CN109979372A - A kind of display device and its driving method - Google Patents
A kind of display device and its driving method Download PDFInfo
- Publication number
- CN109979372A CN109979372A CN201910371318.3A CN201910371318A CN109979372A CN 109979372 A CN109979372 A CN 109979372A CN 201910371318 A CN201910371318 A CN 201910371318A CN 109979372 A CN109979372 A CN 109979372A
- Authority
- CN
- China
- Prior art keywords
- test signal
- scan driver
- driver module
- module
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
Landscapes
- 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 embodiment of the invention discloses a kind of display device and its driving methods.The display device includes: display panel, scan driver module, data-driven module and control module；Wherein, scan driver module includes test signal end, and test signal end is electrically connected with control module；Control module is used for after the abnormal signal for detecting test signal end, and in 2k+1 frame, the driving method for controlling scan driver module is forward scan, and controls the forward data signal that data-driven module exports display image to display panel；In 2k+2 frame, the driving method for controlling scan driver module is reverse scan, and controls the inversion data-signal that data-driven module exports display image to display panel.Compared with prior art, the embodiment of the present invention can continue to show basic complete image in scan driver module output abnormality, to improve the reliability of display device, and be conducive to be promoted safety of the display device applications when vehicle-mounted.
Description
Technical field
The present embodiments relate to field of display technology more particularly to a kind of display device and its driving methods.
Background technique
With the continuous development of display technology, display device application it is also more and more extensive, for example, display device applications in
The products such as mobile phone, computer, tablet computer, e-book and information enquiry machine, additionally can be applied to instrument class display (such as
Vehicular display device) and the control panel of smart home etc..
As shown in Figure 1, in the prior art, display device is there may be recessive bad, for example, having inside display device different
Object exists, route is bad or poor contact etc., does not detect in detection-phase bad, and breaks down in normal use process
Image.For example, region 110 is the image normally shown, region 120 is without aobvious or disorderly aobvious image.When event occurs in display device
When hindering image, display image can not be watched normally, for the meters display device of display operation information or traffic information,
Driving safety can be seriously affected.Therefore, there is poor reliability in existing display device.
Summary of the invention
The embodiment of the present invention provides a kind of display device and its driving method, to promote the reliability of display device.
In a first aspect, the embodiment of the invention provides a kind of display device, which includes:
Display panel；
Scan driver module, data-driven module and control module；
Wherein, the scan driver module includes test signal end, and the test signal end is electrically connected with the control module
It connects；The control module is used for after the abnormal signal for detecting the test signal end, in 2k+1 frame, is swept described in control
The driving method for retouching drive module is forward scan, and controls the data-driven module and export display figure to the display panel
The forward data signal of picture；In 2k+2 frame, the driving method for controlling the scan driver module is reverse scan, and is controlled
The data-driven module exports the inversion data-signal of the display image to the display panel；Wherein, k is non-negative whole
Number.
Second aspect, the embodiment of the invention also provides a kind of driving method of display device, the drive of the display device
Dynamic method includes:
Detect the test signal of the test signal end；
If the test signal is that abnormal signal controls the driving side of the scan driver module in 2k+1 frame
Formula is forward scan, and controls the forward data signal that the data-driven module exports display image to the display panel；
In 2k+2 frame, the driving method for controlling the scan driver module is reverse scan, and controls the data-driven module
The inversion data-signal of the display image is exported to the display panel；Wherein, k is nonnegative integer.
The embodiment of the present invention includes test signal end, test signal end and control module electricity by setting scan driver module
Connection, control module can be after the abnormal signals for detecting test signal end, and the driving method of switching display device is, in phase
In two adjacent frames, forward scan and reverse scan are alternately performed, and two frame fault pictures are combined into the substantially complete image of a frame, and only
Bad (for example, a bright line or concealed wire) is shown in failure output end.Compared with prior art, the embodiment of the present invention avoids
Because of a certain output end output abnormality of scan drive circuit, the case where leading to the rear class output end of the output end equal output abnormality.
Therefore, the embodiment of the present invention can continue to display whole image, to improve display in scan driver module output abnormality
The reliability of device, and be conducive to promote safety of the display device applications when vehicle-mounted.
Detailed description of the invention
Fig. 1 is a kind of existing structural schematic diagram of display device；
Fig. 2 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another display device provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of shift register cell provided in an embodiment of the present invention；
Fig. 7 is a kind of flow diagram of the driving method of display device provided in an embodiment of the present invention；
Fig. 8 is the flow diagram of the driving method of another display device provided in an embodiment of the present invention；
Fig. 9 is the flow diagram of the driving method of another display device 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.
As described in background, there is poor reliability in existing display device.Through inventor the study found that going out
Now the reason of problem, is as follows:
Referring to Fig. 1, display device includes scan driver module 130 and data drive module 140.When one frame image of display
When, scan driver module 130 successively sends scanning signal to corresponding scan line, realizes the progressive scan to display unit.?
When being scanned to every row display unit, scan driver module 130 controls the row display unit and opens, data-driven module 140
Data-signal is sent to corresponding data line, data-signal is written in the row display unit, to control row display unit hair
Light.For example, data-driven module 140 sends the first row to data line when scan driver module 130 scans the first row display unit
The data-signal of display unit；When scan driver module 130 scans the second row display unit, data-driven module 140 is to data
Line sends the data-signal ... ... of the second row display unit, when scan driver module 130 scans last line display unit, number
The data-signal of last line display unit is sent to data line according to drive module 140.Display device can show a frame as a result,
Complete image.
Wherein, scan driver module 130 includes the shift register cell of multiple cascade connections, shift register cell
Output end of the output end as scan driver module 130.The output end of certain level-one shift register cell is posted with next stage displacement
The input terminal of storage unit is electrically connected.Since display device exists, recessiveness is bad, and the displacement of certain level-one is posted in scan driver module 130
The output of storage unit is also abnormal signal there may be exception, the input signal of next stage shift register cell, thus
Lead to the equal output abnormality signal of all rear class shift register cells of failure shift register cell.In this way, in region 120
In, scan line can not normally open display unit, and data-signal can not also be normally written display unit.Therefore, display device goes out
Fault picture now as shown in Figure 1 can serious shadow for the meters display device of display operation information or traffic information
Driving safety is rung, the prior art is caused to there are problems that poor reliability.
In view of this, the embodiment of the invention provides a kind of display devices.Fig. 2 is provided in an embodiment of the present invention a kind of aobvious
The structural schematic diagram of showing device.Referring to fig. 2, which includes: display panel 200, scan driver module 300, data drive
Dynamic model block 400 and control module 700.Wherein, scan driver module 300 includes test signal end (for example, the first test signal end
301 or second test signal end 303), test signal end be electrically connected with control module 700；Control module 700 is for detecting
After testing the abnormal signal of signal end, in 2k+1 frame, the driving method of control scan driver module 300 is forward scan,
And control the forward data signal that data-driven module 400 exports display image to display panel 200；In 2k+2 frame, control
The driving method of scan driver module 300 processed is reverse scan, and controls data-driven module 400 and export to display panel 200
Show the inversion data-signal of image；Wherein, k is nonnegative integer.
Wherein, test signal end is used to export the test signal of scan driver module 300, which, which can characterize, sweeps
Retouch whether drive module 300 breaks down.For example, test signal end and an output end 302 of scan driver module 300 are electrically connected
It connects, when 302 output abnormality of output end, the test signal of test signal output end output is abnormal signal.Illustratively, it sweeps
Retouch pulse that the output end 302 of drive module 300 exports there are pulse missing, number of pulses is abnormal, pulse voltage is excessive, pulse
Situations such as voltage is too small or pulse shape is lopsided, then 300 output end 302 of scan driver module fails, and scan driver module 300 goes out
Existing failure.
Control module 700 is used to receive the test signal of scan driver module 300, and is controlled and scanned according to the test signal
The scanning mode of drive module 300, and the sequence of control 400 outputting data signals of data-driven module.Illustratively, when sweeping
When retouching 302 output abnormality of output end of drive module 300, if the scanning mode of scan driver module 300 is forward scan, specifically
For along column direction Y, the output end of scan driver module 300 is sequentially output scanning signal；Accordingly, data-driven module 400 is defeated
Forward data signal out.In region 210, the output end of scan driver module 300 is exported normally, and region 210 is normally shown
Image.When 302 output abnormality of output end of scan driver module 300, if display panel 200 is reverse scan, specifically, edge
The output end of the opposite direction of column direction Y, scan driver module 300 is sequentially output scanning signal；Accordingly, data-driven module
Data-signal is inverted in 400 outputs, wherein and it is inverted data-signal and refers to when showing a frame image, the output sequence of data-signal
First to export the corresponding data-signal of last line display unit along column direction Y, the first row finally exported along column direction Y is shown
Show the corresponding data-signal of unit, i.e. the output sequence of inversion data-signal is opposite with the output of forward data signal sequence.?
In region 220, the output end of scan driver module 300 is exported normally, and region 220 normally shows image.
Illustratively, the driving method of the display device is the test signal of detection test signal end.If test signal is
Normal signal, then in each frame, the driving method for controlling scan driver module 300 is forward scan, and controls data-driven mould
Block 400 exports the forward data signal of display image to display panel 200；Alternatively, according to normal signal, in each frame, control
The driving method of scan driver module 300 is reverse scan, and it is aobvious to the output of display panel 200 to control data-driven module 400
The inversion data-signal of diagram picture.If test signal is abnormal signal, in 2k+1 frame (odd-numbered frame), turntable driving is controlled
The driving method of module 300 is forward scan, and controls data-driven module 400 and export display image to display panel 200
Forward data signal；In 2k+2 frame (even frame), the driving method of control scan driver module 300 is reverse scan, and
Control the inversion data-signal that data-driven module 400 exports display image to display panel 200.
The embodiment of the present invention includes test signal end, test signal end and control mould by setting scan driver module 300
Block 700 is electrically connected, can be after the abnormal signal for detecting test signal end, and the driving method of switching display device is, in phase
In two adjacent frames, forward scan and reverse scan are alternately performed, and two frame fault pictures are combined into the substantially complete image of a frame, and only
Bad (for example, a bright line or concealed wire) is shown in failure output end 302.Compared with prior art, the embodiment of the present invention is kept away
Exempt from a certain output end output abnormality because of scan drive circuit, leads to the feelings of the equal output abnormality of rear class output end of the output end
Condition.Therefore, the embodiment of the present invention can continue to display whole image, to be promoted in 300 output abnormality of scan driver module
The reliability of display device, and be conducive to be promoted safety of the display device applications when vehicle-mounted.
With continued reference to Fig. 2, on the basis of the various embodiments described above, optionally, scan driver module 300 includes the first scanning
Drive module 310 and the second scan driver module 320；First scan driver module 310 and the second scan driver module 320 difference
It is set to the two of the viewing area (it includes region 210 and region 220 that viewing area is schematically illustrated in Fig. 2) of display panel 200
Side；First scan driver module 310 includes the first test signal end 301, and the second scan driver module 320 includes the second test letter
Number end 303；First test signal end 301 is electrically connected with control module 700 with the second test signal end 303.
Wherein, the first scan driver module 310 connects same with the correspondence output end of the second scan driver module 320 and sweeps
Line is retouched, transmits identical scanning signal to same scan line respectively.First test signal end 301 can be with the first turntable driving
One output end of module 310 is electrically connected, to export the test signal of the first scan driver module 310；Second test signal end
302 can be electrically connected with an output end of the second scan driver module 320, to export the survey of the second scan driver module 320
Trial signal.The set-up mode of first test signal end 301 and the second test signal end 303 may be the same or different.Example
Property, the first test signal end 301 is electrically connected with the output end 302 of the first scan driver module 310, the second test signal end
303 are electrically connected with the output end 304 of the second scan driver module 320.
Illustratively, the driving method of the display device is the test signal and second of detection the first test signal end 301
Test the test signal of signal end 303；If the test signal of the first test signal end 301 is abnormal signal or the second test
The test signal of signal end 303 is abnormal signal, then in 2k+1 frame, control the first scan driver module 310 and second is swept
The driving method for retouching drive module 320 is forward scan, and controls data-driven module 400 and export display to display panel 200
The forward data signal of image；In 2k+2 frame, the first scan driver module 310 and the second scan driver module 320 are controlled
Driving method be reverse scan, and control data-driven module 400 to display panel 200 export display image inversion data
Signal.
On the one hand, setting of embodiment of the present invention scan driver module 300 includes that the first scan driver module 310 and second is swept
When retouching drive module 320, enhance the homogeneity of scan line both ends scanning signal, and being conducive to promote the opening of display unit
Between homogeneity.On the other hand, since the output end of the first scan driver module 310 and the second scan driver module 320 is corresponding
Electrical connection, therefore, the abnormal signal of the first scan driver module 310 output will affect the second scan driver module 320, and second sweeps
The abnormal signal for retouching the output of drive module 320 also will affect the first scan driver module 310.Setting of the embodiment of the present invention first is swept
Retouching drive module 310 and the second scan driver module 320 includes test signal end, can be in the first scan driver module 310
When output abnormality, first test signal end 301 and second test the equal output abnormality signal of signal end 303, control module 700
According to the abnormal signal switch drive mode.The embodiment of the present invention is avoided because the receiving end reception of control module 700 is bad
Bring can not switch drive mode the phenomenon that, improve abnormal signal detection accuracy and control module 700 it is reliable
Property.
It should be noted that in the above embodiments, control module 700 can be separately provided, can also be filled with display
Other driving chips in setting are integrally disposed, and the present invention is without limitation.It can according to need setting in practical applications, below
Wherein several typical set-up modes are illustrated.
With continued reference to Fig. 2, optionally, display device further includes flexible circuit board 500 and mainboard 600；Flexible circuit board 500
One end be bound to display panel 200, the other end of flexible circuit board 500 is connect with mainboard 600；Control module 700 is set to
On mainboard 600.Wherein, control module 700 for example can integrate in sequence controller (Timing Controller, TCON),
TCON is set on mainboard 600.The test signal that TCON is exported according to scan driver module 300 controls scan driver module 300
Scanning mode, and control 400 outputting data signals of data-driven module sequence.The embodiment of the present invention is existing TCON's
On the basis of integrated control module 700, without in addition increasing device, and increase only test signal end 301 and control module 700
Cabling, increased cabling negligible amounts, therefore not will increase the border width of display device.
Fig. 3 is the structural schematic diagram of another display device provided in an embodiment of the present invention.Referring to Fig. 3, optionally, display
Panel 200 includes non-display area 230.Data-driven module and control module are integrated in a driving chip 800；Driving chip
800 are set in non-display area 230, and test signal end 301 is electrically connected with driving chip 800.Wherein, which goes back
It can have TCON function.The embodiment of the present invention is in this way, be conducive to reduce between scan driver module 300 and control module
Distance, to be conducive to the wiring of display device.
With continued reference to Fig. 3, on the basis of the various embodiments described above, optionally, scan driver module 300 is integrated in display surface
On plate 200, for example, (Gate Driver on Array, GOA) technology can be driven turntable driving mould using array substrate row
Block 300 is integrated in the array substrate of display panel 200, without scanning drive chip 800 is separately provided, is advantageously reduced
Cost.
It should be noted that in the above embodiments, schematically illustrating data-driven module 400 or driving chip
800 are set to the frame region of display panel 200, not limitation of the invention.In other embodiments, it can also use and cover
Brilliant film (Chip On Flex, COF) technology, is set to display panel 200 for data-driven module 400 or driving chip 800
The back side, to reduce the border width of display device.
Fig. 4 is the structural schematic diagram of another display device provided in an embodiment of the present invention.Referring to fig. 4, in above-mentioned each reality
On the basis of applying example, optionally, scan driver module 300 includes multiple cascade shift register cells 330, tests signal end
301 are electrically connected with afterbody shift register cell 330.The embodiment of the present invention is in this way, test signal end 301 can be examined
Survey the failure state of any level-one output end in scan driver module 300.
Fig. 5 is the structural schematic diagram of another display device provided in an embodiment of the present invention.Referring to Fig. 5, in above-mentioned each reality
On the basis of applying example, optionally, scan driver module 300 includes multiple cascade shift register cells 330, tests signal end
301 quantity (schematically illustrates the corresponding test signal of every level-one shift register cell 330 to be multiple in Fig. 5
End)；Multiple test signal ends are electrically connected with multiple shift register cells 330 respectively.
Illustratively, the driving method of the display device is the test signal for detecting multiple test signal ends；If a survey
The test signal at trial signal end is abnormal signal, then the shift register cell 330 being electrically connected with test signal end or its prime
330 operation irregularity of shift register cell, in 2k+1 frame, the driving method of control scan driver module 300 is swept for forward direction
It retouches, and controls the forward data signal that data-driven module 400 exports display image to display panel 200；In 2k+2 frame,
The driving method for controlling scan driver module 300 is reverse scan, and it is defeated to display panel 200 to control data-driven module 400
The inversion data-signal of image is shown out.
The embodiment of the present invention setting test signal end quantity be it is multiple, can not only be to 700 output abnormality of control module
Signal, additionally it is possible to detect the abort situation of scan driver module 300.Illustratively, if along Y-direction first order shift register
The corresponding test signal end output abnormality signal of unit 330, then 330 failure of first order shift register cell.If along Y-direction
First order shift register cell 330 and the corresponding test signal end of second level shift register cell 330 export normal signal,
Third level shift register cell 330 and the equal output abnormality letter of the corresponding test signal end of following stage shift register cell 330
Number, then 330 failure of third level shift register cell.
Fig. 6 is a kind of structural schematic diagram of shift register cell provided in an embodiment of the present invention.Referring to Fig. 6, above-mentioned
On the basis of each embodiment, optionally, shift register cell 330 includes that multiple control nodes (schematically illustrate in Fig. 6
Pull-up node PU, pull-down node PD, output end Gn and input terminal Gn+1), test signal end is at least electrically connected with a control node
It connects.Illustratively, shift register cell 330 includes pull-up circuit 331, the pull-up control circuit for controlling pull-up circuit 331
332, the pull-down control circuit 334 of pull-down circuit 333 and control pull-down circuit 333.And control node includes pull-up node
PU, pull-down node PD, output end Gn and input terminal Gn+1.
Setting test signal end of the embodiment of the present invention is at least electrically connected with a control node, can pass through control node
Output signal detect scan driver module whether failure.Optionally, the quantity for testing signal end is multiple, multiple test signal ends
It is electrically connected respectively with multiple control nodes of a shift register cell 330.The embodiment of the present invention is in this way, to control
Module can not only detect the abnormal signal of scan driver module, additionally it is possible to detect the abort situation of shift register cell 330.
Illustratively, if the corresponding test signal end output abnormality signal of pull-up node PU, 332 failure of pull-up control circuit.Under if
The corresponding test signal end output abnormality signal of node PD is drawn, then 334 failure of pull-down control circuit.
On the basis of the various embodiments described above, optionally, display panel is liquid crystal display panel (Liquid Crystal
Display, LCD), organic LED display panel (Organic Light-Emitting Diode, OLED), it is micro- shine
Diode display panel (Micro Light Emitting Diode, micro LED) or electrophoretic display panel
At least one of (Electrophoresis Display, EPD).
The embodiment of the invention also provides a kind of driving method of display device, the driving method of the display device can be applied
In display device provided by any embodiment of the invention.Fig. 7 is a kind of driving of display device provided in an embodiment of the present invention
The flow diagram of method.Referring to Fig. 7, the driving method of the display device the following steps are included:
The test signal of S110, detection test signal end.
If S120, test signal are abnormal signal, in 2k+1 frame, the driving method for controlling scan driver module is
Forward scan, and control the forward data signal that data-driven module exports display image to display panel；In 2k+2 frame,
The driving method for controlling scan driver module is reverse scan, and controls data-driven module and export display image to display panel
Inversion data-signal；Wherein, k is nonnegative integer.
The embodiment of the present invention by detect test signal end abnormal signal after, the driving method of switching display device
For in two adjacent frames, forward scan and reverse scan are alternately performed, and two frame fault pictures are combined into a frame completely schemes substantially
Picture, and only bad (for example, a bright line or concealed wire) is shown in failure output end.Compared with prior art, the present invention is implemented
Example avoids a certain output end output abnormality because of scan drive circuit, leads to the equal output abnormality of rear class output end of the output end
The case where.Therefore, the embodiment of the present invention can continue to display whole image, to mention in scan driver module output abnormality
The reliability of display device has been risen, and has been conducive to promote safety of the display device applications when vehicle-mounted.
On the basis of the various embodiments described above, optionally, scan driver module includes multiple cascade shift register lists
Member；Test signal end quantity be it is multiple, multiple test signal ends are electrically connected with multiple shift register cells respectively.The display
The driving method of device the following steps are included:
Detect the test signal of multiple test signal ends；
If the test signal of a test signal end is abnormal signal, the shift register being electrically connected with test signal end
Unit or its preceding shift register cell operation are abnormal, and in 2k+1 frame, the driving method for controlling scan driver module is
Forward scan, and control the forward data signal that data-driven module exports display image to display panel；In 2k+2 frame,
The driving method for controlling scan driver module is reverse scan, and controls data-driven module and export display image to display panel
Inversion data-signal.
On the basis of the various embodiments described above, optionally, scan driver module includes multiple cascade shift register lists
Member；Shift register cell includes multiple control nodes, and test signal end is at least electrically connected with a control node；Display dress
The driving method set the following steps are included:
Detect the test signal of at least one test signal end；
If the test signal of a test signal end is abnormal signal, with the control node that is electrically connected of test signal end or
Its prime control node operation irregularity, in 2k+1 frame, the driving method for controlling scan driver module is forward scan, and is controlled
Data-driven module processed exports the forward data signal of display image to display panel；In 2k+2 frame, turntable driving is controlled
The driving method of module is reverse scan, and controls the inversion data letter that data-driven module exports display image to display panel
Number.
Fig. 8 is the flow diagram of the driving method of another display device provided in an embodiment of the present invention.Referring to Fig. 8,
The driving method of the display device the following steps are included:
The test signal of S210, detection test signal end.
If S220, test signal are abnormal signal, in 2k+1 frame, the driving method for controlling scan driver module is
Forward scan, and control the forward data signal that data-driven module exports display image to display panel；In 2k+2 frame,
The driving method for controlling scan driver module is reverse scan, and controls data-driven module and export display image to display panel
Inversion data-signal.
If S230, test signal are normal signal, in each frame, the driving method of scan driver module is controlled as forward direction
Scanning, and control the forward data signal that data-driven module exports display image to display panel；Alternatively, according to normal letter
Number, in each frame, the driving method for controlling scan driver module is reverse scan, and controls data-driven module to display panel
The inversion data-signal of output display image.
On the basis of the various embodiments described above, optionally, scan driver module includes the first scan driver module and second
Scan driver module；First scan driver module and the second scan driver module are respectively arranged at the two of the viewing area of display panel
Side；First scan driver module includes the first test signal end, and the second scan driver module includes the second test signal end；First
Test signal end is electrically connected with control module with the second test signal end.Fig. 9 is that provided in an embodiment of the present invention another is aobvious
The flow diagram of the driving method of showing device.Referring to Fig. 9, the driving method of the display device the following steps are included:
The test signal of S310, the test signal of detection the first test signal end and the second test signal end.
If the test signal of S320, the first test signal end are the test letter of abnormal signal or the second test signal end
Number be abnormal signal, then in 2k+1 frame, control scan driver module driving method be forward scan, and control data drive
Dynamic model block exports the forward data signal of display image to display panel；In 2k+2 frame, the drive of scan driver module is controlled
Flowing mode is reverse scan, and controls the inversion data-signal that data-driven module exports display image to display panel.
On the basis of the various embodiments described above, optionally, abnormal signal is included at least: pulse missing, number of pulses be abnormal,
Pulse voltage is excessive, pulse voltage is too small or pulse shape is lopsided.
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 device characterized by comprising
Display panel；
Scan driver module, data-driven module and control module；
Wherein, the scan driver module includes test signal end, and the test signal end is electrically connected with the control module；Institute
Control module is stated in 2k+1 frame, the scanning being controlled and being driven after the abnormal signal for detecting the test signal end
The driving method of dynamic model block is forward scan, and controls the data-driven module and export display image to the display panel
Forward data signal；In 2k+2 frame, the driving method for controlling the scan driver module is reverse scan, and described in control
Data-driven module exports the inversion data-signal of the display image to the display panel；Wherein, k is nonnegative integer.
2. display device according to claim 1, which is characterized in that the scan driver module includes multiple cascade shiftings
Bit register unit, the test signal end are electrically connected with shift register cell described in afterbody.
3. display device according to claim 1, which is characterized in that the scan driver module includes multiple cascade shiftings
The quantity of bit register unit, the test signal end is multiple；
Multiple test signal ends are electrically connected with multiple shift register cells respectively.
4. display device according to claim 1, which is characterized in that the scan driver module includes multiple cascade shiftings
Bit register unit, the shift register cell include multiple control nodes；
The test signal end is at least electrically connected with a control node.
5. display device according to claim 1, which is characterized in that the scan driver module includes the first turntable driving
Module and the second scan driver module；First scan driver module and second scan driver module are respectively arranged at institute
State the two sides of the viewing area of display panel；
First scan driver module includes the first test signal end, and second scan driver module includes the second test letter
Number end；The first test signal end is electrically connected with the control module with the second test signal end.
6. display device according to claim 1, which is characterized in that the display panel includes non-display area；
The data-driven module and the control module are integrated in a driving chip；The driving chip is set to described non-
In viewing area, the test signal end is electrically connected with the driving chip.
7. display device according to claim 1, which is characterized in that further include flexible circuit board and mainboard；
One end of the flexible circuit board is bound to the display panel, and the other end of the flexible circuit board and the mainboard connect
It connects；
The control module is set on the mainboard.
8. display device according to claim 1, which is characterized in that the display panel is liquid crystal display panel, organic
At least one of LED display panel, micro- LED display panel or electrophoretic display panel.
9. a kind of driving method of display device, which is characterized in that the display device includes display panel, turntable driving mould
Block, data-driven module and control module；The scan driver module include test signal end, the test signal end with it is described
Control module electrical connection；
The driving method of the display device includes:
Detect the test signal of the test signal end；
If the test signal is abnormal signal, in 2k+1 frame, the driving method for controlling the scan driver module is
Forward scan, and control the forward data signal that the data-driven module exports display image to the display panel；?
In 2k+2 frame, the driving method for controlling the scan driver module is reverse scan, and controls the data-driven module to institute
State the inversion data-signal that display panel exports the display image；Wherein, k is nonnegative integer.
10. the driving method of display device according to claim 9, which is characterized in that the scan driver module includes
Multiple cascade shift register cells；It is described test signal end quantity be it is multiple, multiple test signal ends respectively with
Multiple shift register cell electrical connections；
The test signal of the detection test signal end, further includes:
Detect the test signal of multiple test signal ends；
If the test signal of a test signal end is abnormal signal, the shifting being electrically connected with the test signal end
Bit register unit or its preceding shift register cell operation are abnormal.
11. the driving method of display device according to claim 9, which is characterized in that the scan driver module includes
Multiple cascade shift register cells；The shift register cell includes multiple control nodes, and the test signal end is extremely
It is few to be electrically connected with a control node；
The test signal of the detection test signal end, further includes:
Detect the test signal of at least one test signal end；
If the test signal of a test signal end is abnormal signal, the control being electrically connected with the test signal end
Node processed or its prime control node operation irregularity.
12. the driving method of display device according to claim 9, which is characterized in that in the detection test letter
Number end test signal after, further includes:
If the test signal is normal signal, in each frame, the driving method of the scan driver module is controlled as forward direction
Scanning, and control the forward data signal that the data-driven module exports display image to the display panel；Alternatively, according to
The normal signal, in each frame, the driving method for controlling the scan driver module is reverse scan, and controls the data
Drive module exports the inversion data-signal of display image to the display panel.
13. the driving method of display device according to claim 9, which is characterized in that the scan driver module includes
First scan driver module and the second scan driver module；First scan driver module and second scan driver module
It is respectively arranged at the two sides of the viewing area of the display panel；
First scan driver module includes the first test signal end, and second scan driver module includes the second test letter
Number end；The first test signal end is electrically connected with the control module with the second test signal end；
The test signal of the detection test signal end, further includes:
Detect the test signal of the first test signal end and the test signal of the second test signal end；
The test signal is abnormal signal, comprising:
It is described first test signal end test signal be abnormal signal or it is described second test signal end test signal be
Abnormal signal.
14. according to the driving method of the described in any item display devices of claim 9-13, which is characterized in that the abnormal signal
Include at least: pulse missing, number of pulses are abnormal, pulse voltage is excessive, pulse voltage is too small or pulse shape is lopsided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371318.3A CN109979372B (en) | 2019-05-06 | 2019-05-06 | Display device and driving method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371318.3A CN109979372B (en) | 2019-05-06 | 2019-05-06 | Display device and driving method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109979372A true CN109979372A (en) | 2019-07-05 |
| CN109979372B CN109979372B (en) | 2022-07-22 |
Family
ID=67072851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910371318.3A Active CN109979372B (en) | 2019-05-06 | 2019-05-06 | Display device and driving method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109979372B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111919164A (en) * | 2019-08-19 | 2020-11-10 | 浙江长兴合利光电科技有限公司 | Display panel with narrow lower frame and electronic equipment |
| TWI753683B (en) * | 2020-09-16 | 2022-01-21 | 奇景光電股份有限公司 | Display device and display control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411910A (en) * | 2010-09-21 | 2012-04-11 | 群康科技(深圳)有限公司 | Display device and adjustment method for picture display direction thereof |
| CN103165056A (en) * | 2011-12-19 | 2013-06-19 | 三星显示有限公司 | Organic light emitting display device |
| US20130321730A1 (en) * | 2011-08-30 | 2013-12-05 | Shanghai Tianma Micro-electronics Co., Ltd. | Liquid crystal display device |
| CN105047115A (en) * | 2015-08-10 | 2015-11-11 | 武汉华星光电技术有限公司 | Detection drive circuit, detection drive unit and detection method |
| CN106601162A (en) * | 2016-12-23 | 2017-04-26 | 上海天马有机发光显示技术有限公司 | Display panel and display device comprising same |
| US20180308404A1 (en) * | 2017-04-19 | 2018-10-25 | Boe Technology Group Co., Ltd. | Scanning direction control circuit, driving method thereof, light-on testing device and display device |
-
2019
- 2019-05-06 CN CN201910371318.3A patent/CN109979372B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411910A (en) * | 2010-09-21 | 2012-04-11 | 群康科技(深圳)有限公司 | Display device and adjustment method for picture display direction thereof |
| US20130321730A1 (en) * | 2011-08-30 | 2013-12-05 | Shanghai Tianma Micro-electronics Co., Ltd. | Liquid crystal display device |
| CN103165056A (en) * | 2011-12-19 | 2013-06-19 | 三星显示有限公司 | Organic light emitting display device |
| CN105047115A (en) * | 2015-08-10 | 2015-11-11 | 武汉华星光电技术有限公司 | Detection drive circuit, detection drive unit and detection method |
| CN106601162A (en) * | 2016-12-23 | 2017-04-26 | 上海天马有机发光显示技术有限公司 | Display panel and display device comprising same |
| US20180308404A1 (en) * | 2017-04-19 | 2018-10-25 | Boe Technology Group Co., Ltd. | Scanning direction control circuit, driving method thereof, light-on testing device and display device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111919164A (en) * | 2019-08-19 | 2020-11-10 | 浙江长兴合利光电科技有限公司 | Display panel with narrow lower frame and electronic equipment |
| WO2021031093A1 (en) * | 2019-08-19 | 2021-02-25 | 浙江长兴合利光电科技有限公司 | Display panel having narrow lower bezel portion, and electronic apparatus |
| TWI769500B (en) * | 2019-08-19 | 2022-07-01 | 大陸商浙江長興合利光電科技有限公司 | Display panel and electronic device with narrow lower bezel |
| CN111919164B (en) * | 2019-08-19 | 2024-04-30 | 浙江长兴合利光电科技有限公司 | Display panel with narrow lower frame and electronic equipment |
| TWI753683B (en) * | 2020-09-16 | 2022-01-21 | 奇景光電股份有限公司 | Display device and display control method |
| US11244646B1 (en) | 2020-09-16 | 2022-02-08 | Himax Technologies Limited | Display device and display control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109979372B (en) | 2022-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10126868B2 (en) | Array substrate, method for driving the array substrate, display panel and display device | |
| CN106842656B (en) | Display device and method for measuring contact resistance of display device | |
| CN100585472C (en) | LCD device | |
| US7928752B2 (en) | Display device, display device testing system and method for testing a display device using the same | |
| KR100248127B1 (en) | Liquid crystal display device having inspection circuit | |
| KR100494685B1 (en) | Method for testing defect of lcd panel wiring | |
| US20180080973A1 (en) | Gate driving circuit and method for detecting same, array substrate and display apparatus | |
| CN103926767B (en) | Liquid crystal display and detection method thereof | |
| JPH11167129A (en) | Liquid crystal display device having electrostatic protective circuit and display inspection method utilize this circuit | |
| US20100141293A1 (en) | Lcd panels capable of detecting cell defects, line defects and layout defects | |
| CN108962160B (en) | Has the display panel of GOA circuit malfunction detection function | |
| CN101539693A (en) | Inspection circuit, electro-optic device, and electronic apparatus | |
| CN109658855A (en) | Array substrate, display module and its test method, display panel | |
| CN109979372A (en) | A kind of display device and its driving method | |
| CN106782250A (en) | A kind of display panel, its detection method and display device | |
| CN110232888A (en) | A kind of driving method of display panel, display device and display device | |
| US8139051B2 (en) | Driver and driving method, and display device | |
| US20060125512A1 (en) | Method and apparatus for inspecting array substrate | |
| US20210027681A1 (en) | Electro-optical device and electronic apparatus | |
| CN110718194A (en) | Display device | |
| CN111627367B (en) | Detection circuit and method of display panel and display panel | |
| CN113889047A (en) | Driving method of liquid crystal display panel, display device and electronic equipment | |
| CN1714386B (en) | Display with reduced 'block dim' effect | |
| US10818220B2 (en) | Driving method of display panel | |
| JP2012173598A (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |