CN113534971B - Touch keyboard and identification method of touch keys - Google Patents
Touch keyboard and identification method of touch keys Download PDFInfo
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- CN113534971B CN113534971B CN202111071998.0A CN202111071998A CN113534971B CN 113534971 B CN113534971 B CN 113534971B CN 202111071998 A CN202111071998 A CN 202111071998A CN 113534971 B CN113534971 B CN 113534971B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000006698 induction Effects 0.000 claims abstract description 22
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 230000037431 insertion Effects 0.000 claims abstract description 17
- 230000000717 retained effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 15
- 230000012447 hatching Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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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
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
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Abstract
The invention discloses a touch keyboard and a touch key identification method, wherein n first channels arranged in an opposite insertion mode and m second channels arranged in an opposite insertion mode are arranged, the first channels are connected with a first driving IC, the second channels are connected with a second driving IC, the junction of the first channels and the second channels is an adjacent area, each key spanning the adjacent area corresponds to different channel area ratios, and the first driving IC and the second driving IC identify the touched key according to induction data on the first channels and the second channels. Compared with the existing calculation mode of touch key induction data, the method can more accurately and reliably identify the keys in the adjacent area through the different channel area ratios corresponding to the keys, and avoids the situation of false alarm of the touch keys in the adjacent area.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a touch control keyboard and a touch control key identification method.
Background
The existing splicing touch device can adopt an induction channel with simpler patterns in certain application scenes, and the general touch precision of the induction channel is not high. When a plurality of driving ICs are adopted to respectively identify the key touch in different touch areas, part of keys possibly exist in the interface areas of the different touch areas and cross the touch areas controlled by at least two driving ICs, so that false alarm is easy to occur when the keys in the interface areas are touched.
Disclosure of Invention
In view of the above, the object of the present invention is: a touch keyboard and a method for identifying touch keys are provided.
In order to achieve one or a part of or all of the above or other objects, an aspect of the present invention provides a touch keyboard, including n first channels, where every two adjacent first channels are disposed in an opposite manner; the m second channels are arranged on one side of the n first channels, and every two adjacent second channels are arranged in an opposite insertion mode; an adjacent region, which is a junction of the n first channels and the m second channels; the first drive IC is connected to the n first channels, the second drive IC is connected to the m second channels, and the first drive IC and the second drive IC are respectively used for identifying the touched keys according to the induction data on the first channels and the induction data on the second channels; each key positioned in the adjacent region corresponds to different channel area ratios, and the channel area ratio is the area ratio of a first channel which is oppositely arranged in the adjacent region and is touched, or the channel area ratio is the area ratio of a second channel which is oppositely arranged in the adjacent region and is touched.
In another aspect, the present invention provides a method for identifying a touch key, including the following steps: arranging a first drive IC connected with a plurality of first channels and a second drive IC connected with a plurality of second channels, and forming an adjacent area at the junction of the first channels and the second channels;
acquiring induction data of a first channel in an adjacent region through the first drive IC, and acquiring a channel area ratio according to the induction data, wherein the channel area ratio is the area ratio of the first channel in the adjacent region, which is in an opposite insertion arrangement, to be touched; or
Acquiring induction data of a second channel positioned in an adjacent area through the second drive IC, and acquiring a channel area ratio according to the induction data, wherein the channel area ratio is the area ratio of two first channels which are positioned in the adjacent area and are arranged in an opposite insertion mode and touched or the area ratio of the second channel which is touched; determining the touched keys according to the channel area ratios, wherein each key spanning the adjacent areas corresponds to a different channel area ratio; and executing the operation corresponding to the touched key.
The implementation of the invention has the following beneficial effects:
the touch control method comprises the steps that n first channels are arranged in an opposite insertion mode, m second channels are arranged in an opposite insertion mode, the first channels are connected with a first driving IC, the second channels are connected with a second driving IC, the junction of the first channels and the second channels is an adjacent area, each key spanning the adjacent area corresponds to different channel area ratios, and the first driving IC and the second driving IC identify the touched keys according to sensing data on the first channels and the second channels. Compared with the existing identification mode of adding the touch key sensing data, the method and the device can identify the keys in the adjacent area more accurately and reliably through the different channel area ratios corresponding to the keys, and avoid the situation of misinformation of the touch keys in the adjacent area.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a touch keyboard in the prior art, in which a false alarm region is likely to occur;
FIG. 2 is a diagram of a lower touch keyboard according to one embodiment;
FIG. 3 is a schematic diagram of a touch location in a first touch area with a maximum ratio of channel areas for one embodiment;
FIG. 4 is a schematic diagram of a touch location in a first touch area with a minimum ratio of channel areas for one embodiment;
FIG. 5 is a schematic diagram illustrating a principle of calculating an x coordinate of a touch position on a touch keyboard according to sensing data according to an embodiment;
FIG. 6 is a schematic diagram illustrating a principle of calculating an x coordinate of another touch position on the touch keyboard according to the sensing data according to an embodiment;
FIG. 7 is a diagram illustrating a maximum ratio of channel areas at touch positions on a lower touch keyboard according to an embodiment;
FIG. 8 is a diagram illustrating a minimum ratio of channel areas at touch locations on a lower touch keyboard in accordance with one embodiment;
FIG. 9 is a diagram illustrating a touch keypad with a portion of the channel removed at the border region according to one embodiment;
FIG. 10 is a schematic view of a lower touch keyboard according to another embodiment;
FIG. 11 is a schematic diagram showing the range of channel area ratios corresponding to different keys in adjacent regions of a touch keyboard not adopting the present solution;
FIG. 12 is a diagram illustrating a second channel with a touch cut-out portion in a touch keyboard according to an embodiment;
FIG. 13 is an enlarged view taken at A in FIG. 12;
FIG. 14 is a schematic diagram illustrating the range of channel area ratios corresponding to different keys in an adjacent region of a touch keyboard according to the present invention;
FIG. 15 is a schematic diagram illustrating the boundary distribution of the touch areas of the keys U, H, N on the touch keyboard according to yet another embodiment;
FIG. 16 is a flowchart illustrating a method for identifying a touch key according to the present invention.
In the figure: 10-a first channel; 11-a first touch area; 12-a second touch area; 13-touch area; 20-a second channel; 30-channel cut-out.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as according to the upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship, movement, etc. of the components in a specific posture (according to the figure), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 and 2, the touch keyboard according to the embodiment of the invention can be divided into a first driver IC touch area, a second driver IC touch area, and an adjacent area located at the interface of the first driver IC touch area and the second driver IC touch area. The touch keyboard comprises n first channels 10, and every two adjacent first channels 10 are arranged in an opposite insertion mode; the m second channels 20 are arranged in an opposite insertion mode, and every two adjacent second channels 20 are arranged in an opposite insertion mode; the juncture of the n first channels 10 and the m second channels 20 is an adjacent area, the first drive IC is connected to the n first channels 10, the second drive IC is connected to the m second channels, and the first drive IC and the second drive IC are respectively used for identifying the touched key according to the induction data on the first channels 10 and the second channels 20; each key crossing the adjacent region corresponds to a different channel area ratio, and the channel area ratio is the touched area ratio of the first channel 10 or the touched area ratio of the second channel 20 which are positioned in the adjacent region and are arranged in an inserting mode.
Specifically, the first driver IC or the second driver IC is configured to determine a channel area ratio in the adjacent region, and directly correspond to the key according to the channel area ratio; or the first drive IC or the second drive IC determines the area ratio of the channel in the adjacent region, corresponds to the touched coordinate according to the area ratio of the channel, corresponds to the key through the touched coordinate, and executes the operation corresponding to the key. According to the invention, the area ratio of the first channel 10 to the second channel 20 which are touched is adopted for key identification, so that the false alarm caused by coincidence of the channel area ratios corresponding to different keys in an adjacent area due to touch can be eliminated.
Referring to fig. 3 and 4, taking n first channels 10 controlled by the first driving IC as an example for explanation, each two adjacent first channels 10 include a first a channel and a first B channel, and the first a channel and the first B channel are arranged in an opposite insertion manner, in some embodiments, each two adjacent first channels 10 arranged in an opposite insertion manner form a sensing unit, that is, one first a channel and one first B channel form a sensing unit, and the sensing unit is used for recognizing a touch. On the first channelThe shadow area forms a first touch area 11 and a second touch area 12 which are arranged at intervals, when the first touch area 11 is touched, the coordinates of the touch corresponding to the first touch area are identified through the first drive IC, and then the corresponding key is confirmed to execute corresponding operation through the touched coordinates; when the touch is performed in the second touch area 12, the touch coordinates corresponding to the touch are identified by the second driving IC, and then the corresponding operation is performed by the key corresponding to the touch coordinates. The dark circles in fig. 4 indicate the areas covered by the touch, i.e. the touch zones or touch areas 13. When the touch area is located in the first touch area 11 or the second touch area 12,
is the covered touch area of the first a-channel,
is the covered touch area of the first B channel,
represents the ratio of the covered touch area of the first A channel to the covered touch area of the first B channel, i.e. the ratio of the touch channel area, and simultaneously
The size of the first channel 10 determines the x-coordinate position of the touch area, and in order to prevent false alarm due to coincidence of corresponding channel area ratios between different touch areas, the area ratio of the channel corresponding to each key is not coincident by adjusting the area of the first channel 10. Specifically, taking the touch coordinates of the first touch area 11 and the second touch area 12 as the corresponding key a and key B, respectively, as an example, the channel area ratio
The larger the corresponding x coordinate, i.e. key A corresponds to a larger channel area ratio
Button B corresponds to a smaller channel area ratio
Or key A corresponds to a larger channel area ratio
Interval, button B corresponds to a smaller channel area ratio
An interval. In order to prevent false touch, it is necessary to increase the difference between the channel area ratio corresponding to the key a and the channel area ratio corresponding to the key B, or increase the difference between the minimum value of the channel area ratio range section corresponding to the key a and the maximum value of the channel area ratio range section corresponding to the key B. In one embodiment, the average width dimension of the first a channel within key a is a, the average width dimension of the first B channel within key a is B,
represents the maximum value of the channel area proportional interval corresponding to the key,
indicating the minimum value of the channel area proportional interval corresponding to the key, for example, of key A, see FIGS. 3 and 4
And
comprises the following steps:
by adjusting the range interval of the channel area proportion corresponding to the key A, the mutual false alarm between the key A and the key B is avoided. In one embodiment, the key A can be enlarged simultaneously
And
to be implemented. In other embodiments, it is also possible to increase the key A only
Or reducing the number of keys B at the same time
And
or by reducing the key B only
The above object is achieved.
As shown in fig. 5 to 6, when the driving IC B is used to identify the x coordinate corresponding to the touch, the x coordinate corresponding to the touch position is generally determined by calculating the ratio of the touch areas touched by the two adjacent sensing channels connected by the driving IC B. The touched area in fig. 5 and 6 is a shaded area, the x coordinate of the touch position in fig. 5 is calculated according to (S1 + S3)/S2, and the x coordinate of the touch position in fig. 6 is calculated according to (S1 + S3)/(S2 + S4), it can be seen that the difference of the calculated x coordinate is large because the touch position of the finger is slightly changed in the y coordinate direction, and the driving IC B is easily recognized as a key corresponding to another touch position, so that a false alarm occurs.
To solve the above problem, as shown in fig. 7 to 9, in one embodiment, the first channel 10 or the second channel 20 in the adjacent region includes a channel cut-out 30, and the channel cut-out 30 is used to adjust the channel area ratio of the key in the adjacent region. Note that the hatching filled with the left lower diagonal lines in fig. 7 to 9 is the channel cut-out 30, and the hatching filled with the dot hatching in fig. 11 to 12 is the channel cut-out 30.
Optionally, each first channel or second channel comprises a plurality of branches, adjacentThe branches of the first channel 10 or the second channel 20 are arranged in an opposite manner. Preferably, the plurality of branches are triangular, trapezoidal, etc. in cross section, and the channel cut-out is formed by removing at least one branch within the key or reducing the area of the branch within the key. The first channel 10 comprises a channel cut-out 30, of key A
And
comprises the following steps:
compared with the previous embodiment, the key A
Is measured by
Become into
So that the minimum value of the x coordinate of the key A is increased
Is measured by
Become into
Therefore, the channel area ratio interval corresponding to the key A is adjusted, the interval between the channel area ratio intervals of the key A and the key B is further increased, and the probability of misinformation in the touch recognition process of the key A and the key B is reduced.
In an embodiment, referring to fig. 8, fig. 8 shows two adjacent first channels in the first driver IC touch area, and the right side of the content shown in fig. 8 is the second driver IC touch area (not shown), the first driver IC touch area includes a first a channel and a first B channel, the first a channel includes 4 branches, the first B channel includes 4 branches, and the first a channel and the first B channel are disposed in an interleaving manner. For example, one or more of the 4 branches of the first B channel are partially cut away, or are completely cut away; and at least 1 branch on the first B channel is a complete branch, the complete branch is used for distinguishing the position of the touch area, so that the situation that the coordinate/coordinate interval corresponding to the touch area (key) in the touch area of the second drive IC cannot be distinguished when the coordinate/coordinate interval is overlapped is avoided, and particularly, the area size of the complete branch touching the reserved channel is used as a distinguishing standard. Preferably, the complete branch on the first B channel is a branch closest to the touch area of the second driver IC among the original branches on the first B channel. It can be understood that, if the branch of the first a channel is closer to the touch area of the second driver IC than the branch of the first B channel, the branch of the first a channel closest to the touch area of the second driver IC may be regarded as a complete branch.
Further, referring to fig. 10-11, fig. 10 is an exemplary diagram of the touch keypad when the touch cut-out portion 30 is not disposed in the second channel 20. The touch coordinates of the keys U on the touch keyboard are kept unchanged in the corresponding touch areas on the second channel 20, the second channel 20 includes a second channel a and a second channel B,
the touch area of the touch coordinate of the key U on the second channel a,
the touch area of the key U on the second channel B is defined as follows:
，
。
the touch area of the touch coordinate of the key H on the second channel a,
the touch area of the touch coordinate of the key H on the second channel B is defined as follows:
，
. The touch coordinates of the key N are obtained by removing a part of the channels from the touch area corresponding to the second channel 20,
the touch area of the touch coordinate of the key N on the second channel A is determined,
the touch area of the touch coordinate of the key N on the second channel B corresponds to, and the proportion range of the channel area when the finger touches the touch area is as follows:
，
. Table 1 shows the range of channel area ratios for the keys U, H, N.
TABLE 1 Range of touch channel area ratios for button U, H, N
As can be seen from table 1 and fig. 11, the channel area ratio range of the key U is 0.95 to 1.9, the channel area ratio range of the key H is 1.6 to 3.2, and the channel area ratio range of the key N is 2.54 to 5.09, and it can be seen that there is an intersection between the ranges of the channel area ratios of the keys U, H, N, that is, the key ratio ranges of the keys U, H, N have overlapping spaces, which may cause mutual false alarm.
Further, referring to fig. 12 to 13, fig. 12 to 13 are exemplary diagrams illustrating the touch cut-out portion 30 is disposed in the second channel 20 of the touch keyboard. The touch coordinates of the keys U on the touch keyboard are kept unchanged in the corresponding touch areas on the second channel 20, the second channel 20 includes a second channel a and a second channel B,
the touch area of the touch coordinate of the key U on the second channel a,
the touch area of the key U on the second channel B is defined as follows:
，
the touch coordinates of the key H are removed from the touch area corresponding to the second channel 20,
the touch area of the touch coordinate of the key H on the second channel a,
the touch area of the touch coordinate of the key H on the second channel B is defined as follows:
，
. The touch coordinates of the key N are obtained by removing a part of the channels from the touch area corresponding to the second channel 20,
the touch area of the touch coordinate of the key N on the second channel A is determined,
the touch area of the touch coordinate of the key N on the second channel B corresponds to, and the proportion range of the channel area when the finger touches the touch area is as follows:
，
. Table 2 shows the range of channel area ratios for the keys U, H, N.
TABLE 2 Range of touch channel area ratios for button U, H, N
It can be seen from table 2 and fig. 14 that the channel area ratio range of the key U is 0.95-1.9, the channel area ratio range of the key H is 3.23-4.85, and the channel area ratio range of the key N is 10.17- ∞, and it can be seen that the intersection of the ranges of the channel area ratios of the keys U, H, N is an empty set, that is, each key ratio range of the key U, H, N has no overlapping space, and the channel area ratios between the key U and the key H, and between the key H and the key N have large differences, and there is no mutual false alarm.
Optionally, the channel cut-out is formed by removing a branch in the nth first channel 10 or the mth second channel 20 in the key, and at least one branch is reserved in the nth first channel 10 or the mth second channel 20 after the branch is removed.
Optionally, the keys spanning the adjacent area are arranged along the extending direction of the first channel 10 or the second channel 20, and the keys spanning the adjacent area are overlapped with at most two first channels 10 or second channels 20, so as to ensure the reliability of touch key identification.
In an embodiment, referring to fig. 15, the coordinates of the keys U, H, N correspond to three fixed touch channel area ratios respectively, the crossed touch channels are arranged in a toothed opposite insertion manner, the channel area ratio corresponding to the key U is 1:1, the channel area ratio corresponding to the key H is 1:2, the channel area ratio corresponding to the key N is 1:3, and due to the fixed ratio distribution, the change of the finger in the horizontal direction during touch does not cause the overlapping of the channel area ratios, and meanwhile, the channel of the right side 1/4 still retains the original channel structure. And the rightmost channel is connected with the first drive IC or the second drive IC and used for defining the boundary of the touch area corresponding to the key coordinate.
The invention also provides a method for identifying a touch key, and referring to fig. 16, the method for identifying a touch key comprises the following steps: s10, arranging a first drive IC connected with a plurality of first channels and a second drive IC connected with a plurality of second channels, and forming an adjacent area at the boundary of the first channels and the second channels; s20, acquiring induction data of a first channel in an adjacent area through a first drive IC, or acquiring induction data of a first channel and a second channel in the adjacent area through the first drive IC, and acquiring a channel area ratio according to the induction data, wherein the channel area ratio is the area ratio of two first channels which are oppositely arranged in the adjacent area and are touched; or acquiring induction data of a second channel positioned in the adjacent region through the second drive IC, and acquiring a channel area ratio according to the induction data, wherein the channel area ratio is the area ratio of two second channels which are oppositely arranged in the adjacent region and are touched; s30, determining the touched key according to the channel area ratio, wherein each key spanning the adjacent area corresponds to different channel area ratio; s40 executes the operation corresponding to the touched key.
Optionally, step S10 further includes that each key crossing the adjacent region corresponds to a channel area ratio interval, and an intersection between the channel area ratio intervals corresponding to different keys is an empty set, that is, there is no overlapping area between the channel area ratio intervals corresponding to the touch keys, so that the touch keys have high identification accuracy and there is no mutual false alarm.
Optionally, step S10 further includes arranging the keys spanning the adjacent area along the extending direction of the first channel or the second channel, so that the keys spanning the adjacent area overlap with at most two first channels or second channels.
Optionally, step S30 further includes determining a touched coordinate point or coordinate set according to the channel area ratio; and determining the touched key according to the touched coordinate point or the touched coordinate set.
Optionally, step S30 further includes identifying the y coordinate of the key through the N-th first channel or the M-th second channel being touched, and identifying the x coordinate of the key through the channel area ratio to determine the touched key.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A touch keyboard, comprising:
n first channels, wherein every two adjacent first channels are arranged in an opposite insertion manner;
the m second channels are arranged on one side of the n first channels, and every two adjacent second channels are arranged in an opposite insertion mode;
an adjacent region, which is a junction of the n first channels and the m second channels;
the first drive IC is connected to the n first channels, the second drive IC is connected to the m second channels, and the first drive IC and the second drive IC are respectively used for identifying the touched keys according to the induction data on the first channels and the induction data on the second channels;
each key spanning the adjacent area corresponds to different channel area ratios, wherein the channel area ratio is the area ratio of a first channel positioned in the adjacent area and touched in an interpolation mode, or the channel area ratio is the area ratio of a second channel positioned in the adjacent area and touched in an interpolation mode.
2. A touch keyboard according to claim 1, wherein the first channel or the second channel in the adjacent region comprises a channel cut-out for adjusting the channel area ratio of keys across the adjacent region.
3. A touch keyboard according to claim 2, wherein each of the first or second channels comprises a plurality of branches, the branches of adjacent first or second channels being arranged in an interdigitating arrangement.
4. A touch keyboard according to claim 3, wherein the channel cut-outs are formed by removing at least one branch within the keys or reducing the area of a branch within the keys.
5. The touch keyboard according to claim 4, wherein the channel cut-out is formed by removing a branch in an Nth first channel in the key, and at least one branch of the Nth first channel after the branch is removed is reserved and connected to the first driver IC by a wire; or
The channel cutting part is formed by removing branches in an Mth second channel in the key, at least one branch is reserved in the Mth second channel after the branches are removed, and the reserved at least one branch is connected to the second drive IC through a wiring.
6. A touch keyboard according to claim 5, wherein the at least one branch retained is the branch closest to the m second channels among the original branches in the Nth first channel; or
The reserved at least one branch is a branch closest to the n first channels in the original branches in the Mth second channel.
7. A touch keyboard according to claim 1, wherein the keys spanning the adjacent regions are aligned along the direction of extent of the first or second channels, the keys spanning the adjacent regions overlapping a maximum of two of the first or second channels.
8. The identification method of the touch key is characterized by comprising the following steps:
arranging a first drive IC connected with a plurality of first channels and a second drive IC connected with a plurality of second channels, and forming an adjacent area at the junction of the first channels and the second channels;
acquiring induction data of a first channel in an adjacent region through the first drive IC, and acquiring a channel area ratio according to the induction data, wherein the channel area ratio is the area ratio of the first channel in the adjacent region, which is in an opposite insertion arrangement, to be touched; or
Acquiring induction data of a second channel in an adjacent region through the second drive IC, and acquiring a channel area ratio according to the induction data, wherein the channel area ratio is the area ratio of the second channel in the adjacent region, which is in an opposite insertion arrangement, to be touched;
determining the touched keys according to the channel area ratios, wherein each key positioned in the adjacent region corresponds to a different channel area ratio;
and executing the operation corresponding to the touched key.
9. The method according to claim 8, wherein each key crossing said adjacent region corresponds to a zone of channel area ratio, and the intersection between the zones corresponding to different keys is an empty set.
10. The method according to claim 8, wherein the determining the touched key according to the channel area ratio comprises:
determining a touched coordinate point or a coordinate set according to the channel area ratio;
and determining the touched key according to the touched coordinate point or the touched coordinate set.
11. The method for identifying touch keys of claim 10, wherein the keys spanning the adjacent area are arranged along the extending direction of the first channel or the second channel, such that the keys spanning the adjacent area are overlapped with at most two first channels or second channels.
12. The method for identifying a touch key according to any one of claims 8 to 11, wherein the determining the touched key according to the channel area ratio further comprises:
and identifying the y coordinate of the key through the touched Nth first channel or the Mth second channel, and identifying the x coordinate of the key through the channel area ratio to determine the touched key.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101925872A (en) * | 2008-01-29 | 2010-12-22 | 美法思株式会社 | Touch sensor panel having split-electrode structure and touch sensor device provided with the same |
| TW201324261A (en) * | 2011-12-01 | 2013-06-16 | Novatek Microelectronics Corp | Multi-touch positioning method |
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| JP2010244088A (en) * | 2007-07-02 | 2010-10-28 | Nec Corp | Input device |
| US20110267278A1 (en) * | 2010-04-29 | 2011-11-03 | Sony Ericsson Mobile Communications Ab | Adaptive soft keyboard |
| CN104615294A (en) * | 2013-11-04 | 2015-05-13 | 胜华科技股份有限公司 | Touch panel |
| CN104218935B (en) * | 2014-08-15 | 2018-07-27 | 上海新时达电气股份有限公司 | Integral type capacitor induction type key panel and its recognition by pressing keys method |
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| CN101925872A (en) * | 2008-01-29 | 2010-12-22 | 美法思株式会社 | Touch sensor panel having split-electrode structure and touch sensor device provided with the same |
| TW201324261A (en) * | 2011-12-01 | 2013-06-16 | Novatek Microelectronics Corp | Multi-touch positioning method |
| CN104331196A (en) * | 2013-07-22 | 2015-02-04 | 株式会社日本显示器 | Touch detecting device, display device with touch detecting function, and electronic apparatus |
| CN104360774A (en) * | 2014-11-25 | 2015-02-18 | 上海天马微电子有限公司 | Touch panel and method for performing touch detection |
| CN107003764A (en) * | 2014-11-26 | 2017-08-01 | 东友精细化工有限公司 | Touch sensing |
| CN105183213A (en) * | 2015-08-04 | 2015-12-23 | 南昌欧菲光科技有限公司 | Touch screen, and anti-misoperation method therefor |
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