CN102364379B - Naked eye stereoscopic display method based on liquid crystal light valve curtain device - Google Patents
Naked eye stereoscopic display method based on liquid crystal light valve curtain device Download PDFInfo
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- CN102364379B CN102364379B CN2011103623299A CN201110362329A CN102364379B CN 102364379 B CN102364379 B CN 102364379B CN 2011103623299 A CN2011103623299 A CN 2011103623299A CN 201110362329 A CN201110362329 A CN 201110362329A CN 102364379 B CN102364379 B CN 102364379B
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Abstract
The invention discloses a naked eye stereoscopic display method based on a liquid crystal light valve curtain device. Left-right eye parallax images at high frequency (usually not less than 120 HZ) are output by a high-frequency image source, and image light rays are parallelly output in a time interleaving way and are distributed in a comb shape through a light splitting component; the images distributed in the comb shape form virtual images through a lens group; and under the cooperation of a liquid crystal light valve A and a liquid crystal light valve B with a polaroid sheet, left eye images are separated from right eye images to achieve stereoscopic display so as to reduce crosstalk.
Description
Technical field
The present invention relates to the stereo display method field, be specially a kind of bore hole stereo display method based on the liquid crystal light valve proscenia.
Background technology
Several bore hole stereo display methods based on the parallax formula mainly contain disparity barrier formula (preposition, postposition) and post mirror method in the prior art.The utilization of disparity barrier stereo display technique is placed in a series of shading stripeds formation disparity barriers of vertical direction between backlight module and LCD panel, the picture of left eye and right eye is separated, so just can obtain the 3D image, the scheme that also has with the disparity barrier device in LCD the place ahead.Disparity barrier is generally realized with liquid crystal at present, can control the switch of disparity barrier like this, shows the 2D image during no parallax barrier, shows 3D rendering when disparity barrier is arranged.The shortcoming of this technology is that disparity barrier stops light, and brightness of display screen will decrease; In addition, display resolution meeting drop by half (double vision point) when watching stereoscopic picture plane, the resolution of many view display screen reduces equal proportion.
The lens pillar stereo display technique is proposed by Sanyo the earliest, and input very big strength in Philip was studied afterwards.This technology adds one deck microtrabeculae shape lens coating at liquid crystal panel, accurately align one group of pixel of liquid crystal display of lens pillar, each pixel is positioned on the focal plane of lens pillar, different pixels point is just projected to different directions by lens like this, the demonstration of control display screen matrix just can will separate for the viewable pictures of right and left eyes, deliver to respectively in the right and left eyes, realize that 3D shows.In the scheme of Philip, lens pillar has also been filled liquid crystal, can control the refractive index of lens, realizes during refracted ray that 3D shows, during refracted ray, then is not the 2D demonstration.The lens pillar technology can not stop backlight, display brightness is unaffected, but because it also is that different pixels is projected respectively in the right and left eyes, this is identical with the disparity barrier technology, so resolution will reduce when 3D showed, resolution also can reduce at double under the situation of many viewpoints.
Summary of the invention
The object of the invention provides a kind of bore hole stereo display method based on the liquid crystal light valve proscenia, easily reduces problem to solve existing bore hole stereo display method resolution.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of bore hole stereo display method based on the liquid crystal light valve proscenia, described 3 d display device comprises a high frequency image source, high frequency image source light path the place ahead is disposed with beam splitter, lens combination, liquid crystal light valve A, post the liquid crystal light valve B of polaroid, catoptron, it is characterized in that: modulation high frequency image source, make the high frequency image source export the left side with parallax of high frequency respectively to beam splitter, eye image, and make a left side by modulation high frequency image source, the light of eye image is with the staggered output of directional light mode sequential, beam splitter is with a left side, the output optical modulation of eye image becomes pectination to distribute, the left side that pectination distributes, eye image output light forms the virtual image respectively through after the lens combination; The virtual image for the left-eye image correspondence, make liquid crystal light valve A and liquid crystal light valve B all work in reflective condition, the most of light of left-eye image is reflexed to people's left eye by liquid crystal light valve A, left-eye image fraction light is incident to liquid crystal light valve B after seeing through liquid crystal light valve A, after liquid crystal light valve B reflection and being polarized sheet change 90 degree polarization states, can't see through liquid crystal light valve A again to intelligent's right eye; For the virtual image of eye image correspondence, make liquid crystal light valve A and liquid crystal light valve B all work in transmissive state, eye image light is after liquid crystal light valve A and individual layer liquid crystal are crossed in transmission successively, and the mirror reflection that is reflected is to the human body right eye; Duty by switchable liquid crystal light valve A and individual layer liquid crystal realizes the right and left eyes separation of images, and then realizes the stereo display of image.
Described a kind of bore hole stereo display method based on the liquid crystal light valve proscenia is characterized in that: in the 3 d display device, high frequency image source, beam splitter all are positioned in the focus of lens combination, and plane, liquid crystal light valve A place and beam splitter are at an angle; Plane, liquid crystal light valve B place, plane, catoptron place respectively with liquid crystal light valve A at an angle, catoptron is positioned at liquid crystal light valve B rear side and is close to liquid crystal light valve B.
Described a kind of bore hole stereo display method based on the liquid crystal light valve proscenia, it is characterized in that: the left-and right-eye images that the pectination that forms through beam splitter distributes, in the space, be respectively periodically evenly distribution, and adjacent sub-image source spacing equates with sub-image source width.
Described a kind of bore hole stereo display method based on the liquid crystal light valve proscenia, it is characterized in that: separately sub-image source lays respectively in the lens combination focal length in the left-and right-eye images that pectination distributes, thereby makes left-and right-eye images that pectination distributes through forming the upright virtual image of amplifying after the lens combination.
Described a kind of bore hole stereo display method based on the liquid crystal light valve proscenia is characterized in that: if image source output left-eye image, most of image light enters people's left eye by liquid crystal light valve A reflection, and the light that sees through can't enter right eye; If image source output eye image, most of light is entered people's right eye by mirror reflects; And left eye and eye image all are the image that pectination distributes, and catoptron and lens combination etc. is certain angle, with respect to left-eye image one relative displacement is arranged so reflex to the image of right eye, can realize that right and left eyes separates, and avoids crosstalking.
Stereo display method of the present invention adopts the virtual image forming technology, the virtual image is that the reflection of light extended line converges the picture that forms, and need not to accept with display screen, directly uses eye-observation, have and be shown as clear, the space multistory sense of picture, characteristics that depth feelings is strong, be suitable for very much stereo display.Therefore display packing of the present invention has been avoided other stereoscopic sensations based on the stereo display method of parallax method, the problem a little less than the depth feelings, also avoid other based on the problem that the stereo display method resolution of parallax method easily reduces, had the advantage of strong stereoscopic sensation, high depth feelings.
Description of drawings
Fig. 1 is light path principle figure of the present invention.
Embodiment
As shown in Figure 1.Formed by high frequency image source 1, beam splitter 2, lens combination 3, liquid crystal light valve A4, the liquid crystal light valve B5 that posts polaroid and catoptron 6 based on liquid crystal light valve curtain 3 d display device.High frequency image source 1, beam splitter 2 all are positioned in one times of focal length of lens combination 4, and 2 in plane, liquid crystal light valve A4 place and light splitting unit at an angle; Liquid crystal light valve B5, catoptron 6 and the angled placement of liquid crystal light valve A4, catoptron 6 is positioned at liquid crystal light valve B5 rear side, is close to liquid crystal light valve B5 and places.
In the inventive method.The right and left eyes anaglyph (being not less than 120HZ usually) of high frequency image source 1 output high frequency, image light is with the staggered output of directional light mode sequential, (space periodicity evenly distributes to form the pectination distribution through beam splitter 2, and adjacent sub-image source spacing equates with sub-image source width), the image that pectination distributes forms the virtual image through lens combination 3, the virtual image can work in transmission and reflective condition through liquid crystal light valve A4(again) cooperate the liquid crystal light valve B5 that posts polaroid to send into people's right and left eyes demonstration, has certain angle between liquid crystal light valve B5 and the liquid crystal light valve A4 before, can realize the right and left eyes separation of images by the angle of adjusting between liquid crystal light valve A4 and the liquid crystal light valve B5, form stereo display.
When high frequency image source 1 showed left-eye image, liquid crystal light valve A4 and liquid crystal light valve B5 all added voltage, and left-eye image forms space interval via beam splitter 2 modulation backs and distributes spacing size and each sub-image source equal and opposite in direction.Sub-image source emits beam and incides on the liquid crystal light valve A4 through lens combination 3, this moment, liquid crystal light valve A4 was in high reflection attitude, overwhelming majority light is reflected to observer's left eye, the light that sees through is by posting the liquid crystal light valve B5 of polaroid, the polarization state that reflects changes 90 degree, can't see through liquid crystal light valve B5 again and arrive right eye, because the sub-image source of space distribution is positioned at 3 one times of focal lengths of lens combination, so left eye will be seen the upright image (virtual image) of amplification.Equally, when high frequency image source 1 showed eye image, liquid crystal light valve A4 and liquid crystal light valve B5 be making alive (transmission state) not.Most of light sees through liquid crystal light valve A4 and liquid crystal light valve B5, enters observer's right eye by catoptron 6 reflections.High frequency image source 1 high frequency Alternation Display right and left eyes anaglyph is utilized the persistence of vision mechanism of human eye, and right and left eyes is seen image separately respectively, after the fusion by brain, produces stereoscopic sensation.
When high frequency image source 1 output left eye figure, most of image light enters people's left eye by liquid crystal light valve A reflection, and the light that sees through can't enter right eye; If image is right eye figure, most of light is entered people's right eye by mirror reflects; And left eye and eye image all are the image that pectination distributes, and catoptron and lens combination etc. is certain angle, with respect to left-eye image one relative displacement is arranged so reflex to the image of right eye, can realize that right and left eyes separates, and avoids crosstalking.
Claims (4)
1. bore hole stereo display method based on the liquid crystal light valve proscenia, described 3 d display device comprises a high frequency image source, high frequency image source light path the place ahead is disposed with beam splitter, lens combination, liquid crystal light valve A, post the liquid crystal light valve B of polaroid, catoptron, it is characterized in that: modulation high frequency image source, make the high frequency image source export the left side with parallax of high frequency respectively to beam splitter, eye image, and make a left side by modulation high frequency image source, the light of eye image is with the staggered output of directional light mode sequential, beam splitter is with a left side, the output optical modulation of eye image becomes pectination to distribute, the left side that pectination distributes, eye image output light forms the virtual image respectively through after the lens combination; The virtual image for the left-eye image correspondence, make liquid crystal light valve A and liquid crystal light valve B all work in reflective condition, the most of light of left-eye image is reflexed to people's left eye by liquid crystal light valve A, left-eye image fraction light is incident to liquid crystal light valve B after seeing through liquid crystal light valve A, after liquid crystal light valve B reflection and being polarized sheet change 90 degree polarization states, can't see through liquid crystal light valve A again to intelligent's right eye; For the virtual image of eye image correspondence, make liquid crystal light valve A and liquid crystal light valve B all work in transmissive state, eye image light is after liquid crystal light valve A and individual layer liquid crystal are crossed in transmission successively, and the mirror reflection that is reflected is to the human body right eye; Duty by switchable liquid crystal light valve A and individual layer liquid crystal realizes the right and left eyes separation of images, and then realizes the stereo display of image; The left-and right-eye images that the described pectination that forms through beam splitter distributes be respectively periodically even the distribution in the space, and adjacent sub-image source spacing equates with sub-image source width.
2. a kind of bore hole stereo display method based on the liquid crystal light valve proscenia according to claim 1, it is characterized in that: in the 3 d display device, high frequency image source, beam splitter all are positioned in the focus of lens combination, and plane, liquid crystal light valve A place and beam splitter are at an angle; Plane, liquid crystal light valve B place, plane, catoptron place respectively with liquid crystal light valve A at an angle, catoptron is positioned at liquid crystal light valve B rear side and is close to liquid crystal light valve B.
3. a kind of bore hole stereo display method based on the liquid crystal light valve proscenia according to claim 1, it is characterized in that: separately sub-image source lays respectively in the lens combination focal length in the left-and right-eye images that pectination distributes, thereby makes left-and right-eye images that pectination distributes through forming the upright virtual image of amplifying after the lens combination.
4. a kind of bore hole stereo display method based on the liquid crystal light valve proscenia according to claim 1, it is characterized in that: if image source output left-eye image, most of image light enters people's left eye by liquid crystal light valve A reflection, and the light that sees through can't enter right eye; If image source output eye image, most of light is entered people's right eye by mirror reflects; And left eye and eye image all are the image that pectination distributes, and catoptron and lens combination etc. is certain angle, with respect to left-eye image one relative displacement is arranged so reflex to the image of right eye, can realize that right and left eyes separates, and avoids crosstalking.
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| CN2011103623299A CN102364379B (en) | 2011-11-16 | 2011-11-16 | Naked eye stereoscopic display method based on liquid crystal light valve curtain device |
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| CN2011103623299A CN102364379B (en) | 2011-11-16 | 2011-11-16 | Naked eye stereoscopic display method based on liquid crystal light valve curtain device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106873169A (en) * | 2015-12-10 | 2017-06-20 | 上海交通大学 | Three dimensional display |
| CN107884934B (en) * | 2017-11-10 | 2022-05-31 | 联想(北京)有限公司 | Head-mounted display device and control method thereof |
| CN110161796B (en) * | 2019-07-01 | 2023-04-18 | 成都工业学院 | Stereoscopic projection device based on double-lens array |
Citations (3)
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|---|---|---|---|---|
| US5912650A (en) * | 1996-10-16 | 1999-06-15 | Kaiser Electro-Optics, Inc. | Dichoptic display utilizing a single display device |
| CN1645186A (en) * | 2005-02-03 | 2005-07-27 | 四川大学 | Three-dimensional liquid-crystal projecting displaying device with big screen |
| CN102087415A (en) * | 2009-12-03 | 2011-06-08 | 和硕联合科技股份有限公司 | Stereoscopic display device and stereoscopic display method |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5912650A (en) * | 1996-10-16 | 1999-06-15 | Kaiser Electro-Optics, Inc. | Dichoptic display utilizing a single display device |
| CN1645186A (en) * | 2005-02-03 | 2005-07-27 | 四川大学 | Three-dimensional liquid-crystal projecting displaying device with big screen |
| CN102087415A (en) * | 2009-12-03 | 2011-06-08 | 和硕联合科技股份有限公司 | Stereoscopic display device and stereoscopic display method |
Non-Patent Citations (4)
| Title |
|---|
| 《Three-Dimensional Displays: A Review and Applications Analysis》;Holliman et al;《IEEE TRANSACTIONS ON BROADCASTING》;20110630;第57卷(第2期);362-371 * |
| 《反射式胆甾相液晶显示器件双稳特性的研究》;陆红波 等;《现代显示》;20081031(第93期);45-53 * |
| Holliman et al.《Three-Dimensional Displays: A Review and Applications Analysis》.《IEEE TRANSACTIONS ON BROADCASTING》.2011,第57卷(第2期),362-371. |
| 陆红波 等.《反射式胆甾相液晶显示器件双稳特性的研究》.《现代显示》.2008,(第93期),45-53. |
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Granted publication date: 20130717 Termination date: 20191116 |