CN101150742A

CN101150742A - A feasible free solid display terminal with built-in player

Info

Publication number: CN101150742A
Application number: CNA2007100583556A
Authority: CN
Inventors: 李昌
Original assignee: TIANJIN 3D IMAGING TECHNOLOGY Co Ltd
Current assignee: TIANJIN 3D IMAGING TECHNOLOGY Co Ltd
Priority date: 2007-07-23
Filing date: 2007-07-23
Publication date: 2008-03-26

Abstract

A practical auto-stereoscopic display terminal of an embedded player is characterized in that the auto-stereoscopic display terminal is composed of an embedded computer mainboard, an embedded computer mainboard power supply, an embedded computer mainboard cooling fan, an embedded computer mainboard power supply cooling fan, an embedded DVI data transmission cable, a liquid crystal or plasma panel display, a stereo imaging slit raster or a stereo imaging concave-cylinder, multiviewpoint auto-stereoscopic images, an external connecting mouse, an external connecting keyboard and an external connecting network.

Description

A kind of free stereo display terminal of practicality with built-in player

The free stereo display terminal is a kind ofly need not wear the device that special spectacles just can be watched stereopsis, since the appearance, has been widely used in the advertisement media field.This device has plenty of that slit grating realizes by installing on flat-panel monitor, have plenty of also that the erection column runner plate is realized on flat-panel monitor.Image file is a special facture, is to be formed by the multi-view image coding of making according to certain rule.The observer watches this stereo-picture by grating or cylindrieal lens plate, because blocking or the refraction action of post mirror of grating makes observer's left eye see the image with different parallaxes with right eye, therefore forms stereoscopic vision.

A computer becomes the player of this free stereo display terminal, and it is made of hardware and software two parts usually.Because the volume of computer is bigger,, bring inconvenience therefore for use, debugging and installation with many connecting lines are arranged again between the free stereo display terminal.

The user constantly proposes the product requirement to the free stereo display terminal with built-in player function, and many manufacturers also develop at active development, but does not have the practical free stereo display terminal with embedded playing function to come out so far.

The present invention proposes a kind of free stereo display terminal of practicality with built-in player.This terminal has comprised embedded computer free stereo image playing function and free stereo image Presentation Function, and reaches the level of complete practicability.

Below in conjunction with accompanying drawing the present invention is elaborated.

Fig. 1 is a kind of entire block diagram with free stereo display terminal of built-in player.

The 1st, embedded computer board, has digital DVI vision signal playing function, the 2nd, hot-swappable USB interface keyboard, the 3rd, hot-swappable usb mouse, the 4th, hot swappable CD drive, the 5th, hot swappable USB portable hard drive, the 6th, wired or wireless network data transmission device, the 7th, power supply, the 8th, free stereo image display terminal, the 9th, free stereo image.Wherein the 1,7, the 8th, fully integratedization, and other parts all are movably, such as when the commissioning device, keyboard 2 and mouse 3 are inserted, after debugging finishes, can pull out.The user can certainly adopt Wireless Keyboard and wireless mouse for convenience.4,5,6 all to read in various view data and use, to give birth to a level driver in order changing sometimes, also can directly read in from USB flash disk.Long-distance Control can be realized by 6, also the Long-distance Control of getting online without being tethered to a cable can be realized.View data can be directly by in the 6 long distance wireless input computer 1, also can be with 6 realizations to 1 remote activation and various controls.10 is digital video signal transmission wire, and it is transferred to one group of DVI signal the image input interface of free stereo display terminal.The 8th, the free stereo image display terminal is made of liquid crystal or plasma display, back light, drive circuit, stereo-picture grating or stereo-picture cylindrieal lens plate.

Fig. 2 is the supplementary notes that have the free stereo display terminal of built-in player to this.The 8th, the free stereo display terminal, embedded computer is installed in wherein.The 11st, supply with 8 power supply.In a side of free stereo display terminal, 4 USB interface and a network interface are arranged.Wherein 2 connect mouse, 3 connect keyboard, and 4 connect removable CD, and 5 connect removable hard disk, the 6th, network interface.

Fig. 3 is this cut-away view with free stereo display terminal of built-in player.The 19th, have the free stereo display terminal of built-in player, the 11st, be the power supply of this terminal power supply, the 12nd, be the power circuit of dull and stereotyped auto-stereoscopic display drive circuit and back light circuit supply specially, the 13rd, drive the drive circuit of dull and stereotyped auto-stereoscopic display back light, the 16th, the drive signal interface of dull and stereotyped auto-stereoscopic display spare, the 15th, be the power supply of embedded computer board power supply specially, wherein Yuan Xing part is a cooling fan, the 1st, embedded computer board, the 17th, be the fan of this mainboard heat radiation, the 18th, the digital free stereo image signal of the video card output on this mainboard, by DVI interface or the output of HDMI interface, insert the DVI input or the HDMI input of dull and stereotyped free stereo television terminal, 2,3,4,5, be external 4 USB interface of embedded computer board, connect external mouse respectively, keyboard, CD-ROM drive, portable hard drive, the 6th, network interface can wired or wireless online communication.

Fig. 4 is the stereo display explanation partly that has the free stereo display terminal of built-in player to this.The 20th, the back light of flat-panel monitor, the 13rd, the driving signal of telecommunication of this back light, the 21st, flat-panel monitor, it can be LCD, also can be plasma display, the 16th, the image driver circuitry of this flat-panel display device, the 22nd, three-dimensional imaging grating or three-dimensional imaging cylindrieal lens plate.Under 13 driving, 20 beginnings are luminous, this light projects in observer's the eye through flat-

panel display device

21,21 under 16 driving, the light transmission rate of each pixel changes according to the light and shade situation of shown image, strong and weak variation also can take place when the light intensity of back light is by these pixels like this, make the observer can see the image that light and shade changes, in addition, each pixel all is by red, green, blue, three sons constitute as pixel, and their various combinations in brightness have constituted the colour of each pixel again.In flat-panel display device 21, display unit is a pixel, and each pixel is made of three sub-pixels, and they are red pieces pixel 23, green sub-pixel 24, blue sub-pixel 25.The pixel of only drawing among the figure, actual conditions are that each flat-panel display device all has millions of pixels, are 1366 * 768 flat-panel display device such as a resolution, its sum of all pixels is 1049088.The 22nd, three-dimensional imaging grating, or three-dimensional imaging cylindrieal lens plate, the 28th, the slit of grating, or the post mirror of cylindrieal lens plate.If an image sub-pixel with 23 reflection right eyes, an image sub-pixel with 24 reflection left eyes, then because the effect of three-dimensional imaging grating 22, after 23 and 24 light that send are through 28, can arrive observer's right eye and left eye respectively, thereby making the observer see a stereo-picture pixel, numerous such stereo-picture pixel will constitute a secondary complete stereo-picture.A distance 29 is arranged between 22 and 21, and it can guarantee that the observer sees best stereo-picture in a definite viewing distance.

Fig. 5 illustrates the coded system of the stereo-picture of this free stereo display terminal with built-in player.30,31,32,34th, with certain constant spacing 35 placed cameras, can be video camera, the also virtual video camera in the Computer Image Processing software.The 29th, the target that is taken, all video camera all will converge on the same point of the target that is taken.The quantity of these video cameras is uncertain, if the number of video camera is more, the visual angle of the free stereo image of Huo Deing is just big so, the stereoeffect of image is just more level and smooth, the head that moves horizontally us as us is watched scenery: if the step-length that moves is very little, the image of seeing is unusual continuously smooth just, if the moving of great-jump-forward, the image that we see certainly will be discontinuous, also can't be level and smooth.Many but if video camera is provided with, also just high to the requirement of display resolution, consider cost performance, under the display resolution of existing flat-panel monitor, the video camera number that generally can get is 2,3,4,5,6,7,8,9.If the number that video camera is got more than more than 9, even if then adopt the flat-panel monitor (1920 * 1080) of high definition resolution, also can only obtain about 800 * 600 three-dimensional image effect.

36, the 37,38,39, the 40th, the image of the scenery that video camera photographs, therefore these images exist the horizontal parallax of image different owing to there is distance 35 between each video camera, and this is the basic element that forms stereo-picture.Notice that these images all are made of numerous pixel, and each pixel is made of red pieces pixel, green sub-pixel, blue sub-pixel.Such image sequence can be different numbers, and we adopt 5 video cameras at this for convenience of description.

Fig. 6 has illustrated that these images with parallax are that how to be synthesized be a width of cloth stereo-picture.36, the 37,38,39, the 40th, the separated by a distance 35 one group of image that photographs simultaneously, because video camera has certain spacing, so these images exist parallax different.These images are all reflected by pixel, suppose that horizontal pixel has 1280, and vertical pixel has 1024, and it is 1310720 that each width of cloth image contains sum of all pixels.Wherein each pixel is made of three horizontal sub-pixels, so has 3840 sub-pixels on the horizontal direction, has 1024 sub-pixels on the vertical direction.Total number of sub-pixels is 3932160.We extract the sub-pixel of the row of the 1st in 36,37,38,39,40 respectively, horizontally become 51.Use the same method, the 2nd row, the 3rd in 36,37,38,39,40 are listed as, extract until the 3840th sub-pixel that is listed as, arrange, finally form a width of cloth new images 52 according to 51 mode.Obviously, the horizontal size 48 of this width of cloth image goes out 5 times of original images greatly, but vertical dimension 49 does not change.In order to guarantee that this width of cloth image is the same with original image on level and vertical ratio, Figure 52 need be amplified 5 times in vertical direction, form Figure 42.Such 48 is just the same with former figure with 50 ratio.42 is exactly synthetic good stereo-picture, if we are called the sequence image with parallax with 36,37,38,39,40,42 is exactly that a width of cloth is by the synthetic stereo-picture of these sequence images so.A slit grating or cylindrieal lens plate are placed on this width of cloth stereo-picture, just can have seen the real stereoeffect of this width of cloth stereo-picture.Certainly, the optical parametric of this slit grating or cylindrieal lens plate should be complementary with this width of cloth stereo-picture.Synthetic above-mentioned stereo-picture can be realized by various mapping softwares, also can realize by writing special application program.

Fig. 7 illustrates that the optical parametric of slit grating or cylindrieal lens plate is with the relation that shows between the stereo-picture.36, the 37,38,39, the 40th, the display unit of the sequence chart of taking by five video cameras that shows with sub-pixel; The 55th, slit grating, the 56th, the transmissive slit of grating, the 57th, the cycle of slit grating; The 53rd, observer's left eye, the 54th, observer's right eye; The 58th, slit grating is to the distance between the display unit.Because distance between the sub-pixels such as the geometrical relationship between 58 and 57 and 36 and 37 and the distance between observer's eyes, also have the observer to the distance between the display screen under certain determines numerical value, make observer's left eye 53 can only see sub-pixel 37, and right eye 54 can only be seen sub-pixel 36.If the observer moves horizontally left, then left eye 53 may see 38,39,40 successively; And right eye 54 can see 37,38,39 successively; So just can guarantee that the observer always can see a pair of suitable anaglyph in certain visual angle, obtain desirable stereoscopic vision.If the observer continues horizontal movement left, the relation of then inspecting is opposite, and the observer will see an anti-phase stereo-picture, continue left, and then stereo-picture recovers normal again.We said the front, and image represents that with sub-pixel this mainly is to make full use of pixel count limited in the flat-panel monitor, wish to obtain maximum stereo-picture resolution with limited pixel count,

Fig. 7 illustrates how to utilize oblique raster to realize that the full color free stereo shows.Owing to utilized sub-pixel to show every width of cloth image, what will make that eyes see may be the red pieces pixel, may be green sub-pixel and the another eyes are seen, can't see the three primary colors pixel simultaneously, and distortion appears in the color relation of stereo-picture like this.How to address this problem? if the slit of grating is inclined to 60 appearance, not only comprise the red pieces pixel among 36 figure that make observer's eyes see by slit, the blue sub-pixel that also comprises the second row reflection 36 comprises that also the third line reflects 36 green sub-pixel; And observer's another eyes are not only seen the green sub-pixel of first row by the narrow grating that meets, and have also seen the red pieces pixel of second row, have seen the blue sub-pixel of the third line.So, the observer not only can see stereo-picture, and can see the stereo-picture of full color.Certainly, the narrow angle of inclination of meeting and the pixel of how to settle different rows are different for the expression of different sequence images, and multiple set-up mode can be arranged.Owing to adopted oblique raster, not only can obtain desirable color solid image, and can effectively eliminate Moire fringe and disturb.The 62nd, the baseline of reflection horizontal pixel, the 61st, the angle of oblique raster.The 63rd, according to the narrow part meeting grating of inclination of this principle making.Special needs to be pointed out is: narrow to meet grating and the cylindrieal lens plate operation principle in stereo display be duplicate, just cylindrieal lens plate can be assembled more rays by cylindrical mirror, make display brightness increase, so we do not do more description to the cylindrieal lens plate three-dimensional imaging.

Fig. 9 a, Fig. 9 b, Fig. 9 c are examples of implementation.The 65th, the model of producing in Korea S Samsung is the free stereo display terminal cut-away view with built-in player that is transformed on 40 inches monitor bases of liquid crystal of 400PX.The 1st, model is the computer embedded main board of COLORFULINTELLIGENT MOTHERBOARD, the 17th, the mainboard cpu cooling fan, the 15th, computer power supply power supply and cooling fan, the 64th, USB interface, network interface and embedded computer switch, the 66th, hard disk, playout software and the free stereo program that needs to play leave in this hard disk, and the 13rd, the LCD backlight drive circuit, the 68th, reinforced support, the 69th, anti-tampering shielded metal net.The 70th, this has the free stereo display terminal back view of built-in player, the 71st, the suction opeing of embedded computer cooling fan, the 72nd, the cooling suction opeing of embedded computer power supply, the 73rd, the digital video signal cable, it passes through the digital video signal input of this cable transmission to LCD with the three-dimensional image signal of computer output, the 69th, USB interface, network interface and computer power switch are received USB interface keyboard and usb mouse respectively.Fan is that the cold air suction machine intimate of outside is discharged hot-air at the top vent by cabinet.After debugging finishes, keyboard and mouse can be pulled out.The 100th, be placed on the grating in above-mentioned flat-panel monitor the place ahead.This grating is made of transparent stripe and opaque striped, and these stripeds are parallel to each other fully, and there is angle in the direction of striped with the vertical direction of flat-panel monitor pixel, this angle be 12.30 spend to 12.80 the degree between, the best be 12.50 the degree.The cycle of striped (LPI) is between the per inch 15.090 to 15.100, and optimal period is 15.095.The cycle of striped is along with the perpendicular direction calculating of stripe direction.The height of 110 these gratings of expression is 530 millimeters, and the width of 120 these gratings of expression is 920 millimeters.The opaque striped of 180 expressions is a black.190 expression transparent stripes are white.The line that 200 expressions parallel with pixel level direction in the flat-panel monitor, the line that 160 expressions parallel with pixel vertical direction in the flat-panel monitor, 130 expression grating orientations are with the angle that exists between 160, and this angle is 12.30 to spend between 12.80 degree, and the best is 12.50 degree.170 expressions are with the perpendicular line of grating parallel direction, it is 90 degree with the angle 110 of grating, the width of 150 expression transparent stripes, the width of the opaque striped of 140 expressions, their ratio was less than 1: 8, direction along 170, the cycle of striped (LPI) is between the per inch 15.090 to 15.100, optimal period is 15.095.In order to obtain best stereo-picture definition, eliminate in vertical direction melt the picture error, transparent stripe should be tried one's best smoothly, the resolution realization that this can be when improving preparing grating.Grating can two kinds be realized by photomechanical method, the first is at first made raster film, with its stack pile be then between 2 millimeters to 5 millimeters optical glass by the ultra-violet curing clear binder bonding, to the gas between film and the glass be got rid of fully by cold press when bonding, be placed on irradiation under the intensive ultraviolet then, make the adhesive finish-drying.Another kind method is that directly photoresists to be coated on thickness be on the optical glass between 2 millimeters to 5 millimeters, according to above-mentioned grating parameter, directly to form grating at this exposure image on glass.But the size of this grating is greater than the apparent size of flat-panel monitor, and horizontal direction is 920 millimeters, and vertical direction is 530 millimeters.The one side facing to the flat-panel monitor display image that raster film is arranged in the grating, or will an one side facing to the flat-panel monitor display image of photoresists be arranged in the grating.Grating is 10 millimeters with the distance of flat-panel monitor.The 290th, the fuselage of flat-panel monitor, and 270 are display screens of this flat-panel monitor.The 280th, thickness 300 is 10 millimeters packing ring, and this gasket rings is around this flat-panel monitor, and has ventilation hole, ventilation hole to be placed in four jiaos of packing ring, can shed from these ventilation holes to guarantee the heat on the liquid crystal display screen.The 230th, original screen panel, the one side 220 that film or light-sensitive surface are wherein arranged is towards display screen 270.The 230th, the glass of grating, it is towards spectators.230 one side is coated with anti-reflection film, to alleviate the light transmission rate that comes extraneous reflective and lifting grating.

In 4 meters to 5 meters the distance, the observer can see desirable stereo-picture, can satisfy the basic demand that free stereo image is play in advertisement in this free stereo display terminal the place ahead with built-in player of distance.

Claims

1. the free stereo display terminal with built-in player of a practicality.It is characterized in that this free stereo display terminal is made of embedded computer board, embedded computer board power supply, embedded computer board cooling fan, embedded computer board power supply cooling fan, embedded DVI data cable, liquid crystal or plasma flat-panel display, three-dimensional imaging slit grating or three-dimensional imaging post mirror, multi-view auto stereo-picture, circumscribed mouse, external connection type keyboard and circumscribed network connector.

2. the embedded computer board described in the claim 1, it is characterized in that having adopted COLORFUL INTELLIGENT MOTHERBOAED series mainboard, this mainboard is settled away from the LCD backlight power supply, the main board power supply power supply is placed in the upper end of LCD, cooling fan is from the outside suction cold air of free stereo display terminal, get rid of hot-air from the display terminal upper discharge hole, this mainboard adopts embedded digital video card, with DVI mode output digital image signal, this signal is directly inputted to the DVI input terminal of LCD, this embedded computer has the USB mouse interface, keyboard interface and network interface, and all be installed in LCD inside.

3. liquid crystal described in the claim 1 or plasma flat-panel display, it is characterized in that having 1366 horizontal pixels, 768 vertical pixels, or 1920 horizontal pixels, 1080 vertical pixels or 1920 horizontal pixels, 1200 vertical pixels, this LCD has point-to-point demonstration digital picture function, can be by the DVI data-driven or by the HDMI data-driven.

4. the LCD described in the claim 1 is characterized in that Korea S's Samsung produces 400PX type LCD.

5. the three-dimensional imaging grating described in the claim 1, it is characterized in that this grating tilts, utilize oblique raster to show and the interference of elimination Moire fringe to obtain the full color free stereo, the design of oblique raster must guarantee that the observer is when watching free stereo image, every eyes can be seen three primary color sub-pixels of same width of cloth figure in vertical direction, and can only see the primary color sub-pixels of same width of cloth figure in the horizontal direction.

6. the grating described in the claim 1 is characterized in that this grating is to be stained with to connect with ultraviolet freezing plastic with the optical glass with anti-reflection function by raster film to form, and film is simultaneously aimed at the flat panel display screen, and glass is simultaneously aimed at the observer.

7. the grating described in the claim 1, the cycle that it is characterized in that grating is between the per inch 15.090 to 15.100, and optimal period is 15.095, and the inclination angle of grating is 12.30 to spend between 12.80 degree, and the best is 12.50 degree.

8. the grating described in the claim 1 is characterized in that, this grating can guarantee that with there being ventilating heat dissipating hole between the liquid crystal display screen heat of liquid crystal display screen can shed by these louvres.

9. circumscribed mouse and the external connection type keyboard described in the claim 1 is mouse and the keyboard with USB interface, has the hot plug function, it can be pulled out after free stereo image debugging finishes and do not influence the broadcast of free stereo image.

10. the free stereo image described in the claim 1, its feature is in the sequence image of a some, extract the row that every width of cloth has the different image of different parallaxes successively, extract successively with its sub-pixel, rather than extract with complete pixel, can improve the resolution of stereo-picture like this.

11. the free stereo image described in the claim 1 is characterized in that this image will be enlarged into the multiple of sequence image number in vertical direction, one guarantees that this free stereo image has with the duplicate length-breadth ratio of sequence image.

12. the free stereo image described in the claim 1, if adopt oblique raster to carry out auto-stereoscopic imaging, then in sequence image, extract in the process of sub-pixel, making left eye see through sub-pixel that slit grating sees is that sequence sub-pixel by the red, green, blue of same width of cloth image constitutes in vertical direction, and right eye to see through sub-pixel that slit grating sees also be that sequence sub-pixel by the red, green, blue of same width of cloth image constitutes in vertical direction, but the three primary colors ordering of these sub-pixels can be different.

13. three-dimensional imaging grating described in the claim 1 and three-dimensional imaging post mirror have the duplicate cycle, also have duplicate angle of inclination.

14. the free stereo image in the claim 1 is characterized in that can realizing by computer graphics software the synthetic of sequence image of some, also can work out the special-purpose computer image processing program and realize.