CN103576945B - Contactor control device and its touch control detecting method - Google Patents
Contactor control device and its touch control detecting method Download PDFInfo
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- CN103576945B CN103576945B CN201210248694.1A CN201210248694A CN103576945B CN 103576945 B CN103576945 B CN 103576945B CN 201210248694 A CN201210248694 A CN 201210248694A CN 103576945 B CN103576945 B CN 103576945B
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Abstract
A kind of contactor control device and its touch control detecting method, the method comprises the following steps.Obtain the multiple touch-control values corresponding to multiple touch areas of contact panel.Determine touch-control block according to these touch-control values and touch-control marginal value, these touch areas being wherein located at touch-control block are adjacent one another are.These touch-control values being sequentially compared to each other adjacent touch region in corresponding touch-control block are to judge whether touch-control block has touch-control value valley point.Touch-control value valley point whether is had to judge touch-control block for corresponding single-point touch or multi-point touch according to touch-control block.
Description
Technical field
The present invention relates to a kind of contactor control device and its touch control detecting method, and can determine whether that touch-control block is particularly to one kind
The no contactor control device for corresponding single-point touch or multi-point touch and the touch control detecting method being applied to this contactor control device.
Background technology
With information technology, wireless mobile communication and the fast development of information household appliances and application, in order to reach carrying convenience,
Volume light and handyization and purpose user-friendly for operation, many information products, by input equipment such as traditional keyboard or slide-mouse, turn
It is changed into contact panel (Touch Panel) being used as input equipment.Current contact panel is broadly divided into capacitance touching control
Panel and electric resistance touch-control panel.And, the increase in demand with multi-point touch (multi-touch) technology, projected capacitive
Formula touch technology has become one of main flow of contact panel technology.
Because human body can be considered good conductor, therefore transparency electrode (ITO) meeting of projected capacitive touch panel and human body
Form electric capacity.When human body (as finger) is near projected capacitive touch panel, each sensing area of projected capacitive touch panel
The capacitance in domain can change, thus the touch point of human body can be detected.However, when two touch points too near when, capacitance become
The touch area changed can be adjacent, so that the touch area of these capacitance variation is considered corresponding same touch point, causes to touch
Control device cannot correct response user touch point.
Content of the invention
The present invention provides a kind of contactor control device and the touch control detecting method being applied to this contactor control device, and it can detect Touch Zone
Whether block is corresponding single-point contact or multi-point touch.
The present invention proposes a kind of contactor control device, including contact panel and touch control detection unit.Contact panel has multiple touching
Control region.Touch control detection unit couples contact panel, in order to detect the corresponding multiple touch-control values in these touch areas, and foundation
These touch-control values and touch-control marginal value determine touch-control block.Touch control detection unit is sequentially compared to each other adjacent in corresponding touch-control block
The touch-control value of touch area is to judge whether touch-control block has touch-control value valley point, and whether foundation has touch-control value valley point to judge touch-control
Block is single-point touch or multi-point touch.It is adjacent one another are positioned at these touch areas of touch-control block, wherein said touch-control inspection
Survey unit and will correspond to the first highest touch-control value as the first touch point, and touch control detection unit is with the first touch point for having compared
Initial point is to be sequentially compared to each other the touch-control value in corresponding adjacent touch region.When in described adjacent touch region from the first touch point relatively
The corresponding first touch-control value in remote touch area is more than another touch-control in described adjacent touch region close to the first touch point
During the corresponding second touch-control value in region, touch control detection unit judges the second touch-control value is touch-control value valley point, and according to touch-control value
Valley point judges these touch-control values of corresponding first touch point.And, touch control detection unit by non-corresponding first touch point this
The corresponding touch area of the second highest touch-control value in a little touch-control values is as the second touch point.
In one embodiment of this invention, when these touch-control values of corresponding touch-control block are all compared to each other out-of-date, touch-control inspection
Survey unit to stop judging the touch-control value valley point of touch-control block.
In one embodiment of this invention, when not having touch-control value valley point, touch control detection unit judges touch-control block is single
Point touch-control.When there being touch-control value valley point, touch control detection unit judges touch-control block is multi-point touch.
In one embodiment of this invention, contact panel is projected capacitive touch panel or digital resistance touch surface
Plate.
The present invention also proposes a kind of touch control detecting method according to above-mentioned contactor control device, and it comprises the following steps.Obtain institute
Multiple touch-control values corresponding to multiple touch areas of the contact panel stating contactor control device.Critical according to these touch-control values and touch-control
Value determines touch-control block, and these touch areas being wherein located at touch-control block are adjacent one another are.Sequentially it is compared to each other corresponding touch-control
In block, the touch-control value in adjacent touch region is to judge whether touch-control block has touch-control value valley point.Whether foundation has touch-control value valley point
Judge that touch-control block, for corresponding single-point touch or multi-point touch, is wherein sequentially compared to each other adjacent touch area in corresponding touch-control block
The touch-control value in domain is to judge whether touch-control block has the step of touch-control value valley point to include：To have corresponding these of touch-control block to touch
The touch area of the first highest touch-control value in control value is as the first touch point；With the first touch point for comparing starting point sequentially phase
Mutually compare the touch-control value in adjacent touch region；When in described adjacent touch region, from the first touch point, touch area farther out corresponds to
The first touch-control value be more than another touch area close to the first touch point corresponding second in described adjacent touch region and touch
During control value, judge the second touch-control value for touch-control value valley point；Judge these touch-controls of corresponding first touch point according to touch-control value valley point
Value, and the corresponding touch area of the second highest touch-control value in these touch-control values of non-corresponding first touch point is as second
Touch point.
In one embodiment of this invention, the touch control detecting method of contact panel also includes：When corresponding touch-control block this
It is out-of-date that a little touch-control values are all compared to each other, and stops judging the touch-control value valley point of touch-control block.
In one embodiment of this invention, each touch-control value of corresponding touch-control block is all more than or equal to touch-control marginal value.
In one embodiment of this invention, according to whether have touch-control value valley point judge touch-control block for correspondence single-point touch or
The step of multi-point touch includes：When not having touch-control value valley point, touch-control block is judged as corresponding single-point touch；When there being touch-control value paddy
During point, touch-control block is to judge corresponding multi-point touch.
Based on above-mentioned, the contactor control device of the embodiment of the present invention and the touch control detecting method being applied to this contactor control device, its according to
Sequence is compared to each other in touch-control block the touch-control value corresponding to adjacent touch region to determine whether touch-control value valley point, and according to being
No have touch-control value valley point to judge touch-control block for corresponding single-point touch or multi-point touch.And, also according to the touch-control being judged
Value valley point is distinguished all touch areas in touch-control block and is distinguished corresponding touch point.
It is that the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate institute's accompanying drawings
It is described in detail below.
Brief description
Fig. 1 is the system schematic of the contactor control device according to one embodiment of the invention.
Fig. 2 is the touch-control Distribution value schematic diagram of the contact panel of Fig. 1.
Fig. 3 is the flow chart of the touch control detecting method of contactor control device according to one embodiment of the invention.
Specific embodiment
Fig. 1 is the system schematic of the contactor control device according to one embodiment of the invention.Refer to Fig. 1, in the present embodiment,
Contactor control device 100 includes touch control detection unit 110 and contact panel 120.Contact panel 120 has multiple touch areas 121, and
And contact panel 120 can taking projected capacitive touch panel or digital resistance contact panel as a example.Touch control detection unit 110 coupling
Connect contact panel 120, to detect multiple touch-control values VT corresponding to these touch areas 121, and according to detected touch-control
Value VT judges whether contact panel 120 touched and touch point that judge contact panel 120.
Furthermore, it is understood that after obtaining touch-control value VT corresponding to these touch areas 121, touch control detection unit 110 meeting
Touch-control value VT and touch-control marginal value according to these touch areas 121 detect in contact panel 121 whether there is touch-control block.Touch-control
Detector unit 110 can filter the touch area that corresponding touch-control value VT is less than touch-control marginal value.And, when have touch area not by
During filtration, in these touch areas do not filtered, these touch areas adjacent one another are can be considered as same touch-control block.That is,
Touch-control value VT corresponding to touch area in touch-control block can be more than or equal to touching in touch-control marginal value and same touch-control block
Control region can be adjacent one another are.When all touch areas are all filtered, then do not have Touch Zone block.
When touch control detection unit 110 detect there is no touch-control block in contact panel 120 when then it represents that contact panel 120
Not touched.That is, contact panel 120 does not have touch point.Now, touch control detection unit 110 can stop further detecting
Or process.When touch control detection unit 110 detects touch-control block then it represents that contact panel 120 should be in touched state.Also
That is, a contact panel 120 at least touch point.Now, touch control detection unit 120 can be to all corresponding to same touch-control block
Touch-control value VT carries out data processing, to judge whether touch-control block is corresponding single-point touch or multi-point touch and detection Touch Zone
The touch point of block.
During data processing, touch control detection unit 110 can be first by highest touch-control value corresponding in touch-control block (i.e. the
One highest touch-control value) touch area as the first touch point, and sequentially compare using the first touch point as comparing starting point
Corresponding these touch-control values VT to adjacent touch area.When in two adjacent touch values VT from the first touch point Touch Zone farther out
Touch-control value VT (i.e. first touch-control value) in domain is more than touch-control value VT (i.e. second touch-control of the touch area close to the first touch point
Value) when, touch control detection unit 110 judges above-mentioned touch-control value VT close to the first touch point for touch-control value valley point.And, touch-control
Detector unit 110 can judge according to the touch-control value valley point being judged whether touch-control value VT corresponding to touch area corresponds to first and touch
Control point.That is, the touch-control value valley point segmentation touch-control block that foundation is judged, and comprise these touch areas of the first touch point
These touch-control values VT are corresponding first touch point, and do not comprise these touch-control values in these touch areas of the first touch point
VT non-corresponding first touch point.
Additionally, having highest touch-control value (i.e. the second highest touch-control in these touch-control values VT of non-corresponding first touch point
Value) touch area as the second touch point, and again according to aforesaid way detect whether with the presence of other touch-control value valley points with
Determine whether that other touch points exist.When all touch-control values VT of corresponding touch-control block are compared to each other out-of-date, represent Touch Zone
The data processing in domain completes.Therefore, touch control detection unit 110 can stop detecting the touch-control value valley point of touch-control block.Accordingly, touch
Control detector unit 110 may be based on whether to judge have touch-control value valley point to judge that touch-control block is corresponding single-point touch or multiple spot touches
Control, also distinguishes the touch point corresponding to touch area in touch-control block according to the touch-control value valley point being judged.
Fig. 2 is the touch-control Distribution value schematic diagram of the contact panel of Fig. 1.Refer to Fig. 1 and Fig. 2, in this example, it is assumed that
Touch area 121 in contact panel 120 is the matrix arrangement with 6*6, and in the grid of detected touch-control value VT such as Fig. 2
Shown numerical value.It is assumed herein that touch-control marginal value is 20, then touch-control value VT is less than 20 touch area and can be filtered out (that is, touch-control value
The touch area that VT is less than 20 will not be selected), and the touch area due to being selected is adjacent one another are, therefore according to these quilts
The touch area chosen determines touch-control block 210.
Determine touch-control block 210 after, touch control detection unit 110 can by have in touch-control block 210 highest touch-control value (
This be 65) touch area be defined as the first touch point TP1.Then, from the beginning of the first touch point TP1, it is compared to each other Touch Zone
The touch-control value of two adjacent touch areas in block 210, the path wherein compared can refer to shown in arrow.In the present embodiment, touch-control
Detector unit 110 can first compare touch-control value 65 and the touch area adjacent to the first touch point TP1 touch-control value (i.e. 32,35 and
45).Touch because the touch-control value 65 of the first touch point TP1 is corresponding respectively more than the touch area adjacent to the first touch point TP1
Control value 32,35 and 45, therefore touch-control value 65 will not be judged as touch-control value valley point VP.
As shown in Fig. 2 adjacent to the touch area on the right side of the first touch point TP1 touch-control value 32 can with adjacent to this touch-control
The touch-control value 28 of the touch area below the corresponding touch area of value 32 compares.And, above-mentioned touch-control value 28 can with adjacent to this
The touch-control value 55 of the touch area below the corresponding touch area of touch-control value 28 compares.According to comparative result, touch-control value 32 will not
It is judged as touch-control value valley point VP, and touch-control value 28 is judged as touch-control value valley point VP.On the downside of the first touch point TP1
The touch-control value 35 of touch area can be with the touch-control value 36 adjacent to the touch area below this corresponding touch area of touch-control value 35
Relatively, and according to comparative result, touch-control value 35 can be judged as touch-control value valley point VP.Furthermore, adjacent to the first touch point TP1
The touch-control value 35 of the touch area in left side understand with respectively adjacent to below this corresponding touch area of touch-control value 35, left side and top
The touch-control value 20,23 and 33 of touch area compare.And, above-mentioned touch-control value 20 can be touched with adjacent to this touch-control value 20 is corresponding
The touch-control value 18 of touch area below control region compares, above-mentioned touch-control value 18 understand with adjacent to this corresponding touch-control of touch-control value 18
The touch-control value 25 of the touch area below region compares, above-mentioned touch-control value 23 can with adjacent to this corresponding Touch Zone of touch-control value 23
The touch-control value 20 of the touch area above domain compares.Therefore, according to comparative result, touch-control value 35,33,20 and 23 will not be judged
For touch-control value valley point VP, and touch-control value 18 can be judged as touch-control value valley point VP.Adjacent to the touch-control above the first touch point TP1
The touch-control value 45 in region can compare with adjacent to the touch-control value 30 on the right side of this corresponding touch area of touch-control value 45, above-mentioned touch-control value
30 can be compared with the touch-control value 24 adjacent to the touch area on the right side of this corresponding touch area of touch-control value 30.Foundation compares knot
Really, touch-control value 45,30 and 24 will not be judged as touch-control value valley point VP.
According to above-mentioned, when touch-control value (as 28,35 and 18) is judged as touch-control value valley point VP, then these touch-control value valley points
VP is then no longer compared with other touch-control values in touch-control value comparison procedure.And, pass through these touch-control values valley point VP, touch-control block
210 can be cut into two regions, and (region and region shown in blank boxes as shown in Fig. 2 bend grid), including first
The touch-control value (as shown in oblique line grid) of these touch areas in the region of touch point TP1 is corresponding first touch point TP1.Connect
, in these touch areas in the region not comprising the first touch point TP1, (there is touching of non-corresponding the first touch point TP1
Control value), in touch-control value (as shown in blank boxes), the touch area corresponding to highest touch-control value (here is 55) is judged as second
Touch point TP2.After this, the touch-control value 55 of corresponding second touch point TP2 respectively with the touch-control adjacent to the second touch point TP2
The touch-control value (i.e. 43,48 and 36) in region compares, but will not compare with the touch-control value 28 being judged to touch-control value valley point VP.Due to touching
Control value 55 is more than touch-control value 43,48 and 36, and therefore touch-control value 55 will not be judged as touch-control value valley point VP.
Based on Fig. 2, adjacent to the touch area on the right side of the second touch point TP2 touch-control value 43 can with adjacent to this touch-control value
The touch-control value 23 and 36 of the touch area of on the right side of 43 corresponding touch areas and lower section compares, above-mentioned touch-control value 36 can with adjacent to
Touch-control value 21 below this corresponding touch area of touch-control value 36 compares.According to comparative result, touch-control value 43,23 and 36 will not be by
It is judged as touch-control value valley point VP.Touch-control value 48 adjacent to the touch area on the downside of the second touch point TP2 can be touched with adjacent to this
The touch-control value 40 and 28 of the touch area of on the left of the corresponding touch area of control value 48 and lower section compares.Furthermore, above-mentioned touch-control value 28
Can compare with the touch-control value 25 adjacent to the touch area on the left of this corresponding touch area of touch-control value 28, the meeting of above-mentioned touch-control value 40
Compare with adjacent to the touch-control value 25 on the left of this corresponding touch area of touch-control value 40.According to comparative result, touch-control value 48,28,
40 and 25 will not be judged as touch-control value valley point VP.And, it is adjacent adjacent to the touch area on the left of the second touch point TP2
The touch-control value of touch area is judged as touch-control value valley point VP, be used in touch-control value and compare for corresponding second touch point TP2 or, because
This above-mentioned touch-control value 36 will not be compared with the touch-control value of the touch area adjacent to this corresponding touch area of touch-control value 36, so that
Touch-control value valley point VP will not be judged as in touch-control value 36.
According to above-mentioned, touch control detection unit 110 can judge touch-control block 210 for corresponding multi-point touch, and by comparing
The corresponding touch-control value in two adjacent touch areas judging touch-control value valley point VP, so that these Touch Zones are judged by touch-control value valley point VP
Touch point (as the first touch point TP1 or the second touch point TP3) corresponding to domain (being equal to touch-control value).Therefore, touch when multiple
Control point is mutual excessively near and when causing corresponding touch area adjacent, touch control detection unit 110 can be distinguished by touch-control value valley point VP
Touch area corresponding to touch point.Therefore, will not judge above-mentioned adjacent touch area by accident is corresponding same touch point.
Fig. 3 is the flow chart of the touch control detecting method of contactor control device according to one embodiment of the invention.Refer to Fig. 3,
In the present embodiment, the touch control detecting method being applied to this contactor control device comprises the following steps.Obtain multiple touch-controls of contact panel
Region corresponding multiple touch-control values (step S310) respectively.Determine touch-control block according to these touch-control values and touch-control marginal value, its
In be located at Touch Zone block these touch areas be (step S320) adjacent one another are.Sequentially it is compared to each other adjacent in touch-control block touching
Control region corresponding touch-control value is to judge whether touch-control block has touch-control value valley point (step S330).Whether foundation has touch-control value paddy
Point judges touch-control block for corresponding single-point touch or multi-point touch (step S340).Additionally, when the touch area in touch-control block
When corresponding touch-control value all compares for controlling value, then the touch area corresponding touch-control value that can stop from touch-control block judges
Touch-control value valley point.Wherein, the details of above-mentioned steps can refer to the explanation of Fig. 1 and Fig. 2, then repeats no more at this.
In sum, the contactor control device of the embodiment of the present invention and the touch control detecting method being applied to this contactor control device, its according to
Sequence is compared to each other in touch-control block the touch-control value corresponding to adjacent touch region to determine whether touch-control value valley point, and according to being
No have touch-control value valley point to judge touch-control block for corresponding single-point touch or multi-point touch.And, also according to the touch-control being judged
Value valley point is distinguished all touch areas in touch-control block and is distinguished corresponding touch point.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any people in the art
Member, without departing from the spirit and scope of the present invention, when can many modifications may be made and modification, therefore protection scope of the present invention is when regarding
Claims are defined.
Claims (9)
1. a kind of contactor control device, including：
Contact panel, has multiple touch areas；And
Touch control detection unit, couples described contact panel, in order to detect the corresponding multiple touch-control values in the plurality of touch area, and
And determining touch-control block according to the plurality of touch-control value and touch-control marginal value, wherein said touch control detection unit is sequentially compared to each other
In corresponding described touch-control block, the plurality of touch-control value in adjacent touch region is to judge whether described touch-control block has touch-control value
Valley point, and whether foundation has described touch-control value valley point to judge described touch-control block for single-point touch or multi-point touch, positioned at described
The plurality of touch area of touch-control block is adjacent one another are,
Wherein said touch control detection unit using the touch area of corresponding first highest touch-control value as the first touch point, and with institute
Stating the first touch point is to compare starting point to be sequentially compared to each other the plurality of touch-control value in corresponding adjacent touch region, and works as
In described adjacent touch region from described first touch point the corresponding first touch-control value in touch area farther out be more than described adjacent
In touch area during the corresponding second touch-control value in another touch area close to described first touch point, described touch control detection list
Unit judges described second touch-control value for described touch-control value valley point, and judges that corresponding described first touches according to described touch-control value valley point
The plurality of touch-control value of control point, and the second highest in the plurality of touch-control value of the first touch point described in non-corresponding is tactile
The corresponding touch area of control value is as the second touch point.
2. contactor control device as claimed in claim 1, wherein when the plurality of touch-control value of corresponding described touch-control block is all mutual
Relatively more out-of-date, described touch control detection unit stops judging the described touch-control value valley point of described touch-control block.
3. contactor control device as claimed in claim 1, each the plurality of touch-control value wherein corresponding to described touch-control block is all more than
Equal to described touch-control marginal value.
4. contactor control device as claimed in claim 1, wherein when not having described touch-control value valley point, described touch control detection unit is sentenced
The described touch-control block that breaks is single-point touch, and when there being described touch-control value valley point, touches described in described touch control detection unit judges
Control block is multi-point touch.
5. contactor control device as claimed in claim 1, wherein said contact panel is projected capacitive touch panel or digital
Resistance contact panel.
6. a kind of touch control detecting method of the contactor control device according to any one of claim 1-5, including：
Multiple touch-control values corresponding to multiple touch areas of the contact panel obtaining described contactor control device；
Determine touch-control block according to the plurality of touch-control value and touch-control marginal value, be wherein located at the plurality of of described touch-control block
Touch area is adjacent one another are；
The plurality of touch-control value being sequentially compared to each other adjacent touch region in corresponding described touch-control block is to judge described touch-control
Whether block has touch-control value valley point；And
Whether foundation has described touch-control value valley point to judge described touch-control block for corresponding single-point touch or multi-point touch,
The plurality of touch-control value being wherein sequentially compared to each other adjacent touch region in corresponding described touch-control block is described to judge
Whether touch-control block has the step of described touch-control value valley point to include：
Using the touch area of the first highest touch-control value having in the corresponding the plurality of touch-control value of described touch-control block as
One touch point；
Sequentially it is compared to each other the plurality of touch-control value in adjacent touch region with described first touch point for comparing starting point；
When in described adjacent touch region, from described first touch point, the corresponding first touch-control value in touch area farther out is more than institute
When stating in adjacent touch region the corresponding second touch-control value in another touch area close to described first touch point, judge described the
Two touch-control values are described touch-control value valley point；And
Judge the plurality of touch-control value of corresponding described first touch point according to described touch-control value valley point, and described in non-corresponding
The corresponding touch area of the second highest touch-control value in the plurality of touch-control value of the first touch point is as the second touch point.
7. the touch control detecting method of contactor control device as claimed in claim 6, also includes：
When the plurality of touch-control value of corresponding described touch-control block is all compared to each other out-of-date, stop judging the institute of described touch-control block
State touch-control value valley point.
8. the touch control detecting method of contactor control device as claimed in claim 6, wherein corresponds to each described many of described touch-control block
Individual touch-control value is all more than or equal to described touch-control marginal value.
9. whether the touch control detecting method of contactor control device as claimed in claim 6, wherein foundation have described touch-control value valley point to sentence
The described touch-control block that breaks is that the step of corresponding single-point touch or multi-point touch includes：
When not having described touch-control value valley point, described touch-control block is judged as corresponding single-point touch；And
When there being described touch-control value valley point, described touch-control block is judged as corresponding multi-point touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248694.1A CN103576945B (en) | 2012-07-18 | 2012-07-18 | Contactor control device and its touch control detecting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248694.1A CN103576945B (en) | 2012-07-18 | 2012-07-18 | Contactor control device and its touch control detecting method |
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| Publication Number | Publication Date |
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| CN103576945A CN103576945A (en) | 2014-02-12 |
| CN103576945B true CN103576945B (en) | 2017-03-01 |
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| CN201210248694.1A Active CN103576945B (en) | 2012-07-18 | 2012-07-18 | Contactor control device and its touch control detecting method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6443669B2 (en) * | 2014-12-26 | 2018-12-26 | Ｔｉａｎｍａ Ｊａｐａｎ株式会社 | Resistive touch panel, composite touch panel, touch panel drive method, and display device |
| CN112764655B (en) * | 2019-10-21 | 2022-05-31 | 无锡飞翎电子有限公司 | Touch area determination method and device, electric appliance and computer readable storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201013490A (en) * | 2008-09-30 | 2010-04-01 | Au Optronics Corp | Detecting method for a touch panel |
| CN102419487A (en) * | 2010-09-24 | 2012-04-18 | 株式会社日立显示器 | Display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8427451B2 (en) * | 2009-12-30 | 2013-04-23 | Wacom Co., Ltd. | Multi-touch sensor apparatus and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201013490A (en) * | 2008-09-30 | 2010-04-01 | Au Optronics Corp | Detecting method for a touch panel |
| CN102419487A (en) * | 2010-09-24 | 2012-04-18 | 株式会社日立显示器 | Display device |
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| CN103576945A (en) | 2014-02-12 |
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