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CN106940990B - Charging/discharging thereof and driving device, the display of display panel - Google Patents

Charging/discharging thereof and driving device, the display of display panel Download PDF

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Publication number
CN106940990B
CN106940990B CN201710271284.1A CN201710271284A CN106940990B CN 106940990 B CN106940990 B CN 106940990B CN 201710271284 A CN201710271284 A CN 201710271284A CN 106940990 B CN106940990 B CN 106940990B
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Prior art keywords
switch pipe
pixel
multiplex switch
charging
line
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CN106940990A (en
Inventor
安泰生
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3674Details of drivers for scan electrodes
    • G09G3/3677Details of drivers for scan electrodes suitable for active matrices only
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • G09G3/3688Details of drivers for data electrodes suitable for active matrices only

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (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 discloses a kind of charging/discharging thereof of display panel and driving devices, display, which comprises the scanning switch pipe for controlling all pixels is opened;Multiplex switch pipe is opened, is charged to the pixel electrode in its corresponding pixel;Stop output demultiplex control signal, adjusts the voltage of current data line to the charging voltage level of the corresponding pixel of abnormal multiplex switch pipe;Stop exporting scanning drive signal to current horizontal scanning line.By the above-mentioned means, the present invention, which can improve a certain multiplex switch pipe in current line, can not completely close the problem of leading to respective pixel mistake charge and discharge, the display of image quality is promoted.

Description

Charging/discharging thereof and driving device, the display of display panel
Technical field
The present invention relates to field of display technology, charging/discharging thereof and driving device more particularly to a kind of display panel, Display.
Background technique
Currently, the LCM (LCD Module) of small size, i.e. LCD display module, driving chip (driver IC) is most Number controls the multiplex switch pipe of three sub-pixels using the framework namely a data wire of 1 to 3 respectively by timesharing, Charge and discharge are carried out to pixel.
For the circuit of such framework, when the multiplex switch pipe of a certain sub-pixel in wherein a line can not completely close When, data line will be electrically operated to the progress charge and discharge of multiple pixels simultaneously, causes to show that picture is abnormal.
Summary of the invention
The present invention provides the charging/discharging thereof and driving device, display of a kind of display panel, can improve in current line A certain multiplex switch pipe can not completely close the problem of leading to respective pixel mistake charge and discharge, promote the display of image quality.
One technical scheme adopted by the invention is that: a kind of charging/discharging thereof of display panel, the display panel are provided Including array substrate, the array substrate includes a plurality of scan line being parallel to each other, a plurality of data vertical with the scan line Line, the pixel of multiple array arrangements, each pixel include scanning switch pipe and pixel electrode, at least partly described pixel into One step includes a multiplex switch pipe, passes through its multiplexing respectively by at least two identical pixels of the same scanning line traffic control Switching tube couples the same data line, and the control terminal of the multiplex switch pipe is for receiving demultiplex control signal;The method Include: whether multiplex switch pipe described in pixel described in detection current line exception occurs;It is abnormal if it exists, Xiang Dangqian horizontal scanning line Output scanning drive signal opens the scanning switch pipe by all pixels that the current horizontal scanning line controls;Successively The demultiplex control signal is exported to the control terminal of the multiplex switch pipe to open the multiplex switch pipe, each multiplexing Current data line charges to the pixel electrode in its corresponding described pixel during switching tube is opened;Stop exporting the multiplexing control Signal processed adjusts the voltage of the current data line to the charging voltage level of the corresponding pixel of specified multiplex switch pipe;Stop The scanning drive signal is exported to the current horizontal scanning line.
In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of drive of display panel Dynamic device, the display panel includes array substrate, and the array substrate includes a plurality of scan line being parallel to each other, a plurality of and institute State the vertical data line of scan line, the pixel of multiple array arrangements, each pixel includes scanning switch pipe and pixel electrode, At least partly described pixel further comprises a multiplex switch pipe, identical described by at least two of the same scanning line traffic control Pixel passes through its multiplex switch pipe respectively and couples the same data line, and the control terminal of the multiplex switch pipe is for receiving multiplexing Control signal;The driving device includes: scan drive circuit, for providing scanning drive signal to the scan line;Data Driving circuit, for providing data voltage to the data line;Multiplexing control circuit, for provide the demultiplex control signal To the multiplex switch pipe;Wherein, the scan drive circuit is used to make to current horizontal scanning line output scanning drive signal It is opened by the scanning switch pipe for all pixels that the current horizontal scanning line controls;The multiplexing control circuit is for successively The demultiplex control signal is exported to the control terminal of the multiplex switch pipe to open the multiplex switch pipe, each multiplexing Current data line charges to the pixel electrode in its corresponding described pixel during switching tube is opened;Stop exporting the multiplexing control Signal processed, the data drive circuit are used to adjust the voltage of the current data line to the corresponding pixel of specified multiplex switch pipe Charging voltage level;Stop exporting the scanning drive signal to the current horizontal scanning line.
In order to solve the above technical problems, another technical solution used in the present invention is: a kind of display is provided, it is described aobvious Show that device includes the driving device of display panel described above.
The beneficial effects of the present invention are: providing the charging/discharging thereof and driving device, display of a kind of display panel, pass through After stopping exporting demultiplex control signal, before stopping exporting scanning drive signal to current horizontal scanning line, dynamic changes data For line to the charging/discharging voltage level of pixel, can improve a certain multiplex switch pipe in current line and can not completely close leads to corresponding picture The problem of plain mistake charge and discharge, promote the display of image quality.
Detailed description of the invention
Fig. 1 is that the invention shows the equivalent circuit structure schematic diagrames of a dot structure in panel;
Fig. 2 is that the invention shows the flow diagrams of one embodiment of panel charging method;
Fig. 3 is that the invention shows the timing diagrams of the first pixel of panel charging embodiment;
Fig. 4 is that the invention shows the timing diagrams of the second pixel of panel charging embodiment;
Fig. 5 is that the invention shows the timing diagrams of panel third pixel charging embodiment;
Fig. 6 is the structural schematic diagram of one embodiment of driving device the invention shows panel;
Fig. 7 is the structural schematic diagram of one embodiment of inventive display.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is that the invention shows the schematic equivalent circuits of a dot structure in panel.As shown in Figure 1, The dot structure 10 includes: the first pixel 11, the second pixel 12 and third pixel 13.
First pixel 11 includes the first scanning switch pipe T1, the first pixel electrode R1 and the first multiplex switch pipe MUX1, the One multiplex switch pipe MUX1 control terminal is for receiving multiplexing first control signal.
Second pixel 12 includes the second scanning switch pipe T2, the second pixel electrode G1 and the second multiplex switch pipe MUX2, the Two multiplex switch pipe MUX2 control terminals are for receiving multiplexing second control signal.
First pixel 13 includes the first scanning switch pipe T3, the first pixel electrode B1 and third multiplex switch pipe MUX3, the The control terminal of three multiplex switch pipe MUX3 controls signal for receiving multiplexing third.
At least two pixels controlled in a line by same scan line pass through its multiplex switch pipe respectively and couple same data Line.In the present embodiment, the first pixel 11, the second pixel 12 and third pixel 13 pass through the first multiplex switch pipe MUX1 respectively, Second multiplex switch pipe MUX2 and third multiplex switch pipe MUX3 couples same data line, and Fig. 1 is only schematic diagram.Wherein, on The first pixel 11, the second pixel 12 and the third pixel 13 stated can be respectively red, green, blue, be not specifically limited herein.
In the present embodiment, same data line is by timesharing and multiplex switch pipe respectively to the first pixel 11, the second pixel 12 and third pixel 13 carry out charge and discharge.In simple terms, the first scanning switch pipe T1 of the first pixel 11 is driven to open, first is multiple It is high level so that the first multiplex switch pipe MUX1 opening, then fill the first pixel 11 by data line with control signal Electric discharge when charging complete, closes the first multiplex switch pipe MUX1.And successively the second pixel 12, third pixel 13 are carried out respectively Charge and discharge, process is similar, and details are not described herein again.However, may have multiplex switch when closing multiplex switch pipe The case where pipe can not completely close, data drive circuit will give multiple pixels to carry out charge and discharge simultaneously by data line at this time, Cause the charge and discharge of pixel to get muddled, seriously affects the display of picture.
Referring to Figure 2 together, 3,4,5, Fig. 2 is that the invention shows the signals of the process of one embodiment of panel charging method Figure.Fig. 3-5 is respectively that the invention shows the timing diagrams of the first, second, third pixel of panel charging embodiment.And the present embodiment In, defaulting to the charging order of row dot structure every in the display panel is the first pixel, the second pixel and third pixel, certainly In other embodiments, the charging order of pixel can exchange, and the present invention is not specifically limited.And it is filled to display panel Electricity or when putting, detects the multiplex switch pipe in the display panel in every row pixel with the presence or absence of abnormal in advance.Detect every row picture The corresponding multiplex switch pipe of element is with the presence or absence of the case where not completely closing.Specifically, it can be when factory with regard to pre- First multiplex switch pipe all in the display panel is detected, and will test result to be further stored in driving chip In, when plate carries out charge and discharge over there, the service condition of the multiplex switch pipe of every row pixel in panel is directly read, it is different if it exists Reason condition is then only needed in charge and discharge, changes the charging that data drive circuit has abnormal pixel to its multiplex switch pipe Mode.Wherein, the abnormal conditions of multiplex switch pipe are not limited solely to the case where multiplex switch Guan Wei is completely closed, or Multiplex switch pipe is damaged or cannot be closed, and the present invention is not specifically limited.
And detection structure specifically divides three kinds of situations:
A) detect whether the corresponding first multiplex switch pipe of all first pixels in the row completely closes;
B) detect whether the corresponding second multiplex switch pipe of all second pixels in the row completely closes;
C) detect whether the corresponding third multiplex switch pipe of all third pixels in the row completely closes.
S110, abnormal if it exists, Xiang Dangqian horizontal scanning line output scanning drive signal to be controlled by current horizontal scanning line All pixels scanning switch pipe open.
If reading in current line pixel, there is multiplex switch pipe to be abnormal.Charge and discharge is carried out to the display panel subsequent In electric process, when scanning signal CK is high level, the scanning switch pipe for all pixels that current horizontal scanning line is controlled is controlled Open, i.e., the third switching tube of the first switch tube of the first pixel, the second switch of the second pixel and third pixel respectively by It opens.
S120, successively to the control terminal of multiplex switch pipe output demultiplex control signal to open multiplex switch pipe, Mei Gefu Current data line charges to the pixel electrode in its corresponding pixel during being opened with switching tube.
When charging to the first pixel, the first multiplexed signals (the is inputted by the control terminal of the first multiplex switch pipe One multiplexed signals is high level), the first multiplex switch pipe is opened, during the first multiplex switch pipe is opened, current data line pair First pixel electrode charges to the first charging voltage level X.
After the first pixel electrode charging complete, the first multiplex switch pipe is closed.Then to the second pixel of the second pixel Electrode charges, and inputting the second multiplexed signals by the control terminal of the second multiplex switch pipe, (the second multiplexed signals is high electricity It is flat), the second multiplex switch pipe is opened, during the second multiplex switch pipe is opened, current data line charges to the second pixel electrode Electricity is to the second charging voltage level Y.
After the second pixel electrode charging complete, the second multiplex switch pipe is closed.To the third pixel electrode of third pixel It charges, third multiplexed signals (third multiplexed signals is high level) is inputted by the control terminal of third multiplex switch pipe, is beaten Third multiplex switch pipe is opened, during third multiplex switch pipe is opened, current data line charges to third to third pixel electrode Charging voltage level Z.After third pixel electrode charging complete, third multiplex switch pipe is closed.
S130, stops output demultiplex control signal, and the voltage for adjusting current data line is corresponding to abnormal multiplex switch pipe The charging voltage level of pixel.
Because the multiplex switch pipe of pixel has that exception is divided into three kinds:
A) the first multiplex switch pipe of the first pixel exists abnormal.
During charging to the second pixel and third pixel, the first pixel electrode because the first multiplex switch pipe without The phenomenon that method is easy to appear electric leakage with data line disconnection completely, and if the first pixel the first charging voltage X level less than second, Charging voltage level Y, Z of third pixel is also easy to that the first pixel electrode of the first pixel is caused to be charged by mistake, causes panel aobvious Show picture exception.Therefore to the row all pixels charging complete after, stop export the row in all pixels demultiplex control signal Later, stop to current horizontal scanning line export scanning drive signal before, (i.e. scanning signal line blanking period (HB, HBlank)), the first charging electricity of corresponding first pixel of the multiplex switch pipe of voltage Vdata to first of current data line is adjusted Level X is pressed, so that the voltage of the first pixel electrode is maintained at the first charging voltage level X.
B) the second multiplex switch pipe of the second pixel exists abnormal.
The same above situation of principle, the second multiplex switch pipe of the second pixel can not disconnect completely with data line and hold in current line Easily the phenomenon that leaking electricity, and if the second pixel the second charging voltage Y level less than third pixel charging voltage level Z, It is also easy to that the second pixel electrode of the second pixel is caused to be charged by mistake, causes Display panel picture abnormal.Therefore to all pictures of the row After plain charging complete, in stopping the output row after the demultiplex control signal of all pixels, stop defeated to current horizontal scanning line Out before scanning drive signal, (i.e. the line blanking period (HB, HBlank) of scanning signal) adjusts the voltage of current data line Vdata to corresponding second pixel of the second multiplex switch pipe the second charging voltage level Y so that the electricity of the second pixel electrode Pressure is maintained at the second charging voltage level Y.
C) the third multiplex switch pipe of third pixel exists abnormal.
After the row all pixels charging complete, stop the demultiplex control signal for exporting all pixels in the row.Stopping After exporting demultiplex control signal, before stopping exporting scanning drive signal to current horizontal scanning line, (the i.e. horizontal blanking of scanning signal Period (HB, HBlank)), adjust the voltage Vdata to the of the corresponding third pixel of third multiplex switch pipe of current data line Three charging voltage level Z, so that the voltage of third pixel electrode is maintained at third charging voltage level Z.
Wherein, the first charging voltage level X, the second charging voltage level Y and third charging voltage level Z are respectively first Charging potential when pixel, the second pixel and third pixel are normally shown.
In addition, if in the display panel multiplex switch pipe of pixel during preparatory detection there is no abnormal conditions should Method is also suitable, i.e., in the line blanking period of scanning signal, adjusts the voltage Vdata to first, second or the of current data line The charging voltage level of corresponding first, second or third pixel of three multiplex switch pipes, can prevent or avoid in advance the pixel Corresponding multiplex switch pipe is abnormal and leads to wrong the case where charging.
S140 stops exporting scanning drive signal to current horizontal scanning line.
When scanning drive signal CK is low level, all pixels keep respective charging voltage level in current line, directly It is again turned on to respective scanning switch pipe.
The discharge process of above-mentioned pixel is similar, and details are not described herein again.
In above embodiment, swept by after stopping exporting demultiplex control signal, stopping exporting to current horizontal scanning line Before retouching driving signal, dynamic changes data line to the charging/discharging voltage level of pixel, can improve a certain multiplexing in current line Switching tube can not completely close the problem of leading to respective pixel mistake charge and discharge, promote the display of image quality.
Referring to Fig. 6, Fig. 6 is that the invention shows the structural schematic diagrams of one embodiment of driving device of panel.Such as Fig. 6 institute Show, which includes: a plurality of scan line 21 being parallel to each other, a plurality of data line 22 vertical with scan line 21, multiple The pixel of array arrangement, the pixel of the array arrangement can be dot structure 10 as shown in Figure 1.
In addition, driving device 20 further include: scan drive circuit 23, for providing scanning drive signal to scan line 21.
Data drive circuit 24, for providing data voltage to the data line 22.
Multiplexing control circuit 25, for provide demultiplex control signal to multiplex switch pipe.
Wherein, scan drive circuit 24 is used to be swept by current line to current horizontal scanning line 21 output scanning drive signal The scanning switch pipe for retouching all pixels of the control of line 21 is opened, and multiplexing control circuit 25 is used for the successively control to multiplex switch pipe End output demultiplex control signal is to open multiplex switch pipe, and current data line 22 corresponds to it during each multiplex switch pipe is opened Pixel in pixel electrode charging;Stop output demultiplex control signal, data drive circuit 24 is for adjusting current data line 22 voltage stops exporting to current horizontal scanning line 21 and scan to the charging voltage level of the corresponding pixel of abnormal multiplex switch pipe Driving signal.
Referring to Fig. 7, Fig. 7 is the structural schematic diagram of one embodiment of inventive display.As shown in fig. 7, the display 30 include the driving devices 20 of any display panel in above embodiment, and the specific structure of the driving device 20 and Principle sees above description, and details are not described herein again.
In conclusion it should be readily apparent to one skilled in the art that the present invention provide a kind of display panel charging/discharging thereof and Driving device, display export turntable driving letter to current horizontal scanning line by stopping after stopping exporting demultiplex control signal Before number, dynamic changes data line to the charging/discharging voltage level of pixel, can improve in current line a certain multiplex switch pipe without Method completely closes the problem of leading to respective pixel mistake charge and discharge, promotes the display of image quality.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other Technical field is included within the scope of the present invention.

Claims (10)

1. a kind of charging/discharging thereof of display panel, which is characterized in that the display panel includes array substrate, the array base Plate includes a plurality of scan line being parallel to each other, a plurality of data line vertical with the scan line, the pixel of multiple array arrangements, often A pixel includes scanning switch pipe and pixel electrode, and at least partly described pixel further comprises a multiplex switch pipe, and Pass through its multiplex switch pipe respectively by least two pixels of the same scanning line traffic control and couple the same data line, The control terminal of the multiplex switch pipe is for receiving demultiplex control signal;
The described method includes:
Whether multiplex switch pipe described in pixel described in detection current line there is exception;
Abnormal if it exists, Xiang Dangqian horizontal scanning line output scanning drive signal to be controlled by the current horizontal scanning line all The scanning switch pipe of the pixel is opened;
Successively the demultiplex control signal is exported to open the multiplex switch pipe, each to the control terminal of the multiplex switch pipe Current data line charges to the pixel electrode in its corresponding described pixel during the multiplex switch pipe is opened;
Stop exporting the demultiplex control signal, adjusts the voltage of the current data line to the corresponding picture of specified multiplex switch pipe The charging voltage level of element;
Stop exporting the scanning drive signal to the current horizontal scanning line.
2. charging/discharging thereof according to claim 1, which is characterized in that the specified multiplex switch pipe is abnormal Multiplex switch pipe.
3. charging/discharging thereof according to claim 2, which is characterized in that the pixel further comprises: the first pixel, Two pixels and third pixel;
The multiplex switch pipe further comprises: the first multiplex switch pipe, the second multiplex switch pipe and third multiplex switch pipe;
Wherein, the first pixel described in every row receives the first demultiplex control signal by the control terminal of the first multiplex switch pipe, Second pixel receives the second demultiplex control signal by the control terminal of the second multiplex switch pipe, and the third pixel is logical The control terminal for crossing the third multiplex switch pipe receives third demultiplex control signal.
4. charging/discharging thereof according to claim 3, which is characterized in that if the first multiplex switch pipe is abnormal, The voltage of the current data line is then adjusted to the first charging electricity of corresponding first pixel of the first multiplex switch pipe Press level.
5. charging/discharging thereof according to claim 3, which is characterized in that if the second multiplex switch pipe is abnormal, The voltage of the current data line is then adjusted to the second charging electricity of corresponding second pixel of the second multiplex switch pipe Press level.
6. charging/discharging thereof according to claim 3, which is characterized in that if the third multiplex switch pipe is abnormal, The voltage of the current data line is then adjusted to the third charging electricity of the corresponding third pixel of the third multiplex switch pipe Press level.
7. charging/discharging thereof according to claim 3, which is characterized in that the charging voltage level of the pixel is the picture Charging potential when plain normal display.
8. charging/discharging thereof according to claim 1, which is characterized in that stop to described in the current horizontal scanning line output During scanning drive signal, the pixel keeps the respective charging voltage level.
9. a kind of driving device of display panel, which is characterized in that the display panel includes array substrate, the array substrate Including a plurality of scan line being parallel to each other, a plurality of data line vertical with the scan line, the pixel of multiple array arrangements, each The pixel includes scanning switch pipe and pixel electrode, and at least partly described pixel further comprises a multiplex switch pipe, same At least two identical pixels of the one scanning line traffic control pass through its multiplex switch pipe respectively and couple the same data line, The control terminal of the multiplex switch pipe is for receiving demultiplex control signal;The driving device includes:
Scan drive circuit, for providing scanning drive signal to the scan line;
Data drive circuit, for providing data voltage to the data line;
Multiplexing control circuit is used to provide the described demultiplex control signal to the multiplex switch pipe;
Wherein, the scan drive circuit is used to be swept by the current line to current horizontal scanning line output scanning drive signal The scanning switch pipe for retouching all pixels of line traffic control is opened;The multiplexing control circuit is used for successively to the multiplex switch The control terminal of pipe exports the demultiplex control signal to open the multiplex switch pipe, during each multiplex switch pipe is opened Current data line charges to the pixel electrode in its corresponding described pixel;Stop exporting the demultiplex control signal, the number The charging voltage for being used to adjust voltage to the corresponding pixel of abnormal multiplex switch pipe of the current data line according to driving circuit is quasi- Position;Stop exporting the scanning drive signal to the current horizontal scanning line.
10. a kind of display, which is characterized in that the display includes the driving dress of display panel as claimed in claim 9 It sets.
CN201710271284.1A 2017-04-24 2017-04-24 Charging/discharging thereof and driving device, the display of display panel Active CN106940990B (en)

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CN107633830B (en) * 2017-09-28 2020-04-28 深圳市华星光电技术有限公司 GOA circuit time sequence control method, Gate IC and display device
CN107526225B (en) * 2017-09-29 2020-10-09 深圳市华星光电技术有限公司 Discharging method and device of liquid crystal panel
TWI686785B (en) * 2018-11-19 2020-03-01 友達光電股份有限公司 Display device
US20240371322A1 (en) * 2022-03-23 2024-11-07 Fuzhou Boe Optoelectronics Technology Co., Ltd. Display substrate and method for driving same, and display apparatus

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