CN101763195B - 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 device Download PDF

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Publication number
CN101763195B
CN101763195B CN201010002215A CN201010002215A CN101763195B CN 101763195 B CN101763195 B CN 101763195B CN 201010002215 A CN201010002215 A CN 201010002215A CN 201010002215 A CN201010002215 A CN 201010002215A CN 101763195 B CN101763195 B CN 101763195B
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China
Prior art keywords
touch screen
damaged
screen
touch
contact incident
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Expired - Fee Related
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CN201010002215A
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Chinese (zh)
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CN101763195A (en
Inventor
张巧玲
王�琦
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Hisense Mobile Communications Technology Co Ltd
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Hisense Mobile Communications Technology Co Ltd
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Abstract

The invention discloses a method for preventing a mobile terminal touch screen from being damaged and a relevant device and is used for providing a scheme for preventing the mobile terminal touch screen from being damaged due to extrusion or scratch. The method comprises the following steps of: after detecting that a touch event of the touch screen occurs, determining whether the touch event can cause damage to the touch screen; and when determining that the touch event can cause damage to the touch screen, executing preset measures for preventing the mobile terminal touch screen from being damaged.

Description

Method and relevant apparatus that the prevention mobile terminal touch screen damages
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 more easily, 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 through touch-screen; Thereby this portable terminal will be lost the function of the overwhelming majority; Except changing the touch-screen related device, there is not 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 avoiding portable terminal 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 following:
A kind of method of preventing mobile terminal touch screen to damage comprises:
After detecting touch-screen and coming in contact incident, confirm the contact incident whether can cause touch screen from being damaged; And
When determining this contact incident and touch screen from being damaged can be caused, carry out the measure of predetermined prevention touch screen from being damaged;
Saidly confirm the contact incident whether can cause touch screen from being damaged, specifically comprise:
Detect with predetermined frequencies whether the contact incident is arranged, and confirm to be consecutively detected the number of times of contact incident with the predetermined detection cycle, and
, confirm and the contact incident can cause touch screen from being damaged during at the number of times of determining greater than predetermined value.
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;
Confirm the unit; Be used in detection confirming the contact incident whether can cause touch screen from being damaged when touch-screen comes in contact incident, saidly confirm the contact incident whether can cause touch screen from being damaged; Specifically comprise: detect with predetermined frequencies whether the contact incident is arranged; And confirm to be consecutively detected the number of times of contact incident, and during greater than predetermined value, confirm and the contact incident can cause touch screen from being damaged at the number of times of determining with the predetermined detection cycle;
Performance element when being used for determining this contact incident in definite unit and can causing touch screen from being damaged, is carried out the measure of predetermined prevention 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 after receiving the prearranged signals that counter sends, carrying out the measure of predetermined prevention touch screen from being damaged.
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; Whether judgement should the contact incident can cause touch screen from being damaged, sent alerting signal in judged result when being and took measures with the prompting mobile terminal user, perhaps carried out the position that vibrations wait measure change 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 confirms the synoptic diagram of the average pressure value on the contact point unit area for the embodiment of the invention;
Fig. 5 is for confirming 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 with reference to shown in the accompanying drawing 1, electric resistance touch screen comprises basic unit, first conductive layer, second conductive layer and plastic layer, and 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 with reference to connecting the predetermined voltage that Y direction (width of conductive layer or length direction) arranged on one of them conductive layer in accompanying drawing 2, the first conductive layers and second 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 receives when 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 Be 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 confirm the coordinate of contact point X-direction.Except the coordinate position of contact point, controller can also obtain the force value of contact point through the sensor on the touch-screen.
Whether the embodiment of the invention through 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, prevents that touch-screen is damaged.
Accordingly, the embodiment of the invention also provides the implementation of the corresponding software and hardware of above-mentioned principle.
Carry out detailed elaboration below in conjunction with each accompanying drawing to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach.
As shown in Figure 3, the main realization principle process of the embodiment of the invention is following:
Step 10 detects whether the contact incident has taken place, and when detecting the contact incident, gets into step 20;
Step 20 according to the force value and the duration of contact of contact point, confirms the contact incident whether 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 carried out detailed elaboration and explanation 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 corresponding force value of each contact point, is confirmed the average pressure value of contact point unit area when detecting touch-screen the contact incident has taken place.
Please with reference 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 through 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 confirm in consecutive periods, to detect the number of times of contact incident, specifically, controller is when detecting the contact incident; Through counter records number of times 1, if in next cycle, continue to have detected the contact incident, counter adds 1 so; If in next cycle, do not detect the contact incident, counter O reset so, controller is detecting the contact incident; After counter adds 1, judge the counter currency, thereby confirm in consecutive periods, to detect the number of times of contact incident.
Controller is after determining the number of times that in consecutive periods, detects the contact incident; 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 in consecutive periods, detects the contact incident and has been surpassed predetermined threshold 20 times so, and controller can remind the user to take to prevent the measure of touch screen from being damaged through 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 receives long extruding in pocket or school bag usually, through vibrations the position of touch-screen is changed, thereby help to eliminate the extruding that receives.
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, send alerting signal and take measures with the prompting mobile terminal user, perhaps carry out the position that vibrations wait measure change 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 through hardware mode also is provided in the present embodiment.
Please with reference to accompanying drawing 5; The synoptic diagram of reference coordinate when confirming contacting points position information on the electric resistance touch screen for having now; Mostly existing electric resistance touch screen 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 left upper/lower positions 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 with reference to accompanying drawing 6, the principle schematic of the device of the realization prevention touch screen from being damaged that provides for present embodiment.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 came in contact incident, x axle that contact point is corresponding on the conductive layer or the voltage on the y axle became non-zero by zero, and 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 said 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 with reference to accompanying drawing 7, switch A, switch B and interrupt flip-flop on the basis of accompanying drawing 6, have been increased.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 CS A, switch B break off 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 gets into dormant state (idle).Before portable terminal gets into dormant state; Controller control y+, y-export 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 took place, x axle level change triggers counter was 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 the vibrations device and send alerting signal.
Accompanying drawing 7 is to change as the interruption that makes controller recovered part function with y axle level; Describe as the foundation of counting with the level variation of x axle; 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 in receiving, have no progeny, 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 of twin wire touch-screen connector or other types that with the touch-screen lower left corner is reference point, stand good after the simple adjustment of the scheme that present embodiment provides.
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; Carry out logic control through program and get final product, but, need real-time detection whether to come in contact incident for controller; 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 detecting unit 801, confirms unit 802 and performance element 803, and is specific as follows:
Detecting unit 801 is used for the senses touch screen and whether comes in contact incident;
Confirm unit 802, be used for when detecting unit 801 detects touch-screen and comes in contact incident, confirming the contact incident whether can cause touch screen from being damaged;
Performance element 803 when being used for determining this contact incident in definite unit 802 and can causing touch screen from being damaged, is carried out the measure of predetermined prevention touch screen from being damaged.
Preferably, the performance element 803 in the device that the prevention mobile terminal touch screen in the accompanying drawing 8 damages comprises that specifically first carries out the subelement 804 and the second execution subelement 805, wherein:
First carries out subelement 804, and when being used for determining this contact incident in definite unit 802 and can causing touch screen from being damaged, the audio chip that drives in the said 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 805, when being used for determining this contact incident in definite unit 802 and can causing touch screen from being damaged, drives the vibrations device vibrations in the said portable terminal, makes said 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, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (7)

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, confirm the contact incident whether can cause touch screen from being damaged; And
When determining this contact incident and touch screen from being damaged can be caused, carry out the measure of predetermined prevention touch screen from being damaged;
Saidly confirm the contact incident whether can cause touch screen from being damaged, specifically comprise:
Detect with predetermined frequencies whether the contact incident is arranged, and confirm to be consecutively detected the number of times of contact incident with the predetermined detection cycle, and
, confirm and the contact incident can cause touch screen from being damaged during at the number of times of determining greater than predetermined value.
2. the method for claim 1 is characterized in that, the level through conductive layer in the touch screen structure changes and comes the senses touch screen to come in contact incident.
3. like the described method of arbitrary claim in the claim 1 to 2, it is characterized in that the measure of prevention touch screen from being damaged comprises:
The audio chip that drives in the said 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 said portable terminal, make said portable terminal change current location.
4. 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;
Confirm the unit; Be used in detection confirming the contact incident whether can cause touch screen from being damaged when touch-screen comes in contact incident, saidly confirm the contact incident whether can cause touch screen from being damaged; Specifically comprise: detect with predetermined frequencies whether the contact incident is arranged; And confirm to be consecutively detected the number of times of contact incident, and during greater than predetermined value, confirm and the contact incident can cause touch screen from being damaged at the number of times of determining with the predetermined detection cycle;
Performance element when being used for determining this contact incident in definite unit and can causing touch screen from being damaged, is carried out the measure of predetermined prevention touch screen from being damaged.
5. device as claimed in claim 4 is characterized in that, said performance element specifically comprises:
First carries out subelement, and when being used for determining this contact incident in definite unit and can causing touch screen from being damaged, the audio chip that drives in the said 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, when being used for determining this contact incident in definite unit and can causing touch screen from being damaged, drives the vibrations device vibrations in the said portable terminal, makes said portable terminal change current location.
6. 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 after receiving the prearranged signals that counter sends, carrying out the measure of predetermined prevention touch screen from being damaged.
7. device as claimed in claim 6 is characterized in that, also comprises switch and interrupt flip-flop, wherein:
Said switch is connected between four-wire type touch-screen connector and the comparer, when said controller is in normal operating conditions at said portable terminal, controls said switch and breaks off, and before said portable terminal gets into dormant state, control said switch closure;
When interrupt flip-flop is in dormant state and four-wire type touch-screen connector output level non-zero at said portable terminal, send an interruption, have no progeny during said controller receives and prepare the prearranged signals that the count pick up device sends to controller.
CN201010002215A 2010-01-08 2010-01-08 Method for preventing mobile terminal touch screen from being damaged and relevant device Expired - Fee Related CN101763195B (en)

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