CN106406607A - Touch panel and manufacturing method thereof - Google Patents
Touch panel and manufacturing method thereof Download PDFInfo
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- CN106406607A CN106406607A CN201610784684.8A CN201610784684A CN106406607A CN 106406607 A CN106406607 A CN 106406607A CN 201610784684 A CN201610784684 A CN 201610784684A CN 106406607 A CN106406607 A CN 106406607A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 230000006698 induction Effects 0.000 claims abstract description 97
- 239000000758 substrate Substances 0.000 claims abstract description 95
- 238000000034 method Methods 0.000 claims abstract description 29
- 230000004888 barrier function Effects 0.000 claims description 53
- 238000000059 patterning Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 177
- 239000004020 conductor Substances 0.000 description 19
- 230000000007 visual effect Effects 0.000 description 15
- 239000011241 protective layer Substances 0.000 description 14
- 230000000903 blocking effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- 239000007769 metal material Substances 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 240000001439 Opuntia Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention provides a touch panel and a manufacturing method thereof. The first substrate is arranged on one side of the second substrate. The first induction electrode and the second induction electrode are arranged on the first substrate and are positioned between the second substrate and the first substrate. The insulating layer covers the first sensing electrode and the second sensing electrode, and a pair of through holes are formed in the insulating layer. The bridging electrode is arranged on the insulating layer, spans the second sensing electrode and is electrically connected with two of the first sensing electrodes through the through hole. The electrode layer comprises a common electrode region and a protection electrode region, wherein the common electrode region is arranged on the insulating layer, the protection electrode region covers the bridging electrode, and the common electrode region and the protection electrode region are electrically insulated with each other. The display medium layer is arranged between the electrode layer and the second substrate. No extra mask process is needed, and the cost is saved.
Description
Technical field
The present invention relates to a kind of contact panel and preparation method thereof.
Background technology
Among the various electronic product of domestic electric appliance, applied film transistor (thin film transistor；
TFT display) has been widely used.Display is mainly by thin-film transistor array base-plate, colored filter substrate
Constituted with display dielectric layer, be wherein provided with thin-film transistor array base-plate multiple thin film transistor (TFT)s with array arrangement with
Pixel electrode (pixel electrode), and thin film transistor (TFT) correspondence is configured at pixel electrode (pixel electrode).Aobvious
Show that dielectric layer is filled in display, display dielectric layer is controlled by thin film transistor (TFT) and pixel electrode, to reach display
Image present.
In display, the structure of the dot structure on substrate is usually multiple structure, and more complicated or more multilamellar knot
Structure just can will be completed by the light shield technique of more multiple tracks.However, many one light shield techniques, that is, can be to the complexity of integrated artistic
The cost of degree and display causes to bear.In this regard, how to simplify the technique of dot structure and reduce its cost, it has also become related
One of the important research and development in field problem.
Content of the invention
Based on above-mentioned, the present invention provides a kind of contact panel and preparation method thereof, to solve integrated artistic in prior art
Complexity, the problem of high processing costs.
One embodiment of the present invention provides a kind of contact panel, comprises first substrate, second substrate, the first faradism
Pole, the second induction electrode, insulating barrier, bridged electrodes, electrode layer and display dielectric layer.First substrate is arranged at the one of second substrate
Side.First induction electrode and the second induction electrode are arranged on first substrate, and are located between second substrate and first substrate.Absolutely
Edge layer covers the first induction electrode and the second induction electrode, and a pair of through hole is formed at insulating barrier.Bridged electrodes are arranged at insulation
On layer, wherein bridged electrodes cross over the second induction electrode, and by through hole be electrically connected with the first induction electrode wherein both.Electricity
Pole floor comprises common electrode area and shield electrode area, and wherein common electrode area is arranged on insulating barrier, and shield electrode area covers bridge
Receiving electrode, and common electrode area is electrically insulated from shield electrode area.Display dielectric layer is arranged at electrode layer and second substrate
Between.
One embodiment of the present invention provides a kind of manufacture method of contact panel, comprises the steps of.Form multiple
One induction electrode and the second induction electrode are on first substrate.Form insulating barrier and cover the first induction electrode and the second faradism
Pole.Form a pair of through hole in insulating barrier, and formed the position of through hole correspond to the first induction electrode wherein both.Setting bridge joint
Electrode on the insulating barrier and in through hole, and bridged electrodes be electrically connected with by through hole the first induction electrode wherein both.Figure
The common electrode area of caseization formation electrode layer is provided with common electrode area with shield electrode area on insulating barrier and bridged electrodes
On insulating barrier, the shield electrode area of setting electrode layer is in bridged electrodes, and the common electrode area of electrode layer and shield electrode area
It is electrically insulated from.
Understood based on technique scheme, the method have technical effect that：
A kind of contact panel that embodiments of the present invention provide, it can pass through the shield electrode area of electrode layer as bridge joint
The protective layer of electrode, to prevent bridged electrodes and the display medium of display dielectric layer from producing not expected reciprocal action, Jin Eryan
The service life of long bridged electrodes.Due to the shield electrode area protective layer as bridged electrodes of electrode layer is used, therefore in bridge joint
In the subsequent technique of electrode and electrode layer, simplification contact panel can be used without re-forming layer protective layer in bridged electrodes
Technique and reduces cost.Additionally, in the step forming bridged electrodes, also synchronously bridge joint can be formed by same conductor layer
Electrode and conductive layer, wherein conductive layer can be in parallel with the common electrode area of electrode layer, use the common electrode of lifting electrode layer
The electrical conductivity ability in area.And due to bridged electrodes and conductive layer be by same conductor layer through with along with light shield technique and shape
Become, therefore be not required to additionally increase again light shield technique.
Brief description
Figure 1A illustrates the schematic side view of the contact panel of first embodiment of the invention.
Figure 1B illustrates the top view of the light shield layer of the contact panel of Figure 1A, and the wherein visual angle of Figure 1B is the first base from Figure 1A
Plate is towards light shield layer.
Fig. 2A illustrates the schematic diagram of the part-structure of the contact panel of Figure 1A, and the wherein visual angle of Fig. 2A is second from Figure 1A
Substrate is towards first substrate, and second substrate, display dielectric layer, electrode layer and insulating barrier are not illustrated in Fig. 2A.
Fig. 2 B illustrates the schematic diagram of the part-structure of the contact panel of Figure 1A, and the visual angle of wherein Fig. 2 B is from Figure 1A second
Substrate is towards first substrate, and only illustrates insulating barrier with bridged electrodes in Fig. 2 B.
Fig. 2 C illustrates the schematic diagram of the part-structure of the contact panel of Figure 1A, and the visual angle of wherein Fig. 2 C is from Figure 1A second
Substrate is towards first substrate, and display dielectric layer is not illustrated in Fig. 2 C.
Fig. 2 D illustrates the enlarged drawing of the region D of Fig. 2 C.
Fig. 3 illustrates the schematic side view of the contact panel of second embodiment of the invention, the wherein visual angle of Fig. 3 and Figure 1A phase
With.
Fig. 4 A illustrates the schematic diagram of the part-structure of the contact panel of Fig. 3, and the visual angle of wherein Fig. 4 A is the second base from Fig. 3
Plate is towards first substrate, and only illustrates insulating barrier, bridged electrodes and conductive layer in Fig. 4 A.
Fig. 4 B illustrates the schematic diagram of the part-structure of the contact panel of Fig. 3, and the visual angle of wherein Fig. 4 B is the second base from Fig. 3
Plate is towards first substrate, and display dielectric layer is not illustrated in Fig. 4 B.
Description of reference numerals：
100A, 100B contact panel
102 first substrates
104 light shield layers
106 pixel regions
108 color blocking layers
109a, 109b, 109c color blocking
110 first induction electrodes
111 second induction electrodes
112 insulating barriers
113 through holes
114 bridged electrodes
116 electrode layers
118 common electrode area
120 shield electrode areas
122 display dielectric layers
124 display mediums
126 second substrates
128 conductive layers
AA ' line segment
D region
W, W ' width
Specific embodiment
Below by the details with multiple embodiments of the open present invention of accompanying drawing, as clearly stated, in many practices
Will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the present invention, the details in these practices is non-essential.Additionally, for the sake of simplifying accompanying drawing, one
Existing usual structure and element will be illustrated in the accompanying drawings in the way of simple signal a bit.
Just can will be completed by the light shield technique of more multiple tracks in view of more complicated or more multilamellar dot structure, this
The electrode layer that bright contact panel is comprised comprises common electrode area and shield electrode area, and the shield electrode area of wherein electrode layer can
As the protective layer of bridged electrodes, produced with the display medium preventing bridged electrodes and display dielectric layer and not expected interact work
With, and then extend the service life of bridged electrodes.Due to the shield electrode area protective layer as bridged electrodes of electrode layer is used,
Therefore in the subsequent technique of bridged electrodes and electrode layer, simplification can be used without re-forming layer protective layer in bridged electrodes
The technique of contact panel reduces cost.
Refer to Figure 1A, wherein Figure 1A illustrates the schematic side view of the contact panel 100A of first embodiment of the invention.
Contact panel 100A comprises first substrate 102, second substrate 126, light shield layer 104, the first induction electrode 110, the second faradism
Pole 111, insulating barrier 112, bridged electrodes 114, electrode layer 116 and display dielectric layer 122, wherein first substrate 102 are arranged at
The side of two substrates 126, and light shield layer 104, the first induction electrode 110, the second induction electrode 111, insulating barrier 112, bridge joint electricity
Pole 114, electrode layer 116 and display dielectric layer 122 are arranged between first substrate 102 and second substrate 126.
First substrate 102 can be glass substrate.Light shield layer 104 is arranged on first substrate 102, wherein light shield layer 104
Can be latticed, to define multiple pixel regions 106.For example, look at Figure 1B, Figure 1B illustrates the contact panel 100A's of Figure 1A
The visual angle of the top view of light shield layer 104, wherein Figure 1B is from the first substrate 102 of Figure 1A towards light shield layer 104.In Figure 1B, hide
Photosphere 104 is latticed, and it can go out pixel region 106 by mesh definition.Additionally, contact panel 100A depicted in Figure 1A
Schematic side view can correspond to the section of the line segment AA ' in Figure 1B, therefore light shield layer 104 non-exhibiting that Figure 1A is painted is latticed.
Please return Figure 1A.First induction electrode 110 and the second induction electrode 111 are arranged on first substrate 102, and position
Between second substrate 126 and first substrate 102.Furthermore, the first induction electrode 110 and the second induction electrode 111 are
It is arranged on light shield layer 104.Contact panel 100A can provide touch-control by the first induction electrode 110 and the second induction electrode 111
Function, for example, the first induction electrode 110 can be emission electrode (Tx), and the second induction electrode 111 can be receiving electrode
(Rx).But the contact panel of the present invention is not limited, in another variation, the first induction electrode 110 also can be for receiving electricity
Pole (Rx), and the second induction electrode 111 is emission electrode (Tx).
In present embodiment, the first induction electrode 110 and the second induction electrode 111 are by being arranged at first substrate 102
On the first conductor layer (not illustrating), formed via light shield technique.That is, the first induction electrode 110 and the second induction electrode 111
It is to be formed on first substrate 102 by same layer conductor layer, the first induction electrode 110 formed in it and the second induction electrode
111 are electrically insulated from.In the embodiment of Figure 1A, the first induction electrode 110 and the second induction electrode 111 can have identical
Thickness, and the first induction electrode 110 and the second induction electrode 111 (are that it is contacted with shading towards the surface of first substrate 102
The surface of layer 104) substantially can be located at same level.Furthermore, in the first induction electrode 110 and the second induction electrode
Among 111 configuration relations for first substrate 102, the first induction electrode 110 be can be considered with the second induction electrode 111 and jointly sets
It is placed on first substrate 102.But the contact panel of the present invention is not limited, for example, the first induction electrode 110 and second
The conductor layer that induction electrode 111 also can be respectively different materials is formed, or the first induction electrode 110 and the second induction electrode
111 are arranged at different level.
Insulating barrier 112 covers the first induction electrode 110 and the second induction electrode 111, and at least one pair of through hole 113 is formed at
Insulating barrier 112.In insulating barrier 112, for example, what Figure 1A was painted leads to for a pair through hole 113 difference expose portion the first induction electrode 110
Hole 113 can expose part the first induction electrode 110 positioned at two of the second induction electrode 111 opposite sides respectively.Though additionally,
The through hole 113 that Figure 1A is painted is a pair, but is not limited, and for example, through hole 113 quantity that insulating barrier 112 has can be
Multipair.
In present embodiment, in the technique of insulating barrier 112, insulating barrier 112 can be initially formed and cover the first faradism
Pole 110 and the second induction electrode 111.Then, form through hole 113 in insulating barrier 112, exposed with the through hole 113 passing through formed
First induction electrode 110 is in insulating barrier 112.
Please simultaneously view Figure 1A, Fig. 2A and Fig. 2 B.Fig. 2A illustrates the signal of the part-structure of contact panel 100A of Figure 1A
Figure, the wherein visual angle of Fig. 2A are from the second substrate 126 of Figure 1A towards first substrate 102, and second substrate 126, display medium
Layer 122, electrode layer 116 and insulating barrier 112 are not illustrated in Fig. 2A.Fig. 2 B illustrates the part-structure of contact panel 100A of Figure 1A
Schematic diagram, the visual angle of wherein Fig. 2 B is from the second substrate 126 of Figure 1A towards first substrate 102, and only illustrate insulating barrier 112 with
Bridged electrodes 114 are illustrated with oblique line net bottom in Fig. 2 B, wherein insulating barrier 112.
Bridged electrodes 114 are arranged on insulating barrier 112 so that the second induction electrode 111 is located at bridged electrodes 114 and first
Between substrate 102.Specifically, bridged electrodes 114 in upright projection and second induction electrode 111 of first substrate 102 in the
The upright projection of one substrate 102 is least partially overlapped.In present embodiment, bridged electrodes 114 and the second induction electrode 111 lead to
Cross insulating barrier 112 to be separated by, and for being electrically insulated.On the other hand, the opposite end of bridged electrodes 114 passes through through hole 113, connects respectively
Connect the first induction electrode 110 positioned at the second induction electrode 111 opposite sides.Specifically, the opposite end of bridged electrodes 114
Extend respectively in through hole 113, and contact two the first induction electrodes 110 positioned at the second induction electrode 111 opposite sides, make
Obtain two the first induction electrodes 110 to be electrically connected with by bridged electrodes 114.As Fig. 2A, wherein one end of bridged electrodes 114
Extend in through hole 113, and contact the first induction electrode 110a, and wherein one other end of bridged electrodes 114 extends to through hole
In 113, and contact the first induction electrode 110b.In other words, bridged electrodes 114 are in the way of bridging, and cross over the second faradism
Pole 111, and it is electrically connected with two the first induction electrodes 110 being located at the second induction electrode 111 opposite sides by through hole 113.
Under this configuration of present embodiment, the first induction electrode 110 as emission electrode can pass through bridged electrodes 114
It is electrically connected with, wherein because bridged electrodes 114 cross over the second induction electrode 111 as receiving electrode, therefore the first induction electrode
110 is still to be electrically insulated with the second induction electrode 111, as shown in Figure 1A.In the embodiment of Fig. 2A, the first induction electrode
There is between 110a and 110b the second single induction electrode 111.In detail, from the point of view of the side view of Figure 1A, for electrically connecting
The bridged electrodes 114 meeting the first induction electrode 110a and 110b then span second induction electrode 111 of single.But the present invention
Contact panel be not limited, in other variation, between two the first adjacent induction electrodes 110, multiple can be provided with
Two induction electrodes 111, therefore bridged electrodes 114 then can be had in vertical direction projecting direction with multiple second induction electrodes 111
Overlapping area.In other words, the bridged electrodes 114 for being electrically connected with two the first adjacent induction electrodes 110 may span across multiple
Second induction electrode 111.
In the technique forming bridged electrodes 114, it is on insulating barrier 112 and logical that the second conductor layer (not illustrating) can be first set
In hole 113, then, patterning the second conductor layer is to form bridged electrodes 114 so as to bridged electrodes 114 cross over the second faradism
Pole 111, and the first induction electrode 110 is electrically connected with by through hole 113.
In addition, contact panel 100A can also comprise color blocking layer 108, and wherein color blocking layer 108 comprises color blocking 109a, 109b
With 109c.Color blocking 109a, 109b and 109c are respectively arranged in the pixel region being defined by light shield layer 104, and it respectively can
For the color blocking of different colours, for example, color blocking 109a can be green (G) for red (R), color blocking 109b, and color blocking 109c can be
Blue (B).
Please see Figure 1A, Fig. 2 C and Fig. 2 D again.Fig. 2 C illustrates the schematic diagram of the part-structure of contact panel 100A of Figure 1A,
The visual angle of wherein Fig. 2 C is from the second substrate 126 of Figure 1A towards first substrate 102, and display dielectric layer 122 is not illustrated in figure
2C.That is, Fig. 2 C only illustrates insulating barrier 112, bridged electrodes 114, electrode layer 116, and wherein insulating barrier 112 is not by electrode layer 116
The part covering still is illustrated with oblique line net bottom.Fig. 2 D illustrates the enlarged drawing of the region D of Fig. 2 C, additionally, for convenience of explanation, Fig. 2A
Light shield layer 104 be also illustrated in the way of dotted line in Fig. 2 D with the border of pixel region (corresponding color blocking layer 108).
In present embodiment, electrode layer 116 comprises common electrode area 118 and shield electrode area 120, wherein common electrode
Area 118 is arranged on insulating barrier 112, and shield electrode area 120 is arranged on insulating barrier 112 and covers bridged electrodes 114.This
Outward, in some embodiments, the quantity of common electrode area 118 can be 1, and the quantity in shield electrode area 120 can be with
The quantity of bridged electrodes 114 is identical, and the meaning of wherein " quantity of common electrode area 118 can be 1 " is, in electrode layer 116
Among, the common electrode area 118 beyond shield electrode area 120 is all connected by entity and is combined in one.In present embodiment
In, the common electrode area of electrode layer 116 118 and shield electrode area 120 can be by same conductor layer (not illustrating), via
One light shield technique is formed.For example, (can not paint with setting the 3rd conductor layer in bridged electrodes 114 prior to insulating barrier 112
Show), and this 3rd conductor layer is as electrode layer 116.Then, by patterned electrode layer 116, electrode layer 116 is formed shared
Electrode district 118 and shield electrode area 120, wherein common electrode area 118 and shield electrode area 120 is electrically insulated from, in other words,
There is between common electrode area 118 and shield electrode area 120 gap, separated from one another.Further, since the shared electricity of electrode layer 116
Polar region 118 and shield electrode area 120 are to be formed by patterning same layer conductor layer, therefore the shield electrode area of electrode layer 116
120 in insulating barrier 112 upright projection can fall within the common electrode area 118 of electrode layer 116 in insulating barrier 112 upright projection it
Outward.
Specifically, as shown in Figure 1A, the shield electrode area 120 of electrode layer 116 passes through directly contact bridged electrodes 114,
And bridged electrodes 114 are coated so that bridged electrodes 114 are sandwiched in the shield electrode area 120 of insulating barrier 112 and electrode layer 116
Between.In present embodiment, shield electrode area 120 coats bridged electrodes 114 completely so that bridged electrodes 114 do not expose to the open air
Outside shield electrode area 120, that is, bridged electrodes 114 cannot be contacted with display medium 124.The material of electrode layer 116 can be gold
Belong to oxide, and it can be transparent metal-oxide, such as indium gallium zinc oxide (Indium-Gallium-Zinc Oxide；
IGZO), indium tin oxide (Indium-Tin Oxide；ITO), indium-zinc oxide (Indium-Zinc Oxide；IZO) or its
Combination.Additionally, the material of the first induction electrode 110 and the second induction electrode 111 can be metal material and transparent conductive material
At least one of which of (as metal-oxide), and material in present embodiment for the bridged electrodes 114 also optionally makes
At least one of which with metal material and transparent conductive material (as metal-oxide).
Display dielectric layer 122 is arranged between electrode layer 116 and second substrate 126, and wherein display dielectric layer 122 comprises to show
Show medium 124, wherein display medium 124 can be electrophoretic particle, electrophoretic ink, hydrophilic and hydrophobic medium etc..
In present embodiment, the electrode layer 116 that transparent metal oxide is made has preferably stability, therefore electrode layer
116 shield electrode area 120 can be as the protective layer of bridged electrodes 114 so that bridged electrodes 114 will not be with display dielectric layer
122 display medium 124 directly contact, using prevents from display medium 124 and bridged electrodes 114 from producing not expected interacting work
With.For example, when bridged electrodes 114 are to be made up of metal material, by the guarantor in the shield electrode area 120 of electrode layer 116
Shield acts on, and can prevent bridged electrodes 114 from oxidation or corrosion occurring.On the other hand, due to the shield electrode using electrode layer 116
Area 120 is as the protective layer of bridged electrodes 114, therefore can use letter without being additionally formed layer protective layer in bridged electrodes 114
Change technique the reduces cost of contact panel 100A.For example, in common electrode area 118 and the shield electrode area 120 of electrode layer 116
After formation, display medium material can be then filled between first substrate 102 and second substrate 126, to form display dielectric layer
122.
Furthermore, the common electrode area 118 of electrode layer 116 can be used as common electrode, and the guarantor of electrode layer 116
Shield electrode district 120 can be used as protection bridged electrodes 114 so that electrode layer 116 can pass through separated from one another (or electrically exhausted each other
Edge) common electrode area 118 provide two kinds of functions with shield electrode area 120 simultaneously, and then simplify passing contact panel and need to set
It is equipped with one layer of insulating barrier in order to protect bridged electrodes and one layer of structure as the electrode layer of common electrode.
In addition, in the configuration relation in the shield electrode area 120 of bridged electrodes 114 and electrode layer 116, bridged electrodes
114 is between the shield electrode area 120 of light shield layer 104 and electrode layer 116, and wherein bridged electrodes 114 are in first substrate 102
Upright projection fall within light shield layer 104 in the upright projection of first substrate 102, and the shield electrode area 120 of electrode layer 116 in
The upright projection of first substrate 102 falls within light shield layer 104 in the upright projection of first substrate 102, in other words, bridged electrodes
114th, shield electrode area 120 and light shield layer 104 have overlapping area on upright projection direction.Due to this touch area be provided with many
Layer conductive layer, after applied voltage, then can form electric field and affect the orientation of display medium 124, and then affects touch-control
The display quality of panel.In detail, positioned at the display medium between the shield electrode area 120 of electrode layer 116 and second substrate 126
124 are affected by this touch area and are produced incorrect display picture, then can be covered by light shield layer 104, Jin Erti
Rise the display quality of contact panel 100A.Additionally, among the enlarged drawing that Fig. 2 D is painted, the area in shield electrode area 120 is less than
The area of light shield layer 104.Furthermore, the width W in shield electrode area 120 is (i.e. vertical with the bearing of trend of bridged electrodes 114
Length) be smaller than the width W ' (i.e. the length vertical with the bearing of trend of bridged electrodes 114) of light shield layer 104 so that shading
Floor 104 can cover the display medium 124 corresponding to shield electrode area 120.
Summary, in the structure of contact panel, can by the shield electrode area of electrode layer as bridged electrodes guarantor
Sheath, produces not expected reciprocal action with the display medium preventing display dielectric layer with bridged electrodes, and then extends bridge joint electricity
The service life of pole.Furthermore, due to the shield electrode area protective layer as bridged electrodes of electrode layer is used, therefore in subsequent technique
In, the technique simplifying contact panel reduces cost can be used without being additionally formed layer protective layer in bridged electrodes.This
Outward, because the shield electrode area of bridged electrodes and electrode layer is located at the side of light shield layer, if therefore being located at the shield electrode of electrode layer
Display medium between area and second substrate produces light leak, and this light leak can be covered by light shield layer, to avoid affecting contact panel
Display quality.
Please see Fig. 3, Fig. 4 A and Fig. 4 B again.Fig. 3 illustrates the side-looking of the contact panel 100B of second embodiment of the invention
The visual angle of schematic diagram, wherein Fig. 3 is identical with Figure 1A.Fig. 4 A illustrates the schematic diagram of the part-structure of contact panel 100B of Fig. 3, its
The visual angle of middle Fig. 4 A is from the second substrate 126 of Fig. 3 towards first substrate 102, and only illustrates insulating barrier 112, bridged electrodes 114
With conductive layer 128.In Fig. 4 A, insulating barrier 112 is illustrated with oblique line net bottom.Fig. 4 B illustrates the part of the contact panel 100B of Fig. 3
The schematic diagram of structure, the visual angle of wherein Fig. 4 B is from the second substrate 126 of Fig. 3 towards first substrate 102, and display dielectric layer
122 are not illustrated in Fig. 4 B.That is, Fig. 4 B only illustrates insulating barrier 112, bridged electrodes 114, electrode layer 116 and conductive layer 128, its
The part that middle insulating barrier 112 is not covered by electrode layer 116 is still illustrated with oblique line net bottom.
Present embodiment with least one discrepancy of first embodiment is：Contact panel 100B also comprises conductive layer
128, wherein conductive layer 128 is arranged between insulating barrier 112 and the common electrode area 118 of electrode layer 116, and with electrode layer 116
Common electrode area 118 be electrically connected with, and bridged electrodes 114 are electrically insulated from conductive layer 128.Furthermore, conductive
Layer 128 can be covered by the common electrode area 118 of electrode layer 116 so that conductive layer 128 is sandwiched in insulating barrier 112 and electrode layer 116
Common electrode area 118 between.In present embodiment, conductive layer 128 can fall within light shield layer in the upright projection of body 104
So that conductive layer 128 is not visible along having from first substrate 102 towards the direction of second substrate 126 in 104 upright projection
Property.Additionally, bridged electrodes 114 still cross over the second induction electrode 111, and the first induction electrode is electrically connected with by through hole 113
110.
In present embodiment, when carrying out patterning the step that the second conductor layer (not illustrating) is bridged electrodes 114, can
This second conductor layer is patterned as bridged electrodes 114 and conductive layer 128 simultaneously, the bridged electrodes 114 formed in it with lead
Electric layer 128 is electrically insulated from.That is, bridged electrodes 114 and conductive layer 128 are by same conductor layer, through with along with
Light shield technique is formed after being patterned.But the present invention is not limited, for example, bridged electrodes 114 and conductive layer 128
Also conductor material that can be different is formed.
For the bridged electrodes 114 being formed, bridged electrodes 114 in first substrate 102 planimetric area with
Between the ratio of the planimetric area in first substrate 102 for the light shield layer 104 can be between 0.001 to 0.1.And for being formed
For conductive layer 128, the area of conductive layer 128 is more than the area of bridged electrodes 114, and conductive layer 128 is in first substrate 102
The ratio of the planimetric area in first substrate 102 may be greater than 0 and is less than or equal to planimetric area with light shield layer 104
0.9.The technical staff in the technical field of the invention can according to actual need to by and adjust this ratio, for example, visual induction electrode
Pattern and set this ratio.
In present embodiment, conductive layer 128 can have floating potential.Under this configuration, the common electrode of electrode layer 116
Area 118 can be considered in parallel with conductive layer 128, uses the common electrode area 118 reducing its equivalent resistance and lifting electrode layer 116
Electrical conductivity ability.Due to bridged electrodes 114 and conductive layer 128 be by same conductor layer through with along with light shield technique and shape
Become, therefore the electrical conductivity ability lifting the common electrode area 118 of electrode layer 116 by conductive layer 128 is not required to additionally increase light again
Cover technique, that is, it will not cause added burden to manufacturing cost.On the other hand, technology people in the technical field of the invention
Member according to the resistance of selected common electrode area 118, and can select suitable conductive layer 128 material, for example, can be using electricity
Resistance is less than the material as conductive layer 128 for the metal material of common electrode area 118.
In sum, the electrode layer that the contact panel of the present invention is comprised comprises common electrode area and shield electrode area, its
The shield electrode area of middle electrode layer can be as the protective layer of bridged electrodes, to prevent bridged electrodes and the display of display dielectric layer to be situated between
Matter produces not expected reciprocal action, and then extends the service life of bridged electrodes.Due to the shield electrode area using electrode layer
As the protective layer of bridged electrodes, therefore in subsequent technique, can use without being additionally formed layer protective layer in bridged electrodes
Simplify technique the reduces cost of contact panel.Additionally, in the step forming bridged electrodes, also can synchronously pass through same leading
Body layer forms bridged electrodes and conductive layer, and wherein conductive layer can be in parallel with the common electrode area of electrode layer, and mat lifts electrode layer
Common electrode area electrical conductivity ability.Due to bridged electrodes and conductive layer be by same conductor layer through with along with light shield work
Skill and formed, therefore be not required to additionally increase again light shield technique.
Although the present invention is open as above with numerous embodiments, so it is not limited to the present invention, any this area
Technical staff, without departing from the spirit and scope of the present invention, when can make various variations and retouching, the therefore protection of the present invention
Scope ought be defined depending on appended as defined in claim.
Claims (10)
1. a kind of contact panel is it is characterised in that comprise：
One first substrate and a second substrate, wherein said first substrate is arranged at the side of described second substrate；
Multiple first induction electrodes and one second induction electrode, are arranged on described first substrate, and are located at described second substrate
And described first substrate between；
One insulating barrier, covers the plurality of first induction electrode and described second induction electrode, and a pair of through hole be formed at described
Insulating barrier；
One bridged electrodes, are arranged on described insulating barrier, and wherein said bridged electrodes cross over described second induction electrode, and pass through
Described to through hole be electrically connected with the plurality of first induction electrode wherein both；
One electrode layer, comprises a common electrode area and a shield electrode area, wherein said common electrode area is arranged at described insulation
On layer, described shield electrode area covers described bridged electrodes, and described common electrode area is electrical each other with described shield electrode area
Insulation；And
One display dielectric layer, is arranged between described electrode layer and described second substrate.
2. contact panel as claimed in claim 1 it is characterised in that described shield electrode area directly contact and coat described bridge
Receiving electrode.
3. contact panel as claimed in claim 1 is it is characterised in that also comprise：
One light shield layer, is arranged on described first substrate, and described bridged electrodes are located at described light shield layer and described shield electrode
Between area so that described bridged electrodes in described first substrate upright projection fall vertical in first substrate in described light shield layer
In projection.
4. contact panel as claimed in claim 3 is it is characterised in that described shield electrode area is vertical in described first substrate
Projection falls in described light shield layer in the upright projection of described first substrate.
5. contact panel as claimed in claim 1 is it is characterised in that also comprise：
One conductive layer, is arranged at described insulating barrier, and is located between described insulating barrier and described common electrode area, wherein said bridge
Receiving electrode is electrically insulated from described conductive layer.
6. contact panel as claimed in claim 5 is it is characterised in that also comprise a light shield layer, and described light shield layer is arranged at
On described first substrate so that described bridged electrodes and described conductive layer be located at respectively described light shield layer and described electrode layer it
Between, wherein said bridged electrodes are vertical in described first substrate with described light shield layer in the planimetric area of described first substrate
The ratio of straight projected area is between 0.001 to 0.1.
7. contact panel as claimed in claim 5 is it is characterised in that also comprise a light shield layer, and described light shield layer is arranged at
On described first substrate so that described bridged electrodes with and described conductive layer be located at respectively described light shield layer and described electrode layer it
Between, wherein said conductive layer is vertical in described first substrate with described light shield layer in the planimetric area of described first substrate
The ratio of the area of projection is more than 0 and to be less than or equal to 0.9.
8. contact panel as claimed in claim 5 is it is characterised in that described conductive layer has a floating potential.
9. a kind of manufacture method of contact panel is it is characterised in that comprise：
Form multiple first induction electrodes and one second induction electrode on a first substrate；
Form an insulating barrier and cover the plurality of first induction electrode and described second induction electrode；
Form a pair of through hole in described insulating barrier, and form the described position to through hole and correspond to the plurality of first induction electrode
Wherein both；
Arrange bridged electrodes on described insulating barrier and described in through hole, and described bridged electrodes by described to through hole
Be electrically connected with the plurality of first induction electrode wherein both；And
One common electrode area of patterning formation one electrode layer is with a shield electrode area in described insulating barrier and described bridged electrodes
On, it is provided with described common electrode area on described insulating barrier, the described shield electrode area arranging described electrode layer is in described
Bridged electrodes, and the described common electrode area of described electrode layer is electrically insulated from described shield electrode area.
10. contact panel as claimed in claim 9 manufacture method it is characterised in that arrange described bridged electrodes step
Also comprise：
Form described bridged electrodes and a conductive layer, wherein said bridged electrodes are electrically insulated from described conductive layer simultaneously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105117222 | 2016-06-01 | ||
| TW105117222A TWI581158B (en) | 2016-06-01 | 2016-06-01 | Touch panel and method for manufacturing the same |
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| Publication Number | Publication Date |
|---|---|
| CN106406607A true CN106406607A (en) | 2017-02-15 |
| CN106406607B CN106406607B (en) | 2019-04-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610784684.8A Expired - Fee Related CN106406607B (en) | 2016-06-01 | 2016-08-31 | Touch panel and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106406607B (en) |
| TW (1) | TWI581158B (en) |
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| CN108241456A (en) * | 2018-02-01 | 2018-07-03 | 业成科技（成都）有限公司 | Touch-control sensing module and preparation method thereof and apply its touch-control display panel |
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Also Published As
| Publication number | Publication date |
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| TW201743169A (en) | 2017-12-16 |
| CN106406607B (en) | 2019-04-05 |
| TWI581158B (en) | 2017-05-01 |
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