CN114363590A - Display device and display method - Google Patents
Display device and display method Download PDFInfo
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- CN114363590A CN114363590A CN202011093544.9A CN202011093544A CN114363590A CN 114363590 A CN114363590 A CN 114363590A CN 202011093544 A CN202011093544 A CN 202011093544A CN 114363590 A CN114363590 A CN 114363590A
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Abstract
The invention protects a display device and a display method. The display device comprises a spatial light modulator, wherein the spatial light modulator comprises a plurality of independent modulation regions and performs regional modulation on light beams projected on the spatial light modulator to obtain image light; and the light guide device comprises a plurality of light guide assemblies which are arranged corresponding to the independent modulation areas and respectively guide the image light of the independent modulation areas to form images. The display device can realize image division display and can realize diversified display effects.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and a method capable of implementing image division display and realizing diversified display effects.
Background
The existing projection equipment needs to have enough projection background to display images, however, when the size and space of the projection background are insufficient, only a part of the images can be displayed, the projected images can only be displayed in a whole manner, the whole images cannot be displayed in a split manner, and the projection mode is single.
Therefore, it is necessary to develop a display device and a method that can realize divided image display and achieve diversified display effects.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a display device and method capable of implementing image division display and realizing diversified display effects.
The present invention provides a display device including:
a spatial light modulator including a plurality of independent modulation regions for performing a zoned modulation on a light beam projected on the spatial light modulator to obtain image light;
and the light guide device comprises a plurality of light guide components which are arranged corresponding to the independent modulation regions and are used for respectively guiding the image light obtained by modulating the independent modulation regions to image.
Preferably, the spatial light modulator comprises a DMD spatial light modulator, an Lcos spatial light modulator or an LCD spatial light modulator.
Preferably, the independently modulated regions are arranged along an X-axis and/or a Y-axis.
Preferably, the display device further includes a controller configured to control the spatial light modulator to perform regional modulation on the light beam projected on the spatial light modulator to obtain the image light.
Preferably, the display device further comprises a light source device, an optical processing assembly and a lens; the optical processing assembly comprises a wavelength conversion device, the wavelength conversion device absorbs at least part of the light beam emitted by the light source device and emits a received laser, and the lens images the guiding image light of the light guiding device.
Preferably, the wavelength conversion device comprises a transmissive wavelength conversion device or a reflective wavelength conversion device.
Preferably, the image light modulated by the independent modulation regions is imaged on at least two different projection backgrounds.
Preferably, the projection background comprises at least two projection backgrounds having different distances from the projection device.
Preferably, the display background comprises a curtain, a wall surface, a building, a water curtain, a waterfall, water mist, a cloud layer, a surface of a flying object, a firework smoke screen or a celestial body.
The invention also provides a display method, which comprises the following steps:
dividing the spatial light modulator into a plurality of independent modulation regions;
according to the image data of each frame of image to be displayed, a plurality of independent modulation areas are used for carrying out modulation respectively to form image light;
and guiding and imaging the image lights obtained by modulating the independent modulation areas by using a light guiding device.
Compared with the prior art, the invention has the following beneficial effects:
by providing the light guide device to guide the image light of the plurality of independent modulation regions of the spatial light modulator, the entire display image can be divided and displayed, and a display image of a plurality of sub-images of the entire display image can be formed. When the image background is not enough to display the whole image, the whole image can be divided and projected onto a plurality of display backgrounds, so that the complete display of the image is realized, and diversified display effects can be realized.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention.
Fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the invention.
Fig. 2 is an example of the division of the independent modulation regions of the spatial light modulator of the present invention.
FIG. 3 is a schematic diagram of the display effect of the image segmentation display according to the present invention.
Fig. 4 is a schematic structural diagram of a display device according to a second embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, the present invention provides a display device 100, which includes a light source device 10, an optical processing assembly 20, a controller 30, a spatial light modulator 40, a light guiding device 50, and a lens 60. The optical processing component 20 is used to adjust the light beam from the light source device 10 to form a uniform illumination light field on the spatial light modulator 40. The controller 30 is electrically connected to the light source device 10 and the spatial light modulator 40, and is configured to control on/off and/or light emitting brightness of the light source device 10, and control the spatial light modulator 40 to perform regional modulation on the light beam projected on the spatial light modulator 40 to obtain image light, the light guide device 50 is disposed corresponding to different modulation regions of the spatial light modulator, and guides the image light beam of the different regional modulation regions to the lens 60, and the lens 60 is configured to project a display image according to the image light.
The light source device 10 may be a laser, a light emitting diode, an organic light emitting diode, or a bulb, etc. In the present embodiment, the light source device 10 is a laser.
The optical processing assembly 20 includes a first relay lens group 201, a wavelength conversion device 202, and a second relay lens group 203 in sequence along the light path emergent direction. The light beam emitted from the light source device 10 is imaged on the wavelength conversion device 202 by the first relay lens group 201, and the light beam emitted from the wavelength conversion device 202 is imaged to the spatial light modulator 40 by the second relay lens group 203.
In this embodiment, the wavelength conversion device 202 is a transmissive wavelength conversion device. The wavelength conversion device 202 absorbs at least a portion of the light emitted by the light source array and emits the stimulated light. The wavelength conversion device 202 includes a substrate and a wavelength conversion layer. The substrate is used for bearing the wavelength conversion layer, and the wavelength conversion layer can be fluorescent powder capable of generating broad-spectrum light after being excited. Wherein the wavelength conversion layer can be divided into one or more sections.
The controller 30 is configured to receive original image data of an image to be displayed, and generate a control signal according to the original image data. The spatial light modulator 40 modulates the brightness corresponding to the light beam emitted from the light source device 10 according to the control signal to obtain image light. It is understood that the spatial light modulator 40 may be a DMD spatial light modulator, an Lcos spatial light modulator, or an LCD spatial light modulator, etc.
The spatial light modulator 40 can be divided into different regions according to the requirement under the control of the controller 30, and the regions are independently modulated, for example, two, three, four or more regions, and the number of specific modulation regions and the shape of each modulation region can be specifically set according to the requirement. Taking the example where the spatial light modulator 40 is a DMD spatial light modulator, as shown in fig. 2, the spatial light modulator 40 in fig. 2a may be divided into two independent modulation regions along the Y-axis direction, two independent modulation regions along the X-axis direction in fig. 2b, three independent modulation regions along the X-axis direction in fig. 2c, and four independent modulation regions along the X-axis and the Y-axis respectively in fig. 2 d.
The light guiding device 50 may include a plurality of light guiding components, wherein the plurality of light guiding components may respectively correspond to different modulation regions of the spatial light modulator, and guide image light beams of the different modulation regions to the lens 60, and the lens 60 is configured to project a display picture according to the image light. Wherein the light guiding means may be an optical fiber array or a light guide, but the present invention is not limited thereto as long as it can guide image light. Taking an optical fiber array as an example, the light guiding device 50 has two sets of light guiding components, and the light guiding components are optical fibers or an optical fiber array. The two sets of light directing components correspond to the two independent modulation regions of the spatial light modulator 40 in fig. 2b, respectively. As shown in fig. 3, a whole projection image 41 is subjected to the regional modulation by the spatial light modulator 40, and is guided to the lens 60 through two sets of fiber arrays corresponding to two independent modulation regions, so as to be imaged, thereby forming two divided projection images 42. Therefore, by providing the light guide device 50 to guide the image light of the plurality of independent modulation regions of the spatial light modulator 40, the entire projection image can be projected in divided form to form the projection images of the plurality of sub-images of the entire projection image. When the image background is not enough to display the whole image, the whole image can be segmented and projected onto a plurality of different projection backgrounds, so that the complete display of the image is realized.
The projection background can be in the form of a curtain, a wall surface, a building, a water curtain, a waterfall, water mist, a cloud layer, a surface of a flying object, a firework smoke screen, a celestial body and the like. Particularly, if the distance between the projection backgrounds and the projection device is not uniform, different sub-images are projected onto the projection backgrounds with different distances by dividing projection, so that the whole picture can have multilayer, three-dimensional, dynamic and other visual effects.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a display device according to a second embodiment of the present invention. The display device of the second embodiment is substantially the same as the display device of the first embodiment shown in fig. 1, and a display device 200 includes a light source device 10, an optical processing assembly 20, a controller 30, a spatial light modulator 40, a light guiding device 50, and a lens 60. The optical processing component 20 is used to adjust the light beam from the light source device 10 to form a uniform illumination light field on the spatial light modulator 40. The controller 30 is electrically connected to the light source device 10 and the spatial light modulator 40, and is configured to control on/off and/or light emitting brightness of the light source device 10, and control the spatial light modulator 40 to perform regional modulation on the light beam projected on the spatial light modulator 40 to obtain image light, the light guide device 50 is disposed corresponding to different modulation regions of the spatial light modulator, and guides the image light beam of the different regional modulation regions to the lens 60, and the lens 60 is configured to project a display image according to the image light.
The optical processing assembly 20 includes a first relay lens group 301, a light guide element 302, a second relay lens group 303, a wavelength conversion device 304, and a third relay lens group 305. The light beam emitted from the light source device 10 passes through the light guiding element 302 through the first relay lens group 301 to enter the wavelength conversion device 304 through the second relay lens group 303, the wavelength conversion device 304 converts and emits visible light of another wavelength, and the light beam emitted from the wavelength conversion device 304 is reflected by the light guiding element 302 through the third relay lens group 305 to the spatial light modulator 40 through the second relay lens group 303.
In this embodiment, the wavelength conversion device 304 is a reflective wavelength conversion device for reflecting the converted light and the scattered deflection light. The wavelength conversion device 304 includes a substrate, a reflective layer, and a wavelength conversion layer. The substrate is used for bearing the wavelength conversion layer and the reflection layer, and the wavelength conversion layer can be fluorescent powder which can generate broad-spectrum light after being excited.
In addition, the structures of the light source device 10, the controller 20, the spatial light modulator 40, the light guiding device 50 and the lens 60 in this embodiment are as described in the first embodiment, and are not described herein again.
According to a third embodiment of the present invention, there is also provided a display method applied to the display device according to the first and second embodiments, including:
s1: the spatial light modulator 40 is divided into a plurality of independent modulation regions. The image to be displayed can be divided according to the content of the image to be displayed, and then the modulation region of the spatial light modulator is correspondingly divided according to the dividing mode of the image to be displayed; or directly pre-dividing the spatial light modulator into a plurality of independent modulation regions.
S2: and according to the image data of each frame of image to be displayed, a plurality of independent modulation areas are used for carrying out modulation respectively to form image light.
S3: the image lights formed by the plurality of independent modulation regions are respectively subjected to guiding imaging by using the light guiding device 50. The image lights of the plurality of modulation regions are guided to the lens 60 by the plurality of light guide members corresponding to the modulation regions of the light guide device 50, respectively, to be imaged, thereby realizing the divided display of the image.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A display device, characterized in that the display device comprises:
a spatial light modulator including a plurality of independent modulation regions for performing a zoned modulation on a light beam projected on the spatial light modulator to obtain image light;
and the light guide device comprises a plurality of light guide components which are arranged corresponding to the independent modulation regions and are used for respectively guiding the image light obtained by modulating the independent modulation regions to image.
2. The display device according to claim 1, wherein the spatial light modulator comprises a DMD spatial light modulator, an Lcos spatial light modulator, or an LCD spatial light modulator.
3. A display device as claimed in claim 1 or 2, characterised in that the independently modulated regions are arranged along an X-axis and/or a Y-axis.
4. The display device according to claim 1 or 2, further comprising a controller for controlling the spatial light modulator to perform the divisional modulation of the light beam projected on the spatial light modulator to obtain the image light.
5. The display device according to claim 4, further comprising a light source device, an optical processing assembly, and a lens; the optical processing assembly comprises a wavelength conversion device, the wavelength conversion device absorbs at least part of the light beam emitted by the light source device and emits a received laser, and the lens images the guiding image light of the light guiding device.
6. The display device according to claim 5, wherein the wavelength conversion device comprises a transmissive wavelength conversion device or a reflective wavelength conversion device.
7. A display device as claimed in claim 1 or 2, characterized in that the image light modulated by the plurality of independently modulating regions is imaged on at least two different projection backgrounds.
8. The display device of claim 7, wherein the projected background comprises at least two projected backgrounds having different distances from the projection device.
9. The display device of claim 7, wherein the display background comprises a curtain, a wall surface, a building, a water curtain, a waterfall, a water mist, a cloud cover, a flyer surface, a firework smoke screen, or a celestial body.
10. A display method, comprising:
dividing the spatial light modulator into a plurality of independent modulation regions;
according to the image data of each frame of image to be displayed, a plurality of independent modulation areas are used for carrying out modulation respectively to form image light;
and guiding and imaging the image lights obtained by modulating the independent modulation areas by using a light guiding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011093544.9A CN114363590A (en) | 2020-10-13 | 2020-10-13 | Display device and display method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011093544.9A CN114363590A (en) | 2020-10-13 | 2020-10-13 | Display device and display method |
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| Publication Number | Publication Date |
|---|---|
| CN114363590A true CN114363590A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011093544.9A Pending CN114363590A (en) | 2020-10-13 | 2020-10-13 | Display device and display method |
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|---|---|
| CN (1) | CN114363590A (en) |
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- 2020-10-13 CN CN202011093544.9A patent/CN114363590A/en active Pending
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