CN102692809B - 3D (three dimensional) display system - Google Patents
3D (three dimensional) display system Download PDFInfo
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- CN102692809B CN102692809B CN201210146652.7A CN201210146652A CN102692809B CN 102692809 B CN102692809 B CN 102692809B CN 201210146652 A CN201210146652 A CN 201210146652A CN 102692809 B CN102692809 B CN 102692809B
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- 230000010287 polarization Effects 0.000 claims abstract description 61
- 201000005111 ocular hyperemia Diseases 0.000 claims abstract description 20
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims description 30
- 239000011521 glass Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
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Abstract
The invention provides a 3D (three dimensional) display system, and is applicable to the technical field of display. The system comprises a signal decomposition unit, first projection display equipment, second projection display equipment and a polarization adjustor. 3D video signals are divided into six channels of left-eye and right-eye red, green and blue signals, left-eye red light, left-eye blue light and right-eye green light are used as a channel of light signals to be outputted, right-eye red light, right-eye blue light and left-eye green light are used as another channel of light signals to be outputted, the polarization character of the red light, the green light and the blue light which are recombined after being divided is used for adjusting the polarization state of one or two channels of light signals, so that the polarization state of a left-eye image signal projected to a screen is different from that of a right-eye image signal, 3D display can be realized without a polarizer, because light energy cannot be lost after the polarization states of the light signals are adjusted, the light energy utilization rate of the 3D display system is greatly improved, the structure of the 3D display system is simplified, and cost is greatly reduced.
Description
Technical field
The invention belongs to display technique field, particularly relate to a kind of 3D display system.
Background technology
At present, projection display technique has LCD, DLP and LCOS tri-kinds.LCD and the LCOS efficiency of one-board is generally low, in order to improve optical efficiency, 3 board-like LCD and 3 board-like LCOS generally adopt the conjunction look technology of SPS, at the opticator that projector exports, substantially all need to add two Polarizer, final light efficiency is less than 1/4 of common projection, and utilization ratio is very low.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of 3D display system, is intended to solve the low problem of the existing 3D display system efficiency of light energy utilization.
The embodiment of the present invention is achieved in that a kind of 3D display system, comprising:
Signal decomposition unit, for left-eye image signal decomposition being become left eye red signal light R1, left eye green optical signal G1 and left eye blue light signals B1, eye image signal decomposition becomes right eye red signal light R2, right eye green optical signal G2 and right eye blue light signals B2;
First projection display apparatus, for being projected to screen by described left eye red signal light R1, right eye green optical signal G2 and left eye blue light signals B1;
Second projection display apparatus, for being projected to screen by described right eye red signal light R2, left eye green optical signal G1 and right eye blue light signals B2; And
Polarization adjuster, for adjusting from described first projection display apparatus or/and the polarization state of the second projection display apparatus emergent light signal, makes the polarization state of the left-eye image signal being projected to described screen be different from the polarization state of eye image signal.
3D vision signal is first resolved into a left side by the embodiment of the present invention, right eye is red, green, blue six road signals, then by the ruddiness of left eye, the green glow of blue light and right eye exports as a road light signal, by the ruddiness of right eye, the green glow of blue light and left eye exports as another road light signal, then utilize after decomposing and reconfiguring red, green, the polarization characteristic of blue three color light self adjusts the polarization state of wherein a road or two ways of optical signals, the polarization state of the left-eye image signal being projected to screen is made to be different from the polarization state of eye image signal, 3D display can be realized without the need to additional Polarizer, because the polarization state adjusting light signal can not cause optical energy loss, the efficiency of light energy utilization of this 3D display system is made to obtain significant increase, simplify the structure of this 3D display system simultaneously, significantly reduce costs.This 3D display system can be used for 3LCD and 3LCOS that SPS closes look technology especially.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the 3D display system that the embodiment of the present invention provides;
Fig. 2 is the structural drawing of the opticator of the first projection display apparatus that the embodiment of the present invention provides;
Fig. 3 is the structural drawing of the opticator of the second projection display apparatus that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
3D vision signal is first resolved into a left side by the embodiment of the present invention, right eye is red, green, blue six road signals, then by the ruddiness of left eye, the green glow of blue light and right eye exports as a road light signal, by the ruddiness of right eye, the green glow of blue light and left eye exports as another road light signal, then utilize after decomposing and reconfiguring red, green, the polarization characteristic of blue three color light self adjusts the polarization state of wherein a road or two ways of optical signals, the polarization state of the left-eye image signal being projected to screen is made to be different from the polarization state of eye image signal, 3D display can be realized without the need to additional Polarizer, because the polarization state adjusting light signal can not cause optical energy loss, the efficiency of light energy utilization of this 3D display system is made to obtain significant increase, simplify the structure of this 3D display system simultaneously, significantly reduce costs.This 3D display system can be used for 3LCD and 3LCOS that SPS closes look technology especially.
Below in conjunction with specific embodiment, realization of the present invention is described in detail.
As shown in Figure 1, the 3D display system that the embodiment of the present invention provides is two-shipper superposition 3D display system, comprises signal decomposition unit 10, first projection display apparatus 11, second projection display apparatus 12 and polarization adjuster 13.Wherein, left-and right-eye images signal decomposition is become left eye red signal light R1, left eye green optical signal G1, left eye blue light signals B1 by described signal decomposition unit 10 respectively, right eye red signal light R2, right eye green optical signal G2, right eye blue light signals B2, described left-and right-eye images signal forms 3D vision signal.Left eye red signal light R1, right eye green optical signal G2 and left eye blue light signals B1 are projected to screen 14 by described first projection display apparatus 11; Right eye red signal light R2, left eye green optical signal G1 and right eye blue light signals B2 are projected to screen 14 by described second projection display apparatus 12.Described polarization adjuster 13, for adjusting from the first projection display apparatus 11 or/and the polarization state of the second projection display apparatus 12 emergent light signal, makes the polarization state of the left-eye image signal being projected to described screen 14 be different from the polarization state of eye image signal.It can thus be appreciated that, 3D vision signal is first resolved into a left side by the embodiment of the present invention, right eye is red, green, blue six road signals, then by the ruddiness of left eye, the green glow of blue light and right eye exports as a road light signal, by the ruddiness of right eye, the green glow of blue light and left eye exports as another road light signal, then decomposition is utilized to reconfigure rear red, green, the polarization characteristic of blue three color light adjusts the polarization state of wherein a road or two ways of optical signals, the polarization state of the left-eye image signal being projected to screen 14 is made to be different from the polarization state of eye image signal, 3D display can be realized without the need to additional Polarizer, because the polarization state adjusting light signal can not cause optical energy loss, the efficiency of light energy utilization of this 3D display system is made to obtain significant increase, simplify the structure of this 3D display system simultaneously, significantly reduce costs.Should be appreciated that the polarization characteristic of red, green, blue three coloured light is herein respectively S polarized light property, P polarized light property and the S polarized light property formed through liquid crystal board.
As preferably, the polarization state being projected to left-eye image signal each primary lights signal (being namely projected to left eye red signal light R1, left eye green optical signal G1 and the left eye blue light signals B1 of described screen 14) of described screen 14 in the embodiment of the present invention is consistent, as being all S polarisation or P polarisation.Similarly, the polarization state being projected to eye image signal each primary lights signal (being namely projected to right eye red signal light R2, right eye green optical signal G2 and the right eye blue light signals B2 of described screen 14) of described screen 14 is consistent, and be different from the polarization state of the left-eye image signal being projected to described screen 14, as being all P polarisation or S polarisation.
Usually, this 3D display system also comprises the polaroid glasses 15 with two eyeglasses, the polarization direction of one of them eyeglass is identical with the polarization state of the left-eye image signal being projected to described screen 14, and the polarization direction of another eyeglass is identical with the polarization state of the eye image signal being projected to described screen 14.Namely 3D effect can be seen by described polaroid glasses 15 at this.
The adjuster of polarization described in the embodiment of the present invention 13 is located between the color-combination prism of projection display apparatus and projection lens, or described polarization adjuster 13 is located at the light emission side of the projection lens of projection display apparatus.Wherein, described polarization adjuster 13 can be one or two.As shown in Figure 2,3, only between the color-combination prism 16 and projection lens 17 of described second display projector equipment 12, establish polarization adjuster 13, make this 3D display system architectures simpler like this.Certainly, also polarization adjuster can be established between the color-combination prism 21 of described first display projector equipment 12 and projection lens 22, or establishing polarization adjuster 13 in the light emission side of the projection lens 17 of the light emission side of the projection lens 22 of described first projection display apparatus or the second projection display apparatus, providing very big convenience for designing this 3D display system.
Above-mentioned polarization adjuster 13 is preferably the wave plate P polarisation of incidence and S polarisation being adjusted to respectively S polarisation and the output of P polarisation.For adjusting the polarization state of red, green, blue three coloured light simultaneously, described wave plate adopts wide band 1/2 wave plate 18 of light half-twist, originally can be that the red signal light R2 of S polarisation is adjusted to P polarisation like this by color-combination prism 16 outgoing from the second projection display apparatus 12, originally the green optical signal G1 being P polarisation is adjusted to S polarisation, the blue light signals B2 being originally S polarisation is adjusted to P polarisation.And be still S polarisation from the red signal light R1 of the first projection display apparatus 11 outgoing, green optical signal G2 is still P polarisation, and blue light signals B1 is still S polarisation.From the light signal of the first projection display apparatus 11 and the second projection display apparatus 12 outgoing be projected to screen 14 reconfigure time, left-eye image signal R1, G1, B1 are S polarisation, eye image signal R2, G2, B2 are P polarisation, namely the polarization state of left-eye image signal is different from the polarization state of eye image signal, and now spectators put on aforementioned polaroid glasses and can watch 3D rendering.
Export for ease of the green glow of the ruddiness of left eye, blue light and right eye being adjusted to a road light signal, the green glow of the ruddiness of right eye, blue light and left eye is adjusted to another road light signal to export, this 3D display system comprises the signal switch unit 19 described left eye green optical signal G1 and right eye green optical signal G2 being switched to respectively the second projection display apparatus 12 and the first projection display apparatus 11 further.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a 3D display system, is characterized in that, described 3D display system comprises:
Signal decomposition unit, for left-eye image signal decomposition being become left eye red signal light R1, left eye green optical signal G1 and left eye blue light signals B1, eye image signal decomposition becomes right eye red signal light R2, right eye green optical signal G2 and right eye blue light signals B2;
First projection display apparatus, for being projected to screen by described left eye red signal light R1, right eye green optical signal G2 and left eye blue light signals B1; Second projection display apparatus, for being projected to screen by described right eye red signal light R2, left eye green optical signal G1 and right eye blue light signals B2; And
Polarization adjuster, for adjusting the polarization state from described second projection display apparatus emergent light signal, makes the polarization state of the left-eye image signal being projected to described screen be different from the polarization state of eye image signal;
Described polarization adjuster is the wave plate P polarisation of incidence and S polarisation being adjusted to respectively S polarisation and the output of P polarisation; Described wave plate is wide band 1/2 wave plate;
The right eye green optical signal G2 of left eye red signal light R1, P polarisation of described first projection display apparatus input S polarisation and the left eye blue light signals B1 of S polarisation;
The left eye green optical signal G1 of right eye red signal light R2, P polarisation of described second projection display apparatus input S polarisation and the right eye blue light signals B2 of S polarisation; After the adjustment of described polarization adjuster, export the left eye green optical signal G1 of right eye red signal light R2, S polarisation and the right eye blue light signals B2 of P polarisation of P polarisation.
2. 3D display system as claimed in claim 1, it is characterized in that, the polarization state being projected to each primary lights signal of left-eye image signal of described screen is consistent, and the polarization state being projected to each primary lights signal of eye image signal of described screen is consistent.
3. 3D display system as claimed in claim 1 or 2, it is characterized in that, described 3D display system also comprises the polaroid glasses with two eyeglasses, the polarization direction of one of them eyeglass is identical with the polarization state of the left-eye image signal being projected to described screen, and the polarization direction of another eyeglass is identical with the polarization state of the eye image signal being projected to described screen.
4. 3D display system as claimed in claim 3, it is characterized in that, described polarization adjuster is located between the color-combination prism of projection display apparatus and projection lens, or described polarization adjuster is located at the light emission side of the projection lens of projection display apparatus.
5. 3D display system as claimed in claim 3, it is characterized in that, described 3D display system comprises the signal switch unit described left eye green optical signal G1 and right eye green optical signal G2 being switched to respectively the second projection display apparatus and the first projection display apparatus further.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210146652.7A CN102692809B (en) | 2012-05-14 | 2012-05-14 | 3D (three dimensional) display system |
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| CN201210146652.7A CN102692809B (en) | 2012-05-14 | 2012-05-14 | 3D (three dimensional) display system |
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| CN102692809A CN102692809A (en) | 2012-09-26 |
| CN102692809B true CN102692809B (en) | 2015-06-24 |
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| CN107561725A (en) * | 2016-12-07 | 2018-01-09 | 北京数科技有限公司 | Multiplexing apparatus and the mechanical-optical setup for laser three-dimensional projection |
| CN114495702B (en) * | 2020-10-27 | 2024-03-19 | 北京小米移动软件有限公司 | Elastic telescopic mechanism and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937133A (en) * | 2009-06-26 | 2011-01-05 | 松下电器产业株式会社 | projection display device |
| CN201740925U (en) * | 2010-06-02 | 2011-02-09 | 王勇竞 | System generating three-dimensional (3D) images |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5074645A (en) * | 1990-09-28 | 1991-12-24 | Honeywell Inc. | Full color three dimensional display system |
| JP3454651B2 (en) * | 1996-12-26 | 2003-10-06 | 三洋電機株式会社 | Liquid crystal shutter glasses for stereoscopic video display |
| CN101398536B (en) * | 2007-09-24 | 2011-05-04 | 鸿富锦精密工业（深圳）有限公司 | Stereo projection optical system |
| JP5332331B2 (en) * | 2008-06-17 | 2013-11-06 | ソニー株式会社 | Stereoscopic image projection device and adapter for stereoscopic image projection device |
| JP5332531B2 (en) * | 2008-11-18 | 2013-11-06 | ソニー株式会社 | Image display apparatus, image display method, and image display system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937133A (en) * | 2009-06-26 | 2011-01-05 | 松下电器产业株式会社 | projection display device |
| CN201740925U (en) * | 2010-06-02 | 2011-02-09 | 王勇竞 | System generating three-dimensional (3D) images |
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