CN207851794U - Capacitive touch screen with automatic temperature drift compensation function - Google Patents
Capacitive touch screen with automatic temperature drift compensation function Download PDFInfo
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- CN207851794U CN207851794U CN201721689737.4U CN201721689737U CN207851794U CN 207851794 U CN207851794 U CN 207851794U CN 201721689737 U CN201721689737 U CN 201721689737U CN 207851794 U CN207851794 U CN 207851794U
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- touch screen
- capacitive touch
- drift compensation
- temperature drift
- module
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Abstract
The utility model discloses a kind of capacitive touch screens with automatic temperature drift compensation function, the touch chip body being connect including capacitive touch screen ontology and with the intrinsic electrode layer of capacitive touch screen, it touches chip body and is internally provided with contact detection module, contact detection module includes the temperature sense module, historgraphic data recording module and temperature drift compensation module being connect respectively with main processing block.The utility model solves in the prior art when being detected to capacitance plate, is to be detected by continuously monitoring the variation of mutual capacitance value deviation, but this detection pattern is computationally intensive, and problem that accuracy is relatively low.
Description
Technical field
The utility model is related to touch screen field, more particularly to a kind of capacitance touch with automatic temperature drift compensation function
Screen.
Background technology
Capacitive touch screen plates long and narrow electrode on four side of touch screen, and a low-voltage AC is formed in electric conductor
Electric field.When touching screen, due to human body electric field, finger can form a coupled capacitor with conductor interlayer, and four side electrodes are sent out
Electric current can flow to contact, and electric current power is directly proportional at a distance from finger to electrode, is located at the controller on touch screen backstage just
The ratio and power of meeting calculating current, the accurate position for calculating touch point.With the rise of smart mobile phone, tablet computer, capacitance
The commercially available faster development of formula touch screen.It is by continuously monitoring mutually currently on the market when being detected to capacitance plate
Variation in capacitance value changes to be detected, but this detection pattern is computationally intensive, and accuracy is relatively low.
Utility model content
In view of this, the main purpose of the utility model is to provide a kind of condenser types with automatic temperature drift compensation function
Touch screen, it is intended to solve in the prior art when being detected to capacitance plate, be the change by continuously monitoring mutual capacitance value deviation
Change to be detected, but this detection pattern is computationally intensive, and the problem that accuracy is relatively low.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of capacitive touch screen with automatic temperature drift compensation function, including capacitive touch screen ontology and and condenser type
The touch chip body of electrode layer connection in touch screen body, touches chip body and is internally provided with contact detection module, contact
Detection module includes the temperature sense module, historgraphic data recording module and temperature drift compensation mould being connect respectively with main processing block
Block.
Wherein, capacitive touch screen originally further includes adhesive layer, the protective layer that electrode layer is sequentially arranged above；It is set in turn in
Glass substrate, display layer below electrode layer.
Wherein, it touches chip body quantity and is at least 1.
It has the beneficial effect that：
Portion increases contact detection module in the chip, detects the variation of each point data of touch screen, unites to historical data
Meter analysis, thus corrects detection benchmark, to reducing the influence that environmental change detect touch screen, has calculation amount small, standard
The higher advantage of true property.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the capacitive touch screen ontology disassemblying structure schematic diagram in the utility model.
Fig. 2 is the touch chip body internal structure schematic diagram in the utility model.
Drawing reference numeral explanation：
Label title label name claims
1 capacitive touch screen ontology 2 touches chip body
10 protective layer, 20 contact detection module
11 adhesive layer, 200 historgraphic data recording module
12 electrode layer, 201 temperature sense module
13 glass substrate, 202 main processing block
14 display layer, 203 temperature drift compensation module
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.
Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
The description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as
It indicates or implies its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.
In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise
Clear specific restriction.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, also may be used
To be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.
Referring to Fig.1~Fig. 2, should be with the capacitive touch screen of automatic temperature drift compensation function, including capacitive touch screen sheet
Body 1 and the touch chip body 2 being connect with the electrode layer 12 in capacitive touch screen ontology 1 touch chip body 2 and are internally provided with
Contact detection module 20, contact detection module 20 include the temperature sense module 201 being connect respectively with main processing block 202, go through
History data recordin module 200 and temperature drift compensation module 203.
The 20 combination temperature induction module 201 of contact detection module inside chip body 2 is touched to supervise existing temperature
It surveys, detects the variation of each point data of touch screen, it is for statistical analysis to historical data, it is analyzed backward by main processing block 202
Temperature drift compensation module 203 sends order, thus corrects detection benchmark.
Referring to Fig.1~Fig. 2, capacitive touch screen originally further include adhesive layer 11, the protection that electrode layer 12 is sequentially arranged above
Layer 10；It is set in turn in glass substrate 13, the display layer 14 of 12 lower section of electrode layer.
The protective layer 10 for being set to 11 top of adhesive layer is direct contact surface, and protection screen internal component is without damage, glues
Layer 11 is closed to connect protective layer 10 with electrode layer 12；The glass substrate 13 for being set to 14 top of display layer is played a supporting role, and is shown
Show 14 abutted equipment bottom of layer.
Referring to Fig.1, it touches 2 quantity of chip body and is at least 1.
Because being limited to the influence of screen thickness, it is impossible to be increased according to usage scenario size and touch chip body 2
Size, therefore increased according to actual demand and touch 2 quantity of chip.
Operation principle is as follows：
Portion increases contact detection module 20 in the chip, detects the variation of each point data of touch screen, is carried out to historical data
Thus statistical analysis corrects detection benchmark.Specifically, touching 20 combination temperature of contact detection module inside chip body 2
Induction module 201 is monitored existing temperature, detects the variation of each point data of touch screen, and statistical is carried out to historical data
Analysis sends to temperature drift compensation module 203 after being analyzed by main processing block 202 and orders.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Under every utility model in the utility model is conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (3)
1. a kind of capacitive touch screen with automatic temperature drift compensation function, which is characterized in that including capacitive touch screen ontology
The touch chip body being connect with the intrinsic electrode layer of the capacitive touch screen, the touch chip body are internally provided with
Contact detection module, the contact detection module include temperature sense module, the historical data being connect respectively with main processing block
Logging modle and temperature drift compensation module.
2. the capacitive touch screen according to claim 1 with automatic temperature drift compensation function, which is characterized in that the electricity
Appearance formula touch screen originally further includes adhesive layer, the protective layer that the electrode layer is sequentially arranged above；It is set in turn in the electrode layer
Glass substrate, the display layer of lower section.
3. the capacitive touch screen according to claim 1 with automatic temperature drift compensation function, which is characterized in that described to touch
It touches chip body quantity and is at least 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721689737.4U CN207851794U (en) | 2017-12-07 | 2017-12-07 | Capacitive touch screen with automatic temperature drift compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721689737.4U CN207851794U (en) | 2017-12-07 | 2017-12-07 | Capacitive touch screen with automatic temperature drift compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207851794U true CN207851794U (en) | 2018-09-11 |
Family
ID=63423651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721689737.4U Expired - Fee Related CN207851794U (en) | 2017-12-07 | 2017-12-07 | Capacitive touch screen with automatic temperature drift compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207851794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611402A (en) * | 2020-12-31 | 2021-04-06 | 均胜均安汽车电子(上海)有限公司 | Capacitive-based steering wheel touch identification method and system |
-
2017
- 2017-12-07 CN CN201721689737.4U patent/CN207851794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611402A (en) * | 2020-12-31 | 2021-04-06 | 均胜均安汽车电子(上海)有限公司 | Capacitive-based steering wheel touch identification method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 Termination date: 20201207 |