CN103163651B - 3 d display device - Google Patents
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- CN103163651B CN103163651B CN201110424141.2A CN201110424141A CN103163651B CN 103163651 B CN103163651 B CN 103163651B CN 201110424141 A CN201110424141 A CN 201110424141A CN 103163651 B CN103163651 B CN 103163651B
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Abstract
The invention discloses a kind of 3 d display device, it comprises an image projecting module, multiple projection lens and a light path handover module, light path handover module is arranged between image projecting module and projection lens, light path handover module has an incidence surface and multiple different exiting surface, the signal of video signal that image projecting module produces enters light path handover module by incidence surface, light path handover module comprises multiple polarising beam splitter and a polarization adjustment module, polarization adjustment module is arranged between polarising beam splitter, light path handover module switches polarization adjustment module according to sequential and signal of video signal is directed to different exiting surface respectively, and form multiple imaging by exiting surface respectively through projection lens.
Description
Technical field
The present invention has about a kind of display device, and relates to a kind of 3 d display device and optical texture thereof especially.
Background technology
In recent years, the technology of stereo display breaks through gradually, starts have three-dimensional film, stereotelevision etc. to apply and asks city.The stereoscopic visual effect that three-dimensional display brings, is in fact simultaneously by the left-eye images of different visual angles and right-eye image, independently presents to the eyes of audience.By above-mentioned left-eye images and right-eye image can imitate eyes watch time, due to the Deep Canvas that eye relief distances brings.
Left-eye images and right-eye image independently must be projected to two of audience, and the right eye of audience can't see left-eye image, and vice versa.This display mode is generally by means of the optical light filter that beholder wears, common are dichroic filter method and polarization direction filter method, above-mentioned two kinds of methods all need user additionally to wear special optics eyes, could isolate the image information of two on same screen.
Bore hole stereo display technique is then the stereo display practice more newly developed, can not need just with the naked eye directly can watch three-dimensional image effect by special anaglyph spectacles.Refer to Fig. 1, it illustrates the schematic diagram of a kind of 3 d display device 100 of the prior art.
As shown in Figure 1, existing 3 d display device 100 scattering layer 146 that often comprises Liang Zu projector 120,122, lenticular lens array (convex lens layer 142 and convex lens layer 144) and be arranged between two convex lens layer.At present, existing stereo-image displaying system utilize two independently projector 120,122 form Liang Ge image display district 160,162 respectively at plane of vision, form stereoscopic vision with this corresponding left-eye images and right-eye image.In prior art, adopt two independently projector 120,122 to produce Liang Ge image display district 160,162, when needs produce multiple image display district, just need to arrange multiple projector.Therefore, existing 3 d display device involves great expense and weight and volume are unfavorable for more greatly carrying with.
Summary of the invention
The object of the present invention is to provide a kind of 3 d display device, with save multiple Imaing projector is set in order to multiple image display district in prior art cost, weight and space.
For solving the problem, the present invention proposes a kind of 3 d display device, it comprises light path handover module and has an incidence surface and multiple different exiting surface, by polarization adjustment module switchable in light path handover module, the signal of video signal that single image projecting module produces is directed to different projection lens by each exiting surface according to sequential by light path handover module.Therefore, 3 d display device of the present invention coordinates light path handover module just can have multiple optics outgoing route with single image projecting module, with this can save multiple Imaing projector is set in order to multiple image display district in prior art cost, weight and space.
One mode of content of the present invention is providing a kind of 3 d display device, it comprises an image projecting module, multiple projection lens and a light path handover module, this light path handover module is arranged between this image projecting module and described multiple projection lens, this light path handover module has an incidence surface and multiple different exiting surface, the signal of video signal that this image projecting module produces enters this light path handover module by this incidence surface, this light path handover module comprises multiple polarising beam splitter and a polarization adjustment module, this polarization adjustment module is arranged between described multiple polarising beam splitter, this light path handover module switches this polarization adjustment module according to sequential difference and this signal of video signal is directed to described multiple different exiting surface respectively, and form multiple imaging by described multiple exiting surface respectively through described multiple projection lens, described multiple imaging is the corresponding left-eye images of one wherein, described multiple imaging is the corresponding right-eye image of another one wherein.
According to an embodiment of content of the present invention, wherein said multiple projection lens comprises one first projection lens and one second projection lens, this light path handover module comprises one first polarising beam splitter and one second polarising beam splitter, first polarising beam splitter has an incidence surface, this signal of video signal enters this first polarising beam splitter by this incidence surface, and this first polarising beam splitter is in order to by this signal of video signal light splitting to be one first light beam and one second light beam with different polarization direction.Second polarising beam splitter has one first different exiting surface and one second exiting surface, and this second polarising beam splitter is in order to carry out conjunction light to this first light beam and this second light beam.Wherein, this polarization adjustment module is arranged on the light path between this first polarising beam splitter and this second polarising beam splitter, and this light path handover module switches this polarization adjustment module according to sequential difference.In a very first time point, this polarization adjustment module is opened, the polarization direction of this first light beam and this second light beam exchanges, and is projected to this first projection lens forms one first imaging through this second polarising beam splitter light beam closed after light by this first exiting surface.In one second time point, this polarization adjustment module is closed, the polarization direction of this first light beam and this second light beam is constant, is projected to this second projection lens forms one second imaging through this second polarising beam splitter light beam closed after light by this second exiting surface.
In above-described embodiment, wherein the polarization direction of this first light beam and this second light beam is different, and is respectively vertical polarization (S-polarized) or horizontal polarization (P-polarized).
In above-described embodiment, wherein the light beam of vertical polarization will be changed direction by reflecting by this first polarising beam splitter and this second polarising beam splitter, the light beam of horizontal polarization by this first polarising beam splitter and this second polarising beam splitter by straight-line pass.
In above-described embodiment, wherein this light path handover module also comprises one first reflecting prism and one second reflecting prism, and the dual-side of this first reflecting prism is respectively adjacent to a side of this first polarising beam splitter and a side of this second polarising beam splitter.The dual-side of this second reflecting prism is respectively adjacent to another side of this first polarising beam splitter and another side of this second polarising beam splitter.
In above-described embodiment, wherein this polarization adjustment module comprises a liquid crystal (the liquid crystal of changeable on off state, LC) layer, a ferroelectric formula liquid crystal (ferroelectric liquid crystal, FLC) layer, faraday's plate turn device (Faraday rotator), a Bo Keersi box (Pockels cell) photomodulator or a Kerr cell (Kerr cell) photomodulator etc.
According to another embodiment of content of the present invention, wherein said multiple projection lens comprises one first projection lens, one second projection lens and one the 3rd projection lens, and this light path handover module comprises the first polarising beam splitter, the second polarising beam splitter, the 3rd polarising beam splitter and the 4th polarising beam splitter.First polarising beam splitter has an incidence surface, and signal of video signal enters the first polarising beam splitter by incidence surface.3rd polarising beam splitter has one the 3rd exiting surface.4th polarising beam splitter has one first different exiting surface and one second exiting surface.Wherein, this polarization adjustment module comprises the first polarization regulon, the second polarization regulon, the 3rd polarization regulon, the 4th polarization regulon and the 5th polarization regulon.First polarization regulon is arranged on the light path between this first polarising beam splitter and the 3rd polarising beam splitter.Second polarization regulon is arranged on the light path between this first polarising beam splitter and this second polarising beam splitter.3rd polarization regulon is arranged on the light path between the 3rd polarising beam splitter and the 4th polarising beam splitter.4th polarization regulon is arranged on the light path between this second polarising beam splitter and the 4th polarising beam splitter.5th polarization regulon is arranged on the light path between this second polarising beam splitter and the 3rd polarising beam splitter, and wherein the 5th polarization regulon is fixed on opening.
Wherein, in a very first time point, this the first polarization regulon is opened, this second polarization regulon cuts out, the 3rd polarization regulon cuts out and the 4th polarization regulon is opened, and this signal of video signal is projected to this first projection lens by this first exiting surface and forms one first imaging by this light path handover module.
In one second time point, this the first polarization regulon is opened, this second polarization regulon cuts out, the 3rd polarization regulon is opened and the 4th polarization regulon cuts out, and this signal of video signal is projected to this second projection lens by this second exiting surface and forms one second imaging by this light path handover module.
In one the 3rd time point, this first polarization regulon cuts out, and this second polarization regulon is opened, and this signal of video signal is projected to the 3rd projection lens by the 3rd exiting surface and forms one the 3rd imaging by this light path handover module.
In above-described embodiment, wherein in this polarization adjustment module, this first polarization regulon, this second polarization regulon, the 3rd polarization regulon and the 4th polarization regulon comprise a liquid crystal (the liquid crystal of changeable on off state respectively, LC) layer, a ferroelectric formula liquid crystal (ferroelectric liquid crystal, FLC) layer, faraday's plate turn device (Faraday rotator), a Bo Keersi box (Pockels cell) photomodulator or a Kerr cell (Kerr cell) photomodulator etc.
In above-described embodiment, wherein in this polarization adjustment module, the 5th polarization regulon is fixed on opening, is half wavelength phases delayer (half wave phase retardar).
In above-described embodiment, wherein this light path handover module also comprises one first reflecting prism and one second reflecting prism.The dual-side of this first reflecting prism is respectively adjacent to a side of this first polarising beam splitter and a side of the 3rd polarising beam splitter.The dual-side of this second reflecting prism is respectively adjacent to a side of this second polarising beam splitter and a side of the 4th polarising beam splitter.
Accompanying drawing explanation
Figure 1 shows that the schematic diagram of a kind of 3 d display device of the prior art;
Figure 2 shows that the function block schematic diagram according to 3 d display device a kind of in one embodiment of the invention;
Figure 3 shows that the optical texture schematic diagram of Fig. 2 Stereo display device in an embodiment;
Figure 4 shows that the structural representation of light path handover module in Fig. 3.
Figure 5 shows that the optical texture schematic diagram of another embodiment Stereo display device;
Figure 6 shows that the functional block diagram according to 3 d display device a kind of in another embodiment of the present invention;
Figure 7 shows that the optical texture schematic diagram of Fig. 6 Stereo display device in an embodiment;
Figure 8 shows that the structural representation of light path handover module in Fig. 7.
Wherein, description of reference numerals is as follows:
100,300,500: 3 d display device
120,122: projector
142,144: convex lens layer
146: scattering layer
160,162: image display district
320,520: image projecting module
322,522: light source
324,524: light element
326,526: spatial light modulator
328,528: relay lens unit
340,540: light path handover module
342a, 342b, 542a, 542b, 542c, 542d: polarising beam splitter
344: polarization adjustment module
544a, 544b, 544c, 544d, 544e: polarization regulon
346a, 346b, 546a, 546b: reflecting prism
348: light element
360,362,560,562,564: projection lens
Embodiment
In order to make describing of content of the present invention more detailed and complete, can refer to the appended various embodiment of graphic and the following stated, number identical in graphic represents same or analogous element.But the embodiment provided also is not used to limit the scope that contains of the present invention, and the description of optical texture running is not used to limit its absolute relation, any structure reconfigured by element, produce the device with impartial effect, be all the scope that the present invention is contained.On the other hand, well-known element and step are not described in embodiment, to avoid causing unnecessary restriction to the present invention.
Refer to Fig. 2, it illustrates the function block schematic diagram according to 3 d display device 300 a kind of in one embodiment of the invention.As shown in Figure 2,3 d display device 300 comprises image projecting module 320, light path handover module 340 and multiple projection lens, in this embodiment, 3 d display device 300 comprises two groups of projection lens 360 altogether, 362, but the present invention is not with two groups of projection lens 360, and 362 are limited.
The signal of video signal V0 of image projecting module 320 in order to produce, as shown in Figure 2, in practical application, image projecting module 320 can comprise light source 322, light element 324, spatial light modulator (Spatial Light Modulator, SLM) 326 and relay lens (Relay Lens) unit 328.
See also Fig. 3, Fig. 3 is illustrated in the optical texture schematic diagram of Fig. 2 Stereo display device 300 in an embodiment.As shown in Figure 2 and Figure 3, the light beam that light source 322 produces is via the guiding of light element 324, the optical signalling with displaying contents information (color of corresponding left and right binocular vision, bright dark, pattern etc.) is formed through spatial light modulator 326, above-mentioned optical signalling exports the relaying image (intermediate images) for exporting through relay lens 328 corresponding to displaying contents information, i.e. signal of video signal V0 in this case.
Light path handover module 340 is arranged at image projecting module 320 and described multiple projection lens 360, between 362, the incidence surface of image projecting module 320 faced by light path handover module 340 has and multiple different exiting surface (being two exiting surfaces in this embodiment) are respectively in the face of projection lens 360,362, signal of video signal V0 is directed to different projection lens 360 according to sequential difference by light path handover module 340 respectively, 362, form different imaging V1 or imaging V2 with this.
Light path handover module 340 comprises polarising beam splitter (Polarization Beam Splitter, PBS) 342a, 342b and polarization adjustment module 344, and polarization adjustment module 344 is arranged at polarising beam splitter 342a, between 342b.
Light path handover module 340 switches polarization adjustment module 344 according to sequential difference and signal of video signal V0 is directed to described multiple different exiting surface respectively, and by described multiple exiting surface through described multiple projection lens 360,362 form two groups of imaging V1 respectively, V2, wherein, in part embodiment, imaging V1 or imaging V2 wherein one may correspond to the left eye of observer, namely as left-eye images, and another one may correspond to the right eye of observer, namely as right-eye image.
Thus, just based on light path handover module 340 by the image-guided extremely multiple projection lens of single image projecting module 320 in order to produce, and can form the Imaging Study district of different visual angles thus on the viewing plane, reach the effect of stereo display.
Below how signal of video signal V0 is directed to different exiting surfaces according to sequential difference by the light path handover module 340 illustrated in this case, see also Fig. 4, it illustrates the structural representation of light path handover module 340 in Fig. 3.
As shown in Figure 4, light path handover module 340 comprises polarising beam splitter 342a and polarising beam splitter 342b, polarising beam splitter 342a has incidence surface IN, signal of video signal V0 enters polarising beam splitter 342a by incidence surface IN, and polarising beam splitter 342a is in order to being light beam P1 and the light beam P2 with different polarization direction by signal of video signal V0 light splitting.In this embodiment, the polarization direction of light beam P1 is horizontal polarization (P-polarized), and the polarization direction of light beam P2 is vertical polarization (S-polarized).
Polarising beam splitter 342b, it has the first different exiting surface O1 and the second exiting surface O2, polarising beam splitter 342b in order to carry out conjunction light to light beam P1 and light beam P2.
Polarising beam splitter (Polarization Beam Splitter, PBS) there is in optical selective plane, when the light beam of vertical polarization (S-polarized) will be changed direction by reflecting by polarising beam splitter 342a and polarising beam splitter 342b, the light beam of horizontal polarization (P-polarized) passes through polarising beam splitter 342a and polarising beam splitter 342b by straight-line pass.
Wherein, this polarization adjustment module 344 is arranged on the light path between polarising beam splitter 342a and polarising beam splitter 342b, and light path handover module 340 switches polarization adjustment module 344 according to sequential difference.In this embodiment, polarization adjustment module 344 adopts the half-wave plate (half wave plate) of changeable on off state, in practical application, liquid crystal (liquid crystal can be adopted, LC) layer, ferroelectric formula liquid crystal (ferroelectric liquid crystal, FLC) layer, faraday's plate turn device (Faraday rotator), Bo Keersi box (Pockels cell) photomodulator or a Kerr cell (Kerr cell) photomodulator etc.
In addition, wherein light path handover module 340 also comprises reflecting prism 346a and reflecting prism 346b as shown in Figure 4.The dual-side of reflecting prism 346a is respectively adjacent to a side of polarising beam splitter 342a and a side of polarising beam splitter 342b, and in this example, reflecting prism 346a is positioned at the bottom side of polarising beam splitter 342a and position is the left side of polarising beam splitter 342b.The dual-side of reflecting prism 346b is respectively adjacent to another side of polarising beam splitter 342a and another side of polarising beam splitter 342b, in this example, reflecting prism 346b is positioned at the right side of polarising beam splitter 342a and position is the top side of polarising beam splitter 342b.
In a time point (time such as T=k), polarization adjustment module 344 is opened by light path handover module 340, polarization adjustment module 344 after unlatching is in order to exchange the polarization direction of light beam P1 and light beam P2, the polarization direction of light beam P1 changes vertical polarization (S-polarized) into, and the polarization direction of light beam P2 changes horizontal polarization (P-polarized) into, be projected to projection lens 360 through the polarising beam splitter 342b light beam closed after light by the first exiting surface O1 and form imaging V1.
In another time point (time such as T=k+1), polarization adjustment module 344 is closed by light path handover module 340, because polarization adjustment module 344 is closed, therefore the polarization direction of light beam P1 after polarising beam splitter 342a light splitting and light beam P2 is constant.Thus, projection lens 362 will be projected to by the second exiting surface O2 through the polarising beam splitter 342b light beam closed after light and form imaging V2.
As mentioned above, light path handover module 340 can be assigned to the first different exiting surface O1 and the second exiting surface O2 by different in time for the light beam of same incidence surface IN, and in this example, the first exiting surface O1 and the second exiting surface O2 are the different light output surface of perpendicularing to one another.
As shown in Figure 3 and Figure 4, the light beam that first exiting surface O1 exports can change light direct of travel further by light element 348 (as being convex lens cooperation reflecting plate in Fig. 3), form imaging V1 to enter this projection lens 362, but the present invention is not as limit.Refer to Fig. 5, it is illustrated in the optical texture schematic diagram of another embodiment Stereo display device 300, and in the embodiment shown as shown graphically in fig 5, light element 348 also can adopt reflecting prism to change light direct of travel.
Should be noted that, above-described embodiment Stereo display device 300 comprises two groups of projection lens 360 and projection lens 362, the sequential light splitting mechanism of light path handover module 340 in order to form a pair two, but the present invention is also not only limited with a pair two, can extend to the sequential light splitting of one-to-many according to same architecture further.
Refer to Fig. 6, Fig. 7 and Fig. 8, Fig. 6 illustrates the functional block diagram according to 3 d display device 500 a kind of in one embodiment of the invention.Fig. 7 is illustrated in the optical texture schematic diagram of Fig. 6 Stereo display device 500 in an embodiment.Fig. 8 illustrates the structural representation of light path handover module 540 in Fig. 7.
As shown in Figure 6,3 d display device 500 comprises image projecting module 520, light path handover module 540 and multiple projection lens, and in this embodiment, 3 d display device 500 comprises three groups of projection lens 560,562,564 altogether, but the present invention is not as limit.
In this embodiment, image projecting module 520 is in order to produce signal of video signal V0, and the inside structure of its 3 d display device 500 is roughly the same with the 3 d display device 300 in preceding embodiment, with reference to previous paragraph, separately can not repeat at this.
Its Main Differences is, 3 d display device 500 has single image projecting module 520 and three groups of projection lens 560,562,564, and light path handover module 540 can in order to distribute to three different exiting surface O1 by the light beam of single incidence surface IN according to sequential, O2, O3.As shown in Figure 8, light path handover module 540 comprises four polarising beam splitter 542a, 542b, 542c, 542d and polarization adjustment module, and in this example, polarization adjustment module comprises five polarization regulon 544a, 544b, 544c, 544d, 544e.
Wherein, polarising beam splitter 542a has incidence surface IN, and signal of video signal V0 enters polarising beam splitter 542a by incidence surface IN.Polarising beam splitter 542c has the 3rd exiting surface O3.The first exiting surface O1 that polarising beam splitter 542d is different and the second exiting surface O2.
Polarization regulon 544a is arranged on the light path between polarising beam splitter 542a and polarising beam splitter 542c.Polarization regulon 544b is arranged on the light path between polarising beam splitter 542a and polarising beam splitter 542b.Polarization regulon 544c is arranged on the light path between polarising beam splitter 542c and polarising beam splitter 542d.Polarization regulon 544d is arranged on the light path between polarising beam splitter 542b and polarising beam splitter 542d.Polarization regulon 544e is arranged on the light path between polarising beam splitter 542b and polarising beam splitter 542c.Four polarization regulons such as polarization regulon 544a ~ 544d must be changeable between opening and closed condition.Wherein polarization regulon 544e then can be fixed on opening.
In polarization adjustment module, polarization regulon 544a, polarization regulon 544b, polarization regulon 544c and polarization regulon 544d adopt liquid crystal (the liquid crystal of changeable on off state respectively, LC) layer, ferroelectric formula liquid crystal (ferroelectric liquid crystal, FLC) layer, faraday's plate turn device (Faraday rotator), Bo Keersi box (Pockels cell) photomodulator or Kerr cell (Kerr cell) photomodulator etc.
And polarization regulon 544e does not need the polarization adjustment element adopting changeable state, only need to adopt fixing half-wave plate (Halfwave plate), the half-wavelength phase delay device such as using birefraction material (Birefringent dielectric) to form (Half wave phase retardar).
In addition, light path handover module 540 also comprises reflecting prism 546a and reflecting prism 546b, and the dual-side of reflecting prism 546a is respectively adjacent to a side of polarising beam splitter 542a and a side of polarising beam splitter 542c.The dual-side of reflecting prism 546b is respectively adjacent to a side of polarising beam splitter 542b and a side of polarising beam splitter 542d.
Wherein, in a very first time point (time such as T=k), this polarization regulon 544a opens, this polarization regulon 544b closes, this polarization regulon 544c closes and this polarization regulon 544d opens, and signal of video signal V0 is projected to projection lens 560 by the first exiting surface O1 and forms imaging V1 by this light path handover module 540;
In one second time point (time such as T=k+1), this polarization regulon 544a opens, this polarization regulon 544b closes, this polarization regulon 544c opens and this polarization regulon 544d closes, and signal of video signal V0 is projected to projection lens 562 by the second exiting surface O2 and forms imaging V2 by this light path handover module 540; And
In one the 3rd time point (time such as T=k+2), this polarization regulon 544a closes, and this polarization regulon 544b opens, and signal of video signal V0 is projected to projection lens 564 by the 3rd exiting surface O3 and forms imaging V3 by light path handover module 540.
As mentioned above, switch each polarization regulon in polarization adjustment module by light path handover module 540, the signal of video signal V0 that single image projecting module 520 can be produced, is dispensed to three exiting surfaces, forms the sequential light splitting mechanism of a pair three.In like manner, according to the setting of light path handover module in above-mentioned two embodiments of the present invention, the rest may be inferred continues to extend, and can form the sequential multi-pass handover mechanism of a pair N (N is random natural number).Thus, single image projecting module just can be utilized to correspond to multiple projection lens.
In sum, the 3 d display device of this case comprises light path handover module and has an incidence surface and multiple different exiting surface, by polarization adjustment module switchable in light path handover module, the signal of video signal that single image projecting module produces is directed to different projection lens by each exiting surface according to sequential by light path handover module.Therefore, 3 d display device of the present invention with in single image projecting module coordinate light path handover module just can have multiple optics outgoing route, with this can save multiple Imaing projector is set in order to multiple image display district in prior art cost, weight and space.
Although the present invention discloses as above with embodiment; so itself and be not used to limit the present invention, anyly have the knack of this operator, without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, therefore protection scope of the present invention is when being as the criterion depending on the accompanying claim person of defining.
Claims (10)
1. a 3 d display device, comprises:
One image projecting module;
Multiple projection lens; And
One light path handover module, this light path handover module is arranged between this image projecting module and described multiple projection lens, this light path handover module has an incidence surface and multiple different exiting surface, the signal of video signal that this image projecting module produces enters this light path handover module by this incidence surface, this light path handover module comprises multiple polarising beam splitter and a polarization adjustment module, this polarization adjustment module is arranged between described multiple polarising beam splitter, this light path handover module switches this polarization adjustment module according to sequential difference and this signal of video signal is directed to described multiple different exiting surface respectively, and form multiple imaging by described multiple exiting surface respectively through described multiple projection lens, described multiple imaging is the corresponding left-eye images of one wherein, described multiple imaging is the corresponding right-eye image of another one wherein.
2. 3 d display device as claimed in claim 1, wherein said multiple projection lens comprises one first projection lens and one second projection lens, and this light path handover module comprises:
One first polarising beam splitter, it has an incidence surface, this signal of video signal enters this first polarising beam splitter by this incidence surface, and this first polarising beam splitter is in order to by this signal of video signal light splitting to be one first light beam and one second light beam with different polarization direction; And
One second polarising beam splitter, it has one first different exiting surface and one second exiting surface, and this second polarising beam splitter is in order to carry out conjunction light to this first light beam and this second light beam;
Wherein, this polarization adjustment module is arranged on the light path between this first polarising beam splitter and this second polarising beam splitter, and this light path handover module switches this polarization adjustment module according to sequential difference;
In a very first time point, this polarization adjustment module is opened, the polarization direction of this first light beam and this second light beam exchanges, and is projected to this first projection lens forms one first imaging through this second polarising beam splitter light beam closed after light by this first exiting surface; And
In one second time point, this polarization adjustment module is closed, the polarization direction of this first light beam and this second light beam is constant, is projected to this second projection lens forms one second imaging through this second polarising beam splitter light beam closed after light by this second exiting surface.
3. 3 d display device as claimed in claim 2, wherein the polarization direction of this first light beam and this second light beam is different, and is respectively vertical polarization or horizontal polarization.
4. 3 d display device as claimed in claim 3, wherein the light beam of vertical polarization will be changed direction by reflecting by this first polarising beam splitter and this second polarising beam splitter, the light beam of horizontal polarization by this first polarising beam splitter and this second polarising beam splitter by straight-line pass.
5. 3 d display device as claimed in claim 2, wherein this light path handover module also comprises:
One first reflecting prism, the dual-side of this first reflecting prism is respectively adjacent to a side of this first polarising beam splitter and a side of this second polarising beam splitter; And
One second reflecting prism, the dual-side of this second reflecting prism is respectively adjacent to another side of this first polarising beam splitter and another side of this second polarising beam splitter.
6. 3 d display device as claimed in claim 2, wherein this polarization adjustment module comprises a liquid crystal layer of changeable on off state, a ferroelectric formula liquid crystal layer, faraday's plate turn device, a Bo Keersi box photomodulator or a Kerr cell photomodulator.
7. 3 d display device as claimed in claim 1, wherein said multiple projection lens comprises one first projection lens, one second projection lens and one the 3rd projection lens, and this light path handover module comprises:
One first polarising beam splitter, it has an incidence surface, and this signal of video signal enters this first polarising beam splitter by this incidence surface;
One second polarising beam splitter;
One the 3rd polarising beam splitter, it has one the 3rd exiting surface; And
One the 4th polarising beam splitter, it has one first different exiting surface and one second exiting surface;
Wherein, this polarization adjustment module comprises:
One first polarization regulon, is arranged on the light path between this first polarising beam splitter and the 3rd polarising beam splitter;
One second polarization regulon, is arranged on the light path between this first polarising beam splitter and this second polarising beam splitter;
One the 3rd polarization regulon, is arranged on the light path between the 3rd polarising beam splitter and the 4th polarising beam splitter;
One the 4th polarization regulon, is arranged on the light path between this second polarising beam splitter and the 4th polarising beam splitter; And
One the 5th polarization regulon, be arranged on the light path between this second polarising beam splitter and the 3rd polarising beam splitter, wherein the 5th polarization regulon is fixed on opening;
Wherein, in a very first time point, this the first polarization regulon is opened, this second polarization regulon cuts out, the 3rd polarization regulon cuts out and the 4th polarization regulon is opened, and this signal of video signal is projected to this first projection lens by this first exiting surface and forms one first imaging by this light path handover module;
In one second time point, this the first polarization regulon is opened, this second polarization regulon cuts out, the 3rd polarization regulon is opened and the 4th polarization regulon cuts out, and this signal of video signal is projected to this second projection lens by this second exiting surface and forms one second imaging by this light path handover module; And
In one the 3rd time point, this first polarization regulon cuts out, and this second polarization regulon is opened, and this signal of video signal is projected to the 3rd projection lens by the 3rd exiting surface and forms one the 3rd imaging by this light path handover module.
8. 3 d display device as claimed in claim 7, wherein in this polarization adjustment module, this first polarization regulon, this second polarization regulon, the 3rd polarization regulon and the 4th polarization regulon comprise a liquid crystal layer of changeable on off state respectively, a ferroelectric formula liquid crystal layer, faraday's plate turn device, a Bo Keersi box photomodulator or a Kerr cell photomodulator.
9. 3 d display device as claimed in claim 7, wherein in this polarization adjustment module, the 5th polarization regulon comprises half wavelength phases delayer.
10. 3 d display device as claimed in claim 7, wherein this light path handover module also comprises:
One first reflecting prism, the dual-side of this first reflecting prism is respectively adjacent to a side of this first polarising beam splitter and a side of the 3rd polarising beam splitter; And
One second reflecting prism, the dual-side of this second reflecting prism is respectively adjacent to a side of this second polarising beam splitter and a side of the 4th polarising beam splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424141.2A CN103163651B (en) | 2011-12-16 | 2011-12-16 | 3 d display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110424141.2A CN103163651B (en) | 2011-12-16 | 2011-12-16 | 3 d display device |
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| CN105824182B (en) * | 2015-01-06 | 2018-08-14 | 台达电子工业股份有限公司 | It polarizes projection arrangement and applies its polarization optical projection system |
| CN105425428A (en) * | 2016-01-04 | 2016-03-23 | 京东方科技集团股份有限公司 | Array substrate and magneto-optical switch display |
| CN115437159A (en) * | 2021-06-02 | 2022-12-06 | 华为技术有限公司 | Optical system, lighting system and display system |
| CN113608399B (en) * | 2021-09-15 | 2022-10-11 | 深圳市乐华数码科技有限公司 | Conference room is with multimedia projector of convenient demonstration |
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| CN1392437A (en) * | 2001-06-16 | 2003-01-22 | 亚特科研公司 | Projection device and method for stereo three dimension display device and two-dimension display device |
| CN1943230A (en) * | 2004-04-19 | 2007-04-04 | 索尼德国有限责任公司 | Projector arrangement |
| CN101470275A (en) * | 2007-12-26 | 2009-07-01 | 台达电子工业股份有限公司 | Light source switching mechanism used for projection system |
| CN101675383A (en) * | 2007-04-25 | 2010-03-17 | 汤姆森特许公司 | High resolution 3d projection system |
| US7686455B2 (en) * | 2007-11-07 | 2010-03-30 | Victor Company Of Japan, Limited | Optical system and projection display device |
| CN101688940A (en) * | 2007-05-09 | 2010-03-31 | 瑞尔·D公司 | Polarization conversion system and method for stereoscopic projection |
| CN101782715A (en) * | 2009-01-16 | 2010-07-21 | 索尼公司 | Projection image display apparatus and projection optical system |
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| US8696133B2 (en) * | 2009-09-11 | 2014-04-15 | Konica Minolta Opto, Inc. | Projection optical system and image projecting device |
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| CN1392437A (en) * | 2001-06-16 | 2003-01-22 | 亚特科研公司 | Projection device and method for stereo three dimension display device and two-dimension display device |
| CN1943230A (en) * | 2004-04-19 | 2007-04-04 | 索尼德国有限责任公司 | Projector arrangement |
| CN101675383A (en) * | 2007-04-25 | 2010-03-17 | 汤姆森特许公司 | High resolution 3d projection system |
| CN101688940A (en) * | 2007-05-09 | 2010-03-31 | 瑞尔·D公司 | Polarization conversion system and method for stereoscopic projection |
| US7686455B2 (en) * | 2007-11-07 | 2010-03-30 | Victor Company Of Japan, Limited | Optical system and projection display device |
| CN101470275A (en) * | 2007-12-26 | 2009-07-01 | 台达电子工业股份有限公司 | Light source switching mechanism used for projection system |
| CN101782715A (en) * | 2009-01-16 | 2010-07-21 | 索尼公司 | Projection image display apparatus and projection optical system |
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