CN106098012B - Liquid Crystal Display And Method For Driving, electronic device - Google Patents
Liquid Crystal Display And Method For Driving, electronic device Download PDFInfo
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- CN106098012B CN106098012B CN201610685890.3A CN201610685890A CN106098012B CN 106098012 B CN106098012 B CN 106098012B CN 201610685890 A CN201610685890 A CN 201610685890A CN 106098012 B CN106098012 B CN 106098012B
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- source electrode
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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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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention provides a kind of driving method of liquid crystal display, includes the following steps：Sequence controller exports source electrode enable signal to source electrode driver；Grid enable signal is exported to gate drivers；The source electrode driver receives the source electrode enable signal, and the duty ratio exported to the source drive signal of source electrode line is reduced based on the source electrode enable signal；The gate drivers receive the grid enable signal, and the duty ratio exported to the gate drive signal of grid line is reduced based on the grid enable signal.The present invention also provides a kind of liquid crystal display and electronic device, liquid crystal display can be 4 domain structures, and the quantity of electronic component can be reduced on the basis of improving colour cast, improves the aperture opening ratio of pixel.
Description
Technical field
The invention belongs to technical field of liquid crystal display, in particular, being related to a kind of Liquid Crystal Display And Method For Driving, electricity
Sub-device.
Background technique
VA (Vertical Alignment, vertical orientation) display pattern is excellent with its high contrast and without friction matching etc.
Gesture becomes the common display pattern of large size TFT-LCD.Colour cast problem under different perspectives is VA display pattern product design
The key subjects that must be faced.
Currently, 8 domain structures design is the usual means that VA display pattern improves big visual angle colour cast problem.In 8 domain structures,
Since charge share acts on, the current potential of sub- farmland (Sub Domain) is lower than the current potential of main farmland (Main Domain), realize sub- farmland and
Main farmland shows different brightness, and the different orientation of liquid crystal molecule is controlled with this, realizes the compensation to big visual angle colour cast.
But in 8 domain structures, in addition to needing other thin-film transistor structure and corresponding capacitance structure, these knots
The presence meeting of structure is so that the aperture opening ratio of pixel declines.In addition, existing colour cast compensation is improved by dragging down the brightness on sub- farmland
Liquid crystal display panel colour cast, since overall brightness reduces, the light transmittance of liquid crystal display panel can also decline, and seriously affect liquid crystal display
The display quality of device.
Summary of the invention
The purpose of the present invention is to provide a kind of liquid crystal display, can on the basis of improving the colour cast problem at big visual angle,
Pixel aperture ratio and liquid crystal display panel transmitance are improved simultaneously.
Another object of the present invention is to provide the electronic devices using above-mentioned liquid crystal display.
To achieve the goals above, embodiment of the present invention provides the following technical solutions：
The present invention provides a kind of driving method of liquid crystal display, includes the following steps：
Sequence controller exports source electrode enable signal to source electrode driver；Grid enable signal is exported to gate drivers；
The source electrode driver receives the source electrode enable signal, and reduces output to source based on the source electrode enable signal
The duty ratio of the source drive signal of polar curve；The gate drivers receive the grid enable signal, and are based on the grid
Enable signal reduces the duty ratio exported to the gate drive signal of grid line.
Wherein, the source electrode enable signal adjusts the duty ratio difference of the source drive signal of input adjacent source polar curve.
Wherein, the grid enable signal adjusts the duty ratio difference of the source drive signal of input adjacent gate polar curve.
Wherein, the source electrode enable signal and the grid enable signal are pulse signal.
Wherein, when the source electrode enable signal is low level, the source drive signal that the source electrode driver generates is
Low level；When the source electrode enable signal is high level, the source drive signal that the source electrode driver generates is constant.
Wherein, when the source electrode makes driving signal low level, the source drive signal of the source electrode driver output
Voltage value it is identical as common voltage value.
Wherein, when the grid enable signal is low level, the gate drive signal of the gate drivers output is
Low level；When the grid enable signal is high level, the gate drive signal of the gate drivers output is constant.
The present invention also provides a kind of liquid crystal display, including source electrode driver, gate drivers and multiple pixels, the sources
Driver is used to export source electrode driving signal to the multiple pixel, and the gate drivers are used for defeated to the multiple pixel
Gate drive signal out further includes sequence controller, and the sequence controller is used to make to source electrode driver output source electrode
Can signal and to the gate drivers export grid enable signal；It is enabled that the source electrode driver is also used to receive the source electrode
Signal, and the duty ratio of the source drive signal based on source electrode enable signal reduction output；The gate drivers
It is also used to receive the grid enable signal, and the gate drive signal of output is reduced based on the grid enable signal
Duty ratio.
Wherein, the pixel is arranged in matrix, and the source electrode enable signal adjusts the source drive of input adjacent column pixel
The duty ratio of signal is different, and the grid enable signal adjusts the duty ratio of the gate drive signal of input adjacent rows pixel not
Together.
The present invention also provides a kind of electronic devices, including liquid crystal display described in above-mentioned any one.
The embodiment of the present invention has the following advantages that or beneficial effect：
Source electrode is exported to source electrode driver by sequence controller in Liquid Crystal Display And Method For Driving of the present invention to enable
Signal and to gate drivers export grid enable signal, control source electrode driver generate source drive signal duty ratio and
The duty ratio for the gate drive signal that gate drivers generate is controlled, and then controls the charged state of different pixels, is realized to big
The colour cast at visual angle compensates.The liquid crystal display of electronic device of the present invention can be 4 domain structures, reduce the number of electronic component
Amount, improves the aperture opening ratio of pixel.
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
It obtains other drawings based on these drawings.
Fig. 1 is the driving method flow diagram of liquid crystal display of the present invention.
Fig. 2 is that have driving method source drive signal described in Fig. 1 and source electrode enable signal time diagram.
Fig. 3 is that have driving method gate drive signal described in Fig. 1 and grid enable signal time diagram.
Fig. 4 is the structural schematic block diagram of liquid crystal display 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, those of ordinary skill in the art are obtained all without making creative work
Other embodiments shall fall within the protection scope of the present invention.
In addition, the explanation of following embodiment is referred to the additional illustration, the spy that can be used to implement to illustrate the present invention
Determine embodiment.Direction terms mentioned in the present invention, for example, "upper", "lower", "front", "rear", "left", "right", "inner",
"outside", " side " etc. are only the directions with reference to annexed drawings, and therefore, the direction term used is to more preferably, more clearly say
The bright and understanding present invention, rather than indicate or imply signified device or element and must have a particular orientation, with specific square
Position construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, is also possible to detachably connected, or integrally connects
It connects；It can be mechanical connection；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.If this
Occur the term of " process " in specification, refers not only to independent process, when can not clearly be distinguished with other process, as long as
Effect desired by the process is able to achieve then to be also included in this term.In addition, the numerical value model indicated in this specification with "~"
Enclose the range for referring to that the numerical value for recording "~" front and back is included as minimum value and maximum value.In the accompanying drawings, structure
Similar or identical is indicated by the same numeral.
Referring to Fig. 1, the driving method of liquid crystal display of the invention, mainly includes the following steps：
S201：Sequence controller exports source electrode enable signal (Output Enable, OE) to source electrode driver；To grid
Driver exports grid enable signal.
Specifically, please referring to Fig. 2 and Fig. 3.The source electrode enable signal OE1 and grid of the sequence controller output make
Energy signal OE2 is a pulse signal.The source electrode enable signal OE1 is input into source electrode driver, and the grid is enabled
Signal OE2 is input into gate drivers.
S202：The source electrode driver receives the source electrode enable signal, and defeated based on source electrode enable signal reduction
Out to the duty ratio of the source drive signal of source electrode line；The gate drivers receive the grid enable signal, and are based on institute
Stating grid enable signal reduces the duty ratio exported to the gate drive signal of grid line.
Continuing in conjunction with referring to Fig.2, the source electrode driver provides source drive signal, the grid for a plurality of source electrode line
Driver provides gate drive signal for a plurality of grid line.Source electrode enable signal OE1 or output source are not exported in sequence controller
When pole enable signal OE1 is high level, source drive signal D2 that the source electrode driver is transmitted into each pixel and initial
Source drive signal D1 is identical, and source drive signal D2 perseverance is high level at this time；When the source electrode of sequence controller output makes
When energy signal OE1 is low level, the source electrode driver receives the low level source electrode enable signal OE1.Initial source electrode at this time
Driving signal D1 is that either high level or low level, source electrode driver exports low level source drive signal D2；When
When the source electrode enable signal OE1 of the sequence controller output is high level, the source electrode driver receives the high level
Source electrode enable signal OE1.The source drive signal level attribute that the source electrode driver generates remains unchanged (the positive and negative category of level
Property it is also constant), the source drive signal D2 that source electrode driver is transmitted into each pixel be high level.As shown in Fig. 2, through source electrode
After enable signal OE1 is adjusted, the duty ratio T2 for the source drive signal D2 that source electrode driver is transmitted into each pixel is initial
The half of the duty ratio T1 of source drive signal D1.That is, being adjusted in the present invention by a source electrode enable signal OE1
Save the duty ratio of the source drive signal of the output of source electrode driver.It is understood that the source electrode enable signal adjusting is defeated
The duty ratio for entering the source drive signal of adjacent source polar curve is different.
Preferably, when the source drive signal is low level, the source drive signal of the source electrode driver output
Voltage value it is identical as common voltage value Vcom.Common voltage value Vcom refers to the voltage value in common electrode layer.
It is understood that the frequency of the source electrode enable signal OE1 is greater than the frequency of the initial source electrode driving signal D1
Rate.
Continuing with combination refering to Fig. 3, when sequence controller does not export grid enable signal OE2, the gate drivers
The duty ratio of the gate drive signal G2 transmitted into each pixel is identical as initial G1 duty ratio；When sequence controller output
When the grid enable signal OE2 is low level, the gate drivers receive the low level grid enable signal OE2.This
The initial gate drive signal G1 of the generation of gate drivers described in Shi Buguan is high level or low level, gate drivers output
Gate drive signal G2 be low level；When the grid enable signal OE2 of sequence controller output is high level
When, the gate drivers receive the grid enable signal OE2 of the high level.The gate driving letter that the gate drivers generate
Number level attribute remains unchanged.To in one cycle, after grid enable signal OE2 adjusting, gate drivers are to each
The duty ratio T4 of the gate drive signal D2 transmitted in pixel is less than initial source electrode drive signal duty cycle T3.That is, this
The duty ratio of the gate drive signal of the output of gate drivers is adjusted in invention by grid enable signal OE2.It can manage
Solution, the duty ratio that the grid enable signal adjusts the source drive signal of input adjacent gate polar curve are different.
It is understood that the frequency of the grid enable signal OE2 is greater than the frequency of initial gate drive signal G1.
It is understood that including the pixel of multiple array arrangements in liquid crystal display.Same is corresponded to one-row pixels
Grid line, the corresponding source electrode line of same row pixel.The gate drive signal is input into pixel by grid line to picture
For element to control the opening and closing of pixel switch, the source drive signal is input into pixel through source electrode line and pixel switch
In charge to pixel.It, can be by controlling the duty ratio of its gate drive signal to control for the pixel of adjacent rows
The charging time of adjacent rows pixel is different, so that adjacent rows pixel shows different grayscale.Charging time is longer, the ash that pixel is shown
Rank is bigger.It, can be by controlling the duty ratio of its source drive signal to control adjacent column pixel for the pixel of adjacent column
Charging voltage virtual value it is different so that the grayscale that adjacent column pixel is shown is not identical.Charging voltage virtual value is bigger, and pixel is aobvious
The grayscale shown is bigger.
Further specifically, when the gate drive signal is high level, the conducting of institute's pixel switch, source drive signal
It charges for pixel.Also, only when source drive signal is high level, (source drive signal voltage value is greater than public affairs at this time
Common voltage value Vcom) when, the source drive signal could charge for pixel.
The enabled letter of source electrode is exported to source electrode driver by sequence controller in the driving method of liquid crystal display of the present invention
Number and to gate drivers export grid enable signal, control source electrode driver generate source drive signal duty ratio and control
The duty ratio for the gate drive signal that gate drivers processed generate, and then the charged state of each pixel is controlled, it realizes to big view
The colour cast at angle compensates.Liquid crystal display of the invention can be 4 domain structures, reduce the quantity of electronic component, improve picture
The aperture opening ratio of element.
Referring to Fig. 4, the present invention also provides a kind of liquid crystal display 100, including source electrode driver 10, gate drivers 20
With multiple pixels 30 and sequence controller 40.Preferably, the multiple 30 array arrangement of pixel.
Sequence controller 40, for the source electrode driver 10 export source electrode enable signal and
Grid enable signal is exported to the gate drivers 20.
Source electrode driver 10, for exporting source electrode driving signal to the multiple pixel 30 through source electrode line；And it is also used to connect
The source electrode enable signal that the sequence controller 40 exports is received, and output is reduced to the institute of pixel based on the source electrode enable signal
State the duty ratio of source drive signal.And then reduce the virtual value of the source drive signal voltage for pixel charging.
Gate drivers 20, for exporting gate drive signal to the multiple pixel 30 through grid line；And it is also used to connect
The grid enable signal that the sequence controller 40 exports is received, and output is reduced to the institute of pixel based on the grid enable signal
State the duty ratio of source drive signal.And then it shorten to the time of pixel charging.
Source electrode enable signal to source electrode driver exported by sequence controller in liquid crystal display 100 of the present invention and to grid
Driver exports grid enable signal, and the duty ratio and control grid for the source drive signal that control source electrode driver generates are driven
The duty ratio for the gate drive signal that dynamic device generates, and then the charged state of each pixel is controlled, realize the colour cast to big visual angle
Compensation.Liquid crystal display 100 of the invention can be 4 domain structures, reduce the quantity of electronic component, improve opening for pixel
Mouth rate.
The present invention also provides a kind of electronic devices, using above-mentioned liquid crystal display 100, the electronic device may include but
It is not limited to：Any product having a display function such as Electronic Paper, LCD TV, mobile phone, Digital Frame, tablet computer or
Component.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are different
Surely identical embodiment or example is referred to.Moreover, the particular features, structures, materials, or characteristics of description can be any one
It can be combined in any suitable manner in a or multiple embodiment or examples.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (8)
1. a kind of driving method of liquid crystal display, which is characterized in that include the following steps：
Sequence controller exports source electrode enable signal to source electrode driver；Grid enable signal is exported to gate drivers；
The source electrode driver receives the source electrode enable signal, and reduces output to source electrode line based on the source electrode enable signal
Source drive signal duty ratio；The gate drivers receive the grid enable signal, and enabled based on the grid
Signal reduces the duty ratio exported to the gate drive signal of grid line；
The source electrode enable signal and the grid enable signal are pulse signal；
When the source electrode enable signal is low level, the source drive signal that the source electrode driver generates is low level；When
When the source electrode enable signal is high level, the source drive signal that the source electrode driver generates is constant.
2. the driving method of liquid crystal display as described in claim 1, which is characterized in that the source electrode enable signal adjusts defeated
The duty ratio for entering the source drive signal of adjacent source polar curve is different.
3. the driving method of liquid crystal display as described in claim 1, which is characterized in that the grid enable signal adjusts defeated
The duty ratio for entering the source drive signal of adjacent gate polar curve is different.
4. the driving method of liquid crystal display as described in claim 1, which is characterized in that when the source electrode makes driving signal
When low level, the voltage value of the source drive signal of the source electrode driver output is identical as common voltage value.
5. the driving method of liquid crystal display as described in claim 1, which is characterized in that when the grid enable signal is low
When level, the gate drive signal of the gate drivers output is low level；When the grid enable signal is high level,
The gate drive signal of the gate drivers output is constant.
6. a kind of liquid crystal display, including source electrode driver, gate drivers and multiple pixels, the source electrode driver be used for
The multiple pixel exports source electrode driving signal, and the gate drivers are used for the multiple pixel output gate driving letter
Number, which is characterized in that it further include sequence controller, the sequence controller is used for enabled to source electrode driver output source electrode
Signal and to the gate drivers export grid enable signal；The source electrode driver is also used to receive the enabled letter of the source electrode
Number, and the duty ratio of the source drive signal based on source electrode enable signal reduction output；The gate drivers are also
Accounting for for the gate drive signal of output is reduced for receiving the grid enable signal, and based on the grid enable signal
Empty ratio；
The source electrode enable signal and the grid enable signal are pulse signal；
When the source electrode enable signal is low level, the source drive signal that the source electrode driver generates is low level；When
When the source electrode enable signal is high level, the source drive signal that the source electrode driver generates is constant.
7. liquid crystal display as claimed in claim 6, which is characterized in that the pixel is arranged in matrix, and the source electrode is enabled
The duty ratio that Signal Regulation inputs the source drive signal of adjacent column pixel is different, and it is adjacent that the grid enable signal adjusts input
The duty ratio of the gate drive signal of row pixel is different.
8. a kind of electronic device, which is characterized in that including liquid crystal display described in claim 6-7 any one.
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| CN201610685890.3A CN106098012B (en) | 2016-08-18 | 2016-08-18 | Liquid Crystal Display And Method For Driving, electronic device |
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| CN201610685890.3A CN106098012B (en) | 2016-08-18 | 2016-08-18 | Liquid Crystal Display And Method For Driving, electronic device |
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| CN107507575A (en) * | 2017-10-24 | 2017-12-22 | 惠科股份有限公司 | A kind of display device and its driving method and drive system |
| CN109192160A (en) * | 2018-09-30 | 2019-01-11 | 惠科股份有限公司 | A kind of driving method of display panel, system and display device |
| CN109119045B (en) * | 2018-11-01 | 2024-05-28 | 惠科股份有限公司 | Display driving device, display device and display module |
| CN109671411B (en) * | 2019-01-30 | 2020-10-27 | 惠科股份有限公司 | Driving device and driving method of display panel and display equipment |
| CN111367126B (en) * | 2020-03-19 | 2023-12-01 | Tcl华星光电技术有限公司 | Array substrate and display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3071642D1 (en) * | 1979-12-19 | 1986-07-24 | Seiko Epson Corp | A voltage regulator for a liquid crystal display |
| US5297129A (en) * | 1992-12-24 | 1994-03-22 | Optical Disc Corporation | Waveform shaping method and apparatus for optical recording |
| KR20080094394A (en) * | 2007-04-20 | 2008-10-23 | 삼성전자주식회사 | Method for driving light source, driving circuit for performing the same, light source assembly having the driving circuit and display device having the driving circuit |
| CN202142278U (en) * | 2011-06-29 | 2012-02-08 | 重庆徐港电子有限公司 | LCD possessing stable display effect and employing microprocessor |
| CN103280193B (en) * | 2013-05-28 | 2015-11-25 | 深圳市华星光电技术有限公司 | A kind of backlight drive circuit, liquid crystal indicator and backlight driving method |
| CN105469757A (en) * | 2015-12-10 | 2016-04-06 | 深圳市华星光电技术有限公司 | Display panel scan driving method |
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