing pad 116 , a bridge wire 118 , an island-shaped insulating structure 120 a and conductive repair marks 122 a, 122 b. The structure of the touch sensing array 104 of this embodiment is substantially the same as that of the embodiment shown in FIG. 2 , with one difference being that the order of the bridge wires 118 , the island-shaped insulating structure 120 a and the first transparent sensing pad 114 is different. For example, in the steps of manufacturing the touch device 100 of this embodiment, the bridge wires 118 and the conductive repair marks 122a, 122b are firstly formed on the substrate 102, and then the island-shaped insulating structure 120a is formed to be correspondingly disposed on the bridge wires 118, and finally The first transparent sensing pad 114 and the second transparent sensing pad 116 are formed simultaneously by using the same transparent conductive layer. In this embodiment, two adjacent second transparent sensing pads 116 can be connected to each other through the bridge wire 118 under the island-shaped insulating structure 120a, while the first transparent sensing pad 114 and the second transparent sensing pad 116 It can also be electrically insulated by the island-shaped insulating structure 120a. In this embodiment, the bridging wire 118 and the conductive repair marks 122a, 122b can be formed together in the same step to save process time, but the present invention is not limited thereto. The structure of this embodiment can be matched with the aforementioned embodiments of the conductive repair marks 122 a , 122 b and the repair line 128 in FIGS. 2 to 8 . For example, please refer to FIG. 11 , which is a schematic structural diagram of a touch device in a repair state according to an embodiment of the present invention. As shown in FIG. 11 , through the alignment mark function provided by the conductive repair mark 122a, the repair line 128 will be formed on the protective layer 124 and correspondingly arranged in the contact hole 126 to electrically connect two adjacent first transparent The sensing pad 114 is used to repair the disconnection caused by the area D.

Please refer to FIG. 12 , which is a schematic structural diagram of a touch device according to another embodiment of the present invention. As shown in FIG. 12 , the first transparent sensing pad 114 is composed of a transparent conductive layer, while the second transparent sensing series 112 (including the second transparent sensing pad 116 and the bridge wire 118 ) is composed of another layer of transparent conductive layer. The island-shaped insulating structure 120a is disposed between two different transparent conductive layers and corresponds to the junction of each first sensing series 108 and the second sensing series 112 respectively. In this embodiment, the conductive repair mark 122 is also disposed on the first transparent sensing pad 114 or the second transparent sensing pad 116 , and its implementation can refer to the foregoing descriptions of FIG. 2 to FIG. 8 , and will not be repeated here.

Please refer to FIG. 13 and FIG. 14 , which are schematic diagrams illustrating the structure of a touch device according to another embodiment of the present invention, wherein FIG. 13 is a schematic cross-sectional view along the tangent line FF' in FIG. 14 . In this embodiment, the first transparent sensing pad 114 and the second transparent sensing pad 116 are both composed of the same transparent conductive layer. An insulating layer 120 b (not shown in FIG. 13 ), a plurality of contact openings 130 , a bridge wire 118 and a protection layer 124 are disposed on the first transparent sensing pad 114 and the second transparent sensing series 112 . The contact openings 130 are located in the insulating layer 120b, and are correspondingly disposed between two adjacent first transparent sensing pads 114, and the bridge wires 118 are electrically connected to the two adjacent first transparent sensing pads 114 respectively through these contact openings 132. connect. The formation method of the touch device of this embodiment is, for example, firstly forming the first transparent sensing pad 114 and the second transparent sensing pad 116 on the substrate 102, then forming the conductive repair mark 122b, and then forming the insulating layer 120b to cover the first transparent sensing pad 116. The transparent sensing pad 114 is on the second transparent sensing pad 116 and the conductive repair mark 122b. Next, a contact opening 130 is formed in the insulating layer 120b, and a bridging wire 118 is formed on the insulating layer 120b and in the contact opening 130, so that two adjacent second transparent sensing pads 116 are electrically connected. In this embodiment, the formation sequence of the conductive repair mark 122b and the first transparent sensing pad 114 and the second transparent sensing pad 116 can be reversed, for example, the conductive repair mark 122b is formed first, and then the first transparent sensing pad 114 and the second transparent sensing pad 114 are formed. Transparent sensing pad 116 . In the foregoing embodiments, the conductive repair mark 122b is in electrical contact with the first transparent sensing pad 114 and the second transparent sensing pad 116, which not only has a good repair effect, but also reduces the contact between the first transparent sensing pad 114 and the second transparent sensing pad. The sheet resistance of the two transparent sensing pads 116 improves the sensing sensitivity.

Alternatively, in another embodiment of the present invention, the bridging wire 118 may be formed first, and then the insulating layer 120 b is formed, and then the first transparent sensing pad 114 and the second transparent sensing pad 116 are formed. Please refer to FIG. 15 , which is a schematic structural diagram of a touch device according to another embodiment of the present invention. As shown in FIG. 15 , the bridging wires 118 and the conductive repair marks 122 b are firstly formed on the substrate 102 . In a preferred embodiment of the present invention, the bridging wire 118 and the conductive repair mark 122b can be formed at the same time, but not limited thereto. Next, an insulating layer 120b is formed to cover the bridging wires 118 and the conductive repair marks 122b, and a contact opening 130 is formed in the insulating layer 120b. Finally, a bridging wire 118 is formed on the insulating layer 120 b and in the contact hole 130 , so that two adjacent second transparent sensing pads 116 are electrically connected through the bridging wire 118 . The structures of the embodiments shown in FIGS. 13 to 15 can be matched with the conductive repair marks 122 and repair lines 128 in any of the aforementioned embodiments in FIGS. 2 to 7 , so details will not be repeated here. In the foregoing embodiments, although the conductive repairing marks 122b are not in electrical contact with the first transparent sensing pad 114 and the second transparent sensing pad 116 , they still have a good repairing effect.

The touch device 100 of the present invention can be used alone as a touch panel with touch function, or can be combined with a display panel 10 to form a touch display panel. Please refer to FIG. 16 to FIG. 18 , which are schematic diagrams of touch display panels according to another three preferred embodiments of the present invention. As shown in FIG. 16 , the substrate 102 of the touch device 100 of this embodiment is also used as one of the substrates of a display panel 10 . For example, if the display panel 10 is a liquid crystal display panel, it includes two substrates 101 , 102 , and a liquid crystal layer 103 disposed between the substrates 101 , 102 . The substrate 102 can be a color filter glass substrate of a liquid crystal display panel, wherein the touch sensing array 104 is disposed on an outer surface 136 of the substrate 102 of the display panel 10 , as shown in FIG. 16 . In another embodiment of the present invention, the touch display array 104 can also be disposed on an inner surface 138 of the substrate 102 of the display panel 10 facing the liquid crystal layer 103 , as shown in FIG. 17 . In another embodiment of the present invention, please refer to FIG. 18 , an auxiliary substrate 102 a may be added on the substrate 102 , and the auxiliary substrate 102 a is disposed between the touch sensing array 104 and the display panel 10 . For example, the touch sensing array 104 is disposed on one side of the auxiliary substrate 102 a, and the other side is attached to the substrate 102 of the display panel 10 . In the above embodiments, the display panel 10 may be a liquid crystal display panel, an organic light emitting display panel, an electrophoretic display panel or a plasma display panel, but it is not limited thereto. When the touch sensing array 104 is arranged on the display panel 10, the conductive repair marks 122 in the touch sensing array 104 are preferably aligned and arranged on the light-shielding area in the display area, such as on the black matrix (BM) , or on the opaque capacitor area, avoid visual visibility. The width of the conductive repair mark 122 can range from 0.1 to 100 microns, preferably from 0.5 to 50 microns, more preferably from 1 to 25 microns, but it is not limited thereto, and its size design can be adjusted according to actual needs.

The present invention further provides a method for repairing a touch device, please refer to FIG. 19 , and please refer to FIGS. 1 to 18 together. FIG. 19 is a flowchart of a method for repairing a touch device according to an embodiment of the present invention. As shown in Figure 19, the method of the present invention comprises the following steps:

Step 140: start;

Step 142: Provide a touch device, the touch device includes a substrate and a touch sensing array. The touch sensing array is disposed on the substrate and includes a plurality of first transparent sensing series, a plurality of second transparent sensing series and a plurality of conductive repair marks. Each first transparent sensing series is arranged along a first direction and includes a plurality of first transparent sensing pads electrically connected to each other; each second transparent sensing series is arranged along a second direction and includes a plurality of mutually electrically connected pads. The second transparent sensing pads are electrically connected, and each first transparent sensing pad and each second transparent sensing pad are electrically isolated from each other. The conductive repair marks are disposed corresponding to the first transparent sensing pad or the second transparent sensing pad.

Step 144: Perform a repair process, use the conductive repair mark as an alignment mark, and form a repair line, electrically connected with two adjacent first transparent sensing pads, or with two adjacent second transparent sensing pads The sensing pads are electrically connected.

Step 146: end.

In step 142 , for various implementations of the conductive repair mark 122 , please refer to FIGS. 2 to 8 , and for various implementations of the touch sensing array 104 , please refer to FIGS. 9 to 15 . It can be understood that various implementations of the conductive repair marks 122 can cooperate with various implementations of the touch sensing array 104 , and the implementation combinations thereof are not listed here.

In addition, in step 144 , the conductive repair mark 122 is used as an alignment mark, and a repair line 128 electrically connected to a part of the conductive repair mark 122 is formed. For example, a plurality of contact holes 126 corresponding to the conductive repair marks 122 may be formed in the passivation layer 126 using a laser process. Next, a deposition process, such as a laser chemical vapor deposition process (laser CVD), is used to directly position and form the repair line 128 . The planar layout for forming the repair line 128 is as mentioned above, and may be a straight conductive repair mark 128 as shown in FIG. 4 , or a curved conductive repair mark 128 as shown in FIG. 6 .

To sum up, since the present invention provides a non-transparent conductive repair mark on the transparent sensing pad, it can not only be used as an alignment mark for the machine in the subsequent repair process, but also make it easier to form contact holes on it. , thereby improving the overall efficiency of the repair process. In addition, the present invention also proposes the implementation of several repair lines and conductive repair marks, which can effectively reduce the impedance of the touch sensing array after repair, and improve the reliability of the overall product.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (24)

1. A touch display panel, characterized in that it comprises: a display panel; A touch sensing array, arranged on the display panel, the touch sensing array includes: a plurality of first transparent sensing series arranged along a first direction, wherein each of the first transparent sensing series includes A plurality of first transparent sensing pads electrically connected to each other; a plurality of second transparent sensing series arranged along a second direction, wherein each second transparent sensing series includes a plurality of first transparent sensing pads electrically connected to each other Two transparent sensing pads, and the first transparent sensing pads and the second transparent sensing pads are electrically isolated from each other; a plurality of conductive repair marks, wherein the conductive repair marks include a plurality of first conductive repair marks, respectively disposed on above or below two adjacent first transparent sensing pads of the same first transparent sensing series; and a protective layer covering the first transparent sensing series, the second transparent sensing series and the Conductive patch markers. 2. The touch display panel according to claim 1, wherein the conductive repair marks comprise metal materials. 3. The touch display panel according to claim 1, wherein the width of each of the conductive repair marks is substantially between 1 micron and 25 microns. 4. The touch display panel according to claim 1, wherein the first conductive repair marks are respectively electrically connected to two adjacent first transparent sensing pads. 5. The touch display panel according to claim 1, further comprising: A first repair line is arranged on the protective layer between two adjacent first transparent sensing pads with broken lines between them, and passes through a plurality of first contact holes in the protective layer and the first contact holes. A conductive repair mark electrically connects two adjacent first transparent sensing pads. 6. The touch display panel according to claim 1, wherein the conductive repair marks further comprise a plurality of second conductive repair marks, which are respectively arranged on two adjacent ones of the same second transparent sensing series. The second transparent sensing pads are electrically connected to two adjacent second transparent sensing pads respectively. 7. The touch display panel according to claim 6, further comprising: A second repairing line is arranged on the protective layer between two adjacent second transparent sensing pads with broken lines between them and passes through the plurality of second contact holes and the second contact holes in the protective layer. The conductive repair marks are electrically connected to two adjacent second transparent sensing pads. 8. The touch display panel according to claim 1, wherein the first transparent sensing pads and the second transparent sensing pads are composed of the same transparent conductive layer, and the touch sensing array further comprises A plurality of island-shaped insulating structures are respectively arranged between two adjacent first transparent sensing pads of the same first transparent sensing series, and a plurality of bridge wires are respectively arranged in each of the island-shaped insulating structures and each of the bridging wires is electrically connected to two adjacent second transparent sensing pads. 9. The touch display panel according to claim 1, wherein the first transparent sensing pads are formed by a first transparent conductive layer, and the second transparent sensing pads are formed by a second transparent conductive layer Composition, the touch sensing array further includes a plurality of island-shaped insulating structures disposed between the first transparent conductive layer and the second transparent conductive layer, and each of the island-shaped insulating structures corresponds to each of the first transparent sensing The overlapping positions of the sensing series and each of the second transparent sensing series. 10. The touch display panel according to claim 1, wherein the first transparent sensing pads and the second transparent sensing pads are composed of the same transparent conductive layer, and the touch sensing array is further It includes an insulating layer covering the first transparent sensing pads and the second transparent sensing pads, and a plurality of bridge wires arranged on the insulating layer and respectively corresponding to two phases of the same second transparent sensing series Between the adjacent second transparent sensing pads, the insulating layer includes a plurality of contact openings, and each of the bridging wires is electrically connected to two adjacent second transparent sensing pads through the contact openings. 11. The touch display panel according to claim 1, wherein the display panel has an inner surface, and the touch sensing array is disposed on the inner surface of the display panel. 12. The touch display panel according to claim 1, wherein the display panel has an outer surface, and the touch sensing array is disposed on the outer surface of the display panel. 13. The touch display panel according to claim 1, further comprising an auxiliary substrate, wherein the display panel has an outer surface, the touch sensing array is disposed on the outer surface of the display panel, And the auxiliary substrate is disposed between the touch sensing array and the display panel. 14. A touch device, characterized in that it comprises: a substrate; and A touch sensing array, disposed on the substrate, the touch sensing array includes: a plurality of first transparent sensing series arranged along a first direction, wherein each of the first transparent sensing series includes multiple a plurality of first transparent sensing pads electrically connected to each other; a plurality of second transparent sensing series arranged along a second direction, wherein each of the second transparent sensing series includes a plurality of second electrically connected to each other transparent sensing pads, and these first transparent sensing pads and these second transparent sensing pads are electrically isolated from each other; a plurality of conductive repair marks, wherein these conductive repair marks include a plurality of first conductive repair marks, respectively arranged on the same above or below two adjacent first transparent sensing pads of one of the first transparent sensing series; and a protective layer covering the first transparent sensing series, the second transparent sensing series and the conductive pads patch mark. 15. A method for repairing a touch device, comprising: Provide a touch device, the touch device includes: a substrate; and a touch sensing array, arranged on the substrate, the touch sensing array includes: a plurality of first transparent sensing series, along a first Arranged in a direction, wherein each of the first transparent sensing series includes a plurality of first transparent sensing pads electrically connected to each other; a plurality of second transparent sensing series are arranged in a second direction, wherein each of the first transparent sensing pads The two transparent sensing series include a plurality of second transparent sensing pads electrically connected to each other, and the first transparent sensing pads and the second transparent sensing pads are electrically isolated from each other; a plurality of conductive repair marks, wherein these The conductive repair marks include a plurality of first conductive repair marks, respectively arranged on or under the two adjacent first transparent sensing pads of the same first transparent sensing series; and a protective layer covering the first transparent sensing pads. the sensing series, the second transparent sensing series and the conductive repair marks; and Perform a repair process, use these conductive repair marks as alignment marks, and form a repair line between two adjacent first transparent sensing pads with a disconnection between them, and form a repair line with the adjacent first transparent sensing pads. The transparent sensing pad is electrically connected. 16 . The method for repairing a touch device according to claim 15 , wherein the first conductive repair marks are respectively electrically connected to two adjacent first transparent sensing pads. 17. The method for repairing a touch device according to claim 15, wherein the conductive repair marks further comprise a plurality of second conductive repair marks, which are respectively arranged on two phases of the same second transparent sensing series adjacent to these second transparent sensing pads, and are respectively electrically connected to two adjacent to these second transparent sensing pads; the step of performing a repair process also includes using these second conductive repair marks as alignment marks, And a repair line is formed between two adjacent second transparent sensing pads with broken lines between them, and is electrically connected with these adjacent second transparent sensing pads. 18. The method for repairing a touch device according to claim 15, characterized in that, the touch sensing array further comprises a plurality of island-shaped insulating structures respectively disposed on two sides of the same first transparent sensing series. Between the adjacent first transparent sensing pads, and a plurality of bridging wires are correspondingly arranged on each of the island-shaped insulating structures, and each of the bridging wires is electrically connected to two adjacent second transparent sensing pads. connect. 19. The method for repairing a touch device according to claim 18, wherein the conductive repair marks and the bridging wires are formed simultaneously. 20. The method for repairing a touch device according to claim 15, wherein the touch sensing array further comprises an insulating layer covering the first transparent sensing pads and the second transparent sensing series, and a plurality of bridging wires disposed on the insulating layer and respectively corresponding between two adjacent second transparent sensing pads of the same second transparent sensing series, the insulating layer includes a plurality of contact openings, and Each of the bridging wires is electrically connected to two adjacent second transparent sensing pads through the contact openings. 21. The method for repairing a touch device according to claim 15, wherein the step of forming the repair line comprises: forming a plurality of contact holes in the protection layer, respectively corresponding to the conductive repair marks; and The repairing line is formed on the protective layer, so that the repairing line is electrically connected to a part of the conductive repairing mark through the contact holes. 22. The method for repairing a touch device according to claim 15, wherein the step of forming the repair line comprises laser chemical vapor deposition. 23. The method for repairing a touch device according to claim 18, wherein forming the touch sensing array comprises the following steps: a. forming the first transparent sensing series and the second transparent sensing pads; b. forming a patterned insulating layer covering part of the first transparent sensing series; c. forming the bridging wires and the conductive repair marks, so that the bridging wires electrically connect two adjacent second transparent sensing pads to form each of the second transparent sensing series; and d. forming the protection layer to cover the first transparent sensing series, the second transparent sensing series, and the conductive repair marks. 24. The method for repairing a touch device according to claim 18, wherein forming the touch sensing array comprises the following steps: a. forming the bridging wires and the conductive repair marks, and placing them on the substrate; b. forming a patterned insulating layer covering each part of the bridge wire; c. Form each of the first transparent sensing series and each of the second transparent sensing pads, so that the bridge wires are electrically connected to two adjacent second transparent sensing pads to form each of the second transparent sensing pads serial; and d. forming the protection layer to cover the first transparent sensing series and the second transparent sensing series.

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