CN109933238B - Touch mother substrate, manufacturing method, touch panel and display - Google Patents
Touch mother substrate, manufacturing method, touch panel and display Download PDFInfo
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- CN109933238B CN109933238B CN201910181580.1A CN201910181580A CN109933238B CN 109933238 B CN109933238 B CN 109933238B CN 201910181580 A CN201910181580 A CN 201910181580A CN 109933238 B CN109933238 B CN 109933238B
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Abstract
A touch control mother substrate comprises a substrate and a sensing electrode layer arranged on the substrate, wherein the sensing electrode layer comprises a first metal electrode and a second metal electrode, the touch control mother substrate further comprises a charge storage arranged on the substrate, the sensing electrode layer is electrically connected with the charge storage, the charge storage comprises a first metal plate and a second metal plate, the first metal plate is electrically connected with the first metal electrode, and the second metal plate is electrically connected with the second metal electrode. The touch mother substrate can absorb and store static electricity generated in the manufacturing process, and the touch mother substrate can work normally. The invention also relates to a manufacturing method of the touch mother substrate, a touch panel and a display.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a touch control mother substrate, a manufacturing method of the touch control mother substrate, a touch control panel and a display.
Background
With the rapid development of electronic products, the touch display technology has gradually replaced the traditional mouse and keyboard due to its humanized design and simple and fast input, and is widely applied to electronic products such as notebook computers and mobile phones. On-Cell Touch display is a common Touch display technology at present, i.e. a Touch sensing layer (Touch Sensor) is formed On the outer surface of a Color film substrate (Color Filter).
Fig. 1 is a schematic structural diagram of a conventional touch mother substrate. As shown in fig. 1, a plurality of touch sensing layers are formed on the touch mother substrate, each touch sensing layer includes two metal electrodes having a mesh structure, and external static electricity is easily transmitted to the touch sensing layer during the manufacturing process. Due to the fact that the line width of the metal electrode is small, electrostatic attack can operate the metal electrode to break, and the problems of touch failure and the like are caused.
Disclosure of Invention
In view of this, the present invention provides a touch mother substrate, which can absorb static electricity generated during a storage manufacturing process and ensure that the touch mother substrate can work normally.
A touch control mother substrate comprises a substrate and a sensing electrode layer arranged on the substrate, wherein the sensing electrode layer comprises a first metal electrode and a second metal electrode, the touch control mother substrate further comprises a charge storage arranged on the substrate, the sensing electrode layer is electrically connected with the charge storage, the charge storage comprises a first metal plate and a second metal plate, the first metal plate is electrically connected with the first metal electrode, and the second metal plate is electrically connected with the second metal electrode.
In an embodiment of the present invention, an insulating layer is disposed on the substrate, the insulating layer is disposed between the first metal plate and the second metal plate, and the first metal plate is disposed on the substrate; the insulating layer is arranged between the first metal electrode and the second metal electrode, and the first metal electrode is arranged on the substrate.
In an embodiment of the present invention, a dielectric constant of the insulating layer between the first metal plate and the second metal plate is greater than a dielectric constant of the insulating layer between the first metal electrode and the second metal electrode.
In an embodiment of the present invention, a thickness of the insulating layer between the first metal plate and the second metal plate is smaller than a thickness of the insulating layer between the first metal electrode and the second metal electrode.
In an embodiment of the invention, the touch mother substrate includes a touch area and a trimming area, the sensing electrode layer is located in the touch area, the charge storage is located in the trimming area, the trimming area is reserved in a process of manufacturing the touch mother substrate, and the trimming area is trimmed and removed after the touch mother substrate is manufactured.
In an embodiment of the invention, the touch mother substrate further includes a conductive line disposed on the substrate, and two ends of the conductive line are connected to the charge storage to form a path.
The invention also provides a touch panel which is formed by cutting the touch mother substrate to remove the charge storage.
The invention also provides a display which comprises the touch panel formed by cutting and removing the charge storage.
The invention also provides a manufacturing method of the touch mother substrate, which comprises the following steps:
providing a substrate, manufacturing a sensing electrode layer and a charge storage on the substrate, and electrically connecting the sensing electrode layer with the charge storage, wherein the sensing electrode layer comprises a first metal electrode and a second metal electrode, the charge storage comprises a first metal plate and a second metal plate, the first metal plate is electrically connected with the first metal electrode, and the second metal plate is electrically connected with the second metal electrode.
In an embodiment of the present invention, the steps of fabricating the sensing electrode layer and the charge storage device include:
manufacturing a first metal electrode and a first metal plate on the substrate, and electrically connecting the first metal electrode and the first metal plate;
arranging an insulating layer on the substrate, wherein the insulating layer covers the first metal electrode and the first metal plate; and
and manufacturing a second metal electrode and a second metal plate on the insulating layer, and electrically connecting the second metal electrode and the second metal plate, wherein the first metal electrode, the insulating layer and the second metal electrode form the sensing electrode layer, and the first metal plate, the insulating layer and the second metal plate form the charge storage.
The touch control mother substrate comprises a substrate, and a sensing electrode layer and a charge storage which are arranged on the substrate, wherein the sensing electrode layer is electrically connected with the charge storage, the sensing electrode layer comprises a first metal electrode and a second metal electrode, the charge storage comprises a first metal plate and a second metal plate, the first metal plate is electrically connected with the first metal electrode, and the second metal plate is electrically connected with the second metal electrode. Therefore, in the process of manufacturing the touch mother substrate, the charge storage can absorb and store static electricity generated in the manufacturing process, the first metal electrode and the second metal electrode are prevented from being broken, and the touch mother substrate can work normally.
Drawings
Fig. 1 is a schematic structural diagram of a conventional touch mother substrate.
Fig. 2 is a schematic structural diagram of a touch mother substrate according to a first embodiment of the invention.
Fig. 3 is a schematic partial structure diagram of the touch mother substrate shown in fig. 2.
Fig. 4 is a schematic partial cross-sectional structure view of the touch mother substrate shown in fig. 2.
Fig. 5 is a schematic partial structure diagram of a touch mother substrate according to a second embodiment of the invention.
Fig. 6 is a schematic structural diagram of the display of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Fig. 2 is a schematic structural diagram of a touch mother substrate according to a first embodiment of the invention. Fig. 3 is a schematic partial structure diagram of the touch mother substrate shown in fig. 2. Fig. 4 is a schematic partial cross-sectional structure view of the touch mother substrate shown in fig. 2. As shown in fig. 2, 3 and 4, the touch-sensing mother substrate 10 includes a substrate 11, and a sensing electrode layer 12 and a charge storage 13 disposed on the substrate 11, wherein the sensing electrode layer 12 is electrically connected to the charge storage 13. When the touch mother substrate 10 is attacked by static electricity, the static electricity is stored in the charge storage 13 after passing through the sensing electrode layer 12. In this embodiment, the touch mother substrate 10 includes a plurality of sensing electrode layers 12 and a plurality of charge storages 13, the sensing electrode layers 12 are electrically connected to the charge storages 13, the charge storages 13 are disposed in parallel, and the charge storages 13 can store more charges.
The substrate 11 is a transparent substrate, which may be glass, polymer plastic material (e.g., Polycarbonate (PC), polyvinyl chloride (PVC)), or other transparent material. In this embodiment, the insulating layer 123 is further provided on the substrate 11, and the insulating layer 123 may be made of glass, an insulating transparent polymer, or an organic material, but not limited thereto.
The sensing electrode layer 12 includes a first metal electrode 121 and a second metal electrode 122. The first metal electrode 121 is disposed opposite to the second metal electrode 122, the insulating layer 123 is disposed between the first metal electrode 121 and the second metal electrode 122, and the first metal electrode 121 is disposed on the substrate 11, i.e., the insulating layer 123 covers the substrate 11 and the first metal electrode 121. The first metal electrode 121 and the second metal electrode 122 are made of a metal material with good electrical conductivity, such as gold, silver, copper, aluminum, zinc, or an alloy of at least two of the foregoing materials, which has low cost and good electrical conductivity. The first metal electrode 121 and the second metal electrode 122 are in a mesh structure, and a projection of the first metal electrode 121 on the substrate 11 and a projection of the second metal electrode 122 on the substrate 11 are arranged in a crossing manner. In the present embodiment, the first metal electrode 121 and the second metal electrode 122 are formed by metal ion plating, etching (for example, acid etching), and the like, but not limited thereto.
The charge storage 13 includes a first metal plate 131 and a second metal plate 132. The first metal plate 131 and the second metal plate 132 are disposed opposite to each other, the insulating layer 123 is disposed between the first metal plate 131 and the second metal plate 132, the first metal plate 131 and the first metal electrode 121 are disposed on the same layer, and the second metal plate 132 and the second metal electrode 122 are disposed on the same layer, that is, the first metal plate 131 is disposed on the substrate 11, the first metal plate 131 is electrically connected to the first metal electrode 121, and the second metal plate 132 is electrically connected to the second metal electrode 122. In the present embodiment, the first metal plate 131 and the second metal plate 132 are formed by metal ion plating, etching (for example, acid etching), and the like, but not limited thereto.
In another preferred embodiment, the dielectric constant of the insulating layer 123 between the first metal plate 131 and the second metal plate 132 is greater than the dielectric constant of the insulating layer 123 between the first metal electrode 121 and the second metal electrode 122, which is beneficial to improving the charge storage capability of the charge storage 13.
In another preferred embodiment, the thickness of the insulating layer 123 between the first metal plate 131 and the second metal plate 132 is smaller than the thickness of the insulating layer 123 between the first metal electrode 121 and the second metal electrode 122, which is beneficial to improving the charge storage capability of the charge storage 13.
Further, the touch mother substrate 10 includes a touch area 101 and a trimming area 102. The sensing electrode layer 12 is located in the touch area 101, and the charge storage 13 is located in the trimming area 102. When the touch mother substrate 10 is manufactured, the cutting area 102 of the touch mother substrate 10 is reserved, that is, the charge storage 13 is reserved, and the charge storage 13 can store static electricity generated in the manufacturing process, so that the first metal electrode 121 and the second metal electrode 122 are prevented from being broken, and the touch mother substrate 10 can work normally. After the touch mother substrate 10 is manufactured, the cutting area 102 of the touch mother substrate 10 needs to be cut and removed, and the sensing electrode layer 12 is retained, so that the sensing electrode layer 12 can be mounted in a display to form a touch display.
Fig. 5 is a schematic partial structure diagram of a touch mother substrate according to a second embodiment of the invention. As shown in fig. 5, the touch mother substrate 10 includes a substrate 11, and a sensing electrode layer 12, a charge storage 13 and a wire 15 disposed on the substrate 11, wherein the sensing electrode layer 12 is electrically connected to the charge storage 13, and two ends of the wire 15 are connected to the charge storage 13 to form a path. Specifically, one end of the conductive line 15 is electrically connected to the first metal plate 131 of the charge storage 13, and the other end of the conductive line 15 is electrically connected to the second metal plate 132 of the charge storage 13. In the embodiment, the charge storage 13 and the conductive wire 15 form a closed path, and charges stored in the charge storage 13 are conducted and consumed through the conductive wire 15, so that the problem that the first metal electrode 121 and the second metal electrode 122 are disconnected due to the charges released from the charge storage 13 to the sensing electrode layer 12 can be effectively avoided, and the touch mother substrate 10 can work normally.
In another preferred embodiment, the touch-sensing mother substrate 10 is further connected to a ground line (not shown), one end of the ground line is electrically connected to the charge storage 13, the other end of the ground line is grounded, and the ground line is used for conducting the charges stored in the charge storage 13 to the ground.
The invention also relates to a manufacturing method of the touch mother substrate, which comprises the following steps:
providing a substrate 11, fabricating a sensing electrode layer 12 and a charge storage 13 on the substrate 11, and electrically connecting the sensing electrode layer 12 and the charge storage 13.
Further, the step of fabricating the sensing electrode layer 12 and the charge storage 13 includes:
manufacturing a first metal electrode 121 and a first metal plate 131 on the substrate 11, and electrically connecting the first metal electrode 121 and the first metal plate 131; specifically, a metal layer is provided on the substrate 11 by means of metal ion plating or sputtering, and the first metal electrode 121 and the first metal plate 131 are formed by an etching (e.g., acid etching) process.
Providing an insulating layer 123 on the substrate 11, and covering the insulating layer 123 on the first metal electrode 121 and the first metal plate 131; specifically, the insulating layer 123 is provided on the substrate 11 by coating, and the insulating layer 123 may be made of glass, an insulating transparent polymer, or an organic material, but is not limited thereto. And
manufacturing a second metal electrode 122 and a second metal plate 132 on the insulating layer 123, and electrically connecting the second metal electrode 122 and the second metal plate 132, wherein the first metal electrode 121, the insulating layer 123 and the second metal electrode 122 form the sensing electrode layer 12, and the first metal plate 131, the insulating layer 123 and the second metal plate 132 form the charge storage 13; specifically, a metal layer is disposed on the insulating layer 123 by metal ion plating or sputtering, and the second metal electrode 122 and the second metal plate 132 are formed by an etching (e.g., acid etching) process. The first metal electrode 121 and the second metal electrode 122 are made of a metal material with good electrical conductivity, such as gold, silver, copper, aluminum, zinc, or an alloy of at least two of the foregoing materials, which has low cost and good electrical conductivity.
Further, the first metal electrode 121 and the second metal electrode 122 are in a mesh structure, and a projection of the first metal electrode 121 on the substrate 11 and a projection of the second metal electrode 122 on the substrate 11 are arranged in a crossing manner.
Further, the touch mother substrate 10 is divided into a touch area 101 and a cuttable cutting area 102, the sensing electrode layer 12 is located in the touch area 101, and the charge storage 13 is located in the cutting area 102. In the process of manufacturing the touch mother substrate 10, the cutting area 102 of the touch mother substrate 10 is reserved, that is, the charge storage 13 is reserved, and the charge storage 13 can absorb and store static electricity generated in the manufacturing process, so that the first metal electrode 121 and the second metal electrode 122 are prevented from being broken, and the touch mother substrate 10 can work normally. After the touch mother substrate 10 is manufactured, the cutting area 102 of the touch mother substrate 10 needs to be cut and removed, and the sensing electrode layer 12 is retained, so that the sensing electrode layer 12 can be mounted in a display to form a touch display.
In another preferred embodiment, a first metal line is formed on the substrate 11 and electrically connected to the first metal plate 131, wherein the first metal line, the first metal electrode 121, and the first metal plate 131 are formed by the same process;
forming a via hole in the insulating layer 123 and exposing the first metal line from the via hole;
a second metal line is formed on the insulating layer 123, and one end of the second metal line is electrically connected to the second metal plate 132, and the other end of the second metal line passes through the via hole to be electrically connected to the first metal line, and the first metal line and the second metal line form a conducting wire 15, wherein the second metal line, the second metal electrode 122, and the second metal plate 132 are formed by the same process.
The invention also relates to a touch panel formed by cutting off the charge storage 13 from the touch mother substrate 10.
Fig. 6 is a schematic structural diagram of the display of the present invention. As shown in fig. 6, the present invention also relates to a display 100, wherein the display 100 includes a touch panel formed by cutting the touch mother substrate 10 to remove the charge storage 13, a Thin Film Transistor (TFT) substrate 20, a Liquid Crystal (LC) layer 30, a Color Filter (CF) substrate 40, and a polarizer 50 (polarizer; POL). The thin film transistor substrate 20 is disposed opposite to the color filter substrate 40, the liquid crystal layer 30 is disposed between the thin film transistor substrate 20 and the color filter substrate 40, the touch panel is disposed on the color filter substrate 40, and the polarizer 50 is disposed on the touch panel. Other additional layers may be interposed between the above layers according to various application or functional requirements. In this embodiment, a planarization layer 14 is further disposed on the touch panel, the planarization layer 14 covers the second metal electrode 122 and the insulating layer 123, and the polarizer 50 is disposed on the planarization layer 14; the planarization layer 14 may be made of glass, transparent polymer with insulating property, or organic material, but not limited thereto. The display 100 may be a mobile phone, a tablet computer, etc., but not limited thereto.
The touch mother substrate 10 of the present invention includes a substrate 11, and a sensing electrode layer 12 and a charge storage 13 disposed on the substrate 11, wherein the sensing electrode layer 12 is electrically connected to the charge storage 13. Therefore, in the process of manufacturing the touch mother substrate 10, the charge storage 13 can absorb and store static electricity generated in the manufacturing process, so as to prevent the first metal electrode 121 and the second metal electrode 122 from being disconnected, and ensure that the touch mother substrate 10 can work normally.
The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (9)
1. A touch mother substrate comprises a substrate (11) and a sensing electrode layer (12) arranged on the substrate (11), the sensing electrode layer (12) comprises a first metal electrode (121) and a second metal electrode (122), characterized in that the touch mother substrate further comprises a charge storage (13) arranged on the substrate (11), the sensing electrode layer (12) is electrically connected with the charge storage (13), the charge storage (13) comprises a first metal plate (131) and a second metal plate (132), the first metal plate (131) is electrically connected with the first metal electrode (121), the second metal plate (132) is electrically connected with the second metal electrode (122), the touch control mother substrate also comprises a lead (15) arranged on the substrate (11), and two ends of the conducting wire (15) are connected with the charge storage (13) to form a passage.
2. The touch mother substrate according to claim 1, wherein an insulating layer (123) is disposed on the substrate (11), the insulating layer (123) is disposed between the first metal plate (131) and the second metal plate (132), and the first metal plate (131) is disposed on the substrate (11); the insulating layer (123) is disposed between the first metal electrode (121) and the second metal electrode (122), and the first metal electrode (121) is disposed on the substrate (11).
3. The touch mother substrate of claim 2, wherein a dielectric constant of the insulating layer (123) between the first metal plate (131) and the second metal plate (132) is greater than a dielectric constant of the insulating layer (123) between the first metal electrode (121) and the second metal electrode (122).
4. The touch mother substrate of claim 2, wherein the thickness of the insulating layer (123) between the first metal plate (131) and the second metal plate (132) is less than the thickness of the insulating layer (123) between the first metal electrode (121) and the second metal electrode (122).
5. The touch mother substrate according to claim 1, wherein the touch mother substrate comprises a touch area (101) and a trimming area (102), the sensing electrode layer (12) is located in the touch area (101), the charge storage (13) is located in the trimming area (102), the trimming area (102) is reserved during the process of manufacturing the touch mother substrate, and the trimming area (102) is trimmed and removed after the touch mother substrate is manufactured.
6. A touch panel formed by cutting off a charge storage (13) from a touch mother substrate according to any one of claims 1 to 5.
7. A display comprising a touch panel formed by cutting off a charge storage (13) from a touch mother substrate according to any one of claims 1 to 5.
8. A manufacturing method of a touch mother substrate is characterized by comprising the following steps:
providing a substrate (11), manufacturing a sensing electrode layer (12) and a charge storage (13) on the substrate (11), and electrically connecting the sensing electrode layer (12) and the charge storage (13), wherein the sensing electrode layer (12) comprises a first metal electrode (121) and a second metal electrode (122), the charge storage (13) comprises a first metal plate (131) and a second metal plate (132), the first metal plate (131) is electrically connected with the first metal electrode (121), the second metal plate (132) is electrically connected with the second metal electrode (122), manufacturing a lead (15) on the substrate (11), and two ends of the lead (15) are electrically connected with the first metal plate (131) and the second metal plate (132) to form a passage.
9. The method for manufacturing a touch mother substrate according to claim 8, wherein the step of manufacturing the sensing electrode layer (12) and the charge storage (13) comprises:
manufacturing a first metal electrode (121) and a first metal plate (131) on the substrate (11), and electrically connecting the first metal electrode (121) and the first metal plate (131);
providing an insulating layer (123) on the substrate (11) and covering the insulating layer (123) over the first metal electrode (121) and the first metal plate (131); and
and manufacturing a second metal electrode (122) and a second metal plate (132) on the insulating layer (123), and electrically connecting the second metal electrode (122) and the second metal plate (132), wherein the first metal electrode (121), the insulating layer (123) and the second metal electrode (122) form the sensing electrode layer (12), and the first metal plate (131), the insulating layer (123) and the second metal plate (132) form the charge storage (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910181580.1A CN109933238B (en) | 2019-03-11 | 2019-03-11 | Touch mother substrate, manufacturing method, touch panel and display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910181580.1A CN109933238B (en) | 2019-03-11 | 2019-03-11 | Touch mother substrate, manufacturing method, touch panel and display |
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| CN109933238A CN109933238A (en) | 2019-06-25 |
| CN109933238B true CN109933238B (en) | 2022-02-15 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193667A (en) * | 2010-03-12 | 2011-09-21 | 胜华科技股份有限公司 | Mother board for touch panels and touch panel |
| CN104461107A (en) * | 2013-09-24 | 2015-03-25 | 胜华科技股份有限公司 | Touch panel |
| CN107678596A (en) * | 2017-10-11 | 2018-02-09 | 京东方科技集团股份有限公司 | The preparation method of touch base plate motherboard, touching display screen and touch-control display panel |
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2019
- 2019-03-11 CN CN201910181580.1A patent/CN109933238B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193667A (en) * | 2010-03-12 | 2011-09-21 | 胜华科技股份有限公司 | Mother board for touch panels and touch panel |
| CN104461107A (en) * | 2013-09-24 | 2015-03-25 | 胜华科技股份有限公司 | Touch panel |
| CN107678596A (en) * | 2017-10-11 | 2018-02-09 | 京东方科技集团股份有限公司 | The preparation method of touch base plate motherboard, touching display screen and touch-control display panel |
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| CN109933238A (en) | 2019-06-25 |
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