CN106227394B - A kind of recessiveness cover board touch screen and its production method - Google Patents
A kind of recessiveness cover board touch screen and its production method Download PDFInfo
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- CN106227394B CN106227394B CN201610599119.4A CN201610599119A CN106227394B CN 106227394 B CN106227394 B CN 106227394B CN 201610599119 A CN201610599119 A CN 201610599119A CN 106227394 B CN106227394 B CN 106227394B
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/14—Printing or colouring
- B32B38/145—Printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/34—Printing on other surfaces than ordinary paper on glass or ceramic surfaces
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/208—Touch screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2200/00—Printing processes
- B41P2200/40—Screen printing
-
- 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 discloses a kind of recessive cover board touch screen and its production method, the touch screen of the present invention is Glass Glass structures, by the way that black ink is printed on inductive layer electrode surface, traditional cover board and touch panel sensor are merged in layer glass, make top glass substrate while having the function of cover board, simplifies touch screen structure；Simultaneously as the induction electrode and driving electrodes of inventive touch screen are the cabling modes for avoiding traditional " caterpillar " in top glass substrate and lower glass substrate upward wiring respectively, so as to realize the production of large scale touch screen (21 " following)；In addition, the touch screen of the present invention has better impact resistance ability, in industry control or mobile unit more safely, can be produced on a large scale using double-layer glass structure, and by being provided with optical clear resin glue between double glazing.
Description
Technical field
The present invention relates to touch screens, and in particular to a kind of recessiveness cover board touch screen and its production method.
Background technology
Touch screen is a kind of inductive arrangement of the input signals such as receivable contact, is generally applied in combination with display screen,
When contacting the graphic button on screen, the haptic feedback system on screen can drive various companies according to the formula of preprogramming
Device is tied, is substituted for mechanical push button panel, and lively visual and sound effects are produced by display picture.Touch screen is made
For a kind of newest computer input apparatus, it be it is most simple at present, conveniently, a kind of natural man-machine interaction mode.It is imparted
Multimedia is extremely attractive completely new multimedia interactive equipment with brand-new looks.Be widely used in public information inquiry,
Leader's office, Industry Control, military commanding, electronic game, choosing song or selecting dish, multimedia teaching etc..
Since capacitive touch screen has the characteristics that support multiple point touching, high sensitivity and pinpoint accuracy, condenser type
Touch screen obtains extensive use in multi-media display device.General capacitance touch screen is to combine to answer with liquid crystal display
, capacitance touch screen is fitted in display screen surface, usually can also add one piece of cover board again in capacitance touch screen surfaces in application,
First, protective effect covers the cabling that capacitance touch screen surrounding manifests second is that stamping black ink in cover board surrounding, to ensure
The beauty of entire product.And with consumer's portability requirements higher and higher to electronic product, therefore to the thin of display module
Shape, lightweight requirements are also following.
Currently, a kind of recessiveness cover board touch screen effectively improves this problem, it is to sense traditional cover board and touch screen
Device merges in layer glass, is based on this design, can save one piece of cover board.Its manufacture craft be first on the glass substrate
Black ink is stamped, transparency conducting layer is then plated on ink layer, most followed by according to needing to make electrode figure over transparent conductive layer
Shape.It is that this usual technique is needed by ito glass factory because black ink is imprinted between glass substrate and transparent electrode
Quotient completes, therefore in cost and can not independent control in terms of the friendship phase.
In addition, the manufacture craft of OGS touch screen is also more and more ripe, for example, patent document CN104881168A and
CN104571694A individually discloses " the brush multiple spot OGS touch screen production method of screen printing ", " OGS touch screen and OGS touch screen
Manufacture craft ", above-mentioned published two technical solution be monolithic glass design OGS (One Glass Solution) tie
Structure realizes OGS TP mainly on single-glass by screen printing mode, induction electrode and driving electrodes be
One layer of enterprising walking line of glass, have an intersection to need to avoid cabling, therefore its ITO circuit need to be designed to it is sinuate
Pattern forms the mode of " caterpillar " cabling, big so as to cause the mutual impedance of induction electrode and driving electrodes, therefore IC
Can only drive less than 7 " touch screen, large-sized touch screen cannot be produced；Meanwhile above-mentioned published two technical solution is only
Only it is single-glass structure, is easily broken, environment harsh conditions, such as industrial control equipment and mobile unit life cannot be used in
Environment is produced, to be unfavorable for producing on a large scale.
In addition, two above-mentioned technical solutions are that black ink is printed in ITO conductive layer by the way of silk-screen printing
On, but the various parameters and operation mode of silk-screen printing are not disclosed, if screen printing parameters are adjusted inaccurately
Words may result in the edge of printing is not straight, the circuit on ITO conductive layer cannot be covered, be susceptible to light leakage by black ink etc.
Problem seriously affects the quality of touch screen.
Invention content
In view of the deficiencies of the prior art, the purpose of the present invention is intended to provide a kind of recessive lid simple in structure, easy to make
Plate touch screen.
A kind of another object of the present invention is to provide manufacture crafts simple, low manufacture cost recessive cover board touch screen
Production method.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of recessiveness cover board touch screen, including top glass substrate and lower glass substrate, in top glass substrate and lower glass base
Include successively from top to bottom between plate：
Inductive layer electrode, is formed on the medial surface of top glass substrate；
Black ink layer, by forming black ink silk-screen printing in the surface surrounding of inductive layer electrode；Black
Conductive hole is distributed in color ink layer；
Conductive paste is formed by by conductive paste silk-screen printing in conductive hole；
Conductive silver wire, by forming silver paste silk-screen printing in the surface of black ink layer；One end of conductive silver wire
It is electrically connected by conductive paste and inductive layer electrode and following driving layer electrodes, the other end is electrically connected to external circuit；
Layer electrode is driven, is formed on the medial surface of lower glass substrate；
Optical clear resin glue is adhered between inductive layer electrode and driving layer electrode；
Gap pearl is uniformly distributed in optical clear resin glue；
Frame adhesive is set to the edge of top glass substrate and lower glass substrate, by top glass substrate and lower glass
Substrate forms a seal box.
By disappearing, shadow ink forms, and thickness is 5-7 μm.
A diameter of 8-10 μm of the gap pearl.
It is mixed with conductive gold spacer in the frame adhesive, driving layer electrode is connected to after cure under pressure, after conductive gold spacer and is led
Electric silver wire, then external circuit is connected by conductive silver wire.
The conductive paste is starched for black conductive carbon.
A kind of production method of recessiveness cover board touch screen, includes the following steps：
S1, inductive layer pattern electrode produced by etch process on a piece of transparent conducting glass, as upper glass base
Plate；
S2, on another transparent conducting glass by etch process produce driving layer pattern electrode, as lower glass
Substrate；
S3, the setting regions in the inductive layer electrode side of top glass substrate pass through screen printing mode process black ink
Layer, black ink layer reserve visible area and conductive hole site according to design requirement, and ink layer is dried by 140~160 DEG C of high temperature
Can effectively it adhere on the glass substrate after roasting；
S4, black conductive carbon slurry being stamped in conductive hole site, black conductive carbon slurry is located at the end of inductive layer electrode cabling,
Inductive layer electrode circuit below black ink layer is directed to black ink surface by black conductive carbon slurry；
S5, the conductive silver wire on the surface silk-screen of black ink layer, one end connection black conductive carbon slurry of conductive silver wire, lead to
Black conductive carbon slurry is crossed to connect with inductive layer electrode；The other end connects external circuit；
S6, the edge silk-screen top frame glue for driving layer electrode in lower glass substrate, while on the surface of driving layer electrode
Spray gap pearl；
S7, upper lower glass substrate is aligned to fitting, frame adhesive passes through cure under pressure in 160~180 DEG C of high temperature furnace, will
Upper lower glass substrate is bonded together；
S8, with vacuum impregnation in the gap of upper lower glass substrate injection optics transparent resin adhesive, then pass through ultraviolet light
After irradiation, optical clear resin glue can cure, further the upper lower glass substrate of bonding, while make between keeping between lower glass substrate
Gap.
The black ink is the shadow black ink that disappears, and the thickness of black ink layer is 5-7 μm；The silk screen should brush mode institute
The grenadine used for 460 mesh, 25 μm of line footpath, do the grenadine that net angle is 22.5 degree.
The energy of the ultraviolet light is 3000mj/cm2.
The beneficial effects of the present invention are：
The touch screen of the present invention is Glass-Glass structures, will by the way that black ink is printed on inductive layer electrode surface
Traditional cover board and touch panel sensor merge in layer glass, make top glass substrate while having the function of cover board, simplify
Touch screen structure, and large scale TP (21 " following) may be implemented, and Industry Control and vehicle environment test can be passed through
It is required that.
Description of the drawings
Fig. 1 is the cross-sectional structure schematic diagram of recessive cover board touch screen of the present invention；
Fig. 2 is the dimensional structure diagram of recessive cover board touch screen of the present invention；
Fig. 3 is the part planar structure distribution schematic diagram of recessive cover board touch screen of the present invention；
Fig. 4 is the schematic diagram of black ink；
In figure：1, top glass substrate；2, inductive layer electrode；3, conductive paste；4, black ink layer；5, conductive silver wire；6, side
Frame glue；7, optical clear resin glue；8, gap pearl；9, layer electrode is driven；10, lower glass substrate.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further：
Embodiment 1
As shown in Figs 1-4, recessive cover board touch screen of the invention comprising top glass substrate 1 and lower glass substrate 10,
Include successively from top to bottom between top glass substrate 1 and lower glass substrate：
Inductive layer electrode 2 is specifically to be formed to set after photoetching by full wafer conducting glass substrate (i.e. top glass substrate 1)
The electrode pattern counted and formed, inductive layer electrode 2 is the conductive film of layer of transparent, and main component is tin indium oxide；
Black ink layer 4, by forming black ink silk-screen printing in the surface surrounding of inductive layer electrode 2；
Conductive hole is distributed in black ink layer 4；Wherein, which has fabulous adhesion property, can reliably be adhered to induction
Layer electrode surface is not fallen off；
Conductive paste 3 is formed by by conductive paste silk-screen printing in conductive hole, to connect following conductive silver wires 5；
Conductive silver wire 5, by forming silver paste silk-screen printing in the surface of black ink layer 4；The one of conductive silver wire 5
End is electrically connected by conductive paste 3 and inductive layer electrode 2 and following driving layer electrodes 9, and the other end is electrically connected to external electrical
A kind of road (not shown), wherein mixture that the silver paste is made of particle, adhesive, the solvent of the metallic silver of high-purity
Thick slurry.
Layer electrode 9 is driven, is formed on the medial surface of lower glass substrate 10, is specifically by full wafer conducting glass substrate
(i.e. lower glass substrate 10) forms after photoetching designed electrode pattern and is formed, and driving layer electrode 9 is layer of transparent
Conductive film, main component is tin indium oxide.
Optical clear resin glue 7 is adhered between inductive layer electrode 2 and driving layer electrode 9, wherein the optical clear
Resin glue 7 is injected by way of priming by vacuum in the gap between top glass substrate 1, lower glass substrate 10, then passes through purple
After outer light irradiation, optical clear resin glue 7 can cure, after solidification so that be formed between top glass substrate 1 and lower glass substrate 10
Certain gap contacts to avoid inductive layer electrode 2 and driving layer electrode 9 and is directed at short circuit.
Gap pearl 8 is uniformly distributed in optical clear resin glue 7, so that the gap in optical clear resin glue 7 is equal
It is even, to avoid Newton's ring phenomenon is generated, influence appearance.
Frame adhesive 6 is set to the edge of top glass substrate 1 and lower glass substrate 10, by top glass substrate 1 under
Glass substrate 10 forms a seal box,；It is adhesively fixed top glass substrate 1 and lower glass substrate 10 by frame adhesive 6, protection is internal
Electrode cabling is not contaminated.
It can be seen from the above, the touch screen of the present invention is Glass-Glass structures, by the way that black ink is printed on inductive layer
Traditional cover board and touch panel sensor are merged in layer glass, make top glass substrate 1 while having lid by 2 surface of electrode
The function of plate, simplifies touch screen structure；Simultaneously as the induction electrode and driving electrodes of inventive touch screen are respectively upper
10 upward wiring of glass substrate 1 and lower glass substrate, the cabling mode of traditional " caterpillar " is avoided, impedance is small, so as to reality
The production of existing large scale touch screen (21 " following)；In addition, the touch screen of the present invention and passes through using double-layer glass structure
It is provided with optical clear resin glue 7 between double glazing, there is better impact resistance ability, in industry control or mobile unit more
For ground safety, can be produced on a large scale.
Above-mentioned black ink layer 4 is made of the shadow ink that disappears, and thickness is 5-7 μm.
Meanwhile being found in the primary accidental experiment of inventor, when a diameter of 8-10 μm of gap pearl 8, be conducive to share
Existing LCD at box producing line manufacture craft and material；Meanwhile the too small injection speed that can influence optical clear resin glue in gap
Degree, the time can be elongated, can reduce production efficiency.
It is mixed with conductive gold spacer in above-mentioned frame adhesive 6, after cure under pressure, connection driving layer electrode 9 after conductive gold spacer
With conductive silver wire 5, then pass through conductive silver wire 5 connect external circuit.Since the contact conductor of connection external circuit is designed in upper glass
It on glass substrate 1, and drives the design of layer electrode 9 in lower glass substrate 10, therefore layer electrode 9 can will be driven by conductive gold spacer
It is connected with the conductive silver wire 5 in top glass substrate 1, and then external circuit can be connected.
Wherein, in order to enable the display effect of touch screen more preferably, above-mentioned conductive paste is black conductive carbon slurry, and black leads
Electrical carbon slurry is identical with the color of black ink, and in a pattern so that and user can not tell the difference of the two, to
The display effect of touch screen is not interfered with.
Embodiment 2
A kind of production method of recessiveness cover board touch screen, includes the following steps：
S1, inductive layer pattern electrode produced by etch process on a piece of transparent conducting glass, as upper glass base
Plate；
S2, on another transparent conducting glass by etch process produce driving layer pattern electrode, as lower glass
Substrate；
S3, the setting regions in the inductive layer electrode side of top glass substrate pass through screen printing mode process black ink
Layer, black ink layer reserve visible area and conductive hole site according to design requirement, and ink layer is dried by 140~160 DEG C of high temperature
Can effectively it adhere on the glass substrate after roasting；
S4, black conductive carbon slurry being stamped in conductive hole site, black conductive carbon slurry is located at the end of inductive layer electrode cabling,
Inductive layer electrode circuit below black ink layer is directed to black ink surface by black conductive carbon slurry；
S5, the conductive silver wire on the surface silk-screen of black ink layer, one end connection black conductive carbon slurry of conductive silver wire, lead to
Black conductive carbon slurry is crossed to connect with inductive layer electrode；The other end connects external circuit；
S6, the edge silk-screen top frame glue for driving layer electrode in lower glass substrate, while on the surface of driving layer electrode
Spray gap pearl；
S7, upper lower glass substrate is aligned to fitting, frame adhesive passes through cure under pressure in 160~180 DEG C of high temperature furnace, will
Upper lower glass substrate is bonded together；
S8, with vacuum impregnation in the gap of upper lower glass substrate injection optics transparent resin adhesive, then pass through ultraviolet light
After irradiation, optical clear resin glue can cure, further the upper lower glass substrate of bonding, while make between keeping between lower glass substrate
Gap.
Wherein, in order to solve, the printed edge present in existing screen printing mode is straight, black ink cannot will incude
The technical issues of circuit on layer electrode covers, black ink layer is susceptible to light leakage, above-mentioned black ink are the shadow black that disappears
The thickness of ink, black ink layer is 5-7 μm；The silk screen should grenadine used by brush mode be 460 mesh, 25 μm of line footpath net
Yarn, it is 22.5 degree to do net angle.It is mainly controlled by grenadine due to the print thickness of black ink layer, and black ink layer
Thickness relationship to can by circuit cover, whether be susceptible to leakage problem.Therefore, it the thickness of black ink layer and is adopted
Grenadine is interrelated, most important, that is to say, that makees by setting to above-mentioned each parameter and in the collaboration of each parameter
Under, just it is addressed the problems of above-mentioned.
Wherein, the energy of above-mentioned ultraviolet light is 3000mj/cm2.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make various other
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (2)
1. a kind of recessiveness cover board touch screen, including top glass substrate and lower glass substrate, which is characterized in that in top glass substrate and
Include successively from top to bottom between lower glass substrate：
Inductive layer electrode, is formed on the medial surface of top glass substrate, is specifically to pass through photoetching by full wafer top glass substrate
Designed electrode pattern is formed afterwards and is formed, and inductive layer electrode is the conductive film of layer of transparent；
Black ink layer, by the way that black ink silk-screen printing is formed in the surface surrounding of inductive layer electrode, the black
Ink layer is made of the shadow ink that disappears, and thickness is 5-7 μm, and conductive hole is distributed in black ink layer；
Conductive paste is formed by by the slurry silk-screen printing of black conductive carbon in conductive hole；
Conductive silver wire, by forming silver paste silk-screen printing in the surface of black ink layer；One end of conductive silver wire passes through
Conductive paste and inductive layer electrode and following driving layer electrodes are electrically connected, and the other end is electrically connected to external circuit；
Layer electrode is driven, is formed on the medial surface of lower glass substrate, is specifically that photoetching is passed through by full wafer lower glass substrate
Designed electrode pattern is formed afterwards and is formed, and driving layer electrode is the conductive film of layer of transparent；
Optical clear resin glue is adhered between inductive layer electrode and driving layer electrode；
Gap pearl is uniformly distributed in optical clear resin glue, a diameter of 8-10 μm of the gap pearl;
Frame adhesive is set to the edge of top glass substrate and lower glass substrate, by top glass substrate and lower glass substrate
Form a seal box；Be mixed with conductive gold spacer in the frame adhesive, after cure under pressure, conductive gold spacer connection driving layer electrode and
Conductive silver wire, then external circuit is connected by conductive silver wire.
2. a kind of production method of recessiveness cover board touch screen, which is characterized in that include the following steps：
S1, inductive layer pattern electrode produced by etch process on a piece of transparent conducting glass, as top glass substrate；
S2, on another transparent conducting glass by etch process produce driving layer pattern electrode, as lower glass substrate；
S3, the setting regions in the inductive layer electrode side of top glass substrate pass through screen printing mode process black ink, shape
At black ink layer, the black ink is the shadow black ink that disappears, and the thickness of black ink layer is 5-7 μm, and black ink layer is pressed
Visible area and conductive hole site are reserved according to design requirement, black ink layer can be effective after 140 160 °C of high-temperature bakings
It is attached in top glass substrate；Grenadine used by the screen printing mode, which is 460 mesh, 25 μm of line footpath, does net angle is
22.5 degree of grenadine；
S4, black conductive carbon slurry is stamped in conductive hole site, black conductive carbon slurry, will be black positioned at the end of inductive layer electrode cabling
Inductive layer electrode below color ink layer is directed to black ink layer surface by black conductive carbon slurry；
S5, the conductive silver wire on the surface silk-screen of black ink layer, one end connection black conductive carbon slurry of conductive silver wire, by black
Color conductive carbon paste is connect with inductive layer electrode；The other end connects external circuit；
S6, the edge silk-screen top frame glue for driving layer electrode in lower glass substrate, at the same it is uniform on the surface of driving layer electrode
Spraying gap pearl, a diameter of 8-10 μm of the gap pearl；
S7, upper lower glass substrate is aligned to fitting, frame adhesive passes through cure under pressure in 160 180 °C of high temperature furnace, will be upper and lower
Glass substrate is bonded together；
S8, with vacuum impregnation in the gap of upper lower glass substrate injection optics transparent resin adhesive, then pass through ultraviolet light
Afterwards, optical clear resin glue can cure so that gap pearl is uniformly distributed in optical clear resin glue, and further above and below bonding
Glass substrate, while making to keep gap between lower glass substrate, the energy of the ultraviolet light is 3000mj/cm2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610599119.4A CN106227394B (en) | 2016-07-26 | 2016-07-26 | A kind of recessiveness cover board touch screen and its production method |
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| CN201610599119.4A CN106227394B (en) | 2016-07-26 | 2016-07-26 | A kind of recessiveness cover board touch screen and its production method |
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| CN106227394B true CN106227394B (en) | 2018-09-11 |
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|---|---|---|---|---|
| CN106488659A (en) * | 2016-12-22 | 2017-03-08 | 重庆淳祥电子科技有限公司 | Keyboard circuit printer with resist printing deinstall |
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