CN104243960A - Liquid crystal box and polarizer based integral imaging double-vision 3D (three dimensional) display - Google Patents
Liquid crystal box and polarizer based integral imaging double-vision 3D (three dimensional) display Download PDFInfo
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- CN104243960A CN104243960A CN201410537591.6A CN201410537591A CN104243960A CN 104243960 A CN104243960 A CN 104243960A CN 201410537591 A CN201410537591 A CN 201410537591A CN 104243960 A CN104243960 A CN 104243960A
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Abstract
The invention provides a liquid crystal box and polarizer based integral imaging double-vision 3D (three dimensional) display which comprises a 2D (two dimensional) display screen, a first polarizer array, a liquid crystal box, a microlens array and a second polarizer array. The 2D display screen, the first polarizer array and the liquid crystal box are attached closely, and the 2D display screen is arranged on a rear focal plane of the microlens array; the microlens array is closely attached to the second polarizer array; array units of a micro-image array, the first polarizer array, the microlens array and the second polarizer array displayed on the 2D display screen are precisely matched and in center alignment.
Description
Technical field
The present invention relates to 3D and show field, or rather, the present invention relates to integration imaging 3D technology, espespecially based on the integration imaging double vision 3D display of liquid crystal cell and polaroid.
Background technology
Integration imaging 3D technology is a kind of without the need to any true 3D technology helping the equipment of looking.This technology has the feature of bore hole viewing, and its shooting is relative with the process of display simple, and can show the 3D rendering of full parallax and authentic color, is one of hot research technology in current 3D Display Technique.The shooting process 10 of this technology and procedure for displaying 11 are as shown in Figure 1.Shooting process 10 adopts microlens array 2 pairs of 3D scenes 101 record and be saved on image recorder 4, microlens array 2 by many lens cells in the horizontal and vertical directions parallel arranged form, the image primitive also obtained by each lens cells record therefore image recorder 4 preserved is micro-pattern matrix 3 of forming of parallel arranged in the horizontal and vertical directions.Procedure for displaying 11 is the inverse process of shooting process 10, carries out light field reconstruction by microlens array 2 to micro-pattern matrix 3, thus the 3D scene 101 of reproducing shooting.
Integration imaging 3D display adds that microlens array forms before 2D display device.Due to the periodic arrangement of image primitive in lens cells in microlens array and micro-pattern matrix, there is the viewing vision area of multiple repetition in integration imaging 3D display.Be the viewing vision area schematic diagram that integration imaging 3D shows as shown in Figure 2, primary vision area 61 and time vision area 62 see the image information of same image primitive respectively through adjacent two lens cells, there is a crosstalk zone 63 between two vision areas.Due in adjacent viewing vision area it is seen that the existence of the content repeated completely and viewing crosstalk zone, thus have impact on the viewing effect of integration imaging 3D display.
Double vision display is the novel display of one occurred in recent years, it passes through picture/program that display two is different simultaneously on one display, beholder on different view direction can only see one of them picture/program, thus realizes the different demands simultaneously meeting multiple beholder on one display.
Summary of the invention
The invention provides a kind of integration imaging double vision 3D display based on liquid crystal cell and polaroid, comprising: 2D display screen, the first polaroid array, liquid crystal cell, microlens array and the second polaroid array.2D display screen, the first polaroid array and liquid crystal cell three are close to, and 2D display screen is placed on the back focal plane of microlens array.Microlens array and the second polaroid array are close to.2D shows each array element exact matching of micro-pattern matrix of screen display, the first polaroid array, microlens array and the second polaroid array and center alignment.
Wherein, the thickness of described liquid crystal cell is less than the focal length of described microlens array lens cells
f.
Wherein, the polaroid unit in described first polaroid array and described second polaroid array has identical Structural assignments, and all adopt parallel arranged on horizontal and vertical direction, the polarization direction of adjacent two polaroid units is orthogonal.
A kind of integration imaging double vision 3D display based on liquid crystal cell and polaroid provided by the invention, by refreshing the yawing moment of liquid crystal molecule in described liquid crystal cell and the display image of 2D display screen described in synchronous refresh, realize primary vision area and time vision area alternately plays different 3D programs.Double vision 3D display of the present invention divides following two operating state: operating state I and operating state II.
Operating state I: liquid crystal cell applies driving voltage, the light that 2D display screen sends polaroid unit in the first polaroid array is linear rises partially, through liquid crystal cell, yawing moment does not change, after lens cells refraction, and positive corresponding polaroid unit outgoing with it from the second polaroid array, form primary vision area image, and the light of adjacent polarizer unit outgoing is obstructed from the second polaroid array, secondary vision area picture drop-out, now 2D display screen displaying contents is 3D program I;
Operating state II liquid crystal cell does not apply driving voltage, the light that 2D display screen sends polaroid unit in the first polaroid array is linear rises partially, there are 90 ° of rotations by polarization direction during liquid crystal cell, after lens cells refraction, from the second polaroid array, the outgoing of adjacent polarizer unit, forms time vision area image, is obstructed in the place of polaroid unit that the light due to direct projection direction is just corresponding with it in the second polaroid array, primary vision area picture drop-out, now 2D display screen displaying contents is 3D program II.
A kind of integration imaging double vision 3D display based on liquid crystal cell and polaroid that the present invention proposes, by switch operating state I and the operating state II of sequential, plays while achieving two cover 3D programs, namely achieves double vision 3D Presentation Function.
Accompanying drawing explanation
Accompanying drawing 1 is the principle schematic of integration imaging 3D technology
The viewing vision area schematic diagram that accompanying drawing 2 shows for integration imaging 3D
Accompanying drawing 3 is the layer of structure figure schematic diagram of the integration imaging double vision 3D display based on liquid crystal cell and polaroid of the present invention
Accompanying drawing 4 is the Structural assignments schematic diagram of the integration imaging double vision 3D display first polaroid array based on liquid crystal cell and polaroid of the present invention
Accompanying drawing 5 is the Structural assignments schematic diagram of the integration imaging double vision 3D display second polaroid array based on liquid crystal cell and polaroid of the present invention
Accompanying drawing 6 is the principle schematic of the integration imaging double vision 3D working state of monitor I based on liquid crystal cell and polaroid of the present invention
Accompanying drawing 7 is the principle schematic of the integration imaging double vision 3D working state of monitor II based on liquid crystal cell and polaroid of the present invention
Should be appreciated that above-mentioned accompanying drawing just schematically, do not draw in proportion.
Embodiment
Below in conjunction with drawings and Examples, the integration imaging double vision 3D display based on liquid crystal cell and polaroid of the present invention is described in detail.What be necessary to herein means out is; following examples are only described further for the present invention; limiting the scope of the invention can not be interpreted as; this art skilled person makes some nonessential improvement and adjustment according to the invention described above content to the present invention, still belongs to protection scope of the present invention.
Attachedly Figure 3 shows that one embodiment of the present invention, based on the integration imaging double vision 3D display of liquid crystal cell and polaroid, comprising: 2D display screen 5, first polaroid array 71, liquid crystal cell 8, microlens array 2 and the second polaroid array 72.
Preferably, the refreshing frequency of described 2D display screen 5 and described liquid crystal cell 8 is 144 Hz.
Preferably, described first polaroid array 71, described microlens array 2 and described second polaroid array 72, all comprise 383 × 215 unit, each unit is square and is of a size of 1.27mm × 1.27mm.
Preferably, the focal length of described microlens array 2
f=3mm.
Preferably, described liquid crystal cell 8 box is thick is 2mm.
Wherein, described 2D display screen 5, described first polaroid array 71 and described liquid crystal cell 8 three are close to, and the spacing of described 2D display screen 5 and described microlens array 2 is 3mm, is namely positioned on the back focal plane of described microlens array 2.Described microlens array 2 and described second polaroid array 72 are close to.
Figure 4 shows that the Structural assignments schematic diagram of described first polaroid array 71, the polarization direction of polaroid unit 711 is longitudinally, and the polarization direction of polaroid unit 712 is laterally, and the polarization direction of polaroid unit 711 and polaroid unit 712 is orthogonal.
Figure 5 shows that the Structural assignments schematic diagram of described second polaroid array 72, the polarization direction of polaroid unit 721 is longitudinally, and the polarization direction of polaroid unit 722 is laterally, and the polarization direction of polaroid unit 721 and polaroid unit 722 is orthogonal.
Integration imaging double vision 3D display based on liquid crystal cell and polaroid of the present invention, comprises two operating state: operating state I and operating state II.
Operating state I: the micro-pattern matrix described 2D display screen 5 showing 3D program I, apply driving voltage to described liquid crystal cell 8 simultaneously, liquid crystal molecule is along electric field ordered arrangement, the light that described 2D display screen 5 sends polaroid unit in described first polaroid array 71 is linear rises partially, through described liquid crystal cell 8, after lens cells refraction, from described second polaroid array 72, positive corresponding polaroid unit penetrates direct projection light 91 with it, form primary vision area image, and be obstructed from the oblique ray 92 of the adjacent polarizer unit outgoing of described second polaroid array 72, secondary vision area picture drop-out, as shown in Figure 6,
Operating state I: the micro-pattern matrix described 2D display screen 5 showing 3D program II, and close the driving voltage of described liquid crystal cell 8, twisted liquid crystal molecules is to row arrangement, the light that described 2D display screen 5 sends polaroid unit in described first polaroid array 71 is linear rises partially, there are 90 ° of rotations by polarization direction during described liquid crystal cell 8, after lens cells refraction, polaroid unit injection oblique ray 92 adjacent from described second polaroid array 72, form time vision area image, due to direct projection light 91 to tell in the second polaroid array 72 place of positive corresponding polaroid unit with it and be obstructed, primary vision area picture drop-out, as shown in Figure 7.
Sequentially repeat above-mentioned two step operations, and make frequency reach 144Hz, the integration imaging double vision 3D realizing the present invention's proposition shows.
Claims (4)
1., based on an integration imaging double vision 3D display for liquid crystal cell and polaroid, it is characterized in that, comprising: 2D display screen, the first polaroid array, liquid crystal cell, microlens array and the second polaroid array;
Described 2D display screen, described first polaroid array and described liquid crystal cell three are close to, and described 2D display screen is placed on the back focal plane of described microlens array;
Described microlens array and described second polaroid array are close to;
Described 2D shows each array element exact matching of micro-pattern matrix of screen display, described first polaroid array, described microlens array and described second polaroid array and center alignment;
By refreshing the yawing moment of liquid crystal molecule in described liquid crystal cell and the display image of 2D display screen described in synchronous refresh, realize primary vision area and time vision area alternately plays different 3D programs.
2. integration imaging double vision 3D display according to claim 1, is characterized in that, comprise operating state I and operating state II;
Operating state I, described liquid crystal cell applies driving voltage, the light that described 2D display screen sends polaroid unit in described first polaroid array is linear rises partially, through liquid crystal cell, yawing moment does not change, after lens cells refraction, positive corresponding polaroid unit outgoing with it from described second polaroid array, form primary vision area image, and the light of adjacent polarizer unit outgoing is obstructed from described second polaroid array, secondary vision area picture drop-out, now described 2D display screen displaying contents is 3D program I;
Operating state II, described liquid crystal cell does not apply driving voltage, the light that described 2D display screen sends polaroid unit in described first polaroid array is linear rises partially, there are 90 ° of rotations by polarization direction during described liquid crystal cell, after lens cells refraction, adjacent polarizer unit outgoing from described second polaroid array, form time vision area image, due to direct projection direction light to tell in the second polaroid array place of positive corresponding polaroid unit with it and be obstructed, primary vision area picture drop-out, now described 2D display screen displaying contents is 3D program II.
3. liquid crystal cell according to claim 1, is characterized in that, the thickness of described liquid crystal cell is less than the focal length of described microlens array lens cells.
4. the first polaroid array according to claim 1, it is characterized in that, polaroid unit in described first polaroid array and described second polaroid array has identical Structural assignments, and all adopt parallel arranged on horizontal and vertical direction, the polarization direction of adjacent two polaroid units is orthogonal.
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| CN108761824A (en) * | 2018-08-13 | 2018-11-06 | 成都工业学院 | Without crosstalk and high-resolution double vision 3D display device and method |
| CN108919506A (en) * | 2018-08-13 | 2018-11-30 | 成都工业学院 | A kind of double vision 3D display device and method |
| CN110389454A (en) * | 2019-07-28 | 2019-10-29 | 成都工业学院 | Integration imaging double vision 3D display device based on rectangle polarization arrays |
| CN113219561A (en) * | 2021-04-13 | 2021-08-06 | 福州大学 | Large-field-depth composite micro lens and manufacturing method thereof |
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| CN113219561A (en) * | 2021-04-13 | 2021-08-06 | 福州大学 | Large-field-depth composite micro lens and manufacturing method thereof |
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