CN112433639A - Capacitive touch screen, manufacturing method and application thereof - Google Patents
Capacitive touch screen, manufacturing method and application thereof Download PDFInfo
- Publication number
- CN112433639A CN112433639A CN202011542623.3A CN202011542623A CN112433639A CN 112433639 A CN112433639 A CN 112433639A CN 202011542623 A CN202011542623 A CN 202011542623A CN 112433639 A CN112433639 A CN 112433639A
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- CN
- China
- Prior art keywords
- layer
- glass
- ito
- touch screen
- capacitive touch
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 87
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000010030 laminating Methods 0.000 claims abstract description 13
- 238000005530 etching Methods 0.000 claims abstract description 9
- 238000007639 printing Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 100
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 238000010295 mobile communication Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005388 borosilicate glass Substances 0.000 claims description 2
- 239000005355 lead glass Substances 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000005361 soda-lime glass Substances 0.000 claims description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive 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 relates to the field of touch screen manufacturing, in particular to an ITO (indium tin oxide) capacitive screen and a manufacturing method and application thereof. According to the capacitive touch screen provided by the invention, the TX ITO layer is additionally arranged on the traditional ink layer of the glass cover plate, the RX ITO layer is manufactured on the other layer of glass through yellow light etching, and the two layers of glass are oppositely pasted, so that not only is one-time laminating process reduced, but also the process yield and the cost of the glass Sensor are greatly improved due to the reduction of procedures of bridging and secondary insulation printing in the manufacturing process of the glass ITO, and meanwhile, the safe passing of functional ESD (electro-static discharge) 20KV can be ensured.
Description
Technical Field
The invention relates to the field of touch screen manufacturing, in particular to an ITO (indium tin oxide) capacitive screen and a manufacturing method and application thereof.
Background
With the development and progress of science and technology, capacitive touch sensing screens have been more and more widely applied to touch terminals in various fields such as mobile communication, instruments and meters.
At present, the most widely used capacitive touch sensing screens mainly comprise 3, the first is a D-ITO scheme, which mainly comprises a cover plate layer, an indium tin oxide conducting layer, a glass substrate and an indium tin oxide conducting layer, and the capacitive touch sensing screen has the defects that the capacitive touch sensing screen is easy to damage in the post-processing process and cannot be recycled after full lamination; the second is S-ITO scheme, which mainly comprises a cover plate layer, a bridging double-layer indium tin oxide conducting layer and a glass substrate, and has the defects of complex manufacturing process and poor antistatic capability; the third is a double-layer film scheme, which mainly comprises an indium tin oxide conducting layer, a PET substrate, a laminating layer, an indium tin oxide conducting layer and a PET substrate, and has the defects that the post-processing process is easy to damage and the indium tin oxide conducting layer cannot be recycled after full lamination.
Disclosure of Invention
The invention provides a capacitive touch screen with a brand new structure, in particular to a capacitive touch screen which structurally mainly comprises the following components: the device comprises a TX ITO glass layer, a laminating layer and an RX ITO glass layer, wherein the TX ITO glass layer and the RX ITO glass layer are fixed through the laminating layer; the TX ITO glass layer comprises a conductive glass cover plate, an ink layer and a TX ITO layer, and the RX ITO glass layer comprises an RX ITO layer and conductive glass.
In some preferred embodiments, the adhesive layer is an OCA optical adhesive layer.
In some preferred embodiments, the RX ITO layer of the RX ITO glass layer is etched to the conductive glass surface by a yellow etching process.
In some preferred embodiments, the conductive glass cover plate and the conductive glass are each independently selected from soda lime glass, aluminum magnesium glass, potassium glass, lead glass, borosilicate glass, and quartz glass.
In some preferred embodiments, the TX ITO glass layer, the laminating layer, and the RX ITO glass layer are laminated by a vacuum method or a roller method.
The manufacturing method of the capacitive touch screen mainly comprises the following steps:
s1: selecting a conductive glass cover plate with a preset size, and printing ink layers on two ends of the conductive glass cover plate; manufacturing a TX ITO layer on the basis of the conductive glass cover plate and the printing ink layer to form a TX ITO glass layer;
s2: selecting conductive glass with a preset size, and manufacturing an RX ITO layer on the surface of the conductive glass through a yellow light etching process to form an RX ITO glass layer;
s3: and (3) bonding the prepared TX ITO glass layer and the RX ITO glass layer by a bonding layer in a vacuum mode or a roller mode.
Preferably, the thickness of the ink layer is 6-10 μm.
Preferably, the thickness of the TX ITO layer is 20-50 nm.
The invention further relates to a display device which comprises the capacitive touch screen, and the display device is preferably a mobile communication device or a personal computer.
According to the capacitive touch screen provided by the invention, the TX ITO layer is additionally arranged on the traditional ink layer of the glass cover plate, the RX ITO layer is manufactured on the other layer of glass through yellow light etching, and the two layers of glass are oppositely pasted, so that not only is one-time laminating process reduced, but also the process yield and the cost of the glass Sensor are greatly improved due to the reduction of procedures of bridging and secondary insulation printing in the manufacturing process of the glass ITO, and meanwhile, the safe passing of functional ESD (electro-static discharge) 20KV can be ensured.
Drawings
Fig. 1 is a schematic structural diagram of a capacitive touch screen according to the present invention;
in the figure, a 1-TX ITO glass layer, a 2-laminating layer, a 3-RX ITO glass layer, a 4-conductive glass cover plate, a 5-ink layer, a 6-TX ITO layer, a 7-RX ITO layer and 8-conductive glass are arranged.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the capacitive touch screen provided by the present embodiment mainly includes, in structure: the device comprises a TX ITO glass layer 1, a laminating layer 2 and an RX ITO glass layer 3, wherein the TX ITO glass layer 1 and the RX ITO glass layer 3 are laminated through the laminating layer 2 in a roller mode; wherein, TX ITO glass layer 1 includes electrically conductive glass apron 4, ink layer 5 and TX ITO layer 6, and RX ITO glass layer 3 includes RX ITO layer 7 and electrically conductive glass 8, and laminating layer 2 is the OCA optical cement layer to RX ITO layer 7 of RX ITO glass layer 3 is through the etching of yellow light etching technology to electrically conductive glass 8 surface.
In the present embodiment, the conductive glass cover plate 4 and the conductive glass 8 are both made of quartz glass.
In terms of manufacturing methods, the manufacturing method of the capacitive touch screen mainly comprises the following steps:
s1: selecting a conductive glass cover plate 4 with a preset size, and printing ink layers 5 with the thickness of 6 microns at two ends of the conductive glass cover plate; manufacturing a TX ITO layer 6 with the thickness of 20-50nm on the basis of the conductive glass cover plate 4 and the printing ink layer 5 to form a TX ITO glass layer 1;
s2: selecting conductive glass 8 with a preset size, manufacturing an RX ITO layer 7 on the surface of the conductive glass through a yellow light etching process, and forming an RX ITO glass layer 3;
s3: and (3) adhering the prepared TX ITO glass layer 1 and the prepared RX ITO glass layer 3 through an adhering layer 2 (such as an OCA optical adhesive layer) in a roller mode.
The invention also provides a display device, such as a mobile communication device or a personal computer, which comprises the capacitive touch screen.
The above-mentioned embodiments are described in more detail, but the invention is not to be construed as being limited to the scope of the invention. It should be noted that, for those skilled in the relevant art, various changes and modifications can be made without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A capacitive touch screen, said capacitive touch screen comprising: the novel display panel comprises a TX ITO glass layer (1), a laminating layer (2) and an RX ITO glass layer (3), wherein the TX ITO glass layer (1) and the RX ITO glass layer (3) are fixed through the laminating layer (2); the TX ITO glass layer (1) comprises a conductive glass cover plate (4), an ink layer (5) and a TX ITO layer (6), and the RX ITO glass layer (3) comprises an RX ITO layer (7) and conductive glass (8).
2. The capacitive touch screen according to claim 1, wherein the adhesive layer (2) is an OCA optical adhesive layer.
3. Capacitive touch screen according to claim 1, characterized in that the RX ITO layer (7) of the RX ITO glass layer (3) is etched to the surface of the conductive glass (8) by a yellow etching process.
4. A capacitive touch screen according to claim 1, wherein the conductive glass cover plate (4) and the conductive glass (8) are each independently selected from the group consisting of soda lime glass, aluminum magnesium glass, potassium glass, lead glass, borosilicate glass, and quartz glass.
5. The capacitive touch screen according to claim 1, wherein the TX ITO glass layer (1), the laminating layer (2) and the RX ITO glass layer (3) are laminated by a vacuum method or a roller method.
6. The method of making a capacitive touch screen according to any of claims 1 to 5, comprising the steps of:
s1: selecting a conductive glass cover plate (4) with a preset size, and printing ink layers (5) at two ends of the conductive glass cover plate; manufacturing a TX ITO layer (6) on the basis of the conductive glass cover plate (4) and the printing ink layer (5) to form a TX ITO glass layer (1);
s2: selecting conductive glass (8) with a preset size, manufacturing an RX ITO layer (7) on the surface of the conductive glass through a yellow light etching process, and forming an RX ITO glass layer (3);
s3: and (3) adhering the prepared TX ITO glass layer (1) and the RX ITO glass layer (3) through an adhering layer (2) in a vacuum mode or a roller mode.
7. The method according to claim 6, wherein the thickness of the ink layer (5) is 6-10 μm.
8. The method according to claim 6, wherein said TX ITO layer (6) has a thickness of 20-50 nm.
9. A display device, comprising the capacitive touch screen of any one of claims 1-5.
10. The display device of claim 9, wherein the display device is a mobile communication device or a personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011542623.3A CN112433639A (en) | 2020-12-24 | 2020-12-24 | Capacitive touch screen, manufacturing method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011542623.3A CN112433639A (en) | 2020-12-24 | 2020-12-24 | Capacitive touch screen, manufacturing method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112433639A true CN112433639A (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011542623.3A Pending CN112433639A (en) | 2020-12-24 | 2020-12-24 | Capacitive touch screen, manufacturing method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112433639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113608640A (en) * | 2021-10-08 | 2021-11-05 | 烟台正海科技股份有限公司 | Mutual capacitance type touch screen |
Citations (8)
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|---|---|---|---|---|
| CN103744554A (en) * | 2014-01-06 | 2014-04-23 | 深圳市正星光电技术有限公司 | Touch screen and manufacturing method thereof |
| CN203720801U (en) * | 2013-12-09 | 2014-07-16 | 伯恩光学(惠州)有限公司 | Touch screen conductive glass |
| CN105677115A (en) * | 2016-03-25 | 2016-06-15 | 深圳力合光电传感股份有限公司 | Ultrathin touch screen and manufacturing method thereof |
| CN106227394A (en) * | 2016-07-26 | 2016-12-14 | 精电(河源)显示技术有限公司 | A kind of recessive cover plate touch screen and production method thereof |
| CN109358778A (en) * | 2018-12-20 | 2019-02-19 | 深圳晶华显示器材有限公司 | A kind of capacitive touch screen sensor production method, sensor and electronic equipment |
| CN109947306A (en) * | 2019-04-03 | 2019-06-28 | 蓝思科技（长沙）有限公司 | A kind of novel touch screen structure and preparation method thereof |
| CN110174976A (en) * | 2019-04-26 | 2019-08-27 | 康惠（惠州）半导体有限公司 | High reliability capacitance touch screen |
| CN210442788U (en) * | 2019-09-10 | 2020-05-01 | 广西中沛光电科技有限公司 | Two-sided silk screen printing conductive glass capacitive touch screen |
-
2020
- 2020-12-24 CN CN202011542623.3A patent/CN112433639A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203720801U (en) * | 2013-12-09 | 2014-07-16 | 伯恩光学(惠州)有限公司 | Touch screen conductive glass |
| CN103744554A (en) * | 2014-01-06 | 2014-04-23 | 深圳市正星光电技术有限公司 | Touch screen and manufacturing method thereof |
| CN105677115A (en) * | 2016-03-25 | 2016-06-15 | 深圳力合光电传感股份有限公司 | Ultrathin touch screen and manufacturing method thereof |
| CN106227394A (en) * | 2016-07-26 | 2016-12-14 | 精电(河源)显示技术有限公司 | A kind of recessive cover plate touch screen and production method thereof |
| CN109358778A (en) * | 2018-12-20 | 2019-02-19 | 深圳晶华显示器材有限公司 | A kind of capacitive touch screen sensor production method, sensor and electronic equipment |
| CN109947306A (en) * | 2019-04-03 | 2019-06-28 | 蓝思科技（长沙）有限公司 | A kind of novel touch screen structure and preparation method thereof |
| CN110174976A (en) * | 2019-04-26 | 2019-08-27 | 康惠（惠州）半导体有限公司 | High reliability capacitance touch screen |
| CN210442788U (en) * | 2019-09-10 | 2020-05-01 | 广西中沛光电科技有限公司 | Two-sided silk screen printing conductive glass capacitive touch screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113608640A (en) * | 2021-10-08 | 2021-11-05 | 烟台正海科技股份有限公司 | Mutual capacitance type touch screen |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210302 |