CN106771817A - The detection method of short circuit in touch screen, touch screen - Google Patents
The detection method of short circuit in touch screen, touch screen Download PDFInfo
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- CN106771817A CN106771817A CN201710002186.8A CN201710002186A CN106771817A CN 106771817 A CN106771817 A CN 106771817A CN 201710002186 A CN201710002186 A CN 201710002186A CN 106771817 A CN106771817 A CN 106771817A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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Abstract
The present invention provides a kind of detection method of short circuit in touch screen, touch screen, belongs to technical field of touch control, and it is short-circuit in touch screen that it can at least partly solve the problems, such as that prior art cannot be detected.The touch screen that the detection method of short circuit is applicable in touch screen of the invention includes lining up multiple touch control electrodes of array, and each touch control electrode is corresponding with a lead and is connected with touch chip by the lead；The detection method of short circuit includes in the touch screen：At least one is selected from touch control electrode and detection signal is passed through thereto；Detect and whether export interference signal in other touch control electrodes, if detecting interference signal in certain touch control electrode, it is determined that be short-circuited between the touch control electrode of the touch control electrode and logical detection signal, the two is one group of short-circuiting electrode.
Description
Technical field
The invention belongs to technical field of touch control, and in particular to the detection method of short circuit in a kind of touch screen, touch screen.
Background technology
To simplify touch-control screen structure, touch-control structure can be integrated in display panel, i.e., using Full in Cell
The mode of Touch.A kind of structure of the touch screen of Full in cell touch is as shown in figure 1, multiple touch control electrodes 2 line up battle array
Row, in the touch-control stage, if there is touch-control, can produce touching signals in corresponding touch control electrode 2, the touch screen preferably can be certainly
Appearance formula touch screen.And in the display stage, each touch control electrode 2 is passed through common electric voltage, the i.e. time-sharing multiplex of touch control electrode 2 for common electrical
Pole.Meanwhile, a plurality of lead 1 being be arranged in parallel along column direction is additionally provided with touch screen, there is insulating barrier between lead 1 and touch control electrode 2
5, each touch control electrode 2 is connected with corresponding lead 1 by the via 51 in insulating barrier 5, so that touch control electrode 2 is connected
Touch chip (not shown), exports touching signals.Wherein, due to the gap very little between touch control electrode 2, it is not enough to accommodate entirely
Portion's lead 1, thus the orthographic projection that touch control electrode 2 must be with not corresponding lead 1 on a display panel have it is overlapping (certainly still
Insulation).
As shown in Fig. 2 damaged if as the reason such as foreign matter 9 insulating barrier 5, then may cause touch control electrode 2 and not with its
Corresponding lead 1 is electrically connected, so that two short circuits of touch control electrode 2；So, if occurring at one of touch control electrode 2
Touch-control, then occur touching signals (i.e. two touch control electrodes 2 of pit are filled in Fig. 1) in two touch control electrodes 2, it is right to cause
The misjudgment of position of touch, produces " terrible point ".And in the display stage, by common electric voltage in each touch control electrode 2, therefore touch
On showing without influence, this causes the prior art accurately cannot to detect short-circuit touch control electrode 2 for the short circuit of control electrode 2.
The content of the invention
Of the invention at least partly to solve the problems, such as that prior art cannot be detected short-circuit in touch screen, there is provided one kind can standard
Really the detection method of short circuit in touch screen, the touch screen of short-circuit detecting is showed.
The technical scheme that solution present invention problem is used is a kind of detection method of short circuit in touch screen, described to touch
Control screen includes lining up multiple touch control electrodes of array, and each touch control electrode is corresponding with a lead and by the lead and touch-control core
Piece is connected；The detection method of short circuit includes in the touch screen：
At least one is selected from touch control electrode and detection signal is passed through thereto；
Detect and whether export interference signal in other touch control electrodes, if detecting interference signal in certain touch control electrode,
It is short-circuited between the touch control electrode for determining the touch control electrode and logical detection signal, the two is one group of short-circuiting electrode.
Preferably, the lead be arranged in parallel along column direction；It is described selected from touch control electrode at least one and to its
In be passed through detection signal and include：One is only selected in same column touch control electrode and detection signal is passed through thereto；It is described to detect it
Whether interference signal is exported in its touch control electrode to be included：Other touch control electrodes of the touch control electrode column of the logical detection signal of detection
In whether export interference signal.
It may further be preferable that it is described at least one is selected from touch control electrode and detection signal is passed through thereto include：
Select the touch control electrode of same a line and be passed through detection signal thereto respectively.
Preferably, in the touch-control stage after determining the touch control electrode being short-circuited, also include：If one group of short circuit electricity
Extremely middle generation touching signals, then detect whether the touch control electrode around two touch control electrodes therein has touching signals respectively, and
It is determined that the touch control electrode that surrounding touch control electrode has touching signals is the touch control electrode that touch-control occurs, it is determined that surrounding touch control electrode oncontacting
The touch control electrode for controlling signal is that the touch control electrode of touch-control does not occur；Touching signals according to the touch control electrode that touch-control occurs are calculated and touched
Control position.
It may further be preferable that after detecting interference signal in certain touch control electrode, also including：According to interference signal and inspection
Survey the offset of the Strength co-mputation respective sets short-circuiting electrode of signal；After the touch control electrode that touch-control occurs is determined, also include：Root
According to the corresponding offset of this group of short-circuiting electrode, the touching signals to the touch control electrode of the generation touch-control are compensated；Described
Calculating position of touch according to the touching signals of the touch control electrode that touch-control occurs includes：According to the touch control electrode that touch-control occurs by mending
Touching signals after repaying calculate position of touch.
The technical scheme that solution present invention problem is used is a kind of touch screen, and it includes that the multiple for lining up array is touched
Control electrode includes lining up multiple touch control electrodes of array, and each touch control electrode is corresponding with a lead and by the lead and touch-control
Chip is connected；The touch screen also includes：
Selecting module, for selecting at least one from touch control electrode and being passed through detection signal thereto；
Whether detection module, export interference signal in other touch control electrodes for detecting, if being detected in certain touch control electrode
To interference signal, it is determined that be short-circuited between the touch control electrode of the touch control electrode and logical detection signal, the two is one group of short circuit electricity
Pole.
Preferably, the lead be arranged in parallel along column direction；The selecting module is used in same column touch control electrode only
Select one and be passed through detection signal thereto；The detection module is used to detect the touch control electrode column of logical detection signal
Whether interference signal is exported in other touch control electrodes.
It may further be preferable that the selecting module is used to select the touch control electrode of same a line and be passed through inspection thereto respectively
Survey signal.
Preferably, the touch screen also includes：Electrode determining module, for determining the touch control electrode being short-circuited
Have in the touch-control stage afterwards when producing touching signals in one group of short-circuiting electrode, detect respectively around two touch control electrodes therein
Whether touch control electrode has touching signals, and the touch control electrode for determining surrounding touch control electrode and having touching signals is the touch-control that touch-control occurs
Electrode, it is determined that touch control electrode of the surrounding touch control electrode without touching signals is that the touch control electrode of touch-control does not occur；Computing module, is used for
The touching signals of the touch control electrode of the generation touch-control determined according to electrode determining module calculate position of touch.
It may further be preferable that the touch screen also includes：Compensation value calculation module, for being detected in certain touch control electrode
To after interference signal, according to interference signal and the offset of the Strength co-mputation respective sets short-circuiting electrode of detection signal；Compensating module,
It is right according to the corresponding offset of this group of short-circuiting electrode after the touch control electrode that touch-control occurs is determined in electrode determining module
The touching signals of the touch control electrode that touch-control occurs are compensated；The computing module is used to be determined according to electrode determining module
Generation touch-control touch control electrode through after overcompensation touching signals calculate position of touch.
In touch screen of the invention short circuit detection method in, by touch control electrode be passed through detection signal and other touch
Interference signal is detected in control electrode, short circuit is there occurs between can accurately determining which touch control electrode, and then avoid short circuit from causing
Ghost point the problems such as, improve touch-control positioning accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of existing touch screen；
Fig. 2 is part section structural representations of the Fig. 1 along AA '；
Fig. 3 is a kind of structural representation of the touch screen of embodiments of the invention in logical detection signal；
Fig. 4 is a kind of structural representation of touch screen in the touch-control stage of embodiments of the invention；
Fig. 5 is the schematic flow sheet of the detection method of short circuit in a kind of touch screen of embodiments of the invention；
Wherein, reference is：1st, lead；2nd, touch control electrode；5th, insulating barrier；51st, via；9th, foreign matter.
Specific embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail to the present invention.
Embodiment 1：
As shown in Figures 3 to 5, the present embodiment provides a kind of detection method of short circuit in touch screen, and it is used for touch screen
In the touch control electrode 2 that is short-circuited detect.
Wherein, the applicable touch screen of above detection method includes lining up multiple touch control electrodes 2 of array, each touch control electrode
2 is corresponding with a lead 1 and be connected with touch chip (not shown) by the lead 1.
That is, a substrate (such as color membrane substrates) of touch screen is provided with multiple touch control electrodes 2 for lining up array, often
Individual touch control electrode 2 connects a port of touch chip by a lead 1.It is provided between touch control electrode 2 and lead 1 absolutely
Edge layer is so that the two insulation, corresponding touch control electrode 2 and lead 1 are connected with each other by the via 51 in insulating barrier.In touch-control
In the stage, touch chip is to the alternating signal that high frequency is passed through in each touch control electrode 2, when there is touch-control to occur, corresponding touch control electrode 2
In can produce touching signals, and detected by touch chip, so that it is determined that going out position of touch.And in display stage, touch chip
Be passed through common electric voltage to each touch control electrode 2, thus touch control electrode 2 can time-sharing multiplex be public electrode (certain touch control electrode 2
To only complete the function of touch-control, signal is not passed through in the display stage, i.e. not time-sharing multiplex).
It can be seen that, touch-control is only capable of achieving by a kind of touch control electrode 2 in the touch screen of the present embodiment, rather than by scanning electricity
Touch-control is realized in sensing between pole and induction electrode, and thus the touch screen is self-tolerant touch screen.Certainly, the detection side of the present embodiment
Method is equally applicable to the touch screen of other forms.
Wherein, due to the gap very little between touch control electrode 2, it is not enough to accommodate whole leads 1, therefore correspond to middle part touch control electrode
2 lead 1 then will necessarily be overlapping with other touch control electrodes 2 to draw, and from from the point of view of making electric capacity uniform, each touch-control draws
The length of line 1 is preferably identical.Thus, touch control electrode 2 will necessarily have overlapping (still insulating certainly) with not corresponding lead 1.
If because the reason such as foreign matter 9 causes insulating barrier to damage, touch control electrode 2 and not corresponding lead 1 may be made to be electrically connected
Connect, that is, make generation short circuit between two touch control electrodes 2, and the detection method of the present embodiment is that can be used to the short-circuit detecting
Come.
Specifically, the detection method of short circuit is comprised the following steps in the touch screen of the present embodiment：
S101, select from touch control electrode 2 at least one and be passed through detection signal thereto.
That is, selecting one or more touch control electrodes 2, the detection for detecting is passed through thereto using touch chip
Signal (such as level pressure signal), and then not messenger in other touch control electrodes 2.
Preferably, above lead 1 be arranged in parallel along column direction, and this step is specially and is only selected in same column touch control electrode 2
Go out one and be passed through detection signal thereto.
As shown in figure 3, lead 1 is preferably what is be arranged in parallel along column direction, such structure is the easiest.Thus, same column
Touch control electrode 2 all can be overlapping with several identical leads 1, and each touch control electrode 2 is electrically connected with a lead 1 therein.
In this case, in synchronization, in a row touch control electrode 2, only thereto is passed through detection signal.
It is furthermore preferred that this step is to select the touch control electrode 2 of same a line and be passed through detection signal thereto respectively.
Obviously, according to requirements above, synchronization, the touch control electrode 2 that can only have in a row leads to detection signal,
Can respectively there is a touch control electrode 2 to lead to detection signal respectively in multiple row, to improve detection efficiency.And in same row is ensured only
In the case of having a touch control electrode 2 to lead to detection signal, most easy mode is simultaneously logical to whole touch control electrodes 2 of same a line
Enter detection signal (i.e. a line touch control electrode 2 from lower-left to upper right oblique line is filled in Fig. 3).So, as long as in turn to each row
Touch control electrode 2 is passed through detection signal, you can complete the detection to whole touch screen.
Certainly, " row ", " OK " alleged in the present embodiment etc., are merely representative of two orthogonal relative directions, its tool
Shape, modes of emplacement of body direction and touch screen etc. are without necessarily relation.
S102, detect and whether export interference signal in other touch control electrodes 2, if detecting interference in certain touch control electrode 2
Signal, it is determined that be short-circuited between the touch control electrode 2 of the touch control electrode 2 and logical detection signal, the two is one group of short-circuiting electrode.
Obviously, if without short circuit, being input into more than in addition to the touch control electrode 2 of detection signal, all should in other touch control electrodes 2
Can't detect any signal；And if can be detected in other touch control electrodes 2 in addition to being input into the touch control electrode 2 of detection signal more than
To signal (i.e. filled in Fig. 3 descend oblique line to the right from upper left a touch control electrode 2), then the signal is necessarily by leading to detection signal
The interference signal conducted through lead 1 of touch control electrode 2, this shows the touch control electrode 2 of logical detection signal and has interference signal
Touch control electrode 2 between mutual conduction, i.e., be short-circuited between the two, be one group of short-circuiting electrode.
Preferably, when lead 1 be arranged in parallel along column direction, this step is the institute of touch control electrode 2 of the logical detection signal of detection
Whether interference signal is exported in other touch control electrodes 2 of row.
Obviously, when lead 1 be arranged in parallel along column direction, occur by lead 1 between the touch control electrode 2 that can only be same column
Short circuit, and can not be short-circuited between the touch control electrode 2 of different lines.Therefore, above step S101 just requires can only have in each column
One touch control electrode 2 leads to detection signal, as long as and whether other touch control electrodes 2 have detection signal i.e. during this step then detects same column
Can.
It is S103, preferred, according to interference signal and the offset of the Strength co-mputation respective sets short-circuiting electrode of detection signal.
As it was previously stated, when a touch control electrode 2 in one group of short-circuiting electrode is passed through detection signal, another touch-control electricity
Interference signal can be produced in pole 2.And because the degree of short circuit is different, therefore the intensity of interference signal and detection signal may not phase
Deng in other words, electric charge can be allocated according to the difference of degree of short circuit in two touch control electrodes 2, and be produced respectively in the two
The signal of raw varying strength, such as intensity of detection signal are 300 (relative value only being represented, without unit), and the intensity of interference signal
Can be solely 100.Therefore, by Analysis interference signal and the intensity difference and/or intensity of detection signal, you can calculate one
Individual offset is simultaneously stored (such as storage in a flash memory), and the offset represents the signal intensity in this group of short-circuiting electrode
Relation, can be used to determine position of touch in subsequent steps.
S104, judge whether to complete detection to all touch control electrodes 2：If if otherwise return to step S101, if enter
Next step.
In S101 to S103 steps, the inspection of the touch control electrode 2 (such as a line touch control electrode 2) to leading to detection signal is completed
Survey, and in order to complete the detection to whole touch screen, then also can return to S101 steps, select new (such as another row of touch control electrode 2
Touch control electrode 2) detection signal is passed through, untill being all passed through detection signal to all touch control electrodes 2.
S105, in the touch-control stage after determining the touch control electrode 2 being short-circuited, if in one group of short-circuiting electrode produce touch
Control signal, then detect whether the touch control electrode 2 around two touch control electrodes 2 therein has touching signals respectively, and determines surrounding
The touch control electrode 2 that touch control electrode 2 has touching signals is the touch control electrode 2 that touch-control occurs, it is determined that surrounding touch control electrode 2 is believed without touch-control
Number touch control electrode 2 to there is no the touch control electrode 2 of touch-control.
That is, after each group short-circuiting electrode is determined, normal display and touch-control can be proceeded by, in the touch-control stage
In, can to can touch control electrode 2 be passed through high frequency alternating signal and detect the touching signals that wherein produce.
As it was previously stated, when a touch control electrode 2 in one group of short-circuiting electrode is touched, in another touch control electrode 2
Also touching signals produce.Now, it has been determined that the two touch control electrodes 2 are one group of short-circuiting electrode, then wherein necessarily have one
Signal in individual touch control electrode 2 is the error signal caused by short circuit, should be influenceed to eliminate.As shown in figure 4, in positive reason
Under condition, touch-control necessarily covers certain scope, can be (i.e. multiple above in Fig. 4 to fill pits in multiple adjacent touch control electrodes 2
Touch control electrode 2) can produce touching signals.Therefore, can detect respectively it is determined above go out be short-circuited two touch-control electricity
Whether other touch control electrodes 2 around pole 2 have touching signals, if so, then representing that the touching signals in the touch control electrode 2 are strictly
(i.e. there is that touch control electrode 2 of foreign matter 9 top in Fig. 4, and touch control electrode 2 also has touching signals around it) caused by touch-control,
If nothing, then it represents that the touching signals in the touch control electrode 2 are that the error signal caused by short circuit (is i.e. individually filled out below in Fig. 4
Fill the touch control electrode 2 of pit.Touch control electrode 2 around it is without touching signals).
It is S106, preferred, according to the corresponding offset of this group of short-circuiting electrode, to the touch-control of the touch control electrode 2 that touch-control occurs
Signal is compensated.
Define the real touch control electrode 2 that touch-control occurs in step S105, but due to the influence of short circuit, so when this is touched
The intensity of touching signals is different from due touching signals intensity when not being short-circuited in control electrode 2, can give determination position of touch
Impact.Therefore, using the offset of this group of short-circuiting electrode determined in step S103, with reference in this group of short-circuiting electrode
Touching signals intensity in two touch control electrodes 2, compensates calculating (as redistributed signal intensity in proportion, or according to difference
Value enhancing touching signals), so as to show that the touch control electrode 2 of the generation touch-control due touching signals in not short circuit (are compensated
Touching signals afterwards).
S107, the touching signals calculating position of touch according to the touch control electrode 2 that touch-control occurs.
That is, after the touch control electrode 2 for actually occurring touch-control is determined, you can according to its touching signals (certainly also
Touching signals including touch control electrode around it 2) calculate and determine actual position of touch, touch-control is realized, and do not occur above
Touching signals in the touch control electrode 2 of touch-control are not considered then (in the compensation calculation before being possibly used for certainly).
Obviously, if having carried out the compensation operation of S106 before, this step should be according to the touch control electrode 2 that touch-control occurs
Through after overcompensation touching signals calculate position of touch so that realize more accurately touch-control positioning.
Specifically, detection part (i.e. S101 to the S104 steps in the touch screen of the present embodiment in the detection method of short circuit
Suddenly), can be carried out as quality inspection step before touch screen dispatches from the factory, or, also can regularly carry out in use or root
Require to carry out according to user；And in the touch-control in a period of time after the completion of the detection part, you can according to above S105 extremely
The mode of S107 steps eliminates the influence of short circuit, realizes more accurately touch-control.
In the touch screen of the present embodiment in the detection method of short circuit, detection signal is passed through and at it by touch control electrode 2
Interference signal is detected in its touch control electrode 2, short circuit is there occurs between can accurately determining which touch control electrode 2, and then avoid short
The problems such as ghost point that road is caused, improve the accuracy of touch-control positioning.
Embodiment 2：
The present embodiment provides a kind of touch screen.The touch screen can be mobile phone, panel computer, television set, display, notebook
Any product with display function and touch controllable function such as computer, DPF, navigator.
Specifically, the touch screen of the present embodiment includes lining up multiple touch control electrodes of array, each touch control electrode with one
Lead correspondence is simultaneously connected by the lead with touch chip；And touch screen also includes：
Selecting module, for selecting at least one from touch control electrode and being passed through detection signal thereto；
Whether detection module, export interference signal in other touch control electrodes for detecting, if being detected in certain touch control electrode
To interference signal, it is determined that be short-circuited between the touch control electrode of the touch control electrode and logical detection signal, the two is one group of short circuit electricity
Pole.
Preferably, lead be arranged in parallel along column direction；Selecting module is used to only select one in same column touch control electrode simultaneously
Detection signal is passed through thereto；Detection module is used in other touch control electrodes of touch control electrode column for detect logical detection signal
Whether interference signal is exported.
It is furthermore preferred that selecting module is used to select the touch control electrode of same a line and be passed through detection signal thereto respectively.
Preferably, the touch screen of the present embodiment also includes：Electrode determining module, for determining the touch-control being short-circuited
Have in the touch-control stage after electrode when producing touching signals in one group of short-circuiting electrode, two touch control electrode weeks therein are detected respectively
Whether the touch control electrode enclosed has touching signals, and the touch control electrode for determining surrounding touch control electrode and having touching signals is that touch-control occurs
Touch control electrode, it is determined that touch control electrode of the surrounding touch control electrode without touching signals is that the touch control electrode of touch-control does not occur；Computing module,
Touching signals for the touch control electrode of the generation touch-control determined according to electrode determining module calculate position of touch.
It is furthermore preferred that the touch screen of the present embodiment also includes：Compensation value calculation module, for being detected in certain touch control electrode
To after interference signal, according to interference signal and the offset of the short-circuiting electrode of the Strength co-mputation respective sets of detection signal；Compensation mould
Block, after the touch control electrode that touch-control occurs is determined in electrode determining module, according to the corresponding offset of this group of short-circuiting electrode,
Touching signals to the touch control electrode that touch-control occurs are compensated；Computing module is used for the generation determined according to electrode determining module
The touch control electrode of touch-control through after overcompensation touching signals calculate position of touch.
In the detection method of the executable above of the touch screen of the present embodiment, so as to which touch control electrode can be determined accurately
Between there occurs short circuit, it is to avoid short circuit cause ghost point the problems such as, improve touch-control positioning accuracy.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary implementation for using
Mode, but the invention is not limited in this.For those skilled in the art, essence of the invention is not being departed from
In the case of god and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. in a kind of touch screen short circuit detection method, the touch screen includes lining up multiple touch control electrodes of array, and each is touched
Control electrode is corresponding with a lead and is connected with touch chip by the lead；Characterized in that, short circuit in the touch screen
Detection method includes：
At least one is selected from touch control electrode and detection signal is passed through thereto；
Detect and whether export interference signal in other touch control electrodes, if detecting interference signal in certain touch control electrode, it is determined that
It is short-circuited between the touch control electrode of the touch control electrode and logical detection signal, the two is one group of short-circuiting electrode.
2. in touch screen according to claim 1 short circuit detection method, it is characterised in that
The lead be arranged in parallel along column direction；
It is described at least one is selected from touch control electrode and detection signal is passed through thereto include：Only selected in same column touch control electrode
Go out one and be passed through detection signal thereto；
Whether exporting interference signal in described other touch control electrodes of detection includes：The touch control electrode column of the logical detection signal of detection
Other touch control electrodes in whether export interference signal.
3. in touch screen according to claim 2 short circuit detection method, it is characterised in that it is described from touch control electrode select
Going out at least one and being passed through detection signal thereto includes：
Select the touch control electrode of same a line and to it each lead into detection signal respectively.
4. in touch screen according to claim 1 short circuit detection method, it is characterised in that determining what is be short-circuited
In the touch-control stage after touch control electrode, also include：
If producing touching signals in one group of short-circuiting electrode, detect that the touch control electrode around two touch control electrodes therein is respectively
It is no to have touching signals, and the touch control electrode for determining surrounding touch control electrode and having touching signals is the touch control electrode that touch-control occurs, it is determined that
Touch control electrode of the surrounding touch control electrode without touching signals is that the touch control electrode of touch-control does not occur；
Touching signals according to the touch control electrode that touch-control occurs calculate position of touch.
5. in touch screen according to claim 4 short circuit detection method, it is characterised in that
After detecting interference signal in certain touch control electrode, also include：According to the Strength co-mputation phase of interference signal and detection signal
The offset of short-circuiting electrode should be organized；
After the touch control electrode that touch-control occurs is determined, also include：According to the corresponding offset of this group of short-circuiting electrode, to the hair
The touching signals of the touch control electrode of raw touch-control are compensated；
The touching signals according to the touch control electrode that touch-control occurs calculate position of touch to be included：According to the touch-control electricity that touch-control occurs
Pole through after overcompensation touching signals calculate position of touch.
6. a kind of touch screen, its multiple touch control electrode for including lining up array, each touch control electrode is corresponding with a lead and leads to
The lead is crossed to be connected with touch chip；Characterized in that, the touch screen also includes：
Selecting module, for selecting at least one from touch control electrode and being passed through detection signal thereto；
Whether detection module, export interference signal in other touch control electrodes, if being detected in certain touch control electrode dry for detecting
Disturb signal, it is determined that be short-circuited between the touch control electrode of the touch control electrode and logical detection signal, the two is one group of short-circuiting electrode.
7. touch screen according to claim 6, it is characterised in that
The lead be arranged in parallel along column direction；
The selecting module is used to only select one in same column touch control electrode and is passed through detection signal thereto；
Whether the detection module is used for exporting dry in other touch control electrodes for the touch control electrode column for detecting logical detection signal
Disturb signal.
8. touch screen according to claim 7, it is characterised in that
The selecting module is used to select the touch control electrode of same a line and be passed through detection signal thereto respectively.
9. touch screen according to claim 6, it is characterised in that also include：
Electrode determining module, for there is one group of short-circuiting electrode in the touch-control stage after determining the touch control electrode being short-circuited in
When producing touching signals, detect whether the touch control electrode around two touch control electrodes therein there are touching signals respectively, and determine
The touch control electrode that surrounding touch control electrode has touching signals is the touch control electrode that touch-control occurs, it is determined that surrounding touch control electrode is believed without touch-control
Number touch control electrode be that the touch control electrode of touch-control does not occur；
Computing module, the touching signals for the touch control electrode of the generation touch-control determined according to electrode determining module calculate touch-control position
Put.
10. touch screen according to claim 9, it is characterised in that also include：
Compensation value calculation module, after detecting interference signal in certain touch control electrode, according to interference signal and detection signal
Strength co-mputation respective sets short-circuiting electrode offset；
Compensating module, after the touch control electrode that touch-control occurs is determined in electrode determining module, according to this group of short-circuiting electrode pair
The offset answered, the touching signals to the touch control electrode of the generation touch-control are compensated；
The computing module is for the touch control electrode of the generation touch-control according to the determination of electrode determining module through touching after overcompensation
Control signal of change position of touch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710002186.8A CN106771817B (en) | 2017-01-03 | 2017-01-03 | Short-circuit detection method in touch screen, touch screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002186.8A CN106771817B (en) | 2017-01-03 | 2017-01-03 | Short-circuit detection method in touch screen, touch screen |
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| CN106771817B CN106771817B (en) | 2019-04-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230443A (en) * | 2017-06-30 | 2017-10-03 | 武汉华星光电技术有限公司 | In-cell touch panel test circuit |
| CN109541365A (en) * | 2018-11-01 | 2019-03-29 | 深圳市德名利电子有限公司 | A kind of capacitance plate short circuit test method, capacitance plate and mobile terminal |
| CN109815072A (en) * | 2019-01-08 | 2019-05-28 | 深圳市德名利电子有限公司 | A kind of touch device and touch control display apparatus |
| CN112835475A (en) * | 2021-03-22 | 2021-05-25 | 厦门天马微电子有限公司 | Detection method, display panel, driving chip and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109688A (en) * | 2009-12-29 | 2011-06-29 | 上海天马微电子有限公司 | Liquid crystal display panel, array substrate and driving line defect detection method |
| CN103137049A (en) * | 2011-11-25 | 2013-06-05 | 乐金显示有限公司 | Display panel for display device and method for detecting defects of signal lines for display devices |
| CN103926496A (en) * | 2013-01-10 | 2014-07-16 | 上海海尔集成电路有限公司 | Test apparatus and method for touch screen module, and touch screen module |
| US20150346865A1 (en) * | 2014-06-02 | 2015-12-03 | Electronics And Telecommunications Research Institute | Touch screen panel |
| CN105159511A (en) * | 2015-09-01 | 2015-12-16 | 武汉华星光电技术有限公司 | Self-contained embedded touch panel and detection method |
| CN105786246A (en) * | 2016-02-05 | 2016-07-20 | 厦门天马微电子有限公司 | Touch control structure, touch control panel, VT testing method, display device and control method |
| CN105955524A (en) * | 2016-04-20 | 2016-09-21 | 厦门天马微电子有限公司 | Touch screen and detection method thereof, and touch display |
-
2017
- 2017-01-03 CN CN201710002186.8A patent/CN106771817B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109688A (en) * | 2009-12-29 | 2011-06-29 | 上海天马微电子有限公司 | Liquid crystal display panel, array substrate and driving line defect detection method |
| CN103137049A (en) * | 2011-11-25 | 2013-06-05 | 乐金显示有限公司 | Display panel for display device and method for detecting defects of signal lines for display devices |
| CN103926496A (en) * | 2013-01-10 | 2014-07-16 | 上海海尔集成电路有限公司 | Test apparatus and method for touch screen module, and touch screen module |
| US20150346865A1 (en) * | 2014-06-02 | 2015-12-03 | Electronics And Telecommunications Research Institute | Touch screen panel |
| CN105159511A (en) * | 2015-09-01 | 2015-12-16 | 武汉华星光电技术有限公司 | Self-contained embedded touch panel and detection method |
| CN105786246A (en) * | 2016-02-05 | 2016-07-20 | 厦门天马微电子有限公司 | Touch control structure, touch control panel, VT testing method, display device and control method |
| CN105955524A (en) * | 2016-04-20 | 2016-09-21 | 厦门天马微电子有限公司 | Touch screen and detection method thereof, and touch display |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230443A (en) * | 2017-06-30 | 2017-10-03 | 武汉华星光电技术有限公司 | In-cell touch panel test circuit |
| WO2019000568A1 (en) * | 2017-06-30 | 2019-01-03 | 武汉华星光电技术有限公司 | Embedded touch screen testing circuit |
| CN107230443B (en) * | 2017-06-30 | 2019-10-25 | 武汉华星光电技术有限公司 | In-cell touch panel tests circuit |
| CN109541365A (en) * | 2018-11-01 | 2019-03-29 | 深圳市德名利电子有限公司 | A kind of capacitance plate short circuit test method, capacitance plate and mobile terminal |
| CN109815072A (en) * | 2019-01-08 | 2019-05-28 | 深圳市德名利电子有限公司 | A kind of touch device and touch control display apparatus |
| CN109815072B (en) * | 2019-01-08 | 2022-05-27 | 深圳市德明利技术股份有限公司 | Touch device and touch display device |
| CN112835475A (en) * | 2021-03-22 | 2021-05-25 | 厦门天马微电子有限公司 | Detection method, display panel, driving chip and display device |
| WO2022198774A1 (en) * | 2021-03-22 | 2022-09-29 | 厦门天马微电子有限公司 | Detection method, display panel, driving chip, and display apparatus |
| US12026332B2 (en) | 2021-03-22 | 2024-07-02 | Xiamen Tianma Micro-Electronics Co., Ltd. | Detection method, display panel, driver chip and display device |
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