CN110337629A - The detection method of the environment temperature of touch detection circuit, electronic equipment and touch screen - Google Patents
The detection method of the environment temperature of touch detection circuit, electronic equipment and touch screen Download PDFInfo
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- CN110337629A CN110337629A CN201780000620.7A CN201780000620A CN110337629A CN 110337629 A CN110337629 A CN 110337629A CN 201780000620 A CN201780000620 A CN 201780000620A CN 110337629 A CN110337629 A CN 110337629A
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Abstract
A kind of detection method of the environment temperature of touch detection circuit, electronic equipment and touch screen.The detection method of the environment temperature of touch screen, comprising: obtain touch screen under the present circumstances and the raw sensor data (101) under non-touch condition；The current characteristic value (102) of the touch screen is calculated according to the raw sensor data；According to the default corresponding relationship of characteristic value and temperature, the current corresponding environment temperature of the characteristic value (103) is obtained.Using the detection method of the environment temperature of above-mentioned touch screen, the environment temperature that touch screen is presently in can be obtained, provides basis for targetedly temperature drift compensation and temperature drift correction.
Description
This application involves touch screen technology field, in particular to a kind of touch detection circuit, electronic equipment and touch screen environment temperature detection method.
Currently, it is the capacitive touch screen used that most electronic equipment (for example, mobile phone, tablet computer etc.), which realizes human-computer interaction all, in the market, capacitive touch screen detects the touch operation of user by capacitance sensor.Before the user's operation on detection touch screen, touch screen can generally establish a benchmark original value, and original value is obtained by the sampling of touch control chip stamp, which reflects the original state of each sense node of capacitance sensor.When touching object (for example, objects of other changeable induced electricity capacity such as finger, stylus) is clicked on the touchscreen, the capacitance of corresponding position sense node can be changed when the operation such as scribing line, the original value obtained at this time is current original value, subtracting current original value using benchmark original value can be obtained difference, the difference can reflect touching object capacitance change caused by operating position, can be calculated according to difference and report touch-control coordinate.
Inventor has found that at least there are the following problems for the prior art during realizing the application: when temperature increases or declines, since capacitance sensor has temperature drift characteristic, corresponding change can also occur for the original value of capacitive touch screen；Therefore, if temperature difference when temperature and detection user's touch operation when touch screen establishes benchmark original value is larger, the difference that then will lead to current original value and benchmark original value not only includes capacitance change caused by touching object, also comprising capacitance change caused by temperature drift；If being calculated with the difference and reporting touch-control coordinate, it will the influence user's operations such as point, Mao Dian, coordinate calculating inaccuracy that disappear occur
The problem of experience；Wherein, disappear and a little refer to that touching object operates on the touchscreen and touch control chip does not report coordinate, emit and a little refer to that touching object does not operate on the touchscreen and touch control chip reports coordinate.
Summary of the invention
A kind of detection method of the environment temperature for being designed to provide touch detection circuit, electronic equipment and touch screen of the application section Example, first obtain the characteristic value of touch screen under current environment, so as to obtain the environment temperature that touch screen is presently according to the corresponding relationship of characteristic value and temperature, basis is provided for targetedly temperature drift compensation and temperature drift correction.
One embodiment of the application provides a kind of detection method of the environment temperature of touch screen, comprising: obtains touch screen under the present circumstances and the raw sensor data under non-touch condition；The current characteristic value of touch screen is calculated according to raw sensor data；According to the default corresponding relationship of characteristic value and temperature, the corresponding environment temperature of current characteristic value is obtained.
The embodiment of the present application also provides a kind of touch detection circuits, and applied to above-mentioned detection method, touch detection circuit includes: processor, memory and touch screen；Processor is connected to touch screen and memory；Memory is used for the default corresponding relationship of preservative feature value and temperature；Touch screen is used to obtain touch screen under the present circumstances and the raw sensor data under non-touch condition；Processor is used to calculate the current characteristic value of touch screen according to raw sensor data, and according to the default corresponding relationship of characteristic value and temperature, obtains the corresponding environment temperature of current characteristic value.
The embodiment of the present application also provides a kind of electronic equipment, comprising: above-mentioned touch detection circuit.
The application in terms of existing technologies, obtains the characteristic value of touch screen under current environment, and obtain the environment temperature that touch screen is presently according to the default corresponding relationship of characteristic value and temperature, so as to provide basis for targetedly temperature drift compensation and temperature drift correction.
In addition, the default corresponding relationship of characteristic value and temperature is indicated with functional relation.Present embodiments provide a kind of representation of the default corresponding relationship of characteristic value and temperature.
In addition, functional relation is according to the raw sensor data acquired at a temperature of consecutive variations within a preset range in advance, and pass through fit approach acquisition.It present embodiments provides when the default corresponding relationship of characteristic value and temperature is in a manner of temperature change when functional relation indicates, consecutive variations can recorde temperature as much as possible and combine with the data of characteristic value temperature within a preset range, so as to improve the accuracy of curve matching, to obtain more accurate functional relation.
In addition, characteristic value is indicated with the default corresponding relationship of temperature with compareing sheet form.Present embodiments provide the representation of the default corresponding relationship of another characteristic value and temperature.
In addition, the table of comparisons is obtained according to the raw sensor data acquired at a temperature of preparatory interval variation within a preset range.It present embodiments provides when characteristic value with the default corresponding relationship of temperature in a manner of temperature change when compareing sheet form and indicating, temperature changes for temperature consecutive variations at equal intervals within a preset range, the temperature that record can be reduced in the controllable range of error is combined with the data of characteristic value, to save experimental period, the table of comparisons is quickly established.
In addition, the influence value of all sense nodes of whole touch areas in raw sensor data including the touch screen, or the influence value including each sense node in partial touch region.Present embodiments provide the specific method for obtaining characteristic value.
In addition, characteristic value is the average value or intermediate value of each influence value.In the present embodiment, take the influence value of each sense node average value or intermediate value as characteristic value have preferable stability.
In addition, the default corresponding relationship of characteristic value and temperature establishes mode, specifically include: when the temperature in an incubator changes within a preset range, record is located at the raw sensor data of touch screen at each temperature in incubator；According to the raw sensor data of touch screen at each temperature, the feature of touch screen at each temperature is calculated
Value；According to the characteristic value of touch screen at each temperature, the default corresponding relationship of characteristic value and temperature is established.Present embodiments provide the default corresponding relationship of characteristic value and temperature specifically establishes mode.
In addition, processor and memory are integrated in a touch control chip in touch detection circuit.
In addition, in the electronic device, touch screen is capacitance touch screen.
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary illustrations do not constitute the restriction to embodiment, element in attached drawing with same reference numbers label is expressed as similar element, unless there are special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the specific flow chart according to the detection method of the environment temperature of the touch screen of the application first embodiment；
Fig. 2 is the schematic diagram according to the capacitance touch screen of the application first embodiment；
Fig. 3 is the specific flow chart according to the detection method of the environment temperature of the touch screen of the application second embodiment；
Fig. 4 is the scatter plot of the characteristic value and temperature according to the touch screen of the application second embodiment；
Fig. 5 is the curve matching figure of the characteristic value and temperature according to the touch screen of the application second embodiment；
Fig. 6 is the block diagram according to the touch detection circuit of the application 3rd embodiment.
In order to which the objects, technical solutions and advantages of the application are more clearly understood, with reference to the accompanying drawings and embodiments, the application section Example is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, it is not used to limit the application.
The application first embodiment is related to a kind of detection method of the environment temperature of touch screen, and applied to the electronic equipment (for example, mobile phone, tablet computer etc.) for having touch screen, the touch screen in the present embodiment is capacitance touch screen, so without being limited thereto.The specific flow chart of the detection method of the environment temperature of touch screen please refers to Fig. 1.
In the present embodiment, referring to FIG. 2, capacitance touch screen generally comprises touch panel and touch detection circuit, touch detection circuit includes processor and memory, processor and memory can be integrated in same touch detection chip, and right the present embodiment does not do any restrictions to this；Touch panel is the capacitance sensor formed on substrate, and capacitance sensor is generally made of driving electrodes and induction electrode, and in typical mutual capacitance type touch screen, the position of each driving electrodes and induction electrode intersection forms a sense node；In Fig. 2 by taking 5 driving electrodes and 5 induction electrodes as an example, 25 sense nodes are formd.
Step 101, the raw sensor data for obtaining touch screen under the present circumstances and being under non-touch condition.
Specifically, capacitance touch screen is obtained under current environment by capacitance sensor and the raw sensor data under non-touch condition, please refer to Fig. 2, the stamp signal of certain frequency is inputted driving electrodes according to certain driving method by touch detection circuit, stamp signal makes induction electrode generate corresponding inductive signal by being formed by capacitance sensor at sense node, inductive signal is detected through touch detection circuit, and the influence value of each mutual capacitance sense node can be obtained after its internal ADC conversion and Digital Signal Processing；Wherein, the influence value of all sense nodes of whole touch areas in raw sensor data including touch screen, or the influence value including each sense node in partial touch region, i.e., touch screen includes a touch area, raw sensor data can be the influence value for all sense nodes for including in entire touch area in the influence value for all sense nodes for including or in which a part of touch area.Here touch area refers to tangible region, is not necessarily referring to the practical touch area of finger.
Step 102, the current characteristic value of touch screen is calculated according to raw sensor data.
Specifically, touch detection circuit calculates the current characteristic value of touch screen according to the influence value of each sense node of the touch area of acquisition.
It should be noted that using the average value of the influence value of each sense node of touch area as characteristic value in the present embodiment, it is so without being limited thereto, it can also be using the original value of some sense node as characteristic value；Or the maximum value or minimum value or intermediate value of the influence value for all sense nodes in a part of touch area including are as characteristic value；Or the maximum value or minimum value or intermediate value of the influence value of all sense nodes on entire touch area are as characteristic value；Wherein, there is preferable stability relative to other several methods using the average value of the influence value of each sense node of the touch area of the touch screen of acquisition or intermediate value as characteristic value.
Step 103, according to the default corresponding relationship of characteristic value and temperature, the corresponding environment temperature of current characteristic value is obtained.
Specifically, default corresponding relationship of the touch detection circuit according to characteristic value and temperature, the corresponding environment temperature of available current characteristic value.Wherein, the default corresponding relationship of characteristic value and temperature can be indicated by functional relation, or control sheet form indicates, however the present embodiment is not intended to be limited in any this.
The present embodiment is in terms of existing technologies, obtain the characteristic value of touch screen under current environment, and the environment temperature that touch screen is presently in is obtained according to the default corresponding relationship of characteristic value and temperature, so as to provide basis for targetedly temperature drift compensation and temperature drift correction.
The application second embodiment is related to a kind of detection method of the environment temperature of touch screen, and the present embodiment is the refinement to first embodiment, and main refinement place is: the mode of establishing of the default corresponding relationship of characteristic value and temperature is specifically introduced.
The detailed process for establishing mode of the default corresponding relationship of characteristic value and temperature is as shown in Figure 3 in the present embodiment；
There are two types of the representations of the default corresponding relationship of characteristic value and temperature, respectively with functional relation
It indicates and is indicated with compareing sheet form, is introduced separately below.
The default corresponding relationship of characteristic value and temperature is indicated with functional relation, please refers to Fig. 3:
Step 201, when the temperature in an incubator changes within a preset range, record is located at the raw sensor data of touch screen at each temperature in incubator.
Specifically, electronic equipment with touch screen is put into incubator, temperature in incubator can change within a preset range, the specific variation pattern of temperature can be consecutive variations within a preset range, it is so without being limited thereto, it can also be and change at equal intervals within a preset range, the present embodiment is not intended to be limited in any this.Default corresponding relationship is indicated with functional relation due to being, and functional relation is and to pass through what fit approach obtained according to the raw sensor data acquired at a temperature of consecutive variations within a preset range in advance.Therefore, the specific variation pattern of the temperature in incubator is the temperature consecutive variations within a preset range in incubator, so without being limited thereto；Temperature can recorde temperature as much as possible in preset range consecutive variations and combine with the data of characteristic value, so as to improve the accuracy of curve matching, to obtain more accurate functional relation.Temperature is while successive range consecutive variations, the processor record of touch detection circuit is located at the raw sensor data of touch screen at each temperature in incubator, i.e., record the influence value of all sense nodes of whole touch areas of touch screen or the influence value of each sense node in partial touch region.
In the present embodiment, the preset range of warm the temperature inside the box is [- 20,60], however the present embodiment is not intended to be limited in any this, and the preset range can be set according to the use temperature range of electronic equipment.
Step 202, the raw sensor data according to touch screen at each temperature calculates the characteristic value of touch screen at each temperature.
Specifically, influence value by obtaining each sense node of the touch area of touch screen at each temperature calculates the characteristic value of touch screen at each temperature, referring to FIG. 4, when changing within the scope of -20 DEG C to 60 DEG C for warm the temperature inside the box, the scatter plot of the touch screen characteristic value of electronic equipment.
Step 203, the characteristic value according to touch screen at each temperature establishes the default corresponding relationship of characteristic value and temperature.
Specifically, the functional relation y=f (x) of temperature and characteristic value can be obtained by way of curve matching, wherein independent variable x is temperature, dependent variable y is the characteristic value of touch screen, and the environment temperature that touch screen is presently in can be calculated by bringing the characteristic value of touch screen into the function.Referring to FIG. 5, the matched curve realized for the present embodiment.
It should be noted that curve matching can also use piecewise fitting using global fitting；It can be linear fit and be also possible to nonlinear fitting；The curve matching mode used in this implementation is not intended to be limited in any this for global nonlinear fitting, right the present embodiment.
Characteristic value is indicated with the default corresponding relationship of temperature with compareing sheet form, please refers to Fig. 3:
Step 201, when the temperature in an incubator changes within a preset range, record is located at the raw sensor data of touch screen at each temperature in incubator.
Specifically, the electronic equipment with touch screen is put into incubator, the temperature in incubator changes within a preset range；Default corresponding relationship is indicated due to being to compare sheet form, and the table of comparisons is obtained according to the raw sensor data acquired at a temperature of preparatory interval variation within a preset range；Therefore, the specific variation pattern of the temperature in incubator is that the temperature in incubator changes at equal intervals within a preset range, so without being limited thereto；Temperature changes for temperature consecutive variations at equal intervals within a preset range, and the temperature that record can be reduced in the controllable range of error is combined with the data of characteristic value, to save experimental period, quickly establishes the table of comparisons；While temperature in incubator changes at equal intervals within a preset range, the processor record of touch detection circuit is located at the raw sensor data of touch screen at each temperature in incubator, i.e., record the influence value of all sense nodes of whole touch areas of touch screen or the influence value of each sense node in partial touch region.
In the present embodiment, the preset range of warm the temperature inside the box is [- 20,60], however the present embodiment to this not
It imposes any restrictions, the preset range can be set according to the use temperature range of electronic equipment.
In addition, the change interval of temperature can be set according to the precision of detection temperature, temperature change interval is 5 in the present embodiment, however the present embodiment is not intended to be limited in any this.
Step 202, the raw sensor data according to touch screen at each temperature calculates the characteristic value of touch screen at each temperature.
Specifically, influence value by obtaining each sense node of the touch area of touch screen at each temperature calculates the characteristic value of touch screen at each temperature, when the following table 1 is that warm the temperature inside the box changes within the scope of -20 DEG C to 60 DEG C, the table of the touch screen characteristic value of electronic equipment.
Table 1
| Temperature | Characteristic value | Temperature | Characteristic value | Temperature | Characteristic value |
| -20 | 2044 | 10 | 2200 | 40 | 2310 |
| -15 | 2104 | 15 | 2215 | 45 | 2314 |
| -10 | 2151 | 20 | 2236 | 50 | 2333 |
| -5 | 2166 | 25 | 2261 | 55 | 2352 |
| 0 | 2170 | 30 | 2282 | 60 | 2358 |
| 5 | 2177 | 35 | 2293 |
It should be noted that for better stability, it is so without being limited thereto using the average value of the influence value of each sense node of the touch area of the touch screen of acquisition as characteristic value in the present embodiment, it can also be using the original value of some sense node as characteristic value；Or the maximum value or minimum value of the influence value of all sense nodes of some touch area on touch screen are as characteristic value；Or the maximum value or minimum value of the influence value of all sense nodes on entire touch screen are as characteristic value.
Step 203, the characteristic value according to touch screen at each temperature establishes the default of characteristic value and temperature
Corresponding relationship.
Specifically, the default corresponding relationship of characteristic value and temperature is indicated with table 1, acquisition and the current immediate characteristic value of touch screen characteristic value from table, and corresponding temperature is worth as the temperature of current environment locating for touch screen using this feature.
For the present embodiment for first embodiment, provide the default corresponding relationship of characteristic value and temperature specifically establishes mode.
The application 3rd embodiment is related to a kind of touch detection circuit, referring to FIG. 6, touch detection circuit includes: processor 1 and memory 2.
In the present embodiment, processor 1 is connected to a touch screen 3 and memory 2, and processor 1 and storage 2 can be integrated in a touch control chip 12.Touch detection circuit can also include generating the driving circuit of driving signal and the processing circuits such as the sensor circuit for detecting inductive signal and corresponding AD conversion, amplification, mixing.
Memory 2 is used for the default corresponding relationship of preservative feature value and temperature, memory 2 can be a kind of nonvolatile memory, the default corresponding relationship of characteristic value and temperature is stored in advance in nonvolatile memory, it only needs to read the corresponding relationship during electricity operation on the touchscreen, without carrying out the operation of additional complexity, the real-time of touch screen detection user's operation is improved, operation is simple.
Specifically, when to establish mode include: that the temperature in an incubator changes within a preset range of the default corresponding relationship of characteristic value and temperature, processor record is located at the raw sensor data of the touch screen at each temperature in the incubator；The processor, in the raw sensor data at each temperature, calculates the touch screen in the characteristic value at each temperature according to the touch screen；The processor, in the characteristic value at each temperature, establishes the default corresponding relationship of the characteristic value and temperature according to the touch screen.
It is established in mode in the default corresponding relationship of above-mentioned characteristic value and temperature, by the electricity with touch screen
Sub- equipment is put into incubator, and the temperature in incubator can change within a preset range, and the specific variation pattern of temperature can be consecutive variations within a preset range, so without being limited thereto, can also be and changes at equal intervals within a preset range, the present embodiment is not intended to be limited in any this.Wherein, the corresponding relationship of characteristic value and temperature can be indicated by functional relation, functional relation can be according to the raw sensor data acquired at a temperature of consecutive variations within a preset range in advance, and it is obtained by fit approach, at this point, the specific variation pattern of the temperature in incubator can be the consecutive variations within a preset range of the temperature in incubator；It is so without being limited thereto, the corresponding relationship of characteristic value and temperature can be can be indicated by compareing sheet form, the table of comparisons can be obtained according to the raw sensor data acquired at a temperature of interval variation within a preset range in advance, at this point, the specific variation pattern of the temperature in incubator can change at equal intervals within a preset range for the temperature in incubator.The specific method for showing the default corresponding relationship that form establishes characteristic value and temperature about the corresponding relationship of both the above characteristic value and temperature has a detailed description in a second embodiment, and details are not described herein.
Touch screen 3 is used to obtain touch screen under the present circumstances and the raw sensor data under non-touch condition, the influence value of all sense nodes of whole touch areas in raw sensor data including the touch screen, or the influence value including each sense node in partial touch region.Wherein, touch screen can be capacitance touch screen, so without being limited thereto, can also be electric resistance touch screen etc., the present embodiment is not intended to be limited in any this.
Processor 1 is used to calculate the current characteristic value of touch screen according to raw sensor data, characteristic value is the influence value of all sense nodes of whole touch areas of touch screen, or the average value or intermediate value of the influence value of each sense node in partial touch region, then the corresponding environment temperature of current characteristic value can be obtained according to the default corresponding relationship of characteristic value and temperature.
Since first embodiment and second embodiment are corresponded to each other with the present embodiment, the present embodiment can work in coordination implementation with first embodiment and second embodiment.The relevant technical details mentioned in first embodiment and second embodiment are still effective in the present embodiment, the institute in first embodiment and second embodiment
Attainable technical effect similarly may be implemented in the present embodiment, and in order to reduce repetition, which is not described herein again.Correspondingly, the relevant technical details mentioned in the present embodiment are also applicable in first embodiment and second embodiment.
The present embodiment is in terms of existing technologies, obtain the characteristic value of touch screen under current environment, and the environment temperature that touch screen is presently in is obtained according to the default corresponding relationship of characteristic value and temperature, so as to provide basis for targetedly temperature drift compensation and temperature drift correction.
The application fourth embodiment is related to a kind of electronic equipment, for example, mobile phone, tablet computer etc..Referring to FIG. 6, electronic equipment includes the touch detection circuit in touch screen 3 and fourth embodiment.
Touch screen 3 can be capacitive touch screen, so without being limited thereto, can also be electric resistance touch screen etc., the present embodiment is not intended to be limited in any this.
The present embodiment in terms of existing technologies, provides a kind of electronic equipment that can obtain temperature locating for current environment.
It will be understood by those skilled in the art that the various embodiments described above are to realize the specific embodiment of the application, and in practical applications, can to it, various changes can be made in the form and details, without departing from spirit and scope.
Claims (19)
- A kind of detection method of touch screen environment temperature, comprising:The raw sensor data for obtaining touch screen under the present circumstances and being under non-touch condition；The current characteristic value of the touch screen is calculated according to raw sensor data；According to the default corresponding relationship of characteristic value and temperature, the current corresponding environment temperature of the characteristic value is obtained.
- Detection method as described in claim 1, wherein the default corresponding relationship of the characteristic value and temperature is indicated with functional relation.
- Detection method as claimed in claim 2, wherein the functional relation passes through fit approach and obtain according to the raw sensor data acquired at a temperature of preparatory consecutive variations within a preset range.
- Detection method as described in claim 1, wherein the characteristic value is indicated with the default corresponding relationship of temperature with compareing sheet form.
- Detection method as claimed in claim 4, wherein the table of comparisons is obtained according to the raw sensor data acquired at a temperature of preparatory interval variation within a preset range.
- Detection method as described in any one of claims 1 to 5, wherein the influence value of all sense nodes of whole touch areas in the raw sensor data including the touch screen, or the influence value including each sense node in partial touch region.
- Detection method as claimed in claim 6, wherein the characteristic value is the average value or intermediate value of each influence value.
- Detection method as described in claim 1, wherein the mode of establishing of the default corresponding relationship of the characteristic value and temperature includes:When temperature in one incubator changes within a preset range, record is located at the touch screen in the incubator Raw sensor data at each temperature；According to the touch screen in the raw sensor data at each temperature, the touch screen is calculated in the characteristic value at each temperature；According to the touch screen in the characteristic value at each temperature, the default corresponding relationship of the characteristic value and temperature is established.
- A kind of touch detection circuit, comprising: processor and memory, the processor are connected to a touch screen and the memory；The memory is used for the default corresponding relationship of preservative feature value and temperature；The touch screen is used to obtain the touch screen under the present circumstances and the raw sensor data under non-touch condition；The processor is used to calculate the current characteristic value of the touch screen according to the raw sensor data, and according to the default corresponding relationship of the characteristic value and temperature, obtains the current corresponding environment temperature of the characteristic value.
- Touch detection circuit as claimed in claim 9, wherein the default corresponding relationship of the characteristic value and temperature is indicated with functional relation.
- Touch detection circuit as claimed in claim 10, wherein the functional relation passes through fit approach and obtain according to the raw sensor data acquired at a temperature of preparatory consecutive variations within a preset range.
- Touch detection circuit as claimed in claim 9, wherein the characteristic value is indicated with the default corresponding relationship of temperature with compareing sheet form.
- Touch detection circuit as claimed in claim 12, wherein the table of comparisons is obtained according to the raw sensor data acquired at a temperature of preparatory interval variation within a preset range.
- Touch detection circuit as described in any one of claim 9 to 13, wherein the original inspection The influence value of all sense nodes of whole touch areas in measured data including the touch screen, or the influence value including each sense node in partial touch region.
- Touch detection circuit as claimed in claim 14, wherein the characteristic value is the average value or intermediate value of each influence value.
- Touch detection circuit as claimed in claim 9, wherein the mode of establishing of the default corresponding relationship of the characteristic value and temperature includes:When temperature in one incubator changes within a preset range, the processor record is located at the raw sensor data of the touch screen at each temperature in the incubator；The processor, in the raw sensor data at each temperature, calculates the touch screen in the characteristic value at each temperature according to the touch screen；The processor, in the characteristic value at each temperature, establishes the default corresponding relationship of the characteristic value and temperature according to the touch screen.
- Touch detection circuit as claimed in claim 9, wherein the processor and the memory are integrated in a touch control chip.
- A kind of electronic equipment, comprising: touch detection circuit described in any one of touch screen and claim 9 to 17.
- Electronic equipment as claimed in claim 18, wherein the touch screen is capacitance touch screen.
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| PCT/CN2017/091724 WO2019006666A1 (en) | 2017-07-04 | 2017-07-04 | Touch detection circuit, electronic device, and method for detecting environment temperature of touchscreen |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815429A (en) * | 2006-01-24 | 2006-08-09 | 中国电子科技集团公司第五十五研究所 | Method and device for automatically removing temperature difference drift of contact coordinate for touch screen |
| CN102880366A (en) * | 2012-08-29 | 2013-01-16 | 北京集创北方科技有限公司 | Capacitive touch screen temperature drift characteristic detection method and detection system |
| CN102968217A (en) * | 2012-12-07 | 2013-03-13 | 深圳市汇顶科技股份有限公司 | Reference updating method and system for touch screen as well as touch terminal |
| US20140139478A1 (en) * | 2012-11-22 | 2014-05-22 | Samsung Electro-Mechanics Co., Ltd. | Touch sensing method and touch sensing device |
| US20150287371A1 (en) * | 2014-04-04 | 2015-10-08 | Japan Display Inc. | Display device, temperature information acquiring device, and temperature information acquiring method |
| JP2016091052A (en) * | 2014-10-29 | 2016-05-23 | 京セラ株式会社 | Electronic device |
| CN105653096A (en) * | 2015-12-31 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Touch screen firmware parameter adjusting method and device and terminal |
| US20160179285A1 (en) * | 2014-12-19 | 2016-06-23 | Salt International Corp. | Capacitive sensing device and capacitive sensing method |
| CN105807998A (en) * | 2016-03-09 | 2016-07-27 | 周奇 | Correction method and device of capacitive touch screen |
| US20160246428A1 (en) * | 2014-12-31 | 2016-08-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Driving circuit for touch screen, touch screen, and electronic terminal |
| CN105912159A (en) * | 2016-04-06 | 2016-08-31 | 宸鸿科技(厦门)有限公司 | Pressure sensing method and system thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929419B (en) * | 2011-08-10 | 2016-05-11 | 深圳市顶星数码网络技术有限公司 | A kind of automatic calibrating method, system and automatic calibration touch panel device of touch-screen |
| CN104062326B (en) * | 2013-03-22 | 2017-03-01 | 联想(北京)有限公司 | Environment detection method and device |
| CN105549701B (en) * | 2015-12-09 | 2019-05-14 | Oppo广东移动通信有限公司 | Temperature-compensation method, device and mobile terminal for mobile terminal |
-
2017
- 2017-07-04 CN CN201780000620.7A patent/CN110337629A/en active Pending
- 2017-07-04 WO PCT/CN2017/091724 patent/WO2019006666A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1815429A (en) * | 2006-01-24 | 2006-08-09 | 中国电子科技集团公司第五十五研究所 | Method and device for automatically removing temperature difference drift of contact coordinate for touch screen |
| CN102880366A (en) * | 2012-08-29 | 2013-01-16 | 北京集创北方科技有限公司 | Capacitive touch screen temperature drift characteristic detection method and detection system |
| US20140139478A1 (en) * | 2012-11-22 | 2014-05-22 | Samsung Electro-Mechanics Co., Ltd. | Touch sensing method and touch sensing device |
| CN102968217A (en) * | 2012-12-07 | 2013-03-13 | 深圳市汇顶科技股份有限公司 | Reference updating method and system for touch screen as well as touch terminal |
| US20150287371A1 (en) * | 2014-04-04 | 2015-10-08 | Japan Display Inc. | Display device, temperature information acquiring device, and temperature information acquiring method |
| JP2016091052A (en) * | 2014-10-29 | 2016-05-23 | 京セラ株式会社 | Electronic device |
| US20160179285A1 (en) * | 2014-12-19 | 2016-06-23 | Salt International Corp. | Capacitive sensing device and capacitive sensing method |
| US20160246428A1 (en) * | 2014-12-31 | 2016-08-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Driving circuit for touch screen, touch screen, and electronic terminal |
| CN105653096A (en) * | 2015-12-31 | 2016-06-08 | 宇龙计算机通信科技(深圳)有限公司 | Touch screen firmware parameter adjusting method and device and terminal |
| CN105807998A (en) * | 2016-03-09 | 2016-07-27 | 周奇 | Correction method and device of capacitive touch screen |
| CN105912159A (en) * | 2016-04-06 | 2016-08-31 | 宸鸿科技(厦门)有限公司 | Pressure sensing method and system thereof |
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