CN106205529B - Electric charge sharing method and device - Google Patents
Electric charge sharing method and device Download PDFInfo
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- CN106205529B CN106205529B CN201610578959.2A CN201610578959A CN106205529B CN 106205529 B CN106205529 B CN 106205529B CN 201610578959 A CN201610578959 A CN 201610578959A CN 106205529 B CN106205529 B CN 106205529B
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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
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Abstract
The invention discloses a kind of electric charge sharing method and devices.Wherein, this method includes：The shared signal of charge can be carried out by obtaining in display screen；Whether the amplitude of variation for judging that the shared signal of charge can be carried out is more than threshold value；It is shared that charge is carried out for the signal that amplitude of variation is more than threshold value.The present invention solves the big technical problem of driving chip overall power of display screen in the prior art, reduces chip power-consumption, reduces the operating temperature of chip.
Description
Technical field
The present invention relates to display fields, in particular to a kind of electric charge sharing method and device.
Background technology
Charge is shared to be mainly used in the driving chip of display screen (such as liquid crystal display), in order to reduce display
Screen carries out the power consumption of charge and discharge.
Charge sharing techniques in the prior art, there are two types of mode, first way is to take to believe the output of signal source
Number whole short circuits, regardless of the signal polarity of output signal, this charge sharing techniques, display screen pixel (i.e. image unit,
Also known as pixel) it overturns the when applied into every trade and compares power saving, but as liquid crystal display panel is increasing, resolution ratio is higher and higher,
In this case, if still the output of all signal sources is all shorted together, it is bound to cause the waste of power consumption；The second way
It is that the output signal polarity of opposed polarity is taken separately to do the shared technology of charge, Fig. 1 participates in the shared signal of charge with 6
For, for the red picture in normally-black liquid crystal display, it is total in participation charge to further describe unlike signal in the prior art
Enjoy front and back change of power consumption.As shown in Figure 1, the signal that participation charge is shared includes：Signal N+1, signal N+2, signal N+3, letter
In number N+4, signal N+5 and signal N+6, Fig. 1, be signal waveforms successively from left to right, shared power consumption diagram of not participating in charge and
It participating in charge and shares power consumption diagram, wherein R indicates red, and Q indicates the quantity of electric charge of power consumption ,+indicate that the signal is positive signal ,-
Indicate that the signal is minus polarity signal：
Signal N+1 is positive polarity, includes red green two color in display：First segment high level, is displayed in red R；During second segment is
Between level, green do not show；Below and so on, high level is displayed in red R, and low level green is not shown；
Signal N+2 is negative polarity, includes blue red dichromatism in display：First segment intermediate level, blue do not show that second segment is low
Level is displayed in red；Below and so on, intermediate level blue does not show that low level is displayed in red R；
Signal N+3 is positive polarity, includes turquoise dichromatism in display, turquoise all to show because being red picture
Show, waveform is shown as the straight line of intermediate level；
Signal N+4 is negative polarity, includes red green two color in display, first segment low level, is displayed in red R, among second segment
Level, green are not shown；Below and so on, low level is displayed in red R, and intermediate level green is not shown；
Signal N+5 is positive polarity, includes blue red dichromatism in display, first segment intermediate level is blue not show, second segment is high
Level is displayed in red R；Below and so on, intermediate level blue does not show that high level is displayed in red R；
Signal N+6 is negative polarity, includes turquoise dichromatism in display, does not show because being red picture, it is turquoise all
It need not show, waveform is shown as the straight line of intermediate level, wherein the integer that N is >=0.
As can be known from Fig. 1, the output signal polarity of opposed polarity separately do charge it is shared when, for example, the letter of positive polarity
Number do charge it is shared when, the signal of power consumption is mainly signal N+5, wherein power consumption is (2/3) Q, and if to be not involved in charge shared
When, the signal of power consumption is mainly signal N+5, wherein power consumption Q.It can similarly obtain, the signal of negative polarity does the shared power consumption of charge
Situation.It follows that in the prior art, the output signal polarity of opposed polarity separately do charge it is shared when, circuit consumption
Power consumption is (2/3) Q, although the power consumption Q shared relative to charge is not done, has saved (1/3) Q, circuit is for data
Indeclinable channel, if signal N+3 and signal N+6 is in waste power consumption.It is increasing with the liquid crystal display panel of display screen, it differentiates
Rate is higher and higher, and the rising of chip overall power and fever getting worse reduce the technical need of chip overall power increasingly
Urgently.
For the big problem of the driving chip overall power of display screen in the prior art, effective solution is not yet proposed at present
Scheme.
Invention content
An embodiment of the present invention provides a kind of electric charge sharing method and device, at least to solve display screen in the prior art
The big technical problem of driving chip overall power.
One side according to the ... of the embodiment of the present invention provides a kind of electric charge sharing method, including：It obtains in display screen
It can carry out the shared signal of charge；Whether the amplitude of variation that the shared signal of charge can be carried out described in judgement is more than threshold value；
It is shared that charge between signal is carried out for the signal that amplitude of variation is more than the threshold value.
Further, it is described can to carry out the shared signal of charge be column signal in the case of, can be into described in judgement
The amplitude of variation of the shared signal of row charge whether more than threshold value include：Using m column signals as one group, in described group can
It carries out the shared column signal of charge to be judged, is more than the signal of threshold value by amplitude of variation, charge is total between participation signal to determine
The column signal enjoyed.
Further, it is described can to carry out the shared signal of charge be column signal in the case of, can be into described in judgement
The amplitude of variation of the shared signal of row charge whether more than threshold value include：Column signal identical for institute's polarized, judges signal
Amplitude of variation whether be more than threshold value, with determine participate in signal between the shared column signal of charge.
Further, judge signal amplitude of variation whether more than threshold value include：Column signal identical for institute's polarized
It is weighted processing, the column signal after being weighted；Judge whether the amplitude of variation of the column signal after the weighting is more than threshold value.
Further, it is described can to carry out the shared signal of charge be column signal in the case of, can be into described in judgement
The amplitude of variation of the shared signal of row charge whether more than threshold value include：Signal is judged for the identical part column signal of polarity
Whether amplitude of variation is more than threshold value, with the shared column signal of charge between determining participation signal.
Further, further include：The column signal is detected when by the H rows for driving the column signal for each column signal
In the difference of H-1 row and H rows, if it exceeds the threshold, after then carrying out charge averagely, then driven；If be not above
Threshold value is then directly driven.
Further, the shared signal of charge that can carry out in acquisition display screen further includes：It is obtained by sensor acquisition
The shared signal of charge can be carried out by taking in display screen；It is total to alternatively, obtaining the charge that can carry out in display screen by circuit
The signal enjoyed.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of charge sharing means, may include：It obtains single
Member can carry out the shared signal of charge for obtaining in display screen；Judging unit described can carry out charge for judging
Whether the amplitude of variation of shared signal is more than threshold value；Shared cell, for being more than the signal of the threshold value for amplitude of variation
The charge carried out between signal is shared.
Further, the judging unit includes：First determining module, for the shared letter of charge can be carried out described
Number in the case of column signal, using m column signals as one group, to be carried out to the shared column signal of charge that can carry out in described group
Judge, be more than the signal of threshold value by amplitude of variation, is determined to participate in the column signal that charge is shared between signal.
Further, the judging unit includes：Second determining module, for the shared letter of charge can be carried out described
Number in the case of column signal, column signal identical for institute's polarized judges whether the amplitude of variation of signal is more than threshold value, with
Determine the column signal that charge is shared between participating in signal.
Another aspect according to the ... of the embodiment of the present invention, additionally provides a kind of storage medium, and storage medium includes the journey of storage
Sequence, wherein equipment where controlling storage medium when program is run executes the shared side of charge of any one of above-described embodiment
Method.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of processor, and processor is used to run program,
In, program executes the electric charge sharing method of any one of above-described embodiment when running.
Using the above embodiment of the present invention, the shared signal of charge can be carried out by obtaining in display screen, be obtained with passing through
The shared signal of charge that can carry out to judge whether to charge shared；The shared signal of charge can be carried out described in judgement
Whether whether amplitude of variation is more than threshold value, to be more than that threshold value is total to determine whether carrying out the charge between signal by amplitude of variation
It enjoys；It is shared that charge between signal is carried out for the signal that amplitude of variation is more than the threshold value.In embodiments of the present invention, it is based on energy
Whether the amplitude of variation for enough carrying out the shared signal of charge is more than threshold value, shared to determine whether to carry out the charge between signal, is reached
To shared purpose is carried out to charge, the shared efficiency of charge is improved, power consumption has been saved, has reduced the work temperature of chip
It spends, and then the technical problem that the driving chip overall power for solving display screen in the prior art is big.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is that a kind of opposed polarity separately does the shared waveform diagram of charge according to prior art；
Fig. 2 is a kind of flow chart of electric charge sharing method according to the ... of the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of optional driving circuit according to the ... of the embodiment of the present invention；
Fig. 4 is that charge according to the ... of the embodiment of the present invention shares waveform diagram；
Fig. 5 is a kind of schematic diagram of charge sharing means according to the ... of the embodiment of the present invention.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
According to embodiments of the present invention, a kind of embodiment of electric charge sharing method is provided, it should be noted that in attached drawing
The step of flow illustrates can execute in the computer system of such as a group of computer-executable instructions, although also,
Logical order is shown in flow chart, but in some cases, it can be to execute shown different from sequence herein or retouch
The step of stating.
Fig. 2 is a kind of flow chart of electric charge sharing method according to the ... of the embodiment of the present invention, as shown in Fig. 2, this method includes
Following steps：
Step S202, the shared signal of charge can be carried out by obtaining in display screen；
Step S204, whether the amplitude of variation for judging that the shared signal of charge can be carried out is more than threshold value；
It is shared to carry out the charge between signal for the signal that amplitude of variation is more than threshold value by step S206.
Using the above embodiment of the present invention, the shared signal of charge can be carried out by obtaining in display screen, be obtained with passing through
The shared signal of charge that can carry out to judge whether to charge shared；Judgement can carry out the variation of the shared signal of charge
Whether whether amplitude is more than threshold value, to be more than that threshold value is shared to determine whether carrying out the charge between signal by amplitude of variation；It is right
It is shared that the charge between signal is carried out in the signal that amplitude of variation is more than threshold value.In embodiments of the present invention, it is based on progress electricity
Whether the amplitude of variation of the shared signal of lotus is more than threshold value, shared to determine whether to carry out the charge between signal, has been reached to electricity
Lotus carries out shared purpose, improves the shared efficiency of charge, has saved power consumption, reduces the operating temperature of chip, and then solve
It has determined the big technical problem of driving chip overall power of display screen in the prior art.
Above-mentioned display screen can be liquid crystal display, can also be LED (Light Emitting Diode, light-emitting diodes
Pipe) display screen.
In an alternative embodiment, the charge that can carry out in above-mentioned acquisition display screen (such as liquid crystal display) is shared
Signal, can acquire to obtain in display screen by sensor can carry out the shared signal of charge, can also pass through acquisition
Circuit or acquisition device, which obtain in display screen, can carry out the shared signal of charge.
Whether the above-mentioned amplitude of variation for judging to judge to carry out the shared signal of charge is more than threshold value, i.e., judges energy respectively
Whether the amplitude of variation for enough carrying out the shared signal of charge is more than threshold value.
For example, can carry out including the first signal S1, second signal S2 and third signal S3 in the shared signal of charge,
In, the amplitude of the first signal S1 is A1, and the amplitude of variation of the first signal S1 is △ A1, and the amplitude of second signal S2 is A2, second
The amplitude of variation of signal is △ A2, and the amplitude of third signal S3 is A3, and the amplitude of variation of third signal S3 is △ A3, threshold value K.
It can specifically realize in the following way：
It in an alternative embodiment, can be by seeking the amplitude A 1 of the first signal S1, second signal S2 respectively
Amplitude A 2 and the amplitude of third signal S3 are the magnitude relationship of A3 and threshold k, and then judge the amplitude of variation △ of the first signal S1
Whether the amplitude of variation △ A3 of A1, the amplitude of variation △ A2 of second signal and third signal are more than threshold value, i.e.,：△ A1 are judged respectively
Whether > K are true, judge whether △ A2 > K are true, and judge whether △ A3 > K are true.
It, can be according to actual conditions, respectively to the amplitude A 1 of the first signal S1, in another optional embodiment
The amplitude A 2 of binary signal S2 and the amplitude of third signal S3 are after A3 is weighted, by the amplitude for seeking the first signal S1 after weighting
The amplitude of variation of the amplitude of variation △ A2 and third signal of the amplitude A 2 of second signal S2 after amplitude of variation △ A1 of A1, weighting
Whether △ A3 are more than threshold value.When the weight of the amplitude A 1 of the first signal S1 is r1, the weight of the amplitude A 2 of second signal S2 is r2,
When the weight of the amplitude A 3 of third signal S3 is r3, respectively in the amplitude progress to the first signal, second signal and third signal
In the case of weighting, judge whether r1* △ A1 > K are true respectively, judges whether r2* △ A2 > K are true, and judge r3* △ A3
Whether > K are true.
Whether the amplitude of variation that above-mentioned judgement can carry out the first shared signal of charge, second signal and third signal surpasses
The method for crossing threshold value includes but not limited to：Judged after directly judging and weight.
It should be noted that whether the amplitude of variation that above-mentioned judgement can carry out the shared signal of charge is more than threshold value, refer to
Be to judge can each to carry out whether the amplitude of variation of the shared signal of charge is more than threshold value.The first letter in above-described embodiment
Number, can be the arbitrary charge signal that can be carried out in the shared signal of charge, second signal can be that can carry out
Another arbitrary charge signal in the shared signal of charge, third signal can be that can carry out the shared signal of charge
In another arbitrary charge signal, that is, each signal in signal that can be shared to that can carry out charge judge,
Whether the amplitude of variation for being determined to carry out the shared each signal of charge is more than threshold value.
Above-mentioned threshold value can be pre-set, and can be a value, can also be multiple values, can multiple can carry out letter
The shared signal of charge corresponds to an identical threshold value between number.
Specifically, above-mentioned to judge more than threshold value, the signal that amplitude of variation is more than threshold value is carried out
Charge between signal is shared.Otherwise, if judging to be not above threshold value, the signal of threshold value is less than for amplitude of variation, not into
Charge between row signal is shared.For example, the signal that amplitude of variation is more than threshold value includes the first signal S1 and second signal S2, then make
It is shared that first signal S1 and second signal S2 participates in the charge between signal；The signal that amplitude of variation is less than threshold value includes third letter
Number S3, then third signal S3 it is shared to be not involved in the charge between signal.
That is, being more than threshold k in the amplitude of variation for judging the amplitude A 1 of the first signal S1, it is determined that the first signal
It is shared that S1 participates in the charge between signal；It is more than threshold k in the amplitude of variation for the amplitude A 2 for judging second signal S2, it is determined that the
It is shared that one signal S2 participates in the charge between signal；Judging that the amplitude of variation of the amplitude A 3 of third signal S3 is less than threshold k,
It is shared then to determine that third signal S3 is not involved in the charge between signal.
For example, it includes the first signal S1, second signal S2 and third signal that can carry out the signal that charge is shared between signal
S3, wherein the weight of the amplitude A 1 of the first signal S1 is r1, and the weight of the amplitude A 2 of second signal S2 is r2, third signal S3
Amplitude A 3 weight be r3 judge r1* △ A1 > K in the case where the amplitude to the first signal, second signal is weighted
It is whether true, judge whether r2* △ A2 > K are true, and judge r3* △ A3 > K, if set up.
When judging r1* △ A1 > K, it is shared that the first signal S1 carries out the charge between signal, when judge r1* △ A1≤
When K, it is shared that the first signal S1 is not involved in the charge between signal.
When judging r2* △ A2 > K, it is shared that second signal S2 carries out the charge between signal, when judge r2* △ A2≤
When K, it is shared that second signal S2 is not involved in the charge between signal.
When judging r3* △ A3 > K, it is shared that third signal S3 carries out the charge between signal, when judge r3* △ A3≤
When K, it is shared that second signal S3 is not involved in the charge between signal.
Using the above embodiment of the present invention, after acquisition can carry out the shared signal of charge, judgement can carry out charge
Which can carry out the shared signal of charge between signal for signal in shared signal, and it is total that determination can carry out the charge between signal
The signal enjoyed, it is shared to achieve the purpose that carry out charge, the shared efficiency of charge is improved, power consumption has been saved, is reduced
The operating temperature of chip, and then the technical problem that the driving chip overall power that solves display screen in the prior art is big.
Judge energy in the case where it is column signal that can carry out the shared signal of charge according to the above embodiment of the present invention
Enough carry out the shared signal of charge amplitude of variation whether more than threshold value include：Using m column signals as one group, in group can
It carries out the shared column signal of charge to be judged, is more than the signal of threshold value by amplitude of variation, charge is total between being determined to participate in signal
The column signal enjoyed.
Wherein, m is integer, m > 1.
For example, can carry out the shared signal of charge has p row, wherein p is natural number, and p > m choose the m in p row respectively
Row are used as one group, and the signal in arranging respectively each m judges, judge that the amplitude of variation which signal can be carried out in each m row is more than
Threshold value, and then determine that each m can carry out the shared signal of charge in arranging.
Progress is based in the case where it is column signal that can carry out the shared signal of charge using above-described embodiment
Whether the amplitude of variation of the shared signal of charge is more than threshold value between signal, with determine participate in signal between the shared column signal of charge,
Achieve the purpose that carry out charge shared, has improved the shared efficiency of charge, saved power consumption.
Judge energy in the case where it is column signal that can carry out the shared signal of charge according to the above embodiment of the present invention
Enough carry out the shared signal of charge amplitude of variation whether more than threshold value include：Column signal identical for institute's polarized judges
Whether the amplitude of variation of signal is more than threshold value, with the shared column signal of charge between determining participation signal.
Optionally, each signal has the polarity of each signal, wherein polarity can be just, or and it is negative, it can incite somebody to action
All signals with identical polar are as one group, such as using the signal of positive polarity as one group, using the signal of negative polarity as another
Outer one group, the signal with identical polar is judged respectively, judges the variation of each signal in the signal of identical polar
Whether amplitude is more than threshold value, and then determines the column signal that charge is shared between the identical signal of which polarity participates in signal.
Signal with identical polar is judged whether the amplitude of variation of the identical signal of polarity is more than threshold value, example respectively
Such as, can carry out the shared column signal of charge has positive and negative two polarity, and the column signal of all positive polaritys judges each just respectively
Whether the amplitude of variation of polar row model is more than threshold value；By the column signal of all negative polarity, each negative polarity is judged respectively
Whether the amplitude of variation of row model is more than threshold value.
For another example, using the column signal with positive polarity as A groups, the column signal with negative polarity is as B groups, respectively to A groups
Interior signal judged, is judged that the variation of signal which signal in A groups is more than threshold value, is carried out respectively to the signal in B groups
Judge, judge that the variation of signal which signal in B groups is more than threshold value, in turn, determines all positive signals in A groups respectively
In which signal can participate in that the charge between signal is shared, and which signal in all minus polarity signals in B groups determined respectively
The charge that can be participated between signal is shared.
Institute's polarized is based in the case where it is column signal that can carry out the shared signal of charge using above-described embodiment
Identical column signal judges that the amplitude of variation of which signal of each column signal of the identical column signal of institute's polarized is more than threshold respectively
Value determines which is that the charge that can be carried out between signal is shared in the identical signal of institute's polarized, has reached and has been total to charge
The purpose enjoyed improves the shared efficiency of charge, has saved power consumption.
According to the above embodiment of the present invention, judge signal amplitude of variation whether more than threshold value include：For institute's polarized
Identical column signal is weighted processing, the column signal after being weighted；Judge weighting after column signal amplitude of variation whether
More than threshold value.
Wherein, above-mentioned threshold value can be pre-set, and can be that each signal corresponds to a threshold value, can also multiple signals pair
Answer a threshold value.
Using the above embodiment of the present invention, by weighing the weight of unlike signal, important signal is given to a big power
Weight gives unessential signal to a small weight, judges whether the identical column signal of polarity after all weightings is more than threshold value,
Determine which is that the charge that can be carried out between signal is shared in the identical signal of institute's polarized, improves charge to a certain extent
Shared precision.
Judge energy in the case where it is column signal that can carry out the shared signal of charge according to the above embodiment of the present invention
Enough carry out the shared signal of charge amplitude of variation whether more than threshold value include：The identical part column signal of polarity is judged to believe
Number amplitude of variation whether be more than threshold value, with determine participate in signal between the shared column signal of charge.
Below by taking normally-black liquid crystal display as an example, the above embodiment of the present invention, in normally-black liquid crystal display, high level and low level are described in detail
Display color, intermediate level are not shown.As shown in Figure 1, in dual gate applications, each signal includes that two adjacent row are sub
Pixel, wherein dual gate refer to the double grid technique in CMOS, CMOS (Complementary Metal Oxide
Semiconductor) complementary metal oxide semiconductor.
Thus, it is possible to the identical signal of polarity (such as signal N+1, signal N+3 and signal N+5), signal is judged respectively
Whether amplitude of variation is more than threshold value, e.g., judges that the signal more than threshold value is the part signal in the identical signal of above-mentioned polarity
This is more than that signal of threshold value is determined to participate in the column signal that charge is shared between signal by (signal N+1 and signal N+5).
It is identical based on having in the case where it is column signal that can carry out the shared signal of charge using above-described embodiment
Part signal in polar signal is judged that determining the signal with identical polar, which is the electricity that can be carried out between signal
Lotus is shared, has achieved the purpose that carry out charge shared, also, further improves the shared efficiency of charge, has saved power consumption.
According to the above embodiment of the present invention, for each column signal, when driving the H rows of column signal, row letter is detected
Number H-1 row and H rows difference, if it exceeds the threshold, then carry out charge it is average after, then driven；If do not surpassed
Threshold value is crossed, then is directly driven.
Wherein, H > 1, H are integer.
In an alternative embodiment, driving circuit as shown in Figure 3, entire driving circuit are divided into digital circuit portion
Point and artificial circuit part.Digital circuits section includes I/O (Input/Output, i.e. input and output) buffer 315, busy mark
Generation circuit 301, command register 302, command decoder 303, γ corrections 304, resistor chain 305, FIFO (First Input
First Output, i.e. First Input First Output) 306, shift register 307, data register 308, timing generator circuit 311；
Analog portion includes D/A converting circuit 309, row output buffer 310, signal generating circuit 312, row output buffer
313.In order to achieve the purpose that reduce drive circuit power consumption, increase behind row output buffer 310 and row buffering circuit 313
Charge Compliance control circuit 314.
Wherein, γ in above-described embodiment correct 304 and FIFO306 be can be in optional device namely driving circuit
Do not include that γ corrects 304 and FIFO306.
R/W is selection input or output in Fig. 3, and data are read for 1, and data are write for 0；RS is data command input selection,
It is 0 selection instruction register for 1 selection data register；E is Enable Pin, and failing edge is effective；CLK is the clock signal of input.
When busy mark is 1, indicates driving circuit internal busy, do not receive external data；When busy mark is 0,3 Bits Serial data of data
A0~A2Input.R1~R100For the row output signal of driving circuit；C1~C300For the row output signal of driving circuit.
The serial data of input is converted into three color shade data of red, green, blue, input signal deposit after serioparallel exchange
FIFO.Input register reads in the data of x pixel every time, and (x can be one, not limit the value of x in the embodiment
It is fixed)；Then color grey scale signal is latched into data register in order under the control of shift register output signal again,
The data that a full line will be shown will be stored after the completion of reading, in data register.The gray scale digital signal of full line passes through
Digital analog converter selects analog voltage appropriate to export and drives output circuit to row, and row output buffer is by operational amplifier group
At.Row output buffer plays the role of increasing driving current, keeps the charging process of liquid crystal pixel rapider.Row scanning electricity
It is route timing generator circuit, signal generating circuit and buffer composition, realize row driving scanning and provides clock for other circuits
Effect, under the control of line-scan circuit and charge Compliance control circuit realize to LCD (Liquid Crystal
Display, i.e. liquid crystal display) pixel charge recycle, and row output driving circuit realize to LCD show drive.
In above-described embodiment, when reading data line, the data of complete a line can be read, it can also will be in the row
Data are divided into be read several times, e.g., is divided into 2 times or is divided into 6 inferior, the application does not limit this.When display data, it can incite somebody to action
The data of complete a line are shown, can also the data currently read be shown that the application does not limit this.
The column signal is detected in H-1 rows and H when driving the H rows of column signal using the above embodiment of the present invention
Capable difference, if it exceeds the threshold, after then carrying out charge averagely, then driven, and then better energy-saving effect is achieved, it saves
About power consumption.
According to the above embodiment of the present invention, the shared signal of charge that can carry out obtained in display screen further includes：Pass through
Sensor acquisition, which obtains in display screen, can carry out the shared signal of charge；Alternatively, obtaining the energy in display screen by circuit
Enough carry out the shared signal of charge.
Using the above embodiment of the present invention, by various acquisition modes, improving to obtain can carry out in display screen
The flexibility of the shared signal of charge.
In the following, the embodiment of the present invention, in certain application (such as dual gate applications), each signal packet is described in detail by Fig. 4
Containing two adjacent row sub-pixels, by taking normally-black liquid crystal display red R picture as an example, it is assumed that can carry out the shared signal of charge includes：
Signal N+1, signal N+2, signal N+3, signal N+4, signal N+5 and signal N+6 are signal waveforms, no successively from left to right
It participating in charge and shares power consumption diagram and participate in charge and share power consumption diagram, wherein R indicates red, and Q indicates the quantity of electric charge of power consumption ,+indicate
The signal is positive signal ,-indicate that the signal is minus polarity signal, as shown in Figure 4：
Signal N+1 is positive polarity, includes red green two color in display：First segment high level, is displayed in red R；During second segment is
Between level, green do not show；Below and so on, high level is displayed in red R, and low level green is not shown；
Signal N+2 is negative polarity, includes blue red dichromatism in display：First segment intermediate level, blue do not show that second segment is low
Level is displayed in red R；Below and so on, intermediate level blue does not show that low level is displayed in red R；
Signal N+3 is positive polarity, includes turquoise dichromatism in display, turquoise all to show because being red picture
Show, waveform is shown as the straight line of intermediate level；
Signal N+4 is negative polarity, includes red green two color in display, first segment low level, is displayed in red R, among second segment
Level, green are not shown；Below and so on, low level is displayed in red R, and intermediate level green is not shown；
Signal N+5 is positive polarity, includes blue red dichromatism in display, first segment intermediate level is blue not show, second segment is high
Level is displayed in red R；Below and so on, intermediate level blue does not show that high level is displayed in red R；
Signal N+6 is negative polarity, includes turquoise dichromatism in display, does not show because being red picture, it is turquoise all
It need not show, waveform is shown as the straight line of intermediate level.
Wherein, N is integer, N >=0.
Judge whether the amplitude of variation of signal N+1 is more than threshold value, judges the amplitude of variation of signal N+3 respectively respectively as a result,
Whether it is more than threshold value, and judges whether the amplitude of variation of signal N+5 is more than threshold value, detects the amplitude of variation of these three signals respectively
Whether large change (such as 1/2 amplitude) is had, if there is, it is determined that it is shared that amplitude of variation has the signal of large change to participate in charge
(such as signal N+1 and signal N+5)；It is not involved in if not (such as signal N+3).
It should be noted that if if signal N+1 is not involved in, charge is shared, and signal level variation consumes charge Q, signal N+
5 will also consume charge Q；And if signal N+1 and signal N+5 participate in charge and share, it only need to be first short by signal N+1 and signal N+5
It is connected to together, centre is first pulled to after the level of signal N+1 and signal N+5 is neutralized, disconnect after short circuit again respectively to negative direction
It draws, circuit only needs to consume (1/2) Q respectively, and signal N+3 does not consume charge, and therefore, which only consumes (1/2) Q.
Similarly, for signal N+2, signal N+4 and signal N+6, if signal N+2 and signal N+4 participate in the charge between signal
Shared, which also only needs consumption (1/2) Q.
Under sprite, picture as shown in Figure 4 saves (2/3) Q- (1/2) Q than the prior art, and at least (1/
6)Q。
The embodiment of the present invention additionally provides a kind of charge sharing means, as shown in figure 5, the device may include：It obtains single
Member 501, judging unit 503 and shared cell 505.
Acquiring unit 501 can carry out the shared signal of charge for obtaining in display screen；
Judging unit 503, whether the amplitude of variation for judging that the shared signal of charge can be carried out is more than threshold value；
Shared cell 505, it is shared for carrying out the charge between signal more than the signal of threshold value for amplitude of variation.
Using the above embodiment of the present invention, the shared signal of charge can be carried out by obtaining in display screen, be obtained with passing through
The shared signal of charge that can carry out to judge whether to charge shared；Judgement can carry out the variation of the shared signal of charge
Whether whether amplitude is more than threshold value, to be more than that threshold value is shared to determine whether carrying out the charge between signal by amplitude of variation；It is right
It is shared that the charge between signal is carried out in the signal that amplitude of variation is more than threshold value.In embodiments of the present invention, it is based on progress electricity
Whether the amplitude of variation of the shared signal of lotus is more than threshold value, shared to determine whether to carry out the charge between signal, has been reached to electricity
Lotus carries out shared purpose, improves the shared efficiency of charge, has saved power consumption, reduces the operating temperature of chip, and then solve
It has determined the big technical problem of driving chip overall power of display screen in the prior art.
Above-mentioned display screen can be liquid crystal display, can also be LED display.
In an alternative embodiment, the charge that can carry out in above-mentioned acquisition display screen (such as liquid crystal display) is shared
Signal, can acquire to obtain in liquid crystal display by sensor can carry out the shared signal of charge, can also pass through
Obtain the signal that can be carried out charge and share in circuit or acquisition device acquisition liquid crystal display.
Whether the amplitude of variation that above-mentioned judgement can carry out the shared signal of charge is more than threshold value, i.e., judging respectively can be into
Whether the amplitude of variation of the shared signal of row charge is more than threshold value.
For example, can carry out including the first signal S1, second signal S2 and third signal S3 in the shared signal of charge,
In, the amplitude of the first signal S1 is A1, and the amplitude of variation of the first signal S1 is △ A1, and the amplitude of second signal S2 is A2, second
The amplitude of variation of signal is △ A2, and the amplitude of third signal S3 is A3, and the amplitude of variation of third signal S3 is △ A3, threshold value K.
It can specifically realize in the following way：
It in an alternative embodiment, can be by seeking the amplitude A 1 of the first signal S1, second signal S2 respectively
Amplitude A 2 and the amplitude of third signal S3 are the magnitude relationship of A3 and threshold k, and then judge the amplitude of variation △ of the first signal S1
Whether the amplitude of variation △ A3 of A1, the amplitude of variation △ A2 of second signal and third signal are more than threshold value, i.e.,：△ A1 are judged respectively
Whether > K meet, and judge whether △ A2 > K meet, and judge whether △ A3 > K meet.
It, can be according to actual conditions, respectively to the amplitude A 1 of the first signal S1, in another optional embodiment
The amplitude A 2 of binary signal S2 and the amplitude of third signal S3 are after A3 is weighted, by the amplitude for seeking the first signal S1 after weighting
The amplitude of variation of the amplitude of variation △ A2 and third signal of the amplitude A 2 of second signal S2 after amplitude of variation △ A1 of A1, weighting
Whether △ A3 are more than threshold value.When the weight of the amplitude A 1 of the first signal S1 is r1, the weight of the amplitude A 2 of second signal S2 is r2,
When the weight of the amplitude A 3 of third signal S3 is r3, respectively in the amplitude progress to the first signal, second signal and third signal
In the case of weighting, judge whether r1* △ A1 > K meet respectively, judge whether r2* △ A2 > K meet, and judges r3* △ A3
Whether > K meet.
Whether the amplitude of variation that above-mentioned judgement can carry out the first shared signal of charge, second signal and third signal surpasses
The method for crossing threshold value includes but not limited to：Judged after directly judging and weight.
It should be noted that whether the amplitude of variation that above-mentioned judgement can carry out the shared signal of charge is more than threshold value, refer to
Be to judge can each to carry out whether the amplitude of variation of the shared signal of charge is more than threshold value.The first letter in above-described embodiment
Number, can be the arbitrary charge signal that can be carried out in the shared signal of charge, second signal can be that can carry out
Another arbitrary charge signal in the shared signal of charge, third signal can be that can carry out the shared signal of charge
In another arbitrary charge signal, that is, each signal in signal that can be shared to that can carry out charge judge,
Whether the amplitude of variation for being determined to carry out the shared each signal of charge is more than threshold value.
Above-mentioned threshold value can be pre-set, and can be a value, can also be multiple values, and can be each two can carry out
The shared corresponding threshold value of signal of charge between signal can also be that multiple can carry out the shared signal pair of charge between signal
Answer an identical threshold value.
Specifically, above-mentioned to judge more than threshold value, the signal that amplitude of variation is more than threshold value is carried out
Charge between signal is shared.Otherwise, if judging to be not above threshold value, the signal of threshold value is less than for amplitude of variation, not into
Charge between row signal is shared.For example, the signal that amplitude of variation is more than threshold value includes the first signal S1 and second signal S2, then make
It is shared that first signal S1 and second signal S2 participates in the charge between signal；The signal that amplitude of variation is less than threshold value includes third letter
Number S3, then third signal S3 it is shared to be not involved in the charge between signal.
That is, being more than threshold k in the amplitude of variation for judging the amplitude A 1 of the first signal S1, it is determined that the first signal
It is shared that S1 participates in the charge between signal；It is more than threshold k in the amplitude of variation for the amplitude A 2 for judging second signal S2, it is determined that the
It is shared that one signal S2 participates in the charge between signal；Judging that the amplitude of variation of the amplitude A 3 of third signal S3 is less than threshold k,
It is shared then to determine that third signal S3 is not involved in the charge between signal.
For example, it includes the first signal S1, second signal S2 and third signal that can carry out the signal that charge is shared between signal
S3, wherein the weight of the amplitude A 1 of the first signal S1 is r1, and the weight of the amplitude A 2 of second signal S2 is r2, third signal S3
Amplitude A 3 weight be r3 judge r1* △ A1 > K in the case where the amplitude to the first signal, second signal is weighted
It is whether true, judge whether r2* △ A2 > K are true, and judge r3* △ A3 > K, if set up.
When judging r1* △ A1 > K, it is shared that the first signal S1 carries out the charge between signal, when judge r1* △ A1≤
When K, it is shared that the first signal S1 is not involved in the charge between signal.
When judging r2* △ A2 > K, it is shared that second signal S2 carries out the charge between signal；When judge r2* △ A2≤
When K, it is shared that second signal S2 is not involved in the charge between signal.
When judging r3* △ A3 > K, it is shared that third signal S3 carries out the charge between signal, when judge r3* △ A3≤
When K, it is shared that second signal S3 is not involved in the charge between signal.
Using the above embodiment of the present invention, after acquisition can carry out the shared signal of charge, judgement can carry out charge
Which can carry out the shared signal of charge between signal for signal in shared signal, and it is total that determination can carry out the charge between signal
The signal enjoyed, it is shared to achieve the purpose that carry out charge, the shared efficiency of charge is improved, power consumption has been saved, is reduced
The operating temperature of chip, and then the technical problem that the driving chip overall power that solves display screen in the prior art is big.
According to the above embodiment of the present invention, judging unit includes：First determining module, for can to carry out charge shared
Signal be column signal in the case of, using m column signals as one group, the shared column signal of charge that can carry out in group is carried out
Judge, be more than the signal of threshold value by amplitude of variation, is determined to participate in the column signal that charge is shared between signal.
Wherein, m is integer, m > 1.
Progress is based in the case where it is column signal that can carry out the shared signal of charge using above-described embodiment
Whether the amplitude of variation of the shared signal of charge is more than threshold value between signal, with determine participate in signal between the shared column signal of charge,
Achieve the purpose that carry out charge shared, has improved the shared efficiency of charge, saved power consumption.
According to the above embodiment of the present invention, judging unit includes：Second determining module, for can to carry out charge shared
Signal be column signal in the case of, column signal identical for institute's polarized, judge signal amplitude of variation whether be more than threshold
Value, with the shared column signal of charge between determining participation signal.
Institute's polarized is based in the case where it is column signal that can carry out the shared signal of charge using above-described embodiment
Identical column signal judges that the amplitude of variation of which signal of each column signal of the identical column signal of institute's polarized is more than threshold respectively
Value determines which is that the charge that can be carried out between signal is shared in the identical signal of institute's polarized, has reached and has been total to charge
The purpose enjoyed improves the shared efficiency of charge, has saved power consumption.
According to the above embodiment of the present invention, the second determining module further includes：Second determination sub-module, for for all poles
The identical column signal of property is weighted processing, the column signal after being weighted；Judging the amplitude of variation of the column signal after weighting is
No is more than threshold value.
Using the above embodiment of the present invention, by weighing the weight of unlike signal, important signal is given to a big power
Weight gives unessential signal to a small weight, judges whether the identical column signal of polarity after all weightings is more than threshold value,
Determine which is that the charge that can be carried out between signal is shared in the identical signal of institute's polarized, improves charge to a certain extent
Shared precision.
According to the above embodiment of the present invention, judging unit includes：Third determining module, for can to carry out charge shared
Signal be column signal in the case of, judge the amplitude of variation of signal whether more than threshold the identical part column signal of polarity
Value, with the shared column signal of charge between determining participation signal.
It is identical based on having in the case where it is column signal that can carry out the shared signal of charge using above-described embodiment
Part signal in polar signal is judged that determining the signal with identical polar, which is the electricity that can be carried out between signal
Lotus is shared, has achieved the purpose that carry out charge shared, also, further improves the shared efficiency of charge, has saved power consumption.
According to the above embodiment of the present invention, further include：Driving unit, for for each column signal, column signal will to be driven
H rows when, detect the column signal H-1 row and H rows difference, if it exceeds the threshold, then carry out charge it is average after, then
It is driven；If it does not exceed the threshold, then directly being driven.
Wherein, H > 1, H are integer.
The column signal is detected in H-1 rows and H when driving the H rows of column signal using the above embodiment of the present invention
Capable difference, if it exceeds the threshold, after then carrying out charge averagely, then driven, and then better energy-saving effect is achieved, it saves
About power consumption.
According to the above embodiment of the present invention, acquiring unit further includes：Acquisition module, it is aobvious for being obtained by sensor acquisition
The shared signal of charge can be carried out in display screen；Alternatively, being obtained in display screen by circuit can carry out what charge was shared
Signal.
Using the above embodiment of the present invention, by various acquisition modes, improving to obtain can carry out in display screen
The flexibility of the shared signal of charge.
According to embodiments of the present invention, a kind of embodiment of storage medium is provided, storage medium includes the program of storage,
In, equipment where controlling storage medium when program is run executes the electric charge sharing method of any one of above-described embodiment.
According to embodiments of the present invention, a kind of embodiment of processor is provided, processor is for running program, wherein journey
The electric charge sharing method of any one of above-described embodiment is executed when sort run.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, unit division, can be one kind
Division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of unit or module,
Can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (12)
1. a kind of electric charge sharing method, which is characterized in that including：
The shared signal of charge can be carried out by obtaining in display screen；
Whether the amplitude of variation that the shared signal of charge can be carried out described in judgement is more than threshold value；
It is shared that charge between signal is carried out for the signal that amplitude of variation is more than the threshold value.
2. according to the method described in claim 1, it is characterized in that, being column signal in the shared signal of charge that can carry out
In the case of, can be carried out described in judgement the shared signal of charge amplitude of variation whether more than threshold value include：
Using m column signals as one group, the shared column signal of charge that can carry out in group is judged, is more than by amplitude of variation
The signal of threshold value is determined to participate in the column signal that charge is shared between signal.
3. according to the method described in claim 1, it is characterized in that, being column signal in the shared signal of charge that can carry out
In the case of, can be carried out described in judgement the shared signal of charge amplitude of variation whether more than threshold value include：
Column signal identical for institute's polarized judges whether the amplitude of variation of signal is more than threshold value, between determining participation signal
The shared column signal of charge.
4. according to the method described in claim 3, it is characterized in that, judge signal amplitude of variation whether more than threshold value include：
Processing is weighted for the identical column signal of institute's polarized, the column signal after being weighted；
Judge whether the amplitude of variation of the column signal after the weighting is more than threshold value.
5. according to the method described in claim 1, it is characterized in that, being column signal in the shared signal of charge that can carry out
In the case of, can be carried out described in judgement the shared signal of charge amplitude of variation whether more than threshold value include：
Whether the amplitude of variation of signal, which is more than threshold value, is judged for the identical part column signal of polarity, to determine electricity between participation signal
The shared column signal of lotus.
6. the method according to any one of claims 1 to 5, it is characterized in that, further including：
For each column signal, when by the H rows for driving the column signal, detect the column signal H-1 row and H rows difference
It is different, if it exceeds the threshold, after then carrying out charge averagely, then driven；If it does not exceed the threshold, then directly being driven.
7. the method according to any one of claims 1 to 5, it is characterized in that, electricity can be carried out by obtaining in display screen
The shared signal of lotus further includes：
It acquires to obtain in display screen by sensor and can carry out the shared signal of charge；Alternatively,
The shared signal of charge can be carried out by being obtained in display screen by circuit.
8. a kind of charge sharing means, which is characterized in that including：
Acquiring unit can carry out the shared signal of charge for obtaining in display screen；
Judging unit, for judging whether the amplitude of variation that can carry out the shared signal of charge is more than threshold value；
Shared cell, it is shared for carrying out the charge between signal more than the signal of the threshold value for amplitude of variation.
9. device according to claim 8, which is characterized in that the judging unit includes：
First determining module, for it is described can to carry out the shared signal of charge be column signal in the case of, m column signals are made
It is one group, the shared column signal of charge that can carry out in group is judged, is more than the signal of threshold value by amplitude of variation, determines
The shared column signal of charge between participation signal.
10. device according to claim 8, which is characterized in that the judging unit includes：
Second determining module, for it is described can to carry out the shared signal of charge be column signal in the case of, for all poles
Property identical column signal, judge whether the amplitude of variation of signal is more than threshold value, with determine participate in signal between the shared row of charge believe
Number.
11. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require electric charge sharing method described in any one of 1 to 7.
12. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Profit requires the electric charge sharing method described in any one of 1 to 7.
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| CN108198538B (en) * | 2018-01-05 | 2021-01-26 | 京东方科技集团股份有限公司 | Display device, driving method thereof, driving device and display substrate |
| CN109410821B (en) * | 2018-12-19 | 2022-02-18 | 合肥奕斯伟集成电路有限公司 | Display device and automatic charge sharing judgment method thereof |
| CN112669781B (en) * | 2020-12-14 | 2022-04-12 | 北京奕斯伟计算技术有限公司 | Display processing method, display processing device and display panel |
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| KR101201127B1 (en) * | 2005-06-28 | 2012-11-13 | 엘지디스플레이 주식회사 | Liquid Crystal Display and Driving Method thereof |
| CN100514404C (en) * | 2006-03-13 | 2009-07-15 | 中华映管股份有限公司 | Electric charge sharing apparatus for display panel |
| JP5363895B2 (en) * | 2009-07-23 | 2013-12-11 | ルネサスエレクトロニクス株式会社 | Signal line driving circuit and liquid crystal display device |
| CN202650503U (en) * | 2012-07-23 | 2013-01-02 | 京东方科技集团股份有限公司 | Pixel drive circuit and display device |
| KR102009647B1 (en) * | 2012-09-13 | 2019-10-21 | 엘지디스플레이 주식회사 | Liquid Crystal Display Device and Driving Method For The Same |
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