CN102243387B - High-resolution stereoscopic display system - Google Patents
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Abstract
The invention relates to a high-resolution novel stereoscopic display system. The high-resolution novel stereoscopic display system, from bottom to top, comprises a backlight source module, a gray control module, a pixel control module, an electrically-controlled holographic image-dividing grating module and an electrically-controlled cylindrical lens module, wherein the electrically-controlled holographic image-dividing grating module consists of a first image-dividing grating, a second image-dividing grating and a time sequence control circuit; the time sequence control circuit controls the outgoing direction of a light through a display panel; and the electrically-controlled cylindrical lens module adopts an electrically-controlled polymer dispersed liquid crystal variable focal lens. The high-resolution novel stereoscopic display system has the advantages that: an operating mode of the system can be quickly switched between a two-dimensional (2D) display mode and a three-dimensional (3D) display mode; the 3D mode and the 2D mode of a display have the same high brightness and the same high resolution; the display has high-screen refresh rate; and picture blinking is avoided under the 3D mode.
Description
Technical field
The present invention relates to a kind of three-dimensional monitor, particularly a kind ofly realize high-resolution three-dimensional display.
Background technology
The beholder is when using shutter glasses to watch stereo-picture, need to wear a secondary shutter glasses, the image switching Frequency Synchronization of its left and right two eyeglasses and indicator screen, when display at a time shows left-eye image, left eyeglass lens leads to light, the right eye eyeglass is closed, and at this moment, has formed the vision of left eye in human brain; (be generally 1/120 second) in a short period of time, right and left eyes eyeglass switch state alternative, now, display changes the demonstration eye image into, forms right vision in human brain.By the persistence of vision principle, in human brain subconsciousness, to think, the right and left eyes vision receives simultaneously, and like this, in human brain, just nature synthesizes three-dimensional stereoscopic visual by two width with the two dimensional image of parallax.
The shutter stereo display technique exists two large problems, and first, this technology belongs to body formula display technique, needs wearing spectacles just can view and admire, affect audience's impression naturally, and limited the number of watching.The second, at present common liquid crystal display also has no idea to reach the refreshing frequency of 120HZ.
Refresh rate is a parameter that characterizes pixel switch speed, its fast, the slow display capabilities of display to dynamic image that directly affect.Because liquid crystal is a kind of material with certain viscosity, have certain resistance in twist process, so there is the slow shortcoming of refresh rate in conventional liquid crystal, in other words, when watching the 3D image, the beholder it will be appreciated that flicker and picture discontinuous situation.
Self body display technique compared to current main flow, described in CN101017248A patent selected works as disclosed as on August 15th, 2007, as slit grating stereo display and microtrabeculae face lens type three-dimensional display, it is high that shutter stereo display also has it self advantage-resolution.From image-forming principle, analyze, when above-mentioned two kinds of Self bodies are presented at the 2D demonstration, the pixel on the equal corresponding display panel of the pixel on each picture, resolution is 1:1 with the pixel ratio; And, under the 3D pattern, adjacent two pixels are split as left eye pixel and right eye pixel, and the stereoscopic vision in human brain, each pixel need to be provided by two pixels on display panel, and resolution is 1:2 with the ratio of pixel.In other words, when above-mentioned amphitypy three-dimensional display switches to the 3D pattern by the 2D pattern, its resolution will drop to original below 50% immediately.
Summary of the invention
The present invention be directed to the three-dimensional display problem that resolution can descend while by the 2D pattern, switching to the 3D pattern, proposed a kind of high-resolution Novel three-dimensional display system, can conversion fast between 2D-3D; Simultaneously, the display resolution under the 3D pattern is identical with the 2D pattern.And can carry out dynamically following the tracks of and adjusting according to orientation, user place, compatible existing liquid crystal panel manufacturing technology, guarantee to have identical high resolving power after switching.
Technical scheme of the present invention is: a kind of high-resolution Novel three-dimensional display system, comprise that from the bottom to top backlight module, gray-scale Control module, pixel control module, electric control holographic divide picture grating module and automatically controlled cylindrical lens module to form, described electric control holographic divides as grating module by first minute as grating, within second minute, forms as grating and sequential control circuit, described minute as grating when not powering up, the light by display panel is respectively to left and right the both direction diffraction; When first minute as grating close, second minute while opening as grating, light through first minute picture backward left side of grating with the outgoing of Bragg diffraction angle; Through unit interval, first and second minute picture grating switch state alternative, when first minute as grating open, when within second minute, the picture grating closes, light is with Bragg diffraction angle outgoing to the right after second minute picture grating, and automatically controlled cylindrical lens module adopts automatically controlled Polymer Dispersed Liquid Crystal Zoom lens.
Described gray-scale Control module is comprised of nesa coating, Polymer Dispersed Liquid Crystal box and glass substrate, wherein, transparency conducting layer is comprised of ITO conducting film, pixel electrode and driving transistors, control electrode makes liquid crystal molecule rotate corresponding angle by the liquid crystal applied voltages to sub-pixel, realizes the high speed gray-scale Control of refresh rate 480HZ.
Described pixel control module is by nesa coating, chromatic filter and glass substrate form, in chromatic filter, each RGB tri-color element be take shape and is arranged in order as unit as the structure of isosceles triangle, three square RGB sub-pixels of a complete pixel cell and shape, area micro-control circuit identical with single sub-pixel form, amount to four square microstructure units alignment and arrange and form a complete dot structure, a kind of corresponding in the RGB three primary colours of each sub-pixel unit.
Described Polymer Dispersed Liquid Crystal is a kind of heterogeneous body, heterogeneous material, polymkeric substance is main body, liquid crystal is disperse phase, this liquid crystal is the uniform mix of polymkeric substance and liquid crystal when initial, initiated polymerization under critical temperature or exposure intensity, now mutual solubility is broken, liquid crystal thereby be precipitated, with little droplet, be dispersed in polymer network, the liquid crystal molecule random alignment, can produce strong light scattering, by the extra electric field highfield, molecule will be arranged along direction of an electric field fully, if liquid crystal optical index and polymeric matrix refractive index are complementary, Polymer Dispersed Liquid Crystal will become optical transparent body fully, diffraction efficiency is zero.
Beneficial effect of the present invention is: the high-resolution Novel three-dimensional display system of the present invention, and the system works pattern can be shown in switching fast between 3-D display in two dimension; Show that bright 3D pattern has identical high brightness with the 2D pattern; Display 3D pattern has identical high resolving power with the 2D pattern; Display has high screen refresh rate, under the 3D pattern without film flicker.
The accompanying drawing explanation
Fig. 1 is the high-resolution Novel three-dimensional display system structural representation of the present invention;
Fig. 2 is the high-resolution Novel three-dimensional display system display panel of the present invention microcosmic dot structure figure;
Fig. 3 is that the high-resolution Novel three-dimensional display system electric control holographic of the present invention divides picture optical grating diffraction light path schematic diagram;
Fig. 4 is that electric control holographic of the present invention divides while as grating, dividing to the left picture constantly, and within first minute, the picture grating closes, and within second minute, as grating, opens schematic diagram;
Fig. 5 is that electric control holographic of the present invention divides while as grating, dividing to the right picture constantly, within first minute, as grating, opens, and within second minute, the picture grating closes schematic diagram;
The sequential chart that Fig. 6 is the high-resolution Novel three-dimensional display system sequential circuit of the present invention;
Fig. 7 is mode control logic figure of the present invention;
Fig. 8 is the high-resolution Novel three-dimensional display system cylindrical lens of the present invention shape Electric Field Distribution schematic diagram;
Fig. 9 is the automatically controlled Polymer Dispersed Liquid Crystal holographic grating making optical path of the high-resolution Novel three-dimensional display system of the present invention figure;
Figure 10 is the prefabricated detachable cylindrical lens module installation diagram of the present invention.
Embodiment
The invention provides a kind of high-resolution Novel three-dimensional display system, intend adopting superposing type to divide the picture grating as crucial control assembly.Its structure comprises the display panel of collimation backlight, high speed gray-scale Control Liquid Crystal Module, isosceles triangle dot structure, holographic minute picture grating and automatically controlled cylindrical lens.Mode of operation can switching fast between 2D and 3D.Under the 3D pattern, under the support of high speed gray-scale Control module, within holographic minute, look like grating the emergent light of same pixel is distinguished to diffraction to different directions with the speed higher than 120HZ, focus on respectively two of left and right by automatically controlled cylindrical lens again, human eye is watched and there is the image of parallax, and form stereoscopic vision in human brain.
Polymer Dispersed Liquid Crystal (Polymer Dispersed Liquid Crystal-PDLC) film is a kind of heterogeneous body, heterogeneous (two-phase) material, and polymkeric substance is main body, liquid crystal is disperse phase.This system is the uniform mix of polymkeric substance and liquid crystal when initial, initiated polymerization under certain critical temperature or exposure intensity, now mutual solubility is broken, and potpourri can not exist with single-phase again, liquid crystal thereby be precipitated, be dispersed in polymer network with little droplet.Usually, the size of liquid crystal droplet is in micron dimension, and liquid crystal molecule random alignment wherein, can produce strong light scattering like this.By extra electric field, in droplet, liquid crystal molecule is by reorientation, and enough strong electric field can make molecule arrange along direction of an electric field fully.If liquid crystal ordinary refraction index and polymeric matrix refractive index are complementary, film will become optical transparent body fully.Switching characteristic from opaque to transparent has formed the basis that PDLC applies in the demonstration field.
The USAF laboratory has proposed the holographic polymer dispersed liquid crystal grating first in 1993, this has developed the automatically controlled Bragg grating Electrically Switchable Bragg Gratings-ESBG technology based on high-diffraction efficiency H-PDLC grating by holographic technique Holographic Technique and the new technique that polymer dispersion liquid crystal material H-PDLC combines.
In general, the size of H-PDLC material is much smaller compared to traditional PD LC material, only has about 10-100nm.Nano level liquid crystal droplet does not have scattering or absorption to the light of visible light wave range and infrared band.The peculiar property of H-PDLC is based on its special effective refractive index difference, and this difference refers in the difference between the effective refractive index of the effective refractive index of polymer aggregational district striped and liquid crystal accumulation area and can change under the effect at extra electric field.This means that its diffraction efficiency can be adjustable by the switch of outside DC electric field.This character has greatly been expanded the application of H-PDLC material.When in powering state not, ESBG is in state of activation, and now the holographic box in Prague is in maximum diffraction efficiency.In order to make the holographic box in Prague in optically transparent unactivated state, be equivalent to diffraction efficiency and drop to 0, must apply an extra electric field.This electric field is produced by the transparent ITO conducting film in liquid crystal cell inwall both sides.The voltage applied is necessary for alternating voltage, to keep the balance of the DC voltage in box, typically applies frequency between 100HZ to 2000HZ.In its range of linearity, the diffraction efficiency of liquid crystal cell is along with the voltage change that is directly proportional, if will make diffraction efficiency drop to 0, need to be in enough voltage driving situations, the ordinary refractive index of liquid crystal droplet with around the effective refractive index of polymer substrate mate fully.
As described above, why conventional liquid crystal can't adapt to the requirement that 3D shows, mainly because its screen refresh rate is not high enough, cause, and refresh rate is determined by the direct electrical-optical characteristic by liquid crystal.The electrical-optical characteristic of liquid crystal refers to, when applying certain voltage (2 ~ 3V) to liquid crystal, liquid crystal molecule rearranges under electric field action, with the formed light transmission rate of the distortion angle of liquid crystal molecule, with extra electric field, changes.The principle of luminosity of liquid crystal display is under the effect of backlight, utilizes the difference of liquid crystal molecule whereabouts under electric field action to realize that the gray scale of image shows.Have the relaxation response during due to liquid crystal molecular orientation, so fluorescent lifetime always lags behind the time that applies driving voltage.After the regulation driving voltage adds, brightness changes to 90% for the rise time by 10%, and after cutting off voltage, brightness changes to 10% for fall time by 90%.
The computing formula of response time is as follows:
rise time (6.1)
Wherein
the coefficient of viscosity that means liquid crystal,
the radius of liquid crystal droplet,
the aspect ratio of liquid crystal droplet,
the elasticity coefficient of liquid crystal,
be the specific inductive capacity of random alignment liquid crystal droplet, its calculating can adopt the method for calculating the liquid crystal effective refractive index to go to calculate,
the specific inductive capacity of polymkeric substance,
the voltage be added on the Polymer Dispersed Liquid Crystal holographic lens,
represent the thickness of holographic lens.
The described high speed gray-scale Control liquid crystal layer of present design adopts the holographic polymer dispersed liquid crystal manufacture, little than in general polymer dispersed LCD of liquid crystal droplet particle diameter in the holographic polymer dispersed liquid crystal material, formula rate by changing prepolymer and the polymerization phase separation liquid crystal droplet particle diameter of separating out that can make to expose after polymerization is separated diminishes, thereby make the velocity of rotation of liquid crystal optic axis under powering state more a lot of soon than pure liquid crystal, research shows, the reaction velocity of nanometer polymer dispersed LCD is easy to realize being less than 1ms.Adopt like this this material just can significantly improve the speed that liquid crystal greyscale is controlled.
Light wave is when propagating, and according to Huygens' principle, each point on wave front can be considered to an independent inferior wave source; These time wave source sends the sphere subwave again, and the wave front in the later a certain moment, be exactly the track plane of these sphere subwaves of this moment.Desirable diffraction grating can think and be comprised of one group of equally spaced endless, unlimited narrow slit, and the spacing between slit is d, is called grating constant.When the wavelength plane wave that is λ is normally incident in grating, the point on every slit has all been played the part of the role of inferior wave source; The light sent from these wave source can be propagated to all direction in spaces in the spherical wave mode.Because slit is endless, can only consider the situation on the plane vertical with slit, slit is reduced to the row's point of one on this plane.On this plane along the light field of a certain specific direction, be to be formed by the light coherence stack from every slit outgoing.When interfering, can be because the phase place at interference point of the light from every slit outgoing is all different and partly or entirely offset between them.Yet, when the optical path difference of the arrival of the light from adjacent two slit outgoing interference point is the multiple of light wavelength, the two-beam phase of line is identical, will interfere the reinforcement phenomenon.Describe with formula, work as diffraction angle
mmeet relation
the time interfere the reinforcement phenomenon, d is slit separation here, i.e. grating constant, m is an integer, value is 0, ± 1, ± 2 ...This interference hard point is called diffraction maximum.Therefore, diffraction light will be θ in angle of diffraction
min time, obtained greatly.
When plane wave, during with incidence angle θ i incident, grating equation is written as
(m=1,2,3,4.....) the PDLC material is exposed to initiated polymerization under certain critical temperature or exposure intensity, and liquid crystal forms discrete periodic channel in print, by intensive polymer passage, is separated, and obtains body grating, i.e. the Bragg grating.Body grating has following character, and when light, during with incident angle i incident grating, grating dispersion can be used equation
in Miao Shu ﹐ formula, to get Zheng Zhi ﹐ be angle of diffraction to φ.Otherwise when diffraction light and incident light grating normal the same side i be positive ﹐ for negative ﹔ C be that often to count ﹐ be an integer to the light grid.Dinging Shi ﹐ as incident angle i Gei has the luminous energy of each wavelength of corresponding level Guang Pu ﹐ to be dispersed in all spectral order for each the m Zhi ﹐ that meets grating equation.The Ji Shu ﹐ that modern times are scribed grating can make all diffraction grating have the shape and size of strict regulations.Select suitable Ru She Jiao ﹐ can make the luminous energy of the overwhelming majority (reaching 90%) of required wavelength and contiguous wave band thereof focus in predetermined spectral order.
Utilize the different angle of diffraction of volume holographic grating, in theory, we can make such image divider part, and this image divider part is comprised of two groups of different grating fringes of bearing of trend, can make the incident light of vertical direction go out with symmetrical angle of diffraction transmission to two different directions respectively.Here it is minute dividing as principle as grating, when we are identical with pixel self width by the grating fringe reduced width of these two groups of different directions is arrived, just can be controlled the display direction of all pixels on display panel, thereby make left and right two of beholder can see on same panel with two width of parallax picture independently, in synthesizing of process human brain, finally form stereoscopic vision.
The three-dimensional display structural representation, comprise that collimation backlight module 1, high speed gray-scale Control module, pixel control module, electric control holographic divide picture and cylindrical lens module as shown in Figure 1.
Display comprises that backlight module 1, glass substrate 10, ITO nesa coating, gray-scale Control Polymer Dispersed Liquid Crystal 2, ITO nesa coating 9, glass substrate, colored filter 3, first minute picture grating 4, second minute picture grating 8 and automatically controlled cylindrical lens module form from the bottom to top.
Optional automatically controlled cylindrical lens module comprises that glass substrate, ITO nesa coating, Polymer Dispersed Liquid Crystal 7, linear transparency electrode 5 and glass substrate 6 form from the bottom to top.
The pixel control module is by nesa coating, and chromatic filter 3 and glass substrate form.As shown in Figure 2, RGB tri-color elements be take shape and are arranged in order as unit as the structure of isosceles triangle, three square RGB sub-pixels of a complete pixel cell and shape, area micro-control circuit identical with single sub-pixel form, and amount to four square microstructure unit alignment and arrange a complete dot structure of formation.A kind of corresponding in the RGB three primary colours of each sub-pixel unit.
The gray-scale Control module is comprised of with glass substrate nesa coating, Polymer Dispersed Liquid Crystal box 2.Wherein, transparency conducting layer is comprised of ITO conducting film, pixel electrode and driving transistors.Control electrode makes liquid crystal molecule rotate corresponding angle by the liquid crystal applied voltages to sub-pixel, realizes the high speed gray-scale Control of refresh rate 480HZ.
Backlight module collimation backlight has an exit facet, and through this face, emitted light has the be less than ± angle of divergence of 5 °, therefore its beam projecting direction is basic and exit facet is perpendicular.
As shown in Figure 2, the pixel control module is by nesa coating, and chromatic filter and glass substrate form.Another kind of structure RGB tri-color elements be take shape and are arranged in order as unit as the structure of isosceles triangle, three square RGB sub-pixels of a complete pixel cell and shape, area micro-control circuit identical with single sub-pixel form, and amount to four square microstructure unit alignment and arrange a complete dot structure of formation.A kind of corresponding in the RGB three primary colours of each sub-pixel unit.
The gray-scale Control module is comprised of with glass substrate nesa coating, Polymer Dispersed Liquid Crystal box 2.Wherein, transparency conducting layer is comprised of ITO conducting film, pixel electrode and driving transistors.Another kind of mode control electrode makes liquid crystal molecule rotate corresponding angle by the liquid crystal applied voltages to sub-pixel, realizes the control of gray scale.Because the response speed of polymer dispersion liquid crystal material is very fast, can be less than 1ms.So liquid crystal cell unit proposed by the invention is realized the gray-scale Control function and can be surpassed 60Hz or the 120Hz in existing lcd technology.For example can reach 480HZ.
As Fig. 1 electric control holographic divides as grating module by first minute as grating, within second minute, forms as grating and sequential control circuit.
As Fig. 4,5 first minutes picture gratings and the bearing of trend symmetry that looks like grating in second minute, the light that described grating can send display panel under powering state not is respectively to left and right the both direction diffraction.Wherein, carve at a time, within first minute, the picture grating closes, within second minute, as grating, open, image through the backward left side of grating with unified Bragg diffraction angle outgoing; Through unit interval, first and second minute picture grating switch state alternative, image after grating with Bragg diffraction angle outgoing to the right.
The bias light of the collimation of being sent by the display backlight source, through high speed gray-scale Control module modulation gray scale, dispose after the colored filter modulates color and incide first minute as on grating.In order to make images of left and right eyes can obtain respectively independently image, utilize human eye 65mm spacing in the horizontal direction, alternately opened and closed as the automatically controlled of grating by two slices minutes, within two periods adjacent unit interval, divide and be able to the exit direction of image is periodically separated as module.
As shown in Figure 6, another kind of mode display panel is with the frequency of 480HZ, show respectively left-eye image and eye image, sequential control circuit is synchronously by carrying out staggered switch control as grating in two slices minute to two striped bearing of trend symmetries, be able to the image of vertical incidence with certain angle of diffraction outgoing, and enter respectively beholder's images of left and right eyes.Although eyes have of short duration interval in time at the image received, yet the reason due to persistence of vision, people's optic nerve can not be distinguished the precedence relationship of the two, giving tacit consent to the two is the light sent by same object received on synchronization, and then forms the stereo-picture to this object in human brain.By the control of sequential circuit, display has 3 kinds of display directions as shown in Figure 7, and a left side is looked, looked at straight and the right side is looked.
Another mode lambda1-wavelength is got λ=550nm(white light mean wavelength), the grating spacing value
, when making, angle is
(Bragg diffraction angle), m=1(diffraction intensity maximum value striped).Minute as the effect of grating, be under the 3D pattern, change the light path of display panel different pixels light, i.e. the equal diffraction left of the corresponding light of all left-eye image, and form directional light; The corresponding light of all eye image is diffraction to the right all, also forms directional light.Divide the picture effect by grating, left-eye image is separated with eye image.Moreover, because the corresponding angle of diffraction of all left-eye image is identical, therefore, the light of all diffraction direction homonymies is all parallel to each other, and this just provides possibility for the cylindrical lens by hereinafter described focuses on respectively two of left and right.
The employing modular design of another kind of structure cylinder lens module, for large-scale display terminal, adopt automatically controlled Polymer Dispersed Liquid Crystal Zoom lens, as shown in Figure 8, in the time of under the 3D pattern, polymer dispersed liquid crystal layer is opened lens effect, and in the time of under the 2D pattern, two sections loadings of liquid crystal layer are higher than the voltage of threshold value, lens effect is wiped, liquid crystal layer recovers lens, and light is not converged to effect, is equivalent to parallel plate on optical property; For Miniature Terminal, the present invention has designed prefabricated, the cylindrical lens module that can be easy for installation and removal.This module adopts optical glass or resin material manufacture, in the time of under the 2D pattern, do not need to install, in the time of under the 3D pattern, the user takes out the cylindrical lens module in protective sleeve, lens bottom side alignment display panel top draw-in groove track or Spring sheet clip are inserted, when lens are in place, stationary installation meeting automatic blocking, keep best Installation posture; If remove this module, only need the flicking insurance, the stationary installation automatic unlocking, pull out lens gently and can complete dismounting along guide rail.By through the focussing force of cylindrical lens, guaranteeing that binocular interval is from when be 65mm, it is planimetric position, eyes place that information is focused on to the position of observing about 300mm from display panel.
The switching of the display mode of another kind of mode display is by first and second minutes, as grating, load the voltage higher than threshold value simultaneously, make grating fringe disappear, directly along former incident direction, pass and reach human eye as grating in two slices minutes after backlight transmission display panel, the picture on display panel that now right and left eyes is seen is the unified parallax that do not have, and what see is the ordinary two dimensional plane picture.
Claims (4)
1. a high-resolution stereoscopic display system, comprise that from the bottom to top backlight module, gray-scale Control module, pixel control module, electric control holographic divide picture grating module and automatically controlled cylindrical lens module to form, it is characterized in that, described electric control holographic divides as grating module by sequential control circuit and stacked first minute as grating, within second minute, forms as grating, described first minute as grating when not powering up, open state, make light by display panel diffraction to the right; And second minute as grating when not powering up, open state, make light by display panel diffraction left; When first minute as grating close, second minute while opening as grating, light through second minute picture backward left side of grating with the outgoing of Bragg diffraction angle; Through unit interval, first and second minute picture grating switch state alternative, when first minute as grating open, when within second minute, the picture grating closes, light is with Bragg diffraction angle outgoing to the right after first minute picture grating, and automatically controlled cylindrical lens module adopts automatically controlled Polymer Dispersed Liquid Crystal Zoom lens.
2. high resolving power stereoscopic display system according to claim 1, it is characterized in that, described gray-scale Control module from bottom to top comprises glass substrate, ITO nesa coating, Polymer Dispersed Liquid Crystal box, ITO nesa coating, glass substrate, transparency conducting layer is by wherein an ITO nesa coating, pixel electrode and driving transistors form, control electrode makes liquid crystal molecule rotate corresponding angle by the liquid crystal applied voltages to sub-pixel, realizes the high speed gray-scale Control of refreshing frequency 480Hz.
3. high resolving power stereoscopic display system according to claim 1, it is characterized in that, described pixel control module is by nesa coating, chromatic filter and glass substrate form, in chromatic filter, each RGB tri-color element be take shape and is arranged in order as unit as the structure of isosceles triangle, a complete pixel cell is by three square RGB sub-pixels and shape, the micro-control circuit that area is identical with single sub-pixel forms, amount to four square microstructure unit alignment and arrange a complete dot structure of formation, a kind of corresponding in the RGB three primary colours of each sub-pixel unit.
4. high resolving power stereoscopic display system according to claim 1, it is characterized in that, described Polymer Dispersed Liquid Crystal is a kind of heterogeneous body, heterogeneous material, polymkeric substance is main body, liquid crystal is disperse phase, this liquid crystal is the uniform mix of polymkeric substance and liquid crystal when initial, initiated polymerization under critical temperature or exposure intensity, now mutual solubility is broken, liquid crystal thereby be precipitated, with little droplet, be dispersed in polymer network, the liquid crystal molecule random alignment, can produce strong light scattering, by the extra electric field highfield, molecule will be arranged along direction of an electric field fully, if liquid crystal optical index and polymeric matrix refractive index are complementary, Polymer Dispersed Liquid Crystal will become optical transparent body fully, diffraction efficiency is zero.
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| CN102736255A (en) * | 2012-06-05 | 2012-10-17 | 深圳市亿思达显示科技有限公司 | Stereo display device and optical grating system applied to same |
| CN103533336B (en) * | 2012-07-06 | 2017-06-09 | 北京康得新三维科技有限责任公司 | High-resolution auto-stereoscopic display |
| CN102841447A (en) * | 2012-08-20 | 2012-12-26 | 冠捷显示科技（厦门）有限公司 | Full distinguishability naked eye stereoscopic displayer |
| CN104102036A (en) * | 2013-04-09 | 2014-10-15 | 迟常荣 | Real-time dynamic colored holographic three-dimensional display liquid crystal thin-film and preparation method thereof |
| CN103293688B (en) * | 2013-05-10 | 2015-11-25 | 昆山龙腾光电有限公司 | The display that two-dimensional/three-dimensional switches and display packing thereof |
| CN104345465A (en) * | 2014-11-06 | 2015-02-11 | 句容福芯电子有限公司 | Display screen capable of realizing two-dimensional and three-dimensional display mode conversion |
| IL244180B (en) * | 2016-02-18 | 2022-02-01 | Oorym Optics Ltd | Dynamic full three dimensional display |
| CN105607172B (en) * | 2016-03-31 | 2020-03-27 | 京东方科技集团股份有限公司 | Grating assembly, light source device and driving method thereof |
| CN107976843B (en) * | 2018-01-25 | 2021-11-02 | 京东方科技集团股份有限公司 | Phase difference layer, display panel and display device |
| CN112305777B (en) * | 2020-11-09 | 2022-01-11 | 北京理工大学 | Two-dimensional and three-dimensional switchable display method and system |
| CN113268302B (en) * | 2021-05-27 | 2023-08-11 | 杭州灵伴科技有限公司 | Display mode switching method and device of head-mounted display equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929757Y (en) * | 2006-04-20 | 2007-08-01 | 北京超多维科技有限公司 | Automatic imaging stereo display device |
| CN201017106Y (en) * | 2007-02-09 | 2008-02-06 | 陆静麟 | Stereo image display screen capable of assembling-disassembling grating layer |
| JP2011008005A (en) * | 2009-06-25 | 2011-01-13 | Citizen Electronics Co Ltd | Light diffusion plate and backlight device using the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101281906B1 (en) * | 2005-12-29 | 2013-07-03 | 엘지디스플레이 주식회사 | 2-dimension image and 3-dimension image display device and manufacturing for display device thereof |
| CN101017248A (en) * | 2007-03-07 | 2007-08-15 | 南京大学 | Reclaimed back lighting auto-stereoscopic imaging device and method therefor |
-
2011
- 2011-07-04 CN CN 201110185091 patent/CN102243387B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2929757Y (en) * | 2006-04-20 | 2007-08-01 | 北京超多维科技有限公司 | Automatic imaging stereo display device |
| CN201017106Y (en) * | 2007-02-09 | 2008-02-06 | 陆静麟 | Stereo image display screen capable of assembling-disassembling grating layer |
| JP2011008005A (en) * | 2009-06-25 | 2011-01-13 | Citizen Electronics Co Ltd | Light diffusion plate and backlight device using the same |
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