CN102207632B - Stereoscopic display - Google Patents
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- CN102207632B CN102207632B CN2011101874979A CN201110187497A CN102207632B CN 102207632 B CN102207632 B CN 102207632B CN 2011101874979 A CN2011101874979 A CN 2011101874979A CN 201110187497 A CN201110187497 A CN 201110187497A CN 102207632 B CN102207632 B CN 102207632B
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Abstract
The invention relates to a stereoscopic display. On the basis of an electric control varifocal lens technology, the distribution and fluctuation degree of the refractive index of a holographic polymer dispersed liquid crystal box is changed by responding to voltage applied between a linear transparent electrode and a transparent conductive film so as to achieve a lens effect on visible light in the control voltage direction. A period can be switched between a two-dimensional (2D) working mode and a three-dimensional (3D) working mode and dynamic tracking regulation can be carried out according to the position of a user. The stereoscopic display is compatible with the conventional liquid crystal panel manufacturing technology, and has simple process and low cost. An electric control naked eye three-dimensional imaging effect is achieved and the brightness of a system is not lost. A display placement state can be rapidly switched in the transverse direction, the longitudinal direction and multiple directions, and the stability of resolution and integrated color uniformity is ensured. A three-dimensional naked eye stereoscopic display system can dynamically regulate various parameters of an equivalent cylindrical lens according to the position of a viewer so as to ensure the optimal viewing effect.
Description
Technical field
It is more particularly to a kind of to realize that 2D-3D is convertible and three-dimensional display with dynamic adjustment function the present invention relates to a kind of display.
Background technology
The spacing of the eyes of people in the horizontal direction is about 65mm, therefore when observing same object, there will be two slightly different visual angles, due to optical projection, fall apart from the different picture point of observer on the corresponding diverse location of left and right eyes retina, horizontal position difference on this retina of both eyes is referred to as binocular parallax, and stereoscopic vision is formed in human brain by the fusion of neutral net.
At present, most three-dimensional display system is in accordance with the mechanism of binocular perception steric information to obtain stereoscopic vision.The three-dimensional display of early stage is required for wearing specific eyes and could watched, although can obtain stereoscopic vision, but wear the natural vision impression that eyes hinder people.
The technology that 3 D stereo influence need not be watched by aid meets the demand that people pursue bore hole viewing 3D effect, and the technology of current main flow includes the autostereoscopic display based on parallax, holographic display and volume and shown.
The light-splitting methods such as the bore hole stereoscopic display being imaged based on binocular parallax principle has Double liquid crystal object lens to show, reflective display, Fresnel Lenses, slit parallax grating and cylindrical lens.And the method for main flow has two kinds, i.e. slit parallax grating formula at present（As shown in Figure 1）With micro-cylindrical lens array（As shown in Figure 2）Display.The former stops that the light sent from selected composition pixel reaches the eyes of user using a series of simple vertical lines.By carefully selecting barrier shapes, position and the angle of viewing window can be adjusted.The major defect of disparity barrier is that the light for respectively enteing left and right two is respectively blocked 1/2nd by barrier, therefore inevitably results in the loss of display brightness.And in order to make up this loss, its power then must at least be promoted to original twice by back light for display device, this also brings a series of problem such as power, radiating and cost.Moreover, the bearing of trend of the metal wiring in the display panel of slit parallax grating three-dimensional display can be overlapped with the direction of grating slit, can cause folded line effect, i.e. beholder can observe the lines of light and shade on screen, drastically influence appreciation effect.And the latter, micro-cylindrical lens formula three-dimensional display, then in the absence of above mentioned problem, deviation realizes binocular parallax to the light that this technology is sent both sides sub-pixel using cylindrical lens to different directions respectively.Fig. 3 show micro-cylindrical lens array.Fig. 4 is a lens unit in array, and its four main parameter includes length, thickness, radius of curvature and pitch.The original screen panel plane of each cylinder lens cells may pass through cylindrical lens for any point on focal plane, therefore focal plane and be refracted as directional light.Its refractive light paths after cylindrical lens as shown in figure 5, for y=0 points, form a branch of light pencil parallel with optical axis, transmission direction angle is 0 °.For any point of y ≠ 0, its transmission direction angle is
In this course, light intensity is not almost lost, also in the absence of the puzzlement of folded line effect, therefore the three-dimensional display of this type is especially suitable for low-power consumption, the development trend of minimal thickness.
However, there is also some problems for the micro-cylindrical lens formula three-dimensional display based on conventional art.It is that difficulty of processing is big first：With length-width ratio 16:Exemplified by 10 19 cun of panel of LCD, its actual lateral length is 408.24 millimeters, and horizontal pixel arranges 1440 row, i.e. each column only 0.2835 mm wide altogether.If using the preparation method of conventional lenses, such as using optical glass or resin material, then accurately moulding on so narrow radius, its requirement to technique and equipment is very high.Secondly, lenticule must be aligned with each column pixel accurately mate, and small error can all cause the serious crosstalk between adjacent pixel, and this just causes very big influence to yield rate.Above all lens material is once solidify, then its focal length is just fixed from changing and adjusted, and can not realize focusing function.Such three-dimensional display can not carry out the dynamic adjustment at visual angle, also not have 2D-3D mode conversion functions.The problem of in terms of these above-mentioned costs and feature, all inevitably weakens the advantage of micro-cylindrical lens formula three-dimensional display.
The content of the invention
The problem of existing the present invention be directed to present three-dimensional display, propose a kind of three-dimensional display, based on automatically controlled Zoom lens technology, its mode of operation can be changed between 2D and 3D and can the orientation according to where user enter Mobile state tracking adjustment, compatible existing liquid crystal panel manufacturing technology, technique is simple, with low cost.
The technical scheme is that：A kind of three-dimensional display, include backlight module, gray-scale Control module, pixel control module, pattern and dynamic tracking control module successively from the bottom to top, gray-scale Control module is close to backlight module, so as to have relatively high degree of collimation through the light of the module, the upper and lower glass substrate and liquid crystal material sandwiched therebetween that gray-scale Control module is coated with transparent conductive layer by inner side are constituted；Pixel control module is by nesa coating, chromatic filter and glass substrate composition；The pattern and dynamic tracking control module are by nesa coating, holographic polymer dispersed liquid crystal box is constituted with glass substrate, in the inner side of top glass substrate, have towards the side of lower glass substrate along the vertically arranged two alignments shape transparency electrode of pixel cut-off rule vertical and horizontal, two arrays of electrodes crossover location mutually insulated, it is nesa coating towards top glass substrate side on the inside of lower glass substrate, holographic polymer dispersed liquid crystal box is located between upper lower glass substrate；Chromatic filter in the pixel control module is the filter plate that the color element arrays of RGB tri- are constituted, the color elements of RGB tri- are arranged in order in units of shape such as the sector of 30 ° of central angle, i.e. one complete three sector RGB sub-pixel groups of pixel cell are into 1/4 circular configuration, every 4 pixel cell, 12 sub-pixel units, which are staggered, constitutes a complete circular configuration.
The holographic polymer dispersed liquid crystal box, by changing itself index distribution fluctuating quantity in response to being applied to linear transparency electrode and the intermembranous voltage of electrically conducting transparent, and then is upwardly formed in control voltage side the lens effect to visible ray, its preparation process is：By liquid crystal material, polymer monomer, appropriate crosslinking agent, activator and initiator according to a certain percentage, Hybrid Heating is at isotropic state to the first step to 60~70 DEG C under dark conditions；Second step is being sufficiently stirred for and it is uniformly mixed with ultrasonic emulsification so as to prepare PDLC prepolymer mixing material；3rd step injects the mixture that Photosetting prepolymer and liquid crystal material are constituted in liquid crystal cell, and reserved material inlet is sealed, and the Ar for the 514nm that liquid crystal cell is placed on+Exposed under uniform Gaussian light field, exposure power is 10-12mw/cm2, the time for exposure is 60 to 120 seconds, and the transparent liquid crystal layer for the structure being embedded in nano-scale liquid crystal droplet in solidification post-consumer polymer is finally formed after the solidification that is separated.
The linear transparency electrode is formed by mask etching method, the first step, and transparent conductive material is coated on the glass substrate；Second step, photoresist is coated above ITO materials；3rd step, LASER Light Source or ultraviolet source are passed through using prefabricated mask plate irradiation substrate, and the photoresist not blocked is corroded；4th step, processing is performed etching to the ITO materials do not protected by photoresist；5th step, the photoresist still resided in above linear electrode is rinsed and peeled off.
The backlight module can use the CCFL of side-light type structure, also using the CCFL CCFLs of straight-down negative structure.
The beneficial effects of the present invention are：Three-dimensional display of the present invention, system operating mode can be switched fast between two dimension is shown in Three-dimensional Display, realize automatically controlled naked eye three-dimensional imaging effect, and ensure that system brightness is not suffered a loss；Display laying state can in transverse direction, it is longitudinal and multi-direction on be switched fast, and ensure the stabilization of resolution ratio and the overall color uniformity；Its three-dimensional naked-eye stereoscopic display system can dynamically adjust equivalent cylindrical lens parameters according to beholder position, to ensure that viewing effect is optimal.
Brief description of the drawings
Fig. 1 is parallax grating formula three-dimensional display schematic diagram；
Fig. 2 is micro-cylindrical lens formula three-dimensional display schematic diagram；
Fig. 3 is micro-cylindrical lens array schematic diagram；
Fig. 4 is a lens unit schematic diagram in micro-cylindrical lens array；
Fig. 5 is the index path that any two points are reflected through lens on micro-cylindrical lens focal plane；
Fig. 6 is three-dimensional display general structure sectional side elevation of the present invention；
Fig. 7 is lens liquid crystal layer pole plate wiring top view in three-dimensional display of the present invention；
Fig. 8 is to form cylindrical lens shape Electric Field Distribution schematic diagram from top crown to bottom crown under pattern and dynamic tracking module longitudinal direction linear electrode opening in three-dimensional display of the present invention；
Fig. 9 is to form cylindrical lens shape Electric Field Distribution schematic diagram from top crown to bottom crown under pattern and dynamic tracking module transverse direction linear electrode opening in three-dimensional display of the present invention；
Figure 10 is pattern and dynamic tracking control modular structure schematic diagram in three-dimensional display of the present invention；
Figure 11 is that pattern in three-dimensional display of the present invention and dynamic tracking control module are being shown displayed across state diagram；
Figure 12 is pattern in three-dimensional display of the present invention and dynamic tracking control module in longitudinal dispaly state figure；
Figure 13 is pattern in three-dimensional display of the present invention and dynamic tracking control module in laterally disposed state diagram；
Figure 14 is pattern in three-dimensional display of the present invention and dynamic tracking control module in placed longitudinally state diagram；
Distributional pattern figures of the Figure 15 for the PDLC box of the invention by computer simulation in the energized state；
Figure 16 be 3D patterns of the present invention under PDLC box sectional side elevation；
Figure 17 be 2D patterns of the present invention under PDLC box sectional side elevation；
Figure 18 is Dynamic tracing feedback system schematic of the present invention.
Embodiment
A kind of three-dimensional display, its structure are as shown in fig. 6, including backlight module 1, gray-scale Control module, pixel control module and pattern and dynamic tracking control module.The upper and lower glass substrate 8 and liquid crystal sandwiched therebetween 2 that wherein gray-scale Control module is coated with ITO conducting films 7 by inner side are constituted.Pixel control module is by nesa coating, chromatic filter 3 and glass substrate composition.Pattern and dynamic tracking control module are by nesa coating 4, and holographic polymer dispersed liquid crystal box 6 is constituted with glass substrate 5.
Backlight module can be using side-light type structure, CCFL（Cold Cathode Fluorescent Lamp）CCFL, there is high power, high brightness, low energy consumption.Suitable for small-medium size display terminal, such as mobile phone, PDA, notebook computer or tablet personal computer display screen.
Backlight module also uses the CCFL CCFLs of straight-down negative structure.Envelope has argon gas, neon and mercury vapour mixture in fluorescent tube, and tube inner wall scribbles fluorescent material, for the large-sized LCD TV of high brightness or big screen LCD.
Gray-scale Control module is made up of nesa coating, common liquid crystals box and glass substrate.Wherein, transparency conducting layer is made up of ITO conducting films, pixel electrode and driving transistor.Coordination electrode makes liquid crystal molecule rotate corresponding angle by the liquid crystal applied voltages to sub-pixel, realizes the control of gray scale.
The display of conventional fixed-type only has single laying state, therefore the micro-cylindrical lens main shaft of traditional cylindrical lens formula three-dimensional display is Longitudinal extending.But develop with the portability of display terminal, gradually in full touch-screen mobile phone and the panel computer occurred recently, in iPhone, iPod touch and the iPad series of such as Apple Inc., occur in that the function that content visual direction is still kept after placement direction is changed.
In order to realize the switching of laterally and longitudinally dispaly state, pattern and dynamic tracking control module top crown two alignment shape transparency electrodes, two arrays of electrodes crossover location mutually insulated are arranged as shown in fig. 7, being respectively perpendicular along pixel cut-off rule vertical and horizontal.When being shown displayed across, as shown in figure 8, voltage is opened along the linear transparency electrode in longitudinal direction, the equivalent cylindrical lens array of Longitudinal extending is formed between pole plate.When display switches to longitudinal direction display, longitudinal direction is closed to voltage as shown in Figure 9, and transversely linear transparent voltage is put between pole plate lateral voltage, forms the equivalent cylindrical lens array extended laterally.
Pixel control module is by nesa coating, chromatic filter and glass substrate composition.As shown in Figure 10, the color elements of RGB tri- are arranged in order in units of shape such as the sector 300 of 30 ° of central angle, i.e. one complete three sector RGB sub-pixel groups of pixel cell are into 1/4 circular configuration, every 4 pixel cell, and 12 sub-pixel units are staggered one complete circular configuration of composition.One kind that each sub-pixel unit corresponds in RGB three primary colours.Under 2D display patterns, a certain basic color needed for each pixel cell corresponds to some sub-pixel；Under 3D display patterns, the left and right adjacent pixel unit on view direction is symmetrically split as corresponding to two pixels of right and left eyes respectively, and now each pixel is still comprising 3 RGB sub-pixels, and every kind of some sub-pixels of basic color are provided.As shown in figure 11, the red spectral needed for right-eye pixel is shown is provided by numbering for 1,4 two pieces of sub-pixels；Similarly, green light spectrum needed for the right-eye pixel is provided by two pieces of sub-pixels of numbering 2,5, and blue spectrum is provided by the sub-pixel of numbering 3,6.When display is under placed longitudinally state, cylindrical lens array derived from automatically controlled cylindrical lens module generation laterally, for beholder, pixel equally works as right and left eyes pixel respectively, and for display in itself, shown in Figure 12, pixel be split as on former direction above and below pixel.Wherein right-eye pixel shows that required red spectral is provided by numbering for 7,10 two pieces of sub-pixels；Required green light spectrum is provided by two pieces of sub-pixels of numbering 8,11；Blue spectrum is provided by the sub-pixel of numbering 9,12.Figure 13 is the lens array and the position relationship of pixel of the Longitudinal extending of pattern and the generation of dynamic tracking control module under the laterally disposed state of display.Figure 14 is the position relationship of the lens array extended laterally and pixel of pattern and the generation of dynamic tracking control module under the placed longitudinally state of display.Due to the high symmetry of circular pixel structure, so that no matter display can ensure that the uniformity for switching the effective work area of rear left right-eye pixel and distribution of color in laying state is constant under laterally or longitudinally working condition, i.e. the stability of resolution ratio and color uniformity.
Pattern and dynamic tracking control module are by nesa coating, and holographic polymer dispersed liquid crystal box is constituted with glass substrate.As shown in Figure 10, up transparent polar plate 100 has been evenly coated with ITO conducting films in the whole surface of the side of transparent polar plate 200 downwards；In lower section, transparent polar plate is towards top transparent polar plate side, and it is carved with linear electrode 400 corresponding to each pixel segmentation line position parallel interval width L, when display system works in 3 d mode, circuit is controlled to apply asymmetric voltage to two layers of conducting film up and down, liquid crystal interlayer is set to form from electrode to whole infrabasal plate radiant type Electric Field Distribution, periodicity Parallel Symmetric state is presented in Electric Field Distribution, the optical axis direction of liquid crystal droplet is along power line directional spreding, it is big that center is presented in its refractive index, both sides are small, the periodic distribution being gradually reduced from center to both sides, as indicated at 500.Figure 15 is by distribution map of the electric field between the pole plate of computer simulation.With the change of driving voltage, electric field line distribution also changes therewith between plate, then PDLC index distribution also can be different.Cylindrical lens array is equivalent in optical property, its focal length can in real time be adjusted according to the feedback signal of dynamic tracking system by controlling the height of nesa coating energization size, position and voltage；When the system work of display in 2 d mode when, as shown in the figure 16, control circuit for eliminating electric field, liquid crystal recovers to be equivalent to glass parallel flat in the unified ordinary index of refraction, optical property, to light without refraction action.Holographic polymer dispersed liquid crystal（HPDLC）The effect of the cylindrical lens of material, it is that we realize the electric control zooming property of equivalent cylindrical lens using the refractive index fluctuation degree of electric field controls PDLC produced by the fluctuating distribution for having the refractive index produced due to the period profile of liquid crystal droplet by holographic polymer dispersed liquid crystal.Liquid crystal droplet director random alignment in holographic polymer dispersed liquid crystal, consider to be free of in preferable situation, liquid crystal and liquid crystal is free of in polymer, polymer, being separated, it is complete to carry out, and the refractive index of generally richness liquid crystal region PDLC hololens is expressed as：
The refractive index of rich in polymers region clustering thing dispersed LCD hololens is
, then PDLC hololens produce refractive index fluctuating distribution two extreme values be respectively
.When applying voltage to PDLC hololens, direction of an electric field is perpendicular to lens surface, and liquid crystal director will be parallel to electric field orientation, therefore liquid crystal director is also perpendicular to hololens surface.The ordinary index of refraction of liquid crystal is then substantially equal to for the effective refractive index with the light of Prague incident angles, liquid crystal
, that is to say, that the refractive index of the rich liquid crystal region of PDLC hololens becomes in the case where having added electric field.If the refractive index polymer of selection
Equal with the ordinary index of refraction of liquid crystal, then the fluctuating distribution for eliminating refractive index and scattering coefficient after voltage is also wiped free of.One piece of refractive index is now just corresponded in polymer dispersed liquid crystal layer optical property is
Plate glass.As shown in figure 17, by loading certain voltage in upper bottom crown, cylindrical lens shape Electric Field Distribution is formed from top crown 100 to bottom crown 200.So, system not only can carry out being switched fast between 2D and 3D patterns by changing the "on" position of module, and possess the ability continuously focused by adjusting the size of voltage, coordinate Dynamic tracing feedback signal, can according to beholder apart from screen far and near adjust automatically viewing ratio, it is ensured that viewing effect is optimal.
Display uses screen aspect ratio 16：:10 19 cun of panels, its actual lateral length is 408.24 millimeters, and longitudinally wide is 255.15 millimeters, and pel spacing is 0.567 millimeter, and effective resolution is 720 × 900 dpi.Viewing ratio is set as 750 millimeters.Equivalent micro-cylindrical lens pitch is 0.5645 millimeter, and micro-cylindrical lens thickness is 4.9067 millimeters.
It is equipped with human eye Dynamic tracing feedback system as shown in figure 18.The system is equipped with one and has near-infrared LED light source and a CCD camera.Passed through pupil tracking technology, the position of the reflections of high brightness point formed using the CCD light for catching near-infrared light source transmitting on eyes of user cornea, then, the position signalling feeds back to computer disposal, and computer draws the distance between beholder and display according to particular algorithm.Then calculate the pixel display adjustment signal and lens liquid crystal layer focussing signals on display panel respectively again, wherein viewing ratio D follows formula with refractive index n, the pitch p of equivalent post lens and focal length f relation：
Because the focal plane of cylindrical lens is at itself bottom surface, all f are the thickness of equivalent cylindrical lens.It is not difficult to find out, when the timings of refractive index n mono-, pitch p is smaller or focal length f is bigger, then viewing distance is more remote.Thus, when beholder changes apart from the position of screen, system can be by the every optical parametric of human eye Dynamic tracing feedback system adjust automatically display and display signal, to ensure that appreciation effect is optimal.
Display panel, the rounded structure of each pixel cell of display panel, each sub-pixel is arranged according to RGB order successively with the fan-shaped of 30 ° of central angle, i.e., one complete pixel cell is by four groups, every group of three RGB sub-pixels, altogether 12 subelements be staggered composition.One kind that each sub-pixel unit corresponds in RGB three primary colours.Under 2D display patterns, a certain basic color needed for each pixel cell is provided by four with sub-pixels；Under 3D display patterns, each pixel cell is symmetrically split as corresponding to two pixels of right and left eyes respectively according to placement direction, and now each pixel amounts to six RGB sub-pixels comprising two groups, and every kind of basic color is provided by two with sub-pixels.
The poly- lens liquid crystal layer uses new holographic polymer dispersion liquid（HPDLC）Material.The effect of its cylindrical lens, is realized by the fluctuating distribution of the refractive index of electric field controls holographic polymer dispersed liquid crystal.Its accurate focusing ability, then realized by controlling interlayer electric pulse field parameter, such as voltage, and energization scope.Electrically conducting transparent pole plate of the liquid crystal layer equipped with two pieces of plan-parallel structures, the lower section pole plate of transparency electrode corresponds to equivalent cylindrical lens bottom surface, and it uniformly coats tin indium oxide towards polymer dispersion liquid crystal material side, i.e. liquid crystal layer inner side（ITO）Nesa coating；Top pole plate corresponds to equivalent cylindrical lens curved surface top, just to tin indium oxide of the horizontal and vertical equivalent lens curved surface ceiling for accumulation location arrangements spacing for single cylindrical lens diameter（ITO）Electrically conducting transparent line.Transverse conductance line intersects with longitudinal conductor wire, and mutually insulated.When display is in laterally disposed state, the conductive line voltage in liquid crystal layer longitudinal direction is opened, and arranges equivalent cylindrical lens horizontal parallel.When display is in laterally disposed state, former longitudinal voliage is closed, and former lateral voltage is opened, and is held in lens array pattern of rows and columns of beholder's horizontal direction.
Dynamic tracing feedback system, the dynamic feedback system is made up of a tool near-infrared LED light source and a CCD camera and computer control module, display panel control module and liquid crystal lens electronic control module.Pass through pupil tracking technology, the position signalling of the reflections of high brightness point formed using the CCD light for catching near-infrared light source transmitting on eyes of user cornea, and the position signalling is fed back into computer disposal, computer draws the distance between beholder and display according to particular algorithm.Then calculate the pixel display adjustment signal and lens liquid crystal layer focussing signals on display panel respectively again.Ensure that optimal viewing location is directed at beholder or so two all the time.
The core texture of three-dimensional display includes display module and pattern and dynamic tracking control module.
There are display module multiple two-dimensional colors to show the required pixel cell being made up of three basic colors red R, green G and blue B sub-pixel.As shown in Figure 10, the color elements of RGB tri- are arranged in order in units of shape such as the sector 300 of 30 ° of central angle, i.e. one complete three sector RGB sub-pixel groups of pixel cell are into 1/4 circular configuration, every 4 pixel cell, and 12 sub-pixel units are staggered one complete circular configuration of composition.One kind that each sub-pixel unit corresponds in RGB three primary colours.Under 2D display patterns, a certain basic color needed for each pixel cell corresponds to some sub-pixel；Under 3D display patterns, the left and right adjacent pixel unit on view direction is symmetrically split as corresponding to two pixels of right and left eyes respectively, and now each pixel is still comprising 3 RGB sub-pixels, and every kind of some sub-pixels of basic color are provided.As shown in figure 11, the red spectral needed for right-eye pixel is shown is provided by numbering for 1,4 two pieces of sub-pixels；Similarly, green light spectrum needed for the right-eye pixel is provided by two pieces of sub-pixels of numbering 2,5, and blue spectrum is provided by the sub-pixel of numbering 3,6.When display is under placed longitudinally state, cylindrical lens array derived from pattern and the generation laterally of dynamic tracking control module, for beholder, pixel equally works as right and left eyes pixel respectively, and for display in itself, shown in Figure 12, pixel be split as on former direction above and below pixel.Wherein right-eye pixel shows that required red spectral is provided by numbering for 7,10 two pieces of sub-pixels；Required green light spectrum is provided by two pieces of sub-pixels of numbering 8,11；Blue spectrum is provided by the sub-pixel of numbering 9,12.Figure 13 is the lens array and the position relationship of pixel of the Longitudinal extending of pattern and the generation of dynamic tracking control module under the laterally disposed state of display.Figure 14 is the position relationship of the lens array extended laterally and pixel of pattern and the generation of dynamic tracking control module under the placed longitudinally state of display.Due to the high symmetry of circular pixel structure, so that no matter display can ensure that the uniformity for switching the effective work area of rear left right-eye pixel and distribution of color in laying state is constant under laterally or longitudinally working condition, i.e. the stability of resolution ratio and color uniformity.
Display module includes backlight module, glass substrate, ITO nesa coating, gray-scale Control liquid crystal, ITO nesa coating, glass substrate, colored filter composition from the bottom to top.
As shown in Figure 16,17, pattern and dynamic tracking control module are constituted including top glass substrate 12, nesa coating 15, holographic polymer dispersed liquid crystal box 11, linear transparency electrode 14 and lower glass substrate 13 from the bottom to top.There is the linear transparency electrode 14 that two groups of bearing of trends are respectively perpendicular side between top glass substrate downwards glass, and its top view can be found in Figure 15.With group electrode wires to be arranged in parallel at equal intervals, two arrays of electrodes line mutual insulating.
Holographic polymer dispersed liquid crystal box 11, by changing itself index distribution fluctuating quantity in response to the voltage being applied between linear transparency electrode 14 and nesa coating 15, and then is upwardly formed in control voltage side the lens effect to visible ray.Its preparation process is：1st, by liquid crystal material, polymer monomer, appropriate crosslinking agent, activator and initiator according to a certain percentage, Hybrid Heating, to 60~70 DEG C, is at isotropic state under dark conditions.2nd, it is being sufficiently stirred for and it is uniformly mixed with ultrasonic emulsification so as to prepare PDLC prepolymer mixing material, 3rd, the mixture for constituting Photosetting prepolymer and liquid crystal material is injected in liquid crystal cell, reserved material inlet is sealed, and the Ar for the 514nm that liquid crystal cell is placed on+Exposed under uniform Gaussian light field, exposure power is 10-12mw/cm2, the time for exposure is 60 to 120 seconds, and the transparent liquid crystal layer for the structure being embedded in nano-scale liquid crystal droplet in solidification post-consumer polymer is finally formed after the solidification that is separated.
The lower glass substrate for being coated with uniform ITO conducting films constitutes nesa coating 15.Linear transparency electrode 14 is formed by mask etching method.The first step, coats transparent conductive material on the glass substrate.Second step, photoresist is coated above ITO materials.3rd step, LASER Light Source or ultraviolet source are passed through using prefabricated mask plate irradiation substrate, and the photoresist not blocked is corroded.4th step, processing is performed etching to the ITO materials do not protected by photoresist.5th step, the photoresist still resided in above linear electrode is rinsed and peeled off.
Claims (4)
1. a kind of three-dimensional display, include backlight module, gray-scale Control module, pixel control module, pattern and dynamic tracking control module successively from the bottom to top, gray-scale Control module is close to backlight module, so as to have relatively high degree of collimation through the light of the module, first, second glass substrate and liquid crystal material sandwiched therebetween that gray-scale Control module is coated with ITO nesa coating by inner side are constituted；Pixel control module is by ITO nesa coating（7）, chromatic filter（3）With the second glass substrate composition；Characterized in that, the pattern and dynamic tracking control module are by linear transparency electrode conducting film（4）, holographic polymer dispersed liquid crystal box（6）With the 3rd, four glass substrates composition, in the 4th glass substrate（5）Inner side, have towards the side of the 3rd glass substrate along the vertically arranged two alignments shape transparency electrode conducting film of pixel cut-off rule vertical and horizontal（4）, two arrays of electrodes crossover location mutually insulated, nesa coating, holographic polymer dispersed liquid crystal box are plated in the 3rd glass substrate inner side towards the 4th glass substrate side（6）Between the 3rd, four glass substrate；Chromatic filter in the pixel control module is the filter plate that the color element arrays of RGB tri- are constituted, the color elements of RGB tri- are arranged in order in units of shape such as the sector of 30 ° of central angle, i.e. one complete three sector RGB sub-pixel groups of pixel cell are into 1/4 circular configuration, every 4 pixel cell, 12 sub-pixel units, which are staggered, constitutes a complete circular configuration.
2. three-dimensional display, the holographic polymer dispersed liquid crystal box, pass through the linear transparency electrode conducting film in response to being applied to the plating of the 4th glass substrate according to claim 1（4）Intermembranous voltage changes itself refractive index fluctuation degree with the electrically conducting transparent that is plated on the inside of the 3rd glass substrate, and then is upwardly formed in control voltage side the post lens effect to visible ray；Its preparation process is：By liquid crystal material, polymer monomer, appropriate crosslinking agent, activator and initiator according to a certain percentage, Hybrid Heating is at isotropic state to the first step to 60~70 DEG C under dark conditions；Second step is being sufficiently stirred for and it is uniformly mixed with ultrasonic emulsification so as to prepare PDLC prepolymer mixing material；3rd step injects the mixture that Photosetting prepolymer and PDLC prepolymer mixing material are constituted in liquid crystal cell, and reserved material inlet is sealed, and the Ar for the 514nm that liquid crystal cell is placed on+Exposed under uniform Gaussian light field, exposure power is 10-12mw/cm2, the time for exposure is 60 to 120 seconds, and the transparent liquid crystal layer for the structure being embedded in nano-scale liquid crystal droplet in solidification post-consumer polymer is finally formed after the solidification that is separated.
3. three-dimensional display according to claim 1, it is characterised in that the linear transparency electrode conducting film（4）Formed by mask etching method, the first step, transparent conductive material is coated on the 4th glass substrate；Second step, photoresist is coated above ITO materials；3rd step, LASER Light Source or ultraviolet source irradiation are prefabricated with the substrate of mask plate, and the photoresist not blocked is corroded；4th step, processing is performed etching to the ITO materials do not protected by photoresist；5th step, the photoresist still resided in above linear transparency electrode is rinsed and peeled off.
4. three-dimensional display according to claim 1, it is characterised in that the backlight module is using the CCFL of side-light type structure or the CCFL CCFLs of straight-down negative structure.
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|---|---|---|---|---|
| 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 |
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