WO2015180387A1 - 触摸屏控制方法和装置 - Google Patents

触摸屏控制方法和装置 Download PDF

Info

Publication number
WO2015180387A1
WO2015180387A1 PCT/CN2014/089256 CN2014089256W WO2015180387A1 WO 2015180387 A1 WO2015180387 A1 WO 2015180387A1 CN 2014089256 W CN2014089256 W CN 2014089256W WO 2015180387 A1 WO2015180387 A1 WO 2015180387A1
Authority
WO
WIPO (PCT)
Prior art keywords
interference level
capacitance value
conductive liquid
operation mode
touch screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/089256
Other languages
English (en)
French (fr)
Inventor
杨坤
张博
肖翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiaomi Inc
Original Assignee
Xiaomi Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiaomi Inc filed Critical Xiaomi Inc
Priority to MX2014015466A priority Critical patent/MX349778B/es
Priority to BR112015000277-3A priority patent/BR112015000277B1/pt
Priority to RU2014154249A priority patent/RU2608463C2/ru
Priority to KR1020147035913A priority patent/KR101785144B1/ko
Priority to JP2016522259A priority patent/JP6046315B2/ja
Priority to US14/585,687 priority patent/US9785295B2/en
Publication of WO2015180387A1 publication Critical patent/WO2015180387A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/041662—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving using alternate mutual and self-capacitive scanning
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04186—Touch location disambiguation

Definitions

  • the present disclosure relates to the field of screen touch technologies, and in particular, to a touch screen control method and apparatus.
  • the touch screen is mainly divided into a pressure sensing type touch screen, a resistive touch screen, a capacitive touch screen, an infrared touch screen, and a surface acoustic wave type touch screen.
  • capacitive touch screen is undoubtedly the most widely used touch screen.
  • the capacitive touch screen includes lateral and longitudinal electrode arrays made of ITO (Indium Tin Oxide), which form a plurality of test points evenly distributed on the surface of the screen. Since self-capacitance can be generated between adjacent electrodes, the self-capacitance scanning method can be used to detect the change of the self-capacitance value of each test point, so that the single-point touch can be detected. In addition, since mutual capacitance can also be generated between adjacent electrodes, multi-touch detection can be realized by collecting changes in mutual capacitance values of respective test points by mutual capacitance scanning.
  • ITO Indium Tin Oxide
  • the disclosed person finds that the above method has at least the following defects: when a common conductive liquid such as water, oil, milk covers the surface of the capacitive touch screen, the conductive liquid may seriously affect the sensitivity of the capacitive touch screen. And detection accuracy.
  • a common conductive liquid such as water, oil, milk covers the surface of the capacitive touch screen
  • the conductive liquid may seriously affect the sensitivity of the capacitive touch screen.
  • detection accuracy Taking water as an example, when the surface of the capacitive touch screen is covered with water, the change in capacitance generated by the user's finger touch will be disturbed by water, and the specific expression is that the touch operation is unresponsive, the error is reflected, or the single-finger operation is recognized as multi-finger operation. and many more.
  • the embodiment of the present disclosure provides a touch screen control method and apparatus.
  • the technical solution is as follows:
  • a touch screen control method comprising:
  • the touch screen is controlled to be in an operational mode corresponding to the interference level.
  • determining the interference level of the conductive liquid according to the change of the actual capacitance value relative to the reference capacitance value including:
  • the actual self-capacitance value of the point is the same as the reference self-capacitance value, and the actual mutual capacitance value of the test point is different from the reference mutual capacitance value; wherein the reference self-capacitance value refers to the time when the test point is not affected by the conductive medium.
  • the self-capacitance value, the reference mutual capacitance value refers to a mutual capacitance value when the test point is not affected by a conductive medium;
  • test point If the test point satisfies the predetermined condition, determining that the surface of the test point has the conductive liquid covering, and determining the coverage of the conductive liquid according to a difference between the actual mutual capacitance value and the reference mutual capacitance value The difference is positively related to the coverage;
  • the interference level of the conductive liquid is determined according to an actual coverage and coverage of the conductive liquid on the surface of the touch screen.
  • controlling the touch screen is in an operation mode corresponding to the interference level, including:
  • the predetermined correspondence relationship includes a correspondence relationship between each interference level and each operation mode, where the operation mode includes a full-screen multi-finger operation mode, multiple fingers, and a single Refers to at least one of a mixed operation mode, a full-screen single-finger operation mode, and a full-screen stop operation mode;
  • the touch screen is controlled to be in the selected mode of operation.
  • the selecting from the predetermined correspondence, an operation mode corresponding to the interference level, including:
  • the interference level includes a first interference level, a second interference level, a third interference level, and a fourth interference level, in which the degree of interference is sequentially increased, if the interference level of the conductive liquid is the first interference level, then Selecting the full-screen multi-finger operation mode in the predetermined correspondence relationship; or
  • the interference level of the conductive liquid is the second interference level, selecting the multi-finger and single-finger hybrid operation mode from the predetermined correspondence relationship; or
  • the interference level of the conductive liquid is the third interference level, selecting the full-screen single-finger operation mode from the predetermined correspondence relationship; or
  • the interference level of the conductive liquid is the fourth interference level, selecting the full screen stop operation mode from the predetermined correspondence relationship.
  • the method further includes:
  • the range of the conductive liquid being determined according to the actual coverage of the conductive liquid on the surface of the touch screen, and the area of the conductive liquid range is larger than the actual coverage area;
  • At least one corresponding to a touch position entering the range of the conductive liquid is continuously obtained by a self-capacitance scanning method Associate the touch location.
  • the method further includes:
  • the operation mode of the touch screen is currently reported to the central processing unit CPU of the electronic device, and the CPU is configured to generate prompt information, where the prompt information is used to prompt an operation mode in which the touch screen is currently located.
  • a touch screen control apparatus comprising:
  • a capacitor acquisition module configured to acquire actual capacitance values of respective test points on the touch screen
  • a level determining module configured to determine an interference level of the conductive liquid according to a change of the actual capacitance value relative to the reference capacitance value, where the reference capacitance value refers to a capacitance value when the test point is not affected by the conductive medium;
  • a mode control module configured to control the touch screen to be in an operation mode corresponding to the interference level.
  • the level determining module includes: a condition detecting unit, an area determining unit, a range determining unit, and a level determining unit;
  • the condition detecting unit is configured to detect, for each test point, whether the test point satisfies a predetermined condition, the predetermined condition includes that an actual self-capacitance value of the test point is the same as a reference self-capacitance value, and the test The actual mutual capacitance value of the point is different from the reference mutual capacitance value; wherein the reference self-capacitance value refers to a self-capacitance value when the test point has no influence on the conductive medium, and the reference mutual capacitance value refers to the test point. The mutual capacitance value when the conductive medium is affected;
  • the coverage determining unit is configured to determine that the surface of the test point has the conductive liquid coverage when the test point satisfies the predetermined condition, according to a difference between the actual mutual capacitance value and the reference mutual capacitance value a value determining a coverage of the conductive liquid, the difference being positively correlated with the coverage;
  • the range determining unit is configured to determine an actual coverage range and a coverage amount of the conductive liquid on the surface of the touch screen according to whether the surface of each test point has the conductive liquid cover and the coverage of the conductive liquid;
  • the level determining unit is configured to determine an interference level of the conductive liquid according to an actual coverage and coverage of the conductive liquid on the touch screen surface.
  • the mode control module includes: a mode selection unit and a mode control unit;
  • the mode selection unit is configured to select an operation mode corresponding to the interference level from a predetermined correspondence relationship, where the predetermined correspondence relationship includes a correspondence between each interference level and each operation mode, where the operation mode includes a full screen At least one of a multi-finger operation mode, a multi-finger and single-finger hybrid operation mode, a full-screen single-finger operation mode, and a full-screen stop operation mode;
  • the mode control unit is configured to control the touch screen to be in the selected mode of operation.
  • the mode selection unit includes: a first selection subunit; or a second selection subunit; or a third selection subunit; or a fourth selection subunit;
  • the interference level includes a first interference level, a second interference level, a third interference level, and a fourth interference level, in which the degree of interference sequentially increases
  • the first selection subunit is configured to select the full screen multi-finger operation mode from the predetermined correspondence relationship when an interference level of the conductive liquid is the first interference level;
  • the second selection subunit is configured to when the interference level of the conductive liquid is the second interference level, Selecting the multi-finger and single-finger hybrid operation mode from the predetermined correspondence relationship;
  • the third selection subunit is configured to select the full screen single finger operation mode from the predetermined correspondence relationship when an interference level of the conductive liquid is the third interference level;
  • the fourth selection subunit is configured to select the full screen stop operation mode from the predetermined correspondence when the interference level of the conductive liquid is the fourth interference level.
  • the device further includes:
  • a multi-finger control module configured to control the touch screen to be in a multi-finger operation mode when the touch screen is in the multi-finger and single-finger hybrid operation mode
  • the location acquisition module is configured to acquire a touch location corresponding to the at least one finger by using a mutual capacitance scanning manner
  • a position detecting module configured to detect whether there is any touch position into the range of the conductive liquid, the range of the conductive liquid being determined according to an actual coverage of the conductive liquid on the surface of the touch screen, and an area of the range of the conductive liquid An area larger than the actual coverage;
  • a mode switching module configured to control the touch screen to switch from the multi-finger operation mode to the single-finger operation mode when any touch position enters the conductive liquid range
  • the position tracking module is configured to continue to acquire at least one associated touch location corresponding to the touch location of the range of conductive liquids by self-capacitance scanning.
  • the device further includes:
  • the mode reporting module is configured to report, to the central processing unit CPU of the electronic device, an operation mode in which the touch screen is currently located, where the CPU is configured to generate prompt information, where the prompt information is used to prompt the current operation of the touch screen mode.
  • a touch screen control apparatus including:
  • a memory for storing executable instructions of the processor
  • processor is configured to:
  • the touch screen is controlled to be in an operational mode corresponding to the interference level.
  • FIG. 1 is a flowchart of a touch screen control method according to an exemplary embodiment
  • FIG. 2 is a flowchart of a touch screen control method according to another exemplary embodiment
  • FIG. 3 is a block diagram of a touch screen control apparatus according to an exemplary embodiment
  • FIG. 4 is a block diagram of a touch screen control apparatus according to another exemplary embodiment
  • FIG. 5 is a block diagram of an apparatus, according to an exemplary embodiment.
  • the disclosed person finds that when a small amount of conductive liquid represented by water covers the surface of the touch screen, the change of the self-capacitance value caused by the finger touch is stably monitored by the Touch IC.
  • the change in mutual capacitance caused by finger touch is greatly affected by the conductive liquid, which is difficult to be stably monitored by the Touch IC. Therefore, if the surface of the touch screen is covered with a conductive liquid, or when the user's finger touches the conductive liquid, the touch screen can be controlled to monitor only the change of the self-capacitance value, and the detection of the single touch can be guaranteed to a certain extent.
  • the electronic device involved may be a mobile phone, a tablet computer, an e-book reader, and an MP3 (Moving Picture Experts Group Audio Layer III). Player, MP4 (Moving Picture Experts Group Audio Layer IV) player, laptop portable computer, desktop computer and smart TV, etc.
  • the electronic device includes a touch screen, and the touch screen is a capacitive touch screen, and the capacitive touch screen supports two modes of self-capacitance scanning and mutual capacitance scanning.
  • FIG. 1 is a flowchart of a touch screen control method according to an exemplary embodiment. The embodiment is illustrated by using the touch screen control method in an electronic device.
  • the touch screen control method can include the following steps:
  • step 102 actual capacitance values of respective test points on the touch screen are acquired.
  • step 104 the interference level of the conductive liquid is determined according to the change of the actual capacitance value relative to the reference capacitance value, and the reference capacitance value refers to the capacitance value when the test point is not affected by the conductive medium.
  • step 106 the touch screen is controlled to be in an operational mode corresponding to the interference level.
  • the touch screen control method determines the interference level of the conductive liquid according to the change of the actual capacitance value relative to the reference capacitance value by acquiring the actual capacitance value of each test point on the touch screen, and controls the touch screen to be in contact with The operation mode corresponding to the interference level; solving the problem that the sensitivity and detection accuracy of the capacitive touch screen are seriously affected when the conductive liquid covers the surface of the capacitive touch screen; controlling the touch screen according to the interference level of the conductive liquid is in the operation mode corresponding to the interference level It can greatly reduce the influence of conductive liquid on the touch screen, and improve the sensitivity and detection accuracy of the touch screen.
  • FIG. 2 is a flowchart of a touch screen control method according to another exemplary embodiment. The embodiment is illustrated by using the touch screen control method in an electronic device.
  • the touch screen control method can include the following steps:
  • step 201 the actual capacitance values of the respective test points on the touch screen are obtained.
  • the Touch IC obtains the actual self-capacitance value and the actual mutual capacitance value of each test point on the touch screen by self-capacitance scanning and mutual capacitance scanning.
  • step 202 the interference level of the conductive liquid is determined according to the change of the actual capacitance value with respect to the reference capacitance value.
  • the reference capacitance value also includes the reference self-capacitance value and the reference mutual capacitance value.
  • the reference self-capacitance value of the test point refers to the self-capacitance value when the test point has no influence on the conductive medium
  • the reference mutual capacitance value of the test point refers to the test point without the influence of the conductive medium.
  • Conductive media include fingers, conductive liquids, and any other electrically conductive material that can cause a change in the capacitance of the touch screen.
  • the touch IC can determine whether the surface of the test point has conductive liquid coverage according to whether the self-capacitance value of the test point and the mutual capacitance value change; further, the test point can also be determined according to the variation range. The amount of conductive liquid covering the surface. Based on this, the Touch IC can determine the actual coverage and coverage of the conductive liquid over the entire touch screen surface, and determine the interference level of the conductive liquid based on the actual coverage and coverage.
  • this step may include the following sub-steps:
  • test point For each test point, it is checked whether the test point satisfies the predetermined condition.
  • the predetermined condition includes that the actual self-capacitance value of the test point is the same as the reference self-capacitance value, and the actual mutual capacitance value of the test point is different from the reference mutual capacitance value.
  • the self-capacitance scanning method When the surface of the test point is covered with conductive liquid, if the self-capacitance scanning method is adopted, the self-capacitance value of the test point cannot be detected to change significantly, that is, the actual self-capacitance value is the same as or very close to the reference self-capacitance value.
  • the mutual capacitance scanning mode if the mutual capacitance scanning mode is adopted, the mutual capacitance value of the test point is detected to be significantly changed, that is, the actual mutual capacitance value and the reference mutual capacitance value are greatly different.
  • the Touch IC can determine whether there is conductive liquid coverage on the surface of the test point based on the change in the self-capacitance value and mutual capacitance value of the test point.
  • the touch IC It is impossible to determine whether the change is caused by the coverage of the conductive liquid or by the touch of a finger, and since the cover of the conductive liquid cannot make a significant change in the self-capacitance value of the test point, the finger touch causes a significant change in the self-capacitance value of the test point, Combined with the change of the self-capacitance value and the change of the mutual capacitance value, it is possible to accurately determine whether the surface of the test point has a conductive liquid covering.
  • test point satisfies the predetermined condition, it is determined that the surface of the test point has a conductive liquid cover, and the coverage of the conductive liquid is determined according to the difference between the actual mutual capacitance value and the reference mutual capacitance value.
  • the Touch IC determines that the surface of the test point has a conductive liquid coverage, and further determines the coverage of the conductive liquid according to the magnitude of the change in the mutual capacitance value.
  • the difference between the actual mutual capacitance value and the reference mutual capacitance value is positively correlated with the coverage of the conductive liquid. That is, the larger the variation of the mutual capacitance value, the more the coverage of the conductive liquid is; the smaller the variation range of the mutual capacitance value, the smaller the coverage of the conductive liquid.
  • test point does not satisfy the predetermined condition, it is determined that the surface of the test point is free of conductive liquid coverage.
  • the actual coverage and coverage of the conductive liquid on the touch screen surface is determined according to whether the surface of each test point has a conductive liquid coverage and a coverage of the conductive liquid.
  • the Touch IC After the Touch IC obtains the coverage of the conductive liquid on the surface of each test point and the coverage of the conductive liquid, the above information is integrated to determine the actual coverage and coverage of the conductive liquid over the entire touch screen surface.
  • the interference level of the conductive liquid is determined according to the actual coverage and coverage of the conductive liquid on the surface of the touch screen.
  • the first interference level, the second interference level, the third interference level, and the fourth interference level, in which the degree of interference is sequentially increased are set in advance.
  • the technician can set the numerical interval corresponding to the actual coverage and the numerical interval corresponding to the coverage for each interference level, and the Touch IC can determine the actual coverage and coverage of the conductive liquid on the surface of the touch screen. Corresponding numerical interval, and query to get the corresponding interference level.
  • the conductive liquid is water:
  • the Touch IC can determine the water interference level as the first interference level.
  • the water mist is composed of several water droplets that are difficult to distinguish with the naked eye.
  • the interference level of the water may be determined to be the first interference level.
  • the first threshold may be set between 0.25 ml and 0.5 ml.
  • the Touch IC can determine that the interference level of the water is the second interference level. For example, if the actual coverage of the water on the surface of the touch screen is small but the coverage reaches the first threshold, it can be determined that the interference level of the water is the second interference level.
  • the Touch IC can determine that the interference level of the water is the third interference level. For example, if the actual coverage of water on the surface of the touch screen is large and the coverage reaches a second threshold, it can be determined that the interference level of the water is the third interference level.
  • the second threshold is not less than the first threshold.
  • the Touch IC can determine that the interference level of the water is the fourth interference level.
  • the water film refers to a continuous uninterrupted water layer. For example, if the actual coverage of water on the surface of the touch screen is large and the coverage reaches a third threshold, it can be determined that the interference level of the water is the fourth interference level. Where the third threshold is greater than Second threshold.
  • the number of the interference levels may be set according to the actual situation. This embodiment is only exemplified by setting the four interference levels, which is not specifically limited in this embodiment.
  • the numerical interval corresponding to the actual coverage range corresponding to each interference level and the numerical interval corresponding to the coverage amount may be different.
  • the above numerical interval is set according to the size of the touch screen of the electronic device and combined with several experiments, and the embodiment of the present disclosure is not specifically limited.
  • step 203 the touch screen is controlled to be in an operational mode corresponding to the interference level.
  • This step can include the following sub-steps:
  • an operation mode corresponding to the interference level is selected from the predetermined correspondence.
  • the predetermined correspondence relationship includes a correspondence relationship between each interference level and each operation mode, and the operation mode includes at least one of a full-screen multi-finger operation mode, a multi-finger and single-finger hybrid operation mode, a full-screen single-finger operation mode, and a full-screen stop operation mode. .
  • the full-screen multi-finger operation mode means that the entire touch screen supports multi-finger touch; the multi-finger and single-finger mixed operation mode is to support multi-finger touch outside the electric liquid range and support single-finger touch within the range of conductive liquid; full-screen single-finger operation The mode means that the entire touch screen supports only one-finger touch; the full-screen stop operation mode means that the entire touch screen cannot support the touch operation, and the touch IC stops reporting the touch information to the CPU (Central Processing Unit).
  • CPU Central Processing Unit
  • the degree of interference may be increased, and the following steps may be included:
  • the full-screen multi-finger operation mode is selected from the predetermined correspondence.
  • the interference level of the first interference level is the lowest. In this case, the influence of the conductive liquid on the touch operation is little or no effect.
  • the Touch IC can still scan through the mutual capacitance or through the mutual capacitance scanning method and the self-capacitance scanning method. The combined approach accurately detects single-touch and multi-touch. Therefore, when the interference level of the conductive liquid is the first interference level, the Touch IC selects the full-screen multi-finger operation mode from the predetermined correspondence relationship to ensure normal detection of the multi-finger touch of the user.
  • the interference level of the conductive liquid is the second interference level
  • the multi-finger and single-finger mixed operation modes are selected from the predetermined correspondence.
  • the degree of interference of the second interference level with respect to the first interference level is increased, in which case a multi-finger and single-finger hybrid operation mode is employed.
  • the Touch IC can still accurately detect single-touch and multi-touch by mutual capacitance scanning or by mutual capacitance scanning and self-capacitance scanning.
  • the change of the self-capacitance value caused by the finger touch can be stably monitored by the Touch IC, and the change of the mutual capacitance value caused by the finger touch is greatly affected by the conductive liquid.
  • the Touch IC can ensure the normal detection of the user's single-finger touch by means of self-capacitance scanning, thereby ensuring normal inspection of single-finger operations such as clicking and sliding. Measurement.
  • the full-screen single-finger operation mode is selected from the predetermined correspondence.
  • the interference level of the third interference level is improved relative to the second interference level.
  • the full-screen single-finger operation mode is adopted, so that the touch IC detects the single-finger touch of the user through the self-capacitance scanning mode, thereby ensuring Detection accuracy of single-finger operations such as clicks, slides, and the like.
  • the fourth interference level has the highest degree of interference.
  • the conductive liquid has a great influence on the single-finger touch and the multi-finger touch.
  • the CPU causes some misoperations according to the wrong touch information, and the Touch IC selects the full-screen stop operation mode to stop reporting the touch information to the CPU.
  • the touch screen is controlled to be in the selected mode of operation.
  • the Touch IC After the Touch IC selects an operation mode corresponding to the interference level from the predetermined correspondence, the touch screen is controlled to be in the selected operation mode.
  • the electronic device controls and processes the touch operation when the touch screen is in the multi-finger and single-finger hybrid operation modes:
  • step 204 the touch screen is controlled to be in the multi-finger mode of operation when the touch screen is in the multi-finger and single-finger hybrid mode of operation.
  • the Touch IC first controls the touch screen to be in the multi-finger operation mode, and the multi-finger operation mode supports the user's multi-finger touch operation.
  • step 205 the touch position corresponding to the at least one finger is acquired by the mutual capacitance scanning method.
  • the multi-finger touch operation and the single-finger touch operation can be normally detected by the mutual capacitance scanning method or the mutual capacitance scanning method and the self-capacitance scanning method, and the corresponding corresponding to each finger is obtained. Touch location.
  • step 206 it is detected whether any of the touch locations are present into the range of conductive liquids.
  • the range of the conductive liquid is determined according to the actual coverage of the conductive liquid on the surface of the touch screen, and the area of the conductive liquid range is larger than the area of the actual coverage.
  • the area of the conductive liquid range is appropriately larger than the area of the actual coverage, and it can be ensured that the finger touches the conductive liquid to predict the touch position corresponding to the finger continuously and accurately in the subsequent process.
  • step 207 if any of the touch locations enters the conductive liquid range, the touch screen is controlled to switch from the multi-finger mode to the single-finger mode of operation.
  • the single-finger mode of operation supports the user's single-finger touch operation.
  • the single-finger touch operation can be normally detected by self-capacitance scanning.
  • step 208 the self-capacitance scanning mode continues to acquire the touch position corresponding to the range of the conductive liquid. At least one associated touch location.
  • the finger that enters the range of the conductive liquid is regarded as the finger that the user is performing the touch operation, and the touch position corresponding to the finger is continuously detected by the self-capacitance scanning method, so that the touch operation on the user can be largely ensured. Respond accurately.
  • the touch screen control method determines the interference level of the conductive liquid according to the change of the actual capacitance value relative to the reference capacitance value by acquiring the actual capacitance value of each test point on the touch screen, and controls the touch screen to be in contact with The operation mode corresponding to the interference level; solving the problem that the sensitivity and detection accuracy of the capacitive touch screen are seriously affected when the conductive liquid covers the surface of the capacitive touch screen; controlling the touch screen according to the interference level of the conductive liquid is in the operation mode corresponding to the interference level It can greatly reduce the influence of conductive liquid on the touch screen, and improve the sensitivity and detection accuracy of the touch screen.
  • the touch screen control method provided by the embodiment divides the conductive liquid into several interference levels according to different interference levels of the conductive liquid, and provides different control strategies for different interference levels, thereby minimizing the conductive liquid.
  • the impact on the touch screen When the degree of interference is low, the normal detection of multi-finger touch to the user can be ensured; when the degree of interference is high, the accurate detection of single-finger operations such as clicking and sliding is preferentially guaranteed; when the degree of interference is high, stopping to the CPU Report the touch information to prevent the CPU from receiving some wrong touches after receiving the wrong touch information.
  • the touch IC can also report the operation mode of the touch screen to the CPU of the electronic device, and the CPU is used to generate prompt information.
  • the prompt information is used to prompt the operation mode in which the touch screen is currently located, so that the user can know the operation mode in which the touch screen is currently located according to the prompt information.
  • the user can also know whether there is conductive liquid on the surface of the touch screen according to the prompt information, and when the conductive liquid affects the normal touch operation of the user, the user can timely remove the conductive liquid.
  • FIG. 3 is a block diagram of a touch screen control apparatus, which may be implemented as part or all of an electronic device by software, hardware, or a combination of both, according to an exemplary embodiment.
  • the touch screen control device may include a capacitance acquisition module 310, a level determination module 320, and a mode control module 330.
  • the capacitor acquisition module 310 is configured to acquire actual capacitance values of respective test points on the touch screen.
  • the level determining module 320 is configured to determine an interference level of the conductive liquid according to the change of the actual capacitance value relative to the reference capacitance value, where the reference capacitance value refers to a capacitance value when the test point is not affected by the conductive medium.
  • the mode control module 330 is configured to control the touch screen to be in an operation mode corresponding to the interference level.
  • the touch screen control device determines the interference level of the conductive liquid according to the change of the actual capacitance value relative to the reference capacitance value by acquiring the actual capacitance value of each test point on the touch screen, and controls the touch screen to be in contact with The operation mode corresponding to the interference level; solving the problem that the sensitivity and detection accuracy of the capacitive touch screen are seriously affected when the conductive liquid covers the surface of the capacitive touch screen; controlling the touch screen according to the interference level of the conductive liquid is in the operation mode corresponding to the interference level It can greatly reduce the influence of conductive liquid on the touch screen, and improve the sensitivity and detection accuracy of the touch screen.
  • FIG. 4 is a block diagram of a touch screen control apparatus that can be implemented as part or all of an electronic device by software, hardware, or a combination of both, according to another exemplary embodiment.
  • the touch screen control device may include a capacitance acquisition module 310, a level determination module 320, and a mode control module 330.
  • the capacitor acquisition module 310 is configured to acquire actual capacitance values of respective test points on the touch screen.
  • the level determining module 320 is configured to determine an interference level of the conductive liquid according to the change of the actual capacitance value relative to the reference capacitance value, where the reference capacitance value refers to a capacitance value when the test point is not affected by the conductive medium.
  • the level determining module 320 includes a condition detecting unit 320a, an overlay determining unit 320b, a range determining unit 320c, and a level determining unit 320d.
  • the condition detecting unit 320a is configured to detect, for each test point, whether the test point satisfies a predetermined condition, the predetermined condition that the actual self-capacitance value of the test point is the same as the reference self-capacitance value, and the The actual mutual capacitance value of the test point is different from the reference mutual capacitance value; wherein the reference self-capacitance value refers to a self-capacitance value when the test point has no influence on the conductive medium, and the reference mutual capacitance value refers to the test point. The mutual capacitance value when there is no conductive medium.
  • the coverage determining unit 320b is configured to determine that the surface of the test point has the conductive liquid covering when the test point satisfies the predetermined condition, according to the actual mutual capacitance value and the reference mutual capacitance value. The difference determines the amount of coverage of the electrically conductive liquid, the difference being positively correlated with the amount of coverage.
  • the range determining unit 320c is configured to determine an actual coverage and coverage of the conductive liquid on the surface of the touch screen according to whether the surface of each test point has the conductive liquid coverage and the coverage of the conductive liquid.
  • the level determining unit 320d is configured to determine an interference level of the conductive liquid according to an actual coverage and coverage of the conductive liquid on the surface of the touch screen.
  • the mode control module 330 is configured to control the touch screen to be in an operation mode corresponding to the interference level.
  • the mode control module 330 includes a mode selection unit 330a and a mode control unit 330b.
  • the mode selection unit 330a is configured to select an operation mode corresponding to the interference level from a predetermined correspondence relationship, where the predetermined correspondence relationship includes a correspondence relationship between each interference level and each operation mode, where the operation mode includes At least one of a full-screen multi-finger operation mode, a multi-finger and single-finger hybrid operation mode, a full-screen single-finger operation mode, and a full-screen stop operation mode.
  • the mode selection unit 330a includes: a first selection subunit 330a1; or a second selection subunit 330a2; or a third selection subunit 330a3; or a fourth selection subunit 330a4.
  • the interference level includes a first interference level, a second interference level, a third interference level, and a fourth interference level, in which the degree of interference sequentially increases
  • the first selection sub-unit 330a1 is configured to select the full-screen multi-finger operation mode from the predetermined correspondence relationship when an interference level of the conductive liquid is the first interference level;
  • the second selection subunit 330a2 is configured to select the multi-finger and single-finger hybrid operation mode from the predetermined correspondence relationship when an interference level of the conductive liquid is the second interference level;
  • the third selection sub-unit 330a3 is configured to select the full-screen single-finger operation mode from the predetermined correspondence relationship when an interference level of the conductive liquid is the third interference level;
  • the fourth selection subunit 330a4 is configured to select the full screen stop operation mode from the predetermined correspondence when the interference level of the conductive liquid is the fourth interference level.
  • the mode control unit 330b is configured to control the touch screen to be in the selected mode of operation.
  • the device further includes: a multi-finger control module 331 , a location acquiring module 332 , a location detecting module 333 , a mode switching module 334 , and a location tracking module 335 .
  • the multi-finger control module 331 is configured to control the touch screen to be in the multi-finger mode of operation when the touch screen is in the multi-finger and single-finger hybrid mode of operation.
  • the location obtaining module 332 is configured to acquire a touch location corresponding to the at least one finger by using a mutual capacitance scanning manner.
  • the position detecting module 333 is configured to detect whether there is any touch position into the conductive liquid range, the conductive liquid range is determined according to the actual coverage of the conductive liquid on the touch screen surface, and the conductive liquid range The area is larger than the area of the actual coverage.
  • the mode switching module 334 is configured to control the touch screen to switch from the multi-finger mode of operation to the single-finger mode of operation when any touch location enters the conductive liquid range.
  • the location tracking module 335 is configured to continue to acquire at least one associated touch location corresponding to the touch location of the conductive liquid range by self-capacitance scanning.
  • the device further includes: a mode reporting module 336.
  • the mode reporting module 336 is configured to report, to the central processing unit CPU, an operation mode in which the touch screen is currently located, and the CPU is configured to generate prompt information, where the prompt information is used to prompt an operation mode in which the touch screen is currently located.
  • the touch screen control device determines the interference level of the conductive liquid according to the change of the actual capacitance value relative to the reference capacitance value by acquiring the actual capacitance value of each test point on the touch screen, and controls the touch screen to be in contact with The operation mode corresponding to the interference level; solving the problem that the sensitivity and detection accuracy of the capacitive touch screen are seriously affected when the conductive liquid covers the surface of the capacitive touch screen; controlling the touch screen according to the interference level of the conductive liquid is in the operation mode corresponding to the interference level It can greatly reduce the influence of conductive liquid on the touch screen, and improve the sensitivity and detection accuracy of the touch screen.
  • the touch screen control device divides the conductive liquid into several interference levels according to different interference levels of the conductive liquid, and provides different control strategies for different interference levels, thereby minimizing the conductive liquid.
  • the impact on the touch screen When the degree of interference is low, the normal detection of multi-finger touch to the user can be ensured; when the degree of interference is high, the accurate detection of single-finger operations such as clicking and sliding is preferentially guaranteed; when the degree of interference is high, stopping to the CPU Report the touch information to prevent the CPU from receiving some wrong touches after receiving the wrong touch information.
  • FIG. 5 is a block diagram of an apparatus 500 for touch screen control, according to an exemplary embodiment.
  • device 500 can be a touch chip Touch IC.
  • apparatus 500 can include one or more of the following components: processing component 502 and memory 504.
  • Processing component 502 typically controls the overall operation of device 500, such as acquiring capacitance values for various test points on the touch screen of the electronic device, controlling the mode of operation in which the touch screen is located, reporting information to the CPU of the electronic device, and the like.
  • Processing component 502 can include one or more processors 520 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 502 can include one or more modules to facilitate interaction between component 502 and other components.
  • Memory 504 is configured to store various types of data to support operation at device 500. Examples of such data include instructions for any application or method operating on device 500.
  • the memory 504 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable. Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Electrically erasable programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • apparatus 500 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component is implemented for performing the touch screen control method shown in FIG. 1 or FIG. 2 above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component is implemented for performing the touch screen control method shown in FIG. 1 or FIG. 2 above.
  • non-transitory computer readable storage medium comprising instructions, such as a memory 504 comprising instructions executable by processor 520 of apparatus 500 to perform the above described FIG. 1 or FIG.
  • the touch screen control method shown may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.
  • a non-transitory computer readable storage medium that, when executed by a processor of apparatus 500, causes apparatus 500 to perform the touch screen control method illustrated in FIG. 1 or FIG. 2 above.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

本公开是关于一种触摸屏控制方法和装置，属于屏幕触控技术领域。所述方法包括：获取触摸屏上各个测试点的实际电容值；根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，该基准电容值是指测试点无导电介质影响时的电容值；控制触摸屏处于与干扰级别对应的操作模式。本公开解决了导电液体覆盖于电容式触摸屏表面时，电容式触摸屏的灵敏度和检测精度会受严重影响的问题；根据导电液体的干扰级别控制触摸屏处于与干扰级别对应的操作模式，可以在很大程度上减轻导电液体对触摸屏的影响，提高触摸屏的灵敏度和检测精度。

Description

触摸屏控制方法和装置
本申请基于申请号为201410238770.X、申请日为2014年5月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及屏幕触控技术领域，特别涉及一种触摸屏控制方法和装置。
背景技术
随着屏幕触控技术的快速发展，采用触摸屏的电子设备已被广泛应用。触摸屏主要分为压力传感式触摸屏、电阻式触摸屏、电容式触摸屏、红外线触摸屏以及表面声波式触摸屏等种类。其中，电容式触摸屏无疑是应用最为广泛的触摸屏。
电容式触摸屏包括利用ITO(Indium Tin Oxide，氧化铟锡)制成的横向和纵向的电极阵列，该横向和纵向的电极阵列构成在屏幕表面均匀分布的若干个测试点。由于相邻电极之间可以产生自电容，所以通过自电容扫描方式采集各个测试点的自电容值的变化，可以实现对单点触摸的检测。另外，由于相邻电极之间也可以产生互电容，所以通过互电容扫描方式采集各个测试点的互电容值的变化，可以实现对多点触摸的检测。
公开人在实现本公开的过程中，发现上述方式至少存在如下缺陷：当诸如水、油、牛奶之类常见的导电液体覆盖于电容式触摸屏表面时，这些导电液体会严重影响电容式触摸屏的灵敏度和检测精度。以水为例，当电容式触摸屏表面有水覆盖时，用户手指触摸所产生的电容变化将会受到水的干扰，具体表现为触摸操作无反应、错误反映或者单指操作被识别为多指操作等等。
发明内容
为了解决导电液体覆盖于电容式触摸屏表面时，电容式触摸屏的灵敏度和检测精度会受严重影响的问题，本公开实施例提供了一种触摸屏控制方法和装置。所述技术方案如下：
根据本公开实施例的第一方面，提供了一种触摸屏控制方法，所述方法包括：
获取触摸屏上各个测试点的实际电容值；
根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值；
控制所述触摸屏处于与所述干扰级别对应的操作模式。
可选的，所述根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，包括：
对于每一个测试点，检测所述测试点是否满足预定条件，所述预定条件包括所述测试 点的实际自电容值与基准自电容值相同，且所述测试点的实际互电容值与基准互电容值不同；其中，所述基准自电容值是指所述测试点无导电介质影响时的自电容值，所述基准互电容值是指所述测试点无导电介质影响时的互电容值；
若所述测试点满足所述预定条件，则确定所述测试点表面有所述导电液体覆盖，根据所述实际互电容值与所述基准互电容值的差值确定所述导电液体的覆盖量，所述差值与所述覆盖量成正相关关系；
根据每个测试点表面是否有所述导电液体覆盖以及所述导电液体的覆盖量确定所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量；
根据所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量确定所述导电液体的干扰级别。
可选的，所述控制所述触摸屏处于与所述干扰级别对应的操作模式，包括：
从预定对应关系中选择与所述干扰级别对应的操作模式，所述预定对应关系包括各个干扰级别与各个操作模式之间的对应关系，所述操作模式包括全屏多指操作模式、多指和单指混合操作模式、全屏单指操作模式和全屏停止操作模式中的至少一种；
控制所述触摸屏处于被选择的所述操作模式。
可选的，所述从预定对应关系中选择与所述干扰级别对应的操作模式，包括：
当所述干扰级别包括干扰程度依次递增的第一干扰级别、第二干扰级别、第三干扰级别以及第四干扰级别时，若所述导电液体的干扰级别为所述第一干扰级别，则从所述预定对应关系中选择所述全屏多指操作模式；或者，
若所述导电液体的干扰级别为所述第二干扰级别，则从所述预定对应关系中选择所述多指和单指混合操作模式；或者，
若所述导电液体的干扰级别为所述第三干扰级别，则从所述预定对应关系中选择所述全屏单指操作模式；或者，
若所述导电液体的干扰级别为所述第四干扰级别，则从所述预定对应关系中选择所述全屏停止操作模式。
可选的，所述方法还包括：
当所述触摸屏处于所述多指和单指混合操作模式时，控制所述触摸屏处于多指操作模式；
通过互电容扫描方式获取至少一个手指所对应的触摸位置；
检测是否存在任一触摸位置进入导电液体范围，所述导电液体范围是根据所述导电液体在所述触摸屏表面的实际覆盖范围确定的，且所述导电液体范围的面积大于所述实际覆盖范围的面积；
若存在任一触摸位置进入所述导电液体范围，则控制所述触摸屏从所述多指操作模式切换至单指操作模式；
通过自电容扫描方式继续获取进入所述导电液体范围的触摸位置所对应的至少一个 关联触摸位置。
可选的，所述方法还包括：
向电子设备的中央处理器CPU上报所述触摸屏当前所处的操作模式，所述CPU用于生成提示信息，所述提示信息用于提示所述触摸屏当前所处的操作模式。
根据本公开实施例的第二方面，提供了一种触摸屏控制装置，所述装置包括：
电容获取模块，被配置为获取触摸屏上各个测试点的实际电容值；
级别确定模块，被配置为根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值；
模式控制模块，被配置为控制所述触摸屏处于与所述干扰级别对应的操作模式。
可选的，所述级别确定模块，包括：条件检测单元、覆盖确定单元、范围确定单元和级别确定单元；
所述条件检测单元，被配置为对于每一个测试点，检测所述测试点是否满足预定条件，所述预定条件包括所述测试点的实际自电容值与基准自电容值相同，且所述测试点的实际互电容值与基准互电容值不同；其中，所述基准自电容值是指所述测试点无导电介质影响时的自电容值，所述基准互电容值是指所述测试点无导电介质影响时的互电容值；
所述覆盖确定单元，被配置为当所述测试点满足所述预定条件时，确定所述测试点表面有所述导电液体覆盖，根据所述实际互电容值与所述基准互电容值的差值确定所述导电液体的覆盖量，所述差值与所述覆盖量成正相关关系；
所述范围确定单元，被配置为根据每个测试点表面是否有所述导电液体覆盖以及所述导电液体的覆盖量确定所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量；
所述级别确定单元，被配置为根据所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量确定所述导电液体的干扰级别。
可选的，所述模式控制模块，包括：模式选择单元和模式控制单元；
所述模式选择单元，被配置为从预定对应关系中选择与所述干扰级别对应的操作模式，所述预定对应关系包括各个干扰级别与各个操作模式之间的对应关系，所述操作模式包括全屏多指操作模式、多指和单指混合操作模式、全屏单指操作模式和全屏停止操作模式中的至少一种；
所述模式控制单元，被配置为控制所述触摸屏处于被选择的所述操作模式。
可选的，所述模式选择单元，包括：第一选择子单元；或者，第二选择子单元；或者，第三选择子单元；或者，第四选择子单元；
当所述干扰级别包括干扰程度依次递增的第一干扰级别、第二干扰级别、第三干扰级别以及第四干扰级别时，
所述第一选择子单元，被配置为当所述导电液体的干扰级别为所述第一干扰级别时，从所述预定对应关系中选择所述全屏多指操作模式；
所述第二选择子单元，被配置为当所述导电液体的干扰级别为所述第二干扰级别时， 从所述预定对应关系中选择所述多指和单指混合操作模式；
所述第三选择子单元，被配置为当所述导电液体的干扰级别为所述第三干扰级别时，从所述预定对应关系中选择所述全屏单指操作模式；
所述第四选择子单元，被配置为当所述导电液体的干扰级别为所述第四干扰级别时，从所述预定对应关系中选择所述全屏停止操作模式。
可选的，所述装置还包括：
多指控制模块，被配置为当所述触摸屏处于所述多指和单指混合操作模式时，控制所述触摸屏处于多指操作模式；
位置获取模块，被配置为通过互电容扫描方式获取至少一个手指所对应的触摸位置；
位置检测模块，被配置为检测是否存在任一触摸位置进入导电液体范围，所述导电液体范围是根据所述导电液体在所述触摸屏表面的实际覆盖范围确定的，且所述导电液体范围的面积大于所述实际覆盖范围的面积；
模式切换模块，被配置为当存在任一触摸位置进入所述导电液体范围时，控制所述触摸屏从所述多指操作模式切换至单指操作模式；
位置跟踪模块，被配置为通过自电容扫描方式继续获取进入所述导电液体范围的触摸位置所对应的至少一个关联触摸位置。
可选的，所述装置还包括：
模式上报模块，被配置为向电子设备的中央处理器CPU上报所述触摸屏当前所处的操作模式，所述CPU用于生成提示信息，所述提示信息用于提示所述触摸屏当前所处的操作模式。
根据本公开实施例的第三方面，提供了一种触摸屏控制装置，包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
获取触摸屏上各个测试点的实际电容值；
根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值；
控制所述触摸屏处于与所述干扰级别对应的操作模式。
本公开实施例提供的技术方案可以包括以下有益效果：
通过获取触摸屏上各个测试点的实际电容值，根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，并控制触摸屏处于与干扰级别对应的操作模式；解决了导电液体覆盖于电容式触摸屏表面时，电容式触摸屏的灵敏度和检测精度会受严重影响的问题；根据导电液体的干扰级别控制触摸屏处于与干扰级别对应的操作模式，可以在很大程度上减轻导电液体对触摸屏的影响，提高触摸屏的灵敏度和检测精度。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限 制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种触摸屏控制方法的流程图；
图2是根据另一示例性实施例示出的一种触摸屏控制方法的流程图；
图3是根据一示例性实施例示出的一种触摸屏控制装置的框图；
图4是根据另一示例性实施例示出的一种触摸屏控制装置的框图；
图5是根据一示例性实施例示出的一种装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
在实现本公开的过程中，公开人发现：当少量以水为代表的导电液体覆盖于触摸屏表面时，手指触摸所引发的自电容值的变化是能够被Touch IC(触摸芯片)稳定监测到的；而手指触摸所引发的互电容值的变化受导电液体影响较大，其很难被Touch IC稳定监测到。因此，如果当触摸屏表面有导电液体覆盖时，或者当用户手指触碰到导电液体时，能够控制触摸屏处于只监测自电容值的变化情况的模式，保证对单点触摸的检测，可以在一定程度上减少导电液体对触摸屏的灵敏度和检测精度的影响，同时能够满足对诸如点击、滑动等单指操作进行正常检测。下面，将通过几个实施例对本公开提供的技术方案进行详细介绍和说明。
首先需要说明的一点是：在本公开各个实施例中，涉及的电子设备可以是手机、平板电脑、电子书阅读器、MP3(Moving Picture Experts Group Audio Layer III，动态影像专家压缩标准音频层面3)播放器、MP4(Moving Picture Experts Group Audio Layer IV，动态影像专家压缩标准音频层面4)播放器、膝上型便携计算机、台式计算机和智能电视等等。该电子设备包括触摸屏，且该触摸屏为电容式触摸屏，该电容式触摸屏支持自电容扫描和互电容扫描两种方式。
图1是根据一示例性实施例示出的一种触摸屏控制方法的流程图，本实施例以该触摸屏控制方法应用于电子设备中来举例说明。该触摸屏控制方法可以包括如下几个步骤：
在步骤102中，获取触摸屏上各个测试点的实际电容值。
在步骤104中，根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，该基准电容值是指测试点无导电介质影响时的电容值。
在步骤106中，控制触摸屏处于与干扰级别对应的操作模式。
综上所述，本实施例提供的触摸屏控制方法，通过获取触摸屏上各个测试点的实际电容值，根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，并控制触摸屏处于与干扰级别对应的操作模式；解决了导电液体覆盖于电容式触摸屏表面时，电容式触摸屏的灵敏度和检测精度会受严重影响的问题；根据导电液体的干扰级别控制触摸屏处于与干扰级别对应的操作模式，可以在很大程度上减轻导电液体对触摸屏的影响，提高触摸屏的灵敏度和检测精度。
图2是根据另一示例性实施例示出的一种触摸屏控制方法的流程图，本实施例以该触摸屏控制方法应用于电子设备中来举例说明。该触摸屏控制方法可以包括如下几个步骤：
在步骤201中，获取触摸屏上各个测试点的实际电容值。
Touch IC分别通过自电容扫描和互电容扫描的方式获取触摸屏上各个测试点的实际自电容值和实际互电容值。
在步骤202中，根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别。
当实际电容值包括实际自电容值和实际互电容值时，基准电容值也对应包括基准自电容值和基准互电容值。其中，对于某一测试点来说，测试点的基准自电容值是指该测试点无导电介质影响时的自电容值，测试点的基准互电容值是指该测试点无导电介质影响时的互电容值。导电介质包括手指、导电液体以及其它任何能够引起触摸屏的电容值发生变化的导电材料。
对于触摸屏中的任一测试点，Touch IC可以根据该测试点的自电容值以及互电容值是否发生变化确定该测试点表面是否有导电液体覆盖；进一步地，还可以根据变化幅度确定该测试点表面的导电液体的覆盖量。在此基础上，Touch IC可以确定出导电液体在整个触摸屏表面的实际覆盖范围和覆盖量，并根据该实际覆盖范围和覆盖量确定导电液体的干扰级别。
在一种可能的实现方式中，本步骤可以包括如下几个子步骤：
第一，对于每一个测试点，检测测试点是否满足预定条件。
其中，预定条件包括测试点的实际自电容值与基准自电容值相同，且测试点的实际互电容值与基准互电容值不同。
当测试点表面有导电液体覆盖时，若采用自电容扫描方式，则无法检测出该测试点的自电容值发生明显的变化，也即实际自电容值与基准自电容值相同或者非常接近。当测试点表面有导电液体覆盖时，若采用互电容扫描方式，则会检测出该测试点的互电容值发生较为明显的变化，也即实际互电容值与基准互电容值相差较大。利用这一特性，Touch IC可以根据测试点的自电容值和互电容值的变化情况确定出该测试点表面是否有导电液体覆盖。
需要说明的是，若仅通过互电容扫描方式检测测试点的互电容值的变化，则Touch IC 无法确定该变化是由导电液体覆盖所引发还是由手指触摸所引发，同时由于导电液体覆盖无法使测试点的自电容值发生明显变化而手指触摸会使测试点的自电容值发生明显变化，因此结合自电容值的变化情况和互电容值的变化情况就可以准确确定出测试点表面是否有导电液体覆盖。
第二，若测试点满足预定条件，则确定测试点表面有导电液体覆盖，根据实际互电容值与基准互电容值的差值确定导电液体的覆盖量。
当测试点满足预定条件时，Touch IC确定测试点表面有导电液体覆盖，并进一步根据互电容值的变化幅度确定导电液体的覆盖量。其中，实际互电容值与基准互电容值的差值与导电液体的覆盖量成正相关关系。也即，互电容值的变化幅度越大，说明导电液体的覆盖量越多；互电容值的变化幅度越小，说明导电液体的覆盖量越少。
另外，若测试点不满足预定条件，则确定测试点表面无导电液体覆盖。
第三，根据每个测试点表面是否有导电液体覆盖以及导电液体的覆盖量确定导电液体在触摸屏表面的实际覆盖范围和覆盖量。
Touch IC获取每个测试点表面是否有导电液体覆盖以及导电液体的覆盖量之后，对上述信息进行整合确定出导电液体在整个触摸屏表面的实际覆盖范围和覆盖量。
第四，根据导电液体在触摸屏表面的实际覆盖范围和覆盖量确定导电液体的干扰级别。
在本实施例中，假设预先设定干扰程度依次递增的第一干扰级别、第二干扰级别、第三干扰级别以及第四干扰级别。技术人员可以预先为各个干扰级别设定对应的实际覆盖范围所对应的数值区间以及覆盖量所对应的数值区间，Touch IC便可在获取导电液体在触摸屏表面的实际覆盖范围和覆盖量之后，确定对应的数值区间，并查询得到对应的干扰级别。
在可能的实现方式中，以导电液体是水为例：
1、当触摸屏表面无水或者有较薄水雾时，Touch IC可以确定水的干扰级别为第一干扰级别。其中，水雾是由若干个肉眼不易分辨的水滴构成。比如，若水在触摸屏表面的实际覆盖范围较大但覆盖量小于第一阈值，则可确定水的干扰级别为第一干扰级别。在示例性的实施例中，第一阈值可以设定在0.25ml至0.5ml之间。
2、当触摸屏表面有小水滴时，Touch IC可以确定水的干扰级别为第二干扰级别。比如，若水在触摸屏表面的实际覆盖范围较小但覆盖量达到了第一阈值，则可确定水的干扰级别为第二干扰级别。
3、当触摸屏表面有较厚水雾时，Touch IC可以确定水的干扰级别为第三干扰级别。比如，若水在触摸屏表面的实际覆盖范围较大且覆盖量达到了第二阈值，则可确定水的干扰级别为第三干扰级别。其中，第二阈值不小于第一阈值。
4、当触摸屏表面有大水滴或者水膜时，Touch IC可以确定水的干扰级别为第四干扰级别。其中，水膜是指连续无间断的水层。比如，若水在触摸屏表面的实际覆盖范围较大且覆盖量达到了第三阈值，则可确定水的干扰级别为第四干扰级别。其中，第三阈值大于 第二阈值。
需要说明的一点是：关于干扰级别的数量可根据实际情况进行设定，本实施例仅以设定4个干扰级别来举例说明，对此本公开实施例不作具体限定。
还需要说明的一点是：由于不同电子设备的触摸屏的尺寸不同，各个干扰级别对应的实际覆盖范围所对应的数值区间以及覆盖量所对应的数值区间也会有所不同，在实际应用中，可根据电子设备的触摸屏的尺寸并结合若干次的实验对上述数值区间进行设定，对此本公开实施例也不作具体限定。
在步骤203中，控制触摸屏处于与干扰级别对应的操作模式。
本步骤可以包括如下几个子步骤：
第一，从预定对应关系中选择与干扰级别对应的操作模式。
预定对应关系包括各个干扰级别与各个操作模式之间的对应关系，操作模式包括全屏多指操作模式、多指和单指混合操作模式、全屏单指操作模式和全屏停止操作模式中的至少一种。
其中，全屏多指操作模式是指整个触摸屏支持多指触摸；多指和单指混合操作模式是指导电液体范围之外支持多指触摸而导电液体范围之内支持单指触摸；全屏单指操作模式是指整个触摸屏仅支持单指触摸；全屏停止操作模式是指整个触摸屏无法支持触摸操作，Touch IC停止向CPU(Central Processing Unit，中央处理器)上报触摸信息。
当导电液体的干扰级别包括干扰程度依次递增的第一干扰级别、第二干扰级别、第三干扰级别以及第四干扰级别时，本步骤可以包括如下几种情况：
1、若导电液体的干扰级别为第一干扰级别，则从预定对应关系中选择全屏多指操作模式。
第一干扰级别的干扰程度最低，在这种情况下，导电液体对触摸操作的影响很小或者没有影响，Touch IC仍然可以通过互电容扫描方式，或者通过互电容扫描方式与自电容扫描方式相结合的方式准确地对单点触摸以及多点触摸进行检测。因此，当导电液体的干扰级别为第一干扰级别时，Touch IC从预定对应关系中选择全屏多指操作模式，确保对用户多指触摸的正常检测。
2、若导电液体的干扰级别为第二干扰级别，则从预定对应关系中选择多指和单指混合操作模式。
第二干扰级别相对于第一干扰级别的干扰程度有所提高，在这种情况下，采用多指和单指混合操作模式。比如，当用户手指在导电液体范围之外时，Touch IC仍然可以通过互电容扫描方式，或者通过互电容扫描方式与自电容扫描方式相结合的方式准确地对单点触摸以及多点触摸进行检测；当用户手指在导电液体范围之内时，由于手指触摸所引发的自电容值的变化是能够被Touch IC稳定监测到的，而手指触摸所引发的互电容值的变化受导电液体影响较大，其很难被Touch IC稳定监测到，因此Touch IC可以通过自电容扫描方式保证对用户单指触摸的正常检测，以此保证对诸如点击、滑动等单指操作进行正常检 测。
3、若导电液体的干扰级别为第三干扰级别，则从预定对应关系中选择全屏单指操作模式。
第三干扰级别相对于第二干扰级别的干扰程度有所提高，在这种情况下，采用全屏单指操作模式，使得Touch IC通过自电容扫描方式对用户单指触摸进行检测，以此保证对诸如点击、滑动等单指操作的检测准确度。
4、若导电液体的干扰级别为第四干扰级别，则从预定对应关系中选择全屏停止操作模式。
第四干扰级别的干扰程度最高，在这种情况下，导电液体对单指触摸和多指触摸的影响都很大，为了避免Touch IC在检测到错误的触摸信号后向CPU上报错误的触摸信息，导致CPU根据该错误的触摸信息完成一些误操作，Touch IC选择全屏停止操作模式，停止向CPU上报触摸信息。
第二，控制触摸屏处于被选择的操作模式。
Touch IC从预定对应关系中选择与干扰级别对应的操作模式之后，控制触摸屏处于被选择的操作模式。
下面，将介绍当触摸屏处于多指和单指混合操作模式时，电子设备对触摸操作的控制和处理方式：
在步骤204中，当触摸屏处于多指和单指混合操作模式时，控制触摸屏处于多指操作模式。
在多指和单指混合操作模式下，Touch IC首先控制触摸屏处于多指操作模式，多指操作模式支持用户的多指触摸操作。
在步骤205中，通过互电容扫描方式获取至少一个手指所对应的触摸位置。
在多指操作模式下，可通过互电容扫描方式，或者通过互电容扫描方式与自电容扫描方式相结合的方式对多指触摸操作以及单指触摸操作进行正常检测，并获取每个手指所对应的触摸位置。
在步骤206中，检测是否存在任一触摸位置进入导电液体范围。
其中，导电液体范围是根据导电液体在触摸屏表面的实际覆盖范围确定的，且导电液体范围的面积大于实际覆盖范围的面积。导电液体范围的面积适当地大于实际覆盖范围的面积，可以保证对手指触及导电液体的情况进行预判，以便在后续过程中持续、准确地获取该手指所对应的触摸位置。
在步骤207中，若存在任一触摸位置进入导电液体范围，则控制触摸屏从多指操作模式切换至单指操作模式。
单指操作模式支持用户的单指触摸操作。在单指操作模式下，可通过自电容扫描方式对单指触摸操作进行正常检测。
在步骤208中，通过自电容扫描方式继续获取进入导电液体范围的触摸位置所对应的 至少一个关联触摸位置。
在本实施例中，将进入导电液体范围的手指认为用户正在进行触摸操作的手指，通过自电容扫描方式对该手指所对应的触摸位置进行持续检测，可以在很大程度上保证对用户触摸操作进行准确地响应。
综上所述，本实施例提供的触摸屏控制方法，通过获取触摸屏上各个测试点的实际电容值，根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，并控制触摸屏处于与干扰级别对应的操作模式；解决了导电液体覆盖于电容式触摸屏表面时，电容式触摸屏的灵敏度和检测精度会受严重影响的问题；根据导电液体的干扰级别控制触摸屏处于与干扰级别对应的操作模式，可以在很大程度上减轻导电液体对触摸屏的影响，提高触摸屏的灵敏度和检测精度。
另外，本实施例提供的触摸屏控制方法，根据导电液体的干扰程度的不同，将导电液体划分为若干个干扰级别，并针对不同的干扰级别提供了不同的控制策略，最大程度地减轻了导电液体对触摸屏的影响。当干扰程度较低时，可以确保对用户多指触摸的正常检测；当干扰程度较高时，优先保证对诸如点击、滑动等单指操作的准确检测；当干扰程度很高时，停止向CPU上报触摸信息，避免CPU接收到错误的触摸信息后完成一些误操作。
需要说明的一点是，在上述步骤203之后，Touch IC还可以向电子设备的CPU上报触摸屏当前所处的操作模式，该CPU用于生成提示信息。提示信息用于提示触摸屏当前所处的操作模式，使得用户可以根据该提示信息了解到触摸屏当前所处的操作模式。同时，用户还可根据该提示信息了解到触摸屏表面是否存在导电液体，当存在导电液体影响用户正常的触摸操作时，用户可以对导电液体进行及时地清除。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图3是根据一示例性实施例示出的一种触摸屏控制装置的框图，该触摸屏控制装置可以通过软件、硬件或者两者的结合实现成为电子设备的部分或者全部。该触摸屏控制装置可以包括：电容获取模块310、级别确定模块320和模式控制模块330。
电容获取模块310，被配置为获取触摸屏上各个测试点的实际电容值。
级别确定模块320，被配置为根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值。
模式控制模块330，被配置为控制所述触摸屏处于与所述干扰级别对应的操作模式。
综上所述，本实施例提供的触摸屏控制装置，通过获取触摸屏上各个测试点的实际电容值，根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，并控制触摸屏处于与干扰级别对应的操作模式；解决了导电液体覆盖于电容式触摸屏表面时，电容式触摸屏的灵敏度和检测精度会受严重影响的问题；根据导电液体的干扰级别控制触摸屏处于与干扰级别对应的操作模式，可以在很大程度上减轻导电液体对触摸屏的影响，提高触摸屏的灵敏度和检测精度。
图4是根据另一示例性实施例示出的一种触摸屏控制装置的框图，该触摸屏控制装置可以通过软件、硬件或者两者的结合实现成为电子设备的部分或者全部。该触摸屏控制装置可以包括：电容获取模块310、级别确定模块320和模式控制模块330。
电容获取模块310，被配置为获取触摸屏上各个测试点的实际电容值。
级别确定模块320，被配置为根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值。
所述级别确定模块320，包括：条件检测单元320a、覆盖确定单元320b、范围确定单元320c和级别确定单元320d。
所述条件检测单元320a，被配置为对于每一个测试点，检测所述测试点是否满足预定条件，所述预定条件包括所述测试点的实际自电容值与基准自电容值相同，且所述测试点的实际互电容值与基准互电容值不同；其中，所述基准自电容值是指所述测试点无导电介质影响时的自电容值，所述基准互电容值是指所述测试点无导电介质影响时的互电容值。
所述覆盖确定单元320b，被配置为当所述测试点满足所述预定条件时，确定所述测试点表面有所述导电液体覆盖，根据所述实际互电容值与所述基准互电容值的差值确定所述导电液体的覆盖量，所述差值与所述覆盖量成正相关关系。
所述范围确定单元320c，被配置为根据每个测试点表面是否有所述导电液体覆盖以及所述导电液体的覆盖量确定所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量。
所述级别确定单元320d，被配置为根据所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量确定所述导电液体的干扰级别。
模式控制模块330，被配置为控制所述触摸屏处于与所述干扰级别对应的操作模式。
所述模式控制模块330，包括：模式选择单元330a和模式控制单元330b。
所述模式选择单元330a，被配置为从预定对应关系中选择与所述干扰级别对应的操作模式，所述预定对应关系包括各个干扰级别与各个操作模式之间的对应关系，所述操作模式包括全屏多指操作模式、多指和单指混合操作模式、全屏单指操作模式和全屏停止操作模式中的至少一种。
所述模式选择单元330a，包括：第一选择子单元330a1；或者，第二选择子单元330a2；或者，第三选择子单元330a3；或者，第四选择子单元330a4。
当所述干扰级别包括干扰程度依次递增的第一干扰级别、第二干扰级别、第三干扰级别以及第四干扰级别时，
所述第一选择子单元330a1，被配置为当所述导电液体的干扰级别为所述第一干扰级别时，从所述预定对应关系中选择所述全屏多指操作模式；
所述第二选择子单元330a2，被配置为当所述导电液体的干扰级别为所述第二干扰级别时，从所述预定对应关系中选择所述多指和单指混合操作模式；
所述第三选择子单元330a3，被配置为当所述导电液体的干扰级别为所述第三干扰级别时，从所述预定对应关系中选择所述全屏单指操作模式；
所述第四选择子单元330a4，被配置为当所述导电液体的干扰级别为所述第四干扰级别时，从所述预定对应关系中选择所述全屏停止操作模式。
所述模式控制单元330b，被配置为控制所述触摸屏处于被选择的所述操作模式。
可选的，所述装置还包括：多指控制模块331、位置获取模块332、位置检测模块333、模式切换模块334和位置跟踪模块335。
多指控制模块331，被配置为当所述触摸屏处于所述多指和单指混合操作模式时，控制所述触摸屏处于多指操作模式。
位置获取模块332，被配置为通过互电容扫描方式获取至少一个手指所对应的触摸位置。
位置检测模块333，被配置为检测是否存在任一触摸位置进入导电液体范围，所述导电液体范围是根据所述导电液体在所述触摸屏表面的实际覆盖范围确定的，且所述导电液体范围的面积大于所述实际覆盖范围的面积。
模式切换模块334，被配置为当存在任一触摸位置进入所述导电液体范围时，控制所述触摸屏从所述多指操作模式切换至单指操作模式。
位置跟踪模块335，被配置为通过自电容扫描方式继续获取进入所述导电液体范围的触摸位置所对应的至少一个关联触摸位置。
可选的，所述装置还包括：模式上报模块336。
模式上报模块336，被配置为向中央处理器CPU上报所述触摸屏当前所处的操作模式，所述CPU用于生成提示信息，所述提示信息用于提示所述触摸屏当前所处的操作模式。
综上所述，本实施例提供的触摸屏控制装置，通过获取触摸屏上各个测试点的实际电容值，根据实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，并控制触摸屏处于与干扰级别对应的操作模式；解决了导电液体覆盖于电容式触摸屏表面时，电容式触摸屏的灵敏度和检测精度会受严重影响的问题；根据导电液体的干扰级别控制触摸屏处于与干扰级别对应的操作模式，可以在很大程度上减轻导电液体对触摸屏的影响，提高触摸屏的灵敏度和检测精度。
另外，本实施例提供的触摸屏控制装置，根据导电液体的干扰程度的不同，将导电液体划分为若干个干扰级别，并针对不同的干扰级别提供了不同的控制策略，最大程度地减轻了导电液体对触摸屏的影响。当干扰程度较低时，可以确保对用户多指触摸的正常检测；当干扰程度较高时，优先保证对诸如点击、滑动等单指操作的准确检测；当干扰程度很高时，停止向CPU上报触摸信息，避免CPU接收到错误的触摸信息后完成一些误操作。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图5是根据一示例性实施例示出的一种用于触摸屏控制的装置500的框图。例如，装置500可以是触摸芯片Touch IC。
参照图5，装置500可以包括以下一个或多个组件：处理组件502和存储器504。
处理组件502通常控制装置500的整体操作，诸如获取电子设备的触摸屏上各个测试点的电容值、控制触摸屏所处的操作模式、向电子设备的CPU上报信息等等。处理组件502可以包括一个或多个处理器520来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件502可以包括一个或多个模块，便于处理组件502和其他组件之间的交互。
存储器504被配置为存储各种类型的数据以支持在装置500的操作。这些数据的示例包括用于在装置500上操作的任何应用程序或方法的指令。存储器504可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
在示例性实施例中，装置500可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述图1或者图2所示的触摸屏控制方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器504，上述指令可由装置500的处理器520执行以完成上述图1或者图2所示的触摸屏控制方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
一种非临时性计算机可读存储介质，当所述存储介质中的指令由装置500的处理器执行时，使得装置500能够执行上述图1或者图2所示的触摸屏控制方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (13)

  1. 一种触摸屏控制方法，其特征在于，所述方法包括：
    获取触摸屏上各个测试点的实际电容值；
    根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值；
    控制所述触摸屏处于与所述干扰级别对应的操作模式。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，包括：
    对于每一个测试点，检测所述测试点是否满足预定条件，所述预定条件包括所述测试点的实际自电容值与基准自电容值相同，且所述测试点的实际互电容值与基准互电容值不同；其中，所述基准自电容值是指所述测试点无导电介质影响时的自电容值，所述基准互电容值是指所述测试点无导电介质影响时的互电容值；
    若所述测试点满足所述预定条件，则确定所述测试点表面有所述导电液体覆盖，根据所述实际互电容值与所述基准互电容值的差值确定所述导电液体的覆盖量，所述差值与所述覆盖量成正相关关系；
    根据每个测试点表面是否有所述导电液体覆盖以及所述导电液体的覆盖量确定所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量；
    根据所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量确定所述导电液体的干扰级别。
  3. 根据权利要求1所述的方法，其特征在于，所述控制所述触摸屏处于与所述干扰级别对应的操作模式，包括：
    从预定对应关系中选择与所述干扰级别对应的操作模式，所述预定对应关系包括各个干扰级别与各个操作模式之间的对应关系，所述操作模式包括全屏多指操作模式、多指和单指混合操作模式、全屏单指操作模式和全屏停止操作模式中的至少一种；
    控制所述触摸屏处于被选择的所述操作模式。
  4. 根据权利要求3所述的方法，其特征在于，所述从预定对应关系中选择与所述干扰级别对应的操作模式，包括：
    当所述干扰级别包括干扰程度依次递增的第一干扰级别、第二干扰级别、第三干扰级别以及第四干扰级别时，若所述导电液体的干扰级别为所述第一干扰级别，则从所述预定对应关系中选择所述全屏多指操作模式；或者，
    若所述导电液体的干扰级别为所述第二干扰级别，则从所述预定对应关系中选择所述多指和单指混合操作模式；或者，
    若所述导电液体的干扰级别为所述第三干扰级别，则从所述预定对应关系中选择所述全屏单指操作模式；或者，
    若所述导电液体的干扰级别为所述第四干扰级别，则从所述预定对应关系中选择所述 全屏停止操作模式。
  5. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    当所述触摸屏处于所述多指和单指混合操作模式时，控制所述触摸屏处于多指操作模式；
    通过互电容扫描方式获取至少一个手指所对应的触摸位置；
    检测是否存在任一触摸位置进入导电液体范围，所述导电液体范围是根据所述导电液体在所述触摸屏表面的实际覆盖范围确定的，且所述导电液体范围的面积大于所述实际覆盖范围的面积；
    若存在任一触摸位置进入所述导电液体范围，则控制所述触摸屏从所述多指操作模式切换至单指操作模式；
    通过自电容扫描方式继续获取进入所述导电液体范围的触摸位置所对应的至少一个关联触摸位置。
  6. 根据权利要求1至5任一所述的方法，其特征在于，所述方法还包括：
    向电子设备的中央处理器CPU上报所述触摸屏当前所处的操作模式，所述CPU用于生成提示信息，所述提示信息用于提示所述触摸屏当前所处的操作模式。
  7. 一种触摸屏控制装置，其特征在于，所述装置包括：
    电容获取模块，被配置为获取触摸屏上各个测试点的实际电容值；
    级别确定模块，被配置为根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值；
    模式控制模块，被配置为控制所述触摸屏处于与所述干扰级别对应的操作模式。
  8. 根据权利要求7所述的装置，其特征在于，所述级别确定模块，包括：条件检测单元、覆盖确定单元、范围确定单元和级别确定单元；
    所述条件检测单元，被配置为对于每一个测试点，检测所述测试点是否满足预定条件，所述预定条件包括所述测试点的实际自电容值与基准自电容值相同，且所述测试点的实际互电容值与基准互电容值不同；其中，所述基准自电容值是指所述测试点无导电介质影响时的自电容值，所述基准互电容值是指所述测试点无导电介质影响时的互电容值；
    所述覆盖确定单元，被配置为当所述测试点满足所述预定条件时，确定所述测试点表面有所述导电液体覆盖，根据所述实际互电容值与所述基准互电容值的差值确定所述导电液体的覆盖量，所述差值与所述覆盖量成正相关关系；
    所述范围确定单元，被配置为根据每个测试点表面是否有所述导电液体覆盖以及所述导电液体的覆盖量确定所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量；
    所述级别确定单元，被配置为根据所述导电液体在所述触摸屏表面的实际覆盖范围和覆盖量确定所述导电液体的干扰级别。
  9. 根据权利要求7所述的装置，其特征在于，所述模式控制模块，包括：模式选择单元和模式控制单元；
    所述模式选择单元，被配置为从预定对应关系中选择与所述干扰级别对应的操作模式，所述预定对应关系包括各个干扰级别与各个操作模式之间的对应关系，所述操作模式包括全屏多指操作模式、多指和单指混合操作模式、全屏单指操作模式和全屏停止操作模式中的至少一种；
    所述模式控制单元，被配置为控制所述触摸屏处于被选择的所述操作模式。
  10. 根据权利要求9所述的装置，其特征在于，所述模式选择单元，包括：第一选择子单元；或者，第二选择子单元；或者，第三选择子单元；或者，第四选择子单元；
    当所述干扰级别包括干扰程度依次递增的第一干扰级别、第二干扰级别、第三干扰级别以及第四干扰级别时，
    所述第一选择子单元，被配置为当所述导电液体的干扰级别为所述第一干扰级别时，从所述预定对应关系中选择所述全屏多指操作模式；
    所述第二选择子单元，被配置为当所述导电液体的干扰级别为所述第二干扰级别时，从所述预定对应关系中选择所述多指和单指混合操作模式；
    所述第三选择子单元，被配置为当所述导电液体的干扰级别为所述第三干扰级别时，从所述预定对应关系中选择所述全屏单指操作模式；
    所述第四选择子单元，被配置为当所述导电液体的干扰级别为所述第四干扰级别时，从所述预定对应关系中选择所述全屏停止操作模式。
  11. 根据权利要求9所述的装置，其特征在于，所述装置还包括：
    多指控制模块，被配置为当所述触摸屏处于所述多指和单指混合操作模式时，控制所述触摸屏处于多指操作模式；
    位置获取模块，被配置为通过互电容扫描方式获取至少一个手指所对应的触摸位置；
    位置检测模块，被配置为检测是否存在任一触摸位置进入导电液体范围，所述导电液体范围是根据所述导电液体在所述触摸屏表面的实际覆盖范围确定的，且所述导电液体范围的面积大于所述实际覆盖范围的面积；
    模式切换模块，被配置为当存在任一触摸位置进入所述导电液体范围时，控制所述触摸屏从所述多指操作模式切换至单指操作模式；
    位置跟踪模块，被配置为通过自电容扫描方式继续获取进入所述导电液体范围的触摸位置所对应的至少一个关联触摸位置。
  12. 根据权利要求7至11任一所述的装置，其特征在于，所述装置还包括：
    模式上报模块，被配置为向电子设备的中央处理器CPU上报所述触摸屏当前所处的操作模式，所述CPU用于生成提示信息，所述提示信息用于提示所述触摸屏当前所处的操作模式。
  13. 一种触摸屏控制装置，其特征在于，包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    获取触摸屏上各个测试点的实际电容值；
    根据所述实际电容值相对于基准电容值的变化情况确定导电液体的干扰级别，所述基准电容值是指所述测试点无导电介质影响时的电容值；
    控制所述触摸屏处于与所述干扰级别对应的操作模式。
PCT/CN2014/089256 2014-05-30 2014-10-23 触摸屏控制方法和装置 Ceased WO2015180387A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
MX2014015466A MX349778B (es) 2014-05-30 2014-10-23 Metodo y dispositivo de control de pantalla tactil.
BR112015000277-3A BR112015000277B1 (pt) 2014-05-30 2014-10-23 Método e dispositivo de controle de tela sensível ao toque
RU2014154249A RU2608463C2 (ru) 2014-05-30 2014-10-23 Способ и устройство управления сенсорным экраном
KR1020147035913A KR101785144B1 (ko) 2014-05-30 2014-10-23 터치 스크린의 제어 방법, 장치, 프로그램 및 저장매체
JP2016522259A JP6046315B2 (ja) 2014-05-30 2014-10-23 タッチスクリーンの制御方法、装置、プログラム、及び記録媒体
US14/585,687 US9785295B2 (en) 2014-05-30 2014-12-30 Touch screen control method and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410238770.X 2014-05-30
CN201410238770.XA CN104063101B (zh) 2014-05-30 2014-05-30 触摸屏控制方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/585,687 Continuation US9785295B2 (en) 2014-05-30 2014-12-30 Touch screen control method and device

Publications (1)

Publication Number Publication Date
WO2015180387A1 true WO2015180387A1 (zh) 2015-12-03

Family

ID=51550842

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/089256 Ceased WO2015180387A1 (zh) 2014-05-30 2014-10-23 触摸屏控制方法和装置

Country Status (9)

Country Link
US (1) US9785295B2 (zh)
EP (1) EP2950191B1 (zh)
JP (1) JP6046315B2 (zh)
KR (1) KR101785144B1 (zh)
CN (1) CN104063101B (zh)
BR (1) BR112015000277B1 (zh)
MX (1) MX349778B (zh)
RU (1) RU2608463C2 (zh)
WO (1) WO2015180387A1 (zh)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090174676A1 (en) 2008-01-04 2009-07-09 Apple Inc. Motion component dominance factors for motion locking of touch sensor data
WO2015178920A1 (en) 2014-05-22 2015-11-26 Onamp Research Llc Panel bootstrapping architectures for in-cell self-capacitance
CN104063101B (zh) 2014-05-30 2016-08-24 小米科技有限责任公司 触摸屏控制方法和装置
CN107077260B (zh) 2014-09-22 2020-05-12 苹果公司 触摸控制器和用于触摸传感器面板的方法
US10712867B2 (en) 2014-10-27 2020-07-14 Apple Inc. Pixelated self-capacitance water rejection
AU2016215616B2 (en) 2015-02-02 2018-12-06 Apple Inc. Flexible self-capacitance and mutual capacitance touch sensing system architecture
CN105988781B (zh) * 2015-02-03 2020-05-15 敦泰电子有限公司 电子设备、应用程序调用方法及调用装置
US10488992B2 (en) 2015-03-10 2019-11-26 Apple Inc. Multi-chip touch architecture for scalability
CN105224153A (zh) * 2015-08-31 2016-01-06 京东方科技集团股份有限公司 触控电极的电学性能检测装置和检测方法
JP6739193B2 (ja) * 2016-03-14 2020-08-12 三菱電機株式会社 タッチパネル
CN106354261B (zh) * 2016-09-05 2019-07-09 广东小天才科技有限公司 一种移动设备输入方式的切换方法及装置、移动设备
US10401984B2 (en) 2016-12-14 2019-09-03 Texas Instruments Incorporated User interface mechanical control apparatus with optical and capacitive position detection and optical position indication
US10288658B2 (en) * 2017-02-02 2019-05-14 Texas Instruments Incorporated Enhancing sensitivity and robustness of mechanical rotation and position detection with capacitive sensors
WO2018157268A1 (zh) * 2017-02-28 2018-09-07 深圳市汇顶科技股份有限公司 触摸检测的方法和装置
US10642418B2 (en) * 2017-04-20 2020-05-05 Apple Inc. Finger tracking in wet environment
CN109716273B (zh) * 2017-07-18 2022-03-18 深圳市汇顶科技股份有限公司 一种触摸屏湿水状态下手指的定位方法、装置及触控检测装置
EP3457264A4 (en) 2017-07-20 2019-05-22 Shenzhen Goodix Technology Co., Ltd. METHOD FOR DETECTING A TOUCH POINT AND TOUCH CONTROL DEVICE
US10684731B2 (en) 2017-08-03 2020-06-16 Himax Technologies Limited Touch apparatus and sensing method and touch sensing circuit thereof
TWI630523B (zh) * 2017-08-15 2018-07-21 奇景光電股份有限公司 觸控裝置及其感測方法與觸控感測電路
CN108092657B (zh) * 2018-01-04 2021-09-03 无锡市瀚为科技有限公司 一种触摸电极结构化的电容式触摸开关及其触发方法
WO2019160173A1 (ko) * 2018-02-14 2019-08-22 엘지전자 주식회사 이동 단말기 및 그 제어방법
US10983642B2 (en) * 2018-07-30 2021-04-20 Texas Instruments Incorporated Using driven shield and touch elements lock algorithm for achieving liquid tolerant capacitive touch solution
CN108983010B (zh) * 2018-09-19 2024-06-11 昆山迈致治具科技有限公司 一种触摸屏测试机
CN109655921B (zh) * 2018-11-30 2021-03-16 歌尔股份有限公司 一种电子设备及其入水检测方法
CN109710109B (zh) * 2018-12-28 2023-06-09 Oppo广东移动通信有限公司 控制方法、控制装置、电子装置和存储介质
CN109614016B (zh) * 2019-01-11 2022-05-03 中国联合网络通信集团有限公司 电容触摸屏的触摸识别方法、装置及电子设备
JP2022051971A (ja) 2019-02-05 2022-04-04 ソニーグループ株式会社 情報処理装置、情報処理方法、及び、プログラム
TWI716098B (zh) * 2019-05-21 2021-01-11 仁寶電腦工業股份有限公司 切換觸控板操作模式的方法
US11157109B1 (en) 2019-09-06 2021-10-26 Apple Inc. Touch sensing with water rejection
CN111459346B (zh) 2020-03-31 2021-09-07 深圳市汇顶科技股份有限公司 电容式触控装置及其手势识别方法、芯片和存储介质
US11662867B1 (en) 2020-05-30 2023-05-30 Apple Inc. Hover detection on a touch sensor panel
CN112684265B (zh) * 2020-12-11 2022-12-27 中微半导体(深圳)股份有限公司 一种应用于触摸的干扰检测系统及方法
CN113377236B (zh) * 2021-06-30 2022-08-02 武汉华星光电技术有限公司 触控信号的抗干扰方法及装置
CN114327136B (zh) * 2021-12-22 2026-01-23 努比亚技术有限公司 一种电容触摸控制方法、设备及计算机可读存储介质
US11720205B2 (en) * 2021-12-27 2023-08-08 Stmicroelectronics Ltd. Touch report rate of touchscreen
CN115756198A (zh) * 2022-11-18 2023-03-07 北京小米移动软件有限公司 湿手触控识别方法、装置、电子设备及介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221946A (zh) * 2011-03-25 2011-10-19 苏州瀚瑞微电子有限公司 电容式触控面板防水识别的方法
JP2013125496A (ja) * 2011-12-16 2013-06-24 Mitsubishi Electric Corp タッチパネルおよび表示装置
TW201329824A (zh) * 2012-01-06 2013-07-16 Egalax Empia Technology Inc 薄型電容式觸摸屏
CN103562829A (zh) * 2011-03-29 2014-02-05 辛纳普蒂克斯公司 电容触摸屏干扰检测和操作
CN104063101A (zh) * 2014-05-30 2014-09-24 小米科技有限责任公司 触摸屏控制方法和装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0302711L (sv) * 2003-10-13 2005-03-22 Anders Swedin Beröringskänslig bildskärmsenhet, samt metod för avkänning av en beröring på bildskärmsenheten
US8564544B2 (en) 2006-09-06 2013-10-22 Apple Inc. Touch screen device, method, and graphical user interface for customizing display of content category icons
JP5601553B2 (ja) * 2008-07-17 2014-10-08 Ｎｌｔテクノロジー株式会社 表示装置及び表示装置の駆動方法
CN102043552B (zh) * 2009-10-09 2016-04-20 禾瑞亚科技股份有限公司 电容式位置侦测的方法与装置
CN101840293B (zh) 2010-01-21 2012-03-21 宸鸿科技(厦门)有限公司 投射电容式触控面板的扫描方法
US8482546B2 (en) * 2010-06-30 2013-07-09 Cypress Semiconductor Corporation Self shielding capacitance sensing panel
JP5678631B2 (ja) * 2010-12-10 2015-03-04 ソニー株式会社 電子機器、電子機器の制御方法およびプログラム
US20140111430A1 (en) * 2011-06-10 2014-04-24 Nec Casio Mobile Communications, Ltd. Input device and control method of touch panel
TWI533166B (zh) 2011-09-22 2016-05-11 義隆電子股份有限公司 觸控物件識別方法
CN103049151B (zh) * 2011-10-14 2017-12-12 禾瑞亚科技股份有限公司 触摸屏的侦测装置与方法
TWI455005B (zh) * 2012-01-09 2014-10-01 Elan Microelectronics Corp 觸控面板的雜訊排除方法
US8823678B2 (en) * 2012-01-09 2014-09-02 Broadcom Corporation Waterproof baseline tracking in capacitive touch controllers
CN103324430B (zh) 2012-03-19 2017-06-30 宏达国际电子股份有限公司 多手指的物件操作方法及装置
US9285980B2 (en) 2012-03-19 2016-03-15 Htc Corporation Method, apparatus and computer program product for operating items with multiple fingers
JP2013222283A (ja) * 2012-04-16 2013-10-28 Sharp Corp 電子機器、その制御方法およびその制御プログラム
KR20130119045A (ko) * 2012-04-23 2013-10-31 삼성전자주식회사 터치 패널 및 그의 제조 방법
US8976146B2 (en) 2012-04-23 2015-03-10 Silicon Integrated Systems Corp. Method of reducing computation of water tolerance by projecting touch data
CN102968235B (zh) 2012-11-27 2015-12-02 深圳市汇顶科技股份有限公司 触摸传感器的触摸检测方法、系统和触控终端
CN103366138B (zh) * 2013-01-31 2016-03-30 广东欧珀移动通信有限公司 移动终端接触液体自动掉电保护的方法及移动终端
CN103324373B (zh) * 2013-06-14 2016-04-06 广东欧珀移动通信有限公司 一种防止导电液体引起触摸屏误动作的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221946A (zh) * 2011-03-25 2011-10-19 苏州瀚瑞微电子有限公司 电容式触控面板防水识别的方法
CN103562829A (zh) * 2011-03-29 2014-02-05 辛纳普蒂克斯公司 电容触摸屏干扰检测和操作
JP2013125496A (ja) * 2011-12-16 2013-06-24 Mitsubishi Electric Corp タッチパネルおよび表示装置
TW201329824A (zh) * 2012-01-06 2013-07-16 Egalax Empia Technology Inc 薄型電容式觸摸屏
CN104063101A (zh) * 2014-05-30 2014-09-24 小米科技有限责任公司 触摸屏控制方法和装置

Also Published As

Publication number Publication date
US9785295B2 (en) 2017-10-10
JP2016522525A (ja) 2016-07-28
MX349778B (es) 2017-08-10
JP6046315B2 (ja) 2016-12-14
RU2608463C2 (ru) 2017-01-18
MX2014015466A (es) 2016-04-26
EP2950191A1 (en) 2015-12-02
CN104063101B (zh) 2016-08-24
EP2950191B1 (en) 2019-01-30
BR112015000277B1 (pt) 2021-11-03
CN104063101A (zh) 2014-09-24
KR20160001592A (ko) 2016-01-06
RU2014154249A (ru) 2016-07-20
US20150346864A1 (en) 2015-12-03
KR101785144B1 (ko) 2017-11-06
BR112015000277A2 (pt) 2017-06-27

Similar Documents

Publication Publication Date Title
WO2015180387A1 (zh) 触摸屏控制方法和装置
JP2016522525A5 (zh)
US9569045B2 (en) Stylus tilt and orientation estimation from touch sensor panel images
CN101957694B (zh) 忽视手掌触压的触控装置与方法
US8368667B2 (en) Method for reducing latency when using multi-touch gesture on touchpad
KR101521337B1 (ko) 재배치가능한 터치면 상의 제스처 방위의 검출
US20120182225A1 (en) Detection of Predetermined Objects with Capacitive Touchscreens or Touch Panels
US9235287B2 (en) Touch panel apparatus and touch panel detection method
US8773390B1 (en) Biometric identification devices, methods and systems having touch surfaces
US9690417B2 (en) Glove touch detection
CN105353927B (zh) 电容式触控装置及其物体辨识方法
KR101071165B1 (ko) 터치입력 인식방법 및 장치
CN104808936A (zh) 界面操作方法与应用该方法的便携式电子装置
CN104881174A (zh) 一种动态调整触摸屏灵敏度的方法及装置
EP3652625A1 (en) Method for touch detection enhancement based on identifying a cover film on a touch-screen
US20140267052A1 (en) Palm Check of a Touchpad
CN106155437B (zh) 操作模式判断方法、触碰点位置判断方法以及触控控制电路
CN105630257A (zh) 触控装置及触控方法
CN105549773B (zh) 水下触控侦测系统及水下触控侦测方法
US20150153871A1 (en) Touch-sensitive device and method
CN113885730A (zh) 一种防误触方法及装置
US9417752B2 (en) Pattern adjusting method for touch sensor and electronic device
TWI605364B (zh) 觸控裝置及其觸控模式切換方法
CN105955656B (zh) 触摸屏幕的控制方法和触摸设备
CN107340902A (zh) 一种可触摸控件移动方法及装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: MX/A/2014/015466

Country of ref document: MX

ENP Entry into the national phase

Ref document number: 2016522259

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20147035913

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2014154249

Country of ref document: RU

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14893117

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112015000277

Country of ref document: BR

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14893117

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 112015000277

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20150107