CN109375807B - Manufacturing method of touch panel and touch panel - Google Patents
Manufacturing method of touch panel and touch panel Download PDFInfo
- Publication number
- CN109375807B CN109375807B CN201811257233.4A CN201811257233A CN109375807B CN 109375807 B CN109375807 B CN 109375807B CN 201811257233 A CN201811257233 A CN 201811257233A CN 109375807 B CN109375807 B CN 109375807B
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- China
- Prior art keywords
- substrate
- sub
- touch
- touch electrode
- electrode blocks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention provides a manufacturing method of a touch panel, which comprises the following steps: step S1: providing a substrate and a conducting layer covering the substrate, and patterning the conducting layer to obtain a plurality of touch electrode blocks arranged on the substrate at intervals; step S2: cutting the substrate to obtain a first sub-substrate and a second sub-substrate, wherein a plurality of touch electrode blocks are respectively formed on the first sub-substrate and the second sub-substrate; step S3: and vertically laminating the first sub-substrate and the second sub-substrate to enable the touch electrode blocks on the first sub-substrate and the touch electrode blocks on the second sub-substrate to be mutually insulated. The invention also provides a touch panel.
Description
Technical Field
The invention relates to a manufacturing method of a touch panel and the touch panel manufactured by the method.
Background
In the prior art, various touch panels often have different sizes or shapes, and accordingly, in the manufacturing process of the touch panel, it is necessary to develop light masks with various shapes and sizes to match with specific shapes and sizes of various structures (such as touch electrodes) on the touch panel, and in many cases, the required amount of each structure may not be large, but various structures need to be manufactured, so that the cost of placing a bet on a jig (such as a light mask) is too high, which is very disadvantageous to the cost control of products.
Disclosure of Invention
One aspect of the present invention provides a method for manufacturing a touch panel, including the steps of:
step S1: forming a conductive layer on a substrate, and patterning the conductive layer to form a plurality of touch electrode blocks arranged at intervals;
step S2: cutting the substrate to obtain a first sub-substrate and a second sub-substrate which are separated from each other, wherein a plurality of touch electrode blocks are formed on the first sub-substrate and the second sub-substrate respectively;
step S3: and laminating the first sub-substrate and the second sub-substrate to enable the touch electrode blocks on the first sub-substrate and the touch electrode blocks on the second sub-substrate to be mutually insulated.
Another aspect of the present invention provides a touch panel, including:
a first sub-substrate;
the touch control device comprises a first sub-substrate, a second sub-substrate and a plurality of touch control electrode blocks, wherein the first sub-substrate and the second sub-substrate are stacked, and the touch control electrode blocks on the first sub-substrate and the touch control electrode blocks on the second sub-substrate are mutually insulated;
and the touch electrode block on the first sub-substrate and the touch electrode block on the second sub-substrate are formed in the same patterning process.
According to the method for manufacturing the touch panel provided by the embodiment of the invention, the touch driving electrodes and the touch sensing electrodes (namely the touch electrode blocks) are formed on the substrate through a patterning process, and the structure of the touch panel is finally formed through cutting and stacking, so that even though the shapes and the sizes of touch products to be manufactured finally are different, the first sub-substrate and the second sub-substrate on which the touch electrode blocks are formed are cut according to the shapes and the sizes of the touch products during cutting, the touch driving electrodes and the touch sensing electrodes are formed in the patterning process, the touch products with different shapes and sizes can use the same photomask to form the touch electrode blocks, the jig cost is saved, and the cost control of the touch products is facilitated.
Drawings
Fig. 1 is a flowchart of a method for manufacturing a touch panel according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of the touch panel in step S1 in fig. 1.
Fig. 3 is a schematic structural diagram of the touch panel in step S2 in fig. 1.
Fig. 4 is a schematic structural diagram of the touch panel in step S3 in fig. 1.
Fig. 5 is a schematic structural diagram of the touch panel in step S4 in fig. 1.
Fig. 6 is a schematic structural diagram of the touch panel in step S5 in fig. 1.
Description of the main elements
| Step (ii) of | S1、S2、S3、S4、 |
| Touch panel | |
| 100 | |
| |
11 |
| |
111 |
| |
112 |
| |
12 |
| |
121 |
| |
122 |
| Connecting |
130 |
| |
140 |
| The |
141 |
| |
142 |
| Width of | d1、d2、 |
| Control circuit | |
| 15 | |
| |
151 |
| |
152 |
| Display area | AA |
| Non-display area | NA |
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
Example one
Referring to fig. 1, a method for manufacturing a touch panel provided in this embodiment includes:
step S1: forming a conductive layer on a substrate, and patterning the conductive layer to form a plurality of touch electrode blocks arranged at intervals;
step S2: cutting the substrate to obtain a first sub-substrate and a second sub-substrate which are separated from each other, wherein a plurality of touch electrode blocks are formed on the first sub-substrate and the second sub-substrate respectively;
step S3: laminating the first sub-substrate and the second sub-substrate, and insulating the touch electrode block on the first sub-substrate and the touch electrode block on the second sub-substrate from each other;
step S4: providing a cover plate, forming a plurality of connecting pads on the cover plate, and connecting the connecting pads with the contact pads in a one-to-one correspondence manner;
step S5: and connecting each connecting pad with the control circuit to establish the electric connection between the touch electrode block and the control circuit.
Referring to fig. 2, in step S1, a substrate 11 is provided, a conductive layer 12 is formed on a surface of the substrate 11, the conductive layer 12 is patterned to form a plurality of touch electrode blocks 121 spaced apart and insulated from each other, in this embodiment, each touch electrode block 121 is a rectangular strip, and the touch electrode blocks 121 are substantially parallel to each other. In other embodiments, the touch electrode block 121 may have other shapes, such as a diamond shape.
Referring to fig. 3, in step S2, the substrate 11 is cut (along the dotted line in fig. 3) to obtain a first sub-substrate 111 and a second sub-substrate 112. A plurality of touch electrode blocks 121 are formed on the first sub-substrate 111 and the second sub-substrate 112, respectively. The shape and size of the first sub-substrate 111 and the second sub-substrate 112 and the number of the touch electrode blocks 121 formed thereon are determined according to the shape and size of the final product to be manufactured, in this embodiment, the shape of the first sub-substrate 111 and the second sub-substrate 112 that are cut out is substantially rectangular, fig. 3 only shows that the number of the touch electrode blocks 121 on the first sub-substrate 111 and the second sub-substrate 112 is 4, and in an embodiment, the number of the touch electrode blocks 121 may be more than 4.
In an embodiment, the size of the touch electrode block 121 on the first sub-substrate 111 and the second sub-substrate 112 obtained by cutting the substrate 11 is smaller than the size of the touch electrode block 121 formed on the substrate 11 when the substrate is not cut.
In the embodiment, after the substrate 11 is cut to obtain the separated first substrate 111 and the second substrate 112, the substrate 11 has a remaining portion, and can be continuously cut to manufacture more touch structures.
Referring to fig. 3 and 4, in step S3, the first sub-substrate 111 and the second sub-substrate 112 having the touch electrode pads 121 formed thereon are stacked, such that the touch electrode pads 121 on the first sub-substrate 111 and the touch electrode pads 121 on the second sub-substrate 112 are stacked and insulated from each other. In this embodiment, the stacking method is: the touch electrode blocks 121 on the first sub-substrate 111 and the second sub-substrate 112 are bonded by a transparent insulating adhesive. In an embodiment, other lamination methods may be adopted, for example, a surface of the first sub-substrate 111 not provided with the touch electrode block 121 is bonded to a surface of the second sub-substrate 112 not provided with the touch electrode block 121, or an insulating adhesive is provided between a surface of the first sub-substrate 111 provided with the touch electrode block 121 and a surface of the second sub-substrate 112 provided with the touch electrode block 121.
The extending directions of the lengths of the touch electrode blocks 121 on the first sub-substrate 111 and the touch electrode blocks 121 on the second sub-substrate 112 are mutually crossed, and in this embodiment, are mutually perpendicular. In an embodiment, the extending directions of the touch electrode blocks 121 on the first sub-substrate 111 and the touch electrode blocks 121 on the second sub-substrate 112 may intersect to form other angles.
In one embodiment, after the step S3 is completed, the touch electrode block 121 formed on one of the first sub-substrate 111 and the second sub-substrate 112 is used as a touch driving electrode, the touch electrode block 121 formed on the other one is used as a touch sensing electrode, and the touch electrode blocks 121 on the first sub-substrate 111 and the second sub-substrate 112 cooperate to form a dual-layer mutual capacitive touch structure. In other embodiments, the touch electrode pads 121 on the first sub-substrate 111 and the second sub-substrate 112 may also cooperate to form a double-layer self-contained touch structure.
In the method for manufacturing a touch panel according to this embodiment, the touch driving electrodes and the touch sensing electrodes (i.e., the touch electrode blocks 121) are formed on the substrate 11 by a patterning process, and are cut and stacked to finally form the structure of the touch panel, so that even if the shapes and sizes of the touch products to be manufactured are different, the first sub-substrate 111 and the second sub-substrate 112 on which the touch electrode blocks 121 are formed are cut according to the shapes and sizes of the touch products during cutting, so that the touch driving electrodes and the touch sensing electrodes are formed in the patterning process, and the touch products with different shapes and sizes can use the same photomask to form the touch electrode blocks 121.
If deviation occurs in the cutting process, the cut part is damaged, the cut part can be cut continuously, the damaged part is removed, the size of the damaged part is smaller, and the damaged part can be used on a touch product matched with the shape and size of the touch product.
Referring to fig. 3 and fig. 5, in the touch panel manufacturing method provided in this embodiment, in the step S1, the touch pad 122 is formed at the end of each touch electrode block 121 in the length extending direction while the plurality of touch electrode blocks 121 are patterned. In step S4: a cover plate 140 is provided, and a plurality of connection pads are formed on the cover plate 140, and the connection pads are connected with the contact pads in a one-to-one correspondence manner.
Let the width of the touch electrode pad 121 be denoted as d1, the width of the contact pad 122 be denoted as d2, and the width of the connection pad 130 be denoted as d 3. The width d2 of the contact pad 122 is larger than the width d2 of the touch electrode block 121, and in an embodiment, the width d2 of the contact pad 122 is 2 to 10 times the width d3 of the connection pad, so that a larger error range can be allowed when the contact pad 122 and the connection pad 130 are electrically contacted, the accuracy requirement of the electrical connection is reduced, and the electrical connection failure is favorably avoided. The contact pads 122 and the connection pads 130 may be made of conductive materials such as metal, alloy, etc.
In this embodiment, the step S4 further includes providing a cover plate 140, forming the connecting pad 130 on the cover plate 140, and disposing the stacked first sub-substrate 111 and the second sub-substrate 112 on the cover plate 140 to electrically connect the connecting pad 122 and the connecting pad 130. In one embodiment, the cover plate 140 is a glass cover plate.
In this embodiment, the connecting pads 130 are formed on two adjacent first and second sides 141 and 142 of the cover plate 140. The touch electrode pads 121 on the first sub-substrate 111 are electrically connected to the connecting pads 130 on the second side 142 through the contact pads 122 in a one-to-one correspondence manner, and the touch electrode pads 121 on the second sub-substrate 112 are electrically connected to the connecting pads 130 on the first side 141 through the contact pads 122 in a one-to-one correspondence manner. And the contact pads 122 and the connection pads 130 are bonded by conductive adhesive.
Although the touch electrode pads 121 on the first sub-substrate 111 and the second sub-substrate 112 are stacked and disposed on different planes, and all the connection pads 130 on the first side 141 and the second side 142 are disposed on the same plane, in an actual product, the substrate 11 is a flexible substrate, the first sub-substrate 111 and the second sub-substrate 112 are flexible, and the thicknesses of the first sub-substrate 111, the second sub-substrate 112 and the touch electrode pads 121 are smaller, so that the first sub-substrate 111 and the touch electrode pads 121 thereon on the upper layer can be directly bent to the connection pads 122 to be electrically connected with the connection pads 130.
Referring to fig. 3 and 6 together, in step S5: and connecting each connecting pad with the control circuit to establish the electric connection between the touch electrode block and the control circuit.
In the present embodiment, the control circuit 15 includes a first control circuit 151 and a second control circuit 152, wherein the first control circuit 151 and the second control circuit 152 are respectively formed on two separate flexible circuit boards; in one embodiment, the first control circuit 151 and the second control circuit 152 may also be formed on a single flexible circuit board.
The first control circuit 151 is electrically connected to the connecting pad 130 on the first side 141, and the second control circuit 152 is electrically connected to the connecting pad 130 on the second side 142. The first control circuit 151 and the second control circuit 152 are bonded to the connection pads 130 by conductive adhesives.
The first control circuit 151 and the second control circuit 152 are disposed on the flexible printed circuit board, which facilitates operation and adapts to the internal structure of the touch panel. The first control circuit 151 and the second control circuit 152 are electrically connected to a touch IC (not shown), one of which is used for transmitting a touch driving signal and the other is used for transmitting a touch sensing signal, the touch electrode block 121 on one of the first sub-substrate 111 and the second sub-substrate 112 is used as a touch driving electrode, and the touch electrode block 121 on the other is used as a touch sensing electrode.
In the method for manufacturing the touch panel provided by this embodiment, the connecting pads 130 are disposed on the cover plate 140, and the connecting pads 130 are simultaneously connected to the contact pads 122 at the ends of the touch electrode blocks 121 in the length extending direction and the control circuit 15, so as to establish the electrical connection between the touch electrode blocks 121 and the control circuit 15, thereby avoiding the use of a large number of wires and saving the frame area of the touch panel.
In an embodiment, an ink layer is further coated on the area of the cover plate 140 where the connecting pads 121 are disposed to cover the contact pads 122, the connecting pads 130, the first control circuit 151, and the second control circuit 152.
Referring to fig. 3 and fig. 6, the present embodiment further provides a touch panel 100 manufactured by the above touch panel manufacturing method, including: a first sub-substrate 111 and a second sub-substrate 112. A plurality of touch electrode blocks 121 are formed on both the first sub-substrate 111 and the second sub-substrate 112, and the touch electrode blocks 121 on the first sub-substrate 111 and the touch electrode blocks 121 on the second sub-substrate 112 are stacked and insulated from each other. In this embodiment, the stacking method is: the touch electrode blocks 121 on the first sub-substrate 111 and the second sub-substrate 112 are bonded by a transparent insulating adhesive. The touch electrode block 121 on one of the first sub-substrate 111 and the second sub-substrate 112 serves as a touch driving electrode, and the touch electrode block 121 on the other serves as a touch sensing electrode.
The touch electrode block 121 on the first sub-substrate 111 and the touch electrode block 121 on the second sub-substrate 112 are formed by using the same photomask in a one-time patterning process, so that the manufacturing steps are saved and the jig cost required by the manufacturing process is saved.
The touch module 100 includes a cover plate 140 and a control circuit 15, a contact pad 122 is formed at an end of the touch electrode block 121 in a length extending direction, and a plurality of connection pads 130 are formed on both a first side 141 and a second side 142 of the cover plate 140. The contact pads 122 at the ends of the touch electrode pads 121 on the first sub-substrate 111 are electrically connected to the connection pads 130 on the second side 142 in a one-to-one correspondence, and the contact pads 122 at the ends of the touch electrode pads 121 on the second sub-substrate 112 are electrically connected to the connection pads 130 on the first side 141 in a one-to-one correspondence. The control circuit 15 includes a first control circuit 151 electrically connected to the connection pad 130 on the first side 141 and a second control circuit 152 electrically connected to the connection pad 130 on the second side 142, so that the touch electrode block 121 is electrically connected to the control circuit 15 through the contact pad 122 and the connection pad 130.
The touch panel 100 defines a display area AA and a non-display area NA surrounding the display area AA, all touch electrode blocks 121 are disposed in the display area AA, and the connecting pads 130 and the contact pads 122 are formed in the non-display area NA.
The touch panel 100 provided in this embodiment can achieve all the advantages brought by the above-mentioned touch panel manufacturing method.
It will be appreciated by those skilled in the art that the above embodiments are illustrative only and not intended to be limiting, and that suitable modifications and variations may be made to the above embodiments without departing from the true spirit and scope of the invention.
Claims (10)
1. A method for manufacturing a touch panel is characterized by comprising the following steps:
step S1: forming a conductive layer on a substrate, and patterning the conductive layer to form a plurality of touch electrode blocks arranged at intervals;
step S2: cutting the substrate and at least part of the touch electrode blocks to obtain a first sub-substrate and a second sub-substrate which are separated, wherein the first sub-substrate and the second sub-substrate are respectively provided with a plurality of cut touch electrode blocks;
step S3: laminating the first sub-substrate and the second sub-substrate to insulate the touch electrode block on the first sub-substrate and the touch electrode block on the second sub-substrate from each other;
the size of the touch electrode blocks cut on the first sub-substrate and the second sub-substrate is smaller than that of the touch electrode blocks formed on the substrate.
2. The method for manufacturing a touch panel according to claim 1, wherein the step S1 of forming the touch electrode blocks arranged at intervals comprises:
and forming a plurality of strip-shaped touch electrode blocks extending along the same direction.
3. The method for manufacturing a touch panel according to claim 2, wherein the step S3 of laminating the first sub-substrate and the second sub-substrate further comprises:
and enabling the length extension directions of the touch electrode blocks on the first sub-substrate and the touch electrode blocks on the second sub-substrate to be mutually crossed.
4. The method of manufacturing a touch panel according to claim 1, wherein the step S1 of forming a plurality of touch electrode blocks further comprises forming a contact pad at an end of each of the touch electrode blocks in a length extending direction.
5. The method for manufacturing a touch panel according to claim 4, further comprising step S4 after step S3: providing a cover plate, forming a plurality of connecting pads on the cover plate, and connecting the connecting pads with the contact pads in a one-to-one correspondence manner.
6. The method for manufacturing a touch panel according to claim 5, further comprising, after the step S4:
and step S5, connecting each of the connection pads with a control circuit to establish electrical connection between the touch electrode block and the control circuit.
7. A touch panel, comprising:
a first sub-substrate having a plurality of touch electrode blocks formed on one surface thereof;
the touch control device comprises a second sub-substrate, a first electrode layer and a second electrode layer, wherein a plurality of touch control electrode blocks are formed on one surface of the second sub-substrate, the first sub-substrate and the second sub-substrate are arranged in a laminated mode, and the touch control electrode blocks on the first sub-substrate and the touch control electrode blocks on the second sub-substrate are mutually insulated;
the touch electrode block on the first sub-substrate and the touch electrode block on the second sub-substrate are formed by cutting after the same patterning process, and the touch electrode blocks on the first sub-substrate and the second sub-substrate are smaller than the size of the touch electrode blocks when the touch electrode blocks are not cut.
8. The touch panel of claim 7, wherein the touch panel defines a display area and a non-display area surrounding the display area, all the touch electrode blocks are disposed in the display area, and a contact pad is formed at an end of each of the touch electrode blocks in a length extending direction;
the touch panel further comprises a plurality of connecting pads, the connecting pads are correspondingly connected with the connecting pads one by one, and the connecting pads are formed in the non-display area.
9. The touch panel of claim 8, wherein the touch panel comprises a cover sheet,
each connecting pad is arranged on the cover plate.
10. The touch panel of claim 8, wherein the touch panel comprises a control circuit electrically connected to each of the connection pads.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257233.4A CN109375807B (en) | 2018-10-26 | 2018-10-26 | Manufacturing method of touch panel and touch panel |
| TW107138694A TW202016711A (en) | 2018-10-26 | 2018-10-31 | Manufacturing method of touch panel and touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257233.4A CN109375807B (en) | 2018-10-26 | 2018-10-26 | Manufacturing method of touch panel and touch panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109375807A CN109375807A (en) | 2019-02-22 |
| CN109375807B true CN109375807B (en) | 2022-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811257233.4A Active CN109375807B (en) | 2018-10-26 | 2018-10-26 | Manufacturing method of touch panel and touch panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109375807B (en) |
| TW (1) | TW202016711A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114047652B (en) * | 2021-11-15 | 2023-09-15 | 厦门天马微电子有限公司 | Display substrate, display panel, manufacturing method and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203658962U (en) * | 2013-08-27 | 2014-06-18 | 胜华科技股份有限公司 | Touch control display device |
| CN103970312A (en) * | 2013-01-24 | 2014-08-06 | 联胜（中国）科技有限公司 | Touch display device |
| CN107305448A (en) * | 2016-04-19 | 2017-10-31 | 宝宸（厦门）光学科技有限公司 | Contactor control device |
| CN107870695A (en) * | 2016-09-27 | 2018-04-03 | 星电株式会社 | Manufacture the method and touch-sensing device of touch-sensing device |
| WO2018064722A1 (en) * | 2016-10-05 | 2018-04-12 | Newsouth Innovations Pty Limited | Piezoelectric contact sensor |
| CN108255359A (en) * | 2018-01-05 | 2018-07-06 | 业成科技（成都）有限公司 | Touch panel and its manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101376089B1 (en) * | 2011-12-30 | 2014-03-20 | (주)멜파스 | Touch sensing apparatus and method for manufacturing the same |
| TWI511017B (en) * | 2014-01-09 | 2015-12-01 | Quanta Comp Inc | Capacitance touch panel |
-
2018
- 2018-10-26 CN CN201811257233.4A patent/CN109375807B/en active Active
- 2018-10-31 TW TW107138694A patent/TW202016711A/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970312A (en) * | 2013-01-24 | 2014-08-06 | 联胜（中国）科技有限公司 | Touch display device |
| CN203658962U (en) * | 2013-08-27 | 2014-06-18 | 胜华科技股份有限公司 | Touch control display device |
| CN107305448A (en) * | 2016-04-19 | 2017-10-31 | 宝宸（厦门）光学科技有限公司 | Contactor control device |
| CN107870695A (en) * | 2016-09-27 | 2018-04-03 | 星电株式会社 | Manufacture the method and touch-sensing device of touch-sensing device |
| WO2018064722A1 (en) * | 2016-10-05 | 2018-04-12 | Newsouth Innovations Pty Limited | Piezoelectric contact sensor |
| CN108255359A (en) * | 2018-01-05 | 2018-07-06 | 业成科技（成都）有限公司 | Touch panel and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109375807A (en) | 2019-02-22 |
| TW202016711A (en) | 2020-05-01 |
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