CN104049371B - Disparity barrier module is used in a kind of 3D display - Google Patents
Disparity barrier module is used in a kind of 3D display Download PDFInfo
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Abstract
Disparity barrier module is used in a kind of 3D display, belongs to image display technology field.The present invention adopts and makes surperficial electronegative carbon black particle as disparity barrier material through surface modification treatment, there is electrophoresis thus be gathered in noble potential transparency electrode surface to form disparity barrier in the electronegative carbon black particle in surface, adapt to 3D display under electric field action; After cancelling bias voltage, surperficial electronegative carbon black particle is dispersed in dispersion liquid owing to mutually repelling, thus does not affect the display of 2D image.The present invention has simple, the with low cost and easy to operate feature of structure, and can adapt to the mutual conversion between 3D rendering and 2D image.
Description
Technical field
The invention belongs to image display technology field, relate to bore hole 3D display technique, especially relate to the disparity barrier module in bore hole 3D display technique.
Background technology
The flat-panel display device of Today, most belongs to two dimensional display part, can only display plane image.Stereoscopic sensation, the stereovision of the scene that two dimension shows and object are strong, and spectators are difficult to sensation on the spot in person.Along with the progress of people's life, the demand for display technique picture perception also improves thereupon, and simple two dimension display can not meet the requirement of people.The development of display technique is exactly to bring people picture impression more natural, more true to nature.And the realism that 3D display technique can allow people have in viewing and admiring to stay seemingly wherein just and the incomparable three-dimensional perception of two dimension display, 3D display technique all has broad application prospects in many aspects such as video display entertainment life, industrial building design, hygiene medical treatment, video communication and military affairs.
The ultimate principle of 3D display technique as shown in Figure 1, is the coordination stereo-picture discriminance analysis relying on human eye and brain, is mainly divided into helping and looks 3D technology and bore hole 3D technology.Help and mainly through external special equipment the stereo image information of images of left and right eyes sent into the images of left and right eyes of people respectively depending on 3D technology thus realize 3D effect; Bore hole 3D technology then mainly regulates the angle of light by the disparity barrier module on screen thus the images of left and right eyes making left-and right-eye images send into people respectively realizes 3D display effect.Wherein help and look 3D technical development comparatively early, but help and need beholder to wear special eyeglasses depending on 3D technology, so just limit the visual field and visual angle, also reduce brightness and the resolution of picture simultaneously, certain customers even also there will be the symptoms such as dizzy; And bore hole 3D technology does not need the utility appliance worn by other, but the eyes allowing the light after the process of screen end enter user just directly can obtain the image of 3D display, for viewing user comfortable facility very, therefore become the Main way of 3D display technique research.
Although can realize the principle approach huge number of bore hole 3D display, in these equipment gone on the market at present, what great majority used is disparity barrier module.Disparity barrier module is a kind of a kind of structured material being close to two dimensional display part screen surface, its principle of work as shown in Figure 1, it is the disparity barrier forming a raster pattern at flat panel display screen front (between human eye and screen), this disparity barrier makes the 3D left-eye image shown in image can only enter the left eye of spectators, and the 3D eye image shown in image can only enter the right eye of spectators, thus produce stereoeffect in spectators' brain.
The most original 3D disparity barrier module is a kind of fixed disparity barrier module, and the disparity barrier that this fixed disparity barrier module is formed is changeless, can only be used for showing 3D rendering, and can not change between 3D rendering and 2D image.The display not affecting 2D image is wished in the use of usual disparity barrier module, and therefore disparity barrier module should adapt to change between 3D rendering and 2D image.Existing disparity barrier module many employings high molecule liquid crystal layer that can adapt to carry out between 3D rendering and 2D image changing is to form disparity barrier, but such disparity barrier module exists electrode structure complexity and the higher weak point of liquid crystal material cost.
Carbon black pellet surface almost presents the characteristic of ater, has stronger light-proofness, meets the basic demand as disparity barrier material, and cost of carbon black is cheap, but cohesiveness between carbon black pellet is comparatively strong, and surface free energy is high, very easily form larger aggregate, should not disperse.Carbon black is utilized to be faced with the problem how adapting to carry out between 3D rendering and 2D image changing as disparity barrier material.
Summary of the invention
The invention provides a kind of 3D display disparity barrier module, this disparity barrier module can adapt to the mutual conversion between 3D rendering and 2D image, and has simple, the with low cost and easy to operate feature of structure.
Technical solution of the present invention is as follows:
Disparity barrier module is used in a kind of 3D display, comprise the first transparency carrier 10, second transparency carrier 11, first transparency electrode 20, second transparency electrode 21, wherein the first transparency electrode 20 is attached to the first transparency carrier 10 surface, and the second transparency electrode 21 is attached to the second transparency carrier 11 surface; Between first transparency electrode 20 and the second transparency electrode 21, there is some transparent dielectric materials 30 be parallel to each other, all transparent dielectric material 30 fixed bondings and between the first transparency electrode 20 and the second transparency electrode 21, and the space between the first transparency electrode 20 and the second transparency electrode 21 is divided into some parallel distributions and equally spaced subspace 31; The dispersed system of surperficial electronegative carbon black particle is poured into, then overall package in all subspaces 31.
Described 3D display disparity barrier module is mounted on flat panel display screen surface, when showing for 3D, bias voltage is applied between the first transparency electrode 20 and the second transparency electrode, there is electrophoresis thus be gathered in noble potential transparency electrode surface to form disparity barrier in the electronegative carbon black particle in surface, the disparity barrier formed can make that left-eye image only enters observer's left eye and eye image only enters observer's right eye under electric field action; When not applying bias voltage between the first transparency electrode 20 and the second transparency electrode, surperficial electronegative carbon black particle is dispersed in dispersion liquid owing to mutually repelling, thus does not affect the display of 2D image.
In above-mentioned 3D display disparity barrier module, the dispersed system of the electronegative carbon black particle in described surface is scattered in dispersion liquid by the electronegative carbon black particle in surface and obtains, and described dispersion liquid is the organic solution of zellon or zellon.In order to improve the dispersion effect of surperficial electronegative carbon black particle in dispersion liquid, in dispersed system, suitably surfactant can be added, as: sorbitan mono-oleic acid ester (Span-80) or sodium dodecylsulphonate (SDS).The electronegative carbon black particle in described surface is obtained through concentrated nitric acid oxidation modification by carbon black pellet, and detailed process is: first commercially available carbon black pellet is carried out to the baking process at 200 DEG C, to remove the moisture and amount of grease impurity that adsorb in carbon black; Then the carbon black pellet after baking process being scattered in mass percent concentration is in the concentrated nitric acid solution of 67%, temperature constant magnetic stirring 8 hours at 120 DEG C, and whole process adopts condensation reflux unit to ensure the concentration of nitric acid; Finally carry out ball-milling treatment by after the carbon black pellet filtration after red fuming nitric acid (RFNA) process, cleaning, ball milling material obtains surperficial electronegative carbon black particle after drying.
In addition, without the need to special instruction, those skilled in the art should know: in technique scheme, and described transparency carrier material should adopt glass, and described transparency electrode should adopt ITO electrode, and described transparent dielectric material 30 should adopt glass.
Essence of the present invention adopts to make surperficial electronegative carbon black particle as disparity barrier material through surface modification treatment.Usually in carbon black generative process, carbon black pellet gathering links together, and the cohesiveness between particle is comparatively strong, and surface free energy is high, very easily forms larger aggregate, should not disperse.But in commercial production and research application, in order to ensure the premium properties of carbon black materials, generally need carbon black pellet can form uniform and stable dispersed system at solvent.So need to carry out surface modification to carbon black.Nitric acid is a kind of strong oxidizing solution, can introduce based on the multiple oxygen-containing functional group of carboxyl, phenolic hydroxyl group at carbon blacksurface, and along with the rising of temperature of reaction, the intensification of carbon blacksurface degree of oxidation.The present invention adopts red fuming nitric acid (RFNA) to carry out deep oxidation modification as the oxygenant of liquid phase method to carbon blacksurface.First produce in weakly acidic phenolic hydroxyl group at carbon blacksurface when oxidation modification starts, along with the carrying out of oxidation modification, degree of oxidation is deepened gradually, and weakly acidic hydroxyl is oxidized to highly acid carboxyl by further gradually.Red fuming nitric acid (RFNA) has volatility, after oxidation modification than be easier to remove, can not in carbon black residual impurity.In the process of oxidation modification, the number of carbon blacksurface oxygen-containing functional group can increase gradually, oxygen content in carbon black also can improve gradually, these acid oxygen-containing functional groups make carbon blacksurface negative charge amount increase, become fractional polar, the electrostatic repulsion between carbon black pellet can well hinder the gathering of carbon black pellet combine thus strengthen the dispersion stabilization of carbon black pellet.
The present invention in utilization, improves the structure of 3D display disparity barrier module, makes its structure simpler, more convenient to operate while surface modification treatment makes surperficial electronegative carbon black particle as disparity barrier material.、
In a word, 3D display disparity barrier module provided by the invention, has the advantages that structure is simple, with low cost and easy to operate, and can adapt to the mutual conversion between 3D rendering and 2D image.
Accompanying drawing explanation
Fig. 1 is that bore hole 3D shows basic principle schematic.
Fig. 2 is the cross-sectional view (not powering up) of 3D display disparity barrier module provided by the invention.
Fig. 3 is the cross-sectional view (powering up) of 3D display disparity barrier module provided by the invention.
Fig. 4 is the process flow diagram that in the present invention, carbon black pellet obtains surperficial electronegative carbon black particle through concentrated nitric acid oxidation modification.
Embodiment
Below in conjunction with the drawings and specific embodiments, patent of the present invention is further illustrated.
Disparity barrier module is used in a kind of 3D display, as shown in Figure 2, comprise the first transparency carrier 10, second transparency carrier 11, first transparency electrode 20, second transparency electrode 21, wherein the first transparency electrode 20 is attached to the first transparency carrier 10 surface, and the second transparency electrode 21 is attached to the second transparency carrier 11 surface; Between first transparency electrode 20 and the second transparency electrode 21, there is some transparent dielectric materials 30 be parallel to each other, all transparent dielectric material 30 fixed bondings and between the first transparency electrode 20 and the second transparency electrode 21, and the space between the first transparency electrode 20 and the second transparency electrode 21 is divided into some parallel distributions and equally spaced subspace 31; The dispersed system of surperficial electronegative carbon black particle is poured into, then overall package in all subspaces 31.
Described 3D display disparity barrier module is mounted on flat panel display screen surface, when showing for 3D, bias voltage is applied between the first transparency electrode 20 and the second transparency electrode, as shown in Figure 3, there is electrophoresis thus be gathered in noble potential transparency electrode surface to form disparity barrier in the electronegative carbon black particle in surface, the disparity barrier formed can make that left-eye image only enters observer's left eye and eye image only enters observer's right eye under electric field action; When not applying bias voltage between the first transparency electrode 20 and the second transparency electrode, surperficial electronegative carbon black particle is dispersed in dispersion liquid owing to mutually repelling, thus does not affect the display of 2D image.
In above-mentioned 3D display disparity barrier module, the dispersed system of the electronegative carbon black particle in described surface is scattered in dispersion liquid by the electronegative carbon black particle in surface and obtains, and described dispersion liquid is the organic solution of zellon or zellon.In order to improve the dispersion effect of surperficial electronegative carbon black particle in dispersion liquid, in dispersed system, suitably surfactant can be added, as: sorbitan mono-oleic acid ester (Span-80) or sodium dodecylsulphonate (SDS).The electronegative carbon black particle in described surface is obtained through concentrated nitric acid oxidation modification by carbon black pellet, and detailed process is: first commercially available carbon black pellet is carried out to the baking process at 200 DEG C, to remove the moisture and amount of grease impurity that adsorb in carbon black; Then the carbon black pellet after baking process being scattered in mass percent concentration is in the concentrated nitric acid solution of 67%, temperature constant magnetic stirring 8 hours at 120 DEG C, and whole process adopts condensation reflux unit to ensure the concentration of nitric acid; Finally carry out ball-milling treatment by after the carbon black pellet filtration after red fuming nitric acid (RFNA) process, cleaning, ball milling material obtains surperficial electronegative carbon black particle after drying.
In addition, without the need to special instruction, those skilled in the art should know: in technique scheme, and described transparency carrier material should adopt glass, and described transparency electrode should adopt ITO electrode, and described transparent dielectric material 30 should adopt glass.
Claims (6)
1. disparity barrier module is used in a 3D display, comprise the first transparency carrier (10), the second transparency carrier (11), the first transparency electrode (20), the second transparency electrode (21), wherein the first transparency electrode (20) is attached to the first transparency carrier (10) surface, and the second transparency electrode (21) is attached to the second transparency carrier (11) surface; There is between first transparency electrode (20) and the second transparency electrode (21) some transparent dielectric materials (30) be parallel to each other, all transparent dielectric materials (30) are fixed between the first transparency electrode (20) and the second transparency electrode (21), and the space between the first transparency electrode (20) and the second transparency electrode (21) is divided into some parallel distributions and equally spaced subspace (31);
It is characterized in that, the dispersed system of the surperficial electronegative carbon black particle of perfusion in all subspaces (31), then overall package; Described 3D display disparity barrier module is mounted on flat panel display screen surface, when showing for 3D, bias voltage is applied between the first transparency electrode (20) and the second transparency electrode, there is electrophoresis thus be gathered in noble potential transparency electrode surface to form disparity barrier in the electronegative carbon black particle in surface, the disparity barrier formed can make that left-eye image only enters observer's left eye and eye image only enters observer's right eye under electric field action; When not applying bias voltage between the first transparency electrode (20) and the second transparency electrode, surperficial electronegative carbon black particle is dispersed in dispersion liquid owing to mutually repelling, thus does not affect the display of 2D image.
2. 3D display disparity barrier module according to claim 1, it is characterized in that, the dispersed system of the electronegative carbon black particle in described surface is scattered in dispersion liquid by the electronegative carbon black particle in surface and obtains, and described dispersion liquid is the organic solution of zellon or zellon.
3. 3D display disparity barrier module according to claim 2, is characterized in that, in order to improve the dispersion effect of surperficial electronegative carbon black particle in dispersion liquid, in dispersed system, suitably adds surfactant.
4. 3D display disparity barrier module according to claim 3, it is characterized in that, described surfactant is sorbitan mono-oleic acid ester or sodium dodecylsulphonate.
5. 3D display disparity barrier module according to claim 1, it is characterized in that, the electronegative carbon black particle in described surface is obtained through concentrated nitric acid oxidation modification by carbon black pellet, detailed process is: first commercially available carbon black pellet is carried out to the baking process at 200 DEG C, to remove the moisture and amount of grease impurity that adsorb in carbon black; Then the carbon black pellet after baking process being scattered in mass percent concentration is in the concentrated nitric acid solution of 67%, temperature constant magnetic stirring 8 hours at 120 DEG C, and whole process adopts condensation reflux unit to ensure the concentration of nitric acid; Finally carry out ball-milling treatment by after the carbon black pellet filtration after red fuming nitric acid (RFNA) process, cleaning, ball milling material obtains surperficial electronegative carbon black particle after drying.
6. 3D display disparity barrier module according to claim 1, is characterized in that, described transparency carrier material adopts glass, and described transparency electrode should adopt ITO electrode, and described transparent dielectric material (30) adopts glass.
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| CN104793426A (en) * | 2015-03-24 | 2015-07-22 | 深圳市广之爱文化传播有限公司 | Naked-eye 3D display device of tablet computer |
| CN106773444B (en) | 2017-03-22 | 2020-04-21 | 京东方科技集团股份有限公司 | Peep-proof device, peep-proof method thereof and display device |
| CN115148886A (en) * | 2022-06-29 | 2022-10-04 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
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| CN101900884B (en) * | 2010-05-20 | 2013-03-27 | 天马微电子股份有限公司 | Plane/stereo switchable liquid crystal display device |
| CN101825799A (en) * | 2010-05-26 | 2010-09-08 | 福州华映视讯有限公司 | Method for assembling naked-eye stereoscopic display |
| CN102096231B (en) * | 2011-02-24 | 2012-11-07 | 华映视讯（吴江）有限公司 | Three-dimensional display with changeable parallax barrier pattern |
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