CN108762565B - Capacitive touch method and device - Google Patents
Capacitive touch method and device Download PDFInfo
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- CN108762565B CN108762565B CN201810541384.6A CN201810541384A CN108762565B CN 108762565 B CN108762565 B CN 108762565B CN 201810541384 A CN201810541384 A CN 201810541384A CN 108762565 B CN108762565 B CN 108762565B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04101—2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
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Abstract
The invention discloses a capacitive touch method and a capacitive touch device, which are applied to a capacitive touch panel, wherein the capacitive touch panel comprises a single-layer electrode layer; the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form; the method comprises the following steps: acquiring a target floating touch height; determining a target size parameter of the sensing unit matched with the target floating touch height; and carrying out short circuit control on each electrode plate according to the target size parameters so as to divide the single-layer electrode layer into a plurality of target induction units meeting the target size parameters. Through the technical scheme, the optimal suspension touch control height can be ensured under different application scenes, namely, the touch control effect under different suspension touch control heights is ensured.
Description
Technical Field
The present invention relates to the field of floating touch technologies, and in particular, to a capacitive touch method and device.
Background
Gesture induction, also called, touch-free science and technology, accomplishes a series of controls mainly through the operation gesture of various sensors response processing users on the electronic equipment. An important technology for realizing gesture sensing is a floating touch technology.
The floating touch technology detects a touch position of a user performing a touch operation on a touch panel through a capacitive touch device. The capacitive touch device works through the capacitance change of each sensing unit on the touch panel. When a touch object (such as a finger) approaches the touch panel, the capacitance of the sensing unit corresponding to the position of the touch object changes, so that the position of the touch object, namely the touch position, can be determined by detecting the capacitance change of each sensing unit.
In practical application, the requirements for the floating touch height are different in different scenes. In the related art, once the touch panel is manufactured, the optimal floating touch height is fixed, which is difficult to adapt to application requirements of different scenes.
Disclosure of Invention
The invention provides a capacitive touch method and a capacitive touch device, which are used for adjusting the area of a sensing unit according to a target floating touch height, so that the application requirements on the floating touch height in different scenes are met.
The first aspect of the present invention provides a capacitive touch method applied to a capacitive touch panel, where the capacitive touch panel includes a single electrode layer; the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form;
the method comprises the following steps:
acquiring a target floating touch height;
determining a target size parameter of the sensing unit matched with the target floating touch height; the target dimension parameter is one or more parameters for characterizing the currently required dimension of the sensing unit.
Optionally, the target size parameter includes at least one of:
the target sensing unit comprises a target number of electrode plates, a target area, a target length-width ratio and a target shape.
And carrying out short circuit control on each electrode plate according to the target size parameters so as to divide the single-layer electrode layer into a plurality of target induction units meeting the target size parameters.
In this embodiment, when there is a requirement for the floating touch height, the target floating touch height may be obtained, and then the target size parameter matched with the target floating touch height may be determined according to the target floating touch height, so as to meet the application requirement for the floating touch height in different scenarios, and ensure that the optimal floating touch height may be obtained in different application scenarios.
Optionally, the determining a target size parameter of the sensing unit matched with the target floating touch height includes:
acquiring a first corresponding relation between a preset floating touch height and a size parameter of an induction unit, wherein the preset floating touch height is positively correlated with the size parameter;
and determining a target size parameter of the sensing unit matched with the target floating touch height according to the first corresponding relation.
In this embodiment, under the application requirement without considering the position resolution of the touch panel, the target floating touch height may be positively correlated with the size parameters such as the target number of electrode plates included in the sensing unit and the target area of the sensing unit, that is, the higher the target floating touch height is, the larger the target number and the target area matched with the target floating touch height are, and conversely, the lower the target floating touch height is, the smaller the target number and the target area matched with the target floating touch height are. Therefore, according to the first corresponding relation between the preset floating touch height and the size parameters of the induction unit, the target size parameters of the induction unit matched with the target floating touch height can be determined, and therefore the optimal floating touch height can be ensured in different application scenes.
Optionally, the obtaining a first corresponding relationship between the preset floating touch height and the size parameter of the sensing unit includes:
receiving a parameter setting command;
and setting a first corresponding relation between the preset floating touch height and the size parameter of the induction unit according to the parameter setting command.
In this embodiment, a first corresponding relationship between the preset floating touch height and the size parameter of the sensing unit may be preset, so that the target size parameter to which the sensing unit should be adjusted is determined according to the target floating touch height, and thus, the optimal floating touch height is ensured under different application requirements.
Optionally, the determining a target size parameter of the sensing unit matched with the target floating touch height includes:
acquiring a second corresponding relation among a preset suspension touch height, a size parameter and a position resolution of the induction unit;
and determining a target size parameter of the sensing unit which is matched with the target floating touch height and has the highest position resolution according to the second corresponding relation.
In this embodiment, under the application requirement that the position resolution and the floating touch height of the touch panel need to be considered, a second corresponding relationship among the preset floating touch height, the size parameter of the sensing unit, and the position resolution may be obtained, and then the target size parameter of the sensing unit that is matched with the target floating touch height and has the highest position resolution may be determined according to the second corresponding relationship, so that the target floating touch height and the position resolution are considered at the same time.
Optionally, the obtaining a second corresponding relationship between the preset floating touch height, the size parameter of the sensing unit, and the position resolution includes:
acquiring a plurality of preset floating touch heights and size parameters of a plurality of induction units;
and respectively measuring the position resolution of the touch panel corresponding to each size parameter under each preset floating touch height to obtain the second corresponding relation.
In this embodiment, according to the multiple preset floating touch heights and the size parameters of the multiple sensing units, the position resolution of the touch panel corresponding to each size parameter at each preset floating touch height may be measured in advance to obtain a second corresponding relationship, so as to facilitate subsequent determination of the target size parameter of the sensing unit directly according to the corresponding relationship.
Optionally, the step of measuring the position resolution of the touch panel corresponding to each size parameter under each preset floating touch height includes:
respectively determining a preset measurement point group aiming at each size parameter under each preset suspension touch height; the preset measurement point group comprises a plurality of touch-controllable points with incompletely same intervals in the induction area of the touch panel under corresponding preset floating touch height and size parameters;
respectively aiming at each size parameter under each preset floating touch height, acquiring a self-inductance capacitance value set of the touch panel when a touch object touches each preset measuring point; the self-inductance capacitance value group comprises self-inductance capacitance values of all target sensing units in the touch panel;
and determining the position resolution of the touch panel corresponding to each preset floating touch height and size parameter according to the capacitance variation between the self-inductance capacitance value groups corresponding to each preset measuring point and the distance between each preset measuring point.
In this embodiment, the preset floating touch height and the target size parameter may be multiple at the same time, so that a preset measurement point group may be determined for each target size parameter at each preset floating touch height, the preset measurement point group includes multiple touchable points with different distances in the sensing area of the touch panel at the corresponding preset floating touch height and the target size parameter, and the third position resolution of the touch panel corresponding to each preset floating touch height and the target size parameter is measured according to the preset measurement point group. For different target size parameters and preset floating touch heights, the corresponding preset measurement point groups can be completely the same or different. Therefore, the target size parameter can be conveniently determined according to the preset floating touch height, the target size parameter and the position resolution of the touch panel corresponding to the target size parameter.
Optionally, the target size parameter includes at least one of:
the target sensing unit comprises a target number of electrode plates, a target area, a target length-width ratio and a target shape.
Optionally, the obtaining the target floating touch height includes:
receiving a target floating touch height input by a user; or alternatively.
Acquiring self-inductance capacitance values of all sensing units when a user executes suspension touch under the current target size parameter;
and determining the target floating touch control height according to the relation between the preset floating touch control height and the self-inductance capacitance value.
In this embodiment, the target hover touch height may be input by the user, or determined according to the user performing hover touch at the current target size, and the current hover touch height of the user is determined as the target hover touch height.
Optionally, the method further includes:
when touch operation is induced, acquiring a self-inductance capacitance value of each target induction unit in the single-layer electrode layer;
and determining the touch position of the touch operation according to the self-inductance capacitance value of each target sensing unit.
In this embodiment, when the touch operation is sensed, the self-inductance capacitance value of each target sensing unit in the single-layer electrode layer is obtained, and then the touch position of the touch operation is determined by comparing the self-inductance capacitance values of the target sensing units.
A second aspect of the present invention provides a capacitive touch device, which is applied to a capacitive touch panel, wherein the capacitive touch panel includes a single electrode layer; the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form;
the device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a target floating touch height;
determining a target size parameter of the sensing unit matched with the target floating touch height;
and carrying out short circuit control on each electrode plate according to the target size parameters so as to divide the single-layer electrode layer into a plurality of target induction units meeting the target size parameters.
Wherein the processor is further configured to implement the capacitive touch method of any of the above embodiments by executing executable instructions in the memory.
A third aspect of the present invention provides a computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, implement the above capacitive touch method.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram illustrating a touch principle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a touch principle according to an embodiment of the invention;
FIG. 3 is a schematic diagram illustrating touch of a touch object according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating touch of a touch object according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a capacitive touch method according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating another capacitive touch method according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a single electrode layer according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a single electrode layer according to an embodiment of the present invention;
FIG. 9 is a flowchart illustrating another capacitive touch method according to an embodiment of the present invention;
FIG. 10 is a schematic view of a single electrode layer according to another embodiment of the present invention;
FIG. 11 is a flowchart illustrating another capacitive touch method according to an embodiment of the present invention;
FIG. 12 is a schematic view of another single-layer electrode layer structure according to an embodiment of the present invention;
FIG. 13 is a flowchart illustrating another capacitive touch method according to an embodiment of the present invention;
FIG. 14 is a flowchart illustrating another capacitive touch method according to an embodiment of the present invention;
FIG. 15 is a flowchart illustrating another capacitive touch method according to an embodiment of the present invention;
FIG. 16 is a flowchart illustrating another capacitive touch method according to an embodiment of the present invention;
fig. 17 is a flowchart illustrating determining a second corresponding relationship in the capacitive touch method shown in fig. 16;
fig. 18 is a flowchart of another capacitive touch method according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
When designing a capacitive touch device, as shown in fig. 1, if a self-capacitance detection method is adopted, each sensing unit can emit a power line, and the power line is received by a ground terminal (i.e., a zero potential region) near the sensing unit, so that an electric field is generated between the sensing unit and the ground terminal to form a capacitive effect. Under the condition that no touch object is close to the touch panel, the obtained capacitance value is called as an initial capacitance value and is denoted as Cp.
According to the capacitive principle, the capacity of Cp is proportional to the area of the sensing element and inversely proportional to the distance from the sensing element to the ground terminal.
As shown in fig. 2, when a touch object (e.g., a finger) touches or approaches the sensing unit, the sensing unit and the touch object also generate an electric field and a corresponding capacitance. The capacitance obtained at this time is called a touch capacitance and is denoted as Cf.
According to the capacitance principle, the Cf is in direct proportion to the area of the sensing unit and in inverse proportion to the distance from the sensing unit to the touch object.
For each sensing unit, the actually detected capacitance value is the sum of the initial capacitance value and the touch capacitance value, which is called a self-inductance capacitance value corresponding to the sensing unit and is denoted as Cs, that is, Cs is Cp + Cf. In order to make the detection of the touch object more sensitive, the design concept is to make Cf larger as better, and Cp smaller as better.
During the research, the inventor finds that the following two ways exist for increasing Cf:
1) increase the area of the sensing unit
As shown in fig. 3, the 4 boxes are 4 electrode plates respectively, and the area shown by the circular box is a touch area where the touch object is mapped onto the electrode plates; the self-inductance capacitance values of the 4 sensing units in the diagram are respectively denoted as Cs1, Cs2, Cs3 and Cs4, and Cs1 is found (Cs2 ═ Cs3 ═ Cs4), that is, the position of the touch object is known to be in the sensing unit 1. If the area of a single sensing unit is too large, when the touch object moves slightly, the positions before and after the movement of the touch object may be always in the sensing unit 1, and then the total self-inductance capacitance values including Cs1 will not change, and the change of the position of the touch object cannot be sensed. Referring to fig. 4 (similar to fig. 3, the square frame in fig. 4 is an electrode plate, and the circular frame is a touch area), if the area of a single sensing unit is small, any small displacement of the touch object will cause the capacitance change of different sensing units, so that the position of the touch object can be accurately determined.
From the above analysis, it can be seen that:
if the area of the sensing unit increases, Cf increases, and the position resolution deteriorates.
When the area of the sensing unit is reduced, Cf is reduced and the position resolution is increased.
The position resolution described in this embodiment is the minimum displacement that can be detected by the touch panel.
2) Reducing the distance from the sensing unit to the touch object
In the floating touch application, the distance between the sensing unit and the touch object is called the floating touch height. In practical applications, if the height of the floating touch is too low, the direct touch control is approached, and the effect of the floating touch is lost. Therefore, the floating touch height should not be too low.
In terms of the capacitance principle, since the capacitance of Cf is proportional to the area of the sensing unit and inversely proportional to the distance from the sensing unit to the touch object, it can be inferred that the area of the sensing unit is proportional to the floating touch height under the condition that Cf is fixed.
In combination with the conclusion of the above mode 1), it can be seen that:
if the area of the sensing unit is increased, the position resolution is deteriorated, and the floating touch height is increased.
If the area of the sensing unit is reduced, the position resolution is increased, and the floating touch height is reduced.
As a conclusion, the position resolution and the hover touch height are mutually exclusive parameters. If a sensing unit with a small area is used to achieve a high position resolution, the floating touch can be performed only at a low height, and the real floating touch effect is lost.
In order to meet the floating touch height of the user under different application requirements, the embodiment provides a solution that the area size and the shape of the sensing unit can be changed according to the target floating touch height.
The first aspect of the present invention provides a capacitive touch method applied to a capacitive touch panel, where the capacitive touch panel includes a single electrode layer; the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form.
As shown in fig. 5, the method includes steps S501 to S503:
step S501, a target floating touch height is obtained.
Obtaining the target hover touch height may include: and receiving the target floating touch height input by the user. The method can also comprise the following steps: acquiring self-inductance capacitance values of all sensing units when a user executes suspension touch under the current target size parameter; and determining the target floating touch control height according to the relation between the preset floating touch control height and the self-inductance capacitance value.
In this embodiment, the target hover touch height may be input by the user, or may be determined according to the user performing hover touch at the current target size, that is, the current hover touch height of the user is determined as the target hover touch height.
Step S502, determining a target size parameter of the induction unit matched with the target floating touch height; the target dimension parameter is one or more parameters for characterizing the currently required dimension of the sensing unit.
Step S503, short circuit control is performed on each electrode plate according to the target dimension parameters, so that the single electrode layer is divided into a plurality of target sensing units meeting the target dimension parameters.
In this embodiment, when there is a requirement for the floating touch height, a target floating touch height may be obtained, and then a target size parameter matched with the target floating touch height is determined according to the target floating touch height, and a mutual short circuit relationship between electrode plates in the touch panel is changed according to the target size parameter, that is, the size of a single sensing unit in the touch panel is changed, so that application requirements for the floating touch height in different scenes are met, an optimal floating touch height in different application scenes is ensured, and an optimal floating touch effect is achieved.
In different embodiments, different types of parameters may be adopted as the target size parameter, including: the target sensing unit includes a target number of electrode plates, a target area, a target aspect ratio, and a target shape.
The following describes in detail a specific implementation of step S503 in the above technical solution by taking three different types of target dimension parameters as examples.
Example one
As shown in fig. 6, when the target dimension parameter includes the target number of electrode plates included in a single target sensing unit, the step S503 includes a step S601:
step S601, mutually short-circuiting each target number of adjacent electrode plates in the plurality of electrode plates arranged in a matrix form, and forming a target sensing unit by each group of electrode plates mutually short-circuited.
In this embodiment, when the target number of electrode plates included in the sensing unit matched with the target floating touch height is determined, adjacent electrode plates of each target number in the plurality of electrode plates arranged in a matrix form may be directly short-circuited with each other in one group, and each group of short-circuited electrode plates forms one target sensing unit, that is, the sensing unit matched with the target floating touch height. The target sensing units are different in size due to different target numbers, so that the size of the sensing units is directly changed according to the target numbers, and different requirements on the suspension touch control height in different application scenes are met.
Taking fig. 7 as an example, assuming that the single-layer electrode layer 400 includes 240 electrode plates arranged in a matrix form, and the target number of the electrode plates included in the sensing unit that matches the target floating touch height is 30, as shown in fig. 8, at this time, every 30 adjacent electrode plates are short-circuited with each other, and each group of the short-circuited electrode plates forms a target sensing unit 801, the single-layer electrode plate is divided into 8 target sensing units 801, and of course, if only the number of the sensing units is required, the adjacent electrode plates can be arbitrarily selected according to the target number to be short-circuited, and fig. 8 only shows one of the manners. If the shape or the aspect ratio of the sensing units is also required, the number and the shape of the targets or the number and the aspect ratio of the targets can be combined to further determine the target sensing units.
Example two
As shown in fig. 9, when the target dimension parameter includes the target area of the target sensing unit, the step S503 includes the step S901:
step S901, mutually short-circuiting a plurality of adjacent electrode plates whose area sum satisfies a target area into a group, where each group of electrode plates mutually short-circuited forms a target sensing unit.
In this embodiment, when the target area of the target sensing unit matched with the target floating touch height is determined, a plurality of adjacent electrode plates with the sum of the areas meeting the target area are mutually short-circuited into a group, and each group of mutually short-circuited electrode plates forms one target sensing unit. Therefore, the size of the sensing unit is changed according to the target area, and different requirements on the suspension touch control height in different application scenes are met.
Taking FIG. 7 as an example, it is assumed that the single electrode layer 400 includes 240 electrode plates arranged in a matrix form, and each electrode plate has an area of 0.25cm2And determining that the target area of the sensing unit matched with the target floating touch height is 3cm2If each target sensing unit includes 12 electrode plates, then as shown in fig. 10, each 12 adjacent electrode plates are short-circuited with each other, and each group is short-circuited with each otherIf the electrode plates form one target sensing unit 1001, the single-layer electrode plate is divided into 20 target sensing units 1001, and of course, if only the area of the sensing unit is required, the adjacent electrode plates can be arbitrarily selected according to the target area to perform mutual short circuit, and fig. 10 only shows one of the manners. If the shape or the aspect ratio of the sensing unit is also required, the target sensing unit can be further determined by combining the target area and the shape, or combining the target area and the aspect ratio.
EXAMPLE III
As shown in fig. 11, when the target size parameter includes a target aspect ratio of the target sensing unit, the step S503 includes a step S1101:
step S1101, mutually short-circuiting a plurality of adjacent electrode plates having a length-to-width ratio satisfying a target aspect ratio as a group, wherein each group of mutually short-circuited electrode plates forms a target sensing unit.
In this embodiment, when the target aspect ratio of the sensing unit matched with the target floating touch height is determined, the plurality of adjacent electrode plates with the length and width ratios meeting the target aspect ratio are further short-circuited to each other, and each group of short-circuited electrode plates form one target sensing unit, so that the size of the sensing unit is changed according to the target aspect ratio, thereby meeting different requirements on the floating touch height in different application scenarios.
Taking fig. 7 as an example, assuming that the single electrode layer 400 includes 240 electrode plates arranged in a matrix, the target aspect ratio of the sensing unit determined to be highly matched with the target floating touch is 2: 2, as shown in fig. 12, with a single electrode plate as a unit, the target sensing unit 1201 is a 2 × 2 electrode plate matrix, that is, two adjacent electrode plates in the horizontal and vertical directions are short-circuited to each other, respectively, to form one target sensing unit 1201. Of course, if only the aspect ratio of the sensing unit is required, the adjacent electrode plates can be arbitrarily selected to be shorted with each other by taking different numbers of electrode plates as units according to the target aspect ratio, fig. 12 only shows one way, and two electrode plates can also be taken as units, so that the sensing unit is a 4 × 4 electrode plate matrix. If the area or the number of the sensing units is also required, the target length-width ratio and the area or the target length-width ratio and the number can be combined to further determine the target sensing units.
Comparing the three floating touch heights in fig. 8, 10 and 12, the floating touch height in fig. 8 is the largest (i.e. the touch panel can detect touch operation in a higher height range), and the corresponding target sensing unit has the largest number of inter-shorted electrode plates, i.e. the area of the sensing unit is the largest; FIG. 10 shows a medium hover touch height, so the area of the target sensing unit is medium; in fig. 12, the floating touch height is the lowest (i.e. the touch panel can only detect touch operation in a lower height range), and the area of the target sensing unit is also smaller.
According to the difference of the preset floating touch height, the target size parameters of different sensing units can be determined, and according to the different requirements of the floating touch height and the position resolution, there may be a plurality of determination methods for the target size parameters (i.e., the step S502), two of which are described below.
In a first mode
As shown in fig. 13, optionally, the step S502 includes steps S1301-S1302:
step S1301, obtaining a first corresponding relationship between a preset floating touch height and a size parameter of the sensing unit, wherein the preset floating touch height is positively correlated with the size parameter;
step S1302, determining a target size parameter of the sensing unit matched with the target floating touch height according to the first corresponding relationship.
In this embodiment, under the application requirement without considering the position resolution of the touch panel, the target floating touch height may be positively correlated with the size parameters such as the target number of electrode plates included in the sensing unit and the target area of the sensing unit, that is, the higher the target floating touch height is, the larger the target number and the target area matched with the target floating touch height are, and conversely, the lower the target floating touch height is, the smaller the target number and the target area matched with the target floating touch height are. Therefore, according to the first corresponding relation between the preset floating touch height and the size parameters of the induction unit, the target size parameters of the induction unit matched with the target floating touch height can be determined, and therefore the optimal floating touch height can be ensured in different application scenes.
Optionally, as shown in fig. 14, the step S1301 includes steps S1401 to S1402:
step S1401, receiving a parameter setting command;
step S1402 is to set a first corresponding relationship between the preset floating touch height and the size parameter of the sensing unit according to the parameter setting command.
In this embodiment, a first corresponding relationship between the preset floating touch height and the size parameter of the sensing unit may be preset, so that the target size parameter to which the sensing unit should be adjusted is determined according to the target floating touch height, and thus, the optimal floating touch height is ensured under different application requirements.
Mode two
As shown in fig. 15, optionally, the step S502 includes steps S1501 to S1502:
step S1501, acquiring a second corresponding relation among a preset floating touch height, a size parameter and a position resolution of an induction unit;
step S1502 determines a target size parameter of the sensing unit with the highest position resolution and height matching with the target floating touch according to the second corresponding relationship.
In this embodiment, under the application requirement that the position resolution and the floating touch height of the touch panel need to be considered, a second corresponding relationship among the preset floating touch height, the size parameter of the sensing unit, and the position resolution may be obtained, and then the target size parameter of the sensing unit that is matched with the target floating touch height and has the highest position resolution may be determined according to the second corresponding relationship, so as to meet the requirements of both the target floating touch height and the position resolution.
As shown in fig. 16, optionally, the step S1501 includes steps S1601 to S1602:
step S1601, obtaining a plurality of preset floating touch heights and size parameters of a plurality of induction units;
step S1602, respectively measuring the position resolution of the touch panel corresponding to each size parameter at each preset floating touch height to obtain a second corresponding relationship.
In this embodiment, according to the multiple preset floating touch heights and the size parameters of the multiple sensing units, the position resolution of the touch panel corresponding to each size parameter at each preset floating touch height may be measured in advance to obtain a second corresponding relationship, so as to facilitate subsequent determination of the target size parameter of the sensing unit directly according to the corresponding relationship.
As shown in fig. 17, optionally, the step S1602 includes steps S1701 to S1703:
step 1701, determining a preset measurement point group for each size parameter under each preset floating touch height; the preset measurement point group comprises a plurality of touch-controllable points (namely preset measurement points) with incompletely same intervals in the induction area of the touch panel under corresponding preset floating touch height and size parameters;
for example, for a preset hover touch height H1And a target size parameter S1Determining the predetermined set of measurement points E1_1＝{ P 11_i1,2,3, … … F1}, wherein P is11_iRepresents H1And S1Corresponding to any one of the preset measuring points, F1 represents H1And S1The number of corresponding preset measuring points; for preset floating touch height H1And a target size parameter S2Determining the predetermined set of measurement points E1_2＝{ P 12_i1,2,3, … … F2}, wherein P is12_iRepresents H1And S2Corresponding to any one of the preset measuring points, F2 represents H1And S2The number of corresponding preset measuring points; for preset floating touch height H2And a target size parameter S2Determining the predetermined set of measurement points E2_2＝{ P 22_i1,2,3, … … F3}, wherein P is22_iRepresents H2And S2Corresponding to any one of the preset measuring points, F3 represents H2And S2Corresponding preset measuring pointThe number of (2); by analogy, a corresponding preset measurement point group can be determined for each target size parameter at each preset floating touch height.
The preset measurement point may be randomly selected, or the User may be guided to set the measurement point through a corresponding User Interface (UI). The distances between the preset measurement points are known and are not completely the same, that is, some distances may only set one pair of preset measurement points, and some distances may set multiple pairs of preset measurement points, for example, the determined distances include d1, d2, d3, d4, d5, d6, d7, d8, d9, and d10, where d1-d10 may have an increasing or decreasing trend, and then each distance may correspond to only one pair of preset measurement points, or may correspond to multiple preset measurement points, for example, the distance d1, the distance between only one pair of preset measurement points may be d1, and the distances between multiple pairs of preset measurement points may be d 1. For "pitch" that falls around a common position resolution, several pairs of preset measurement points may be set more to avoid measurement errors.
In this embodiment, for different target size parameters and preset floating touch heights, the corresponding preset measurement point groups may be identical or different.
Step 1702, acquiring a self-inductance capacitance value set of the touch panel when the touch object touches at each preset measuring point respectively for each size parameter under each preset floating touch height; the self-inductance capacitance value group comprises self-inductance capacitance values of all target induction units in the touch panel;
for example, for a preset hover touch height H1And a target size parameter S1Respectively acquiring the touch object at a preset measuring point group E1_1At each predetermined measuring point P11_iSelf-inductance capacitance value group C of touch panel during touch control11_i＝{ C f11_j1,2,3, … … X1}, wherein C isf11_jIndicating that the touch object is at the preset measurement point P11_iThe self-inductance capacitance of any one of the sensing units during touch down, X1 represents the target dimension parameter S1The number of sensing units in the lower touch panel. For preset floating touch height H2And a target size parameter S2Respectively obtain touchControlling object at preset measuring point group E2_2At each predetermined measuring point P22_iSelf-inductance capacitance value group C of touch panel during touch control22_i＝{ C f22_j1,2,3, … … X2}, wherein C isf22_jIndicating that the touch object is at each preset measuring point P22_iThe self-inductance capacitance of any one of the sensing units during touch down, X2 represents the target dimension parameter S2The number of sensing units in the lower touch panel; by analogy, the self-inductance capacitance value group corresponding to each preset measuring point in the preset measuring point group of each target size parameter at each preset floating touch height can be obtained.
Step S1703, determining a position resolution of the corresponding touch panel under each preset floating touch height and size parameter according to a capacitance variation between the self-inductance capacitance value sets corresponding to each preset measurement point and a distance between each preset measurement point.
For example, for a preset hover touch height H1And a target size parameter S1Presetting a measuring point P11_1Corresponding self-inductance capacitance value set C11_1＝{ C f1_j1,2,3, … … N1}, and a preset measurement point P11_2Corresponding self-inductance capacitance value set C11_2＝{ C f2_j1,2,3, … … N2}, if C is equal to11_1Relative to C11_2If there is a change, i.e. there is a capacitance change, it indicates that the touch panel can detect that the touch object is changed from P11_1Move to P11_2Temporal touch position change, assume P11_1And P11_2The distance between the touch panels is d1, which means that the touch panel can detect at least the touch operation with the displacement d1, and the minimum displacement that can be detected is the position resolution of the touch panel.
Wherein, the step S1703 may specifically include: and acquiring the distance value between two preset measuring points with the capacitance variation larger than a preset threshold value, and further determining the position resolution of the touch panel according to the minimum distance value in all the distance values. The preset threshold may be zero, or may be another preset threshold. Since the position resolution of the touch panel is the minimum displacement that can be detected by the touch panel, the position resolution of the touch panel can be determined according to the minimum distance value between two preset touch points, where all capacitance variation amounts are greater than a preset threshold value.
For an application scenario in which the preset floating touch height and the target size parameter have multiple applications at the same time, in this embodiment, a preset measurement point group may be determined for each target size parameter at each preset floating touch height, the preset measurement point group includes multiple touchable points, i.e., preset measurement points, whose distances in the sensing area of the touch panel are not exactly the same at the corresponding preset floating touch height and the target size parameter, and then the third position resolution of the touch panel corresponding to each preset floating touch height and the target size parameter is measured according to the preset measurement point group. Therefore, the subsequent touch operation is conveniently carried out according to the preset floating touch height, the target size parameter and the position resolution of the touch panel corresponding to the target size parameter.
As shown in fig. 18, optionally, after step S503 (i.e., after the sensing unit of the touch panel is adjusted in size according to the target floating touch height), the method further includes steps S1801-S1802:
step 1801, when a touch operation is sensed, obtaining a self-inductance capacitance value of each target sensing unit in the single-layer electrode layer;
step S1802, determine a touch position of the touch operation according to the self-inductance capacitance value of each target sensing unit.
In this embodiment, when the touch operation is sensed, the self-inductance capacitance value of each target sensing unit in the single-layer electrode layer is obtained, and then the touch position of the touch operation is determined by comparing the self-inductance capacitance values of the target sensing units.
A second aspect of the present invention provides a capacitive touch device, which is applied to a capacitive touch panel, wherein the capacitive touch panel includes a single electrode layer; the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form;
the device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a target floating touch height;
determining a target size parameter of the sensing unit matched with the target floating touch height;
and carrying out short circuit control on each electrode plate according to the target dimension parameters so as to divide the single-layer electrode layer into a plurality of target induction units meeting the target dimension parameters.
Wherein the processor is further configured to implement the capacitive touch method of any of the above embodiments by executing executable instructions in the memory.
A third aspect of the present invention provides a computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, implement the above capacitive touch method.
The above embodiments can be freely combined according to actual needs.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A capacitive touch method is applied to a capacitive touch panel, wherein the capacitive touch panel comprises a single-layer electrode layer; the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form;
the method comprises the following steps:
acquiring a target floating touch height;
determining a target size parameter of the sensing unit matched with the target floating touch height;
carrying out short circuit control on each electrode plate according to target size parameters so as to divide the single-layer electrode layer into a plurality of target induction units meeting the target size parameters;
the determining the target size parameter of the sensing unit matched with the target floating touch height comprises:
acquiring a first corresponding relation between a preset floating touch height and a size parameter of an induction unit, wherein the preset floating touch height is positively correlated with the size parameter; determining a target size parameter of the sensing unit matched with the target floating touch height according to the first corresponding relation; or
Acquiring a second corresponding relation among a preset suspension touch height, a size parameter and a position resolution of the induction unit; and determining a target size parameter of the sensing unit which is matched with the target floating touch height and has the highest position resolution according to the second corresponding relation.
2. The method of claim 1, wherein the obtaining a first corresponding relationship between a preset hover touch height and a dimensional parameter of a sensing unit comprises:
receiving a parameter setting command;
and setting a first corresponding relation between the preset floating touch height and the size parameter of the induction unit according to the parameter setting command.
3. The method of claim 1, wherein the obtaining a second corresponding relationship between the preset hovering touch height, the size parameter of the sensing unit, and the position resolution comprises:
acquiring a plurality of preset floating touch heights and size parameters of a plurality of induction units;
and respectively measuring the position resolution of the touch panel corresponding to each size parameter under each preset floating touch height to obtain the second corresponding relation.
4. The method of claim 3, wherein separately measuring the position resolution of the touch panel corresponding to each dimension parameter at each predetermined hover touch height comprises:
respectively determining a preset measurement point group aiming at each size parameter under each preset suspension touch height; the preset measurement point group comprises a plurality of touch-controllable points with incompletely same intervals in the induction area of the touch panel under corresponding preset floating touch height and size parameters;
respectively aiming at each size parameter under each preset floating touch height, acquiring a self-inductance capacitance value set of the touch panel when a touch object touches each preset measuring point; the self-inductance capacitance value group comprises self-inductance capacitance values of all target sensing units in the touch panel;
and determining the position resolution of the touch panel corresponding to each preset floating touch height and size parameter according to the capacitance variation between the self-inductance capacitance value groups corresponding to each preset measuring point and the distance between each preset measuring point.
5. The method of claim 1, wherein the target size parameter comprises at least one of:
the target sensing unit comprises a target number of electrode plates, a target area, a target length-width ratio and a target shape.
6. The method of claim 1, wherein the obtaining the target hover touch height comprises:
receiving a target floating touch height input by a user; or
Acquiring self-inductance capacitance values of all sensing units when a user executes suspension touch under the current target size parameter;
and determining the target floating touch control height according to the relation between the preset floating touch control height and the self-inductance capacitance value.
7. The method of claim 1, further comprising:
when touch operation is induced, acquiring a self-inductance capacitance value of each target induction unit in the single-layer electrode layer;
and determining the touch position of the touch operation according to the self-inductance capacitance value of each target sensing unit.
8. A capacitive touch device is applied to a capacitive touch panel, wherein the capacitive touch panel comprises a single-layer electrode layer; the single-layer electrode layer comprises a plurality of electrode plates arranged in a matrix form;
the device comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a target floating touch height;
determining a target size parameter of the sensing unit matched with the target floating touch height;
carrying out short circuit control on each electrode plate according to target size parameters so as to divide the single-layer electrode layer into a plurality of target induction units meeting the target size parameters;
the determining the target size parameter of the sensing unit matched with the target floating touch height comprises:
acquiring a first corresponding relation between a preset floating touch height and a size parameter of an induction unit, wherein the preset floating touch height is positively correlated with the size parameter; determining a target size parameter of the sensing unit matched with the target floating touch height according to the first corresponding relation; or
Acquiring a second corresponding relation among a preset suspension touch height, a size parameter and a position resolution of the induction unit; and determining a target size parameter of the sensing unit which is matched with the target floating touch height and has the highest position resolution according to the second corresponding relation.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01150191A (en) * | 1987-12-08 | 1989-06-13 | Seiko Epson Corp | Input apparatus |
| CN103699326A (en) * | 2013-12-27 | 2014-04-02 | 深圳天珑无线科技有限公司 | Touch processing method and terminal device |
| CN105022521A (en) * | 2014-04-30 | 2015-11-04 | 乐金显示有限公司 | Display panel for display device |
| CN105677126A (en) * | 2016-02-04 | 2016-06-15 | 上海天马微电子有限公司 | Display panel and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI372267B (en) * | 2008-04-28 | 2012-09-11 | Au Optronics Corp | Touch panel, color filter substrate and fabricating method thereof |
-
2018
- 2018-05-30 CN CN201810541384.6A patent/CN108762565B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01150191A (en) * | 1987-12-08 | 1989-06-13 | Seiko Epson Corp | Input apparatus |
| CN103699326A (en) * | 2013-12-27 | 2014-04-02 | 深圳天珑无线科技有限公司 | Touch processing method and terminal device |
| CN105022521A (en) * | 2014-04-30 | 2015-11-04 | 乐金显示有限公司 | Display panel for display device |
| CN105677126A (en) * | 2016-02-04 | 2016-06-15 | 上海天马微电子有限公司 | Display panel and display device |
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