CN102262346A - Display apparatus used for displaying multiple perspective images - Google Patents
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- CN102262346A CN102262346A CN2010101927469A CN201010192746A CN102262346A CN 102262346 A CN102262346 A CN 102262346A CN 2010101927469 A CN2010101927469 A CN 2010101927469A CN 201010192746 A CN201010192746 A CN 201010192746A CN 102262346 A CN102262346 A CN 102262346A
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Abstract
The invention discloses a display apparatus used for displaying multiple perspective images. The display apparatus comprises: a display screen and a plurality of projectors. Each projector includes: at least one light source module, one spatial light modulation component and a lens. The display screen respectively forms imaging of a first visual angle image and a second visual angle image emitted by the each projectors to a first sub-vision field and a second sub-vision field through a first light and a second light provided by the light source module.
Description
Technical field
The invention relates to a kind of in order to show the display device of multiple video.Particularly, the invention relates to a kind of display device, can transmit and time domain multiplex pattern in conjunction with space multi-way simultaneously, to reach the 3-D effect that shows multiple visual angle image with light emitting diode projector array.
Background technology
In recent years, stereo display technique is display planeization one of most important research and development technology afterwards, used by the user under many disclosed three-dimensional monitor situations that but Yu Buxu has worn glasses, and its stereo display principle is for to be divided into visual space a plurality of vertical area and to send two stereopsis to eyes.Then, according to the visual characteristic of human eye, see respectively in eyes and to look the same image content but when having two images of different parallaxes (parallax), the user can feel that the thing of looking has stereovision and depth perception, to experience a three-dimensional space stereopsis.
Fig. 1 is the synoptic diagram of the projection 3 d display device 1 of existing employing space multi-way transfer mode, as shown in Figure 1, the projection 3 d display device 1 of existing employing space multi-way transfer mode comprises a plurality of light sources 11, a plurality of collimation lenses 13, a plurality of convergence lens 14, one liquid crystal panel 15, an a pair of projection face lens board 17 and a scatter plate 19, wherein collimation lens 13 will become directional light from the beam divergence of light source 11 earlier, then again by liquid crystal panel 15 show images, after restrain lens 14 convergence projections and picture is projeced on the biconvex lenticular lens plate 17.Wherein, scatter plate 19 both sides connect biconvex lenticular lens plate 17, and the image scattering is enlarged, and are projected to each visual area of rear of corresponding each pixel again.
In addition, in above-mentioned conventional stereo image display technique, because a projection lens only corresponds to a visual angle, therefore be subjected to the spatial disposition restriction of projection arrangement, the visual angle number that can provide is limited, so resolution is relatively poor.
Fig. 2 is the synoptic diagram of the projection holographic display device of existing employing time domain multiplex pattern.As shown in the figure, this display device 2 comprises a light source 21, a polariscope 23, a polygonal rotating mirror 25, a liquid crystal panel 27 and several optical elements 29.After light source 21 provides light beam, with the light beam polarization, with the light beam after the polygonal rotating mirror 25 reflection polarizations, produce the scanning effect again through polariscope 23.After liquid crystal panel 27 carries out imaging, be projected to viewing area by several follow-up optical elements 29 processing again.Yet, in this kind projection holographic display device,, carry out the mechanical type running owing to adopt polygonal rotating mirror 25, not only rotational speed is limited, structure easily rubs the generation noise, and reliability is also not good.
In view of this, according to above-mentioned prior art, existing no matter the employing separately reaches the stereo display effect with space multi-way transfer mode (spatial multiplex) or time domain multiplex pattern (time multiplex), and the shortcoming of its blemish in an otherwise perfect thing and problem to be overcome are all arranged.Based on this, how to design have simultaneously that processing procedure is simple and easy, the holographic display device of color saturation and resolution advantages of higher, this is the target that this industry is needed effort badly.
Summary of the invention
Be to solve foregoing problems, the object of the present invention is to provide a kind ofly, can integrate advantages such as space multi-way transfer mode and time domain multiplex pattern simultaneously, use and reach the 3-D effect that shows multiple visual angle image in order to show the display device of multiple visual angle image.
For reaching aforementioned purpose, the invention provides a kind of in order to show the display device of multiple visual angle image.Display device comprises a display screen and a plurality of projector.Each projector comprises at least one light source module, a spatial optical modulation element and a camera lens.Each light source module has one first led light source and one second led light source, and wherein, first led light source provides one first light according to one first sequential; Second led light source, adjacent with first led light source, provide one second light according to one second sequential; Spatial optical modulation element in order to first light being converted to one first visual angle image, and is converted to one second visual angle image with second light; Camera lens, with these visual angle image projectings to display screen.The first visual angle image and the second visual angle image that display screen penetrates each projector, by first light and second image formation by rays to, the first sub-ken and the one second sub-ken, a little ken of this of each projector's imaging is sequentially adjacent to each other along an X direction respectively.
The present invention is by aforesaid configuration, make display device can transmit the advantage of (spatialmultiplex) and time domain multiplex (time multiplex) pattern simultaneously in conjunction with space multi-way, reach 3-D effect that shows multiple visual angle image and the apparent brightness that significantly increases display panel but use, the cooperated with LED light source uses and not only significantly reduces projector's volume and power consumption again, also improve resolution, life-span and the degree of stability of projector, directly present preferable stereo display effect by this to user's eye.By this, the present invention just can solve the problem of prior art effectively.
Description of drawings
Behind the embodiment of consulting accompanying drawing and describing subsequently, this technical field has knows that usually the knowledgeable just can understand other purpose of the present invention, and technological means of the present invention and enforcement aspect, wherein:
Fig. 1 is the display device synoptic diagram of existing employing space multi-way transfer mode;
Fig. 2 is the display device synoptic diagram of existing employing time domain multiplex pattern;
Fig. 3 is the configuration skeleton view of the display device of first embodiment of the invention;
Fig. 4 is the synoptic diagram of the display device projector of first embodiment of the invention;
Fig. 5 is the part vertical view of the display device of first embodiment of the invention;
Fig. 6 is the image distribution schematic diagram of the display device of first embodiment of the invention;
Fig. 7 is another enforcement aspect internals synoptic diagram of projector of the present invention;
Fig. 8 is the another enforcement aspect internals synoptic diagram of projector of the present invention;
Fig. 9 is the image distribution schematic diagram that utilizes the projector of Fig. 8; And
Figure 10 is the part vertical view of the display device of second embodiment of the invention.
Embodiment
Below will explain a kind of display device of the present invention by various enforcement aspects.It should be noted that embodiments of the invention are not to need can implement as the described any particular environment of embodiment, application or particular form in order to restriction the present invention.Therefore, only be explaination purpose of the present invention about the explanation of embodiment, but not in order to restriction the present invention.
At first, please refer to Fig. 3, it is the display device 3 configuration skeleton views of first embodiment of the invention.Display device 3 comprises a display screen 31, a plurality of projector 33 and in order to two catoptrons 35 of reflection ray.With regard to space distribution, these projectors 33 are provided with respect to display screen 31 substantially, and along continuous straight runs and vertical direction are extended with array format and arranged.In present embodiment, these projectors 33 have two column arrays in the array of vertical direction, and these projectors 33 take up and down that interlace mode is provided with arrangement, the FOV (Field of View) that adjoins each other and contain projection with complete with the projecting mirror aperture (aperture of the projection lens) of guaranteeing contiguous projector 33.In present embodiment, be to adopt 15 projectors 33, yet this quantity only is used for explanation, knows the enforcement aspect that this technical field person can spread to other number easily.
For the clearer implementation detail of chatting the display device 3 of bright first embodiment of the invention, below the explanation please in the lump with reference to figure 4 to Fig. 6.
Fig. 4 is the internals synoptic diagram of the projector 33 of first embodiment of the invention, as seen from the figure, in the projector 33 of first embodiment of the invention, mainly comprise three light source modules, and close optical element 42, one first lens combination 43, one second lens combination 44, a spatial optical modulation element 45 and a camera lens 47.
Three light source modules comprise first light source module 41, secondary light source module 46 and the 3rd light source module 48.First light source module 41 has one the one adjacent LED (light emitting diode, LED) light source 41a and one second led light source 41b; Secondary light source module 46 has one first adjacent led light source 46a and one second led light source 46b; The 3rd light source module 48 has one first adjacent led light source 48a and one second led light source 48b.
Each light source module is respectively applied for emission one first coloured light, one second coloured light and one the 3rd coloured light; Specifically, first and second led light source 41a, the 41b of first light source module 41 are used to launch first coloured light; First and second led light source 46a, the 46b of secondary light source module 46 are used to launch second coloured light; First and second led light source 48a, the 48b of the 3rd light source module 48 are used to launch the 3rd coloured light.In this embodiment, first coloured light, second coloured light and the 3rd coloured light system are respectively a ruddiness, a green glow and blue light, but the present invention is not as limit.
Each first led light source 41a, 46a, 48a provide one first light according to one first sequential; Each second led light source 41b, 46b, 48b then provide one second light according to one second sequential.Therefore, these light source modules 41,46,48 are that alternately produces 3 first light when first sequential, and are that alternately produces 3 second light when second sequential.It should be noted that, for making the clear and interest of clarity of accompanying drawing, so only illustrate the light path of first, second light of first light source module 41 mode of advancing, the light path of omitting secondary light source module 46 and the 3rd light source module 48 does not illustrate, and should spread to easily yet know this technical field person.
These first light and these second light close light in turn and become the visual angle image in order to subsequent conversion by closing optical element 42.Present embodiment adopts dichroic prism (X-cube) as closing optical element 42, uses redness, green, blue three coloured light are closed light.Implement close optical element and also can be cross spectroscope (X-plate), spectroscope Multiplexing apparatus such as (dichroic Mirror), and the present invention not to be with the above-mentioned limit that is exemplified as in the aspect in other.
By these first light can being converted to one first visual angle image behind first lens combination 43, second lens combination 44 and the spatial optical modulation element 45, and these second light are converted to one second visual angle image behind these first light and these the second light ECDC light; Then, camera lens 47 compiles the first visual angle image and the second visual angle image projecting display screen 31 to projector 33 the place aheads.As described in literal, the first visual angle image and the second visual angle image system adhere to different visual angles separately.In present embodiment, spatial optical modulation element 45 is that (digitalmicromirror device DMD), in other is used, also can adopt liquid crystal indicator (liquid crystaldisplay device, LCD device) to a digital micro-mirror device.
Please refer to Fig. 5, it is the display device 3 part vertical views of first embodiment of the invention.In display device 3, projector 33 is an arrayed, and for ease of explanation, the projector 33 that is positioned at row under the array omits and do not illustrate.
As shown in the figure, display screen 31 comprises a Fresnel lens (Fresnel lens) 51 and one vertical diffusion plate (vertical diffuser) 53.Wherein, Fresnel lens 51 is the light from projector 33 to be carried out complanation focus on; 53 of vertical diffusion plates are in order to spread these first light and these second light in vertical direction, use to enlarge and extend the vertical coverage scope and reduce the uneven phenomenon of light.The projection image of each projector 33, be by display screen 31 imagings to the corresponding ken 52, in other words, 15 projectors 33 of present embodiment will produce 15 kens 52, all kens 52 are to be positioned on the same reference surface 50.
For the clearer image formation state that presents ken district, Fig. 6 illustrates the image distribution situation of display device 3 each ken 52 on reference surface 50.Explain with one of them projector and the pairing Shu ken 52 thereof.The formed first visual angle image 63a of projector and the second visual angle image 63b, these first light and these second light of launching by projector 33 respectively, by display screen 31 one first sub-ken 61a and the one second sub-ken 61b of imagings to this reference surface 50 respectively, each first sub-ken 61a and each second sub-ken 61b promptly form the described ken 52 of Fig. 5.This a little ken that all projectors produce is sequentially adjacent to each other along an X direction, and two visual angle images that belong to the different sub-kens then constitute the show image of a splendid three-dimensional resolution.From in essence, because the visual angle image that each sub-ken presented of each ken is all inequality, when an observer right and left eyes corresponds to two adjacent sub-kens respectively, then can see two different visual angle images, thereby make the observer produce the stereo display image effect by this.It should be noted that above-mentioned display screen 31 also can adopt other optical element with stereo display effect etc. on demand, use the effect of reaching ken regulation and control, so be not limited to aforementioned enforcement aspect.
Present embodiment uses a plurality of led light sources to open and close in regular turn to produce time domain multiplex effect, to use the stereo display effect that the quick conversion that utilizes sequential produces time domain multiplex (time multiplex).In addition, also several projectors by arrayed increase the elasticity that the visual angle is cut apart, and reach the effect of space multi-way transfer mode.
Fig. 7 is another enforcement aspect internals synoptic diagram of projector of the present invention.Projector 7 comprises three light source modules, a spectroscope group 73, one first lens combination 74, one second lens combination 75, a spatial optical modulation element 76, an inner full-reflection prism 77, a camera lens 78 and a radiating module 79.By Fig. 7 and Fig. 4 as can be known, the projector 7 of this enforcement aspect and the projector of first embodiment 33 are different is in set-up mode in light source module.
As shown in the figure, in the projector 7 of this enforcement aspect, three light source modules comprise first light source module 70, secondary light source module 71 and the 3rd light source module 72.First light source module 70 has one first adjacent led light source 70a and one second led light source 70b; Secondary light source module 71 has one first adjacent led light source 71a and one second led light source 71b; The 3rd light source module 72 has one first adjacent led light source 72a and one second led light source 72b.Wherein, first and second led light source 70a, the 70b of first light source module 70, first and second led light source 71a, the 71b of secondary light source module 71, and first and second led light source 72a, the 72b of the 3rd light source module 72 are respectively applied for emission one first coloured light, one second coloured light and one the 3rd coloured light.In this enforcement aspect, first coloured light is red, and second coloured light is green, and the 3rd coloured light is blue (but not as limit).Redness, green, blueness that this enforcement aspect system utilizes spectroscope group 73 that each led light source is launched are closed light, carry out imaging by optical elements such as first lens combination 74, second lens combination 75, spatial optical modulation element 76, full light internal reflection prisms 77 more afterwards, outwards throw image by camera lens 78.
This enforcement aspect is provided with radiating module 79 in addition, radiating module 79 is to see through heat sink (scheming not shown) and each light source module 70,71,72 adjacency, brushes with the but heat of each led light source 70a, 70b, 71a, 71b, 72a and 72b periphery that looses by cooling draught 69.
Please more in the lump with reference to figure 8 and Fig. 9, Fig. 8 is the internals synoptic diagram of the another enforcement aspect of projector of the present invention, and Fig. 9 then utilizes the projector of this aspect in each sub-ken image distribution schematic diagram for display device.
As shown in Figure 8, the projector 8 of this enforcement aspect comprises three light source modules 81,86,88, equally and closes optical element 82, one first lens combination 83, one second lens combination 84, a spatial optical modulation element 85 and a camera lens 87.Yet, comparison diagram 8 and Fig. 4 as can be known, the projector 8 of this enforcement aspect and the projector of first embodiment 33 are different be in, in each light source module 81,86,88 of each projector 8 of this enforcement aspect, have three led light sources.Specifically, first light source module 81 has adjacent first, second and third led light source 81a, 81b, 81c; Secondary light source module 86 has adjacent first, second and third led light source 86a, 86b, 86c; The 3rd light source module 88 has adjacent first, second and third led light source 88a, 88b, 88c.
These light source modules are respectively applied for emission one first coloured light, one second coloured light and one the 3rd coloured light; Specifically, first, second and third led light source 81a, 81b, the 81c of first light source module 81 are used to launch first coloured light; First, second and third led light source 86a of secondary light source module 86,86b, 86c are used to launch second coloured light; First, second and third led light source 88a of the 3rd light source module 88,88b, 88c are used to launch the 3rd coloured light.In this embodiment, first coloured light, second coloured light and the 3rd coloured light system are respectively a ruddiness, a green glow and blue light, but the present invention is not as limit.
Each first led light source 81a, 86a, 88a provide one first light according to one first sequential; Each second led light source 81b, 86b, 88b provide one second light according to one second sequential, and each the 3rd led light source 81c, 86c, 88c then provide one the 3rd light according to one the 3rd sequential.Therefore, these light source modules 81,86,88 are that alternately produces 3 first light when first sequential, are that alternately produces 3 second light when second sequential, and are that alternately produces 3 the 3rd light in the 3rd sequential.It should be noted that, for making the clear and interest of clarity of accompanying drawing, so only illustrate the light path of first, second and third light of first light source module 81 mode of advancing, the light path of omitting secondary light source module 86 and the 3rd light source module 88 does not illustrate, and should spread to easily yet know this technical field person.
Different with Fig. 4 is, after first light, second light and the 3rd light close light, spatial optical modulation element 85 is more in order to being converted to one the 3rd visual angle image with these the 3rd light, camera lens 87 with the 3rd visual angle image projecting to rear display screen (scheming not shown).Similarly, present embodiment and above stated specification components identical and associative operation mechanism are not given unnecessary details in addition at this.It should be noted that the rest may be inferred for the enforcement aspect of projector according to the present invention, can increase the led light source quantity of light source module, to form the corresponding sub-ken of greater number.
As shown in Figure 9, with the 3rd visual angle image 93c imaging to the 3rd sub-ken 91c, the imaging mode of the first visual angle image 93a and the second visual angle image 93b is also ditto described through display screen (scheming not shown) for these the 3rd light.By this, on the first sub-ken 91a, the second sub-ken 91b and the 3rd sub-ken 91c, just present the first visual angle image 93a, the second visual angle image 93b and the 3rd visual angle image 93c respectively, wherein each first sub-ken 91a, each second sub-ken 91b and each the 3rd sub-ken 91c are formed on the reference surface 90.
The second embodiment of the present invention as shown in figure 10, itself and the first embodiment main difference part are, the display screen 101 of display device 10 is to adopt double-deck lens pillar (Double lenticular lens), and double-deck lens pillar has two lens pillar layer 101a, 101b and and is sandwiched in omni-directional diffusion plate (alldirections diffuser) 101c between the lens pillar layer; In two outsides of two lens pillar layer 101a, 101b, one first outside plate 103a and one second outside plate 103b are set respectively.Because present embodiment is by having the omni-directional diffusion plate 101c of omni-directional diffusion function, reference surface 100 can will be projected to from the light of single projector 105, hereat need not projector is carried out arrayed, only, just can reach the effect of time domain multiplex (timemultiplex) with the light source setting of projector inside.
In sum, special integration configuration by aforesaid projector array and display screen, display device of the present invention is essentially the three-dimensional display of a light emitting diode projector array, can transmit the advantage of (spatial multiplex) and time domain multiplex (time multiplex) simultaneously in conjunction with space multi-way, use and reach the 3-D effect that shows multiple visual angle image, and adopt led light source not only significantly to reduce projector's volume and power consumption, also improve the resolution of projector, life-span and degree of stability, by this, the present invention system can solve the problem of prior art effectively.By display device of the present invention, just can present the stereo display image to user's eye with fine resolution.
The above embodiments only are used for exemplifying enforcement aspect of the present invention, and explain technical characterictic of the present invention, are not to be used for limiting category of the present invention.Any be familiar with this operator can unlabored change or the arrangement of the isotropism scope that all belongs to the present invention and advocated, interest field of the present invention should be as the criterion with claim.
Claims (12)
1. one kind in order to show the display device of multiple visual angle image, comprises:
One display screen;
A plurality of projectors, respectively this projector comprises:
At least one light source module has:
One first led light source provides one first light according to one first sequential;
One second led light source, adjacent with this first led light source, provide one second light according to one second sequential,
One spatial optical modulation element in order to this first light is converted to one first visual angle image, and is converted to one second visual angle image with this second light; And
One camera lens, with these visual angle image projectings to this display screen;
Wherein, this display screen is this first visual angle image and this second visual angle image of this projector's ejaculation respectively, by this first light and this second image formation by rays to the one first sub-ken and the one second sub-ken, respectively a little ken of this of this projector's imaging is sequentially adjacent to each other along an X direction respectively.
2. display device according to claim 1 is characterized in that, respectively this first sub-ken is formed on the reference surface with this second sub-ken respectively.
3. display device according to claim 1, it is characterized in that, this at least one light source module also comprises one the 3rd led light source, adjacent with this second led light source, the 3rd led light source provides one the 3rd light according to one the 3rd sequential, this spatial optical modulation element is in order to be converted to the 3rd light one the 3rd visual angle image, and to this display screen, this display screen passes through the 3rd light with imaging to the 3rd sub-ken with the 3rd visual angle image to this camera lens with the 3rd visual angle image projecting.
4. display device according to claim 3 is characterized in that, respectively this first sub-ken, respectively this second sub-ken is formed on the reference surface with the 3rd sub-ken respectively.
5. display device according to claim 1 is characterized in that these projectors are set to an array.
6. display device according to claim 5 is characterized in that this array has two row, and these projectors are crisscross arranged up and down.
7. display device according to claim 1 is characterized in that this display screen comprises a Fresnel lens.
8. display device according to claim 7 is characterized in that, this display screen also comprises a vertical diffusion plate, in order to this first light and this second light in a vertical spread.
9. display device according to claim 1 is characterized in that this display screen comprises the pair of lamina lens pillar, and this bilayer lens pillar has two lens pillar layers and and is sandwiched in omni-directional diffusion plate between these lens pillar layers.
10. display device according to claim 1 is characterized in that respectively this projector comprises three light source modules, and these light source modules are respectively applied for emission one first coloured light, one second coloured light and one the 3rd coloured light.
11. display device according to claim 10 is characterized in that, this first coloured light is red, and this second coloured light is green, and the 3rd coloured light is blue.
12. display device according to claim 1 is characterized in that, this spatial optical modulation element is a digital micro-mirror device or a liquid crystal indicator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010192746.9A CN102262346B (en) | 2010-05-24 | 2010-05-24 | Display apparatus used for displaying multiple perspective images |
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| CN201010192746.9A CN102262346B (en) | 2010-05-24 | 2010-05-24 | Display apparatus used for displaying multiple perspective images |
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| CN102262346B CN102262346B (en) | 2014-02-19 |
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| CN103207511A (en) * | 2012-01-11 | 2013-07-17 | 台达电子工业股份有限公司 | Multi-view stereoscopic display |
| CN103713462A (en) * | 2012-10-09 | 2014-04-09 | 耿征 | True three-dimensional image display system and display method |
| CN103777454A (en) * | 2012-10-25 | 2014-05-07 | 耿征 | True 3D image display system and display method |
| CN104808430A (en) * | 2014-01-27 | 2015-07-29 | 台达电子工业股份有限公司 | Time multitask multi-view projection device |
| US9261703B2 (en) | 2012-01-11 | 2016-02-16 | Delta Electronics, Inc. | Multi-view autostereoscopic display |
| CN105334690A (en) * | 2014-08-14 | 2016-02-17 | 台达电子工业股份有限公司 | Surrounding light field display and operation method thereof |
| CN109601013A (en) * | 2016-07-15 | 2019-04-09 | 光场实验室公司 | The energy relay device of propagation for two dimension, light field and holographic energy and lateral Anderson localization |
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| CN109601013A (en) * | 2016-07-15 | 2019-04-09 | 光场实验室公司 | The energy relay device of propagation for two dimension, light field and holographic energy and lateral Anderson localization |
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| CN102262346B (en) | 2014-02-19 |
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