CN104199579A - Capacitive touch display device, touch detection method and integrated circuit IC - Google Patents
Capacitive touch display device, touch detection method and integrated circuit IC Download PDFInfo
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- CN104199579A CN104199579A CN201410401523.7A CN201410401523A CN104199579A CN 104199579 A CN104199579 A CN 104199579A CN 201410401523 A CN201410401523 A CN 201410401523A CN 104199579 A CN104199579 A CN 104199579A
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Abstract
The invention discloses a capacitive touch display device, a touch detection method and an integrated circuit IC. The capacitive touch display device, the touch detection method and the integrated circuit IC are used for preventing misinformation points caused by deformation of flexible display devices, and therefore accurate point reporting of the flexible display devices is achieved. The capacitive touch display device comprises a display panel and a touch electrode layer, and further comprises a first electrode layer used for detecting whether the capacitive touch display device deforms or not, and the first electrode layer and the touch electrode layer are arranged in the same layer or in different layers.
Description
Technical field
The present invention relates to technical field of liquid crystal display, relate in particular to a kind of capacitive touch control display device, touch detecting method and integrated circuit (IC).
Background technology
At present, the display device primary structure of capacitive touch control techniques as shown in Figure 1, comprise show module 1 ' and be positioned at show the touch control electrode layer 2 of module top '.Touch control electrode layer 2 ' touch-control electrode comprise drive electrode TX and induction electrode RX, the drive electrode TX induction electrode Rx acknowledge(ment) signal that transmits.Integrated circuit (Integrated Circuit, IC) calculates the electric capacity between TX and RX according to algorithm, if there is extraneous touch, as points 3 ' touch, and electric capacity changes, and IC just can determine the position of touch through calculating.
For adopting the flexible display device of capacitive touch control techniques, the shape of display device can change, and for example, as shown in Figure 2, shows the certain curvature of module 1 ' bend to.If there is no extraneous touch, when the shape of this flexible display device changes, the electric capacity between TX and RX also can change, and now because electric capacity has occurred to change to produce, does not have to touch but the problem of IC wrong report point; Or, there is extraneous touch, in the situation that the shape of this flexible display device has also occurred to change, now, because variation has all occurred for the electric capacity of diverse location, will produce the problem of false alarm point.Especially for the larger flexible display device of flexible degree, the problems referred to above performance even more serious.
To sum up,, there is the problem because of the wrong report point of display device deformation generation in the flexible display device of prior art.
Summary of the invention
The embodiment of the present invention provides a kind of capacitive touch control display device, touch detecting method and integrated circuit (IC), in order to prevent that flexible display device is because of the wrong report point of deformation generation, thereby realizes the accurate report point of flexible display device.
A kind of capacitive touch control display device that the embodiment of the present invention provides, comprises display panel and touch control electrode layer, also comprises:
Whether the first electrode layer of deformation occurs for detection of described capacitive touch control display device, and described the first electrode layer and described touch control electrode layer are with layer or different layers setting.
The capacitive touch control display device that the embodiment of the present invention provides, comprise display panel and touch control electrode layer, and the first electrode layer whether deformation occurs for detection of described capacitive touch control display device, so, can realize in the situation that display device is touched and reporting accurately a little, in the situation that display device is not touched but deformation occurs, do not report a little, and then effectively prevented the wrong report point of flexible display device because of deformation generation, realized the accurate report point of flexible display device.The embodiment of the present invention also provides a kind of touch detecting method, and the method is applied to above-mentioned display device, and the method comprises:
When the arbitrary position probing at touch control electrode layer arrives touch signal, determine the position of the first electrode layer that this position is corresponding;
Whether judgement detects deformation signal in the position of the first electrode layer, according to judged result, judges whether the display device position that described touch signal is corresponding touches.
The touch detecting method that the embodiment of the present invention provides, when the arbitrary position probing at described touch control electrode layer arrives touch signal, illustrate that this position is touched or deformation has occurred, further, whether the position of determining the first electrode layer that this position is corresponding detects deformation signal, and judges according to judged result whether the position of the display device that touch signal is corresponding touches.Thereby, can realize in the situation that display device is touched and reporting accurately a little, in the situation that display device is not touched but deformation occurs, do not report a little, and then effectively prevented the wrong report point of flexible display device because of deformation generation, realized the accurate report point of flexible display device.
The embodiment of the present invention also provides a kind of integrated circuit (IC), and described integrated circuit (IC) is applied to above-mentioned display device, and described integrated circuit (IC) comprises:
Detection module, while arriving touch signal for the arbitrary position probing when at described touch control electrode layer, determines the position of the first electrode layer that this position is corresponding;
Judge module, for judging in the position of described the first electrode layer deformation signal whether detected, judges according to judged result whether the display device position that described touch signal is corresponding touches.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art capacitive touch control display device;
Fig. 2 is flexible display device case of bending schematic diagram;
The structural representation of a kind of capacitive touch control display device that Fig. 3 provides for the embodiment of the present invention;
The detailed structure schematic diagram of a kind of capacitive touch control display device that Fig. 4 provides for the embodiment of the present invention one;
Fig. 5 is the schematic diagram of a kind of electrode pattern of touch control electrode layer;
The schematic diagram of a kind of electrode pattern of the first electrode layer in the display device that Fig. 6 provides for the embodiment of the present invention;
The structural representation of a kind of capacitive touch control display device that Fig. 7 provides for the embodiment of the present invention two;
The part-structure schematic diagram of second substrate in a kind of capacitive touch control display device that Fig. 8 provides for the embodiment of the present invention;
The structural representation of the another kind of capacitive touch control display device that Fig. 9 provides for the embodiment of the present invention two;
The structural representation of a kind of capacitive touch control display device that Figure 10 provides for the embodiment of the present invention three;
The structural representation of a kind of capacitive touch control display device that Figure 11 provides for the embodiment of the present invention four;
The structural representation of the another kind of capacitive touch control display device that Figure 12 provides for the embodiment of the present invention four;
The structural representation of the another kind of capacitive touch control display device that Figure 13 provides for the embodiment of the present invention four;
The structural representation of the another kind of capacitive touch control display device that Figure 14 provides for the embodiment of the present invention four;
The structural representation of a kind of capacitive touch control display device that Figure 15 provides for the embodiment of the present invention five;
The structural representation of a kind of capacitive touch control display device that Figure 16 provides for the embodiment of the present invention six;
The structural representation of the another kind of capacitive touch control display device that Figure 17 provides for the embodiment of the present invention six;
The structural representation of the another kind of capacitive touch control display device that Figure 18 provides for the embodiment of the present invention six;
The structural representation of the another kind of capacitive touch control display device that Figure 19 provides for the embodiment of the present invention six;
The schematic flow sheet of a kind of touch detecting method that Figure 20 provides for the embodiment of the present invention;
A kind of capacitive touch control display device case of bending schematic diagram that Figure 21 provides for the embodiment of the present invention;
The detailed process schematic diagram of a kind of touch detecting method that Figure 22 provides for the embodiment of the present invention;
The display device that Figure 23 provides for the embodiment of the present invention is the curvature curve schematic diagram of each position in one direction;
Figure 24 is the structural representation of a kind of integrated circuit (IC) of passing through of the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of capacitive touch control display device, touch detecting method and integrated circuit (IC), in order to the wrong report point that prevents that flexible display device from producing because of deformation.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 3, a kind of capacitive touch control display device that the embodiment of the present invention provides, comprise display panel 1 and touch control electrode layer 2, also comprise: the first electrode layer 3 whether deformation occurs for detection of described capacitive touch control display device, wherein, the first electrode layer 3 with layer or different layers setting, is the situation that the first electrode layer 3 and touch control electrode layer 2 different layers arrange with touch control electrode layer 2 shown in Fig. 3.
Below in conjunction with the drawings and specific embodiments, above-mentioned capacitive touch control display device provided by the invention is elaborated.
First, take a side that touch control electrode layer is arranged at display panel describes as example.
Embodiment mono-
Continuation is referring to Fig. 3, the capacitive touch control display device that the embodiment of the present invention one provides, comprises display panel 1, touch control electrode layer 2 and the first electrode layer 3, wherein, touch control electrode layer 2 is arranged at a side of display panel 1, and the first electrode layer 3 is arranged at the opposite side of display panel 1.
In specific implementation process, as shown in Figure 4, display panel 1 comprise first substrate 11, second substrate 12 and be arranged at first substrate 11 and second substrate 12 between liquid crystal layer 13, wherein, touch control electrode layer 2 is arranged at first substrate 11 away from a side of liquid crystal layer 13, and the first electrode layer 3 is arranged at second substrate 12 away from a side of liquid crystal layer 13.
Concrete, first substrate 11 can be color membrane substrates, corresponding second substrate 12 can be array base palte, that is, touch control electrode layer 2 arranges color membrane substrates away from a side of liquid crystal layer, the first electrode layer 3 is arranged on the side away from array base palte, so, the whole display panel in interval between the first electrode layer 3 and touch control electrode layer 2, thus the interference between the first electrode layer 3 and touch control electrode layer 2 is less, guaranteed the touch sensitivity of touch control electrode layer, and the first electrode layer detects the sensitivity of deformation.
It should be noted that, in the capacitive touch control display device that the embodiment of the present invention one provides, touch control electrode layer 2 is condenser types, the first electrode layer 3 can be that condenser type can be also resistance-type, wherein, shown in Fig. 3 and Fig. 4, be that the first electrode layer 3 is capacitive situation, touch control electrode layer 2 and the first electrode layer 3 include a plurality of drive electrode TX and a plurality of induction electrode RX.
Further, the electrode pattern of the electrode pattern of touch control electrode layer 2 and the first electrode layer 3 is described.
First it should be noted that, the concrete shape of the electrode pattern of the electrode pattern of touch control electrode layer 2 and the first electrode layer 3 is by the algorithm of IC, to be determined according to touching the actual demands such as precision by integrated circuit (IC), therefore to arranging of electrode pattern, can adopt prior art, no longer describe in detail in embodiments of the present invention.
In specific implementation process, preferably, the electrode pattern of the first electrode layer 3 can be identical with the electrode pattern of touch control electrode layer 2, if for example the electrode pattern of touch control electrode layer 2 as shown in Figure 5, the electrode pattern of the first electrode layer 3 also can adopt shape as shown in Figure 5.So, in the preparation process of display device, the first electrode layer 3 and touch control electrode layer 2 can adopt identical light shield, improve preparation efficiency.Certainly, the electrode pattern of the first electrode layer 3 also can be different with the electrode pattern of touch control electrode layer 2, as long as the setting of the electrode pattern of the first electrode layer 3 can guarantee can determine according to arranging of electrode pattern the position that deformation occurs.For example, as shown in Figure 6, the electrode pattern of the first electrode layer 3 comprises the cabling 61 that can detect transverse curvature and longitudinal bending and the cabling 62 that only can detect longitudinal bending.
Further, the material of touch control electrode layer 2 can adopt transparent conductive material, such as transparent oxide semiconductors such as the zirconia of tin indium oxide, doping, zinc paste; The isoparametric setting all of the line length of the electrode of touch control electrode layer 2, live width and thickness can adopt prior art, and for example thickness is greater than 1 micron for good., for arranging all of touch control electrode layer 2, can adopt prior art herein, at this, no longer describe in detail.The first electrode layer 3 can adopt the material identical with touch control electrode layer, and transparent conductive material for example, such as transparent oxide semiconductors such as the zirconia of tin indium oxide, doping, zinc paste; The isoparametric setting of the line length of electrode, live width and thickness can be identical with arranging of touch control electrode layer, so, in the process of preparation display device, can adopt identical technique, further raises the efficiency.
Above the explanation of the electrode pattern of the electrode pattern of touch control electrode layer and the first electrode layer is equally applicable to other embodiment, will repeats no more in other embodiments.
Embodiment bis-
As shown in Figure 7, the capacitive touch control display device that the embodiment of the present invention two provides, comprises display panel 1, touch control electrode layer 2 and the first electrode layer 3, wherein, touch control electrode layer 2 is arranged at a side of display panel 1, and the first electrode layer 3 is arranged at the inside of display panel 1.
In specific implementation process, continuation is referring to Fig. 7, display panel 1 comprise first substrate 11, second substrate 12 and be arranged at first substrate 11 and second substrate 12 between liquid crystal layer 13, wherein, touch control electrode layer 2 is arranged at first substrate 11 away from a side of liquid crystal layer 13, and the first electrode layer 3 is arranged at second substrate 12 towards a side of liquid crystal layer 13.Concrete, first substrate 11 can be color membrane substrates, corresponding second substrate 12 can be array base palte, as shown in Figure 8, the first electrode layer 3 can be arranged between the glass substrate 120 and grid layer 121 of array base palte, certainly, between the first electrode layer 3 and grid layer 121, be also provided with insulation course 122.So, can avoid the unnecessary scuffing in display panel manufacturing process, promote yield.And the signal of the first electrode layer 3 directly arrives the IC chip of this first electrode layer 3 by array base palte, thereby this IC chip of controlling the first electrode layer 3 can be together with controlling the IC integrated chip of touch control electrode layer 2, cost-saving.
In another kind of embodiment, referring to Fig. 9, display panel 1 comprise first substrate 11, second substrate 12 and be arranged at first substrate 11 and second substrate 12 between liquid crystal layer 13, concrete, first substrate 11 can be color membrane substrates, and corresponding second substrate 12 can be array base palte, wherein, touch control electrode layer 2 is arranged at first substrate 11 away from a side of liquid crystal layer 13, and the first electrode layer 3 is arranged between first substrate 11 and liquid crystal layer 13.So, the first electrode layer 3 is placed on color membrane substrates and can reduces the impact of circuit on the first electrode layer signal on array base palte.Certainly in specific implementation process, can in sealed plastic box, add conductive materials, signal is directed on array base palte from color membrane substrates, finally signal is conducted to the IC chip of controlling the first electrode layer.
It should be noted that equally, in the capacitive touch control display device that the embodiment of the present invention two provides, touch control electrode layer is condenser type, the first electrode layer can be that condenser type can be also resistance-type, for example, shown in Fig. 7, Fig. 8 and Fig. 9, be that the first electrode layer is capacitive situation, wherein, touch control electrode layer 2 and the first electrode layer 3 include a plurality of drive electrode TX and induction electrode RX.
Embodiment tri-
As shown in figure 10, the capacitive touch control display device that the embodiment of the present invention three provides, comprises display panel 1, touch control electrode layer 2 and the first electrode layer 3, wherein, touch control electrode layer 2 is arranged at a side of display panel 1, and the first electrode layer 3 arranges with layer with touch control electrode layer 2.Concrete, display panel comprise first substrate 11, second substrate 12 and be arranged at first substrate 11 and second substrate 12 between liquid crystal layer 13, touch control electrode layer 2 and the first electrode layer 3 are arranged on first substrate 11 away from a side of liquid crystal layer 13 with layer.So, in the situation that do not increase the thickness of display device, solved the problem of the wrong report point producing due to display device deformation; Meanwhile, in preparation process, can save a light shield, further cost-saving simplifying working process, improves formation efficiency.
It should be noted that, in the capacitive touch control display device that the present embodiment three provides, when the first electrode layer 3 arranges with layer with touch control electrode layer 2, touch control electrode layer 2 is condenser type, the first electrode layer 3 can not be all condenser type, because if 3 layers of same layer of touch control electrode layer 2 and the first electrode arrange and are all condenser type, no matter be that display device is touched or deformation occurs, touch control electrode layer 2 and the first electrode layer 3 will detect signal simultaneously, now can not solve the problem of the wrong report point producing because of display device deformation.Explanation is herein equally applicable to an embodiment for other touch control electrode layer and the same layer setting of the first electrode layer, and repeating part will repeat no more.
In the present embodiment three, the first electrode layer 3 can adopt resistance-type, and for example, as shown in figure 10, touch control electrode layer 2 comprises a plurality of drive electrode TX and induction electrode RX, and the first electrode layer 3 comprises a plurality of resistance cabling R.
Below, the external hanging type capacitance touching control display device of take describes as example.
Embodiment tetra-
As shown in figure 11, the capacitive touch control display device that the embodiment of the present invention four provides, comprising:
Display panel 1, wherein display panel 1 comprise first substrate 11, second substrate 12 and be arranged at first substrate 11 and second substrate 12 between liquid crystal layer 13;
Be arranged at the 3rd substrate 4 of display panel 1 one sides;
Touch control electrode layer 2 and the first electrode layer 3, wherein, touch control electrode layer 2 is arranged at the 3rd real estate to a side of display panel 1.
In specific implementation process, first substrate can be color membrane substrates, and second substrate can be array base palte, and the 3rd substrate is external hanging type touch screen.Wherein, for the first electrode layer 3, for example, can adopt following several mode:
In one embodiment, as shown in figure 11, the first electrode layer 3 is arranged at first substrate 11 towards a side of liquid crystal layer 13; So, the first electrode layer is placed on color membrane substrates and can reduces the impact of circuit on the first electrode layer signal on array base palte.Certainly in specific implementation process, need in sealed plastic box, add conductive materials, signal is directed on array base palte from color membrane substrates, finally signal is conducted to the IC chip of controlling the first electrode layer.
In another embodiment, as shown in figure 12, the first electrode layer 3 is arranged at second substrate 12 towards a side of liquid crystal layer 13; Concrete, continuing referring to Fig. 8, the first electrode layer 3 can be arranged between the glass substrate 120 and grid layer 121 of array base palte, certainly, between the first electrode layer 3 and grid layer 121, is also provided with insulation course 122; So, can avoid the unnecessary scuffing in display panel manufacturing process, promote yield.And the signal of the first electrode layer directly arrives the IC chip of this first electrode layer by array base palte, thereby this IC chip of controlling the first electrode layer can merge with the IC chip of controlling touch control electrode layer, cost-saving.
In another embodiment, as shown in figure 13, the first electrode layer 3 is arranged at second substrate 12 away from a side of liquid crystal layer 13; So, the interval between the first electrode layer and touch control electrode layer is larger, thereby the interference between the first electrode layer and touch control electrode layer is less, has guaranteed the touch sensitivity of touch control electrode layer, and the first electrode layer detects the sensitivity of deformation.
In another embodiment, as shown in figure 14, the first electrode layer 3 and touch control electrode layer 2 arrange with layer.So, in the situation that do not increase the thickness of restraint device, solved the problem of the wrong report point producing due to display device deformation; Meanwhile, in preparation process, can save a light shield, further cost-saving simplifying working process, raises the efficiency.
It should be noted that, the capacitive touch control display device that the embodiment of the present invention four provides, at the first electrode layer 3, be arranged at first substrate 11 in the embodiment of a side of liquid crystal layer 13, or, at the first electrode layer 3, be arranged at second substrate 12 in the embodiment of a side of liquid crystal layer 13, or, at the first electrode layer 3, be arranged in the embodiment of second substrate 12 away from a side of liquid crystal layer 13, touch control electrode layer is condenser type, the first electrode layer can be condenser type or resistance-type, for example, Figure 11, shown in Figure 12 and Figure 13, be that the first electrode layer is capacitive situation, wherein, touch control electrode layer 2 and the first electrode layer 3 include a plurality of drive electrode TX and induction electrode RX, in the embodiment arranging with layer at the first electrode layer 3 and touch control electrode layer 2, touch control electrode layer is condenser type, and the first electrode layer can be resistance-type, for example, in Figure 14, touch control electrode layer 2 comprises a plurality of drive electrode TX and induction electrode RX, and the first electrode layer 3 comprises a plurality of resistance cabling R.
Embodiment five
For external hanging type capacitive touch control display device, plug-in touch screen can be connected with display panel by separation layer, separation layer employing prior art is set, do not repeat them here.In this case, as shown in figure 15, the capacitive touch control display device that the embodiment of the present invention five provides, comprising:
Display panel 1, wherein display panel 1 comprise first substrate 11, second substrate 12 and be arranged at first substrate 11 and second substrate 12 between liquid crystal layer 13;
Be arranged at the 3rd substrate 4 of display panel 1 one sides, and be arranged at the separation layer 5 between the 3rd substrate 4 and first substrate 12;
Touch control electrode layer 2, the first electrode layer 3, wherein, touch control electrode layer 2 is arranged at the 3rd substrate 4 towards a side of display panel 1, and the first electrode layer 3 can be arranged between separation layer 5 and first substrate 11.
Wherein, in specific implementation process, first substrate 11 can be color membrane substrates, and second substrate 12 can be array base palte, and the 3rd substrate 4 is external hanging type touch screens.In the present embodiment, the first electrode layer 3 can be arranged between separation layer 5 and first substrate 11, so, so, can reduce the impact of circuit on the first electrode layer signal on array base palte, and meanwhile, separation layer can also play a protective role to the first electrode layer 3.
It should be noted that equally, in the capacitive touch control display device that the embodiment of the present invention five provides, touch control electrode layer 2 is condenser types, the first electrode layer 3 can be that condenser type can be also resistance-type, for example, shown in Figure 15, be that the first electrode layer 3 is capacitive situation, wherein, touch control electrode layer 2 and the first electrode layer 3 include a plurality of drive electrode TX and induction electrode RX.
Below, the touch control electrode layer of take is arranged on display panel inside and describes as example.
Embodiment six
As shown in figure 16, the capacitive touch control display device that the embodiment of the present invention five provides, comprising:
Display panel 1, wherein display panel 1 comprise first substrate 11, second substrate 12 and be arranged at first substrate 11 and second substrate 12 between liquid crystal layer 13;
And touch control electrode layer 2 and the first electrode layer 3.
In specific implementation process, first substrate 11 can be color membrane substrates, and second substrate 12 can be array base palte.It is example towards a side of liquid crystal layer 13 that the touch control electrode layer 2 of take is arranged at first substrate 11, and for example, touch control electrode layer 2 is arranged on black matrix one deck of color membrane substrates, and arranging of the first electrode layer can adopt following several mode:
In one embodiment, as shown in figure 16, the first electrode layer 3 can be arranged between first substrate 11 and liquid crystal layer 13; So, the first electrode layer is placed on color membrane substrates and can reduces the impact of circuit on the first electrode layer signal on array base palte.Certainly in specific implementation process, need in sealed plastic box, add conductive materials, signal is directed on array base palte from color membrane substrates, finally signal is conducted to the IC chip of controlling the first electrode layer.
In another embodiment, as shown in figure 17, the first electrode layer 3 can be arranged at second substrate 12 towards a side of liquid crystal layer 13; Concrete, continuing referring to Fig. 8, the first electrode layer 3 can be arranged between the glass substrate 120 and grid layer 121 of array base palte, certainly, between the first electrode layer 3 and grid layer 121, is also provided with insulation course 122; So, can avoid the unnecessary scuffing in display panel manufacturing process, promote yield.And the signal of the first electrode layer directly arrives the IC chip of this first electrode layer by array base palte, thereby this IC chip of controlling the first electrode layer can merge with the IC chip of controlling touch control electrode layer, cost-saving.
In another embodiment, as shown in figure 18, the first electrode layer 3 can be arranged at second substrate 12 away from a side of liquid crystal layer 13; So, the interval between the first electrode layer and touch control electrode layer is larger, thereby the interference between the first electrode layer and touch control electrode layer is less, has guaranteed the touch sensitivity of touch control electrode layer, and the first electrode layer detects the sensitivity of deformation.
In another embodiment, as shown in figure 19, the first electrode layer 3 can arrange with layer with touch control electrode layer 2.So, in the situation that do not increase the thickness of restraint device, solved the problem of the wrong report point producing due to display device deformation; Meanwhile, in preparation process, can save a light shield, further cost-saving simplifying working process, enhances productivity.
It should be noted that, the capacitive touch control display device that the embodiment of the present invention six provides, at the first electrode layer 3, be arranged at first substrate 11 in the embodiment of a side of liquid crystal layer 13, or, at the first electrode layer 3, be arranged at second substrate 12 in the embodiment of a side of liquid crystal layer 13, or, at the first electrode layer 3, be arranged in the embodiment of second substrate 12 away from a side of liquid crystal layer 13, touch control electrode layer is condenser type, the first electrode layer can be condenser type or resistance-type, for example, Figure 16, shown in Figure 17 and Figure 18, be that the first electrode layer is capacitive situation, wherein, touch control electrode layer 2 and the first electrode layer 3 include a plurality of drive electrode TX and induction electrode RX, in the embodiment arranging with layer at the first electrode layer 3 and touch control electrode layer 2, touch control electrode layer 2 is condenser type, the first electrode layer 3 can be resistance-type, for example, for example, in Figure 19, touch control electrode layer 2 comprises a plurality of drive electrode TX and induction electrode RX, and the first electrode layer 3 comprises a plurality of resistance cabling R.
It should be noted that, in above embodiment, when the first electrode layer and touch control electrode layer arrange with layer, touch control electrode layer adopts condenser type, and the first electrode layer can not adopt condenser type, but can adopt for example resistance-type.Because the electrode pattern of the first electrode layer can be identical with the electrode pattern of touch control electrode layer, therefore, in this case, also can be understood as touch control electrode layer is used as the first electrode layer simultaneously.That is to say, for touch control electrode layer, can detect the electric capacity of each electrode, also can detect the resistance of each electrode simultaneously.In the specific implementation, as long as each electrode increase is connected to the lead-in wire of IC chip.
Above, the capacitive touch control display device that the embodiment of the present invention is provided has been described in detail, below, by reference to the accompanying drawings, the touch detecting method based on above-mentioned display device that the embodiment of the present invention is provided describes.
As shown in figure 20, a kind of touch detecting method that the embodiment of the present invention provides, is applied to above-mentioned display device, and the method comprises:
Step S2001: determine that the arbitrary position probing at touch control electrode layer arrives touch signal, and determine the position of the first electrode layer that this position is corresponding;
Step S2002: whether judgement detects deformation signal in the position of the first electrode layer, judges according to judged result whether the display device position that described touch signal is corresponding touches.
The touch detecting method that the embodiment of the present invention provides, when the arbitrary position probing at described touch control electrode layer arrives touch signal, illustrate that this position is touched or deformation has occurred, further, whether the position of determining the first electrode layer that this position is corresponding detects deformation signal, and judges according to judged result whether the position of the display device that touch signal is corresponding touches.Thereby, in the situation that display device is touched, even if display device generation deformation also can realize and reporting accurately a little, in the situation that not being touched but deformation occurs, display device do not report a little, thereby can realize the accurate report point of flexible display device, effectively solve because showing the problem of the wrong report point that display device deformation produces.
Wherein, in step S2002, according to judged result, judge that whether the display device position that described touch signal is corresponding touches, and comprising:
If the position at described the first electrode layer does not detect deformation signal, determine that display device position corresponding to described touch signal touches;
If the position probing at described the first electrode layer arrives deformation signal, judge whether this touch signal and this deformation signal meet the corresponding relation setting in advance, if, determine that display device position corresponding to described touch signal touches, otherwise, determine that display device position corresponding to described touch signal touches.
Wherein, when touch control electrode layer adopts condenser type, the first electrode layer to adopt condenser type:
In arbitrary position probing of described touch control electrode layer, to touch signal, comprising: the capacitance change in arbitrary position probing of described touch control electrode layer when there is not touch and deformation with respect to this position;
In the position probing of described the first electrode layer, to deformation signal, comprising: the capacitance change in the position probing of described the first electrode layer when there is not deformation with respect to this position.
Described corresponding relation is when under current radius-of-curvature, described display device touches, and described touch control electrode layer is detecting the capacitance change of described touch signal position and described the first electrode layer at the corresponding relation that the capacitance change of described deformation signal position detected.
Or, when touch control electrode layer adopts condenser type, the first electrode layer to adopt resistance-type:
In arbitrary position probing of described touch control electrode layer, to touch signal, comprising: the capacitance change in arbitrary position probing of described touch control electrode layer when there is not touch and deformation with respect to this position;
In the position probing of described the first electrode layer, to deformation signal, comprising: the resistance change in the position probing of described the first electrode layer when there is not deformation with respect to this position;
Described corresponding relation is when under current radius-of-curvature, described display device touches, and described touch control electrode layer is detecting the capacitance change of described touch signal position and described the first electrode layer at the corresponding relation that the resistance change of described deformation signal position detected.
Take touch control electrode layer and the first electrode layer below all adopts condenser type as example, and the corresponding relation relating in the embodiment of the present invention is described.
In specific implementation process, the arbitrary position for display device, has set in advance at least one mapping table.In each mapping table, under each default radius-of-curvature, all have a corresponding relation, this corresponding relation is when display device touches, and described touch control electrode layer is detecting the capacitance change of described touch signal position and described the first electrode layer at the corresponding relation that the capacitance change of described deformation signal position detected.
For more clearly explanation, refer to Figure 21, for the position A of display device, need to measure the drive electrode TX that 2 pairs of touch control electrode layers should position A
2Awith induction electrode RX
2Abetween capacitance change, and, the drive electrode TX that the first 3 pairs of electrode layers should position A
3Awith induction electrode RX
3Abetween capacitance change.For this position A, corresponding relation is predetermined in the following way:
First, at display device (display device is undeformed) under flat state, measure the drive electrode TX that 2 pairs of touch control electrode layers should position A
2Awith induction electrode RX
2Abetween capacitance, be for example a
0; Measure the drive electrode TX that 3 pairs of the first electrode layers should position A
3Awith induction electrode RX
3Abetween capacitance, be for example b
0;
Further, display device is bent to set curvature, make this display device there is the radius-of-curvature of R1, now, measure the drive electrode TX that 2 pairs of touch control electrode layers should position A
2Awith induction electrode RX
2Abetween capacitance, be for example a
1; Measure the drive electrode TX that 3 pairs of the first electrode layers should position A
3Awith induction electrode RX
3Abetween capacitance, be for example b
1;
Further, when calculating this display device and bending to radius-of-curvature and be R1, A place, position, the capacitance change C1=a of touch control electrode layer
1-a
0; The capacitance change D1=b of the first electrode layer
1-b
0so, obtain the actual measurement corresponding relation of a R1-C1-D1;
Further, selected part radius-of-curvature is tested again, a plurality of actual measurement corresponding relations that obtain of testing according to the part radius-of-curvature of choosing, by curve, obtain an analytic equation, according to this analytic equation, calculate the corresponding relation under each radius-of-curvature of A of this position, for example, can obtain following table one:
| Radius-of-curvature | The capacitance change of touch control electrode layer | The capacitance change of the first electrode layer |
| R1 | C1 | D1 |
| R2 | C2 | D2 |
| R3 | C3 | D3 |
| …… | …… | …… |
Table one
So, can obtain in advance the mapping table of the arbitrary position of display device.
In specific implementation process, the span of general radius-of-curvature is to be more than or equal to 2mm, and concrete value interval can be determined according to actual needs, for example, can be 1mm.
Meanwhile, for each position, not only can test in advance capacitance change (for example, the drive electrode TX in Figure 21 between every two adjacent signal line
2Awith induction electrode RX
2Abetween capacitance change), can also test the capacitance change between every adjacent many signal line, for example capacitance change (for example, the drive electrode TX in Figure 21 between every adjacent four signal line
2Awith induction electrode RX
2A' between capacitance change, drive electrode TX
3Awith induction electrode RX
3A' between capacitance change), so, can further improve and touch the precision detecting.
It should be noted that, because display device has certain thickness, in embodiments of the present invention, make display device there is the radius-of-curvature of R1, all that to instigate the radius-of-curvature at the center thickness place of display device be R1, certainly, because display device degree of crook is certain, the radius-of-curvature of each position is determined, therefore also can adopt the radius-of-curvature at arbitrary thickness place in display device as measurement radius-of-curvature.
Above, the corresponding relation relating in the touch detecting method that the embodiment of the present invention is provided has been described in detail, below, in conjunction with process flow diagram, the touch detecting method further embodiment of the present invention being provided is elaborated.
In a preferred embodiment, as shown in figure 22, the touch detecting method that the embodiment of the present invention provides, comprising:
Step S2201: determine that the arbitrary position probing at touch control electrode layer arrives touch signal, and determine the position of the first electrode layer that this position is corresponding;
Step S2202: whether judgement detects deformation signal in the position of the first electrode layer; If not, continue step S2203; If so, continue step S2204;
Step S2203: determine that the display device position that described touch signal is corresponding touches, and reports a little according to this touch signal;
Step S2204: judge whether this touch signal and this deformation signal meet the corresponding relation setting in advance; If not, continue step S2203; If so, continue step S2205;
Step S2205: determine that the display panel position that described touch signal is corresponding touches, now, because the deformation of display device produces, therefore do not report some during touch signal.
By above step, in the situation that display device is touched, even if deformation has occurred display device, also can realizes and reporting accurately a little according to touch signal; In the situation that display device is not touched, can mask the touch signal producing due to display device deformation, in display device generation deformation but do not report be not a little touched in the situation that; Thereby, solved the problem of display device due to the wrong report point of deformation generation.
Further, it should be noted that, the degree of crook of general display panel is all gradual change, so the radius-of-curvature of each position is all continually varying along with the difference of degree of crook, there will not be the situation of singular point, sudden change and so on.But, do not get rid of the situation that serious deformation occurs display panel yet, for example display device doubling or quilt are kneaded into spitball shape.Wherein, when the radius-of-curvature of this position detected according to the capacitance change of a certain position, be less than 2mm, example is the k point of (being curvature shown in figure) as shown in figure 23, may be that screen, in this position, doubling has occurred.Now, human eye is difficult to see the thing on display screen, uses more tiny felt pen, is also not easy to touch exactly.In this case, determine that display device, in this position, serious deformation has occurred, and this position is set to touch blind area, invalid to the touch of this position.Or, in a direction in display device, according to the capacitance change of each position, the variable quantity of the curvature of each position in a certain segment distance detected when discontinuous successively, for example, Figure 23 mid point m is to putting between n, determine that serious deformation has occurred display device, for example, this display device may be kneaded into spitball shape, now, each position in this distance is made as and touches blind area, invalid for the touch of this each position.So, even if serious deformation occurs display device, owing to the position that serious deformation occurs can being set to touch blind area, therefore also there will not be the situation of wrong report point.
The above-mentioned touch detecting method that the corresponding embodiment of the present invention provides, the embodiment of the present invention also provides a kind of integrated circuit (IC), and as shown in figure 24, this integrated circuit (IC) comprises:
Detection module Z2401, while arriving touch signal for the arbitrary position probing when at touch control electrode layer, determines the position of the first electrode layer that this position is corresponding;
Judge module Z2402, for judging in the position of the first electrode layer deformation signal whether detected, judges according to judged result whether the display device position that touch signal is corresponding touches.
In a preferred embodiment, judge module Z2402 when judging according to judged result whether display device position that described touch signal is corresponding touches, specifically for:
If the position at the first electrode layer does not detect deformation signal, determine that display device position corresponding to touch signal touches;
If the position probing at the first electrode layer arrives deformation signal, judge whether this touch signal and this deformation signal meet the corresponding relation setting in advance, if, determine that display device position corresponding to this touch signal touches, otherwise, determine that the display device position that this touch signal is corresponding touches.
In specific implementation process, when touch control electrode layer and the first electrode layer all adopt condenser type:
Detection module Z2401 is in arbitrary position probing of touch control electrode layer during to touch signal, specifically for: the capacitance change in arbitrary position probing of touch control electrode layer when there is not touch and deformation with respect to this position;
Detection module Z2401 is in the position probing of the first electrode layer 3 during to deformation signal, specifically for: the capacitance change in the position probing of described the first electrode layer 3 when there is not deformation with respect to this position;
Described corresponding relation, when under current radius-of-curvature, described display device touches, described touch control electrode layer 2 is detecting the capacitance change of described touch signal position and described the first electrode layer 3 at the corresponding relation that the capacitance change of described deformation signal position detected.
Or, when touch control electrode layer 2 adopts condenser type, when the first electrode layer 3 adopts resistance-type:
Detection module Z2401 is in arbitrary position probing of touch control electrode layer 2 during to touch signal, specifically for: the capacitance change in arbitrary position probing of touch control electrode layer 2 when there is not touch and deformation with respect to this position;
Detection module Z2401 is in the position probing of the first electrode layer 3 during to deformation signal, specifically for: the resistance change in the position probing of described the first electrode layer 3 when there is not deformation with respect to this position;
Described corresponding relation, when under current radius-of-curvature, described display device touches, described touch control electrode layer 2 is detecting the capacitance change of described touch signal position and described the first electrode layer 3 at the corresponding relation that the resistance change of described deformation signal position detected.
Because corresponding relation sets in advance, therefore, before to display device encapsulation, corresponding relation is write to IC.
In sum, a kind of capacitive touch control display device that the embodiment of the present invention provides, comprise display panel and touch control electrode layer, and the first electrode layer whether deformation occurs for detection of this display device, wherein the first electrode layer and touch control electrode layer are with layer or different layers setting; Further, the embodiment of the present invention also provides a kind of touch detecting method and integrated circuit (IC), when the arbitrary position probing at described touch control electrode layer arrives touch signal, illustrate that this position is touched or deformation has occurred, whether the position of determining the first electrode layer that this position is corresponding detects deformation signal, and judges according to judged result whether the position of the display device that touch signal is corresponding touches.Thereby, in the situation that display device is touched, even if display device generation deformation also can realize and reporting accurately a little, in the situation that not being touched but deformation occurs, display device do not report a little, thereby effectively prevented the wrong report point of flexible display device because of deformation generation, realized the accurate report point of flexible display device.
The present invention is with reference to describing according to process flow diagram and/or the block scheme of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block scheme each flow process and/or the flow process in square frame and process flow diagram and/or block scheme and/or the combination of square frame.Can provide these computer program instructions to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computing machine or other programmable data processing device is produced for realizing the device in the function of flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computing machine or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of process flow diagram or a plurality of flow process and/or square frame of block scheme or a plurality of square frame on computing machine or other programmable devices.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (18)
1. a capacitive touch control display device, comprises display panel and touch control electrode layer, it is characterized in that, also comprises:
Whether the first electrode layer of deformation occurs for detection of described capacitive touch control display device, and described the first electrode layer and described touch control electrode layer are with layer or different layers setting.
2. touch control display apparatus according to claim 1, is characterized in that,
Described touch control electrode layer is arranged at a side of described display panel;
Described the first electrode layer is arranged at the inside of described display panel, or described the first electrode layer is arranged at the opposite side of described display panel, or described the first electrode layer and described touch control electrode layer arrange with layer.
3. touch control display apparatus according to claim 2, is characterized in that, described display panel comprise first substrate, second substrate and be arranged at first substrate and second substrate between liquid crystal layer;
Described touch control electrode layer is arranged at described first substrate away from a side of described liquid crystal layer;
Described the first electrode layer is arranged between described first substrate and described liquid crystal layer.
4. touch control display apparatus according to claim 2, is characterized in that, described display panel comprise first substrate, second substrate and be arranged at first substrate and second substrate between liquid crystal layer;
Described touch control electrode layer is arranged at described first substrate away from a side of liquid crystal layer;
Described the first electrode layer is arranged at described second substrate towards a side of described liquid crystal layer.
5. touch control display apparatus according to claim 2, is characterized in that,
Described display panel comprise first substrate, second substrate and be arranged at first substrate and second substrate between liquid crystal layer;
Described touch control electrode layer is arranged at described first substrate away from a side of described liquid crystal layer;
Described the first electrode layer is arranged at described second substrate away from a side of described liquid crystal layer.
6. touch control display apparatus according to claim 2, is characterized in that, described display panel comprise first substrate, second substrate and be arranged at first substrate and second substrate between liquid crystal layer;
Described touch control electrode layer is arranged at described first substrate away from a side of liquid crystal layer;
Described the first electrode layer and described touch control electrode layer arrange with layer.
7. touch control display apparatus according to claim 1, it is characterized in that, described display panel comprise first substrate, second substrate and be arranged at described first substrate and described second substrate between liquid crystal layer, described touch control display apparatus also comprises the 3rd substrate that is arranged at described display panel one side, wherein
Described touch control electrode layer is arranged at described the 3rd real estate to a side of described display panel;
Described the first electrode layer is arranged at described first substrate towards a side of described liquid crystal layer; Or
Described the first electrode layer is arranged at described second substrate towards a side of described liquid crystal layer; Or
Described the first electrode layer is arranged at described second substrate away from a side of liquid crystal layer; Or
Described the first electrode layer and described touch control electrode layer arrange with layer.
8. touch control display apparatus according to claim 1, it is characterized in that, described display panel comprise first substrate, second substrate and be arranged at described first substrate and described second substrate between liquid crystal layer, described touch control display apparatus also comprises the 3rd substrate that is arranged at described display panel one side, between described the 3rd substrate and described first substrate, be provided with separation layer, wherein
Described touch control electrode layer is arranged at described the 3rd real estate to a side of display panel;
Described the first electrode layer is arranged between described separation layer and described first substrate.
9. touch control display apparatus according to claim 1, is characterized in that, described display panel comprise first substrate, second substrate and be arranged at first substrate and second substrate between liquid crystal layer, wherein
Described touch control electrode layer is arranged at described first substrate towards a side of described liquid crystal layer;
Described the first electrode layer is arranged between described first substrate and described liquid crystal layer; Or
Described the first electrode layer is arranged at described second substrate towards a side of described liquid crystal layer; Or
Described the first electrode layer is arranged at described second substrate away from a side of liquid crystal layer; Or
Described the first electrode layer and described touch control electrode layer arrange with layer.
10. according to the touch control display apparatus described in the arbitrary claim of claim 1-9, it is characterized in that, the electrode pattern of described touch control electrode layer is identical with the electrode pattern of described the first electrode layer, and material is identical.
11. 1 kinds of touch detecting methods, is characterized in that, the method is applied to the display device as described in claim as arbitrary in claim 1-9, and the method comprises:
When the arbitrary position probing at touch control electrode layer arrives touch signal, determine the position of the first electrode layer that this position is corresponding;
Whether judgement detects deformation signal in the position of the first electrode layer, according to judged result, judges whether the display device position that described touch signal is corresponding touches.
12. touch detecting methods according to claim 11, is characterized in that, according to judged result, judge that whether the display device position that described touch signal is corresponding the step touching occurs, and comprising:
If the position at described the first electrode layer does not detect deformation signal, determine that display device position corresponding to described touch signal touches;
If the position probing at described the first electrode layer arrives deformation signal, judge whether this touch signal and this deformation signal meet the corresponding relation setting in advance, if, determine that display device position corresponding to described touch signal touches, otherwise, determine that display device position corresponding to described touch signal touches.
13. touch detecting methods according to claim 12, is characterized in that,
In arbitrary position probing of described touch control electrode layer, to touch signal, comprising: the capacitance change in arbitrary position probing of described touch control electrode layer when there is not touch and deformation with respect to this position;
In the position probing of described the first electrode layer, to deformation signal, comprising: the capacitance change in the position probing of described the first electrode layer when there is not deformation with respect to this position;
Described corresponding relation is when under current radius-of-curvature, described display device touches, and described touch control electrode layer is detecting the capacitance change of described touch signal position and described the first electrode layer at the corresponding relation that the capacitance change of described deformation signal position detected.
14. touch detecting methods according to claim 12, is characterized in that,
In arbitrary position probing of described touch control electrode layer, to touch signal, comprising: the capacitance change in arbitrary position probing of described touch control electrode layer when there is not touch and deformation with respect to this position;
In the position probing of described the first electrode layer, to deformation signal, comprising: the resistance change in the position probing of described the first electrode layer when there is not deformation with respect to this position;
Described corresponding relation is when under current radius-of-curvature, described display device touches, and described touch control electrode layer is detecting the capacitance change of described touch signal position and described the first electrode layer at the corresponding relation that the resistance change of described deformation signal position detected.
15. 1 kinds of integrated circuit (IC), is characterized in that, described integrated circuit (IC) is applied to the display device as described in claim as arbitrary in claim 1-9, and described integrated circuit (IC) comprises:
Detection module, while arriving touch signal for the arbitrary position probing when at described touch control electrode layer, determines the position of the first electrode layer that this position is corresponding;
Judge module, for judging in the position of described the first electrode layer deformation signal whether detected, judges according to judged result whether the display device position that described touch signal is corresponding touches.
16. integrated circuit (IC) according to claim 15, is characterized in that, described judge module when judging according to judged result whether display device position that described touch signal is corresponding touches, specifically for:
If the position at described the first electrode layer does not detect deformation signal, determine that display device position corresponding to described touch signal touches;
If the position probing at described the first electrode layer arrives deformation signal, judge whether this touch signal and this deformation signal meet the corresponding relation setting in advance, if, determine that display device position corresponding to described touch signal touches, otherwise, determine that the display device position that described touch signal is corresponding touches.
17. integrated circuit (IC) according to claim 16, is characterized in that,
Described detection module is in arbitrary position probing of described touch control electrode layer during to touch signal, specifically for: the capacitance change in arbitrary position probing of described touch control electrode layer when there is not touch and deformation with respect to this position;
Described detection module is in the position probing of described the first electrode layer during to deformation signal, specifically for: the capacitance change in the position probing of described the first electrode layer when there is not deformation with respect to this position;
Described corresponding relation is when under current radius-of-curvature, described display device touches, and described touch control electrode layer is detecting the capacitance change of described touch signal position and described the first electrode layer at the corresponding relation that the capacitance change of described deformation signal position detected.
18. integrated circuit (IC) according to claim 16, is characterized in that,
Described detection module is in arbitrary position probing of described touch control electrode layer during to touch signal, specifically for: the capacitance change in arbitrary position probing of described touch control electrode layer when there is not touch and deformation with respect to this position;
Described detection module is in the position probing of described the first electrode layer during to deformation signal, specifically for: the resistance change in the position probing of described the first electrode layer when there is not deformation with respect to this position;
Described corresponding relation is when under current radius-of-curvature, described display device touches, and described touch control electrode layer is detecting the capacitance change of described touch signal position and described the first electrode layer at the corresponding relation that the resistance change of described deformation signal position detected.
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