CN104361867A - Spliced screen display device and displaying driving method thereof - Google Patents
Spliced screen display device and displaying driving method thereof Download PDFInfo
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Abstract
The invention discloses a spliced screen display device and a displaying driving method thereof, solving the technical problems that the existing traditional spliced screen causes the situation that one screen needs more drivers, and drivers cannot be contained in the usable area except for the area behind the second screens as well as the technical problem that the heat dissipation is incomplete. The spliced screen display device comprises a display screen, a plurality of data drivers and a picture frame rate control circuit, wherein the display screen is formed by splicing a plurality of secondary screens; the plurality of data drivers are used for respectively driving the plurality of secondary screens; the picture frame rate control circuit is used for increasing the original picture frame rate by K times according to the original picture frame rate receiving images, so as to generate K picture frames for the plurality of data drivers within one picture period corresponding to the original picture frame rate.
Description
Technical field
The present invention relates to the Driving technique field of mosaic screen display device, especially relate to a kind of mosaic screen display device and its display drive method.
Background technology
For large display area, such as, be digital advertisement billboard, or indoor tv wall etc., due to the area of long-range single the display device of display area, therefore show image can be carried out with mosaic screen display device.
So-called screen display device, it is the some having multiple screens (tile screen) to show an image respectively, and these screen splicing becomes a large-sized display screen.Fig. 1 is the configuration diagram of traditional mosaic screen.As shown in Figure 1, large-sized mosaic screen 100 is spliced into M × N matrix-style by multiple undersized screen 102.Therefore, M value is normally greater than N value, but also can be equal N and form a large-sized mosaic screen 100 of square.Each secondary screen 102 can show the some corresponding to an image, and after 102 other images combinations of these screen, footpaths become a complete image that will show.
With regard to the mosaic screen product of current luminescence component (Light-Emitting Device, LED) array, it uses LED driver to carry out driving LED array, and reaches display effect.For the specification that spacing (pitch) is P1.488, the secondary screen that such as one piece of 12cm is square, form by by red, green, blue three LED based on a color pixel, it approximately needs 6400 lamp pearls, and at the general driver using 16 channels, its rough needs 60 drivers.This is for the requirement of Small Distance (fine pitch), and required LED driver can be more.This is not only the problem for having heat radiation under Small Distance, and also can be restricted in manufacturing process.
Fig. 2 is the configuration diagram of traditional secondary screen 102.As shown in Figure 2, for one screen 102, it utilizes n bar sweep trace to carry out show image, and each scanning has m pixel online.The pixel of each monochrome is a LED lamp bead.So after having scanned n bar sweep trace, just can present this screen 102 image to display, be the some of overall image.Pixel is generally be made up of luminescence component (Light-emitting device), meanwhile, can also be liquid crystal (LC) pixel.The pixel of a color is generally be made up of red/green/blue three pixels, and the other grey decision-making by red/green/blue three pixels is combined into the color that will present.Therefore, be still at secondary screen 102 and have some quantity, as n bar sweep trace, and sweep trace has some quantity, as m pixel, the startup for these m × n × 3 colored pixels is that the multiple passages provided by multiple driver drive, each colored pixels corresponding, convert required grey decision-making to voltage and drive the luminescence component of these m × n × 3 colored pixels, making correspondence send required brightness.Therefore, for one screen 102, because the channel quantity of driver is low, need a large number of driver traditionally, the incomplete problem of heat radiation can be caused.
More specifically, Fig. 3 is the driving mechanism schematic diagram of traditional mosaic screen 100.As shown in Figure 3, main frame 50 by the digitized map frame data of image to display, can input to controller 60 (Controller, TC).Controller 60 controls multiple driver 62.The passage that these drivers 62 provide corresponding can be connected to the pixel of mosaic screen 100, therefore, in image display once, through these drivers 62, the grey exponent number of the light emitting source assembly of each pixel according to predetermined luminance is started by controller 60, and form a show image.These drivers 62, as aforementioned, are actually the behind that grouping and correspondence are arranged on these screen 102.
The mode of conventional ADS driving time screen 102 is the drivers 62 adopting low cost and only have smallest number channel (channel), and these drivers 62 are that the behind being directly configured in time screen 102 is connected with circuit base plate.But a time screen 102 is still and has a considerable amount of m × n × 3 colored pixels, therefore one screen 102 can need multiple driver 62.When the image resolution of image day by day improves, the image resolution (m × n) of secondary screen 102 also can improve thereupon.The quantity of the driver 62 then required for secondary screen 102 also can improve, therefore, result in the setting that time screen 102 needs greater number driver, simultaneously, except being covered with the available area of time screen 102 behind, also cannot the technical matters of these drivers enough accommodating by causing, and cause the incomplete technical matters of heat radiation.
Summary of the invention
Embodiments provide a kind of mosaic screen display device and its display drive method, solve the technical matters that one screen that existing traditional mosaic screen causes needs the setting of greater number driver, simultaneously, avoid except area available after being covered with time screen back, and cannot the technical matters of these drivers enough accommodating by what cause, and cause the incomplete technical matters of heat radiation.
A kind of mosaic screen display device that the embodiment of the present invention provides, comprising:
Display screen, is spliced by multiple screens;
Multiple data driver, for driving multiple described screen respectively;
Picture frame rate control circuits, according to the original picture frame speed receiving image, increases described original picture frame speed with K multiple, in during making a picture frame corresponding with described original picture frame speed, produce K picture frame give multiple described data driver, wherein, K be more than or equal to 2 integer;
Wherein, the original gray-scale value of described picture frame rate control circuits to each pixel is revised, and in a described K picture frame, having the picture frame of a quantity to be show with the correction grey decision-making after described original gray-scale value increases a GTG, described quantity is one of them of 0 to K-1.
Preferably,
The value of described K is 2
l, L is natural number.
Preferably,
Described L value is 2, described 2
lthe grey decision-making that individual picture frame entirety produces is the GTG degree to described original gray-scale value increase by 0,1/4,2/4 or 3/4;
Wherein, 0 represents that described pixel is described 2
lwhat all show in individual picture frame is described original gray-scale value;
1/4 represent described pixel this 2
lwhat have the display of 3 picture frames in individual picture frame is described original gray-scale value, and what another 1 picture frame then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
2/4 represents that described pixel is described 2
lwhat have the display of 2 picture frames in individual picture frame is described original gray-scale value, and what another 2 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
3/4 represents that described pixel is described 2
lwhat have the display of 1 picture frame in individual picture frame is described original gray-scale value, and what another 3 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value.
Preferably,
Described mosaic screen display device also comprises:
One picture frame internal memory, described image is stored in described picture frame internal memory, and according to the combination of multiple described screen, correspondence distributes to multiple described screen.
Preferably,
Described mosaic screen display device also comprises:
Multiple picture frame internal memory, corresponding multiple described screen is configured respectively, multiple described the screen of described image mapped, and after allocating in advance, is stored in those picture frame internal memories respectively.
Preferably,
Described original picture frame speed is 60Hz or 50Hz, and the picture frame speed of a described K picture frame is 240Hz or 200Hz.
A kind of display drive method that the embodiment of the present invention provides, is used in the mosaic screen display device described in any one mentioned in the embodiment of the present invention, comprises:
Described mosaic screen display device comprises display screen, multiple data driver and picture frame rate control circuits, and described display screen become by multiple screen splicings, and it is characterized in that, display drive method comprises:
Configure multiple described data driver, to drive multiple described screen respectively;
By described picture frame rate control circuits, according to the original picture frame speed receiving image, described original picture frame speed is increased with K multiple, in during making a picture frame corresponding with described original picture frame speed, produce K picture frame to multiple described data driver, wherein, K be more than or equal to 2 integer;
Revised by the original gray-scale value of described picture frame rate control circuits to each pixel, and in a described K picture frame, having the picture frame of a quantity to be show with the correction grey decision-making after described original gray-scale value increases a GTG, described quantity is one of them of 0 to K-1.
Preferably,
Described K value is 2
l, L is natural number.
Preferably,
Described L value is 2, described 2
lthe grey decision-making that individual picture frame entirety produces is the GTG degree to described original gray-scale value increase by 0,1/4,2/4 or 3/4;
Wherein, 0 represents that described pixel is described 2
lwhat all show in individual picture frame is described original gray-scale value;
1/4 represent described pixel this 2
lwhat have the display of 3 picture frames in individual picture frame is described original gray-scale value, and what another 1 picture frame then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
2/4 represents that described pixel is described 2
lwhat have the display of 2 picture frames in individual picture frame is described original gray-scale value, and what another 2 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
3/4 represents that described pixel is described 2
lwhat have the display of 1 picture frame in individual picture frame is described original gray-scale value, and what another 3 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value.
Preferably,
Described image is stored in described picture frame internal memory, and according to the combination of multiple described screen, correspondence distributes to multiple described screen.
Preferably,
Multiple described the screen of described image mapped, and after allocating in advance, be stored in multiple picture frame internal memories of corresponding multiple described screen respectively.
Preferably,
Described original picture frame speed is 60Hz or 50Hz, and the picture frame speed of a described K picture frame is 240Hz or 200Hz.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
A kind of mosaic screen display device that the embodiment of the present invention provides and display drive method thereof, wherein display device comprises: display screen, is spliced by multiple screens; Multiple data driver, for driving multiple screens respectively; Picture frame rate control circuits, according to the original picture frame speed receiving image, increases original picture frame speed with K multiple, in during making a picture frame corresponding with original picture frame speed, produce K picture frame give multiple data driver, wherein, K be more than or equal to 2 integer; Wherein, the original gray-scale value of picture frame rate control circuits to each pixel is revised, and in K picture frame, have the picture frame of a quantity to be show with the correction grey decision-making after original gray-scale value increases a GTG, and quantity is one of them of 0 to K-1.In the present embodiment, by increasing described original picture frame speed with K multiple, in during making a picture frame corresponding with described original picture frame speed, produce K picture frame to multiple described data driver, the original gray-scale value of picture frame rate control circuits to each pixel is revised, and in a described K picture frame, have the picture frame of a quantity to be show with the correction grey decision-making after described original gray-scale value increases a GTG, solve the technical matters that one screen that existing traditional mosaic screen causes needs the setting of greater number driver, simultaneously, avoid except area available after being covered with time screen back, and cannot the technical matters of these drivers enough accommodating by what cause, and cause the incomplete technical matters of heat radiation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the configuration diagram of traditional mosaic screen of prior art;
Fig. 2 is the configuration diagram of the tradition time screen of traditional mosaic screen of prior art;
Fig. 3 is the driving mechanism schematic diagram of traditional mosaic screen of prior art;
A kind of structural representation of first embodiment of mosaic screen display device of Fig. 4 for providing in the embodiment of the present invention;
A kind of structural representation of second embodiment of mosaic screen display device of Fig. 5 (a)-5 (b) for providing in the embodiment of the present invention;
A kind of schematic flow sheet of first embodiment of display drive method of Fig. 6 for providing in the embodiment of the present invention;
A kind of schematic flow sheet of second embodiment of display drive method of Fig. 7 for providing in the embodiment of the present invention;
The relation schematic diagram that Fig. 8 is the grey decision-making that provides in the embodiment of the present invention and gray scale voltage;
Fig. 9 produces the schematic diagram of mechanism of GTG correction for the picture frame rate control circuits that provides in the embodiment of the present invention;
Illustrate: 50, main frame; 60, controller (C); 62, driver; 100, mosaic screen; 102, secondary screen; 210, time schedule controller (TC); 212, picture frame rate control circuits (FRC); 220, data driver; 222, gate pole driver.
Embodiment
Embodiments provide a kind of mosaic screen display device and its display drive method, solve the technical matters that one screen that existing traditional mosaic screen causes needs the setting of greater number driver, simultaneously, avoid except area available after being covered with time screen back, and cannot the technical matters of these drivers enough accommodating by what cause, and cause the incomplete technical matters of heat radiation.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present invention proposes the driving mechanism to mosaic screen display device, not only can reduce the number of drives that time screen uses, and can increase the gradation of show image.Below for some embodiments, the present invention is described, but the present invention is not limited only to lifted embodiment.
In the problem of quantity considering the driver how reduced required for one screen, the present invention's proposition can be used in the driver that general panel display board uses, and does not re-use the traditional driver of mosaic screen.
The driving framework that the present invention proposes, uses as the data driver (source driver) of flat-panel monitor and the mode of gate pole driver promote LED pixel.In addition due to single time screen, its image resolution is lower relatively, therefore original digital signal can be redistributed process.In addition, frame rate faster can also be produced, increase greyscale resolution, to increase gradation, and represent abundanter color.
Refer to Fig. 4, the first embodiment of a kind of mosaic screen display device provided in the embodiment of the present invention comprises:
Because the image resolution of current panel display board is large more than the image resolution of one screen 102.General flat-panel monitor is such as display panels (LCD panel) or luminescence component display panel (LED panel), its image resolution such as 720x480,1920x1080 or even higher image resolution.Therefore be used in the driver of panel display board, such as single data driver 220, the driving channel quantity that it has just is greater than a secondary channel quantity required for screen in mosaic screen 100.Therefore, a time screen of the present invention, with regard to data driver, it such as only needs one, again or in response to the research and development of higher image resolution, can only use a small amount of data driver can drive a secondary screen.Owing to being the type of drive adopting data driver 220 and gate pole driver 222, it needs the controlling mechanism of time schedule controller (TC) 210 pairs of data drivers 220 and gate pole driver 222, also in response to changing.
So in mosaic screen display device of the present invention, the quantity for the data driver 220 required for one screen can be reduced to one, or on a small quantity, can not affect the problem of heat radiation, therefore can in response to the display of high image resolution.
Refer to Fig. 5 (a)-5 (b), the first embodiment of a kind of mosaic screen display device provided in the embodiment of the present invention comprises:
Mosaic screen display device meets the driving signal schematic diagram of VESA standard.As shown in Fig. 5 (a), under VESA standard, vertical synchronizing signal (Vsync) is a corresponding picture frame, the therefore numerical data of an image, and it is also so-called drawing frame data, can input during a vertical synchronizing signal.In other words, the frequency of vertical synchronizing signal is exactly picture frame speed, is generally 60Hz or 50Hz.After the pulses generation of vertical synchronizing signal, horizontal synchronization signal (Hsync) is produced by gate pole driver, to scan the image of each line, it is namely within the cycle of a vertical synchronizing signal, need to send n pulse signal add before and after phase buffer between buffering pulse.And between the cycle of horizontal synchronization signal (Hsync), send signal (DE) and obtain the time to define by data driver input data, it is exactly divide other gray scale voltage needs within the cycle of signal (DE), drive time screen a m online pixel of scanning.As Fig. 5 (b) is depicted as horizontal synchronization signal (Hsync) sequential relationship clearer and more definite with signal (DE).Signal (DE) needs the display of the corresponding grey decision-making of the pixel of a driving horizontal scanning line during high levle.So, vertical synchronizing signal (Vsync) inspires the display of a picture frame.
It should be noted that, the present invention adopts the driver of flat-panel monitor to drive time screen.Because the driver of flat-panel monitor shows usefulness based on it, its frequency can be faster, such as, can reach 240Hz or higher picture frame speed.Such picture frame speed is for the display of one screen, and its driving force is greater than demand.In addition, for the picture frame speed of standard 60Hz, it is equivalent to a pixel under identical GTG, can maintain the displaying time of about 1/60 second.Again, the image shown by mosaic screen, its greyscale resolution is less, and be such as the resolution of 6, that is grey decision-making only has 2
6=64 grey decision-making, therefore gradation is not enough, and is generally used in the image of flat-panel monitor, and its greyscale resolution can reach 2
8the change of=256 grey decision-making.Therefore, the present invention is when using the data driver of high driving channel and high picture frame speed, except being reduced in the quantity of the data driver that a secondary screen uses, it is such as 1, the present invention also proposes to adopt picture frame speed to control (Frame Rate Control, FRC) circuit 212, such as, shown in Fig. 4 in addition, thus its mechanism larger color-resolution can be reached, after will be described in.Picture frame speed controls (FRC) circuit 212 and generally can be incorporated in time schedule controller (TC) 210, but this is not unique mode.
Refer to Fig. 6, the first embodiment of a kind of display drive method provided in the embodiment of the present invention comprises:
In step S250, the complete graph frame data that will show will be inputted, be stored in picture frame internal memory;
In step S252, by the matrix structure of allocation units according to the secondary screen of mosaic screen 100, be when by Image Segmentation, can suitably be assigned on each screen;
In step S254, the picture frame speed that picture frame rate control circuits can change original such as 60Hz has become higher picture frame speed, such as, be 240Hz.According to the highest picture frame speed allowed, be generally 2 of 60Hz
ldoubly, L is natural number, be namely 1,2,3 ..., N.The highest picture frame speed depending on driver in this its higher limit.With the picture frame speed of 240Hz, its namely relatively 60Hz increase the picture frame speed of 4 times.During an original picture frame of therefore 60Hz, can change and have 4 picture frames.Having is exactly cycle of a vertical synchronizing signal at 60Hz, under 240Hz, changes into 4 vertical synchronizing signals, therefore except original image, can also insert the display of three images again, and changing of its grey decision-making can Fig. 8, Fig. 9 describe in detail below;
After step S254 is to the adjustment of picture frame speed, in step S256, the drawing frame data comprising original graph frame data and insertion sequentially can drive time these images of screen display through data driver.
Refer to Fig. 7, the second embodiment of a kind of display drive method provided in the embodiment of the present invention comprises:
Figure 7 shows that the embodiment of another kind of change, but its mechanism is still similar to embodiment illustrated in fig. 6, difference is therebetween as follows:
Embodiment in the present invention shown in Fig. 7, each time screen can arrange corresponding picture frame internal memory, and the capacity of this picture frame internal memory only needs the image that can store time screen.Relative to the embodiment of Fig. 6, exchange at the step S250 of Fig. 7 and step S252.
Should be noted that, in step S252, for inputting the image that will show, just first distributing before being not yet stored into picture frame internal memory, afterwards in the secondary drawing frame data that step S250 will distribute, being stored into respectively in corresponding secondary picture frame internal memory.Step S254 afterwards and step S256 is then same as Fig. 6.
The correction mechanism that picture frame speed controls (FRC) circuit 212 pairs of grey decision-making is below described, when common application technology, a color pixel is formed with red/green/blue three pixels, it utilizes its three monochromatic pixels, produce the brightness of this monochrome according to grey decision-making, and go out a color pixel by the luminance mix of red, green, blue three include monochrome pixels.Therefore, the change of grey decision-making all can produce the color change presented.In addition based on the characteristic of the persistence of vision of human eye, to change the color be subject to be generally that the aggregate color received at 16.67ms decides, therefore increased picture frame speed can be used for adjusting last grey decision-making mixed by multiple picture frame.
First the GTG of numeral and the actual gray scale voltage driven is retouched.Because the brightness of liquid-crystalize element or LEDization element is by the voltage applied or shows that electric current determined, and not generally linear change.Fig. 8 illustrates according to one embodiment of the invention, the relation schematic diagram of grey decision-making and gray scale voltage.Refer to Fig. 8, a monochromatic pixel, for the grey decision-making of 6, its 64 linear GTGs, but corresponding driving voltage required for each GTG is not linear, therefore needs to utilize gamma curve to revise driving voltage, so for a grey decision-making g
i, utilize gamma curve to obtain corresponding driving voltage V
i.But based on being such as the circuit of 6, it also only can produce 64 kinds of voltages.Therefore, greyscale resolution is exactly 64 rank.
Further, describe how under 64 GTGs of 6, control by picture frame speed the GTG that (FRC) circuit 212 produces other.Picture frame rate control circuits as shown in Figure 9 produces the mechanism of GTG correction, describe for the picture frame speed of 240Hz, its picture frame under 60Hz picture frame speed, (FRC) circuit 212 can be controlled by picture frame speed and produce 4 corresponding picture frames, represent with f1, f2, f3, f4.For a pixel, its original predetermined grey decision-making that will show is such as g
i.
If be all display g at these 4 picture frame f1 ~ f4
igrey decision-making, then these 4 picture frame f1 ~ f4 still maintain grey decision-making g after mixing
i, therefore grey decision-making be modified to 0.If any one picture frame in these 4 picture frame f1 ~ f4, it is such as picture frame f1, and by the grey decision-making g of this pixel of this picture frame f1
iadd 1 and become g
i+ 1.Other three picture frame f2 ~ f4 then maintain display grey decision-making g in addition
i.So, these 4 picture frame f1 ~ f4 can obtain the correction of increase by 1/4 GTG after mixing.If wantonly two picture frames in these 4 picture frame f1 ~ f4, it is such as picture frame f1, f2, and by the grey decision-making g of this pixel of this picture frame f1, f2
iadd 1 and become g
i+ 1.Other two picture frames f3, f4 then maintain display grey decision-making g in addition
i.So, these 4 picture frame f1 ~ f4 can obtain the correction of increase by 2/4 GTG after mixing.If wantonly three picture frames in these 4 picture frame f1 ~ f4, it is such as picture frame f1, f2, f3, and by the grey decision-making g of this pixel of this picture frame f1, f2, f3
iadd 1 and become g
i+ 1.Other a picture frame f4 then maintains display grey decision-making g in addition
i.So, these 4 picture frame f1 ~ f4 can obtain the correction of increase by 3/4 GTG after mixing.
Based on above-mentioned mechanism, although circuit belongs to the circuit of 6, after increase picture frame speed, the corresponding effect at 8 circuit can be reached in this embodiment, there is the change of 256 GTGs.Because picture frame rate control circuits can be increased to the change of 256 GTGs, therefore picture frame rate control circuits is for the image that will show, and has the function with image procossing, with under the condition with 256 gray scale variation, revise the grey decision-making of pixel, make that there is abundanter color change.
In the present embodiment, it should be noted that aforesaid picture frame speed be not limited to embodiment lift the increase of 4 times (240Hz), other 120Hz or 480Hz also can according to being in like manner suitable for, and the resolution of GTG also in like manner can increase.And the picture frame speed of GTG multiplication is 2
l, L=1,2 ..., it therefore can be consistent with the position of GTG, and this is also all produced by frequency frequency multiplication.
But with regard to general, according to identical mechanism, other picture frame speed such as 180Hz, 360Hz etc. also can reach, and the increase of its medium frequency needs different circuit, is not only as 120Hz or 480Hz etc. can reach by frequency multiplication.180Hz and 360Hz is example, and its relative 60Hz is generation 3,6 picture frames, and the adjustment of grey decision-making is that a gray scale unit cuts to adjust with 1/3,1/6.In addition, if ash stage circuit is originally exactly 8 or more high-order resolution, it still can utilize FRC circuit, increases its greyscale resolution, and is not limited to the ash stage circuit of 6.
In other words, just general feature, FRC circuit of the present invention, according to the driving speed of driver maximum possible, can increase original picture frame speed by K multiple, K be more than or equal to 2 integer.During the picture frame that the original picture frame speed of correspondence like this determines, K picture frame can be produced to data driver.Picture frame rate control circuits is also revised an original gray-scale value of each pixel, and determines in this K picture frame, have the picture frame of a quantity to be show with the correction grey decision-making after this original gray-scale value increases a GTG, and this quantity is one of them of 0 to K-1.
Be understandable that, due to different broadcast formats, such as NTSC and PAL's is different, and its image playback rate is 50Hz, and the present invention is also applicable to the playback rate of 50Hz.
In sum, the present invention, in the application of mosaic screen, proposes a time screen with regard to data driver, only can use one or low volume data driver drives, so can avoid when image resolution rolls up, the driver of excessive number occupies the situation of usable area.In addition, the actuating speed based on data driver is accelerated, and by the process of FRC circuit, more can increase greyscale resolution, makes the change more horn of plenty of colors of image.
In the present embodiment, by increasing described original picture frame speed with K multiple, in during making a picture frame corresponding with described original picture frame speed, produce K picture frame to multiple described data driver, the original gray-scale value of picture frame rate control circuits to each pixel is revised, and in a described K picture frame, have the picture frame of a quantity to be show with the correction grey decision-making after described original gray-scale value increases a GTG, solve the technical matters that one screen that existing traditional mosaic screen causes needs the setting of greater number driver, simultaneously, avoid except area available after being covered with time screen back, and cannot the technical matters of these drivers enough accommodating by what cause, and cause the incomplete technical matters of heat radiation.
Although the present invention discloses as above with embodiment; so itself and be not used to limit the present invention; have in any art and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on the accompanying claim person of defining.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. a mosaic screen display device, is characterized in that, comprising: display screen, is spliced by multiple screens;
Multiple data driver, for driving multiple described screen respectively;
Picture frame rate control circuits, according to the original picture frame speed receiving image, increases described original picture frame speed with K multiple, in during making a picture frame corresponding with described original picture frame speed, produce K picture frame give multiple described data driver, wherein, K be more than or equal to 2 integer;
Wherein, the original gray-scale value of described picture frame rate control circuits to each pixel is revised, and in a described K picture frame, having the picture frame of a quantity to be show with the correction grey decision-making after described original gray-scale value increases a GTG, described quantity is one of them of 0 to K-1.
2. mosaic screen display device according to claim 1, is characterized in that, the value of described K is 2
l, L is natural number.
3. mosaic screen display device according to claim 2, is characterized in that, described L value is 2, described 2
lthe grey decision-making that individual picture frame entirety produces is the GTG degree to described original gray-scale value increase by 0,1/4,2/4 or 3/4;
Wherein, 0 represents that described pixel is described 2
lwhat all show in individual picture frame is described original gray-scale value;
1/4 represent described pixel this 2
lwhat have the display of 3 picture frames in individual picture frame is described original gray-scale value, and what another 1 picture frame then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
2/4 represents that described pixel is described 2
lwhat have the display of 2 picture frames in individual picture frame is described original gray-scale value, and what another 2 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
3/4 represents that described pixel is described 2
lwhat have the display of 1 picture frame in individual picture frame is described original gray-scale value, and what another 3 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value.
4. mosaic screen display device according to claim 1, is characterized in that, described mosaic screen display device also comprises:
One picture frame internal memory, described image is stored in described picture frame internal memory, and according to the combination of multiple described screen, correspondence distributes to multiple described screen.
5. mosaic screen display device according to claim 1, is characterized in that, described mosaic screen display device also comprises:
Multiple picture frame internal memory, corresponding multiple described screen is configured respectively, multiple described the screen of described image mapped, and after allocating in advance, is stored in those picture frame internal memories respectively.
6. mosaic screen display device according to claim 1, is characterized in that, described original picture frame speed is 60Hz or 50Hz, and the picture frame speed of a described K picture frame is 240Hz or 200Hz.
7. a display drive method, be used in as the mosaic screen display device in claim 1 to 6 as described in any one, described mosaic screen display device comprises display screen, multiple data driver and picture frame rate control circuits, described display screen become by multiple screen splicings, it is characterized in that, display drive method comprises:
Configure multiple described data driver, to drive multiple described screen respectively;
By described picture frame rate control circuits, according to the original picture frame speed receiving image, described original picture frame speed is increased with K multiple, in during making a picture frame corresponding with described original picture frame speed, produce K picture frame to multiple described data driver, wherein, K be more than or equal to 2 integer;
Revised by the original gray-scale value of described picture frame rate control circuits to each pixel, and in a described K picture frame, having the picture frame of a quantity to be show with the correction grey decision-making after described original gray-scale value increases a GTG, described quantity is one of them of 0 to K-1.
8. display drive method according to claim 7, is characterized in that, described K value is 2
l, L is natural number.
9. display drive method according to claim 8, is characterized in that, described L value is 2, described 2
lthe grey decision-making that individual picture frame entirety produces is the GTG degree to described original gray-scale value increase by 0,1/4,2/4 or 3/4;
Wherein, 0 represents that described pixel is described 2
lwhat all show in individual picture frame is described original gray-scale value;
1/4 represent described pixel this 2
lwhat have the display of 3 picture frames in individual picture frame is described original gray-scale value, and what another 1 picture frame then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
2/4 represents that described pixel is described 2
lwhat have the display of 2 picture frames in individual picture frame is described original gray-scale value, and what another 2 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value;
3/4 represents that described pixel is described 2
lwhat have the display of 1 picture frame in individual picture frame is described original gray-scale value, and what another 3 picture frames then showed adds the described correction grey decision-making after a GTG for described original gray-scale value.
10. display drive method according to claim 7, is characterized in that, described image is stored in described picture frame internal memory, and according to the combination of multiple described screen, correspondence distributes to multiple described screen.
11. display drive methods according to claim 7, is characterized in that, multiple described the screen of described image mapped, and after allocating in advance, are stored in multiple picture frame internal memories of corresponding multiple described screen respectively.
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