CN109493785A - A kind of display panel and its driving method, display device - Google Patents
A kind of display panel and its driving method, display device Download PDFInfo
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- CN109493785A CN109493785A CN201811627711.6A CN201811627711A CN109493785A CN 109493785 A CN109493785 A CN 109493785A CN 201811627711 A CN201811627711 A CN 201811627711A CN 109493785 A CN109493785 A CN 109493785A
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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
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
Abstract
The invention discloses a kind of display panel and its driving methods, display device.The display panel includes: multiple touch control electrodes and a plurality of first touching signals line, a plurality of display drive signals line extended from viewing area to non-display area, and display drive signals line is used for transmission display drive signals；Switching circuit and touching signals input terminal, switching circuit includes control terminal, input terminal and multiple output ends, the input terminal of switching circuit is electrically connected with touching signals input terminal, multiple output ends of switching circuit are electrically connected with a plurality of display drive signals line respectively, and switching circuit is used on or off between input terminal and output end according to the signal of control terminal.The embodiment of the present invention reduces the load current of the first touching signals line and the difference of load current, to reduce the noise on the first touching signals line, and then improves the touch-control performance of display panel.
Description
Technical field
The present embodiments relate to field of display technology more particularly to a kind of display panels and its driving method, display dress
It sets.
Background technique
Display panel with the touch function advantage more simple because of human-computer interaction, is widely used in mobile phone, plate
Computer, public place hall the various display products such as information enquiry machine in.
With the development of science and technology, user is also higher and higher to the sensitivity of touch function and the requirement of accuracy.However,
In the prior art, due to more with the signal wire of the functions such as touch-control for showing in display panel, so that the touching of display panel
Control signal wire is easy to be interfered, and touching signals line has that noise is larger, affects the touch-control performance of display panel.
Summary of the invention
The present invention provides a kind of display panel and its driving method, display device, to reduce the noise on touching signals line
Interference.
In a first aspect, the embodiment of the invention provides a kind of display panel, which includes:
Multiple touch control electrodes and a plurality of first touching signals line, the multiple touch control electrode are set to the viewing area, institute
It states a plurality of first touching signals line to be extended from the viewing area to the non-display area, the first touching signals line and the touching
Control electrode electrical connection；
The a plurality of display drive signals line extended from viewing area to non-display area, the display drive signals line are used for transmission
Display drive signals；
Switching circuit and touching signals input terminal, the switching circuit include control terminal, input terminal and multiple output ends,
The input terminal of the switching circuit is electrically connected with the touching signals input terminal, multiple output ends difference of the switching circuit
It is electrically connected with a plurality of display drive signals line, the switching circuit is used for input terminal and output according to the signal of control terminal
On or off between end.
Second aspect, the embodiment of the invention also provides a kind of display device, which includes:
Such as the described in any item display panels of the embodiment of the present invention；
Driving chip is bound with the touching signals input terminal, for inputting in the touch-control stage to the touching signals
Terminal exports touching signals.
The third aspect, the driving of the embodiment of the invention also provides a kind of display panel as provided by the embodiment of the present invention
Method, the driving method include:
In the display stage, the control terminal of Xiang Suoshu switching circuit transmits first control signal, controls the switching circuit
Input terminal and output end shutdown；Display drive signals are transmitted to a plurality of display drive signals line；
In the touch-control stage, the control terminal of Xiang Suoshu switching circuit transmits second control signal, controls the switching circuit
Input terminal and output end conducting；Touching signals are transmitted to the touching signals input terminal.
The embodiment of the present invention is arranged switching circuit on a display panel, and switching circuit includes control terminal, input terminal and multiple
The input terminal of output end, switching circuit is electrically connected with touching signals input terminal, multiple output ends of switching circuit respectively with it is more
The electrical connection of bar display drive signals line, switching circuit be used for according to the signal of control terminal will between input terminal and output end conducting or
Shutdown.The embodiment of the present invention can control display drive signals line and the first touching by the on or off of control switching circuit
Signal wire is controlled to avoid the first touching signals line compared with prior art with drive or non-same drive and charge to load capacitance, be conducive to
The load current of the first touching signals line and the difference of load current are reduced, to reduce on the first touching signals line
Noise improves the signal-to-noise ratio on the first touching signals line, and then improves the touch-control performance of display panel.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is the enlarged structure schematic diagram of region A in Fig. 3；
Fig. 5 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 6 is the enlarged structure schematic diagram of region B in Fig. 5；
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 8 is the enlarged structure schematic diagram of region C in Fig. 7；
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Figure 10 is the enlarged structure schematic diagram of region D in Fig. 9；
Figure 11 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Figure 12 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Figure 13 is a kind of flow diagram of the driving method of display panel provided in an embodiment of the present invention；
Figure 14 is the flow diagram of the driving method of another display panel provided in an embodiment of the present invention；
Figure 15 is the flow diagram of the driving method of another display panel provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention.Referring to Fig. 1, the display panel packet
Include viewing area 100, non-display area 200, multiple touch control electrodes 300, a plurality of first touching signals line 400, a plurality of display driving letter
Number line 500, switching circuit 600 and touching signals input terminal 700.Multiple touch control electrodes 300 are set to viewing area 100, a plurality of
First touching signals line 400 is extended from viewing area 100 to non-display area 200, the first touching signals line 400 and touch control electrode 300
Electrical connection.A plurality of display drive signals line 500 is extended from viewing area 100 to non-display area 200, and display drive signals line 500 is used
In transmission display drive signals.Switching circuit 600 includes control terminal 601, input terminal 602 and multiple output ends 603, switching circuit
600 input terminal 602 is electrically connected with touching signals input terminal 700, multiple output ends 603 of switching circuit 600 respectively with it is more
Bar display drive signals line 500 is electrically connected, and switching circuit 600 is used for input terminal 602 and output according to the signal of control terminal 601
On or off between end 603.
Wherein, display drive signals line 500 for example may include data line or scan line.It is schematically illustrated in Fig. 1
Display drive signals line 500 is data line, and the extending direction of data line is parallel with the extending direction of the first touching signals line 400
Setting.Touching signals input terminal 700 for example can be the pad being set on display panel, the touching signals input terminal
700 can be used for binding with driving chip, transmit touching signals from driving chip to touching signals input terminal 700.
Illustratively, the driving method of the display panel is, in the display stage, control of the driving chip to switching circuit 600
First control signal (such as low level signal) is transmitted at end 601 processed, controls the input terminal 602 and output end 603 of switching circuit 600
Shutdown；Driving chip transmits display drive signals to a plurality of display drive signals line 500, so that display panel shows picture；?
Touch-control stage, driving chip transmit second control signal (such as high level signal) to the control terminal 601 of switching circuit 600, control
The input terminal 602 and output end 603 of switching circuit 600 processed are connected；Driving chip transmits touch-control to touching signals input terminal 700
Touching signals are transmitted to a plurality of display drive signals line 500 by signal, so that the voltage on display drive signals line 500 and
Voltage on one touching signals line 400 is equal.
By taking display drive signals line 500 is data line as an example, the principle of the embodiment of the present invention is illustrated.Display driving
Signal wire 500 and the first touching signals line 400 form load capacitance, and display drive signals line 500 constitutes the first of load capacitance
Pole, the first touching signals line 400 constitute the second pole of load capacitance.And due to the position of a plurality of first touching signals line 400, length
The difference of degree etc., the load capacitance of a plurality of first touching signals line 400 are not exactly the same.In the touch-control stage, switching circuit 600
Input terminal 602 and output end 603 are connected, and touching signals are transmitted to display drive signals line by touching signals input terminal 700
500, i.e., with driving, the signal on display drive signals line 500 is touching for display drive signals line 500 and the first touching signals line 400
Signal is controlled, at the same time, the signal on the first touching signals line 400 is also touching signals.Due to the first touching signals line 400 with
Voltage on display drive signals line 500 is equal, i.e., the voltage on two electrode of load capacitance is equal, avoids the first touching signals
Line 400 charges to load capacitance, to reduce the load current of the first touching signals line 400, and avoids load capacitance
The difference the problem of load current on the first touching signals line 400 is had differences.
Switching circuit 600 is arranged in the embodiment of the present invention on a display panel, and switching circuit 600 includes control terminal 601, input
End 602 and multiple output ends 603, the input terminal 602 of switching circuit 600 are electrically connected with touching signals input terminal 700, switching electricity
Multiple output ends 603 on road 600 are electrically connected with a plurality of display drive signals line 500 respectively, and switching circuit 600 is used for according to control
The signal at end 601 is by or off between input terminal 602 and output end 603.The embodiment of the present invention can be switched by control
The on or off of circuit 600, control display drive signals line 500 and the first touching signals line 400 are with driving or non-with driving, and now
There is technology to compare, avoids the first touching signals line 400 and charge to load capacitance, advantageously reduce the first touching signals line 400
Load current and the difference of load current improve first to reduce the noise on the first touching signals line 400
Signal-to-noise ratio on touching signals line 400, and then improve the touch-control performance of display panel.
Fig. 2 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Referring to fig. 2, in above-mentioned each reality
On the basis of applying example, optionally, display panel further includes the second touching signals line 800, and the second touching signals line 800 is around display
Area 100, the second touching signals line 800 are electrically connected with touching signals input terminal 700.The embodiment of the present invention is arranged the second touch-control and believes
Number line 800 surrounds viewing area 100, and the second touching signals line 800 can be made to shield external interference, further decreases the first touch-control letter
Noise jamming on number line 400, promotes the touch-control performance of display panel.
Fig. 3 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, and Fig. 4 is that region A is put in Fig. 3
Big structure schematic diagram.Referring to Fig. 3 and Fig. 4, on the basis of the various embodiments described above, optionally, switching circuit 600 includes multiple the
One transistor 610, the grid of multiple the first transistors 610 are electrically connected with the control terminal 601 of switching circuit 600, and multiple first
The first of transistor 610 is extremely electrically connected with the input terminal 602 of switching circuit 600, the second pole point of multiple the first transistors 610
It is not electrically connected with the output end 603 of switching circuit 600.
Wherein, the first of multiple the first transistors 610 is extremely electrically connected with the input terminal 602 of switching circuit 600, i.e., multiple
The first of the first transistor 610 is extremely electrically connected with touching signals input terminal 700；Second pole of multiple the first transistors 610
It is electrically connected respectively with the output end 603 of switching circuit 600, i.e., the second pole of multiple the first transistors 610 drives with display respectively
Signal wire 500 is electrically connected.
Illustratively, by taking multiple the first transistors 610 are N-type transistor as an example, to the course of work of switching circuit 600 into
Row explanation.In the display stage, driving chip transmits low level signal, control multiple first to the control terminal 601 of switching circuit 600
Transistor 610 turns off, and a plurality of display drive signals line 500 is disconnected with touching signals input terminal 700；Driving chip is to more
Bar display drive signals line 500 transmits display drive signals.In the touch-control stage, control terminal of the driving chip to switching circuit 600
601 transmission high level signals, control multiple the first transistors 610 and are connected；Driving chip is transmitted to touching signals input terminal 700
Touching signals are transmitted to a plurality of display drive signals line 500 by touching signals.
It should be noted that in the above-described embodiments, being said so that multiple the first transistors 610 are N-type transistor as an example
Bright, not limitation of the invention, in other embodiments, it is P-type transistor that multiple the first transistors 610, which can also be arranged,
It can according to need and set in practical applications.
It should also be noted that, in the above-described embodiments, first of multiple the first transistors 610 in switching circuit 600
End is electrically connected by the second touching signals line 800 with touching signals input terminal 700, in the touch-control stage, the second touching signals line
800, the electrical connection of touching signals input terminal 700 and display drive signals line 500.It is not limitation of the invention, at it
The first end that multiple the first transistors 610 can also be arranged in his embodiment is directly electrically connected with touching signals input terminal 700,
It can according to need and set in practical applications.
On the basis of the various embodiments described above, optionally, display drive signals line 500 includes in data line or scan line
It is at least one.Since the quantity of data line and scan line on a display panel is most, generated with the first touching signals line 400 negative
The quantity for carrying capacitor is also most, and therefore, data line and scan line are maximum to the load effect of the first touching signals line 400.This hair
The output end 603 of bright embodiment setting switching circuit 600 is electrically connected at least one of data line or scan line, may be implemented
In the touch-control stage, touching signals are transmitted at least one of data line or scan line, to advantageously reduce the first touch-control letter
Noise on number line 400, and promote the touch-control performance of display panel.
Fig. 5 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, and Fig. 6 is that region B is put in Fig. 5
Big structure schematic diagram.Referring to figs. 5 and 6, on the basis of the various embodiments described above, optionally, display drive signals line is data
Line 510.Display panel further includes at least one first calibrating terminal 910 for being set to non-display area 200, the survey of at least one first
Trial signal line 920, multiple second transistors 620, at least one third transistor 630 and at least one first control terminal 930.
It includes two the first calibrating terminals, 910, two first test signal wires that display panel is schematically illustrated in Fig. 5 and Fig. 6
920, two third transistor 630 and three the first control terminals 930.First pole of each second transistor 620 and a data
Line 510 is electrically connected, and the second pole of second transistor 620 is electrically connected with corresponding first test signal wire 920.Third transistor
630 and first test the one-to-one correspondence of signal wire 920, and signal wire 920 is tested with corresponding first in the first pole of third transistor 630
Electrical connection, the second pole of third transistor 630 is electrically connected with touching signals input terminal 700.Second transistor 620, first is surveyed
Trial signal line 920 and third transistor 630 constitute switching circuit 600, the grid and third transistor of second transistor 620
Control terminal of 630 grid as switching circuit 600 is electrically connected, each second transistor with corresponding first control terminal 930
620 the first pole is respectively as each output end of switching circuit 600, and the second pole of third transistor 630 is as switching circuit 600
Input terminal.
Wherein, the first calibrating terminal 910 for example can be odd even testing weld pad or RGB testing weld pad, the first calibrating terminal
910 for testing signal to the first test signal wire 920 transmission first in VT detection-phase.Multiple second transistors 620 control
Data line 510 and the first test signal wire 920 conducting or shutdown.At least one third transistor 630 control the first test letter
Number line 920 and the conducting of touching signals input terminal 700 or shutdown.
Illustratively, it is illustrated so that second transistor 620 and third transistor 630 are P-type transistor as an example.It is examined in VT
The survey stage passes through the first control terminal by the first calibrating terminal 910 to first test signal wire 920 transmission the first test signal
Gate transport high level signal of the son 930 to second transistor 620, the control conducting of second transistor 620, the first test signal wire
920 test signal to the transmission of data line 510 first.In the display stage, driving chip is brilliant to third by the first control terminal 930
The control terminal of body pipe 630 transmits low level signal, and third transistor 630 turns off, and driving chip transmits number to multiple data lines 510
It is believed that number；In the touch-control stage, driving chip transmits height to the grid of second transistor 620 by the first control terminal 930 respectively
Level signal transmits high level signal to the control terminal of third transistor 630, and second transistor 620 and third transistor 630 are led
Logical, touching signals input terminal 700 and data line 510 are connected, and driving chip is surveyed by touching signals input terminal 700 and first
Trial signal line 920 transmits touching signals to data line 510.I.e. the embodiment of the present invention passes through setting second transistor 620 and third
Transistor 630, and the first test signal wire 920 of multiplexing transmit touching signals to data line 510, without being every data line
510 one transistors of setting, to greatly reduce the quantity of third transistor 630.
It should be noted that in the above-described embodiments, the first calibrating terminal 910, first tests 920 second crystal of signal wire
There are many pipes 620 and the set-up mode of third transistor 630, and the present invention is without limitation.Two of them is typically arranged below
Mode is illustrated, not as a limitation of the invention.
Optionally, with continued reference to Fig. 5 and Fig. 6, at least one first control terminal 930 include the first first control terminal 931,
First second control terminal 932 and the one the third control terminals 933；At least one first calibrating terminal 910 includes the first first test lead
Son 911 and the first second calibrating terminal 912, at least one first test signal wire 920 include the first first test signal wire 921 and the
One second tests signal wire 922, and the first first calibrating terminal 911 is electrically connected with the first first test signal wire 921, the first second calibrating terminal
912 are electrically connected with the first second test signal wire 922；Second pole of the second transistor 620 being electrically connected with odd number column data line 510
It is electrically connected with the first first test signal wire 921, the grid for the second transistor 620 being electrically connected with odd number column data line 510 and the
The electrical connection of one first control terminal 931；Second pole of the second transistor 620 being electrically connected with even number column data line 510 and the first second
It tests signal wire 922 to be electrically connected, the grid for the second transistor 620 being electrically connected with even number column data line 510 and the first second control
Terminal 932 is electrically connected；The grid of third transistor 630 is electrically connected with the one the third control terminals 933.
Illustratively, it is illustrated so that second transistor 620 and third transistor 630 are P-type transistor as an example.It is examined in VT
The survey stage transmits high level signal to the first first control terminal 931, and the second transistor 620 for controlling odd column is connected；To first
The transmission of first calibrating terminal 911 first test signal, the first first calibrating terminal 911 test signal wire 921 to odd number by the first first
The transmission of the data line 510 first test signal of column；High level signal is transmitted to the first second control terminal 932, controls even column
Second transistor 620 is connected；To the first second calibrating terminal 912 transmission the first test signal, the first second test signal wire 922 passes through
First second tests signal wire 922 to the data line 510 of even column transmission the first test signal.In display stage and touch-control stage
Driving method is identical as previous embodiment, and which is not described herein again.
It should be noted that in the above-described embodiments, after display panel binds driving chip, the first first control terminal 931,
First second control terminal 932 and the one the third control terminals 933 are electrically connected with driving chip, and short in the inside of driving chip
It connects, to realize that the grid of second transistor 620 and third transistor 630 is shorted, is simultaneously turned off in the display stage, in touch-control rank
Section simultaneously turns on.
Fig. 7 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, and Fig. 8 is that region C is put in Fig. 7
Big structure schematic diagram.Referring to figs. 7 and 8, optionally, at least one first control terminal 930 includes the first fourth control terminal
934, the one penta control terminals 935, the first own control terminal 936 and first heptan control terminal 937；At least one first test lead
Son 910 includes the one the third calibrating terminals 913, the first fourth calibrating terminal 914 and the one penta calibrating terminals 915, at least one first
Testing signal wire 920 includes the one the third test signal wires 923, the first fourth test signal wire 924 and the one penta test signal wires
925, the one the third calibrating terminals 913 be electrically connecteds with the one the third test signal wires 923, the first fourth calibrating terminal 914 and the survey of the first fourth
Trial signal line 924 is electrically connected, and the one penta calibrating terminals 915 are tested signal wire 925 with the one penta and are electrically connected；With the number of 3N+1 column
Second pole of the second transistor 620 being electrically connected according to line 510 is tested signal wire 923 with the one the third and is electrically connected, with 3N+1 columns
The grid for the second transistor 620 being electrically connected according to line 510 is electrically connected with the first fourth control terminal 934；With 3N+2 column data line
Second pole of the second transistor 620 of 510 electrical connections is electrically connected with the first fourth test signal wire 924, with 3N+2 column data line
The grid of the second transistors 620 of 510 electrical connections is electrically connected with the one penta control terminals 935, electric with 3N+3 column data line 510
Second pole of the second transistor 620 of connection be electrically connected with the one penta test signal wires 925, electric with 3N+3 column data line 510
The grid of the second transistor 620 of connection is electrically connected with the first own control terminal 936；The grid of third transistor 630 and first
Heptan, control terminal 937 was electrically connected；Wherein, N is positive integer and N >=0.
Wherein, the data line 510 of 3N+1 column, 3N+2 column and 3N+3 column can for example be separately connected red pixel
Column, green pixel column and blue pixel column.It illustratively, is P-type transistor with second transistor 620 and third transistor 630
For be illustrated.In VT detection-phase, high level signal is transmitted to the first fourth control terminal 934, the of control 3N+1 column
Two-transistor 620 is connected, and to the one the third transmission of calibrating terminal 913 first test signal wires, the one the third calibrating terminals 913 pass through the
The transmission detection signal of data line 510 that one third test signal wire 923 is arranged to 3N+1；Height is transmitted to the one penta control terminals 935
The second transistor 620 of level signal, control 3N+2 column is connected, to the first fourth calibrating terminal 914 transmission the first test signal
Line, the first fourth calibrating terminal 914 test the transmission detection signal of data line 510 that signal wire 924 is arranged to 3N+2 by the first fourth；
High level signal is transmitted to the first own control terminal 936, the second transistor 620 of control 3N+3 column is connected, and surveys to the one penta
Try the transmission of terminal 915 first test signal wire, the one penta calibrating terminals 915 are by the one penta test signal wires 925 to 3N+3
The transmission detection signal of data line 510 of column.It is achieved in red pixel column, green pixel column and blue pixel on display panel
The VT of column is detected.Identical as previous embodiment in the driving method in display stage and touch-control stage, which is not described herein again.
It should be noted that in the above-described embodiments, after display panel binds driving chip, the first fourth control terminal 934,
The one penta control terminals 935, the first own control terminal 936 and first heptan control terminal 937 be electrically connected with driving chip, and
The inside of driving chip is shorted, to realize that the grid of second transistor 620 and third transistor 630 is shorted, in the display stage
It simultaneously turns off, is simultaneously turned in the touch-control stage.
Fig. 9 is the structural schematic diagram of another display panel provided in an embodiment of the present invention, and Figure 10 is region D in Fig. 9
Enlarged structure schematic diagram.Referring to Fig. 9 and Figure 10, on the basis of the various embodiments described above, optionally, display drive signals line is to sweep
Retouch line 520.Display panel further includes at least one second calibrating terminal 940, at least one second for being set to non-display area 200
Test signal wire 950, multiple 4th transistors 640, at least one the 5th transistor 650 and at least one second control terminal
960.First pole of each 4th transistor 640 is electrically connected with scan line 520, the second pole of the 4th transistor 640 with it is corresponding
Second test signal wire 950 be electrically connected.5th transistor 650 and the second test signal wire 950 correspond, the 5th transistor
650 the first pole is electrically connected with corresponding second test signal wire 950, and the second pole of the 5th transistor 650 and touching signals are defeated
Enter the electrical connection of terminal 700.4th transistor 640, second tests signal wire 950 and the 5th transistor 650 constitutes switching circuit
600, the control terminal of the grid of the 4th transistor 640 and the grid of the 5th transistor 650 as switching circuit 600 is and corresponding
The electrical connection of the second control terminal 960, the first pole of each 4th transistor 640 respectively as switching circuit 600 each output end,
Input terminal of second pole of the 5th transistor 650 as switching circuit 600.The driving method and previous embodiment of the display panel
Similar, which is not described herein again.The embodiment of the present invention is by setting the 4th transistor 640 and the 5th transistor 650, and multiplexing the
Two test signal wires 950 transmit touching signals to scan line 520, it is not necessary that a transistor is arranged for every scan line 520, thus greatly
Reduce the quantity of the 5th transistor 650 greatly.
With continued reference to Fig. 9 and Figure 10, on the basis of the various embodiments described above, optionally, at least one second control terminal
960 include the second first control terminal 961, the second second control terminal 962 and the two the third control terminals 963；At least one second survey
Trying terminal 940 includes the second first calibrating terminal 941 and the second second calibrating terminal 942, at least one second test signal wire 950 wraps
The second first test signal wire 951 and the second second test signal wire 952 are included, the second first calibrating terminal 941 and the second first test signal
Line 951 is electrically connected, and the second second calibrating terminal 942 is electrically connected with the second second test signal wire 952；With 520 electricity of odd number horizontal scanning line
Second pole of the 4th transistor 640 of connection is electrically connected with the second first test signal wire 951, is electrically connected with odd number horizontal scanning line 520
The grid of the 4th transistor 640 connect is electrically connected with the second first control terminal 961；Be electrically connected with even number horizontal scanning line 520
Second pole of four transistors 640 is electrically connected with the second second test signal wire 952, the 4th be electrically connected with even number horizontal scanning line 520
The grid of transistor 640 is electrically connected with the second second control terminal 962；The grid of 5th transistor 650 and the two the third control terminals
963 electrical connections.The driving method of the display panel is similar with previous embodiment, and which is not described herein again.
Figure 11 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.Referring to Figure 11, above-mentioned each
On the basis of embodiment, optionally, display drive signals line 500 includes data line 510 and scan line 520.In the touch-control stage, drive
Dynamic chip transmits second control signal (such as high level signal) to the control terminal of switching circuit 600, control switching circuit 600
Input terminal and output end conducting；Driving chip transmits touching signals to touching signals input terminal 700, and touching signals are transmitted to
Data line 510 and scan line 520, so that on data line 510 and voltage and the first touching signals line 400 in scan line 520
Voltage is equal.The embodiment of the present invention reduces the noise on the first touching signals line 400, improves the first touching signals line 400
On signal-to-noise ratio, and then improve the touch-control performance of display panel.
With continued reference to Figure 11, on the basis of the various embodiments described above, optionally, touch control electrode 300 is multiplexed with public electrode,
First touching signals line 400 and the second touching signals line 800 are multiplexed with the signal wire of public electrode.In the display stage, core is driven
Piece transmits first control signal (such as low level signal) to the control terminal of switching circuit 600, controls the input of switching circuit 600
End and output end shutdown；Driving chip transmits display drive signals to a plurality of display drive signals line 500, to the first touching signals
Line 400 and the second touching signals line 800 transmit public voltage signal, so that display panel shows picture.
The embodiment of the invention also provides a kind of display devices.Figure 12 is a kind of display device provided in an embodiment of the present invention
Structural schematic diagram.Referring to Figure 12, which for example can be liquid crystal display device, organic LED display device
Or display device of electronic paper etc..The display device includes such as display panel provided by any embodiment of the invention and driving chip
(being not shown in Figure 12), driving chip and touching signals input terminal are bound, in the touch-control stage to touching signals input terminal
Son output touching signals.The technical principle of display device provided in an embodiment of the present invention and the technical effect of generation are similar, here
It repeats no more.
The embodiment of the invention also provides a kind of driving method of display panel, which is applicable to the present invention and appoints
Display panel provided by embodiment of anticipating.Figure 13 is a kind of process of the driving method of display panel provided in an embodiment of the present invention
Schematic diagram.Referring to Figure 13, the driving method of the display panel the following steps are included:
S110, the input of switching circuit is controlled to the control terminal of switching circuit transmission first control signal in the display stage
End and output end shutdown；Display drive signals are transmitted to a plurality of display drive signals line；
S120, the input of switching circuit is controlled to the control terminal of switching circuit transmission second control signal in the touch-control stage
End and output end conducting；Touching signals are transmitted to touching signals input terminal.
The embodiment of the present invention is by transmitting second control signal, control switching to the control terminal of switching circuit in the touch-control stage
The input terminal and output end of circuit are connected；Touching signals are transmitted to touching signals input terminal, it can be by controlling switching circuit
On or off, control display drive signals line and the first touching signals line with drive or it is non-with drive.Compared with prior art, originally
Inventive embodiments avoid the first touching signals line and charge to load capacitance, advantageously reduce the load electricity of the first touching signals line
The difference of stream and load current improves on the first touching signals line to reduce the noise on the first touching signals line
Signal-to-noise ratio, and then improve the touch-control performance of display panel.
On the basis of the above embodiments, optionally, first control signal is transmitted to the control terminal of switching circuit, control is cut
Change input terminal and the output end shutdown of circuit, comprising: to the gate transport first control signal of the first transistor, control first is brilliant
The shutdown of body pipe.Second control signal is transmitted to the control terminal of switching circuit, controls input terminal and the output end conducting of switching circuit,
It include: the gate transport second control signal to the first transistor, control the first transistor conducting.
Figure 14 is the flow diagram of the driving method of another display panel provided in an embodiment of the present invention.Referring to figure
14, on the basis of the various embodiments described above, optionally, the driving method of the display panel the following steps are included:
S210, in the display stage, to the grid of second transistor and the gate transport first control signal of third transistor,
Control second transistor and third transistor shutdown；Display drive signals are transmitted to a plurality of display drive signals line.
S220, in the touch-control stage, to the grid of second transistor and the gate transport second control signal of third transistor,
Control second transistor and third transistor conducting；Touching signals are transmitted to touching signals input terminal.
Figure 15 is the flow diagram of the driving method of another display panel provided in an embodiment of the present invention.Referring to figure
15, on the basis of the various embodiments described above, optionally, the driving method of the display panel the following steps are included:
S310, in the display stage, to the grid of the 4th transistor and the gate transport first control signal of the 5th transistor,
Control the 4th transistor and the shutdown of the 5th transistor；Display drive signals are transmitted to a plurality of display drive signals line.
S320, in the touch-control stage, to the grid of the 4th transistor and the gate transport second control signal of the 5th transistor,
Control the 4th transistor and the 5th transistor turns；Touching signals are transmitted to touching signals input terminal.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (14)
1. a kind of display panel, including viewing area and non-display area, which is characterized in that further include:
Multiple touch control electrodes and a plurality of first touching signals line, the multiple touch control electrode is set to the viewing area, described more
Item the first touching signals line is extended from the viewing area to the non-display area, the first touching signals line and touch-control electricity
Pole electrical connection；
The a plurality of display drive signals line extended from viewing area to non-display area, the display drive signals line are used for transmission display
Driving signal；
Switching circuit and touching signals input terminal, the switching circuit include control terminal, input terminal and multiple output ends, described
The input terminal of switching circuit is electrically connected with the touching signals input terminal, multiple output ends of the switching circuit respectively with institute
State the electrical connection of a plurality of display drive signals line, the switching circuit be used for according to the signal of control terminal by input terminal and output end it
Between on or off.
2. display panel according to claim 1, which is characterized in that further include:
Second touching signals line, the second touching signals line surround the viewing area, the second touching signals line with it is described
The electrical connection of touching signals input terminal.
3. display panel according to claim 1, which is characterized in that the switching circuit includes: multiple the first transistors；
The grid of the multiple the first transistor is electrically connected with the control terminal of the switching circuit, the multiple the first transistor
First be extremely electrically connected with the input terminal of the switching circuit, the second pole of the multiple the first transistor is cut with described respectively
Change the output end electrical connection of circuit.
4. display panel according to claim 1-3, which is characterized in that the display drive signals line includes number
According at least one of line or scan line.
5. display panel according to claim 4, which is characterized in that the display drive signals line is data line；
The display panel further includes at least one first calibrating terminal for being set to the non-display area, the survey of at least one first
Trial signal line, multiple second transistors, at least one third transistor and at least one first control terminal；
First pole of each second transistor is electrically connected with a data line, the second pole of the second transistor with it is right
The the first test signal wire electrical connection answered；
The third transistor and it is described first test signal wire correspond, the first pole of the third transistor with it is corresponding
The first test signal wire electrical connection, the second pole of the third transistor is electrically connected with the touching signals input terminal；
The second transistor, the first test signal wire and the third transistor constitute the switching circuit, described
The control terminal of the grid of second transistor and the grid of the third transistor as the switching circuit, and it is corresponding described
The electrical connection of first control terminal, each output end of the first pole of each second transistor respectively as the switching circuit, institute
State input terminal of the second pole of third transistor as the switching circuit.
6. display panel according to claim 5, which is characterized in that at least one first control terminal includes the first first control
Terminal processed, the first second control terminal and the one the third control terminals；At least one first calibrating terminal includes the first first calibrating terminal
With the first second calibrating terminal, at least one first test signal wire includes that the first first test signal wire and the first second test signal
Line, the first first calibrating terminal and first first test signal wire be electrically connecteds, the first second calibrating terminal and described the
One second tests signal wire electrical connection；Second pole of the second transistor being electrically connected with data line described in odd column and described the
One first tests signal wire electrical connection, the grid for the second transistor being electrically connected with data line described in odd column and described first
The electrical connection of first control terminal；Second pole of the second transistor being electrically connected with data line described in even column and first second
Test signal wire electrical connection, the grid for the second transistor being electrically connected with data line described in even column and the first second control
Terminal electrical connection processed；The grid of the third transistor is electrically connected with the one the third control terminal.
7. display panel according to claim 5, which is characterized in that at least one first control terminal includes the first fourth control
Terminal processed, the one penta control terminals, the first own control terminal and first heptan control terminal；At least one first calibrating terminal includes
The one the third calibrating terminals, the first fourth calibrating terminal and the one penta calibrating terminals, at least one first test signal wire includes first
Third test signal wire, the first fourth test signal wire and the one penta test signal wires, the one the third calibrating terminal and described first
Third test signal wire electrical connection, the first fourth calibrating terminal and first fourth are tested signal wire and are electrically connected, and described the one penta
Calibrating terminal is electrically connected with the one penta tests signal wire；Described second be electrically connected with the data line of 3N+1 column is brilliant
Second pole of body pipe is electrically connected with the one the third tests signal wire, arranges described second that the data line is electrically connected with 3N+1
The grid of transistor is electrically connected with the first fourth control terminal；Second crystalline substance that the data line is electrically connected is arranged with 3N+2
Second pole of body pipe is electrically connected with first fourth test signal wire, arranges described second that the data line is electrically connected with 3N+2
The grid of transistor is electrically connected with the one penta control terminal, and that 3N+3 arranges that the data line is electrically connected is described second brilliant
Second pole of body pipe is electrically connected with the one penta tests signal wire, arranges described second that the data line is electrically connected with 3N+3
The grid of transistor is electrically connected with the described first own control terminal；The grid of the third transistor and the control terminal in the first heptan
Son electrical connection；Wherein, N is positive integer and N >=0.
8. display panel according to claim 4, which is characterized in that the display drive signals line is scan line；
The display panel further includes at least one second calibrating terminal for being set to the non-display area, the survey of at least one second
Trial signal line, multiple 4th transistors, at least one the 5th transistor and at least one second control terminal；
First pole of each 4th transistor is electrically connected with a scan line, the second pole of the 4th transistor with it is right
The the second test signal wire electrical connection answered；
5th transistor and it is described second test signal wire correspond, the first pole of the 5th transistor with it is corresponding
The second test signal wire electrical connection, the second pole of the 5th transistor is electrically connected with the touching signals input terminal；
4th transistor, the second test signal wire and the 5th transistor constitute the switching circuit, described
Control terminal of the grid of the grid of 4th transistor and the 5th transistor as the switching circuit, and it is corresponding described
The electrical connection of second control terminal, each output end of the first pole of each 4th transistor respectively as the switching circuit, institute
State input terminal of the second pole of the 5th transistor as the switching circuit.
9. display panel according to claim 8, which is characterized in that at least one second control terminal includes the second first control
Terminal processed, the second second control terminal and the two the third control terminals；At least one second calibrating terminal includes the second first calibrating terminal
With the second second calibrating terminal, at least one second test signal wire includes that the second first test signal wire and the second second test signal
Line, the second first calibrating terminal and second first test signal wire be electrically connecteds, the second second calibrating terminal and described the
Diethyl tests signal wire electrical connection；Second pole of the 4th transistor being electrically connected with scan line described in odd-numbered line and described the
Diformazan tests signal wire electrical connection, the grid and described second for the 4th transistor being electrically connected with scan line described in odd-numbered line
The electrical connection of first control terminal；Second pole of the 4th transistor being electrically connected with scan line described in even number line and second second
Test signal wire electrical connection, the grid for the 4th transistor being electrically connected with scan line described in even number line and the second second control
Terminal electrical connection processed；The grid of 5th transistor is electrically connected with the two the third control terminal.
10. a kind of display device, which is characterized in that including such as described in any item display panels of claim 1-9；
Driving chip is bound with the touching signals input terminal, in the touch-control stage to the touching signals input terminal
Export touching signals.
11. a kind of driving method of display panel as described in claim 1 characterized by comprising
In the display stage, the control terminal of Xiang Suoshu switching circuit transmits first control signal, controls the input of the switching circuit
End and output end shutdown；Display drive signals are transmitted to a plurality of display drive signals line；
In the touch-control stage, the control terminal of Xiang Suoshu switching circuit transmits second control signal, controls the input of the switching circuit
End and output end conducting；Touching signals are transmitted to the touching signals input terminal.
12. the driving method of display panel according to claim 11, which is characterized in that the switching circuit includes multiple
The first transistor, the grid of the multiple the first transistor are electrically connected with the control terminal of the switching circuit, and the multiple
One transistor is connected in series in respectively between the input terminal and output end of the switching circuit；
It is described to transmit first control signal to the control terminal of the switching circuit, control input terminal and the output of the switching circuit
End shutdown, comprising:
To the gate transport first control signal of the first transistor, the first transistor shutdown is controlled；
It is described to transmit second control signal to the control terminal of the switching circuit, control input terminal and the output of the switching circuit
End conducting, comprising:
To the gate transport second control signal of the first transistor, the first transistor conducting is controlled.
13. the driving method of display panel according to claim 11, which is characterized in that the display drive signals line is
Data line；The display panel further includes at least one first calibrating terminal for being set to the non-display area, at least one
One test signal wire, multiple second transistors, at least one third transistor and at least one first control terminal；It is each described
First pole of second transistor is electrically connected with a data line, the second pole of the second transistor and corresponding described first
Test signal wire electrical connection；The third transistor and the first test signal wire correspond, the third transistor
First pole is electrically connected with the corresponding first test signal wire, and the second pole of the third transistor and the touching signals are defeated
Enter terminal electrical connection；The second transistor, the first test signal wire and the third transistor constitute the switching
Control terminal of the grid of circuit, the grid of the second transistor and the third transistor as the switching circuit, with
The corresponding first control terminal electrical connection, the first pole of each second transistor is respectively as each of the switching circuit
Output end, input terminal of the second pole of the third transistor as the switching circuit；
It is described to transmit first control signal to the control terminal of the switching circuit, control input terminal and the output of the switching circuit
End shutdown, comprising:
To the grid of the second transistor and the gate transport first control signal of the third transistor, control described second
Transistor and third transistor shutdown；
It is described to transmit second control signal to the control terminal of the switching circuit, control input terminal and the output of the switching circuit
End conducting, comprising:
To the grid of the second transistor and the gate transport second control signal of the third transistor, control described second
Transistor and third transistor conducting.
14. the driving method of display panel according to claim 11, which is characterized in that the display drive signals line is
Scan line；The display panel further includes at least one second calibrating terminal for being set to the non-display area, at least one
Two test signal wires, multiple 4th transistors, at least one the 5th transistor and at least one second control terminal；It is each described
First pole of the 4th transistor is electrically connected with a scan line, the second pole of the 4th transistor and corresponding described second
Test signal wire electrical connection；5th transistor and the second test signal wire correspond, the 5th transistor
First pole is electrically connected with the corresponding second test signal wire, and the second pole of the 5th transistor and the touching signals are defeated
Enter terminal electrical connection；4th transistor, the second test signal wire and the 5th transistor constitute the switching
Circuit, the control terminal of the grid of the 4th transistor and the grid of the 5th transistor as the switching circuit, with
The corresponding second control terminal electrical connection, the first pole of each 4th transistor is respectively as each of the switching circuit
Output end, input terminal of the second pole of the 5th transistor as the switching circuit；
It is described to transmit first control signal to the control terminal of the switching circuit, control input terminal and the output of the switching circuit
End shutdown, comprising:
To the grid of the 4th transistor and the gate transport first control signal of the 5th transistor, control the described 4th
Transistor and the 5th transistor shutdown；
It is described to transmit second control signal to the control terminal of the switching circuit, control input terminal and the output of the switching circuit
End conducting, comprising:
To the grid of the 4th transistor and the gate transport second control signal of the 5th transistor, control the described 4th
Transistor and the 5th transistor turns.
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| CN201811627711.6A CN109493785A (en) | 2018-12-28 | 2018-12-28 | A kind of display panel and its driving method, display device |
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| CN201811627711.6A CN109493785A (en) | 2018-12-28 | 2018-12-28 | A kind of display panel and its driving method, display device |
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