CN106486077A - A kind of driving method improving big visual angle colour cast, display floater and display device - Google Patents
A kind of driving method improving big visual angle colour cast, display floater and display device Download PDFInfo
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- CN106486077A CN106486077A CN201611244758.5A CN201611244758A CN106486077A CN 106486077 A CN106486077 A CN 106486077A CN 201611244758 A CN201611244758 A CN 201611244758A CN 106486077 A CN106486077 A CN 106486077A
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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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- 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
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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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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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of driving method improving display floater big visual angle colour cast, display floater and display device.The described driving method improving display floater big visual angle colour cast includes：Receive source data signals；Shorten the high potential persistent period of described source data signals；Generate the data signal after N framing control；Drive the pixel of described display floater according to the data signal after described adjustment；Wherein, in the data signal after described adjustment, nth frame is equal with the voltage of the waveform of N+2 frame and opposite polarity, and N+1 frame is equal with the voltage of the waveform of N+3 frame and opposite polarity, and N is positive integer.By the way, data signal after adjustment compares the high potential decreased duration of normal data signal, when being charged to pixel, partial pixel brightness can be less than normal pixel, obtain color bias improvement, and the feature of the data signal after adjusting makes the ion residues of different pixels roughly equal, reduce the risk that image retention occurs.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of driving method improving big visual angle colour cast, display surface
Plate and display device.
Background technology
Colour cast be TFT-LCD picture show bad in a kind of relatively common phenomenon, serious situation may make product
Fall etc., affects product benefit.The feature being rotated in vertical direction due to VA (Vertical Alignment) mode liquid crystal molecule,
Lead to contrast when watching in side to decline fairly obvious, obvious color offset phenomenon under different angle of visibilities, occurs.Low colour cast
It is the consistent pursuit of VA mode LCD, modal way is exactly the low colour cast structure of multidomain (Domain) technology, lead to
Cross the driving voltage reducing VA liquid crystal, low colour cast technology is exchanged for the cost reducing subregion brightness.Yet with not same district
Brightness between the pixel of domain has difference, and the speed of its ion accumulation is inconsistent, and after long-time display, zones of different pixel is residual in ion
In the presence of staying, its voltage symmetry can be destroyed, and serious image retention easily.
Content of the invention
The invention mainly solves the technical problem of provide a kind of driving method improving big visual angle colour cast, display floater and
Display device, it can be avoided that zones of different pixel occurs because luminance difference leads to ion accumulation different when lighting for a long time
Image retention problem.
For solving above-mentioned technical problem, one aspect of the present invention is to provide one kind to improve display floater to regard greatly
The inclined driving method of role, methods described includes：Receive source data signals；Shorten described source data signals high potential continue when
Between；Generate the data signal after N framing control；Drive the pixel of described display floater according to the data signal after described adjustment；Its
In, in the data signal after described adjustment, nth frame is equal with the voltage of the waveform of N+2 frame and opposite polarity, N+1 frame
And opposite polarity equal with the voltage of the waveform of N+3 frame, N is positive integer.
Wherein, the step of the described high potential persistent period shortening described source data signals includes：In described source data letter
Number partial charge cycles in, keep a period of time electronegative potential, other times be high potential；Wherein, electronegative potential lasting when
Between make receive dark data signal pixel charge rate be the pixel receiving brighter data signal charge rate
73%-78%.
Wherein, the described pixel of described display floater arranges in a matrix fashion, and N data line connects the 2X- of Nth column
The 2X+1 row of 1 row, the pixel of 2X row and N+1 row, the charging to control described pixel for the pixel of 2X+2 row；?
It is additionally provided with least string additional pixels, described additional pixels show to picture does not produce before 1 row and after last string
Raw impact；Wherein, X is odd number, and is more than 0.
Wherein, the described pixel of described display floater arranges in a matrix fashion, and N data line connects the 2X+ of Nth column
The 2X-1 row of 1 row, 2X+2 row and N+1 row, the charging to control described pixel for the pixel of 2X row；In the 1st row
Above it is additionally provided with least string additional pixels with after last string, described additional pixels show to picture and do not produce shadow
Ring；Wherein, X is odd number, and is more than 0.
Wherein, during the display of different frame each described pixel all can receive brighter positive polarity data signal,
Brighter negative polarity data signal, dark positive polarity data signal and dark negative polarity data signal, and each described picture
The number of times of the data signal of each state that element receives is identical.
For solving above-mentioned technical problem, another technical solution used in the present invention is to provide a kind of display floater, described
Display floater includes the pixel arranging in a matrix fashion, and wherein, during the display of different frame, each described pixel all can connect
Receive brighter positive polarity data signal, brighter negative polarity data signal, dark positive polarity data signal and dark bearing
Polarity data signal, and the number of times of the data signal of each state that each described pixel receives is identical.
Wherein, the 2X-1 row of the N data line connection Nth column of described display floater, 2X row and N+1 row
2X+1 row, the charging to control described pixel of the pixel of 2X+2 row；Also set before the 1st row and after last string
It is equipped with least string additional pixels, described additional pixels show on picture and do not produce impact；Wherein, X is odd number, and is more than 0.
Wherein, the N data line of described display floater connects the 2X+1 row of Nth column, 2X+2 row and N+1 row
2X-1 row, the charging to control described pixel of the pixel of 2X row；Also set before the 1st row and after last string
It is equipped with least string additional pixels, described additional pixels show on picture and do not produce impact；Wherein, X is odd number, and is more than 0.
Wherein, the charge rate of the pixel of described dark data signal is the charge rate of the pixel of brighter data signal
73%-78%.
For solving above-mentioned technical problem, another technical solution used in the present invention is to provide a kind of display device, described
The light source module that display device includes display floater and provides light for described display floater, wherein, described display floater is upper
State display floater.
The invention has the beneficial effects as follows：It is different from the situation of prior art, during the display of different frame, each pixel
The state of experience is roughly the same, even if there are ion residues, the ion residues of different pixels also can be made roughly equal, by adjusting
Voltage output signal can ensure that the symmetry of its voltage, reduces risk image retention.
Brief description
Fig. 1 is that a kind of flow process of driving method one embodiment improving display floater big visual angle colour cast of the present invention is illustrated
Figure；
Fig. 2 is the number after adjusting in a kind of driving method one embodiment improving display floater big visual angle colour cast of the present invention
It is believed that number schematic diagram；
Fig. 3 is an arrangement mode schematic diagram of display panel pixel in driving method one embodiment of the present invention；
Fig. 4 is another arrangement mode schematic diagram of display panel pixel in driving method one embodiment of the present invention；
Fig. 5 is a kind of structural representation of display floater of the present invention one embodiment；
Fig. 6 is a kind of bright dark display schematic diagram of pixel of display floater of the present invention one embodiment；
Fig. 7 is a kind of structural representation of display device of the present invention one embodiment.
Specific embodiment
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Refer to Fig. 1, Fig. 1 is a kind of driving method one embodiment improving display floater big visual angle colour cast of the present invention
Schematic flow sheet, comprises the following steps：
S101：Receive source data signals.
Wherein, source data signals can be on state of voltage signal or dark-state voltage signal.
S102：Shorten the high potential persistent period of described source data signals.
Wherein it is possible to the selected section cycle time high potential persistent period is it is also possible to shorten in each charge cycle
The high potential persistent period.
S103：Generate the data signal after N framing control.
Wherein, in the data signal after described adjustment, nth frame is equal with the voltage of the waveform of N+2 frame and polarity phase
Instead, N+1 frame is equal with the voltage of the waveform of N+3 frame and opposite polarity, and N is positive integer.
S104：Drive the pixel of described display floater according to the data signal after described adjustment.
In the present embodiment, make the persistent period of its high potential than normal data signal short by adjusting data signal,
When being charged to pixel, partial pixel brightness can be less than normal pixel, and the nth frame of data signal after adjusting and the
The voltage of the waveform of N+2 frame is equal and opposite polarity, makes after the data signal of experience different frame, the ion residues of different pixels
Roughly equal, reduce the risk that image retention occurs in display.
Wherein, above-mentioned steps S102 specifically include：In the partial charge cycles of described source data signals, when keeping one section
Between electronegative potential, other times be high potential；Wherein, electronegative potential duration makes to receive the picture of dark data signal
The charge rate of element is between the 73%-78% of charge rate of the pixel receiving brighter data signal.
Refer to Fig. 2, Fig. 2 is in a kind of driving method one embodiment improving display floater big visual angle colour cast of the present invention
The schematic diagram of the data signal after adjustment, taking the driving of nth frame and N+1 frame as a example it is to be understood that when electronegative potential continues
Between be a, the cycle is T, is many will to be set according to the charge rate of actual product at least for a duration.Wherein, preferably
Ground, through electronegative potential charge pixel charge rate be the pixel charging normal charge rate 73%-78% between when, display
Effect preferable.
For example, when electronegative potential occurs one time in each two charge cycle, for high definition product, during due to charging
Between very long, that is, T is very big, data signal be subject to resistance capacitance delayed impact relatively small, so a may more than T/2 final
Charge rate could meet 73%-78%；Likewise, for ultra high-definition product, because the charging interval is very short, i.e. T very little, data is believed
The delayed impact number being subject to resistance capacitance can be very big, so a is likely less than T/4 and just disclosure satisfy that final rate of charge reaches 73%-
78% requirement, this is because the charge rate of ultra high-definition product itself is poor, now data signal weakens a bit, to charge rate
Impact can be very big.
Optionally, can also be arbitrary for the selection of electronegative potential and the potential difference of high potential.
Furthermore it is also possible to the display floater in the driving method of the present invention is done some improvement.Incorporated by reference to Fig. 3, as one
Plant embodiment, the pixel of the display floater in the driving method of the present invention arranges in a matrix fashion, N data line connects
The 2X+1 row of the 2X-1 row of Nth column, the pixel of 2X row and N+1 row, the pixel of 2X+2 row are to control pixel
Charge；It is additionally provided with least string additional pixels, additional pixels show to picture before the 1st row and after last string
Do not produce impact；Wherein, X is odd number, and is more than 0.
Incorporated by reference to Fig. 4, in other embodiments, the pixel of the display floater in the driving method of the present invention is in a matrix fashion
Arrangement, N data line connects the 2X-1 row of 2X+1 row, 2X+2 row and N+1 row of Nth column, the picture of 2X row
Element is to control the charging of pixel；It is additionally provided with least string additional pixels before the 1st row and after last string, add
Pixel shows on picture and does not produce impact；Wherein, X is odd number, and is more than 0.
Wherein, during the display of different frame, each pixel all can receive brighter positive polarity data signal, brighter
Negative polarity data signal, dark positive polarity data signal and dark negative polarity data signal, and each pixel receives
The data signal of each state number of times identical.
Specifically, brighter positive polarity data signal and brighter negative polarity data signal are in the data signal after adjustment
Pixel is made to show the data signal of normal brightness as source data signals, and dark positive polarity data signal and dark
Negative polarity data signal then be adjustment after data signal in make pixel display dark for normal display brightness
Data signal.
In application scenarios, the pixel of display floater is arranged in a matrix fashion, N data line connects Nth column
2X-1 row, the pixel of 2X row and N+1 row 2X+1 row, the charging to control pixel for the pixel of 2X+2 row,
Wherein X is the odd number more than 0, and is additionally provided with string additional pixels before the 1st row and after last string.First
First, source data signals are received；Then, obtain in each two charge cycle in source data signals, make data signal keep duration
Electronegative potential for a, other times are high potential, and wherein, a time cycle is T, and the relation of a and T makes at some
In period of time T, the charge rate receiving the pixel comprising electronegative potential data signal is to receive the data not comprising electronegative potential
The 75% of the charge rate of the pixel of signal；According to the mode of this high potential persistent period shortening source data signals, generate N frame
Data signal after adjustment, and the pixel of display floater is driven according to the data signal after adjustment.Because additional pixels are to picture
Face shows and does not produce impact, therefore does not consider the display problem of additional pixels.By the way, in the data signal mistake of different frame
Cheng Zhong, each pixel always can experience：The dark pixel of the brighter pixel of the brighter pixel of positive polarity, negative polarity, positive polarity
Pixel these four states dark with negative polarity, even if so pixel has ion residues during showing, also can make different pictures
The ion residues of element are roughly equal, this reduces pixel and show risk image retention.
Refer to Fig. 5 and Fig. 6, wherein Fig. 5 is a kind of structural representation of display floater of the present invention one embodiment, Fig. 6
The bright dark display schematic diagram of pixel for a kind of display floater of the present invention one embodiment.
The display floater of the present invention includes the pixel arranging in a matrix fashion, each pixel during the display of different frame
Brighter positive polarity data signal, brighter negative polarity data signal, dark positive polarity data signal and relatively all can be received
Dark negative polarity data signal, and the number of times of the data signal of each state that each pixel receives is identical.It is understood that
If there being substantially the same result, the method for the present invention is not limited in the way of shown in figure.
As a kind of embodiment, in Fig. 5, the N data line Date_n of display floater 50 connects the of Nth column
2X-1 row, the 2X+1 row of 2X row and N+1 row, the charging to control pixel 500 of the pixel 50 of 2X+2 row；The 1st
It is additionally provided with least string additional pixels 501 and corresponding data wire Date_0 sum before row and after last string
According to line Date_0 ', additional pixels 51 show on picture and do not produce impact；Wherein, X is odd number, and is more than 0.
In other embodiments, display floater N data line connect Nth column 2X+1 row, 2X+2 row and
The 2X-1 row of N+1 row, the charging to control pixel of the pixel of 2X row；Before the 1st row and after last string
It is additionally provided with least string additional pixels and corresponding data wire, additional pixels show on picture and do not produce impact；Wherein, X is
Odd number, and it is more than 0.
Wherein, display floater specifically can will not be described here as described in the display floater in above driving method.
Refer to Fig. 7, Fig. 7 is a kind of structural representation of display device of the present invention one embodiment.Aobvious in the present invention
The light source module 42 that showing device includes display floater 41 and provides light for display floater 41, wherein, display floater 41 is as above
Described display floater.
Wherein, display device also includes drive circuit (not shown), and drive circuit is driven according to above-mentioned driving method.
It should be understood that the disclosed drive improving big visual angle colour cast in several embodiments provided by the present invention
Dynamic method can be realized by adjusting the high electronegative potential of source data signals, wherein can by the potential difference of high electronegative potential, just
The frequency that the ratio of charge cycle shared by current potential, high electronegative potential occur in charge cycle and high electronegative potential are specifically in charging
The position joint effect activation result in cycle, so however it is not limited to above-mentioned manifestation mode.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (10)
1. a kind of driving method improving display floater big visual angle colour cast is it is characterised in that methods described includes：
Receive source data signals；
Shorten the high potential persistent period of described source data signals；
Generate the data signal after N framing control；
Drive the pixel of described display floater according to the data signal after described adjustment；
Wherein, in the data signal after described adjustment, nth frame is equal with the voltage of the waveform of N+2 frame and opposite polarity, the
N+1 frame is equal with the voltage of the waveform of N+3 frame and opposite polarity, and N is positive integer.
2. driving method as claimed in claim 1 is it is characterised in that the high potential of the described source data signals of described shortening continues
The step of time includes：
In the partial charge cycles of described source data signals, keep the electronegative potential of a period of time, other times are high potential；
Wherein, that the charge rate receiving the pixel of dark data signal is received is brighter for electronegative potential duration
The 73%-78% of the charge rate of the pixel of data signal.
3. driving method as claimed in claim 1 is it is characterised in that the described pixel of described display floater is arranged in a matrix fashion
Row, N data line connects the 2X+1 row of 2X-1 row, the pixel of 2X row and N+1 row of Nth column, 2X+2 row
The charging to control described pixel for the pixel；And it is additionally provided with least string after last string before the 1st row to add
Pixel, described additional pixels show on picture and do not produce impact；
Wherein, X is odd number, and is more than 0.
4. driving method as claimed in claim 1 is it is characterised in that the described pixel of described display floater is arranged in a matrix fashion
Row, N data line connects the 2X-1 row of 2X+1 row, 2X+2 row and N+1 row of Nth column, the pixel of 2X row
To control the charging of described pixel；It is additionally provided with least string additional pixels, institute before the 1st row and after last string
State additional pixels picture is shown and do not produce impact；
Wherein, X is odd number, and is more than 0.
5. the driving method according to Claims 1-4 is it is characterised in that during the display of different frame described in each
Pixel all can receive brighter positive polarity data signal, brighter negative polarity data signal, dark positive polarity data signal
With dark negative polarity data signal, and the number of times of the data signal of each state that each described pixel receives is identical.
6. a kind of display floater, described display floater includes the pixel arranging in a matrix fashion it is characterised in that in different frame
During display, each described pixel all can receive brighter positive polarity data signal, brighter negative polarity data signal, relatively
Dark positive polarity data signal and dark negative polarity data signal, and the data letter of each state of receiving of each described pixel
Number number of times identical.
7. display floater according to claim 6 is it is characterised in that the N data line of described display floater connects N
The 2X-1 row of row, the 2X+1 row of 2X row and N+1 row, the charging to control described pixel of the pixel of 2X+2 row；
It is additionally provided with least string additional pixels, described additional pixels show to picture before the 1st row and after last string
Do not produce impact；
Wherein, X is odd number, and is more than 0.
8. display floater according to claim 6 is it is characterised in that the N data line of described display floater connects N
The 2X+1 row of row, the 2X-1 row of 2X+2 row and N+1 row, the charging to control described pixel of the pixel of 2X row；
It is additionally provided with least string additional pixels, described additional pixels show to picture before the 1st row and after last string
Do not produce impact；
Wherein, X is odd number, and is more than 0.
9. display floater according to claim 6 is it is characterised in that the charge rate of the pixel of described dark data signal
It is the 73%-78% of the charge rate of the pixel of brighter data signal.
10. a kind of display device, the light source die that described display device includes display floater and provides light for described display floater
Group is it is characterised in that described display floater is the display floater as any one of claim 6-9.
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| CN107886923A (en) * | 2017-12-18 | 2018-04-06 | 惠科股份有限公司 | Display panel driving method and display device |
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| US11508286B2 (en) | 2019-09-29 | 2022-11-22 | Wuhan Tianma Micro-Electronics Co., Ltd. | Method for driving a display panel, display driving device and electronic device |
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Application publication date: 20170308 |