CN106484193A - A kind of capacitive touch screen - Google Patents
A kind of capacitive touch screen Download PDFInfo
- Publication number
- CN106484193A CN106484193A CN201611200528.9A CN201611200528A CN106484193A CN 106484193 A CN106484193 A CN 106484193A CN 201611200528 A CN201611200528 A CN 201611200528A CN 106484193 A CN106484193 A CN 106484193A
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- Prior art keywords
- touch screen
- layer
- shadow
- capacitive touch
- disappears
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Classifications
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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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Position Input By Displaying (AREA)
Abstract
This application discloses a kind of capacitive touch screen, disappear shadow layer including first of the lower surface setting in substrate, make transparency electrode in the described first lower surface disappearing shadow layer, the lower surface of described transparency electrode is additionally provided with least one and second disappears shadow layer.Therein first disappear shadow layer and second disappear shadow layer be have disappear shadow effect transparent optical layers, generally double-decker, by controlling the thickness of duplicature, realize the shadow that disappears using the interference effect between high index of refraction and the material of low-refraction, it can be avoided that the aberration of ito film and etched area, avoid the appearance of bottom shadow, meet the requirement for touch screen for the people.
Description
Technical field
The invention belongs to display device technical field, more particularly to a kind of capacitive touch screen.
Background technology
With modern society's technology and expanding economy, intelligentized horizontal more and more higher, and penetrated into me
Daily life a lot of aspects, bring huge facility to our daily life, all-around intelligentization experience is following sending out
The trend of exhibition.The type of touch screens of main flow has R touch screen (touch screens) and C touch screen (capacitance plate) at present, and C touch screen is
Gradually replace R touch screen and occupy staple market.Screen products are touched for C, ITO is presently preferred conductive material, but
Make ITO pattern, that is, on glass during sputter layer of transparent electrode, due to ITO refractive index with glass refraction not
With therefore ITO region has obvious sight equation with non-ITO region that is to say, that etching trace is visible.
Prior art be between ito film and glass plating last layer IM film (index matching, refer to have disappear shadow effect
Transparent optical layers), the reflectance in visible region for this film be coated with ito film after reflectance close, make ito film and etching
The aberration in area reduces, to reach the shadow effect that disappears.But it is only capable of reducing bottom shadow impact to a certain extent using this technology, especially
On the premise of screen being had AR (anti reflection, fall is anti-anti-reflection) process, this shadow effect that disappears does not reach people to touch
The requirement of screen.
Content of the invention
For solving the above problems, the invention provides a kind of capacitive touch screen, it can be avoided that the color of ito film and etched area
Difference, it is to avoid the appearance of bottom shadow, meets the requirement for touch screen for the people.
A kind of capacitive touch screen that the present invention provides, first including the lower surface setting in substrate disappears shadow layer, in institute
State the first lower surface disappearing shadow layer and make transparency electrode, the lower surface of described transparency electrode is additionally provided with least one and second disappears shadow
Layer.
Preferably, in above-mentioned capacitive touch screen, described second disappear shadow layer include silicon dioxide layer and be located at described two
The silicon nitride layer of silicon oxide layer lower surface or niobium pentaoxide layer.
Preferably, in above-mentioned capacitive touch screen, the described second quantity disappearing shadow layer is one.
Preferably, in above-mentioned capacitive touch screen, described first disappear shadow layer include silicon dioxide layer and be located at described two
The silicon nitride layer of silicon oxide layer upper surface or niobium pentaoxide layer.
Preferably, in above-mentioned capacitive touch screen, described second lower surface disappearing shadow layer is additionally provided with that the first fall is counter to be increased
Permeable membrane.
Preferably, in above-mentioned capacitive touch screen, described substrate is glass.
Preferably, in above-mentioned capacitive touch screen, the upper surface of described substrate is additionally provided with the anti-anti-reflection film of the second fall.
Preferably, in above-mentioned capacitive touch screen, the upper surface of the described second anti-anti-reflection film of fall is additionally provided with anti-fingerprint
Film.
The above-mentioned capacitive touch screen being provided by foregoing description, the present invention, due to including the lower surface in substrate
The first of setting disappears shadow layer, makes transparency electrode in the described first lower surface disappearing shadow layer, the lower surface of described transparency electrode is also
It is provided with least one second to disappear shadow layer, therefore, it is possible to avoid the aberration of ito film and etched area, it is to avoid the appearance of bottom shadow, meet
People are for the requirement of touch screen.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing providing obtains other accompanying drawings.
The schematic diagram of the first capacitive touch screen that Fig. 1 provides for the embodiment of the present application；
The schematic diagram of the 5th kind of capacitive touch screen that Fig. 2 provides for the embodiment of the present application.
Specific embodiment
The core concept of the present invention is to provide a kind of capacitive touch screen, it can be avoided that the aberration of ito film and etched area,
Avoid the appearance of bottom shadow, meet the requirement for touch screen for the people.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
The first capacitive touch screen that the embodiment of the present application provides is as shown in figure 1, what Fig. 1 provided for the embodiment of the present application
The schematic diagram of the first capacitive touch screen, this capacitive touch screen includes first the disappearing shadow layer of lower surface setting in substrate 1
2, the shadow layer that disappears (IM, index matching) mentioned here refers to the transparent optical layers with the shadow effect that disappears, generally double
Rotating fields, by controlling the thickness of duplicature, using the principle of interference between the different material of high low-refraction, after making etching
The transparency electrode being formed and the reflectance in non-transparent electrode region closely, to weaken visual contrast, reach elimination ITO electrode
The purpose of bottom shadow, the difference (| R1-R2 |, characterize bottom shadow effect) of reflectance typically can control within 1%, disappears shadow described first
The lower surface of layer 2 makes transparency electrode 3, and this transparency electrode can be but not limited to ITO, but, some are had high demands
For touch screen, this structure does not reach the requirement to bottom shadow for the people yet, and therefore, the lower surface of described transparency electrode 3 also sets up
Have at least one second to disappear shadow layer 4, disappeared the Film Design of shadow layer by adjusting the first shadow layer and second that disappears, can make reflectance it
Difference (| R1-R2 |) is less than 0.5%, even more little, makes one eye and can't see transparency electrode etched mark.
The first capacitive touch screen above-mentioned being provided by foregoing description, the embodiment of the present application, due to including
The first of the lower surface setting of substrate disappears shadow layer, makes transparency electrode, described transparent electrical in the described first lower surface disappearing shadow layer
The lower surface of pole is additionally provided with least one and second disappears shadow layer, therefore, it is possible to avoid the aberration of ito film and etched area, it is to avoid bottom shadow
Appearance, meet the requirement for touch screen for the people.
The second capacitive touch screen that the embodiment of the present application provides, is the basis in the first capacitive touch screen above-mentioned
On, also include following technical characteristic：
Described second disappear shadow layer include silicon dioxide layer and be located at described silicon dioxide layer lower surface silicon nitride layer or five
Aoxidize two niobium layers.
It should be noted that SiO2Refractive index be 1.46, Nb2O5Refractive index be 2.3, Si3N4Refractive index be 2.06,
By interference effect between high index of refraction and the material of low-refraction (as interfered cancellation, certainly in Nano grade thickness, can
Interference can not be only included) come to realize, so correspondence disappears, the thickness of each material of shadow layer need to be carried out according to the transparency electrode of sputter
Adjustment, for the transparency electrode of different-thickness, the corresponding design disappearing shadow membrane system is also different, all in nanoscale scope
Interior.
The third capacitive touch screen that the embodiment of the present application provides, is the basis in above-mentioned second capacitive touch screen
On, also include following technical characteristic：
Described second quantity disappearing shadow layer is one.
It should be noted that at least there are the one second shadow Rotating fields that disappear could disappear the cooperation of shadow layer with first, so that visible
The reflectivity curve of optical band is as far as possible smooth, and certain more layers is also possible, but the more prices of the number of plies are more expensive, therefore excellent herein
Elect one layer as, the shadow purpose that preferably disappears can be realized under the premise of lower-cost.
The 4th kind of capacitive touch screen that the embodiment of the present application provides, is the basis in the third capacitive touch screen above-mentioned
On, also include following technical characteristic：
Described first disappear shadow layer include silicon dioxide layer and be located at described silicon dioxide layer upper surface silicon nitride layer or five
Aoxidize two niobium layers.
It should be noted that SiO2Refractive index be 1.46, Nb2O5Refractive index be 2.3, Si3N4Refractive index be 2.06,
By interference effect between high index of refraction and the material of low-refraction (as interfered cancellation, certainly in Nano grade thickness, can
Interference can not be only included) come to realize, so correspondence disappears, the thickness of each material of shadow layer need to be carried out according to the transparency electrode of sputter
Adjustment, for the transparency electrode of different-thickness, the corresponding design disappearing shadow membrane system is also different, all in nanoscale scope
Interior.
The embodiment of the present application provide the 5th kind of capacitive touch screen, be above-mentioned the first to the 4th kind of capacitance touch
In screen on the basis of any one, also include following technical characteristic：
With reference to Fig. 2, the schematic diagram of the 5th kind of capacitive touch screen that Fig. 2 provides for the embodiment of the present application, described second disappears
The lower surface of shadow layer 4 is additionally provided with the anti-anti-reflection film of the first fall 5, can reduce the reflectance of glass one side, (fall is anti-to be increased this layer of AR film
Permeable membrane) need according to the glue between whole touch screen and touch screen and LCD come design structure.
The 6th kind of capacitive touch screen that the embodiment of the present application provides, is the basis in above-mentioned 5th kind of capacitive touch screen
On, also include following technical characteristic：
Described substrate is glass, and this is a kind of substrate being easier to acquisition and low cost, has enough intensity, therefore suitable
As substrate herein.
The 7th kind of capacitive touch screen that the embodiment of the present application provides, is the basis in above-mentioned 6th kind of capacitive touch screen
On, also include following technical characteristic：
With continued reference to Fig. 2, the upper surface of described substrate 1 is additionally provided with the anti-anti-reflection film of the second fall 6, and this just can drop further
The reflectance of low glass another side, strengthens Consumer's Experience.
The 8th kind of capacitive touch screen that the embodiment of the present application provides, is the basis in above-mentioned 7th kind of capacitive touch screen
On, also include following technical characteristic：
With continued reference to Fig. 2, the upper surface of the described second anti-anti-reflection film 6 of fall is additionally provided with anti-fingerprint film 7, and this anti-fingerprint film is
AF (Anti-Fingerprint) layer, the visibility its role is to by desalination, decomposing fingerprint oils and fatss, plays the work of anti-fingerprint
With.
In sum, in transparency electrode, such as sputter disappears shadow layer simultaneously on the two sides of ITO pattern, that is, double-deck IM it is achieved that
On the premise of not increasing touch screen overall reflectivity, reach the purpose eliminating bottom shadow, improve the service quality of touch screen.For
Different touch screens it is desirable to transparency electrode surface resistance different, surface resistance with transparency electrode thickness relevant that is to say, that splashing
The thickness of the transparency electrode of plating is different, and this is accomplished by the different shadow coating systems that disappear come the shadow that to carry out disappearing, so two shadow layers that disappear
In bi-material thickness require with different touch screen depending on.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (8)
1. a kind of capacitive touch screen, first including the lower surface setting in substrate disappears shadow layer, disappears shadow layer described first
Lower surface makes transparency electrode it is characterised in that the lower surface of described transparency electrode is additionally provided with least one second disappears shadow layer.
2. capacitive touch screen according to claim 1 is it is characterised in that the described second shadow layer that disappears includes silicon dioxide layer
With the silicon nitride layer positioned at described silicon dioxide layer lower surface or niobium pentaoxide layer.
3. capacitive touch screen according to claim 2 is it is characterised in that the described second quantity disappearing shadow layer is one.
4. capacitive touch screen according to claim 3 is it is characterised in that the described first shadow layer that disappears includes silicon dioxide layer
With the silicon nitride layer positioned at described silicon dioxide layer upper surface or niobium pentaoxide layer.
5. the capacitive touch screen according to any one of claim 1-4 is it is characterised in that the described second following table disappearing shadow layer
Face is additionally provided with the anti-anti-reflection film of the first fall.
6. capacitive touch screen according to claim 5 is it is characterised in that described substrate is glass.
7. capacitive touch screen according to claim 6 is it is characterised in that the upper surface of described substrate is additionally provided with second
Anti- anti-reflection film drops.
8. capacitive touch screen according to claim 7 is it is characterised in that described second drops the upper surface of anti-anti-reflection film also
It is provided with anti-fingerprint film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200528.9A CN106484193A (en) | 2016-12-22 | 2016-12-22 | A kind of capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200528.9A CN106484193A (en) | 2016-12-22 | 2016-12-22 | A kind of capacitive touch screen |
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| Publication Number | Publication Date |
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| CN106484193A true CN106484193A (en) | 2017-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611200528.9A Pending CN106484193A (en) | 2016-12-22 | 2016-12-22 | A kind of capacitive touch screen |
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| Country | Link |
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| CN (1) | CN106484193A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109032410A (en) * | 2018-07-26 | 2018-12-18 | 京东方科技集团股份有限公司 | Touch-control display panel and preparation method thereof, electronic equipment |
| CN110129750A (en) * | 2019-05-20 | 2019-08-16 | 信利光电股份有限公司 | A kind of film plating process of double shadow layers that disappear |
| CN110780774A (en) * | 2019-10-28 | 2020-02-11 | 深圳莱宝高科技股份有限公司 | Integrated black suspension touch panel and touch display screen |
| CN113791703A (en) * | 2021-08-26 | 2021-12-14 | 牧东光电科技有限公司 | Etching-free touch display screen and manufacturing method thereof |
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| CN104834420A (en) * | 2015-04-16 | 2015-08-12 | 张家港市铭斯特光电科技有限公司 | Conductive glass for capacitive touch screen and preparation process thereof |
| CN105278710A (en) * | 2014-06-17 | 2016-01-27 | 恒颢科技股份有限公司 | Touch control display |
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| CN105278710A (en) * | 2014-06-17 | 2016-01-27 | 恒颢科技股份有限公司 | Touch control display |
| CN104834420A (en) * | 2015-04-16 | 2015-08-12 | 张家港市铭斯特光电科技有限公司 | Conductive glass for capacitive touch screen and preparation process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109032410A (en) * | 2018-07-26 | 2018-12-18 | 京东方科技集团股份有限公司 | Touch-control display panel and preparation method thereof, electronic equipment |
| CN110129750A (en) * | 2019-05-20 | 2019-08-16 | 信利光电股份有限公司 | A kind of film plating process of double shadow layers that disappear |
| CN110780774A (en) * | 2019-10-28 | 2020-02-11 | 深圳莱宝高科技股份有限公司 | Integrated black suspension touch panel and touch display screen |
| CN113791703A (en) * | 2021-08-26 | 2021-12-14 | 牧东光电科技有限公司 | Etching-free touch display screen and manufacturing method thereof |
| CN113791703B (en) * | 2021-08-26 | 2024-04-12 | 牧东光电科技有限公司 | Touch display screen without etching lines and manufacturing method thereof |
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Application publication date: 20170308 |
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