CN109584826A - Driving circuit, display panel drive device and display device - Google Patents
Driving circuit, display panel drive device and display device Download PDFInfo
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- CN109584826A CN109584826A CN201811587918.5A CN201811587918A CN109584826A CN 109584826 A CN109584826 A CN 109584826A CN 201811587918 A CN201811587918 A CN 201811587918A CN 109584826 A CN109584826 A CN 109584826A
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention discloses a kind of driving circuit, display panel drive device and display device, wherein, driving circuit includes the first gamma voltage generation circuit, second gamma voltage generation circuit and source electrode drive circuit, driving circuit is used to export in the pixel unit inside simulation gray scale voltage signal to display panel, pixel unit is divided into M the first pixel units and N number of second pixel unit, and it is staggered, source electrode drive circuit is used to be converted to the first driving voltage group voltage value and is correspondingly outputting to M the first pixel units greater than multiple simulation gray scale voltage signals of reference voltage value, and the second driving voltage group is converted into voltage value and is correspondingly outputting to N number of second pixel unit less than multiple simulation gray scale voltage signals of reference voltage value, reach promotion coloration angle of visibility to reach the first pixel unit and the mixing of the second pixel unit Purpose, so solve the visual angle seen or squint when side it is excessive when, display screen understands the partially white problem of picture.
Description
Technical field
The present invention relates to technical field of display panel, in particular to a kind of driving circuit, display panel drive device and aobvious
Showing device.
Background technique
With the development of field of liquid crystal display, higher image quality has become the main indicator of major display manufacturer, coloration
Angle of visibility as the important direction that an important indicator of image quality is that each panel factory makes great efforts, however, see when side or
When the visual angle of strabismus is excessive, the partially white phenomenon of picture can be presented in display screen.
Summary of the invention
The main object of the present invention is to provide a kind of driving circuit, it is intended to it is excessive to solve the visual angle seen or squinted when side
When, display screen can the partially white problem of picture.
To achieve the above object, a kind of driving circuit proposed by the present invention, for providing simulation gray scale voltage signal to aobvious
Show that panel, the display panel include multiple pixel units, multiple pixel units are divided into M the first pixel units and N number of
Second pixel unit, first pixel unit and second pixel unit are successively staggeredly set in line direction and column direction
It sets, the driving circuit includes:
First gamma voltage generation circuit, for exporting the first driving voltage group；
Second gamma voltage generation circuit, for exporting the second driving voltage group；
Source electrode drive circuit, it is multiple greater than reference voltage value for the first driving voltage group to be converted to voltage value
Simulation gray scale voltage signal is correspondingly outputting to M first pixel units, and the second driving voltage group is converted to
Multiple simulation gray scale voltage signals that voltage value is less than the reference voltage value are correspondingly outputting to N number of second pixel unit；
The reference voltage value is for driving first pixel unit and second pixel unit normally to show work
The voltage value of work.
Optionally, first pixel unit and/or second pixel unit are pixel or sub-pixel.
Optionally, first gamma voltage generation circuit includes the first DC power supply and first resistor network string, described
First DC power supply exports the first driving voltage group through the first resistor network string；
Second gamma voltage generation circuit includes the second DC power supply and second resistance network string, second direct current
Power supply exports the second driving voltage group through the second resistance network string.
Optionally, first gamma voltage generation circuit includes the first gamma chip and the first DC power supply, and described the
One DC power supply exports the first driving voltage group through the first gamma chip；
Second gamma voltage generation circuit includes the second gamma chip and the second DC power supply, second direct current
Source exports the second driving voltage group through the second gamma chip.
Optionally, the voltage value of first DC power supply is greater than the voltage value of second DC power supply.
Optionally, the voltage value of first DC power supply is equal to the voltage value and described first of second DC power supply
The equivalent resistance of resistor network string is less than the equivalent resistance or first DC power supply of the second resistance network string
Voltage value is greater than the voltage value of second DC power supply.
Optionally, the source electrode drive circuit includes the first source electrode drive circuit and the second source electrode drive circuit；
First source electrode drive circuit is serially connected in first gamma voltage generation circuit and M the first pixel lists
Between member；
Second source electrode drive circuit is serially connected in second gamma voltage generation circuit and N number of second pixel list
Between member.
Optionally, the source electrode drive circuit includes:
Gamma electric voltage selector, for being carried out pair to the first driving voltage group and/or the second driving voltage group
It should select and export；
D/A converting circuit, the voltage signal for exporting to the gamma electric voltage selector carry out digital-to-analogue conversion and export
Simulate gray scale voltage signal；
Power amplifier, the simulation gray scale voltage signal for exporting to the D/A converting circuit carry out power amplification,
And it is correspondingly outputting to corresponding pixel unit.
The present invention also proposes a kind of display panel drive device, the display panel drive device include gate driving circuit and
Driving circuit as described above, the driving circuit is for providing simulation gray scale voltage signal to display panel, the display surface
Plate includes multiple pixel units, and multiple pixel units are divided into M the first pixel units and N number of second pixel unit, described
First pixel unit and second pixel unit are successively staggered in line direction and column direction, the driving circuit packet
It includes:
First gamma voltage generation circuit, for exporting the first driving voltage group；
Second gamma voltage generation circuit, for exporting the second driving voltage group；
Source electrode drive circuit, it is multiple greater than reference voltage value for the first driving voltage group to be converted to voltage value
Simulation gray scale voltage signal is correspondingly outputting to M first pixel units, and the second driving voltage group is converted to
Multiple simulation gray scale voltage signals that voltage value is less than the reference voltage value are correspondingly outputting to N number of second pixel unit；
The reference voltage value is for driving first pixel unit and second pixel unit normally to show work
The voltage value of work.
The present invention also proposes a kind of display device, which includes display panel and driving device as described above.
Technical solution of the present invention is by using the first gamma voltage generation circuit, the second gamma voltage generation circuit, source electrode
Driving circuit constitutes driving circuit, and driving circuit is used to export the pixel list inside simulation gray scale voltage signal to display panel
In member, pixel unit is divided into M the first pixel units and N number of second pixel unit, and is staggered, and source electrode drive circuit is used
Multiple simulation gray scale voltage signals are converted in the first driving voltage group for exporting the first gamma voltage generation circuit to export to M
A first pixel unit, the corresponding driving voltage value of multiple simulation gray scale voltage signals are greater than reference voltage value, source drive electricity
The second driving voltage group that second gamma voltage generation circuit exports also is converted to multiple simulation gray scale voltage signals and exported by road
To N number of second pixel unit, the corresponding driving voltage value of multiple simulation gray scale voltage signals is less than reference voltage value, to reach
First pixel unit and the mixing of the second pixel unit achieve the purpose that promote coloration angle of visibility, and then solve to see or squint when side
Visual angle it is excessive when, display screen can the partially white problem of picture.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the module diagram of one embodiment of present invention driver circuit；
Fig. 2 is pixel unit distribution schematic diagram in one embodiment of present invention driver circuit；
Fig. 3 is the electrical block diagram of the first gamma voltage generation circuit of one embodiment of present invention driver circuit；
Fig. 4 is the electrical block diagram of the second gamma voltage generation circuit of one embodiment of present invention driver circuit；
Fig. 5 is the electrical block diagram of the first gamma voltage generation circuit of another embodiment of present invention driver circuit；
Fig. 6 is the electrical block diagram of the second gamma voltage generation circuit of another embodiment of present invention driver circuit；
Fig. 7 is the module diagram of the another embodiment of present invention driver circuit.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the "and/or" occurred in full text contains
Justice are as follows: including three schemes arranged side by side, by taking " A/B " as an example, including the scheme that A scheme or B scheme or A and B meet simultaneously, separately
Outside, the technical solution between each embodiment can be combined with each other, can be real with those of ordinary skill in the art but must be
Based on existing, the combination of this technical solution will be understood that not when conflicting or cannot achieve when occurs in the combination of technical solution
In the presence of, also not the present invention claims protection scope within.
A kind of driving circuit proposed by the present invention, for providing simulation gray scale voltage signal to display panel.
As shown in Figure 1 and shown in Fig. 2, Fig. 1 is the module diagram of one embodiment of present invention driver circuit, and Fig. 2 is this hair
Pixel unit distribution schematic diagram in bright one embodiment of driving circuit, the display panel 200 include multiple pixel units, Duo Gesuo
It states pixel unit and is divided into M the first pixel unit Pixel 1 and N number of second pixel unit Pixel 2, first pixel unit
Pixel 1 and the second pixel unit Pixel 2 are successively staggered in line direction and column direction, the driving circuit packet
It includes:
First gamma voltage generation circuit 10, for exporting the first driving voltage group；
Second gamma voltage generation circuit 20, for exporting the second driving voltage group；
Source electrode drive circuit 30 is more greater than reference voltage value for the first driving voltage group to be converted to voltage value
A simulation gray scale voltage signal is correspondingly outputting to M the first pixel unit Pixel 1, and by second driving voltage
Group is converted to voltage value and is correspondingly outputting to N number of second picture less than multiple simulation gray scale voltage signals of the reference voltage value
Plain unit Pixel 2；
The reference voltage value is for driving the first pixel unit Pixel 1 and second pixel unit
Pixel 2 normally shows the voltage value of work.
In the present embodiment, the display panel 200 includes but is not limited to liquid crystal display panel, organic light-emitting diode display
Panel, field emission display panel, Plasmia indicating panel, curved face type panel, the liquid crystal display panel include tft liquid crystal
Display panel, TN panel, VA class panel, IPS panel etc..
In the present embodiment, the pixel unit of display panel 200 is divided into the first pixel unit Pixel 1 and the second pixel list
First Pixel 2, and the first pixel unit Pixel 1 and the second pixel unit Pixel 2 are staggered, and the first gamma electric voltage produces
The raw output of circuit 10 is for driving the driving voltage of the first pixel unit Pixel 1 and being converted to simulation through source electrode drive circuit 30
Gray scale voltage signal is exported to corresponding first pixel unit Pixel 1, and the output of the first gamma voltage generation circuit 10
Driving voltage is greater than the reference voltage for driving pixel unit to work normally, and the output of the second gamma electric voltage is for driving the second picture
The driving voltage of plain unit Pixel 2 is simultaneously converted to simulation gray scale voltage signal through source electrode drive circuit 30 and exports to corresponding the
The driving voltage of two pixel unit Pixel 2, the output of the second gamma voltage generation circuit 20 are greater than for driving pixel unit just
The reference voltage often to work, the first adjacent pixel unit Pixel 1 and the second pixel unit Pixel 2 drive in different brackets
It works under the corresponding simulation gray scale voltage signal of voltage, thus by the first pixel unit Pixel 1 and the second pixel unit Pixel
2 mixing achieve the purpose that promote coloration angle of visibility.
In the present embodiment, the first gamma voltage generation circuit 10 can be made of divider resistance string or gamma chip forms,
Similarly the second gamma voltage generation circuit 20 can also be made of divider resistance string or gamma chip forms, and the first gamma electric voltage produces
Each driving voltage that raw circuit 10 generates is bigger than corresponding reference voltage, and the second gamma voltage generation circuit 20 generates every
One driving voltage is smaller than corresponding reference voltage, and the specific size of the first driving voltage group and the second driving voltage group can basis
Specific requirements are adjusted, and the first driving voltage group and the second driving voltage group are by changing input power size, or change
The resistance value of divider resistance string is adjusted, and is not particularly limited herein.
In the present embodiment, M and N are all larger than 0, the number of the first pixel unit Pixel 1 and the second pixel unit Pixel 2
It can be designed according to the size of display panel 200, be not particularly limited herein.
Source electrode drive circuit 30 is used for the first gamma voltage generation circuit 10 and the second gamma voltage generation circuit 20 is defeated
Voltage group out is converted, is selected and exported to corresponding pixel unit, and quantity may be designed to one, the first gamma electric voltage
Generation circuit 10 and the equal outputting drive voltage of the second gamma voltage generation circuit 20 can also be designed to source electrode drive circuit 30
Two, the first gamma voltage generation circuit 10 and the second gamma voltage generation circuit 20 connect with a source electrode drive circuit 30 respectively
It connects, specific number can be designed according to the actual situation, be not specifically limited herein.
In an alternative embodiment, the first pixel unit Pixel 1 and/or the second pixel unit Pixel 2
For pixel or sub-pixel.
In the present embodiment, the first pixel unit Pixel 1 can be made of three sub-pixels of red blue green, i.e., by three sub-pixels
It forms a whole, output simulation gray scale voltage signal to three sub-pixels of source electrode drive circuit 30 work at the same time, the second pixel
Unit Pixel 2 is equally made of three sub-pixels of red blue green, the first pixel unit Pixel 1 and the second pixel unit Pixel
2 carry out colour mixture to improve coloration angle of visibility.
Similarly, the first pixel unit Pixel 1 and the second pixel unit Pixel 2 also may respectively be single sub-pixel,
That is the first pixel unit Pixel 1 can be red pixel, and the second pixel unit Pixel 2 is green pixel, then adjacent blue pixel
For the first pixel unit Pixel 1, to realize the colour mixture more refined, the first pixel unit Pixel 1 and the second pixel unit
Pixel 2 can be designed as the case may be, be not particularly limited herein.
As shown in Figure 3 and Figure 4, Fig. 3 is the electricity of the first gamma voltage generation circuit of one embodiment of present invention driver circuit
Line structure schematic diagram, Fig. 4 are the circuit structure signal of the second gamma voltage generation circuit of one embodiment of present invention driver circuit
Figure, first gamma voltage generation circuit 10 include the first DC power supply VCC1 and first resistor network string, and described first is straight
Galvanic electricity source VCC1 exports the first driving voltage group through the first resistor network string；
Second gamma voltage generation circuit 20 includes the second DC power supply VCC2 and second resistance network string, and described the
Two DC power supply VCC2 export the second driving voltage group through the second resistance network string.
It should be noted that gamma voltage generation circuit generally includes two parts, including resistor network string and source drive
Divider resistance string inside circuit 30, since the divider resistance string inside source driving chip has been fixed in design, generally
It does not adjust, the first DC power supply VCC1 and the second DC power supply VCC2 can be exported by sequence controller, first resistor network string
Including multiple resistance R inside multiple divider resistances, such as resistance R0~R14 and source electrode drive circuit 30, second resistance network
String includes multiple resistance r inside multiple divider resistances, such as resistance r0~r14 and source electrode drive circuit 30, the first direct current
Source VCC1 generates the driving voltage of different voltages grade by first resistor network, and the driving voltage of the voltage class is greater than pixel
The reference voltage that unit works normally, the second DC power supply VCC2 generate the driving of different voltages grade by second resistance network
Voltage, the driving voltage of the voltage class are less than the reference voltage that pixel unit works normally, can be by improving the first direct current
Source VCC1 reduces the voltage value of the second DC power supply VCC2 perhaps to realize or adjust the good second resistance of first resistor network string
The resistance of network string realizes the variation of voltage.
As shown in Figure 5 and Figure 6, Fig. 5 is the first gamma voltage generation circuit of another embodiment of present invention driver circuit
Electrical block diagram, Fig. 6 are the circuit structure of the second gamma voltage generation circuit of another embodiment of present invention driver circuit
Schematic diagram, in the present embodiment, first gamma voltage generation circuit 10 includes the first gamma chip U1 and the first DC power supply
VCC1, the first DC power supply VCC1 export the first driving voltage group through the first gamma chip U1；
Second gamma voltage generation circuit 20 includes the second gamma chip U2 and the second DC power supply VCC2, and described the
Two DC power supply VCC2 export the second driving voltage group through the second gamma chip U2.
In the present embodiment, the first gamma voltage generation circuit 10 is by the first DC power supply VCC1 and the first gamma chip U1 group
At the second gamma chip U2 is made of the second DC power supply VCC2 and the second gamma chip U2, the first DC power supply VCC1 and
Two DC power supply VCC2 can be provided by sequence controller, be integrated with respectively inside the first gamma chip U1 and the second gamma chip U2
The gamma resistor network string of codified, and can be adjusted by iic bus, gamma chip adjusts easier and precision
It is higher.
In an alternative embodiment, the voltage value of the first DC power supply VCC1 is greater than the second DC power supply VCC2
Voltage value.
In the present embodiment, the first gamma voltage generation circuit 10 and the second gamma voltage generation circuit 20 can be used identical
Gamma chip, and corresponding DC power supply is changed, i.e., the voltage value of the first DC power supply VCC1 is improved, so as to defeated
The driving voltage group of higher level out reduces the voltage value of the second DC power supply VCC2, to export the driving of lower grade
Pressure group.
In an alternative embodiment, the voltage value of the first DC power supply VCC1 is equal to the second DC power supply VCC2
Voltage value and the first resistor network string equivalent resistance be less than the second resistance network string equivalent resistance, or
The voltage value of first DC power supply is greater than the voltage value of second DC power supply.
In the present embodiment, according to Ohm's law, in the case that voltage is constant, resistance is smaller, and electric current is bigger, therefore different points
The voltage of piezoresistance is bigger, such as can reduce the resistance value of resistance R0 in Fig. 3, and the equivalent resistance of resistance R0 to resistance R14 reduces,
The voltage of resistance R0 to resistance R14 become larger, to export the driving voltage group of higher level, similarly, the resistance r0 in Fig. 4 is become
Greatly, the equivalent resistance of resistance r0 to resistance r14 become larger, and the voltage of resistance r0 to resistance r14 become smaller, to export lower grade
Pressure group or the first gamma voltage generation circuit 10 and the second gamma voltage generation circuit 20 is driven to use identical resistor network
String, and corresponding DC power supply is changed, i.e., the voltage value of the first DC power supply VCC1 is improved, thus exportable higher
The driving voltage group of grade reduces the voltage value of the second DC power supply VCC2, to export the driving pressure group of lower grade.
In an alternative embodiment, the source electrode drive circuit 30 includes the first source electrode drive circuit (not shown go out) and the
Two source electrode drive circuits (not shown go out)；
First source electrode drive circuit is serially connected in first gamma voltage generation circuit 10 and M first pixels
Between unit Pixel 1；
Second source electrode drive circuit is serially connected in second gamma voltage generation circuit 20 and N number of second pixel
Between unit Pixel 2.
In the present embodiment, source electrode drive circuit 30 includes two, and is serially connected in gamma voltage generation circuit and display respectively
Between panel 200, the first voltage group that the first gamma voltage generation circuit 10 exports is converted to mould by the first source electrode drive circuit
Quasi- gray scale voltage signal is exported to M the first pixel unit Pixel 1, and the second source electrode drive circuit generates the second gamma electric voltage
The second voltage group that circuit 20 exports is converted to simulation gray scale voltage signal and exports to N number of first pixel unit Pixel 1, and first
The driving voltage of driving voltage and the output of the second gamma voltage generation circuit 20 that gamma voltage generation circuit 10 exports keeps dividing
From simplified 30 internal structure of source electrode drive circuit and the line construction for simplifying display panel 200.
As shown in fig. 7, Fig. 7 is the module diagram of the another embodiment of present invention driver circuit, and in the present embodiment, the source
Pole driving circuit 30 includes:
Gamma electric voltage selector 31, for being carried out to the first driving voltage group and/or the second driving voltage group
Corresponding selection simultaneously exports；
D/A converting circuit 32, the voltage signal for exporting to the gamma electric voltage selector 31 carry out digital-to-analogue conversion simultaneously
Output simulation gray scale voltage signal；
Power amplifier 33, the simulation gray scale voltage signal for exporting to the D/A converting circuit 32 carry out power and put
Greatly, and it is correspondingly outputting to corresponding pixel unit.
Gamma electric voltage selector 31 is for selecting suitable driving voltage to work for corresponding pixel unit, source drive
Circuit 30 can be one and two, and when source electrode drive circuit 30 is one, gamma electric voltage selector 31 needs simultaneously to first
Driving voltage group and second voltage group are selected and export to D/A converting circuit 32 and then export to corresponding first pixel
In unit Pixel 1 and the second pixel unit Pixel 2, when source electrode drive circuit 30 is two, two source electrode drive circuits
Gamma electric voltage selector 31 in 30 then works respectively, gamma electric voltage selector 31 in the first source electrode drive circuit 30 selection the
One gamma electric voltage group, the gamma electric voltage selector 31 in the second source drive voltage selects the second gamma electric voltage group, and leads to respectively
It crosses respective D/A converting circuit 32 and power amplifier 33 and digital-to-analogue conversion and power amplification is carried out to voltage signal, and is defeated respectively
Out to corresponding first pixel unit Pixel 1 and the second pixel unit Pixel 2.
As shown in Figure 1, the present invention also proposes a kind of display panel drive device, which includes grid
Driving circuit 40 and driving circuit as described above, the specific structure of the driving circuit is referring to above-described embodiment, due to this display
200 driving device of panel uses whole technical solutions of above-mentioned all embodiments, therefore at least with the skill of above-described embodiment
All beneficial effects brought by art scheme, this is no longer going to repeat them.
In the present embodiment, driving circuit is used to export each pixel list of simulation gray scale voltage signal to display panel 200
In member, gate driving circuit 40 is opened line by line for realizing pixel unit array, and under the control of sequence controller with driving
Circuit cooperation realizes that the data-signal for opening row is input in corresponding pixel.
The present invention also proposes a kind of display device, which includes the display panel as described above of display panel 200
Driving device, the specific structure of the display panel drive device is referring to above-described embodiment, since this display device is using above-mentioned
Whole technical solutions of all embodiments, thus it is at least all beneficial to effect brought by the technical solution with above-described embodiment
Fruit, this is no longer going to repeat them.
The foregoing is merely alternative embodiments of the invention, are not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of driving circuit, for providing simulation gray scale voltage signal to display panel, which is characterized in that the display panel
Including multiple pixel units, multiple pixel units are divided into M the first pixel units and N number of second pixel unit, and described the
One pixel unit and second pixel unit are successively staggered in line direction and column direction, and the driving circuit includes:
First gamma voltage generation circuit, for exporting the first driving voltage group；
Second gamma voltage generation circuit, for exporting the second driving voltage group；
Source electrode drive circuit, for the first driving voltage group to be converted to multiple simulations that voltage value is greater than reference voltage value
Gray scale voltage signal is correspondingly outputting to M first pixel units, and the second driving voltage group is converted to voltage
Multiple simulation gray scale voltage signals that value is less than the reference voltage value are correspondingly outputting to N number of second pixel unit；
The reference voltage value is for driving first pixel unit and second pixel unit normally to show work
Voltage value.
2. driving circuit as described in claim 1, which is characterized in that first pixel unit and/or second pixel
Unit is pixel or sub-pixel.
3. source electrode drive circuit as claimed in claim 2, which is characterized in that first gamma voltage generation circuit includes the
One DC power supply and first resistor network string, first DC power supply drive through first resistor network string output described first
Dynamic voltage group；
Second gamma voltage generation circuit includes the second DC power supply and second resistance network string, second DC power supply
The second driving voltage group is exported through the second resistance network string.
4. driving circuit as claimed in claim 2, which is characterized in that first gamma voltage generation circuit includes the first gal
Horse chip and the first DC power supply, first DC power supply export first driving voltage through the first gamma chip
Group；
Second gamma voltage generation circuit includes the second gamma chip and the second DC power supply, the second DC power supply warp
The second gamma chip exports the second driving voltage group.
5. driving circuit as claimed in claim 4, which is characterized in that the voltage value of first DC power supply is greater than described the
The voltage value of two DC power supplies.
6. driving circuit as claimed in claim 3, which is characterized in that the voltage value of first DC power supply is equal to described the
The equivalent resistance of the voltage value of two DC power supplies and the first resistor network string be less than the second resistance network string etc.
The voltage value of effect resistance value or first DC power supply is greater than the voltage value of second DC power supply.
7. driving circuit as described in claim 1, which is characterized in that the source electrode drive circuit includes the first source drive electricity
Road and the second source electrode drive circuit；
First source electrode drive circuit be serially connected in first gamma voltage generation circuit and M first pixel units it
Between；
Second source electrode drive circuit be serially connected in second gamma voltage generation circuit and N number of second pixel unit it
Between.
8. driving circuit described in 1-7 any one as claimed in claim, which is characterized in that the source electrode drive circuit packet
It includes:
Gamma electric voltage selector, for carrying out corresponding choosing to the first driving voltage group and/or the second driving voltage group
It selects and exports；
D/A converting circuit, the voltage signal for exporting to the gamma electric voltage selector carry out digital-to-analogue conversion and export simulation
Gray scale voltage signal；
Power amplifier, the simulation gray scale voltage signal for exporting to the D/A converting circuit carry out power amplification, and right
It should export to corresponding pixel unit.
9. a kind of display panel drive device, which is characterized in that including gate driving circuit and driving as claimed in claim 8
Circuit.
10. a kind of display device, which is characterized in that including display panel and driving device as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587918.5A CN109584826A (en) | 2018-12-24 | 2018-12-24 | Driving circuit, display panel drive device and display device |
| PCT/CN2019/123639 WO2020134970A1 (en) | 2018-12-24 | 2019-12-06 | Driver circuit, display panel driver device, and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811587918.5A CN109584826A (en) | 2018-12-24 | 2018-12-24 | Driving circuit, display panel drive device and display device |
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| Publication Number | Publication Date |
|---|---|
| CN109584826A true CN109584826A (en) | 2019-04-05 |
Family
ID=65931637
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811587918.5A Pending CN109584826A (en) | 2018-12-24 | 2018-12-24 | Driving circuit, display panel drive device and display device |
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| Country | Link |
|---|---|
| CN (1) | CN109584826A (en) |
| WO (1) | WO2020134970A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556077A (en) * | 2019-09-26 | 2019-12-10 | 京东方科技集团股份有限公司 | Voltage output circuit, driving circuit, display panel and display device |
| CN110867168A (en) * | 2019-10-15 | 2020-03-06 | 昆山龙腾光电股份有限公司 | Gamma voltage adjusting circuit, adjusting method and display device |
| WO2020134970A1 (en) * | 2018-12-24 | 2020-07-02 | 惠科股份有限公司 | Driver circuit, display panel driver device, and display device |
| CN111899696A (en) * | 2019-05-05 | 2020-11-06 | 咸阳彩虹光电科技有限公司 | Pixel matrix driving method and device and display |
| CN113470586A (en) * | 2021-05-31 | 2021-10-01 | 惠科股份有限公司 | Driving circuit, driving method and debugging method of display panel |
| CN113939862A (en) * | 2020-03-27 | 2022-01-14 | 京东方科技集团股份有限公司 | Display panel and driving method thereof |
| CN115631713A (en) * | 2022-11-09 | 2023-01-20 | 武汉天马微电子有限公司 | Driving module and driving method thereof, display panel and display device |
| CN116469354A (en) * | 2023-04-27 | 2023-07-21 | 惠科股份有限公司 | Gamma circuit, driving circuit of display panel and display panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481689A (en) * | 2017-08-25 | 2017-12-15 | 惠科股份有限公司 | Image processing apparatus and its processing method |
| CN107529049A (en) * | 2017-08-28 | 2017-12-29 | 惠科股份有限公司 | Display device images processing method, Image Processing Structure and display device |
| CN107945758A (en) * | 2017-12-31 | 2018-04-20 | 深圳市华星光电半导体显示技术有限公司 | The driving method and display device of a kind of display panel |
| CN109064994A (en) * | 2018-11-07 | 2018-12-21 | 惠科股份有限公司 | Display device and its driving method and driving assembly |
| CN109064962A (en) * | 2018-08-31 | 2018-12-21 | 重庆惠科金渝光电科技有限公司 | A kind of display panel and its image control apparatus and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102326029B1 (en) * | 2015-03-13 | 2021-11-15 | 삼성디스플레이 주식회사 | Data compensation device and display device having the same |
| KR102510046B1 (en) * | 2016-07-18 | 2023-03-15 | 삼성전자주식회사 | Display apparatus and controlling method of thereof |
| CN109584826A (en) * | 2018-12-24 | 2019-04-05 | 惠科股份有限公司 | Driving circuit, display panel drive device and display device |
-
2018
- 2018-12-24 CN CN201811587918.5A patent/CN109584826A/en active Pending
-
2019
- 2019-12-06 WO PCT/CN2019/123639 patent/WO2020134970A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481689A (en) * | 2017-08-25 | 2017-12-15 | 惠科股份有限公司 | Image processing apparatus and its processing method |
| CN107529049A (en) * | 2017-08-28 | 2017-12-29 | 惠科股份有限公司 | Display device images processing method, Image Processing Structure and display device |
| CN107945758A (en) * | 2017-12-31 | 2018-04-20 | 深圳市华星光电半导体显示技术有限公司 | The driving method and display device of a kind of display panel |
| CN109064962A (en) * | 2018-08-31 | 2018-12-21 | 重庆惠科金渝光电科技有限公司 | A kind of display panel and its image control apparatus and method |
| CN109064994A (en) * | 2018-11-07 | 2018-12-21 | 惠科股份有限公司 | Display device and its driving method and driving assembly |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134970A1 (en) * | 2018-12-24 | 2020-07-02 | 惠科股份有限公司 | Driver circuit, display panel driver device, and display device |
| CN111899696A (en) * | 2019-05-05 | 2020-11-06 | 咸阳彩虹光电科技有限公司 | Pixel matrix driving method and device and display |
| CN111899696B (en) * | 2019-05-05 | 2022-03-15 | 咸阳彩虹光电科技有限公司 | Pixel matrix driving method and device and display |
| CN110556077A (en) * | 2019-09-26 | 2019-12-10 | 京东方科技集团股份有限公司 | Voltage output circuit, driving circuit, display panel and display device |
| CN110867168A (en) * | 2019-10-15 | 2020-03-06 | 昆山龙腾光电股份有限公司 | Gamma voltage adjusting circuit, adjusting method and display device |
| CN110867168B (en) * | 2019-10-15 | 2022-04-26 | 昆山龙腾光电股份有限公司 | Gamma voltage adjusting circuit, adjusting method and display device |
| CN113939862A (en) * | 2020-03-27 | 2022-01-14 | 京东方科技集团股份有限公司 | Display panel and driving method thereof |
| CN113939862B (en) * | 2020-03-27 | 2023-12-08 | 京东方科技集团股份有限公司 | Display panel and driving method thereof |
| CN113470586A (en) * | 2021-05-31 | 2021-10-01 | 惠科股份有限公司 | Driving circuit, driving method and debugging method of display panel |
| CN113470586B (en) * | 2021-05-31 | 2022-03-22 | 惠科股份有限公司 | Driving circuit, driving method and debugging method of display panel |
| CN115631713A (en) * | 2022-11-09 | 2023-01-20 | 武汉天马微电子有限公司 | Driving module and driving method thereof, display panel and display device |
| CN116469354A (en) * | 2023-04-27 | 2023-07-21 | 惠科股份有限公司 | Gamma circuit, driving circuit of display panel and display panel |
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| WO2020134970A1 (en) | 2020-07-02 |
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