CN104882104B - A kind of liquid crystal display panel and device - Google Patents
A kind of liquid crystal display panel and device Download PDFInfo
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- CN104882104B CN104882104B CN201510237560.3A CN201510237560A CN104882104B CN 104882104 B CN104882104 B CN 104882104B CN 201510237560 A CN201510237560 A CN 201510237560A CN 104882104 B CN104882104 B CN 104882104B
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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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Power Engineering (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of liquid crystal display panel and device, and the liquid crystal display panel includes drive circuit, and wherein drive circuit includes：Power module, for being input into initial voltage to the public electrode；And feedback unit, for according to the virtual voltage on the public electrode, the initial voltage to the power module to be adjusted, so that the virtual voltage on the public electrode is equal to predeterminated voltage.Liquid crystal display panel of the invention and device, real-time regulation is carried out by the voltage on public electrode, it is remained stable, so as to eliminate crosstalk phenomenon.
Description
【Technical field】
The present invention relates to display technology field, more particularly to a kind of liquid crystal display panel and device.
【Background technology】
Because usual liquid crystal display panel includes two substrates up and down for being oppositely arranged, due to the data wire on infrabasal plate with
There is parasitic capacitance in the public electrode on upper substrate, when data line voltage changes, parasitic capacitance coupling is public so as to have impact on
Voltage (VCOM) on electrode, due to there is RC delay (RC delay), therefore cannot make on public electrode in a short time
Voltage return to value set by reference voltage source, the voltage of public electrode returns to setting potential time and is more than a data
The write time of signal；Just there may be the crosstalk phenomenon that display is bad.
The method of tradition stabilization public electrode (VCOM) voltage, mainly increases the driving force of VCOM voltage sources, so that
Keep VCOM voltage stabilizations；But this voltage regulation way, can not only increase the cost of VCOM voltage source chips, and find VCOM
Voltage waveform still suffer from noise.
Therefore, it is necessary to a kind of liquid crystal display panel and device are provided, to solve the problems of prior art.
【The content of the invention】
It is an object of the invention to provide a kind of liquid crystal display panel and device, to solve the stable common electrical of prior art
The method of pole tension, cost is higher, and DeGrain technical problem.
In order to solve the above technical problems, the present invention constructs a kind of liquid crystal display panel, it includes：
First substrate, including a plurality of data lines and multi-strip scanning line, and limited by the data wire and the scan line
Multiple pixel cells；And
Second substrate, is oppositely arranged with the first substrate, and the second substrate includes public electrode；And
Drive circuit, it includes：
Power module, for being input into initial voltage to the public electrode；And
Feedback unit, for according to the virtual voltage on the public electrode, the initial voltage to the power module to enter
Row regulation, so that the virtual voltage on the public electrode is equal to predeterminated voltage.
In the liquid crystal display panel of the invention, the power module has first input end, first input
Hold for being input into initial voltage to the public electrode；
The feedback unit has the second input, and the first output end；Wherein described second input is used to be input into
Virtual voltage on the public electrode；First output end is used for the first input end input feedback voltage；
The first input end connects the public electrode, and first output end connects the first input end；It is described
Second input also connects the public electrode.
In the liquid crystal display panel of the invention, the feedback unit is used for the virtual voltage in the public electrode
When bigger than the predeterminated voltage, the voltage of first output end is reduced；And in the actual voltage ratio, institute of the public electrode
Predeterminated voltage hour is stated, increases the voltage of first output end.
In the liquid crystal display panel of the invention, the feedback unit also has the 3rd for input direct voltage
Input, the feedback unit is additionally operable to the input voltage according to the 3rd input, the input to second input
Voltage is processed, so that first output end exports the feedback voltage.
In the liquid crystal display panel of the invention, the feedback unit includes：First resistor, second resistance, the 3rd
Resistance, triode；The triode has emitter stage, base stage, colelctor electrode；
Second input is connected to the base stage of the triode, the transmitting of the triode by the first resistor
Pole is grounded；3rd input is connected to the colelctor electrode of the triode by the second resistance；The second resistance and
A tie point is provided between the colelctor electrode, one end of the 3rd resistor connects the tie point, the 3rd resistor
The other end is connected between second input and the first resistor；First output end is connected with the tie point.
The present invention also provides a kind of liquid crystal display device, and it includes：
Backlight module, and
Liquid crystal display panel, it includes：
First substrate, including a plurality of data lines and multi-strip scanning line, and limited by the data wire and the scan line
Multiple pixel cells；And
Second substrate, is oppositely arranged with the first substrate, and the second substrate includes public electrode；And
Drive circuit, it includes：
Power module, for being input into initial voltage to the public electrode；And
Feedback unit, for according to the virtual voltage on the public electrode, the initial voltage to the power module to enter
Row regulation, so that the virtual voltage on the public electrode is equal to predeterminated voltage.
In liquid crystal display device of the invention, the power module has first input end, and the first input end is used
In to public electrode input initial voltage；
The feedback unit has the second input, and the first output end；Wherein described second input is used to be input into
Virtual voltage on the public electrode；First output end is used for the first input end input feedback voltage；
The first input end connects the public electrode, and first output end connects the first input end；It is described
Second input also connects the public electrode.
In liquid crystal display device of the invention, the feedback unit is used for the actual voltage ratio, institute in the public electrode
State predeterminated voltage it is big when, reduce the voltage of first output end；And it is pre- described in the actual voltage ratio, in the public electrode
If voltage hour, increase the voltage of first output end.
In liquid crystal display device of the invention, the feedback unit also has the 3rd input for input direct voltage
End, the feedback unit is additionally operable to the input voltage according to the 3rd input, to the input voltage of second input
Processed, so that first output end exports the feedback voltage.
In liquid crystal display device of the invention, the feedback unit includes：First resistor, second resistance, 3rd resistor,
Triode；The triode has emitter stage, base stage, colelctor electrode；
Second input is connected to the base stage of the triode, the transmitting of the triode by the first resistor
Pole is grounded；3rd input is connected to the colelctor electrode of the triode by the second resistance；The second resistance and
A tie point is provided between the colelctor electrode, one end of the 3rd resistor connects the tie point, the 3rd resistor
The other end is connected between second input and the first resistor；First output end is connected with the tie point.
Liquid crystal display panel of the invention and device, real-time regulation is carried out by the voltage on public electrode, protects it
Keep steady definite value, so as to eliminate crosstalk phenomenon, further increases display effect.
【Brief description of the drawings】
Fig. 1 is the GTG test schematic diagram of the liquid crystal display panel of prior art；
Fig. 2 is the structural representation of drive circuit of the invention；
Fig. 3 is the circuit diagram of the feedback unit in drive circuit of the invention.
【Specific embodiment】
The explanation of following embodiment is, with reference to additional schema, to be used to illustrate the particular implementation that the present invention may be used to implement
Example.The direction term that the present invention is previously mentioned, for example " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side "
Deng being only the direction with reference to annexed drawings.Therefore, the direction term for using is to illustrate and understand the present invention, and is not used to
The limitation present invention.In figure, the similar unit of structure is represented with identical label.
Fig. 1 is refer to, Fig. 1 is the GTG test schematic diagram of the liquid crystal display panel of prior art；
As shown in figure 1, the display panel of prior art is when grey black test gray-scale figure is input into, wherein data wire 11 is first input into
Grey luma data, black grey scale data being input into again, grey luma data is recently entered, at x1 positions, luma data is by ash
Color luma data is converted to black grey scale data, because the data voltage in a plurality of data lines diminishes simultaneously so that public electrode
On voltage influenceed by the capacitance coupling effect of these data wires and diminished, when scan line is closed, VCOM voltages are not yet
Predeterminated voltage is returned to, further such that the pressure difference increase between pixel electrode and public electrode；At x2 positions, luma data
When being converted to grey luma data by black grey scale data, because the data voltage on data wire becomes big so that corresponding public
Voltage on electrode becomes big, and when scan line is closed, VCOM voltages not yet return to predeterminated voltage, further such that pixel electrode
Pressure difference change and public electrode between.For the pixel on data wire 11, black portions can be more black than the GTG being input into,
And with the pixel on data wire 12 for, gray scale color of the grey parts also than being input into is deep, therefore string occurs in viewing
Disturb phenomenon.
Fig. 2 is refer to, Fig. 2 is the structural representation of drive circuit of the invention；
Liquid crystal display panel of the invention 20 includes：First substrate, second substrate, liquid crystal layer, the first substrate can be
Array base palte, the second substrate can be color membrane substrates, and the first substrate includes a plurality of data lines and multi-strip scanning line, and
The multiple pixel cells limited by the data wire and the scan line, the first substrate may also include pixel electrode；It is described
Second substrate is oppositely arranged with the first substrate, and the second substrate includes public electrode；The liquid crystal display panel 20 is also
Including drive circuit；
Wherein described drive circuit includes：Power module 21 and feedback unit 22；The power module 21 connects the liquid
Public electrode on LCD panel 20, and provide initial voltage to the public electrode；And the feedback unit 22 also connects
The public electrode is connect, to obtain the virtual voltage on the public electrode, and according to the virtual voltage on the public electrode,
Initial voltage to the power module 21 is adjusted, so that the virtual voltage on the public electrode is equal to predeterminated voltage.
The power module 21 has first input end 23；The feedback unit 22 has the second input 24, Yi Ji
One output end 25；The first input end 23 connects the public electrode, and second input 24 also connects the common electrical
Pole.First output end 25 connects the first input end 23 of the power module 21.
The power module 21 is input into initial voltage by first input end 23 to the public electrode；Second input
The input of end 24 has the virtual voltage on the public electrode；First output end 25 is anti-to the input one of the first input end 23
Feedthrough voltage.
Preferably, the circuit structure example of the feedback unit is as shown in figure 3, the feedback unit 22 also has the 3rd input
End 26, the feedback unit 22 also includes：First resistor R1, second resistance R2,3rd resistor R3, triode T1；Three pole
Pipe T1 has emitter stage, base stage, colelctor electrode；
With reference to Fig. 2, second input 24 of the feedback unit 22 is connected to described by the first resistor R1
The base stage of triode T1, the grounded emitter of the triode T1；3rd input 26 is connected by the second resistance R2
It is connected to the colelctor electrode of the triode；A tie point A, the described 3rd are provided between the second resistance R2 and the colelctor electrode
One end of resistance R3 connects the tie point A, has another connection between second input 24 and the first resistor R1
The other end of point B, the 3rd resistor R3 is connected on the tie point B between the first input end and the first resistor；
First output end 25 is connected with the tie point A.3rd input 26 connects dc source, by the direct current
To the input direct voltage of the 3rd input 26, the magnitude of voltage of the DC voltage is for example 16V in source.
The direction of arrow in Fig. 3 provides the flow direction of electric current, described when the virtual voltage of the public electrode becomes big
The voltage of the second input 24 for example be Vi, due to second input 24 input be public electrode virtual voltage, i.e.,
Virtual voltage equivalent to public electrode increases, the electric current ib increases of the base stage of the triode T1, while so that three pole
The electric current ic increases of the colelctor electrode of pipe T1, cause the voltage of R2 to increase, and the voltage of A points reduces, and the voltage of the first output end 25 subtracts
It is small, the first input end 23 of the power module 21 is connected due to the first output end 25, so that the power module 21
The voltage exported on public electrode diminishes.By the feedback effect of the first output end 25, further make on the public electrode
Virtual voltage more stablize.
Become hour in the virtual voltage of the public electrode, due to second input 24 input is public electrode
Virtual voltage, the i.e. virtual voltage equivalent to public electrode reduce, and the electric current ib of the base stage of the triode T1 reduces, while making
The electric current ic for obtaining the colelctor electrode of the triode T1 reduces, and causes the voltage of R2 to reduce, the voltage increase of A points, the first output end
25 voltage increase, the first input end 23 of the power module 21 is connected due to the first output end 25, so that the electricity
Voltage in the output of source module to public electrode becomes big.By the feedback effect of the first output end 25, further make the public affairs
Virtual voltage in common electrode is more stablized.
Liquid crystal display panel of the invention, monitor in real time is carried out by feedback unit to the voltage on public electrode, and right
Voltage on public electrode feeds back to power module after being adjusted, the voltage of public electrode is remained stable, it is to avoid number
Influence according to the capacitance coupling effect of line to public electrode voltages, so as to eliminate crosstalk phenomenon, further increases display effect
Really.
The present invention also provides a kind of liquid crystal display device, and it includes backlight module, and liquid crystal display panel；It is of the invention
Liquid crystal display panel 20 includes：First substrate, second substrate, liquid crystal layer, the first substrate include a plurality of data lines and a plurality of
Scan line, and the multiple pixel cells limited by the data wire and the scan line, the first substrate may also include picture
Plain electrode；The second substrate is oppositely arranged with the first substrate, and the second substrate includes public electrode；The liquid crystal
Show that panel 20 also includes drive circuit；
Wherein described drive circuit includes：Power module 21 and feedback unit 22；The power module 21 connects the liquid
Public electrode on LCD panel 20, and provide initial voltage to the public electrode；And the feedback unit 22 also connects
The public electrode is connect, to obtain the virtual voltage on the public electrode, and according to the virtual voltage on the public electrode,
Initial voltage to the power module 21 is adjusted, so that the virtual voltage on the public electrode is equal to predeterminated voltage.
The power module 21 has first input end 23；The feedback unit 22 has the second input 24, Yi Ji
One output end 25；The first input end 23 connects the public electrode, and second input 24 also connects the common electrical
Pole.First output end 25 connects the first input end 23 of the power module 21.
The power module 21 is input into initial voltage by first input end 23 to the public electrode；Second input
The input of end 24 has the virtual voltage on the public electrode；First output end 25 is anti-to the input one of the first input end 23
Feedthrough voltage.
Preferably, the circuit structure example of the feedback unit is as shown in figure 3, the feedback unit 22 also has the 3rd input
End 26, the feedback unit 22 also includes：First resistor R1, second resistance R2,3rd resistor R3, triode T1；Three pole
Pipe T1 has emitter stage, base stage, colelctor electrode；
With reference to Fig. 2, second input 24 of the feedback unit 22 is connected to described by the first resistor R1
The base stage of triode T1, the grounded emitter of the triode T1；3rd input 26 is connected by the second resistance R2
It is connected to the colelctor electrode of the triode；A tie point A, the described 3rd are provided between the second resistance R2 and the colelctor electrode
One end of resistance R3 connects the tie point A, has another connection between second input 24 and the first resistor R1
The other end of point B, the 3rd resistor R3 is connected on the tie point B between the first input end and the first resistor；
First output end 25 is connected with the tie point A.3rd input 26 connects dc source, by the direct current
To the input direct voltage of the 3rd input 26, the magnitude of voltage of the DC voltage is for example 16V in source.
The direction of arrow in Fig. 3 provides the flow direction of electric current, described when the virtual voltage of the public electrode becomes big
The voltage of the second input 24 for example be Vi, due to second input 24 input be public electrode virtual voltage, i.e.,
Virtual voltage equivalent to public electrode increases, the electric current ib increases of the base stage of the triode T1, while so that three pole
The electric current ic increases of the colelctor electrode of pipe T1, cause the voltage of R2 to increase, and the voltage of A points reduces, and the voltage of the first output end 25 subtracts
It is small, the first input end 23 of the power module 21 is connected due to the first output end 25, so that the power module 21
The voltage exported on public electrode diminishes.By the feedback effect of the first output end 25, further make on the public electrode
Virtual voltage more stablize.
Become hour in the virtual voltage of the public electrode, due to second input 24 input is public electrode
Virtual voltage, the i.e. virtual voltage equivalent to public electrode reduce, and the electric current ib of the base stage of the triode T1 reduces, while making
The electric current ic for obtaining the colelctor electrode of the triode T1 reduces, and causes the voltage of R2 to reduce, the voltage increase of A points, the first output end
25 voltage increase, the first input end 23 of the power module 21 is connected due to the first output end 25, so that the electricity
Voltage in the output of source module 21 to public electrode becomes big.By the feedback effect of the first output end 25, further make described
Virtual voltage on public electrode is more stablized.
Liquid crystal display device of the invention, monitor in real time is carried out by feedback unit to the voltage on public electrode, and right
Voltage on public electrode feeds back to power module after being adjusted, the voltage of public electrode is remained stable, it is to avoid number
Influence according to the capacitance coupling effect of line to public electrode voltages, so as to eliminate crosstalk phenomenon, further increases display effect
Really.
In sum, although the present invention it is disclosed above with preferred embodiment, but above preferred embodiment and be not used to limit
The system present invention, one of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Adorn, therefore protection scope of the present invention is defined by the scope that claim is defined.
Claims (8)
1. a kind of liquid crystal display panel, it is characterised in that including：
First substrate, including a plurality of data lines and multi-strip scanning line, and by the data wire and the scan line limit it is many
Individual pixel cell；And
Second substrate, is oppositely arranged with the first substrate, and the second substrate includes public electrode；And
Drive circuit, it includes：
Power module, for being input into initial voltage to the public electrode；And
Feedback unit, for according to the virtual voltage on the public electrode, the initial voltage to the power module to be adjusted
Section, so that the virtual voltage on the public electrode is equal to predeterminated voltage；
The feedback unit includes：First resistor, second resistance, 3rd resistor, triode；The triode have emitter stage,
Base stage, colelctor electrode；
The feedback unit has the second input, the 3rd input and the first output end, and second input passes through institute
State the base stage that first resistor is connected to the triode, the grounded emitter of the triode；3rd input passes through institute
State the colelctor electrode that second resistance is connected to the triode；A connection is provided between the second resistance and the colelctor electrode
Point, one end of the 3rd resistor connects the tie point, and the other end of the 3rd resistor is connected to second input
And the first resistor between；First output end is connected with the tie point.
2. liquid crystal display panel according to claim 1, it is characterised in that
The power module has first input end, and the first input end is used to be input into initial voltage to the public electrode；
Wherein described second input is used for the virtual voltage being input on the public electrode；First output end is used for institute
State first input end input feedback voltage；
The first input end connects the public electrode, and first output end connects the first input end；Described second
Input also connects the public electrode.
3. liquid crystal display panel according to claim 2, it is characterised in that
The feedback unit be used for predeterminated voltage described in actual voltage ratio, in the public electrode it is big when, reduce described first defeated
Go out the voltage at end；And predeterminated voltage described in the actual voltage ratio, in the public electrode hour, increase first output end
Voltage.
4. liquid crystal display panel according to claim 2, it is characterised in that
3rd input is used for input direct voltage, and the feedback unit is additionally operable to the input according to the 3rd input
Voltage, the input voltage to second input is processed, so that first output end exports the feedback voltage.
5. a kind of liquid crystal display device, it is characterised in that including：
Backlight module, and
Liquid crystal display panel, it includes：
First substrate, including a plurality of data lines and multi-strip scanning line, and by the data wire and the scan line limit it is many
Individual pixel cell；And
Second substrate, is oppositely arranged with the first substrate, and the second substrate includes public electrode；And
Drive circuit, it includes：
Power module, for being input into initial voltage to the public electrode；And
Feedback unit, for according to the virtual voltage on the public electrode, the initial voltage to the power module to be adjusted
Section, so that the virtual voltage on the public electrode is equal to predeterminated voltage；
The feedback unit includes：First resistor, second resistance, 3rd resistor, triode；The triode have emitter stage,
Base stage, colelctor electrode；
The feedback unit has the second input, the 3rd input and the first output end, and second input passes through institute
State the base stage that first resistor is connected to the triode, the grounded emitter of the triode；3rd input passes through institute
State the colelctor electrode that second resistance is connected to the triode；A connection is provided between the second resistance and the colelctor electrode
Point, one end of the 3rd resistor connects the tie point, and the other end of the 3rd resistor is connected to second input
And the first resistor between；First output end is connected with the tie point.
6. liquid crystal display device according to claim 5, it is characterised in that
The power module has first input end, and the first input end is used to be input into initial voltage to the public electrode；
Wherein described second input is used for the virtual voltage being input on the public electrode；First output end is used for institute
State first input end input feedback voltage；
The first input end connects the public electrode, and first output end connects the first input end；Described second
Input also connects the public electrode.
7. liquid crystal display device according to claim 6, it is characterised in that
The feedback unit be used for predeterminated voltage described in actual voltage ratio, in the public electrode it is big when, reduce described first defeated
Go out the voltage at end；And predeterminated voltage described in the actual voltage ratio, in the public electrode hour, increase first output end
Voltage.
8. liquid crystal display device according to claim 6, it is characterised in that
3rd input is used for input direct voltage, and the feedback unit is additionally operable to the input according to the 3rd input
Voltage, the input voltage to second input is processed, so that first output end exports the feedback voltage.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237560.3A CN104882104B (en) | 2015-05-11 | 2015-05-11 | A kind of liquid crystal display panel and device |
| PCT/CN2015/079150 WO2016179847A1 (en) | 2015-05-11 | 2015-05-18 | Liquid crystal display panel and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237560.3A CN104882104B (en) | 2015-05-11 | 2015-05-11 | A kind of liquid crystal display panel and device |
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| Publication Number | Publication Date |
|---|---|
| CN104882104A CN104882104A (en) | 2015-09-02 |
| CN104882104B true CN104882104B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510237560.3A Active CN104882104B (en) | 2015-05-11 | 2015-05-11 | A kind of liquid crystal display panel and device |
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| CN (1) | CN104882104B (en) |
| WO (1) | WO2016179847A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810172A (en) * | 2016-05-31 | 2016-07-27 | 京东方科技集团股份有限公司 | Display driving circuit and display device |
| CN107591137A (en) * | 2017-09-15 | 2018-01-16 | 惠科股份有限公司 | Display device and its driving method |
| CN108597428A (en) * | 2018-04-28 | 2018-09-28 | 惠州市华星光电技术有限公司 | Driving voltage adjustment method and liquid crystal display |
| CN110111753B (en) * | 2019-04-10 | 2020-10-27 | 深圳市华星光电半导体显示技术有限公司 | Driving method and device of display panel |
| CN112885307B (en) * | 2021-01-18 | 2022-07-12 | 深圳市华星光电半导体显示技术有限公司 | Display panel, voltage adjusting method of display panel and display device |
Citations (1)
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| KR0163938B1 (en) * | 1996-01-13 | 1999-03-20 | 김광호 | Driving circuit of thin film transistor liquid crystal device |
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| CN100543562C (en) * | 2006-12-20 | 2009-09-23 | 群康科技(深圳)有限公司 | Liquid crystal panel drive circuit and LCD |
| CN101312014B (en) * | 2007-05-25 | 2010-08-25 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| TWI368895B (en) * | 2007-06-01 | 2012-07-21 | Chimei Innolux Corp | Liquid crystal display device |
| CN101344657B (en) * | 2007-07-13 | 2010-07-14 | 群康科技(深圳)有限公司 | LCD and common voltage driving method |
| CN101398550B (en) * | 2007-09-26 | 2011-02-02 | 北京京东方光电科技有限公司 | Method and device for avoiding image retention |
| CN202102695U (en) * | 2011-06-02 | 2012-01-04 | 京东方科技集团股份有限公司 | Voltage stabilizing circuit and display device for TFT-LCD common voltage |
| CN104269147A (en) * | 2014-09-30 | 2015-01-07 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display panel driving circuit and liquid crystal device |
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| CN104882104A (en) | 2015-09-02 |
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