CN101840071A - Three-dimensional monitor based on liquid crystal lens - Google Patents
Three-dimensional monitor based on liquid crystal lens Download PDFInfo
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- CN101840071A CN101840071A CN201010171230A CN201010171230A CN101840071A CN 101840071 A CN101840071 A CN 101840071A CN 201010171230 A CN201010171230 A CN 201010171230A CN 201010171230 A CN201010171230 A CN 201010171230A CN 101840071 A CN101840071 A CN 101840071A
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Abstract
The invention relates to a three-dimensional monitor based on the liquid crystal lens in the technical field of liquid crystal three-dimensional display. The monitor comprises a flat-panel monitor and a liquid crystal lens panel arranged between the viewer and the flat-panel monitor, wherein the liquid crystal lens panel comprises an outer substrate on one side near the viewer, an inner substrate on one side near the flat-panel monitor and a liquid crystal layer arranged between the outer substrate and the inner substrate; and the image displayed by the flat-panel monitor is an image coded and synthesized by two or more of anaglyphs according to the demand of three-dimensional display. The invention utilizes electric signal control, thus the conversion between 2D and 3D can be conveniently realized; and by adjusting the intensity distribution of electric signal, the optical performance of the liquid crystal lens can be optimized and the performance of three-dimensional display can be improved according to design demands.
Description
Technical field
What the present invention relates to is the device in a kind of liquid crystal dimension display technologies field, specifically is a kind of three-dimensional monitor based on liquid crystal lens.
Background technology
Along with the raising and the progress of science and technology of people's living standard, as of paramount importance a kind of means in the information propagation, display technique has also obtained the development of making rapid progress.In recent years, people have been not content with traditional plane display technique, begin to pursue the demonstration means of various novelties, and 3 D stereo shows with its unique stereoscopic vision to stimulate, and has been subjected to increasing favor.
Three-dimensional stereo display technique, its main target are to make the people when watching the image of display, produce just like watching the same stereo perception of actual object.The method that three-dimensional stereo display technique mainly adopts is to make observer's right and left eyes observe two width of cloth images of certain parallax respectively, thereby synthesizes the image that three-dimensional sense organ is arranged in brain.The early stage technology of using comprises technology such as color filter technology, polarising glass technology, glasses switch, occurred technology such as barrier formula and the demonstration of lens type 3 D stereo in recent years again, relatively the still immature technology in forward position also has body three peacekeeping holographic 3 D display techniques etc.
Find through retrieval prior art, China's application number is 200710048382.5 patent of invention " based on the three-dimensional auto-stereoscopic display device of light polarizing parallax strip and grid screen ", it utilizes the polarization grating device, the light that makes different pixel regions is with mutually orthogonal polarization outgoing, by suitable picture coding, the observer just can make anaglyph to entering right and left eyes respectively after wearing polarising glass, thereby forms three-dimensional stereoscopic visual.
And for example: Chinese application number is 200910047720.2 patent of invention " three-dimensional stereo display device ", it utilizes the deviation effect of cylindrical lens array to light, the light that different subpixel is sent spatially produces separation, when eye-observation, right and left eyes just can be observed different sub-pixels, by suitable picture coding, it is right just to make eye-observation arrive anaglyph, thereby produces stereoscopic vision.
By analyzing existing three-dimensional stereo display technique, can find: for polarization grating formula stereoscopic three-dimensional display technique, need the observer to wear the polarization eyes, it can influence the comfort level of watching, and when observer's number increases, the also necessary corresponding increase of the number of glasses; For traditional barrier formula technology, because barrier is to the blocking of screen, it can significantly reduce screen intensity; Lens type 3 D stereo technology, it makes anaglyph to spatially separating, do not need observer's wearing spectacles just can make the observer produce stereoscopic vision, can improve and watch comfort level, can obviously not reduce picture brightness, and be fit to many people and watch simultaneously, but it is difficult to realize to the conversion of 3D at 2D.
Liquid crystal technology has obtained very fast development in the demonstration field in recent years.Liquid crystal is a kind of material with birefringence effect, its physical form is between liquid and solid, the flowability of existing liquid, the characteristic that has solid interior component units periodic arrangement again, and, the space of liquid crystal molecule changes towards the direction of meeting along with electric field, or perpendicular to electric field, or be parallel to electric field.By suitable electric field controls, just can form different index distribution, thereby produce the optical effect of various needs at the diverse location of liquid crystal material.In view of all advantages of liquid crystal material, liquid crystal material also progressively is applied in the three-dimensional stereo display technique, to realize the 2D/3D conversion.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of three-dimensional monitor based on liquid crystal lens is provided, control the different angle of deflection of the liquid crystal molecule of diverse location by electric signal, thereby the light for a certain special polarization state forms certain index distribution, thereby the light refraction effect of imitation cylindrical lens reaches the effect that 3 D stereo shows.
The present invention is achieved by the following technical solutions, the present invention includes: flat-panel screens and the liquid crystal lens panel between spectators and flat-panel screens is characterized in that: described liquid crystal lens panel comprises: the outer substrate of nearly spectators' one side, the interior substrate of hither plane display one side and outside, liquid crystal layer between the interior substrate.
Described flat-panel screens is cathode-ray tube display (CRT), plasma scope (PDP) or LCD (LCD), and its display image is encode image after synthetic of two or more anaglyphs.
Described outer substrate and interior substrate are square plate, size and corresponding flat-panel screens coupling, and thickness is that it is made by transparent material between 0.1 to 2 millimeter, as glass or plastics etc.
The side that described outer substrate is relative with interior substrate is equipped with transparency conducting layer, and this transparency conducting layer is for covering vertical bar shape, slanted bar shape transparent signal electrode layer or the transparent common electrode layer of whole outer substrate or interior substrate.Transparency conducting layer is generally the ITO material and makes, and thickness is that 10 nanometers are to 500 nanometers.
Described transparent signal electrode layer is made up of several parallel strip shaped electric poles, and wherein: every 2-100 strip shaped electric poles is a unit, by add different voltages to each strip shaped electric poles to form refractive index distribution structure.
Be equipped with liquid crystal alignment layer with the contacted side of liquid crystal layer on described outer substrate and the interior substrate, material is certain organic coating, as polyimide (PI), thickness in 10 nanometers to 100 nanometers.
The periphery of described liquid crystal layer is provided with separaant with control thickness, and this liquid crystal layer is that the liquid crystal material with electric controllable birefringence is made;
Described separaant be plate to carry projection or diameter be 1 to 100 micron microballoon, as the silicon grain bead.
Be provided with organic layer between transparency conducting layer in described on the substrate and the both alignment layers, to improve the Electric Field Distribution of liquid crystal layer inside, the thickness of this organic layer is 0.1 to 10 micron.
The substrate side that contacts with flat-panel screens is provided with the linear polarization film in described, and the frictional direction of both alignment layers is consistent in the direction of this linear polarization film and the interior substrate.
With respect to traditional three-dimensional stereo display technique, the present invention can not reduce the brightness of picture, any glasses need not be worn and three-dimensional stereoscopic visual effect can be produced, it can use electric signal control neatly, the conversion of 2D/3D can be easily realized, and performance that 3 D stereo shows etc. can be improved as required.
Description of drawings
Fig. 1 is a principle schematic of the present invention.
Fig. 2 is the structural representation of present embodiment.
Fig. 3 is the signal electrode figure of present embodiment.
Fig. 4 is a present embodiment software modeling model example.
Fig. 5 is the index distribution of present embodiment behind software emulation.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Present embodiment is an example with three visual field three-dimensional monitors, and flat-panel screens is selected 14 cun LCD display for use, and its resolution is 1366x768, and the sub-pixel level width is 75.5 microns, and viewing distance is chosen as 1 meter, and hypothesis observer's interpupillary distance is 65 millimeters.The liquid crystal lens panel adopts 30 microns interval, and uses 10 electrodes to control liquid crystal deflection, and forming required index distribution, and pure electrically conerolled birefringence (ECB) pattern is adopted in the driving of liquid crystal.
As shown in Figure 1, be principle schematic of the present invention, it is an example with three visual field stereo displays.The pixel of common plane display 1 is divided into P1, P2, P3 three classes among the figure, per three pixels be a unit and by periodic arrangement with show nuance three width of cloth anaglyphs.Arc dotted line in the liquid crystal lens panel 2 is the profile of liquid crystal molecule index distribution of the similar lens of formation under electric signal control.Pixel cell for common plane display 1, comprise sub-pixel P1, P2, P3, after the light refraction effect of its light that sends through liquid crystal lens panel 2, project respectively on three different points of view of sightingpiston 3, thereby reached the effect that display different pixels light is spatially separated, thereby can make the observer produce 3D stereoscopic vision.
In Fig. 1, i represents sub pixel width; Z represents viewing distance; E represents the visual field at interval, and f represents the focal length of liquid crystal lens, and d represents the space periodic of liquid crystal lens.Wherein, i, z, the known conditions when e is design, d, f design parameter for obtaining.In the present embodiment, pixel wide i is taken as 75.5 microns, and viewing distance z is taken as 1 meter, and visual field e at interval can be taken as one times of interpupillary distance here, promptly 65 millimeters for one times of interpupillary distance, 1/2nd interpupillary distances, 1/3rd interpupillary distances etc.By geometrical optics light path relation among the figure, can obtain the expression formula of design parameter:
Wherein, n represents the viewpoint number, gets 3 here, and according to aforesaid data, calculating can get: liquid crystal lens f is 1.16 millimeters, and all period interval d are 226.24 microns.Be carried in the electrical signal intensity of liquid crystal layer diverse location by adjustment, just can make the index distribution that forms similar conventional solid lens in the liquid crystal layer, and satisfy the requirement of parameter f and d, thus formation 3 D stereo display effect.
As shown in Figure 2, present embodiment comprises: flat-panel screens 1 and the liquid crystal lens panel 2 between spectators and flat-panel screens 1 is characterized in that: described liquid crystal lens panel 2 comprises: the outer substrate 3 of nearly spectators' one side, the interior substrate 4 of hither plane display 1 one sides and outside, liquid crystal layer 5 between the interior substrate 4.
Described flat-panel screens 1 is conventional LCD (LCD), and it show to need according to 3 D stereo, and two or more anaglyphs are encoded to be shown after synthetic.In the present embodiment, be with three width of cloth have nuance the image that shows after synthetic of anaglyph.
Described outer substrate 3 is made for glass with interior substrate 4, and thickness is 0.5 millimeter.
The both sides that described outer substrate 3 and interior substrate 4 are relative, substrate 3 one sides are provided with the public electrode 6 that covers whole base plate outside, are provided with vertical bar shape transparent signal electrode layer 9 in interior substrate 4 one sides.The material of transparency electrode is ITO, and thickness is 200 nanometers.
Be respectively equipped with liquid crystal alignment layer 7 and both alignment layers 10 with liquid crystal layer 5 contacted sides on described outer substrate 3 and the interior substrate 4, its material is PI, and thickness is 100 nanometers;
Be provided with organic layer 11 between the liquid crystal alignment layer 10 in described on the substrate 4, to improve the Electric Field Distribution of liquid crystal layer 5 inside, this organic layer thickness is 2 microns.
As shown in Figure 3, for the vertical bar shape transparent signal electrode layer 9 on the substrate 4 in being evenly distributed on, be made up of several parallel strip shaped electric poles on it, wherein per 10 strip shaped electric poles are a unit, and total cycle of 10 electrodes is aforesaid cycle d, promptly 226.24 microns.V1 is different electric signal to V10, and it is loaded on the corresponding transparency electrode, forms Electric Field Distribution, controls the deflection of liquid crystal molecule, realizes the index distribution of similar needs, is f with the focal length of realizing liquid crystal lens.This signal electrode can need be made into skewed strip shaped electric poles by coring.
As shown in Figure 4, the liquid crystal lens panel structure chart for obtaining by software modeling.As we can see from the figure, liquid crystal layer 5 outside between substrate 3 and the interior substrate 4.Electrode is positioned at substrate inside, is used for simulating the buffer action of organic layer to electric field, on the interface of substrate and liquid crystal layer, all is provided with parallel alignment direction, to realize simulation pure electrically conerolled birefringence (ECB) drive pattern.
As shown in Figure 5, the refractive index profile that obtains for above-mentioned emulation because lens are symmetrical structure, is only drawn half index distribution situation of lens among the figure.In the drawings, solid line is desirable index distribution, and spherical point is distributed as the distribution that emulation obtains data, and contrast can obtain, and its both identical substantially.At this moment, in the unit, the voltage on 10 electrodes is respectively: 4.7995V, 2.8406V, 2.1744V, 1.7462V, 1.5613V, 1.5613V, 1.7462V, 2.1744V, 2.8406V, 4.7995V.
Present embodiment is with respect to traditional solid-state barrier or solid-state cylinder lens type 3D display technique, adopt liquid crystal material to form liquid crystal lens, not only can realize the conversion of 2D/3D, and, be loaded into voltage signal on the signal electrode by change, just can change index distribution, thereby adjust light path, change the display effect of 3D.So just simplify the process of optimizing and revising that 3D shows greatly, helped obtaining high performance 3D display performance.
Claims (10)
1. three-dimensional display screen based on liquid crystal lens, comprise: flat-panel screens and the liquid crystal lens panel between spectators and flat-panel screens, it is characterized in that: described liquid crystal lens panel comprises: the outer substrate of nearly spectators' one side, the interior substrate of hither plane display one side and outside, liquid crystal layer between the interior substrate, the image that described flat-panel screens shows is to show needs according to 3 D stereo, with encode image after synthetic of two or more anaglyphs.
2. the three-dimensional display screen based on liquid crystal lens according to claim 1, it is characterized in that, described flat-panel screens is cathode-ray tube display, plasma scope or LCD, and its display image is encode image after synthetic of two or more anaglyphs.
3. the three-dimensional display screen based on liquid crystal lens according to claim 1 is characterized in that, described outer substrate and interior substrate are square plate, and its size is complementary with corresponding flat-panel screens, and thickness is between 0.1 to 2 millimeter.
4. according to claim 1 or 3 described three-dimensional display screens based on liquid crystal lens, it is characterized in that, the side that described outer substrate is relative with interior substrate is equipped with transparency conducting layer, and this transparency conducting layer is for covering vertical bar shape, slanted bar shape transparent signal electrode layer or the transparent common electrode layer of whole outer substrate or interior substrate.
5. the three-dimensional display screen based on liquid crystal lens according to claim 4, it is characterized in that, described transparent signal electrode layer is made up of several parallel strip shaped electric poles, wherein: every 2-100 strip shaped electric poles is a unit, by add different voltages to each strip shaped electric poles to form refractive index distribution structure.
6. according to claim 1 or 3 described three-dimensional display screens, it is characterized in that be equipped with liquid crystal alignment layer with the contacted side of liquid crystal layer on described outer substrate and the interior substrate, thickness is that 10 nanometers are to 100 nanometers based on liquid crystal lens.
7. the three-dimensional display screen based on liquid crystal lens according to claim 1 is characterized in that, the periphery of described liquid crystal layer is provided with separaant with control thickness, and liquid crystal layer is that the liquid crystal material with electric controllable birefringence is made.
8. the three-dimensional display screen based on liquid crystal lens according to claim 7 is characterized in that, described separaant is that to carry projection or diameter be 1 to 100 micron microballoon to plate.
9. the three-dimensional display screen based on liquid crystal lens according to claim 1 is characterized in that, a side of described interior substrate hither plane display is provided with organic layer, and the thickness of this organic layer is 0.1 to 10 micron.
10. the three-dimensional display screen based on liquid crystal lens according to claim 1 is characterized in that, described in the substrate side that contacts with flat-panel screens be provided with the linear polarization film, the frictional direction of both alignment layers is consistent in the direction of this linear polarization film and the interior substrate.
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| CN201010171230A CN101840071A (en) | 2010-05-13 | 2010-05-13 | Three-dimensional monitor based on liquid crystal lens |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819375A (en) * | 2010-04-16 | 2010-09-01 | 浙江大学 | Total parallax three-dimensional display device |
| CN102141714A (en) * | 2011-03-31 | 2011-08-03 | 昆山龙腾光电有限公司 | Display device |
| CN102402096A (en) * | 2011-11-11 | 2012-04-04 | 昆山龙腾光电有限公司 | Liquid crystal lens, liquid crystal display panel and liquid crystal display device |
| CN102508382A (en) * | 2011-08-02 | 2012-06-20 | 友达光电股份有限公司 | Stereoscopic display and switching panel for stereoscopic display |
| CN102595170A (en) * | 2011-01-06 | 2012-07-18 | 索尼公司 | Image pickup apparatus and image processing method |
| CN103728806A (en) * | 2012-10-15 | 2014-04-16 | 株式会社日本显示器 | Display device |
| CN105242405A (en) * | 2012-06-07 | 2016-01-13 | 冯林 | 3D display method based on electrically-induced refractive index change |
| CN105575355A (en) * | 2016-03-18 | 2016-05-11 | 京东方科技集团股份有限公司 | Curved-surface display driving method and display apparatus |
| CN104049433B (en) * | 2014-06-25 | 2017-02-01 | 重庆卓美华视光电有限公司 | Driving method of stereoscopic display device |
| CN107561724A (en) * | 2017-11-01 | 2018-01-09 | 京东方科技集团股份有限公司 | 3 d display device and display device |
| CN110275311A (en) * | 2019-07-15 | 2019-09-24 | 合肥工业大学 | A kind of perspective three dimensional display device and three-dimensional display system based on liquid crystal lens array |
| CN110824819A (en) * | 2018-08-07 | 2020-02-21 | 三星电子株式会社 | Structured light projector and electronic device including the same |
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2010
- 2010-05-13 CN CN201010171230A patent/CN101840071A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819375A (en) * | 2010-04-16 | 2010-09-01 | 浙江大学 | Total parallax three-dimensional display device |
| CN101819375B (en) * | 2010-04-16 | 2012-05-30 | 浙江大学 | Total parallax three-dimensional display device |
| CN102595170A (en) * | 2011-01-06 | 2012-07-18 | 索尼公司 | Image pickup apparatus and image processing method |
| CN102141714A (en) * | 2011-03-31 | 2011-08-03 | 昆山龙腾光电有限公司 | Display device |
| CN102141714B (en) * | 2011-03-31 | 2013-10-23 | 昆山龙腾光电有限公司 | Display device |
| CN102508382B (en) * | 2011-08-02 | 2014-10-22 | 友达光电股份有限公司 | Stereoscopic display and switching panel for stereoscopic display |
| CN102508382A (en) * | 2011-08-02 | 2012-06-20 | 友达光电股份有限公司 | Stereoscopic display and switching panel for stereoscopic display |
| CN102402096A (en) * | 2011-11-11 | 2012-04-04 | 昆山龙腾光电有限公司 | Liquid crystal lens, liquid crystal display panel and liquid crystal display device |
| CN105242405A (en) * | 2012-06-07 | 2016-01-13 | 冯林 | 3D display method based on electrically-induced refractive index change |
| CN103728806A (en) * | 2012-10-15 | 2014-04-16 | 株式会社日本显示器 | Display device |
| CN104049433B (en) * | 2014-06-25 | 2017-02-01 | 重庆卓美华视光电有限公司 | Driving method of stereoscopic display device |
| CN105575355A (en) * | 2016-03-18 | 2016-05-11 | 京东方科技集团股份有限公司 | Curved-surface display driving method and display apparatus |
| CN107561724A (en) * | 2017-11-01 | 2018-01-09 | 京东方科技集团股份有限公司 | 3 d display device and display device |
| US11272169B2 (en) | 2017-11-01 | 2022-03-08 | Boe Technology Group Co., Ltd. | Viewpoint controllable three-dimensional image display apparatus and method for displaying three-dimensional image |
| CN110824819A (en) * | 2018-08-07 | 2020-02-21 | 三星电子株式会社 | Structured light projector and electronic device including the same |
| US11543740B2 (en) | 2018-08-07 | 2023-01-03 | Samsung Electronics Co., Ltd. | Structured light projector and electronic apparatus including the same |
| US11815795B2 (en) | 2018-08-07 | 2023-11-14 | Samsung Electronics Co., Ltd. | Structured light projector and electronic apparatus including the same |
| CN110275311A (en) * | 2019-07-15 | 2019-09-24 | 合肥工业大学 | A kind of perspective three dimensional display device and three-dimensional display system based on liquid crystal lens array |
| CN110275311B (en) * | 2019-07-15 | 2022-04-12 | 合肥工业大学 | Perspective three-dimensional display device and three-dimensional display system based on liquid crystal lens array |
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Open date: 20100922 |