CN110176219A - Driving circuit, display panel and display device - Google Patents
Driving circuit, display panel and display device Download PDFInfo
- Publication number
- CN110176219A CN110176219A CN201910491802.XA CN201910491802A CN110176219A CN 110176219 A CN110176219 A CN 110176219A CN 201910491802 A CN201910491802 A CN 201910491802A CN 110176219 A CN110176219 A CN 110176219A
- Authority
- CN
- China
- Prior art keywords
- voltage
- driving
- drive module
- driving circuit
- display panel
- 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.)
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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
- G09G3/20—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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
Abstract
It includes: the first drive module that the present invention, which provides a kind of driving circuit, display panel and display device, the driving circuit, the first driving voltage for receiving input, drives display panel viewing area switching device to export the second driving voltage;Second drive module, third driving voltage for receiving input drive display panel non-display area switching device to export the 4th driving voltage;Wherein, first drive module and second drive module are electrically connected, and second driving voltage is equal with the 4th driving voltage swing, contrary.The present invention, to reduce the leakage current of driving circuit, reduces the uneven phenomenon of display panel display so that driving circuit voltage difference of the two ends is zero by adjusting the voltage of driving circuit between display panel viewing area and non-display area.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of driving circuits, display panel and display device.
Background technique
TFT (Thin Film Transistor) is the abbreviation of thin film transistor (TFT).TFT formula display screen is all kinds of notebook electricity
Mainstream display device on brain and desktop computer, each liquid crystal pixel point on such display screen is by being integrated in behind pixel
Thin film transistor (TFT) drive, therefore TFT formula display screen is also a kind of active matrix liquid crystal display device.It is best LCD color
One of color display, TFT formula display have many advantages, such as high-responsivity, high brightness, high contrast.Meanwhile TFT formula screen is also general
All over applied in the colour screen handset of middle and high end, point 65536 colors, 160,000 colors, 16,000,000 three kinds of colors, display effect is very outstanding.
Each liquid crystal pixel point on liquid crystal display is driven by thin film transistor (TFT) integrated behind, TFT-
LCD (Thin Film Transistor-LCD) is one kind of most liquid crystal displays.But in the display panel under the prior art, by
Leaky can be generated in TFT, display panel display can be made uneven.
Summary of the invention
The TFT display panel leakage current that the present invention is directed under the prior art is excessive, asks so that display panel display is uneven
Topic proposes a kind of driving circuit, display panel and display device, to solve the above problems.
In a first aspect, the application provides a kind of driving circuit, it is applied to display panel, the driving circuit includes:
First drive module, the first driving voltage for receiving input drive display surface to export the second driving voltage
Plate viewing area switching device;
Second drive module, third driving voltage for receiving input drive display surface to export the 4th driving voltage
Plate non-display area switching device;
Wherein, first drive module and second drive module are electrically connected, second driving voltage and institute
It is equal to state the 4th driving voltage swing, it is contrary.
Further, the driving circuit further includes Voltage stabilizing module, and first drive module passes through the Voltage stabilizing module
Connect second drive module, the Voltage stabilizing module for control first drive module and second drive module it
Between voltage so that the voltage between first drive module and second drive module reduces.
Further, the Voltage stabilizing module is resistance.
Further, first drive module further includes the first control module, and first control module is for generating
First driving signal adjusts the voltage at first drive module both ends, so that second driving voltage and the described 4th
Driving voltage is equal in magnitude, contrary.
Further, first control module is current source or resistance.
Further, second driving circuit further includes the second control module, and second control module is for generating
Second driving signal adjusts the voltage at second drive module both ends, so that second driving voltage is in the described 4th
Driving voltage is equal in magnitude, contrary.
Further, the driving circuit further include:
Third control module is located in first drive module, and the third control module is for generating third driving
Signal adjusts the voltage at first drive module both ends, so that second driving voltage and the 4th driving voltage
It is equal in magnitude, it is contrary;
4th control module is located in second drive module, and the 4th control module is for generating the 4th driving
Signal adjusts the voltage at first drive module both ends, so that second driving voltage and the 4th driving voltage
It is equal in magnitude, it is contrary.
Further, the driving circuit further includes capacitor, and the capacitor is used for storing electricity, so that display panel switchs
Device maintenance voltage when closed.
Second aspect, the application provide a kind of display panel, and the display panel includes described in any item drivings as above
Circuit.
The third aspect, the application provide a kind of display device, and the display device includes display panel as described above.
The utility model has the advantages that the present invention is made by the voltage of driving circuit between adjusting display panel viewing area and non-display area
Obtaining driving circuit voltage difference of the two ends is zero, to reduce the leakage current of driving circuit, reduces the uneven phenomenon of display panel display.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is one embodiment schematic diagram of driving circuit provided by the invention;
Fig. 2 is another embodiment schematic diagram of driving circuit provided by the invention;
Fig. 3 is another embodiment schematic diagram of driving circuit provided by the invention;
Fig. 4 is another embodiment schematic diagram of driving circuit provided by the invention;
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
Attached drawing and explanation are considered inherently illustrative, rather than restrictive.The similar list of structure in the figure
Member is with being given the same reference numerals.In addition, in order to understand and be convenient for description, the size and thickness of each component shown in the accompanying drawings
It is all arbitrarily shown, but the invention is not restricted to this.
In the accompanying drawings, for clarity, the thickness in layer, film, panel, region etc. is exaggerated.In the accompanying drawings, in order to understand
Conveniently and convenient for description, the thickness of some layer and region is exaggerated.It should be noted that ought such as layer, film, region or substrate
When component is referred to as " " another component "upper".The component can directly on another component, or there may also be
Intermediate module.
In addition, in the description, unless explicitly described as opposite, otherwise word " comprising " will be understood as meaning to wrap
The component is included, but is not excluded for any other component.Furthermore in the description, " ... on " mean to be located on target element
Side or lower section, and be not intended to must be positioned on the top based on gravity direction.
Further to illustrate the present invention to reach the taken technical means and efficacy of predetermined invention, below in conjunction with attached drawing
And preferred embodiment, to driving circuit proposed according to the present invention, display panel and display device, specific embodiment, knot
Structure, feature and its effect, detailed description are as follows.
TFT display panel under the prior art, TFT leaky is serious, so that the display of TFT display panel is uneven, in order to
This problem is solved, the application provides a kind of driving circuit, which is applied to display panel, as shown in Figure 1, being this hair
One embodiment schematic diagram of driving circuit of bright offer, the driving circuit include:
First drive module 10, the first driving voltage for receiving input, to export the driving display of the second driving voltage
Display panel area switching device;
Second drive module 11, third driving voltage for receiving input, to export the driving display of the 4th driving voltage
Panel non-display area switching device;
Wherein, first drive module 10 is electrically connected with second drive module 11, second driving voltage
It is equal with the 4th driving voltage swing, it is contrary.
Driving circuit provided by the present application, by the electricity for adjusting driving circuit between display panel viewing area and non-display area
Pressure, to reduce the leakage current of driving circuit, reduces display panel display unevenness so that driving circuit voltage difference of the two ends is zero
Phenomenon.
In some embodiments of the invention, which can also include Voltage stabilizing module 12, the first drive module
10 are connected to the second drive module 11 by the Voltage stabilizing module 12, and the Voltage stabilizing module 12 is for controlling 10 He of the first drive module
Voltage difference between second drive module 11, if there are voltages between the two for the first drive module 10 and the second drive module 11
Difference, then the voltage difference is adjusted by the Voltage stabilizing module 12 so that the first drive module 10 and the second drive module 11 it
Between voltage difference be reduced to zero, i.e. between the first drive module 10 and the second drive module 11 be not present voltage difference.
In some embodiments of the invention, which can be resistance, at this point, if the first drive module 10 with
There are voltage differences between the two for second drive module 11, then voltage difference consumption is being arranged in the first drive module 10 and second
Voltage stabilizing module 12 between drive module 11 is on resistance.
Further, which can be variable resistance, i.e., the resistance value of resistance is with the first drive module 10 and the second drive
The change of 11 voltage difference between dynamic model block and change, and then preferably adjust the first drive module 10 and the second drive module 11
Between voltage difference.
As shown in Fig. 2, being another embodiment schematic diagram of driving circuit provided by the invention, in some embodiments of the present invention
In, the first drive module 10 can also include the first control module 101, first control module 101 and the first drive module
10 are electrically connected, which drives the first drive module 10 for generating the first driving signal, adjust first and drive
The voltage at dynamic model block both ends, the first drive module 10 generate the second driving voltage to drive the derailing switch of display panel viewing area
Part.And the first driving signal that the first control module 101 generates makes the voltage of the second driving voltage and the 4th driving voltage
It is equal in magnitude, it is contrary.
As shown in figure 3, being another embodiment schematic diagram of driving circuit provided by the invention, in other implementations of the invention
In example, the second drive module 11 can also include the second control module 111, second control module 111 and the second driving mould
Block 11 is electrically connected, which drives the second drive module 11 for generating the second driving signal, adjusts second
The voltage at drive module both ends, the second drive module 11 generate the 4th driving voltage to drive the switch of display panel non-display area
Device.And the second driving signal that the second control module 111 generates makes the electricity of the 4th driving voltage and the second driving voltage
Press it is equal in magnitude, it is contrary, i.e. between the first drive module 10 and the second drive module 11 be not present voltage difference.
In the above-described embodiments, which can be the first current source, and the second control module 111 can be with
For the second current source, and the first current source can be different from the size of current of the second current source, and direction can also be different.
As shown in figure 4, being another embodiment schematic diagram of driving circuit provided by the invention, in the other embodiment of the present invention
In, which can also include:
Third control module 102 is located in first drive module 10, and third control module 102 and described first is driven
Dynamic model block 10 is electrically connected, and the third control module 102 is for generating third driving signal, described in third driving signal adjusting
The voltage at 10 both ends of the first drive module, so that the second driving voltage is equal with the voltage swing of the 4th driving voltage, direction phase
Instead, i.e. voltage difference is not present between the first drive module 10 and the second drive module 11.
4th control module 112 is located in second drive module 11, the 4th control module 112 and second control
Molding block 11 is electrically connected, and the 4th control module 112 is for generating fourth drive signal, described in fourth drive signal adjusting
The voltage at 11 both ends of the second drive module, so that the second driving signal is equal with the voltage swing of the 4th driving voltage, direction phase
Instead, i.e. voltage difference is not present between the first drive module 10 and the second drive module 11.
In an embodiment of the present invention, which can be third current source, and the 4th control module can also
Think the 4th current source.And third current source can be different from the size of current of the 4th current source, direction can also be different.
On the basis of the above embodiments, in some other embodiments of the invention, which can also include
Storage capacitance, which is used for the storing electricity when display panel switching device is opened, so that display panel switching device
It can carry out maintenance voltage by the electricity of storage capacitance storage when closed to stablize.
The present invention also provides a kind of display panel, which includes described in any item driving circuits as above.
Display panel provided by the invention, by the electricity for adjusting driving circuit between display panel viewing area and non-display area
Pressure, to reduce the leakage current of driving circuit, reduces display panel display unevenness so that driving circuit voltage difference of the two ends is zero
Phenomenon.
Above-mentioned purpose according to the present invention proposes a kind of display panel, including above-mentioned driving circuit.The present embodiment provides
Display panel working principle, consistent with the embodiment working principle of aforementioned driving circuit, specific structure relationship and work are former
Reason is referring to aforementioned driving circuit embodiment, and details are not described herein again.
Present aspect additionally provides a kind of display device, which includes display panel as described above.
Display device provided by the invention is driven between display panel viewing area and non-display area by adjusting in display device
The voltage of dynamic circuit, to reduce the leakage current of driving circuit, reduces display panel so that driving circuit voltage difference of the two ends is zero
Show uneven phenomenon.
Above-mentioned purpose according to the present invention proposes a kind of display device, including above-mentioned display panel.The present embodiment provides
Display device working principle, consistent with the embodiment working principle of aforementioned display panel, specific structure relationship and work are former
Reason is referring to aforementioned display panel embodiment, and details are not described herein again.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of driving circuit, which is characterized in that be applied to display panel, the driving circuit includes:
First drive module, the first driving voltage for receiving input are aobvious to export the second driving voltage driving display panel
Show area's switching device;
Second drive module, third driving voltage for receiving input are non-to export the 4th driving voltage driving display panel
Viewing area switching device;
Wherein, first drive module and second drive module are electrically connected, second driving voltage and described the
Four driving voltage swings are equal, contrary.
2. driving circuit according to claim 1, which is characterized in that the driving circuit further includes Voltage stabilizing module, described
First drive module connects second drive module by the Voltage stabilizing module, and the Voltage stabilizing module is for controlling described first
Voltage between drive module and second drive module so that first drive module and second drive module it
Between voltage reduce.
3. driving circuit according to claim 2, which is characterized in that the Voltage stabilizing module is resistance.
4. driving circuit according to claim 1, which is characterized in that first drive module further includes the first control mould
Block, first control module adjust the voltage at first drive module both ends for the first driving signal of generation, so that
Second driving voltage is equal with the 4th driving voltage swing, contrary.
5. driving circuit according to claim 4, which is characterized in that first control module is current source or resistance.
6. driving circuit according to claim 1, which is characterized in that second driving circuit further includes the second control mould
Block, second control module adjust the voltage at second drive module both ends for the second driving signal of generation, so that
Second driving voltage is equal in the 4th driving voltage swing, contrary.
7. driving circuit according to claim 1, which is characterized in that the driving circuit further include:
Third control module is located in first drive module, and the third control module is used to generate third driving signal,
The voltage at first drive module both ends is adjusted, so that second driving voltage and the 4th driving voltage swing phase
Deng contrary;
4th control module is located in second drive module, and the 4th control module is used to generate fourth drive signal,
The voltage at first drive module both ends is adjusted, so that second driving voltage and the 4th driving voltage swing phase
Deng contrary.
8. driving circuit according to claim 1, which is characterized in that the driving circuit further includes capacitor, the capacitor
For storing electricity, so that display panel switching device maintenance voltage when closed.
9. a kind of display panel, which is characterized in that the display panel includes driving as claimed in any one of claims 1 to 8
Circuit.
10. a kind of display device, which is characterized in that the display device includes display panel as claimed in claim 9.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910491802.XA CN110176219A (en) | 2019-06-06 | 2019-06-06 | Driving circuit, display panel and display device |
PCT/CN2019/101479 WO2020244057A1 (en) | 2019-06-06 | 2019-08-20 | Drive circuit, display panel and display apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910491802.XA CN110176219A (en) | 2019-06-06 | 2019-06-06 | Driving circuit, display panel and display device |
Publications (1)
Publication Number | Publication Date |
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CN110176219A true CN110176219A (en) | 2019-08-27 |
Family
ID=67697120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201910491802.XA Pending CN110176219A (en) | 2019-06-06 | 2019-06-06 | Driving circuit, display panel and display device |
Country Status (2)
Country | Link |
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CN (1) | CN110176219A (en) |
WO (1) | WO2020244057A1 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3520863B2 (en) * | 2000-10-04 | 2004-04-19 | セイコーエプソン株式会社 | Image signal correction circuit, correction method thereof, liquid crystal display device, and electronic device |
KR101294321B1 (en) * | 2006-11-28 | 2013-08-08 | 삼성디스플레이 주식회사 | Liquid crystal display |
KR20080064928A (en) * | 2007-01-06 | 2008-07-10 | 삼성전자주식회사 | Liquid crystal display and method for eliminating afterimage thereof |
JP4670834B2 (en) * | 2007-05-21 | 2011-04-13 | エプソンイメージングデバイス株式会社 | ELECTRO-OPTICAL DEVICE, ELECTRIC OPTICAL DEVICE DRIVE CIRCUIT, AND ELECTRIC DEVICE |
JP2010032804A (en) * | 2008-07-29 | 2010-02-12 | Japan Radio Co Ltd | Lcd controller |
KR101693088B1 (en) * | 2014-12-31 | 2017-01-04 | 엘지디스플레이 주식회사 | Display panel having a scan driver and method of operating the same |
CN108520723A (en) * | 2018-04-13 | 2018-09-11 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display |
-
2019
- 2019-06-06 CN CN201910491802.XA patent/CN110176219A/en active Pending
- 2019-08-20 WO PCT/CN2019/101479 patent/WO2020244057A1/en active Application Filing
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WO2020244057A1 (en) | 2020-12-10 |
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Application publication date: 20190827 |