CN102520900B - Multilayer display device and display control method thereof - Google Patents
Multilayer display device and display control method thereof Download PDFInfo
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- CN102520900B CN102520900B CN201110429683.9A CN201110429683A CN102520900B CN 102520900 B CN102520900 B CN 102520900B CN 201110429683 A CN201110429683 A CN 201110429683A CN 102520900 B CN102520900 B CN 102520900B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 140
- 230000005684 electric field Effects 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The invention discloses a multilayer display device and a display control method thereof. The multilayer display device comprises a liquid crystal display device, a projection display device and a projector, wherein the projector is arranged on the back side of the liquid crystal display device, and the projection display device is arranged on the surface of the liquid crystal display device. By arranging the liquid crystal display device, the projection display device and one projector, the multilayer display device achieves two-layer image display effect. Compared with the prior art, hardware cost is saved. Compared with a multilayer display device with two projectors, the multilayer display device is more environment-friendly.
Description
Technical field
The present invention relates to electronic display technology field, in particular a kind of multilayer display device and display control method thereof.
Background technology
The display technique of flat image is increasingly ultimate attainment, and the indexs such as display brightness, contrast, resolution, color have had and significantly promote.
Microsoft proposes a kind of novel man-machine interaction display technique in patent US2009/0219253, concrete sees shown in accompanying drawing 1, the switching diffusion layer (switchable diffusing layer) 104 of mesomorphic state is possessed by two projector (102 and 103) and one piece, and the additional effect touching Implement of Function Module and show image on two-layer different carrier.But the Multi-level display structure of the prior art shown in Fig. 1, need the Multi-level display device that two projector (as shown in Figure 1 102 and 103) realize, cost cannot reduce, and adopts two projector to realize being unfavorable for economize on electricity and environmental protection.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of multilayer display device and display control method thereof, and its structure is simple, realizes easily, and decreases hardware device, reduce hardware cost, is beneficial to economize on electricity and environmental protection.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of multilayer display device, wherein, comprising:
For display video image, and possess through the liquid crystal indicator with cut-off two kinds of path channels states;
For projecting through described liquid crystal indicator seizure and the projection display equipment of the projected image be associated with described video image according to the Projection Display caught;
And, for providing backlight signal for described liquid crystal indicator or for providing the projector of projection source picture signal for described projection display equipment;
Described projector is arranged on the back side of described liquid crystal indicator, and described projection display equipment is arranged on the surface of described liquid crystal indicator.
Described multilayer display device, wherein, it also comprises a computer apparatus be connected with described liquid crystal indicator, projector respectively, be used on the one hand providing 120Hz signal to projector, wherein 60Hz is as the picture catching signal of projection display equipment, and provides the backlight of white field signal as liquid crystal indicator of 60Hz in addition; Be used for the image display signal that 120Hz is provided to liquid crystal indicator on the other hand.
Described multilayer display device, wherein, its also comprise one be arranged on below liquid crystal indicator, for obtaining the position sensor of projection display equipment position.
Described multilayer display device, wherein, described projector is arranged on the below of described liquid crystal indicator;
Described projection display equipment is removably set on liquid crystal display surface, and the size of described projection display equipment is less than the size of described liquid crystal indicator.
Described multilayer display device, wherein, described liquid crystal indicator comprises polaroid, lower polaroid, and is arranged on the layer of liquid crystal molecule between polaroid, lower polaroid.
Described multilayer display device, wherein, described projection display equipment is transparent plastic film or rear-projection curtain.
Described multilayer display device, wherein, also comprises the backlight arrangement be arranged on below described liquid crystal indicator.
Described multilayer display device, wherein, it also comprises a two-way mirror, for the projection light source of described projector is reflexed to described liquid crystal indicator.
Based on a display control method for multilayer display device described above, wherein, step is comprised:
A, when need by described liquid crystal indicator display video image signal time, controlling computer apparatus provides white field signal as the backlight signal of liquid crystal indicator to projector, to be powered up to liquid crystal indicator by computer apparatus simultaneously and provide image display signal, then described liquid crystal indicator display video image;
B, when the projected image that need be associated with described video image by described projection display equipment Projection Display, control computer apparatus to stop providing image display signal to liquid crystal indicator, and the electric field controlling liquid crystal indicator be in close light path be in through state, thered is provided the projection source picture signal be associated with described video image to projector by computer apparatus, projection display equipment catches projection through described liquid crystal indicator and the projected image be associated with described video image according to the Projection Display caught simultaneously.
The display control method of described multilayer display device, wherein,
Described step B also comprises: when projection display equipment moves above liquid crystal indicator, the particular location of projection display equipment is obtained by a position sensor be arranged on below liquid crystal indicator, according to the particular location of this acquisition, provided the projected image be associated with liquid crystal indicator corresponding position to projector by computer apparatus.
Multilayer display device provided by the present invention and display control method thereof, two-layer image display effect can be realized by arranging liquid crystal indicator, projection display equipment and a projector, compared with prior art, save hardware cost, and compared to the Multi-level display device of two projector, Multi-level display technique device of the present invention more economizes on electricity and environmental protection.
Accompanying drawing explanation
Fig. 1 is the novel multi-layer display device structural representation of prior art.
Fig. 2 is the structural representation of multilayer display device first embodiment of the present invention.
Fig. 3 is the structural representation of multilayer display device second embodiment of the present invention.
Fig. 4 is the partial structurtes schematic diagram of multilayer display device of the present invention 3rd embodiment.
Fig. 5 is the display control method process flow diagram of multilayer display device embodiment of the present invention.
Embodiment
Multilayer display device provided by the present invention and display control method thereof, for making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of multilayer display device of this embodiment, as shown in Figure 2, mainly comprise: projector 100, liquid crystal indicator 200 and projection display equipment 300, liquid crystal indicator 200 can be interpreted as the first display layer, projection display equipment 300 is interpreted as the second display layer.
The both sides that described projection display equipment 300 is relative with projector 100 position, be separately positioned on described liquid crystal indicator 200, and the position of described projection display equipment 300 is arranged in the drop shadow spread of described projector 100.As shown in Figure 2, described projector 100 is arranged on the below of described liquid crystal indicator 200, the display surface that the image projected with projector 100 projects liquid crystal indicator 200 is completely as the criterion, preferably projector 100 is arranged on immediately below liquid crystal indicator 200; Described projection display equipment 300 is removably set on the top of liquid crystal indicator 200, and the size of described projection display equipment 300 is less than the size of described liquid crystal indicator 200.
Wherein, described liquid crystal indicator 200 for display video image, and possess through with cut-off two kinds of path channels states.Described projection display equipment 300 is for catching projection through described liquid crystal indicator 200 and the projected image be associated with described video image according to the Projection Display caught.
Described projector 100 is for providing backlight signal or for providing projection source picture signal for described projection display equipment for described liquid crystal indicator.
Preferably, described liquid crystal indicator 200 can be LCDs, and described projection display equipment 300 can for the display base material for catching projection.Concretely, with reference to figure 2, image and video data be display on the projection display equipment 300 of liquid crystal indicator 200 with seizure projection respectively, shown content possesses relevance, such as, on liquid crystal indicator 200, display is general image, and on projection display equipment 300 display be partial enlargement in LCDs general image or associated picture and video.
The picture catching base material of projection display equipment 300 of the present invention can be transparent grog film, and may also be rear-projection curtain etc. can the base material of load image display.The size of projection display equipment 300 is less than the size of ground floor liquid crystal indicator 200 in principle, and can in officely be intended to move above liquid crystal indicator 200, and its fundamental purpose is at the different image of different position display.
Further, as shown in Figure 2, described multilayer display device, it also comprises a computer apparatus 101 be connected with described liquid crystal indicator 200, projector 100 respectively, this computer apparatus 101 1 aspect is used for providing 120Hz signal to projector, wherein 60Hz is as the picture catching signal of projection display equipment, and provides the backlight of white field signal as liquid crystal indicator of 60Hz in addition; Be used for the image display signal that 120Hz is provided to liquid crystal indicator on the other hand.
Projector 100 described in the embodiment of the present invention possesses the refreshing frequency of 120Hz or higher, the external computer apparatus 101 of projector, wherein provide the video of 60Hz and picture signal as the display image of projection display equipment 300, in addition, there is provided the white field signal of 60Hz as the backlight of the first display layer liquid crystal indicator 200, projector 100 can be positioned over position immediately below liquid crystal indicator 200 shown in Fig. 2, regulates projector focal length, makes image in projection display equipment 300 position imaging.
In order to display of video content on liquid crystal indicator 200 more clearly, the backlight arrangement 302 be connected with computer apparatus 101 can be placed separately in the below of liquid crystal indicator 200, as light sources such as CCFL fluorescent tube, LED, control this backlight arrangement 302 by computer apparatus 101 luminous.
As shown in Figure 2, first display layer and liquid crystal indicator 200 form primarily of upper polaroid 203, lower polaroid 201 and the layer of liquid crystal molecule 202 be arranged between upper polaroid 203, lower polaroid 201, and liquid crystal indicator 200 provides independently image/video information.
The first display layer described in the embodiment of the present invention and liquid crystal indicator 200 possess through with cut-off two kinds of path channels states, when layer of liquid crystal molecule 202 is in powering state, due to electric field action, liquid crystal molecule in layer of liquid crystal molecule is regularly arranged, light is due to the effect of upper and lower polaroid, and liquid crystal indicator 200 is in light ray cut state; When liquid crystal molecule be in not powering state time, liquid crystal molecule twists, and light is due to the effect of upper and lower polaroid, and liquid crystal indicator 200 is in light therethrough state.
Described multilayer display device, wherein, its also comprise one be arranged on below liquid crystal indicator, for obtaining the position sensor of projection display equipment position.
Second display layer of the present invention and projection display equipment 300, referred to and to be obtained by the image of projector 100 permeate crystal device 200 by the picture catching material of projection display equipment 300.As shown in Figure 2, correlativity is possessed due to the first display layer in the embodiment of the present invention and liquid crystal indicator 200 displaying contents and the second display layer and projection display equipment 300 displaying contents, can below liquid crystal indicator 200 placement location inductor 301, this position sensor 301 is connected with computer apparatus 101, when above projection display equipment 300 is placed on liquid crystal indicator 200, the particular location of projection display equipment 300 can be read by this position sensor 301, according to relevant position, there is provided the image or video that are associated with liquid crystal indicator 200 corresponding position to projector 100 by computer apparatus 101.
Multilayer display device of the present invention, for Fig. 2, its principle of work process can specifically be expressed as follows: provide the signal of 120Hz to projector 100 by computer apparatus 101, wherein 60Hz is as the picture catching signal of projection display equipment 300, and provides the white field signal of 60Hz as the backlight of the first display layer liquid crystal indicator 200 in addition.
When computer apparatus 101 provides the image display signal of 60Hz to projector 100, the liquid crystal indicator 200 controlling the first display layer is in off(at electric field and closes) even if state liquid crystal indicator 200 is in light path through state, now by computer apparatus 101 be supplied to image light shown by projector 100 from described liquid crystal indicator 200 through, be irradiated to imaging on the projection display equipment 300 for projecting to picture catching, now, control computer apparatus 101 and do not provide image display signal to liquid crystal indicator 200.
When computer apparatus 101 provides the white field signal of other 60Hz to projector 100, the light that projector 100 now sends is as the backlight of liquid crystal indicator 200, there is provided the image display signal of 60Hz to liquid crystal indicator 200 by computer apparatus 101 simultaneously, now, liquid crystal indicator 200 just can demonstrate corresponding video or image.Thus, supplied by the signal of high refreshing frequency, by sequential control mode, the white field signal of 60Hz and the image display signal intersection of 60Hz are supplied to projector 100, and human eye can at the liquid crystal indicator 200 of the first display layer with for the projection display equipment 300 of picture catching sees different images or video information.
Embodiment further, as shown in Figure 3, described projector 100 also can be placed on the position shown in Fig. 3, reflex on liquid crystal indicator 200 by two-way mirror 102, the position of projector 100 arranges on display surface that the image projected with projector 100 equally projects liquid crystal indicator 200 completely and is as the criterion.Similarly, provide the video of 60Hz and picture signal as the display image of projection display equipment 300.
The principle of work of Fig. 3 embodiment is: by two-way mirror 102 by the upper area of the reflected incident light of projector 100 to liquid crystal indicator 200 place, there is provided 120Hz signal to projector 100 by computer apparatus 101, wherein 60Hz is as the picture catching signal of projection display equipment 300, and provides the backlight of white field signal as liquid crystal indicator 200 of 60Hz in addition.
When need by described liquid crystal indicator 200 display video image signal time, controlling computer apparatus 101 provides the white field signal of other 60Hz to projector 100, to be sent the backlight of white light signal as described liquid crystal indicator 200 by projector 100, power up the image display signal providing 60Hz to liquid crystal indicator 200 by computer apparatus 101 simultaneously, ground floor liquid crystal indicator 200 just can see display image.
When the projected image that need be associated with described video or image by described projection display equipment 300 Projection Display, control computer apparatus 101 when providing the image display signal of 60Hz to projector 100, liquid crystal indicator 200 need be controlled and be in off(closedown at electric field) even if state liquid crystal indicator 200 is in light path through state, then now, computer apparatus 101 be supplied to image light shown by projector 100 from described liquid crystal indicator 200 through, be irradiated to imaging on the projection display equipment 300 for catching projected image, now, computer apparatus 101 need be controlled stop providing image display signal to liquid crystal indicator 200.
Therefore supplied by the signal of high refreshing frequency in the embodiment of the present invention, by sequential control mode, its control mode is identical with Fig. 2 embodiment, human eye can see different image informations on ground floor liquid crystal indicator 200 and picture catching base material.
For example, with reference to figure 2, assuming that the image that computer apparatus 101 outputs to liquid crystal indicator 200 is picture 1, projection display equipment 300 is placed on the top position of liquid crystal indicator 200, position sensor 301 below liquid crystal indicator 200 confirms the position coordinates of projection display equipment 300, and feedback to the computer device 101, thus the picture 1 that computer apparatus 101 shows according to liquid crystal indicator 200, output to projector 100 display frame 2, picture 1 and picture 2 can possess relevance, such as, what picture 1 showed is human body, the skeletal graph at the corresponding position of human body place that picture 2 shows.
Therefore multilayer display device provided by the invention, utilizes a projector and one piece of liquid crystal indicator, one piece of projection display equipment to realize Multi-level display content, reduce hardware cost, improve the relevance display of multi-layer image.
Embodiment further, multilayer display device of the present invention, large scale display can be extended for, can large scale display and multiple relevance Multi-level display in adopt multiple stage projector, the region that every platform projector projects is different, specifically can show with reference to figure 4, below one piece of large-sized liquid crystal indicator 200a, multiple stage projector (the first projector 100a is as shown in Figure 4 set by a preset distance, second projector 100b, 3rd projector 100c, 4th projector 100d), and above this large-sized liquid crystal indicator 200a, corresponding described first projector 100a respectively, second projector 100b, 3rd projector 100c, the position of the 4th projector 100d is provided with the first projection display equipment 300a, second projection display equipment 300b, 3rd projection display equipment 300c, 4th projection display equipment 300d.And be provided with in the position of the below correspondence of this large-sized liquid crystal indicator 200a and be respectively used to acquisition first projection display equipment 300a, the second projection display equipment 300b, the 3rd projection display equipment 300c, the primary importance inductor 301a of the 4th projection display equipment 300d position, second place inductor 301b, the 3rd position sensor 301c, the 4th position sensor 301d.The principle of work of the embodiment shown in its principle of work and Fig. 2 is similar, therefore does not repeat them here.
In order to improve the characteristic of man-machine interaction further, exchanging of user and computing machine plane is improved by multiple point touching, multilayer display device of the present invention can adopt the LCDs possessing multi-touch function as liquid crystal indicator 200 carrier, such as can on liquid crystal indicator 200 loading capacitance formula, resistance-type multi touch screen, for large scale display also can adopt the technology such as infrared induction touch-screen, laser plane multiple point touching.
Based on above-described embodiment, the embodiment of the present invention additionally provides a kind of display control method based on multilayer display device described above, as shown in Figure 5, mainly comprises the following steps:
Step S810, when need by described liquid crystal indicator display video image signal time, controlling computer apparatus provides white field signal as the backlight signal of liquid crystal indicator to projector, to be powered up to liquid crystal indicator by computer apparatus simultaneously and provide image display signal, then described liquid crystal indicator display video image; As detailed above.
Step S820, when the projected image that need be associated with described video image by described projection display equipment Projection Display, control computer apparatus to stop providing image display signal to liquid crystal indicator, and the electric field controlling liquid crystal indicator be in close light path be in through state, thered is provided the projection source picture signal be associated with described video image to projector by computer apparatus, projection display equipment catches projection through described liquid crystal indicator and the projected image be associated with described video image according to the Projection Display caught simultaneously; As detailed above.
The display control method of described multilayer display device, wherein, when projection display equipment moves above liquid crystal indicator, the particular location of projection display equipment is obtained by a position sensor be arranged on below liquid crystal indicator, according to the particular location of this acquisition, provided the projected image be associated with liquid crystal indicator corresponding position to projector by computer apparatus; As detailed above.
In sum, multilayer display device provided by the present invention and display control method thereof, two-layer image display effect can be realized by arranging liquid crystal indicator, projection display equipment and a projector, compared with prior art, save hardware cost, and compared to the Multi-level display device of two projector, Multi-level display technique device of the present invention more economizes on electricity and environmental protection.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. a multilayer display device, is characterized in that, comprising:
For display video image, and possess through the liquid crystal indicator with cut-off two kinds of path channels states;
For projecting through described liquid crystal indicator seizure and the projection display equipment of the projected image be associated with described video image according to the Projection Display caught;
And, for providing backlight signal for described liquid crystal indicator or for providing the projector of projection source picture signal for described projection display equipment;
The both sides that described projection display equipment is relative with projector position, be separately positioned on described liquid crystal indicator, and the position of described projection display equipment is arranged in the drop shadow spread of described projector;
Described multilayer display device also comprises a computer apparatus be connected with described liquid crystal indicator, projector respectively, described computer apparatus provides white field signal as the backlight signal of liquid crystal indicator to projector on the one hand, to be powered up to liquid crystal indicator by described computer apparatus simultaneously and provide image display signal, computer apparatus provides projection source picture signal to projector on the other hand.
2. multilayer display device according to claim 1, it is characterized in that, described computer apparatus provides 120Hz signal to projector, and wherein 60Hz is as the picture catching signal of projection display equipment, and provides the backlight of white field signal as liquid crystal indicator of 60Hz in addition; Return the image display signal that liquid crystal indicator provides 120Hz.
3. multilayer display device according to claim 1, is characterized in that, its also comprise one be arranged on below liquid crystal indicator, for obtaining the position sensor of projection display equipment position.
4. multilayer display device according to claim 1, is characterized in that, described projector is arranged on the below of described liquid crystal indicator;
Described projection display equipment is removably set on liquid crystal indicator top, and the size of described projection display equipment is less than the size of described liquid crystal indicator.
5. multilayer display device according to claim 1, is characterized in that, described liquid crystal indicator comprises polaroid, lower polaroid, and is arranged on the layer of liquid crystal molecule between polaroid, lower polaroid.
6. multilayer display device according to claim 1, is characterized in that, described projection display equipment is transparent plastic film or rear-projection curtain.
7. multilayer display device according to claim 1, is characterized in that, also comprises the backlight arrangement be arranged on below described liquid crystal indicator.
8. multilayer display device according to claim 1, is characterized in that, it also comprises a two-way mirror, for the projection light source of described projector is reflexed to described liquid crystal indicator.
9., based on a display control method for multilayer display device described in any one of claim 1-8, it is characterized in that, comprise step:
A, when need by described liquid crystal indicator display video image signal time, controlling computer apparatus provides white field signal as the backlight signal of liquid crystal indicator to projector, to be powered up to liquid crystal indicator by computer apparatus simultaneously and provide image display signal, then described liquid crystal indicator display video image;
B, when the projected image that need be associated with described video image by described projection display equipment Projection Display, control computer apparatus to stop providing image display signal to liquid crystal indicator, and the electric field controlling liquid crystal indicator is in closedown, light path is in through state, thered is provided the projection source picture signal be associated with described video image to projector by computer apparatus, projection display equipment catches projection through described liquid crystal indicator and the projected image be associated with described video image according to the Projection Display caught simultaneously.
10. the display control method of multilayer display device according to claim 9, it is characterized in that, described step B also comprises: when projection display equipment moves above liquid crystal indicator, the particular location of projection display equipment is obtained by a position sensor be arranged on below liquid crystal indicator, according to the particular location of this acquisition, provided the projected image be associated with liquid crystal indicator corresponding position to projector by computer apparatus.
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| CN201110429683.9A CN102520900B (en) | 2011-12-20 | 2011-12-20 | Multilayer display device and display control method thereof |
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| CN201110429683.9A CN102520900B (en) | 2011-12-20 | 2011-12-20 | Multilayer display device and display control method thereof |
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| CN102520900B true CN102520900B (en) | 2015-03-25 |
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| CN105474071A (en) | 2014-05-27 | 2016-04-06 | 联发科技股份有限公司 | Projection processor for projective display system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6481851B1 (en) * | 1995-09-20 | 2002-11-19 | Videotronic Systems | Adjustable contrast reflected display system |
| CN102016713A (en) * | 2008-05-02 | 2011-04-13 | 微软公司 | Projection of images onto tangible user interfaces |
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| KR101066990B1 (en) * | 2010-03-04 | 2011-09-22 | 주식회사 토비스 | Multilayer video display |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6481851B1 (en) * | 1995-09-20 | 2002-11-19 | Videotronic Systems | Adjustable contrast reflected display system |
| CN102016713A (en) * | 2008-05-02 | 2011-04-13 | 微软公司 | Projection of images onto tangible user interfaces |
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