CN102591128B - Projector and stereo image system - Google Patents
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- CN102591128B CN102591128B CN201110078902.3A CN201110078902A CN102591128B CN 102591128 B CN102591128 B CN 102591128B CN 201110078902 A CN201110078902 A CN 201110078902A CN 102591128 B CN102591128 B CN 102591128B
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- 230000010287 polarization Effects 0.000 claims abstract description 234
- 239000011521 glass Substances 0.000 claims abstract description 33
- 230000008859 change Effects 0.000 claims abstract description 19
- 230000005684 electric field Effects 0.000 claims description 114
- 239000004973 liquid crystal related substance Substances 0.000 claims description 74
- 238000003384 imaging method Methods 0.000 claims description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 16
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 16
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims description 12
- 230000008447 perception Effects 0.000 abstract description 7
- 230000000007 visual effect Effects 0.000 abstract description 7
- 210000005036 nerve Anatomy 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000011514 reflex Effects 0.000 description 6
- 238000005266 casting Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001883 metal evaporation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses a projector and stereo image system, which is applied in the projection technical field. The projector applies the polarizing filter to produce alternate image signal lights according to scheduled time such as 120 frames per minute, each image frame alternates in order, then a projection lens converts the polarized image signal lights into new polarized image signal lights with parallel vibration direction and constant polarization frequency, and the vibration direction of the mew polarized image signal lights does not change while the mew polarized image signal lights are reflected to the polarizing glasses through a projection screen, an observer can only observe corresponding image through a left lens, a right lens of the polarizing glasses, namely, the observer receives a left eye frame, then a right eye frame, another left eye frame and another right eye frame through the polarizing glasses, so that stereoscopic perception is produced in the visual nerve system, stereoscopic image appreciation is achieved, and stereoscopic image appreciation is achieved through one projector.
Description
Technical field
The present invention relates to shadow casting technique field, relate in particular to a kind of projector, stereo image system.
Background technology
Projector be a kind of for projects images signal light the equipment to imaging on projection screen, existing projector comprises digital light processing type (DLP) projector, liquid crystal on silicon type (LCOS) projector, liquid crystal type (LCD) projector.
Referring to Fig. 1, is the schematic diagram of existing projector, and this projector 100 comprises:
Image signal processing equipment 101, for synthetic image signal light;
Referring to Fig. 2, is the schematic diagram of the embodiment of existing digital light processing type projector, and this digital light processing type projector 200 comprises: digital light is processed type image signal treatment facility 201, projection lens 202;
Digital light is processed type image signal treatment facility 201, for synthetic image signal light, comprising:
Digital micro-mirror device 2013, be arranged on the bang path of the light that light source 2011 provides, comprise multiple micro mirror (not shown)s, the state that each micro mirror can present comprises ON state, OFF state, present the micro mirror of OFF state, for reflecting the light that relay lens 2012 projects, and make this light reflecting depart from projection lens 202, present the micro mirror of ON state, for reflecting light that relay lens 2012 projects to projection lens 202, this light that reflexes to projection lens 202 become image, generated picture signal light;
Referring to Fig. 3, is the schematic diagram of the embodiment of existing liquid crystal on silicon type projector, and this liquid crystal on silicon type projector 300 comprises: liquid crystal on silicon type image signal treatment facility 301, projection lens 302;
Liquid crystal on silicon type image signal treatment facility 301, for synthetic image signal light, comprising:
Refracting telescope 1, is arranged on the bang path of this ruddiness, for this ruddiness is refracted to liquid crystal on silicon imaging system 3015;
Refracting telescope 2 3014, is arranged on the bang path of this blue light, for this blue light is refracted to liquid crystal on silicon imaging system 3015;
Liquid crystal on silicon imaging system 3015, is arranged on the bang path of this ruddiness, green glow, blue light three coloured light, for this ruddiness, green glow, blue light three coloured light are closed to look, carries out image modulation and forms image, synthetic image signal light;
Referring to Fig. 4, is the schematic diagram of the embodiment of existing liquid crystal type projector, and this liquid crystal type projector 400 comprises: liquid crystal type image signal processing equipment 401, projection lens 402;
Liquid crystal type image signal processing equipment 401, for having generated picture signal light;
The design of Fig. 2 representative not forms only possibility method of digital light processing type projector, the design of Fig. 3 representative also not forms only possibility method of liquid crystal on silicon type projector, the design of Fig. 4 representative also not forms only possibility method of liquid crystal type projector, draws these figures and be only used to the object of example.
Stereoprojection realizes by polarisation of light principle, the existing scheme that realizes stereoprojection is to adopt the synchronous projects images of Liang Tai projector, by orthogonal the polarization direction of the polarizer before Liang Tai projector, allow produce two bundle polarized lights polarization direction also orthogonal, and polarized light when being projected to special projection screen and reflexing to again beholder position direction of polarized light can not change, beholder is by a polaroid glasses left side, right eye can only be seen corresponding polarized light image, thereby in visual system, produce stereo perception, reach the object of viewing and admiring stereopsis, prior art also cannot realize by a projector and reach the object of viewing and admiring stereopsis.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of projector, stereo image system.
The object of the present invention is to provide a kind of projector, comprising: image signal processing equipment, polagizing filter, projection lens;
Described image signal processing equipment, for synthetic image signal light;
Described polagizing filter, is arranged on the bang path of the picture signal light that described image signal processing equipment generates, and comprising: electric field selector switch, electric field provide device, the polarizer;
Described electric field selector switch, for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, in the time that described electric field selector switch selects the described polarizer that electric field is provided, provides electric field to the described polarizer;
The described polarizer, comprising: the first conductive layer, liquid crystal layer, the second conductive layer;
Described the first conductive layer, the picture signal light generating for seeing through described image signal processing equipment, obtains polarization image signal light one;
Described liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one predetermined angular, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one;
Described the second conductive layer, bonding with described liquid crystal layer, the polarization image signal light one, the polarization image signal light two that see through for seeing through described liquid crystal layer;
Described projection lens, be arranged on the bang path of polarization image signal light one that described in described polagizing filter, the polarizer sees through, polarization image signal light two, for projecting described polarization image signal light one, polarization image signal light two to imaging on projection screen.
The object of the invention is to also provides a kind of stereo image system, comprising: projector, projection screen, polaroid glasses;
Described projector comprises: image signal processing equipment, polagizing filter, projection lens;
Described image signal processing equipment, for synthetic image signal light;
Described polagizing filter, is arranged on the bang path of the picture signal light that described image signal processing equipment generates, and comprising: electric field selector switch, electric field provide device, the polarizer;
Described electric field selector switch, for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, in the time that described electric field selector switch selects the described polarizer that electric field is provided, provides electric field to the described polarizer;
The described polarizer, comprising: the first conductive layer, liquid crystal layer, the second conductive layer;
Described the first conductive layer, the picture signal light generating for seeing through described image signal processing equipment, obtains polarization image signal light one;
Described liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one predetermined angular, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one;
Described the second conductive layer, bonding with described liquid crystal layer, the polarization image signal light one, the polarization image signal light two that see through for seeing through described liquid crystal layer;
Described projection lens, be arranged on the bang path of polarization image signal light one that described in described polagizing filter, the polarizer sees through, polarization image signal light two, for seeing through described polarization image signal light one, change the described polarization image signal light one seeing through into polarization image signal light three, and project described polarization image signal light three to imaging on described projection screen; See through described polarization image signal light two, change the described polarization image signal light two seeing through into polarization image signal light four, and project described polarization image signal light four to imaging on described projection screen; The direction of vibration of described polarization image signal light three parallels with the direction of vibration of polarization image signal light one, and the direction of vibration of described polarization image signal light four parallels with the direction of vibration of polarization image signal light two;
Described projection screen, is arranged on the bang path of polarization image signal light three that described in described projector, projection lens projects, polarization image signal light four, for reflecting described polarization image signal light three, obtains polarization image signal light five; Be used for reflecting described polarization image signal light four, obtain polarization image signal light six; The direction of vibration of the described polarization image signal light five obtaining parallels with the direction of vibration of polarization image signal light three, described in the direction of vibration of the polarization image signal light six that obtains parallel with the direction of vibration of polarization image signal light four;
Described polaroid glasses, are arranged on the bang path of the polarization image signal light five that obtains after the reflection of described projection screen, polarization image signal light six, comprising: left eyeglass, right eyeglass, frame;
Described left eyeglass, is arranged on described frame, comprises polarized lenses one, and polar orientation parallels with the direction of vibration of described polarization image signal light five, for seeing through the light that parallels direction with polar orientation;
Described right eyeglass, is arranged on described frame, comprises polarized lenses two, and polar orientation parallels with the direction of vibration of described polarization image signal light six, for seeing through the light that parallels direction with polar orientation;
The polar orientation irrelevancy of the polar orientation of described polarized lenses one and polarized lenses two is capable.
Projector applications polagizing filter of the present invention produces the polarization image signal light that the frequency as 120 frames per second replaces on schedule, each picture frame replaces in order, then projection lens converts this polarization image signal light to direction of vibration parallels and polarization frequency is constant new polarization image signal light, and the direction of vibration of this new polarization image signal light light in the time that projection screen reflexes to polaroid glasses can not change, beholder is by the left eyeglass of polaroid glasses, right eyeglass can only be seen corresponding image, be that beholder receives a left-eye frame by polaroid glasses, next a right eye frame, then another left-eye frame, next another right eye frame, thereby in visual system, produce stereo perception, reach the object of viewing and admiring stereopsis, thereby reach to realize and reach the object of viewing and admiring stereopsis by a projector.
Stereo image system of the present invention is applied projector on schedule as the frequency of 120 frames per second produces polarization image signal light alternately, each picture frame replaces in order, and the direction of vibration of the polarization image signal light light in the time that projection screen reflexes to polaroid glasses replacing of this generation can not change, beholder is by the left eyeglass of polaroid glasses, right eyeglass can only be seen corresponding image, be that beholder receives a left-eye frame by polaroid glasses, next a right eye frame, then another left-eye frame, next another right eye frame, thereby in visual system, produce stereo perception, reach the object of viewing and admiring stereopsis, thereby reach to realize and reach the object of viewing and admiring stereopsis by a projector.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing projector;
Fig. 2 is the schematic diagram of the embodiment of existing digital light processing type projector;
Fig. 3 is the schematic diagram of the embodiment of existing liquid crystal on silicon type projector;
Fig. 4 is the schematic diagram of the embodiment of existing liquid crystal type projector;
Fig. 5 is the schematic diagram of projector of the present invention;
Fig. 6 is the schematic diagram of stereo image system of the present invention.
Embodiment
The invention provides a kind of projector, stereo image system, be applied to shadow casting technique field, projector applications polagizing filter of the present invention produces the polarization image signal light that the frequency as 120 frames per second replaces on schedule, each picture frame replaces in order, then projection lens converts this polarization image signal light to direction of vibration parallels and polarization frequency is constant new polarization image signal light, and the direction of vibration of this new polarization image signal light light in the time that projection screen reflexes to polaroid glasses can not change, beholder is by the left eyeglass of polaroid glasses, right eyeglass can only be seen corresponding image, be that beholder receives a left-eye frame by polaroid glasses, next a right eye frame, then another left-eye frame, next another right eye frame, thereby in visual system, produce stereo perception, reach the object of viewing and admiring stereopsis, thereby reach to realize and reach the object of viewing and admiring stereopsis by a projector.
In order to make object of the present invention, technical scheme and advantage clearer, 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, is not intended to limit the present invention.
The invention provides a kind of projector.
Referring to Fig. 5, is the schematic diagram of projector of the present invention, and this projector 500 comprises: image signal processing equipment 501, polagizing filter 502, projection lens 503;
Image signal processing equipment 501, for synthetic image signal light;
Electric field selector switch 5021, for selecting the schedule time, provides electric field to the polarizer 5023;
Electric field provides device 5022, when selecting the polarizer 5023 that electric field is provided at electric field selector switch 5021, provides electric field to the polarizer 5023;
The polarizer 5023, comprising: the first conductive layer 50231, liquid crystal layer 50232, the second conductive layer 50233;
The first conductive layer 50231, the picture signal light generating for seeing through image signal processing equipment 501, obtains linearly polarized light one, obtains polarization image signal light one;
The second conductive layer 50233, bonding with liquid crystal layer 50232, the polarization image signal light one, the polarization image signal light two that see through for seeing through liquid crystal layer 50232;
Wherein, electric field selector switch 5021 is selected the schedule time, provides the process of electric field to comprise to the polarizer 5023:
When electric field selector switch 5021 is chosen in N/120 second, provide electric field to the polarizer 5023, N wherein comprises odd number, even number.
Wherein, the first conductive layer 50231 comprises tin indium oxide (ITO) electro-conductive glass, and the picture signal light generating for seeing through image signal processing equipment 501, obtains polarization image signal light one.
Wherein, the second conductive layer 50233 comprises tin indium oxide ITO electro-conductive glass, bonding with liquid crystal layer 50232, the polarization image signal light one, the polarization image signal light two that see through for seeing through liquid crystal layer 50232.
Wherein, liquid crystal layer 50232 comprises twisted-nematic (TN) type liquid crystal layer, bonding with the first conductive layer 50231, for in the time that the first conductive layer 50231, the second conductive layer 50233 do not add electric field, rotate this polarization image signal light one 90 degree, obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; In the time that electric field provides device 5022 that electric field is provided to the first conductive layer 50231, the second conductive layer 50233, see through this polarization image signal light one.
Wherein, liquid crystal layer 50232 comprises super twisted nematic (STN) type liquid crystal layer, bonding with the first conductive layer 50231, for in the time that the first conductive layer 50231, the second conductive layer 50233 do not add electric field, rotate this polarization image signal light one 270 degree, obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; In the time that electric field provides device 5022 that electric field is provided to the first conductive layer 50231, the second conductive layer 50233, see through this polarization image signal light one.
Wherein, electric field selector switch 5021 comprises power supply gate, for selecting the schedule time, provides electric field to the polarizer 5023.
Wherein, electric field provides device 5022 to comprise power supply, when selecting the polarizer 5023 that electric field is provided at electric field selector switch 5021, provides electric field to the polarizer 5023.
Wherein, image signal processing equipment 501 comprises: liquid crystal on silicon type image signal treatment facility, for synthetic image signal light; Or liquid crystal type image signal processing equipment, for synthetic image signal light; Or digital light processing type image signal treatment facility, for synthetic image signal light; Or display device, for synthetic image signal light, this display device comprises TV, computer, projector, navigating instrument, mobile phone, camera.
Wherein, the polarization frequency of polagizing filter 502 can be identical with the broadcasting frequency of program source.
Wherein, polagizing filter 502 can be synchronizeed with the picture signal light that image signal processing equipment 501 is generated as the polarization image signal light replacing that frequency produced of 120 frames per second on schedule, and the corresponding each picture frame of this polarization image signal light replaces in order.
Projector 500 of the present invention applies the polarization image signal light that polagizing filter 502 produces on schedule as the frequency of 120 frames per second replaces, each picture frame replaces in order, then projection lens 503 converts this polarization image signal light to direction of vibration parallels and polarization frequency is constant new polarization image signal light, and the direction of vibration of this new polarization image signal light light in the time that projection screen reflexes to polaroid glasses can not change, beholder is by the left eyeglass of polaroid glasses, right eyeglass can only be seen corresponding image, be that beholder receives a left-eye frame by polaroid glasses, next a right eye frame, then another left-eye frame, next another right eye frame, thereby in visual system, produce stereo perception, reach the object of viewing and admiring stereopsis, thereby reach to realize and reach the object of viewing and admiring stereopsis by a projector.
The present invention also provides a kind of stereo image system.
Referring to Fig. 6, is the schematic diagram of stereo image system of the present invention, and this stereo image system 600 comprises: projector 601, projection screen 602, polaroid glasses 603;
Image signal processing equipment 6011, for synthetic image signal light;
Electric field selector switch 60121, for selecting the schedule time, provides electric field to the polarizer 60123;
Electric field provides device 60122, when selecting the polarizer 60123 that electric field is provided at electric field selector switch 60121, provides electric field to the polarizer 60123;
The polarizer 60123, comprising: the first conductive layer 601231, liquid crystal layer 601232, the second conductive layer 601233;
The first conductive layer 601231, the picture signal light generating for seeing through image signal processing equipment 6011, obtains linearly polarized light one, obtains polarization image signal light one;
The second conductive layer 601233, bonding with liquid crystal layer 601232, the polarization image signal light one, the polarization image signal light two that see through for seeing through liquid crystal layer 601232;
Wherein, the polar orientation irrelevancy of the polar orientation of polarized lenses one and polarized lenses two is capable.
Wherein, electric field selector switch 60121 is selected the schedule time, provides the process of electric field to comprise to the polarizer 60123:
When electric field selector switch 60121 is chosen in N/120 second, provide electric field to the polarizer 60123, N wherein comprises odd number, even number.
Wherein, the first conductive layer 601231 comprises tin indium oxide ITO electro-conductive glass, and the picture signal light generating for seeing through image signal processing equipment 6011, obtains polarization image signal light one.
Wherein, the second conductive layer 601233 comprises tin indium oxide ITO electro-conductive glass, bonding with liquid crystal layer 601232, the polarization image signal light one, the polarization image signal light two that see through for seeing through liquid crystal layer 601232.
Wherein, liquid crystal layer 601232 comprises twisted-nematic TN type liquid crystal layer, bonding with the first conductive layer 601231, for in the time that the first conductive layer 601231, the second conductive layer 601233 do not add electric field, rotate this polarization image signal light one 90 degree, obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; In the time that electric field provides device 60122 that electric field is provided to the first conductive layer 601231, the second conductive layer 601233, see through this polarization image signal light one.
Wherein, liquid crystal layer 601232 comprises super twisted nematic STN type liquid crystal layer, bonding with the first conductive layer 601231, for in the time that the first conductive layer 601231, the second conductive layer 601233 do not add electric field, rotate this polarization image signal light one 270 degree, obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; In the time that electric field provides device 60122 that electric field is provided to the first conductive layer 601231, the second conductive layer 601233, see through this polarization image signal light one.
Wherein, electric field selector switch 60121 comprises power supply gate, for selecting the schedule time, provides electric field to the polarizer 60123.
Wherein, electric field provides device 60122 to comprise power supply, when selecting the polarizer 60123 that electric field is provided at electric field selector switch 60121, provides electric field to the polarizer 60123.
Wherein, image signal processing equipment 6011 comprises: liquid crystal on silicon type image signal treatment facility, for synthetic image signal light; Or liquid crystal type image signal processing equipment, for synthetic image signal light; Or digital light processing type image signal treatment facility, for synthetic image signal light; Or display device, for synthetic image signal light, this display device comprises TV, computer, projector, navigating instrument, mobile phone, camera.
Wherein, the polarization frequency of polagizing filter 6012 can be identical with the broadcasting frequency of program source.
Wherein, polagizing filter 6012 can be synchronizeed with the picture signal light that image signal processing equipment 6011 is generated as the polarization image signal light replacing that frequency produced of 120 frames per second on schedule, and the corresponding each picture frame of this polarization image signal light replaces in order.
Stereo image system 600 of the present invention is applied projector 601 on schedule as the frequency of 120 frames per second produces polarization image signal light alternately, each picture frame replaces in order, and the direction of vibration of the polarization image signal light light in the time that projection screen 602 reflexes to polaroid glasses 603 replacing of this generation can not change, beholder is by the left eyeglass 6031 of polaroid glasses 603, right eyeglass 6032 can only be seen corresponding image, be that beholder receives a left-eye frame by polaroid glasses 603, next a right eye frame, then another left-eye frame, next another right eye frame, thereby in visual system, produce stereo perception, reach the object of viewing and admiring stereopsis, thereby reach to realize and reach the object of viewing and admiring stereopsis by a projector.
For projector of the present invention, stereo image system, the form of realization is diversified.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a projector, is characterized in that, comprising: image signal processing equipment, polagizing filter, projection lens;
Described image signal processing equipment, for synthetic image signal light;
Described polagizing filter, is arranged on the bang path of the picture signal light that described image signal processing equipment generates, and comprising: electric field selector switch, electric field provide device, the polarizer;
Described electric field selector switch, for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, in the time that described electric field selector switch selects the described polarizer that electric field is provided, provides electric field to the described polarizer;
The described polarizer, comprising: the first conductive layer, liquid crystal layer, the second conductive layer;
Described the first conductive layer, the picture signal light generating for seeing through described image signal processing equipment, obtains polarization image signal light one;
Described liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one predetermined angular, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one;
Described the second conductive layer, bonding with described liquid crystal layer, the polarization image signal light one, the polarization image signal light two that see through for seeing through described liquid crystal layer;
Described projection lens, be arranged on the bang path of polarization image signal light one that described in described polagizing filter, the polarizer sees through, polarization image signal light two, for projecting described polarization image signal light one, polarization image signal light two to imaging on projection screen;
Wherein, described liquid crystal layer, comprising:
Twisted-nematic TN type liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one 90 degree, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one; Or
Super twisted nematic STN type liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one 270 degree, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one.
2. projector as claimed in claim 1, is characterized in that, described the first conductive layer comprises tin indium oxide ITO electro-conductive glass, and the picture signal light generating for seeing through described image signal processing equipment, obtains polarization image signal light one;
Described the second conductive layer comprises tin indium oxide ITO electro-conductive glass, bonding with described liquid crystal layer, the polarization image signal light one, the polarization image signal light two that see through for seeing through described liquid crystal layer.
3. projector as claimed in claim 1, is characterized in that, when described electric field selector switch is chosen in N/120 second, provides electric field to the described polarizer, and described N comprises odd number, even number.
4. the projector as described in claim 1 or 3, is characterized in that, described image signal processing equipment, comprising: liquid crystal on silicon type image signal treatment facility, for synthetic image signal light; Or liquid crystal type image signal processing equipment, for synthetic image signal light; Or digital light processing type image signal treatment facility, for synthetic image signal light; Or display device, for synthetic image signal light, described display device comprises TV, computer, projector, navigating instrument, mobile phone, camera.
5. a stereo image system, is characterized in that, comprising: projector, projection screen, polaroid glasses;
Described projector comprises: image signal processing equipment, polagizing filter, projection lens;
Described image signal processing equipment, for synthetic image signal light;
Described polagizing filter, is arranged on the bang path of the picture signal light that described image signal processing equipment generates, and comprising: electric field selector switch, electric field provide device, the polarizer;
Described electric field selector switch, for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, in the time that described electric field selector switch selects the described polarizer that electric field is provided, provides electric field to the described polarizer;
The described polarizer, comprising: the first conductive layer, liquid crystal layer, the second conductive layer;
Described the first conductive layer, the picture signal light generating for seeing through described image signal processing equipment, obtains polarization image signal light one;
Described liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one predetermined angular, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one;
Described the second conductive layer, bonding with described liquid crystal layer, the polarization image signal light one, the polarization image signal light two that see through for seeing through described liquid crystal layer;
Described projection lens, be arranged on the bang path of polarization image signal light one that described in described polagizing filter, the polarizer sees through, polarization image signal light two, for seeing through described polarization image signal light one, change the described polarization image signal light one seeing through into polarization image signal light three, and project described polarization image signal light three to imaging on described projection screen; See through described polarization image signal light two, change the described polarization image signal light two seeing through into polarization image signal light four, and project described polarization image signal light four to imaging on described projection screen; The direction of vibration of described polarization image signal light three parallels with the direction of vibration of polarization image signal light one, and the direction of vibration of described polarization image signal light four parallels with the direction of vibration of polarization image signal light two;
Described projection screen, is arranged on the bang path of polarization image signal light three that described in described projector, projection lens projects, polarization image signal light four, for reflecting described polarization image signal light three, obtains polarization image signal light five; Be used for reflecting described polarization image signal light four, obtain polarization image signal light six; The direction of vibration of the described polarization image signal light five obtaining parallels with the direction of vibration of polarization image signal light three, described in the direction of vibration of the polarization image signal light six that obtains parallel with the direction of vibration of polarization image signal light four;
Described polaroid glasses, are arranged on the bang path of the polarization image signal light five that obtains after the reflection of described projection screen, polarization image signal light six, comprising: left eyeglass, right eyeglass, frame;
Described left eyeglass, is arranged on described frame, comprises polarized lenses one, and polar orientation parallels with the direction of vibration of described polarization image signal light five, for seeing through the light that parallels direction with polar orientation;
Described right eyeglass, is arranged on described frame, comprises polarized lenses two, and polar orientation parallels with the direction of vibration of described polarization image signal light six, for seeing through the light that parallels direction with polar orientation;
The polar orientation irrelevancy of the polar orientation of described polarized lenses one and polarized lenses two is capable;
Wherein, described liquid crystal layer, comprising:
Twisted-nematic TN type liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one 90 degree, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one; Or
Super twisted nematic STN type liquid crystal layer, bonding with described the first conductive layer, for in the time that described the first conductive layer, described the second conductive layer do not add electric field, rotate described polarization image signal light one 270 degree, obtain polarization image signal light two, and see through the described polarization image signal light two obtaining after rotation; In the time that described electric field provides device that electric field is provided to described the first conductive layer, described the second conductive layer, see through described polarization image signal light one.
6. stereo image system as claimed in claim 5, is characterized in that, described the first conductive layer comprises tin indium oxide ITO electro-conductive glass, and the picture signal light generating for seeing through described image signal processing equipment, obtains polarization image signal light one;
Described the second conductive layer comprises tin indium oxide ITO electro-conductive glass, bonding with described liquid crystal layer, the polarization image signal light one, the polarization image signal light two that see through for seeing through described liquid crystal layer.
7. stereo image system as claimed in claim 5, is characterized in that, when described electric field selector switch is chosen in N/120 second, provides electric field to the described polarizer, and described N comprises odd number, even number.
8. the stereo image system as described in claim 5 or 7, is characterized in that, described image signal processing equipment, comprising: liquid crystal on silicon type image signal treatment facility, for synthetic image signal light; Or liquid crystal type image signal processing equipment, for synthetic image signal light; Or digital light processing type image signal treatment facility, for synthetic image signal light; Or display device, for synthetic image signal light, described display device comprises TV, computer, projector, navigating instrument, mobile phone, camera.
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