CN102054445B - System and method for modulating turnover rate of adaptive frame - Google Patents
System and method for modulating turnover rate of adaptive frame Download PDFInfo
- Publication number
- CN102054445B CN102054445B CN200910209929A CN200910209929A CN102054445B CN 102054445 B CN102054445 B CN 102054445B CN 200910209929 A CN200910209929 A CN 200910209929A CN 200910209929 A CN200910209929 A CN 200910209929A CN 102054445 B CN102054445 B CN 102054445B
- Authority
- CN
- China
- Prior art keywords
- picture
- those
- block
- update rate
- pictures
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention provides a system and method for modulating the turnover rate of an adaptive frame. A frame processing unit is used for receiving a first frame and a second frame in sequence, wherein the frame processing unit divides the second frame into a plurality of second block frames; a frame change detecting unit is used for detecting the change state between the first and second frames by comparing a first block frame with the corresponding second block frame; a time sequence generator is used for identifying the second block frame of the second frame so as to form the turnover rate of a plurality of frames according to a comparison result of the first block frame with the corresponding second block frame; and the time sequence generator modulates the frame turnover rate of the second frame.
Description
Technical field
The invention relates to a kind of modulation system and method thereof, particularly relevant for a kind of adaptability picture update rate modulation system and method thereof.
Background technology
Along with Information technology is flourishing, the electronic product development is rapid, and quality no longer is a unique selection, and pollution-free industry more and more is much accounted of, and also represents energy-saving and carbon-saving increasingly important.At; Industry proposes to reduce the method that power consumption reaches power saving successively; The display of electronic product (like mobile computer) for example, its most of power consumption is that (liquid crystal display LCD) causes by LCD; Therefore how to reduce the power consumption of LCD (LCD), real in needing the problem of solution at present badly.
In a known technology, by the picture update rate (framerate) of the display card of modulation computer system.The picture update rate of known display card is to play 60 pictures per 1 second, that is picture update rate is 60Hz, to cooperate the minimum acceptable picture level of flapping of human eye.But when picture was in static state, this picture update rate did not need so high, so display card stores multiple different picture update rate, by judging that picture is in dynamically or the static picture update rate that comes this display card of modulation.When picture when being static, slowly downgrade picture update rate, when picture is in when dynamic, slowly heighten picture update rate, so when picture update rate reduces, can reach the effect of power saving.(phase-locked loop PLL) changes the circuit of display card, causes circuit design too complicated and increase manufacturing cost yet the shortcoming of the picture update rate of above-mentioned change display card need to be the additional designs phase-locked loop.
In another known technology, be in dynamically or static by the detecting picture, with the scan mode of the gate drivers (gate driver) that changes display, it divides into gradual and alternating expression.When picture when being dynamic, gate drivers is to be gradual scanning, that is general scan mode, and when picture when being static, gate drivers is to be interleaved type scanning.For example when showing N picture; Only open the gate drivers of (actuate) odd number bar (odd lines), and when showing N+1 picture, open the gate drivers of even number bar (evenlines); Though because frequency is fast and be tableaux; Human eye is difficult for discovering the flaw that picture shows, the frequency of operation that reaches gate drivers reduces half, the purpose that power consumption also reduces.Yet whether the shortcoming of said method is to detect picture and changes and need two pictures of comparison, and scan mode is alternating expression, so unusual when the static picture that is prone to when rotating the attitude picture, and picture is prone to the serious flicker of generation.In addition, because the scanning of gate drivers is alternating expression, so the selection of picture update rate is restricted, for example picture update rate can only be 60Hz or 30Hz.
In view of this, be necessary really the picture update rate modulation system of known displays is improved.
Summary of the invention
A purpose of the present invention is to provide a kind of adaptability picture update rate modulation system and method thereof, to improve the problem that solves film flicker.
Another object of the present invention is to provide a kind of adaptability picture update rate modulation system and method thereof, to solve the problem of picture display abnormality.
Another purpose of the present invention is to provide a kind of adaptability picture update rate modulation system and method thereof, selects so that more electricity-saving mechanism to be provided, and saves the cost that additional circuit is set.
For reaching above-mentioned purpose, the present invention provides a kind of adaptability picture update rate modulation system and method thereof, and this adaptability picture update rate modulation system comprises screen processing, counting unit, picture change detecting unit and clock generator.
This screen processing receives first picture and second picture in regular turn, and wherein this first picture has the plural first block picture, and this screen processing is cut apart this second picture to form the plural second block picture.Picture change detecting unit is by each first block picture of comparison and corresponding each second block picture, to detect the upset condition between this first picture and this second picture.Clock generator is according to the comparison result of each first block picture and corresponding each second block picture; Use the second block picture of distinguishing this second picture and form plural picture update rate; And the picture update rate of this this second picture of clock generator modulation; With the picture update rate of output behind the modulation to this display device, to show that this second picture is in this display device.The pixel of this counting unit counting (count) this second picture is to define the size of each second block picture.Here, first picture for example is the previous display frame of display device, and second picture for example is to desire picture displayed at present.
When the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during greater than a standard change value, this clock generator is kept those picture update rates of those block groups.When the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during less than a standard change value, this clock generator downgrades those picture update rates of those block groups.When those picture update rates of two adjacent those block groups are inequality, and when those adjacent second block pictures produced change in two those block groups, this clock generator was kept those picture update rates of those higher block groups.
Adaptability picture update rate modulating method of the present invention comprises the following steps:
(a) utilize this screen processing to receive first picture and second picture in regular turn, wherein this first picture has the plural first block picture.
(b) utilize this screen processing to cut apart this second picture to form the plural second block picture.
(c) utilize this screen processing to calculate first brightness of each those first block picture and second brightness of each second block picture respectively.The luminance difference of those first brightness of these those first block pictures of screen processing calculating and those second brightness of corresponding those second block pictures; And relatively this luminance difference and a brightness critical values are to determine the upset condition between this first picture and this second picture.
(d) utilize this picture change detecting unit each first block picture of comparison and corresponding each second block picture, to detect the upset condition between this first picture and this second picture.
(e) according to the comparison result of each first block picture and corresponding each second block picture, the second block picture that utilizes this clock generator to distinguish this second picture forms plural picture update rate.
(f) utilize the picture update rate of this this second picture of clock generator modulation, with the picture update rate behind the output modulation to this display device, to show that this second picture is in this display device.
For letting the foregoing of the present invention can be more obviously understandable, hereinafter is special lifts preferred embodiment, and cooperates appended graphicly, elaborates as follows:
Description of drawings
Fig. 1 is the calcspar that illustrates according to adaptability picture update rate modulation system in the embodiment of the invention.
Fig. 2 illustrates according to picture segmentation synoptic diagram in the embodiment of the invention.
Fig. 3 A is the synoptic diagram of cutting apart that illustrates according to first picture in the embodiment of the invention.
Fig. 3 B is the synoptic diagram of cutting apart that illustrates according to second picture in the embodiment of the invention.
Fig. 4 illustrates the sequential synoptic diagram that exports the control signal of display device according to clock generator in the embodiment of the invention to.
Fig. 5 is the sequential synoptic diagram that illustrates according to this data actuating signal (SDE), plural output enable signal (SOE) and data-signal in the embodiment of the invention.
Fig. 6 is the process flow diagram that illustrates according to carrying out adaptability picture update rate modulating method in the embodiment of the invention.
Embodiment
Fig. 1 is the calcspar that illustrates according to adaptability picture update rate in the embodiment of the invention (frame rate) modulation system 100.This adaptability picture update rate modulation system 100 is applicable to display system; For example be LCD (liquid crystal display; LCD); And these adaptability picture update rate modulation system 100 connected system end 102 to display device 104, this system end 102 is in order to produce the video signal source, and this display device 104 is in order to show the picture from this adaptability picture update rate modulation system 100.This adaptability picture update rate modulation system 100 comprises screen processing 106, counting unit 108, picture change detecting unit 110 and clock generator 112.This screen processing 106, this counting unit 108, this picture change detecting unit 110 and this clock generator 112 are respectively coupled to this system end 102; To receive video signal source from this system end 102; This video signal source comprise picture data (frame data) and data actuating signal (data enable signal, SDE).This system end 102 utilizes this adaptability picture update rate modulation system 100 of this data actuating signal (SDE) activation, to export picture 120 in regular turn to this adaptability picture update rate modulation system 100.This screen processing 106 couples this counting unit 108 to this picture change detecting unit 110, and this clock generator 112 is coupled to this picture change detecting unit 110.
In this adaptability picture update rate modulation system 100; This screen processing 106 receives first picture and second picture in regular turn; Wherein this first picture has the plural first block picture, and this screen processing 106 is cut apart this second picture to form the plural second block picture.Picture change detecting unit 110 is by each first block picture of comparison and corresponding each second block picture, to detect the upset condition between this first picture and this second picture.Clock generator 112 is according to the comparison result of each first block picture and corresponding each second block picture; Use the second block picture of distinguishing this second picture and form plural picture update rate; And the picture update rate of this this second picture of clock generator 112 modulations; With the picture update rate of output behind the modulation to this display device 104, to show that this second picture is in this display device 104.The pixel of these counting unit 108 counting (count) these second pictures is to define the size of each second block picture.Here, first picture for example is the previous display frame of display device 104, and second picture for example is to desire picture displayed at present.
With reference to figure 2, it illustrates according to the picture that has plurality of blocks picture 124 in the embodiment of the invention 120 cuts apart synoptic diagram.This screen processing 106 forms plurality of blocks picture (block frame) 124 in order to cut apart a picture (frame) 120; Each block picture 124 comprises plural pixel (pixel); Each pixel be by red (red, R), green (green, G) and blue (blue; B) three primary colors (RGB) are formed, that is each pixel has R value, G value and B value.The present invention utilizes R value, G value and B value to see through the brightness value (Y) that a conversion formula calculates each pixel, Y=0.3*R+0.59*G+0.11*B for example, and calculate the summation of the pixel brightness value (Y) of each block picture.
In one embodiment, this screen processing 106 is cut apart this picture and formed 12 block pictures 124, and is as shown in Figure 2; The resolution of this picture 120 is 800 * 480 pixels (pixel), and the resolution of each block picture 124 is 200 * 160 pixels, and each pixel can be made up of the digital signal of 6 (bits); When R value=100; G value=100, B value=100 o'clock, the brightness value of this pixel (Y)=0.3*100+0.59*100+0.11*100=100.Therefore each pixel is through aforementioned calculation, and each block picture has a brightness value respectively.It should be noted that the present invention's different conversion formula also capable of using calculates the brightness value of each block picture.
With reference to figure 1 and Fig. 3 A-3B, Fig. 3 A figure is the synoptic diagram of cutting apart that illustrates according to the first picture 120a in the embodiment of the invention; Fig. 3 B is the synoptic diagram of cutting apart that illustrates according to the second picture 120b in the embodiment of the invention.This screen processing 106 comprises picture segmentation module 114, data computation module 116 and buffer 118; This picture segmentation module 114 is respectively coupled to this data computation module 116 and this buffer 118, and this data computation module 116 is coupled to this buffer 118.Picture segmentation module 114 is in order to cutting apart this first picture 120a forming those first block pictures 124a, and cuts apart this second picture 120b to form those second block pictures 124b.Data computation module 116 is in order to first brightness of calculating each those first block pictures 124a respectively and second brightness of each those second block pictures 124b.Buffer 118 is in order to those first brightness of storing those first block pictures 124a and those second brightness of those second block pictures 124b.This counting unit 108 comprises leveler counting unit 108a and vertimeter counting unit 108b; Leveler counting unit 108a is in order to counting the leveler numerical value of each those second block pictures 124b, that is counting is inputed to the pixel of horizontal direction of the picture of adaptability picture update rate modulation system 100 by system end 102.Vertimeter counting unit 108b is in order to count the vertimeter numerical value of each those second block pictures 124b; That is counting is inputed to the pixel of vertical direction of the picture of adaptability picture update rate modulation system 100 by system end 102; So can be by leveler numerical value and vertimeter numerical value, to define the size of each second block picture 124b.
In Fig. 3 A figure, when the last time (t-1), this picture segmentation module 114 is cut apart this first picture 120a and is formed plural first block picture (B1-B12) 124a; In Fig. 3 B, when the present time (t), this picture segmentation module 114 is cut apart this second picture 120b to form the plural second block picture (B1 '-B12 ') 124b.This data computation module 116 is in order to second brightness of first brightness of calculating each those first block picture (B1-B12) respectively and each those second block picture (B1 '-B12 ').This buffer 118 is in order to the value of second brightness of the value of first brightness that stores those first block pictures (B1-B12) and those second block pictures (B1 '-B12 ').
This picture change detecting unit 110 calculates the luminance difference of second brightness of first brightness and the corresponding second block picture (B1 '-B12 ') of those first block pictures (B1-B12); And relatively this luminance difference and a brightness critical values are to determine the upset condition between this first picture 120a and this second picture 120b.When this luminance difference during greater than this brightness critical values, those second block pictures 124b produces change with respect to those first block pictures 124a.When those luminance difference during less than this brightness critical values, those second block pictures 124b does not produce change with respect to those first block pictures 124a.
This second picture 120b comprises plurality of blocks group (122a, 122b, 122c); Each those block group (122a, 122b, 122c) is made up of those second block pictures of a part (B1 '-B12 '), and those block groups (122a, 122b, 122c) correspond to those picture update rates respectively.When the upset condition of those second block pictures of this picture change detecting unit 110 those block groups of detecting (122a, 122b, 122c) (B1 '-B12 ') during greater than a standard change value, this clock generator 112 is kept those picture update rates of those block groups (122a, 122b, 122c).When the upset condition of those second block pictures of this picture change detecting unit 110 those block groups of detecting (122a, 122b, 122c) (B1 '-B12 ') during less than a standard change value, this clock generator 112 downgrades those picture update rates of those block groups.
In one embodiment; After the second block picture 124b of the first block picture 124a of the first picture 120a and second picture 120b comparison is accomplished; This second picture 120b is divided into three block groups (122a, 122b, 122c); That is the first block group (B1 '-B4 '), the second block group (B5 '-B8 ') and the 3rd block group (B9 '-B12 '); In each block group (122a, 122b, 122c), determine whether adjusting the picture update rate of each block group (122a, 122b, 122c) according to the quantity of the upset condition of those second block pictures 124b, to open moving electricity-saving mechanism.For example comprise four block picture 124b at the first block group (B1 '-B4 ') 122a, produce change if surpass 2 block pictures (that is standard change value is 2) 124b, then the picture update rate with the first block group (B1 '-B4 ') 122a maintains 60Hz; If the block picture 124b of change does not surpass 2, then the picture update rate with the first block group (B1 '-B4 ') 122a is tuned as 50Hz; If there is not block picture 124b change fully, be expressed as tableaux, the picture update rate of the first block group (B1 '-B4 ') 122a then is tuned as 40Hz.Likewise, the judgement of second block group (B5 '-B8 ') and the 3rd block group (B9 '-B12 '), adjustment mode are as the above-mentioned first block group (B1 '-B4 ').
In the present invention; When those picture update rates of adjacent two those block groups (122a, 122b, 122c) are inequality; And adjacent those second block pictures in two those block groups (122a, 122b, 122c) (B1 '-B12 ') when producing change, this clock generator 112 is kept the picture update rate of those higher block groups.In other words; For the block picture avoiding changing at the first block group (B1 '-B4 ') 122a, the second block group (B5 '-B8 ') 122b and the 3rd block group (B9 '-the B12 ') intersection that 122c is adjacent; When the picture update rate of two adjacent block groups (122a, 122b, 122c) is inequality; Even picture produces unusual; Whether two adjacent block picture 124b of adaptability picture update rate modulation system's 100 effectively further detecting upper and lower block groups (122a, 122b, 122c) of the present invention change; When the picture update rate that produces change and these adjacent two block groups (122a, 122b, 122c) was inequality, this clock generator 112 was forced to make adjacent two block groups (122a, 122b, 122c) maintain picture update rate higher among both, effectively solves dynamic menu and produces unusual problem.
In the process of modulation picture update rate; With the LCD is example; Adaptability picture update rate modulation of the present invention system 100 utilize output enable signal (output enable signal) control display device 104 gate drivers (gate driver) unlatching (ON) with close (OFF); When output enable signal is high levle, this clock generator 112 close gate drivers thin film transistor (TFT) (thin filmtransistor, TFT); When output enable signal is low level; This clock generator 112 is opened thin film transistor (TFT) (the thin film transistor of gate drivers; TFT), use in control second picture block group 122 and whether carry out picture data and upgrade, to reach the purpose of accommodation picture update rate.The modulation mode of adaptability picture update rate modulation of the present invention system 100 details as follows.
With reference to figure 1, Fig. 3 A figure and Fig. 4, Fig. 4 illustrates the sequential synoptic diagram that exports the control signal of display device 104 according to data actuating signal in the embodiment of the invention (SDE) and clock generator 112 to.This control signal comprises vertical frequency signal (VCLK) and output enable signal (output enablesignal; SOE); With a picture; This vertical frequency signal (VCLK) corresponds to the horizontal scanning line (line) of this second picture 124b, that is this horizontal scanning line (line) quantity equals the vertimeter numerical value of this second picture 124b; This clock generator 112 is according to accurate this display device 104 of position activation (enable) of this output enable signal (SOE); Block group 122 picture datas that make this second picture of the 100 selectivity output 124b of this adaptability picture update rate modulation system are to this display device 104, and wherein this output enable signal (SOE) for example is output enable voltage quasi position (output enable voltage).In the preferred embodiment, this output enable signal (SOE) activation before this vertical frequency signal (VCLK) rising edge (rising edge) triggers is shown in the TL of Fig. 4, with the output of the picture data of the block group 122 of this second picture of correct control 124b.
Therefore; Adaptability picture update rate modulation of the present invention system 100 utilizes screen processing 106 that second stroke of face 120b is divided into plurality of blocks picture 124; And according to the picture update rate of the upset condition modulation block group (122a, 122b, 122c) of block picture, to improve the problem that solves second picture 120b flicker.
With reference to figure 1, Fig. 3 A figure and Fig. 5, Fig. 5 illustrates according to the sequential synoptic diagram of this data actuating signal (SDE) in the embodiment of the invention with plural output enable signal (SOE).In one embodiment, high levle cycle of this data actuating signal (SDE) is divided into three parts (126a, 126b, 126c), corresponds to the first block group 122a, the second block group 122b and the 3rd block group 122c of this second picture 120b respectively.This output enable signal (SOE) is divided into three parts; Comprise first output enable signal (SOE1), second output enable signal (SOE2) and the 3rd output enable signal (SOE3), correspond to three parts (126a, 126b, 126c) of this data actuating signal (SDE) respectively.The pixel of the block group of the second picture 120b (122a, 122b, 122c) is made up of Data_R picture data, Data_G picture data and Data_B picture data respectively.
Adaptability picture update rate modulation of the present invention system 100 utilizes each picture update rate to correspond to each block group (122a, 122b, 122c); When the picture update rate of these clock generator 122 modulations (for example increase or downgrade) block groups (122a, 122b, 122c); According to the picture update rate behind the modulation; This clock generator 112 is this display device 104 of activation optionally, with the block group (122a, 122b, 122c) of exporting this second picture 120b to this display device 104.The picture update rate of keeping block group (122a, 122b, 122c) when this clock generator 112 is during in a definite value; Those block groups that this clock generator 112 is exported this second picture 120b with fixed image data cause extra power consumption to this display device 104 by these fixed image data to prevent its data from constantly changing.
Compared to the first picture 120a, when judging that the second picture 120b is in when dynamic, its picture update rate is defined as 60Hz, that is per second shows 60 pictures; When this picture update rate came down to 50Hz, compared to 60Hz, per second reduced 10 pictures of renewal, and the rest may be inferred by analogy.Adaptability picture update rate modulation of the present invention system 100 utilizes the thin film transistor (TFT) (TFT) of clock generator 112 output enable signals (SOE) hard closing pixel; To stop the renewal of picture data; Therefore when picture update rate modulation during to 50Hz; The output enable signal (SOE) that comprises 1 picture in per 6 pictures maintains the high levle state; With hard closing thin film transistor (TFT) (TFT), so comprise in 60 pictures of per second that 10 picture datas are not updated, use the picture update rate of the block group (122a, 122b, 122c) that changes the second picture 120b.Likewise, when this picture update rate changes to 40Hz,, comprise in per 3 pictures that the output enable signal (SOE) of 1 picture data maintains the high levle state compared to 60Hz.
In one embodiment; The picture update rate of the first block group 122a, the second block group 122b and the 3rd block group 122c of this second picture 120b is respectively 60Hz; 50Hz; 40Hz, these picture update rates are respectively with first output enable signal (SOE1), second output enable signal (SOE2) and the 3rd output enable signal (SOE3) expression, and be as shown in Figure 5.Each block group has different picture update rates, and output enable signal (SOE) is exported the picture data signal to display device 104 according to different picture update rates.When output enable signal (SOE) when being in high levle; Close the thin film transistor (TFT) (TFT) of pixel; The data that simultaneously adaptability picture update rate modulation system 100 received from system end 102 maintain a fixed value; That is thin film transistor (TFT) (TFT) frame update data not when closing; In Fig. 5, Data_R picture data, Data_G picture data and Data_B picture data are to close thin film transistor (TFT) (TFT) with the picture update rate selectivity of 60Hz, 50Hz, 40Hz, effectively avoid bringing in constant renewal in picture data and cause extra power consumption.
According to above-mentioned; Adaptability picture update rate modulation of the present invention system 100 utilizes clock generator 112 to produce the picture update rate of the block group that corresponds to different second pictures; Provide more electricity-saving mechanism to select; And avoid extra circuit being set, effectively save manufacturing cost at system end 102.
With reference to figure 1 and Fig. 6, Fig. 6 is the process flow diagram that illustrates according to carrying out adaptability picture update rate modulating method in the embodiment of the invention.This adaptability picture update rate modulation system 100 comprises screen processing 106, counting unit 108, picture change detecting unit 110 and clock generator 112.Adaptability picture update rate modulating method of the present invention comprises the following steps:
In step S200, utilize this screen processing 106 to receive first picture and second picture in regular turn, wherein this first picture has the plural first block picture.And utilize this screen processing 106 to cut apart this first picture to form those first block pictures.In one embodiment, utilize counting unit 108 these second pictures of counting, to define the size of each those second block picture.
In step S202, utilize this screen processing 106 to cut apart this second picture to form the plural second block picture.
In step S204, utilize this screen processing 106 to calculate first brightness of each those first block picture and second brightness of each second block picture respectively.The luminance difference of those first brightness of these screen processing 106 those first block pictures of calculating and those second brightness of corresponding those second block pictures; And relatively this luminance difference and a brightness critical values are to determine the upset condition between this first picture and this second picture.
In step S206, utilize this picture change detecting unit 110 each first block picture of comparison and corresponding each second block pictures, to detect the upset condition between this first picture and this second picture.
In step S208, according to the comparison result of each first block picture and corresponding each second block picture, the second block picture that utilizes this clock generator 112 to distinguish this second picture forms plural picture update rate.When this luminance difference during greater than this brightness critical values, those second block pictures produce change with respect to those first block pictures.When those luminance difference during less than this brightness critical values, those second block pictures do not produce change with respect to those first block pictures.This second picture comprises the plurality of blocks group, and each those block group is made up of those second block pictures of a part, and those block groups correspond to those picture update rates respectively.
In step S210, utilize the picture update rate of this this second picture of clock generator 112 modulations, with the picture update rate of output behind the modulation to this display device 104, to show that this second picture is in this display device 104.When the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during greater than a standard change value, this clock generator is kept those picture update rates of those block groups.When the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during less than a standard change value, this clock generator 112 downgrades those picture update rates of those block groups.In addition, when those picture update rates of two adjacent those block groups are inequality, and when those adjacent second block pictures produced change in two those block groups, this clock generator 112 was kept those picture update rates of those higher block groups.In adaptability picture update rate modulating method of the present invention; Each those picture update rate corresponds to each those block group; When those picture update rates of this those block groups of clock generator 112 modulations; According to those picture update rates behind the modulation, this clock generator 112 is this display device 104 of activation optionally, with those block groups of exporting this second picture to this display device 104.Those picture update rates of keeping those block groups when this clock generator 112 are during in a definite value; Those block groups that this clock generator 112 is exported this second picture 120b with fixed image data cause extra power consumption to this display device 104 by these fixed image data to prevent its data from constantly changing.
In sum, adaptability picture update rate modulation of the present invention system is according to the picture update rate of the upset condition modulation block group of block picture, to improve the problem that solves second film flicker.When the picture update rate that produces change and these adjacent two block groups was inequality, this clock generator made two adjacent block groups maintain picture update rate higher among both, effectively solved dynamic menu and produced unusual problem.In addition, adaptability picture update rate modulation of the present invention system utilizes clock generator to produce the picture update rate of the block group that corresponds to different second pictures, provides more electricity-saving mechanism to select, and avoids being provided with extra circuit section cost-saving.
Though the present invention with preferred embodiment openly as above; Right its is not in order to limit the present invention; Has common knowledge the knowledgeable in the technical field under the present invention; Do not breaking away from the spirit and scope of the present invention, when can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking aforesaid the claim scope person of defining.
Claims (16)
1. an adaptability picture update rate modulation system is applicable to a display device, and this adaptability picture update rate modulation system comprises:
One screen processing receives one first picture and one second picture in regular turn, and wherein this first picture has the plural first block picture, and this screen processing is cut apart this second picture to form the plural second block picture;
One picture change detecting unit is coupled to this screen processing, in order to compare each those first block picture and corresponding each those second block picture, to detect the upset condition between this first picture and this second picture; And
One sequential generator; Be coupled to this picture change detecting unit; Comparison result of those first block pictures and corresponding each those second block picture according to each is used those second block pictures of distinguishing this second picture and is formed plural picture update rate, and those picture update rates of this this second picture of clock generator modulation; With output those picture update rates behind the modulation to this display device, to show that this second picture is in this display device.
2. adaptability picture update rate modulation as claimed in claim 1 system is characterized in that this screen processing comprises:
One picture segmentation module in order to cutting apart this first picture forming those first block pictures, and is cut apart this second picture to form those second block pictures;
One data computation module is coupled to this picture segmentation module, in order to one first brightness of calculating each those first block picture respectively and one second brightness of each those second block picture; And
One buffer is coupled to this picture segmentation module and this data computation module, in order to the value of those second brightness of the value of those first brightness of storing those first block pictures and those second block pictures.
3. adaptability picture update rate modulation as claimed in claim 2 system; It is characterized in that; The luminance difference of those first brightness of these those first block pictures of picture change detecting unit calculating and those second brightness of corresponding those second block pictures; And relatively this luminance difference and a brightness critical values are to determine the upset condition between this first picture and this second picture.
4. adaptability picture update rate modulation as claimed in claim 3 system; It is characterized in that; This second picture comprises the plurality of blocks group, and each those block group is made up of those second block pictures of a part, and those block groups correspond to those picture update rates respectively.
5. adaptability picture update rate modulation as claimed in claim 4 system; It is characterized in that; When the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during greater than a standard change value; This clock generator is kept those picture update rates of those block groups; When the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during less than a standard change value, this clock generator downgrades those picture update rates of those block groups.
6. adaptability picture update rate modulation as claimed in claim 4 system; It is characterized in that; When those picture update rates of two adjacent those block groups are inequality; And when those adjacent second block pictures produced change in two those block groups, this clock generator made two adjacent those block groups maintain those picture update rates of those higher among both block groups.
7. adaptability picture update rate modulation as claimed in claim 4 system; It is characterized in that; Each those picture update rate corresponds to each those block group, when those picture update rates of this those block groups of clock generator modulation, according to those picture update rates behind the modulation; This clock generator is this display device of activation optionally, with those block groups of exporting this second picture to this display device.
8. adaptability picture update rate modulation as claimed in claim 1 system also comprises a counting unit, is coupled to this screen processing, and in order to count this second picture, to define the size of each those second block picture, this counting unit comprises:
One leveler counting unit is in order to count one second leveler numerical value of each those second block picture; And
One vertimeter counting unit is in order to count one second vertimeter numerical value of each those second block picture.
9. an adaptability picture update rate modulating method is applicable to a display device, it is characterized in that this method comprises the following steps:
(a) utilize a screen processing, receive one first picture and one second picture in regular turn, wherein this first picture has the plural first block picture;
(b) utilize this screen processing to cut apart this second picture to form the plural second block picture;
(c) utilize picture change detecting unit each those first block picture of comparison and corresponding each those second block picture, to detect the upset condition between this first picture and this second picture;
(d) comparison result of those first block pictures and corresponding each those second block picture according to each, those second block pictures that utilize a sequential generator to distinguish this second picture form plural picture update rate; And
(e) utilize those picture update rates of this this second picture of clock generator modulation, with those picture update rates behind the output modulation to this display device, to show that this second picture is in this display device.
10. answering property picture update rate modulating method as claimed in claim 9 is characterized in that,
In step (a), more comprise and utilize this screen processing to cut apart this first picture to form those first block pictures;
Also comprise step (b1) afterwards in step (b): utilize this screen processing to calculate one first brightness of each those first block picture and one second brightness of each those second block picture respectively.
11. answering property picture update rate modulating method as claimed in claim 10 is characterized in that, in step (b1), more comprises:
Calculate the luminance difference of those second brightness of those first brightness and corresponding those second block pictures of those first block pictures,
Relatively this luminance difference and a brightness critical values are to determine the upset condition between this first picture and this second picture.
12. adaptability picture update rate modulating method as claimed in claim 10; It is characterized in that in step (d), this second picture comprises the plurality of blocks group; Each those block group is made up of those second block pictures of a part, and those block groups correspond to those picture update rates respectively.
13. adaptability picture update rate modulating method as claimed in claim 12; It is characterized in that; In step (e); When the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during greater than a standard change value; This clock generator is kept those picture update rates of those block groups, and when the upset condition of those second block pictures of those block groups of this picture change detecting unit detecting during less than a standard change value, this clock generator downgrades those picture update rates of those block groups.
14. adaptability picture update rate modulating method as claimed in claim 12; It is characterized in that; In step (e); When those picture update rates of two adjacent those block groups are inequality, and when those adjacent second block pictures produced change in two those block groups, this clock generator made two adjacent those block groups maintain those picture update rates of those higher among both block groups.
15. adaptability picture update rate modulating method as claimed in claim 12; It is characterized in that in step (e), each those picture update rate corresponds to each those block group; When those picture update rates of this those block groups of clock generator modulation; According to those picture update rates behind the modulation, this clock generator is this display device of activation optionally, with those block groups of exporting this second picture to this display device.
16. adaptability picture update rate modulating method as claimed in claim 12; It is characterized in that; In step (e); When this clock generator was kept those picture update rates of those block groups, this clock generator was exported those block groups of this second picture with fixed image data to this display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910209929A CN102054445B (en) | 2009-10-29 | 2009-10-29 | System and method for modulating turnover rate of adaptive frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910209929A CN102054445B (en) | 2009-10-29 | 2009-10-29 | System and method for modulating turnover rate of adaptive frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102054445A CN102054445A (en) | 2011-05-11 |
| CN102054445B true CN102054445B (en) | 2012-08-29 |
Family
ID=43958707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910209929A Expired - Fee Related CN102054445B (en) | 2009-10-29 | 2009-10-29 | System and method for modulating turnover rate of adaptive frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102054445B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971658B (en) * | 2013-02-04 | 2016-08-31 | 联咏科技股份有限公司 | Display drive apparatus and display drive method thereof |
| US9466252B2 (en) * | 2013-09-10 | 2016-10-11 | Innolux Corporation | Partial scanning gate driver and liquid crystal display using the same |
| TW201636988A (en) * | 2015-04-09 | 2016-10-16 | 友達光電股份有限公司 | Image display method, display device and operation method thereof |
| TWI556635B (en) * | 2015-11-06 | 2016-11-01 | 佳世達科技股份有限公司 | Media playback method |
| CN105824627A (en) * | 2016-03-15 | 2016-08-03 | 网易（杭州）网络有限公司 | Method and device for determining change of user interfaces |
| CN106297713B (en) * | 2016-09-26 | 2020-01-24 | 苏州佳世达电通有限公司 | Display method and display device for improving image dynamic blurring |
-
2009
- 2009-10-29 CN CN200910209929A patent/CN102054445B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102054445A (en) | 2011-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI413096B (en) | Adaptive frame rate modulation system and method thereof | |
| CN102054445B (en) | System and method for modulating turnover rate of adaptive frame | |
| US9773460B2 (en) | System, method, and computer program product for combining low motion blur and variable refresh rate in a display | |
| KR20180039232A (en) | Display device capable of changing frame rate and operating method thereof | |
| CN1928700B (en) | Projection type display device and method for controlling the same | |
| CN102169677A (en) | Video processing circuit, video processing method, liquid crystal display device, and electronic apparatus | |
| CN107610060B (en) | OLED image burning improvement method and device | |
| CN101572058A (en) | Backlight driving circuit and driving method for driving the same | |
| KR20160129207A (en) | Display Device Being Capable Of Driving In Low-Speed And Driving Method Of The Same | |
| US10223987B2 (en) | Regional DC balancing for a variable refresh rate display panel | |
| US9417682B2 (en) | Display unit driving device with reduced power consumption | |
| CN107615369B (en) | Control device, display device, control method, and computer-readable storage medium | |
| TW201413695A (en) | Display control system, processor, controller, and, display control method | |
| CN100505028C (en) | A frame updating rate matching method and system | |
| CN101630476A (en) | Driver and method for driving electro-optical device, electro-optical device, and electronic apparatus | |
| TWI416476B (en) | Liquid crystal device, control circuit therefor, and electronic apparatus | |
| US20230335041A1 (en) | Display apparatus and control method thereof | |
| US7821483B2 (en) | Interface circuit for data transmission and method thereof | |
| CN110189667A (en) | A kind of display verification method | |
| US7570256B2 (en) | Apparatus and method for transmitting data of image display device | |
| KR101054349B1 (en) | High-definition billboard display system complements data rates | |
| CN104933985A (en) | Display substrate, display device and display substrate drive method | |
| KR20220067233A (en) | Display apparatus and control method thereof | |
| WO2017012279A1 (en) | Display method and display apparatus | |
| CN113393808A (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20161029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |