CN101763195A - Method for preventing mobile terminal touch screen from being damaged and relevant device - Google Patents
Method for preventing mobile terminal touch screen from being damaged and relevant deviceDownload PDFInfo
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- CN101763195A CN101763195ACN201010002215ACN201010002215ACN101763195ACN 101763195 ACN101763195 ACN 101763195ACN 201010002215 ACN201010002215 ACN 201010002215ACN 201010002215 ACN201010002215 ACN 201010002215ACN 101763195 ACN101763195 ACN 101763195A
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Abstract
Description
Technical field
The present invention relates to technical field of mobile terminals, relate in particular to a kind of method and a kind of device that prevents mobile terminal touch screen to damage that prevents mobile terminal touch screen to damage.
Background technology
Along with the innovation of portable terminal manufacturing technology, the screen on the portable terminal from initial small size, monochromatic color develop to large scale and the direction that possesses touch function.The screen of portable terminal has the display effect and the increasing function of becoming better and better.The portable terminal of present middle and high end all has the touch-screen of large-size, even the used for mobile terminal touch-screen that has has replaced most conventional keys, for example the function of numerical key except touch-screen, has only a few necessary buttons such as power switch on the panel of this portable terminal.
Yet the portable terminal that possesses the large scale touch-screen is compared with the portable terminal of previous small-size screen, damages because of outside unscheduled events such as scuffing, weight easilier, in case touch-screen is damaged, can't carry out touch function.
For touch-screen, the common cause that causes damaging mainly contains following two kinds:
1, too sharp-pointed object slides on touch-screen, and for example sharp-pointed nail, inappropriate felt pen carry out touch operation;
2, for a long time touch-screen is applied than weight power, for example portable terminal is placed on other objects extruding around the quilt in pocket, the school bag.
For the portable terminal that replaces most conventional keys with touch-screen, because touch-screen is damaged the back user and can't imports by touch-screen, thereby this portable terminal will be lost the function of the overwhelming majority, except changing the touch-screen related device, do not have better solution, therefore how preventing touch-screen to be damaged becomes a problem demanding prompt solution.
Summary of the invention
The embodiment of the invention provides a kind of method of preventing mobile terminal touch screen to damage, in order to provide a kind of touch-screen of portable terminal of avoiding because of pushing or scratch the scheme of damaging.
Accordingly, the embodiment of the invention also provides a kind of device that prevents mobile terminal touch screen to damage.
The technical scheme that the embodiment of the invention provides is as follows:
A kind of method of preventing mobile terminal touch screen to damage comprises:
After detecting touch-screen and coming in contact incident, determine whether this contact incident can cause touch screen from being damaged; And
When determining this contact incident touch screen from being damaged can be caused, carry out the measure of predetermined prevention touch screen from being damaged.
A kind of device that prevents mobile terminal touch screen to damage comprises:
Detecting unit is used for the senses touch screen and whether comes in contact incident;
Determining unit is used for determining whether this contact incident can cause touch screen from being damaged when detecting unit detects touch-screen and comes in contact incident;
Performance element is used for carrying out the measure of predetermined prevention touch screen from being damaged when determining unit is determined this contact incident and can be caused touch screen from being damaged.
A kind of device that prevents mobile terminal touch screen to damage comprises four-wire type touch-screen connector, controller, comparer sum counter, wherein:
Four-wire type touch-screen connector is used for when detecting touch-screen and come in contact incident, the output non-zero level;
Comparer is used for when four-wire type touch-screen connector output non-zero level, to the predetermined significant level of counter output;
Counter, be used for the level of comparer output being sampled with preset frequency, when each sampling, if sampled value is that significant level then adds 1 with count value, and whether definite current count value surpasses predetermined threshold, and when determining current count value, send prearranged signals to controller above predetermined threshold; Otherwise with the count value zero clearing;
Controller is used for carrying out the measure of predetermined prevention touch screen from being damaged after receiving the prearranged signals that counter sends.
The scheme of the prevention touch screen from being damaged that the embodiment of the invention provides, after detecting touch-screen the contact incident taken place, judge whether this contact incident can cause touch screen from being damaged, sending alerting signal in judged result when being takes measures with the prompting mobile terminal user, perhaps carrying out vibrations waits measure to change the position of portable terminal, thereby realize finding as early as possible to cause the impaired external event of touch-screen, prevent that touch-screen is damaged.
Description of drawings
Fig. 1 is the sandwich construction synoptic diagram of electric resistance touch screen;
Fig. 2 detects the schematic diagram of contact incident for electric resistance touch screen;
Fig. 3 is the main realization principle flow chart of the embodiment of the invention;
Fig. 4 determines the synoptic diagram of the average pressure value on the contact point unit area for the embodiment of the invention;
Fig. 5 is for determining the synoptic diagram of contacting points position information;
A kind of principle schematic of preventing the device of mobile terminal touch screen damage that Fig. 6 provides for the embodiment of the invention;
The principle schematic of the device that the another kind prevention mobile terminal touch screen that Fig. 7 provides for the embodiment of the invention damages;
A kind of structural representation that prevents the device of mobile terminal touch screen damage that Fig. 8 provides for the embodiment of the invention.
Embodiment
Present most touch-screen is an electric resistance touch screen, electric resistance touch screen is the multi-layer compound film structure, please refer to shown in the accompanyingdrawing 1, electric resistance touch screen comprises basic unit, first conductive layer, second conductive layer and plastic layer, wherein the material of basic unit is simple glass or organic glass, there is first conductive layer in basic unit towards the one side full-filling of plastic layer, and plastic layer has second conductive layer towards the one side full-filling of basic unit.Septum pellucidum by tiny (diameter is less than the per mille foot) in a large number is spaced apart from name a person for a particular job first conductive layer and second conductive layer, and touch-screen these transparent isolating points when being not pressed make first conductive layer and second conductive layer keep insulation.Please refer in accompanying drawing 2, the first conductive layers and second conductive layer and to connect the predetermined voltage that Y direction (width of conductive layer or length direction) arranged on one of them conductive layer, the even voltage field of 3V for example, the another one conductive layer is as the detecting layer, and voltage is zero.
When touch-screen is subjected to pushing, first conductive layer produces one with second conductive layer at contacting points position and contacts incident, the voltage of detecting layer becomes non-zero by zero, after this variation controlled device detects, the voltage that obtains is compared with above-mentioned predetermined voltage, thus the coordinate of definite contact point Y direction.For example, when detecting voltage and being 1.5v, ratio is 1/2, the coordinate of contact point Y direction is 1/2 of a touch-screen Y direction size so, suppose that the touch-screen Y direction is of a size of 100 units, the coordinate of contact point Y direction is 50 units so, in like manner can determine the coordinate of contact point X-direction.Except the coordinate position of contact point, controller can also obtain the force value of contact point by the sensor on the touch-screen.
Whether the embodiment of the invention by the senses touch screen contact incident has taken place, when determining this contact incident and can cause touch screen from being damaged in the time that continues according to the force value of contact point or contact incident, send alerting signal, prompting mobile terminal the user take measures, thereby realize finding as early as possible to cause the impaired external event of touch-screen, prevent that touch-screen is damaged.
Accordingly, the embodiment of the invention also provides the implementation of the software and hardware of above-mentioned principle correspondence.
Be explained in detail to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
As shown in Figure 3, the main realization principle process of the embodiment of the invention is as follows:
Step 10 detects whether the contact incident has taken place, and when detecting the contact incident, enters step 20;
Step 20 according to the force value and the duration of contact of contact point, determines whether this contact incident can cause touch screen from being damaged;
Step 30 when step 20 is determined this contact incident and can be caused touch screen from being damaged, is carried out the measure of prevention touch screen from being damaged.
To introduce several embodiment in detail and come the main realization principle of the inventive method is explained in detail and illustrates according to foregoing invention principle of the present invention below.
Embodiment one
Controller according to the position of each contact point that gets access to, and the force value of each contact point correspondence, is determined the average pressure value of contact point unit area when detecting touch-screen the contact incident has taken place.
Please refer to accompanying drawing 4, two contact points when contact point A once contacts incident with contact point B for generation, wherein the force value of contact point A is 100 Pascals, and the force value of contact point B is 60 Pascals, so the average pressure value on the unit area that has point of contact be (100+60)/2=80 Pascal.
Whether controller judges the average pressure value of contact point unit area greater than predetermined threshold, in the average pressure value of judging the contact point unit area during greater than predetermined threshold, sends and is used to remind the user to take to prevent the alerting signal of the measure of touch screen from being damaged; Otherwise do not handle.
Suppose that predetermined threshold is 50 Pascals, when controller is judged average pressure value 80 Pascals on the contact point unit area and surpassed predetermined threshold, remind the user to take to prevent the measure of touch screen from being damaged by modes such as caution the tinkle of bells.
Embodiment two
Controller is with predetermined period, and for example the length in each cycle is 1s, detects with preset frequency whether the contact incident is arranged in other words; And determine in consecutive periods, to detect the number of times of contact incident, specifically, controller is when detecting the contact incident, by counter records number oftimes 1, if in next cycle, continue to have detected the contact incident, counter adds 1 so, if do not detect contact incident, counter O reset so in next cycle, controller is detecting the contact incident, after counter adds 1, judge the counter currency, thereby determine in consecutive periods, to detect the number of times of contact incident.
Controller is after determining the number of times that detects the contact incident in consecutive periods, judge that whether this number of times is greater than predetermined threshold, if greater than predetermined threshold, then send and be used to remind the user to take to prevent the alerting signal of the measure of touch screen from being damaged, perhaps take the corresponding measure that prevents touch screen from being damaged; Otherwise do not handle.
Suppose that controller all detects the contact incident that taken place in 20 continuous cycles, and predetermined threshold is 10 times, controller is judged the number of times that detects the contact incident in consecutive periods and has been surpassed predetermined threshold 20 times so, controller can remind the user to take to prevent the measure of touch screen from being damaged by modes such as caution the tinkle of bells, also can adopt predetermined measures to prevent that touch-screen is damaged in addition, for example the portable terminal at controller control touch-screen place shakes, if touch-screen is subjected to long extruding in pocket or school bag usually, by vibrations the position of touch-screen is changed, thereby help to eliminate the extruding that is subjected to.
The scheme of the prevention touch screen from being damaged that the embodiment of the invention provides, after detecting touch-screen the contact incident taken place, when determining this contact incident and can cause touch screen from being damaged, sending alerting signal takes measures with the prompting mobile terminal user, perhaps carrying out vibrations waits measure to change the position of portable terminal, thereby realize finding as early as possible to cause the impaired external event of touch-screen, prevent that touch-screen is damaged.
Embodiment three
The scheme of the prevention touch screen from being damaged that provides among embodiment one, the embodiment two can adopt the mode of computer software to realize wherein each step, and the scheme that realizes the prevention touch screen from being damaged by hardware mode also is provided in the present embodiment.
Please refer to accompanying drawing 5, the synoptic diagram of reference coordinate when determining contacting points position information on the electric resistance touch screen for having now, existing electric resistance touch screen mostly is the four-wire type electric resistance touch screen, is reference point with the central point in the location during contact point, when contact point is positioned at the upper-right position of touch-screen, the horizontal ordinate of contact point be on the occasion of; When contact point was positioned at the top-left position of touch-screen, the horizontal ordinate of contact point was a negative value, ordinate be on the occasion of; When contact point was positioned at the position, lower-left of touch-screen, the horizontal ordinate of contact point was a negative value, and ordinate is a negative value; When contact point is positioned at the position, bottom right of touch-screen, the horizontal ordinate of contact point be on the occasion of, ordinate is a negative value.
Please refer to accompanying drawing 6, the principle schematic that the realization that provides for present embodiment prevents the device of touch screen from being damaged.Wherein four-wire type touch-screen connector has four port x+, x-, y+, y-, and wherein x+ is used for when the touch-screen upper-right position has the contact incident, exports one and is higher than zero voltage, and the effect of x-, y+, y-is similar, here repeats no more.
When touch-screen comes in contact incident, the x axle of contact point correspondence or the voltage on the y axle become non-zero by zero on the conductive layer, at this moment x+ or x-port are to the voltage at comparer output contact point place this moment, because the reference voltage of comparer is 0v, comparer is after detecting the voltage that is higher than 0v, to predetermined significant level of counter output, counter is with preset sampling frequency, for example 1Hz level that comparer is sent is sampled, when each sampling, if sampled value be significant level then counter on original count value basis, add 1, if sampled value is other values except that described significant level, then counter is with the count value zero clearing.When the accumulated value of counter surpassed predetermined threshold, for example predetermined threshold was 20 times, sent a prearranged signals to controller, after controller receives prearranged signals, drove audio chip output caution the tinkle of bells; After perhaps controller receives prearranged signals, drive the vibrations device portable terminal is shaken.
Preferably, please refer to accompanying drawing 7, on the basis of accompanying drawing 6, increased switch A, switch B and interrupt flip-flop.Switch A, switch B are connected between four-wire type touch-screen connector and the comparer.Normally use under the situation of (active) at portable terminal, controller gauge tap A, switch B disconnect four-wire type touch-screen connector and comparer, for example switch to that x+ directly links to each other with X+, x-directly links to each other with X-.Do not operating relevant incident with the user surpassing the schedule time, when for example contacting incident, key-press event etc. and taking place, portable terminal enters dormant state (idle).Before portable terminal enters dormant state, controller control y+, y-output predetermined voltage, 3v voltage and switch A, switch B switched to four-wire type touch-screen connector and comparer are communicated with for example, when contact first time incident takes place, x axle level change triggers counter is counted on the one hand, and detailed process and accompanying drawing 6 are similar; Thereby y axle level sends an interruption by high step-down to controller on the other hand, controller is had no progeny in receiving this, the recovered part function is to prepare the prearranged signals that the count pick up device sends from dormant state, and when receiving prearranged signals, drive audio chip or drive vibrations device transmission alerting signal.
Accompanying drawing 7 is to change as the interruption that makes controller recovered part function with y axle level, change with the level of x axle that foundation as counting is described, obviously, also can x axle level change, change as the foundation of counting with the level of y axle as the interruption that makes controller recovered part function.
Preferably, the controller in accompanying drawing 6, the accompanying drawing 7 can use embedded type CPU to realize.
The device of the prevention touch screen from being damaged in the accompanying drawing 7 is compared with the device of the prevention touch screen from being damaged shown in the accompanying drawing 6, has increased a prerequisite: when the user normally uses touch-screen, do not send alerting signal to the user.Controller need not to be ready at all times the prearranged signals that the count pick up device sends when dormancy, only have no progeny in receiving, and prepares the prearranged signals that the count pick up device sends, thereby can saves energy, reduces power consumption.
Because present most of touch-screens adopt is that central point with touch-screen is the four-wire type touch-screen connector of reference point, so present embodiment is that example is introduced with four-wire type touch-screen connector.Obviously, under the situation of touch-screen connector that with the touch-screen lower left corner is the twin wire touch-screen connector of reference point or other types, the scheme that present embodiment provides is simple to stand good after adjusting.
The scheme of the hardware mode realization prevention touch screen from being damaged that provides among the embodiment three is compared with the scheme that the computer software mode that embodiment one, embodiment two provide realizes, software implement scheme can not increase the manufacturing cost of whole portable terminal, carrying out logic control by program gets final product, but for controller, need real-time detection whether to come in contact incident, remain normal use (active) state, thereby can increase power consumption of mobile terminals; For hardware implementations, though need to increase a small amount of several devices, increased the manufacturing cost of whole portable terminal, can reduce power consumption.
Correspondingly, the embodiment of the invention also provides a kind of device that prevents mobile terminal touch screen to damage, and as shown in Figure 8, this device comprises detectingunit 801, determiningunit 802 andperformance element 803, and is specific as follows:
Detectingunit 801 is used for the senses touch screen and whether comes in contact incident;
Determiningunit 802 is used for determining whether this contact incident can cause touch screen from being damaged when detectingunit 801 detects touch-screen and comes in contact incident;
Preferably, theperformance element 803 in the device that the prevention mobile terminal touch screen in the accompanying drawing 8 damages comprises that specifically first carries out thesubelement 804 and thesecond execution subelement 805, wherein:
First carries outsubelement 804, is used for when determiningunit 802 is determined this contact incident and can be caused touch screen from being damaged, and the audio chip that drives in the described portable terminal is used to remind the user to take to prevent the caution bell sound of touch screen from being damaged measure with transmission;
Second carries outsubelement 805, is used for driving the vibrations device vibrations in the described portable terminal when determiningunit 802 is determined this contact incident and can be caused touch screen from being damaged, makes described portable terminal change current location.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. a method of preventing mobile terminal touch screen to damage is characterized in that, comprising:
After detecting touch-screen and coming in contact incident, determine whether this contact incident can cause touch screen from being damaged; And
When determining this contact incident touch screen from being damaged can be caused, carry out the measure of predetermined prevention touch screen from being damaged.
2. the method for claim 1 is characterized in that, the level by conductive layer in the touch screen structure changes and comes the senses touch screen to come in contact incident.
3. the method for claim 1 is characterized in that, determines that whether this contact incident can cause touch screen from being damaged, specifically comprises:
Determine the average pressure value of contact point unit area, and
During greater than first predetermined value, determine that this contact incident can cause touch screen from being damaged in the contact point unit area average pressure value of determining.
4. the method for claim 1 is characterized in that, determines that whether this contact incident can cause touch screen from being damaged, specifically comprises:
Determine to be consecutively detected the number of times of contact incident with the predetermined detection cycle, and
During greater than second predetermined value, determine that this contact incident can cause touch screen from being damaged at the number of times of determining.
5. as the described method of arbitrary claim in the claim 1 to 4, it is characterized in that the measure of prevention touch screen from being damaged comprises:
The audio chip that drives in the described portable terminal is used to remind the user to take to prevent the caution bell sound of touch screen from being damaged measure with transmission; Or
Drive the vibrations device vibrations in the described portable terminal, make described portable terminal change current location.
6. a device that prevents mobile terminal touch screen to damage is characterized in that, comprising:
Detecting unit is used for the senses touch screen and whether comes in contact incident;
Determining unit is used for determining whether this contact incident can cause touch screen from being damaged when detecting unit detects touch-screen and comes in contact incident;
Performance element is used for carrying out the measure of predetermined prevention touch screen from being damaged when determining unit is determined this contact incident and can be caused touch screen from being damaged.
7. device as claimed in claim 6 is characterized in that, described performance element specifically comprises:
First carries out subelement, is used for when determining unit is determined this contact incident and can be caused touch screen from being damaged, and the audio chip that drives in the described portable terminal is used to remind the user to take to prevent the caution bell sound of touch screen from being damaged measure with transmission;
Second carries out subelement, is used for driving the vibrations device vibrations in the described portable terminal when determining unit is determined this contact incident and can be caused touch screen from being damaged, makes described portable terminal change current location.
8. a device that prevents mobile terminal touch screen to damage is characterized in that, comprises four-wire type touch-screen connector, controller, comparer sum counter, wherein:
Four-wire type touch-screen connector is used for when detecting touch-screen and come in contact incident, the output non-zero level;
Comparer is used for when four-wire type touch-screen connector output non-zero level, to the predetermined significant level of counter output;
Counter, be used for the level of comparer output being sampled with preset frequency, when each sampling, if sampled value is that significant level then adds 1 with count value, and whether definite current count value surpasses predetermined threshold, and when determining current count value, send prearranged signals to controller above predetermined threshold; Otherwise with the count value zero clearing;
Controller is used for carrying out the measure of predetermined prevention touch screen from being damaged after receiving the prearranged signals that counter sends.
9. device as claimed in claim 8 is characterized in that, also comprises switch and interrupt flip-flop, wherein:
Described switch is connected between four-wire type touch-screen connector and the comparer, when described controller is in normal operating conditions at described portable terminal, controls described switch and disconnects, and before described portable terminal enters dormant state, control described switch closure;
When interrupt flip-flop is in dormant state and four-wire type touch-screen connector output level non-zero at described portable terminal, send an interruption, have no progeny during described controller receives and prepare the prearranged signals that the count pick up device sends to controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010002215ACN101763195B (en) | 2010-01-08 | 2010-01-08 | Method for preventing mobile terminal touch screen from being damaged and relevant device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010002215ACN101763195B (en) | 2010-01-08 | 2010-01-08 | Method for preventing mobile terminal touch screen from being damaged and relevant device |
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| CN101763195B CN101763195B (en) | 2012-09-12 |
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Cited By (20)
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| CN102495691A (en)* | 2011-10-04 | 2012-06-13 | 友达光电股份有限公司 | touch point sensing method |
| CN103488336A (en)* | 2013-08-17 | 2014-01-01 | 广东欧珀移动通信有限公司 | Method for reminding before scratch of touch screen of mobile terminal and mobile terminal |
| CN104007905A (en)* | 2013-02-27 | 2014-08-27 | 瀚宇彩晶股份有限公司 | finger joint protection |
| CN104656981A (en)* | 2014-11-21 | 2015-05-27 | 业成光电（深圳）有限公司 | Touch display device and operation method thereof |
| CN104735240A (en)* | 2015-01-30 | 2015-06-24 | 深圳市中兴移动通信有限公司 | Mobile terminal information reminding method and device |
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| CN102495691B (en)* | 2011-10-04 | 2014-03-26 | 友达光电股份有限公司 | touch point sensing method |
| CN102495691A (en)* | 2011-10-04 | 2012-06-13 | 友达光电股份有限公司 | touch point sensing method |
| CN104007905A (en)* | 2013-02-27 | 2014-08-27 | 瀚宇彩晶股份有限公司 | finger joint protection |
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