CN109345997A - Display driving method, display drive apparatus and display device - Google Patents
Display driving method, display drive apparatus and display device Download PDFInfo
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- CN109345997A CN109345997A CN201811522750.XA CN201811522750A CN109345997A CN 109345997 A CN109345997 A CN 109345997A CN 201811522750 A CN201811522750 A CN 201811522750A CN 109345997 A CN109345997 A CN 109345997A
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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
- G09G3/2003—Display of colours
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The application discloses a kind of display driving method, display drive apparatus and display device, wherein display driving method is the following steps are included: obtain the original display parameter before adjacent two frames processing and treated amendment display parameters；Compare the absolute value of the difference and the first preset threshold of the original display parameter of adjacent two frame on same position；When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold, the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position are compared；When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second preset threshold, color adjustment coefficient is modified to reduce the variation of the amendment relatively primitive display parameters of display parameters of same frame on same position.Technical scheme can improve the display effect of tableaux.
Description
Technical field
This application involves field of display technology, in particular to a kind of display driving method, display drive apparatus and display dress
It sets.
Background technique
In a display device, in order to improve display effect, it will usually original aobvious by what is directly received from display source signal
Show that signal carries out certain processing, such as optimizes color, gamma-debugged, reduction shake, and resulting amendment is aobvious after handling
Show that the relatively primitive display signal of signal often has having a greater change.It particularly, is tableaux shown by the display device
When, due to the difference of above-mentioned treatment process, it may cause the amendment display parameters difference of adjacent two frame in amendment display signal very
Greatly, the situation of indifference or difference very little is not inconsistent between the original display parameter of two frame adjacent in original display signal, reflection
On final display picture, the shake of tableaux is shown as, display effect is caused to be deteriorated.
Summary of the invention
The main purpose of the application is to propose a kind of display driving method, display drive apparatus and display device, it is intended to be solved
The jitter problem of certainly above-mentioned tableaux improves display effect.
To achieve the above object, the display driving method that the application proposes, comprising the following steps:
Original display parameter before obtaining the processing of adjacent two frame and treated amendment display parameters；
Compare the absolute value of the difference and the first preset threshold of the original display parameter of adjacent two frame on same position；
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold
When, compare the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position；
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second preset threshold, modification
Color adjustment coefficient is to reduce the variations of the amendment relatively primitive display parameters of display parameters of same frame on same position.
Optionally, compare same position on adjacent two frame original display parameter absolute value of the difference and the first default threshold
After the step of value, the display driving method is further comprising the steps of:
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is greater than the first preset threshold, keep
The color adjustment coefficient is constant or the modification color adjustment coefficient is joined with the amendment display for increasing same frame on same position
The variation of the relatively primitive display parameters of number；Or,
The step of the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on comparing corresponding position
After rapid, the display driving method is further comprising the steps of:
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is less than or equal to the second preset threshold
When, it keeps the color adjustment coefficient constant or modifies the color adjustment coefficient to increase the amendment of same frame on same position
The variation of the relatively primitive display parameters of display parameters.
Optionally, first preset threshold is less than or equal to second preset threshold.
Optionally, the step of original display parameter before obtaining the processing of adjacent two frame and treated amendment display parameters, wraps
It includes:
It receives through preliminary colors countenance and according to the original display signal of preset protocol coded transmission；
The display signal received is decoded according to the preset protocol；
Colors countenance, gamma processing and dithering process again are carried out to decoded display signal, obtain amendment display letter
Number；
According to original display signal and amendment display signal, original display parameter and processing before obtaining adjacent two frames processing
Amendment display parameters afterwards.
Optionally, compare same position on adjacent two frame original display parameter absolute value of the difference and the first default threshold
After the step of value, the display driving method is further comprising the steps of:
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold
When, compare the absolute value of the difference and third predetermined threshold value of the amendment display parameters of adjacent two frame on corresponding position；
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than third predetermined threshold value, modification
The amendment display parameters of present frame are the amendment display parameters of former frame.
To achieve the above object, the application also proposes that a kind of display drive apparatus, the display drive apparatus include first
Data control element, the first data control element are arranged to carry out following operation: original before obtaining adjacent two frames processing
Display parameters and treated amendment display parameters；The difference of the original display parameter of adjacent two frame is absolute on comparison same position
Value and the first preset threshold；When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to first
When preset threshold, the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position are compared；When
When the absolute value of the difference of the amendment display parameters of adjacent two frame is greater than the second preset threshold on corresponding position, color adjustment system is modified
It counts to reduce the variation of the amendment relatively primitive display parameters of display parameters of same frame on same position.
Optionally, the display drive apparatus includes system on chip plate and timing control plate, the first data control member
Part is set on the system on chip plate, and the first data control element is connected with display source signal；The timing control plate
It is connected with the system on chip plate.
Optionally, the system on chip plate includes the first colors countenance element, encoder element and the first frame buffer zone, described
First colors countenance element is connected with the first data control element, the first colors countenance element be set as to received from
The original display signal of the first data control element carries out preliminary colors countenance according to the color adjustment coefficient；The volume
Symbol part is connected with the first colors countenance element, and the encoder element is set as to the display signal through preliminary colors countenance
It is encoded according to preset protocol；First frame buffer zone and the display source signal, the first data control element and described
First colors countenance element is connected, and the first frame setting buffers are the original display parameter and amendment display for storing former frame
Parameter.
Optionally, the timing control plate includes decoding element, the second colors countenance element, gamma element, dithering process
Element and the second data control element, the decoding element are connected with the system on chip plate, and the decoding element is set as pair
Display signal received from system on chip plate is decoded according to preset protocol；The second colors countenance element and the decoding element
It is connected, the second colors countenance element is set as carrying out colors countenance again to decoded display signal；The gamma member
Part is connected with the second colors countenance element, and the gamma element is set as carrying out the display signal through colors countenance again
Gamma processing；The dithering process element is connected with the gamma element, and the dithering process element is set as at through gamma
The display signal of reason carries out dithering process, generates the amendment display parameters of present frame；The second data control element with it is described
Dithering process element is connected with the system on chip plate, and the second data control element is set as will be at received from the shake
The amendment display parameters for managing the present frame of element are transmitted to the system on chip plate.
To achieve the above object, the application is it is further proposed that a kind of display device, the display device include display panel
And display drive apparatus, the display drive apparatus include the first data control element, the first data control element is set
It is set to and executes following operation: original display parameter before obtaining adjacent two frames processing and treated amendment display parameters；It compares
The absolute value of the difference and the first preset threshold of the original display parameter of adjacent two frame on same position；When on same position adjacent two
When the absolute value of the difference of the original display parameter of frame is less than or equal to the first preset threshold, adjacent two frame on corresponding position is compared
Correct the absolute value of the difference and the second preset threshold of display parameters；When the difference of the amendment display parameters of two frame adjacent on corresponding position
Absolute value be greater than the second preset threshold when, modify color adjustment coefficient with reduce same frame on same position amendment display ginseng
The variation of the relatively primitive display parameters of number, the display drive apparatus are connected with the display panel, the display drive apparatus
It is set as driving the display of the display panel.
In technical scheme, display driving method is the following steps are included: original aobvious before obtaining adjacent two frames processing
Show parameter and treated amendment display parameters；Compare the absolute value of the difference of the original display parameter of adjacent two frame on same position
With the first preset threshold；When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to first in advance
If when threshold value, comparing the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position；When right
When the absolute value of the difference of the amendment display parameters of adjacent two frame on position being answered to be greater than the second preset threshold, color adjustment coefficient is modified
To reduce the variation of the amendment relatively primitive display parameters of display parameters of same frame on same position.By comparing on same position
The absolute value of the difference and the first preset threshold of the original display parameter of adjacent two frame judge whether the picture shown at this time is static
Picture is shown at this time when the absolute value of the difference of the original display parameter of adjacent two frame is less than or equal to the first preset threshold
Picture is tableaux, further by comparing the absolute value of the difference and the of the amendment display parameters of adjacent two frame on corresponding position
Two preset thresholds, judge to correct display parameters with the presence or absence of biggish variation, when the difference of the amendment display parameters of adjacent two frame
When absolute value is greater than the second preset threshold, show that the amendment display parameters corresponding to tableaux change greatly, and may cause picture
The shake in face modifies color adjustment coefficient at this time to reduce the relatively primitive display of amendment display parameters of same frame on same position
The variation of parameter is consistent with original display signal to guarantee that the picture finally shown is also static state, avoids trembling for picture
It is dynamic, improve display effect.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of display drive apparatus in an example；
Fig. 2 is the flow diagram of one embodiment of the application display driving method；
Fig. 3 is the structural schematic diagram of one embodiment of the application display drive apparatus；
Fig. 4 is the structural schematic diagram of one embodiment of the application display device.
The embodiments will be further described with reference to the accompanying drawings for realization, functional characteristics and the advantage of the application purpose.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall in the protection scope of this application.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present application,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present application
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not this application claims protection scope within.In addition, the meaning of the "and/or" occurred in full text is, including
Three schemes arranged side by side, by taking " A and/or B " as an example, including the scheme that A scheme or B scheme or A and B meet simultaneously.In addition, each
Technical solution between a embodiment can be combined with each other, but must can be implemented as base with those of ordinary skill in the art
Plinth will be understood that the combination of this technical solution is not present when conflicting or cannot achieve when occurs in the combination of technical solution,
Also not this application claims protection scope within.
In an example, the structure of display drive apparatus is as shown in Figure 1, include system on chip plate (SOC) 100 ' and timing
Control panel (TCON) 200 ', wherein arrow represents the circulation direction of display signal.In the operational process of display drive apparatus,
SOC100 ' receives the original display signal from display source signal, and original display signal is through 110 ' place of the first colors countenance element
Reason, encodes in encoder element 120 ' according to preset protocol, to facilitate transmission.It can store a frame in first frame buffer zone 130 '
Original display parameter and through the first colors countenance element 110 ' treated display parameters, to call.SOC100 ' and
The transmission of signal is carried out between TCON200 ' according to preset protocol.Decoding element 210 ' in TCON200 ' receives display signal
Afterwards, it is decoded according to preset protocol, to restore display signal.Further, display signal passes through the second colors countenance element 220 '
Colors countenance, the gamma correction of gamma element 230 ' and the dithering process of dithering process element 240 ', generate amendment display letter
Number.Amendment display signal exports after reinforcing further across the driving of driving element 250 ', to drive the display of picture.And
The second frame buffer zone 260 ' in TCON200 ' can store the amendment display parameters of a frame, to call.As it can be seen that original display
When signal is treated as amendment display signal, very big variation is tended to occur, may cause the shake of tableaux.
The application proposes a kind of display driving method, according to the variation of the amendment display parameters of two frame adjacent in tableaux
Situation, modification handle color adjustment coefficient involved in display parameters process, to avoid the flashing of tableaux, improve display effect
Fruit.
In the embodiment of the application, as shown in Fig. 2, the display driving method the following steps are included:
Step S100, original display parameter before obtaining the processing of adjacent two frame and treated amendment display parameters；
Wherein, original display parameter is obtained according to the original display signal directly from display source signal, and amendment is aobvious
Show that amendment display signal obtains parameter according to treated.In order to save spatial cache, can only keep in present frame and
The original display parameter and amendment display parameters of the entire display picture of former frame, and as the progress of display constantly covers update
The original display parameter and amendment display parameters of caching.
Step S200, the absolute value of the difference and the first default threshold of the original display parameter of adjacent two frame on same position are compared
Value；
By determining that the situation of change of the original display parameter of adjacent two frame on same position judges that shown picture is
No is tableaux.Specifically, the absolute of the difference of the original display parameter in adjacent two frame on each position can be respectively compared
Value and the first preset threshold, to ensure the accuracy of judgement；Or from display picture in select certain amount exemplary position or
Person's random site is compared, and to simplify comparison process, improves treatment effeciency.
Step S310, when the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to first
When preset threshold, the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position are compared；
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold
When, specifically, the absolute value of the difference that can be all original display parameters compared is respectively less than or is equal to the first preset threshold；
Or consider fluctuation that may be present, the absolute value of the difference for being also possible to the original display parameter of certain amount or more be less than or
When equal to the first preset threshold, that is, think that picture at this time is tableaux.It should be noted that tableaux here is different
Surely it is stringent constant, but the picture varied less can be also referred in tableaux.When showing tableaux, into
One step compares the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position, to judge to original
Whether the treatment process of beginning display signal expands the difference of the display parameters of adjacent two frame.Wherein, corresponding position can with sentence
Selected position is completely the same when the situation of change of disconnected original display parameter, can also be inconsistent, but should be noted that phase
The amendment display parameters of adjacent two frames must on same position, be just comparable.It is also possible to repairing on each position
Positive display parameters are compared, and the exemplary position or random site that also can choose certain amount are compared.
Step S410, when the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second default threshold
When value, color adjustment coefficient is modified to reduce the change of the amendment relatively primitive display parameters of display parameters of same frame on same position
Change.
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second preset threshold, show
In the case of original display parameter is constant at any time or variation is little, biggish change is had occurred in amendment display parameters at any time
Change, therefore, in order to avoid the shake of picture, modification handles color adjustment coefficient involved in original display signal process, with
The variation for reducing the amendment relatively primitive display parameters of display parameters of same frame on same position, to work as the original of adjacent two frame
When display parameters are constant or variation is little, it is corresponding correct that display parameters are also constant or variation less, to avoid the shake of picture,
Improve display effect.Wherein, color adjustment may include the preliminary color adjustment carried out in SOC and/or carry out in TCON
Color adjustment again, correspondingly, color adjustment coefficient and/or the color involved in TCON involved in SOC can be modified
Adjustment factor.Color adjustment coefficient can there are two or it is more than two, when the amendment display parameters of two frame adjacent on corresponding position
Absolute value of the difference be greater than the second preset threshold when, color adjustment coefficient can be modified, gradually to be gradually reduced on same position
Difference between the original display parameter and amendment display parameters of same frame, to be reduced while ensureing colors countenance effect
The flashing of tableaux.Although the picture that the modification of color adjustment coefficient is difficult to influence present frame is shown, and can only be influenced
The picture of respective frame is shown below, it is contemplated that the time of each frame is very short, human eye is difficult to the picture in a frame duration
Flashing, therefore the technical solution of the present embodiment still has the effect of improving tableaux flashing well.
In a specific example, amendment is shown the original display parameter before the adjacent two frame processing got with treated
Parameter, the second preset threshold and the conclusion for whether carrying out color adjustment coefficient modifying are as shown in the table (assuming that maximum gray value
It is 255, original display parameter, correct display parameters, the first preset threshold and the second preset threshold is indicated by grayscale value, first
4) preset threshold is set as:
That is, comparing and corresponding to when the absolute value of the difference of original display parameter is less than or equal to the first preset threshold 4
(the first row is to fifth line in table as above for the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on position
Data), otherwise, (the 6th row data in table as above) are not modified to color adjustment coefficient.Wherein, the second preset threshold according to
The absolute value of the difference of original display parameter is arranged, in general, the increase of the absolute value of the difference with original display parameter, second is default
Threshold value increases.If the absolute value of the difference for correcting display parameters is greater than the second preset threshold, color adjustment coefficient (table as above is modified
In the second row, fourth line and fifth line data), otherwise, do not modify color adjustment coefficient (the first row and third line number in table as above
According to).
In one embodiment, color adjustment coefficient and its value are as shown in following colors countenance weight table:
In this example, color adjustment coefficient has five grades, the display parameters m before colors countenance and showing after colors countenance
Show that parameter n meets n=Gaini*m, wherein i=1,2,3,4 or 5.With the increase of the value of color adjustment coefficient, before processing
Original display parameter and treated amendment display parameters between difference will increase.In the process of modification color adjustment coefficient
In, it is preferential to select color adjustment coefficient modifying in order to reduce the effect for ensureing colors countenance while tableaux flashing
Color adjustment system is further decreased if the value is not able to satisfy the requirement for reducing tableaux flashing still to neighbouring value
Number.For example, original color adjustment factor is Gain1=5, need to modify color adjustment coefficient if detecting to avoid flashing, head
It is first Gain2=4 by color adjustment coefficient modifying, if modified color adjustment coefficient, which has been able to meet, reduces film flicker
Requirement, then no longer modify, be further Gain3=3 by color adjustment coefficient modifying, and the rest may be inferred otherwise.
In this example it is shown that driving method is the following steps are included: obtain the original display ginseng before adjacent two frames processing
Number and treated amendment display parameters；Compare the absolute value of the difference of the original display parameter of adjacent two frame and the on same position
One preset threshold；When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first default threshold
When value, the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position are compared；When corresponding position
When setting the absolute value of the difference of the amendment display parameters of adjacent two frame greater than the second preset threshold, color adjustment coefficient is modified to subtract
The variation of the amendment relatively primitive display parameters of display parameters of same frame on small same position.It is adjacent on same position by comparing
The absolute value of the difference and the first preset threshold of the original display parameter of two frames judge whether the picture shown at this time is static picture
Face shows picture when the absolute value of the difference of the original display parameter of adjacent two frame is less than or equal to the first preset threshold at this time
Face is tableaux, further passes through the absolute value of the difference and second of the amendment display parameters of adjacent two frame on comparison corresponding position
Preset threshold, judges to correct display parameters with the presence or absence of biggish variation, when the amendment display parameters of adjacent two frame difference it is exhausted
When being greater than the second preset threshold to value, show that the amendment display parameters corresponding to tableaux change greatly, and may cause picture
Shake, modify color adjustment coefficient at this time and joined with the relatively primitive display of the amendment display parameters for reducing same frame on same position
Several variations is consistent with original display signal to guarantee that the picture finally shown is also static state, avoids the shake of picture,
Improve display effect.
In one embodiment, after step S200, display driving method is further comprising the steps of:
Step S320, when the absolute value of the difference of the original display parameter of two frame adjacent on same position is greater than the first default threshold
When value, keeps color adjustment coefficient constant or modification color adjustment coefficient is joined with the amendment display for increasing same frame on same position
The variation of the relatively primitive display parameters of number.
That is, when there are when biggish variation, can not have to consider to reduce in tableaux to tremble for display picture itself
Dynamic problem, that is, do not have to the variation for the amendment display parameters for further comparing adjacent two frame on corresponding position, and directly keeps working as
Preceding color adjustment coefficient.Alternatively, may be sacrificed in view of when modifying color adjustment coefficient before to reduce flashing
The color of some display pictures, it is aobvious to increase the amendment of same frame on same position to modify color adjustment coefficient herein
Show the variation of the relatively primitive display parameters of parameter, so as to improve the color of display picture.Specifically, can be by color adjustment coefficient
Initial value or maximum value are increased to, the width of modification needed for color adjustment coefficient can also being calculated according to coloration of display picture etc.
Degree.Certainly, in comparison process, the variation of the original display parameter of adjacent two frame on each position can be compared respectively, it can also
To select exemplary position or the random site of certain amount to be compared, to simplify comparison procedure, treatment effeciency is improved.
Alternatively, when showing picture is tableaux, the amendment display parameters of adjacent two frame on comparing corresponding position
After the step of absolute value of the difference and the second preset threshold, display driving method is further comprising the steps of:
Step S420, when the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is less than or equal to second
When preset threshold, keeps color adjustment coefficient constant or modify color adjustment coefficient to increase the amendment of same frame on same position
The variation of the relatively primitive display parameters of display parameters.
That is, although display picture is tableaux, if adjacent on the corresponding position obtained after treatment
The variation of the amendment display parameters of two frames is little, then can also be directly with current color adjustment coefficient processing display parameters.
Alternatively, suitably modified color adjustment coefficient is to increase the relatively primitive display parameters of amendment display parameters of same frame on same position
Variation, so as to improve display picture color.Similarly, the amendment display parameters on each corresponding position can be compared, it can also
To select exemplary position or the random site of certain amount to be compared.
In the above-described embodiments, the first preset threshold is less than or equal to the second preset threshold.It, can for tableaux
To give amendment display parameters certain redundancy, to ensure the treatment effect to original display parameter.Certainly, in order to effectively keep away
Exempt to flash, it should be noted that the second preset threshold can not be arranged too much.
In one embodiment, step S100 includes:
Step S110, it receives through preliminary colors countenance and according to the original display signal of preset protocol coded transmission；
Wherein, preliminary colors countenance and be usually to realize in SOC according to the coding of preset protocol, SOC and display are believed
Number source is connected directly.Preliminary colors countenance can improve the color of display picture, and be for convenience according to preset protocol coding
Display signal is transmitted in TCON from SOC.
Step S120, the display signal received is decoded according to preset protocol；
When TCON is received after preliminary colors countenance and according to the original display signal of preset protocol coded transmission, press
It is decoded according to preset protocol to realize the reduction to display signal.
Step S130, colors countenance, gamma processing and dithering process again are carried out to decoded display signal, is repaired
Positive display signal；
By carrying out colors countenance again to decoded display signal, to improve colour vividness etc., improve display effect
Fruit.The effect of further progress gamma processing is to compensate the nonlinear characteristic of display device, realizes undistorted display.And it shakes
The display of more grayscale may be implemented in processing, so that the transition of display picture is more smooth.By above-mentioned colors countenance again, gal
After horse processing and dithering process, amendment display signal is obtained.
Step S140, the original display according to original display signal and amendment display signal, before obtaining adjacent two frames processing
Parameter and treated amendment display parameters.
What original display signal and amendment display signal reflected is the display parameters changed over time, therefore, according to original
Show signal and amendment display signal, original display parameter before available adjacent two frame processing and treated amendment display
Parameter, to further handle.
In one embodiment, after step S200, display driving method is further comprising the steps of:
Step S330, when the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to first
When preset threshold, the absolute value of the difference and third predetermined threshold value of the amendment display parameters of adjacent two frame on corresponding position are compared；
Step S430, threshold is preset when the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than third
When value, the amendment display parameters for modifying present frame are the amendment display parameters of former frame.
In the present embodiment, it is contemplated that the modification of color adjustment coefficient has the delay of an at least frame duration, in order to more preferable
Ground reduces the flashing of display picture, if detecting, the absolute value of the difference of the amendment display parameters of adjacent two frame on corresponding position is greater than
When third predetermined threshold value, the amendment display parameters for modifying present frame are the amendment display parameters of former frame, to realize to current
The amendment of the film flicker of frame.Wherein, determining size relation is had no between third predetermined threshold value and the second preset threshold, still
Particularly, third predetermined threshold value can be set greater than the second preset threshold, that is to say, that only when two frame adjacent in tableaux
The absolute value of the difference of amendment display parameters when changing greatly, the amendment of present frame is just replaced with the amendment display parameters of former frame
On the one hand display parameters improve the effect for reducing film flicker, on the other hand can also require to modify to avoid each amendment
It corrects display parameters and causes display driving method excessively complicated, to economize on resources.
It in the above embodiments, can also be further right after obtaining the final amendment display parameters of present frame
Amendment display parameters carry out processing of overdriving, and to accelerate the response speed of liquid crystal in liquid crystal display device, realize that driving is reinforced, change
Kind display effect.
As shown in figure 3, the application also proposes that a kind of display drive apparatus, display drive apparatus include the first data control member
Part 110, the first data control element 110 are arranged to carry out following operation:
Original display parameter before obtaining the processing of adjacent two frame and treated amendment display parameters；
Compare the absolute value of the difference and the first preset threshold of the original display parameter of adjacent two frame on same position；
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold
When, compare the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on corresponding position；
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second preset threshold, modification
Color adjustment coefficient is to reduce the variations of the amendment relatively primitive display parameters of display parameters of same frame on same position.
Wherein, the first data control element 210 can be a microprocessor, to execute the operation such as above-mentioned operation and modification.
Wherein, original display parameter is obtained according to the original display signal directly from display source signal, and amendment display parameters are
According to treated, amendment shows what signal obtained.In order to save spatial cache, present frame and former frame can be only kept in
The original display parameter and amendment display parameters of entire display picture, and as the progress of display constantly covering updates the original of caching
Beginning display parameters and amendment display parameters.By determining that the situation of change of the original display parameter of adjacent two frame on same position is sentenced
Whether the shown picture that breaks is tableaux.Specifically, can be respectively compared in adjacent two frame original aobvious on each position
Show the absolute value of the difference and the first preset threshold of parameter, to ensure the accuracy of judgement；Or it is selected from display picture certain
The exemplary position or random site of number are compared, and to simplify comparison process, improve treatment effeciency.When phase on same position
When the absolute value of the difference of the original display parameter of adjacent two frames is less than or equal to the first preset threshold, specifically, can be all quilts
The absolute value of the difference of the original display parameter compared is respectively less than or is equal to the first preset threshold；Or consider wave that may be present
It is dynamic, when being also possible to the absolute value of the difference of the original display parameter of certain amount or more less than or equal to the first preset threshold, i.e.,
Think that picture at this time is tableaux.It should be noted that tableaux here be not necessarily it is stringent constant, but can
The picture varied less to be also referred in tableaux.When showing tableaux, phase on corresponding position is further compared
The absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frames, to judge the treatment process to original display signal
Whether the difference of the display parameters of adjacent two frame is expanded.Wherein, corresponding position can be with the variation that judges original display parameter
Selected position is completely the same when situation, can also be inconsistent, but should be noted that the amendment display parameters of adjacent two frame
Must on same position, just be comparable.It is also possible to compare the amendment display parameters on each position
Right, the exemplary position or random site that also can choose certain amount are compared.When adjacent two frame is repaired on corresponding position
When the absolute value of the difference of positive display parameters is greater than the second preset threshold, show original display parameter is constant at any time or variation
In the case of less, biggish variation is had occurred in amendment display parameters at any time, therefore, in order to avoid the shake of picture, modification
Color adjustment coefficient involved in original display signal process is handled, to reduce the amendment display ginseng of same frame on same position
The variation of the relatively primitive display parameters of number, thus when the original display parameter constant of adjacent two frame or little variation, accordingly
Amendment display parameters are also constant or variation is little, to avoid the shake of picture, improve display effect.Wherein, color adjustment can be with
Including the preliminary color adjustment carried out in SOC and/or the color adjustment again carried out in TCON, correspondingly, can modify
Color adjustment coefficient involved in SOC and/or the color adjustment coefficient involved in TCON.Color adjustment coefficient can there are two
Or it is more than two, when the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second preset threshold,
Color adjustment coefficient can be modified, gradually to be gradually reduced the original display parameter and amendment display ginseng of same frame on same position
Difference between number, to reduce the flashing of tableaux while ensureing colors countenance effect.Although color adjustment coefficient
Modification be difficult to influence the picture of present frame and show, and the picture that can only influence respective frame below is shown, it is contemplated that
The time of each frame is very short, and human eye is difficult to the film flicker in a frame duration, therefore the technical solution of the present embodiment is still
Have the effect of improving tableaux flashing well.
In one embodiment, as shown in figure 3, display drive apparatus includes SOC100 and TCON200, the first data control member
Part 110 is set on SOC100, and the first data control element 110 is connected with display source signal；TCON200 is connected with SOC100,
Wherein, arrow indicates the circulation direction of display signal.By being improved to SOC100 and TCON200, make SOC100 and
TCON200 cooperation processing is ensureing the flashing that tableaux is reduced while showing color, so as to improve display effect.
Specifically, SOC100 includes the first colors countenance element 120, encoder element 130 and the first frame buffer zone 140.The
One color processing element 120 is connected with the first data control element 110, the first colors countenance element 120 be set as to received from
The original display signal of first data control element 110 carries out preliminary colors countenance, wherein the process of preliminary colors countenance can join
The progress of colors countenance weight table is examined, to improve the color of display picture.Encoder element 130 and 120 phase of the first colors countenance element
Even, encoder element 130 is set as encoding the signal through preliminary colors countenance according to preset protocol, and the biography of signal is shown with aspect
It is defeated.First frame buffer zone 140 and display source signal, the first data control element 110 are connected with the first colors countenance element 120,
First frame buffer zone 140 is set as the original display parameter and amendment display parameters of storage former frame, so as to subsequent comparison.
TCON200 includes decoding element 210, the second colors countenance element 220, gamma element 230, dithering process element
240 and the second data control element 250.Decoding element 210 be connected with SOC100, decode element 210 be set as to received from
The display signal of SOC100 is decoded according to preset protocol.When TCON200 is received through preliminary colors countenance and according to preset protocol
After the original display signal of coded transmission, it is decoded according to preset protocol to realize the reduction to display signal.Second color
Color processing element 220 with decoding element 210 be connected, the second colors countenance element 220 be set as to decoded display signal into
Capable colors countenance again.By carrying out colors countenance again to decoded display signal, to improve colour vividness etc., improve
Display effect.Here colors countenance can also be carried out with reference to color disposal right weight table, certainly, in order to simplify colors countenance mistake
Journey can also only modify color adjustment coefficient in SOC100, no longer be adjusted here.Or color is only modified herein
Adjustment factor, and not adjusted in SOC100.Gamma element 230 is connected with the second colors countenance element 220, gamma element
230 are set as carrying out gamma processing to the display signal through colors countenance again, and the effect for carrying out gamma processing is compensation display
The nonlinear characteristic of device realizes undistorted display.Dithering process element 240 is connected with gamma element 230, dithering process member
Part 240 is set as carrying out dithering process to the display signal that handles through gamma, generates the amendment display parameters of present frame, at shake
The display of more grayscale may be implemented in reason, so that the transition of display picture is more smooth.Second data control element 250 and shake
Processing element 240 is connected with SOC100, and the second data control element 250 was set as working as received from dithering process element 240
The amendment display parameters of previous frame are transmitted to SOC100, which can be according to Serial Peripheral Interface (SPI) (SPI) protocol realization.Specifically
, the amendment display parameters of present frame are transmitted to the first colors countenance element 120 or the first number by the second data control element 250
According in control element 110, so that the modification for color adjustment coefficient provides reference.Certainly, also can be set in TCON200
Two frame buffer zones 260, to store the original display parameter and/or amendment display parameters of a frame.
In the above embodiments, drive further can also be carried out to amendment display parameters by element 270 of overdriving
Dynamic processing realizes that driving is reinforced, improves display effect to accelerate the response speed of liquid crystal in liquid crystal display device.
As shown in figure 4, the application also proposes that a kind of display device, display device include display panel 300；And display is driven
Dynamic device, display drive apparatus are connected with display panel 300, and display drive apparatus is set as the display of driving display panel.It should
The specific structure of display drive apparatus is referring to above-described embodiment, since this display device uses the whole of above-mentioned all embodiments
Technical solution, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, no longer go to live in the household of one's in-laws on getting married one by one herein
It states.Specifically, the display panel can be liquid crystal display panel etc..Wherein, SOC100, which can be set, shows signal in TV etc.
On the mainboard in source.
The above is only the alternative embodiments of the application, are not intended to limit the scope of the patents of the application, all in the application
Inventive concept under, using equivalent structure transformation made by present specification and accompanying drawing content, or directly/be used in it indirectly
He is included in the scope of patent protection of the application relevant technical field.
Claims (10)
1. a kind of display driving method, which is characterized in that the display driving method the following steps are included:
Original display parameter before obtaining the processing of adjacent two frame and treated amendment display parameters；
Compare the absolute value of the difference and the first preset threshold of the original display parameter of adjacent two frame on same position；
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold, than
To the absolute value of the difference and the second preset threshold of the amendment display parameters of two frame adjacent on corresponding position；
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second preset threshold, color is modified
Adjustment factor is to reduce the variations of the amendment relatively primitive display parameters of display parameters of same frame on same position.
2. display driving method as described in claim 1, which is characterized in that adjacent two frame on the comparison same position
After the step of absolute value of the difference and the first preset threshold of original display parameter, the display driving method further includes following step
It is rapid:
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is greater than the first preset threshold, described in holding
Color adjustment coefficient is constant or modifies the color adjustment coefficient to increase the amendment display parameters phase of same frame on same position
Variation to original display parameter；Or,
The step of the absolute value of the difference and the second preset threshold of the amendment display parameters of adjacent two frame on the comparison corresponding position
After rapid, the display driving method is further comprising the steps of:
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is less than or equal to the second preset threshold, protect
Hold that the color adjustment coefficient is constant or the modification color adjustment coefficient is shown with the amendment for increasing same frame on same position
The variation of the relatively primitive display parameters of parameter.
3. display driving method as claimed in claim 1 or 2, which is characterized in that first preset threshold is less than or equal to
Second preset threshold.
4. display driving method as claimed in claim 1 or 2, which is characterized in that original aobvious before obtaining adjacent two frames processing
Show parameter and treated amendment display parameters the step of include:
It receives through preliminary colors countenance and according to the original display signal of preset protocol coded transmission；
The display signal received is decoded according to the preset protocol；
Colors countenance, gamma processing and dithering process again are carried out to decoded display signal, obtain amendment display signal；
Show signal according to the original display signal and the amendment, original display parameter before obtaining adjacent two frames processing and
Treated corrects display parameters.
5. display driving method as claimed in claim 1 or 2, which is characterized in that adjacent two frame on comparing same position
After the step of absolute value of the difference and the first preset threshold of original display parameter, the display driving method further includes following step
It is rapid:
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold, than
To the absolute value of the difference and third predetermined threshold value of the amendment display parameters of two frame adjacent on corresponding position；
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than third predetermined threshold value, modification is current
The amendment display parameters of frame are the amendment display parameters of former frame.
6. a kind of display drive apparatus, which is characterized in that the display drive apparatus includes the first data control element, and described the
One data control element is arranged to carry out following operation:
Original display parameter before obtaining the processing of adjacent two frame and treated amendment display parameters；
Compare the absolute value of the difference and the first preset threshold of the original display parameter of adjacent two frame on same position；
When the absolute value of the difference of the original display parameter of two frame adjacent on same position is less than or equal to the first preset threshold, than
To the absolute value of the difference and the second preset threshold of the amendment display parameters of two frame adjacent on corresponding position；
When the absolute value of the difference of the amendment display parameters of two frame adjacent on corresponding position is greater than the second preset threshold, color is modified
Adjustment factor is to reduce the variations of the amendment relatively primitive display parameters of display parameters of same frame on same position.
7. display drive apparatus as claimed in claim 6, which is characterized in that the display drive apparatus includes:
System on chip plate, the first data control element are set on the system on chip plate, and first data control member
Part is connected with display source signal；And
Timing control plate, the timing control plate are connected with the system on chip plate.
8. display drive apparatus as claimed in claim 7, which is characterized in that the system on chip plate includes:
First colors countenance element, the first colors countenance element are connected with the first data control element, and described first
Colors countenance element is set as to the original display signal received from the first data control element according to the color adjustment
Coefficient carries out preliminary colors countenance；
Encoder element, the encoder element are connected with the first colors countenance element, and the encoder element is set as to through just
The display signal of step colors countenance is encoded according to preset protocol；And
First frame buffer zone, first frame buffer zone and the display source signal, the first data control element and described
First colors countenance element is connected, and the first frame setting buffers are the original display parameter and amendment display for storing former frame
Parameter.
9. display drive apparatus as claimed in claim 7, which is characterized in that the timing control plate includes:
Element is decoded, the decoding element is connected with the system on chip plate, and the decoding element is set as to received from described
The display signal of system on chip plate is decoded according to preset protocol；
Second colors countenance element, the second colors countenance element are connected with the decoding element, second colors countenance
Element is set as carrying out colors countenance again to decoded display signal；
Gamma element, the gamma element are connected with the second colors countenance element, and the gamma element is set as to through again
The display signal of secondary colors countenance carries out gamma processing；
Dithering process element, the dithering process element are connected with the gamma element, and the dithering process element is set as pair
Display signal through gamma processing carries out dithering process, generates the amendment display parameters of present frame；And
Second data control element, the second data control element and the dithering process element and the system on chip plate phase
Even, the second data control element is set as passing the amendment display parameters of the present frame received from the dithering process element
Transport to the system on chip plate.
10. a kind of display device, which is characterized in that the display device includes:
Display panel；And
Display drive apparatus as described in any one of claim 6 to 9, the display drive apparatus and the display panel phase
Even, the display drive apparatus is set as driving the display of the display panel.
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