CN102591127B - Projector and stereoscopic image system - Google Patents
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- CN102591127B CN102591127B CN201110070900XA CN201110070900A CN102591127B CN 102591127 B CN102591127 B CN 102591127B CN 201110070900X A CN201110070900X A CN 201110070900XA CN 201110070900 A CN201110070900 A CN 201110070900A CN 102591127 B CN102591127 B CN 102591127B
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- 230000010287 polarization Effects 0.000 claims abstract description 229
- 239000011521 glass Substances 0.000 claims abstract description 34
- 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 24
- 230000008859 change Effects 0.000 claims description 20
- 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
- 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
- 230000008447 perception Effects 0.000 description 6
- 230000011514 reflex Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 3
- 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
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Abstract
The invention discloses a projector and a stereoscopic image system, which are applied to the technical field of projection. The projector disclosed by the invention employs a polarizing filter to generate alternant polarization image signal light rays on scheduled time, such as at the frequency of 120 frames per second, wherein each image frame is alternant sequentially, then a projection lens transforms the polarization image signal light rays to new polarization image signal light having the parallel vibration direction and keeping the polarization frequency unchanged, and the new polarization image signal light rays keep light vibration direction unchanged when reflected to polarized glasses via a projection screen, so that a viewer can only see corresponding images through left and right glasses of the polarized glasses, that is, the viewer can receive one left eye frame, one right eye frame, one left eye frame and one right eye frame sequentially through the polarized glasses, furthermore, the stereoscopic feeling is generated in a visual nerve system, the purpose of enjoying a stereoscopic image is achieved, and the purpose of enjoying the stereoscopic image through one projector is achieved.
Description
Technical field
The present invention relates to the shadow casting technique field, relate in particular to a kind of projector, stereo image system.
Background technology
Projector is a kind of equipment for the imaging to the projection screen of projects images signal light, and existing projector comprises digital light processing type (DLP) projector, liquid crystal on silicon type (LCOS) projector, liquid crystal type (LCD) projector.
See also Fig. 1, be the synoptic diagram of existing projector, this projector 100 comprises:
Image signal processing equipment 101 is used for generating picture signal light;
See also Fig. 2, be the synoptic diagram of the embodiment of existing digital light processing type projector, this digital light processing type projector 200 comprises: digital light is handled type image signal treatment facility 201, projection lens 202;
Digital light is handled type image signal treatment facility 201, is used for generating picture signal light, comprising:
See also Fig. 3, be the synoptic diagram of the embodiment of existing liquid crystal on silicon type projector, 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 is used for generating picture signal light, comprising:
Refracting telescope 1 is arranged on the bang path of this ruddiness, is used 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, is used 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, is used for this ruddiness, green glow, blue light three coloured light are closed look, carries out image modulation and forms image, generates picture signal light;
See also Fig. 4, be the synoptic diagram of the embodiment of existing liquid crystal type projector, 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 is used for having generated picture signal light;
Projection lens 402 is arranged on the bang path of the picture signal light that liquid crystal type image signal processing equipment 401 generates, the picture signal light that is used for this generation of projection imaging to the projection screen.
The design of Fig. 2 representative is not the only possibility method that constitutes digital light processing type projector, the design of Fig. 3 representative is not the only possibility method that constitutes liquid crystal on silicon type projector yet, the design of Fig. 4 representative is not the only possibility method that constitutes liquid crystal type projector yet, and these figures that draw only are the purposes for example.
Stereoprojection realizes by the polarisation of light principle, the scheme of existing realization stereoprojection is to adopt two synchronous projects images of projector, the polarization direction of the polarizer before two projectors is orthogonal, make the polarization direction of the two bundle polarized lights that produce also orthogonal, and polarized light be projected to special-purpose projection screen when reflexing to the beholder position again direction of polarized light can not change, the 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 purpose of viewing and admiring stereopsis, prior art also can't realize reaching the purpose of viewing and admiring stereopsis by a projector.
Summary of the invention
The technical problem to be solved in the present invention provides 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 is used for generating picture 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 is used for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, and being used for provides electric field to the described polarizer when described electric field selector switch selection provides electric field to the described polarizer;
The described polarizer comprises: Polarizer, first conductive layer, liquid crystal layer, second conductive layer;
Described Polarizer is used for seeing through the light that parallels direction with polar orientation, sees through the picture signal light that described image signal processing equipment generates, and obtains polarization image signal light one;
Described first conductive layer, bonding with described Polarizer, be used for seeing through described polarization image signal light one;
Described liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate the light predetermined angular that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described second conductive layer, see through described polarization image signal light one;
Described second conductive layer, bonding with described liquid crystal layer, be used for seeing through polarization image signal light one, the polarization image signal light two that described liquid crystal layer sees through;
Described projection lens, be arranged on the bang path of the polarizer sees through described in the described polagizing filter polarization image signal light one, polarization image signal light two, be used for the imaging to the projection screen of the described polarization image signal light one of projection, polarization image signal light two.
The objective 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 is used for generating picture 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 is used for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, and being used for provides electric field to the described polarizer when described electric field selector switch selection provides electric field to the described polarizer;
The described polarizer comprises: Polarizer, first conductive layer, liquid crystal layer, second conductive layer;
Described Polarizer is used for seeing through the light that parallels direction with polar orientation, sees through the picture signal light that described image signal processing equipment generates, and obtains polarization image signal light one;
Described first conductive layer, bonding with described Polarizer, be used for seeing through described polarization image signal light one;
Described liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate the light predetermined angular that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described second conductive layer, see through described polarization image signal light one;
Described second conductive layer, bonding with described liquid crystal layer, be used for seeing through polarization image signal light one, the polarization image signal light two that described liquid crystal layer sees through;
Described projection lens, be arranged on the bang path of the polarizer sees through described in the described polagizing filter polarization image signal light one, polarization image signal light two, be used for changing described polarization image signal light one into polarization image signal light three, and throw the imaging to the described projection screen of described polarization image signal light three; Change described polarization image signal light two into polarization image signal light four, and throw the imaging to the described projection screen of described polarization image signal light four; 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 projection lens projects described in the described projector polarization image signal light three, polarization image signal light four, is used for the described polarization image signal light three of reflection, obtains polarization image signal light five; Be used for the described polarization image signal light four of reflection, obtain polarization image signal light six; The direction of vibration of the described polarization image signal light five that obtains parallels with the direction of vibration of polarization image signal light three, and the direction of vibration of the described polarization image signal light six that obtains parallels with the direction of vibration of polarization image signal light four;
Described polaroid glasses are arranged on the bang path of polarization image signal light five through obtaining after the reflection of described projection screen, polarization image signal light six, comprising: left eyeglass, right eyeglass, frame;
Described left eyeglass is arranged on the described frame, comprises polarized lenses one, and polar orientation parallels with the direction of vibration of polarization image signal light five, is used for seeing through the light that parallels direction with polar orientation;
Described right eyeglass is arranged on the described frame, comprises polarized lenses two, and polar orientation parallels with the direction of vibration of polarization image signal light six, is used 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 on schedule the polarization image signal light that the frequency as per second 120 frames replaces, each picture frame replaces in order, then projection lens converts this polarization image signal light to direction of vibration parallels and the polarization frequency is constant new polarization image signal light, and the direction of vibration of this new polarization image signal light light when projection screen reflexes to polaroid glasses can not change, the beholder is by polaroid glasses left side eyeglass, right eyeglass can only be seen corresponding image, be that the beholder receives a left-eye frame by polaroid glasses, next right eye frame, another left-eye frame then, next another right eye frame, thereby in visual system, produce stereo perception, reach the purpose of viewing and admiring stereopsis, reach the purpose of viewing and admiring stereopsis thereby reach realization by a projector.
Stereo image system of the present invention is used projector and is produced polarization image signal light alternately as the frequency of per second 120 frames on schedule, each picture frame replaces in order, and the direction of vibration of the polarization image signal light light when projection screen reflexes to polaroid glasses that replaces of this generation can not change, the beholder is by polaroid glasses left side eyeglass, right eyeglass can only be seen corresponding image, be that the beholder receives a left-eye frame by polaroid glasses, next right eye frame, another left-eye frame then, next another right eye frame, thereby in visual system, produce stereo perception, reach the purpose of viewing and admiring stereopsis, reach the purpose of viewing and admiring stereopsis thereby reach realization by a projector.
Description of drawings
Fig. 1 is the synoptic diagram of existing projector;
Fig. 2 is the synoptic diagram of the embodiment of existing digital light processing type projector;
Fig. 3 is the synoptic diagram of the embodiment of existing liquid crystal on silicon type projector;
Fig. 4 is the synoptic diagram of the embodiment of existing liquid crystal type projector;
Fig. 5 is the synoptic diagram of projector of the present invention;
Fig. 6 is the synoptic diagram of stereo image system of the present invention.
Embodiment
The invention provides a kind of projector, stereo image system, be applied to the shadow casting technique field, projector applications polagizing filter of the present invention produces on schedule the polarization image signal light that the frequency as per second 120 frames replaces, each picture frame replaces in order, then projection lens converts this polarization image signal light to direction of vibration parallels and the polarization frequency is constant new polarization image signal light, and the direction of vibration of this new polarization image signal light light when projection screen reflexes to polaroid glasses can not change, the beholder is by polaroid glasses left side eyeglass, right eyeglass can only be seen corresponding image, be that the beholder receives a left-eye frame by polaroid glasses, next right eye frame, another left-eye frame then, next another right eye frame, thereby in visual system, produce stereo perception, reach the purpose of viewing and admiring stereopsis, reach the purpose of viewing and admiring stereopsis thereby reach realization by a projector.
In order to make purpose 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 explaining the present invention, and be not used in restriction the present invention.
The invention provides a kind of projector.
See also Fig. 5, be the synoptic diagram of projector of the present invention, this projector 500 comprises: image signal processing equipment 501, polagizing filter 502, projection lens 503;
Image signal processing equipment 501 is used for generating picture signal light;
Electric field selector switch 5021 is used for selecting the schedule time, provides electric field to the polarizer 5023;
Electric field provides device 5022, and being used for provides electric field to the polarizer 5023 when 5021 selections of electric field selector switch provide electric field to the polarizer 5023;
The polarizer 5023 comprises: Polarizer 50231, first conductive layer 50232, liquid crystal layer 50233, second conductive layer 50234;
First conductive layer 50232, bonding with Polarizer 50231, be used for seeing through this polarization image signal light one;
Second conductive layer 50234, bonding with liquid crystal layer 50233, be used for seeing through polarization image signal light one, the polarization image signal light two that liquid crystal layer 50233 sees through;
Wherein, electric field selector switch 5021 is selected the schedule time, provides the process of electric field to comprise to the polarizer 5023:
Electric field selector switch 5021 is chosen in N/120 during second, provides electric field to the polarizer 5023, and N wherein comprises odd number, even number.
Wherein, first conductive layer 50232 comprises tin indium oxide (ITO) electro-conductive glass, and is bonding with Polarizer 50231, is used for seeing through this polarization image signal light one.
Wherein, second conductive layer 50234 comprises tin indium oxide ITO electro-conductive glass, and is bonding with liquid crystal layer 50233, is used for seeing through polarization image signal light one, the polarization image signal light two that liquid crystal layer 50233 sees through.
Wherein, liquid crystal layer 50233 comprises twisted-nematic (TN) type liquid crystal layer, bonding with first conductive layer 50232, be used at first conductive layer 50232, when second conductive layer 50234 does not add electric field, rotate light 90 degree that first conductive layer 50232 sees through, obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; When electric field provides device 5022 that electric field is provided to first conductive layer 50232, second conductive layer 50234, see through this polarization image signal light one.
Wherein, liquid crystal layer 50233 comprises super twisted nematic (STN) type liquid crystal layer, bonding with first conductive layer 50232, be used at first conductive layer 50232, when second conductive layer 50234 does not add electric field, rotate light 270 degree that first conductive layer 50232 sees through, obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; When electric field provides device 5022 that electric field is provided to first conductive layer 50232, second conductive layer 50234, see through this polarization image signal light one.
Wherein, electric field selector switch 5021 comprises the power supply gate, is used for selecting the schedule time, provides electric field to the polarizer 5023.
Wherein, electric field provides device 5022 to comprise power supply, and being used for provides electric field to the polarizer 5023 when 5021 selections of electric field selector switch provide electric field to the polarizer 5023.
Wherein, image signal processing equipment 501 comprises: digital light is handled the type image signal treatment facility, is used for generating picture signal light; Or liquid crystal on silicon type image signal treatment facility, be used for generating picture signal light; Or the liquid crystal type image signal processing equipment, be used for generating picture signal light; Or display device, being used for generating picture 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 broadcast frequency of program source.
Wherein, the polarization image signal light that replaces that polagizing filter 502 produces as the frequency of per second 120 frames on schedule can be synchronous with the picture signal light that image signal processing equipment 501 generates, and corresponding each picture frame of this polarization image signal light replaces in order.
Projector of the present invention 500 uses polagizing filters 502 and produces on schedule the polarization image signal light that the frequency as per second 120 frames replaces, each picture frame replaces in order, then projection lens 503 converts this polarization image signal light to direction of vibration parallels and the polarization frequency is constant new polarization image signal light, and the direction of vibration of this new polarization image signal light light when projection screen reflexes to polaroid glasses can not change, the beholder is by polaroid glasses left side eyeglass, right eyeglass can only be seen corresponding image, be that the beholder receives a left-eye frame by polaroid glasses, next right eye frame, another left-eye frame then, next another right eye frame, thereby in visual system, produce stereo perception, reach the purpose of viewing and admiring stereopsis, reach the purpose of viewing and admiring stereopsis thereby reach realization by a projector.
The present invention also provides a kind of stereo image system.
See also Fig. 6, be the synoptic diagram of stereo image system of the present invention, this stereo image system 600 comprises: projector 601, projection screen 602, polaroid glasses 603;
Image signal processing equipment 6011 is used for generating picture signal light;
Polagizing filter 6012 is arranged on the bang path of the picture signal light that image signal processing equipment 6011 generates, and comprising: electric field selector switch 60121, electric field provide device 60122, the polarizer 60123;
Electric field selector switch 60121 is used for selecting the schedule time, provides electric field to the polarizer 60123;
Electric field provides device 60122, and being used for provides electric field to the polarizer 60123 when 60121 selections of electric field selector switch provide electric field to the polarizer 60123;
The polarizer 60123 comprises: Polarizer 601231, first conductive layer 601232, liquid crystal layer 601233, second conductive layer 601234;
First conductive layer 601232, bonding with Polarizer 601231, be used for seeing through this polarization image signal light one;
Second conductive layer 601234, bonding with liquid crystal layer 601233, be used for seeing through polarization image signal light one, the polarization image signal light two that liquid crystal layer 601233 sees through;
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:
Electric field selector switch 60121 is chosen in N/120 during second, provides electric field to the polarizer 60123, and N wherein comprises odd number, even number.
Wherein, first conductive layer 601232 comprises tin indium oxide ITO electro-conductive glass, and is bonding with Polarizer 601231, is used for seeing through this polarization image signal light one.
Wherein, second conductive layer 601234 comprises tin indium oxide ITO electro-conductive glass, and is bonding with liquid crystal layer 601233, is used for seeing through polarization image signal light one, the polarization image signal light two that liquid crystal layer 601233 sees through.
Wherein, liquid crystal layer 601233 comprises twisted-nematic TN type liquid crystal layer, bonding with first conductive layer 601232, be used at first conductive layer 601232, when second conductive layer 601234 does not add electric field, rotate light 90 degree that first conductive layer 601232 sees through, obtain linearly polarized light two, namely obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; When electric field provides device 60122 that electric field is provided to first conductive layer 601232, second conductive layer 601234, see through this polarization image signal light one.
Wherein, liquid crystal layer 601233 comprises super twisted nematic STN type liquid crystal layer, bonding with first conductive layer 601232, be used at first conductive layer 601232, when second conductive layer 601234 does not add electric field, rotate light 270 degree that first conductive layer 601232 sees through, obtain linearly polarized light two, namely obtain polarization image signal light two, and see through the polarization image signal light two that this obtains after rotation; When electric field provides device 60122 that electric field is provided to first conductive layer 601232, second conductive layer 601234, see through this polarization image signal light one.
Wherein, electric field selector switch 60121 comprises the power supply gate, is used for selecting the schedule time, provides electric field to the polarizer 60123.
Wherein, electric field provides device 60122 to comprise power supply, and being used for provides electric field to the polarizer 60123 when 60121 selections of electric field selector switch provide electric field to the polarizer 60123.
Wherein, image signal processing equipment 6011 comprises: digital light is handled the type image signal treatment facility, is used for generating picture signal light; Or liquid crystal on silicon type image signal treatment facility, be used for generating picture signal light; Or the liquid crystal type image signal processing equipment, be used for generating picture signal light; Or display device, being used for generating picture 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 broadcast frequency of program source.
Wherein, the polarization image signal light that replaces that polagizing filter 6012 produces as the frequency of per second 120 frames on schedule can be synchronous with the picture signal light that image signal processing equipment 6011 generates, and corresponding each picture frame of this polarization image signal light replaces in order.
Stereo image system 600 of the present invention is used projector 601 and is produced polarization image signal light alternately as the frequency of per second 120 frames on schedule, each picture frame replaces in order, and the direction of vibration of the polarization image signal light light when projection screen 602 reflexes to polaroid glasses 603 that replaces of this generation can not change, the beholder is by polaroid glasses 603 left eyeglasses 6031, right eyeglass 6032 can only be seen corresponding image, be that the beholder receives a left-eye frame by polaroid glasses 603, next right eye frame, another left-eye frame then, next another right eye frame, thereby in visual system, produce stereo perception, reach the purpose of viewing and admiring stereopsis, reach the purpose of viewing and admiring stereopsis thereby reach realization 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., all should be included within 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 is used for generating picture 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 is used for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, and being used for provides electric field to the described polarizer when described electric field selector switch selection provides electric field to the described polarizer;
The described polarizer comprises: Polarizer, first conductive layer, liquid crystal layer, second conductive layer;
Described Polarizer is used for seeing through the light that parallels direction with polar orientation, sees through the picture signal light that described image signal processing equipment generates, and obtains polarization image signal light one;
Described first conductive layer, bonding with described Polarizer, be used for seeing through described polarization image signal light one;
Described liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate the light predetermined angular that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described second conductive layer, see through described polarization image signal light one;
Described second conductive layer, bonding with described liquid crystal layer, be used for seeing through polarization image signal light one, the polarization image signal light two that described liquid crystal layer sees through;
Described projection lens, be arranged on the bang path of the polarizer sees through described in the described polagizing filter polarization image signal light one, polarization image signal light two, be used for the imaging to the projection screen of the described polarization image signal light one of projection, polarization image signal light two;
Wherein, described liquid crystal layer comprises:
Twisted-nematic TN type liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate light 90 degree that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described second conductive layer, see through described polarization image signal light one; Or
Super twisted nematic STN type liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate light 270 degree that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described second conductive layer, see through described polarization image signal light one.
2. projector as claimed in claim 1 is characterized in that, described first conductive layer comprises tin indium oxide ITO electro-conductive glass, and is bonding with described Polarizer, is used for seeing through described polarization image signal light one;
Described second conductive layer comprises tin indium oxide ITO electro-conductive glass, and is bonding with described liquid crystal layer, is used for seeing through polarization image signal light one, the polarization image signal light two that described liquid crystal layer sees through.
3. projector as claimed in claim 1 is characterized in that, described electric field selector switch is chosen in N/120 during second, provides electric field to the described polarizer, and described N comprises odd number, even number.
4. as claim 1 or 3 described projectors, it is characterized in that described image signal processing equipment comprises: digital light is handled the type image signal treatment facility, is used for generating picture signal light; Or liquid crystal on silicon type image signal treatment facility, be used for generating picture signal light; Or the liquid crystal type image signal processing equipment, be used for generating picture signal light; Or display device, being used for generating picture 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 is used for generating picture 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 is used for selecting the schedule time, provides electric field to the described polarizer;
Described electric field provides device, and being used for provides electric field to the described polarizer when described electric field selector switch selection provides electric field to the described polarizer;
The described polarizer comprises: Polarizer, first conductive layer, liquid crystal layer, second conductive layer;
Described Polarizer is used for seeing through the light that parallels direction with polar orientation, sees through the picture signal light that described image signal processing equipment generates, and obtains polarization image signal light one;
Described first conductive layer, bonding with described Polarizer, be used for seeing through described polarization image signal light one;
Described liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate the light predetermined angular that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described second conductive layer, see through described polarization image signal light one;
Described second conductive layer, bonding with described liquid crystal layer, be used for seeing through polarization image signal light one, the polarization image signal light two that described liquid crystal layer sees through;
Described projection lens, be arranged on the bang path of the polarizer sees through described in the described polagizing filter polarization image signal light one, polarization image signal light two, be used for changing described polarization image signal light one into polarization image signal light three, and throw the imaging to the described projection screen of described polarization image signal light three; Change described polarization image signal light two into polarization image signal light four, and throw the imaging to the described projection screen of described polarization image signal light four; 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 projection lens projects described in the described projector polarization image signal light three, polarization image signal light four, is used for the described polarization image signal light three of reflection, obtains polarization image signal light five; Be used for the described polarization image signal light four of reflection, obtain polarization image signal light six; The direction of vibration of the described polarization image signal light five that obtains parallels with the direction of vibration of polarization image signal light three, and the direction of vibration of the described polarization image signal light six that obtains parallels with the direction of vibration of polarization image signal light four;
Described polaroid glasses are arranged on the bang path of polarization image signal light five through obtaining after the reflection of described projection screen, polarization image signal light six, comprising: left eyeglass, right eyeglass, frame;
Described left eyeglass is arranged on the described frame, comprises polarized lenses one, and polar orientation parallels with the direction of vibration of polarization image signal light five, is used for seeing through the light that parallels direction with polar orientation;
Described right eyeglass is arranged on the described frame, comprises polarized lenses two, and polar orientation parallels with the direction of vibration of polarization image signal light six, is used 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 comprises:
Twisted-nematic TN type liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate light 90 degree that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described second conductive layer, see through described polarization image signal light one;
Super twisted nematic STN type liquid crystal layer, bonding with described first conductive layer, be used at described first conductive layer, when described second conductive layer does not add electric field, rotate light 270 degree that described first conductive layer sees through, obtain polarization image signal light two, and see through described polarization image signal light two; When described electric field provides device that electric field is provided to described first conductive layer, described 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 first conductive layer comprises tin indium oxide ITO electro-conductive glass, and is bonding with described Polarizer, is used for seeing through described polarization image signal light one;
Described second conductive layer comprises tin indium oxide ITO electro-conductive glass, and is bonding with described liquid crystal layer, is used for seeing through polarization image signal light one, the polarization image signal light two that described liquid crystal layer sees through.
7. stereo image system as claimed in claim 5 is characterized in that, described electric field selector switch is chosen in N/120 during second, provides electric field to the described polarizer, and described N comprises odd number, even number.
8. as claim 5 or 7 described stereo image systems, it is characterized in that described image signal processing equipment comprises: digital light is handled the type image signal treatment facility, is used for generating picture signal light; Or liquid crystal on silicon type image signal treatment facility, be used for generating picture signal light; Or the liquid crystal type image signal processing equipment, be used for generating picture signal light; Or display device, being used for generating picture signal light, described display device comprises TV, computer, projector, navigating instrument, mobile phone, camera.
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| CN201110070900XA CN102591127B (en) | 2011-03-23 | 2011-03-23 | Projector and stereoscopic image system |
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| CN201110070900XA CN102591127B (en) | 2011-03-23 | 2011-03-23 | Projector and stereoscopic image system |
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| CN102591127B true CN102591127B (en) | 2013-07-17 |
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| CN103489338A (en) * | 2013-09-29 | 2014-01-01 | 国家电网公司 | Three-dimensional scene projection player |
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| JPS63274922A (en) * | 1987-05-06 | 1988-11-11 | Jeco Co Ltd | Stereoscopic display device |
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