CN106484202B - Capacitance touch screen and preparation method thereof and touch display unit - Google Patents
Capacitance touch screen and preparation method thereof and touch display unit Download PDFInfo
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- CN106484202B CN106484202B CN201610872071.XA CN201610872071A CN106484202B CN 106484202 B CN106484202 B CN 106484202B CN 201610872071 A CN201610872071 A CN 201610872071A CN 106484202 B CN106484202 B CN 106484202B
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- sensing line
- side wall
- insulating layer
- touch screen
- capacitance touch
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of capacitance touch screens, comprising: substrate；The the first sensing line and the second sensing line being independently arranged, the first sensing line and the second sensing line are respectively provided on the substrate, have interval between the first sensing line and the second sensing line；First side wall and the second side wall, first side wall are located at the side wall of the interval first sensing line, and second side wall is located at the side wall of the interval second sensing line, forms gap between first side wall and the second side wall.The invention also discloses a kind of touch display unit including the capacitance touch screen and a kind of production method of capacitance touch screen, capacitance touch screen of the invention improves visual effect while protecting circuit.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of capacitance touch screen and preparation method thereof, touch display
Device.
Background technique
Touch screen LCD is quickly grown, have evolved into based on flow flat-panel monitor.Capacitance touch screen
In circuit production, need to prepare mutually independent first sensing line and the second sensing line on the insulating layer, however first senses line
Electrochemical corrosion is easy to happen after being contaminated with the second sensing line and causes circuit abnormality or the electricity in the process of back segment
Road such as is scraped off at the damage that will also result in circuit, influences production yield, the service life and performance of capacitance touch screen.
In the prior art, a protection insulating layer, the guarantor can be formed on the first sensing line and the second sensing line
The insulating layer covering first sensing line and the second sensing line are protected, the circuit quilt of the first sensing line and the second sensing line is prevented
Damage, corrosion.
When forming the protection insulating layer, the protection insulating layer can be packed into the first sensing line and the second sensing
Interval between line.But the dielectric constant of the material of the protection insulating layer is larger, will increase capacitor, and capacitance touch screen
Sensitivity to limited capacitance, so it is generally necessary to great talent is done at the interval between the first sensing line and the second sensing line can be with
Guarantee the sensitivity of capacitance touch screen, but the interval do it is big after, affect the visual effect of capacitance touch screen.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of capacitance touch screen, comprising:
Substrate；
The the first sensing line and the second sensing line being independently arranged, the first sensing line and the second sensing line are arranged at institute
It states on substrate, there is interval between the first sensing line and the second sensing line；And
First side wall and the second side wall, first side wall are located at the side wall of the interval first sensing line, and described the
Two side walls are located at the side wall of the interval second sensing line, form gap between first side wall and the second side wall.
Further, in the capacitance touch screen, air is filled in the gap.
Further, in the capacitance touch screen, the capacitance touch screen further includes insulating layer, and the insulating layer is located at
Between the first sensing line and the second sensing line and substrate, there is groove in the insulating layer, described in the groove face between
Two opposite side walls of the groove are also covered separately every, first side wall and the second side wall.
Further, in the capacitance touch screen, the groove runs through the insulating layer.
Further, in the capacitance touch screen, the bottom surface of the groove also covers a bottom surface protective layer, the interval
The lower surface of first sensing line of two sides and the second sensing line is above the upper surface of the bottom surface protective layer.
Further, in the capacitance touch screen, metallic pattern, the insulating layer covering are additionally provided on the substrate
The metallic pattern, via hole is provided in the insulating layer, and the second sensing line passes through the via hole and the metallic pattern
Electrical connection.
Further, in the capacitance touch screen, the upper surface of the first sensing line and the second sensing line is also covered
There is a sealer.
Further, in the capacitance touch screen, the material of first side wall and the second side wall is dielectric material
Material.
Another side according to the present invention also provides a kind of touch display unit, including capacitive touch described in any one as above
Touch screen.
Another side according to the present invention also provides a kind of production method of capacitance touch screen, comprising:
Insulating layer is formed on substrate；
Groove is formed in the insulating layer；
It is formed on the insulating layer the first sensing line being independently arranged and the second sensing line, the first sensing line and the
There is interval, groove described in the interval face between two sensing lines；And
Form protection insulating layer on the first sensing line and the second sensing line, the protection insulating layer covers described the
The bottom wall of the upper surface of one sensing line and the second sensing line, side wall and the groove, the protection insulating layer is at the interval
The side wall of place's the first sensing line forms the first side wall, and the protection insulating layer is formed in the side wall of the interval second sensing line
Second side wall forms gap between first side wall and the second side wall.
It is provided in a kind of capacitance touch screen in the present invention, the capacitance touch screen includes substrate, first passing of being independently arranged
Feel line and the second sensing line, the first side wall and the second side wall, the first sensing line and the second sensing line are arranged at the base
On plate, there is interval between the first sensing line and the second sensing line, first side wall is located at the interval first biography
Feel the side wall of line, second side wall is located at the side wall of the interval second sensing line, first side wall and the second side wall
Between form gap.First side wall and the second side wall are covered each by the side wall of the first sensing line and the second sensing line,
It can protect the side wall of the first sensing line and the second sensing line, meanwhile, it is formed between first side wall and the second side wall
Gap can fill the small dielectric of dielectric constant in the interval, to reduce the first sensing line and the second sensing
Capacitor between line improves the sensitivity of touch screen, improves visual effect while protecting circuit.
Further, it is provided in a kind of capacitance touch screen in the present invention, air is filled in the gap, can be very good
Reduce the capacitor between the first sensing line and the second sensing line, further increases the sensitivity of touch screen.
Further, it is provided in a kind of capacitance touch screen in the present invention, the capacitance touch screen further includes insulating layer, described
Insulating layer is located between the first sensing line and the second sensing line and substrate, has groove in the insulating layer, by institute
It states and is provided with groove in insulating layer, when forming first side wall and the second side wall later, only need to deposit a protection insulating layer,
It is described protection insulating layer cover it is described first sensing line and second sensing line side wall, without fill up it is described first sensing line and
Interval between second sensing line, forms gap between first side wall and the second side wall with can be convenient.
Further, it is provided in a kind of capacitance touch screen in the present invention, the bottom surface of the groove also covers bottom surface protection
The upper surface of layer, the first sensing line and the second sensing line is also covered with a sealer, so as to further protect
Protect the upper surface of the first sensing line and the second sensing line and the bottom surface of the groove.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of the capacitance touch screen of one embodiment of the invention；
Fig. 2 is the flow chart of the production method of the capacitance touch screen of one embodiment of the invention；
Fig. 3-Fig. 6 is the structural representation of the production method of the capacitance touch screen of one embodiment of the invention during the preparation process
Figure.
Specific embodiment
Capacitance touch screen of the invention is described in more detail below in conjunction with schematic diagram, which show the present invention
Preferred embodiment, it should be appreciated that those skilled in the art can modify invention described herein, and still realize the present invention
Advantageous effects.Therefore, following description should be understood as the widely known of those skilled in the art, and be not intended as pair
Limitation of the invention.
The present invention is more specifically described by way of example referring to attached drawing in the following passage.According to following explanation, the present invention
The advantages of and feature will become apparent from.It should be noted that attached drawing is all made of very simplified form and uses non-accurate ratio,
Only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
Core of the invention thought is, the present invention provides a kind of capacitance touch screen, the capacitance touch screen include substrate,
The the first sensing line and the second sensing line, the first side wall and the second side wall being independently arranged, the first sensing line and the second sensing
Line is respectively provided on the substrate, has interval between the first sensing line and the second sensing line, first side wall is located at
The interval first senses the side wall of line, and second side wall is located at the side wall that the interval second senses line, and described the
Gap is formed between one side wall and the second side wall.
First side wall and the second side wall are covered each by the side wall of the first sensing line and the second sensing line, Ke Yibao
The side wall of the first sensing line and the second sensing line is protected, meanwhile, gap is formed between first side wall and the second side wall, it can
To fill the small dielectric of dielectric constant in the interval, to reduce between the first sensing line and the second sensing line
Capacitor improves the sensitivity of touch screen, improves visual effect while protecting circuit.
With reference to Fig. 1, the capacitance touch screen 1 includes substrate 100, and in the present embodiment, the substrate 100 is transparent base
Plate, such as glass substrate etc..Metallic pattern 101 is provided on the substrate 100, the metallic pattern 101 can be used as electrode
It uses.
In the present embodiment, the capacitance touch screen 1 further includes insulating layer 110, and the insulating layer 110 is located at the substrate
On 100, the insulating layer 110 covers the metallic pattern 101, and via hole 114, the via hole are provided in the insulating layer 110
114 expose the metallic pattern 101.In addition, also there is groove 113 in the insulating layer 110, it is in the present embodiment, described
Groove 113 runs through the insulating layer 110, and in other embodiments of the invention, the groove 113 can also be not through described exhausted
Edge layer 110.The material of the insulating layer 110 is dielectric, such as silica or silicon oxynitride etc..
The capacitance touch screen 1 further include be independently arranged first sensing line 121 and second sensing line 122, described first
The material for sensing line 121 and the second sensing line 122 can be the transparent conductive materials such as ITO.The first sensing line 121 generally exists
The first direction for being parallel to 100 upper surface of substrate extends, and the second sensing line 122 is generally being parallel to the substrate
The second direction of 100 upper surfaces extends, the first sensing line 121 and the second sensing 122 mutually insulated of line setting, to contact
Point is incuded, this is it will be understood by those skilled in the art that therefore not to repeat here.
In the present embodiment, the first sensing line 121 and the second sensing line 122 are arranged on the insulating layer 110,
There is interval d1 between the first sensing line 121 and the second sensing line 122, in the present embodiment, the first sensing line 121
Positioned at the side of the groove 113, the second sensing line 122 is located at the other side of the groove 113, and the groove 113 is just
To the interval d1.The second sensing line 122 also fills up in the via hole 114, and the second sensing line 122 passes through described
Via hole 114 is electrically connected with the metallic pattern 101.
The capacitance touch screen 1 further includes the first side wall 131 and the second side wall 132, and first side wall 131 is located at described
It is spaced the side wall of the first sensing line 121 at d1, second side wall 132 is located at the side of the second sensing line 122 at the interval d1
Wall forms gap d 2 between first side wall 131 and the second side wall 132.In the present embodiment, 131 He of the first side wall
Second side wall 132 also covers separately two opposite side walls of the groove 113.Wherein, first side wall 131 and second side
The material of wall 132 is dielectric substance, such as silica or silicon oxynitride etc..
Preferably, in the present embodiment, the bottom surface of the groove 113 also covers a bottom surface protective layer 133, the interval d1
The lower surface of first sensing line 121 of two sides and the second sensing line 122 is above the upper surface of the bottom surface protective layer 133, with
Guarantee the dielectric properties at the gap d 2.In addition, the upper surface of the first sensing line 121 and the second sensing line 122 is also covered
It is stamped a sealer 134.The sealer 134 and bottom surface protective layer 133 can further protect described first
Sense the upper surface of line 121 and the second sensing line 122 and the bottom surface of the groove 113.
Preferably, the sealer 134, bottom surface protective layer 133, the first side wall 131 and the second side wall 132 material
It is all the same, allow the sealer 134, bottom surface protective layer 133, the first side wall 131 and the second side wall 132 same
Step preparation, it is exhausted that protection is collectively formed in the sealer 134, bottom surface protective layer 133, the first side wall 131 and the second side wall 132
Edge layer 130.
Preferably, being filled with air in the gap d 2, can be very good to reduce the first sensing line 121 and the second biography
Feel the capacitor between line 122, further increases the sensitivity of touch screen 1.In other embodiments of the invention, the gap d 2
The transparency material that dielectric constant is less than or equal to 3.5 can also be filled.
In the present embodiment, first side wall 131 and the second side wall 132 are covered each by the first sensing 121 He of line
The side wall of second sensing line 122 can protect the side wall of the first sensing line 121 and the second sensing line 122, meanwhile, it is described
Gap d 2 is formed between first side wall 131 and the second side wall 132, the small electricity of filling dielectric constant can be situated between in the interval d2
Matter improves the sensitivity of touch screen 1 to reduce the capacitor between the first sensing line 121 and the second sensing line 122,
Visual effect is improved while protecting circuit.
The capacitance touch screen 1 in the present embodiment can be used for touch display unit, such as touch-screen mobile phone, tablet computer
Equal devices, improve the visual effect of touch-screen mobile phone, tablet computer.
The production method for illustrating the capacitance touch screen 1 below with reference to Fig. 2-Fig. 6.
Firstly, step S11 is carried out, as shown in figure 3, insulating layer 110 is formed on the substrate 100, specifically, can be first in institute
Formation metallic pattern 101 on substrate 100 is stated, is then forming the insulating layer 110, the insulating layer 110 covers the metal
Figure 101 and the substrate 100 exposed；
Then, step S12 is carried out, as shown in figure 4, groove 113 is formed in the insulating layer 110, specifically, covering with one
Diaphragm plate is patterned the insulating layer 110, is formed simultaneously via hole 114 and groove 113, and the via hole 114 exposes institute
State metallic pattern 101；
Step S13 is carried out, as shown in figure 5, forming the first sensing 121 He of line being independently arranged on the insulating layer 110
Second sensing line 122 has interval d1, interval d1 face institute between the first sensing line 121 and the second sensing line 122
State groove 113；And
Step S14 is carried out, as shown in fig. 6, it is exhausted to form protection on the first sensing line 121 and the second sensing line 122
Edge layer 130, the protection insulating layer 130 cover the first sensing line 121 and the second sensing upper surface of line 122, side wall with
And the bottom wall of the groove 113, side wall formation the of the protection insulating layer 130 in the place the interval d1 the first sensing line 121
One side wall 131, the protection insulating layer 130 side wall of second sensing line 122 at the interval d1 form the second side wall 132,
The protection insulating layer 130 forms bottom surface protective layer 133 in the bottom wall of the groove 113, and the protection insulating layer 130 is described
The upper surface of first sensing line 121 and the second sensing line 122 forms sealer 134, first side wall 131 and second side
Gap d 2 is formed between wall 132.
Presently preferred embodiments of the present invention capacitance touch screen of the invention and preparation method thereof and touches as described above, still
Display device is not limited to content disclosed above, for example, the production method of the capacitance touch screen is not limited to using above-mentioned
Production method, those skilled in the art can adopt and be made with other methods according to the capacitance touch screen；In addition,
The capacitance touch screen can also be not provided with the groove, as long as the side wall of the first sensing line and the second sensing line forms institute
The first side wall and the second side wall are stated, the gap can also be formed, it is according to the present invention also within thought range of the invention
Foregoing description, this be it will be appreciated by those skilled in the art that, therefore not to repeat here.
In conclusion the present invention provides a kind of capacitance touch screen and preparation method thereof and touch display unit, the capacitor
The the first sensing line and the second sensing line, the first side wall and the second side wall that touch screen includes substrate, is independently arranged, described first passes
Sense line and the second sensing line are respectively provided on the substrate, have interval, institute between the first sensing line and the second sensing line
The side wall that the first side wall is located at the interval first sensing line is stated, second side wall is located at the interval second sensing line
Side wall, form gap between first side wall and the second side wall.
First side wall and the second side wall are covered each by the side wall of the first sensing line and the second sensing line, Ke Yibao
The side wall of the first sensing line and the second sensing line is protected, meanwhile, gap is formed between first side wall and the second side wall, it can
To fill the small dielectric of dielectric constant in the interval, to reduce between the first sensing line and the second sensing line
Capacitor improves the sensitivity of touch screen, improves visual effect while protecting circuit.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of capacitance touch screen characterized by comprising
Substrate；
The the first sensing line and the second sensing line being independently arranged, the first sensing line and the second sensing line are arranged at the base
On plate, there is interval between the first sensing line and the second sensing line；And
First side wall and the second side wall, first side wall are located at the side wall of the interval first sensing line, described second side
Wall is located at the side wall of the interval second sensing line, forms gap between first side wall and the second side wall；
And the capacitance touch screen further includes insulating layer, the insulating layer is located at the first sensing line and the second sensing line and base
Between plate, there is groove in the insulating layer, be spaced described in the groove face, first side wall and the second side wall are also distinguished
Cover two opposite side walls of the groove.
2. capacitance touch screen as described in claim 1, which is characterized in that be filled with air in the gap.
3. capacitance touch screen as described in claim 1, which is characterized in that the groove runs through the insulating layer.
4. capacitance touch screen as described in claim 1, which is characterized in that the bottom surface of the groove also covers bottom surface protection
The lower surface of layer, the first sensing line of the interval two sides and the second sensing line is above the upper surface of the bottom surface protective layer.
5. capacitance touch screen as described in claim 1, which is characterized in that metallic pattern is additionally provided on the substrate, it is described
Insulating layer covers the metallic pattern, and via hole is provided in the insulating layer, and the second sensing line passes through the via hole and institute
State metallic pattern electrical connection.
6. the capacitance touch screen as described in any one of claim 1-5, which is characterized in that the first sensing line and second
The upper surface of sensing line is also covered with a sealer.
7. capacitance touch screen as described in claim 1, which is characterized in that the material of first side wall and the second side wall is
Dielectric substance.
8. a kind of touch display unit, including the capacitance touch screen as described in any one of claim 1-7.
9. a kind of production method of capacitance touch screen characterized by comprising
Insulating layer is formed on substrate；
Groove is formed in the insulating layer；
It is formed on the insulating layer the first sensing line being independently arranged and the second sensing line, the first sensing line and second pass
Feeling has interval between line, groove described in the interval face；And
Protection insulating layer is formed on the first sensing line and the second sensing line, the protection insulating layer covering described first passes
Feel the bottom wall of line and the second sensing upper surface of line, side wall and the groove, the protection insulating layer is in the interval the
The side wall of one sensing line forms the first side wall, and the protection insulating layer forms second in the side wall of the interval second sensing line
Side wall forms gap between first side wall and the second side wall.
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| CN201610872071.XA CN106484202B (en) | 2016-09-30 | 2016-09-30 | Capacitance touch screen and preparation method thereof and touch display unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610872071.XA CN106484202B (en) | 2016-09-30 | 2016-09-30 | Capacitance touch screen and preparation method thereof and touch display unit |
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| CN106484202B true CN106484202B (en) | 2019-03-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI637468B (en) * | 2017-03-09 | 2018-10-01 | 矽品精密工業股份有限公司 | Package structure and the manufacture thereof |
| CN107123621A (en) | 2017-05-10 | 2017-09-01 | 京东方科技集团股份有限公司 | A kind of OLED touch-control display panels and preparation method thereof, touch control display apparatus |
| CN108762548B (en) * | 2018-05-02 | 2021-04-23 | 广州国显科技有限公司 | Touch panel, touch graphic design method thereof, touch display panel and display device |
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| CN102929420A (en) * | 2011-08-10 | 2013-02-13 | 富创得科技股份有限公司 | Manufacturing method for touch control panel structure |
| CN103092452A (en) * | 2013-01-28 | 2013-05-08 | 北京京东方光电科技有限公司 | Capacitive touch screen and manufacturing method thereof and touch display screen |
| CN203149540U (en) * | 2013-01-28 | 2013-08-21 | 北京京东方光电科技有限公司 | Capacitive touch screen and touch display device |
| CN103777831A (en) * | 2014-01-10 | 2014-05-07 | 深圳莱宝高科技股份有限公司 | Capacitance-type touch control panel and manufacturing method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929420A (en) * | 2011-08-10 | 2013-02-13 | 富创得科技股份有限公司 | Manufacturing method for touch control panel structure |
| CN103092452A (en) * | 2013-01-28 | 2013-05-08 | 北京京东方光电科技有限公司 | Capacitive touch screen and manufacturing method thereof and touch display screen |
| CN203149540U (en) * | 2013-01-28 | 2013-08-21 | 北京京东方光电科技有限公司 | Capacitive touch screen and touch display device |
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Application publication date: 20170308 Assignee: Yungu (Gu'an) Technology Co., Ltd.|Bazhou Yungu Electronic Technology Co., Ltd.|Kunshan Institute of technology new flat panel display technology center Co., Ltd Assignor: Kunshan Guo Xian Photoelectric Co., Ltd. Contract record no.: X2019990000157 Denomination of invention: Capacitive touch screen and manufacturing method thereof and touch display screen Granted publication date: 20190308 License type: Common License Record date: 20191031 |
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Effective date of registration: 20191210 Address after: No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong province (the core of Zengcheng economic and Technological Development Zone) Patentee after: Guangzhou Guoxian Technology Co., Ltd Address before: 215300, No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou, 4 Patentee before: Kunshan Guo Xian Photoelectric Co., Ltd. |
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