CN106873829A - Touch control display and its manufacture method - Google Patents
Touch control display and its manufacture method Download PDFInfo
- Publication number
- CN106873829A CN106873829A CN201710057501.7A CN201710057501A CN106873829A CN 106873829 A CN106873829 A CN 106873829A CN 201710057501 A CN201710057501 A CN 201710057501A CN 106873829 A CN106873829 A CN 106873829A
- Authority
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- China
- Prior art keywords
- protective layer
- layer
- control display
- touch control
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention relates to a kind of touch control display.The touch control display, comprising circuit layer, the first protective layer and the second protective layer.Circuit layer has the first width.First protective layer has the second width more than the first width.First protective layer and the second protective layer are located at the both sides of circuit layer, and second protective layer used preventing the first protective layer from bending.
Description
Technical field
The present invention relates to a kind of touch control display and its manufacture method.
Background technology
Touch control display in the car is traditionally provided on the display screen of automotive interior.In order to allow, be driven in can
Touch control display easily is used in the case of to be not necessary to transformation angle, touch control display is made in front window by many automobiles in recent years
On.
The content of the invention
One aspect of this case is to provide a kind of touch control display, and it includes circuit layer, the first protective layer and the second protective layer.
Circuit layer has the first width.First protective layer has the second width more than the first width.First protective layer and the second protection
Layer be located at circuit layer both sides, and second it is protective layer used with prevent the first protective layer bend.
The another aspect of this case is to provide a kind of preparation method of touch control display, and it includes the second protective layer of setting；Will
Circuit layer is placed on the second protective layer；First protective layer is placed on circuit layer；And structure glue is filled first
The surrounding of the circuit layer between protective layer and the second protective layer.
This disclosure aims to provide simplifying for this disclosure and makes a summary, so that reader possesses substantially to this disclosure
Understanding.The complete overview of this disclosure not this disclosure, and it is not intended to pointing out the weight of this announcement embodiment
Want component or define the scope of this announcement.
Brief description of the drawings
When read in conjunction with the accompanying drawings, from the aspect that would be well understood this disclosure of documents described in detail below.It should be noted that root
According to the standard practice in industry, each feature is not necessarily drawn to scale.In fact, for clear purpose is discussed, can arbitrarily increase
Or reduce the size of each feature.
Fig. 1 is the structural representation according to a kind of touch control display depicted in this case some embodiments；
Fig. 2 is the structural representation according to a kind of touch control display depicted in this case some embodiments；
Fig. 3 is the structural representation according to another touch control display depicted in this case some embodiments；
Fig. 4 is the Making programme schematic diagram according to a kind of touch control display in the Fig. 3 depicted in this case some embodiments.
Main element symbol description
100：Touch control display
110：First protective layer
112：Ink layer
120：Adhesion layer
130：Circuit layer
140：Second protective layer
200：Touch control display
210：First protective layer
212：Ink layer
220：First adhesion layer
230：Circuit layer
240：Second protective layer
250：Second adhesion layer
260：Polarizer
270：Liquid crystal display module
280：Framework
300：Touch control display
310：First protective layer
320：Adhesion layer
330：Circuit layer
340：Second protective layer
350：Structure glue
400：The Making programme of touch control display 300
S402、S404、S406、S408、S410、S412：Step
Specific embodiment
Be referred to as when an element " ... on " when, it can refer to the element directly in other elements, or has
Other elements are present among both.On the contrary, when an element is referred to as " directly existing " another element, it is that can not have other
It is middle that element is present in both.As used herein, vocabulary " and/or " contain in the associated item listed one or more
Any combinations.
Additionally, relative vocabulary, such as D score or " bottom " with " on " or " top ", it is shown in the accompanying drawings in text for describing
The relation of one element and another element.With respect to vocabulary be for describe device it is described in the accompanying drawings outside different azimuth be can
With what is be understood.If for example, the device in an accompanying drawing is reversed, it was D score positioned at other elements that element will be described originally
Side will be oriented positioned at other elements it " on " side.Exemplary vocabulary D score, particular orientation with reference to the accompanying drawings can comprising "
Under " and " on " two kinds of orientation.Similarly, if the device in an accompanying drawing is reversed, it was positioned at other that element will be described originally
Element its " lower section " or " under " in other elements its " top " will be oriented.Exemplary vocabulary " lower section " or " it
Under ", " top " and " top " two kinds of orientation can be included.
Fig. 1 is the structural representation according to a kind of touch control display 100 depicted in this case some embodiments.In some realities
Apply in example, touch control display 100 includes the first protective layer 110, adhesion layer 120, the protective layer 140 of circuit layer 130 and second.
The touch control display 100 of this disclosure can be arranged on the front window of vehicle, so that drive under steam can be same
When grasp other running informations shown on road conditions and screen.
If it is too strong to collide dynamics when due to collision scenario, the glass fragmentation faced of front window can be caused, and those fragments
It is likely to injure driving and passenger.To solve above-mentioned situation, the material of touch control display 100 can use plastic material,
Plastic material is not likely to produce excessive fragment in external force collision.
In the present embodiment, the first protective layer 110 be plastics the dilatable material of material, or heat or
Dilatable material when humidity is high around.It is to be understood that the first protective layer 110 is influenceed by temperature (or humidity)
Under, easily produce deformation.The stencil layer 112 in the lower surface of the first protective layer 110 periphery.Ink layer 112 has shielding high,
And can well be attached to the first protective layer 110.
One layer of adhesion layer 120 is provided between the first protective layer 110 and circuit layer 130.Adhesion layer 120 is used to circuit layer
130 are fixed on the lower section of the first protective layer 110, and prevent the first protective layer 110 and the directly contact of circuit layer 130.Prevent
The reason for one protective layer 110 and 130 directly contact of circuit layer is when automobile occurs slight impact or traveling is rocked, it is to avoid the
Friction or collision are produced between one protective layer 110 and circuit layer 130 and circuit layer 130 is damaged.
Circuit layer 130 is used to sense the operation of (i.e. touch-control sensing) user, and then carries out corresponding behavior.Circuit layer
130 because of the purposes shown as touch-control, its internal many circuit and chip, thus must prevention circuit layer 130 bend or crush and
The short circuit or damage for causing.The present embodiment only provides the circuit layer 130 to touch-control sensing, but any required first protective layer
110 preventing the device of external force influence all in the scope that this disclosure is protected.
If touch control display 100 only has the first protective layer 110 and circuit layer 130, and the thermal coefficient of expansion of the first protective layer 110
More than the thermal coefficient of expansion of circuit layer 130, when temperature is raised, layers of material is varied with temperature and swollen in touch control display 100
Swollen, the coefficient of expansion due to the coefficient of expansion of the first protective layer 110 more than circuit layer 130, touch control display 100 is bent downwardly, because
This circuit layer 130 can also occur not expected deformation, touch controllable function may be caused to fail, the touch-control input of mistake is produced or made
Into the permanent damage of circuit.
Similarly, upon a drop in temperature, layers of material is varied with temperature and reduced in touch control display 100, due to first
The thermal coefficient of expansion of protective layer 110 is more than the thermal coefficient of expansion of circuit layer 130, and touch control display 100 is bent upwards, and also results in electricity
The deformation of road floor 130.
To prevent external force from influenceing touch control display 100 to bend, this disclosure of documents increases one layer of second protective layer 140 newly.Second
The material of protective layer 140 can be the plastic material such as polymethyl methacrylate (PMMA) or makrolon (PC), implement one
In example, the second protective layer 140 uses the coefficient of expansion material close with the first protective layer 110, to prevent circuit layer 130 from bending.
The thickness of the second protective layer 140 is 0.05mm~3mm.
Assuming that thermal coefficient of expansion and second protective layer 140 of the thermal coefficient of expansion of the first protective layer 110 more than circuit layer 130
Thermal coefficient of expansion and the first protective layer 110 thermal coefficient of expansion quite, when temperature is raised, because of the heat of the first protective layer 110
The coefficient of expansion is more than the thermal coefficient of expansion of circuit layer 130, and the first protective layer 110 can be bent upwards, and because of the second protective layer 140
More than the thermal coefficient of expansion of circuit layer 130, the second protective layer 140 can be bent downwardly that (and the first protective layer 110 is curved to thermal coefficient of expansion
Bent direction is relative).Therefore being bent upwards for the first protective layer 110 cancels each other with the second being bent downwardly for protective layer 140, with
Do not influenceed by temperature rising as circuit layer.
Similarly, upon a drop in temperature, layers of material is varied with temperature and reduced in touch control display 100, due to first
Protective layer 110 is bent downwardly and the second protective layer 140 is bent upwards, and cancels each other and causes circuit layer 130 not receive temperature drop institute
Influence.
In the above-described embodiments, it is that there is similar thermal coefficient of expansion to the second protective layer 140 with the first protective layer 110,
And both thermal coefficient of expansion is different from the thermal coefficient of expansion of circuit layer 130 and is illustrated, but this disclosure of documents not with
This is limited.In another embodiment, the first protective layer 110 can have similar hygral expansion coefficient to the second protective layer 140, and
Both hygral expansion coefficients are different from the hygral expansion coefficient of circuit layer 130, can thus be avoided when ambient humidity changes
Deform upon.
Fig. 2 is the structural representation according to a kind of touch control display 200 depicted in this case some embodiments.Touch-control shows
Device 200 comprising the first protective layer 210, the first adhesion layer 220, circuit layer 230, the second protective layer 240, the second adhesion layer 250, partially
Tabula rasa 260, liquid crystal display module 270 and framework 280.
First protective layer 210 is the material of plastics, is also probably the material that other heats can bend.It is to be understood that the
One protective layer 210 easily produces bending under the influence of by temperature (or humidity).First protective layer 210 has width w1.
The stencil layer 212 in the lower surface of the first protective layer 210 periphery.Ink layer 212 has shielding high, and can be very well
Be attached to the first protective layer 110.
First adhesion layer 220 is arranged between the first protective layer 210 and circuit layer 230, and with width w2 and height h1,
Wherein width w2 is less than width w1.First adhesion layer 220 is used to bind the first protective layer 210 and circuit layer 230, by circuit
Layer 330 is fixed on the lower section of the first protective layer 210.
Circuit layer 230 is arranged between the first adhesion layer 220 and the second protective layer 240, and with width w2 and height h2.
Circuit layer 230 is used to sense the operation of (i.e. touch-control sensing) user, and then carries out corresponding behavior.The present embodiment only provides use
With the circuit layer 230 of touch-control sensing, but any required first protective layer 210 is interior all in this announcement with the device for preventing external force from influenceing
In the protected scope of appearance.
Second protective layer 240 is arranged between the adhesion layer 250 of circuit layer 230 and second, and with width w2 and height h3.
Second protective layer 240 is used to balance the bending that the first protective layer 210 is influenceed and produced by temperature (or humidity), and then makes touch-control
Display 200 is not influenceed and deformed by temperature (or humidity).
Second adhesion layer 250 is arranged between the second protective layer 240 and Polarizer 260, and with height h4.Second sticks together
Layer 250 is used to be binded between the second protective layer 240 and Polarizer 260, and is used to fill up the second protective layer 240 and Polarizer
Space between 260.Second adhesion layer 250 is full laminating adhesion layer.
Polarizer 260 is arranged between the second adhesion layer 250 and liquid crystal display module 270, and with height h5.Due to liquid
Brilliant without oneself actively luminous ability, liquid crystal need to be directed at a specific direction by it by Polarizer 260, adjusted display and shown
The shading value of light out.
Liquid crystal display module 270 is arranged under Polarizer 260, and with height h6.
Framework 280 has height h7, and is used to protect liquid crystal display module 270, is chase in the present embodiment, but it is various can
To be used to protect the framework of liquid crystal display module 270 all in the range of this disclosure is protected.
Due to height h1, the height h2 of circuit layer 230, the second protective layer that the height of framework 280 is the first adhesion layer 220
The height h6 of 240 height h3, the height h4 of the second adhesion layer 250, the height h5 of Polarizer 260 and liquid crystal display module 270
Summation, that is, h7=h1+h2+h3+h4+h5+h6.The thickness h 4=h7-h1-h2-h3-h5-h6 of the second adhesion layer 250,
When without the second protective layer 240 (i.e. height h3=0 of the second protective layer 240), the height h4 of the second adhesion layer 250 is higher.
It is to be understood that plus after the second protective layer 240, its height h3 can offset the height h7 of framework 280, and then the can be reduced
The height h4 of two adhesion layers 250, to save the consumption of adhesive agent and the stability of lifting touch control display 200.
Fig. 3 is the structural representation according to another touch control display 300 depicted in this case some embodiments.Touch-control shows
Show that device 300 includes the first protective layer 310, adhesion layer 320, circuit layer 330, the second protective layer 340 and structure glue 350.
First protective layer 310 is the material, or the dilatable material of other heats of plastics.It is to be understood that the
One protective layer 310 easily produces change in size under the influence of by temperature (or humidity).First protective layer 310 has width
Degree w1 '.
The stencil layer 312 in the lower surface of the first protective layer 310 periphery.Ink layer 312 has shielding high, and can be very well
Be attached to the first protective layer 310.
Adhesion layer 320 is arranged between the first protective layer 310 and circuit layer 330, and with width w2 ' (wherein w2 '<
W1 ') and height h1 '.
Circuit layer 330 is arranged between the protective layer 340 of adhesion layer 320 and second, and with width w2 ' (wherein w2 '<
W1 ') and height h2 '.Circuit layer 330 is used to sense the operation of (i.e. touch-control sensing) user, and then carries out corresponding behavior.This
Embodiment only provides the circuit layer 330 to touch-control sensing, but any required first protective layer 310 to prevent the dress of external force influence
Put all in the scope that this disclosure is protected.
Second protective layer 340 is arranged under circuit layer 330, and with width w3 ' (wherein w1 ' w3 '>w2’).Second protects
Sheath 340 is used to prevent the flexural deformation of the first protective layer 310, and its material can be polymethyl methacrylate (PMMA) or poly-
The plastic materials such as carbonic ester (PC), thickness is 0.05mm~3mm.
Structure glue 350 is arranged on around adhesion layer 320 and circuit layer 330 and the first protective layer 310 and the second protective layer
Between 340, and with width w4 ' (wherein w4 '+w4 '+w2 '=w3 ') and height h3 ' (wherein h3 '=h1 '+h2 ').Structure glue
350 is to be used to the stability of reinforcement structure, prevent touch control display 300 from bending and protection circuit layer 330.
Fig. 4 is to be shown according to the Making programme 400 of touch control display 300 in a kind of Fig. 3 depicted in this case some embodiments
It is intended to.Making programme 400 includes operation S402, S404, S406, S408, S410, S412, and its reference picture 3 is described below.
In S402 is operated, there is provided one first protective layer 310.
In S404 is operated, the stencil layer 312 in the lower surface of the first protective layer 310 periphery.
In S406 is operated, there is provided an adhesion layer 320 is below the first protective layer 310.This step is in order to by circuit layer
330 and first protective layer 310 engage.
In S408 is operated, there is provided a circuit layer 330 is below adhesion layer 320.This step is in order to circuit layer 330 is consolidated
It is scheduled under the first protective layer 310.
In S410 is operated, there is provided one second protective layer 340.In this step, there is provided one second protective layer 340 is to keep away
Exempt from the first protective layer 310 to bend.
In S412 is operated, structure glue 350 is coated on the surrounding of circuit layer 330, as shown in figure 3, structure glue 350 is filled up
Between first protective layer 310 and the second protective layer 340 and positioned at the space of the surrounding of circuit layer 330.This step is in order that touch-control
The structure of display 300 is more stablized.
Although this case is disclosed above with implementation method, so itself and non-limiting this case, any those of ordinary skill in the art,
In the spirit and scope for not departing from this case, when can make various variations with modification.Therefore the protection domain of this case is when with right
What claim was limited is defined.
Claims (10)
1. a kind of touch control display, it is characterised in that include:
One circuit layer, with one first width；
There is one first protective layer, first protective layer one second width to be more than first width；And
One second protective layer, first protective layer and second protective layer are located at the both sides of the circuit layer, and this is second protective layer used
To prevent first protective layer from bending.
2. touch control display as claimed in claim 1, it is characterised in that the wherein coefficient of expansion of one of first protective layer first
It is substantially equal to the coefficient of expansion of one of second protective layer second.
3. touch control display as claimed in claim 1, it is characterised in that wherein second protective layer has one the 3rd width big
In first width, the touch control display is further included：
One structure glue, between first protective layer and second protective layer and in the circuit layer surrounding.
4. touch control display as claimed in claim 1, it is characterised in that wherein the circuit layer is touch module.
5. touch control display as claimed in claim 1, it is characterised in that wherein the material of first protective layer is plastics.
6. touch control display as claimed in claim 1, it is characterised in that wherein the material of second protective layer be acryl,
Shellproof glue.
7. touch control display as claimed in claim 1, it is characterised in that wherein the structure glue seals the circuit layer surrounding.
8. a kind of preparation method of touch control display, it is characterised in that include:
One first protective layer is set；
One circuit layer is placed under first protective layer；
One second protective layer is placed under the circuit layer；And
A structure glue is coated with the surrounding of the circuit layer.
9. the preparation method of touch control display as claimed in claim 8, it is characterised in that wherein one of circuit layer first is wide
Degree is less than one of first protective layer width of one of the second width and second protective layer the 3rd.
10. the preparation method of touch control display as claimed in claim 8, it is characterised in that the wherein structure glue is by the circuit
Layer sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057501.7A CN106873829B (en) | 2017-01-26 | 2017-01-26 | Touch display and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057501.7A CN106873829B (en) | 2017-01-26 | 2017-01-26 | Touch display and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106873829A true CN106873829A (en) | 2017-06-20 |
| CN106873829B CN106873829B (en) | 2020-08-07 |
Family
ID=59159272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710057501.7A Active CN106873829B (en) | 2017-01-26 | 2017-01-26 | Touch display and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN106873829B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530667A (en) * | 2003-03-12 | 2004-09-22 | ������������ʽ���� | Radiographic detector and producing method thereof |
| CN103365465A (en) * | 2013-06-04 | 2013-10-23 | 业成光电（深圳）有限公司 | Touch panel and protection substrate used for touch panel |
| CN103715365A (en) * | 2012-09-28 | 2014-04-09 | 三星显示有限公司 | Organic light emitting diode display and method of manufacturing the same |
| CN105280836A (en) * | 2015-09-10 | 2016-01-27 | 上海和辉光电有限公司 | Method for preparing flexible protective layer and flexible display device |
| CN105426001A (en) * | 2015-11-19 | 2016-03-23 | 业成光电（深圳）有限公司 | Touch apparatus and wearable electronic apparatus |
| JP2016083946A (en) * | 2014-10-23 | 2016-05-19 | 日本精機株式会社 | Vehicular display device |
| CN205451012U (en) * | 2016-02-19 | 2016-08-10 | 纳智源科技（唐山）有限责任公司 | Polaroid and touch -sensitive display device with touch -control and forced induction function |
-
2017
- 2017-01-26 CN CN201710057501.7A patent/CN106873829B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530667A (en) * | 2003-03-12 | 2004-09-22 | ������������ʽ���� | Radiographic detector and producing method thereof |
| CN103715365A (en) * | 2012-09-28 | 2014-04-09 | 三星显示有限公司 | Organic light emitting diode display and method of manufacturing the same |
| CN103365465A (en) * | 2013-06-04 | 2013-10-23 | 业成光电（深圳）有限公司 | Touch panel and protection substrate used for touch panel |
| JP2016083946A (en) * | 2014-10-23 | 2016-05-19 | 日本精機株式会社 | Vehicular display device |
| CN105280836A (en) * | 2015-09-10 | 2016-01-27 | 上海和辉光电有限公司 | Method for preparing flexible protective layer and flexible display device |
| CN105426001A (en) * | 2015-11-19 | 2016-03-23 | 业成光电（深圳）有限公司 | Touch apparatus and wearable electronic apparatus |
| CN205451012U (en) * | 2016-02-19 | 2016-08-10 | 纳智源科技（唐山）有限责任公司 | Polaroid and touch -sensitive display device with touch -control and forced induction function |
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| Publication number | Publication date |
|---|---|
| CN106873829B (en) | 2020-08-07 |
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