CN104951152A - Capacitive touch display device with noise offset function - Google Patents
Capacitive touch display device with noise offset function Download PDFInfo
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- CN104951152A CN104951152A CN201410119590.XA CN201410119590A CN104951152A CN 104951152 A CN104951152 A CN 104951152A CN 201410119590 A CN201410119590 A CN 201410119590A CN 104951152 A CN104951152 A CN 104951152A
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Abstract
The invention provides a capacitive touch display device with the noise offset function. The capacitive touch display device with the noise offset function comprises a display panel and a capacitive touch sensor. The capacitive touch sensor is arranged on the display panel and comprises a plurality of sensing lines, a plurality of driving lines, a plurality of first signal lines, a plurality of second signal lines and noise offset lines. The sensing lines are arranged at intervals and are parallel to the first direction. The driving lines are arranged at intervals and are parallel to the second direction. The first signal lines are arranged on the outer sides of the driving lines. The second signal lines are arranged on the outer sides of the sensing lines. Some first signal lines or some second signal lines are adopted as the noise offset lines which are used for receiving noise coming from the display panel.
Description
Technical field
The present invention relates to a kind of capacitive touch control display device of tool noise payment function, refer to a kind of can effectively obtaining from the next complete noise information of display panel especially, and effectively can completely cut off the noise come from display panel causes the tool noise payment function of noise capacitive touch control display device to capacitance touching control sensor.
Background technology
Please also refer to Figure 1A and Figure 1B, wherein Figure 1A shows the vertical view of the capacitive touch control display device of a prior art, and Figure 1B shows the sectional view of capacitive touch control display device along profile line X-X ' of Figure 1A.Capacitive touch control display device 10 shown in Figure 1B such as can be a mutual inductance type (mutual capacitance type) capacitance touching control display device.Generally speaking, capacitive touch control display device 10 can comprise capacitance touching control sensor 11 and display panel 12, and wherein capacitance touching control sensor 11 is arranged on display panel 12.Therefore, in figure ia, it is looked from vertical view, only draw the capacitance touching control sensor 11 of the capacitive touch control display device 10 shown in Figure 1B, this is because display panel 12 is arranged at the below (as shown in Figure 1B) of capacitance touching control sensor 11, therefore cannot see display panel 12 at Figure 1A.Display panel 12 is such as but not limited to can be liquid crystal display (Liquid Crystal Display, LCD) panel or Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) panel.
Capacitance touching control sensor 11 includes many drive wires intersected each other (driving line) DA1 ~ DA9 and sense wire (sensing line) SA1 ~ SA9, and in order to increase sensing efficiency, better those drive wires DA1 ~ DA9 that allows perpendiculars to one another perpendicular array with those sense wires SA1 ~ SA9, wherein drive wire DA1 ~ DA9 and sense wire SA1 ~ SA9 by vertical view depending on the part of overlap each other (overlap) be referred to as node (meaning and N11, N12 ..., N98, N99).Capacitance touching control sensor 11 can adopt mutual inductance type (mutual capacitance type) touch-control sensing method to sense the touch point be formed on display panel 12, but not as limit.Each node on the capacitance touching control sensor 11 of so-called mutual inductance type (mutual capacitance type) capacitance touching control sensing method and sense capacitance formula touch control display apparatus 10 (meaning and N11, N12 ..., N98, N99) capacitance change.Suppose that capacitance touching control sensor 11 includes J drive wire and K sense wire, then it can be formed with (J x K) individual node.For example, as shown in Figure 1A, capacitance touching control sensor 11 includes 9 drive wire DA1 ~ DA9 and 9 sense wire SA1 ~ SA9, therefore it is formed with 81 node N11, N12, N13 ..., N98, N99 altogether.Because each drive wire DA1 ~ DA9 all can provide a driving voltage and crossing with 9 sense wire SA1 ~ SA9, therefore each node (meaning and N11, N12 ..., N98, N99) all can be coupled out an Inductance and Capacitance, and each Inductance and Capacitance all can be coupled out sensing voltage.When display panel 12 is touched, the Inductance and Capacitance corresponding to the node of touching place in capacitance touching control sensor 11 will change thereupon, and its sensing voltage be coupled out also can change, therefore it is touched that this characteristic can be utilized to go to judge whether display panel 12 has.
Please continue to refer to Figure 1B.As shown in Figure 1B, capacitance touching control sensor 11 comprises a substrate 14.Sense wire SA1 ~ the SA9 of capacitance touching control sensor 11 can be arranged on the side 141 of substrate 14, and drive wire DA1 ~ DA9 can be arranged on the opposite side 142 of substrate 14.In this structure, drive wire DA1 ~ DA9 and sense wire SA1 ~ SA9 is not in direct contact with one another, but each node (meaning and N11, N12 ..., N98, N99) place cross over substrate 14 be capacitively coupled each other.Such as, a drive wire (such as: DA9) and a sense wire (such as: SA9) an overlapping point (by Figure 1A vertical view depending on " intersect " each other or hithermost position) node (such as: N99) as shown in FIG. 1A and 1B can be formed.
In capacitance touching control sensor 11, for example, drive wire DA9 and sense wire SA9 at node N99 place coupled to each other go out an Inductance and Capacitance.That is, the drive wire DA9 of capacitance touching control sensor 11 because current potential is each other not identical, therefore can produce the magnetic line of force (as shown in Figure 1B) at node N99 place with sense wire SA9.Please refer to Fig. 2, its display is according to a decomposing schematic representation of Figure 1B.According to Fig. 2, where can understand the noise come from display panel 12 will as caused noise to capacitance touching control sensor 11.Generally speaking, when display panel 12 is engaged to capacitance touching control sensor 11, during to form capacitive touch control display device 10, the noise come from display panel 12 will cause noise to capacitance touching control sensor 11.Compared to the capacitance touching control sensor (meaning and sense wire and drive wire are all arranged at the capacitance touching control sensor of the same side of substrate 14) of single layer structure, the noise that double-deck capacitance touching control sensor 11 shown in Figure 1B and Fig. 2 can utilize drive wire DA1 ~ DA9 to cause capacitance touching control sensor 11 with the isolated noise come from display panel 12 (such as: as shown in Figure 2, the noise A be positioned at below drive wire DA1 is isolated, thus can not be coupled out Inductance and Capacitance with sense wire SA9).
But, between two adjacent drive wires (such as: drive wire DA1 and DA2 or drive wire DA8 and DA9), owing to there is gap, the sense wire (such as: SA9) still having noise B and the capacitance touching control sensor 11 come from display panel 12 is coupled out Inductance and Capacitance (such as: as shown in Figure 2, noise B is had to pass through from the gap between drive wire DA1 and DA2 or drive wire DA8 and DA9), thus noise is caused to capacitance touching control sensor 11.Therefore, in the capacitive touch control display device 10 of this prior art, the noise that the noise come from display panel 12 causes capacitance touching control sensor 11 cannot still be avoided.
In order to solve the defect of above-mentioned prior art, there is prior art can add ground connection (grounding) screen layer (shielding layer) of complete one deck between display panel and capacitance touching control sensor, with the isolated noise come from display panel, but increase by a flood screen layer except increasing material cost, the reproduced image resolution of display panel also can be made influenced.
Moreover, in order to solve the defect of above-mentioned prior art, following U.S. Publication or publication relevant with the noise how detecting display panel, provide reference at this: US8493356, US8497844, US20060103635, US20110242045, US20120001859, US20120306803, US20120326992, US20130057337, US20130069904, US20130147755, US20130169585, US20130176233 and US20130222290.But these prior aries all effectively cannot solve the defect of above-mentioned prior art.
In view of this, the present invention is namely for above-mentioned the deficiencies in the prior art, propose a kind of can effectively obtaining from the next complete noise information of display panel, and effectively can completely cut off the noise come from display panel causes the tool noise payment function of noise capacitive touch control display device to capacitance touching control sensor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and defect, a kind of capacitive touch control display device of tool noise payment function is proposed, it effectively can obtain the complete noise information come from display panel, and the noise that can effectively completely cut off from display panel is next causes noise to capacitance touching control sensor.
For reaching above-mentioned purpose, just wherein a viewpoint is sayed, the invention provides a kind of capacitive touch control display device of tool noise payment function, comprises: a display panel; And a capacitance touching control sensor, it is arranged on this display panel, and wherein this capacitance touching control sensor comprises: the first electrode and the second electrode, by capacitive coupling therebetween with detection signal; One signal line, it is arranged at the outside of this first electrode or the second electrode, overlaps in overlooking on direction or does not overlap with this first electrode or the second electrode; And a noise payment line, in order to receive the noise come from this display panel, wherein this signal line and noise payment line and gap between the two, comprehensively forms an imagination shape, and wherein this imagination shape is rectangle.
Preferably implement in kenel in one, this first electrode comprises many sense wires (sensing line), and wherein this sense wire is intervally installed and is parallel to a first direction, this second electrode comprises many drive wires (driving line), wherein this drive wire is intervally installed and is parallel to a second direction, wherein this drive wire and this sense wire from vertical view depending on for interlaced in order to produce induction field, and by sectional view depending on be positioned in the plane of differing heights, wherein this first direction is crossing with this second direction, and when this signal line be arranged at this drive wire in the outside of this first direction and be parallel to this second direction time, this long limit of imagination shape is at least same long with this drive wire, again when this signal line be arranged at this sense wire in the outside of this second direction and be parallel to this first direction time, this long limit of imagination shape is at least same long with sense wire.
Preferably implement in kenel in one, this signal line, this noise payment line and this drive wire by sectional view depending on be positioned in mutually level plane.
Preferably implement in kenel in one, this drive wire by sectional view depending on be positioned at the top that this signal line and this noise offset line.
Preferably implement in kenel in one, the width of this noise payment line is less than or equal to the width of this signal line.
Preferably implement in kenel in one, the thickness of this noise payment line is less than the thickness of this drive wire.
Preferably implement in kenel in one, this capacitance touching control sensor more comprises a substrate, and this sense wire is arranged at the side of this substrate, and this drive wire and this noise offset the relative opposite side that line is arranged at this substrate.
Preferably implement in kenel in one, the current potential of this signal line is higher or lower than the current potential of this drive wire.
Preferably implement in kenel in one, the capacitive touch control display device of this tool noise payment function more comprises: a screen layer, it is arranged along the setting direction being parallel to this noise payment line, from sectional view depending on this screen layer and this noise offset line and overlap each other and form an overlapping area, and by sectional view depending on this screen layer be positioned in mutually level plane with this sense wire, an electric field wall is formed thus, with the impact of the isolated signal come from this drive wire on this noise payment line between this noise payment line and this screen layer.
Preferably implement in kenel in one, this overlapping area is less than this noise payment line 35 and overlooks 10% of area.
Preferably implement in kenel in one, the capacitive touch control display device of this tool noise payment function more comprises: a screen layer, it is arranged along the setting direction being parallel to this noise payment line, and by sectional view depending on this screen layer be arranged at and offset between line at this drive wire outermost and this noise, and by sectional view depending on this screen layer be positioned in mutually level plane with this drive wire, thus this screen layer completely cut off from this drive wire come a signal on this noise payment line impact.
Preferably implement in kenel in one, this shielding layer grounding.
Preferably implement in kenel in one, the capacitive touch control display device of this tool noise payment function more comprises a circuit for detecting, offset line with this sense wire and this noise to couple, wherein the sensing signal that produces with this sense wire according to the noise that receives of this noise payment line of this circuit for detecting, produces a noise payment and senses signal.
For reaching above-mentioned purpose, saying with regard to another viewpoint, the invention provides a kind of capacitive touch control display device of tool noise payment function, comprising: a display panel; And a capacitance touching control sensor, it is arranged on this display panel, and wherein this capacitance touching control sensor comprises: a main signal region; And one noise payment district; Wherein this main signal region has: many sense wires (sensing line), and wherein this sense wire is intervally installed and is parallel to a first direction; Many drive wires (driving line), wherein this drive wire is intervally installed and is parallel to a second direction, wherein this drive wire and this sense wire from vertical view depending on interlaced in order to produce induction field, wherein this first direction is crossing with this second direction; Wherein this noise payment district has: a noise payment sense wire, and it, along being parallel to this first direction, is arranged at the outside of this sense wire of this main signal region; And many noise payment drive wires, wherein this noise payment drive wire is intervally installed and is parallel to this second direction, wherein this noise payment drive wire and this noise offset sense wire from vertical view depending on be perpendicular to one another orthogonal and by sectional view depending on be positioned at the plane of differing heights; Wherein this noise payment drive wire in this noise payment district does not directly connect each other with this drive wire of this main signal region and is not also positioned at identical current potential; This noise payment sense wire in this noise payment district receives the noise come from this display panel thus.
Preferably implement in kenel in one, these many drive wires and this many sense wires by sectional view depending on be positioned in the plane of differing heights.
Preferably implement in kenel in one, this noise payment drive wire and this many drive wires by sectional view depending on be positioned in mutually level plane.
Preferably implement in kenel in one, this capacitance touching control sensor more comprises a substrate, and this sense wire and this noise offset the side that sense wire is arranged at this substrate, and this drive wire and this noise offset the relative opposite side that drive wire is arranged at this substrate.
Preferably implement in kenel in one, this noise payment drive wire is one another in series and ground connection.
Preferably implement in kenel in one, the capacitive touch control display device of this tool noise payment function more comprises a circuit for detecting, itself and this sense wire and this noise payment sense wire couple, wherein the sensing signal that produces with this sense wire according to the noise that receives of this noise payment sense wire of this circuit for detecting, produces a noise payment and senses signal.
Illustrate in detail below by specific embodiment, when the effect being easier to understand object of the present invention, technology contents, feature and reach.
Accompanying drawing explanation
Figure 1A shows the vertical view of the capacitive touch control display device of a prior art;
Figure 1B shows the sectional view of capacitive touch control display device along the profile line X-X ' of 1A figure of a prior art;
Fig. 2 display is according to the decomposing schematic representation of Figure 1B;
Fig. 3 A shows the vertical view of the capacitive touch control display device of the tool noise payment function of first embodiment of the invention;
Fig. 3 B shows the sectional view of capacitive touch control display device along the profile line X-X ' of Fig. 3 A of the tool noise payment function of first embodiment of the invention;
Figure 3C shows the decomposing schematic representation according to Fig. 3 B;
Fig. 3 D-3E shows second, third embodiment of the capacitive touch control display device of tool noise payment function of the present invention;
Fig. 4 A shows the sectional view of the capacitive touch control display device of the tool noise payment function of fourth embodiment of the invention;
Fig. 4 B shows the decomposing schematic representation according to Fig. 4 A;
Fig. 5 A shows the sectional view of the capacitive touch control display device of the tool noise payment function of fifth embodiment of the invention;
Fig. 5 B shows the decomposing schematic representation according to Fig. 5 A;
Fig. 6 A shows the vertical view of the capacitive touch control display device of the tool noise payment function of sixth embodiment of the invention;
Fig. 6 B shows the sectional view of capacitive touch control display device along the profile line Y-Y ' of Fig. 6 A of the tool noise payment function of sixth embodiment of the invention;
Fig. 6 C shows the decomposing schematic representation according to Fig. 6 B;
Fig. 7 A shows the vertical view of the capacitive touch control display device of the tool noise payment function of seventh embodiment of the invention;
Fig. 7 B shows the sectional view of capacitive touch control display device along the profile line Z-Z ' of Fig. 7 A of the tool noise payment function of seventh embodiment of the invention;
Fig. 7 C shows the decomposing schematic representation according to Fig. 7 B;
Fig. 8 shows an embodiment of circuit for detecting of the present invention.
Symbol description in figure
(prior art)
10 existing capacitive touch control display devices
11 existing capacitance touching control sensors
12 existing display panels
14 existing substrates
The side of 141 existing substrates
The opposite side of 142 existing substrates
A, B noise
The existing drive wire of DA1 ~ DA9
The existing sense wire of SA1 ~ SA9
(the present invention)
30, the capacitive touch control display device of 40,50,60,70 tool noise payment functions
31 capacitance touching control sensors
32 display panels
330 original-shapes
331 first signal line
332 second signal line
34 substrates
The side of 341 substrates, the first side
The opposite side of 342 substrates, the second side
35 noise payment lines
36 screen layers
36A overlapping area
37 screen layers
38 noise payment lines
39 walls
711 main signal region
712 noise payment districts
ADC analog-to-digital converter
ADCS numeral sensing signal
Other noise of C
D signal
DS senses signal
DB1 ~ DB9 drive wire
DC1 ~ DC9 noise payment drive wire
IA inverting amplifier
N11 ~ N99 node
NC91 node
NS1 noise
NS2 gain noise
OA1 operational amplifier
OA2 operational amplifier
R1 first resistance
R2 second resistance
SB1 ~ SB9 sense wire
SC1 noise payment sense wire
SDC circuit for detecting
WS noise payment sensing signal
X-X ' profile line
Y-Y ' profile line
Z-Z ' profile line
Embodiment
Aforementioned and other technology contents, feature and effect for the present invention, in the detailed description of following cooperation with reference to a graphic preferred embodiment, can clearly present.The direction term mentioned in following examples such as: upper and lower, left and right, front or rear etc., is only the direction with reference to annexed drawings.Graphic in the present invention all belongs to signal, is mainly intended to represent the function relation between each device and each element, as shape, thickness and width then not according to scale.
Please also refer to Fig. 3 A to Fig. 3 C, wherein Fig. 3 A shows the vertical view of the capacitive touch control display device of the tool noise payment function of first embodiment of the invention, Fig. 3 B shows the sectional view of capacitive touch control display device along the profile line X-X ' of Fig. 3 A of the tool noise payment function of first embodiment of the invention, and Fig. 3 C shows a decomposing schematic representation of Fig. 3 B.The capacitive touch control display device 30 of the tool noise payment function shown in Fig. 3 B such as can be a mutual inductance type (mutual capacitancetype) capacitance touching control display device.Generally speaking, the capacitive touch control display device 30 of tool noise payment function can comprise capacitance touching control sensor 31 and display panel 32, and wherein capacitance touching control sensor 31 is arranged on display panel 32.In one embodiment, can use between capacitance touching control sensor 31 and display panel 32 and be engaged with each other such as but not limited to a transparent binder.In figure 3 a, it is looked from vertical view, only draw the capacitance touching control sensor 31 of the capacitive touch control display device 30 of the tool noise payment function shown in Fig. 3 B, this is because display panel 32 is arranged at the below (as shown in Figure 3 B) of capacitance touching control sensor 31, therefore display panel 32 will be cannot see in figure 3 a.In one embodiment, display panel 32 is such as but not limited to can be liquid crystal display (Liquid Crystal Display, LCD) panel or Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) panel.
As shown in Figure 3A, capacitance touching control sensor 31 comprises many sense wires (sensing line) SB1 ~ SB9 and many drive wire (driving line) DB1 ~ DB9, wherein sense wire forms the first electrode, drive wire forms the second electrode, by capacitive coupling detection signal between first and second electrode.In capacitance touching control sensor 31, each sense wire SB1 ~ SB9 is intervally installed and is parallel to a first direction (being horizontal direction in the present embodiment), and each drive wire DB1 ~ DB9 is intervally installed and is parallel to a second direction (being vertical direction in the present embodiment), in preferred embodiment, above-mentioned first direction and second direction are perpendicular to one another in fact orthogonal, but this is for better and nonessential, only need drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 from vertical view look for interlaced.As shown in Figure 3A, drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 from vertical view depending on for interlaced in order to produce induction field, and for example shown in 3B, drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 from sectional view depending on for be positioned at the plane of differing heights each other, and in order to increase sensing efficiency, the better drive wire DB1 ~ DB9 that allows perpendiculars to one another perpendicular array with those sense wires SB1 ~ SB9, therefore following examples are all for perpendicular quadrature, but this and unrestricted the present invention.In addition it should be noted that: above title " parallel " does not represent must be absolute parallel, and that the out of true in tolerable manufacture causes is crooked, each sense wire SB1 ~ SB9 is only needed to be intervally installed and non-intersect and each drive wire DB1 ~ DB9 is also intervally installed and non-intersect.The embodiment of the present invention is that drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 is arranged at different layers and is positioned at the not homonymy of substrate 34, but also drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 can be arranged on same layer or be arranged in the same side of substrate 34 that (diagram coexists above or below substrate 34, such as consult Fig. 3 E, wherein numbering 37 is wall).
In one embodiment, sense wire SB1 ~ SB9 comprises one or more sensing electrode.Drive wire DB1 ~ DB9 comprises one or more drive electrode.Sensing electrode or its part are made up of one or more metallic conduction grid or tin indium oxide (Indium Tin Oxide, ITO).Drive electrode or its part are made up of one or more metallic conduction grid or tin indium oxide (Indium Tin Oxide, ITO).The needs of sensing electrode and the visual layout of drive electrode and be arranged at suitable position, such as but not limited to can at the two ends of sense wire SB1 ~ SB9 and drive wire DB1 ~ DB9.
Compared to the capacitive touch control display device 10 of prior art shown in Figure 1A-1B, 2, the capacitance touching control sensor 31 of the capacitive touch control display device 30 of the tool noise payment function of the present embodiment still includes many first signal line 331, many second signal line 332 and noise payment line 35.Wherein, first signal line 331 of the present embodiment can be arranged at the outside of drive wire DB1 and DB9, and second signal line 332 of the present embodiment can be arranged at the outside of sense wire SB1 and SB9.Meaning namely, as shown in Figure 3A, it is looked from vertical view, the present embodiment can in arranged outside first signal line 331 of drive wire DB1 and DB9 first direction (being horizontal direction in the present embodiment), and/or the present embodiment can in arranged outside second signal line 332 of sense wire SB1 and SB9 second direction (being vertical direction in the present embodiment).Wherein, as shown in Figure 3 B, it is looked from sectional view, first signal line 331 and the second signal line 332 all can be positioned on the same side 342 of substrate 34 (due to the relation at visual angle with drive wire DB1 ~ DB9, second signal line 332 does not illustrate in Fig. 3 B), but the first signal line 331 is not directly connected with drive wire DB1 and DB9 with the second signal line 332.First signal line 331 and the second signal line 332 can be connected to suitable current potential, respectively such as but not limited to earth potential.Because drive wire DB1 ~ DB9 is different from the current potential of the second signal line 332 with the first signal line 331, and electric field wall can be formed between outside drive wire DB1, DB9 and form electric field wall between the second signal line 332 and the two ends of drive wire DB1 ~ DB9 in the first signal line 331 thus, with noise insulation (consult Fig. 3 C, noise C intercepted by electric field wall).In the present embodiment, the first signal line 331 and the second signal line 332 and drive wire DB1 ~ DB9 to be all positioned on the same side 342 of substrate 34 and to be positioned at identical height, but the present invention is not limited thereto, first signal line 331 and the second signal line 332 also can be positioned at different height from drive wire DB1 ~ DB9 or on the not homonymy 342 of substrate 34, emphasis forms electric field wall with noise insulation.
Except the function of above-mentioned electric field wall noise insulation, the capacitance touching control sensor 31 of the capacitive touch control display device 30 of the tool noise of the present embodiment payment function also includes noise payment line 35 (being detailed later about the feature of noise payment line 35 and advantage).Noise payment line 35 is positioned near the first signal line 331 or the second signal line 332, can take from the some of the original-shape of the first signal line 331 or the second signal line 332.Two noise payment lines 35 of above display is positioned in Fig. 3 A embodiment and right, this is the possible setting position in order to display noise payment line 35 of illustrating, but in actual use, a noise payment line 35 only can be set and not need two, and below or left can certainly be arranged on.So-called " taking from original-shape " can consult Fig. 3 A embodiment, and first signal line 331 of original-shape 330 as the left side of the first signal line 331 is depicted as rectangle, and its long limit is at least same long with drive wire DB1 ~ DB9; But the first signal line 331 is not on the right the rectangle of original-shape 330, this can be considered that noise payment line 35 is that on the right of taking out in the original-shape 330 of the right first signal line 331 or being considered as, the first signal line 331 and noise offset line 35 and gap between the two, comprehensive formation one imagines shape, wherein this imagination shape is rectangle, and its long limit is at least same long with drive wire DB1 ~ DB9.Preferably, the minor face of this imagination shape maintains the width of this original-shape, that is the minor face of this imagination shape is no longer than the minor face of first signal line 331 on the left side.Again, the noise payment line 35 due to the present embodiment is taken from the some of the first signal line 331, and therefore noise payment line 35 all can be positioned on the same side 342 of substrate 34 with drive wire DB1 ~ DB9.
Similarly, as noise payment line 35 is taken from the some of the second signal line 332 original-shape, then also can be considered that top second signal line 332 and noise offset line 35 and gap between the two, comprehensive formation one imagines shape, wherein this imagination shape is rectangle, and its long limit is at least same long with sense wire SB1 ~ SB9.Preferably, the minor face of this imagination shape maintains the width of this original-shape, that is the minor face of this imagination shape is no longer than the minor face of the second following signal line 331.
It should be noted that: above this original-shape of title or imagination shape are " rectangle ", refer to " being roughly rectangle ", and are not necessary for completely accurately errorless rectangle; Such as, may cause defect or the micro-camber of sideline shape of the first signal line 331 or the second signal line 332 microcosmic in the fabrication process, these are all in permissible scope.
Please continue to refer to Fig. 3 A and Fig. 3 B.Drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 by vertical view depending on the part of overlap each other (overlap) be referred to as node (meaning and N11, N12 ..., N98, N99).Capacitance touching control sensor 31 can adopt mutual inductance type (mutual capacitance type) touch-control sensing method to sense the touch point be formed on display panel 32, but not as limit.So-called mutual inductance type (mutual capacitance type) capacitance touching control sensing method namely sense each node on the capacitance touching control sensor 31 of the capacitive touch control display device 30 of tool noise payment function (meaning and N11, N12 ..., N98, N99) capacitance change.Suppose that capacitance touching control sensor 31 includes J drive wire and K sense wire, therefore it can be formed with (J × K) individual node.For example, as shown in Figure 3A, capacitance touching control sensor 31 includes 9 drive wire DB1 ~ DB9 and 9 sense wire SB1 ~ SB9, therefore it is formed with 81 node N11, N12, N13 ..., N98, N99 altogether.Because each drive wire DB1 ~ DB9 all can provide a driving voltage and crossing with 9 sense wire SB1 ~ SB9, therefore each node (meaning and N11, N12 ..., N98, N99) all can be coupled out an Inductance and Capacitance, and each Inductance and Capacitance all can be coupled out sensing voltage.(drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 is not in direct contact with one another, so-called " intersecting " refer to by vertical view depending on overlap each other.) for example, in this structure of capacitance touching control sensor 31, a drive wire (such as: DB9) can form node (such as: N98) as shown in Figure 3 A and Figure 3 B with a joining of a sense wire (such as: SB8).Drive wire DB9 and sense wire SB8 at node N98 place coupled to each other go out an Inductance and Capacitance.That is, the drive wire DB9 of capacitance touching control sensor 31 because current potential is each other not identical, therefore can produce the magnetic line of force (as shown in Figure 3 B) at node N98 place with sense wire SB8.When display panel 32 is touched, the Inductance and Capacitance corresponding to the node of touching place in capacitance touching control sensor 31 will change thereupon, and its sensing voltage be coupled out also can change, therefore it is touched that this characteristic can be utilized to go to judge whether display panel 32 has.The number about drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 that it should be noted that described in the present embodiment is only and illustrates, from do not limit by this number during enforcement.In addition should be noted that, although show the outside that the first signal line 331 and the second signal line 332 are positioned at drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 in Fig. 3 A-3C embodiment, do not overlap with drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 overlooking on direction, but the present invention is not limited thereto, refer to Fig. 3 D-3E embodiment, the cabling of drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 can be positioned at the top of the first signal line 331 and the second signal line 332, that is can overlap with the first signal line 331 and/or the second signal line 332 with drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 overlooking on direction.In one embodiment, drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 forms and senses array, and the first signal line 331 and the second signal line 332 can form the peripheral boundary of sensing array.Therefore, the present invention's alleged " the first signal line 331 and the second signal line 332 are positioned at the outside of drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 ", meaning is included in overlooks on direction, and the first signal line 331 and/or the second signal line 332 overlap (peripheral boundary that the first signal line 331 and/or the second signal line 332 form drive wire DB1 ~ DB9 and/or sense wire SB1 ~ SB9) with drive wire DB1 ~ DB9 and/or sense wire SB1 ~ SB9 or do not overlap.
Please continue to refer to Fig. 3 B.As shown in Figure 3 B, the capacitance touching control sensor 31 of the present embodiment more comprises a substrate 34.Sense wire SB1 ~ the SB9 of capacitance touching control sensor 31 can be arranged on the side 341 of substrate 34, and drive wire DB1 ~ DB9 can be arranged on the opposite side 342 of substrate 34.That is, substrate 34 is arranged between each sense wire SB1 ~ SB9 and each drive wire DB1 ~ DB9, and the capacitive touch control display device 30 of each sense wire SB1 ~ SB9, substrate 34 and each drive wire DB1 ~ DB9 sequentially tool noise shielding function of stacked combination cost implementation.
In one embodiment, substrate 34 is the transparent insulating thin plate of a hard rigid material, its material is selected from glass or polycarbonate (PC), polyester (PET), polymethylmethacrylate (PMMA) or cyclic olefin copolymer (COC) etc., but the material ranges implemented is not limited with previous materials.
Please refer to Fig. 3 C, its display is according to a decomposing schematic representation of Fig. 3 B.Fig. 3 C shows: the capacitive touch control display device 30 of the tool noise payment function of the present embodiment not only can carry out noise insulation by electric field wall, arranging of line 35 can also be offseted by noise and detect the noise NS1 next from display panel 32, thus, the impact that noise causes can be calculated, to be deducted, this is the effect of noise payment line 35.In the preferred embodiment, the current potential of noise payment line 35 should be connected to and calculate upper required current potential, such as calculating noise on drive wire DB1 ~ DB9 cause affect time, can with drive wire DB1 ~ DB9 be connected to same current potential (therefore noise offset line 35 may and be not attached to set potential).
In one embodiment, the thickness being positioned at the first signal line 331 or the second signal line 332 offseting line 35 homonymy with noise is less than the thickness of each drive wire DB1 ~ DB9, and be taken from the some of the first signal line 331 or the second signal line 332 due to noise payment line 35, therefore the thickness of noise payment line 35 is also less than the thickness of each drive wire DB1 ~ DB9.The thickness being positioned at the first signal line 331 or the second signal line 332 offseting line 35 homonymy with noise is less than the thickness of each drive wire DB1 ~ DB9, its objective is and make (to consult Fig. 3 B-3C) between drive wire DB9 and the first signal line 331 outside drive wire DB9, not easily form electric field wall, avoid blocking the detecting to noise NS1.In one embodiment, the first signal line 331, second signal line 332 can select copper foil or flexible circuit board (FPT) with the material that noise offsets line 35.
Thus, the present embodiment noise payment line 35 can complete reception from display panel 32 come noise NS1, effectively to obtain the complete noise NS1 information come from display panel 32, so that the sensing signal DS that circuit for detecting SDC (as shown in Figure 3A) receives according to the noise payment noise NS1 that receives of line 35 and each sense wire SB1 ~ SB9 does further noise offset processing, to obtain noise payment sensing signal WS (referring to Fig. 8) (details that the noise NS1 that receives of line 35 does further noise offset processing is detailed later how to utilize noise to offset about circuit for detecting SDC).Therefore effectively obtain by noise payment line 35 the complete noise NS1 information come from display panel 32, the present embodiment can the correctly interference that causes capacitance touching control sensor 31 of calculating noise NS1.
Please also refer to Fig. 4 A and Fig. 4 B.Fig. 4 A shows the sectional view of the capacitive touch control display device of the tool noise payment function of fourth embodiment of the invention.Fig. 4 B shows the decomposing schematic representation according to Fig. 4 A.4th embodiment tool noise payment the capacitive touch control display device 40 of function adopt similar concept to the capacitive touch control display device 30 that the tool noise of the first embodiment offsets function, the two difference be in: the capacitive touch control display device 40 of the tool noise payment function of the present embodiment still comprises a screen layer 36.As shown in Figure 4 A, screen layer 36 is arranged along the setting direction being parallel to noise payment line 35, that is, it is looked from the sectional view of Fig. 4 A, screen layer 36 and sense wire SB1 ~ SB9 are all positioned on the same side 341 of substrate 34, and offset line 35 with noise and be positioned at different layers (this means, screen layer 36 can be positioned at the same side with each sense wire SB1 ~ SB9 and can be positioned at opposition side with each drive wire DB1 ~ DB9).In addition, look it by sectional view, the screen layer 36 being positioned at different layers offsets line 35 with noise and is not in direct contact with one another, but overlaps each other and be formed with an overlapping area 36A.The current potential of screen layer 36 can be the current potential higher or lower than noise payment line 35, and such as screen layer 36 can be, but not limited to be ground connection, and when screen layer 36 is ground connection, then accordingly, the current potential of noise payment line 35 can be higher or lower than earthing potential.Thus, as shown in Figure 4 B, an electric field wall B can be formed between screen layer 36 and noise payment line 35.Wherein, screen layer 36 can be considered the first electrode (i.e. top electrode) producing electric field wall, and noise payment line 35 then can be considered the second electrode (i.e. bottom electrode) producing electric field wall.Thus, for example, electric field wall B intercepts (also can be considered absorption) signal D next from drive wire DB9 in the mode of electric field shielding, and the isolated signal D come from drive wire DB9 is on the impact of noise payment line 35 thus.The advantage so arranging screen layer 36 is: noise payment line 35 is when obtaining the complete noise NS1 information come from display panel 32, the signal (such as: signal D) produced from drive wire DB1 ~ DB9 can not be received, thus can not the noise offset processing of interfere with subsequent.
In addition, it should be noted that, as shown in Figure 4 A, screen layer 36 and the noise of the present embodiment offset the overlapping area 36A that line 35 overlaps each other minimum (be such as less than noise offset that area overlooked by line 35 10%), the advantage of design like this is: noise payment line 35 only needs to utilize minimum part (overlapping area 36A) to come to form electric field wall B with screen layer 36, offsets line 35 can maintain the function obtaining the complete noise NS1 come from display panel 32 to make most noise.
Except above-mentioned difference, the capacitive touch control display device 40 of the tool noise payment function of the 4th embodiment has the technical characterstic mentioned by capacitive touch control display device 30 and the advantage of the tool noise payment function of the first embodiment equally, just repeats no more at this.
Please also refer to Fig. 5 A and Fig. 5 B.Fig. 5 A shows the sectional view of the capacitive touch control display device of the tool noise payment function of fifth embodiment of the invention.Fig. 5 B shows the decomposing schematic representation according to Fig. 5 A.5th embodiment tool noise payment the capacitive touch control display device 50 of function adopt similar concept to the capacitive touch control display device 30 that the tool noise of the first embodiment offsets function, the two difference be in: the capacitive touch control display device 40 of the tool noise payment function of the present embodiment still comprises a screen layer 37.As shown in Figure 5A, screen layer 37 is arranged along the setting direction being parallel to noise payment line 35, that is, it is looked from the sectional view of Fig. 5 A, screen layer 37 and drive wire DB1 ~ DB9 are all positioned at (this means, screen layer 37 can be positioned at the same side with each drive wire DB1 ~ DB9 and can be positioned at opposition side with each sense wire SB1 ~ SB9) on the same side 342 of substrate 34.Therefore screen layer 37 and drive wire DB1 ~ DB9 are positioned at same layer, also also offset line 35 with noise and are positioned at same layer.In addition, look it by sectional view, the screen layer 37 being positioned at same layer offsets line 35 with noise and is not in direct contact with one another, and screen layer 37 is arranged at drive wire DB9 and noise offsets between line 35.
The current potential of screen layer 37 can be the current potential higher or lower than noise payment line 35, and such as screen layer 37 can be, but not limited to be ground connection, and when screen layer 37 is ground connection, then accordingly, the current potential of noise payment line 35 can be higher or lower than earthing potential.Thus, screen layer 37 is the isolated signal D come from drive wire DB9 directly, and the isolated signal D come from drive wire DB9 is on the impact of noise payment line 35 thus.The advantage so arranging screen layer 37 is: noise payment line 35 is when obtaining the complete noise NS1 information come from display panel 32, the signal (such as: signal D) produced from drive wire DB1 ~ DB9 can not be received, thus can not the noise offset processing of interfere with subsequent.
Except above-mentioned difference, the capacitive touch control display device 50 of the tool noise payment function of the 5th embodiment has the technical characterstic mentioned by capacitive touch control display device 30 and the advantage of the tool noise payment function of the first embodiment equally, just repeats no more at this.
Please also refer to Fig. 6 A-6C.Fig. 6 A shows the vertical view of the capacitive touch control display device of the tool noise payment function of sixth embodiment of the invention.Fig. 6 B shows the sectional view of capacitive touch control display device along the profile line Y-Y ' of Fig. 6 A of the tool noise payment function of the present invention six embodiment.Fig. 6 C shows the decomposing schematic representation according to Fig. 6 B.The tool noise payment capacitive touch control display device 60 of function of the 6th embodiment adopts similar concept to the capacitive touch control display device 30,40 that the tool noise of previous embodiment offsets function to 50, and the two difference noise be in: the capacitive touch control display device 60 of the tool noise payment function of the present embodiment offsets line 38 can make the first signal line 331 or the second signal line 332 disconnect; Instead of as shown in Figure 3A, noise payment line 35 only occupies a part on short (width) direction of imagination rectangle and the first signal line 331 or the second signal line 332 are still connected.In the present embodiment, the right first signal line 331 and noise offset line 38 and gap between the two, comprehensive formation one imagination shape, and wherein this imagination shape is rectangle, and its long limit at least same length with drive wire DB1 ~ DB9.And/or top second signal line 332 and noise offset line 38 and gap between the two, comprehensive formation one imagination shape, wherein this imagination shape is rectangle, and its long limit at least same length with sense wire SB1 ~ SB9.In Fig. 3 A embodiment, the width (length of short sides) of noise payment line 35 is less than the width (length of short sides) of the first signal line 331 or the second signal line 332, in Fig. 6 A embodiment, the width (length of short sides) of noise payment line 38 is not then limit by this, but better, should be less than or equal to the width (length of short sides) of the first signal line 331 or the second signal line 332.
Except above-mentioned noise payment line 38 can make except the first signal line 331 or the disconnection of the second signal line 332, the noise that the noise payment line 38 of the capacitive touch control display device 60 of the tool noise payment function of the 6th embodiment has the capacitive touch control display device 30,40 and 50 of the tool noise payment function of previous embodiment equally offsets technical characterstic mentioned by line 35 and advantage, just repeats no more at this.
Further, the capacitive touch control display device 60 of the tool noise payment function of the 6th embodiment has the technical characterstic mentioned by capacitive touch control display device 30,40 and 50 and the advantage of the tool noise payment function of previous embodiment equally, just repeats no more at this.
Please also refer to Fig. 7 A and Fig. 7 B, wherein Fig. 7 A shows the vertical view of the capacitive touch control display device of the tool noise payment function of seventh embodiment of the invention, and Fig. 7 B shows the sectional view of capacitive touch control display device along the profile line Z-Z ' of Fig. 7 A of the tool noise payment function of seventh embodiment of the invention.The tool noise payment capacitive touch control display device 70 of function of the 7th embodiment adopts similar concept to the capacitive touch control display device 30 that the tool noise of the first embodiment offsets function, the two difference be in: the first, the capacitance touching control sensor 71 of the capacitive touch control display device 70 of the tool noise payment function of the present embodiment comprises a main signal region 711 and a noise and offsets district 712.The second, noise payment district 712 has a noise payment sense wire SC1 and many noise payment drive wire DC1 ~ DC9.Three, the noise payment sense wire SC1 that the present embodiment utilizes noise to offset district 712 receives the noise NS1 come from display panel 32, instead of utilizes the noise payment line 35 of the first embodiment.Four, main signal region 711 all around signal line is not set.
It should be noted that, main signal region 711 has many sense wires (sensing line) SB1 ~ SB9 and many drive wire (driving line) DB1 ~ DB9, wherein the sense wire SB1 ~ SB9 of the main signal region 711 of the present embodiment and the sense wire SB1 ~ SB9 of drive wire DB1 ~ DB9 and the first embodiment and drive wire DB1 ~ DB9 has constructed feature, just repeats no more at this.
The noise payment sense wire SC1 in the noise payment district 712 of the present embodiment and noise payment drive wire DC1 ~ DC9 is independent of additionally to arrange outside the sense wire SB1 ~ SB9 of main signal region 711 and drive wire DB1 ~ DB9.Wherein, for example, in one embodiment, noise payment sense wire SC1, along being parallel to a first direction (being horizontal direction in the present embodiment), is arranged at the outside of the sense wire SB1 of main signal region 711.In another embodiment, noise payment sense wire SC1 also can be arranged at the outside of the sense wire SB9 of main signal region 711.Look it from vertical view, the sense wire SB1 ~ SB9 of noise payment sense wire SC1 and main signal region 711 is parallel to each other.Noise payment drive wire DC1 ~ DC9 is intervally installed and is parallel to a second direction (being vertical direction in the present embodiment).In preferred embodiment, above-mentioned first direction and second direction are perpendicular to one another in fact orthogonal, but this is for better and nonessential, only need drive wire DB1 ~ DB9 and sense wire SB1 ~ SB9 from vertical view look for interlaced.Wherein, for example, in one embodiment, noise payment drive wire DC1 ~ DC9 is arranged at the outside of the sense wire SB1 of main signal region 711, and noise payment drive wire DC1 ~ DC9 and noise offset sense wire SC1 from the vertical view of Fig. 7 A depending on be perpendicular to one another orthogonal and by Fig. 7 B sectional view depending on be positioned at the plane of differing heights.
Please continue to refer to Fig. 7 A and Fig. 7 B.Noise payment drive wire DC1 ~ DC9 and noise offset sense wire SC1 by vertical view depending on the part of overlap each other (overlap) be referred to as node (meaning and NC11, NC21 ..., NC81, NC91).For example, as shown in Figure 7 A, capacitance touching control sensor 71 includes 9 noises payment drive wire DC1 ~ DC9 and 1 noise and offsets sense wire SC1, thus its be altogether formed 9 node NC11, NC21 ..., NC81, NC91.
Please continue to refer to Fig. 7 B.As shown in Figure 7 B, the capacitance touching control sensor 71 of the present embodiment more comprises a substrate 34.The noise that the sense wire SB1 ~ SB9 of main signal region 711 and noise offset district 712 offsets sense wire SC1 and can be arranged on the side 341 of substrate 34, and the noise that the drive wire DB1 ~ DB9 of main signal region 711 and noise offset district 712 offsets drive wire DC1 ~ DC9 can be arranged on the opposite side 342 of substrate 34.That is, substrate 34 be arranged at noise that the sense wire SB1 ~ SB9 of main signal region 711 and noise offset district 712 offset sense wire SC1 and, the drive wire DB1 ~ DB9 of main signal region 711 and the noise noise that offsets district 712 offsets between drive wire DC1 ~ DC9.But the noise payment drive wire DC1 ~ DC9 in noise payment district 712 is not directly connected each other with the drive wire DB1 ~ DB9 of main signal region 711, each other also electrically isolated (be preferably and be not positioned at identical current potential).The noise payment drive wire DC1 ~ DC9 in noise payment district 712 is one another in series and ground connection.
Thus, the noise payment sense wire SC1 of the present embodiment can the noise NS1 that comes from display panel 32 of complete reception, effectively to obtain the complete noise NS1 information come from display panel 32, so that the sensing signal DS that each sense wire SB1 ~ SB9 of the noise NS1 that the noise payment sense wire SC1 that circuit for detecting SDC (as shown in Figure 7 A) offsets district 712 according to noise receives and main signal region 711 receives does further noise offset processing, to obtain noise payment sensing signal WS (referring to Fig. 8) (details doing further noise offset processing about circuit for detecting SDC how to utilize noise to offset noise NS1 that sense wire SC1 receives is detailed later).Therefore, effectively obtain by noise payment sense wire SC1 the complete noise NS1 information come from display panel 32, the present embodiment can completely cut off the interference that the noise NS1 main signal region 711 to capacitance touching control sensor 71 next from display panel 32 is caused completely.
Drive wire DB1 ~ the DB9 of the main signal region 711 of the present embodiment and sense wire SB1 ~ SB9 how its crossing node (meaning and N11, N12 ..., N98, N99) be coupled out an Inductance and Capacitance and to be coupled out the technical characteristic of sensing signal DS accordingly identical with the first embodiment, just repeat no more at this.
Please refer to Fig. 8 and contrast Fig. 3 A, Fig. 6 A and Fig. 7 A.Fig. 8 shows an embodiment of circuit for detecting of the present invention.The present invention more can comprise a circuit for detecting SDC.As shown in Fig. 3 A and Fig. 6 A, circuit for detecting SDC can offset line 35 or 38 with sense wire SB1 ~ SB9 and noise and couple.Or as shown in Figure 7 A, circuit for detecting SDC can offset sense wire SC1 with sense wire SB1 ~ SB9 and noise and couple.Wherein, the sensing signal DS that the noise NS1 that circuit for detecting SDC receives according to noise payment line 35 or 38 or noise payment sense wire SC1 produces with sense wire SB1 ~ SB9, produces a noise payment and senses signal WS.
Circuit for detecting SDC comprises an an inverting amplifier IA and operational amplifier OA2.Inverting amplifier IA comprises the first resistance R1, the second resistance R2 and operational amplifier OA1.The first end of the first resistance R1 is as the input end of inverting amplifier IA, and second end of the first resistance R1 is coupled to the negative input end of operational amplifier OA1.Second resistance R2 is a variable resistor, and its first end and the second end are coupled to negative input end and the output terminal of operational amplifier OA1 respectively.The positive input terminal of operational amplifier OA1 receives a ground voltage (i.e. 0V), and the output terminal of operational amplifier OA1 is as the output terminal of inverting amplifier IA.
As shown in Figure 8, when there being touch event to occur, the Inductance and Capacitance of node corresponding to touching place is changed thereupon, on the one hand, the sensing signal DS produced from sense wire SB1 ~ SB9 can input to the positive input terminal of operational amplifier OA2; On the other hand, the first end of the first resistance R1 receives the noise NS1 that noise payment line 35 or 38 or noise payment sense wire SC1 receive.Generally speaking, because sensing signal DS may non-fully mate with the generation circuit of noise NS1, therefore produced signal may need to be multiplied by a multiple, and this multiple can be determined according to the induced electricity capacitance of corresponding generation circuit or other parameter, such as, may be: N:1.Now, by inverting amplifier IA, gain (gain) (i.e. the gain noise NS2) of noise NS1 need be promoted N doubly, and operational amplifier OA2 can be input to.For example, make if want noise NS1 become 1:N with the multiple ratio of gain noise NS2, then when the first resistance R1 is such as 10k ohm, just the second resistance R2 (variable resistor) can be adjusted to 10Nk ohm.Thus, noise NS1 becomes 1:N with the multiple ratio of gain noise NS2, the gain (gain) of noise NS1 is promoted to N, therefore senses between signal DS and gain noise NS2 because induced electricity capacitance or other circuit parameter make a difference and can be cancelled.Then, gain noise NS2 is input to the negative input end of operational amplifier OA2, and sensing signal DS is input to the positive input terminal of operational amplifier OA2, and the output terminal of operational amplifier OA2 produces a noise payment sensing signal WS.Analog-to-digital converter ADC produces a numeral sensing signal ADCS according to noise payment sensing signal WS, receives numeral sensing signal ADCS to make back-end processing circuit go.
Below for preferred embodiment, the present invention is described, just the above, be only and make those skilled in the art be easy to understand content of the present invention, be not used for limiting interest field of the present invention.Under same spirit of the present invention, those skilled in the art can think and various equivalence change.Such as, in the embodiment of Fig. 3 A-3C, 4A-4B, 5A-5B, 6A-6C, first signal line 331 and the second signal line 332 can not have to be all set in outside surrounding, and such as the first signal line 331 can only arrange wherein on one side or both sides, the second signal line 332 can also only arrange wherein on one side or both sides, connection also must not be closed in adjacent both sides again, and can have opening.Again such as, noise payment line 35 can be positioned at the same side of substrate with each sense wire SB1 ~ SB9 and be positioned at the opposition side of substrate with each drive wire DB1 ~ DB9.All this kind, all teaching according to the present invention can analogize and obtain, and therefore, scope of the present invention should contain above-mentioned and other all equivalence change.In addition, arbitrary enforcement kenel of the present invention need not reach all objects or advantage, and therefore, any one of claim should as limit yet.
Claims (19)
1. a capacitive touch control display device for tool noise payment function, is characterized in that, comprise:
One display panel; And
One capacitance touching control sensor, it is arranged on this display panel, and wherein this capacitance touching control sensor comprises:
First electrode and the second electrode, by capacitive coupling therebetween with detection signal;
One signal line, it is arranged at the outside of this first electrode or the second electrode, overlaps in overlooking on direction or does not overlap with this first electrode or the second electrode; And
One noise payment line, in order to receive the noise come from this display panel, wherein this signal line and noise offset line and gap between the two, and comprehensively form an imagination shape, wherein this imagination shape is rectangle.
2. the capacitive touch control display device of tool noise payment function as claimed in claim 1, wherein, this first electrode comprises many sense wires, and wherein this sense wire is intervally installed and is parallel to a first direction, this second electrode comprises many drive wires, wherein this drive wire is intervally installed and is parallel to a second direction, wherein this drive wire and this sense wire from vertical view depending on for interlaced in order to produce induction field, and by sectional view depending on be positioned in the plane of differing heights, wherein this first direction is crossing with this second direction, and when this signal line be arranged at this drive wire in the outside of this first direction and be parallel to this second direction time, this long limit of imagination shape is at least same long with this drive wire, again when this signal line be arranged at this sense wire in the outside of this second direction and be parallel to this first direction time, this long limit of imagination shape is at least same long with sense wire.
3. the capacitive touch control display device of tool noise payment function as claimed in claim 2, wherein, this signal line, this noise payment line and this drive wire by sectional view depending on be positioned in mutually level plane.
4. the capacitive touch control display device of tool noise payment function as claimed in claim 2, wherein, this drive wire by sectional view depending on be positioned at the top that this signal line and this noise offset line.
5. the capacitive touch control display device of tool noise payment function as claimed in claim 1, wherein, the thickness of this noise payment line is less than the thickness of this drive wire.
6. the capacitive touch control display device of tool noise payment function as claimed in claim 1, wherein, the width of this noise payment line is less than or equal to the width of this signal line.
7. the capacitive touch control display device of tool noise payment function as claimed in claim 1, wherein, this capacitance touching control sensor also comprises a substrate, and this sense wire is arranged at the side of this substrate, and this drive wire and this noise offset the relative opposite side that line is arranged at this substrate.
8. the capacitive touch control display device of tool noise payment function as claimed in claim 1, wherein, the current potential of this signal line is higher or lower than the current potential of this drive wire.
9. the capacitive touch control display device of tool noise payment function as claimed in claim 1, wherein, also comprises:
One screen layer, it is arranged along the setting direction being parallel to this noise payment line, this screen layer and this noise offset line and overlap each other and form an overlapping area, and by sectional view depending on this screen layer be positioned in mutually level plane with this sense wire, an electric field wall is formed thus, with the impact of the isolated signal come from this drive wire on this noise payment line between this noise payment line and this screen layer.
10. the capacitive touch control display device of tool noise payment function as claimed in claim 5, wherein, this overlapping area is less than this noise payment line and overlooks 10% of area.
The capacitive touch control display device of 11. tool noise payment functions as claimed in claim 1, wherein, also comprises:
One screen layer, it is arranged along the setting direction being parallel to this noise payment line, and by sectional view depending on this screen layer be arranged at and offset between line at this drive wire outermost and this noise, and by sectional view depending on this screen layer be positioned in mutually level plane with this drive wire, thus this screen layer completely cut off from this drive wire come a signal on this noise payment line impact.
12. as described in claim 9 or 11 tool noise payment function capacitive touch control display device, wherein, this shielding layer grounding.
The capacitive touch control display device of 13. tool noise payment functions as claimed in claim 1, wherein, also comprise a circuit for detecting, offset line with this sense wire and this noise to couple, wherein the sensing signal that produces with this sense wire according to the noise that receives of this noise payment line of this circuit for detecting, produces a noise payment and senses signal.
The capacitive touch control display device of 14. 1 kinds of tool noise payment functions, is characterized in that, comprise:
One display panel; And
One capacitance touching control sensor, it is arranged on this display panel, and wherein this capacitance touching control sensor comprises:
One main signal region; And
One noise payment district;
Wherein this main signal region has:
Many sense wires, wherein this sense wire is intervally installed and is parallel to a first direction;
Many drive wires, wherein this drive wire is intervally installed and is parallel to a second direction, wherein this drive wire and this sense wire from vertical view depending on for interlaced in order to produce induction field, wherein this first direction is crossing with this second direction;
Wherein this noise payment district has:
One noise payment sense wire, it, along being parallel to this first direction, is arranged at the outside of this sense wire of this main signal region; And
Many noise payment drive wires, wherein this noise payment drive wire is intervally installed and is parallel to this second direction, wherein this noise payment drive wire and this noise offset sense wire from vertical view depending on be perpendicular to one another orthogonal and by sectional view depending on be positioned at the plane of differing heights;
Wherein this noise payment drive wire in this noise payment district does not directly connect each other with this drive wire of this main signal region and is not also positioned at identical current potential;
This noise payment sense wire in this noise payment district receives the noise come from this display panel thus.
The capacitive touch control display device of 15. tool noises as claimed in claim 14 payment functions, wherein, these many drive wires and this many sense wires by sectional view depending on be positioned in the plane of differing heights.
The capacitive touch control display device of 16. tool noises as claimed in claim 14 payment functions, wherein, this noise payment drive wire and this many drive wires by sectional view depending on be positioned in mutually level plane.
The capacitive touch control display device of 17. tool noise payment functions as claimed in claim 14, wherein, this capacitance touching control sensor also comprises a substrate, this sense wire and this noise offset the side that sense wire is arranged at this substrate, and this drive wire and this noise offset the relative opposite side that drive wire is arranged at this substrate.
The capacitive touch control display device of 18. tool noise payment functions as claimed in claim 14, wherein, this noise payment drive wire is one another in series and ground connection.
The capacitive touch control display device of 19. tool noise payment functions as claimed in claim 14, wherein, also comprise a circuit for detecting, itself and this sense wire and this noise payment sense wire couple, wherein the sensing signal that produces with this sense wire according to the noise that receives of this noise payment sense wire of this circuit for detecting, produces a noise payment and senses signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410119590.XA CN104951152B (en) | 2014-03-27 | 2014-03-27 | Has the capacitive touch control display device of noise payment function |
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| CN201410119590.XA CN104951152B (en) | 2014-03-27 | 2014-03-27 | Has the capacitive touch control display device of noise payment function |
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| CN104951152A true CN104951152A (en) | 2015-09-30 |
| CN104951152B CN104951152B (en) | 2017-11-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11227135B2 (en) | 2019-04-19 | 2022-01-18 | Egis Technology Inc. | Optical fingerprint sensing apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621728A (en) * | 2011-01-28 | 2012-08-01 | 宏达国际电子股份有限公司 | Touch device with shielding layer |
| CN202394215U (en) * | 2011-12-15 | 2012-08-22 | 华映视讯（吴江）有限公司 | Noise cancellation circuit |
| US20120326992A1 (en) * | 2011-06-27 | 2012-12-27 | Silicon Integrated Systems Corp. | Touch Panel for Providing a Shield Against Noise |
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2014
- 2014-03-27 CN CN201410119590.XA patent/CN104951152B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621728A (en) * | 2011-01-28 | 2012-08-01 | 宏达国际电子股份有限公司 | Touch device with shielding layer |
| US20120326992A1 (en) * | 2011-06-27 | 2012-12-27 | Silicon Integrated Systems Corp. | Touch Panel for Providing a Shield Against Noise |
| CN202394215U (en) * | 2011-12-15 | 2012-08-22 | 华映视讯（吴江）有限公司 | Noise cancellation circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11227135B2 (en) | 2019-04-19 | 2022-01-18 | Egis Technology Inc. | Optical fingerprint sensing apparatus |
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