CN102169378B - Touch panel, multi-point touch detection method thereof, and touch display device - Google Patents
Touch panel, multi-point touch detection method thereof, and touch display device Download PDFInfo
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- CN102169378B CN102169378B CN 201010115688 CN201010115688A CN102169378B CN 102169378 B CN102169378 B CN 102169378B CN 201010115688 CN201010115688 CN 201010115688 CN 201010115688 A CN201010115688 A CN 201010115688A CN 102169378 B CN102169378 B CN 102169378B
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Abstract
The invention discloses a touch panel, which comprises a substrate, a sensing array layer and a signal detection layer, wherein the sensing array layer is arranged on the substrate and provided with a plurality of sensing pads which are in array type arrangement; the sensing pads comprise a plurality of first sensing pads which extend along first direction and a plurality of second sensing pads which extend along second direction; the first direction is intersected with the second direction; the signal detection layer is positioned between the sensing array layer and the substrate and provided with a plurality of signal detection blocks which are independent of one another; and each signal detection block corresponds to the plurality of sensing pads and detects electric field change which is caused correspondingly by touching. By the invention, the problem of wrong sensing of the touch panel can be avoided. Moreover, the invention also provides a multi-point touch detection method of the touch panel and a touch display device.
Description
Technical field
The invention relates to a kind of contactor control device and method for detecting thereof, and particularly relevant for a kind of contact panel and multi-touch detection method and touch control display apparatus.
Background technology
In recent years, fast development and application along with infotech, wireless mobile communication and information household appliances, more lightly change and more humane purpose in order to reach more convenient, volume, many information products change into and use contact panel (Touch Panel) as input media by input medias such as traditional keyboard or mouses.
Fig. 1 illustrates existing a kind of contact panel, and wherein in order to clearly demonstrate, Fig. 1 only illustrates the structure of the sensing serials of contact panel, and has omitted other rete that may exist or element.As shown in Figure 1, existing contact panel 100 comprises a plurality of the first sensing serials 120 and a plurality of the second sensing serials 140.More specifically, the first sensing serials 120 is extended along Y-direction, and wherein each first sensing serials 120 is to be connected in series with the first connecting line 124 by a plurality of the first sensor pads 122 to form.The second sensing serials 140 is extended along directions X, and wherein each second sensing serials 140 is to be connected in series with the second connecting line 144 by a plurality of the second sensor pads 142 to form.The first sensor pad 122 and the second sensor pad 142 can consist of a sensing array, to reach the sensing of face.
As user during with finger contact contact panel 100, the first sensing serials 120 of contact panel 100 and the second sensing serials 140 can produce in the position that finger contacts the change of an electric capacity.Change on this electric capacity can be converted to a control signal and be sent on the control circuit board, and through calculation process and after obtaining a result, and exports a suitable instruction with operating electronic devices again.
As shown in Figure 1, show in the lump crest location schematic diagram in user's touch position A and position B situation among the figure.Please refer to Fig. 1, take X and Y diaxon as example, contact panel is when the detecting touch location, can scan respectively the first sensing serials 120 and second sensing serials 140 of corresponding X-axis and Y-axis, because the sensor on the contact panel on corresponding the first sensing serials 120 and the second sensing serials 140 each own sweep trace is produced the capacitive coupling phenomenon because touching, via with corresponding disalignment to crest location carry out intersection, can orient touch location.
As shown in Figure 1, in user's touch position A and the position B situation, touched position A and touched position B can produce two crest locations (for example: X1, X2, Y1 and Y2) separately in X-axis and Y-axis, two axial crest locations are carried out intersection then can produce 4 plotted points (for example: A, B, A ' and B '), wherein two plotted points of the real touch location of non-genus (for example: A ' and B ') are referred to as wrong sensing points (Ghost point).In the case, contact panel can detect non-real touch location, and then causes operating mistake.
Summary of the invention
The invention provides a kind of contact panel, by the touching signal on the signal detection layer auxiliary judgment sensing array, to promote the setting accuracy of contact panel.
The invention provides a kind of multi-touch detection method of contact panel, it can eliminate the wrong sensing points when referring to touch more.
The invention provides a kind of touch control display apparatus, by the touching signal on the signal detection layer auxiliary judgment sensing array, to promote the setting accuracy of contact panel in the touch control display apparatus.
The present invention proposes a kind of contact panel, and it comprises substrate, sensing array layer and signal detection layer; Wherein, the sensing array layer is arranged on the substrate, and the sensing array layer has a plurality of sensor pads of arrayed, and sensor pad comprises a plurality of the first sensor pads that extend along first direction, and a plurality of the second sensor pads that extend along second direction, wherein first direction and second direction intersect; The signal detection layer is between sensing array layer and substrate, and the signal detection layer has a plurality of signal detection blocks independent of each other, the corresponding a plurality of sensor pads of each signal detection block, and detect the electric field change that causes because of touching; A plurality of signal detection lines, each signal detection line is electrically connected respectively each signal detection block; Described sensing array layer also comprises: a plurality of the first bridging lines, each first bridging line are connected in series two the first adjacent sensor pads, to consist of the first sensing serials; And a plurality of the second bridging lines, each second bridging line is connected in series two the second adjacent sensor pads, to consist of the second sensing serials.
The present invention proposes a kind of multi-touch detection method of as above-mentioned contact panel in addition, and it is suitable for detecting above-mentioned contact panel.The multi-touch detection method of this contact panel comprises the following steps: the capacitance variation according to the sensor pad on the sensing array layer, with the location touch position; The signal detection block of signal detection layer touches having or not of event according to the electric field change of the correspondence that causes because of touching with judgement; The touch position that comparison sensing array layer is located and the judgement of signal detection layer.
The present invention proposes a kind of touch control display apparatus in addition, and touch control display apparatus comprises contact panel and display panel; Wherein contact panel comprises substrate, sensing array layer and signal detection layer; The sensing array layer is arranged on the substrate, the sensing array layer has a plurality of sensor pads of arrayed, sensor pad comprises a plurality of the first sensor pads that extend along first direction, and a plurality of the second sensor pad that extends along second direction, and wherein first direction and second direction intersect; The signal detection layer is between sensing array layer and substrate, and the signal detection layer has a plurality of signal detection blocks independent of each other, the corresponding a plurality of sensor pads of each signal detection block, and detect the electric field change that causes because of touching; A plurality of signal detection lines, each signal detection line is electrically connected respectively each signal detection block; Display panel arranges with respect to contact panel, and wherein the signal detection layer is between display panel and sensing array layer; Described sensing array layer also comprises: a plurality of the first bridging lines, each first bridging line are connected in series two the first adjacent sensor pads, to consist of the first sensing serials; And a plurality of the second bridging lines, each second bridging line is connected in series two the second adjacent sensor pads, to consist of the second sensing serials.
Based on above-mentioned, contact panel of the present invention and multi-touch detection method thereof and touch control display apparatus are further detected the electric field change that causes because of touching by the signal detection layer with signal detection block, to judge real position of touch.Thereby, can eliminate the contact panel wrong sensing points how finger produces when touching, with the real touch location of correct calculating, promote setting accuracy.
Description of drawings
Fig. 1 has illustrated a kind of contact panel that prior art provides.
Fig. 2 A and Fig. 2 B are respectively schematic perspective view and the diagrammatic cross-section of a kind of contact panel in one embodiment of the invention.
Fig. 2 C is the top view of the contact panel of Fig. 2 A.
The diagrammatic cross-section of a kind of touch control display apparatus that Fig. 2 D provides for one embodiment of the invention.
Fig. 3 be in the contact panel of Fig. 2 A the signal detection layer on look schematic diagram.
Fig. 4 be in one embodiment of the invention a kind of signal detection layer on look schematic diagram.
Fig. 5 be in one embodiment of the invention a kind of signal detection layer on look schematic diagram.
Fig. 6 be in one embodiment of the invention a kind of signal detection layer on look schematic diagram.
Fig. 7 is respectively the schematic flow sheet of the multi-touch detection method of a kind of contact panel of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention proposes the method for detecting of a kind of contact panel and multi-point touch thereof, it mainly is signalization detecting layer on the sensing array layer of contact panel, and the signal detection layer divided into a plurality of signal detection blocks, utilize on each signal detection block and detect the electric field change that causes because of touching, the touch point of institute's sensing on the signal of detecting via comparison signal detection layer and the sensing array layer, to judge the position of real touch point, thus, can promote significantly the judgement precision of contact panel, avoid occurring the problem of wrong sensing points.Below will enumerate the arrange in pairs or groups method for detecting of graphic detailed description contact panel of the present invention and multi-point touch thereof of a little embodiment.
Fig. 2 A and Fig. 2 B are respectively schematic perspective view and the diagrammatic cross-section of a kind of contact panel in one embodiment of the invention.Please refer to Fig. 2 A and Fig. 2 B, contact panel 200 comprises: substrate 210, sensing array layer 220 and signal detection layer 230.Wherein, sensing array layer 220 is arranged on the substrate 210, and sensing array layer 220 has a plurality of sensor pads 222 of arrayed, to reach the sensing of face.Sensor pad 222 comprises a plurality of the first sensor pad 222A and a plurality of the second sensor pad 222B that extend along second direction D2 that extend along first direction D1, wherein first direction D1 and second direction D2 intersect, in the present embodiment, first direction D1 for example is line direction, and second direction D2 for example is column direction, and first direction D1 and second direction D2 are quadrature in the present embodiment, certainly, angle between first direction D1 and the second direction D2 also can not be 90 degree, decides on product demand.Specifically, between sensing array layer 220 and substrate 210, set up signal detection layer 230, wherein signal detection layer 230 has a plurality of signal detection blocks 232 independent of each other, a plurality of sensor pads 222 in each signal detection block 232 corresponding sensing array layer 220, and respond to the electric field change that causes because of touching.Below will describe for the associated components of contact panel 200.
Particularly, sensing array layer 220 also comprises: a plurality of the first bridging line 224A, each first bridging line 224A are connected in series two the first adjacent sensor pad 222A, to consist of the first sensing serials 226A that extends along line direction.On the other hand, sensing array layer 220 also comprises: a plurality of the second bridging line 224B, each second bridging line 224B are connected in series two the second adjacent sensor pad 222B, to consist of the second sensing serials 226B that extends along row.And, shown in the enlarged drawing of Fig. 2 A, the first bridging line 224A and the second bridging line 224B are interlaced, and in the present embodiment, the first sensor pad 222A, the second sensor pad 222B and the second bridging line 224B are made of the single-layer and transparent conductive layer, the first bridging line 224A utilizes another conductive layer to cross over the second bridging line 224B, and owing between the first bridging line 224A and the second bridging line 224B insulation course (not illustrating) being set, even therefore the first bridging line 224A and the second bridging line 224B are interlaced, the first sensing serials 226A and the second sensing serials 226B are electrically insulated each other.Certainly, the personnel that know this technical field also can be with the first sensor pad 222A, the second sensor pad 222B, the formation rete of the first bridging line 224A and the second bridging line 224B slightly changes, the first sensor pad 222A for example, the second sensor pad 222B and the first bridging line 224A also can be made of the single-layer and transparent conductive layer, the second bridging line 224B utilizes another conductive layer to cross over the first bridging line 224A, or, two kinds of different conductive layers with different the first sensor pad 222A and the second sensor pad 222B form respectively the first bridging line 224A and the second bridging line 224B, it is worth mentioning that, the first sensor pad 222A can be all a kind of conductive material or different conductive material from the second sensor pad 222B.The present invention does not limit relative position and the formation of the first sensor pad 222A, the second sensor pad 222B, the first bridging line 224A and the second bridging line 224B.Thus, the first sensor pad 222A and the second sensor pad 222B can consist of the sensing array of one side, and the first sensor pad 222A and the second sensor pad 222B are copline, thereby consist of sensing array layer 220, are passed on the controller thereby the electric capacity that user's touch position produces changed.
Please continue with reference to Fig. 2 A and Fig. 2 B, contact panel 200 also comprises: a plurality of signal detection lines 240 and controller 250, wherein each signal detection line 240 is electrically connected respectively each signal detection block 232, and controller 250 is electrically connected signal detection line 240.It is worth mentioning that, for clearly demonstrating, only schematically indicate among the figure each signal detection line 240 respectively with the relative electrical connection of each signal detection block 232, the visual demand in backguy position of signal detection line 240 reality and be hidden among each signal detection block 232 or the appropriate location must be with the layout kenel shown in Fig. 2 A and do not limit signal detection line 240.In addition, in the present embodiment, a dielectric layer 280 can be set between sensing array layer 220 and signal detection layer 230 so that between sensing array layer 220 and the signal detection layer 230 each other for being electrically insulated.On the operating mechanism of reality, when making the sensor pad 222 generation capacitance change of touching place when user's touch sensing array layer 220, the signal detection block 232 of corresponding real touching place can be sensed the electric field change that cause in the touching place in the signal detection layer 230.Then, sensing array layer 220 and signal detection layer 230 respectively with the signal of this electric field change and sensing signal transmission to controller 250, after the sensing signal that the electric field change signal that controller 250 is exported via comparison signal detection layer 230 and sensing array layer 220 are exported, will judge having or not of touch event.
For instance, Fig. 2 C is the top view of Fig. 2 A of the present invention, wherein for clearly demonstrating, indicates in the lump the signal detection block and divide kenel in Fig. 2 C.Please refer to Fig. 2 C, when user while touch position A and position B, the signal detection block 232 of corresponding real touching place can be sensed the electric field change of touch position A and the generation of B place, position in the signal detection layer 230, therefore, even the touch position that sensing array layer 220 senses may have position A, position B and position A ' and position B ', the electric field change signal that signal detection layer 230 detects (such as signal detection block 232a and signal detection block 232b) can be used as the secondary-confirmation (double check) of the sensing signal of sensing array layer 220, thus, because position A ' and position B ' are not touched, so the signal detection layer 230 of position A ' and position B ' below can't be sensed electric field change.Put it bluntly, the position that the signal that signal detection layer 230 detects can the real touch point of auxiliary judgment, and then solve existing contact panel 200 when multi-point touch the problem of the wrong sensing points that produces (Ghost point).
Certainly, in the application of reality, contact panel usually can be arranged in pairs or groups a display panel and be consisted of a touch control display apparatus.Fig. 2 D is the diagrammatic cross-section of a kind of touch control display apparatus of one embodiment of the invention.Please refer to Fig. 2 D, the substrate 210 of contact panel 200 is to be positioned on the display panel 260 and to consist of a touch control display apparatus 300, and wherein signal detection layer 230 is between display panel 260 and sensing array layer 220.On some special applications, display panel 260 can further be electrically connected with contact panel 200, in other words, in the touch control display apparatus 300 of the present embodiment, display panel 260 can show according to the position location of touch point in the contact panel 200, therefore, the contact panel 200 of the present embodiment together arranged in pairs or groups with display panel 260 and when consisting of touch control display apparatus 300, since the contact panel 200 in the touch control display apparatus 300 of the present embodiment can solve existing contact panel 100 when multi-point touch the problem of the wrong sensing points that produces (Ghost point), therefore display panel 260 can correctly show the picture of user institute wish operation, avoids the situation of misoperation to occur.
For clearly demonstrating contact panel of the present invention, the contact panel 200 that hereinafter will be illustrated take Fig. 2 A again describes the formation kenel of signal detection layer 230 in detail as example.
Fig. 3 be in the contact panel of Fig. 2 A the signal detection layer on look schematic diagram.Please refer to Fig. 2 A and Fig. 3, in the present embodiment, it is block that each signal detection block 232 is in fact, and the edge of each signal detection block 232 aligns in fact with the edge of corresponding sensor pad 222.In detail, please be simultaneously with reference to Fig. 2 A and Fig. 3, in the present embodiment, that sensing array layer 220 is divided into a plurality of sensor pad 222G of group, and each 222G of sensor pad group is made of the sensor pad 222 that flocks together, and 230 on the signal detection layer of corresponding each 222G of sensor pad group below is formulated for a signal detection block 232.Each signal detection block 232 comprises a plurality of signal detection pads 270, and each signal detection pad 270 one of them of corresponding sensor pad 222 haply.For example, the scope of the signal detection block 232a that illustrates among Fig. 2 A and Fig. 3 is corresponding to the scope among the 222Ga of sensor pad group, it is block that signal detection block 232a is in fact, and signal detection block 232a edge is identical with the shape of sensor pad 222 of outermost among the 222Ga of sensor pad group haply.
Further, please continue with reference to Fig. 2 A and Fig. 3, in the present embodiment, each signal detection pad 270 has an opening H, the size of opening H equals in fact the size of each sensor pad 222, and signal detection pad 270 in fact and the gap between the sensor pad 222 overlapping.Such as Fig. 2 A and shown in Figure 3, the diagonal line length of the opening H of each signal detection pad 270 is D for example, and the diagonal line length of each sensor pad 222 for example is d, and D equals in fact d in the present embodiment.In other words, the size of each signal detection pad 270 is slightly larger than in fact each sensor pad 222, so that the opening H of signal detection pad 270 exposes its corresponding sensor pad 222 just, in other words, sensor pad 222 is arranged at directly over the opening H accordingly, so that in the projection of substrate 210, and sensor pad 222 just and the area coincidence of opening H.Thus, the shape of signal detection pad 270 is correspondence position gap locations between adjacent sensor pad 222 at the projecting direction of substrate 210, therefore produce the problem of aberration in the time of can compensating light by sensing array layer 220 and signal detection layer 230, the capacitance type touch-control panel 200 that helps to be illustrated in Fig. 2 A provides better visual effect.In addition, because signal detection pad 270 tools have part hollow out zone in the projection of substrate 210, therefore can further improve the integral light-transmitting degree of contact panel 200.
In addition, Fig. 3 makes flowing mode such as aforementioned, repeats no more.
And, below will lift several variation kenels for signal detection stratose of the present invention and describe.
Fig. 4 be in one embodiment of the invention a kind of signal detection layer on look schematic diagram.Please refer to Fig. 4, the signal detection layer 330 of the present embodiment is similar with signal detection layer 230 shown in Figure 3, and its shape is to be in fact block equally.Only, in the present embodiment, each signal detection pad 270 there is no the hollow out zone for whole formula, and in the present embodiment, the size of each signal detection pad 270 equals in fact the size of each sensor pad 222.When the signal detection layer 330 of the present embodiment consists of touch control display apparatus 300 such as the stack architecture of Fig. 2 D with other display panel 260 collocation, whole the formula signal detection layer 330 that the signal detection pad 270 of whole formula consists of can be used as the signal shielding layer, help shielding to come from signal on the display panel 260 (being illustrated in Fig. 2 D) for the interference of contact panel 200, therefore can increase the sensitivity of contact panel 200.
It is worth mentioning that, the deviser can be according to the control pin count of substrate usage space, controller, judge that the demands such as fineness, product specification come division numbers and the shape of the signal detection block 232 on the modelled signal detecting layer 330.The present invention is not in order to limit shape and the quantity of the signal detection block 232 on the signal detection layer 330, certainly, those skilled in the art is after with reference to those embodiments, can within not breaking away from spiritual scope of the present invention, adjust relevant component shape design and setting, with realistic situation and demand.
Below in the design kenel of several signal detection layers of introducing one embodiment of the invention.
Fig. 5 be in one embodiment of the invention a kind of signal detection layer on look schematic diagram.Please refer to Fig. 5, in the signal detection layer 430 of the present embodiment, each signal detection block 232 is in fact strip.In detail, signal detection block 232 is parallel to each other and extend along third direction D3, and wherein third direction D3 is different from first direction D1 and second direction D2, and in the present embodiment, third direction D3 for example is the direction arrangement along first quartile and third quadrant.The edge of each signal detection block 232 be illustrated in Fig. 2 A in sensing array layer 220 on the edge of sensor pad 222 align in fact.Please refer to Fig. 2 and Fig. 5, in other words, in the present embodiment, sensing array layer 220 is according to a plurality of 222G of sensor pad group that extend along third direction D3 that are divided into of bar signal detecting block 232, and in the present embodiment, the 222G of sensor pad group is strip.
More specifically, with aforementioned, please be simultaneously with reference to Fig. 2 and Fig. 5, in the present embodiment, each signal detection pad 270 has an opening H, and the dimension D of opening H equals in fact the size d of each sensor pad 222, and signal detection pad 270 in fact and the gap between the sensor pad 222 overlapping.In other words, the size of each signal detection pad 270 is slightly larger than in fact each sensor pad 222, so that the opening H of signal detection pad 270 exposes its corresponding sensor pad 222 just, in other words, sensor pad 222 is arranged at directly over the opening H accordingly, so that in the projection of substrate 210, and sensor pad 222 just and the area coincidence of opening H.Thus, signal detection pad 270 is correspondence position gap locations between adjacent sensor pad 222 in the projection of substrate 210, therefore produce the problem of aberration in the time of can compensating light by sensing array layer 220 and signal detection layer 430, help capacitance type touch-control panel 200 that better visual effect is provided.In addition, because signal detection pad 270 tools have part hollow out zone in the projection of substrate, therefore can further improve the integral light-transmitting degree of contact panel 200.
Fig. 6 be in one embodiment of the invention a kind of signal detection layer on look schematic diagram.Please refer to Fig. 6, the signal detection layer 530 of the present embodiment is similar with signal detection layer 430 shown in Figure 5, and its shape is to be in fact strip equally.Only, in the present embodiment, each signal detection pad 270 there is no the hollow out zone for whole formula, and in the present embodiment, the size of each signal detection pad 270 equals in fact the size of each sensor pad 222.Please refer to Fig. 6 and Fig. 2 A, when the signal detection layer 530 of the present embodiment is arranged in pairs or groups with other display panel 260 (being illustrated in Fig. 2 D), the signal detection pad 270 of whole formula can be used as the signal shielding layer, help to shield the signal that comes from the display panel 260 for the interference of contact panel 200, therefore can increase the sensitivity of contact panel 200.
Below will more propose a kind of multi-touch detection method of contact panel 200 at this take the contact panel 200 shown in Fig. 2 A as example, please simultaneously with reference to Fig. 2 A and Fig. 7, hereinafter will illustrate in the lump.
Fig. 7 is the schematic flow sheet of the multi-touch detection method of several contact panels of the present invention.Please refer to Fig. 7, wherein step S1 is with sensing array layer location touch position, and step S2 touches having or not of event for judging with the signal detection block of signal detection layer, step S1 and step S2 are independent event, on carrying out, can first execution in step S1 after execution in step S2 again, or execution in step S1 again after can first execution in step S2, perhaps, step S1 and step S2 can carry out synchronously.Particularly, after program began S0, first execution in step S1 was according to the capacitance variation of the sensor pad 222 on the sensing array layer 220, with the location touch position.Then, execution in step S2, the signal detection block 232 of signal detection layer 230 touches having or not of event according to the electric field change that causes because of touching with judgement.Afterwards, execution in step S3, the touch position that comparison sensing array layer 220 is located and the judgement of signal detection layer 230.More particularly, the multi-touch detection method of contact panel 200 can further include execution in step S4A, according to comparison result wrong sense position is covered.Perhaps, the multi-touch detection method of contact panel 200 can further include execution in step S4B, according to comparison result true sense position is taken out.It is worth mentioning that, the execution sequence of above-mentioned step S1 and step S2 also can be exchanged.
Certainly, the multi-touch detection method of contact panel 200 also can be shown in Fig. 7 left process flow diagram.Itself and the right-hand process flow diagram of Fig. 7 are similar, only, above-mentioned step S1 and step S2 also can carry out synchronously, in other words, the signal of sensing array layer and signal detection layer also can export on the controller 250 synchronously, the present invention do not limit step S1, with the execution sequence of step S2.
In sum, contact panel of the present invention and multi-touch detection method thereof and touch control display apparatus are further responded to the electric field change that causes because of touching by the signal detection layer with signal detection block, to judge real position of touch.Thereby, can eliminate the contact panel wrong sensing points how finger produces when touching, with the real touch location of correct calculating, promote setting accuracy.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a contact panel is characterized in that, described contact panel comprises:
Substrate;
The sensing array layer is arranged on the described substrate, and described sensing array layer has a plurality of sensor pads of arrayed, and described sensor pad comprises:
A plurality of the first sensor pads are arranged along first direction;
A plurality of the second sensor pads are arranged described first direction and described second direction along second direction
Intersect; And
The signal detection layer, between described sensing array layer and described substrate, described signal detection layer has a plurality of signal detection blocks independent of each other, the corresponding a plurality of sensor pads of each signal detection block, and detect the electric field change that causes because of touching;
A plurality of signal detection lines, each signal detection line is electrically connected respectively each signal detection block;
Described sensing array layer also comprises:
A plurality of the first bridging lines, each first bridging line are connected in series two the first adjacent sensor pads, to consist of the first sensing serials; And
A plurality of the second bridging lines, each second bridging line are connected in series two the second adjacent sensor pads, to consist of the second sensing serials.
2. contact panel as claimed in claim 1 is characterized in that, described the first sensor pad, described the second sensor pad and described the second bridging line are consisted of by same conductive layer, and described the first bridging line is consisted of by another conductive layer; Perhaps, described the first sensor pad, described the second sensor pad and described the first bridging line are consisted of by same conductive layer, and described the second bridging line is consisted of by another conductive layer.
3. contact panel as claimed in claim 1 is characterized in that, it is block that described each signal detection block is in fact, and the edge of each signal detection block aligns in fact with the edge of corresponding described sensor pad; Perhaps, described each signal detection block is in fact strip, described signal detection block is parallel to each other and extend along third direction, and third direction is different from first direction and second direction, and the edge of each signal detection block aligns in fact with the edge of corresponding described sensor pad.
4. contact panel as claimed in claim 1, it is characterized in that, described each signal detection block comprises a plurality of signal detection pads, one of them of the corresponding described sensor pad of each signal detection pad, each signal detection spacer has an opening, the size of described opening equals in fact the size of each sensor pad, and described signal detection pad in fact and the gap between the described sensor pad overlapping; Perhaps, described each signal detection block comprises a plurality of signal detection pads, one of them of the corresponding described sensor pad of each signal detection pad, and each signal detection pad is whole formula, and the size of each signal detection pad equals in fact the size of each sensor pad.
5. contact panel as claimed in claim 1, it is characterized in that, described contact panel also comprises controller, is electrically connected described signal detection line, described signal detection block exports the electric field change that causes because of touching of detecting to described controller, will judge having or not of touch event.
6. contact panel as claimed in claim 1 is characterized in that, described contact panel also comprises dielectric layer, between described sensing array layer and described signal detection layer.
7. contact panel as claimed in claim 1 is characterized in that, described contact panel also comprises display panel, and described substrate is positioned on the described display panel, so that described signal detection layer is between described display panel and described sensing array layer.
8. the multi-touch detection method of a contact panel as claimed in claim 1 is characterized in that, said method comprising the steps of:
According to the capacitance variation of the sensor pad on the sensing array layer, with the location touch position;
The signal detection block of signal detection layer touches having or not of event according to the electric field change that causes because of touching with judgement; And
Compare touch position that described sensing array layer locates and the judgement of described signal detection layer.
9. the multi-touch detection method of contact panel as claimed in claim 8 is characterized in that, described method also comprises: according to comparison result wrong sense position is covered.
10. the multi-touch detection method of contact panel as claimed in claim 8 is characterized in that, described method also comprises: according to comparison result true sense position is taken out.
11. a touch control display apparatus is characterized in that, described touch control display apparatus comprises:
Contact panel comprises:
Substrate;
The sensing array layer is arranged on the described substrate, and described sensing array layer has a plurality of sensor pads of arrayed, and described sensor pad comprises:
A plurality of the first sensor pads extend along first direction;
A plurality of the second sensor pads extend along second direction, and described first direction and described second direction intersect; And
The signal detection layer, between described sensing array layer and described substrate, described signal detection layer has a plurality of signal detection blocks independent of each other, the corresponding a plurality of sensor pads of each signal detection block, and detect the electric field change that causes because of touching;
A plurality of signal detection lines, each signal detection line is electrically connected respectively each signal detection block; And
Display panel arranges with respect to described contact panel, and described signal detection layer is between described display panel and described sensing array layer;
Described sensing array layer also comprises:
A plurality of the first bridging lines, each first bridging line are connected in series two the first adjacent sensor pads, to consist of the first sensing serials; And
A plurality of the second bridging lines, each second bridging line are connected in series two the second adjacent sensor pads, to consist of the second sensing serials.
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| CN 201010115688 CN102169378B (en) | 2010-02-26 | 2010-02-26 | Touch panel, multi-point touch detection method thereof, and touch display device |
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| CN 201010115688 CN102169378B (en) | 2010-02-26 | 2010-02-26 | Touch panel, multi-point touch detection method thereof, and touch display device |
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| CN107885387B (en) * | 2011-10-14 | 2021-07-23 | 禾瑞亚科技股份有限公司 | Detecting device and method of touch screen |
| CN105630254B (en) * | 2014-10-28 | 2018-11-13 | 南京瀚宇彩欣科技有限责任公司 | The compensation method of the induction amount of Trackpad and its touch-control sensing unit |
| CN105607859B (en) * | 2016-03-02 | 2018-12-11 | 腾讯科技（深圳）有限公司 | A kind of data processing method and device |
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| CN101520703A (en) * | 2009-03-24 | 2009-09-02 | 福州华映视讯有限公司 | Optical touch control panel feedback device |
| CN101576672A (en) * | 2009-03-27 | 2009-11-11 | 福建华映显示科技有限公司 | Touch-control liquid crystal display |
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| US7692638B2 (en) * | 2007-01-03 | 2010-04-06 | Apple Inc. | Error compensation for multi-touch surfaces |
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| CN101520703A (en) * | 2009-03-24 | 2009-09-02 | 福州华映视讯有限公司 | Optical touch control panel feedback device |
| CN101576672A (en) * | 2009-03-27 | 2009-11-11 | 福建华映显示科技有限公司 | Touch-control liquid crystal display |
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