CN205679864U

CN205679864U - A kind of integration imaging double vision 3D display device based on dual-polarization grating

Info

Publication number: CN205679864U
Application number: CN201620590737.8U
Authority: CN
Inventors: 吴非; 樊为
Original assignee: Chengdu Technological University CDTU
Current assignee: Chengdu Technological University CDTU
Priority date: 2016-06-16
Filing date: 2016-06-16
Publication date: 2016-11-09
Anticipated expiration: 2026-06-16

Abstract

This utility model relates to double vision 3D and shows, particularly to a kind of integration imaging double vision 3D display device based on dual-polarization grating, including the 2D display screen I for showing pointolite array, show the 2D display screen II of micro-pattern matrix, polarization grating I and polarization grating II；Described polarization grating I is corresponding with the horizontal and vertical axis of described 2D display screen I to align, and fits tightly；Described polarization grating II is corresponding with the horizontal and vertical axis of described 2D display screen II to align, and fits tightly；The alignment corresponding with the horizontal and vertical axis of described polarization grating II of described polarization grating I.By using the integration imaging double vision 3D display device above based on dual-polarization grating, effectively overcome and use microlens array cost high and use the deficiency that pinhole array optical efficiency is low, provide convenience for promoting integration imaging double vision 3D Display Technique the most widely.

Description

A kind of integration imaging double vision 3D display device based on dual-polarization grating

Technical field

This utility model relates to double vision 3D and shows, shows particularly to a kind of integration imaging double vision 3D based on dual-polarization grating Showing device.

Background technology

Integration imaging double vision 3D shows the novel display of the one being occur in recent years, and its principle is at a 2D display screen Upper two micro-pattern matrixs of different sons of display simultaneously, by microlens array or pinhole array by two micro-pattern matrixs of son to Two different direction imagings, the beholder on different view directions can only see one of them 3D rendering, thus realizes Meet the different demands of multiple beholder on one 2D display screen simultaneously.

But, lenticular manufacturing cost and manufacturing process remain obstruction integration imaging double vision based on microlens array 3D shows wide variety of principal element.Although integration imaging double vision 3D based on pinhole array shows have lower cost, But integration imaging double vision 3D display device optical efficiency based on pinhole array is relatively low.In order to reduce manufacturing cost simultaneously The beneficial effect of the efficiency of the optics higher with holding, this utility model provides a kind of integration imaging based on dual-polarization grating double Depending on 3D display device.

Utility model content

The purpose of this utility model is to overcome in prior art employing microlens array relatively costly and uses pin hole battle array The deficiency that row optical efficiency is relatively low, it is provided that a kind of integration imaging double vision 3D display device based on dual-polarization grating.

To achieve these goals, this utility model provides techniques below scheme: a kind of collection based on dual-polarization grating Become imaging double vision 3D display device, including the 2D display screen I for showing pointolite array, show that the 2D of micro-pattern matrix shows Screen II, polarization grating I and polarization grating II；

Described polarization grating I is corresponding with the horizontal and vertical axis of described 2D display screen I to align, and fits tightly；

Described polarization grating II is corresponding with the horizontal and vertical axis of described 2D display screen II to align, and fits tightly；

The alignment corresponding with the horizontal and vertical axis of described polarization grating II of described polarization grating I.

Further, described 2D display screen is LCDs, plasma panel or organic EL display panel.

Further, described polarization grating I is formed by the unit close-packed arrays in the horizontal direction of series of identical size, Be positioned at described polarization grating I centre position is light transmitting cells, and be positioned at other positions of polarization grating I is polarization unit.

Further, each described polarization unit only has a kind of polarization direction, and two described polarizations of arbitrary neighborhood are single The polarization direction of unit is orthogonal.

Further, described polarization grating II is by the polarization unit close-packed arrays in the horizontal direction of series of identical size Forming, each described polarization unit only has a kind of polarization direction, the polarization direction of two described polarization units of arbitrary neighborhood Orthogonal.

Further, described micro-pattern matrix is made up of, by 3D scene sub micro-pattern matrix I and the micro-pattern matrix of son II The I micro-pattern matrix of son I obtained is positioned at the left-half of micro-pattern matrix；

The micro-pattern matrix of son II obtained by 3D scene II is positioned at the right-hand component of micro-pattern matrix；

The micro-pattern matrix of described son I and the micro-pattern matrix of described son II are respectively by the image tuple of series of identical size Become.

Further, unit in the number of point source and described polarization grating I in horizontal direction in described pointolite array Number equal.

Further, the number of horizontal direction epigraph unit and unit in described polarization grating II in described micro-pattern matrix Number equal.

Further, the number ratio of unit in described polarization grating I horizontal direction in described polarization grating II horizontal direction Many one of the number of unit.

Further, size p of polarization unit and the chi of polarization unit in described polarization grating II in described polarization grating I Very little d meets formula:

\frac{d}{p} = \frac{l}{l + g}

Wherein, l is viewing ratio,

l = \frac{d g}{p - d}

G is the spacing of described 2D display screen I and described 2D display screen II.

Compared with prior art, the beneficial effects of the utility model:

By using the integration imaging double vision 3D display device above based on dual-polarization grating, effectively overcome employing micro- Lens array cost is high and uses the deficiency that pinhole array optical efficiency is low, shows for promoting integration imaging double vision 3D the most widely Technology is provided convenience.

Accompanying drawing illustrates:

Fig. 1 is this utility model structure chart based on dual-polarization grating integration imaging double vision 3D display device；

Fig. 2 is the structural representation of polarization grating I of the present utility model；

Fig. 3 is the structural representation of polarization grating II of the present utility model；

Fig. 4 is the arrangement signal of micro-micro-pattern matrix of pattern matrix neutron I of the present utility model and the micro-pattern matrix of son II Figure；

Fig. 5 is the vision area scattergram of this utility model integration imaging based on dual-polarization grating double vision 3D display device.

Labelling in figure: 100-2D display screen I, 200-2D display screen II, 300-polarization grating I, 400-polarization grating II, The micro-pattern matrix of 500-, the 501-micro-pattern matrix I of son, the 502-micro-pattern matrix II of son, 600-3D vision area I, 700-3D vision area II, 800-3D scene I, 900-3D scene II.

Should be appreciated that above-mentioned accompanying drawing the most schematically, be not drawn to draw.

Detailed description of the invention

Below in conjunction with embodiment and detailed description of the invention, this utility model is described in further detail.But should be by this It is interpreted as that the scope of the above-mentioned theme of this utility model is only limitted to below example, all is realized based on this utility model content Technology belongs to scope of the present utility model.

Embodiment 1

The utility model proposes integration imaging double vision 3D display device based on dual-polarization grating.As it is shown in figure 1, this system Including the 2D display screen I 100 of display pointolite array, show the 2D display screen II 200 of micro-pattern matrix, polarization grating I 300 He Polarization grating II 400.

As in figure 2 it is shown, polarization grating I 300 is by the polarization unit close-packed arrays in the horizontal direction of series of identical size Composition, be positioned at polarization grating I 300 centre position is light transmitting cells, and be positioned at other positions of polarization grating I 300 is that polarization is single Unit, each polarization unit only has a kind of polarization direction, and the polarization direction of two polarization units of arbitrary neighborhood is orthogonal.

As it is shown on figure 3, polarization grating II 400 is by the polarization unit close-packed arrays in the horizontal direction of series of identical size Composition, each polarization unit only has a kind of polarization direction, and the polarization direction of two polarization units of arbitrary neighborhood is orthogonal.

As shown in Figure 4, micro-pattern matrix 500 is made up of sub micro-pattern matrix I 501 and the micro-pattern matrix of son II 502, passes through The micro-pattern matrix of son I 501 that 3D scene I 800 obtains is positioned at the left-half of micro-pattern matrix, and is obtained by 3D scene II 900 The micro-pattern matrix of son II 502 taken is positioned at the right half part of micro-pattern matrix.The micro-pattern matrix I 501 of son and the micro-pattern matrix of son II 502 are made up of the image primitive of series of identical size respectively.

As it is shown in figure 5, the full-polarization that the point source being positioned at 2D display screen I 100 centre sends is by polarization grating I 300 Light transmitting cells, remain full-polarization, the image primitive in micro-pattern matrix centre position can be illuminated；It is positioned at 2D display screen I 100 The full-polarization that the point source of other positions sends, by the polarization unit in polarization grating I 300, becomes polarized light, due to partially The II 400 pairs of polarized light of grating that shake have modulating action, therefore can only illuminate the image primitive of correspondence, and can not illuminate and correspondence image The image primitive that unit is adjacent.Therefore, the image primitive in sub micro-pattern matrix I 501 is on the left side of integration imaging double vision 3D display device 3D vision area I 600 reconstruct 3D scene I 800, the image primitive in sub micro-pattern matrix II 502 shows at integration imaging double vision 3D The 3D vision area II 700 on the left side on the right of device reconstructs 3D scene II 900, it is achieved thereby that integration imaging double vision 3D shows.

Concrete, viewing ratio be the spacing of l=90mm, 2D display screen I 100 and 2D display screen II 200 be g= 10mm, size p=10mm of unit in polarization grating I；Then according to formula

\frac{d}{p} = \frac{l}{l + g}

Calculate and size d=9mm of unit in polarization grating II.

Claims

1. an integration imaging double vision 3D display device based on dual-polarization grating, it is characterised in that include for showing a light The 2D display screen I of source array, shows the 2D display screen II of micro-pattern matrix, polarization grating I and polarization grating II；

Double vision 3D display device the most according to claim 1, it is characterised in that described 2D display screen be LCDs, Plasma panel or organic EL display panel.

Double vision 3D display device the most according to claim 1, it is characterised in that described polarization grating I is by series of identical The unit of size close-packed arrays in the horizontal direction forms, and be positioned at described polarization grating I centre position is light transmitting cells, is positioned at Other positions of polarization grating I are polarization units.

Double vision 3D display device the most according to claim 3, it is characterised in that each described polarization unit only has one Polarization direction, the polarization direction of two described polarization units of arbitrary neighborhood is orthogonal.

Double vision 3D display device the most according to claim 1, it is characterised in that described polarization grating II is by series of identical The polarization unit of size close-packed arrays in the horizontal direction forms, and each described polarization unit only has a kind of polarization direction, appoints The anticipate polarization direction of two adjacent described polarization units is orthogonal.

Double vision 3D display device the most according to claim 1, it is characterised in that described micro-pattern matrix is by sub micro-image battle array Row I and the micro-pattern matrix of son II form, and the micro-pattern matrix of son I obtained by 3D scene I is positioned at the left side of micro-pattern matrix Point；

The micro-pattern matrix of described son I and the micro-pattern matrix of described son II are made up of the image primitive of series of identical size respectively.

Double vision 3D display device the most according to claim 1, it is characterised in that in described pointolite array in horizontal direction The number of point source is equal with the number of unit in described polarization grating I.

Double vision 3D display device the most according to claim 1, it is characterised in that described micro-upper figure of pattern matrix horizontal direction The number of pixel is equal with the number of unit in described polarization grating II.

Double vision 3D display device the most according to claim 1, it is characterised in that single in described polarization grating II horizontal direction The number of unit is than many one of the number of unit in described polarization grating I horizontal direction.