CN106057158B - Multivoltage generation circuit and liquid crystal display device - Google Patents
Multivoltage generation circuit and liquid crystal display device Download PDFInfo
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- CN106057158B CN106057158B CN201610623710.9A CN201610623710A CN106057158B CN 106057158 B CN106057158 B CN 106057158B CN 201610623710 A CN201610623710 A CN 201610623710A CN 106057158 B CN106057158 B CN 106057158B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 21
- 230000005669 field effect Effects 0.000 claims description 80
- 239000004065 semiconductor Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- 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
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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)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of multivoltage generation circuit, including：Voltage input end, for input voltage signal；Voltage output end, for outputting common voltage；Public voltage generating circuit is connected between the voltage input end and the voltage output end, for forming the first common electric voltage or the second common electric voltage；Control terminal is connected with the public voltage generating circuit, for the voltage output end to be controlled to export first common electric voltage or second common electric voltage；Wherein, when the control terminal input low level signal, which forms the first common electric voltage, which exports the first common electric voltage；When the control terminal input high level signal, which forms the second common electric voltage, which exports the second common electric voltage.The present invention also provides a kind of liquid crystal display devices, input different voltage signals by the control terminal and realize the output of two groups of common electric voltages, and adjust respective common electric voltage respectively by variable resistor.
Description
Technical field
The invention belongs to technical field of integrated circuits, more particularly, to a kind of multivoltage generation circuit and liquid crystal display
Device.
Background technology
In liquid crystal display device (Liquid Crystal Display, LCD), in order to complete data scanning, it is necessary to thin
Film transistor (Thin Film Transistor, TFT) unlatching/closing in turn.When TFT is opened, data pass through source drive
Device is loaded into show electrode, and the voltage difference between show electrode and public electrode remakes realizes display for liquid crystal, it is therefore desirable to control
The cut-in voltage of LCD processed closes voltage and the voltage being added on public electrode.
Generally using two groups of Gamma voltages, one group of VCOM voltage in present LCD panel driving.
It is now higher and higher to the demand of image quality, similarly there are demand, one group of this when to other patterns
VCOM is difficult to meet the needs of all pictures, especially for VCOM in current programme simply according to 2D pattern 0-255 grayscale
Under flicker pictures adjust, it is difficult to meet including 3D patterns the interior isotype or picture the needs of.
The content of the invention
It is an object of the invention to provide a kind of multivoltage generation circuit and liquid crystal display devices.
According to an aspect of the present invention, a kind of multivoltage generation circuit is provided, including：Voltage input end, for inputting electricity
Press signal；Voltage output end, for outputting common voltage；Public voltage generating circuit, is connected to voltage input end and voltage is defeated
Between outlet, for forming the first common electric voltage or the second common electric voltage；Control terminal connects with the public voltage generating circuit
It connects, for the voltage output end to be controlled to export the first common electric voltage or the second common electric voltage；Wherein, when control terminal inputs low electricity
During ordinary mail, the public voltage generating circuit forms the first common electric voltage, and voltage output end exports the first common electric voltage；Work as control
During input high level signal in end processed, the public voltage generating circuit forms the second common electric voltage, voltage output end output second
Common electric voltage.
Preferably, the public voltage generating circuit includes the first adjustable resistance, the second adjustable resistance, 3rd resistor, the
One field-effect transistor, the second field-effect transistor, the 3rd field-effect transistor, the first diode and the second diode, wherein,
First adjustable resistance is connected between voltage input end and ground terminal；The source electrode of first field-effect transistor and the first adjustable resistance
Adjustable side connection, drain electrode be connected by the second diode with voltage output end, the drain electrode of grid and the second field-effect transistor
Connection；The source electrode of second field-effect transistor is connected with voltage input end, and drain electrode is connected by the second adjustable resistance with ground terminal,
Grid is connected with the drain electrode of the 3rd field-effect transistor；The source electrode of 3rd field-effect transistor is connected with ground terminal, and drain electrode passes through
3rd resistor is connected with voltage input end, and grid is connected with control terminal；First diode is connected to the adjusting of the second adjustable resistance
Between end and voltage output end.
Preferably, the first field-effect transistor and the second field-effect transistor are P-channel enhancement type metal-oxide-semiconductor.
Preferably, the 3rd field-effect transistor is the enhanced metal-oxide-semiconductor of N-channel.
Preferably, the size of the first common electric voltage changes with the movement of the adjustable side of the first adjustable resistance.
Preferably, the size of the second common electric voltage changes with the movement of the adjustable side of the second adjustable resistance.
According to another aspect of the present invention, a kind of liquid crystal display device is provided, including data drive circuit, multiple pixels electricity
Pole, multiple columns of data lines, public electrode and multivoltage generation circuit, the data drive circuit apply data by multiple columns of data lines
For voltage on multiple pixel electrodes, the multivoltage generation circuit applies common electric voltage on the public electrode, wherein, it is described
Multivoltage generation circuit includes：Voltage input end, for input voltage signal；Voltage output end, for outputting common voltage；It is public
Common voltage generation circuit, is connected between voltage input end and voltage output end, for forming the first common electric voltage or the second public affairs
Common voltage；Control terminal is connected with the multivoltage generation circuit, for the voltage output end to be controlled to export the first common electric voltage
Or second common electric voltage；Wherein, when control terminal input low level signal, it is public that the public voltage generating circuit forms first
Voltage, voltage output end export the first common electric voltage；When control terminal input high level signal, the public voltage generating circuit
The second common electric voltage is formed, voltage output end exports the second common electric voltage.
Preferably, the public voltage generating circuit includes the first adjustable resistance, the second adjustable resistance, 3rd resistor, the
One field-effect transistor, the second field-effect transistor, the 3rd field-effect transistor, the first diode and the second diode, wherein,
First adjustable resistance is connected between voltage input end and ground terminal；The source electrode of first field-effect transistor and the first adjustable resistance
Adjustable side connection, drain electrode be connected by the second diode with voltage output end, the drain electrode of grid and the second field-effect transistor
Connection；The source electrode of second field-effect transistor is connected with voltage input end, and drain electrode is connected by the second adjustable resistance with ground terminal,
Grid is connected with the drain electrode of the 3rd field-effect transistor；The source electrode of 3rd field-effect transistor is connected with ground terminal, and drain electrode passes through
3rd resistor is connected with voltage input end, and grid is connected with control terminal；First diode is connected to the adjusting of the second adjustable resistance
Between end and voltage output end.
Preferably, the first field-effect transistor and the second field-effect transistor are P-channel enhancement type metal-oxide-semiconductor；3rd effect
It is the enhanced metal-oxide-semiconductor of N-channel to answer transistor.
Preferably, the size of the first common electric voltage changes with the movement of the adjustable side of the first adjustable resistance；Second is public
The size of common voltage changes with the movement of the adjustable side of the second adjustable resistance.
Multivoltage generation circuit and liquid crystal display device provided by the invention, different voltage signals is inputted by control terminal
It realizes the output of two groups of common electric voltages, and adjusts respective common electric voltage respectively by variable resistor.
Description of the drawings
By the description referring to the drawings to the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the electrical block diagram of the liquid crystal display device provided according to embodiments of the present invention；
Fig. 2 shows a kind of particular circuit configurations signal of the multivoltage generation circuit provided according to embodiments of the present invention
Figure.
Specific embodiment
Hereinafter reference will be made to the drawings is more fully described various embodiments of the present invention.In various figures, identical element
It is represented using same or similar reference numeral.For the sake of clarity, the various pieces in attached drawing are not necessarily to scale.
The present invention can be presented in a variety of manners, some of them example explained below.
Fig. 1 shows the electrical block diagram of the liquid crystal display device provided according to embodiments of the present invention.Such as Fig. 1 institutes
Show, shown liquid crystal display device includes control circuit 11, scan drive circuit 12, data drive circuit 13, multivoltage and generates electricity
Scan line 15, the multiple row that road 14, multirow are mutually parallel be mutually parallel and respectively with the scan line 15 insulation intersect data cable 16,
Multiple neighbouring scan lines 15 and the thin film transistor (TFT) 17, multiple pixel electrodes 18 and multiple pixels of 16 infall of data cable
Public electrode 19 that electrode 18 is oppositely arranged and the liquid crystal molecule being clipped between pixel electrode 18 and public electrode 19 (do not show in figure
Go out).
Control circuit 11 drives the scan drive circuit 12, the data drive circuit 13 and multivoltage generation circuit
14 work.For driving fine scanning line 15, data drive circuit 14 is used to drive multi-column data the scan drive circuit 12
Line 16, the multivoltage generation circuit 14 are used to drive public electrode 19.The grid of each thin film transistor (TFT) 17, which is connected to, to be swept
Line is retouched, the source electrode of each thin film transistor (TFT) 17 is connected to a data cable 16, and the drain electrode of each thin film transistor (TFT) 17 is connected to a picture
Plain electrode 18.
When the liquid crystal display 10 works normally, which receives extraneous signal, and sends control signal
Control the scan drive circuit 12, the data drive circuit 13 and the multivoltage generation circuit 14.Under control signal control,
The scan drive circuit 12, which exports scanning voltage and passes through the fine scanning line 15, loads grid in corresponding thin film transistor (TFT) 17
On extremely, corresponding thin film transistor (TFT) 17 is opened, which simultaneously passes through the multiple columns of data lines
16 loadings are on the source electrode of corresponding thin film transistor (TFT) 17, if the thin film transistor (TFT) 17 is in opening state, the number at this time
The drain electrode of the thin film transistor (TFT) 17 is sent to according to voltage and is loaded on the pixel electrode 18.The multivoltage generation circuit 14 is simultaneously
It generates a common electric voltage and loads on the public electrode 19, thus can be generated between the pixel electrode 18 and the public electrode 19
One electric field is to control the rotation of liquid crystal molecule, so as to fulfill image display.
Fig. 2 shows a kind of particular circuit configurations signal of the multivoltage generation circuit provided according to embodiments of the present invention
Figure.As shown in Fig. 2, the multivoltage generation circuit 14, including voltage input end Vin, voltage output end Vout, common electric voltage production
Raw circuit 141 and control terminal Control.
Wherein, voltage input end Vin, for input voltage signal；Voltage output end Vout, for outputting common voltage；
Public voltage generating circuit 141 is connected between voltage input end Vin and voltage output end Vout, public for forming first
Voltage Vcom1 or the second common electric voltage Vcom2；Control terminal Control is connected with the public voltage generating circuit 141, is used for
Control the voltage output end Vout outputs first common electric voltage Vcom1 or the second common electric voltage Vcom2.
In the present embodiment, public voltage generating circuit 141 includes the first adjustable resistance R1, the second adjustable resistance R2, the
Three resistance R3, the first field-effect transistor Q1, the second field-effect transistor Q2, the 3rd field-effect transistor Q3, the first diode
D1 and the second diode D2.
Wherein, the first adjustable resistance R1 is connected between voltage input end Vin and ground terminal GND.
The source S of first field-effect transistor Q1 is connected with the adjustable side of the first adjustable resistance R1, and drain D passes through the two or two
Pole pipe D2 is connected with voltage output end Vout, and grid G is connected with the drain D of the second field-effect transistor Q2.
The source S of second field-effect transistor Q2 is connected with voltage input end Vin, and drain D passes through the second adjustable resistance R2
It is connected with ground terminal GND, grid G is connected with the drain D of the 3rd field-effect transistor Q3.
The source S of 3rd field-effect transistor Q3 is connected with ground terminal GND, and drain D is defeated by 3rd resistor R3 and voltage
Enter Vin is held to connect, grid G is connected with control terminal Control.
First diode D1 is connected between the adjustable side of the second adjustable resistance R2 and voltage output end Vout.
In the present embodiment, the first field-effect transistor Q1 and the second field-effect transistor Q2 is P-channel enhancement type crystal
It manages (PMOS transistor), the 3rd field-effect transistor Q3 is N-channel enhancement transistor (NMOS transistor).
For PMOS transistor, there is cut-in voltage UGS(th), wherein, UGS(th)<0.Work as UGS<UGS(th)When, PMOS transistor
It is in the conduction state；Work as UGS>UGS(th)When, PMOS transistor is in cut-off state.
For NMOS transistor, there is cut-in voltage UGS(th), wherein, UGS(th)>0.Work as UGS>UGS(th)When, NMOS transistor
It is in the conduction state；Work as UGS<UGS(th)When, NMOS transistor is in cut-off state.
In the present embodiment, when control terminal Control input low level signals, the voltage of 0V, the 3rd effect are such as inputted
Answer the voltage U between the grid and source electrode of transistor Q3GS<UGS(th), the 3rd field-effect transistor Q3 closings at this time；Cause second
The grid of field-effect transistor Q2 is connected with Input voltage terminal Vin, is high level, the grid of the second field-effect transistor Q2 and source
Voltage U between poleGS>UGS(th), the second field-effect transistor Q2 closings at this time；Cause the grid of the first field-effect transistor Q1
It is connected with ground terminal GND, for low level, the voltage U between the grid and source electrode of the first field-effect transistor Q1GS<UGS(th), this
When the first field-effect transistor Q1 open, be equivalent to the first variable resistor R1 be connected to voltage input end Vin and ground terminal GND it
Between, the adjustable side of the first variable resistor R1 is connected by the second diode D2 with output end vo ut.The common electric voltage production at this time
Raw circuit 141 forms the first common electric voltage Vcom1, and voltage output end Vout exports the first common electric voltage Vcom1.Wherein, first
The size of common electric voltage Vcom1 changes with the movement of the adjustable side of the first adjustable resistance R1.
When control terminal Control input high level signals, 3.3V voltages, the grid of the 3rd field-effect transistor Q3 are such as inputted
Voltage U between pole and source electrodeGS>UGS(th), at this time the 3rd field-effect transistor Q3 open；Cause the second field-effect transistor Q2
Grid be connected with ground terminal GND, be low level, the voltage U between the grid and source electrode of the second field-effect transistor Q2GS<
UGS(th), at this time the second field-effect transistor Q2 open；Cause the grid of the first field-effect transistor Q1 and voltage input end Vin
Connection, for high level, the voltage U between the grid and source electrode of the first field-effect transistor Q1GS>UGS(th), the first field-effect at this time
Transistor Q1 is closed, and is equivalent to the second adjustable resistance R2 and is connected between voltage input end Vin and ground terminal GND, second is variable
The adjustable side of resistance R2 is connected by the first diode D1 with output end vo ut.The public voltage generating circuit 141 forms the
Two common electric voltage Vcom2, voltage output end Vout export the second common electric voltage Vcom2.Wherein, the second common electric voltage Vcom2
Size changes with the movement of the adjustable side of the second adjustable resistance R2.
Multivoltage generation circuit and liquid crystal display device provided by the invention, different voltage signals is inputted by control terminal
It realizes the output of two groups of common electric voltages, and adjusts respective common electric voltage respectively by variable resistor.
According to the embodiment of the present invention as described above, these embodiments are there is no all details of detailed descriptionthe, also not
It is only the specific embodiment to limit the invention.Obviously, as described above, can make many modifications and variations.This explanation
Book is chosen and specifically describes these embodiments, is in order to preferably explain the principle of the present invention and practical application, so that affiliated
Technical field technical staff can be used using modification of the invention and on the basis of the present invention well.The protection model of the present invention
The scope that the claims in the present invention are defined should be subject to by enclosing.
Claims (10)
1. a kind of multivoltage generation circuit, which is characterized in that including：
Voltage input end, for input voltage signal；
Voltage output end, for outputting common voltage；
Public voltage generating circuit is connected between the voltage input end and the voltage output end, public for forming first
Common voltage or the second common electric voltage；
Control terminal is connected with the public voltage generating circuit, for controlling the voltage output end output described first public
Voltage or second common electric voltage；
Wherein, when the control terminal input low level signal, the public voltage generating circuit forms the first common electric voltage, institute
It states voltage output end and exports the first common electric voltage；
When the control terminal input high level signal, the public voltage generating circuit forms the second common electric voltage, the electricity
Output terminal is pressed to export the second common electric voltage.
2. multivoltage generation circuit according to claim 1, which is characterized in that the public voltage generating circuit includes the
One adjustable resistance, the second adjustable resistance, 3rd resistor, the first field-effect transistor, the second field-effect transistor, the 3rd field-effect
Transistor, the first diode and the second diode,
Wherein, first adjustable resistance is connected between the voltage input end and ground terminal；
The source electrode of first field-effect transistor is connected with the adjustable side of first adjustable resistance, and first field-effect is brilliant
The drain electrode of body pipe is connected by second diode with the voltage output end, the grid of first field-effect transistor with
The drain electrode connection of second field-effect transistor；
The source electrode of second field-effect transistor is connected with the voltage input end, the drain electrode of second field-effect transistor
It is connected by second adjustable resistance with ground terminal, the grid of second field-effect transistor is brilliant with the 3rd field-effect
The drain electrode of body pipe is connected；
The source electrode of 3rd field-effect transistor is connected with ground terminal, and the drain electrode of the 3rd field-effect transistor passes through described
3rd resistor is connected with the voltage input end, and the grid of the 3rd field-effect transistor is connected with the control terminal；
First diode is connected between adjustable side and the voltage output end of second adjustable resistance.
3. multivoltage generation circuit according to claim 2, which is characterized in that the first field-effect transistor and second effect
It is P-channel enhancement type metal-oxide-semiconductor to answer transistor.
4. multivoltage generation circuit according to claim 3, which is characterized in that the 3rd field-effect transistor increases for N-channel
Strong type metal-oxide-semiconductor.
5. multivoltage generation circuit according to claim 4, which is characterized in that the size of first common electric voltage with
The movement of the adjustable side of first adjustable resistance and change.
6. multivoltage generation circuit according to claim 5, which is characterized in that the size of second common electric voltage with
The movement of the adjustable side of second adjustable resistance and change.
7. a kind of liquid crystal display device, which is characterized in that including data drive circuit, multiple pixel electrodes, multiple columns of data lines, public affairs
Common electrode and multivoltage generation circuit, the data drive circuit apply data voltage described more by the multiple columns of data lines
On a pixel electrode, the multivoltage generation circuit applies common electric voltage on the public electrode,
Wherein, the multivoltage generation circuit includes：
Voltage input end, for input voltage signal；
Voltage output end, for outputting common voltage；
Public voltage generating circuit is connected between the voltage input end and the voltage output end, public for forming first
Common voltage or the second common electric voltage；
Control terminal is connected with the multivoltage generation circuit, for the voltage output end to be controlled to export first common electrical
Pressure or second common electric voltage；
When the control terminal input low level signal, the public voltage generating circuit forms first common electric voltage, institute
It states voltage output end and exports first common electric voltage；When the control terminal input high level signal, the common electric voltage production
Raw circuit forms second common electric voltage, and the voltage output end exports second common electric voltage.
8. liquid crystal display device according to claim 7, which is characterized in that the public voltage generating circuit includes first
Adjustable resistance, the second adjustable resistance, 3rd resistor, the first field-effect transistor, the second field-effect transistor, the 3rd field-effect are brilliant
Body pipe, the first diode and the second diode,
Wherein, first adjustable resistance is connected between the voltage input end and ground terminal；
The source electrode of first field-effect transistor is connected with the adjustable side of first adjustable resistance, and first field-effect is brilliant
The drain electrode of body pipe is connected by second diode with the voltage output end, the grid of first field-effect transistor with
The drain electrode connection of second field-effect transistor；
The source electrode of second field-effect transistor is connected with the voltage input end, the drain electrode of second field-effect transistor
It is connected by second adjustable resistance with ground terminal, the grid of second field-effect transistor is brilliant with the 3rd field-effect
The drain electrode of body pipe is connected；
The source electrode of 3rd field-effect transistor is connected with ground terminal, and the drain electrode of the 3rd field-effect transistor passes through described
3rd resistor is connected with the voltage input end, and the grid of the 3rd field-effect transistor is connected with the control terminal；
First diode is connected between adjustable side and the voltage output end of second adjustable resistance.
9. liquid crystal display device according to claim 8, which is characterized in that the first field-effect transistor and the second field-effect
Transistor is P-channel enhancement type metal-oxide-semiconductor；3rd field-effect transistor is the enhanced metal-oxide-semiconductor of N-channel.
10. liquid crystal display device according to claim 9, which is characterized in that the size of first common electric voltage with
The movement of the adjustable side of first adjustable resistance and change；The size of second common electric voltage is with second adjustable electric
The movement of the adjustable side of resistance and change.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610623710.9A CN106057158B (en) | 2016-08-02 | 2016-08-02 | Multivoltage generation circuit and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610623710.9A CN106057158B (en) | 2016-08-02 | 2016-08-02 | Multivoltage generation circuit and liquid crystal display device |
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| CN106057158B true CN106057158B (en) | 2018-05-29 |
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| CN107482755B (en) * | 2017-08-10 | 2020-09-22 | 合肥联宝信息技术有限公司 | Power switching method and switching circuit of electronic equipment |
| CN116364017A (en) * | 2023-03-09 | 2023-06-30 | 江西兴泰科技股份有限公司 | Circuit structure for increasing output voltage level of electronic paper |
| CN119559912B (en) * | 2024-12-19 | 2025-06-10 | 安徽煜图科技有限公司 | Cholesteric liquid crystal display driving framework and driving method thereof |
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| CN101447177A (en) * | 2009-01-05 | 2009-06-03 | 友达光电股份有限公司 | Display capable of actively adjusting driving voltage, voltage compensation circuit and driving method |
| CN104424897A (en) * | 2013-08-20 | 2015-03-18 | 联咏科技股份有限公司 | Driving method of multiple common electrodes and display device |
Family Cites Families (2)
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| KR100463601B1 (en) * | 2001-12-24 | 2004-12-29 | 엘지.필립스 엘시디 주식회사 | Common voltage generation circuit of Liquid Crystal Display Device |
| TWI449022B (en) * | 2011-07-11 | 2014-08-11 | Novatek Microelectronics Corp | Common voltage driving method, common voltage control apparatus, and display driving circuit |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447177A (en) * | 2009-01-05 | 2009-06-03 | 友达光电股份有限公司 | Display capable of actively adjusting driving voltage, voltage compensation circuit and driving method |
| CN104424897A (en) * | 2013-08-20 | 2015-03-18 | 联咏科技股份有限公司 | Driving method of multiple common electrodes and display device |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: Infovision Optoelectronics (Kunshan) Co.,Ltd. |
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