Touch sensitive layer
Technical field
The utility model belongs to touch screen technology field, more particularly to a kind of touch sensitive layer.
Background technology
It is widely used with soft electronic is write, Roll-to-Roll production technologies also begin to be taken seriously.It is soft according to definition
Electronics is the technology of a kind of element being built on the soft or flexible substrate of thin plastic sheet or sheet metal and material.And institute
The Roll-to-Roll of meaning is kind of a high-effect, successional mode of production, dedicated for handling the film of flexible property, such
After the material volume of film or soft board from former tubular rolls out, the function of special-purpose is added on film or soft board or in film or soft board
Surface processing, the film after processing or soft board are then rolled into cylindrical shape again or cut.For the table of film or soft board
Face processes, mainly including the write-in of direct pattern, accurate coining (Embossing), fitting (Laminate), plated film (Coating),
Print (Printing), etc. several main process techniques.
When being processed by Roll-to-Roll production technologies to the touch sensitive layer of electronic equipment, because of touch sensible
The required electrically conducting transparent film base material (ITO materials) of layer is excessively thin, therefore injured or bubble phenomenon easily occurs during its fitting,
And the process equipment price of Roll-to-Roll is costly, this all so that the production cost of touch sensitive layer is higher.
In addition, the bridging structure of touch sensing layer usually selects the materials such as copper, molybdenum aluminium molybdenum as bridging in the prior art
Material, cost is higher, and preferable perspectivity relatively difficult to achieve.
Utility model content
Technical problem to be solved in the utility model is:For the prior art fitting during easily occur injured or
Bubble phenomenon, cost are higher and the technical issues of perspectivity is poor, provide a kind of touch sensitive layer.
In order to solve the above technical problems, on the one hand the utility model embodiment provides a kind of touch sensitive layer, including soft
Property transparency conducting layer and the flexible protective film being fitted on the flexible and transparent conductive layer, the flexible and transparent conductive layer bag
Multiple induction lines, multiple driver circuits and bridging structure are included, multiple induction lines are extended in a first direction and mutually put down
Row, multiple driver circuits extend and are mutually parallel in a second direction, and the first direction mutually hangs down with the second direction
Directly, the induction line includes multiple cascade induction electrode blocks, and the driver circuit includes multiple cascade driving electrodes blocks,
The bridging that the bridging structure includes insulating layer and formed by printing transparent photosensitive elargol on the insulating layer, the insulation
Layer is between two adjacent induction electrode blocks, the both ends exposing insulating layer of the bridging, and the two of the bridging
End is electrically connected two adjacent induction electrode blocks.
Optionally, the thickness of the induction line and the driver circuit is 21~24 μm, the flexible protective film
Thickness is 0.185~0.191mm.
Optionally, the adjacent two driving electrodes blocks and adjacent two induction electrode blocks are diagonally positioned,
Connecting portion is equipped between two adjacent driving electrodes blocks, the insulating layer is covered in above the connecting portion, described to take
Bridge is arranged on the insulating layer and is electrically connected the induction electrode block of adjacent two.
Optionally, the flexible protective film is PET film.
According to the touch sensitive layer of the utility model embodiment, it is thin that flexible protective is bonded above flexible and transparent conductive layer
Film so as to play a protective role to flexible and transparent conductive layer, avoids injured flexible and transparent conductive layer.In addition, the utility model is real
The touch sensitive layer for applying example selects transparent photosensitive elargol as bridging material, can effectively reduce the production cost of touch sensitive layer,
Enhance the perspectivity of touch sensitive layer simultaneously.
The utility model embodiment second aspect provides a kind of touch sensitive layer, including flexible and transparent conductive layer and patch
Close flexible protective film on the flexible and transparent conductive layer, the flexible and transparent conductive layer includes multiple induction lines, more
A driver circuit and bridging structure, multiple induction lines are extended in a first direction and are mutually parallel, multiple drives lines
Curb second direction extends and is mutually parallel, and the first direction is mutually perpendicular to the second direction, the induction line bag
Multiple cascade induction electrode blocks are included, the driver circuit includes multiple cascade driving electrodes blocks, and the bridging structure includes
Insulating layer and the bridging formed by printing transparent photosensitive elargol on the insulating layer, the insulating layer are located at adjacent two
Between the driving electrodes block, the insulating layer is exposed at the both ends of the bridging, and the both ends of the bridging are electrically connected adjacent two
A driving electrodes block.
Optionally, the thickness of the induction line and the driver circuit is 21~24 μm, the flexible protective film
Thickness is 0.185~0.191mm.
Optionally, the adjacent two induction electrode blocks and adjacent two driving electrodes blocks are diagonally positioned,
Connecting portion is equipped between two adjacent induction electrode blocks, the insulating layer is covered in above the connecting portion, described to take
Bridge is arranged on the insulating layer and is electrically connected the driving electrodes block of adjacent two.
Optionally, the flexible protective film is PET film.
The utility model embodiment third aspect provides a kind of touch sensitive layer, including flexible and transparent conductive layer and patch
Close flexible protective film on the flexible and transparent conductive layer, the flexible and transparent conductive layer includes multiple induction lines, more
A driver circuit and bridging structure, multiple induction lines are extended in a first direction and are mutually parallel, multiple drives lines
Curb second direction extends and is mutually parallel, and the first direction is mutually perpendicular to the second direction, the induction line bag
Multiple cascade induction electrode blocks are included, the driver circuit includes multiple cascade driving electrodes blocks, and the bridging structure includes
Insulating layer and the bridging formed by printing transparent photosensitive elargol on the insulating layer, the insulating layer are located at adjacent two
Between the induction electrode block between adjacent two driving electrodes blocks, the insulation is exposed at the both ends of the bridging
Layer, the both ends of the bridging between two induction electrode blocks are electrically connected two adjacent induction electrode blocks, two
The both ends of the bridging between the driving electrodes block are electrically connected two adjacent driving electrodes blocks.
Optionally, the thickness of the induction line and the driver circuit is 21~24 μm, the flexible protective film
Thickness is 0.185~0.191mm.
Optionally, the adjacent two driving electrodes blocks and adjacent two induction electrode blocks are diagonally positioned,
Connecting portion is equipped between two adjacent driving electrodes blocks, the insulating layer is covered in above the connecting portion, described to take
Bridge is arranged on the insulating layer and is electrically connected the induction electrode block of adjacent two.
Optionally, the adjacent two induction electrode blocks and adjacent two driving electrodes blocks are diagonally positioned,
Connecting portion is equipped between two adjacent induction electrode blocks, the insulating layer is covered in above the connecting portion, described to take
Bridge is arranged on the insulating layer and is electrically connected the driving electrodes block of adjacent two.
Optionally, the flexible protective film is PET film.
Description of the drawings
Fig. 1 is the schematic diagram for the touch sensitive layer that one embodiment of the utility model provides;
The schematic diagram of flexible and transparent conductive layer in Fig. 1 of Fig. 2;
Fig. 3 is the flow chart of the production method for the touch sensitive layer that one embodiment of the utility model provides;
Fig. 4 is the schematic diagram for the touch-screen that one embodiment of the utility model provides;
Fig. 5 is the flow chart of the production method for the touch module that one embodiment of the utility model provides;
Fig. 6 is the flow chart of the production method for the touch-screen that one embodiment of the utility model provides.
Reference numeral in specification is as follows:
1st, touch sensitive layer;101st, PET film;102nd, flexible and transparent conductive layer;1021st, induction electrode block;1022nd, drive
Electrode block;1023rd, insulating layer;1024th, put up a bridge;
2nd, silver paste;
3rd, polaroid;
4th, the first optical cement;
5th, flexible protective film;
6th, the second optical cement;
7th, the 3rd optical cement;
8th, display module.
Specific embodiment
The technical issues of in order to solve the utility model, technical solution and advantageous effect are more clearly understood, below
With reference to accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
Embodiment one
As depicted in figs. 1 and 2, the touch sensitive layer 1 that one embodiment of the utility model provides, including flexible and transparent conductive layer
102 and the flexible protective film that is fitted on flexible and transparent conductive layer 102, flexible and transparent conductive layer 102 include multiple sensings
Circuit, multiple driver circuits and bridging structure, multiple induction lines are extended in a first direction and are mutually parallel, multiple described
Driver circuit extends and is mutually parallel in a second direction, and the first direction is mutually perpendicular to the second direction, the sensing
Circuit includes multiple cascade induction electrode block (RXITO) 1021, the driver circuit includes multiple cascade driving electrodes blocks
(TXITO) 1022, the bridging structure includes insulating layer 1023 and by printing transparent photosensitive elargol shape on insulating layer 1023
Into bridging 1024, insulating layer 1023 between two adjacent induction electrode blocks 1021, put up a bridge 1024 both ends expose it is exhausted
Edge layer 1023,1024 both ends of putting up a bridge are electrically connected adjacent two induction electrode blocks 1021.
According to the touch sensitive layer of the utility model embodiment, flexible protective is bonded above flexible and transparent conductive layer 102
Film so as to play a protective role to flexible and transparent conductive layer 102, avoids injured flexible and transparent conductive layer 102.In addition, this reality
Transparent photosensitive elargol is selected as the material of bridging 1024 by the use of the touch sensitive layer 1 of new embodiment, can effectively reduce touch sense
The production cost of layer 1 is answered, while enhances the perspectivity of touch sensitive layer 1, while saves cost.
In a preferred embodiment, the flexible protective film is PET film 101, the induction line and the driving
The thickness of circuit is 23 μm, and the thickness of PET film 101 is 0.188mm.That is, induction electrode block 1021 and driving electrodes
The thickness of block 1022 is less than or equal to 23 μm.The present embodiment by using 23 μ m thicks electrically conducting transparent film base material (ITO materials)
With the PET film 101 of 0.188mm thickness, the integral thickness of touch sensitive layer 1 can be effectively reduced.
In one embodiment, two adjacent driving electrodes blocks 1022 and adjacent two induction electrode blocks 1021 are in diagonal
It sets, connecting portion is equipped between adjacent two driving electrodes blocks 1022, insulating layer 1023 is covered in above the connecting portion, takes
Bridge is arranged on insulating layer 1023 and is electrically connected two adjacent induction electrode blocks 1021, leads adjacent induction electrode block 1021
It is logical, and make mutually insulated between induction electrode block 1021 and driving electrodes block 1022.
Wherein, " diagonal to set " refers to:Two adjacent driving electrodes blocks 1022 and adjacent two induction electrode blocks
1021 be in cross-shaped arrangement, and two driving electrodes blocks 1022 are located at diagonal position, and two induction electrode blocks 1021 are located at diagonal
Position.
According to the touch sensitive layer 1 that the utility model embodiment provides, its advantage is:
(1) induction line and driver circuit are made using the electrically conducting transparent film base material (ITO materials) of 23 μ m thicks, effectively dropped
The low integral thickness of touch sensitive layer;
(2) using transparent photosensitive elargol the materials such as elargol of the prior art, copper facing is replaced to put up a bridge, effectively increased
The advantage of appearance, enhances the perspectivity of touch sensitive layer, while saves cost;
(3) flexible protective film is bonded above flexible and transparent conductive layer, so as to play protection to flexible and transparent conductive layer
Effect, avoids injured flexible and transparent conductive layer;
(4) electric current between induction electrode block 1021 and driving electrodes block 1022 can effectively be completely cut off.
In an embodiment of not shown touch sensitive layer, what is different from the first embodiment is that insulating layer is positioned at adjacent
Two driving electrodes blocks between, the both ends of bridging are electrically connected two adjacent driving electrodes blocks.
Specifically, being equipped with connecting portion between two adjacent induction electrode blocks, insulating layer is covered in above the connecting portion,
It puts up a bridge and sets on the insulating layer and be electrically connected two neighboring driving electrodes block, turn on adjacent driving electrodes block, and make sense
Answer mutually insulated between electrode block and driving electrodes block.
In another embodiment of not shown touch sensitive layer, what is different from the first embodiment is that insulating layer is located at phase
Between two adjacent induction electrode blocks between adjacent two driving electrodes blocks, two of bridging between two induction electrode blocks
It holds and is electrically connected two adjacent induction electrode blocks, the both ends of the bridging between two driving electrodes blocks are electrically connected two adjacent drives
Moving electrode block.
Specifically, being equipped with first connecting portion between two adjacent induction electrode blocks, the first insulating layer is covered in the first company
Above socket part, first, which puts up a bridge, is arranged on the first insulating layer and is electrically connected two adjacent induction electrode blocks;Two adjacent drives
Second connecting portion is equipped between moving electrode block, second insulating layer is covered in above second connecting portion, and second, which puts up a bridge, is arranged on second
On insulating layer and it is electrically connected two adjacent driving electrodes blocks.
Embodiment two
As shown in figure 3, one embodiment of the utility model additionally provides a kind of production method of touch sensitive layer, including following
Step:
S101, by electrically conducting transparent film base material by UV type OCA glue laminatings on the glass substrate.
Specifically, the electrically conducting transparent film base material of 23 μ m thicks is fitted on glass substrate with UV type OCA glue.
Wherein, combination of the UV types OCA glue as LOCA and OCA, it possesses the advantages of two kinds of adhesives, also therefore
Improve the shortcomings that respective.Specifically, the advantages of being fully populated with of the existing LOCA of the UV types OCA glue, thoroughly solves OCA
It is bonded the bubble generated and later stage bounce problem.The UV types OCA glue also have OCA can solid-state fitting the advantages of, eliminate
LOCA excessive glue problems, eliminate rubber process.Importantly, UV type OCA glue has acid and alkali-resistance (sulfuric acid, hydrochloric acid, NaOH
1mol/L) and the advantage of high temperature resistant (150 DEG C), the condition in printing each process production is met.After UV (ultraviolet light) irradiations, with
The viscosity reduction on the surface of electrically conducting transparent film base material (ITO materials) fitting, is easy to electrically conducting transparent film base material from glass substrate
It dismantles.
S102 is exposed, develops and etches to electrically conducting transparent film base material, forms multiple cascade induction electrode blocks and more
A cascade driving electrodes block.
Specifically, being exposed development etching to electrically conducting transparent film base material, multiple induction lines and multiple drives lines are formed
Road, the induction line include multiple cascade induction electrode blocks, and the driver circuit includes multiple cascade driving electrodes blocks.
S103, insulating layer is formed between two adjacent induction electrode blocks, passes through side's printing transparent feel on the insulating layer
Light elargol, which is formed, puts up a bridge, and bridging both ends is made to be electrically connected two adjacent induction electrode blocks, obtains being bonded on the glass substrate
Flexible and transparent conductive layer.
Specifically, print the insulation of transparent wire jumper above the connecting portion of adjacent induction electrode block, by infrared light it is pre-baked,
Exposure, development cure, and form insulating layer, then side prints transparent photosensitive elargol on the insulating layer, and transparent photosensitive elargol is exposed
Light and development, which are formed, puts up a bridge, and bridging both ends are electrically connected adjacent two induction electrode blocks, obtains being bonded on the glass substrate soft
Property transparency conducting layer.
S104, by a flexible protective it is film adhered above flexible and transparent conductive layer after carry out ultraviolet light, with release
The viscosity of UV type OCA glue.
S105, the removal UV types OCA glue and glass substrate, obtain by flexible protective film and flexible and transparent conductive layer group
Into touch sensing layer.
That is, after carrying out ultraviolet light, glass substrate, UV type OCA glue and flexible and transparent conductive layer will be released
Between viscosity so that glass substrate is separated with flexible and transparent conductive layer, obtain being led by flexible protective film and flexible and transparent
The touch sensing layer of electric layer composition.
In an embodiment of the production method of not shown touch sensitive layer, unlike embodiment two, step
S103 is:Insulating layer is formed between adjacent driving electrodes block, printing transparent photosensitive elargol by side on the insulating layer forms
It puts up a bridge, and bridging both ends is made to be electrically connected two adjacent driving electrodes blocks, the flexible and transparent for obtaining being bonded on the glass substrate is led
Electric layer.
In another embodiment of the production method of not shown touch sensitive layer, unlike embodiment two, step
Suddenly S103 is:Insulating layer is formed between adjacent induction electrode block and adjacent driving electrodes block, passes through side on the insulating layer
It prints transparent photosensitive elargol and forms bridging, and the both ends of the bridging between two induction electrode blocks is made to be electrically connected two adjacent senses
Answer electrode block, the both ends of the bridging between two driving electrodes blocks are electrically connected two adjacent driving electrodes blocks, are fitted in
Flexible and transparent conductive layer on glass substrate.
According to the production method for the touch sensitive layer that the utility model embodiment provides, its advantage is:
(1) induction line and driver circuit are made using the electrically conducting transparent film base material (ITO materials) of 23 μ m thicks, effectively dropped
The low integral thickness of touch sensitive layer;
(2) using transparent photosensitive elargol the materials such as elargol of the prior art, copper facing is replaced to put up a bridge, effectively increased
The advantage of appearance, enhances the perspectivity of touch sensitive layer, while saves cost;
(3) do carrier using glass baseplate to be processed ultra-thin materials, work is processed compared with Roll to Roll are used
Skill has saved expensive equipment cost;
(4) flexible protective film is bonded above flexible and transparent conductive layer, so as to play protection to flexible and transparent conductive layer
Effect, avoids injured flexible and transparent conductive layer;
(5) electrically conducting transparent film base material and glass substrate are bonded using UV type OCA glue, and pass through ultraviolet light to make
The two separates, and effectively avoids the generation of injured or bubble phenomenon.
Embodiment three
As shown in figure 4, the utility model embodiment third aspect provides a kind of touch module, including polaroid 3, soft
The touch sensing layer 1 provided in property circuit board (not shown) and embodiment one, touch sensing layer 1 are formed with flexible and transparent conductive
One face edge of layer is printed with silver paste 2, and touch sensing layer 1 is formed between the one side of silver paste 2 and polaroid 3 through the first optics
Glue 4 is bonded, and the flexible and transparent conductive layer is electrically connected by silver paste 2 and flexible PCB.It should be understood that by polarisation
It is bonded between piece 3, silver paste 2 and touch sensing layer 1 and touch sensing layer 1 and flexible PCB is electrically connected, make it
Touch module of the composition with the whole advantageous effects of touch sensing layer in embodiment one 1.
Example IV
As shown in figure 5, one embodiment of the utility model provides a kind of production method of touch module, including following step
Suddenly:
S10, touch sensing layer is made.
In the present embodiment, the touch sensing layer according to provided in embodiment two making touch sensing layer method into
Row makes.
S20, the face edge printing silver paste that flexible and transparent conductive layer is formed in the touch sensing layer, then touched described
The surface progress insulation print that sensing layer is formed with silver paste is touched, semi-finished product are made.
Specifically, after touch sensing layer is formed with the face edge printing silver paste of flexible and transparent conductive layer, first pass through red
Outer light is pre-baked, exposes, develop, solid baking is formed with the silver into elementary semi-finished products, then in touch sensing layer (elementary semi-finished products)
The one side of slurry carries out insulation print and semi-finished product is made.
S30, the first optical cement is coated on the surface of insulation print, then polaroid is fitted on first optical cement;
S40, flexible PCB and the flexible and transparent conductive layer are electrically connected by silver paste, obtain touch module.
Embodiment five
As shown in figure 4, one embodiment of the utility model provides a kind of touch-screen, including flexible protective film 5, the second light
The touch module provided in glue 6, the 3rd optical cement 7, display module 8 and embodiment three is learned, the touch module is formed with partially
The one side of mating plate is bonded by the second optical cement 6 with flexible protective film 5, and touch module is formed with the one side of PET film by
Three optical cements 7 and display module 8 are fitted between flexible protective film and display module.
In one embodiment, display module 8 is AMOLED screens.AMOLED (active matrix organic light-emitting diode,
Active-matrix organic light emitting diode) basis be organic matter illuminator, will be thousands of
Can only send the light source of red, green or blueness by it is a kind of it is specific in the form of be placed on the substrate of screen, be applied in voltage
When, these illuminators can send the light of red, green or blueness, and each of user's needs is sent by adjusting trichromatic ratio
The light of kind color.AMOLED screens have broader visual angle, higher refresh rate and thinner size made of AMOLED.
Embodiment six
One embodiment of the utility model additionally provides a kind of production method of touch-screen, comprises the following steps:
S1, the production method provided by above-mentioned fourth aspect make touch module.
In the present embodiment, the touch module according to the making touch module provided in example IV method system
Make.
S2, the one side for being formed with polaroid in the touch module pass through the second optics glue bond flexible cover sheet.
S3, the one side for being formed with PET film in the touch module are touched by the 3rd optics glue bond display module
Touch screen.
Touch sensitive layer, touch module, touch-screen according to the utility model embodiment offer and preparation method thereof, have
Beneficial effect is:
(1) induction line and driver circuit are made using the electrically conducting transparent film base material (ITO materials) of 23 μ m thicks, effectively dropped
The low integral thickness of touch-screen;
(2) using transparent photosensitive elargol the materials such as elargol of the prior art, copper facing is replaced to put up a bridge, effectively increased
The advantage of appearance, enhances the perspectivity of touch sensitive layer 1, while saves cost;
(3) do carrier using glass baseplate to be processed ultra-thin materials, work is processed compared with Roll to Roll are used
Skill has saved expensive equipment cost;
(4) PET film 101 is bonded above flexible and transparent conductive layer 102, so as to be played to flexible and transparent conductive layer 102
Protective effect avoids injured flexible and transparent conductive layer 102;
(5) electrically conducting transparent film base material and glass substrate are bonded using UV type OCA glue, and pass through ultraviolet light to make
The two separates, and effectively avoids the generation of injured or bubble phenomenon.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in the guarantor of the utility model
Within the scope of shield.