CN101114055A - 2D-3D transferable automatic stereo display device - Google Patents
2D-3D transferable automatic stereo display device Download PDFInfo
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- CN101114055A CN101114055A CNA2007101211300A CN200710121130A CN101114055A CN 101114055 A CN101114055 A CN 101114055A CN A2007101211300 A CNA2007101211300 A CN A2007101211300A CN 200710121130 A CN200710121130 A CN 200710121130A CN 101114055 A CN101114055 A CN 101114055A
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Abstract
The invention discloses a 2D-3D convertible automatic solid displaying device. The invention comprises an image light-supply device, a polarization light converter and a lens component. The image light-supply device is used for providing a linearity polarization light light-supply for images. The polarization light converter is used for controllably leading to the incident linearity polarization light light-supply directly being transmitted without turning or turned to be a polarization light which is vertical to a polarization direction of incidence, and also leading to the sent-out light being shot to the lens component. The lens component comprises a single refractive index lens and double refractive index lens which form a combined lens, and the two lenses all respectively comprises a plane part and a curved face part which is opposite to the plane part. And the curved face parts of two lenses correspond to each other. For the two polarization lights, namely one turned by the polarization light converter or the other without turning, the combined lens functions as a convex to one of the two lights and as a plane lens to the other. The plan of the invention is easy to be realized and the converting time is short but the quality is high.
Description
Technical field
The present invention relates to the stereo display technique field, relate in particular to a kind of 2D-3D convertible automatic stereo display device.
Background technology
The mankind are that the nuance of the object seen by right eye and left eye comes the degree of depth of perceptual object, thereby identify stereo-picture, and this species diversity is called as parallax.Stereo display technique is exactly the parallax that comes manufacturer's right and left eyes by artificial means, send to two width of cloth images of parallax respectively to images of left and right eyes, makes brain after having obtained the different images that right and left eyes sees, produces the sensation of observing the true three-dimension object.The self-action 3 d display device generally has dual mode: slit grating formula autostereoscopic display apparatus and microlens array autostereoscopic display apparatus.Wherein the microlens array autostereoscopic display apparatus comprises display panel and is installed in the microlens array in display panel the place ahead, thereby the 3D rendering that will come from display panel is divided into right eye and left-eye image.
Conventional microlens formula autostereoscopic display apparatus can't be realized the conversion between the 2D-3D, has brought inconvenience to use.Therefore need a kind of autostereoscopic display apparatus, it can be changed between 2D and 3D pattern according to the picture signal that is provided.At this demand, a lot of research work have been carried out.Mention a kind of 2D-3D convertible automatic stereo display device as US5500765, the scioptics sheet moves the conversion that realizes between the 2D-3D at the machinery on the display panel.But the influence of factors such as the realization of this mechanical switch principle is vibrated, humidity, dust and wayward.US6069650, CN1892289 have utilized liquid crystal that ordinary light (o light) and extraordinary ray (e light) are produced different refractive indexes and have realized the 2D-3D conversion in addition, they all need be at the conductive layer of lenticular surface plating electrically conductive layer or gradient-structure, to reach the purpose of control liquid crystal director direction.Fig. 1 has represented the structure and the principle of traditional 2D-3D convertible automatic stereo display device.As Fig. 1, this device mainly comprises display panel 1, microlens array 2, transparent flat plate 5 in the face of microlens array, electrically conductive layer or gradient electrode layer 3 on lenticule and transparent flat plate surface, be filled in the liquid crystal 4 between microlens array and the transparent flat plate, and the electrode 6 that is connected to two electrically conductive layers or gradient electrode layer.According to this structure, when not having voltage to be applied to electrode 6, the director that the polarization direction of incident polarized light is parallel to liquid crystal is an optical axis direction, and the refractive index that sees through liquid crystal as Fig. 2 A light this moment is n
e, and n
eThe refractive index n that is not equal to microlens material
p, light reflects on the lenticule surface, is shown as 3D effect.When applying a voltage to electrode 6, as Fig. 2 B, form electric field between the electrically conductive layer between microlens array and the transparent flat plate, the liquid crystal director direction is changed into according to direction of an electric field and is arranged, the polarization direction of incident polarized light is an optical axis direction perpendicular to the director of liquid crystal, and the refractive index that light sees through liquid crystal is n
o, this moment n
oEqual the microlens material refractive index n
p, light passes lenticule 2, liquid crystal 4 and transparent flat plate 5 under situation about not reflecting, be shown as the 2D effect.
Because the microlens array accuracy requirement is very high, and is non-smooth surface, therefore this technology at microlens array surface plating electrically conductive layer or gradient electrode layer is very difficult, and the precision of having plated the microlens array that is difficult to guarantee behind the electrically conductive layer; And voltage is applied on the electrically conductive layer between lenticule battle array and the transparent flat plate, form electric field, the spacing of this electric field is big, electric field intensity is very little under the identical situation of supply voltage, the time that liquid crystal director between microlens array and transparent panel trend electric field is arranged and when cancelling electric field liquid crystal director to get back to time of original position of orientation very long, thereby the response time that causes this device to be changed between 2D-3D is very long, makes spectators' eyes produce sense of discomfort.
Summary of the invention
The object of the present invention is to provide the autostereoscopic display apparatus of a kind of new construction, new principle to realize automatic conversion between the 2D-3D, this device technique requires simple, is easy to realize that lens subassembly is more accurate, the transition response time is short, realizes low-cost, high-quality 2D-3D conversion effect.
The object of the invention realizes by following technical proposals: the invention provides a kind of 2D-3D convertible automatic stereo display device, comprising: the device of image light source is provided, also comprises polarized light conversion device and lens subassembly;
The described device that image light source is provided is used to provide the linear polarization radiant of image;
Described polarized light conversion device, the vertical polarized light in polarization direction when being used for controllable described linearly polarized photon and not rotating direct transmission or be rotated into incident incident, the light of outgoing incides described lens subassembly;
Described lens subassembly, comprise single refraction rate lens and refraction of birefringence lens, and described single refraction rate lens and described refraction of birefringence lens constitute compound lens, described two lens include planar section and curvature portion on the other side, the curvature portion of two lens agrees with mutually, this compound lens shows as plano lens to wherein a kind of convex lens that show as in described polarized light conversion device rotation back or the non-rotary two kinds of polarized lights to another kind.
Described single refraction rate lens can be convex lens, and the refractive index of described single refraction rate lens equals one of them refractive index of described refraction of birefringence lens and greater than the another one refractive index.
Described refraction of birefringence lens is can convex lens, and the refractive index of described single refraction rate lens equals one of them refractive index of described refraction of birefringence lens and less than the another one refractive index.
The refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described ordinary refraction index n
oAnd greater than described extraordinary ray refractive index n
e
The refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described extraordinary ray refractive index n
eAnd greater than described ordinary refraction index n
o
The refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described ordinary refraction index n
oAnd less than described extraordinary ray refractive index n
e
The refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described extraordinary ray refractive index n
eAnd less than described ordinary refraction index n
o
Described polarized light conversion device comprises: two inboards have the transparent panel of conductive materials thin layer, be coated with oriented layer on described two conductive materials thin layers, two oriented layer directions of orientation are vertical mutually, the nematic liquid crystal that between two oriented layer, has distortion, when two conductive materials thin layers do not power up, polarization direction when the linearly polarized photon of incident rotates to incident by this polarized light conversion device rear polarizer direction is vertical, and when powering up, the linearly polarized photon of incident does not rotate.
The described device of image light source that provides comprises the display panel that linearly polarized photon can be provided.
The described device of image light source that provides comprises the display panel and the polarizer that nonlinear polarization light is provided, the described polarizer is placed between described display panel and the described polarized light conversion device, and the nonlinear polarization phototransformation that described display panel is sent is a linearly polarized photon.
Described refraction of birefringence lens comprises the material with birefringence, and the material of described birefringence is a liquid crystal material.
The orientation process of the material of described birefringence is friction orientation, photo orientated, temperature control orientation or automatically controlled orientation.
The described device that image light source is provided comprises a kind of in Plasmia indicating panel, display panels, organic light emitting apparatus, field emission apparatus, cathode-ray tube (CRT) and the liquid crystal rear-projection.
Utilize above-mentioned 3 d display device provided by the invention, can low-cost, the high-quality conversion that realizes 2D-3D.
Description of drawings
Fig. 1 is traditional 2D-3D convertible automatic stereo display device synoptic diagram;
Fig. 2 A is a polarized light when being incident on device shown in Figure 1, the index path under powering state not;
Fig. 2 B is a polarized light when being incident on device shown in Figure 1, the index path under powering state;
Fig. 3 changes the general illustration of autostereoscopic display apparatus automatically for the 2D-3D of the embodiment (1) of the principle of the invention;
Fig. 4 A and Fig. 4 B are that the 2D-3D of embodiments of the invention (1) changes the structure principle chart under two kinds of situations of autostereoscopic display apparatus automatically;
Fig. 5 A and Fig. 5 B are that the 2D-3D of embodiments of the invention (2) changes the structure principle chart under two kinds of situations of autostereoscopic display apparatus automatically;
Fig. 6 changes the autostereoscopic display apparatus general illustration automatically for the 2D-3D of the exemplary embodiment (3) of the principle of the invention;
Fig. 7 A and Fig. 7 B are that the 2D-3D in the embodiments of the invention (3) changes the structure principle chart under two kinds of situations of autostereoscopic display apparatus automatically;
Fig. 8 A and Fig. 8 B are that the 2D-3D in one exemplary embodiment of the present invention (4) changes the structure principle chart under two kinds of situations of autostereoscopic display apparatus automatically;
Embodiment
The 2D-3D that Fig. 3 schematically expresses exemplary embodiment of the present invention (1) changes the autostereoscopic display apparatus structure automatically, 2D-3D changes autostereoscopic display apparatus automatically and comprises: the display panel 10 that image is provided, be responsible under the 2D situation, will revolving and turn 90 degrees by the light direction of vibration that display panel 10 provides, the polarized light conversion device of the light direction of vibration that provides by display panel 10 is not provided under the 3D situation, and, mainly act as the image that transmission provides in the 2D pattern by the lens subassembly that single refraction rate lens and refraction of birefringence lens constitute, image with incident in the 3D pattern is divided into eye image and left-eye image.Described polarized light conversion device structure is similar to general TN type liquid crystal cell, by two ito glass 11a, 11b, oriented layer 12a, 12b, inside are full of nematic liquid crystal 13 encapsulation and constitute, power supply is connected to ito glass 11a by electrode 17a and 17b, on the 11b, vertical 90 degree of two oriented layer molecular orientation.Because of this technical maturity, so seldom do and give unnecessary details, what be worth proposition is that the emergent light of working as display panel 10 needs add a slice polaroid for the nonlinear polarization light time before display panel, making the light that is incident on polarized light conversion device is linearly polarized photon, under the situation about not powering up, the polarization direction of this linearly polarized photon is identical with oriented layer 12a surface molecular orientation, and then linearly polarized light will revolve gradually with the liquid crystal molecule direction of principal axis and turn 90 degrees, and is parallel to oriented layer 12b surface molecular direction of principal axis and penetrates.If the emergent light of display panel 10 is a linearly polarized photon, then need not this polaroid is set, and various structure devices of the present invention all is suitable for this condition.The structure of lens subassembly is by single refraction rate convex lens 14, and birefraction concavees lens 15 and glass substrate 16 are formed.Convex lens among the present invention or concavees lens constitute by a plurality of micro lens in fact, also can be referred to as lens arra.Wherein the refractive index of single refraction rate convex lens 14 is n
1, the ordinary refraction index of birefraction concavees lens 15 is n
o, the extraordinary ray refractive index is n
e, and n
1=n
o, n
1＞n
eWherein the single refraction lens material can be high molecular polymer or other rigid transparent materials, and the material of birefringent lens can be selected the negativity nematic liquid crystal, or cholesteric liquid crystal or kalzit; If liquid crystal, can under liquid state, fill and enter in the space that is constituted by single refraction rate lens 14 and glass sheet 16.Apply oriented layer 12c (oriented layer 12c can be non-conterminous with glass sheet 16 among other embodiment in the back) on glass sheet 16 surfaces and make that through orientation process the polarization direction of polarized light of liquid crystal arrangement direction and display device outgoing is identical on single refraction convex lens 14 surface.Certainly, can set flexibly, here special case just according to the setting of polarized light conversion device.There is description other details back.
Fig. 4 a and Fig. 4 b have represented that with more details polarized light conversion device and lens subassembly are at the index path that applies the voltage front and back.
Fig. 4 a is depicted as and applies the preceding index path of voltage, the direction of vibration of incident polarized light is identical with the direction of orientation on oriented layer 12a surface, because the inside liquid crystal of polarized light conversion device can revolve incident polarized light and turn 90 degrees, polarized light is rotated by 90 degrees through polarized light conversion device after vibration direction and incides lens subassembly, this moment, the polarization direction was vertical with the liquid crystal arrangement direction of concavees lens 15, so refractive index is n
o, according to the refractive index n of selected materials single refraction convex lens 14
1=n
o, promptly the refractive index of single refraction convex lens 14 is identical with the refractive index of liquid crystal concavees lens 15 at this moment, so do not reflect the light straight-line pass at two kinds of material interface places.In this case, described autostereoscopic display apparatus is the 2D pattern.
When polarized light conversion device is applied in voltage, shown in Fig. 4 b, when polarized light conversion device powers up, the whole para-electric field directions of liquid crystal arrangement direction are arranged, when polarized light passes through, can not change the polarization direction and incide concavees lens 15, this moment, the polarization direction was parallel with the liquid crystal arrangement direction of concavees lens 15, and the refractive index of concavees lens 15 is n
e, according to the material of desire choosing, the refractive index n of single refraction convex lens 14
1＞n
e, promptly this moment, single refraction convex lens 14 refractive index was greater than formed concavees lens 15 refractive indexes of liquid crystal, so the optical effect of compound lens still be convex lens, thus light through out-of-date understand reflect.In this case, described autostereoscopic display apparatus can be presented at two width of cloth images respectively the left eye and the right eye of human eye, and what make that human eye sees is the 3D stereo-picture, and promptly autostereoscopic display apparatus operates in the 3D pattern.
In fact, single refraction rate convex lens 14 can change on combination form slightly with birefraction concavees lens 15 in the present embodiment, with the combination Rotate 180 degree of concavees lens 15 and convex lens 14.Make the planar section of concavees lens face the incident portion of light, the convex portions of convex lens 14 is the direction of light incident.When the polarization direction of the light that incides compound lens was parallel to the orientation of birefraction liquid crystal, refractive index was n
e, the refractive index n of single refraction convex lens 14
1＞n
eSo compound lens still shows as convex lens, the light of incident is reflected, this moment, autostereoscopic display apparatus operated in the 3D pattern.
And, be the orientation perpendicular to the birefraction liquid crystal if incide the polarization direction of the polarized light of polarized light conversion device, then, this control procedure is opposite, that is: when polarized light conversion device did not power up, this autostereoscopic display apparatus operated in the 3D pattern; When powering up, for the 2D pattern shows.Certainly, the polarized light that no matter incides polarized light conversion device is any direction, the liquid crystal arrangement direction of the incident end of this polarized light conversion device is identical with the polarization direction, make polarized light to be rotated by 90 degrees, as long as and can control rotation and do not revolve the device that turn 90 degrees and to cooperate compound lens to realize purpose of the present invention.
Example (2) (3) (4) is similar substantially to example (1) structural principle, is according to selected liquid crystal 15 properties of materials differences, and designs the difference to some extent of different orientations or compound lens structure.
Execute example (2): the 2D-3D that Fig. 5 a and 5b express exemplary embodiment of the present invention (2) changes the autostereoscopic display apparatus structure automatically, compares with example (1), and difference is that selected liquid crystal concavees lens 15 are optics positivity liquid crystal (n
e＞n
o), as the positivity nematic liquid crystal, and the Liquid Crystal Molecules Alignment direction of birefraction concavees lens 15 is vertical with the polarized light direction of vibration of display outgoing.And the refractive index n of single refraction rate convex lens
1=n
e, n
1＞n
oWhen polarized light conversion device not during making alive, incident polarized light is rotated by 90 degrees the parallel single refraction rate convex lens 14 that pass in back, the polarization direction of light that enters single refraction rate convex lens 14 is parallel with birefraction concavees lens 15 liquid crystal arrangement directions (optical axis direction), and this moment, the refractive index of this incident light was the refractive index n of extraordinary ray
e, because n
1=n
e, do not reflect this moment; Be that autostereoscopic display apparatus operates in the 2D pattern.
When polarized light conversion device applies voltage, the optical axis of nematic liquid crystal 13 is parallel to direction of an electric field, incident polarized light can not rotate, be directly incident in the single refraction rate lens 14, incide polarization of light direction in the single refraction rate lens 14 this moment perpendicular to the liquid crystal arrangement direction of birefringence concavees lens 15, this moment, refractive index was the refractive index n of ordinary light
o, by n
1＞n
o, reflect this moment, and in this case, described autostereoscopic display apparatus is presented at the left eye and the right eye of human eye respectively with two width of cloth images, and what make that human eye sees is the 3D stereo-picture, and promptly autostereoscopic display apparatus operates in the 3D pattern.
Single refraction rate convex lens 14 can change on combination form equally slightly with birefraction concavees lens 15 in the present embodiment, with the combination Rotate 180 degree of concavees lens 15 and convex lens 14.Make the planar section of concavees lens face the incident portion of light, the convex portions of convex lens 14 is the direction of light incident.When the polarization direction of the light that incides compound lens during perpendicular to the orientation of birefraction liquid crystal, refractive index is n
o, the refractive index n of single refraction convex lens 14
1＞n
oSo compound lens still shows as convex lens, the light of incident is reflected, this moment, autostereoscopic display apparatus operated in the 3D pattern.Otherwise incident ray then shows for 2D.
Embodiment (3): Fig. 6 is the general effect figure of this embodiment; Fig. 7 a and 7b express the structure principle chart under two kinds of situations that 2D-3D in the embodiments of the invention (3) changes autostereoscopic display apparatus automatically, in this device, lens subassembly comprises convex lens 17, with concavees lens 18, convex lens 17 adopt the birefraction material, usually select liquid crystal for use, select optics positivity liquid crystal in the present embodiment for use, refractive index is respectively n
oAnd n
e, concavees lens 18 adopt single refraction rate material, and refractive index is n
1, and n
1=n
o, n
e＞n
1Polarized light conversion device is with identical described in the embodiment of front, is used under situation about not powering up polarized light revolved turning 90 degrees; In the combination of lenses, the concavees lens 18 of single refraction rate, closely paste mutually with glass substrate 16 on the concavees lens back side (plane), and there is oriented layer 12c at the back side of convex lens 17, is close to ITO slide 11b, and its principle is to described example is similar before.As Fig. 7 a, 7b, and the direction of orientation of the liquid crystal in the convex lens 17 is identical with display incident polarization direction.
When polarized light conversion device not during making alive, shown in Fig. 7 a, the light that the polarization direction is parallel to the liquid crystal arrangement direction of convex lens 17 revolves through polarized light conversion device and turn 90 degrees, and is the polarization direction vertical with the liquid crystal arrangement direction of convex lens 17, and this moment, the refractive index of concavees lens 18 was n
o, because the refractive index n of concavees lens 18
1=n
oSo light passes and does not reflect after convex lens 17 enter concavees lens 18; At this moment, showing as 2D shows.
When the polarized light conversion device making alive, shown in Fig. 7 b, after light passed polarized light conversion device, the polarization direction was constant, and polarization light is the polarization direction parallel with the liquid crystal of convex lens 17 and incides concavees lens 18, and this moment, the refractive index of convex lens 17 was n
e, because n
e＞n
1So the optical effect of lens subassembly still is convex lens, polarization light passes and can reflect after convex lens 17 enter concavees lens 18, and this moment, autostereoscopic display apparatus showed as the 3D demonstration.
And birefraction convex lens 17 can change on combination form equally slightly with injection rate concavees lens 18 in the present embodiment, with the combination Rotate 180 degree of concavees lens 18 and convex lens 17.Make the planar section of concavees lens face the incident portion of light, the convex portions of convex lens 17 is the direction of light incident.When the polarization direction of the light that incides compound lens was parallel to the orientation of birefraction liquid crystal, refractive index was n
e, the refractive index n of birefringence convex lens 17
e＞n
1So compound lens still shows as convex lens, the light of incident is reflected, this moment, autostereoscopic display apparatus operated in the 3D pattern.Otherwise the polarization direction of incident ray then shows for 2D.
Embodiment (4): with example (3) in like manner, shown in Fig. 8 a, be that with the difference of embodiment (4) liquid crystal of selected convex lens 17 is optics negative liquid crystal, i.e. n
o＞n
e, and make the refractive index n of single refraction rate concavees lens 18
1=n
e, the polarization direction of polarized light of inciding polarized light conversion device this moment is vertical with the liquid crystal arrangement direction of convex lens 17.
When not powering up, as Fig. 8 a, incident ray is rotated by 90 degrees through behind the polarized light conversion device, becomes the direction parallel with the liquid crystal arrangement direction of convex lens 17, and the refractive index of the liquid crystal of convex lens 17 is n at this moment
e, because n
1=n
e, lens subassembly does not have refraction action, and this moment, autostereoscopic display apparatus showed as the 2D demonstration.
When powering up, as Fig. 8 b, the polarized light by the polarized light whirligig can not be rotated, and the polarization direction of light that enters convex lens 17 is vertical with the liquid crystal arrangement direction, and this moment, the liquid-crystal refractive-index of convex lens 17 was n
o, because n
o＞n
1, the optical effect of lens subassembly is convex lens, and this polarization light can reflect through out-of-date, focuses on the focus of the compound lens of convex lens 17 and concavees lens 18, and this moment, autostereoscopic display apparatus showed as the 3D demonstration.
Birefraction convex lens 17 can change on combination form equally slightly with injection rate concavees lens 18 in the present embodiment, combination Rotate 180 degree with concavees lens 18 and convex lens 17, make the planar section of concavees lens face the incident portion of light, the convex portions of convex lens 17 is the direction of light incident.When the polarization direction of the light that incides compound lens during perpendicular to the orientation of birefraction liquid crystal, refractive index is n
o, the refractive index n of birefringence convex lens 17
o＞n
1So compound lens still shows as convex lens, the light of incident is reflected, this moment, autostereoscopic display apparatus operated in the 3D pattern.Otherwise the polarization direction of incident ray then shows for 2D.
By above-mentioned four embodiment as can be known, in the lens subassembly, three kinds of refractive index ns are arranged
o, n
eAnd n
1, must have two to equate in three kinds of refractive indexes, obviously n
oAnd n
eCan not equate, just n
1Equal n
e, or equal n
oIf, n
1Greater than with its unequal that birefraction in refractive index, then a n
1Pairing single refraction rate lens are necessary for convex lens; Otherwise, n
oAnd n
ePairing refraction of birefringence lens is necessary for convex lens.Physical location for two lens can be changed front and back, can reach purpose of the present invention.And for polarized light conversion device, clearly, as long as the polarized light that comes out from this device has two kinds of forms under controlled conditions, a kind of polarized light that is out is perpendicular to the liquid crystal arrangement direction of refraction of birefringence lens, and another kind is the liquid crystal arrangement direction that is parallel to refraction of birefringence lens.As for how many degree of rotation is not necessary restriction, if can rotate 270 degree, then with to revolve the effect that turn 90 degrees identical.Other auxiliary material in the lens subassembly such as glass substrate etc. and inessential structure, the solution of the present invention is not played a major role, have or not all not constitute influence enforcement of the present invention, these technological means those of ordinary skills all can adjust flexibly and make up, to realize purpose of the present invention.
The image light source that adopts in the present embodiment is a display panel, but be not limited to display panel, can adopt projector equipment, for example adopt convex lens in the place ahead of projector equipment, image is become parallel rays, if the light of projector equipment emission is polarized light, this can be directly incident on corresponding polarized light conversion device; If the light of projector equipment emission is nonpolarized light, then need to transfer nonpolarized light to polarized light with a polaroid or similar device before inciding polarized light conversion device, the liquid crystal arrangement direction in the setting of polarization direction and polarized light conversion device and the lens subassembly is corresponding.Certainly can also select alternate manner of the prior art that light source is provided.Power supply in the accompanying drawing and switch are schematically, can adopt power logic circuitry.Those skilled in the art can select and set corresponding light path flexibly, just give unnecessary details no longer one by one here.
Utilize such scheme of the present invention, can be easy to realize the conversion of 2D to 3D.And slewing rate is fast, can not influence visual discomfort fully.
Above-mentioned embodiment only is schematic; rather than restrictive, those skilled in the art is not breaking away under the scope situation that this method aim and claim protect under the enlightenment of this method; can also make a lot of distortion, these all belong within protection scope of the present invention.
Claims (13)
1. a 2D-3D convertible automatic stereo display device comprises: the device of image light source is provided, it is characterized in that, also comprise polarized light conversion device and lens subassembly;
The described device that image light source is provided is used to provide the linear polarization radiant of image;
Described polarized light conversion device, the vertical polarized light in polarization direction when being used for controllable described linear polarization radiant and not rotating direct transmission or be rotated into incident incident, the light of outgoing incides described lens subassembly;
Described lens subassembly, comprise single refraction rate lens and refraction of birefringence lens, and described single refraction rate lens and described refraction of birefringence lens constitute compound lens, described two lens include planar section and curvature portion on the other side, the curvature portion of two lens agrees with mutually, this compound lens shows as plano lens to wherein a kind of convex lens that show as in described polarized light conversion device rotation back or the non-rotary two kinds of polarized lights to another kind.
2. a kind of 2D-3D convertible automatic stereo display device according to claim 1, it is characterized in that, described single refraction rate lens are convex lens, and the refractive index of described single refraction rate lens equals one of them refractive index of described refraction of birefringence lens and greater than the another one refractive index.
3. a kind of 2D-3D convertible automatic stereo display device according to claim 1, it is characterized in that, described refraction of birefringence lens is convex lens, and the refractive index of described single refraction rate lens equals one of them refractive index of described refraction of birefringence lens and less than the another one refractive index.
4. a kind of 2D-3D convertible automatic stereo display device according to claim 2 is characterized in that the refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described ordinary refraction index n
oAnd greater than described extraordinary ray refractive index n
e
5. a kind of 2D-3D convertible automatic stereo display device according to claim 2 is characterized in that the refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described extraordinary ray refractive index n
eAnd greater than described ordinary refraction index n
o
6. a kind of 2D-3D convertible automatic stereo display device according to claim 3 is characterized in that the refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described ordinary refraction index n
oAnd less than described extraordinary ray refractive index n
e
7. a kind of 2D-3D convertible automatic stereo display device according to claim 3 is characterized in that the refractive index of described refraction of birefringence lens comprises the ordinary refraction index n with respect to ordinary light
oWith extraordinary ray refractive index n with respect to extraordinary ray
e, the refractive index of described single refraction rate lens equals described extraordinary ray refractive index n
eAnd less than described ordinary refraction index n
o
8. according to each described a kind of 2D-3D convertible automatic stereo display device in the claim 1 to 7, it is characterized in that, described polarized light conversion device comprises: two inboards have the transparent panel of conductive materials thin layer, be coated with oriented layer on described two conductive materials thin layers, two oriented layer directions of orientation are vertical mutually, the nematic liquid crystal that between two oriented layer, has distortion, when two conductive materials thin layers do not power up, polarization direction when the linearly polarized photon of incident rotates to incident by this polarized light conversion device rear polarizer direction is vertical, when powering up, the linearly polarized photon of incident does not rotate.
9. according to each described a kind of 2D-3D convertible automatic stereo display device in the claim 1 to 7, it is characterized in that the described device of image light source that provides comprises the display panel that linearly polarized photon can be provided.
10. according to each described a kind of 2D-3D convertible automatic stereo display device in the claim 1 to 7, it is characterized in that, the described device of image light source that provides comprises the display panel and the polarizer that nonlinear polarization light is provided, the described polarizer is placed between described display panel and the described polarized light conversion device, and the nonlinear polarization phototransformation that described display panel is sent is a linearly polarized photon.
11. according to each described a kind of 2D-3D convertible automatic stereo display device in the claim 1 to 7, it is characterized in that described refraction of birefringence lens comprises the material with birefringence, the material of described birefringence is a liquid crystal material.
12. a kind of 2D-3D convertible automatic stereo display device according to claim 11 is characterized in that, the orientation process of the material of described birefringence is friction orientation, photo orientated, temperature control orientation or automatically controlled orientation.
13. a kind of 2D-3D convertible automatic stereo display device according to claim 10, it is characterized in that the described device that image light source is provided comprises a kind of in Plasmia indicating panel, display panels, organic light emitting apparatus, field emission apparatus, cathode-ray tube (CRT) and the liquid crystal rear-projection.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101211300A CN101114055A (en) | 2007-08-30 | 2007-08-30 | 2D-3D transferable automatic stereo display device |
| CNA2008100075553A CN101261369A (en) | 2007-08-30 | 2008-02-28 | Convertible automatic stereo display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101211300A CN101114055A (en) | 2007-08-30 | 2007-08-30 | 2D-3D transferable automatic stereo display device |
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| CN101114055A true CN101114055A (en) | 2008-01-30 |
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| CNA2007101211300A Pending CN101114055A (en) | 2007-08-30 | 2007-08-30 | 2D-3D transferable automatic stereo display device |
| CNA2008100075553A Pending CN101261369A (en) | 2007-08-30 | 2008-02-28 | Convertible automatic stereo display device |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100075553A Pending CN101261369A (en) | 2007-08-30 | 2008-02-28 | Convertible automatic stereo display device |
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