CN106488208B - Display device and display method - Google Patents
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- CN106488208B CN106488208B CN201710003176.6A CN201710003176A CN106488208B CN 106488208 B CN106488208 B CN 106488208B CN 201710003176 A CN201710003176 A CN 201710003176A CN 106488208 B CN106488208 B CN 106488208B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
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Abstract
The invention provides a display device and a display method, wherein the display device comprises: a display curtain comprising at least two sub-display regions, each sub-display region being separately drivable to enable each sub-display region to be switched between a scattering state and a transparent state; a projector for projecting an image onto the display screen; and the control mechanism is used for synchronously driving the projector and the display curtain so as to control at least part of the sub-display areas to be respectively switched into a scattering state or a transparent state according to the projection image of the projector. According to the display device provided by the invention, the display curtain can realize that part of the sub-display areas are in a scattering state so as to realize projection display, and part of the sub-display areas are in a transparent state so as to be convenient for watching actual scenes, realize illusion of virtual-real combined aerial display, and realize richer stage or display effect.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and a display method.
Background
In the prior art, an image display apparatus is used to display images by projecting images onto a display screen that can be switched between a transparent state and a scattering state by a projector. The image display device can be applied to a stage, when an image needs to be displayed, the display screen is switched to a scattering state, the projector projects an image onto the display screen to realize display, and the audience has a feeling of hollow display; when the images do not need to be displayed, the display screen is switched to be in a transparent state, the periphery is shielded through the lighting effect, the audience cannot see any medium, and the audience can watch the programs on the stage or watch the displayed products and the like through the display screen.
However, in the conventional image display device, the display screen is periodically controlled to be switched between the scattering state and the transparent state, so that when the projector projects an image, the display screen is controlled to be switched to the scattering state, and when the projector does not project the image, the display screen is controlled to be switched to the transparent state, so that the stage or display effect is relatively single, and the display effect of virtual and real combination cannot be realized.
Disclosure of Invention
The invention aims to provide a display device and a display method, which can control one part of a display screen to be in a scattering state and the other part to be in a transparent state according to a projection image of a projector when the projector projects, so as to realize richer stage or display effect.
The technical scheme provided by the invention is as follows:
a display device, comprising:
a display curtain comprising at least two sub-display regions, each sub-display region being separately drivable to enable each sub-display region to be switched between a scattering state and a transparent state;
a projector for projecting an image onto the display screen;
and the control mechanism is used for synchronously driving the projector and the display curtain so as to control at least part of the sub-display areas to be respectively switched into a scattering state or a transparent state according to the projection image of the projector.
Further, the control mechanism includes:
an acquisition unit configured to acquire image information of a projection image of the projector, the projection image including an image portion having an image pattern and a blank portion having no image pattern, the image information including position information of the image portion and the blank portion;
and the control unit is used for independently driving each sub-display area according to the image information acquired by the acquisition unit, so that the sub-display area at the position corresponding to the image part in the projection image projected by the projector is switched into a scattering state during projection, and the sub-display area at the position corresponding to the blank part is switched into a transparent state.
Further, the control mechanism further includes: a memory storing projection image data of the projector;
the acquisition unit includes:
an acquirer for directly acquiring the projection image data stored by the memory;
and a first converter for converting the projection image data acquired by the acquirer into the image information.
Further, the acquiring unit includes:
the collector is used for collecting current environment parameters at the corresponding positions of the sub-display areas of the display curtain so as to judge whether the sub-display areas are projected with image patterns of the projection images at present; and the second converter is used for converting the information collected by the collector into the image information.
Furthermore, the collector comprises an infrared collector which is arranged on one side of the sub-display areas facing the projector and used for collecting the current temperature of each sub-display area so as to judge whether the projection image is projected in each sub-display area currently.
Further, the display curtain comprises:
the first transparent electrode and the second transparent electrode are oppositely arranged;
and a liquid crystal dimming layer disposed between the first transparent electrode and the second transparent electrode;
at least one of the first transparent electrode and the second transparent electrode comprises at least two electrode blocks so as to divide the display screen into at least two sub-display areas, each electrode block is matched with an opposite electrode to drive a liquid crystal dimming layer in the corresponding sub-display area, and the liquid crystal dimming layer is a composite material of a transmission-scattering type liquid crystal phase and a high molecular resin phase, wherein the transmission-scattering type liquid crystal phase and the high molecular resin phase can switch a light transmission state and a light scattering state through electric driving.
Further, the display curtain comprises a first display area and a second display area, wherein,
the control mechanism controls each sub-display area in the first display area to be switched into a scattering state or a transparent state according to a projection image of the projector when the projector projects, and to be switched into the transparent state when the projector does not project; the control mechanism also controls each sub-display area in the second display area to be in a transparent state when the projector projects and does not project;
or the control mechanism controls each sub-display area in the first display area to be in a scattering state when the projector projects, and to be in a transparent state when the projector does not project; the control mechanism also controls each sub-display area in the second display area to be in a transparent state when the projector projects and does not project.
A display method applied to the display device as described above, the method comprising:
and synchronously driving the projector and the display curtain, and controlling at least part of the sub-display areas of the display curtain to be respectively switched into a scattering state or a transparent state according to the projection image of the projector.
Further, the method specifically comprises the following steps:
acquiring image information of a projection image of the projector, wherein the projection image comprises an image part with an image pattern and a blank part without the image pattern, and the projection image information comprises position information of the image part and the blank part;
and according to the image information acquired by the acquisition unit, driving each sub-display area independently so that the sub-display area at the position corresponding to the image part in the projection image projected by the projector is switched to a scattering state during projection, and the sub-display area at the position corresponding to the blank part is switched to a transparent state.
Further, acquiring image information of the projection image of the projector specifically includes:
directly acquiring projection image data of a projector for a memory, and converting the projection image data acquired by the acquirer into the image information;
or acquiring current environment parameters at the corresponding positions of the sub-display areas of the display curtain to judge whether the sub-display areas are projected with projection images currently or not, and converting the information acquired by the acquisition device into the image information.
Further, in the method, the first step of the method,
controlling each sub-display area in the first display area to be switched into a scattering state or a transparent state respectively according to a projection image of the projector when the projector projects, switching into the transparent state when the projector does not project, and controlling each sub-display area in the second display area to be in the transparent state when the projector projects and does not project;
or controlling each sub-display area in the first display area to be in a scattering state when the projector projects and to be in a transparent state when the projector does not project, and controlling each sub-display area in the second display area to be in a transparent state when the projector projects and does not project.
The beneficial effects brought by the invention are as follows:
the display device provided by the invention has the advantages that the display curtain can realize that a part of the sub-display area is in a scattering state so as to realize projection display, and a part of the sub-display area is in a transparent state so as to be convenient for watching an actual scene (for example, dance or other display of an actual person can be carried out behind the sub-display area in the transparent state), realize illusion of virtual-real combined aerial display, and realize richer stage or display effect.
Drawings
FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a display curtain of the display device of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of a display device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
The invention provides a display device, which aims to solve the problems that when a projector projects a display screen of the display device in the prior art, all the display screen is switched to a scattering state, and when the projector does not project the display screen, all the display screen is switched to a transparent state, so that a stage or display effect is single, and a virtual-real combined display effect cannot be realized.
As shown in fig. 1, the display device provided by the present invention includes:
a display sheet 100, the display sheet 100 comprising at least two sub-display regions, each sub-display region being capable of being driven individually to enable each sub-display region to be switched between a scattering state and a transparent state;
a projector 200 for projecting an image onto the display screen 100;
and a control mechanism (not shown in the figures) for synchronously driving the projector 200 and the display curtain 100 to control at least a part of the sub-display regions to be switched to a scattering state or a transparent state according to the projection image of the projector 200.
According to the display device provided by the invention, at least part of the sub-display areas of the display curtain 100 can be switched in state according to the projection image of the projector 200 when the projector 200 projects, so that part of the sub-display areas can be in a scattering state to realize projection display, and part of the sub-display areas are in a transparent state to facilitate the observation of an actual scene (for example, dance or other display of an actual person can be performed behind the sub-display areas in the transparent state), namely, the display device can realize local control, and realize illusion of virtual-real combined aerial display so as to obtain richer stage or display effects.
In the embodiment provided by the present invention, preferably, as shown in fig. 2, the display curtain 100 includes:
a first transparent electrode 110 and a second transparent electrode 120 disposed opposite to each other;
and a liquid crystal light modulation layer 130 disposed between the first transparent electrode 110 and the second transparent electrode 120;
at least one of the first transparent electrode 110 and the second transparent electrode 120 includes at least two electrode blocks to divide the display screen 100 into at least two sub-display areas, each of the electrode blocks cooperates with an opposite electrode to drive the liquid crystal dimming layer 130 in the corresponding sub-display area, the liquid crystal dimming layer 130 is a composite material of a transmission-scattering type liquid crystal phase and a polymer resin phase capable of switching between a light transmission state and a light scattering state through electric driving, and preferably, the liquid crystal dimming layer 130 may be a formal polymer dispersed liquid crystal PDLC layer, a trans polymer dispersed liquid crystal PDLC layer, a polymer network liquid crystal PNLC layer, or a bistable phase liquid crystal dimming layer or a smectic phase bistable liquid crystal, and the like.
With the above scheme, the liquid crystal dimming layer 130 can be driven by the first transparent electrode 110 and the second transparent electrode 120 to realize the switching between the scattering state and the transparent state of the display screen, and one electrode of the first transparent electrode 110 and the second transparent electrode 120 or two electrodes of the first transparent electrode 110 and the second transparent electrode 120 is made into a structure of at least two electrode blocks, and each electrode block cooperates with the opposite electrode to drive the liquid crystal dimming layer 130 in the corresponding sub-display area, so as to realize the independent driving of the sub-display areas.
It should be noted that the above only provides a preferred structure of the display screen, and it should be understood that the structure of the sub display area may not be limited thereto.
Several preferred embodiments of the display device provided by the present invention are described below.
In one embodiment of the present invention, the control mechanism comprises:
an acquisition unit configured to acquire image information of a projection image of the projector 200, the projection image including an image portion having an image pattern and a blank portion having no image pattern, the image information including position information of the image portion and the blank portion;
and a control unit configured to separately drive each sub-display region according to the image information acquired by the acquisition unit, so that the sub-display region at the position corresponding to the image portion in the projection image projected by the projector 200 is switched to the scattering state during projection, and the sub-display region at the position corresponding to the blank portion is switched to the transparent state.
By adopting the above scheme, the image information in the image projected by the projector 200 can be acquired, and timely driving is performed according to the projected image of the projector 200, when the projector 200 projects on any picture, the sub-display area onto which the projected pattern light can project is switched to the scattering state, and the other sub-display areas not projecting the pattern light are switched to the transparent state. That is, the driving switch of the display screen 100 is synchronized with the projector 200, and the driving content of the display screen 100 is also synchronized with the projector in real time, so that the display screen 100 can be driven in different areas according to the size and position of the projected image to match the projected image of the projector 200.
The control mechanism preferably can acquire the projection image information of the projector 200 and realize the synchronous driving of the display curtain 100 and the projector 200 by the following two ways:
the first mode is as follows:
the control mechanism includes: a memory for storing projection image data of the projector 200; the acquisition unit includes: an acquirer for directly acquiring the projection image data stored by the memory; and a first converter for converting the projection image data acquired by the acquirer into the image information.
With the above-described configuration, the projection image data of the projector can be directly read, and the read projection image data is converted into the image information in combination with data such as the projection distance, so that when the projector 200 projects, the sub display region onto which the pattern portion of the projection image can be projected is switched to the scattering state, and the sub display region corresponding to the blank portion is in the transparent state.
The second mode is as follows:
the acquisition unit includes: a collector for collecting current environmental parameters at positions corresponding to the sub-display areas of the display curtain 100 to determine whether the sub-display areas are currently projected with image patterns of the projection images; and the second converter is used for converting the information collected by the collector into the image information.
By adopting the above scheme, the image light projected by the projector 200 can be captured in real time by the collector by collecting the current environment parameters (including temperature and the like) at the corresponding positions of the sub-display areas, so as to directly judge whether the sub-display areas currently have the image light of the projected image, and the sub-display areas at the areas can be driven in real time for the local areas with capture points (with pattern light), so that the sub-display areas in the areas are switched to the scattering state, and the projection of the areas is completed.
Preferably, the collector includes an infrared collector disposed on a side of the sub-display area facing the projector 200, and configured to collect a current temperature of each sub-display area, so as to determine whether each sub-display area currently has a projection image.
By adopting the above scheme, because the temperature of the area projected by the pattern light is higher than the height of the area not projected by the pattern light, the current temperature of each sub-display area can be obtained by the infrared collector, and the current projection image information of the projector 200 can be obtained.
It should be noted that, compared with the second method, the first method directly reads data for conversion, so that the data is more accurate, but when the projection distance changes slightly, distance parameters need to be adjusted, and distance measurement errors may cause synchronous driving to have picture position deviation; the information of the projection image of the projector 200 is obtained by capturing the light with infrared rays, which is not affected by the projection distance.
In another embodiment provided by the present invention, preferably, as shown in fig. 3, the display curtain 100 includes a first display area 101 and a second display area 102, wherein the control mechanism controls each sub-display area in the first display area 101 to be switched to a scattering state or a transparent state according to the projection image of the projector 200 when the projector 200 projects the projection image, and to be switched to the transparent state when the projector 200 does not project the projection image; the control mechanism also controls each sub-display area in the second display area 102 to be in a transparent state when the projector 200 projects and does not project.
In the above solution, the display curtain 100 can be divided into a first display area 101 and a second display area 102, where the first display area 101 is a projection area, the second display area 102 is a non-projection area, and only a part of the area for projection is needed, so that only the first display area 101 and the projector need to be driven synchronously, when the projector works in projection, a sub-display area with a projection pattern in the first display area 101 is in a scattering state, and a sub-display area without the projection pattern is in a transparent state, and the second display area 102 is in a transparent state; when the projector does not work, the first display area 101 is in a transparent state, and the second display area 102 is always in a transparent state, so that dance or other display of an actual person can be performed behind the second display area 102.
In addition, in another embodiment provided by the present invention, preferably, the display curtain 100 includes a first display area 101 and a second display area 102, wherein the control mechanism controls each sub-display area in the first display area 101 to be in a scattering state when the projector 200 projects, and to be in a transparent state when the projector does not project; the control mechanism also controls each sub-display area in the second display area 102 to be in a transparent state when the projector 200 projects and does not project.
In the above solution, the display curtain 100 may be divided into a first display area 101 and a second display area 102, where the first display area 101 is a projection area, the second display area 102 is a non-projection area, and only a part of the projection area is used, so that only the first display area 101 and the projector need to be driven synchronously, and when the projector works in projection, the first display area 101 is always in a scattering state, and the second display area 102 is in a transparent state; when the projector is not operating, the first display area 101 is in a transparent state, and the second display area 102 is always in a transparent state.
It is still another object of the present invention to provide a display method applied to the display device as described above, the method comprising: the projector 200 and the display curtain 100 are synchronously driven, and at least part of the sub-display areas of the display curtain 100 are controlled to be switched to a scattering state or a transparent state respectively according to the projection image of the projector 200.
Further, the method specifically comprises the following steps:
acquiring image information of a projected image of the projector 200, the projected image including an image portion having an image pattern and a blank portion having no image pattern, the projected image information including position information of the image portion and the blank portion;
according to the image information acquired by the acquiring unit, each sub-display area is driven individually, so that the sub-display area at the position corresponding to the image portion in the projection image projected by the projector 200 is switched to the scattering state during projection, and the sub-display area at the position corresponding to the blank portion is switched to the transparent state.
Further, acquiring image information of the projection image of the projector 200 specifically includes:
directly acquiring projection image data of the projector 200 for memory, and converting the projection image data acquired by the acquirer into the image information;
or, the current environmental parameters at the corresponding positions of the sub-display areas of the display curtain 100 are collected to determine whether the sub-display areas currently have projection images, and the information collected by the collector is converted into the image information.
Further, in the method, each sub-display area in the first display area 101 is controlled to be switched to a scattering state or a transparent state according to a projection image of the projector 200 when the projector 200 projects, switched to the transparent state when the projector 200 does not project, and controlled to be in the transparent state when the projector 200 projects and does not project;
or, each sub-display area in the first display area 101 is controlled to be in a scattering state when the projector 200 projects, and to be in a transparent state when the projector does not project, and each sub-display area in the second display area 102 is controlled to be in a transparent state when the projector 200 projects and does not project.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. A display device, comprising:
a display curtain comprising at least two sub-display regions capable of projection display, each sub-display region being separately drivable to enable each sub-display region to be switched between a scattering state and a transparent state;
the projector is used for projecting images to each sub-display area of the display curtain;
the control mechanism is used for synchronously driving the projector and the display curtain so as to control at least part of the sub-display areas to be respectively switched into a scattering state or a transparent state according to the projection image of the projector;
the display curtain comprises a first display area and a second display area, wherein,
the control mechanism controls each sub-display area in the first display area to be switched into a scattering state or a transparent state according to a projection image of the projector when the projector projects, and to be switched into the transparent state when the projector does not project; the control mechanism also controls each sub-display area in the second display area to be in a transparent state when the projector projects and does not project;
or the control mechanism controls each sub-display area in the first display area to be in a scattering state when the projector projects, and to be in a transparent state when the projector does not project; the control mechanism also controls each sub-display area in the second display area to be in a transparent state when the projector projects and does not project;
the control mechanism includes:
an acquisition unit configured to acquire image information of a projection image of the projector, the projection image including an image portion having an image pattern and a blank portion having no image pattern, the image information including position information of the image portion and the blank portion;
the acquisition unit includes:
the collector is used for collecting current environment parameters at the corresponding positions of the sub-display areas of the display curtain so as to judge whether the sub-display areas are projected with image patterns of the projection images at present; the second converter is used for converting the information collected by the collector into the image information;
the collector comprises an infrared collector which is arranged on one side of the sub-display areas, which faces the projector, and is used for collecting the current temperature of each sub-display area so as to judge whether the projection image is projected in each sub-display area.
2. The display device according to claim 1,
the control mechanism includes:
an acquisition unit configured to acquire image information of a projection image of the projector, the projection image including an image portion having an image pattern and a blank portion having no image pattern, the image information including position information of the image portion and the blank portion;
and the control unit is used for independently driving each sub-display area according to the image information acquired by the acquisition unit, so that the sub-display area at the position corresponding to the image part in the projection image projected by the projector is switched into a scattering state during projection, and the sub-display area at the position corresponding to the blank part is switched into a transparent state.
3. The display device according to claim 2,
the control mechanism further includes: a memory storing projection image data of the projector;
the acquisition unit includes:
an acquirer for directly acquiring the projection image data stored by the memory;
and a first converter for converting the projection image data acquired by the acquirer into the image information.
4. The display device according to claim 1,
the display curtain includes:
the first transparent electrode and the second transparent electrode are oppositely arranged;
and a liquid crystal dimming layer disposed between the first transparent electrode and the second transparent electrode;
at least one of the first transparent electrode and the second transparent electrode comprises at least two electrode blocks so as to divide the display screen into at least two sub-display areas, each electrode block is matched with an opposite electrode to drive a liquid crystal dimming layer in the corresponding sub-display area, and the liquid crystal dimming layer is a composite material of a transmission-scattering type liquid crystal phase and a high molecular resin phase, wherein the transmission-scattering type liquid crystal phase and the high molecular resin phase can switch a light transmission state and a light scattering state through electric driving.
5. A display method applied to the display device according to any one of claims 1 to 4, the method comprising:
synchronously driving the projector and the display screen, and controlling at least part of the sub-display areas of the display screen to be respectively switched into a scattering state or a transparent state according to the projection image of the projector;
in the method, the raw material is subjected to a chemical reaction,
controlling each sub-display area in the first display area to be switched into a scattering state or a transparent state respectively according to a projection image of the projector when the projector projects, switching into the transparent state when the projector does not project, and controlling each sub-display area in the second display area to be in the transparent state when the projector projects and does not project;
or controlling each sub-display area in the first display area to be in a scattering state when the projector projects and to be in a transparent state when the projector does not project, and controlling each sub-display area in the second display area to be in a transparent state when the projector projects and does not project.
6. The display method according to claim 5, wherein the method specifically comprises:
acquiring image information of a projection image of the projector, wherein the projection image comprises an image part with an image pattern and a blank part without the image pattern, and the projection image information comprises position information of the image part and the blank part;
and according to the image information acquired by the acquisition unit, driving each sub-display area independently so that the sub-display area at the position corresponding to the image part in the projection image projected by the projector is switched to a scattering state during projection, and the sub-display area at the position corresponding to the blank part is switched to a transparent state.
7. The display method according to claim 6, wherein acquiring image information of the projection image of the projector specifically includes:
directly acquiring projection image data of a projector for a memory, and converting the acquired projection image data into the image information;
or acquiring current environment parameters at the corresponding positions of the sub-display areas of the display curtain to judge whether the sub-display areas are projected with projection images currently or not, and converting the information acquired by the acquisition device into the image information.
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| CN107742492B (en) * | 2017-11-01 | 2021-10-01 | 京东方科技集团股份有限公司 | Transparent display system and display method thereof |
| CN110795053B (en) * | 2018-08-01 | 2023-07-18 | 昆山纬绩资通有限公司 | Computer screen local projection method and system |
| CN111093102A (en) * | 2019-12-30 | 2020-05-01 | 星络智能科技有限公司 | Storage medium, interactive device and video highlight rendering playing method thereof |
| CN111093112A (en) * | 2019-12-30 | 2020-05-01 | 星络智能科技有限公司 | Storage medium, interaction device and video shadow rendering and playing method thereof |
| CN111182349A (en) * | 2019-12-30 | 2020-05-19 | 星络智能科技有限公司 | Storage medium, interactive device and video playing method thereof |
| CN113132767A (en) * | 2019-12-30 | 2021-07-16 | 星络智能科技有限公司 | Storage medium, video pushing method and system |
| CN111159466A (en) * | 2019-12-30 | 2020-05-15 | 星络智能科技有限公司 | Storage medium, music push method and system |
| CN113497930A (en) * | 2020-03-20 | 2021-10-12 | 华为技术有限公司 | Display method and device for controlling display |
| CN111489636B (en) * | 2020-04-21 | 2022-06-03 | 京东方科技集团股份有限公司 | Transparent display device |
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