CN100480779C

CN100480779C - Practical free stereo displaying technology

Info

Publication number: CN100480779C
Application number: CNB2006100138835A
Authority: CN
Inventors: 李昌
Original assignee: TIANJIN THREE-DIMENSION DISPLAY TECHNOLOGY Co Ltd
Current assignee: TIANJIN THREE-DIMENSION DISPLAY TECHNOLOGY Co Ltd
Priority date: 2006-05-29
Filing date: 2006-05-29
Publication date: 2009-04-22
Anticipated expiration: 2026-05-29
Also published as: CN101029970A

Abstract

A practical free stereo-displaying technique includes setting the grating designed with certain cycle and certain fringe at front-end of flat display designed with relevant resolution and relevant pixel in distance of 2mm to display screen, setting size of said grating to be greater than visual size of said flat display in level direction of 418mm and in vertical direction of 316mm.

Description

A kind of practical free stereo displaying technology

Freedom tridimensional imaging technique is along with the development of high resolution flat display technique more and more is subject to people's attention, the technology and the means of various demonstration free stereo images occur one after another, as utilize cylindrieal lens plate on flat-panel monitor, to show free stereo image, utilize grating on flat-panel monitor, to show free stereo image.But at the flat-panel monitor of determining parameter, how to make that the design of cylindrieal lens plate and grating is more accurate, make it to present more perfect three-dimensional image effect, utilize which kind of manufacture craft, make it to have more practicality, become the developing important technological problems of freedom tridimensional imaging technique.

The present invention proposes a kind of freely stereopicture display process that utilizes the grating of particular design at the flat-panel monitor realization auto-stereoscopic imaging of special parameter.

The present invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is LCD or the plasma display with special parameter.Its resolution is 1600 pixels of level, vertically is 1200 pixels, and each pixel is of a size of 0.255 millimeter of level, vertical 0.255 millimeter.Dot structure is that horizontal direction is that RGB is arranged, and every row has only three RGB sub-pixels, and the height of each sub-pixel is 0.255 millimeter, and the width of each sub-pixel is 0.085 millimeter, and three sub-pixels constitute a pixel, and width is 0.255 millimeter.Visual 408 millimeters of the levels that are of a size of of LCD or plasma display, vertical 306 millimeters.

The flat-panel monitor of this special parameter of the expression of 1 among Fig. 1, it can be a plasma display, also can be LCD.The 2nd, represent the pixel in this flat-panel monitor, because pixel is a lot, in order to express easily, that here each pixel is all drawn is very big, and actual pixels is very little, and naked eyes almost be can't see.The 3rd, show that must there be 1600 fixing pixels in the horizontal direction in this flat-panel monitor, 4 show that must there be 1200 pixels in vertical direction in this flat-panel monitor.Each pixel constitutes by the sub-pixel red, green, blue, and the height of 5 expression red, green, blue pixels is 0.255 millimeter, and the overall width of 6 expression red, green, blue pixels under horizontally is 0.255 millimeter, and the distance between them is divided equally.

Fig. 2 is the grating that is placed on above-mentioned flat-panel monitor the place ahead.This grating is made of transparent stripe and opaque striped.The width of transparent stripe and the width of opaque striped ratio are less than 1/8, these stripeds are parallel to each other fully, there is angle in the direction of striped with the vertical direction of flat-panel monitor pixel, and this angle is-21.45 to spend between-21.55 degree, and the best is-21.50 to spend.The cycle of striped (LPI) is between the per inch 37.85 to 37.95, and optimal period is 37.90.The cycle of striped is along with the perpendicular direction calculating of stripe direction.

Among Fig. 2 10 represents grating, and the height of 11 these gratings of expression is 316 millimeters, and the width of 12 these gratings of expression is 418 millimeters.The opaque striped of 18 expressions is black.19 expression transparent stripes are white.The line that 20 expressions parallel with pixel level direction in the flat-panel monitor, the line that 16 expressions parallel with pixel vertical direction in the flat-panel monitor, 13 expression grating orientations are with the angle that exists between 16, and this angle is-37.85 to spend between-37.95 degree, and the best is-37.90 to spend.17 expressions are with the perpendicular line of grating parallel direction, it is 90 degree with the angle 11 of grating, the width of 15 expression transparent stripes, the width of the opaque striped of 14 expressions, their ratio is less than 1:8, direction along 17, the cycle of striped (LPI) is between the per inch 37.85 to 37.95, optimal period is 37.90.Need to prove that said negative angle is that explanation angle 13 is to calculate counterclockwise with respect to perpendicular line 16 here.

In order to obtain best stereo-picture sharpness, 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.

Fig. 3 shows the method for making of this 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 1 millimeter to 3 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 chilling press when bonding, be placed on irradiation under the intensive ultraviolet then, make the bonding agent finish-drying.Another kind method is that directly photoresists to be coated on thickness be on the optical glass between 1 millimeter to 2 millimeters, according to above-mentioned grating parameter, directly at this exposure image on glass, to form grating.

But the size of this grating is greater than the apparent size of flat-panel monitor, and horizontal direction is 418 millimeters, and vertical direction is 316 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 2 millimeters with the distance of flat-panel monitor.

The grating that 22 expressions complete according to the optical property parameter of above-mentioned grating with film, require this film smooth, transparent part has extraordinary transmitance, and opaque part will have good blocking ability to light, and the thickness of film is between 0.1 millimeter to 0.3 millimeter.23 expression optical glass, thickness is between 1 millimeter to 3 millimeters.The 24th, the ultra-violet curing clear binder, it is coated on glass equably, be bonded on 23 22, and put into the nip roll 24 of chilling press, they rotate according to 25 direction, so just the air between film 22 and the glass 23 can be got rid of totally, again this grating is placed on irradiation drying under the strong ultraviolet light.

Fig. 4 illustrates grating is how to be placed on the flat-panel monitor.Grating has two-layer, and wherein one deck is the film grating layer, or the light-sensitive surface grating layer, and another layer is a glassy layer.To have the one side of film grating layer to aim at flat panel monitor, and maintenance keeps 2 mm distance with the monitor video picture, this distance is by being installed in packing ring realization on the flat-panel monitor edge.Packing ring is with fixing by powerful double-sided adhesive between the flat-panel monitor, and packing ring is fixed with the also logical not dried double faced adhesive tape of brute force between the grating.Last packing ring is fixedly securing with flat-panel monitor by steady arm, with the vibration effect that produces in avoiding transporting grating concern with the position between the flat-panel monitor.

The 29th, the fuselage of flat-panel monitor, and 27 are display screens of this flat-panel monitor.The 28th, thickness 30 is 2 millimeters packing ring, and this gasket rings is around this flat-panel monitor.The 23rd, original screen panel, the one side 22 that film or light-sensitive surface are wherein arranged is towards display screen 27.The 23rd, the glass of grating, it is towards spectators.23 one side is coated with anti-reflection film, to alleviate the bare headed transmitance of coming extraneous reflective and lifting grating.

Fig. 5 is how the free stereo image that explanation shows on above-mentioned free stereo image display generates.Since 32,,, they can be processed as a three-dimensional frame by image process method up to 39 being 9 three-dimensional sequences figure with different parallaxes.Utilize grating 10 as the light sieve, respectively these 9 stereographic map sequences are sifted out.At first, obtain 40,, continue sieve 33, obtain 41, grating along the horizontal direction of the grating distance of a transparent stripe of displacement again, is continued sieve 34 then with the distance of grating along a transparent stripe of horizontal direction displacement of grating with grating 10 sieve Figure 32, to 42.Last secondary Figure 47 with this three-dimensional frame sifts out like this.The figure that sifts out is superimposed together forms a free stereo image frame 48, and this two field picture is put into flat-panel monitor demonstrations of getting on, and just can see stereo-picture through grating.Certainly, here said light sieve, be a kind of image processing method: utilize grating 10 to make the light sieve and remove to handle image, just mean the place to this grating transparent stripe with a secondary figure, the permission image passes through, and, just do not allow image to pass through facing to the opaque place of grating, be equivalent to image has been done a filtering according to the optical texture of grating.Everything can be finished by simple image processing software, as utilizes Photoshop software to finish.Show that if want the free stereo of realizing dynamic image it is just passable only different sequence motion free stereo images need to be handled the sequence free stereo image frame that is associated.

One of embodiment can make auto-stereoscopic display with ViewSonic VP201b liquid crystal TV set.This monitor resolution is level 1600 pixels, vertical 1200 pixels.The wide 0.255mm of pixel, the high 0.255mm of pixel.Visual horizontal 408mm, the vertical 306mm of being of a size of.The middle to specifications designated parameters of grating parameter then can obtain desirable free stereo image.

Three of embodiment after can utilizing Korea S gulf LG company to produce 20 cun liquid crystal displays of LM201U04 to install driving circuit additional, implements foregoing invention.Because the parameter of this liquid crystal display is: level 1600 pixels, vertical 1200 pixels.The wide 0.255mm of pixel, the high 0.255mm of pixel.Visual horizontal 408mm, the vertical 306mm of being of a size of.

Claims

1. method of utilizing the preparing grating of the flat-panel monitor of special parameter and supporting with it special parameter and showing free stereo image, the feature of this method is: the horizontal resolution of this flat-panel monitor is 1600 pixels, vertical resolution is 1200 pixels, visual 408 millimeters of the levels that are of a size of, vertically be 306 millimeters, Pixel Dimensions is 0.255 millimeter of a level, vertical 0.255 millimeter, the cycle of grating is between per inch 37.85 to 37.95, the width of grating transparent stripe and the width of opaque striped ratio are less than 1/8, grating has an angle at stripe direction with the vertical direction of flat-panel monitor, this angle is between-21.45 degree and-21.55 degree, grating is placed on the front end of flat-panel monitor, but the display screen apart from flat-panel monitor has 2 mm distance, but the size of grating is 418 millimeters of levels, vertical 316 millimeters greater than the apparent size of flat-panel monitor;

The image that on described flat-panel monitor, shows, be to utilize described grating to sieve as light, to be no less than stereo-picture that 8 width of cloth have the sequence parallax respectively and sift out that stack again forms, described raster order is handled the sequence stereo-picture, and grating obtains a three-dimensional sequences figure along the distance of a transparent stripe of the every displacement of the horizontal direction of grating, with the three-dimensional sequences figure stack of sifting out, form free stereo image, this image is put into flat-panel monitor demonstrations of getting on, can see stereo-picture through grating.

2. according to the making of claim 1 and the method for demonstration free stereo image, it is characterized in that: grating is to be bonded in thickness on the optical glass 1 millimeter to 2 millimeters by raster film by the ultraviolet curing translucent adhesive, and the one side that is stained with raster film is aimed at the display screen of flat-panel monitor.

3. according to the making of claim 1 and the method for demonstration free stereo image, it is characterized in that: grating is to be formed after the exposure imaging photographic fixing by the optical glass that is coated with photoresists, and it has a display screen facing to flat-panel monitor of light-sensitive surface.

4. according to the making of claim 1 with show the method for free stereo image, it is characterized in that: grating is to be bonded on the high 2 millimeters packing ring by powerful double faced adhesive tape, and packing ring is to be bonded on the display screen of flat-panel monitor by powerful double faced adhesive tape.

5. according to the making of claim 2 and the method for demonstration free stereo image, it is characterized in that: the bonding between raster film and the optical glass is by ultraviolet curing transparent adhesive tape adhesive bond and through the roll row deacration of colding pressing, after the strong ultraviolet radiation drying.