CN104281323B - A kind of detection method of touch-control display panel - Google Patents
A kind of detection method of touch-control display panel Download PDFInfo
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- CN104281323B CN104281323B CN201410525585.9A CN201410525585A CN104281323B CN 104281323 B CN104281323 B CN 104281323B CN 201410525585 A CN201410525585 A CN 201410525585A CN 104281323 B CN104281323 B CN 104281323B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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Abstract
The invention discloses a kind of detection method of touch-control display panel, touch-control display panel includes：Public electrode, each public electrode is electrically connected to a lead, and all public electrodes are divided into first to N electrode group；The detection method of touch-control display panel includes：First frame：First current potential is applied to all public electrodes so that whole touch-control display panel shows the first color；Second frame：Second current potential is applied to first electrode group, remaining electrode group is not applied in the second current potential so that first electrode group region shows the second color, and remaining electrode group region shows the first color；Wherein, in first electrode group region, open circuit occurs for the lead for the public electrode being shown as corresponding to the region of the first color；In remaining electrode group region, short circuit occurs for the lead for the public electrode being shown as corresponding to the region of the second color；By this rule, detected to first to N electrode group, with the position for the lead for determining to occur open circuit and/or short circuit.
Description
Technical field
The present invention relates to technical field of touch-control display, more particularly to a kind of detection method of touch-control display panel.
Background technology
At present, touch control display apparatus becomes more and more popular, and touch control display apparatus generally comprises touch-control display panel, however, real
When border produces touch-control display panel, discovery, which exists, is difficult to detect that the breaking and/or short-circuit of touch-control lead is asked on touch-control display panel
Topic.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of detection method of touch-control display panel.
A kind of detection method of touch-control display panel, the touch-control display panel includes：
Multiple public electrodes, each public electrode is electrically connected to a lead；Wherein,
During display, the public electrode is applied in common electric voltage；
During touch control detection, the public electrode is applied in touching signals by the lead, to determine the seat of touch location
Mark；
All public electrodes are divided into first to N electrode group, when detecting the touch-control display panel, same electrode group
Interior all public electrodes are applied in same picture detection signal；
The detection method of the touch-control display panel includes：
First frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show
First color；
Second frame：Second current potential is applied to the first electrode group, remaining electrode group is not applied in the second current potential, to cause
The first electrode group region shows the second color, and remaining electrode group region keeps showing the first color；Wherein, exist
In first electrode group region, open circuit occurs for the lead for the public electrode being shown as corresponding to the region of the first color；At it
In remaining electrode group region, short circuit occurs for the lead for the public electrode being shown as corresponding to the region of the second color；
By this rule, gradually detected to first to N electrode group, to determine the lead for occurring open circuit and/or short circuit
Position；
Wherein, N is the integer more than or equal to 2.
The embodiment of the present invention is at least up to one of following beneficial effect：All public electrodes are applied in the first frame
Plus first current potential, to cause the whole touch-control display panel to show the first color；In the second frame, to the first electrode group
Apply the second current potential, remaining electrode group is not applied in the second current potential, to cause the first electrode group region to show second
Color, remaining electrode group region keeps showing the first color；Wherein, in first electrode group region, it is shown as
Open circuit occurs for the lead of the public electrode corresponding to the region of one color；In remaining electrode group region, second is shown as
Short circuit occurs for the lead of the public electrode corresponding to the region of color；And by this rule, gradually carried out to first to N electrode group
Detection, it may be determined that occur the position of the lead of open circuit and/or short circuit.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of part-structure schematic diagram for touch-control display panel that the embodiment of the present invention one is provided；
Fig. 2 is the part-structure schematic diagram for another touch-control display panel that the embodiment of the present invention one is provided；
Fig. 3 is a kind of part-structure schematic diagram for touch-control display panel that the embodiment of the present invention two is provided；
Fig. 4 is the part-structure schematic diagram for another touch-control display panel that the embodiment of the present invention two is provided；
Fig. 5 is a kind of part-structure schematic diagram for touch-control display panel that the embodiment of the present invention three is provided；
Fig. 6 is the part-structure schematic diagram for another touch-control display panel that the embodiment of the present invention three is provided；
Fig. 7 is a kind of detection picture view for touch-control display panel that the embodiment of the present invention four is provided；
Fig. 8 is a kind of detection picture view for touch-control display panel that the embodiment of the present invention five is provided.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step it is described in detail, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Shown it should be noted that the touch-control display panel involved by following examples of the present invention can be embedded touch
Panel or half In-cell touch display panel, the present invention are not limited specifically this.In the embodiment of the present invention
Such as " X is located between Y and Z " " between " hierarchical relationship is only represented, do not necessarily mean that it is direct contact.
Embodiment one
The embodiment of the present invention provides a kind of detection method of touch-control display panel, and touch-control display panel includes：
Multiple public electrodes, each public electrode is electrically connected to a lead；Wherein,
During display, public electrode is applied in common electric voltage；
During touch control detection, public electrode is applied in touching signals by lead, to determine the coordinate of touch location；
All public electrodes are divided into first to N electrode group, all in same electrode group during detection touch-control display panel
Public electrode is applied in same picture detection signal；
The detection method of touch-control display panel includes：
First frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel to show the first color；
Second frame：Second current potential is applied to first electrode group, remaining electrode group is not applied in the second current potential, to cause first
Electrode group region shows the second color, and remaining electrode group region keeps showing the first color；Wherein, in first electrode
In group region, open circuit occurs for the lead for the public electrode being shown as corresponding to the region of the first color；In remaining electrode group
In region, short circuit occurs for the lead for the public electrode being shown as corresponding to the region of the second color；
By this rule, gradually detected to first to N electrode group, to determine the lead for occurring open circuit and/or short circuit
Position；
Wherein, N is the integer more than or equal to 2.It is described in detail below：
N=2, that is, all public electrodes are divided into first to second electrode group (not shown), as shown in figure 1, first electrode
Group includes multiple first public electrode A, and second electrode group includes multiple second public electrode B, in a first direction and second direction
On, the first public electrode A phases are adjacent with the second public electrode B to be alternately arranged；
The detection method of touch-control display panel 1 includes：
First frame：To all public electrodes, i.e., all first public electrode A and all second public electrode B are applied with the
One current potential, to cause whole touch-control display panel 1 to show the first color；
Second frame：Second current potential, second electrode group (the second common electrical are applied to first electrode group (the first public electrode A)
Pole B) the second current potential is not applied in, to cause first electrode group (the first public electrode A) region to show the second color, second
Electrode group (the second public electrode B) region keeps showing the first color；Wherein, in first electrode group (the first public electrode
A) in region, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；In second electrode group
In (the second public electrode B) region, the lead 2 of the public electrode being shown as corresponding to the region of the second color occurs short
Road；
3rd frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
4th frame：Second current potential, first electrode group (the first common electrical are applied to second electrode group (the second public electrode B)
Pole A) the second current potential is not applied in, to cause second electrode group (the second public electrode B) region to show the second color, first
Electrode group (the first public electrode A) region keeps showing the first color；Wherein, in second electrode group (the second public electrode
B) in region, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；In first electrode group
In (the first public electrode A) region, the lead 2 of the public electrode being shown as corresponding to the region of the second color occurs short
Road.
In other words, when the first color is black, and the second color is white,
First frame：The first public electrode A and the second public electrode B be connected to (application) show black picture (the first color, it is black
Color) the first current potential on；
Second frame：First public electrode A is connected to the second current potential that (application) shows white picture (the second color, white)
On, the second public electrode B does not connect and (not applied) the second current potential；
So, it can be determined that, when the first public electrode location A has the region for showing black picture, then for disconnection place (i.e.
Corresponding lead is open circuit)；Second public electrode B location has the region for showing white picture, then the place for short circuit is (i.e. corresponding
Lead is short circuit)；
3rd frame：First public electrode A and the second public electrode B are connected to the first current potential that (application) shows black picture
On；
4th frame：Second public electrode B is connected to (application) to show on the second current potential of white picture, the first public electrode A
Do not connect and (do not apply) the second current potential；
So, it can be determined that, when the second public electrode B location has the region for showing black picture, then for disconnection place (i.e.
Corresponding lead is open circuit)；First public electrode location A has the region for showing white picture, then the place for short circuit is (i.e. corresponding
Lead is short circuit)；
Similarly, when the first color for white, and the second color be black when, also according to this rule, can accordingly detect
Short circuit and the position (region) of short circuit, this is no longer going to repeat them for the present embodiment.
Touch-control display panel 1 also includes pixel electrode (not shown) and substrate (not shown), public electrode and pixel electrode
The side of substrate is respectively positioned on, wherein, public electrode is located between pixel electrode and substrate, or, pixel electrode is located at common electrical
Between pole and substrate so that projection of 1 pixel electrode in substrate is at least covered in projection of the public electrode in substrate.
Further, generally, lightness is also in the brightness of color, refers to the light levels of color, according to Munsell value body
System, the lightness of black is 0, during white lightness is 10, the present embodiment, the absolute value of the luminosity equation of the first color and the second color
More than 1.Specifically, the first color is black, the second color is white；Or, the first color is white, and the second color is black
Color, the absolute value of the luminosity equation based on the first color and the second color is more than or equal to 1 condition, in other embodiments, first
Color can be red, and the second color is green, and the present embodiment does not do any limitation to this, only need to meet the first color and second
The absolute value of the luminosity equation of color is more than or equal to 1.
It is brilliant by first that touch-control display panel 1 also includes the first transistor T1 and second transistor T2, the first public electrode A
Body pipe T1 is connected to the first signal S1, the second public electrode B and is connected to secondary signal S2 by second transistor T2,
Wherein, the first transistor T1 and second transistor T2 grid are connected to same control signal SW, when first public
When electrode A is not applied in the second current potential, the first transistor T1 drain electrode floating；When the second public electrode B is not applied in the second electricity
During position, second transistor T2 drain electrode floating；
Or, as shown in Fig. 2 the first transistor T1 and second transistor T2 grid are connected to the first control signal
SW1 and the second control signal SW2, when the first public electrode A is not applied in the second current potential, the first control signal SW1 controls the
One transistor T1 disconnects；When the second public electrode B is not applied in the second current potential, the second control signal SW2 controls the second crystal
Pipe T2 disconnects.
The embodiment of the present invention is at least up to one of following beneficial effect：All public electrodes are applied in the first frame
Plus first current potential, to cause the whole touch-control display panel to show the first color；In the second frame, to the first electrode group
(the first public electrode) applies the second current potential, and remaining electrode group is not applied in the second current potential, to cause the first electrode group (the
One public electrode) region shows the second color, remaining electrode group region keeps showing the first color；Wherein,
In one electrode group (the first public electrode) region, the lead hair for the public electrode being shown as corresponding to the region of the first color
Raw open circuit；In remaining electrode group region, the lead for the public electrode being shown as corresponding to the region of the second color occurs
Short circuit；And by this rule, gradually detected to first to N electrode group, it may be determined that occur the lead of open circuit and/or short circuit
Position.
Embodiment two
Embodiment two is repeated no more with the identical part of embodiment one, and the distinctive points of embodiment two and embodiment one are：N
=3,
All public electrode (not shown) are divided into first to the 3rd electrode group (A, B, C) (not shown), as shown in figure 3, the
One electrode group includes multiple first public electrode A, and second electrode group includes multiple second public electrode B, and the 3rd electrode group includes
Multiple 3rd public electrode C, in a first direction, the first public electrode A phases are adjacent with the second public electrode B to be alternately arranged, the
Three public electrode C repeated arrangements, in a second direction, the first public electrode A phases are adjacent with the 3rd public electrode C to be alternately arranged,
And second public electrode B phases adjacent with the 3rd public electrode C be alternately arranged；
The detection method of touch-control display panel 1 includes：
First frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
Second frame：Apply the second current potential to first electrode group (the first public electrode A), second and the 3rd electrode group (B, C)
The second current potential is not applied in, to cause first electrode group (the first public electrode A) region to show the second color, second and
Three electrode groups (B, C) region keeps showing the first color；Wherein, in first electrode group (the first public electrode A) location
In domain, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；In second and the 3rd electrode group
In (B, C) region, short circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the second color；
3rd frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
4th frame：Apply the second current potential to second electrode group (the second public electrode B), first and the 3rd electrode group (A, C)
The second current potential is not applied in, to cause second electrode group (the second public electrode B) region to show the second color, first and
Three electrode groups (A, C) region keeps showing the first color；Wherein, in second electrode group (the second public electrode B) location
In domain, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；In first and the 3rd electrode group
In (A, C) region, short circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the second color；
5th frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
6th frame：Second current potential, the first and second electrode groups (A, B) are applied to the 3rd electrode group (the 3rd public electrode C)
The second current potential is not applied in, to cause the 3rd electrode group (the 3rd public electrode C) region to show the second color, first and
Two electrode groups (A, B) region keeps showing the first color；Wherein, in the 3rd electrode group (the 3rd public electrode C) location
In domain, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；In the first and second electrode groups
In (A, B) region, short circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the second color.
In other words, when the first color is black, and the second color is white,
First frame：First public electrode A and the second public electrode B, the 3rd public electrode C are connected to the black picture of (application) display
On first current potential in face
Second frame：First public electrode A is connected to (application) to show on the second current potential of white picture, the second public electrode B
The second current potential is not connect and (is not applied) with the 3rd public electrode C；
So, it can be determined that, when the first public electrode location A has the region for showing black picture, then for disconnection place (i.e.
Corresponding lead is open circuit)；Second public electrode B and the 3rd public electrode location of C have the region for showing white picture, then are short circuit
Place (i.e. corresponding lead for short circuit)；
3rd frame：First public electrode A and the second public electrode B, the 3rd public electrode C are connected to the black picture of (application) display
On first current potential in face；
4th frame：Second public electrode B is connected to (application) to show on the second current potential of white picture, the first public electrode A
The second current potential is not connect and (is not applied) with the 3rd public electrode C；
So, it can be determined that, when the second public electrode B location has the region for showing black picture, then for disconnection place (i.e.
Corresponding lead is open circuit)；First public electrode A and the 3rd public electrode location of C have the region for showing white picture, then are short circuit
Place (i.e. corresponding lead for short circuit)；
5th frame：First public electrode A and the second public electrode B, the 3rd public electrode C are connected to the black picture of (application) display
On first current potential in face；
6th frame：3rd public electrode C is connected to (application) to show on the second current potential of white picture, the first public electrode A
The second current potential is not connect and (is not applied) with the second public electrode B；
So, it can be determined that, when the 3rd public electrode location of C has the region for showing black picture, then for disconnection place (i.e.
Corresponding lead is open circuit)；First public electrode A and the second public electrode B location have the region for showing white picture, then are short circuit
Place (i.e. corresponding lead for short circuit)；
Similarly, when the first color for white, and the second color be black when, also according to this rule, can accordingly detect
Short circuit and the position (region) of short circuit, this is no longer going to repeat them for the present embodiment.
Touch-control display panel 1 also includes the first transistor T1, second transistor T2 and third transistor T3, the first common electrical
Pole A is connected to the first signal S1, the second public electrode B by the first transistor T1 and is connected to the second letter by second transistor T2
Number S2, three public electrodes are connected to the 3rd signal S3 by third transistor T3,
Wherein, the first transistor T1, second transistor T2 and third transistor T3 grid are connected to same control signal
SW, when the first public electrode A is not applied in the second current potential, the first transistor T1 drain electrode floating；When the second public electrode B not
When being applied in the second current potential, second transistor T2 drain electrode floating；When the 3rd public electrode C is not applied in the second current potential, the
Three transistor T3 drain electrode floating；
Or, as shown in figure 4, the first transistor T1, second transistor T2 and third transistor T3 grid are connected respectively
In the first control signal SW1, the second control signal SW2 and the 3rd control signal SW3, when the first public electrode A is not applied in
During two current potentials, the first control signal SW1 control the first transistors T1 disconnects；When the second public electrode B is not applied in the second current potential
When, the second control signal SW2 control second transistors T2 disconnects；When the 3rd public electrode C is not applied in the second current potential, the 3rd
Control signal SW3 control third transistor T3 disconnects.
Embodiment three
Embodiment two is repeated no more with the identical part of embodiment one, and the distinctive points of embodiment two and embodiment one are：N
=4, all public electrodes are divided into first to second electrode group,
As shown in figure 5, first electrode group includes multiple first public electrode A, it is public that second electrode group includes multiple second
Electrode B, the 3rd electrode group includes multiple 3rd public electrode C, and the 4th electrode group includes multiple 4th public electrode D, with first
Repeat unit is arranged as to the 4th public electrode (A, B, C, D) into two rows two row, touch-control display panel includes multiple into array row
The repeat unit of row；
The detection method of touch-control display panel 1 includes：
First frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
Second frame：Second current potential, the second to the 4th electrode are applied to first electrode group (i.e. to all first public electrode A)
Group (A, B, C, D) is not applied in the second current potential, to cause first electrode group (the first public electrode A) region to show the second color
Coloured silk, second to the 4th electrode group (A, B, C, D) region keeps showing the first color；Wherein, in first electrode group, (first is public
Common electrode A) in region, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；Second
Into the 4th electrode group (A, B, C, D) region, the lead 2 for the public electrode being shown as corresponding to the region of the second color is sent out
Raw short circuit；
3rd frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
4th frame：Second current potential, the first, third and fourth electrode group are applied to second electrode group (the second public electrode B)
(A, C, D) is not applied in the second current potential, to cause second electrode group (the second public electrode B) region to show the second color,
Firstth, the third and fourth electrode group (A, C, D) region keeps showing the first color；Wherein, in second electrode group, (second is public
Common electrode B) in region, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；
First, in the third and fourth electrode group (A, C, D) region, the public electrode being shown as corresponding to the region of the second color draws
Short circuit occurs for line 2；
5th frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
6th frame：Apply the second current potential to the 3rd electrode group (the 3rd public electrode C), first, second and the 4th electrode group
(A, B, D) is not applied in the second current potential, to cause second electrode group (the second public electrode B) region to show the second color,
First, second and the 4th electrode group (A, B, D) region keep show the first color；Wherein, in second electrode group, (second is public
Common electrode B) in region, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；
First, second and the 4th in electrode group (A, B, D) region, and the public electrode being shown as corresponding to the region of the second color draws
Short circuit occurs for line 2；
7th frame：First current potential is applied to all public electrodes, to cause whole touch-control display panel 1 to show the first color
It is color；
8th frame：To the 4th electrode group (the 4th public electrode D) apply the second current potential, the first to the 3rd electrode group (A, B,
C) be not applied in the second current potential, to cause the 4th electrode group (the 4th public electrode D) region to show the second color, first to
3rd electrode group (A, B, C) region keeps showing the first color；Wherein, in the 4th electrode group (the 4th public electrode D) institute
In the zone, open circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the first color；In the first to the 3rd electrode
In group (A, B, C) region, short circuit occurs for the lead 2 for the public electrode being shown as corresponding to the region of the second color.
In other words, when the first color is black, and the second color is white,
The detection method of touch-control display panel 1 is：
First frame：First to fourth public electrode (A, B, C, D) is connected to the first current potential that (application) shows black picture
On, that is, now, whole touch-control display panel 1 is that completely black state is shown；
Second frame：First public electrode A and the 3rd public electrode C are connected to the second current potential that (application) shows white picture
On, the second public electrode B and the 4th public electrode D do not connect and (not applied) the second current potential；So, it can be determined that, when first public
Electrode A and the 3rd public electrode location of C have the region for showing black picture, then for the place of disconnection, (i.e. corresponding lead is disconnected
Road)；There is the region for showing white picture second public electrode B and the 4th public electrode D positions, then (are corresponded to for the place of short circuit
Lead for short circuit)；
3rd frame：First to fourth public electrode (A, B, C, D) is connected to (application) to show on the first current potential of black picture；
4th frame：Second public electrode B and the 4th public electrode D are connected to the second current potential that (application) shows white picture
On, the first public electrode A and the 3rd public electrode C do not connect and (not applied) the second current potential；So, it can be determined that, when second public
There is the region for showing black picture electrode B and the 4th public electrode D positions, then for the place of disconnection, (i.e. corresponding lead is disconnected
Road)；First public electrode A and the 3rd public electrode location of C have the region for showing white picture, then (are corresponded to for the place of short circuit
Lead for short circuit)；
5th frame：First to fourth public electrode (A, B, C, D) is connected to (application) to show on the first current potential of black picture；
6th frame：First public electrode A and the second public electrode B are connected to the second current potential that (application) shows white picture
On, the 3rd public electrode C and the 4th public electrode D do not connect and (not applied) the second current potential；So, it can be determined that, when first public
Electrode A and the second public electrode B location have the region for showing black picture, then for the place of disconnection, (i.e. corresponding lead is disconnected
Road)；There is the region for showing white picture 3rd public electrode C and the 4th public electrode D positions, then (are corresponded to for the place of short circuit
Lead for short circuit)；
7th frame：First to fourth public electrode (A, B, C, D) is connected to (application) to show on the first current potential of black picture；
8th frame：3rd public electrode C and the 4th public electrode D are connected to the second current potential that (application) shows white picture
On, the first public electrode A and the second public electrode B do not connect and (not applied) the second current potential；So, it can be determined that, when the 3rd public
There is the region for showing black picture electrode C and the 4th public electrode D positions, then for the place of disconnection, (i.e. corresponding lead is disconnected
Road)；First public electrode A and the second public electrode B location have the region for showing white picture, then (are corresponded to for the place of short circuit
Lead for short circuit)；
Similarly, when the first color for white, and the second color be black when, also according to this rule, can accordingly detect
Short circuit and the position (region) of short circuit, this is no longer going to repeat them for the present embodiment.
Touch-control display panel 1 also includes the first transistor T1, second transistor T2, third transistor T3 and the 4th transistor
T4, the first public electrode A are connected to the first signal S1, the second public electrode B by the first transistor T1 and pass through second transistor
T2 is connected to secondary signal S2, and three public electrodes are connected to the 3rd signal S3 by third transistor T3, and four public electrodes pass through
4th transistor T4 is connected to the 4th signal S4,
Wherein, the first transistor T1, second transistor T2, third transistor T3 and the 4th transistor T4 grid are connected to
Same control signal SW, when the first public electrode A is not applied in the second current potential, the first transistor T1 drain electrode floating；When
When two public electrode B are not applied in the second current potential, second transistor T2 drain electrode floating；When the 3rd public electrode C is not applied in
During the second current potential, third transistor T3 drain electrode floating；When the 4th public electrode D is not applied in the second current potential, the 4th crystal
Pipe T4 drain electrode floating；
Or, as shown in fig. 6, the first transistor T1, second transistor T2, third transistor T3 and the 4th transistor T4
Grid is connected to the first control signal SW1, the second control signal SW2, the 3rd control signal SW3 and four control signals, when
When first public electrode A is not applied in the second current potential, the first control signal SW1 control the first transistors T1 disconnects；When the second public affairs
When common electrode B is not applied in the second current potential, the second control signal SW2 control second transistors T2 disconnects；As the 3rd public electrode C
When not being applied in the second current potential, the 3rd control signal SW3 control third transistor T3 disconnects；When the 4th public electrode D is not applied
Plus during the second current potential, the 4th control signal SW4 controls the 4th transistor T4 to disconnect.
Example IV
For example judge the short-circuit display content of row, picture is formed by row point according to public electrode, if touch-control display panel exists
Under normally black mode,
Touch control display apparatus is first put black, then display black and white is spaced by row.As shown in fig. 7, touch-control display panel bag
Include the first public electrode A, the second public electrode B, the 3rd public electrode C and the 4th public electrode D, the first public electrode A, second
Public electrode B, the 3rd public electrode C and the 4th public electrode D receive touching signals by one article of lead (not shown), with
One public electrode A, the second public electrode B, the 3rd public electrode C and the 4th public electrode D are arranged as repeating single into two rows two row
Member, touch-control display panel includes multiple repeat units arranged into an array, wherein, the first public electrode A (lead) and second
Public electrode B, the 4th public electrode D, the 3rd public electrode C (lead) are likely to form short circuit, and the second public electrode B (draws
Line) it is likely to form short circuit with the first public electrode A, the 3rd public electrode C, the 4th public electrode D (lead).
Specifically, touch control display apparatus first is put into black, then, as shown in Figure 7：
In first frame：First public electrode A and the 3rd public electrode C are shown as white picture, the second public electrode B and the 4th
Public electrode D is shown as black picture；If thering is region to be shown as black picture in the first public electrode A and the 3rd public electrode C, institute
Corresponding lead is open circuit；If the second public electrode B and the 4th public electrode have region to be shown as white picture, then corresponding
Lead is short circuit.
In second frame：Second public electrode B and the 4th public electrode D are shown as white picture, the first public electrode A and the 3rd
Public electrode C is shown as black picture, similarly, if having region to be shown as black picture in the second public electrode B and the 4th public electrode D
Face, then corresponding lead is open circuit；If there is region to there is region to be shown as white in the first public electrode A and the 3rd public electrode C
Picture, then corresponding lead is short circuit.
Certainly, in other embodiments, it may be carried out as follows detection：
Touch control display apparatus is first put black, then, in the first frame：Second public electrode B and the 4th public electrode D are shown as
White picture, the first public electrode A and the 3rd public electrode C are shown as black picture, similarly, if the second public electrode B and the 4th is public
There is region to be shown as black picture in common electrode D, then corresponding lead is open circuit；If the first public electrode A and the 3rd common electrical
There is region to there is region to be shown as white picture in the C of pole, then corresponding lead is short circuit.
In second frame：First public electrode A and the 3rd public electrode C are shown as white picture, the second public electrode B and the 4th
Public electrode D is shown as black picture；If thering is region to be shown as black picture in the first public electrode A and the 3rd public electrode C, institute
Corresponding lead is open circuit；If the second public electrode B and the 4th public electrode have region to be shown as white picture, then corresponding
Lead is short circuit.The present embodiment does not do any limitation to this.
The embodiment of the present invention is at least up to one of following beneficial effect：, can be with by the detection to touch-control display panel
It is determined that occurring the corresponding public electrode column of the lead of open circuit and/or short circuit.
Embodiment five
For example judge the short-circuit display content of row, picture formed by row point according to public electrode, display black and white is spaced by row,
If touch-control display panel is under normally black mode：
As shown in figure 8, touch-control display panel include the first public electrode A, the second public electrode B, the 3rd public electrode C and
4th public electrode D, the first public electrode A, the second public electrode B, the 3rd public electrode C and the 4th public electrode D pass through
One lead (not shown) receives touching signals, with the first public electrode A, the second public electrode B, the 3rd public electrode C and
Four public electrode D are arranged as repeat unit into two rows two row, and touch-control display panel includes multiple repeat units arranged into an array,
Wherein, the 3rd public electrode C and the first public electrode A, the 4th public electrode D, the second public electrode B are likely to form short circuit, the
Four public electrode D and the first public electrode A, the second public electrode B, the 3rd public electrode C are likely to form short circuit.
Specifically, touch control display apparatus first is put into black, then, as shown in Figure 8：
First frame：First public electrode A, the second public electrode B are shown as white picture, the 3rd public electrode C, and the 4th is public
Electrode D is shown as black picture, if having region to be shown as black picture in the first public electrode A, the second public electrode B, then corresponding
Lead for open circuit；If there is region to be shown as white picture in the 3rd public electrode C, the 4th public electrode D, then it is corresponding to draw
Line is short circuit.
Second frame：3rd public electrode C, the 4th public electrode D are shown as white picture, the first public electrode A, and second is public
Electrode B is shown as black picture, if the 3rd public electrode C, has region to be shown as black picture in the 4th public electrode D, then corresponding
Lead for open circuit；If there is region to be shown as white picture in the first public electrode A, the second public electrode B, then it is corresponding to draw
Line is short circuit.
Certainly, in other embodiments, it may be carried out as follows detection：
Touch control display apparatus is first put black, then, the first frame：3rd public electrode C, the 4th public electrode D is shown as white
Picture, the first public electrode A, the second public electrode B is shown as black picture, if the 3rd public electrode C, in the 4th public electrode D
There is region to be shown as black picture, then corresponding lead is open circuit；If the first public electrode A, the second public electrode B Zhong You areas
Domain is shown as white picture, then corresponding lead is short circuit.
Second frame：First public electrode A, the second public electrode B are shown as white picture, the 3rd public electrode C, and the 4th is public
Electrode D is shown as black picture, if having region to be shown as black picture in the first public electrode A, the second public electrode B, then corresponding
Lead for open circuit；If there is region to be shown as white picture in the 3rd public electrode C, the 4th public electrode D, then it is corresponding to draw
Line is short circuit.The present embodiment does not do any limitation to this.
The embodiment of the present invention is at least up to one of following beneficial effect：, can be with by the detection to touch-control display panel
It is determined that the corresponding public electrode for occurring the lead of open circuit and/or short circuit is expert at.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of detection method of touch-control display panel, the touch-control display panel includes：
Multiple public electrodes, each public electrode is electrically connected to a lead；Wherein,
During display, the public electrode is applied in common electric voltage；
During touch control detection, the public electrode is applied in touching signals by the lead, to determine the coordinate of touch location；
All public electrodes are divided into first to N electrode group, when detecting the touch-control display panel, in same electrode group
All public electrodes are applied in same picture detection signal；
The detection method of the touch-control display panel includes：
First frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
Second frame：Second current potential is applied to the first electrode group, remaining electrode group is not applied in the second current potential, it is described to cause
First electrode group region shows the second color, and remaining electrode group region keeps showing the first color；Wherein, first
In electrode group region, open circuit occurs for the lead for the public electrode being shown as corresponding to the region of the first color；In remaining electricity
In the group region of pole, short circuit occurs for the lead for the public electrode being shown as corresponding to the region of the second color；
By this rule, gradually detected to first to N electrode group, with the position for the lead for determining to occur open circuit and/or short circuit
Put；
Wherein, N is the integer more than or equal to 2；
First color is black, and second color is white；Or, the first color is white, and second color is
Black.
2. the detection method of touch-control display panel according to claim 1, it is characterised in that N=2,
All public electrodes are divided into first to second electrode group, and first electrode group includes multiple first public electrodes, second
Electrode group includes multiple second public electrodes, in the first direction and a second direction, first public electrode mutually with it is described
Second public electrode is adjacent to be alternately arranged；
The detection method of the touch-control display panel includes：
First frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
Second frame：Second current potential is applied to the first electrode group, second electrode group is not applied in the second current potential, it is described to cause
First electrode group region shows the second color, and second electrode group region keeps showing the first color；Wherein, first
In electrode group region, open circuit occurs for the lead for the public electrode being shown as corresponding to the region of the first color；In the second electricity
In the group region of pole, short circuit occurs for the lead for the public electrode being shown as corresponding to the region of the second color；
3rd frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
4th frame：Second current potential is applied to the second electrode group, first electrode group is not applied in the second current potential, it is described to cause
Second electrode group region shows the second color, and first electrode group region keeps showing the first color；Wherein, second
In electrode group region, open circuit occurs for the lead for the public electrode being shown as corresponding to the region of the first color；In the first electricity
In the group region of pole, short circuit occurs for the lead for the public electrode being shown as corresponding to the region of the second color.
3. the detection method of touch-control display panel according to claim 1, it is characterised in that N=3,
All public electrodes are divided into the first to the 3rd electrode group, and first electrode group includes multiple first public electrodes, second
Electrode group includes multiple second public electrodes, and the 3rd electrode group includes multiple 3rd public electrodes, in a first direction, and described the
One public electrode phase is adjacent with second public electrode to be alternately arranged, the 3rd public electrode repeated arrangement, in second party
Upwards, the first public electrode phase is adjacent with the 3rd public electrode is alternately arranged, and the second public electrode phase with
3rd public electrode is adjacent to be alternately arranged；
The detection method of the touch-control display panel includes：
First frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
Second frame：To the first electrode group apply the second current potential, second and the 3rd electrode group be not applied in the second current potential so that
The first electrode group region show the second color, second and the 3rd electrode group region keep the first color of display
It is color；Wherein, in first electrode group region, the lead for the public electrode being shown as corresponding to the region of the first color occurs
Open circuit；In second and the 3rd in electrode group region, the lead for the public electrode being shown as corresponding to the region of the second color
Generation short circuit；
3rd frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
4th frame：To the second electrode group apply the second current potential, first and the 3rd electrode group be not applied in the second current potential so that
The second electrode group region show the second color, first and the 3rd electrode group region keep the first color of display
It is color；Wherein, in second electrode group region, the lead for the public electrode being shown as corresponding to the region of the first color occurs
Open circuit；In first and the 3rd in electrode group region, the lead for the public electrode being shown as corresponding to the region of the second color
Generation short circuit；
5th frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
6th frame：Second current potential is applied to the 3rd electrode group, the first and second electrode groups are not applied in the second current potential, so that
Obtain the 3rd electrode group region and show the second color, the first and second electrode group regions keep showing the first color
It is color；Wherein, in the 3rd electrode group region, the lead for the public electrode being shown as corresponding to the region of the first color occurs
Open circuit；In the first and second electrode group regions, the lead for the public electrode being shown as corresponding to the region of the second color
Generation short circuit.
4. the detection method of touch-control display panel according to claim 1, it is characterised in that N=4,
All public electrodes are divided into first to fourth electrode group, and first electrode group includes multiple first public electrodes, second
Electrode group includes multiple second public electrodes, and the 3rd electrode group includes multiple 3rd public electrodes, and the 4th electrode group includes multiple
4th public electrode, first to fourth public electrode is arranged into two rows two and arranged；
The detection method of the touch-control display panel includes：
First frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
Second frame：Second current potential is applied to the first electrode group, the second to the 4th electrode group is not applied in the second current potential, so that
Obtain the first electrode group region and show the second color, the second to the 4th electrode group region keeps showing the first color
It is color；Wherein, in first electrode group region, the lead for the public electrode being shown as corresponding to the region of the first color occurs
Open circuit；In the second to the 4th electrode group region, the lead for the public electrode being shown as corresponding to the region of the second color
Generation short circuit；
3rd frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
4th frame：Apply the second current potential to the second electrode group, the first, third and fourth electrode group is not applied in the second electricity
Position, to cause the second electrode group region to show the second color, the first, third and fourth electrode group region is kept
Show the first color；Wherein, in second electrode group region, it is shown as the public electrode corresponding to the region of the first color
Lead occur open circuit；In the first, third and fourth electrode group region, corresponding to the region for being shown as the second color
Short circuit occurs for the lead of public electrode；
5th frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
6th frame：To the 3rd electrode group apply the second current potential, first, second and the 4th electrode group be not applied in second electricity
Position, to cause the 3rd electrode group region show the second color, first, second and the 4th electrode group region holding
Show the first color；Wherein, in the 3rd electrode group region, it is shown as the public electrode corresponding to the region of the first color
Lead occur open circuit；In first, second and the 4th in electrode group region, corresponding to the region for being shown as the second color
Short circuit occurs for the lead of public electrode；
7th frame：First current potential is applied to all public electrodes, to cause the whole touch-control display panel to show first
Color；
8th frame：Second current potential is applied to the 4th electrode group, the first to the 3rd electrode group is not applied in the second current potential, so that
Obtain the 4th electrode group region and show the second color, the first to the 3rd electrode group region keeps showing the first color
It is color；Wherein, in the 4th electrode group region, the lead for the public electrode being shown as corresponding to the region of the first color occurs
Open circuit；In the first to the 3rd electrode group region, the lead for the public electrode being shown as corresponding to the region of the second color
Generation short circuit.
5. the detection method of touch-control display panel according to claim 2, it is characterised in that the touch-control display panel is also
Including the first transistor and second transistor, first public electrode is connected to the first signal by the first transistor,
Second public electrode is connected to secondary signal by the second transistor,
Wherein, the grid of the first transistor and second transistor is connected to same control signal, when first common electrical
When pole is not applied in the second current potential, the drain electrode floating of the first transistor；When second public electrode is not applied in second
During current potential, the drain electrode floating of the second transistor；
Or, the grid of the first transistor and second transistor is connected to the first control signal and the second control letter
Number, when first public electrode is not applied in the second current potential, first control signal controls the first transistor to break
Open；When second public electrode is not applied in the second current potential, second control signal controls the second transistor to break
Open.
6. the detection method of touch-control display panel according to claim 3, it is characterised in that the touch-control display panel is also
Including the first transistor, second transistor and third transistor, first public electrode is connected by the first transistor
In the first signal, second public electrode is connected to secondary signal, the 3rd public electrode by the second transistor
3rd signal is connected to by the third transistor,
Wherein, the grid of the first transistor, second transistor and third transistor is connected to same control signal, when described
When first public electrode is not applied in the second current potential, the drain electrode floating of the first transistor；When second public electrode not
When being applied in the second current potential, the drain electrode floating of the second transistor；When the 3rd public electrode is not applied in the second current potential
When, the drain electrode floating of the third transistor；
Or, the grid of the first transistor, second transistor and third transistor is connected to the first control signal,
Two control signals and the 3rd control signal, when first public electrode is not applied in the second current potential, the first control letter
Number control the first transistor disconnects；When second public electrode is not applied in the second current potential, the second control letter
Number control second transistor disconnects；When the 3rd public electrode is not applied in the second current potential, the 3rd control letter
Number control third transistor disconnects.
7. the detection method of touch-control display panel according to claim 4, it is characterised in that the touch-control display panel is also
Including the first transistor, second transistor, third transistor and the 4th transistor, first public electrode passes through described first
Transistor is connected to the first signal, and second public electrode is connected to secondary signal, described by the second transistor
Three public electrodes are connected to the 3rd signal by the third transistor, and the 4th public electrode passes through the 4th transistor
The 4th signal is connected to,
Wherein, the grid of the first transistor, second transistor, third transistor and the 4th transistor is connected to same control
Signal, when first public electrode is not applied in the second current potential, the drain electrode floating of the first transistor；When described second
When public electrode is not applied in the second current potential, the drain electrode floating of the second transistor；When the 3rd public electrode is not applied
Plus during the second current potential, the drain electrode floating of the third transistor；When the 4th public electrode is not applied in the second current potential, institute
State the drain electrode floating of the 4th transistor；
Or, the first transistor, second transistor, the grid of third transistor and the 4th transistor are connected to first
Control signal, the second control signal, the 3rd control signal and the 4th control signal, when first public electrode is not applied in
During two current potentials, first control signal controls the first transistor to disconnect；When second public electrode is not applied in
During two current potentials, second control signal controls the second transistor to disconnect；When the 3rd public electrode is not applied in
During two current potentials, the 3rd control signal controls the third transistor to disconnect；When the 4th public electrode is not applied in
During two current potentials, the 4th control signal controls the 4th transistor to disconnect.
8. the detection method of touch-control display panel according to claim 1, it is characterised in that the touch-control display panel is also
Including pixel electrode and substrate, the public electrode and pixel electrode are respectively positioned on the side of the substrate, wherein,
The public electrode is located between the pixel electrode and the substrate, or, the pixel electrode is located at described public
Between electrode and the substrate.
9. the detection method of touch-control display panel according to claim 8, it is characterised in that the public electrode is described
The projection of 1 pixel electrode on the substrate is at least covered in projection in substrate.
10. the detection method of the touch-control display panel according to any one of claim 1-9, it is characterised in that described
The absolute value of the luminosity equation of one color and the second color is more than or equal to 1.
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