CN101415093A

CN101415093A - Image processing apparatus, image processing method and image display system

Info

Publication number: CN101415093A
Application number: CNA2008101619831A
Authority: CN
Inventors: 黑木义彦
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 2004-08-10
Filing date: 2005-06-09
Publication date: 2009-04-22
Anticipated expiration: 2025-06-09
Also published as: JP4826602B2; CN101668149B; CN101415093B; CN101668149A; JP2008268968A; CN1860521A; CN101437128A

Abstract

An image processing apparatus, image processing process and image display system for displaying moving images. The image processing apparatus includes a storage apparatus, an output controller and a display control device, wherein, if the separation number of the input video signal is, for example, n, n number of scan control sections are provided, and the frame rate of frames of output video signals respectively displayed by the first to n-th scan control sections is 1/n of the frame rate of the input video signal. The drawing start times of frames respectively scanned by the first to n-th scan control sections are shifted from one another by 1/n of the display period of one frame of the respective output video signals, so that a moving image can be displayed in sequence in a dot sequence or line sequence.

Description

Image processing equipment, image processing method and image display system

The application is to be that June 9, application number in 2005 are that 200580001091.X, name are called the dividing an application of application for a patent for invention of " display device and method " applying date.

Technical field

The present invention relates to a kind of image processing equipment, image processing method and image display system, particularly a kind of image processing equipment, image processing method and image display system that is suitable for showing moving image.

Background technology

Existence is used for the signal processing technology of image display device and the needs that Driving technique improves image quality by improvement.

Generally speaking, can improve image quality in images by resolution and level and smooth its texture that increases image.The pixel of point (point) with the expression composing images is that information content of image is expressed by unit.The pixel count of image is expressed with the number of the level of image and vertical point, and for example 800 * 600 or 1024 * 768.More particularly, pixel (point) number is many more, and image texture is just level and smooth more and amount of information composing images is just big more.

For with the high-resolution display image, (for example there is a kind of technology, refer to Patent Document 1), it is by for example using two

displays

1 and 2 so that make display 1 display image in normal monotype, and in multi-mode, make each

display

1 and 2 left side and the right-hand part of display image respectively, thereby in multi-mode, come display image to compare the high resolution of twice with the system that only uses a display.

[patent documentation 1] Japan patent applicant announce number flat-10-124024

If with the resolution display image that increases, then the amount of information of composing images increases, thereby the data volume that will be transferred to display 1 or 2 increases, and needs to improve message transmission rate.Therefore, this system construction is become each point by reducing

display

1 and 2 data volume and by signal processing carry out reduce the conversion of data, the transmission of carries out image data and do not improve message transmission rate.

In addition, especially, can be by improving the picture quality that frame rate improves moving image, wherein frame rate is the number of times that per second upgrades screen.

For example, when by using projecting apparatus with the moving image projection and when being presented on the screen, projecting apparatus is display frame image line by line by executive level scanning on basis line by line, and after having scanned all row of a picture frame, begin to scan the view data of subsequent frame, thereby show moving image.

Summary of the invention

[problem to be solved by this invention]

As mentioned above, especially, can be by improving the picture quality that frame rate improves moving image.Yet, to show and handle in order to carry out according to high frame rate, need to improve the processing speed of the drive circuit that is used to drive display unit, in addition, need to improve the reaction speed of the light quantity modulation element of determining image intensity.This method is difficult technically, and causes cost to improve.

Though can be known by improving the picture quality that frame rate improves moving image, in fact can not the relation of research between the picture quality of frame rate and moving image under the situation of raising frame rate.Therefore, not clear, whether might improve frame rate and come unlimited degree ground to improve the picture quality of moving image by unlimited degree ground.

Certainly, can not understand quantitatively in the relation between frame rate and the moving image under the situation that improves frame rate.

Therefore, the inventor notices the frame rate of digital cinema format of future generation, and has studied its necessary restriction according to visual characteristic.

Think that before this oculomotor speed of tracking that is known as level and smooth tracking is consistent with the movement velocity of sensation target.Westheimer states that eyes are with the speed motion (Westheimer, G., A.M.A.Arch.Ophthal.52, pp.932-941,1954) identical with the sensation target speed that was not higher than for 30 degree/seconds.

Yet studies have shown that of back followed the trail of oculomotor speed almost all cases less than the speed of sensation target.People such as Meyer have stated that the tracking speed of eyes approximately is 0.87 times about sensation target speed.(Meyer, people such as C.H., Vision Res.Vol.25, No.4, pp.561-563,1985).

Though Meyer reports, obtained 100 degree/seconds of maximum tracking speed limit, Meyer has stated that such tracking speed is the result who obtains from skilled tested object, and general tested object can not carry out such tracking.This experimental conditions is 80 centimetres a visible sensation distance, and this is different from the visual environment of cinema greatly.Sensation target is the hot spot that moves by galvanometer, and Meyer does not discuss the spatial frequency of sensation target.

In Japan, NHK report example (people such as Yasushi Tadokoro, the NHKTechnical Report of frame rate exist to be discussed, September (1968), pp422-426,1968), but screen height), high-high brightness 30fl (102.78cd/m the condition of this report is visible sensation distance 7H (H: ²) 14 inches monitors, and still do not consider the condition of cinema.In addition, this report is concluded, owing to bigger motion do not occur in general content, so 60Hz or higher field frequency are unnecessary.Miyahara is 14 inches monitors, visible sensation distance 4H and high-high brightness 400cd/m to the experiment condition about the dynamic vision sensitivity of oscillating vision target ²About the experiment of visual characteristic mainly is to implement under the visual environment condition such as short relatively distance and relative high brightness.

Therefore, in inventor's visual environment at the cinema, that is, and high-high brightness 40cd/m ²With visible sensation distance 5 to 15m, the dynamic space frequency characteristic of eyes has been carried out pilot study.To moving image quality research of depending on such dynamic space frequency characteristic is important, because such research causes greatly considering to be used for the conventional form of frame rate.

In this research process, in fact the inventor has studied the relation between the frame rate and moving image quality in higher frame rate, and has confirmed human visual characteristic.

The present invention proposes in view of said circumstances, and is intended to make and might under the situation that needn't improve frame rate the moving image of less deterioration be presented to the observer based on human visual system, and it is the people who watches shown moving image.

[mode that addresses this problem]

A kind of image processing equipment, being used to handle will be by the picture signal of image display demonstration, and this image processing equipment comprises: storage device is used to store the picture signal with first frame rate that provides; Output-controlling device is used for the control chart image signal to a plurality of image displays or be arranged in the output of a plurality of picture signal display processing units of image display; And display control unit, be used to control demonstration corresponding to the image of the picture signal of under the control of output-controlling device, exporting; Wherein, n image display is being provided at least or is being arranged under the situation of the display processing unit in the image display: the output of output-controlling device control chart image signal makes picture signal output to n image display or display processing unit from storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that outputs to n image display or display processing unit, makes corresponding to the image of the picture signal that outputs to n image display or display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

A kind of mode of in comprising the image processing equipment of memory cell, handling the picture signal that will show by image display, this method comprises: the storage controlled step of the picture signal that control store has first frame rate in the memory cell; The control output image signal is to a plurality of image displays or a plurality of output controlled step that is arranged in the display processing unit in the image display; And control shows the demonstration controlled step corresponding to the image of picture signal; Wherein, n image display is provided at least or is arranged under the situation of the display processing unit in the image display in existence: in the output controlled step, the output of output-controlling device control chart image signal makes picture signal output to n image display or display processing unit from storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And in showing controlled step, control is corresponding to the demonstration of the image of the picture signal that outputs to n image display or n display processing unit in output in the controlled step, makes corresponding to the image of the picture signal that outputs to n image display or n display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

A kind of image display system comprises: image processing equipment is used to handle picture signal; And image display, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: storage device is used to store the picture signal with first frame rate that provides; Output-controlling device is used for image display is arrived in control store in the picture signal of storage device output; And display control unit, be used to control by the image of image display demonstration corresponding to the picture signal of exporting by output-controlling device; Image display comprises: a plurality of image display processors, be used for providing image with dot sequency or line sequential system, and display unit, be used to show the image that provides by image display processor; At least n image display processor is provided; The output of output-controlling device control chart image signal makes picture signal output to n image display processor frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that outputs to n image display processor, makes corresponding to the image of the picture signal that outputs to n image display processor the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

A kind of image display system comprises: image processing equipment is used to handle picture signal; And a plurality of image displays, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: storage device is used to store the picture signal with first frame rate that provides; Output-controlling device is used for image display is arrived in control store in the picture signal of storage device output; And display control unit, be used to control by the image of image display demonstration corresponding to the picture signal of exporting by output-controlling device; Each image display comprises: image display processor is used for providing image with dot sequency mode or line sequential system; At least n image display is provided; The output of output-controlling device control chart image signal makes picture signal output to n image display frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that outputs to n image display, makes corresponding to the image of the picture signal that outputs to n image display the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

A kind of image processing equipment, being used to handle will be by the picture signal of image display demonstration, and this image processing equipment comprises: it is a plurality of subimage signals that separator, the picture signal with first frame rate that is used for will providing frame by frame separate; A plurality of storage devices are used to store the subimage signal by each separation of this separator output; Output-controlling device, be used for control store at each number of sub images signals of a plurality of storage devices to a plurality of image displays or be arranged in the output of a plurality of image display processing units in the image display; And display control unit, being used to control demonstration corresponding to the image of the total picture signal that forms by whole subimage letters, the output of this subimage signal is controlled by output-controlling device; Wherein, under the situation that n image display or display processing unit are provided at least: this separator separates picture signal and is n number of sub images signal; N storage device is provided; The output of output-controlling device control subimage signal makes the subimage signal output to n image display or display processing unit from separately n storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that is made of the whole subimage signals that output to n image display or display processing unit, makes corresponding to the image of the subimage signal that outputs to n image display or n display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

A kind of mode of in comprising the image processing equipment of a plurality of memory cell, handling the picture signal that will show by image display, this method comprises: the picture signal with first frame rate that will provide is frame by frame separated and is the separating step of a plurality of subimage signals; The storage controlled step of the subimage signal of each separation that control store is exported in separating step in a plurality of memory cell; Control store each number of sub images signal in memory cell is to a plurality of image displays or a plurality of output controlled step that is arranged in the output of the image display processing unit in the image display; And control is corresponding to the demonstration controlled step of the demonstration of the image of the total picture signal that is formed by whole subimages letter, and the output of this subimage signal is controlled in exporting controlled step; Wherein, under the situation that n image display or display processing unit are provided at least: in separating step, picture signal is separated and is n number of sub images signal; N storage device is provided; In the output controlled step, be controlled at storage and be stored in the output of n the subimage signal in the storage device in the controlled step, make the subimage signal output to n image display or display processing unit frame by frame with second frame rate of the 1/n that equals first frame rate from separately n storage device; And in showing controlled step, the demonstration of the image of the picture signal that control constitutes corresponding to the whole subimage signals that output to n image display or display processing unit in output in the controlled step makes corresponding to the image of the subimage signal that outputs to n image display or display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

A kind of image display system comprises: image processing equipment is used to handle picture signal; And image display, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: it is a plurality of subimage signals that separator, the picture signal with first frame rate that is used for will providing frame by frame separate; A plurality of storage devices are used to store the subimage signal by each separation of this separator output; Output-controlling device is used for a plurality of image displays are arrived in control store at each number of sub images signal of a plurality of storage devices output; And display control unit, being used to control demonstration corresponding to the image of the total picture signal that forms by whole subimage letters, the output of this subimage signal is controlled by output-controlling device; Image display comprises: a plurality of image display processors are used for providing image with dot sequency mode or line sequential system; And display unit, be used to show the image that provides by image display processor; At least n image display processor is provided; It is n number of sub images signal that this separator separates picture signal; N storage device is provided; The output of output-controlling device control subimage signal makes the subimage signal output to n image display processor from separately n storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that is made of the whole subimage signals that output to n image display processor, makes corresponding to the image of the subimage signal that outputs to n image display processor the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

A kind of image display system comprises: image processing equipment is used to handle picture signal; And a plurality of image displays, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: it is a plurality of subimage signals that separator, the picture signal with first frame rate that is used for will providing frame by frame separate; A plurality of storage devices are used to store the subimage signal by each separation of this separator output; Output-controlling device is used for a plurality of image displays are arrived in control store at each number of sub images signal of a plurality of storage devices output; And display control unit, being used to control demonstration corresponding to the image of the total picture signal that forms by whole subimage letters, the output of this subimage signal is controlled by output-controlling device; Each image display comprises: image display processor is used for providing image with dot sequency mode or line sequential system; At least n image display is provided; It is n number of sub images signal that separator separates picture signal; N storage device is provided; The output of output-controlling device control subimage signal makes the subimage signal output to n image display processor from each n storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that is made of the whole subimage signals that output to n image display processor, makes corresponding to the image of the subimage signal that outputs to n image display processor the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

First display device of the present invention is characterised in that and comprises: display control unit spare is used for control and shows, so that display unit is shown by being not less than the moving image that constitute 105 frame/seconds; And display unit, be used for showing by being not less than the moving image that constitute 105 frame/seconds, wherein in the demonstration that keeps each pixel on the screen during each frame period based on the control of display control unit spare.

Display control unit spare control shows, so that display unit is shown by being not less than the moving image that constitute 230 frame/seconds, and display unit can show by being not less than the moving image that constitute 230 frame/seconds based on the control of display control unit spare.

Display control unit spare control shows, so that display unit is shown by being not more than the moving image that constitute 480 frame/seconds, and display unit can show by being not more than the moving image that constitute 480 frame/seconds based on the control of display control unit spare.

Display control unit spare control shows, so that display unit is shown by the moving image that constitutes for 120 frame/seconds, and display unit can show the moving image that is made of 120 frame/seconds based on the control of display control unit spare.

Display control unit spare control shows, so that display unit is shown by the moving image that constitutes for 240 frame/seconds, and display unit can show the moving image that is made of 240 frame/seconds based on the control of display control unit spare.

Display control unit spare control shows, so that display unit is shown by the moving image that constitutes for 250 frame/seconds, and display unit can show the moving image that is made of 250 frame/seconds based on the control of display control unit spare.

Display control unit spare control shows, so that display unit is shown by the moving image that constitutes for 360 frame/seconds, and display unit can show the moving image that is made of 360 frame/seconds based on the control of display control unit spare.

First display packing of the present invention is a kind of display packing that is used to be equipped with the display device of display unit, wherein in display unit, in the demonstration that keeps each pixel on the screen during each frame period, and the method is characterized in that and comprise the demonstration controlled step: control shows, so that display unit is shown by being not less than the moving image that constitute 105 frame/seconds.

In showing controlled step, control shows, so that display unit is shown by being not less than the moving image that constitute 230 frame/seconds.

In showing controlled step, control shows, so that display unit is shown by being not more than the moving image that constitute 480 frame/seconds.

In showing controlled step, control shows, so that display unit is shown by the moving image that constitutes for 120 frame/seconds.

In showing controlled step, control shows, so that display unit is shown by the moving image that constitutes for 240 frame/seconds.

In showing controlled step, control shows, so that display unit is shown by the moving image that constitutes for 250 frame/seconds.

In showing controlled step, control shows, so that display unit is shown by the moving image that constitutes for 360 frame/seconds.

Second display device of the present invention is characterised in that and comprises: display control unit spare is used for control and shows, so that display unit is shown by being not less than the moving image that constitute 105 frame/seconds; And display unit, be used for based on the control of display control unit spare and show that by being not less than the moving image that constitute 105 frame/seconds, this display unit is a matrix driving.

Display control unit spare control shows, so that make display unit show by the moving image that constitutes for 360 frame/seconds, and display unit can show the moving image that is made of 360 frame/seconds based on the control of display control unit spare.

Second display packing of the present invention is the display packing of display device that is used to be equipped with the display unit of matrix driving, and it is characterized in that comprising the demonstration controlled step: control shows, so that display unit is shown by being not less than the moving image that constitute 105 frame/seconds.

In first display device according to the present invention and first display packing, control shows, so that display unit is shown by being not less than the moving image that constitute 105 frame/seconds, in this display unit, in the demonstration that keeps each pixel on the screen during each frame period.

In second display device according to the present invention and second display packing, control shows, so that the display unit of matrix driving is shown by being not less than the moving image that constitute 105 frame/seconds.

[advantage of the present invention]

As mentioned above, according to the present invention, might under the situation that needn't improve frame rate the moving image of less deterioration be presented to the observer based on human visual system, it is the people who watches shown moving image.

Description of drawings

[Fig. 1] is used to illustrate the block diagram of the first structure example of having used image display system of the present invention.

[Fig. 2] is used to illustrate the figure of the timing of incoming video signal and outputting video signal.

[Fig. 3] is used to illustrate the view of the structure example of image display device shown in Figure 1.

[Fig. 4] is used to illustrate the figure of the renewal rate of the marginal portion that is presented at the moving image on the image display device shown in Figure 3.

[Fig. 5] is used to illustrate the flow chart of the demonstration control and treatment 1 that will be carried out by image display system shown in Figure 1.

[Fig. 6] is used to illustrate the block diagram of the second structure example of having used image display system of the present invention.

[Fig. 7] is used to illustrate the flow chart of the demonstration control and treatment 2 that will be carried out by image display system shown in Figure 6.

[Fig. 8] is used to illustrate the figure of the timing of incoming video signal and outputting video signal.

[Fig. 9] shows the view of the example of the actual scene that motion object and stationary objects coexist together.

[Figure 10] is used for explanation and stares the view of (fixation) condition.

[Figure 11] is used to illustrate the view of tracking condition.

[Figure 12] is used to illustrate in tracking and the view of observer's identification during staring.

[Figure 13 A-D] is used to illustrate under image capture conditions, under display condition and the view of observer's identification under observation condition.

[Figure 14] is used to illustrate the view of stroboscopic artifact (strobe artifact).

[Figure 15 A-D] is used to illustrate under image capture conditions, under display condition and under observation condition the view with observer's identification of high frame rate.

[Figure 16] is used for the view of explanation according to the result of shake (jerkiness) evaluation and test moving image quality.

[Figure 17] is used to illustrate the view according to the result of motion blur evaluation and test moving image quality.

[Figure 18] is used to illustrate the view of the structure example of projecting apparatus and screen, and wherein n is the number except that 2.

[Figure 19] is used to illustrate the view of the timing of incoming video signal and outputting video signal, wherein m=240 and n=4.

[Figure 20] is used to illustrate the view of the timing of incoming video signal and outputting video signal, wherein m=250 and n=5.

[Figure 21] is used to illustrate the figure of the structure of the image display system 101 that uses LCD.

[label description]

1... image display system, 11... image signal conversion device, 12... image display device, 21...A/D conversion portion, 22... synchronization signal detection part, 23... frame memory, 24... controller, 25...D/A conversion portion, 27... display control section, 41... scan control part, 43... the display part, 71... image display system, 81... picture signal conversion portion, 91... data separating part, 92... data are preserved part, 94... controller, 93... frame memory, 101... image display system, 111... signal processing, 112... clock/sampling pulse generating portion, 113... image display device, 121...Y/C separation/chroma decoding part, 122...A/D conversion portion, 124... synchronization signal detection part, 125... control signal generating portion, 131...LCD, 133-1 is to the 133-4... data line drive circuit, 134... select lines drive part, 141... liquid crystal cell, 142...TFT, the 143... capacitor.

Embodiment

Below with reference to the accompanying drawings embodiments of the invention are described.

Fig. 1 is the block diagram that the structure of having used image display system 1 of the present invention is shown.Image display system 1 comprises image signal conversion device 11 and image display device 12.Image display system 1 is configured to, and provides and the corresponding analog picture signal of moving image to it, handles picture signal in image signal conversion device 11, and the picture signal after will handling offers image display device 12, so that show this moving image.

The analog picture signal that offers image signal conversion device 11 is offered A/D conversion portion 21 and synchronization signal detection part 22.

The analog picture signal that A/D conversion portion 21 will have frame rate m converts data image signal to, and data image signal is offered frame memory 23.Synchronization signal detection part 22 is from the frame rate and the Dot Clock of picture signal detected image signal, and generation vertical synchronizing signal and Dot Clock signal, and vertical synchronizing signal and Dot Clock signal are offered controller 24.Dot Clock is the inverse of time of showing that on display point is required.

Controller 24 is provided to the vertical synchronizing signal and the Dot Clock signal of motor synchronizing input part 22, and control is from the vision signal output of frame memory 23, and the information that will be associated with the vision signal output from frame memory 23 offers display control section 27.Frame memory 23 outputs to D/A conversion portion 25-1 or D/A conversion portion 25-2 based on the control of controller 24 with the data image signal that is provided.

Be described in the vision signal input and output of frame memory 23 under the control of controller 24 below with reference to Fig. 2.

Suppose that m represents to be input to the frame rate of the incoming video signal S1 of frame memory 23.Also supposition be input in proper order the frame of frame memory 23 be α frame, α+1 frame, α+2 frames ....When with α frame and α+when 1 frame sequential is input to frame memory 23, controller 24 control frame memories 23, so that 1/2 frame rate with the frame rate that equals incoming video signal S1, the α frame is outputed to D/A conversion portion 25-1 as outputting video signal S2, and so that from the α frame provide that time started a postpones 1/m time started b is provided, α+1 frame is outputed to D/A conversion portion 25-2 as outputting video signal S3.

It is 2/m that the α frame is provided to the time cycle that D/A conversion portion 25-1 adopted, and provides concluding time c to provide time started b late 1/m than α+1 frame to D/A conversion portion 25-2.After α+1 frame, α+2 frames and α+3 frame sequentials are input to frame memory 23, and controller 24 control frame memories 23, so that with providing mutually continuously (promptly of α frame, providing time c), 1/2 frame rate with the frame rate that equals incoming video signal S1 offers D/A conversion portion 25 with α+2 frames as outputting video signal S2.Similarly, controller 24 from α+2 frames provide time started c to postpone 1/m and equal α+1 frame concluding time is provided time started d is provided, α+3 frames are offered D/A conversion portion 25-2 as outputting video signal S3.

The timing offset that provides between outputting video signal S2 and the outputting video signal S3 is determined by the vertical synchronizing signal of incoming video signal S1.More particularly, as shown in Figure 2, the time period between the time started f of providing that time started a and outputting video signal S3 are provided of outputting video signal S2 equals the frame period of incoming video signal S1.Based on the vertical synchronizing signal that provides from synchronization signal detection part 22, controller 24 control outputting video signal S2 provide regularly to D/A conversion portion 25, and outputting video signal S3 providing regularly to D/A conversion portion 25-2.

Therefore, controller 24 control frame memories 23, so that 1/2 frame rate m/2 with the frame rate m that equals incoming video signal S1, on basis frame by frame alternately, respectively outputting video signal S2 and outputting video signal S3 are offered D/A conversion portion 25-1 and D/A conversion portion 25-2, wherein take such mode, promptly the time started that provides that each frame of time started with respect to another is provided of each frame of one of outputting video signal S2 and S3 is offset half (1/m) that a frame of being exported provides the time (2/m).

Get back to the explanation of image display system shown in Figure 11.

D/A conversion portion 25-1 converts the data image signal that is provided to analog picture signal, and analog picture signal is offered the scan control part 41-1 of image display device 12.D/A conversion portion 25-2 converts the data image signal that is provided to analog picture signal, and analog picture signal is offered the scan control part 41-2 of image display device 12.

Based on the information that slave controller 24 provides, the moving image of display control section 27 control image display devices 12 shows, so as with top with reference to figure 2 described similar timings, show and outputting video signal S2 and the corresponding two field picture of S3.

As above described with reference to figure 2, the frame rate of each among outputting video signal S2 and the outputting video signal S3 equal incoming video signal S1 frame rate 1/2.More particularly, the Dot Clock of each among outputting video signal S2 and the outputting video signal S3 equal incoming video signal S1 Dot Clock 1/2.Based on information from the output of the vision signal of frame memory 23 is associated and slave controller 24 provides, display control section 27 is carried out control, so as the Dot Clock that the outputting video signal S2 that is presented on the image display device 12 and each the Dot Clock among the outputting video signal S3 is become equal incoming video signal S1 1/2.

When needing, driver 28 can be connected to controller 24.Disk 31, CD 32, magneto optical disk 33 or semiconductor memory 34 are installed in the driver 28, so that transmit and reception information.

Image display device 12 is provided two row analog video signals by image signal conversion device 11 conversions, and by using scan control part 41-1 and scan control part 41-2, moving image is presented on the display part 43 based on the control of display control section 27.

Scan control part 41-1 is provided the corresponding analog video signal with outputting video signal S2, wherein, is as above reading this analog video signal with reference to figure 2 described timings from frame memory 23, and is converting thereof into analog signal by D/A conversion portion 25-1.Similarly, scan control part 41-2 is provided the corresponding analog video signal with outputting video signal S3, wherein, as above reading this analog video signal from frame memory 23, and converting thereof into analog signal by D/A conversion portion 25-2 with reference to figure 2 described timings.

Scan control part 41-1 and scan control part 41-2 be by dot sequency or row sequential scanning method, and separately the analog video signal that is provided is presented on the display part 43.At this moment, scan control part 41-1 and scan control part 41-2 can be by alternately scanning successive frame, the scanning time started of the scanning time started that makes each successive frame simultaneously with respect to subsequent frame is offset 1/2 frame, thereby with the frame rate of the twice of the frame rate of the independent carries out image drawing of scan control part 41-1 or scan control part 41-2, carries out image shows on display part 43.

Image display device 12 not only can be configured to single assembly, and can be configured to the image display system that is made of multiple arrangement.If image display device 12 is configured to image display system, then for instance, as shown in Figure 3, this image display system can be made of projecting apparatus 51-1, projecting apparatus 51-2 and screen 52.

Below with reference to example shown in Figure 3, that use projecting apparatus 51-1, projecting apparatus 51-2 and screen 52, the concrete operations of image display device 12 are described.Projecting apparatus 51-1 is corresponding to the scan control part 41-1 among Fig. 1, and projecting apparatus 51-2 is corresponding to the scan control part 41-2 among Fig. 1, and screen 52 is corresponding to the display part among Fig. 1 43.

For example, projecting apparatus 51-1 is provided the corresponding analog video signal with outputting video signal S2, wherein, is as above reading this vision signal with reference to figure 2 described timings from frame memory 23, and is converting thereof into analog signal by D/A conversion portion 25-1.Similarly, projecting apparatus 51-2 is provided the corresponding analog video signal with outputting video signal S3, wherein, is as above reading this vision signal with reference to figure 2 described timings from frame memory 23, and is converting thereof into analog signal by D/A conversion portion 25-2.

In timing based on the control of display control section 27, among projecting apparatus 51-1 and the projecting apparatus 51-2 each is by (X is Y)=(0,0) to pixel (X from pixel, Y)=(p, q) scan screen 52 in the horizontal direction, show and the corresponding two field picture of vision signal that is provided, wherein from pixel (X, Y)=(0,0) to pixel (X, Y)=(p, q) scope forms the image that will be shown.Frame rate by the two field picture of each demonstration among projecting apparatus 51-1 and the projecting apparatus 51-2 is m/2.As top situation with reference to figure 2 described outputting video signal S2 and outputting video signal S3, by scanning time started of each frame of a demonstration among projecting apparatus 51-1 and the 51-2 with respect to a display frame skew 1/2 that provides by another, and the phase difference between its scanning is 1/m.

For example, when on the projecting apparatus 51-2 scanning screen 52 with the row of representing by scanning B on α+corresponding row of 1 frame, on the projecting apparatus 51-1 scanning screen 52 with the row of representing by scan A on α+corresponding row of 2 frames.By the row represented of scanning B is 1/2 row with respect to the line number of a frame of line displacement of being represented by scan A.More particularly, with the time interval of 1/m, alternately rewrite the moving image that is presented on the screen 52 by scan A and scanning B.

For example, if the frame rate of the display image of each output from projecting apparatus 51-1 and projecting apparatus 51-2 is 150Hz, the frame rate that then is presented at the moving image on the screen becomes 300Hz in fact.

In addition, for prevent by scan A and scanning among the B corresponding one deviation takes place between the scan line that same position forms, might be by using and being used for the image optical position correction similar techniques that traditional what is called becomes dual-stack (twin stack) technology, the scanning position of correction pixels.Becoming the dual-stack technology is a kind ofly can show that in the identical time and in same position identical image shows the technology of bright image by using two projecting apparatus.When using into the dual-stack technology and come display image, the brightness of shown image becomes the twice height, thereby even under the situation of bright light environments or long projector distance, also can realize projection clearly.

Become the use of dual-stack technology to cause such problem, promptly owing to the deviation between the location of pixels of two projected images take place image blurring, but the so-called picture offset functions of location of pixels that can finely tune the optical projection image is widely with solving such problem.According to the picture offset functions, can make from the picture position of two projecting apparatus projections accurately consistent with each other.

The technology of the deviation between the location of pixels of two projected images of a kind of correction for example, is disclosed in the flat 10-058291 of Japanese patent application No..

By adjusting image display device 12, be not more than a pixel (point or a pixel) so that become by the deviation between scan A and the scan line that forms of scanning B, image display device 12 becomes and can show moving image, and can be owing to the image of mutual skew one frame overlapping causes image blurring.

As mentioned above, at projecting apparatus 51-1 and the projecting apparatus 51-2 two field picture of on basis frame by frame, alternately painting, make simultaneously under the situation of each two field picture with respect to subsequent frame image shift 1/2 frame, by the scanning of the image of one in the projecting apparatus frame that begins to be used to paint early than finish by another projecting apparatus scanning and drawing at previous frame.At this moment, when the object C on the screen 52 that is presented at Fig. 3 was shown as for example from left to right moving on display screen, the user of the level and smooth observed moving image of the motion of marginal portion β was felt as the level and smooth of shown image.

The demonstration of the marginal portion β of object C on the screen 52 is described below with reference to Fig. 4.

Show the object C of α frame by projecting apparatus 51-1, and after the cycle of second, show the object C of α+1 frame by projecting apparatus 51-2 at 1/m.After cycle, rewrite the position of the marginal portion β of object C at this moment at the 1/m that shows from the α frame.Then, after the cycle, show the object C of α+2 frames at 1/m by projecting apparatus 51-1.After cycle, rewrite the marginal portion β of object C at the 1/m that shows from α+1 frame.

For example, when the frame rate of the display image of each output from projecting apparatus 51-1 and projecting apparatus 51-2 is 150Hz,, rewrite the frame of the moving image that shows by each the independent projecting apparatus among projecting apparatus 51-1 and the projecting apparatus 51-2 with the interval of 1/150 (second).Yet, refreshing the marginal portion β of object C with the interval of 1/300 (second), it is by by means of projecting apparatus 51-1 and projecting apparatus 51-2 display frame image alternately on basis frame by frame, and is displayed on the screen 52.Therefore, the motion of the marginal portion β of the object C that is observed by the user becomes very level and smooth.

Image display device 12 has been described to, and it is formed at the demonstration of control chart picture under the control of display control unit 27.Yet, in order to control as above with reference to the operation of figure 3 as described projecting apparatus 51-1 of example and projecting apparatus 51-2, image display device 12 can have display control section 27 in inside, so that be provided to self-controller 24, show required control signal for image, perhaps can have the control section that is different from display control section 27, so that be provided to vertical synchronizing signal and Dot Clock signal from display control section 27 in inside.

The operation of image display device 12 has been narrated with reference to the projection display system that is made of projecting apparatus 51-1, projecting apparatus 51-2 and screen 52 in top illustrative ground.Yet, image display device 12 can use any other can come the display system of pictorial image by dot sequency or line sequential method, as long as this display system can make two display unit alternately scan successive frame with the skew of 1/2 frame, and carry out the demonstration of moving image with the high frame rate of twice of the frame rate of each the independent display unit in two display unit, get final product.

Image display device 12 can use the device by dot sequency or line sequential method carries out image drawing, for example uses direct viewing type display or the projecting apparatus of CRT (cathode ray tube), LCD (LCD), GLV (grating light valve), LED (light-emitting diode) or FED (Field Emission Display).

For example, GLV is to use the image display technology of micro stripline array (micro ribbon array), and wherein the micro stripline array is to be used for by using optical diffraction to be used for controlling the projection arrangement of direction of light, color etc.The micro stripline array comprises miniature light diffraction device by rows, and GLV is by coming laser radiation to the micro stripline array the projection of carries out image.Can drive band (ribbon) independently by the signal of telecommunication, and can regulate the driving amount of each band,, and produce bright and dark in the image by means of the difference between each band so that change the optical diffraction amount.Therefore, GLV can realize that level and smooth gray scale represents and high-contrast.

LED is the device that is formed by two kinds of semi-conductive joints, and can be luminous when applying electric current.

FED is the device that can obtain image by the emission principle that is similar to CRT, and it comes luminous by the fluorescent material that takes out electronics from negative electrode and electron collision is covered on the anode.Yet the negative electrode of CRT has the structure of using the point-like electron source, and the negative electrode of FED has the structure of using the plane electronics source.

Will be below with reference to flow chart description shown in Figure 5 by the demonstration control and treatment 1 of image display system shown in Figure 11 execution.

At step S1, synchronization signal detection part 22 detects synchronizing signal and Dot Clock from the analog video signal that is provided, and vertical synchronizing signal and Dot Clock signal are offered controller 24.

At step S2, A/D conversion portion 21 is provided by the A/D conversion of the analog video signal that is provided, and digital video signal is offered frame memory 23.

At step S3, frame memory 23 sequentially is provided by the digital video signal that is provided.

At step S4, as above described with reference to figure 2, control according to controller 24, frame memory 23 with its speed be half the corresponding frame rate of output point clock of the speed of incoming video signal S1, on basis frame by frame, alternately vision signal is outputed to two D/A conversion portion 25-1 and 25-2, half of simultaneously that each frame is required with respect to frame of subsequent frame skew demonstration scan period.The vision signal that outputs to D/A conversion portion 25-1 is outputting video signal S2, and the vision signal that outputs to D/A conversion portion 25-2 is outputting video signal S3.

In other words, controller 24 control frame memories 23, so that the frame that will be stored in the frame memory 23 is separated into odd-numbered frame and even frame, and make in the odd and even number frame each show half cycle of scan period that frame is required with respect to subsequent frame skew, so that alternately these frames are outputed to D/A conversion portion 25-1 and D/A conversion portion 25-2.

At step S5, the D/A conversion of the vision signal that provides is provided for D/A conversion portion 25-1 and D/A conversion portion 25-2, and analog video signal is offered image display device 12.

At step S6, display control section 27 with top situation with reference to figure 2 described outputting video signal S2 and outputting video signal S3 under the similar timing of timing used, the scan control part 41-1 of control image display device 12 and scan control part 41-2 are (in Fig. 3, projecting apparatus 51-1 and projecting apparatus 51-2), and the cycle of half of the scan period that the scanning time started that makes each frame is required with respect to frame of scanning time started skew demonstration of subsequent frame, thereby on basis frame by frame, each frame of scan video signal alternately, so that with each the high frame rate of display of twice basically of frame rate among scan control part 41-1 and the scan control part 41-2, video image is presented on the display part 43 (in Fig. 3, screen 52).Display control section 27 is controlled image display device 12 by this way, and finishes processing.

By above-mentioned processing, the moving image that will be shown is separated into the odd and even number frame, and the odd and even number frame is offered two display unit respectively.Then, each display unit with the frame rate of the moving image that will be shown half frame rate, with the shifted scanning odd and even number frame of 1/2 frame, so that can high frame rate show moving image with the twice of display unit ability.

In addition,,, might clearly illustrate moving image, and not have owing to overlapping cause image blurring that is offset the image of a frame mutually so that position deviation is not more than a point (pixel) by adjusting the position accuracy that scans of two scan lines.

In addition, if each among projecting apparatus 51-1 and the projecting apparatus 51-2 is so-called liquid crystal projection apparatus, then can provide shutter (shutter) in the front of the projecting lens of projecting apparatus 51-1, for example, in Fig. 2, providing the time started that time started a is provided and providing between the time started b, time started c is being provided and is providing between the time started d, and time started e is being provided and is providing between the time started f, this shutter is by being used to show the light by the image of projecting apparatus 51-1 projection, and in Fig. 2, time started b is being provided and is providing between the time started c, and time started d is provided and provides between the time started e, this shutter stops the light that is used to show by the image of projecting apparatus 51-1 projection.In addition, can provide shutter in the front of the projecting lens of projecting apparatus 51-2, for example, in Fig. 2, time started b is being provided and is providing between the time started c and time started d is being provided and provides between the time started e, this shutter is by being used to show the light by the image of projecting apparatus 51-2 projection, and in Fig. 2, time started a being provided and providing between the time started b, time started c is being provided and provides between the time started d and time started e is being provided and provides between the time started f, stop the light that is used to show by the image of projecting apparatus 51-2 projection.

More particularly, in the shutter transmission that provides previously of the projecting lens of projecting apparatus 51-1 or stop the light that is used to show by the image of projecting apparatus 51-1 projection, so that show all the α frame synchronous, α+2 frames, α+4 frames with incoming video signal S1 shown in Figure 2 ..., that is only synchronous (α+2 * n) frames (n is an integer), with incoming video signal S1.In the shutter transmission that provides previously of the projecting lens of projecting apparatus 51-2 or stop the light that is used to show by the image of projecting apparatus 51-2 projection, so that all synchronous with incoming video signal S1 shown in Figure 2 demonstration α+1 frame, α+3 frames ..., that is only synchronous (α+2 * n+1) frames (n is an integer), with incoming video signal S1.

In addition, each in the shutter can be liquid crystal shutter or mechanical shutter, and only needs and can transmit or stop light with time interval of predetermined period.

In addition, can in projecting apparatus 51-1 or projecting apparatus 51-2, for example, between light source and liquid-crystal apparatus or in the back of liquid-crystal apparatus, provide each in the shutter.

Fig. 6 illustrates the block diagram of structure of having used the present invention and having had the image display system 71 of the structure different with image display system shown in Figure 11.

Same numeral is used for representing and corresponding part shown in Figure 1, and omits the description of same section.

Image display system 71 shown in Figure 6 makes and is similar in image display system shown in Figure 11 image display device 12 that uses and shows moving images, but by using the image signal conversion device 81 different with image signal conversion device shown in Figure 1 11 to come the converted image signal.

The analog picture signal that offers image signal conversion device 81 is offered A/D conversion portion 21 and synchronization signal detection part 22.

The analog picture signal that A/D conversion portion 21 will have frame rate m converts data image signal to, and data image signal is offered data separating part 91.Synchronization signal detection part 22 is from the frame rate and the Dot Clock of picture signal detected image signal, and generate vertical synchronizing signal and Dot Clock signal, and vertical synchronizing signal and Dot Clock signal are offered data separating part 91, data preservation part 92-1, data preservation part 92-2 and controller 94.

Based on the vertical synchronizing signal that provides from synchronization signal detection part 22, data separating part 91 is separated into individual frames with the data image signal that is provided, and on basis frame by frame, frame is alternately offered data preserve part 92-1 or data preservation part 92-2.For example, data separating part 91 offers data with odd-numbered frame and preserves part 92-1, and even frame is offered data preservation part 92-2.

Data are preserved part 92-1 as the interface between data separating part 91 and the frame memory 93-1, and data are preserved part 92-2 as the interface between data separating part 91 and the frame memory 93-2.Data are preserved among part 92-1 and the 92-1 each based on the vertical synchronizing signal that provides from synchronization signal detection part 22, and frame memory 93-1 or frame memory 93-2 on basis frame by frame the picture signal that is provided are provided.

Controller 94 is provided to the vertical synchronizing signal and the Dot Clock signal of motor synchronizing input part 22, and the output of the vision signal of control frame memory 93-1 and frame memory 93-2 regularly.

Frame memory 93-1 offers D/A conversion portion 25-1 based on the control of controller 94 with vision signal.Frame memory 93-2 offers D/A conversion portion 25-2 based on the control of controller 94 with vision signal.

If in this supposition, the signal that offers data separating part 91 is incoming video signal S1, from the signal of frame memory 93-1 output is outputting video signal S2, and from the signal of frame memory 93-2 output is outputting video signal S3, and then the input-output relation object between these signals is described with reference to figure 2 above being similar to.

Fig. 2 does not have to consider the signal delay that caused by the data separating processing in the data separating part 91 etc., but controller 94 can be adapted to the signal output timing of for example preserving part 92-1 and data preservation part 92-2 by means of data, adjusts the delay of signal and the timing offset between the two row vision signals.

D/A conversion portion 25-1 converts the data image signal that is provided to analog picture signal, and analog picture signal is offered image display device 12.D/A conversion portion 25-2 converts the data image signal that is provided to analog picture signal, and analog picture signal is offered image display device 12.

The information that display control section 27 provides based on slave controller 94, moving image on the control image display device 12 shows, and with top with reference to figure 2 described similar timings, show and outputting video signal S2 and the corresponding two field picture of outputting video signal S3.

When needing, driver 28 can be connected to controller 24.Disk 31, CD 32, magneto optical disk 33 or semiconductor memory 34 are installed on the driver 28, so that transmit and reception information.

Below with reference to flow chart shown in Figure 7, description will be by the demonstration control and treatment 1 of image display system shown in Figure 6 66 execution.

At step S21, synchronization signal detection part 22 detects synchronizing signal and Dot Clock from the analog picture signal that is provided, and vertical synchronizing signal and Dot Clock signal are offered data separating part 91, data preservation part 92-1, data preservation part 92-2 and controller 94.

At step S22, A/D conversion portion 21 is provided by the A/D conversion of the analog video signal that is provided, and digital video signal is offered data separating part 91.

At step S23, based on the vertical synchronizing signal that provides from synchronization signal detection part 22, data separating part 91 is separated into individual frames with the analog video signal that is provided, and on basis frame by frame, frame is offered alternately data are preserved part 92-1 or data are preserved part 92-2.For example, data separating part 91 offers data with odd-numbered frame and preserves part 92-1, and even frame is offered data preservation part 92-2.

At step S24, each among data preservation part 92-1 and the data preservation part 92-2 offers frame memory 93-1 or frame memory 93-2 with the vision signal that is provided, and the vision signal that frame memory 93-1 or frame memory 93-2 storage are provided.

At step S25, controller 94 control frame memory 93-1 and frame memory 93-2, so that with half the corresponding frame rate of output point clock of the Dot Clock that equals incoming video signal S1, on basis frame by frame, alternately a frame with vision signal outputs to D/A conversion portion 25-1 and outputs to D/A conversion portion 25-2 from frame memory 93-2 from frame memory 93-1, makes each frame show half cycle of scan period that frame is required with respect to subsequent frame skew simultaneously.More particularly, if in this supposition, the signal that offers data separating part 91 is incoming video signal S1, from the signal of frame memory 93-1 output is outputting video signal S2, and from the signal of frame memory 93-2 output is outputting video signal S3, and then the input-output relation object between these signals is described with reference to figure 2 above being similar to.

At step S26, each among D/A conversion portion 25-1 and the D/A conversion portion 25-2 is provided by the D/A conversion of the vision signal that provides, and analog video signal is offered image display device 12.

At step S27, display control section 27 with top situation with reference to figure 2 described outputting video signal S2 and outputting video signal S3 under the similar timing of timing used, the scan control part 41-1 of control image display device 12 and scan control part 41-2 are (in Fig. 3, projecting apparatus 51-1 and projecting apparatus 51-2), and the cycle of half of the scan period that the scanning time started that makes each frame is required with respect to frame of scanning time started skew demonstration of subsequent frame, thereby each frame of scan video signal alternately on basis frame by frame, so that with each the high frame rate of display of twice basically of frame rate among scan control part 41-1 and the scan control part 41-2, video image is presented on the display part 43 (in Fig. 3, screen 52).Display control section 27 is controlled image display device 12 by this way, and finishes processing.

Even in image display system shown in Figure 6 71, situation as image display system shown in Figure 1, by above-mentioned processing, the moving image that will be shown is separated into the odd and even number frame, and the odd and even number frame is offered two display unit respectively, that is, scan control part 41-1 and scan control part 41-2.Then, each display unit with the frame rate of the moving image that will be shown half frame rate, with the shifted scanning two field picture of 1/2 frame, so that can high frame rate show moving image with the twice basically of display unit ability.

In the above in the description to the embodiment of the invention, with reference to such situation, two row picture signals wherein the picture signal that is provided are provided into, and by two scan control part pictorial image, but the separation number of picture signal can be any number of two that is not less than.

If the separation number of picture signal for example is three, then will sequentially offer three D/A conversion portions, perhaps will partly be separated into three frame and sequentially offer three frame memories respectively and be stored in wherein by data separating from the picture signal of frame memory output.Like this, as shown in Figure 8, incoming video signal S1 is separated into three outputting video signal S2, S3 and S4, and these three outputting video signal S2, S3 and S4 are offered three scan control parts respectively.

First scan control partly control α frame, α+3 frames, α+6 frames ... demonstration, all these frames are corresponding to outputting video signal S2.Second scan control partly control α+1 frame, α+4 frames, α+7 frames ... demonstration, all these frames are corresponding to outputting video signal S3.The 3rd scan control partly control α+2 frames, α+5 frames, α+8 frames ... demonstration, all these frames are corresponding to outputting video signal S4.Respectively the frame rate of the frame of the outputting video signal that partly shows by first scan control part, second scan control part and the 3rd scan control be incoming video signal frame rate 1/3, and the scanning time started of the frame that partly scans by first scan control part, second scan control part and the 3rd scan control respectively mutually skew show 1/3 of scan period that a frame of outputting video signal S2 each in the S4 is required.

If incoming video signal S1 for example is 180Hz, then incoming video signal S1 is separated into three outputting video signal S2, S3 and S4, and these three outputting video signal S2, S3 and S4 are offered three scan control parts respectively, and by each scan control part with the frame rate of 60Hz as outputting video signal scanning and show it.If incoming video signal S1 for example is 150Hz, then incoming video signal S1 is separated into three outputting video signal S2, S3 and S4, and these three outputting video signal S2, S3 and S4 are offered three scan control parts respectively, and by each scan control part with the frame rate of 50Hz as outputting video signal scanning and show it.By this way, can adopt the scan control part of widely-used type at present, its can with 50Hz (PAL: phase-aoternation line system) or 60Hz (NTSC: national television system committee or HD (high definition) vision signal) so that show moving image with much higher frame rate.

Though the NTSC frame rate more correctly was 59.94 frame/seconds,, NTSC frame rate mentioned herein was defined as for 60 frame/seconds according to those skilled in the art's convention.Similarly, 59.94 multiple is called 60 multiple.More particularly, be called 60,120,180,240,300,360,420 and 480 at this respectively with 59.94,119.88,179.82,239.76,299.70,359.64,418.58 and 479.52.

Therefore,, then provide n scan control part, and be the 1/n of the frame rate of incoming video signal by the frame rate of the frame of first outputting video signal that partly shows to n scan control respectively if the separation number of incoming video signal for example is n.Be offset the 1/n of display cycle of a frame of outputting video signal separately respectively mutually by drawing time started of first frame that partly scans to n scan control, thereby show individually that with in the scan control part each situation of moving image compares, can show moving image with the frame rate that n is doubly high basically.

In addition, the number of scan control part can be arranged to s, and the separation number of vision signal can be arranged to n, so that by using s n scan control section in the middle of the scan control part to assign to show moving image less than s.

In the description of carrying out in conjunction with Fig. 1 and Fig. 6, with reference to image display system, wherein each is made of image signal conversion device and image display device in the above, still, certainly, in the element each can be embodied as single assembly.

Supposition based on controller 24 control frame memories 23 and display control section 27 control image display devices 12, image signal conversion device shown in Figure 1 11 has been described, based on the supposition of controller 94 control frame memory 93-1 and frame memory 93-2 and display control section 27 control image display devices 12, image signal conversion device shown in Figure 6 81 has been described simultaneously.Yet, the image display device that can be used for the frame memory of stored video signal and be used for display image by identical controller control.Display control section 27 can be provided in image display device 12 not in image

signal conversion device

11 or 81.

Moving image is with the peculiar deterioration in image quality that does not appear in the rest image.In display present the most widely-used type, 50Hz (PAL) and 60Hz (NTSC and HD vision signal), reproduction on time orientation is defective, and under given conditions, this defective on the time orientation is converted into the defective on the direction in space.Therefore, for example, move the image quality in images deterioration owing to be used for obtaining the shutter cycle of motion image data, the emission cycle of the display unit during showing moving image and individual's sighting condition.

Fig. 9 shows the example of the actual scene that stationary objects and motion object coexist together.This scene assumed vehicle moves right, and tree fixes on the ground.Figure 10 and 11 shows the observer's who observes scene shown in Figure 9 identification.

Figure 10 is the view that the observer's who watches (gaze) tree attentively video image identification is shown.In this case, the automobile that moves right is dim visible for the observer.Figure 11 is the view that the observer's who watches automobile attentively video image identification is shown.In this case, static tree is dim visible for the observer.

In the following description, the situation that the observer is fixed on his/her sight line on the fixed object of viewing plane coordinate is known as the condition of staring, and the observer makes the situation of the motion object of eye tracking viewing plane coordinate be known as tracking condition.More particularly, in conjunction with the described situation of Figure 10 corresponding to the condition of staring, and in conjunction with the described situation of Figure 11 corresponding to tracking condition.Under condition of staring and tracking condition, by the observer watch attentively to as if clearly visible, and about the relative position of being watched attentively object change dim visible to liking.

Such reason is that human vision property has comprehensively (integrate) incides the light on the retina in specific period function.The object that moves on the retina coordinate of eyes has shown position change comprehensive on time orientation, thereby feels motion to liking fuzzy image.The movement velocity of being somebody's turn to do on fuzzy and the retina coordinate is proportional.Movement velocity on the retina coordinate do not correspond to object actual speed and corresponding to its angular speed (degree/second).

As mentioned above, on the retina coordinate static to as if clearly visible, and on the retina coordinate, move to as if dim visible.In order to show moving image with verisimilitude, that is, look like the high quality motion picture of smooth motion, with such corresponding to video image of actual identification be important.

Describe top with reference to the described observer's identification of Figure 10 and top with reference to the difference between the described observation identification of Figure 11 below with reference to Figure 12.The top of Figure 12 shows the actual motion in the external world.Longitudinal axis express time axle, and transverse axis is represented horizontal direction, and the top of Figure 12 shows at fixing point (corresponding to the tree among Fig. 9 to 11, and in Figure 12, represent with x) and the point of uniform motion (corresponding to the automobile among Fig. 9 to 11, and in Figure 12, represent with y) be present in the scene in the external world, point is in the position of each time.The bottom of Figure 12 shows during staring and following the tracks of the observer to the identification of the motion in the external world.Arrow shown in broken lines is represented the motion of observer's viewpoint, that is, and and the direction of comprehensive video image on retina.The arrow of Yan Shening comprehensive direction during being illustrated in and staring, and the arrow that in an inclined direction extends in vertical direction is illustrated in comprehensive direction during the tracking.More particularly, when the observer followed the tracks of, fixing point (tree) was dim visible, but motor point (automobile) is clearly visible.On the other hand, when the observer stared, fixing point (tree) was clearly visible, but motor point (automobile) is dim visible.

Below will be according to image capture conditions, display condition and observation condition, be described with reference to Figure 13 when the motion of catching by the still image catching method as moving-image reproducing, the observer is to the identification of the motion in the external world shown in Figure 9.The top of Figure 13 shows the time variation that moving image shows.The bottom of Figure 13 as observer's identification show stare and follow the tracks of during the result that promptly obtains by the light that comprehensively shows on the direction of comprehensive axle of the sight line direction of motion as moving image.

Figure 13 A shows the identification of observer under by the situation of the image opening that shutter (open shutter) technology is caught and shown by the impulse type display.Figure 13 B shows the identification of observer under by the situation of the image opening that fast gate technique is caught and shown by maintenance (hold-type) display.Figure 13 C shows the identification of observer under the situation of the image of catching by the high-speed shutter technology and being shown by the impulse type display.Figure 13 D shows the identification of observer under the situation of the image of catching by the high-speed shutter technology and being shown by the maintenance display.

Maintenance is meant at the display type that keeps the demonstration of each pixel on the screen during each frame period as used herein, and the maintenance display for example is LCD.Use the display unit of LED or use the display unit of EL (electroluminescence) can be used as the maintenance display.

The impulse type display for example is CRT or FED.

In addition, display not only is classified into maintenance (maintenance) and impulse type, but also (for example be classified into the pixel type display, use the display of LCD or LED and the display of use EL) and so-called matrix driving display, wherein in the pixel type display, element is arranged in respectively in each pixel, and so-called matrix driving display is that unit is arranged in the upright position on the screen and is drivings such as the unit voltage that is arranged in the horizontal level on the screen, electric current with the predetermined length by being applied to separately with the predetermined length.

From Figure 13 A to 13D as can be seen, the moving image quality deterioration is different under different conditions.For example, with in Figure 13 or 13C by tracking the identification of observed motion object compare, in Figure 13 B and 13D by following the tracks of observed motion to as if dim visible.This phenomenon is known as ＂ motion blur ＂, and it is that the display of operating under the maintenance launching condition is peculiar.＂ motion blur ＂ is occur in the object that the observer is watching attentively fuzzy, and is the deterioration that the observer feels easily.

In addition, occur such as such deterioration, promptly in Fig. 3 D owing to stare stroboscopic artifact (shake) that causes and the stroboscopic artifact that in Figure 13 A and 13C, causes owing to tracking.The stroboscopic artifact is meant such moving image deterioration, it makes the observer see a plurality of copies of motion object (such as automobile) simultaneously, perhaps as shown in figure 14, when the observer stare on the display fixed object (for example, tree) time, as if it is the same to see that the motion object is carrying out rough discrete motion.Therefore, under many circumstances, the stroboscopic artifact that occurs in by the motion object stared and tracked fixed object is the deterioration that occurs in the part different with the object of just being watched attentively, and compares with ＂ motion blur ＂ and not to be very remarkable.Yet, when sight line is not when following the tracks of fully, is watched attentively relation between object and the sight line and become and be same as motion object during staring and the relation between the sight line, fixed object during perhaps following the tracks of and the relation between the sight line.In this case, the stroboscopic artifact appears in the object of just being watched attentively, thereby the deterioration of highly significant takes place.For example in sports relay and the action movie, this phenomenon is significant in fast the video source that can not easily predict next motion of motion.During the moving image of catching film etc., adopt various technology, so that prevent such moving image quality deterioration: for example the motion object is when being followed the tracks of by video camera, catch by video camera, and on display screen, show the motion object of being caught, perhaps introduce being known as bluring of motion blur and suppressing the stroboscopic artifact with the state of fixed object.Yet the restriction that applies by these technology has caused representing the restriction of mode.In addition, these modes can not be used for sports etc., because interested motion of objects is uncertain.

According to the angular speed of motion object, above-mentioned moving image quality deterioration increases.Therefore, if the moving image of same video scene is presented on the display that has with great visual angle, the quality of moving image deterioration more significantly then.In addition, the attempt that increases resolution improves above-mentioned moving image quality deterioration hardly.On the contrary, resolution is high more to cause the improvement of rest image quality big more, thereby the moving image quality deterioration becomes more remarkable.Along with developing more screen sizes and more high-resolution display, can expect above-mentioned moving image quality will become bigger problem in the future.

The reason of moving image quality deterioration is the shortage of time reproducibility.Therefore, basic solution is an improvement time reproducibility.More particularly, useful solution is to improve to be used for image and to catch and show both frame rate.

With the relation of describing in more detail between moving image quality deterioration and the display type.

For example, from between Figure 13 A and the 13B more as can be seen, the length of the motion object images of visually discerning by tracking in Figure 13 B is longer than the length of the motion object images of visually discerning by following the tracks of in Figure 13 A, thereby with the situation of impulse type display relatively, the motion blur of being felt by the observer of the motion object of tracing display on the maintenance display becomes big.On the other hand, from such fact, promptly in Figure 13 A, visually fixed object is identified as the image of separation by tracking, and in Figure 13 B, visually fixed object is identified as continuous images on direction in space by tracking, as can be seen, compare with the situation of impulse type display, the fixed object that is presented on the maintenance display is that nature is visible during following the tracks of.

Similarly, from between Figure 13 C and the 13D more as can be seen, the length of the motion object images of visually discerning by tracking in Figure 13 D is longer than the length of the motion object images of visually discerning by following the tracks of in Figure 13 C, thereby with the situation of impulse type display relatively, the motion blur of being felt by the observer of the motion object of tracing display on the maintenance display becomes big.On the other hand, from such fact, promptly in Figure 13 C, visually fixed object is identified as the image of separation by tracking, and in Figure 13 D, visually fixed object is identified as continuous images on direction in space by tracking, as can be seen, compare with the situation of impulse type display, the fixed object that is presented on the maintenance display is that nature is visible during following the tracks of.

During following the tracks of, the identification of motion object shown in Figure 13 A and fixed object is same as the motion object shown in Figure 13 B and the identification of fixed object, and the identification of motion object shown in Figure 13 C and fixed object is same as the motion object shown in Figure 13 D and the identification of fixed object, but the identification of motion object shown in Figure 13 A and the 13B and fixed object is different from the motion object shown in Figure 13 C and the 13D and the identification of fixed object.From this fact as can be seen, the identification of motion object and fixed object during staring (mode that motion blur and stroboscopic artifact (shake) occur) is identical, and with type of display be that impulse type or maintenance are irrelevant.In addition, as can be seen, even catch the motion object of its image, also imperceptible stroboscopic artifact (shake) by opening fast gate technique by staring observation, if but catch the motion object of its image by staring observation by the high-speed shutter technology, then feel stroboscopic artifact (shake).

The improvement degree of the moving image deterioration that Figure 15 is realized when showing above the frame rate high with twice caught and to show it with reference to the described motion image data of Figure 13 and with the high frame rate of twice.

Figure 15 A shows the identification of observer to moving image, its with above doubling with reference to the frame rate under the described situation of Figure 13, by opening that fast gate technique is caught and showing by the impulse type display.Figure 15 B shows the identification of observer to moving image, its with above doubling with reference to the frame rate under the described situation of Figure 13, by opening that fast gate technique is caught and showing by the maintenance display.Figure 15 C shows the identification of observer to moving image, its with above doubling with reference to the frame rate under the described situation of Figure 13, catch and show by the high-speed shutter technology by the impulse type display.Figure 15 D shows the identification of observer to moving image, its with above doubling with reference to the frame rate under the described situation of Figure 13, catch and show by the high-speed shutter technology by the maintenance display.

Shown in Figure 15 A each in the 15D, each catch with display packing in, the fuzzy quantity that will cause owing to fuzzy artifact in the identification of display image reduces to half.In addition, improved the image deterioration that causes owing to the stroboscopic artifact, big because the dispersed number of stroboscopic becomes twice.More particularly, fuzzy artifact and stroboscopic artifact are improved linearly with respect to the raising of frame rate.In addition, along with improving frame rate, the difference that depends between the quality of moving image quality deterioration in shutter cycle and emission cycle reduces.More particularly, can think that the frame rate of raising is the very useful mode that is used to improve moving image quality.

According to the comparison of Figure 13 A and 15A and the comparison of Figure 13 B and 15B, the ratio of the length of the length of the motion object of visually feeling by tracking in Figure 15 B apparently, and the motion object of visually feeling by tracking in Figure 13 B is less than the ratio of length with the length of the motion object of visually feeling by tracking in Figure 13 A of the motion object of visually feeling by tracking in Figure 15 A.Similarly, according to the comparison of Figure 13 C and 15C and the comparison of Figure 13 D and 15D, the ratio of the length of the length of the motion object of visually feeling by tracking in Figure 15 D apparently, and the motion object of visually feeling by tracking in Figure 13 D is less than the ratio of length with the length of the motion object of visually feeling by tracking in Figure 13 C of the motion object of visually feeling by tracking in Figure 15 C.

More particularly, can think that if improve the frame rate of pulse and maintenance display similarly, the effect that then reduces motion blur in the maintenance display is higher than the impulse type display.More particularly, in the maintenance display, the effect that frame rate improves reduce the motion blur that takes place during following the tracks of is significant.

On the other hand, for stroboscopic artifact (shake), because the interval between the fixed object image that separate to show generally becomes shorter, so stroboscopic artifact (shake) generally becomes and more can not feel.

For by opening the demonstration of the moving image that shutter catches,,, under tracking condition, its moving image quality is carried out evaluation and test according to shake and motion blur by the visual psychology Physical Experiment.

Figure 16 shows the result according to the shake evaluation and test, and Figure 17 shows the result according to the motion blur evaluation and test.For this evaluation and test, various moving images have been prepared, for example by opening proper motion image, CG motion and the video image that the shutter video is caught.Providing evaluation and test according to following deterioration yardstick divides: evaluation and test value 5=＂ deterioration is imperceptible ＂, but evaluation and test value 4=＂ deterioration is realizable not disagreeable ＂, but evaluation and test value 3=＂ deterioration be realizable be not the ＂ of obstruction, evaluation and test value 2=＂ deterioration is the ＂ that hinders, and evaluation and test value 1=＂ deterioration is the ＂ that hinders very much.In addition, provide evaluation and test according to following evaluation and test yardstick and divide: the very good ＂ of evaluation and test value 5=＂, the good ＂ of evaluation and test value 4=＂, the medium ＂ of evaluation and test value 3=＂, evaluation and test value 2=＂ difference ＂, and the non-constant ＂ of evaluation and test value 1=＂.In this experiment, the tested object of enough numbers has been carried out evaluation and test, so that realize research about the evaluation and test of general motion picture quality.In Figure 16 and 17, mean value and standard deviation have been drawn about evaluation and test value all scenes, that provide by all tested objects.

Compare with shake shown in Figure 16, the evaluation and test value of motion blur shown in Figure 17 changes greatly, and for shake and motion blur, jointly observes such trend, that is, along with frame rate uprises, the evaluation and test value of moving image quality uprises.Especially, the evaluation and test value of motion blur shows such polyline shaped trend, promptly near arriving as the evaluation and test value 4.5 of sensation limit value near the 250fps, and the smooth value that is not less than evaluation and test value 4.5 is shown in much higher frame rate.The evaluation and test value of shake also shows such polyline shaped trend, promptly near arriving as the evaluation and test value 4.5 of sensation limit value near the 250fps, and the general planar value that is not less than evaluation and test value 4.5 is shown in much higher frame rate.

Therefore, can be by improving satisfactorily during following the tracks of near the frame rate of 250fps, causing the motion blur of especially significant moving image quality deterioration.More particularly, this fact has hinted it is desirable frequency near the 250fps, and it considers the validity of present widely used video resource.Specifically, as previously mentioned, a large amount of present widely used video resources have the frame rate of 50Hz or 60Hz, and this fact has hinted that 240Hz or 250Hz as the integral multiple of this frequency are the ideal frequency of considering the validity of video resource.

Below this evaluation and test will be described in more detail.In EBU (European Broadcasting Union) method, evaluation and test value 4.5 is sensation limit values, thereon, be worth in corresponding any zone with the evaluation and test that is higher than 4.5, indifference is imperceptible basically, and evaluation and test value 3.5 is to allow limit value, at it down, be worth in corresponding any zone with the evaluation and test that is lower than 3.5, improving is imperceptible basically.

In the result of the evaluation and test that concentrates on motion blur, with evaluation and test value 3.5 allow that the corresponding frame rate of limit value is 105.Frame rate 105, the general user begins to feel the improvement of motion blur.More particularly, 105 or higher frame rate, the general user can feel the improvement of motion blur.

In the result of the evaluation and test that concentrates on motion blur, with the corresponding frame rate of sensation limit value of evaluation and test value 4.5 be 230.230 or higher frame rate, the general user feels that gratifying motion blur improves.In other words, 230 or higher frame rate, the general user can feel that the motion blur that reaches the peak improves.More particularly, 230 or higher frame rate, the general user can feel the improvement of motion blur satisfactorily.

In the result who concentrates on the evaluation and test of shaking, the evaluation and test value of frame rate 480 is 5.0, and this value is the very little value of its standard deviation.Therefore, in frame rate 480, the general user can not identify shake.More particularly, in frame rate 480, the image deterioration that causes owing to shake can be suppressed to the degree that the user can not discern.

Therefore, in frame rate 150,200,250,300,350,400,450 or 500, it is to be not less than 105 and equal the frame rate of the integral multiple of the frame rate 50 among the PAL, can improve the moving image quality deterioration.Be not less than 150 and equal the frame rate of the integral multiple of the frame rate 50 among the PAL, the general user can feel the improvement of motion blur.Be not less than 250 and equal the frame rate of the integral multiple of the frame rate 50 among the PAL, the general user can feel the improvement of motion blur satisfactorily.

Similarly, in frame rate 120,180,240,300,360,420 or 480, it is to be not less than 105 and equal the frame rate of the integral multiple of the frame rate 60 among the NTSC, can improve the moving image quality deterioration.Be not less than 120 and equal the frame rate of the integral multiple of the frame rate 60 among the NTSC, the general user can feel the improvement of motion blur.Be not less than 240 and equal the frame rate of the integral multiple of the frame rate 60 among the NTSC, the general user can feel the improvement of motion blur satisfactorily.

In the frame rate of the integral multiple of the frequency of the general broadcast form that equals NTSC for example or PAL, easily carries out image processing.In addition, it has been general using three panel type prisms (three-panel type prism) during capture video images.Therefore, can be easily to having the vision signal carries out image processing of frame rate 180, wherein, frame rate 180 is the frame rate that are not less than evaluation and test value 3.5, in the EBU method, on evaluation and test value 3.5, the general user can feel the improvement of motion blur, and by catching the video image that each all has 60 frame rate, by means of three panel type prisms video image was offset 1/180 second mutually simultaneously, can easily obtains such vision signal.

In addition, have been found that from a series of experiments in the time will showing computer graphic image, 360 or 350 frame rate is particularly preferred.This is because computer graphic image for example generally comprises high fdrequency component at its edge.Therefore, can easily feel, and when 250 or 240 frame rate is changed over 360 or 350 frame rate, even the general user also can feel the improvement of picture quality owing to the deterioration in image quality that causes of shake.

Above with reference to figure 1 or shown in Figure 6, can be used for showing moving image that wherein 240Hz or 250Hz are the frequencies that equals 50Hz or 60Hz integral multiple with 240Hz or 250Hz according to image display system of the present invention.For example, as shown in figure 18, can adopt two or more projecting apparatus 51-1 to realize showing that with the moving image of 240Hz or 250Hz wherein 240Hz or 250Hz are the frequencies that equals the integral multiple of 50Hz or 60Hz to 51-n and image display system according to the present invention.

Projecting apparatus 51-1 each in the 51-n is in the timing based on the control of display control section 27, form the pixel (X of the display image that will be shown by scanning in the horizontal direction, Y)=(0,0) to pixel (X, Y)=(p, q), on screen 52, show and the corresponding two field picture of vision signal that is provided.When the frame rate of the moving image that is provided for image display system is m Hz, the frame rate that is presented at the two field picture on the screen 52 by projecting apparatus 51-1 each in the 51-n is m/n Hz, but is m Hz by projecting apparatus 51-1 to the frame rate of the moving image of 51-n demonstration.Begin regularly with respect to by projecting apparatus 51-1 each display frame skew 1/n phase place that provides in the 51-n by the scanning of each frame of each demonstration of projecting apparatus 51-1 in the 51-n, i.e. 1/m second.

For example, when projecting apparatus 51-2 scan on the screen 52 with the row of representing with scanning B on α+1 frame corresponding when capable, on the projecting apparatus 51-3 scanning screen 52 with the row of representing with scan A on α+corresponding row of 2 frames.With the row represented of scanning B is 1/n with respect to the line number of a frame of line displacement of representing with scan A.More particularly, with the time interval of 1/m, alternately rewrite the moving image that is presented on the screen 52 by a plurality of scannings that comprise scan A and scanning B.

If the frame rate of received image signal is 240Hz, and the separation number of picture signal for example is four, then will sequentially offer four D/A conversion portions, perhaps will partly be separated into four frame and sequentially offer four frame memories respectively and be stored in wherein by data separating from the picture signal of frame memory output.Like this, as shown in figure 19, incoming video signal S1 is separated into four outputting video signal S2, S3, S4 and S5, and these four outputting video signal S2, S3, S4 and S5 are offered four scan control parts respectively.

First scan control partly control α frame, α+4 frames ... demonstration, all these frames are corresponding to outputting video signal S2.Second scan control partly control α+1 frame, α+5 frames ... demonstration, all these frames are corresponding to outputting video signal S3.The 3rd scan control partly control α+2 frames, α+6 frames ... demonstration, all these frames are corresponding to outputting video signal S4.The 4th scan control partly control α+3 frames, α+7 frames ... demonstration, all these frames are corresponding to outputting video signal S5.Respectively the frame rate of the frame of the outputting video signal that partly shows by first to the 4th scan control be incoming video signal frame rate 1/4, and the scanning time started of the frame that partly scans by first to the 4th scan control respectively be offset 1/4 of the required scan period of a frame showing outputting video signal S2 each in the S5 mutually.

If the frame rate of received image signal is 240Hz, and the separation number of picture signal for example is five, then will sequentially offer five D/A conversion portions, perhaps will partly be separated into five frame and sequentially offer five frame memories respectively and be stored in wherein by data separating from the picture signal of frame memory output.Like this, as shown in figure 20, incoming video signal S1 is separated into five outputting video signal S2, S3, S4, S5 and S6, and these five outputting video signal S2, S3, S4, S5 and S6 are offered five scan control parts respectively.

First scan control partly control α frame, α+5 frames ... demonstration, all these frames are corresponding to outputting video signal S2.Second scan control partly control α+1 frame, α+6 frames ... demonstration, all these frames are corresponding to outputting video signal S3.The 3rd scan control partly control α+2 frames, α+7 frames ... demonstration, all these frames are corresponding to outputting video signal S4.The 4th scan control partly control α+3 frames, α+8 frames ... demonstration, all these frames are corresponding to outputting video signal S5.The 5th scan control partly control α+4 frames, α+9 frames ... demonstration, all these frames are corresponding to outputting video signal S6.Respectively the frame rate of the frame of the outputting video signal that partly shows by first to the 5th scan control be incoming video signal frame rate 1/5, and the scanning time started of the frame that partly scans by first to the 5th scan control respectively be offset 1/5 of the required scan period of a frame showing outputting video signal S2 each in the S6 mutually.

With during the moving image of the most widely used 50Hz or 60Hz shows at present, be significant such as moving image quality deterioration fuzzy or shake.On the other hand, for example, when 4 or 5 as the time according to the separation number n of vision signal of the present invention, can by use widely used traditional type, with the display unit of the frame rate operation of 50Hz or 60Hz (for example, projecting apparatus), show moving image with high frame rate.For example, when the separation number of incoming video signal is n=4, and when the frame rate of the display image of each output of projecting apparatus 51-1 to 51-4 was 60Hz, the frame rate that is presented at the moving image on the screen 52 became 240Hz basically.In addition, for example, when the separation number of incoming video signal is n=5, and when the frame rate of the display image of each output of projecting apparatus 51-1 to 51-4 was 50Hz, the frame rate that is presented at the moving image on the screen 52 became 250Hz basically.

As previously mentioned, a large amount of present widely used video resources have the frame rate of 50Hz or 60Hz, thereby as the 240Hz of the integral multiple of this frequency or the ideal frequency that 250Hz becomes the validity of considering video resource.

Equally in this case, certainly, the number of scan control part can be arranged to s, and the separation number of incoming video signal can be arranged to n, so that can assign to show moving image by using s n scan control section in the middle of the scan control part less than s.

The image display system with another structure 101 according to the embodiment of the invention will be described below.Figure 21 is the block diagram that the structure of the image display system 101 that uses LCD is shown.

Image display system 101 shown in Figure 21 comprises signal processing 111, clock/sampling pulse generating portion 112 and image display device 113.Signal processing 111 is obtained the picture signal as input signal, and the picture signal of being obtained is used signal processing, and digital rgb (red, green, blue) signal is offered image display device 113.Clock/sampling pulse generating portion 112 is obtained the picture signal as input signal, and picture signal detection level synchronizing signal and vertical synchronizing signal from being obtained, and based on the level that is detected and vertical synchronizing signal and generate control signal.Clock/sampling pulse generating portion 112 offers signal processing 111 and image display device 113 with the control signal that is generated.

Image display device 113 is equipped with LCD, and based on from signal processing 111 and signal that clock/sampling pulse generating portion 112 provides and display image.

Signal processing 111 is made of Y/C separation/chroma decoding part 121, A/D conversion portion 122 and frame memory 123.Y/C separation/chroma decoding part 121 is separated into luminance signal (Y) and color signal (C) with the picture signal of being obtained, and color signal is decoded, and generates the analog rgb signal.Y/C separation/chroma decoding part 121 offers A/D conversion portion 122 with the analog rgb signal that is generated.

A/D conversion portion 122 is based on the control signal from clock/sampling pulse generating portion 112 provides, the analog rgb signal that provides from Y/C separation/chroma decoding part 121 is carried out analog/digital conversion, and the digital rgb signal that is generated is offered frame memory 123.Frame memory 123 is provided by digital rgb signal provisionally that provide from A/D conversion portion 122 orders, and the digital rgb signal of being stored is offered image display device 113.

Clock/sampling pulse generating portion 112 comprises synchronization signal detection part 124 and control signal generating portion 125.Picture signal detection level synchronizing signal and the vertical synchronizing signal of synchronization signal detection part 124 from being obtained, and level and the vertical synchronizing signal that is detected offered control signal generating portion 125.Control signal generating portion 125 is based on level that provides from synchronization signal detection part 124 and vertical synchronizing signal, generation is used for controlling the control signal of the analog/digital conversion of A/D conversion portion 122, and the control signal that is used to control the demonstration on the image display device 113, and the control signal that is generated offered A/D conversion portion 122 and image display device 113.

Image display device 113 comprises that LCD 131, backlight 132, data line drive circuit 133-1 are to 133-4, select lines drive part 134 and backlight drive circuit 135.LCD 131 is the maintenance displays with matrix driving pixel, and changes transmission light quantity and display image by the orientation of the inner liquid crystal of control pixel, wherein pixel respectively by be arranged in the screen liquid crystal cell form.

Backlight 132 is emission light enters LCD 131 with the back from LCD 131 light sources.Based on the control signal that provides from control signal generating portion 125, data line drive circuit 133-1 according to the digital rgb signal that provides from signal processing 111, carries out the matrix driving of each pixel of LCD 131 to 133-4 and select lines drive part 134.It is backlight 132 that backlight drive circuit 135 drives, so that emission light.

More particularly, in LCD 131, one group of liquid crystal cell 141-1-1, TFT (thin-film transistor) 142-1-1 and capacitor 143-1-1 are arranged in first of first row respectively to one group of liquid crystal cell 141-n-m (not shown), TFT 142-n-m (not shown) and capacitor 143-n-m (not shown) and are listed as in the capable n row of n.

Unless need individually identification liquid crystal cell 141-1-1 to 141-n-m, otherwise following liquid crystal cell 141-1-1 made liquid crystal cell 141 to the 141-n-m abbreviation.Unless need identify TFT 142-1-1 individually to TFT 142-n-m, otherwise following TFT 142-1-1 is called for short to TFT 142-n-m, made TFT 142.Unless need identify capacitor 143-1-1 individually to 143-n-m, otherwise following capacitor 143-1-1 is called for short to TFT 143-n-m, made capacitor 143.

A liquid crystal cell 141, a TFT 142 and a capacitor 143 are arranged to one group, thus the constructor pixel.Liquid crystal cell 141 comprises liquid crystal, and according to the voltage that is applied by TFT 142, changes from the optical transmission light quantity of 132 irradiations backlight.TFT 142 drives liquid crystal cell 141 by voltage being applied to liquid crystal cell 141.Provide capacitor 143 in parallel with liquid crystal cell 141, and during the cycle of each frame, it keeps being applied to the voltage of liquid crystal cell 141.

In LCD 131, will all constitute in liquid crystal cell 141-1-1, the TFT 142-1-1 of a sub-pixel and first left column that capacitor 143-1-1 is arranged in first top line.In LCD 131, liquid crystal cell 141-1-2, the TFT 142-1-2 of a sub-pixel and the right that capacitor 143-1-2 is arranged in liquid crystal cell 141-1-1, TFT 142-1-1 and capacitor 143-1-1 will be constituted all.In addition, in LCD 131, will all constitute liquid crystal cell 141-1-3, TFT 142-1-3 and the capacitor 143-1-3 of a sub-pixel and all constitute liquid crystal cell 141-1-4, the TFT 142-1-4 of a sub-pixel and capacitor 143-1-4 is arranged in the right with designated order.

In LCD 131, four sub-pixels that are arranged side by side in the horizontal line constitute a pixel (pixel).More particularly, liquid crystal cell 141-1-1 constitutes a pixel to capacitor 143-1-4.

Similarly, in LCD 131, will all constitute in liquid crystal cell 141-2-1, the TFT 142-2-1 of a sub-pixel and first left column that capacitor 143-2-1 is arranged in second top line.In LCD 131, liquid crystal cell 141-2-2, the TFT 142-2-2 of a sub-pixel and the right that capacitor 143-2-2 is arranged in liquid crystal cell 141-2-1, TFT 142-2-1 and capacitor 143-2-1 will be constituted all.In addition, in LCD131, will all constitute liquid crystal cell 141-2-3, TFT 142-2-3 and the capacitor 143-2-3 of a sub-pixel and all constitute liquid crystal cell 141-2-4, the TFT 142-2-4 of a sub-pixel and capacitor 143-2-4 is arranged in the right with designated order.

Liquid crystal cell 141-2-1 constitutes a pixel to capacitor 143-2-4.

For example, if the picture signal of 240 frame/seconds is provided, then control signal generating portion 125 offers data line drive circuit 133-1 with control signal, so that will be presented on the leftmost sub-pixel that is positioned at a pixel as the frame 1 of first frame.

Data line drive circuit 133-1 reads the digital rgb signal of frame 1 from frame memory 123, and based on the digital rgb signal of the frame 1 that is read and drive signal is offered LCD 131, so that be positioned on the leftmost sub-pixel in the middle of frame 1 being presented at four sub-pixels on the horizontal line that is arranged side by side at a pixel (pixel), the sub-pixel that forms by liquid crystal cell 141-1-1, TFT 142-1-1 and capacitor 143-1-1 for example, or the sub-pixel that forms by liquid crystal cell 141-2-1, TFT 142-2-1 and capacitor 143-2-1.

Then, control signal generating portion 225 offers data line drive circuit 133-2 with control signal, so that will be presented on the sub-pixel on second left side that is positioned at this pixel as the frame 2 of second frame of the moving images of 240 frame/seconds.

Data line drive circuit 133-2 reads the digital rgb signal of frame 2 from frame memory 123, and based on the digital rgb signal of the frame 2 that is read and drive signal is offered LCD 131, so that be positioned on the sub-pixel on second left side in the middle of frame 2 being presented at four sub-pixels on the horizontal line that is arranged side by side at this pixel (pixel), the sub-pixel that forms by liquid crystal cell 141-1-2, TFT 142-1-2 and capacitor 143-1-2 for example, or the sub-pixel that forms by liquid crystal cell 141-2-2, TFT 142-2-2 and capacitor 143-2-2.

In addition, control signal generating portion 125 offers data line drive circuit 133-3 with control signal, so that will be presented on the sub-pixel on the 3rd left side that is positioned at this pixel as the frame 3 of the 3rd frame of the moving images of 240 frame/seconds.

Data line drive circuit 133-3 reads the digital rgb signal of frame 3 from frame memory 123, and based on the digital rgb signal of the frame 3 that is read and drive signal is offered LCD 131, so that be positioned on the sub-pixel on the 3rd left side in the middle of frame 3 being presented at four sub-pixels on the horizontal line that is arranged side by side at this pixel (pixel), the sub-pixel that forms by liquid crystal cell 141-1-3, TFT 142-1-3 and capacitor 143-1-3 for example, or the sub-pixel that forms by liquid crystal cell 141-2-3, TFT 142-2-3 and capacitor 143-2-3.

In addition, control signal generating portion 125 offers data line drive circuit 133-4 with control signal, so that will be presented on the rightmost sub-pixel that is positioned at this pixel as the frame 4 of the 4th frame of the moving images of 240 frame/seconds.

Data line drive circuit 133-4 reads the digital rgb signal of frame 4 from frame memory 123, and based on the digital rgb signal of the frame 4 that is read and drive signal is offered LCD 131, so that be positioned on the rightmost sub-pixel in the middle of frame 4 being presented at four sub-pixels on the horizontal line that is arranged side by side at this pixel (pixel), the sub-pixel that forms by liquid crystal cell 141-1-4, TFT 142-1-4 and capacitor 143-1-4 for example, or the sub-pixel that forms by liquid crystal cell 141-2-4, TFT 142-2-4 and capacitor 143-2-4.

Then, control signal generating portion 125 offers data line drive circuit 133-1 with control signal, so that will be presented on the leftmost sub-pixel that is positioned at a pixel as the frame 5 of the 5th frame of the moving images of 240 frame/seconds.

Data line drive circuit 133-1 reads the digital rgb signal of frame 5 from frame memory 123, and based on the digital rgb signal of the frame 5 that is read and drive signal is offered LCD 131, so that be positioned on the leftmost sub-pixel in the middle of frame 5 being presented at four sub-pixels on the horizontal line that is arranged side by side at this pixel (pixel), the sub-pixel that forms by liquid crystal cell 141-1-1, TFT 142-1-1 and capacitor 143-1-1 for example, or the sub-pixel that forms by liquid crystal cell 141-2-1, TFT 142-2-1 and capacitor 143-2-1.

By this way, be arranged side by side at the image that four sub-pixel orders on the horizontal line of a pixel (pixel) show a frame.

In this case, preferably, during 1/240 second cycle, show each frame, but also be preferably, for example showing each frame during 1/60 second the more long period.

According to this structure,, also might show the moving image that constitutes by bigger number of pictures per second even the response time of liquid crystal is long.The moving image that for example, might show for 240 frame/seconds.

Though in above-mentioned structure, use LCD, can use the matrix driving display of any kind but not LCD.For example, can use display or the OLED display that adopts LED.

As mentioned above, in the maintenance display of the demonstration of each pixel during each frame period on the maintenance screen, control shows, so that show by 105 or the moving image that more constitutes multiframe/second, and when showing based on such control by 105 or during the moving image that more constitutes multiframe/second, needn't improve frame rate based on human visual system, the moving image of less deterioration can be presented to the observer, it is the people who watches shown moving image.

In addition, in the matrix driving escope, control shows, so that show by 105 or the moving image that more constitutes multiframe/second, and when showing based on such control by 105 or during the moving image that more constitutes multiframe/second, needn't improve frame rate based on human visual system, the moving image of less deterioration can be presented to the observer, it is the people who watches shown moving image.

Can also carry out above-mentioned all processing by means of software.This software can be installed to the computer with specialized hardware of having incorporated the program that constitutes this software into from recording medium, perhaps can carry out on the all-purpose computer of various functions by various programs mounted thereto.

Encapsulation medium that recording medium is distributed to the user mutually dividually by having write down program so that with computer etc. forms, and shown in Fig. 1 or 6, (for example comprise disk 31, floppy disk), CD 32 (for example, CD-ROM (compact disk-read-only memory) and DVD (digital multi-purpose disk)), magneto optical disk 33 (for example, MD (mini disk (trade mark)), semiconductor memory 34 etc.

In this manual, certainly, the step of describing the program on the recording medium that is recorded in can not only comprise according to described order, with the processing that the seasonal effect in time series mode is carried out, and also comprises and not necessarily carrying out but processing parallel or that carry out separately.

In this manual, the entire equipment that constitutes by multiple arrangement of term " system " expression.

Claims

1. image processing equipment is used to handle the picture signal that will be shown by image display, and this image processing equipment comprises: storage device is used to store the picture signal with first frame rate that provides; Output-controlling device is used for the control chart image signal to a plurality of image displays or be arranged in the output of a plurality of picture signal display processing units of image display; And display control unit, be used to control demonstration corresponding to the image of the picture signal of under the control of output-controlling device, exporting; Wherein, n image display is being provided at least or is being arranged under the situation of the display processing unit in the image display: the output of output-controlling device control chart image signal makes picture signal output to n image display or display processing unit from storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that outputs to n image display or display processing unit, makes corresponding to the image of the picture signal that outputs to n image display or display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

2. image processing equipment according to claim 1 also comprises checkout gear, is used to detect the synchronizing signal of the picture signal with first frame rate, and wherein output-controlling device is based on the output of this synchronizing signal control chart image signal.

3. image processing equipment according to claim 1 also comprises: digital signal transfer unit, and the picture signal that is used for having first frame rate is converted to digital signal; And a plurality of analog signal conversion devices, the picture signal that is used for having second frame rate is converted to analog signal, and the output with picture signal of second frame rate is controlled by output-controlling device.

4. image processing equipment according to claim 1, wherein: this first frame rate is 240Hz; This second frame rate is 60Hz; There are at least 4 image displays or are arranged in display processing unit in the image display; And the output of output-controlling device control chart image signal makes picture signal to equal 1/4 the frame rate of 240Hz, and promptly the frame rate of 60Hz outputs to 4 image displays or display processing unit frame by frame.

5. image processing equipment according to claim 1, wherein: this first frame rate is 250Hz; This second frame rate is 50Hz; There are at least 5 image displays or are arranged in display processing unit in the image display; And the output of output-controlling device control chart image signal makes picture signal to equal 1/5 the frame rate of 250Hz, and promptly the frame rate of 50Hz outputs to 5 image displays or display processing unit frame by frame.

6. image processing equipment according to claim 1, wherein: this first frame rate is 180Hz; This second frame rate is 60Hz; There are at least 3 image displays or are arranged in display processing unit in the image display; And the output of output-controlling device control chart image signal makes picture signal to equal 1/3 the frame rate of 180Hz, and promptly the frame rate of 60Hz outputs to 3 image displays or display processing unit frame by frame.

7. image processing equipment according to claim 1, wherein: this first frame rate is 150Hz; This second frame rate is 50Hz; There are at least 3 image displays or are arranged in display processing unit in the image display; And the output of output-controlling device control chart image signal makes picture signal to equal 1/3 the frame rate of 150Hz, and promptly the frame rate of 50Hz outputs to 3 image displays or display processing unit frame by frame.

8. mode of in comprising the image processing equipment of memory cell, handling the picture signal that will show by image display, this method comprises: the storage controlled step of the picture signal that control store has first frame rate in the memory cell; The control output image signal is to a plurality of image displays or a plurality of output controlled step that is arranged in the display processing unit in the image display; And control shows the demonstration controlled step corresponding to the image of picture signal; Wherein, n image display is provided at least or is arranged under the situation of the display processing unit in the image display in existence: in the output controlled step, the output of output-controlling device control chart image signal makes picture signal output to n image display or display processing unit from storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And in showing controlled step, control is corresponding to the demonstration of the image of the picture signal that outputs to n image display or n display processing unit in output in the controlled step, makes corresponding to the image of the picture signal that outputs to n image display or n display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

9. image display system, comprising: image processing equipment is used to handle picture signal; And image display, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: storage device is used to store the picture signal with first frame rate that provides; Output-controlling device is used for image display is arrived in control store in the picture signal of storage device output; And display control unit, be used to control by the image of image display demonstration corresponding to the picture signal of exporting by output-controlling device; Image display comprises: a plurality of image display processors, be used for providing image with dot sequency or line sequential system, and display unit, be used to show the image that provides by image display processor; At least n image display processor is provided; The output of output-controlling device control chart image signal makes picture signal output to n image display processor frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that outputs to n image display processor, makes corresponding to the image of the picture signal that outputs to n image display processor the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

10. image display system according to claim 9; Wherein a plurality of image display processors are carried out this to be provided, and the site error between corresponding n the pixel of the image that the picture signal that making is provided from image processing equipment by the display unit basis shows is less than a pixel wide.

11. image display system according to claim 9, wherein: this first frame rate is 240Hz; This second frame rate is 60Hz; At least 4 image display processors are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/4 the frame rate of 240Hz, and promptly the frame rate of 60Hz outputs to 4 image display processors frame by frame.

12. image display system according to claim 9, wherein: this first frame rate is 250Hz; This second frame rate is 50Hz; At least 5 image display processors are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/5 the frame rate of 250Hz, and promptly the frame rate of 50Hz outputs to 5 image display processors frame by frame.

13. image display system according to claim 9, wherein: this first frame rate is 180Hz; This second frame rate is 60Hz; At least 3 image display processors are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/3 the frame rate of 180Hz, and promptly the frame rate of 60Hz outputs to 3 image display processors frame by frame.

14. image display system according to claim 9, wherein: this first frame rate is 150Hz; This second frame rate is 50Hz; At least 3 image display processors are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/3 the frame rate of 150Hz, and promptly the frame rate of 50Hz outputs to 3 image display processors frame by frame.

15. an image display system comprises: image processing equipment is used to handle picture signal; And a plurality of image displays, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: storage device is used to store the picture signal with first frame rate that provides; Output-controlling device is used for image display is arrived in control store in the picture signal of storage device output; And display control unit, be used to control by the image of image display demonstration corresponding to the picture signal of exporting by output-controlling device; Each image display comprises: image display processor is used for providing image with dot sequency mode or line sequential system; At least n image display is provided; The output of output-controlling device control chart image signal makes picture signal output to n image display frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that outputs to n image display, makes corresponding to the image of the picture signal that outputs to n image display the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

16. image display system according to claim 15, wherein each image display is to be used to rely on projection to form the projecting apparatus of image.

17. image display system according to claim 15, wherein a plurality of image display processors are carried out this processing, make site error between corresponding n the pixel of the picture signal that provides from image processing equipment less than a pixel wide.

18. image display system according to claim 15, wherein: this first frame rate is 240Hz; This second frame rate is 60Hz; At least 4 image displays are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/4 the frame rate of 240Hz, and promptly the frame rate of 60Hz outputs to 4 image displays frame by frame.

19. image display system according to claim 15, wherein: this first frame rate is 250Hz; This second frame rate is 50Hz; At least 5 image displays are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/5 the frame rate of 250Hz, and promptly the frame rate of 50Hz outputs to 5 image displays frame by frame.

20. image display system according to claim 15, wherein: this first frame rate is 180Hz; This second frame rate is 60Hz; At least 3 image displays are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/3 the frame rate of 180Hz, and promptly the frame rate of 60Hz outputs to 3 image displays frame by frame.

21. image display system according to claim 15, wherein: this first frame rate is 150Hz; This second frame rate is 50Hz; At least 3 image displays are provided; And the output of output-controlling device control chart image signal makes picture signal to equal 1/3 the frame rate of 150Hz, and promptly the frame rate of 50Hz outputs to 3 image displays frame by frame.

22. an image processing equipment, being used to handle will be by the picture signal of image display demonstration, and this image processing equipment comprises: it is a plurality of subimage signals that separator, the picture signal with first frame rate that is used for will providing frame by frame separate; A plurality of storage devices are used to store the subimage signal by each separation of this separator output; Output-controlling device, be used for control store at each number of sub images signals of a plurality of storage devices to a plurality of image displays or be arranged in the output of a plurality of image display processing units in the image display; And display control unit, being used to control demonstration corresponding to the image of the total picture signal that forms by whole subimage letters, the output of this subimage signal is controlled by output-controlling device; Wherein, under the situation that n image display or display processing unit are provided at least: this separator separates picture signal and is n number of sub images signal; N storage device is provided; The output of output-controlling device control subimage signal makes the subimage signal output to n image display or display processing unit from separately n storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that is made of the whole subimage signals that output to n image display or display processing unit, makes corresponding to the image of the subimage signal that outputs to n image display or n display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

23. image processing equipment according to claim 22 also comprises checkout gear, is used to detect the synchronizing signal of the picture signal with first frame rate, wherein output-controlling device is based on the output of the synchronizing signal control chart image signal that is detected by checkout gear.

24. image processing equipment according to claim 22 also comprises: digital signal transfer unit, the picture signal that is used for having first frame rate is converted to digital signal; And a plurality of analog signal conversion devices, the subimage conversion of signals that is used for having second frame rate is an analog signal, the output with subimage signal of second frame rate is controlled by output-controlling device.

25. image processing equipment according to claim 22, wherein: this first frame rate is 240Hz; This second frame rate is 60Hz; At least 4 image displays or display processing unit are provided; It is 4 subsignals that this separator separates picture signal; 4 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 60Hz, outputs to 4 image displays or display processing unit from each 4 storage devices frame by frame.

26. image processing equipment according to claim 22, wherein: this first frame rate is 250Hz; This second frame rate is 50Hz; At least 5 image displays or display processing unit are provided; It is 5 subsignals that this separator separates picture signal; 5 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 50Hz, outputs to 5 image displays or display processing unit from each 5 storage devices frame by frame.

27. image processing equipment according to claim 22, wherein: this first frame rate is 180Hz; This second frame rate is 60Hz; At least 3 image displays or display processing unit are provided; It is 3 subsignals that this separator separates picture signal; 3 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 60Hz, outputs to 3 image displays or display processing unit from each 3 storage devices frame by frame.

28. image processing equipment according to claim 22, wherein: this first frame rate is 150Hz; This second frame rate is 50Hz; At least 3 image displays or display processing unit are provided; It is 3 subsignals that this separator separates picture signal; 3 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 30Hz, outputs to 3 image displays or display processing unit from each 3 storage devices frame by frame.

29. a mode of handling the picture signal that will be shown by image display in comprising the image processing equipment of a plurality of memory cell, this method comprises: the picture signal with first frame rate that will provide is frame by frame separated and is the separating step of a plurality of subimage signals; The storage controlled step of the subimage signal of each separation that control store is exported in separating step in a plurality of memory cell; Control store each number of sub images signal in memory cell is to a plurality of image displays or a plurality of output controlled step that is arranged in the output of the image display processing unit in the image display; And control is corresponding to the demonstration controlled step of the demonstration of the image of the total picture signal that is formed by whole subimages letter, and the output of this subimage signal is controlled in exporting controlled step; Wherein, under the situation that n image display or display processing unit are provided at least: in separating step, picture signal is separated and is n number of sub images signal; N storage device is provided; In the output controlled step, be controlled at storage and be stored in the output of n the subimage signal in the storage device in the controlled step, make the subimage signal output to n image display or display processing unit frame by frame with second frame rate of the 1/n that equals first frame rate from separately n storage device; And in showing controlled step, the demonstration of the image of the picture signal that control constitutes corresponding to the whole subimage signals that output to n image display or display processing unit in output in the controlled step makes corresponding to the image of the subimage signal that outputs to n image display or display processing unit the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

30. an image display system comprises: image processing equipment is used to handle picture signal; And image display, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: it is a plurality of subimage signals that separator, the picture signal with first frame rate that is used for will providing frame by frame separate; A plurality of storage devices are used to store the subimage signal by each separation of this separator output; Output-controlling device is used for a plurality of image displays are arrived in control store at each number of sub images signal of a plurality of storage devices output; And display control unit, being used to control demonstration corresponding to the image of the total picture signal that forms by whole subimage letters, the output of this subimage signal is controlled by output-controlling device; Image display comprises: a plurality of image display processors are used for providing image with dot sequency mode or line sequential system; And display unit, be used to show the image that provides by image display processor; At least n image display processor is provided; It is n number of sub images signal that this separator separates picture signal; N storage device is provided; The output of output-controlling device control subimage signal makes the subimage signal output to n image display processor from separately n storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that is made of the whole subimage signals that output to n image display processor, makes corresponding to the image of the subimage signal that outputs to n image display processor the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

31. image display system according to claim 30, wherein a plurality of image display processors are carried out this processing, and the site error between corresponding n the pixel of the image that the picture signal that making is provided from image processing equipment by the display unit basis shows is less than a pixel wide.

32. image display system according to claim 30, wherein: this first frame rate is 240Hz; This second frame rate is 60Hz; At least 4 image display processors are provided; And it is 4 subsignals that this separator separates picture signal; 4 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 60Hz, outputs to 4 image display processors from each 4 storage devices frame by frame.

33. image display system according to claim 30, wherein: this first frame rate is 250Hz; This second frame rate is 50Hz; At least 5 image display processors are provided; And it is 5 subsignals that this separator separates picture signal; 5 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 50Hz, outputs to 4 image display processors from each 5 storage devices frame by frame.

34. image display system according to claim 30, wherein: this first frame rate is 180Hz; This second frame rate is 60Hz; At least 3 image display processors are provided; And it is 3 subsignals that this separator separates picture signal; 3 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 60Hz, outputs to 4 image display processors from each 3 storage devices frame by frame.

35. image display system according to claim 30, wherein: this first frame rate is 150Hz; This second frame rate is 50Hz; At least 3 image display processors are provided; And it is 3 subsignals that this separator separates picture signal; 3 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 50Hz, outputs to 3 image display processors from each 3 storage devices frame by frame.

36. an image display system comprises: image processing equipment is used to handle picture signal; And a plurality of image displays, be used to show picture signal by image processing device processes; Wherein: image processing equipment comprises: it is a plurality of subimage signals that separator, the picture signal with first frame rate that is used for will providing frame by frame separate; A plurality of storage devices are used to store the subimage signal by each separation of this separator output; Output-controlling device is used for a plurality of image displays are arrived in control store at each number of sub images signal of a plurality of storage devices output; And display control unit, being used to control demonstration corresponding to the image of the total picture signal that forms by whole subimage letters, the output of this subimage signal is controlled by output-controlling device; Each image display comprises: image display processor is used for providing image with dot sequency mode or line sequential system; At least n image display is provided; It is n number of sub images signal that separator separates picture signal; N storage device is provided; The output of output-controlling device control subimage signal makes the subimage signal output to n image display processor from each n storage device frame by frame with second frame rate of the 1/n that equals first frame rate; And display control unit control is corresponding to the demonstration of the image of the picture signal that is made of the whole subimage signals that output to n image display processor, makes corresponding to the image of the subimage signal that outputs to n image display processor the initial moment of demonstration is moved a 1/n who scans the period to another frame from a frame when, show successively with dot sequency or line sequential system with second frame rate.

37. image display system according to claim 36, wherein each image display is to be used to rely on projection to form the projecting apparatus of image.

38. image display system according to claim 36, wherein a plurality of image display processors are carried out this processing, make site error between corresponding n the pixel of the picture signal that provides from image processing equipment less than a pixel wide.

39. image display system according to claim 36, wherein: this first frame rate is 240Hz; This second frame rate is 60Hz; At least 4 image displays are provided; And it is 4 subsignals that this separator separates picture signal; 4 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 60Hz, outputs to 4 image displays from each 4 storage devices frame by frame.

40. image display system according to claim 36, wherein: this first frame rate is 250Hz; This second frame rate is 50Hz; At least 5 image displays are provided; And it is 5 subsignals that this separator separates picture signal; 5 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 50Hz, outputs to 5 image displays from each 5 storage devices frame by frame.

41. image display system according to claim 36, wherein: this first frame rate is 180Hz; This second frame rate is 60Hz; At least 3 image displays are provided; And it is 3 subsignals that this separator separates picture signal; 3 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 60Hz, outputs to 3 image displays from each 3 storage devices frame by frame.

42. image display system according to claim 36, wherein: this first frame rate is 240Hz; This second frame rate is 60Hz; At least 4 image displays are provided; And it is 4 subsignals that this separator separates picture signal; 4 storage devices are provided; And the output of output-controlling device control subimage signal makes the subimage signal with the frame rate of 60Hz, outputs to 4 image displays from each 4 storage devices frame by frame.