CN108897454A - Touch panel and manufacturing method thereof, display panel integrated with touch and display device - Google Patents
Touch panel and manufacturing method thereof, display panel integrated with touch and display device Download PDFInfo
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- CN108897454A CN108897454A CN201810717495.8A CN201810717495A CN108897454A CN 108897454 A CN108897454 A CN 108897454A CN 201810717495 A CN201810717495 A CN 201810717495A CN 108897454 A CN108897454 A CN 108897454A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 242
- 239000010410 layer Substances 0.000 claims description 200
- 239000000758 substrate Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 19
- 238000005530 etching Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 5
- 239000002346 layers by function Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 7
- 238000001312 dry etching Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a touch panel and a manufacturing method thereof, a touch integrated display panel and a display device.
Description
Technical field
The present invention relates to technical field of electronic device, more specifically, being related to a kind of touch panel and preparation method thereof, collection
At the display panel of touch-control, display device.
Background technique
With the continuous development of science and technology, more and more the electronic equipment with touch function is widely used in
In the routine work and life of people, huge convenience is brought for daily life and work, becomes current
People live indispensable important tool.
Electronic equipment realizes that the main component of touch function is touch panel.Touch panel is detected by touch control electrode layer and is touched
Control position.In general, touch control electrode layer needs to be set as specific electrode pattern, form multiple touch control electrodes, touch control electrode it
Between need another layer of conductive layer prepare bridge be electrically connected.
In existing touch panel, it is easy to cause bridge that breaking problem occurs when preparing bridge, influences touch panel
Yield rate.
Summary of the invention
To solve the above-mentioned problems, technical solution of the present invention provides a kind of touch panel and preparation method thereof, integrated touching
The display panel of control, display device solve the problems, such as that open circuit easily occurs for bridge, improve the yield rate of product.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of touch panel, the touch panel include：
Substrate；
Touch control electrode layer and bridge electrode layer on the substrate, the touch control electrode layer and the bridge electrode are set
Layer stackup setting；
Insulating layer between the touch control electrode layer and the bridge electrode layer；
The touch control electrode layer includes multiple touch control electrodes；
The bridge electrode layer includes multiple bridges and auxiliary conducting part, and the bridge is metal connecting bridge, for connecting
Two adjacent electrode blocks are connect, the auxiliary conducting part and the bridge insulate.
The present invention also provides a kind of production methods, are used to prepare touch panel described in any of the above embodiments, and feature exists
In the production method includes：
One substrate is provided；
Patterned first conductive layer is formed in the substrate surface；
Insulating layer is formed in first conductive layer surface；
Patterned second conductive layer is formed in the surface of insulating layer；
Wherein, one of first conductive layer and second conductive layer are touch control electrode layer, and another one is bridge
Electrode layer；The touch control electrode layer includes multiple touch control electrodes；The bridge electrode layer includes multiple bridges and additional conductive
Portion, the bridge insulate for connecting two adjacent electrode blocks, the auxiliary conducting part and the bridge.
The present invention also provides a kind of display devices, including above-mentioned display panel.
As can be seen from the above description, touch panel that technical solution of the present invention provides and preparation method thereof integrates touch-control
In display panel, display device, setting bridge electrode layer includes multiple bridges and auxiliary conducting part, is connected by the bridge
Two adjacent electrode blocks in two adjacent touch control electrode layers, can increase the metal of bridge electrode layer by auxiliary conducting part
Line metal coverage rate, and then the breaking risk of bridge is reduced or avoids, improve the yield rate of product.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of top view of touch panel provided in an embodiment of the present invention；
Fig. 2 is sectional drawing of the touch panel shown in Fig. 1 in the direction A-A '；
Fig. 3 is the partial enlarged view of electrode pattern in the dashed circle region of touch panel shown in Fig. 1；
Fig. 4 is that the electrode of electronics pattern shown in Fig. 3 divides area schematic；
Fig. 5 is a kind of structural schematic diagram of the electrode pattern of touch panel provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the electrode pattern of another touch panel provided in an embodiment of the present invention；
Fig. 7 is a kind of flow diagram of production method provided in an embodiment of the present invention；
Fig. 8 is a kind of top view of display panel provided in an embodiment of the present invention；
Fig. 9 is a kind of sectional drawing of display panel provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the touch panel for needing to connect touch control electrode by bridge, the bridge electrode layer for being used to prepare bridge is
Metal layer.The common process method that patterned process is carried out to metal layer is dry etching, still, since bridge electrode layer passes through
After patterned process forms bridge, the metal covering of bridge electrode layer is lower, in the corresponding region of entire touch panel, only
The bridge of partial region, and most of region is the spare area for not having bridge, therefore the part of patterned bridge electrode layer is
Even property is poor, when carrying out patterned process to the bridge electrode layer by dry etching, needs entire bridge electrode layer
Only retain extremely least a portion of bridge pattern by dry etching, but due to the limitation of current dry etch process condition, for spy
The very sparse pattern of not fine pattern or distribution, can not be accurately controlled etched features, etch rate and degree, be easy to cause
There is breaking problem in metal wire as bridge, to influence yield rate.
To solve the above-mentioned problems, technical solution described in the embodiment of the present invention increases the additional conductive with bridge same layer
Portion prepares the auxiliary conducting part and the bridge simultaneously by the bridge electrode layer, after patterned process can be improved in this way
The bridge electrode layer metal coverage rate and pattern uniformity, due to increasing auxiliary conducting part, patterning bridge
When electrode layer, for the etching ion of metered dose, the etching of etching ion pair bridge can be alleviated by auxiliary conducting part, or
Person can be adjusted or be reduced etch rate by auxiliary conducting part, keep etching process more controllable, avoid via hole risk, and then reduce
Or the risk for avoiding bridge from breaking, improve yield rate.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
With reference to Fig. 1-Fig. 4, Fig. 1 is a kind of top view of touch panel provided in an embodiment of the present invention, and Fig. 2 is shown in Fig. 1
For touch panel in the sectional drawing in the direction A-A ', Fig. 3 is the part of electrode pattern in the dashed circle region of touch panel shown in Fig. 1
Enlarged drawing, Fig. 4 are that the electrode of electronics pattern shown in Fig. 3 divides area schematic, and touch panel described in the embodiment of the present invention includes：
Substrate 11；Touch control electrode layer and bridge electrode layer in the substrate 11, the touch control electrode layer and bridge electricity are set
The setting of pole layer stackup；Insulating layer 12 between the touch control electrode layer and the bridge electrode layer.
The touch control electrode layer includes multiple touch control electrodes 13；The bridge electrode layer includes multiple bridges 14 and auxiliary
Conductive part 15, the bridge 14 is metal connecting bridge, for connecting the electrode block 13 of adjacent two, the auxiliary conducting part
15 insulate with the bridge 14.Insulating protective layer can be covered in bridge electrode layer surface.
Specifically, as depicted in figs. 1 and 2, electrode layer includes multiple touch control electrodes 13, and multiple touch control electrodes 13 are divided into more
A first electrode channel Tx and second electrode channel Rx.Each first electrode channel TX includes multiple touchings along first direction arrangement
Electrode 13 is controlled, each second electrode channel RX includes multiple touch control electrodes 13 arranged in a second direction, first direction and second
Direction is vertical.
It should be noted that, although auxiliary conducting part 15 shown in attached drawing and 14 filling pattern of bridge be not in the present embodiment
Together, but auxiliary conducting part 15 and the same conductive material of 14 same layer of bridge, it is prepared simultaneously by same layer conductive material.
In touch panel described in the embodiment of the present invention, the touch control electrode layer can be ITO layer, and each touch control electrode 13 is
One piece of ITO, alternatively, each touch control electrode 13 can be metal grill.In the embodiment of the present invention, it is preferably provided with the touch-control
Electrode 13 is metal grill.On the one hand, metal grill has lesser impedance relative to ITO, and on the other hand, metal grill can be compared with
The good touch panel suitable for flexible bendable has preferably bending characteristic relative to ITO electrode.Specifically, so institute
Stating touch control electrode 13 to be also includes the metal grill formed by the metal wire 22 of a plurality of intersection.
When the touch control electrode 13 constituted using metal grill, in bridge electrode layer, the bridge 14 includes at least one
Metal bridge line 25.
Optionally, the metal wire 22 of the metal bridge line 25 and the metal grill overlaps, so as to avoid across
The transmitance of the influence touch control electrode 13 of bridge 14.
But set bridge 14 to the structure of metal bridge line, it, can be further relative to the bridge structure of traditional planar
The metal coverage rate for reducing bridge electrode layer, so that the uniformly distributed uniformity of bridge electrode layer is worse, that is to say, that relative to
The metallic conduction bridge of traditional blocky ITO bridge or bulk, the bridge 14 with 25 structure of metal bridge line, linear pattern
It is smaller, it is easier to open circuit problem caused by above-mentioned over etching occur.In technical solution described in the embodiment of the present invention, pass through increasing
Add the auxiliary conducting part 15 with 14 same layer of bridge, metal coverage rate and the local pattern that bridge electrode layer can be improved are uniform
Property, to avoid open circuit problem caused by above-mentioned over etching.
In the embodiment of the present invention, one end of the metal bridge line 25 passes through at least two through-holes 26 for running through the insulating layer
It is connect with a touch control electrode, the other end is electric through the through-hole 26 of the insulating layer and another touch-control by least two
Pole connection.In the mode shown in Fig. 3 and Fig. 4, a bridge 14 includes two metal bridge lines 25, for connecting touch-control
Electrode P1 and touch control electrode P3.According to the network of touch control electrode layer, the bridge 14 is set with a plurality of parallel arrangement
22 face of metal wire in metal bridge line 25, metal bridge line 25 and metal grill is arranged, and without departing from the model of corresponding metal wire 22
It encloses, relative to the bridge structure of traditional planar, design and the touch control electrode layer with metal grill in technical solution of the present invention
Matched bridge 14, does not influence the light transmittance of metal grill.And metal bridge line 25 is arranged in the electrode pattern based on metal grill,
Setting metal bridge line 25 matched with metal wire 22, without being individually laid out the position of metal ball bridge line 25, it is only necessary to in requisition for
The corresponding 22 location layout metal bridge line 25 of metal wire of two touch control electrodes 13 of bridge joint, the metal wire based on metal grill
22 layout metal bridge lines 25 have uniformity layout since touch control electrode 13 is the positive surface uniformity for guaranteeing touch-control, therefore corresponding
, it is also uniform layout that all metal bridge lines 25, which are also relative to entire touch panel, and each metal bridge line is relatively thin
Shorter line segment will not introduce moire fringes problem.
It should be noted that the level for the ease of component in Different electrodes layer in the clear diagram touch panel closes
System, is only to show a metal routing section 21 of auxiliary conducting part 15 in Fig. 1, does not indicate its actual size, do not show that
Other metal routing sections 21.In actual product, 22 size of metal wire of the metal routing section 21 and touch control electrode 13 matches.
Touch control electrode layer can be set between substrate 11 and bridge electrode layer, or setting bridge electrode layer is located at
Between touch control electrode layer and substrate 11, the present invention is not specifically limited the relativeness of three.
In the embodiment of the present invention, the metal routing section 21 is set and is overlapped with the metal wire 22, i.e., the described metal routing
Section 21 is located at the region at 22 place of metal wire in the orthographic projection of the substrate 11, in this way can be to avoid the metal routing section
21 additional occupancy glazed areas.Therefore the setting metal routing section 21 is located at the metal wire in the orthographic projection of the metal grill
In region where 22, to avoid the influence due to the bridge electrode layer in rear formation to touch control electrode layer light transmittance.
In the embodiment of the present invention, the auxiliary conducting part 15 includes the metal routing section 21 of a plurality of separation distribution.It is arranged auxiliary
Help conductive part 15 that there is the metal routing section 21 of a plurality of separation distribution, the metal of the bridge electrode layer after can increasing patterning covers
Lid rate, and the part that the bridge electrode layer after patterning can be reduced by the distribution of setting metal routing section 21 is uneven
Property.
Adjacent 21 length of metal routing section is different；And/or adjacent 21 extending direction of the metal routing section difference.
The layout position of the quantity of metal routing section 21, the length of metal routing section 21 and metal routing section 21 can be designed according to demand
It sets.By setting 21 length of metal routing section and extending direction can avoid the occurrence of the biggish metal routing section of length, avoid by
Lead to moire fringes problem occur in the design of metal routing section 21.
When the touch control electrode layer is metal grill, the metal grill includes a plurality of first metal wire disposed in parallel
23；First metal wire 23 extends along first direction X；There is one group between first metal wire 23 of two of arbitrary neighborhood
Second metal wire 24, every group of second metal wire 24 have a plurality of second metal wire 24 disposed in parallel, second metal wire 24
Y extends in a second direction, the first direction X perpendicular to the second direction Y, second metal wire 24 at least with it is adjacent
One first metal wire 23 connects；The second metal on the second direction Y, in two group of second adjacent metal wire 24
Line 24 is staggered.First metal wire 23 divides for multiple isolated subsegments.
Every first metal wire 23 is divided for multiple isolated subsegments, by the metal wire in the second metal wire of two adjacent groups 24
Be staggered, can to avoid be only to occur longer lines in grid, and then can be to avoid image display when there are moire fringes
The problem of.
In the embodiment of the present invention, it is arranged in bridge electrode layer, the 21 face touch-control electricity of metal routing section of auxiliary conducting part 15
Metal wire 22 in the layer of pole, and it is no more than the metal wire 22 of institute's face, therefore metal routing section 21 is set on the basis of metal wire 22
With 22 location matches of metal wire, the metal that the metal wire 22 based on metal grill in touch control electrode layer is arranged in bridge electrode layer is walked
Line segment 21 will not reduce the transmitance of metal grill without being individually laid out the layout of metal routing section 21, in not moire fringes
The metal routing section 21 being laid out on the basis of metal wire 22 will not bring moire fringes problem.Based on identical principle, bridge is set
Metal bridge line 25 in 14, it is same without individually layout metal bridge line 25, the transmitance of metal grill will not be reduced, will not bring and rub
That line problem.And since metal routing section 21 and metal bridge line 25 are all based on the setting of the metal wire 22 in metal grill, by
Metal wire 22 is evenly arranged in touch-control design requirement, metal grill, therefore can be made in bridge electrode layer, with metal wire
The 22 metal routing sections 21 being correspondingly arranged and metal bridge line 25 have preferable local homogeneity.
In the mode shown in Fig. 3 and Fig. 4, the extending direction of a part of metal routing section 21 is first direction X, another
The extending direction of the part metal routing section is that second direction Y, the first direction X and the second direction Y are not parallel.The
One direction X and second direction Y is each parallel to the substrate 11 of touch panel, and the two is mutually perpendicular to.In other modes, first direction
X and second direction Y can also be with out of plumb.
In which, along first direction X extend a part of metal routing section 21 along, the metal routing section 21 with it is described
The subsegment of first metal wire 23 is overlapped, each corresponding described first metal wire, 23 1 subsegments of the metal routing section 21, and not
Range beyond corresponding subsegment；In another part metal routing section 21 that Y extends in a second direction, the metal routing section 21 with
Second metal wire 24 is overlapped, and corresponding second metal wire 24 of each metal routing section 21.
The mode shown in Fig. 1, Fig. 3 and Fig. 4 shows four touch control electrodes P1, P2, P3 and P4, touch control electrode P2 and touch-control
The metal wire 22 of electrode P4 is same layer connection, and touch control electrode P1 and touch control electrode P3 are connected by bridge 14.Due to net
In lattice electrode, metal wire 22 is more intensive, for the ease of showing the region division of four touch control electrodes in electrode pattern,
The division boundary of four touch control electrodes is shown in Fig. 4 by a dotted line, it should be noted that the dotted line is only for illustrating
In actual product and the dotted line is not present in the division boundary of four electrodes.
With reference to Fig. 5, Fig. 5 is a kind of structural schematic diagram of the electrode pattern of touch panel provided in an embodiment of the present invention,
In mode shown in Fig. 5, in the auxiliary conducting part 15, it is first party that the extending direction of the metal routing section 21 is all the same
To X.In this approach, the metal routing section 21 is Chong Die with the subsegment of first metal wire 23, each metal routing
Corresponding described first metal wire, 23 1 subsegments of section 21, and without departing from the range of corresponding subsegment.
With reference to Fig. 6, Fig. 6 is the structural schematic diagram of the electrode pattern of another touch panel provided in an embodiment of the present invention,
In the mode shown in scheming, in the auxiliary conducting part 15, it is second party that the extending direction of the metal routing section 21 is all the same
To Y.In this approach, the metal routing section 21 is Chong Die with second metal wire 24, and each metal routing section 21
Corresponding second metal wire 24.It is such as above-mentioned in which, metal mesh will not be reduced without being individually laid out metal routing section 21
The transmitance of lattice, will not bring moire fringes problem, and be laid out metal routing section 21 based on the second metal wire 24, can make across
Metal routing section 21 has preferable local homogeneity in bridge electrode layer, avoids 21 pairs of touch control electrode partial loads of metal routing section
It impacts.
The present invention is in touch panel described in example, and in the bridge electrode layer, metal coverage rate is the first metal covering
Rate；In the touch control electrode layer, metal coverage rate is the second metal coverage rate；First metal coverage rate is greater than described second
The 3% of metal coverage rate, and it is less than the 99% of second metal coverage rate.Metal coverage rate is that patterned metal layer is opposite
In the area percentage of touch panel.The study found that in conventional touch panel, bridge electrode layer only has to be used for inventor
The bridge of electrical connection touch control electrode, 3% of metal coverage rate less than patterned touch control electrode layer, and the metal less than 3%
Coverage rate will lead to during dry etching, and bridge structure is easy to be carved disconnected, lead to breaking problem occur, if it is possible to will be across
The metal coverage rate of bridge electrode layer is increased to the range of 3%-99%, can reduce and dry etching process bridge structure is avoided to be carved
Disconnected probability even avoids the generation of the problem.In the embodiment of the present invention, by auxiliary conducting part, final figure can be increased
The metal coverage rate of the bridge electrode layer of case, so that metal coverage rate is increased to the range of 3%-99% in bridge electrode layer,
It can reduce or avoid bridge to be carved disconnected risk, yield rate can be improved.
Fig. 3-Fig. 6 is the structural schematic diagram of the same area electrode pattern, the difference is that metal is walked in auxiliary conducting part
The layout type of line segment 21 is different.
In touch panel described in the embodiment of the present invention, touch-control is influenced in order to avoid auxiliary conducting part floating generates induced voltage
It is identical as the electric signal that the touch control electrode inputs that the electric signal that the auxiliary conducting part 15 inputs is arranged in testing result.Specifically
, the auxiliary conducting part 15 can be set and connect with the touch control electrode 13 by the through-hole through the insulating layer, or,
It is individually for 15 input electrical signal of auxiliary conducting part.
In the embodiment of the present invention, the touch control electrode layer includes the more metal layers being stacked.Optionally, the multilayer
Metal layer includes the Mo layer being cascading, Al layers and Mo layers；Or, the Ti layer being cascading, Al layers and Ti layers.
In touch panel described in the embodiment of the present invention, by the way that auxiliary conducting part is arranged in bridge electrode layer, it can be improved
The metal coverage rate of patterned bridge electrode layer, improves the uniformity of metal wire in patterned bridge electrode layer, and then keeps away
Exempt from the breaking problem of bridge 14.Furthermore it is possible to by using the touch control electrode layer of metal mesh structure, setting bridge 14 have with
The matched metal bridge line 25 of metal grill, setting auxiliary conducting part 15 have and the matched metal routing of the metal grill
Section 21 can make touch panel have better flexural property, have smaller impedance, have better transmitance.
Based on above-mentioned touch panel embodiment, another embodiment of the present invention additionally provides a kind of production method, for making
Touch panel described in above-described embodiment, this directly walks method as shown in fig. 7, Fig. 7 is a kind of production provided in an embodiment of the present invention
The flow diagram of method, the production method include：
Step S11：One substrate is provided.
The substrate can be the transparent substrates such as glass plate or transparent plastic sheet.
Step S12：Patterned first conductive layer is formed in the substrate surface.
Step S13：Insulating layer is formed in first conductive layer surface.
Insulating layer is transparent material preparation, in order to make the touch panel can be used for the display panel of integrated touch-control.
Step S14：Patterned second conductive layer is formed in the surface of insulating layer.
Wherein, one of first conductive layer and second conductive layer are touch control electrode layer, and another one is bridge
Electrode layer；The touch control electrode layer includes multiple touch control electrodes；The bridge electrode layer includes multiple bridges and additional conductive
Portion, the bridge insulate for connecting two adjacent electrode blocks, the auxiliary conducting part and the bridge.
The touch control electrode layer is the more metal layers being stacked；The forming method of the touch control electrode layer includes：According to
The secondary deposition metal layer；The grid electrode layer of setting graphic structure is formed by etching technics.The formation side of bridge electrode layer
Method can be identical as the forming method of the touch control electrode.
Production method described in the embodiment of the present invention can prepare institute using technical maturity, dry etch process at low cost
Bridge electrode layer is stated, and bridge electrode layer is arranged there is auxiliary conducting part, the metal of patterned bridge electrode layer can be improved
Coverage rate, improves the uniformity of metal wire in patterned bridge electrode layer, and then avoids the breaking problem of bridge.In addition, such as
, can be by using the touch control electrode layer of metal mesh structure described in above-described embodiment, bridge, which is arranged, to be had and the metal mesh
The matched metal bridge line of lattice, setting auxiliary conducting part have with the matched metal routing section of the metal grill, can to touch
Controlling panel has better flexural property, has smaller impedance, has better transmitance.
Based on above-mentioned touch panel and preparation method thereof embodiment, another embodiment of the present invention additionally provides a kind of integrated touching
The display panel of control, as shown in figure 8, Fig. 8 is a kind of top view of display panel provided in an embodiment of the present invention, shown display surface
It is touch panel described in example that plate 31, which includes above-mentioned,.
With reference to Fig. 9, Fig. 9 is a kind of sectional drawing of display panel provided in an embodiment of the present invention, in the embodiment of the present invention, institute
Stating display panel includes：Substrate 41；Array layer 42 in the substrate 41；Light-emitting function on the array layer 42
Layer 43；Encapsulated layer 44 in the light emitting functional layer 43；Wherein, the encapsulated layer 44 is touch surface described in above-described embodiment
The substrate 11 of plate.Bridge electrode layer and touch control electrode layer, bridge electrode layer and touch-control are provided on the encapsulated layer 44
Electrode layer design method can be described with reference to above-described embodiment, and details are not described herein.
The array layer includes tft array for driving light emitting functional layer 43 to carry out luminescence display.The light emitting functional layer
OLED pixel including multiple array arrangements.The display panel is OLED display panel.
In display panel described in the embodiment of the present invention, the light emission side that the bridge electrode layer is located at display panel is set.It is first
First patterned touch control electrode layer is formed on the encapsulated layer 44 as substrate, then re-form insulating layer and it is patterned across
Bridge electrode layer.The graphic structure of graphic structure setting bridge electrode layer based on touch control electrode layer, it is not necessary that bridge electricity is separately provided
The layout of bridge 14 and auxiliary conducting part 15 in the layer of pole, when using the touch control electrode 13 of metal mesh structure, auxiliary conducting part
15 metal routing section is overlapped with metal wire corresponding in metal grill respectively, and metal routing section line width is arranged and is no more than
Metal wire line width will not influence the transmitance of metal grill.
Different, in other alternative embodiments of the invention, the bridge electrode layer can be set and be located at touch control electrode
The side of light-emitting surface of the layer far from display panel.Further, the metal bridge line of the metal routing section and bridge of auxiliary conducting part
Line width is respectively less than the line width of the metal wire of metal grill.Because auxiliary conducting part is closer to the light source of display panel, to viewer
For, therefore auxiliary conducting part can be greater than touch control electrode to the light shield degree of display panel can keep away through this embodiment
The graphic structure for exempting from the bridge electrode layer by close to sources influences light transmittance.
In display panel described in the embodiment of the present invention, including touch panel described in above-described embodiment, in the touch panel
In, by the way that auxiliary conducting part is arranged in bridge electrode layer, the metal coverage rate of patterned bridge electrode layer can be improved, mention
The uniformity of metal wire in high patterned bridge electrode layer, and then avoid the breaking problem of bridge.Furthermore it is possible to by using
The touch control electrode layer of metal mesh structure, setting bridge has to be led with the matched metal bridge line of the metal grill, setting auxiliary
Electric portion have with the matched metal routing section of the metal grill, can make touch panel have better flexural property, tool
There is smaller impedance, there is better transmitance.
Based on the above embodiment, another embodiment of the present invention additionally provides a kind of display device, and shown display device is as schemed
Shown in 10, Figure 10 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention, and shown display device 51 includes upper
It states and implements the display panel.The display device can for mobile phone, tablet computer, integrated computer, desktop computer and
TV etc. has the electronic equipment of touch display function.
The display device is using display panel described in above-described embodiment, in the touch panel of the display panel, leads to
It crosses and auxiliary conducting part is set in bridge electrode layer, the metal coverage rate of patterned bridge electrode layer can be improved, improve figure
The uniformity of metal wire in the bridge electrode layer of case, and then avoid the breaking problem of bridge.Furthermore it is possible to by using metal
The touch control electrode layer of network, setting bridge have and the matched metal bridge line of the metal grill, setting auxiliary conducting part
With with the matched metal routing section of the metal grill, can make touch panel have better flexural property, have more
Small impedance has better transmitance.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For being made disclosed in embodiment
For method, display panel and display device, since it is corresponding with touch panel disclosed in embodiment, so the ratio of description
Relatively simple, related place illustrates referring to touch panel corresponding part.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (20)
1. a kind of touch panel, which is characterized in that the touch panel includes：
Substrate；
Touch control electrode layer and bridge electrode layer on the substrate is set, and the touch control electrode layer and the bridge electrode are layer by layer
Folded setting；
Insulating layer between the touch control electrode layer and the bridge electrode layer；
The touch control electrode layer includes multiple touch control electrodes；
The bridge electrode layer includes multiple bridges and auxiliary conducting part, and the bridge is metal connecting bridge, for connecting phase
Two adjacent electrode blocks, the auxiliary conducting part and the bridge insulate.
2. touch panel according to claim 1, which is characterized in that the auxiliary conducting part includes a plurality of separation distribution
Metal routing section.
3. touch panel according to claim 2, which is characterized in that
The adjacent metal routing segment length is different；
And/or the adjacent metal routing section extending direction difference.
4. touch panel according to claim 2, which is characterized in that the extending direction of the metal routing section is all the same；
Or, the extending direction of a part of metal routing section is first direction, the extension of metal routing section described in another part
Direction is second direction, and the first direction and the second direction are not parallel.
5. touch panel according to claim 2, which is characterized in that the touch control electrode includes by the metal of a plurality of intersection
The metal grill that line is formed.
6. touch panel according to claim 5, which is characterized in that the metal routing section is overlapped with the metal wire.
7. touch panel according to claim 6, which is characterized in that the metal routing section the metal grill just
Projection is in the region where the metal wire.
8. touch panel according to claim 5, which is characterized in that the metal grill includes a plurality of disposed in parallel
One metal wire；First metal wire extends in a first direction；
There is one group of second metal wire, every group of second metal wire has a plurality of between first metal wire of two of arbitrary neighborhood
Second metal wire disposed in parallel, second metal wire extend in a second direction, and the first direction is perpendicular to described second
Direction, second metal wire are at least connect with adjacent first metal wire；
In this second direction, the second metal wire in two group of second adjacent metal wire is staggered.
9. touch panel according to claim 8, which is characterized in that the metal routing section and the second metal wire weight
It is folded, and corresponding second metal wire of each metal routing section.
10. touch panel according to claim 5, which is characterized in that in the bridge electrode layer, metal coverage rate
One metal coverage rate；
In the touch control electrode layer, metal coverage rate is the second metal coverage rate；
First metal coverage rate is greater than the 3% of second metal coverage rate, and is less than second metal coverage rate
99%.
11. touch panel according to claim 1, which is characterized in that the bridge includes at least a metal bridge line, institute
The through-hole that the insulating layer is run through by least two in the one end for stating metal bridge line is connect with a touch control electrode, and the other end is logical
The through-hole that at least two run through the insulating layer is crossed to connect with another touch control electrode.
12. touch panel according to claim 1, which is characterized in that the electric signal of the auxiliary conducting part input and institute
The electric signal for stating touch control electrode input is identical.
13. touch panel according to claim 9, which is characterized in that the auxiliary conducting part and the touch control electrode are logical
Cross the through-hole connection through the insulating layer.
14. touch panel according to claim 1, which is characterized in that the touch control electrode layer include be stacked it is more
Layer metal layer.
15. touch panel according to claim 14, which is characterized in that the more metal layers include being cascading
Mo layer, Al layers and Mo layers；
Or, the Ti layer being cascading, Al layers and Ti layers.
16. a kind of production method is used to prepare such as the described in any item touch panels of claim 1-15, which is characterized in that institute
Stating production method includes：
One substrate is provided；
Patterned first conductive layer is formed in the substrate surface；
Insulating layer is formed in first conductive layer surface；
Patterned second conductive layer is formed in the surface of insulating layer；
Wherein, one of first conductive layer and second conductive layer are touch control electrode layer, and another one is bridge electrode
Layer；The touch control electrode layer includes multiple touch control electrodes；The bridge electrode layer includes multiple bridges and auxiliary conducting part, institute
It states bridge and insulate for connecting two adjacent electrode blocks, the auxiliary conducting part and the bridge.
17. production method according to claim 16, which is characterized in that the touch control electrode layer is the multilayer being stacked
Metal layer；
The forming method of the touch control electrode layer includes：
It is sequentially depositing the metal layer；
The grid electrode layer of setting graphic structure is formed by etching technics.
18. a kind of display panel of integrated touch-control, including such as the described in any item touch panels of claim 1-15.
19. display panel according to claim 18, which is characterized in that the display panel includes：
Substrate；
Array layer in the substrate；
Light emitting functional layer on the array layer；
Encapsulated layer in the light emitting functional layer；
Wherein, the encapsulated layer is the substrate of the touch panel.
20. a kind of display device, which is characterized in that including the display panel as described in claim 18 or 19.
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| CN201810717495.8A CN108897454B (en) | 2018-06-29 | 2018-06-29 | Touch panel and manufacturing method thereof, display panel integrated with touch and display device |
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| CN201810717495.8A CN108897454B (en) | 2018-06-29 | 2018-06-29 | Touch panel and manufacturing method thereof, display panel integrated with touch and display device |
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| EP4294156A4 (en) * | 2021-08-30 | 2024-05-01 | BOE Technology Group Co., Ltd. | Light-emitting substrate and display apparatus |
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