CN106652870A - Display device, display panel and driving method thereof - Google Patents
Display device, display panel and driving method thereof Download PDFInfo
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- CN106652870A CN106652870A CN201611044604.1A CN201611044604A CN106652870A CN 106652870 A CN106652870 A CN 106652870A CN 201611044604 A CN201611044604 A CN 201611044604A CN 106652870 A CN106652870 A CN 106652870A
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- switch
- control
- display floater
- public electrode
- 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
- G09G3/20—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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a display device, a display panel and a driving method thereof. The display panel comprises multiple common electrodes and multiple leads, wherein the common electors and the leads are electrically connected in a one-to-one correspondence way; a control circuit which is electrically connected with the first end of the leads and used for providing common voltage to the multiple common electrodes in the display period; and a first test circuit which is electrically connected with the second end of the leads and used for performing checkerboard frame testing on the multiple common electrodes in the test phase. The control electrode and the first test circuit are respectively connected with the two ends of the leads so that checkerboard frame testing can be performed on the common electrodes in the test phase through the first test circuit, all the common electrodes can be connected together in the display period through the control circuit, the common voltage can be inputted to the common electrodes through the control circuit and thus homogenous display of the common electrodes can be realized. Besides, the common voltage inputted to all the common electrodes by the control circuit is identical so that the problem of display frame horizontal stripes can be eliminated.
Description
Technical field
The present invention relates to display device technical field, more particularly, it relates to a kind of display device, display floater and its drive
Dynamic method.
Background technology
Existing In-cell touch display panel, by common electrode layer multiple public electrodes have been divided into, and this is public
Electrode is multiplexed with touch control electrode.Wherein, each public electrode is electrically connected by a lead with driving chip, to receive driving
The public voltage signal and touching signals of chip output.
But, can decay when being transmitted on lead due to the public voltage signal of driving chip output, that is to say, that
The letter received near the public electrode of driving chip can be less than away from the signal intensity that the public electrode of driving chip is received
Number intensity, so that public electrode away from driving chip and inconsistent near the current potential of the public electrode of driving chip, enters
And cause display picture band etc. occur, affect the display effect of display floater.
The content of the invention
In view of this, the invention provides a kind of display device, display floater and its driving method, to solve in existing skill
There is horizontal line in display picture in art, affects the problem of the display effect of display floater.
For achieving the above object, the present invention provides following technical scheme：
A kind of display floater, the working stage of the display floater includes test phase and normal work stage, it is described just
Often working stage includes display time interval, and the display floater includes：
Multiple public electrodes and Duo Gen leads, the public electrode is corresponded with the lead and electrically connected；
Control circuit, the control circuit is electrically connected with the first end of the lead, in the display time interval to institute
State multiple public electrodes and common electric voltage is provided；
First test circuit, first test circuit is electrically connected with the second end of the lead, in the test
Stage carries out gridiron pattern picture test to the plurality of public electrode.
A kind of driving method of display floater, including：
Test phase, under the control of the second control signal wire, second switch and the 3rd switch open, the second common signal
Line to public electrode is input into the first common electric voltage, and the 3rd common signal line to the public electrode is input into the second common electric voltage；
Display time interval, under the control of second control signal wire, the second switch and the 3rd switch are closed,
Under the control of the first control signal wire, first switch is opened, and the first common signal line to the public electrode is input into common electrical
Pressure.
A kind of display device, including display floater as above.
Compared with prior art, technical scheme provided by the present invention has advantages below：
Display device provided by the present invention, display floater and its driving method, due to control circuit and the first test electricity
Road is connected respectively with the two ends of lead, therefore, by the first test circuit public electrode can not only be carried out in test phase
Gridiron pattern picture is tested, and by control circuit all of public electrode can be linked together in display time interval, and is led to
Cross control circuit and be input into common electric voltage to public electrode, to realize that the homogenization of public electrode shows, eliminate the horizontal stroke of display picture
Stricture of vagina problem.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of overlooking the structure diagram of existing display floater；
Fig. 2 is a kind of overlooking the structure diagram of display floater provided in an embodiment of the present invention；
Fig. 3 is the overlooking the structure diagram of another kind of display floater provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of public electrode gridiron pattern picture provided in an embodiment of the present invention；
Fig. 5 is the overlooking the structure diagram of another kind of display floater provided in an embodiment of the present invention；
Fig. 6 is the overlooking the structure diagram of another kind of display floater provided in an embodiment of the present invention；
Fig. 7 is another kind of overlooking the structure diagram of display floater provided in an embodiment of the present invention；
Fig. 8 is the overlooking the structure diagram of another kind of display floater provided in an embodiment of the present invention；
Fig. 9 is the flow chart of the driving method of display floater provided in an embodiment of the present invention；
Figure 10 is a kind of structural representation of display device provided in an embodiment of the present invention.
Specific embodiment
As described in background, in existing In-cell touch display panel, display picture occurs band, affects aobvious
Show the display effect of panel.Although it is homogeneous to realize public electrode that a kind of shared gridiron pattern test circuit is disclosed in prior art
The display floater of change, but, the display floater can not still be completely eliminated display band.
With reference to Fig. 1, Fig. 1 is a kind of overlooking the structure diagram of existing display floater, and the display floater includes multiple public affairs
Common electrode 10 and Duo Gen leads 11, the public electrode 10 and lead 11 connect one to one, and the display floater also includes gridiron pattern
Test circuit 12.The gridiron pattern test circuit 12 includes multiple the first transistor M1, multiple transistor seconds M2, the first holding wire
M3, first voltage holding wire M4 and second voltage holding wire M5.
In test phase, the first holding wire M3 control the first transistor M1 and transistor seconds M2 conductings, first voltage letter
Number line M4 is input into first voltage signal by the first transistor M1 to a public electrode 10, and second voltage holding wire M5 is by the
Two-transistor M2 to another public electrode 10 is input into second voltage signal, to realize that gridiron pattern picture shows.
In display time interval, the first holding wire M3 control the first transistor M1 and transistor seconds M2 conductings, first voltage letter
Number line M4 is input into first voltage signal by the first transistor M1 to a public electrode 10, and second voltage holding wire M5 is by the
Two-transistor M2 realizes each public electrode of whole display floater to another input second voltage signal of public electrode 10
10 homogenization shows.But, due to the current potential of first voltage signal and second voltage signal it is inconsistent, therefore, display picture
Horizontal line still occurs, the display effect of display floater is affected.
Based on this, the invention provides a kind of display floater, with the problems referred to above for overcoming prior art to exist, the display
The working stage of panel includes test phase and normal work stage, and the normal work stage includes display time interval, described aobvious
Show that panel includes：
Multiple public electrodes and Duo Gen leads, the public electrode is corresponded with the lead and electrically connected；
Control circuit, the control circuit is electrically connected with the first end of the lead, in the display time interval to institute
State multiple public electrodes and common electric voltage is provided；
First test circuit, first test circuit is electrically connected with the second end of the lead, in the test
Stage carries out gridiron pattern picture test to the plurality of public electrode.
Display floater provided by the present invention, due to control circuit and the first test circuit respectively with the two ends phase of lead
Connect, therefore, gridiron pattern picture test, Er Qieneng can not only be carried out to public electrode in test phase by the first test circuit
Enough by control circuit all of public electrode is linked together in display time interval, and it is defeated to public electrode by control circuit
Enter common electric voltage, to realize that the homogenization of public electrode shows.Also, because control circuit is to the public affairs of each public electrode input
Common voltage is identical, therefore, it can eliminate the problem of display picture band.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
A kind of display floater is embodiments provided, with reference to Fig. 2, Fig. 2 is provided in an embodiment of the present invention a kind of aobvious
Show the overlooking the structure diagram of panel, the display floater includes multiple public electrodes 20, many leads 21, control circuit 22 and the
One test circuit 23.
In the present embodiment, public electrode 20 is corresponded with lead 21 and electrically connected.As shown in Fig. 2 lead 21 is positioned at public
There is insulating barrier, lead 21 is by the via 210 through insulating barrier between the surface of electrode 20, and lead 21 and public electrode 20
Electrically connect with public electrode 20.Wherein, the zone line of lead 21 is electrically connected with public electrode 20, also, the two ends of lead 21
The viewing area for being each passed through the place of public electrode 20 extends to the non-display area at display floater two ends, one end of the lead 21 with it is aobvious
The control circuit 22 for showing panel one end non-display area is electrically connected, and its other end is surveyed with the first of display floater other end non-display area
Examination circuit 23 is electrically connected.I.e. control circuit 22 is electrically connected with the first end of all of lead 21, the first test circuit 23 with it is all
Lead 21 the second end electrical connection, control circuit 22 be used in display time interval to multiple leads 21 and coupled common electrical
Pole 20 provides common electric voltage, and the first test circuit 23 is used to carry out multiple public electrodes 20 gridiron pattern picture survey in test phase
Examination.
Because the test circuit 23 of control circuit 22 and first is connected respectively with the two ends of lead 21, therefore, can not only lead to
Crossing the first test circuit 23 carries out gridiron pattern picture test to public electrode 20, and can be by control circuit 22 to common electrical
Pole 20 is input into common electric voltage, and the homogenization for realizing public electrode 20 shows.Also, because control circuit 22 is to each public electrode
The common electric voltage of 20 inputs is identical, therefore, it can eliminate the problem of display picture band.
Illustrate with reference to the concrete structure of the test circuit 23 of control circuit 22 and first.With reference to Fig. 3, Fig. 3 is this
Inventive embodiments provide another kind of display floater overlooking the structure diagram, control circuit 22 include multiple first switches K1,
First control signal wire S1 and the first common signal line G1, the first test circuit 23 include multiple second switch K2, multiple three
Switch K3, the second control signal wire S2, the second common signal line G2 and the 3rd common signal line G3.
Wherein, the control end of first switch K1 is electrically connected with the first control signal wire S1, the first end of first switch K1 with
First common signal line G1 is electrically connected, and the second end of first switch K1 electrically connects with the first end of lead 21.Second switch K2's
The control end of control end and the 3rd switch K3 is electrically connected with the second control signal wire S2；The first end of second switch K2 is public with second
Holding wire G2 electrical connections altogether, the first end of the 3rd switch K3 is electrically connected with the 3rd common signal line G3；The second of second switch K2
End electrically connects with the second end of a lead 21, and second end of the 3rd switch K3 electrically connects with the second end of another lead 21；
Wherein, the public electrode 20 that is connected with second switch K2 and the public electrode 20 that is connected with the 3rd switch K3 in a first direction X and
It is alternately arranged in second direction Y, first direction X is vertical with second direction Y.
In the present embodiment, the working stage of display floater includes test phase and normal work stage, normal work stage
Including display time interval.Wherein, before display floater dispatches from the factory, i.e., need to test display floater in test phase, to protect
The structures such as card public electrode 20 being capable of normal work；After qualified display floater dispatches from the factory, it is packaged into using the display floater
Display need to carry out the display of image, i.e., in the display time interval of normal work stage, display floater can carry out the display of image.
Test phase, under the control of the second control signal wire S2, the switch K3 of second switch K2 and the 3rd are opened, and second is public
Altogether holding wire G2 is input into the first common electric voltage to public electrode 20, and the 3rd common signal line G3 is public to the input second of public electrode 20
Common voltage.Due to the current potential of the first common electric voltage and the second common electric voltage it is different, and the public electrode being connected with second switch K2
20 and it is alternately arranged with the 3rd public electrodes 20 that are connected of switch K3 in a first direction X and second direction Y, therefore, in lead
21 and the normal work of public electrode 20 in the case of, multiple public electrodes 20 are presented gridiron pattern picture as shown in Figure 4, and Fig. 4 is
The schematic diagram of public electrode gridiron pattern picture provided in an embodiment of the present invention.That is, in test phase, if display floater
Display picture be gridiron pattern picture as shown in Figure 4, then each public electrode 20 can be not short-circuit or disconnected with normal work
The defects such as road, the test passes of display floater.
In the present embodiment, display floater also includes driving chip.Display floater needs to be carried out before binding driving chip
Gridiron pattern test, now, can by the second control signal wire S2, the second common signal line G2 and the 3rd common signal line G3 and other
Test chip be connected, from other test chips to the second control signal wire S2 input control signal control second switch K2 and
3rd switch K3 is opened, the first common electric voltage is provided to the second common signal line G2, is provided second to the 3rd common signal line G3
Common electric voltage.Certainly, the present invention is not limited to this, and in other embodiments, above-mentioned other test chips can be by showing
The driving chip of panel replaces.
In display floater test passes and after binding driving chip, can be by the second control signal wire of the first test circuit 23
S2 is connected with driving chip, and the second common signal line G2 and the 3rd common signal line G3 is hanging, and by driving chip second is passed through
Control signal wire S2 controls the switch K3 of second switch K2 and the 3rd and is closed in normal work stage, to avoid the first survey
Examination circuit 23 affects the normal work of display floater.Wherein, normal work stage includes display time interval and touch-control period.
In one embodiment of the invention, with reference to Fig. 5, Fig. 5 is another kind of display floater provided in an embodiment of the present invention
Overlooking the structure diagram, the first test circuit 23 is located at the binding area that driving chip 24 is located, and the part of driving chip 24 or
The first test circuit 23 is all covered, now, the first test circuit 23 does not additionally take up room, can be with relatively reduced display floater
Size.Certainly, the present invention is not limited to this, and in another embodiment of the present invention, with reference to Fig. 6, Fig. 6 is real for the present invention
The overlooking the structure diagram of another kind of display floater of example offer is applied, the first test circuit 23 is located at tying up for the place of driving chip 24
The region between the viewing area that area and public electrode 20 are located is determined, to reduce the area of display floater non-display area, beneficial to display
The narrow frameization design of panel.
Bind on a display panel after driving chip 24, driving chip 24 with leaded 21 the second end electrically connect,
Also, driving chip 24 is electrically connected with the first control signal wire S1 and the first common signal line G1.In display time interval, driving chip
24 are input into common electric voltage by the second end of lead 21 to public electrode 20, by the first control signal wire S1 to first switch K1
Input control signal control first switch K1 is opened, by the first end of the first common signal line G1 and lead 21 to public electrode
20 input common electric voltages.
Although the second end from driving chip 24 to lead 21 be input into common electric voltage to the one end away from driving chip 24
Can decay during transmission, cause the voltage of public electrode 20 away from driving chip 24 less than the public affairs near driving chip 24
Common electrode 20 so that the current potential heterogeneity of each public electrode 20, but, the control circuit 22 in the present embodiment is public by first
Altogether holding wire G1 and first switch K1 of conducting link together all of public electrode 20, and driving chip 24 passes through first
Common signal line G1 and first switch K1 of conducting are input into common electric voltage to the first end of lead 21, it is achieved thereby that display floater
The homogenization of interior each public electrode 20 shows.Secondly as common electrical of the control circuit 22 to each input of public electrode 20
Pressure is identical, and the common electric voltage that be input into the first end of lead 21 of control circuit 22 and driving chip 24 are to the input of the end of lead 21 second
Common electric voltage it is identical, therefore, it can eliminate display picture band problem.Again, with the structure shown in Fig. 1 in prior art
Compare, in the embodiment of the present invention, the display floater left and right sides only has two signal leads, that is to say, that display surface in the present invention
The cabling of the plate left and right sides is less, can further reduce the left and right side frame size of display floater.
Additionally, the public electrode 20 in the present embodiment can be multiplexed with touch control electrode, and multiple public electrodes 20 are in array
Formula is arranged, to realize self-capacitance touch-control.Based on this, the normal work stage of display floater also includes the touch-control period.Specifically,
One vertical interval of display floater includes display time interval and touch-control period.In the touch-control period, the first control signal wire S1's
Under control, first switch K1 is closed, that is to say, that in the touch-control period, driving chip 24 is controlled by the first control signal wire S1
First switch K1 is closed, to avoid control circuit 22 from affecting touch control electrode i.e. public electrode 20 to carry out the detection of touch location.
When touch location detection is carried out, driving chip 24 to public electrode 20 is touch control electrode input detection signal, and
The induced signal of detection touch control electrode output, when no touch on display floater, the electric capacity between touch control electrode and ground will not be sent out
Changing, when there is touch on display floater, the electric capacity between touch control electrode and ground at touch location can change, the position
The induced signal of the touch control electrode output at the place of putting also can change, and driving chip 24 detects the sensing of the touch control electrode output
After signal intensity, transverse and longitudinal coordinate that can be according to the touch control electrode in touch control electrode array determines touch location.
With reference to Fig. 7, Fig. 7 is another kind of overlooking the structure diagram of display floater provided in an embodiment of the present invention, the display
Panel also includes that a plurality of gate line 25, a plurality of data lines 26, the intersection that insulated by a plurality of gate line 25 and a plurality of data lines 26 are limited
The multiple pixel cells 27 for going out and gate driver circuit 28, each pixel cell 27 includes thin film transistor (TFT) and pixel electrode.Its
In, the grid of thin film transistor (TFT) is connected with corresponding gate line 25, and the source electrode of thin film transistor (TFT) is connected with corresponding data wire 26,
The drain electrode of thin film transistor (TFT) is connected with corresponding pixel electrode.Additionally, gate driver circuit 28 is connected with a plurality of gate line 25, grid
Pole drive circuit 28 is used to sequentially input scanning signal to a plurality of gate line 25 successively, and the thin film for controlling to be connected with gate line 25 is brilliant
Body pipe is opened.All of data wire 26 is connected with driving chip 24, and driving chip 24 is additionally operable to be input into number to a plurality of data lines 26
According to drive signal, data wire 26 is in the case of thin film transistor (TFT) conducting to pixel electrode input data drive signal.Wherein, it is public
Common electrode 20 covers multiple pixel cells 27, and the public electrode 20 and pixel electrode composition driving pixel cell 27 carry out image and show
The electric field for showing.
With reference to Fig. 8, Fig. 8 is the overlooking the structure diagram of another kind of display floater provided in an embodiment of the present invention, the display
Panel also includes the second test circuit 29, and the second test circuit 29 is used to test data wire 26 in test phase, judges
Data wire 26 is with the presence or absence of open circuit or short circuit.Second test circuit 29 include multiple four switch K4, multiple five switches K5, the
Three control signal wire S3, the first data signal line D1 and the second data signal line D2.
Wherein, the control end of the control end of the 4th switch K4 and the 5th switch K5 is electrically connected with the 3rd control signal wire S3；
The first end of the 4th switch K4 is electrically connected with the first data signal line D1, the first end and the second data signal line of the 5th switch K5
D2 is electrically connected；Second end of the 4th switch K4 electrically connects with a data lines 26, and the 5th switchs second end of K5 and another radical
Electrically connect according to line 26.
Test phase, under the control of the 3rd control signal wire S3, the 4th switch K4 and the 5th switch K5 are opened, the first number
The first data signal, the second data signal line D2 are input into a data lines 26 by the 4th switch K4 of conducting according to holding wire D1
Second data signal is input into another data lines 26 by the 5th switch K5 for turning on, if the pixel list being connected with data wire 26
Unit 27 is normal to be shown, then data wire 26 does not have the situation of open circuit or short circuit.
Equally, need binding driving chip 24 before carry out test pixel, now, can by the 3rd control signal wire S3,
First data signal line D1 and the second data signal line D2 is connected with other test chips, from other test chips to the 3rd
Control signal wire S3 input control signals control the 4th switchs the switch K5 of K4 and the 5th and opens, provides to the first data signal line D1
First data signal, to the second data signal line D2 provide the second data signal.Certainly, the present invention is not limited to this, at it
In his embodiment, above-mentioned other test chips can be replaced by driving chip 24.
In display floater test passes and bind after driving chip 24, can be by the 3rd control signal of the second test circuit 29
Line S3 is connected with driving chip 24, and the first data signal line D1 and the second data signal line D2 is hanging, is led to by driving chip 24
Cross the switch K4 of the 3rd control signal wire S3 controls the 4th and the 5th switch K5 is closed in normal work stage, to avoid
Second test circuit 29 affects the normal work of display floater.Wherein, normal work stage includes display time interval and touch-control period.
In one embodiment of the invention, the second test circuit 29 is located at the same of display floater with the first test circuit 23
Side, and the second control signal wire S2 and the 3rd control signal wire S3 can be same holding wire, to reduce by a holding wire
With a port of driving chip 24.Certainly, the present invention is not limited to this, in other embodiments, the second control signal wire
S2 and the 3rd control signal wire S3 can also be two different holding wires.
The display floater that the embodiment of the present invention is provided, because control circuit and the first test circuit are respectively with the two of lead
End is connected, therefore, gridiron pattern picture test can not only be carried out to public electrode in test phase by the first test circuit, and
And by control circuit all of public electrode can be linked together in display time interval, and by control circuit to common electrical
Pole is input into common electric voltage, to realize that the homogenization of public electrode shows.Also, because control circuit is to each public electrode input
Common electric voltage it is identical, therefore, it can eliminate display picture band problem.
The embodiment of the present invention additionally provides a kind of driving method of display floater, is applied to what any of the above-described embodiment was provided
Display floater, with reference to Fig. 9, Fig. 9 is the flow chart of the driving method of display floater provided in an embodiment of the present invention, the driving method
Including：
S101：Test phase, under the control of the second control signal wire, second switch and the 3rd switch open, second is public
Altogether holding wire is input into the first common electric voltage to the public electrode, and the 3rd common signal line is public to public electrode input second
Common voltage；
Due to the current potential of the first common electric voltage and the second common electric voltage it is different, and the public electrode that is connected with second switch and
The public electrode being connected with the 3rd switch is alternately arranged in the first direction and a second direction, therefore, in lead and public electrode
In the case of normal work, multiple public electrodes are presented gridiron pattern picture as shown in Figure 4.That is, in test phase, such as
The display picture of fruit display floater is gridiron pattern picture as shown in Figure 4, then judge each public electrode can with normal work, and
Without the defect such as short circuit or open circuit, the test passes of display floater.
S102：Display time interval, under the control of second control signal wire, the second switch and the described 3rd is switched
Close, under the control of first control signal wire, the first switch is opened, and first common signal line is to the public affairs
Common electrode is input into common electric voltage.
In display time interval, driving chip is input into common electric voltage by the second end of lead to public electrode, by the first control
Holding wire processed to first switch input control signal control first switch is opened, by the first of the first common signal line and lead
Hold to public electrode and be input into common electric voltage.
Although the second end from driving chip to lead be input into common electric voltage to away from driving chip one end transmission
During can decay, cause the voltage of public electrode away from driving chip less than the public electrode near driving chip so that
The homogeneity of each public electrode is poor, but, the control circuit in the present embodiment is by the first common signal line and conducting
First switch links together all of public electrode, and driving chip is opened by the first of the first common signal line and conducting
Close to the first end of lead and be input into common electric voltage, it is achieved thereby that the homogenization of each public electrode shows in display floater.Its
Secondary, because control circuit is to the common electric voltage of each public electrode input identical, and control circuit is input into lead first end
Common electric voltage is identical to the common electric voltage that the end of lead second is input into driving chip, therefore, it can eliminate display picture band
Problem.Again, compared with the structure in prior art shown in Fig. 1, in the embodiment of the present invention, the display floater left and right sides only has two
Root signal lead, that is to say, that the cabling of the display floater left and right sides is less in the present invention, can further reduce display floater
Left and right side frame size.
Additionally, when public electrode is multiplexed with touch control electrode, normal work stage also includes the touch-control period：
The touch-control period, under the control of the first control signal wire, the first switch is closed, in the second control signal
Under the control of line, second switch and the 3rd switch are closed.
The driving method of display floater provided in an embodiment of the present invention, due to control circuit and the first test circuit respectively with
The two ends of lead are connected, therefore, gridiron pattern picture can not only be carried out to public electrode in test phase by the first test circuit
Face is tested, and by control circuit all of public electrode can be linked together in display time interval, and by controlling electricity
Road direction public electrode is input into common electric voltage, to realize that the homogenization of public electrode shows.Also, because control circuit is to each public affairs
The common electric voltage of common electrode input is identical, therefore, it can eliminate the problem of display picture band.
The embodiment of the present invention additionally provides a kind of display device, and with reference to Figure 10, Figure 10 is to show dress in the embodiment of the present invention
The cross-sectional view put, the display device includes the display floater 1 that any of the above-described embodiment is provided.Embodiment of the present invention institute
The display device of offer, can not only carry out gridiron pattern picture survey to public electrode by the first test circuit in test phase
Examination, and can be linked together all of public electrode in display time interval by control circuit, and by control circuit to
Public electrode is input into common electric voltage, to realize that the homogenization of public electrode shows, eliminates the problem of display picture band.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope for causing.
Claims (13)
1. a kind of display floater, it is characterised in that the working stage of the display floater includes test phase and normal work rank
Section, the normal work stage includes display time interval, and the display floater includes：
Multiple public electrodes and Duo Gen leads, the public electrode is corresponded with the lead and electrically connected；
Control circuit, the control circuit is electrically connected with the first end of the lead, in the display time interval to described many
Individual public electrode provides common electric voltage；
First test circuit, first test circuit is electrically connected with the second end of the lead, in the test phase
Gridiron pattern picture test is carried out to the plurality of public electrode.
2. display floater according to claim 1, it is characterised in that the control circuit include multiple first switches, the
One control signal wire and the first common signal line；
The control end of the first switch is electrically connected with first control signal wire, the first end of the first switch with it is described
First common signal line is electrically connected, and the second end of the first switch electrically connects with the first end of the lead.
3. display floater according to claim 2, it is characterised in that first test circuit is opened including multiple second
Pass, multiple 3rd switches, the second control signal wire, the second common signal line and the 3rd common signal line, the second switch
The control end of control end and the 3rd switch is electrically connected with second control signal wire；The first end of the second switch with
The second common signal line electrical connection, the first end of the 3rd switch is electrically connected with the 3rd common signal line；It is described
Second end of second switch electrically connects with the second end of a lead, it is described 3rd switch the second end with described in another
The second end electrical connection of lead；
Wherein, the public electrode that is connected with the second switch and the public electrode that is connected with the described 3rd switch are in a first direction
It is alternately arranged with second direction, the first direction is vertical with the second direction.
4. display floater according to claim 3, it is characterised in that the display floater also includes a plurality of data lines and the
Two test circuits；
Second test circuit includes multiple four switches, multiple 5th switches, the 3rd control signal wire, the first data signal
Line and the second data signal line；
The control end of the control end of the 4th switch and the 5th switch is electrically connected with the 3rd control signal wire；
It is described 4th switch first end electrically connect with first data signal line, it is described 5th switch first end with it is described
Second data signal line is electrically connected；
It is described 4th switch the second end electrically connect with a data wire, it is described 5th switch the second end and another institute
State data wire electrical connection.
5. display floater according to claim 4, it is characterised in that second test circuit and the described first test electricity
Road is located at the same side of the display floater, and second control signal wire and the 3rd control signal wire are same letter
Number line.
6. the display floater according to claim 4 or 5, it is characterised in that the display floater also includes driving chip；
Second end of the lead, first control signal wire, first common signal line, second control signal wire
Electrically connect with the driving chip with the 3rd control signal wire.
7. display floater according to claim 6, it is characterised in that first test circuit is located at the driving chip
The binding area at place, and the driving chip partly or entirely covers first test circuit.
8. display floater according to claim 6, it is characterised in that first test circuit is located at the driving chip
Region between the viewing area that the binding area at place and the public electrode are located.
9. display floater according to claim 1, it is characterised in that first test circuit and the control circuit set
Put on the bearing of trend of the lead, and first test circuit and the control circuit are located at respectively the display floater
Relative both sides.
10. display floater according to claim 1, it is characterised in that the public electrode is multiplexed with touch control electrode, and institute
State multiple public electrodes to arrange in array.
11. a kind of driving methods of display floater, it is characterised in that the display floater being applied to described in claim 1, the drive
Dynamic method includes：
Test phase, under the control of the second control signal wire, second switch and the 3rd switch open, the second common signal line to
Public electrode is input into the first common electric voltage, and the 3rd common signal line to the public electrode is input into the second common electric voltage；
Display time interval, under the control of second control signal wire, the second switch and the 3rd switch are closed, the
Under the control of one control signal wire, first switch is opened, and the first common signal line to the public electrode is input into common electric voltage.
12. methods according to claim 11, it is characterised in that when the public electrode is multiplexed with touch control electrode, institute
Stating normal work stage also includes the touch-control period：
The touch-control period, under the control of first control signal wire, the first switch is closed, in the described second control
Under the control of holding wire, the second switch and the 3rd switch are closed.
13. a kind of display devices, it is characterised in that including the display floater described in any one of claim 1 to 10.
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| CN201611044604.1A CN106652870A (en) | 2016-11-24 | 2016-11-24 | Display device, display panel and driving method thereof |
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| CN201611044604.1A CN106652870A (en) | 2016-11-24 | 2016-11-24 | Display device, display panel and driving method thereof |
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| CN201611044604.1A Pending CN106652870A (en) | 2016-11-24 | 2016-11-24 | Display device, display panel and driving method thereof |
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