CN106249975A - A kind of manufacture method of touch screen, display device and touch screen - Google Patents
A kind of manufacture method of touch screen, display device and touch screen Download PDFInfo
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- CN106249975A CN106249975A CN201610666152.4A CN201610666152A CN106249975A CN 106249975 A CN106249975 A CN 106249975A CN 201610666152 A CN201610666152 A CN 201610666152A CN 106249975 A CN106249975 A CN 106249975A
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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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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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
- G06F3/0412—Digitisers structurally integrated in a display
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- 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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- Crystallography & Structural Chemistry (AREA)
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Abstract
The embodiment of the invention discloses the manufacture method of a kind of touch screen, display device and touch screen.This touch screen includes: underlay substrate, a plurality of the first touch control electrode extended in the row direction on described underlay substrate and the second touch control electrode extended along column direction, and the dielectric layer between described first touch control electrode and described second touch control electrode；Described dielectric layer at the thickness of described first touch control electrode and described second touch control electrode overlapping region more than the thickness in other region.In the program, in the dielectric layer between two-layer touch control electrode, the thickness in the region that two-layer touch control electrode overlaps is bigger than the thickness in other region, such as edge, accordingly, produced electric capacity is just little than the electric capacity of edge, it is reduced by the impact on touch-control effect, improves touch-control sensitivity.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to the manufacture method of a kind of touch screen, display device and touch screen.
Background technology
In current touch screen, touch-control sensitivity is very important performance indications, affects the factor of touch-control sensitivity also
Have a lot, such as, in existing a kind of touch screen, make two-layer touch control electrode, between two-layer touch control electrode, have one layer of medium
Layer, all has an impact touch-control effect at the electric capacity at the two-layer touch control electrode place of overlapping and the electric capacity of edge, especially two-layer touch-control
Electric capacity at electrode crossover is relatively big, can reduce touch-control sensitivity；Wherein, claim outside touch control electrode and another touch control electrode overlap place
For edge；The most such as, touch control electrode distance finger farther out, also can reduce the touch-control sensitivity of touch screen.
Summary of the invention
The purpose of the embodiment of the present invention is to provide the manufacture method of a kind of touch screen, display device and touch screen, is used for solving
The problem that certainly the touch-control sensitivity of touch screen of the prior art is poor.
The purpose of the embodiment of the present invention is achieved through the following technical solutions:
A kind of touch screen, including underlay substrate, a plurality of the first touch-control extended in the row direction on described underlay substrate
Electrode and the second touch control electrode extended along column direction, and between described first touch control electrode and described second touch control electrode
Dielectric layer；
Described dielectric layer is more than other at the thickness of described first touch control electrode with described second touch control electrode overlapping region
The thickness in region.
It is preferred that a surface in two surfaces up and down of described dielectric layer is smooth, another surface have multiple outside
Bulge-structure；Or, two surfaces up and down of described dielectric layer are respectively provided with outside multiple outer lug structure and upper and lower two surfaces
Bulge-structure one_to_one corresponding；
The overlapping region of described first touch control electrode and described second touch control electrode is positioned at the outer lug knot of described dielectric layer
The region at structure place.
It is preferred that the outer lug structure of the upper surface of described dielectric layer and/or lower surface is positioned at non-pixel region.
It is preferred that the outer lug structure of the upper surface of described dielectric layer and/or lower surface is positioned at pixel region；Described first
Touch control electrode and described second touch control electrode are transparency electrode.
It is preferred that described touch screen is OLED or LCD display panel.
It is preferred that described first touch control electrode, the second touch control electrode and described dielectric layer are positioned at inside display floater.
It is preferred that also include for limiting multiple groove arranged in arrays pixel defining layer as pixel region,
And it is positioned at the organic electro luminescent layer in described pixel defining layer；When the lower surface of described dielectric layer has outer lug structure,
The outer lug structure of the lower surface of described dielectric layer is positioned at pixel region, and the outer lug structure of the lower surface of described dielectric layer
Groove one_to_one corresponding with described pixel defining layer.
It is preferred that also include encapsulated layer；
Described first touch control electrode, the second touch control electrode and described dielectric layer are positioned at described encapsulated layer inside or are positioned at institute
State on encapsulated layer.
It is preferred that described encapsulated layer includes the first water blocking layer of stacking, flatness layer and the second water blocking layer；
When described first touch control electrode, the second touch control electrode and described dielectric layer are positioned at described encapsulated layer inside, given an account of
Matter layer is described flatness layer.
It is preferred that described underlay substrate is flexible base board.
A kind of manufacture method of touch screen, the method includes:
Underlay substrate is formed the step of a plurality of the first touch control electrode extended in the row direction；At described first touch-control electricity
The extremely upper step forming dielectric layer；The step of a plurality of the second touch control electrode extended along column direction of shape on described dielectric layer；Its
In, described dielectric layer is more than other region at the thickness of described first touch control electrode with described second touch control electrode overlapping region
Thickness.
It is preferred that the method also includes:
Described underlay substrate is formed for limiting multiple groove arranged in arrays pixel as pixel region
Definition layer；
Described pixel defining layer is formed and has reeded organic electro luminescent layer；Described organic electro luminescent layer recessed
Groove and the groove one_to_one corresponding of described pixel defining layer；
Described organic electro luminescent layer is formed and has reeded water blocking layer；The groove of described water blocking layer is organic with described
The groove one_to_one corresponding of electroluminescence layer；
Underlay substrate is formed the step of a plurality of the first touch control electrode extended in the row direction, including:
Described water blocking layer is formed reeded described first touch control electrode of a plurality of tool；Described first touch control electrode recessed
Groove and the groove one_to_one corresponding of described organic electro luminescent layer；
Described first touch control electrode is formed the step of dielectric layer, including:
Described first touch control electrode is formed lower surface there is the dielectric layer of outer lug structure；The evagination of described dielectric layer
Play the groove one_to_one corresponding of structure and described pixel defining layer.
It is preferred that form the step of dielectric layer in described first touch control electrode, including:
The underlay substrate being formed with described first touch control electrode is formed a flood dielectric film；
Utilize patterning processes, described first touch control electrode and described second touch control electrode overlapping region shape on dielectric film
Become outer lug structure, to form described dielectric layer.
Having the beneficial effect that of the embodiment of the present invention:
In a kind of touch screen of embodiment of the present invention offer and the manufacture method of touch screen, between two-layer touch control electrode
In dielectric layer, the thickness in the region that two-layer touch control electrode overlaps is bigger, such as edge, accordingly, institute than the thickness in other region
The electric capacity produced is just little than the electric capacity of edge, has been reduced by the impact on touch-control effect, has improve touch-control sensitivity.
A kind of touch screen, the organic electro luminescent layer including underlay substrate, arranged on underlay substrate and cladding are described
The encapsulated layer of organic electro luminescent layer；
Described encapsulated layer include the first touch control electrode, the second touch control electrode, the first touch control electrode and the second touch-control electricity
Dielectric layer between pole.
It is preferred that described encapsulated layer also includes the first resistance being positioned at described first touch control electrode away from described dielectric layer side
Water layer, it is positioned at described second touch control electrode the second water blocking layer away from described dielectric layer side；
Described dielectric layer is flatness layer.
It is preferred that described underlay substrate is flexible base board.
Having the beneficial effect that of the embodiment of the present invention:
In a kind of touch screen that the embodiment of the present invention provides, touch control electrode is positioned at inside encapsulated layer, can reduce touch-control electricity
Pole and the distance of finger, thus improve touch-control sensitivity, and, so, encapsulated layer not only has the function of encapsulation and also has
Touch controllable function.
A kind of display device, including the touch screen as described in any of the above item.
Accompanying drawing explanation
One of structure of a kind of touch screen that Fig. 1 a provides for the embodiment of the present invention；
The two of the structure of a kind of touch screen that Fig. 1 b provides for the embodiment of the present invention；
The three of the structure of a kind of touch screen that Fig. 1 c provides for the embodiment of the present invention；
The four of the structure of a kind of touch screen that Fig. 2 provides for the embodiment of the present invention；
The five of the structure of a kind of touch screen that Fig. 3 provides for the embodiment of the present invention；
The six of the structure of a kind of touch screen that Fig. 4 provides for the embodiment of the present invention；
The seven of the structure of a kind of touch screen that Fig. 5 provides for the embodiment of the present invention；
The eight of the structure of a kind of touch screen that Fig. 6 provides for the embodiment of the present invention.
Detailed description of the invention
In order to improve touch-control sensitivity, the embodiment of the present invention provides a kind of touch screen, including underlay substrate, at underlay substrate
On a plurality of the first touch control electrode extended in the row direction and the second touch control electrode of extending along column direction, and at the first touch-control
Dielectric layer between electrode and the second touch control electrode；Dielectric layer is in the thickness of the first touch control electrode Yu the second touch control electrode overlapping region
Degree is more than the thickness in other region.
In the embodiment of the present invention, in the dielectric layer between two-layer touch control electrode, in the region that two-layer touch control electrode is overlapping
Thickness bigger than the thickness in other region, such as edge, accordingly, produced electric capacity is just little than the electric capacity of edge, just subtracts
The little impact on touch-control effect, improves touch-control sensitivity.
Wherein, the concrete structure of dielectric layer has multiple, the most several can realize dielectric layer is set forth below at the first touch-control
The thickness of electrode and the second touch control electrode overlapping region is more than the structure of the thickness in other region: it is preferred that dielectric layer is upper and lower
A surface in two surfaces is smooth, and another surface has multiple outer lug structure；Or, two tables up and down of dielectric layer
Face is respectively provided with the outer lug structure one_to_one corresponding on multiple outer lug structure and upper and lower two surfaces.Accordingly, the first touch control electrode
The region at the outer lug structure place of dielectric layer it is positioned at the overlapping region of the second touch control electrode.
The scheme provided the present invention with embodiment below in conjunction with the accompanying drawings illustrates in greater detail.
See Fig. 1 a～Fig. 1 c: touch screen includes that underlay substrate 001, a plurality of on underlay substrate 001 prolong in the row direction
The first touch control electrode 002 stretched and the second touch control electrode 003 extended along column direction, and touch in the first touch control electrode and second
Dielectric layer 004 between control electrode.
In Fig. 1 a, the upper surface of dielectric layer 004 is smooth, and lower surface has an outer lug structure 041, the first touch control electrode and the
The overlapping region 005 of two touch control electrode is positioned at the region at outer lug structure 041 place of dielectric layer；The evagination of lower surface therein
Play structure just for making dielectric layer be more than other district at the thickness of the first touch control electrode with the second touch control electrode overlapping region 005
The thickness in territory.
In Fig. 1 b, the lower surface of dielectric layer 004 is smooth, and upper surface has an outer lug structure 041, the first touch control electrode and the
The overlapping region 005 of two touch control electrode is positioned at the region at outer lug structure 041 place of dielectric layer；The evagination of upper surface therein
Play structure just for making dielectric layer be more than other district at the thickness of the first touch control electrode with the second touch control electrode overlapping region 005
The thickness in territory.
In Fig. 1 c, two surfaces up and down of dielectric layer 004 are respectively provided with multiple outer lug structure 041 and upper and lower two surfaces
Outer lug structure 041 one_to_one corresponding；The overlapping region 005 of the first touch control electrode and the second touch control electrode is positioned at the evagination of dielectric layer
Play the region at structure 041 place；The outer lug structure of upper and lower surface therein is provided commonly for so that dielectric layer is at the first touch-control electricity
The thickness of pole and the second touch control electrode overlapping region 005 is more than the thickness in other region.
More than it is merely illustrative of several possible structure of dielectric layer, it is also possible to be arranged to other structure, herein
Will not enumerate.
In a kind of possible embodiment, the upper surface of dielectric layer and/or the outer lug structure of lower surface are positioned at non-pixel
Region.So, the first touch control electrode becomes transparency electrode or non-transparent electrode with the second touch control electrode, can be according to reality
Technique selects.Such as, the top view shown in Fig. 2, the first touch control electrode 002 above the second touch control electrode 003, solid box
Show that pixel region 006, dotted line frame show that the region at dielectric layer 004 place, the upper surface of dielectric layer 004 have outer lug
Structure, this outer lug structure is positioned at non-pixel region, can be reflected by the bending position of the first touch control electrode 002 in figure,
In Fig. 2, the overlapping region of the first touch control electrode 002 and the second touch control electrode 003 is in non-pixel region.
In alternatively possible embodiment, the upper surface of dielectric layer and/or the outer lug structure of lower surface are positioned at pixel
Region；Accordingly, the first touch control electrode and the second touch control electrode are transparency electrode.In this manner it is ensured that the opening of pixel region
Rate.The such as top view shown in Fig. 3, the first touch control electrode 002 below the second touch control electrode 003, the following table mask of dielectric layer
Having outer lug structure, this outer lug structure is positioned at pixel region 006, can be by the bending position of the first touch control electrode 002 in figure
Reflecting, in Fig. 3, the overlapping region of the first touch control electrode 002 and the second touch control electrode 003 is at pixel region.Due to first
The thickness of the overlapping region of touch control electrode 002 and the second touch control electrode 003, more than the thickness in other region, is known according to electric capacity is relevant
Knowing and understand, the electric capacity C1 of overlapping region is less than the electric capacity C2 of edge, thus is beneficial to improve sensitivity.
It should be noted that the scheme of the embodiment of the present invention is applicable to mutual capacitance type touch screen.It is preferred that touch screen can but
It is not limited to Organic Light Emitting Diode (Organic Light-emitting Diode, OLED) or liquid crystal display (Thin
Film Transistor LCD, LCD) display floater.When being embodied as, it is preferred that the first touch control electrode, the second touch control electrode
It is positioned at inside display floater with dielectric layer.
If touch screen is OLED display panel, it is preferred that touch screen also includes for limiting multiple arranged in arrays
Groove as the pixel defining layer of pixel region, and the organic electro luminescent layer being positioned in pixel defining layer；Dielectric layer
When lower surface has outer lug structure, the outer lug structure of the lower surface of dielectric layer is positioned under pixel region, and dielectric layer
The outer lug structure on surface and the groove one_to_one corresponding of pixel defining layer.In the present embodiment, due to fluted in pixel defining layer,
In manufacturing process, when making the outer lug structure of lower surface of dielectric layer, it is possible to utilize the groove of pixel defining layer, take advantage of a situation
Form the outer lug structure of dielectric layer, so, utilize the outer lug structure of the morphogenesis dielectric layer of existing structure, it is not necessary to increase
Extra technique, technique is simpler, is also beneficial to improve production efficiency.
When being embodied as, the position that arranges of the first touch control electrode, the second touch control electrode and dielectric layer has multiple, it is preferred that
Touch screen also includes encapsulated layer；First touch control electrode, the second touch control electrode and dielectric layer are positioned at encapsulated layer inside or are positioned at envelope
On dress layer.When encapsulated layer is internal, encapsulated layer not only has the function of encapsulation and also has the function of touch-control.
When being embodied as, encapsulated layer includes the first water blocking layer of stacking, flatness layer and the second water blocking layer；First touch-control electricity
When pole, the second touch control electrode and dielectric layer are positioned at encapsulated layer inside, dielectric layer is flatness layer.In the present embodiment, utilize encapsulated layer
Internal existing flatness layer, as dielectric layer, simplifies structure, it is also possible to reduce the thickness of product.
In the embodiment of the present invention, underlay substrate can be, but not limited to as flexible base board.
It should be noted that the first touch control electrode and the second touch control electrode in the embodiment of the present invention can be not only used for reality
Existing touch-control, it is also possible to be used for realizing fingerprint recognition.Owing to fingerprint recognition is higher to required precision, in the specific implementation, touch screen
Touch area and fingerprint recognition region can be included, the first touch control electrode arranged in fingerprint recognition region and the second touch control electrode
Density higher than touch area arrange the first touch control electrode and the density of the second touch control electrode.Or, when being embodied as, no
Distinguish touch area and fingerprint recognition region, but when realizing fingerprint recognition, all of first touch control electrode and the second touch-control
Electrode is used to fingerprint recognition；When realizing touch-control, the first touch control electrode of a part and the second touch control electrode is utilized to be used for touching
Control.In enforcement, select one of which as required.
Below with the structure of two concrete touch screens, the touch screen providing the embodiment of the present invention is carried out in further detail
Explanation.
Flexible OLED touch screen as shown in Figure 4, including: underlay substrate 001, the pixel that underlay substrate sets gradually is fixed
Justice layer 007, organic electro luminescent layer 008, encapsulated layer 009, polaroid 0010, cover plate 0011 and to be positioned at encapsulated layer 009 internal
The first touch control electrode the 002, second touch control electrode 003 and dielectric layer 004.
Wherein, underlay substrate is flexible base board, including substrate film 011, polyimides (Polyimide, PI) thin film 012
With array base palte 013.
Wherein, the groove that pixel defining layer 007 has, the region that this groove limits is as pixel region；Organic electroluminescence is sent out
Photosphere 008 has groove, is the morphogenesis utilizing pixel defining layer, and the groove of organic electro luminescent layer and pixel definition
The groove one_to_one corresponding of layer.
Wherein, encapsulated layer 009 includes the first water blocking layer 091, flatness layer 092 and the second water blocking layer 093.Wherein first block water
Layer 091 is positioned in organic electro luminescent layer 008 and has groove, is the morphogenesis utilizing organic electro luminescent layer, and first
The groove of water blocking layer and the groove one_to_one corresponding of pixel defining layer.
Wherein, the first touch control electrode 002 is positioned on the first water blocking layer 091, and the first touch control electrode has groove, is to utilize
The morphogenesis of the first water blocking layer, the groove of the first touch control electrode and the groove one_to_one corresponding of pixel defining layer.Second touch-control
Electrode 003 is positioned on dielectric layer 004.
Wherein, dielectric layer 004 is same layer with the flatness layer 092 of encapsulated layer, and the lower surface of dielectric layer has outer lug knot
Structure, the outer lug structure of this dielectric layer is to utilize the morphogenesis of the first water blocking layer, the outer lug of the lower surface of this dielectric layer
Structure is positioned at pixel region, and the groove one_to_one corresponding of the outer lug structure of the lower surface of dielectric layer and pixel defining layer.It is situated between
The outer lug structure of the lower surface of matter layer is so that dielectric layer is at the first touch control electrode and the second touch control electrode overlapping region
Thickness is more than the thickness in other region.
In Fig. 4, the first touch control electrode and the second touch control electrode overlapping region are positioned at pixel region, i.e. pixel defining layer 007
Groove 071 limit region in, the first touch control electrode and the second touch control electrode are transparency electrode.
In the present embodiment, the touch-control sensitivity of flexible OLED touch screen substantially increases.And encapsulated layer not only has encapsulation
Function also has touch controllable function, also simplify product structure, reduces product thickness, it addition, the first touch-control in the present embodiment
Electrode and the second touch control electrode can be not only used for realizing touch-control, are additionally operable to carry out fingerprint recognition.
Based on the flexible OLED touch screen shown in Fig. 4, if the first touch control electrode, the second touch control electrode and dielectric layer are positioned at
On encapsulated layer, then, accordingly, as it is shown in figure 5, the second touch control electrode 003 is positioned on the second water blocking layer 093, dielectric layer 004
Lower surface is smooth, and upper surface has outer lug structure；First touch control electrode 002 is positioned on dielectric layer 004.Dielectric layer 004 upper
The outer lug structure on surface is so that dielectric layer is more than at the thickness of the first touch control electrode with the second touch control electrode overlapping region
The thickness in other region.
In Fig. 5, the first touch control electrode and the second touch control electrode overlapping region are positioned at non-pixel region, the first touch control electrode and
Second touch control electrode can be non-transparent electrode.
Based on same inventive concept, the embodiment of the present invention also provides for the manufacture method of a kind of touch screen, and the method is at least
Comprise the steps:
Underlay substrate is formed the step of a plurality of the first touch control electrode extended in the row direction；In the first touch control electrode
Form the step of dielectric layer；The step of a plurality of the second touch control electrode extended along column direction of shape on dielectric layer；Wherein, dielectric layer
Thickness in the first touch control electrode with the second touch control electrode overlapping region is more than the thickness in other region.
In the embodiment of the present invention, in the dielectric layer between two-layer touch control electrode, in the region that two-layer touch control electrode is overlapping
Thickness bigger than the thickness in other region, such as edge, accordingly, produced electric capacity is just little than the electric capacity of edge, just subtracts
The little impact on touch-control effect, improves touch-control sensitivity.
Wherein, the structure of dielectric layer is different, and the manufacture method of corresponding dielectric layer is the most different.
In a kind of possible embodiment, it is preferred that the method that the embodiment of the present invention provides also includes:
Underlay substrate is formed for limiting multiple groove arranged in arrays pixel definition as pixel region
Layer；
Pixel defining layer is formed and has reeded organic electro luminescent layer；The groove of organic electro luminescent layer and pixel
The groove one_to_one corresponding of definition layer；
Organic electro luminescent layer is formed and has reeded water blocking layer；The groove of water blocking layer and the groove of pixel defining layer
One_to_one corresponding；
Accordingly, underlay substrate forms the step of a plurality of the first touch control electrode extended in the row direction, including:
Water blocking layer is formed reeded first touch control electrode of a plurality of tool；The groove of the first touch control electrode and pixel definition
The groove one_to_one corresponding of layer；
Accordingly, the first touch control electrode forms the step of dielectric layer, including:
First touch control electrode is formed lower surface there is the dielectric layer of outer lug structure；The outer lug structure of dielectric layer with
The groove one_to_one corresponding of pixel defining layer.
In the present embodiment, when making the outer lug structure of lower surface of dielectric layer, utilize the groove of pixel defining layer, take advantage of a situation
Form the outer lug structure of dielectric layer, so, utilize the outer lug structure of the morphogenesis dielectric layer of existing structure, it is not necessary to increase
Extra technique, technique is simpler, is also beneficial to improve production efficiency
Wherein, the making of the first water blocking layer can use chemical gaseous phase deposition (Chemical Vapor Deposition,
PECVD) technique.
Wherein, the first touch control electrode and the second touch control electrode are tin indium oxide (Indium Tin Oxide, ITO) transparent electrical
Pole, can use InkJet printing processes to make.
Wherein, the making of flatness layer can use CVD or ald (Atomic Layer Deposition, ALD)
Technique.
In alternatively possible embodiment, it is preferred that form the step of dielectric layer in the first touch control electrode, including:
The underlay substrate being formed with the first touch control electrode is formed a flood dielectric film；
Utilizing patterning processes, on dielectric film, the first touch control electrode forms outer lug with the second touch control electrode overlapping region
Structure, to form dielectric layer.
In the present embodiment, the upper surface of the dielectric layer of making has outer lug structure.With the first possible enforcement above-mentioned
Production method in example is different, is not the pattern utilizing existing structure, but individually produces the outer lug structure of dielectric layer,
Such mode, is also advantageous that in implementing the solution of the present invention flexibly.
The embodiment of the present invention also provides for a kind of touch screen, as shown in Figure 6, including underlay substrate 1, sets on underlay substrate 1
The organic electro luminescent layer 2 put and the encapsulated layer 3 being coated with organic electroluminescent layer 2；
Encapsulated layer 3 includes first touch control electrode the 4, second touch control electrode 5, at the first touch control electrode 4 and the second touch-control electricity
Dielectric layer 6 between pole 5.
In the embodiment of the present invention, touch control electrode is positioned at inside encapsulated layer, can reduce the distance of touch control electrode and finger, from
And improve touch-control sensitivity, and, so, encapsulated layer not only has the function of encapsulation and also has touch controllable function.
It is preferred that encapsulated layer 3 also includes being positioned at the first touch control electrode 4 away from the first water blocking layer 7 of dielectric layer 6 side, position
In the second touch control electrode 5 away from the second water blocking layer 8 of dielectric layer 6 side；Dielectric layer 6 is flatness layer.In the present embodiment, utilize envelope
Flatness layer in dress layer, as dielectric layer, can simplify the structure of touch screen, and encapsulated layer thinning can improve further tactile
Control sensitivity.
Touch screen in Fig. 6 also includes the polaroid 9 being positioned at above encapsulated layer 3, is positioned at the cover plate 10 above polaroid 9.
It is preferred that in the embodiment of the present invention, underlay substrate can be, but not limited to as flexible base board.
Based on same design, the embodiment of the present invention also provides for a kind of display device, including such as any of the above embodiment institute
The touch screen stated.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (17)
1. a touch screen, the first touch-control electricity extended in the row direction including underlay substrate, a plurality of on described underlay substrate
Pole and the second touch control electrode extended along column direction, and between described first touch control electrode and described second touch control electrode
Dielectric layer；It is characterized in that:
Described dielectric layer is more than other region at the thickness of described first touch control electrode with described second touch control electrode overlapping region
Thickness.
Touch screen the most according to claim 1 a, it is characterised in that table in two surfaces up and down of described dielectric layer
Face is smooth, and another surface has multiple outer lug structure；Or, two surfaces up and down of described dielectric layer be respectively provided with multiple outside
The outer lug structure one_to_one corresponding on bulge-structure and upper and lower two surfaces；
The overlapping region of described first touch control electrode and described second touch control electrode is positioned at the outer lug structure institute of described dielectric layer
Region.
Touch screen the most according to claim 2, it is characterised in that outside the upper surface of described dielectric layer and/or lower surface
Bulge-structure is positioned at non-pixel region.
Touch screen the most according to claim 2, it is characterised in that outside the upper surface of described dielectric layer and/or lower surface
Bulge-structure is positioned at pixel region；Described first touch control electrode and described second touch control electrode are transparency electrode.
5. according to the touch screen described in any one of Claims 1 to 4, it is characterised in that described touch screen is that OLED or LCD shows
Panel.
Touch screen the most according to claim 5, it is characterised in that described first touch control electrode, the second touch control electrode and institute
State dielectric layer to be positioned at inside display floater.
Touch screen the most according to claim 6, it is characterised in that also include for limiting multiple arranged in arrays recessed
Groove is as the pixel defining layer of pixel region, and is positioned at the organic electro luminescent layer in described pixel defining layer；Described medium
When the lower surface of layer has outer lug structure, the outer lug structure of the lower surface of described dielectric layer is positioned at pixel region, and institute
State the outer lug structure of the lower surface of dielectric layer and the groove one_to_one corresponding of described pixel defining layer.
Touch screen the most according to claim 7, it is characterised in that also include encapsulated layer；
Described first touch control electrode, the second touch control electrode and described dielectric layer are positioned at described encapsulated layer inside or are positioned at described envelope
On dress layer.
Touch screen the most according to claim 8, it is characterised in that described encapsulated layer includes the first water blocking layer of stacking, puts down
Smooth layer and the second water blocking layer；
When described first touch control electrode, the second touch control electrode and described dielectric layer are positioned at described encapsulated layer inside, described dielectric layer
For described flatness layer.
Touch screen the most according to claim 9, it is characterised in that described underlay substrate is flexible base board.
The manufacture method of 11. 1 kinds of touch screens, it is characterised in that the method includes:
Underlay substrate is formed the step of a plurality of the first touch control electrode extended in the row direction；In described first touch control electrode
Form the step of dielectric layer；The step of a plurality of the second touch control electrode extended along column direction of shape on described dielectric layer；Wherein, institute
State the dielectric layer thickness at described first touch control electrode and described second touch control electrode overlapping region more than the thickness in other region.
12. manufacture methods according to claim 11, it is characterised in that the method also includes:
Described underlay substrate is formed for limiting multiple groove arranged in arrays pixel definition as pixel region
Layer；
Described pixel defining layer is formed and has reeded organic electro luminescent layer；The groove of described organic electro luminescent layer with
The groove one_to_one corresponding of described pixel defining layer；
Described organic electro luminescent layer is formed and has reeded water blocking layer；The groove of described water blocking layer and described organic electroluminescence
The groove one_to_one corresponding of luminescent layer；
Underlay substrate is formed the step of a plurality of the first touch control electrode extended in the row direction, including:
Described water blocking layer is formed reeded described first touch control electrode of a plurality of tool；The groove of described first touch control electrode with
The groove one_to_one corresponding of described organic electro luminescent layer；
Described first touch control electrode is formed the step of dielectric layer, including:
Described first touch control electrode is formed lower surface there is the dielectric layer of outer lug structure；The outer lug knot of described dielectric layer
Structure and the groove one_to_one corresponding of described pixel defining layer.
13. manufacture methods according to claim 11, it is characterised in that form dielectric layer in described first touch control electrode
Step, including:
The underlay substrate being formed with described first touch control electrode is formed a flood dielectric film；
Utilize patterning processes, outside described first touch control electrode and described second touch control electrode overlapping region are formed on dielectric film
Bulge-structure, to form described dielectric layer.
14. 1 kinds of touch screens, the organic electro luminescent layer including underlay substrate, arranged on underlay substrate and cladding are described
The encapsulated layer of organic electro luminescent layer；It is characterized in that:
Described encapsulated layer include the first touch control electrode, the second touch control electrode, the first touch control electrode and the second touch control electrode it
Between dielectric layer.
15. touch screens according to claim 14, it is characterised in that described encapsulated layer also includes being positioned at described first touch-control
Electrode away from described dielectric layer side the first water blocking layer, be positioned at described second touch control electrode away from the of described dielectric layer side
Two water blocking layers；
Described dielectric layer is flatness layer.
16. according to the touch screen described in any one of claim 14～15, it is characterised in that described underlay substrate is flexible base
Plate.
17. 1 kinds of display devices, it is characterised in that include touching in claim 1～10 or according to any one of 14～16
Control screen.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610666152.4A CN106249975B (en) | 2016-08-12 | 2016-08-12 | A kind of production method of touch screen, display device and touch screen |
| CN201811114579.9A CN109343752B (en) | 2016-08-12 | 2016-08-12 | Touch screen and display device |
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| CN201610666152.4A CN106249975B (en) | 2016-08-12 | 2016-08-12 | A kind of production method of touch screen, display device and touch screen |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811114579.9A Division CN109343752B (en) | 2016-08-12 | 2016-08-12 | Touch screen and display device |
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| Publication Number | Publication Date |
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| CN106249975A true CN106249975A (en) | 2016-12-21 |
| CN106249975B CN106249975B (en) | 2018-11-06 |
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| CN201811114579.9A Expired - Fee Related CN109343752B (en) | 2016-08-12 | 2016-08-12 | Touch screen and display device |
| CN201610666152.4A Active CN106249975B (en) | 2016-08-12 | 2016-08-12 | A kind of production method of touch screen, display device and touch screen |
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| CN201811114579.9A Expired - Fee Related CN109343752B (en) | 2016-08-12 | 2016-08-12 | Touch screen and display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109343752A (en) | 2019-02-15 |
| CN109343752B (en) | 2022-04-12 |
| CN106249975B (en) | 2018-11-06 |
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