CN101071535A - Image display device - Google Patents
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- CN101071535A CN101071535A CN 200610081831 CN200610081831A CN101071535A CN 101071535 A CN101071535 A CN 101071535A CN 200610081831 CN200610081831 CN 200610081831 CN 200610081831 A CN200610081831 A CN 200610081831A CN 101071535 A CN101071535 A CN 101071535A
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Abstract
The invention is a video display device, able to display 3D video, and comprising a video display panel, where at least two visual-domain videos of a video series are alternatively displayed; one side of a slot tracking panel close to the video display panel is equipped with multiple parallel strip regions vertically extending; a columnar lens bar is arranged between the video display panel and the slot tracking panel; the columnar lens bar is equipped with multiple parallel lens strips; a lens strip corresponds to a strip group having a fixed number of strip regions; a detection control unit determines the watching positions of the two visual-domain videos and controls each strip region of the slot tracking panel; according to the watching positions, these strip regions of each strip group are at least a first group and a second group, respectively corresponding to the two visual-domain videos to alternatively open and close these strip regions.
Description
Technical field
The invention relates to a kind of automatic holographic display technique, and particularly have the automatic holographic display device that to follow the trail of the user automatically about a kind of.
Background technology
Image is a kind of efficient mode of transmission information.And image is except by the mode that is printed on the paper, and along with the progress of science and technology, a lot of images are to be presented on the display with digital form.Because the display surface of display is constituted a planar structure by cell array, generally do not have the effect of stereo display.
Yet,, when but right and left eyes is watched identical presentation content respectively had two images of different parallaxes, can constitute a stereopsis according to the visual characteristic of human eye.Stereo display technique early is an effect of utilizing polarization, and with two image outputs, and the user puts on the polarization glasses, to cause 3-D effect.This stereo display mode, also inconvenient in the use.Therefore, automatic stereo shows that (Autostereoscopic Display) technology is also actively in development.
The 3D display will become down from generation to generation, and the important development direction of display has been the common recognition of industry.Yet all obstructions are still suffered in popularizing of 3D display technique.Though also exist content shortage and some people because of problem, maximum obstacle remains because the restriction of display technique itself.
One of topmost bottleneck of automatic stereo display technique is the degree of freedom that is to take into account display resolution and viewing location at present.The way of most of technology all is that the pixel on the display is divided into the polycomponent different directions that do not lead, and allows the user see different images from different directions.The group number that divides is many more, and the beholder is free to more move and still can receives the 3D vision.Yet the resolution of picture is also just poor more.
Therefore the manufacturer actively seeks other technical solution, simply to reach the effect of 3D vision.
Summary of the invention
Therefore the invention provides a kind of image display, show a stereopsis, have automatic tracking user's function, needn't reduce image resolution, and keep that the user moves than high-freedom degree.
The invention provides a kind of image display, can watch stereopsis for simultaneously a plurality of users.
The invention provides a kind of image display, have the smooth-going ken to change, mobile the making the mistake or stereopsis that ghost is serious of reducing the user, and the position of following the trail of the user easily.
The invention provides a kind of image display, can install more closely, to reduce volume.
The present invention proposes a kind of image display, changeable demonstration stereopsis and flat image.Image display comprises an image display panel, for a display frame, and Alternation Display at least two ken images under an operating frequency.Two ken images are in order to constitute a stereopsis.Wherein operating frequency is more than at least two times of a vision frequency.This stereopsis can be watched in one first limit of image display panel.One follows the trail of the slit panel, is seated in one second limit of this image display panel.Following the trail of the slit panel has a plurality of strip regions that are arranged in parallel, and those strip regions extend a pixel row direction of this image display panel.One cylindrical lens grid sheet (lenticular plate) is seated between this image display panel and this tracking slit panel.Cylindrical lens grid sheet has a plurality of lens bars that are arranged in parallel, and the strip regions of set following the trail of each fixed number of slit panel is a slat group, of corresponding those lens bars.One detects control module, this stereopsis will be presented at what viewing location in order to decision, and control each those strip regions of this tracking slit panel.Wherein, according to this viewing location, with those strip regions of each those slat group be divided at least one first group with one second group, to should two ken images, alternately those strip regions be opened and are closed respectively.State is opened/closed to one of each those strip regions, by this cylindrical lens grid sheet, behind this image display panel, arrives this viewing location.
Described according to a preferred embodiment of the invention image display, each those strip regions of wherein following the trail of the slit panel comprise an active illuminating assembly, with as showing light emitting source.
Described according to a preferred embodiment of the invention image display, wherein follow the trail of the spatial light modulator that whether to pass through (SLM) of each those strip regions of slit panel for control light, also comprise the back side of a backlight module at this tracking slit panel, to produce a display light source, wherein open/close state, determine whether this display light source passes those strip regions according to this of those strip regions.
Described according to a preferred embodiment of the invention image display, wherein those strip regions of each those slat group are cooked up a plurality of field of view.
Described according to a preferred embodiment of the invention image display, wherein each those field of view comprises at least one this strip regions.
Described according to a preferred embodiment of the invention image display, wherein first group of this of those strip regions of each those slat group is to left eye position and right eye position that should viewing location with this second group, otherwise or.
Described according to a preferred embodiment of the invention image display, wherein this of each those slat group comprises at least one this strip regions for first group, this second group comprises other those strip regions partly.
Described according to a preferred embodiment of the invention image display, wherein when this viewing location moved, this detection control module was controlled this tracking slit panel according to this viewing location after moving.
Described according to a preferred embodiment of the invention image display, wherein as a plurality of beholders during in different this viewing location, this detects control module this first group at those strip regions of each those slat group, also is divided into respectively corresponding those viewing location of group a plurality of times.In addition, wherein each those times group can comprise at least one this strip regions.
Described according to a preferred embodiment of the invention image display, wherein this detection control module can detect whether at least one user appears in this stereo display scope, and this user's position is exactly this viewing location.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 illustrates according to one embodiment of the invention, the last TV structure synoptic diagram of automatic holographic display device.
Fig. 2 illustrates according to one embodiment of the invention, follows the trail of the control principle synoptic diagram of slit panel.
Fig. 3 illustrates according to one embodiment of the invention, as a plurality of beholders' operation chart.
Fig. 4 illustrates according to one embodiment of the invention, another principle of operation synoptic diagram.
Fig. 5 illustrates according to one embodiment of the invention, follows the trail of the structural representation of slit panel.
Fig. 6 is according to one embodiment of the invention, another principle of operation synoptic diagram.
Fig. 7 is according to one embodiment of the invention, and the last TV structure signal icon of another automatic holographic display device is intended to.
The primary clustering symbol description
100: backlight module
102,130,140,160: follow the trail of the slit panel
104: cylindrical lens grid sheet
106: image display panel
108: detect control module
110,110a, 110b, 110c: beholder
112: ken space
114: polaroid
120,122: image display
130a, 142: strip regions
Embodiment
The present invention proposes to utilize the onlooker to follow the trail of (viewer tracking) technology, only two required right and left eyes images of beholder are incident upon the position of beholder's right and left eyes respectively, when beholder's head moves, projected position and then moves, beholder's head can be moved freely, and still keep high resolving power.The present invention utilizes the high speed display device, cooperates the setting of dynamic tracing slit (tracking slit) and cylindrical lens raster sheet (lenticular plate), reaches the target of the tracing type automatic stereo demonstration of full resolution.Below for some embodiment as explanation, but the present invention not only is limited to illustrated embodiment.
Fig. 1 illustrates according to one embodiment of the invention, the last TV structure synoptic diagram of autostereoscopic display apparatus.Display device 120 of the present invention, is that example is done explanation with liquid crystal display (liquid crystal display) technology as the mode of show image, consists essentially of a backlight module 100, and follows the trail of slit panel 102, cylindrical lens grid sheet 104, image display panel (image display panel) 106 and and detect control module (detection and control unit) 108.Beholder 110 can watch the image of image display panel 106 in a viewing location by eyes.Beholder 110 the place aheads have more non-physical kens (view zone) space 112.
The stereo display picture that the present invention will show comprises at least two ken images.With regard to regard to plain mode, display frame can be divided into two ken images, for example distinguish the corresponding left eye ken and the right eye ken, make left eye ken image enter beholder 110 left eye, right eye ken image enters beholder 110 right eye.So, beholder 110 can see stereopsis automatically.Ken image is alternately to be produced according to a sequential by image display panel 106.Considering that the operating frequency of image display panel 106 is wanted at least more than the twice of vision frequency under the visual effect.General vision frequency is at 50Hz～60Hz, is example with 60Hz, then the operating frequency of image display panel 106 want 120Hz or more than.So, left eye ken image and right eye ken image still meet vision frequency 60Hz altogether, can not influence visual effect.At this embodiment, because image display panel 106 is to come show image by lcd technology, backlight module 100 provides needed light source in addition.But,, then do not need backlight module 100 if there is other light source to replace.For example, if follow the trail of slit panel 102, be when being constituted ability with active illuminating by luminescence component, then just do not need backlight module 100.
For left eye ken image and the right eye ken image that image display panel 106 is produced, project beholder 110 left eye and right eye respectively, the present invention proposes to use the integrated operation of following the trail of slit panel 102, cylindrical lens grid sheet 104 and detecting control module 108 to reach.Follow the trail of slit panel 102, be seated in one side of image display panel 106, just the position is between backlight module 100 and image display panel 106.Following the trail of slit panel 102 has a plurality of strip regions that are arranged in parallel, and Fig. 5 can describe in the back.The longitudinally of these strip regions is to extend a pixel row direction of image display panel, just perpendicular to the horizontal direction that is made of eyes.Each strip regions all can be detected control module 108 controls and become out state or close state.Here, open light that the state or the state that closes be meant that backlight module 100 produced can by or do not pass through.If following the trail of slit panel 102 is designs of active illuminating, then holds the state or the state that closes and be meant that these strip regions can send light or not send light.After the action principle that tracking slit panel 102 is produced can be described in.
Then, cylindrical lens raster sheet 104 is seated in and follows the trail of between slit panel 102 and the image display panel 106.Cylindrical lens raster sheet 104 also is to be arranged in parallel by a plurality of lens bars (lenticularbar) to form, and Fig. 1 is that example is done explanation with two lens bars only.The bearing of trend of lens bar is identical with the bearing of trend of the strip regions of following the trail of slit panel 102.In addition, the strip regions of the corresponding fixed number of each lens bar meeting.Describe for convenient, be called a slat group again, be configured to a corresponding lens bar.For the number of reality, for example cylindrical lens raster sheet 104 has 100 lens bars.And for example fruit one slat group has 20 strip regions, then follows the trail of slit panel 102 sums and has 2000 strip regions.The strip regions quantity of slat group is relevant with beholder 110 degree of freedom, just the dimension that for example allows beholder 110 to have 20 visual angles to move.In addition, each strip regions of tracking slit panel 102 for example is the spatial light modulator that whether passes through (SLM) of control light.Yet spatial light modulator only is an embodiment, and other has equal function, can control to make light also can be used for constituting by the assembly that whether waits or structure to follow the trail of slit panel 102.
The lens bar of cylindrical lens raster sheet 104 is suitable for will be from following the trail of the light that slit panel 102 sends, project image display panel 106, make the ken image of image display panel 106 can allow beholder 110 eyes, the image of watching different sequential to show in the suitable ken.Because the effect of persistence of vision though left eye ken image and right eye ken image are successively to enter left eye and right eye, can produce a stereopsis after overlapping.
Have a ken space 112 of expectation in the place ahead of display device 120.In Fig. 1, to follow the trail of in the slit panel 102, state is opened in the representative of the strip regions of white, and its light that passes through can enter the position in the ken space 112 by each lens bar of cylindrical lens raster sheet 104, and it for example is the position of corresponding right eye.Simultaneously, image display panel 106 shows the image that belongs to the right eye ken.Next, follow the trail of in the slit panel 102, former bar zone of opening under the state becomes off status, bar zone under the former off status becomes out state, holding the light that the strip regions under the state passes through can be by each lens bar of cylindrical lens raster sheet 104, enter in the ken space 112 except that preceding light in a flash and reach other position the position, it for example is other position that is equivalent to outside the right eye position, and beholder's left eye can receive this light.Simultaneously, 106 demonstrations of image display panel belong to the image of the left eye ken.
Whether detect control module 108, can detect has a beholder 110 to enter one to watch scope, whether stereopsis will be presented at viewing location with decision.In addition, detect control module 108 and also control each strip regions of following the trail of slit panel 102.According to this viewing location, with the strip regions of each slat group be divided at least one first group with one second group, two ken images of corresponding eyes are alternately opened those strip regions and close respectively.
To better simply arrangement and at the embodiment that a beholder 110 is only arranged, can be simply the strip regions of slat group be divided into two groups.Fig. 2 illustrates according to one embodiment of the invention, follows the trail of the control principle synoptic diagram of slit panel 102.Consult Fig. 1 and Fig. 2, right eye ken image is for example only provided by the light source of a strip regions in a slat group of correspondence, and another eye, and left eye for example then can be used as the strip regions of other parts another and organize and control.At the left figure of Fig. 2, for example be light source to left eye, right figure is the light source to right eye.In the light source of left eye, though most strip regions all is opened, in fact can enter the strip regions of left eye, mainly be that the light that other strip regions is sent can not enter left eye in fact adjacent to a strip regions that belongs to the right eye ken.Yet the control of this kind mode is comparatively easy.If taking left eye ken image and right eye ken image all is that it also is feasible by the light generation of a strip regions, just control is comparatively complicated.Which kind of mode the present invention is not restricted to.In other words, according to the variation of working control, the strip regions of slat group can be divided at least two groups and control.
After detection control module 108 detects beholder 110 viewing location,, strip regions is divided into corresponding two groups, alternately opens and closes with a sequential respectively again according to the left eye and the right eye position that configure.For detecting control module 108 and the actual design of following the trail of slit panel 102, be general insider, can design according to described principle and reach.
In addition, if beholder 110 is in the distance, do not belong to the stereopsis indication range, again or the beholder in the stereopsis indication range 110 is only will watch flat image the time, display device 120 can switch to plane (2D) image and show.For example left eye ken image or right eye ken image can be regarded a flat image.In this situation, whole strip regions of following the trail of slit panel 102 are kept out state together.For example, show left eye ken image, follow the trail of whole strip regions of slit panel 102 and open together that so left eye ken image is exactly a flat image at image display panel 106.In addition, on the contrary use right-eye image also can.
Under the basic structure according to Fig. 1, can continue to add the function of demonstration.Fig. 3 illustrates according to one embodiment of the invention, as a plurality of beholders' operation chart.Consult Fig. 3, when display device 120 a plurality of beholder 110a are arranged, when 110b, 110c watch stereopsis simultaneously, every beholder by detecting control module 108, follows the trail of slit panel 102 according to identical principle control.At this moment, be example with the situation of three beholder 110a, 110b, 110c, in a plurality of strip regions of a slat group of a corresponding lens bar, have the right eye of three slats corresponding three beholder 110a, 110b, 110c, open simultaneously.Other strip regions then belongs to the ken of left eye.Therefore, display device 120 of the present invention has a plurality of people of being fit to watch stereopsis.
In addition, if beholder 110 can be mobile the time, also can be by detecting the viewing location that control module 108 detect beholder 110 at any time, decision at any time belongs to the strip regions of the right eye ken.Fig. 4 illustrates according to another principle of operation synoptic diagram of one embodiment of the invention.Consult Fig. 4, for a slat group 130 of a lens bar 104, a position of its a glance of eyes of the corresponding beholder of for example at least one strip regions 130a, for example right eye position.When the beholder when on one side mobile, as shown by arrows, strip regions 130a can move along with the beholder, wherein moving with next strip regions preferably.So, display device 120 can be followed the trail of beholder's position and be done variation, reaches to follow the trail of the effect that shows.
In addition, because the beholder can move, if strip regions 130a is single, then following the trail of quality may be relatively poor.In order to increase the tracking quality, for example to show the light source that belongs to the right eye ken, needn't limit by single strip regions and send, and can provide light source by a plurality of thinner strip regions, increasing mobile smoothness, the width summation of the strip regions that these are thinner and have only the width of single strip regions suitable.Fig. 4 carries out with the control mode that three strip regions are a unit.
Fig. 5 illustrates according to one embodiment of the invention, follows the trail of the structural representation of slit panel.Consult Fig. 5, following the trail of slit panel 140 is floor map of the tracking slit panel 102 of Fig. 1.Follow the trail of slit panel 140 and be by many strip regions 142 institute that is arranged in parallel and constitute.If when following the trail of slit panel 140 and be not luminescent designs, each strip regions 142 can be unlocked or close, display light is passed through or do not pass through.In addition, be by luminescence component if follow the trail of the strip regions 142 of slit panel 140, for example light emitting diode (LED) etc. is formed, and it is luminous then can directly to control strip regions 142.
Fig. 6 illustrates according to one embodiment of the invention, another principle of operation synoptic diagram.Consult Fig. 6, the design of image display 122 and aforesaid image display 120 are similar, and its difference is to follow the trail of the slit panel 102 slat components in each lens bar correspondence to become more than two groups, for example four groups, it is the demonstration that cooperates image display panel 106 twices above, and for example four times show fast.In addition, as display device 122 can alternately produce two images more than the ken in regular turn as display panel 106, four ken images for example are 112 watch for beholder 110 in ken space.At this moment, when beholder 110 eyes are in the different ken, can watch stereopsis.Among Fig. 6, a ken is provided by the display light that two slat districts are produced.As for, the control principle that multidigit beholder or beholder move is still the same, suitably combination.
Need further control and the local following description of adjusting for Fig. 6.The operating frequency of picture display panel 106 will suitably improve if necessary, for example is the several times (as 240Hz) of vision frequency, to enable under the frequency of for example 60Hz, shows the image that belongs to a plurality of kens.With the embodiment of Fig. 6, for example there is the image of four kens to show, its display timing generator is the sequential relationship in the square of bottom right for example.In time, show the ken image of four correspondences at t1, t2, t3, t4 respectively, when beholder's eyes are in the different ken, just can produce relief effect.So,, or in following the trail of the process that moves, all can keep preferred effect, reduce the burden of tracking function even tracking error is big slightly.
Fig. 7 is according to one embodiment of the invention, the last TV structure synoptic diagram of another automatic holographic display device.Participate in Fig. 7, the image display of present embodiment, similar haply with the structure of Fig. 1, and difference therebetween is the change design of light emitting source.According to identical displaying principle, following the trail of slit panel 160 is designs of active illuminating, does not therefore need backlight module.Be still the same as for the control of following the trail of slit panel 160.Among the figure, luminous strip regions for example is corresponding beholder's a right eye, and other strip regions partly then belongs to the left eye ken.The strip regions of active illuminating can be made up of luminescence component, for example is light emitting diode (Light emitting diode, LED), and for example be Organic Light Emitting Diode (organic LED, OLED) with polymeric light-emitting diodes (polymer LED, PLED).Luminescence component can be the luminescence component of other kind also, does not enumerate one by one.
Image display of the present invention, mainly the structure according to Fig. 1 be the basis, and different modification variations is arranged, as Fig. 2～shown in Figure 7.Be noted that the present invention be not restricted to for embodiment, also be not restricted to the structure of indivedual embodiment.In other words, the present invention can be also according to for embodiment, in response to actual needs, get its suitable part do in conjunction with and variation.
In sum, utilize the control of following the trail of the slit panel, cooperate, show the image of the corresponding ken according to a sequential as display panel in the present invention.Beholder's number does not limit a people, and can follow the trail of beholder's position when the beholder moves yet.Utilize a plurality of strip regions and a plurality of ken image, can make and follow the trail of easily and follow the trail of quality-smoothing.In addition, because the present invention only needs to stick on the lens pillar grid sheet of image panel rear side and follow the trail of the slit panel, make whole volume also can reduce.
Though the present invention with preferred embodiment openly as above; right its is not in order to qualification the present invention, any insider, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (17)
1. image display, changeable demonstration stereopsis and flat image comprise:
One image display panel, for a display frame, Alternation Display at least two ken images under an operating frequency, two ken images are in order to constitute a stereopsis, wherein this operating frequency is more than at least two times of a vision frequency, one first limit of this image display panel has at least one viewing location can watch this stereopsis;
One follows the trail of the slit panel, is seated in one second limit of this image display panel, and wherein this tracking slit panel has a plurality of strip regions that are arranged in parallel, and those strip regions extend a pixel row direction of this image display panel;
One cylindrical lens grid sheet, be seated between this image display panel and this tracking slit panel, wherein this cylindrical lens grid sheet has a plurality of lens bars that are arranged in parallel, and those strip regions of setting each fixed number of this tracking slit panel are a slat group, of corresponding those lens bars; And
One detects control module, whether decision will be presented at this stereopsis this viewing location, and control each those strip regions of this tracking slit panel, wherein according to this viewing location, those strip regions of each those slat group are divided into one first group and one second group at least, to should two ken images, alternately those strip regions be opened and closed respectively
Wherein one of each those strip regions open/close state,, behind this image display panel, arrive this viewing location by this cylindrical lens grid sheet.
2. image display according to claim 1, wherein each those strip regions of this tracking slit panel comprise an active illuminating assembly, with as showing light emitting source.
3. image display according to claim 1, also comprise the back side of a backlight module at this tracking slit panel, to produce a display light source, wherein open/close state according to this of those strip regions, determine whether this display light source passes those strip regions.
4. image display according to claim 1, wherein those strip regions of each those slat group are cooked up a plurality of field of view.
5. image display according to claim 4, wherein each those field of view comprises at least one this strip regions.
6. image display according to claim 1, wherein first group of this of those strip regions of each those slat group is to left eye position and right eye position that should viewing location with this second group, otherwise or.
7. image display according to claim 1, wherein this of each those slat group comprises at least one this strip regions for first group, this second group comprises other those strip regions partly.
8. image display according to claim 1, wherein when this viewing location moved, this detection control module was controlled this tracking slit panel according to this viewing location after moving.
9. image display according to claim 1, wherein when a plurality of this viewing location, this detects control module this first group at those strip regions of each those slat group, also is divided into respectively corresponding those viewing location of group a plurality of times.
10. image display according to claim 9, wherein each those times group comprises at least one this strip regions.
11. image display according to claim 1, wherein can produce between this two image of 3-D effect has a parallax.
12. image display according to claim 1, wherein this detection control module can detect whether at least one user appears in this stereo display scope, and this user's position is exactly this viewing location.
13. image display according to claim 1, wherein this detection control module cooperates those ken images, control the corresponding branch other this of those strip regions of this tracking slit panel and open/close state,, produce those ken images with to this identical viewing location.
14. image display according to claim 13 wherein also comprises the back side of a backlight module at this tracking slit panel, to produce a display light source.
15. image display according to claim 13, the wherein corresponding at least one strip regions of each those ken image.
16. image display according to claim 13, when wherein this viewing location moved, this detection control module was controlled this tracking slit panel according to this viewing location after moving.
17. image display according to claim 1, wherein this image display panel is a display panels.
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| CNB2006100818311A CN100481161C (en) | 2006-05-12 | 2006-05-12 | Image display device |
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| CN102740104A (en) * | 2012-06-04 | 2012-10-17 | 深圳超多维光电子有限公司 | Three-dimensional display control method and corresponding device and equipment |
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| CN102782743A (en) * | 2010-07-09 | 2012-11-14 | 普雷有限公司 | Improved lenticular illumination device |
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| CN102902068A (en) * | 2011-07-29 | 2013-01-30 | 艺创有限公司 | Three-dimensional stereo display device |
| CN103176277A (en) * | 2011-12-21 | 2013-06-26 | 财团法人工业技术研究院 | Hybrid multiplexed 3D display and displaying method thereof |
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| CN102682674A (en) * | 2012-05-28 | 2012-09-19 | 北京理工大学 | High-brightness naked-eye three-dimensional (3D) display screen based on organic light-emitting diode (OLED)-LED |
| CN102682674B (en) * | 2012-05-28 | 2014-11-26 | 北京理工大学 | High-brightness naked-eye three-dimensional (3D) display screen based on organic light-emitting diode (OLED)-LED |
| CN102740104A (en) * | 2012-06-04 | 2012-10-17 | 深圳超多维光电子有限公司 | Three-dimensional display control method and corresponding device and equipment |
| CN102740104B (en) * | 2012-06-04 | 2015-04-15 | 深圳超多维光电子有限公司 | Three-dimensional display control method and corresponding device and equipment |
| CN104181696A (en) * | 2013-05-21 | 2014-12-03 | 瀚宇彩晶股份有限公司 | Display device |
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