CN110362220A - Touch screen film and preparation method thereof - Google Patents
Touch screen film and preparation method thereof Download PDFInfo
- Publication number
- CN110362220A CN110362220A CN201810322885.5A CN201810322885A CN110362220A CN 110362220 A CN110362220 A CN 110362220A CN 201810322885 A CN201810322885 A CN 201810322885A CN 110362220 A CN110362220 A CN 110362220A
- Authority
- CN
- China
- Prior art keywords
- code
- touch screen
- conductive layer
- screen film
- mark
- 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.)
- Withdrawn
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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
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
- G06K19/06056—Constructional details the marking comprising a further embedded marking, e.g. a 1D bar code with the black bars containing a smaller sized coding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
-
- 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 present invention relates to a kind of touch screen films and preparation method thereof.Touch screen film of the invention is when preparing leading part, utilize material layer needed for preparing leading part, mark part is prepared simultaneously, identification code is engraved using laser process on mark part again, solves the problem of touch screen film at present with identification code, existing at high cost, production procedure is many and diverse, identification code is easy recession.
Description
Technical field
The present invention relates to touch screen film applications, more particularly to a kind of touch screen film with identification code and its production
Method.
Background technique
With the development of science and technology, with touch function display screen from mobile phone, computer gradually extend to smartwatch,
The terminals such as vehicle-mounted product, since the use scope of touch screen is more and more wider, the production and selling amount of the film in touch screen also with
Increase, and be passed in vast consumer's hand.The distribution feelings of touch screen film are analyzed and counted in order to facilitate manufacturer
Condition carries out quality tracing control to touch screen film, and in touch screen film production, mark can be arranged on touch screen film
Code, but the touch screen film with identification code produced in batches at present, identification code can not accomplish uniqueness, and it is with uniqueness
The production of identification code needs to increase additional die cost, and production procedure is many and diverse.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of touch screen film, overcome touch at present with identification code
Shield film, existing problem at high cost, production procedure is many and diverse.
A kind of touch screen film, including base, light transmission conductive layer and the non-transparent conductive layer set gradually, base's packet
Visible area and non-visible area are included, the light transmission conductive layer includes that the touch control part set on visible area and first set on non-visible area connects
Socket part and first identifier portion, the first connecting portion are connect with touch control part, the first connecting portion and first identifier portion interval
Setting, the non-transparent conductive layer include set on non-visible area second connecting portion and second identifier portion, second connecting portion with
The first connecting portion, which is laminated and is overlapped setting, forms leading part, and the second identifier portion lays equal stress on first identifier portion stacking
It closes setting and forms mark part, carved with mark code on the mark part, the identification code is formed by laser-induced thermal etching.
Each layer structure in the mark part and leading part of the embodiment of the present invention is prepared by identical material layer, is reduced
Again the process for preparing mark part saves cost of manufacture, and identification code is arranged on mark part, so that each touch screen
Film has unique identity, can record required identity information on each touch screen film, exists for manufacturer
The information of statistics and analysis touch screen film provides convenience.
The second connecting portion and the second identifier portion are formed by same layer metal layer in one of the embodiments,.
Making material of the metal layer as second identifier portion has better antifalsification, and will not subside because of environment the reason of.
The identification code includes plain code in one of the embodiments, and the plain code includes reel number, Zhang Hao, pattern number, client
At least two information in code, at least two information constitute exclusive identification code.
The identification code includes private mark in one of the embodiments, the private mark include works code, the production time,
Sequence number, engineering code, version, check code, separator, reel number, Zhang Hao, pattern number, at least two information in client codes, institute
It states at least two information and constitutes exclusive identification code.
The identification code includes plain code and private mark in one of the embodiments, and the plain code includes reel number, Zhang Hao, mould
Number, at least one information in client codes, the private mark includes works code, production time, sequence number, engineering code, version
Sheet, check code, separator, reel number, Zhang Hao, pattern number, at least one information in client codes, the private mark and the plain code structure
At exclusive identification code.Exclusive identification code can be formed by way of plain code, private mark or its combination, and can wrap in plain code, private mark
A variety of production informations are included, to carry out backward tracing control to touch screen film.
The private mark is at least one of one-dimension code, two dimensional code, three-dimension code in one of the embodiments, is stated clearly
Code is character code.
Each of described plain code information is by several character representations in one of the embodiments,.According to information
Type can have the character of not isotopic number to be indicated, can be with the production procedures cooperating such as material logistics process.
A kind of production method of touch screen film, the method includes the steps:
Choose base；
Light transmission conductive layer is prepared on a surface of the base；
Non-transparent conductive layer is prepared in the light transmission conductive layer；
The light transmission conductive layer and non-transparent conductive layer are etched using yellow light technique, in the non-visible area of corresponding base, in
First identifier portion, first connecting portion are formed in light transmission conductive layer, in formation second identifier portion, the second connection on non-transparent conductive layer
Portion, the first identifier portion and the second identifier portion are laminated and are overlapped to form mark part, the first connecting portion and described
Two interconnecting pieces are laminated and are overlapped to form leading part, in the visible area of corresponding base, in forming touch control part in light transmission conductive layer, in saturating
Intermediate structure portion is formed on optical conductive layer；
Using laser etch process, pre-set identification code is engraved in the mark part；
Remove intermediate structure portion.
Each layer structure in the mark part and leading part of the embodiment of the present invention is prepared by identical material layer, is reduced
Again the process for preparing mark part saves cost of manufacture, and unique identification code is arranged on mark part, exists for manufacturer
The information of statistics and analysis touch screen film provides convenience, and improves precision of analysis, the identification code by laser
Marking forms, and has very strong antifalsification, and be not easy to subside.
The light transmission conductive layer is coated on by the way of vacuum evaporation or magnetron sputtering in one of the embodiments,
The surface of the base.
The identification code includes at least one of plain code, private mark in one of the embodiments,.The plain code is arranged can
The information of needs is quickly read for staff, and private mark can provide more carrying information in limited area, with section
Save space.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the touch screen film of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the section structure of the touch screen thin film electrode layer of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of identification code on the touch screen film of the embodiment of the present invention；
Fig. 4-Fig. 9 is that the section of the different step resulting structures of the production method of the touch screen film of the embodiment of the present invention shows
It is intended to.
Specific embodiment
As shown in Figure 1 and Figure 2, the touch screen film of the embodiment of the present invention includes base 2, mark part 3, touch control part 4, lead
Portion 5, the base 2 include visible area and non-visible area, and the touch control part 4 is located at the visible area, the mark part 3, lead
Portion 5 is located at the non-visible area, and the mark part 3 includes first identifier portion 31, second identifier portion 32, and the leading part 5 includes
First connecting portion 51, second connecting portion 52.
The first identifier portion 31, the touch control part 4 and the first connecting portion 51 are formed by one layer of transparency conducting film,
It is manufacture material usually using ITO.The second identifier portion 32 and the second connecting portion 52, by one layer of non-transparent conductive film system
It forms.The non-transparent conductive film is layer of metal film, such as the metal that copper, silver electric conductivity are high, because the good conductivity of copper,
It is at low cost, so generalling use copper film is the non-transparent conductive film.
The first identifier portion 31, the first connecting portion 51 and the touch control part 4 are located at a surface of the base 2
On.The second identifier portion 32 is located in the first identifier portion 31, and the two is stacked on top of one another is completely coincident.Described second connects
Socket part 52 is located in the first connecting portion 51, and the two is stacked on top of one another is completely coincident.The carved with mark on the mark part 3
Code 311, the identification code 311 is formed by laser index carving, using the identification code 311 of laser process marking be not easy by
Imitated and modification, has very strong antifalsification, and will not subside because of environment the reason of to a certain extent.
The identification code 311 records the identity information of the touch screen film, and according to the identity information, manufacturer can be with
Analyze and count the flow direction of the touch screen film, and every production information of backward tracing touch screen film.According to different
It needs, the combination of plain code perhaps private mark or plain code and private mark can be set into the identification code 311.
In one embodiment, the identification code 311 includes private mark 312 and plain code 313, the private mark 312 and is stated clearly
Code 313 is adjacent but be not overlapped, and the private mark 312 is at least one of one-dimension code, two dimensional code, three-dimension code, in the private mark 312
Information include works code, production time, sequence number, engineering code, version, check code, reel number, Zhang Hao, pattern number, Ke Hudai
Code etc. also can choose some of information of typing, or above-mentioned unlisted other information out is also inputted as needed
Into the private mark 312.The area that the private mark 312 occupies is small, memory capacity is big, and the information in the private mark 312 is not
It can be modified, it is highly-safe, the accuracy of statistical analysis, equipment of the private mark 312 using having barcode scanning function can be improved
Information therein is output in display device, the speed of reading can be improved, and reduce fault when counting.Usual situation
Under, the identity information in the private mark 312 includes the identity information in the plain code 313, but as needed, the private mark
312 and the plain code 313 in information can also be different.
Referring to Fig. 3, the plain code 313 is character code, and information therein can be read directly, and the plain code 313 includes film number
3131, client codes 3132, reel number 3133 and numbers 3134 etc., each of these information information can be by several character lists
Show.The plain code 313 be for convenience staff quickly read the information of needs and set, therefore according to supplier difference
Demand, the identity information of different touch screen films can be replaced in the plain code 313, with convenient reading, in statistics one
When a little basic informations, can directly be obtained in the plain code 313, without spend scanning private mark, save statistics when
Between.
It is additionally provided with flag code 314 in the top of the identification code 311, the flag code 314 is also by laser-induced thermal etching
Mode is process on the mark part 3, and flag code 314 is separated with identification code 311.The flag code 314 includes machine
Numbers 3141, the basic informations such as small film location 3142, these basic informations can be used for distinguishing the production batch of the touch screen film
It is secondary.
The present invention also provides a kind of production methods of touch screen film, specifically include step:
Referring to fig. 4, base 2 is chosen, base 2 described in an embodiment is PET material.Plating sets light transmission in the base 2
Conductive layer 6, it is usually the material for manufacturing the transparent conductive film with ITO that it is transparent conductive film that the light transmission conductive layer 6, which is one layer,
Material, the main component of ITO conductive film are tin indium oxide, and light transmission rate is high, and electric conductivity is also strong.Using magnetron sputtering embrane method or
The methods of vacuum evaporation prepares non-transparent conductive layer 7 in the light transmission conductive layer 6, and the non-transparent conductive layer 7, which is one layer, leads
Electric metal film, the metal film as made of the electric conductivity such as copper, silver high metal, be made in the base 2 has ITO conductive at this time
The base layer structure 11a of film and metal film.
Then, the light transmission conductive layer 6 and non-transparent conductive layer 7 are etched using yellow light technique.Referring to Fig. 5, described non-
Photoresist layer 8 is laid in light transmission conductive layer 7, the photoresist layer 8 uses positivity photoresist glue.
It referring to Fig. 6, chooses suitable light shield 9 and is arranged on the photoresist layer 8, recycle light source exposure, then pass through erosion
Etching solution develops to the photoresist layer 8, leaves preset pattern on the photoresist layer 8, the light shield 9 of this pattern and selection
On pattern it is identical, obtain sectional structure chart as shown in Figure 7.It is appreciated that negativity photoresist can also be used in the photoresist layer 8
Glue, using the pattern left on the photoresist layer 8 after negativity photoresist glue exposure development, with the figure on the light shield 9 of selection
Case is complementary.
Referring to figs. 7 and 8, after removing the light shield 9, respectively to the non-transparent conductive layer 7 and the light transmission conductive layer 6
It is etched, so that the position that the non-transparent conductive layer 7 and the light transmission conductive layer 6 are exposed outside the photoresist layer 8 is etched
It removes, and retains pattern identical with the photoresist layer 8, resulting structures are as shown in Figure 8.Wherein in the visual of the base 2
Area forms touch control part 4 in the light transmission conductive layer 6, forms intermediate structure portion 71 on the non-transparent conductive layer 7, this intermediate knot
Structure portion 71 will be removed in subsequent steps.First is formed in the non-visible area of the base 2, the light transmission conductive layer 6
Mark part 31, first connecting portion 51 form second identifier portion 32, second connecting portion 52, first mark on non-transparent conductive layer 7
Knowledge portion 31 and the second identifier portion 32 stacking form mark part 3, and the first connecting portion 51 and the second connecting portion 52 are folded
Layer forms leading part 5.Since the non-transparent conductive layer 7 is different with 6 material of light transmission conductive layer, need to select different erosions
Agent is carved respectively to be etched the non-transparent conductive layer 7 and the light transmission conductive layer 6.
The photoresist layer 8 is stripped, using laser device, laser-induced thermal etching is carried out to the mark part 3, to form mark
Know code 311, obtains base layer structure 11 shown in Fig. 9, it should be understood that laser-induced thermal etching process also can be set in the photoresist layer 8
Before stripping, laser-induced thermal etching at this time removes the photoresist layer 8 of part simultaneously.Base layer structure 11 with identification code 311 is because using sharp
The radium-shine process marking of light, the identification code 311 are not easy to be imitated and modify, and have very strong antifalsification, institute to a certain extent
Stating identification code 311 will not subside because of environment the reason of, and furthermore the laser process is with " light-knife " of non-mechanical to institute
It states touch screen film to be processed, the metal film and the conductive film will not be had an impact, and the laser
Process precision is high, stamp is clear, high degree of automation, and the touch screen film described in batch marking plays an important role.
Each layer structure in the mark part and leading part of the embodiment of the present invention is prepared by identical material layer, is reduced
Again the process for preparing mark part saves cost of manufacture, and identification code is arranged on mark part, so that each touch screen
Film has unique identity, can record required identity information on each touch screen film, exists for manufacturer
The information of statistics and analysis touch screen film provides convenience, and improves precision of analysis, the identification code by laser
Marking forms, and has very strong antifalsification, and be not easy to subside.
Last settable other photomask structure carries out second to the intermediate structure portion 71 and etches, the knot after etching
Structure is as shown in Fig. 2, obtain the touch screen film 1 with the identification code 311.
Above-mentioned two touch screen film 1 is stacked the touch control unit that can be used as in touch screen.
In other some embodiments, it can be made corresponding on another surface of the base 2 according to above-mentioned steps
Touch control part and leading part, thus the touch control unit as touch screen.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of touch screen film, which is characterized in that including base, light transmission conductive layer and the non-transparent conductive layer set gradually,
The base includes visible area and non-visible area, and the light transmission conductive layer includes set on the touch control part of visible area and set on non-visual
The first connecting portion in area and first identifier portion, the first connecting portion are connect with touch control part, the first connecting portion and first
The setting of mark part interval, the non-transparent conductive layer include the second connecting portion and second identifier portion set on non-visible area, the
Two interconnecting pieces, which are laminated with the first connecting portion and are overlapped setting, forms leading part, the second identifier portion and the first identifier
Portion, which is laminated and is overlapped setting, forms mark part, and carved with mark code on the mark part, the identification code is formed by laser-induced thermal etching.
2. touch screen film according to claim 1, which is characterized in that the second connecting portion and the second identifier portion
It is formed by same layer metal layer.
3. touch screen film according to claim 1, which is characterized in that the identification code includes plain code, the plain code packet
Reel number, Zhang Hao, pattern number, at least two information in client codes are included, at least two information constitutes exclusive identification code.
4. touch screen film according to claim 1, which is characterized in that the identification code includes private mark, the private mark packet
Include works code, the production time, sequence number, engineering code, version, check code, reel number, Zhang Hao, pattern number, in client codes extremely
Few two information, at least two information constitute exclusive identification code.
5. touch screen film according to claim 1, which is characterized in that the identification code includes plain code and private mark, described
Plain code includes reel number, Zhang Hao, pattern number, at least one information in client codes, when the private mark includes works code, production
Between, at least one information in sequence number, engineering code, version, check code, reel number, Zhang Hao, pattern number, client codes, it is described dark
Code and the plain code constitute exclusive identification code.
6. touch screen film according to claim 5, which is characterized in that the private mark is one-dimension code, two dimensional code, three-dimension code
At least one of, the plain code is character code.
7. touch screen film according to claim 5, which is characterized in that each of described plain code information is by several positions
Character representation.
8. a kind of production method of touch screen film, which is characterized in that comprising steps of
Choose base；
Light transmission conductive layer is prepared on a surface of the base；
Non-transparent conductive layer is prepared in the light transmission conductive layer；
The light transmission conductive layer and non-transparent conductive layer are etched using yellow light technique, in the non-visible area of corresponding base, in light transmission
On conductive layer formed first identifier portion, first connecting portion, on non-transparent conductive layer formed second identifier portion, second connecting portion,
The first identifier portion and the second identifier portion are laminated and are overlapped to form mark part, and the first connecting portion and described second connects
Socket part is laminated and is overlapped to form leading part, leads in forming touch control part in light transmission conductive layer in light transmission in the visible area of corresponding base
Intermediate structure portion is formed in electric layer；
Using laser etch process, pre-set identification code is engraved in the mark part；
Remove intermediate structure portion.
9. the method for production touch screen film according to claim 8, which is characterized in that splashed using vacuum evaporation or magnetic control
The light transmission conductive layer is coated on the surface of the base by the mode penetrated.
10. it is according to claim 8 production touch screen film method, which is characterized in that the identification code include plain code,
At least one of private mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322885.5A CN110362220A (en) | 2018-04-11 | 2018-04-11 | Touch screen film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322885.5A CN110362220A (en) | 2018-04-11 | 2018-04-11 | Touch screen film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110362220A true CN110362220A (en) | 2019-10-22 |
Family
ID=68214629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810322885.5A Withdrawn CN110362220A (en) | 2018-04-11 | 2018-04-11 | Touch screen film and preparation method thereof |
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