CN104007862B - Contact panel - Google Patents
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- CN104007862B CN104007862B CN201310060182.7A CN201310060182A CN104007862B CN 104007862 B CN104007862 B CN 104007862B CN 201310060182 A CN201310060182 A CN 201310060182A CN 104007862 B CN104007862 B CN 104007862B
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- layer
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- contact panel
- shielding layer
- perceptual masking
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Abstract
The present invention provides a kind of contact panel, in order to provide touching signals.Contact panel includes substrate, First look shielding layer, electrode layer, metal material layer and the second perceptual masking layer.Substrate has surface, and First look shielding layer is arranged at least one marginal area on surface.One of electrode layer is arranged at the viewing area of adjacent edge region on surface, and another portion of electrode layer covers at least some of of First look shielding layer.Metal material layer is arranged at marginal area, and electrically conducts with electrode layer.Second perceptual masking layer is arranged at marginal area and is stacked and placed on First look shielding layer.Described another part of electrode layer is folded between First look shielding layer and the second perceptual masking layer.
Description
Technical field
The invention relates to a kind of contact panel, and in particular to a kind of touch surface with perceptual masking layer
Plate.
Background technology
In recent years, along with scientific and technological industry is the most flourishing, electronic installation such as notebook computer (Notebook is called for short NB),
The products such as panel computer (Tablet PC) and smart mobile phone (Smart Phone) have frequently occurred in daily life.Its
In, section electronics has compact characteristic, and user can be operated with hand-held and be convenient for carrying.Electronics fills
The kenel put is more and more polynary with use function, and convenience and practicality make these electronic installations more popular, can be for difference
Purposes uses.Therefore, user can be to be hold by one hand this type of electronic installation, and via touching or pressing position the behaviour of electronic installation
Make the keyboard in face or contact panel and operate electronic installation.
This type of electronic installation arranges electrode layer in the viewing area of contact panel, to sense touch event.Work as contact panel
When being touched by object or be close, electrode layer corresponding can produce touching signals.Around the viewing area of contact panel (non-aobvious
Show region), set up and put one layer of perceptual masking layer, so that the circuit around contact panel is hidden.The perceptual masking of non-display area
Layer needs have enough thickness, to avoid affecting outward appearance.The color of perceptual masking layer is the brightest (such as Lycoperdon polymorphum Vitt or white), and it is thick
Spend relatively the thickest.Additionally, for the function increasing the input of operating system touch-control, also have at non-display area and arrange electrode layer
Demand so that non-display area also be able to provide touch sensing signal.But, the surface of the perceptual masking layer of non-display area
Need that there is difference in height with the surface of viewing area.Surface and the surface of viewing area of perceptual masking layer it is arranged at when electrode layer
Time, the difference in height between perceptual masking layer and viewing area is easily caused electrode layer and breaks.
Summary of the invention
The present invention provides a kind of contact panel, it is possible to reduces electrode layer and covers the height between perceptual masking layer and viewing area
It is poor to spend, to promote yield.
The contact panel of the present invention, in order to provide touching signals.Contact panel includes substrate, First look shielding layer, electricity
Pole layer, metal material layer and the second perceptual masking layer.Substrate has surface.First look shielding layer is arranged at least the one of surface
On marginal area.One of electrode layer is arranged at the viewing area of adjacent edge region on surface, and another portion of electrode layer is covered
Lid First look shielding layer at least some of.When contact panel is touched by object or be close, electrode layer correspondence produces touch-control
Signal.Metal material layer is arranged at marginal area, and electrically conducts with electrode layer.Metal material layer is in order to transmit touching signals
To driving element.Second perceptual masking layer is arranged at marginal area and is stacked and placed on First look shielding layer.Electrode layer described
Another portion is folded between First look shielding layer and the second perceptual masking layer.
Based on above-mentioned, in the contact panel of the present invention, perceptual masking layer is the setting of multilamellar.When First look shielding layer
After being arranged at marginal area, electrode layer can be arranged on viewing area and First look shielding layer, regards second the most again
Feel that shielding layer is covered on electrode layer.Therefore, the contact panel of the present invention be not only able to maintain perceptual masking layer thickness with
Avoid affecting outward appearance, and the difference in height of electrode layer covering viewing area and marginal area can be lowered, to avoid because of difference in height
Excessive electrode layer is caused to break.
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing to make in detail
Carefully it is described as follows.
Accompanying drawing explanation
Figure 1A is the schematic diagram of the contact panel of one embodiment of the invention；
Figure 1B is the profile of the contact panel I-I along the line of Figure 1A；
Fig. 1 C is the explosive view of Figure 1B；
Fig. 1 D is the schematic diagram after the contact panel of Figure 1A arranges First look shielding layer；
Fig. 2 A is the profile of the contact panel of another embodiment of the present invention；
Fig. 2 B is the explosive view of Fig. 2 A；
Fig. 2 C is the schematic diagram after the contact panel of Fig. 2 A arranges First look shielding layer；
Fig. 2 D to Fig. 2 H is the schematic diagram that the ink point P of Fig. 2 A arranges gradually layer；
Fig. 3 A is the profile of the contact panel of yet another embodiment of the invention；
Fig. 3 B is the explosive view of Fig. 3 A；
Fig. 4 A is the profile of the contact panel of further embodiment of this invention；
Fig. 4 B is the explosive view of Fig. 4 A；
Fig. 4 C is the schematic diagram after the contact panel of Fig. 4 A arranges First look shielding layer；
Fig. 5 A is the profile of the contact panel of a present invention more embodiment；
Fig. 5 B is the explosive view of Fig. 5 A.
Description of reference numerals:
100,100a, 200,300,400: contact panel；
110,210,310,410: substrate；
112: surface；
120,120a, 220,320,420: First look shielding layer；
130,230,330,430: electrode layer；
132: detection circuit；
132a: diamond shaped electrode；
132b: connecting line；
140,240,340,440: metal material layer；
142: metal wire；
150,150a, 250,350,450: the second perceptual masking layer；
160,260: the three perceptual masking layer；
D: viewing area；
E: marginal area；
P: ink point.
Detailed description of the invention
Figure 1A is the schematic diagram of the contact panel of one embodiment of the invention.Figure 1B is the contact panel I-I along the line of Figure 1A
Profile.Fig. 1 C is the explosive view of Figure 1B.Refer to Figure 1A to 1C, the contact panel 100 of the present embodiment, in order to provide touch-control
Signal.Contact panel 100 includes that substrate 110, First look shielding layer 120, electrode layer 130, metal material layer 140 and second regard
Feel shielding layer 150.Substrate 110 has surface 112.First look shielding layer 120 is arranged at least one marginal area on surface 112
On E.
After completing the arranging of First look shielding layer 120, then electrode layer 130 is arranged at the surface 112 of substrate 110
On.Wherein, first of electrode layer 130 is arranged at the viewing area D of adjacent edge region E on surface 112, and electrode layer 130
Second covering First look shielding layer 120 at least some of.When contact panel 100 is touched by object or is close, electricity
Pole layer 130 corresponding can produce touching signals.In the present embodiment, the material of electrode layer 130 can be electrically conducting transparent material or
It is translucent conductive material, such as indium tin oxide (indium-tin oxide is called for short ITO) or other conductive material.For
The thickness avoiding perceptual masking layer 120 is blocked up and causes electrode layer 130 to break, and the thickness of perceptual masking layer 120 can be 10 μ
M to 20 μm.In other embodiments, the thickness of perceptual masking layer 120 can be according to the material light transmission of perceptual masking layer and electricity
The material characteristic of pole layer 130 determines.
After completing the arranging of electrode layer 130, then the First look that metal material layer 140 is arranged at marginal area E hides
Cover on layer 120, and electrically conduct with electrode layer 130.In the present embodiment, the material of metal material layer 140 can be any leading
Electricity material.Touching signals can be transferred to drive element (not shown) by metal material layer 140.
After completing the arranging of metal material layer 140, then the second perceptual masking layer 150 is arranged at marginal area E and folds
It is placed on First look shielding layer 120.It is to say, the second perceptual masking layer 150 is covered in described second of electrode layer 130
Divide and on metal material layer 140.Therefore, the described Part II of electrode layer 130 and metal material layer 140 are just folded in the
Between one perceptual masking layer 120 and the second perceptual masking layer 150.
In the present embodiment, contact panel 100 is e.g. arranged on the screen of mobile phone, and the display of contact panel 100
Region D can be as the interface of sensing touching.On the marginal area E of viewing area D, be provided with perceptual masking layer 120,
150 to cover the circuit (e.g. connecting the metal material layer 140 of electrode layer 130) beyond sensing region in contact panel 100
Lid, to keep attractive in appearance.For example, the perceptual masking layer being configured at marginal area E can be the ink of white.Because white oil
The shielding of ink is poor, and in order to improve the effect of perceptual masking, perceptual masking layer can be multi-layer coated, first as shown in Figure 1B
Perceptual masking layer 120 and the second perceptual masking layer 150.
Therefore, the contact panel 100 of the present embodiment is not only able to maintain the thickness of perceptual masking layer 120,150 to avoid shadow
Ring outward appearance, and can be dropped in the difference in height of the electrode layer 130 of viewing area D and both electrode layers 130 of edge region E
Low, to avoid causing electrode layer 130 to break because difference in height is excessive.
Fig. 1 D is the schematic diagram after the contact panel of Figure 1A arranges First look shielding layer.Refer to Fig. 1 C and Fig. 1 D, the
One perceptual masking layer 120 and the second perceptual masking layer 150 are arranged at marginal area E, cover part and the metal of electrode layer 130
Material layer 140.Electrode layer 130 is to be staggered by a plurality of detection circuit 132 to constitute.Each detection circuit 132 such as includes
A connecting line 132b is further included between multiple diamond shaped electrode 132a, and each diamond shaped electrode 132a.Electrode layer 130 covers
The mode of First look shielding layer 120, can be that the diamond shaped electrode 132a of part is covered in First look shielding layer 120.So
And, the present invention is not any limitation as at this.In other unshowned embodiments of the present invention, electrode layer covers First look shielding layer
Mode can also be that only connecting line is covered in First look shielding layer, or half or whole diamond shaped electrode be connected
Line is covered in First look shielding layer.
Fig. 2 A is the profile of the contact panel of another embodiment of the present invention.Fig. 2 B is the explosive view of Fig. 2 A.Fig. 2 C is
The contact panel of Fig. 2 A arranges the schematic diagram after First look shielding layer.In fig. 2 c, in order to clearly illustrate the gold of contact panel
Belong to material layer 140, therefore dotted line is omitted with the ink point P of exterior domain and do not illustrates gradually layer.Fig. 2 A to Fig. 2 C illustrated embodiment can
Analogize with the related description with reference to Figure 1B to Fig. 1 D.In place of being different from contact panel 100 shown in Figure 1B to Fig. 1 D, it is Fig. 2 A
Perceptual masking layer 120a, 150a to contact panel 100a shown in Fig. 2 C are configured with gradually layer portion.Refer to Fig. 2 A to Fig. 2 C, arrange
The gradually reason in layer portion, for being according to material characteristic, electrode layer 130 may be the most fully transparent.In order to avoid electrode layer 130
Excessive with perceptual masking layer 120a, 150a aberration.First look shielding layer 120a and the second perceptual masking layer 150a can be gradually layer
Ground is arranged, to reduce the aberration of electrode layer 130 and First look shielding layer 120a.In the present embodiment, First look shielding layer
The gradually layer of 120a and the second perceptual masking layer 150a is in opposite direction.For example, in the present embodiment, First look shielding layer
The gradually layer direction of 120a is thin out from the position away from viewing area D toward the direction near viewing area D.In other words, near aobvious
Show that the First look shielding layer 120a color of region D is shallower so that the aberration of electrode layer 130 and First look shielding layer 120a is relatively
Inconspicuous.Relatively, covering the second perceptual masking layer 150a of electrode layer 130 and First look shielding layer 120a, it is near aobvious
Show that the color of region D is deeper, so as to complementary with the gradually layer pattern of First look shielding layer 120a so that marginal area E's
Color is more consistent.
In fig. 2, First look shielding layer 120a and the gradually layer of the second perceptual masking layer 150a, can be by multiple oil
Ink dot P is constituted, and the width of each ink point P can be that 50 μm are to 100 μm.In the present embodiment, perceptual masking layer 120a, 150a energy
Enough distributions by adjustment ink point P and arrangement mode are to produce the effect of gradually layer.Such as, Fig. 2 D to Fig. 2 H is the ink of Fig. 2 A
Point P arranges gradually the different of layer and implements example schematic.Shown in Fig. 2 A gradually in layer, distribution and the arrangement mode of ink point P are permissible
It is dispersion point type (as shown in Figure 2 D), or random dispersion graphic (as shown in Figure 2 E), or GTG distributing is (such as Fig. 2 F institute
Show), or gridiron pattern point type (as shown in Figure 2 G), or gridiron pattern point type and the distributed combination of GTG (as illustrated in figure 2h).
But, the present invention is not limiting as size and the arrangement mode of ink point P at this.
Additionally, First look shielding layer 120a and the second perceptual masking layer 150a is all light tone (such as white etc.) ink,
And be that gradually layer ground is arranged.In order to avoid causing white ink thickness deficiency to affect outward appearance because of gradually layer, contact panel 100a further includes
At least one the 3rd perceptual masking layer 160, is arranged on the second perceptual masking layer 150a.In the present embodiment, First look
The gross thickness of shielding layer 120a, the second perceptual masking layer 150a and the 3rd perceptual masking layer 160 is about between 40 μm to 50 μm.Lift
For example, the thickness of First look shielding layer 120a can be 10～20 μm, and the second perceptual masking layer 150a is with the 3rd perceptual masking
The thickness of layer 160 can adjust the most on demand.But, the present invention is not any limitation as at this.In other embodiments, if first regards
Feel that the gross thickness of shielding layer 120 and the second perceptual masking layer 150 the most enough reaches perceptual masking effect, then the 3rd perceptual masking layer
160 can be omitted according to product design demand.
Please continue to refer to Fig. 2 A to Fig. 2 C, metal material layer 140 electrically conducts with electrode layer 130, when electrode layer 130 senses
To (e.g. the finger of user is near electrode layer 130) during touch event, metal material layer 140 can be by electrode layer 130
Touching signals is transferred to the driving element (not shown) of contact panel 100a.In the present embodiment, metal material layer 140 is arranged at
Between First look shielding layer 120a and the second perceptual masking layer 150a.Metal material layer 140 includes many metal line 142, and
The live width of each metal wire 142 e.g. between 5 μm to 30 μm.
But, the present invention is not limiting as the position that metal material layer is arranged.Hereinafter again for an embodiment explanation, Fig. 3 A is this
The profile of the contact panel of invention another embodiment.Fig. 3 B is the explosive view of Fig. 3 A.Refer to Fig. 3 A and Fig. 3 B, Fig. 3 A's
In contact panel 200, First look shielding layer 220 is arranged at least one marginal area E of substrate 210.Regard completing first
Feel after the arranging of shielding layer 220, then electrode layer 230 is arranged on substrate 210.After completing the arranging of electrode layer 230, then will
Second perceptual masking layer 250 is arranged at marginal area E and is stacked and placed on First look shielding layer 220.It is to say, the second vision
Shielding layer 250 is covered on electrode layer 230.Therefore, the part of electrode layer 230 is just folded in First look shielding layer 220
And between the second perceptual masking layer 250.After completing the arranging of the second perceptual masking layer 250, then metal material layer 240 is arranged
On the second perceptual masking layer 250 of marginal area E.
Other implementation details of Fig. 3 A and Fig. 3 B illustrated embodiment are referred to related description and the figure of Figure 1B Yu Fig. 1 C
The related description of 2A with Fig. 2 B and analogize.Fig. 3 A and Fig. 3 B illustrated embodiment and Fig. 2 A and the difference of Fig. 2 B illustrated embodiment,
It is disposed on the second perceptual masking layer 250 in metal material layer 240.Although metal material layer 240 shown in Fig. 3 A and Fig. 3 B
Being folded between the second perceptual masking layer 250 and the 3rd perceptual masking layer 260, electrode layer 230 is then folded in first and regards
Feel between shielding layer 220 and the second perceptual masking layer 250, but metal material layer 240 can pass through the second perceptual masking layer 250
Each ink point P between gap and electrically conduct with electrode layer 230.
In addition.The present invention is also not intended to the gradually layer direction of perceptual masking layer.Such as, Fig. 4 A is further embodiment of this invention
The profile of contact panel.Fig. 4 B is the explosive view of Fig. 4 A.Fig. 4 C is after the contact panel of Fig. 4 A arranges First look shielding layer
Schematic diagram.In figure 4 c, in order to clearly illustrate the metal material layer 340 of contact panel, therefore by dotted line with the ink of exterior domain
Point P omits and does not illustrate gradually layer.Fig. 4 A to Fig. 4 C illustrated embodiment is referred to the related description of Figure 1B to Fig. 1 D, Fig. 2 A to figure
Related description and the related description of Fig. 3 A to Fig. 3 B of 2C and analogize.Refer to Fig. 4 A to Fig. 4 C, in the present embodiment, touch-control
Panel 300 includes that substrate 310, First look shielding layer 320, electrode layer 330, metal material layer 340 and the second vision hide equally
Cover layer 350, and First look shielding layer 320 and the second perceptual masking layer 350 are similarly and gradually arrange layer, and gradually layer direction phase
Instead.But, in figure 4b, the gradually layer direction of First look shielding layer 320 is from the position near viewing area D toward away from display
The direction of region D is thin out, and in other words, First look shielding layer 320 color away from viewing area D is shallower.
It addition, the present invention is also not intended to the ratio that gradually layer effect is shared in perceptual masking layer.Fig. 5 A is the present invention more
The profile of the contact panel of embodiment.Fig. 5 B is the explosive view of Fig. 5 A.Fig. 5 A to Fig. 5 B illustrated embodiment is referred to Figure 1B
Related description, the related description of Fig. 2 A to Fig. 2 C, the related description of Fig. 3 A to Fig. 3 B and the phase of Fig. 4 A to Fig. 4 C to Fig. 1 D
Close explanation and analogize.Refer to Fig. 5 A and Fig. 5 B, in the present embodiment, contact panel 400 includes substrate 410 equally, first regards
Feel shielding layer 420, electrode layer 430, metal material layer 440 and the second perceptual masking layer 450.With touch surface shown in Fig. 3 A to Fig. 3 B
Unlike plate 200, the gradually layer effect of First look shielding layer 420 and the second perceptual masking layer 450 is not only arranged at marginal zone
Territory E is near the annular section of viewing area D, and is more covered with whole marginal area E.In other words, gradually layer effect in perceptual masking layer
Shared scale, it is possible to adjusting according to design requirement, the present invention is not any limitation as at this.
In sum, in the contact panel of the present invention, perceptual masking layer is the setting of multilamellar, when First look shielding layer
After being arranged at marginal area, electrode layer just can be arranged on viewing area and First look shielding layer, the most again by second
Perceptual masking layer is covered on electrode layer.Additionally, First look shielding layer and the second perceptual masking layer more can use gradually layer
Design, to reduce the difference of perceptual masking layer and electrode layer color.Therefore, the contact panel of the present invention is not only able to maintenance and regards
The thickness of feel shielding layer is to avoid affecting outward appearance, and the difference in height of electrode layer covering viewing area and marginal area can be dropped
Low, to avoid causing electrode layer to break because difference in height is excessive.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a contact panel, in order to provide a touching signals, it is characterised in that including:
One substrate, has a surface；
One First look shielding layer, is arranged at least one marginal area on described surface；
One electrode layer, of described electrode layer is arranged at a viewing area of adjacent described marginal area on described surface, and
Another portion of described electrode layer covers at least some of, wherein when described contact panel is by a thing of described First look shielding layer
When body is touched or be close, described electrode layer correspondence produces described touching signals；
One metal material layer, is arranged at described marginal area, and electrically conducts with described electrode layer, wherein said metal material layer
In order to described touching signals to be transferred to a driving element；And
One second perceptual masking layer, is arranged at described marginal area and is stacked and placed on described First look shielding layer, wherein said
Described another part of electrode layer is folded between described First look shielding layer and described second perceptual masking layer, wherein said
First look shielding layer and described second perceptual masking layer are that gradually layer ground is arranged, and described First look shielding layer and described second
The gradually layer of perceptual masking layer is in opposite direction.
Contact panel the most according to claim 1, it is characterised in that serve as reasons in the gradually layer direction of described First look shielding layer
Position away from described viewing area is thin out toward the direction near described viewing area.
Contact panel the most according to claim 1, it is characterised in that serve as reasons in the gradually layer direction of described First look shielding layer
Thin out toward the direction away from described viewing area near the position of described viewing area.
Contact panel the most according to claim 1, it is characterised in that described First look shielding layer and described second vision
The gradually layer of shielding layer is made up of multiple ink points, and the width of each described ink point is that 50 μm are to 100 μm.
Contact panel the most according to claim 4, it is characterised in that described First look shielding layer and described second vision
The distribution of the plurality of ink point of shielding layer and arrangement mode are dispersion point type, random dispersion is graphic, GTG distributing or chess
Dish lattice point formula, or gridiron pattern point type and the distributed combination of GTG.
Contact panel the most according to claim 1, it is characterised in that also include one the 3rd perceptual masking layer, be arranged at institute
State on the second perceptual masking layer.
Contact panel the most according to claim 1, it is characterised in that described metal material layer is arranged at described First look
Between shielding layer and described second perceptual masking layer.
Contact panel the most according to claim 1, it is characterised in that described metal material layer is arranged at described second vision
On shielding layer.
Contact panel the most according to claim 1, it is characterised in that described First look shielding layer and described second vision
The material of shielding layer is white ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060182.7A CN104007862B (en) | 2013-02-26 | 2013-02-26 | Contact panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060182.7A CN104007862B (en) | 2013-02-26 | 2013-02-26 | Contact panel |
Publications (2)
| Publication Number | Publication Date |
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| CN104007862A CN104007862A (en) | 2014-08-27 |
| CN104007862B true CN104007862B (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310060182.7A Active CN104007862B (en) | 2013-02-26 | 2013-02-26 | Contact panel |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016197293A (en) | 2015-04-02 | 2016-11-24 | 株式会社ジャパンディスプレイ | Display with sensor |
| CN105022543A (en) * | 2015-07-14 | 2015-11-04 | 山东华芯富创电子科技有限公司 | OGS (One Glass Solution) touch screen structure and electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305073B1 (en) * | 1999-12-29 | 2001-10-23 | Gm Nameplate, Inc. | One-sided electrode arrangement on an intermediate spacer for a touchscreen |
| CN1918538A (en) * | 2003-12-15 | 2007-02-21 | 3M创新有限公司 | Wiring harness and touch sensor incorporating same |
| TWM428424U (en) * | 2011-10-13 | 2012-05-01 | Tpk Touch Solutions Xiamen Inc | Touch devices |
| TWM446367U (en) * | 2012-03-01 | 2013-02-01 | Tpk Glass Solutions Xiamen Inc | Touch device |
-
2013
- 2013-02-26 CN CN201310060182.7A patent/CN104007862B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6305073B1 (en) * | 1999-12-29 | 2001-10-23 | Gm Nameplate, Inc. | One-sided electrode arrangement on an intermediate spacer for a touchscreen |
| CN1918538A (en) * | 2003-12-15 | 2007-02-21 | 3M创新有限公司 | Wiring harness and touch sensor incorporating same |
| TWM428424U (en) * | 2011-10-13 | 2012-05-01 | Tpk Touch Solutions Xiamen Inc | Touch devices |
| TWM446367U (en) * | 2012-03-01 | 2013-02-01 | Tpk Glass Solutions Xiamen Inc | Touch device |
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| Publication number | Publication date |
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| CN104007862A (en) | 2014-08-27 |
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