CN103246397B - Touch control inducing method, touch-control sensing microprocessor and touch control liquid crystal display device - Google Patents
Touch control inducing method, touch-control sensing microprocessor and touch control liquid crystal display device Download PDFInfo
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Abstract
This application discloses a kind of touch control inducing method, touch-control sensing microprocessor and touch control liquid crystal display device, wherein, described touch control inducing method is by detecting the touch mode of the touch operation on touch control liquid crystal display device, configure the spacing of different induction electrodes, concrete, when detecting that touch operation is small area of contact pattern, the spacing between configuration induction electrode is less spacing, then according to configuration induction electrode between the positional information of spacing determination touch operation.Due to, when touch operation is small area of contact pattern, the spacing between the induction electrode of configuration is less, and now, the sampled data that scanning induction electrode obtains is more, thus can improve the touch sensible precision of touch control liquid crystal display device.
Description
Technical field
The application relates to touch control liquid crystal display device technical field, particularly relates to touch control inducing method, touch-control sensing microprocessor and touch control liquid crystal display device.
Background technology
At present, intelligent handheld device improves day by day for the requirement of touch function, require touch control liquid crystal display device can realize the induction of complicated gesture, unsettled induction, finger beyond object (such as, felt pen, touch gloves etc.) induction, these all need touch control liquid crystal display device to have higher induction precision.
But, current touch control liquid crystal display device, because its induction channels spacing is wider, and the number of induction channels is fixed and can not be changed, and cannot support high-precision touch sensible, simultaneously, because induction channels spacing is wider, touch data sampling is sparse, cannot support that comparatively complex calculations (such as, image recognition, 3D gesture etc.).
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of touch control inducing method, touch-control sensing microprocessor and touch control liquid crystal display device, to improve the touch sensible precision of touch control liquid crystal display device, meets high-precision touch sensible, to support complex calculations, technical scheme is as follows:
The application provides a kind of touch control inducing method, is applied to touch control liquid crystal display device, and described touch control liquid crystal display device at least comprises induction electrode, comprising:
When the touch operation on described touch control liquid crystal display device being detected, judge the touch mode of described touch operation, described touch mode comprises large contact surface product module formula, small area of contact pattern;
When judging that described touch operation is small area of contact pattern, the spacing configured between described induction electrode is the first preset pitch, and described first preset pitch is less than the acquiescence spacing of described induction electrode;
According to the spacing between the described induction electrode configured, determine the positional information of described touch operation.
Preferably, said method described determine the positional information of described touch operation before also comprise:
When judging that described touch mode is large contact surface product module formula, the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch.
Preferably, described when judging that described touch mode is large contact surface product module formula, the spacing configured between described induction electrode is the second preset pitch, is specially:
Spacing between the described induction electrode that the touch area that described touch operation is corresponding is corresponding is configured to the second preset pitch, and described second preset pitch is greater than described first preset pitch.
Preferably, said method described determine the positional information of described touch operation before also comprise:
When judging that described touch mode is large contact surface product module formula, if judge, described touch area meets pre-conditioned, then the spacing configured between described induction electrode is the first preset pitch; It is described pre-conditioned if judge, described touch area does not meet, then the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch.
Preferably, said method described determine the positional information of described touch operation before also comprise:
When judging that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, the spacing configuring described induction electrode is the first preset pitch.
Preferably, said method described determine the positional information of described touch operation before also comprise: when detecting that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, in the touch area of touch operation corresponding to described large contact surface product module formula, the spacing configured between described induction electrode is the 3rd preset pitch; In the touch area of touch operation corresponding to described small area of contact pattern, the spacing configured between described induction electrode is the 4th preset pitch; Wherein, described 3rd preset pitch is greater than described 4th preset pitch.
Preferably, the touch mode of the described touch operation of described judgement is specially:
Obtain the touch index parameter of described touch operation, described touch index parameter comprises touch area, the touch intensity of touch operation;
The touch mode of described touch operation is determined according to described touch index parameter.
Preferably, describedly determine that the positional information of described touch operation specifically comprises:
Described induction electrode after scanning disposition interval, obtains and touches sampled data;
Judge the scan type of described induction electrode, described scan type comprises the scanning of induction electrode Large space and the scanning of induction electrode Small Distance;
When judging that described scan type is the scanning of induction electrode Large space, calculating the touch location of described touch operation according to described touch data, and described touch location is sent to described touch control liquid crystal display device main frame;
When judging that described scan type is the scanning of induction electrode Small Distance, sending to the main frame of described touch control liquid crystal display device to process described touch data, obtaining the touch location of described touch operation.
The application also provides a kind of touch-control sensing microprocessor, be applied to touch control liquid crystal display device, described touch control liquid crystal display device at least comprises induction electrode, and described touch-control sensing microprocessor comprises: touch mode judging unit, spacing dispensing unit, touch location determining unit;
Described touch mode judging unit, for judging the touch mode of the touch operation on the touch control liquid crystal display device detected, described touch mode comprises large contact surface product module formula, small area of contact pattern;
Described spacing dispensing unit, for when judging that described touch operation is small area of contact pattern, the spacing configured between described induction electrode is the first preset pitch, and described first preset pitch is less than the acquiescence spacing of described induction electrode;
Described touch location determining unit, for the spacing between the described induction electrode according to configuration, determines the positional information of described touch operation.
Preferably, described spacing dispensing unit also for,
When judging that described touch mode is large contact surface product module formula, the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch.
Preferably, described spacing dispensing unit also for, when judging that described touch mode is large contact surface product module formula, if judge, described touch area meets pre-conditioned, then the spacing configured between described induction electrode is the first preset pitch; It is described pre-conditioned if judge, described touch area does not meet, then the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch.
Preferably, described spacing dispensing unit also for, when judging that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, the spacing configuring described induction electrode is the first preset pitch.
Preferably, described spacing dispensing unit also for, when detecting that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, in the touch area of touch operation corresponding to described large contact surface product module formula, the spacing configured between described induction electrode is the 3rd preset pitch; In the touch area of touch operation corresponding to described small area of contact pattern, the spacing drained between described induction electrode is the 4th preset pitch; Wherein, described 3rd preset pitch is greater than described 4th preset pitch.
Preferably, described touch mode judging unit specifically comprises: acquiring unit and the first determining unit;
Described acquiring unit, for obtaining the touch index parameter of described touch operation, described touch index parameter comprises touch area, the touch intensity of touch operation;
Described first determining unit, for determining the touch mode of described touch operation according to described touch index parameter.
Preferably, described touch location determining unit specifically comprises:
Data capture unit, for the described induction electrode after scanning disposition interval, obtains and touches sampled data;
Scan type judging unit, for judging the scan type of described induction electrode, described scan type comprises the scanning of induction electrode Large space and the scanning of induction electrode Small Distance;
Computing unit, for when judging that described scan type is the scanning of induction electrode Large space, calculating the touch location searching out touch operation, and described touch location is sent to the main frame of described touch control liquid crystal display device according to described touch data;
Data transmission unit, for when judging that described scan type is the scanning of induction electrode Small Distance, sending to the main frame of described touch control liquid crystal display device to process described touch data, obtaining the touch location of described touch operation.
The application also provides a kind of touch control liquid crystal display device, comprising: the display screen overlapped and induction electrode, and above-mentioned touch-control sensing microprocessor;
Described touch-control sensing microprocessor, for configuring the spacing of described induction electrode according to the touch mode of touch operation, and according to the spacing of the induction electrode after configuration, determines the positional information of described touch operation.
The technical scheme provided from above the embodiment of the present application, described touch control inducing method is by detecting the touch mode of the touch operation on touch control liquid crystal display device, configure the spacing of different induction electrodes, concrete, when detecting that touch operation is small area of contact pattern, spacing between configuration induction electrode is less spacing, then according to configuration induction electrode between the positional information of spacing determination touch operation.Due to, when touch operation is small area of contact pattern, the spacing between the induction electrode of configuration is less, and now, the sampled data that scanning induction electrode obtains is more, thus can improve the touch sensible precision of touch control liquid crystal display device.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 a is a kind of touch control inducing method schematic flow sheet of the embodiment of the present application;
A kind of spacing configuration schematic diagram of preferred induction electrode when Fig. 1 b is finger normal touch;
Fig. 1 c is the sampled data schematic diagram that same touch operation adopts the spacing between different induction electrode and produces;
Fig. 1 d is the spacing configuration principle schematic between induction electrode;
Fig. 1 e be finger or other conductor touch sensible electrodes time structural representation;
Fig. 2 a is the another kind of touch control inducing method schematic flow sheet of the embodiment of the present application;
The sampled data that Fig. 2 b adopts the spacing between different induction electrodes to obtain when being two close finger touch;
Fig. 3 a is the another kind of touch control inducing method schematic flow sheet of the embodiment of the present application;
Fig. 3 b is the induction electrode spacing configuration schematic diagram of touch mode when simultaneously comprising large contact surface product module formula and small area of contact pattern,
Fig. 4 is the another kind of touch control inducing method schematic flow sheet of the embodiment of the present application;
Fig. 5 is the structural representation of a kind of touch-control sensing microprocessor of the embodiment of the present application.
Embodiment
The touch control inducing method that the application provides is applied to the touch control liquid crystal display device with dynamic induction channels, touch-control sensing part is accomplished liquid crystal display pixel is inner, realizing each display pixel can as the conception of a sensing unit, specifically as shown in figs. 1 d and 1e, public electrode 1 and signal electrode 2 mating reaction, make when realizing Presentation Function, set up electric field, control the deflection of liquid crystal molecule, when realizing mutual capacitance touch function, the drive motor in traditional mutual capacitance induction and receiving electrode can be served as, concrete, when being in touch detecting state, X-direction public electrode serves as drive motor, signal electrode serves as receiving electrode, now, coupling capacitance between the public electrode of X-direction and signal electrode is Cn1, when pointing or other conductors touch, coupling capacitance Cf is formed between drive motor and finger or other conductors, the Partial charge of drive electrode by finger or other conductors absorb, cause the coupling capacitance Cn2 between the public electrode of X-direction and signal electrode comparatively Cn1 diminish, signal intensity situation on detection signal electrode, no touch input can have been detected.
In practical application, the public electrode of some liquid crystal display pixel can be merged into a drive electrode, and some corresponding signal electrodes also can be merged into a receiving electrode, so can realize the dynamic-configuration of corresponding induction channels.
In theory, touch control liquid crystal display device can obtain the identical mutual capacitance sensed data with liquid crystal display precision, such as, liquid crystal display precision (resolution) is 1024*768, then maximum available mutual capacitance sensed data is also 1024*768, two induction electrodes that X-direction is adjacent, and the rectangle that forms of adjacent two induction electrodes of Y direction and induction channels, be designated as matrix M.If X-direction and Y direction all adopt 16 induction channels to combine, then the size of the Metzler matrix obtained is that 64*48(64 and 48 is liquid crystal display pixel number) obviously, the smallest dimension of Metzler matrix can be 1*1.
The embodiment of the present application provides a kind of touch control inducing method, be applied to touch control liquid crystal display device, described touch control liquid crystal display device comprises induction electrode, described method comprises, when the touch operation on described touch control liquid crystal display device being detected, judge the touch mode of touch operation, described touch mode comprises large contact surface product module formula and small area of contact pattern; Wherein, described large contact surface product module formula can be the situation of finger touch, and the small area of contact formula of touching can be that touch-control is than situation about touching.
When judge described touch mode be small area of contact pattern (such as, pointer touches) time, spacing between configuration induction electrode is the first preset pitch, described first preset pitch is less than the acquiescence spacing between induction electrode, then, according to the positional information of the spacing determination touch operation between the described induction electrode configured.This kind of touch control method, spacing between the type configuration induction electrode of foundation touch operation, when the type of touch operation is small area of contact type, the touch area corresponding due to the touch operation of small area of contact pattern is less, therefore the spacing configured between induction electrode is less, more sampled data can be obtained, thus improve the induction precision of touch control liquid crystal display device, and then make touch control liquid crystal display device meet complex calculations.
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
Refer to Fig. 1 a, show the schematic flow sheet of a kind of touch control inducing method of the embodiment of the present application, described touch control inducing method is applied to touch control liquid crystal display device, and described touch control liquid crystal display device at least comprises induction electrode.Said method comprising the steps of:
101, the touch mode of the touch operation on the described touch control liquid crystal display device that judgement detects; Described touch mode comprises large contact surface product module formula, small area of contact pattern.
Described large contact surface product module formula can be finger touch pattern, and described small area of contact pattern can be pointer touch mode.
During concrete enforcement, can judge touch mode according to the touch parameter of touch operation, touching parameter can for touching area, touching intensity.Different touch subjective roles is when touch control liquid crystal display device, and the touch area of generation is generally different, therefore, effectively can determine touch mode according to touch area.
102, when judging that described touch mode is small area of contact pattern, the spacing between configuration induction electrode is the first preset pitch; Described first preset pitch is less than the acquiescence spacing between induction electrode.
When judge touch operation be pointer touch time, because the touch area of generation when pointer touches is less, configure less induction electrode spacing, sampled data corresponding to touch operation is more, thus improves the induction precision of touch control liquid crystal display device.
It should be noted that, under high-precision applications condition (such as, near induction, Face datection etc.), also need the spacing of induction electrode to be configured to Small Distance, to improve the touch precision of touch control liquid crystal display device.
103, when judging that described touch mode is large contact surface product module formula, the spacing between configuration induction electrode is the second preset pitch; Described second preset pitch is greater than described first preset pitch.
The contact area produced due to finger touch pattern is comparatively large, therefore, when judging that touch operation is finger touch, prepare larger induction electrode spacing, like this, sampled data corresponding to touch operation is less, operand is less, reduces the power consumption of hardware, and can avoid interference operation.
Preferably, when specifically implementing, this step can be: between the induction electrode that the operating area that described touch operation is corresponding is corresponding, spacing is configured to the second preset pitch, and described second preset pitch is greater than described first preset pitch.As shown in Figure 1 b, touch area when touch area 1 is finger normal touch in figure, only the spacing of the induction electrode corresponding to the region of finger touch is configured to the second preset pitch, like this, the sampled data that scanning induction electrode obtains is less, data operation quantity is little, efficiently can process sampled data, accurate recognition touch location.
As shown in the figure, the second preset pitch is less than the acquiescence spacing between induction electrode.
It should be noted that, the second preset pitch can be greater than described acquiescence spacing, also can be less than described acquiescence spacing, specifically can determine according to actual conditions.
104, when judging that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, the spacing configured between described induction electrode is the first preset pitch.
When touch control liquid crystal display device exists pointer touch and finger touch two kinds of touch modes simultaneously, adopt less induction electrode spacing, to guarantee touch precision when pointer touches.
105, according to the spacing between the induction electrode configured, determine the positional information of touch operation.
After configuring the spacing between induction electrode, scanning induction electrode obtains the sampled data of touch operation, sampled data is calculated to the positional information of touch operation.
During concrete enforcement, this step can comprise following sub-step:
Induction electrode after A1, scanning disposition interval, obtains and touches sampled data.
A2, judge that the scan type of described induction electrode, described scan type comprise the scanning of induction electrode Large space and induction electrode Small Distance scans.
A3, when judge described scan type be induction electrode Large space scanning time, calculate the touch location of described touch operation according to described touch data, and described touch location be sent to described touch control liquid crystal display device host-processor.
This kind of situation is applicable to, the spacing of induction electrode is configured to the situation of Large space, sampled data now due to touch operation generation is less, data operation quantity is less, therefore using touch-control sensing microprocessor to complete data operation, the positional information of the touch operation determined is reported to host-processor by touch-control sensing microprocessor.
A4, when judge described scan type be induction electrode Small Distance scanning time, send to the main frame of described touch control liquid crystal display device to process described touch data, obtain the touch location of described touch operation.
This kind of situation is particularly useful for, the spacing of induction electrode is configured to closely spaced situation, due to Small Distance induction electrode scan time, the sampled data that touch operation produces is more, data operation quantity is also corresponding comparatively large, therefore the sampled data of acquisition can be transferred to host-processor (such as, the system CPU of smart machine) and carry out treatment and analysis, this kind of mode is applicable to various complex calculation, as Iamge Segmentation, edge extracting etc.
The touch control inducing method that the present embodiment provides, according to different touch modes, configures different induction electrode spacing, under little touch area mode, adopt induction electrode spacing, to obtain high accuracy data, under large contact surface product module formula, adopt larger induction electrode spacing, to reduce data volume, and avoid interference operation, when there is large contact surface product module formula and small area of contact pattern at the same time, adopt less induction electrode spacing, to guarantee the high accuracy data of small area of contact pattern.To sum up, described touch control inducing method can the spacing of dynamic-configuration induction electrode, to adapt to different touch mode, can meet the high-precision requirement of touch control liquid crystal display device, under large contact surface product module formula, can reduce power consumption, avoids interference again.
It should be noted that, dynamic mutual tolerance is adopted to respond in the touch control inducing method embodiment that the application provides, though make sensed data be multiplied, but require but to decline at double to data operation, refer to Fig. 1 c, show the sampled data schematic diagram that same touch operation adopts the spacing between different induction electrode to produce.
Traditional mutual tolerance induction, acquiescence spacing between induction electrode is for 5mm, the touch of general area (such as, 15mm) or the touch of larger area (such as, the data of 3 ~ 5 induction channels 25mm) can only be induced, because sampling precision is limited, need to use and ask the algorithm of center of gravity (such as, weighted mean) to calculate touch location corresponding to touch operation.For the touch of one direction 15mm size, if to represent 1mm(relevant with display device for 8 pixels, 128mm*96mm as corresponding in 1024*768 pixel, the application is all by this example), then 120 pixels that 15mm is corresponding.When sampling in the touch area of induction channels to this 15mm only by 3 5mm sizes, obtain the data of the solid line representative in Fig. 1 c; When sampling with the touch area of induction channels to this 15mm of 15 1mm sizes, obtain the data of the dotted line representative in Fig. 1 c; When sampling with 120 touch areas of passage to this 15mm, obtain the data of the open circles line representative shown in Fig. 1 c.By the situation generally touching accuracy requirement (+/-1mm) at present, adopt during 15 induction channels and can ask center of gravity computing by unnecessary carrying out, directly find out touch peak value and namely can meet accuracy requirement, still have the interval of 8 pixels between certain passage, weighted mean can make up the disappearance of these 8 pixels; When employing 120 passages, namely do not need completely to be weighted average calculating operation, directly find out and touch peak value, because be the upper limit that display device can show in these interval interior 120 pixels.Although therefore the dynamic mutual tolerance induction of the application makes the data of induction be multiplied, and but declines at double to the requirement of data operation.
Refer to Fig. 2 a, show the another kind of touch control inducing method schematic flow sheet of the embodiment of the present application, described touch control inducing method is applied to touch control liquid crystal display device, touch control liquid crystal display device at least comprises induction electrode, the embodiment corresponding with Fig. 1 a unlike, in the present embodiment, judge whether to need to configure the spacing between less induction electrode according to concrete touch situation under large contact surface product module formula, described touch control inducing method comprises the following steps:
201, the touch mode of the touch operation on the touch control liquid crystal display device that judgement detects; Described touch mode comprises large contact surface product module formula, small area of contact pattern.
Concrete, described large contact surface product module formula can be the situation of finger touch, and small area of contact pattern can be the situation that pointer touches.
202, when judging that described touch operation is small area of contact pattern, the spacing configured between described induction electrode is the first preset pitch, and described first preset pitch is less than the acquiescence spacing of described induction electrode.
203, when judging that described touch operation is large contact surface product module formula, judging whether the touch area that described touch operation produces meets pre-conditioned, if so, then performing step 204, otherwise, perform step 205.
204, the spacing between configuration induction electrode is the first preset pitch.
In the condition not easily differentiated (such as; many fingers by force unsettled, many fingers close up or whole finger is placed on the situations such as the surface of touch control liquid crystal display device) under; also need to configure less induction electrode spacing; obtain more sampled data, accurately to identify the gesture of touch operation or to provide enough information for image recognition.
During concrete enforcement, first touch control liquid crystal display device induces touch data corresponding to touch operation by acquiescence induction electrode spacing, such as when all obtaining touch data within the scope of larger area, then judge that current service condition is the condition not easily differentiated, more closely spaced induction electrode spacing should be configured, to obtain enough information.
205, the spacing between configuration induction electrode is the second preset pitch.
Under the condition comparatively easily differentiated, under finger touch pattern, the spacing between configuration induction electrode is larger spacing, to reduce sampled data, reduces hardware power consumption, and avoids interference operation.
206, when judging that touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, the spacing of configuration induction electrode is the first preset pitch.
When touch control liquid crystal display device exists pointer touch and finger touch two kinds of touch modes simultaneously, adopt less induction electrode spacing, to guarantee touch precision when pointer touches.
207, according to the spacing between the induction electrode configured, determine the positional information of touch operation.
After configuring the spacing between induction electrode, scanning induction electrode obtains the sampled data of touch operation, sampled data is calculated to the positional information of touch operation.
In the touch control inducing method that the present embodiment provides, when judging that touch operation is large contact surface product module formula, it is further that to judge whether touch operation meets pre-conditioned, determine whether to need to configure the spacing between less induction electrode, improve touch precision and the dirigibility of touch control liquid crystal display device.
The sampled data obtained due to traditional mutual capacitance induction technology is less, therefore complex calculations cannot be met (such as, figure is split), segmentation just can reach border and the shape of identification touch operation, or even the feature of finger, more sparse sampled data cannot support this type of computing, and the dynamic mutual tolerance induction technology (spacing of dynamic-configuration induction electrode) that the application provides can meet above-mentioned various complex calculation, support complicated figure identification, when touching precision and being enough high, the sampling attenuation that gap between finger is corresponding can be picked out, specifically as shown in Figure 2 b, the sampled data adopting the spacing between different induction electrodes to obtain during two close finger touch, when use 3 induction channels (spacing between induction electrode is larger), two close fingers induce three data, the data of the solid line representative namely in Fig. 2 b, now, not easily judge it is two adjacent fingers actually, or the large finger that is more flat, when use 120 induction channels (spacing between induction electrode is less), if obtain the A data of middle not obviously decay, the i.e. data of figure dotted line representative, then be shown to be a more flat large finger, the B data that there is obviously decay centre if obtain, namely the data of figure hollow core circle representative, be then shown to be two fingers adjacent.Above-mentioned example shows, the dynamic mutual tolerance induction technology utilizing the application to provide carefully can be distinguished and touch the shape of image and border (such as, several finger tip side by side or a finger kept flat),
Several finger tip side by side or a finger kept flat, the dynamic mutual tolerance induction technology that can be provided by the application is carefully distinguished, spacing when between the induction electrode using acquiescence, matrix M is 24*16, when multiple possible touch being detected in matrix M, the spacing of induction electrode can be converted, such as, the direction of comparing dispersion in touch adopts dynamic mutual tolerance to respond to, the direction of relatively concentrating in touch even can adopt an induction channels, several touches close to each other can not be accurately judged in the matrix of 24*16 dimension, in the matrix of 1024*1 dimension, then be identified as and independently touch, if a finger kept flat, then in the matrix of 1024*1 dimension, still continually varying data can be induced.Dynamic mutual tolerance induction technology exist not easily differentiate or abnormal touch situation time, can effective auxiliary judgment.Under acquiescence or high precision induction situation, because sensitivity is higher, all likely cause false triggering, such as a finger is nearby not intended to be recognized as one when brandishing near action, now, if the spacing of induction electrode is become large, then sensitivity significantly reduces, and only has more weak sensed data, not easily cause false triggering in corresponding region, meanwhile, power consumption and the operation time of system is also effectively reduced.
The resolution of touching induction region can significantly improve by the dynamic mutual tolerance induction that the embodiment of the present application provides, basic Iamge Segmentation and matching can be carried out, extract the touch image real information of touch operation generation (such as, during finger normal touch, touch the image that image is a sub-elliptical), further analysis obtains the form parameter information of touch image (such as, oval border, major axis a, minor axis b, the relevant information of the elliptical shapes such as inclination angle), known by these form parameter information, an obvious inharmonic touch image of major and minor axis ratio, an effective finger touch operation scarcely, can also by carrying out with increasing to the change at inclination angle, to realize the gesture operation pointing original place rotation.
Refer to Fig. 3 a, show the schematic flow sheet of the another kind of touch control inducing method of the application, the method is applied to touch control liquid crystal display device, described touch control liquid crystal display device at least comprises induction electrode, with the embodiment shown in Fig. 1 a unlike, in the present embodiment, when judging that touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, adopt different induction electrode spacing in different touch areas, described touch control inducing method comprises the following steps:
301, when the touch operation on described touch control liquid crystal display device being detected, judge the touch mode of described touch operation; Described touch mode comprises large contact surface product module formula, small area of contact pattern.
Described large contact surface product module formula can be finger touch pattern, and described small area of contact pattern can be pointer touch mode.
During concrete enforcement, can judge touch mode according to the touch parameter of touch operation, touching parameter can for touching area, touching intensity.
302, when judging that described touch mode is small area of contact pattern, the spacing between configuration induction electrode is the first preset pitch; Described first preset pitch is less than the acquiescence spacing between induction electrode.
When judge touch operation be pointer touch time, because the touch area of generation when pointer touches is less, configure less induction electrode spacing, sampled data corresponding to touch operation is more, thus improves the induction precision of touch control liquid crystal display device.
303, when judging that described touch mode is large contact surface product module formula, the spacing between configuration induction electrode is the second preset pitch; Described second preset pitch is greater than described first preset pitch.
The contact area produced due to finger touch pattern is comparatively large, therefore, when judging that touch operation is finger touch, prepare larger induction electrode spacing, like this, sampled data corresponding to touch operation is less, operand is less, reduces the power consumption of hardware, and can avoid interference operation.
304, when judging that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, in the touch area of touch operation corresponding to described large contact surface product module formula, the spacing configured between described induction electrode is the 3rd preset pitch; In the touch area of touch operation corresponding to described small area of contact pattern, the spacing configured between described induction electrode is the 4th preset pitch;
Wherein, described 3rd preset pitch is greater than described 4th preset pitch.
Described 3rd preset pitch can be identical with the numerical value of described second preset pitch, also can be different; Described 4th preset pitch can be identical with the numerical value of described first preset pitch, also can be different.
Concrete, Fig. 3 b shows induction electrode spacing configuration schematic diagram when touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, as shown in Figure 3 b, touch area 1 is the touch area of pointer touch correspondence, and touch area 2 is the touch area that finger touch is corresponding.The spacing configuring induction electrode in touch area 1 is the 4th preset pitch (less induction electrode spacing), and the spacing configuring induction electrode in touch area 2 is the 3rd preset pitch (larger induction electrode spacing).
Because in most hand and the simultaneous situation of pointer, hand is just as supporting, and not touch operation effectively, therefore can touch according to hand the touch area produced and carry out auxiliary judgment, specific as follows:
When the touch area that hand touches generation is less than preset area, judge that described hand touch operation may be an effective touch operation, now, induction electrode spacing can not be excessive;
When the touch area that hand touches generation is greater than preset area, judge that described hand touch operation is an invalid touch operation, now, the spacing of induction electrode can be configured to larger spacing.
This step shows, in same scan cycle, the spacing of induction electrode can arbitrary disposition, can be unequal numerical value.
305, according to the spacing between the induction electrode configured, determine the positional information of touch operation.
After configuring the spacing between induction electrode, scanning induction electrode obtains the sampled data of touch operation, sampled data is calculated to the positional information of touch operation.
The touch control inducing method that the present embodiment provides, when judging that touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, to two kinds of different touch modes, configure different induction electrode spacing, concrete, in the touch area that the touch operation that large contact surface product module formula (finger touch) is corresponding produces, adopt larger induction electrode spacing, avoid when all adopting less induction electrode spacing, the phenomenon that large touching surface product module formula produces a large amount of sampled datas occurs, thus decrease data operation quantity, reduce hardware power consumption; In the touch area that the touch operation that small area of contact pattern (pointer touch) is corresponding produces, adopt less induction electrode spacing, to obtain high accuracy data, improve the induction precision of touch control liquid crystal display device.
Refer to Fig. 4 and show the another kind of touch control inducing method schematic flow sheet of the embodiment of the present application, the method is applied to touch control liquid crystal display device, described touch control liquid crystal display device at least comprises induction electrode, the embodiment corresponding with Fig. 2 a unlike, in the present embodiment, when judging that touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, adopt different induction electrode spacing in different touch areas, described touch control inducing method comprises the following steps:
401, when the touch operation on touch control liquid crystal display device being detected, judge the touch mode of described touch operation; Described touch mode comprises large contact surface product module formula, small area of contact pattern.
Concrete, described large contact surface product module formula can be the situation of finger touch, and small area of contact pattern can be the situation that pointer touches.
402, when judging that described touch operation is small area of contact pattern, the spacing configured between described induction electrode is the first preset pitch, and described first preset pitch is less than the acquiescence spacing of described induction electrode.
403, when judging that described touch operation is large contact surface product module formula, judging whether the touch area that described touch operation produces meets pre-conditioned, if so, then performing step 404, otherwise, perform step 405.
Concrete, when described touch operation is finger touch, and when the touch area that touch operation produces meets pre-conditioned,
404, the spacing between configuration induction electrode is the first preset pitch.
In the condition not easily differentiated (such as; many fingers by force unsettled, many fingers close up or whole finger is placed on the situations such as the surface of touch control liquid crystal display device) under; also can configure less induction electrode spacing, obtain more sampled data, accurately to identify touch operation.
405, the spacing between configuration induction electrode is the second preset pitch.
Under the condition comparatively easily differentiated, under finger touch pattern, the spacing between configuration induction electrode is larger spacing, to reduce sampled data, reduces hardware power consumption, and avoids interference operation.
406, when judging that touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, in the touch area of touch operation corresponding to described large contact surface product module formula, the spacing configured between described induction electrode is the 3rd preset pitch; In the touch area of touch operation corresponding to described small area of contact pattern, the spacing configured between described induction electrode is the 4th preset pitch;
Wherein, described 3rd preset pitch is greater than described 4th preset pitch.
Described 3rd preset pitch can be identical with the numerical value of described second preset pitch, also can be different; Described 4th preset pitch can be identical with the numerical value of described first preset pitch, also can be different.
407, according to the spacing between the induction electrode configured, the positional information of touch operation is determined.
After configuring the spacing between induction electrode, scanning induction electrode obtains the sampled data of touch operation, sampled data is calculated to the positional information of touch operation.
The touch control inducing method that the present embodiment provides, when judging that touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, to two kinds of different touch modes, configure different induction electrode spacing, concrete, in the touch area that the touch operation that large contact surface product module formula (finger touch) is corresponding produces, adopt larger induction electrode spacing, avoid when all adopting less induction electrode spacing, the phenomenon that large touching surface product module formula produces a large amount of sampled datas occurs, thus decrease data operation quantity, reduce hardware power consumption; In the touch area that the touch operation that small area of contact pattern (pointer touch) is corresponding produces, adopt less induction electrode spacing, to obtain high accuracy data, improve the induction precision of touch control liquid crystal display device.
Corresponding to embodiment of the method above, the application also provides a kind of touch-control sensing microprocessor.
Refer to Fig. 5, show the structural representation of a kind of touch-control sensing microprocessor of the embodiment of the present application, described touch-control sensing microprocessor comprises: touch mode judging unit 501, spacing dispensing unit 502, touch location determining unit 503.
Touch mode judging unit 501, for judging the touch mode of the touch operation on the touch control liquid crystal display device detected; Wherein, described touch mode comprises large contact surface product module formula, small area of contact pattern.
During concrete enforcement, touch mode judging unit 501 can comprise acquiring unit 5011, first determining unit 5012, wherein:
Acquiring unit 5011, for obtaining the touch index parameter of described touch operation, described touch index parameter comprises touch area, the touch intensity of touch operation.
First determining unit 5012, for determining the touch mode of described touch operation according to described touch index parameter.
Spacing dispensing unit 502, for when judging that described touch operation is small area of contact pattern, the spacing configured between described induction electrode is the first preset pitch; Wherein, described first preset pitch is less than the acquiescence spacing of described induction electrode.
During concrete enforcement, spacing dispensing unit 502 also for, when judging that described touch mode is large contact surface product module formula, the spacing configured between described induction electrode is the second preset pitch; Wherein, described second preset pitch is greater than described first preset pitch.
Spacing dispensing unit 502 also for, when judging that described touch mode is large contact surface product module formula, continue judge that described touch area meets pre-conditioned, then the spacing configured between described induction electrode is the first preset pitch; It is described pre-conditioned if judge, described touch area does not meet, then the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch.
Spacing dispensing unit 502 also for, when judging that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, the spacing configuring described induction electrode is the first preset pitch.
Spacing dispensing unit 502 also for, when detecting that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, in the touch area of touch operation corresponding to described large contact surface product module formula, the spacing configured between described induction electrode is the 3rd preset pitch; In the touch area of touch operation corresponding to described small area of contact pattern, the spacing drained between described induction electrode is the 4th preset pitch; Wherein, described 3rd preset pitch is greater than described 4th preset pitch.
Touch location determining unit 503, for the spacing between the described induction electrode according to configuration, determines the positional information of described touch operation.
During concrete enforcement, touch location determining unit 503 can comprise: data capture unit 5031, scan type judging unit 5032, computing unit 5033, data transmission unit 5034, wherein:
Data capture unit 5031, for the described induction electrode after scanning disposition interval, obtains and touches sampled data;
Scan type judging unit 5032, for judging the scan type of described induction electrode, described scan type comprises the scanning of induction electrode Large space and the scanning of induction electrode Small Distance;
Computing unit 5033, for when judging that described scan type is the scanning of induction electrode Large space, calculating the touch location searching out touch operation, and described touch location is sent to described touch control liquid crystal display device main frame according to described touch data;
Due in Large space scanning situation, the sampled data of touch operation is less, and data operation quantity is corresponding less, and the arithmetic capability of touch-control sensing microprocessor can meet the computing of sampled data, this kind of mode fast operation.
Data transmission unit 5034, for when judging that described scan type is the scanning of induction electrode Small Distance, sending to the main frame of described touch control liquid crystal display device to process described touch data, obtaining the touch location of described touch operation.
Due in Small Distance scanning situation, the sampled data of touch operation is more, and data operation quantity is corresponding comparatively large, and the arithmetic capability of touch-control sensing microprocessor cannot meet the computing of sampled data, now, need sampling data transmitting to be delivered to host-processor and carry out analyzing and processing.
The touch-control sensing microprocessor that the present embodiment provides, can the spacing of dynamic-configuration induction electrode, flexible configuration, and can switch between different touch modes, to meet various application demand.
Corresponding to above-mentioned touch-control sensing microprocessor, the application also provides a kind of touch control liquid crystal display device.
Described touch control liquid crystal display device at least comprises: the display screen overlapped and induction electrode, and the touch-control sensing microprocessor that above-described embodiment provides, wherein, described touch-control sensing microprocessor, for the spacing of the touch mode dynamic-configuration induction electrode according to touch operation, and can switch between different touch modes, then, according to the spacing of the induction electrode after configuration, determine the positional information of touch operation.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (14)
1. a touch control inducing method, is applied to touch control liquid crystal display device, and described touch control liquid crystal display device at least comprises induction electrode, it is characterized in that, comprising:
When the touch operation on described touch control liquid crystal display device being detected, judge the touch mode of described touch operation, described touch mode comprises large contact surface product module formula, small area of contact pattern;
When judging that described touch operation is small area of contact pattern, the spacing configured between described induction electrode is the first preset pitch, and described first preset pitch is less than the acquiescence spacing of described induction electrode;
When judging that described touch mode is large contact surface product module formula, if judge, described touch area meets pre-conditioned, then the spacing configured between described induction electrode is the first preset pitch; It is described pre-conditioned if judge, described touch area does not meet, then the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch;
According to the spacing between the described induction electrode configured, determine the positional information of described touch operation.
2. method according to claim 1, is characterized in that, described determine the positional information of described touch operation before also comprise:
When judging that described touch mode is large contact surface product module formula, the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch.
3. method according to claim 2, is characterized in that, described when judging that described touch mode is large contact surface product module formula, and the spacing configured between described induction electrode is the second preset pitch, is specially:
Spacing between the described induction electrode that the touch area that described touch operation is corresponding is corresponding is configured to the second preset pitch, and described second preset pitch is greater than described first preset pitch.
4. the method according to any one of claim 1-3, is characterized in that, described determine the positional information of described touch operation before also comprise:
When judging that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, the spacing configuring described induction electrode is the first preset pitch.
5. the method according to any one of claim 1-3, it is characterized in that, described determine the positional information of described touch operation before also comprise: when detecting that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, in the touch area of touch operation corresponding to described large contact surface product module formula, the spacing configured between described induction electrode is the 3rd preset pitch; In the touch area of touch operation corresponding to described small area of contact pattern, the spacing configured between described induction electrode is the 4th preset pitch; Wherein, described 3rd preset pitch is greater than described 4th preset pitch.
6. method according to claim 1, is characterized in that, the touch mode of the described touch operation of described judgement is specially:
Obtain the touch index parameter of described touch operation, described touch index parameter comprises touch area, the touch intensity of touch operation;
The touch mode of described touch operation is determined according to described touch index parameter.
7. method according to claim 1, is characterized in that, describedly determines that the positional information of described touch operation specifically comprises:
Described induction electrode after scanning disposition interval, obtains and touches sampled data;
Judge the scan type of described induction electrode, described scan type comprises the scanning of induction electrode Large space and the scanning of induction electrode Small Distance;
When judging that described scan type is the scanning of induction electrode Large space, calculating the touch location of described touch operation according to described touch data, and described touch location is sent to described touch control liquid crystal display device main frame;
When judging that described scan type is the scanning of induction electrode Small Distance, sending to the main frame of described touch control liquid crystal display device to process described touch data, obtaining the touch location of described touch operation.
8. a touch-control sensing microprocessor, is applied to touch control liquid crystal display device, and described touch control liquid crystal display device at least comprises induction electrode, it is characterized in that, comprising: touch mode judging unit, spacing dispensing unit, touch location determining unit;
Described touch mode judging unit, for judging the touch mode of the touch operation on the touch control liquid crystal display device detected, described touch mode comprises large contact surface product module formula, small area of contact pattern;
Described spacing dispensing unit, for when judging that described touch operation is small area of contact pattern, the spacing configured between described induction electrode is the first preset pitch, and described first preset pitch is less than the acquiescence spacing of described induction electrode;
Described spacing dispensing unit also for, when judging that described touch mode is large contact surface product module formula, if judge, described touch area meets pre-conditioned, then the spacing configured between described induction electrode is the first preset pitch; It is described pre-conditioned if judge, described touch area does not meet, then the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch;
Described touch location determining unit, for the spacing between the described induction electrode according to configuration, determines the positional information of described touch operation.
9. touch-control sensing microprocessor according to claim 8, is characterized in that, described spacing dispensing unit also for,
When judging that described touch mode is large contact surface product module formula, the spacing configured between described induction electrode is the second preset pitch, and described second preset pitch is greater than described first preset pitch.
10. the touch-control sensing microprocessor according to Claim 8 described in-9 any one, it is characterized in that, described spacing dispensing unit also for, when judging that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, the spacing configuring described induction electrode is the first preset pitch.
11. touch-control sensing microprocessors according to Claim 8 described in-9 any one, it is characterized in that, described spacing dispensing unit also for, when detecting that described touch mode comprises large contact surface product module formula and small area of contact pattern simultaneously, in the touch area of touch operation corresponding to described large contact surface product module formula, the spacing configured between described induction electrode is the 3rd preset pitch; In the touch area of touch operation corresponding to described small area of contact pattern, the spacing drained between described induction electrode is the 4th preset pitch; Wherein, described 3rd preset pitch is greater than described 4th preset pitch.
12. touch-control sensing microprocessors according to claim 8, is characterized in that, described touch mode judging unit specifically comprises: acquiring unit and the first determining unit;
Described acquiring unit, for obtaining the touch index parameter of described touch operation, described touch index parameter comprises touch area, the touch intensity of touch operation;
Described first determining unit, for determining the touch mode of described touch operation according to described touch index parameter.
13. touch-control sensing microprocessors according to claim 8, is characterized in that, described touch location determining unit specifically comprises:
Data capture unit, for the described induction electrode after scanning disposition interval, obtains and touches sampled data;
Scan type judging unit, for judging the scan type of described induction electrode, described scan type comprises the scanning of induction electrode Large space and the scanning of induction electrode Small Distance;
Computing unit, for when judging that described scan type is the scanning of induction electrode Large space, calculating the touch location searching out touch operation, and described touch location is sent to the main frame of described touch control liquid crystal display device according to described touch data;
Data transmission unit, for when judging that described scan type is the scanning of induction electrode Small Distance, sending to the main frame of described touch control liquid crystal display device to process described touch data, obtaining the touch location of described touch operation.
14. 1 kinds of touch control liquid crystal display devices, is characterized in that, comprising: the display screen overlapped and induction electrode, and the touch-control sensing microprocessor described in any one of claim 8-13;
Described touch-control sensing microprocessor, for configuring the spacing of described induction electrode according to the touch mode of touch operation, and according to the spacing of the induction electrode after configuration, determines the positional information of described touch operation.
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| CN107122072A (en) * | 2016-02-25 | 2017-09-01 | 原相科技股份有限公司 | Three-dimension gesture method for sensing and use its touch sensing device |
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| TW201040818A (en) * | 2009-05-08 | 2010-11-16 | Sintek Photronic Corp | Capacitive touch panel structure with high optical uniformity |
| CN103207718A (en) * | 2013-03-18 | 2013-07-17 | 敦泰科技有限公司 | Mutual capacitance touch screen and touch sensing method thereof |
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| TW201040818A (en) * | 2009-05-08 | 2010-11-16 | Sintek Photronic Corp | Capacitive touch panel structure with high optical uniformity |
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