CN212255897U - 3D display device and system - Google Patents

3D display device and system Download PDF

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CN212255897U
CN212255897U CN201820857367.9U CN201820857367U CN212255897U CN 212255897 U CN212255897 U CN 212255897U CN 201820857367 U CN201820857367 U CN 201820857367U CN 212255897 U CN212255897 U CN 212255897U
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light source
source group
group
display device
light
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吕国皎
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Chengdu Technological University CDTU
Chengdu Univeristy of Technology
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Abstract

The embodiment of the utility model provides a 3D display device and system relates to the optical display field, the device includes: a slit grating plate and a light source array plate; the slit grating plate and the light source array plate are arranged at intervals; the light source array plate comprises a plurality of light source groups, wherein multiple paths of light rays emitted by each light source group correspondingly converge to the observation visual area of each light source group after passing through the slit grating plate, and the positions of the observation visual areas of each light source group are different. The 3D display device is provided with a liquid crystal display panel between the slit grating plate and the light source array plate; and multiple paths of light rays emitted by each light source group and passing through the slit grating plate pass through the liquid crystal panel, so that a corresponding image is observed at the observation visual area of each light source group. Different images are observed in each observation visual region, and a more real 3D display effect is reproduced.

Description

3D display device and system
Technical Field
The utility model relates to an optical display field particularly, relates to a 3D display device and system.
Background
With the increase of population and the gradual improvement of living standard of people, the enjoyment of multimedia such as vision is gradually improved.
At present, 3D display is widely applied in daily life of people, but the experience of the existing 3D display technology is poor.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a 3D display device and system to improve the above problem.
In a first aspect, an embodiment of the present invention provides a 3D display device, the device includes: a slit grating plate and a light source array plate; the slit grating plate and the light source array plate are arranged at intervals; the light source array plate comprises a plurality of light source groups, wherein multiple paths of light rays emitted by each light source group correspondingly converge to the observation visual area of each light source group after passing through the slit grating plate, and the positions of the observation visual areas of each light source group are different.
As an alternative embodiment, each light source group includes a plurality of light sources arranged in an array; each light source group includes: n rows and m columns of light sources; each light source group includes: m light source columns, and n light source rows; any one of the light source groups serves as a first light source group, and a corresponding light source column in each light source group except the first light source group is arranged between every two adjacent light source columns in the first light source group; a corresponding light source row in each light source group except the first light source group is arranged between every two adjacent light source rows in the first light source group.
As an optional implementation manner, one light source group in the plurality of light source groups serves as a second light source group, each light source column in the first light source group is adjacent to each light source column in the second light source group in a one-to-one correspondence, and n light sources in each light source column in the first light source group are staggered with n light sources in each adjacent light source column in the second light source group; each light source row in the first light source group is adjacent to each light source row in the second light source group in a one-to-one correspondence, and m light sources in each light source row in the first light source group are staggered with m light sources in each light source row adjacent to each light source row in the second light source group.
As an alternative embodiment, the spacing between every two adjacent light source columns in each light source group is the same, and the spacing between every two adjacent light source rows in each light source group is the same.
As an optional implementation manner, m slits are arranged on the slit grating plate, and multiple paths of light rays emitted by m light source columns in each light source group correspondingly converge to the observation visual area of each light source group after passing through the m slits.
As an optional implementation, the apparatus further comprises: a liquid crystal display panel; the liquid crystal display panel is arranged between the slit grating plate and the light source array plate; and multiple paths of light rays emitted by each light source group and passing through the slit grating plate pass through the liquid crystal panel, so that a corresponding image is observed at the observation visual area of each light source group.
As an optional implementation manner, the distance from the observation view area of each light source group to the slit grating plate is equal, and the pitch between each two adjacent slits in the m slits is the same.
As an optional implementation manner, if the width of the light source column in the first light source group is w, the distance from the slit grating plate to the light source array plate is f, the distance from the observation visual area of the first light source group to the slit is d, and the width of the observation visual area of the first light source group is l, then the requirement is met
Figure DEST_PATH_GDA0002738385000000031
In an alternative embodiment, the light source columns in the first light source group have a pitch p2Pitch of slits being p1If the distance from the slit grating plate to the light source array is f and the distance from the observation visual area to the slit is d, the requirement is met
Figure DEST_PATH_GDA0002738385000000032
In a second aspect, an embodiment of the present invention provides a 3D display system, including: the 3D display device of the above-described first aspect embodiment and/or any possible implementation manner of the first aspect embodiment, and an external power supply, the external power supply being connected to the 3D display device.
The embodiment of the utility model provides a beneficial effect is:
the embodiment of the utility model provides a 3D display device, a serial communication port, the device includes: a slit grating plate and a light source array plate; the slit grating plate and the light source array plate are arranged at intervals; the light source array plate comprises a plurality of light source groups, wherein multiple paths of light rays emitted by each light source group correspondingly converge to the observation visual area of each light source group after passing through the slit grating plate, and the positions of the observation visual areas of each light source group are different.
The 3D display device is provided with a liquid crystal display panel between the slit grating plate and the light source array plate; and multiple paths of light rays emitted by each light source group and passing through the slit grating plate pass through the liquid crystal panel, so that a corresponding image is observed at the observation visual area of each light source group. Different images are observed in each observation visual region, and a more real 3D display effect is reproduced.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic structural diagram illustrating a first viewing angle of a 3D display device according to a second embodiment of the present invention;
fig. 2 is a schematic structural diagram of a light source array board of a 3D display device according to a second embodiment of the present invention at a second viewing angle;
fig. 3 is a schematic structural diagram of a light source array board of a 3D display device according to a second embodiment of the present invention.
Icon: 10-3D display systems; 11-an external power supply; a 100-3D display device; 1100-light source array panel; 110-a light source group; 111-light source column; 112-light source row; 1101-light source points; 120-slit grating plate; 130-observation field of view; 140-liquid crystal display panel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that the terms "horizontal", "vertical", "inner", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "disposed," "mounted," and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
The embodiment of the utility model provides a 3D display system, include: a 3D display device 100 and an external power supply 11, wherein the external power supply 11 is connected with the 3D display device 100.
Second embodiment
Referring to fig. 1, an embodiment of the present invention provides a 3D display device 100, including: a slit grating plate 120 and a light source array plate 1100; the slit grating plate 120 and the light source array plate 1100 are arranged at intervals; the light source array panel 1100 includes a plurality of light source groups 110, multiple paths of light rays emitted by each light source group 110 correspondingly converge to the observation visual area 130 of each light source group 110 after passing through the slit grating 120 panel, and the positions of the observation visual areas 130 of each light source group 110 are different.
Fig. 1 is a schematic diagram showing only one light source group in the light source array board 1100, which is only for convenience of understanding of those skilled in the art and is not intended to limit the present invention.
Referring to fig. 2 and 3, each light source group 110 includes a plurality of light source points 1101 arranged in an array; light source point 1101 is optional and may be a circular light source as shown in fig. 2 or a rectangular light source as described in fig. 3. Because the light source points have certain width, light rays emitted by the light source points in one light source group pass through the slits and then are converged on the observation visual area with certain width.
Each light source group 110 includes: n rows and m columns of light sources; each light source group 110 includes: m light source columns 111, and n light source rows 112; any one light source group 110 of the plurality of light source groups 110 is taken as a first light source group 110, and a corresponding light source column 111 of each light source group 110 except the first light source group 110 of the plurality of light source groups 110 is arranged between every two adjacent light source columns 111 of the first light source group 110; a corresponding light source row 112 of each light source group 110 except the first light source group 110 in the plurality of light source groups 110 is arranged between every two adjacent light source rows 112 in the first light source group 110.
Referring to fig. 2 and fig. 3, it can be seen from the figure that each row of light source points 1101 forms a light source row 112, each column of light source points 1101 forms a light source column 111, and then a light source row where one light source point 1101 is located and light source points 1101 in the light source columns 111 where other light source points 1101 in the light source row 111 are located form a light source group 110.
A light source group 110 of the plurality of light source groups 110 is used as a second light source group 110, each light source column 111 of the first light source group 110 is adjacent to each light source column 111 of the second light source group 110 in a one-to-one correspondence, and n light sources of each light source column 111 of the first light source group 110 are staggered with n light sources of each light source column 111 of the second light source group 110; each light source row 112 in the first light source group 110 is adjacent to each light source row 112 in the second light source group 110 in a one-to-one correspondence, and m light sources in each light source row 112 in the first light source group 110 are staggered with m light sources in each light source row 112 adjacent to the second light source group 110.
The pitch of each two adjacent light source columns 111 in each light source group 110 is the same, and the pitch of each two adjacent light source rows 112 in each light source group 110 is the same.
The slit grating plate 120 is provided with m slits, and multiple paths of light rays emitted from m light source columns 111 in each light source group 110 correspondingly converge to the observation visual area 130 of each light source group 110 after passing through the m slits.
The slits of the slit grating plate 120 are perpendicular to the placing plane, m slits are parallel to each other, and the distance between two adjacent slits is equal.
The device further comprises: a liquid crystal display panel 140; the liquid crystal display panel 140 is disposed between the slit grating plate 120 and the light source array plate 1100; the multiple light beams emitted by each light source group 110 and passing through the slit grating 120 pass through the liquid crystal panel, so that an image is observed at the observation view region 130 of each light source group 110.
The liquid crystal display panel 140 is divided into a plurality of image areas, which correspond to different light source groups 110, respectively, and the light emitted by the corresponding light source group 110 illuminates the pixels of the corresponding area on the liquid crystal display panel 140, and then the light passes through the slit and converges on the observation visual area 130, so that the human eye positioned in the observation visual area 130 can see the corresponding image. A plurality of images are displayed on the lcd panel 140 in an interlaced manner, and each image corresponds to one light source group 110. For example, three images of a, b and c are displayed on the liquid crystal display panel 140, the liquid crystal display panel 140 is divided into n rows of display unit areas at equal intervals in the vertical direction, each row of display unit area is further divided into 3 rows of display subunit areas, the first row of display subunit area of each row of display unit area correspondingly displays the image of a, the second row of display subunit area of each row of display unit area displays the image of b, and the third row of display subunit area of each row of display unit area displays the image of c. In the liquid crystal display panel 140 with a fixed size, the larger the value of n, the higher the density of the interlacing of the respective images, and the better the display effect. The light source group 110 corresponding to the diagram a has n light source rows 112, and the n light sources sequentially illuminate the first row of display sub-unit regions of each row of display unit regions on the liquid crystal display panel 140 in a one-to-one correspondence.
The distance from the observation view region 130 of each light source group 110 to the slit grating plate 120 is equal, and the pitch between each two adjacent slits in the m slits is the same.
The width of the light source column 111 in the first light source group 110 is w, the distance from the slit grating plate 120 to the light source array plate 1100 is f, the distance from the observation viewing zone 130 of the first light source group 110 to the slit is d, and the width of the observation viewing zone 130 of the first light source group 110 is l, which satisfies the requirement that
Figure DEST_PATH_GDA0002738385000000081
The pitch of the light source columns 111 in the first light source group 110 is p2Pitch of slits being p1If the distance from the slit grating plate 120 to the light source array is f and the distance from the observation visual area 130 to the slit is d, the requirements are met
Figure DEST_PATH_GDA0002738385000000082
When a plurality of sets of light source groups 110 with different positions and different widths with appropriate parameters are set, a distribution form with high density in the middle of the viewing area and low on two sides can be formed, the density of the observation viewing area 130 near the optimal viewing area is high, the farther away from the central position, the lower the density of the observation viewing area 130 is, namely, the longer the width of the observation viewing area 130 is, if one person moves left and right in front of the 3D display device 100, relative to the dense area in the center, when the edge far from the center moves, the longer distance needs to be moved to enter the observation viewing area of the next light source group 110, namely, a new image is seen. The 3D display device 100 has different viewing area densities, that is, a plurality of observation viewing areas 130 are provided in the central area, so that a continuous parallax can be formed in the central area, and a small distance is moved to enter a next observation viewing area to sense a change of an image, thereby giving a more real sense to a person. The other regions have a low viewpoint density, and only the basic 3D display function is ensured, but the parallax continuity is low. Compared with a traditional 3D display with the same number of viewpoints and completely uniform viewpoint density, the three-dimensional display has higher parallax continuity in a certain area, and therefore has a better viewing effect. In addition, the structure of the display is irrelevant to the pixel dot pitch of the 2D display panel, and the adaptability is stronger than that of a traditional 3D display.
Referring to fig. 2, 5 groups of light sources respectively corresponding to 5 parallax images have different positions in the horizontal direction, so that 5 groups of viewing zones with non-overlapping spatial positions can be obtained through the slits. In the light source array of the display, let the width of the light source point 1101 corresponding to the 1 st row of light source lines 112 be w1The width of the light source point 1101 of the 2/3/4 th row of light source lines 112 is w2,w1Is w2Twice of the first row, thus the first row of light sourcesThe light source group 1100 with the light source 112 in the second row can obtain twice the viewing zone width relative to the light source group 1100 with the light source row 112 in the second row, and therefore the distribution density of the observation viewing zone 130 corresponding to the light source row 112 in the 2/3/4 th row is higher. Thus, the display forms a distribution of high viewing zone density on the middle and low sides, with high density of viewing zones 130 near the optimal viewing area and lower density of viewing zones 130 further from the central location. The display has different densities of the observation visual regions 130, so that continuous parallax can be formed in the central area, and the densities of the other observation visual regions 130 are lower, so that only the basic 3D display function is ensured, but the parallax continuity is lower. Compared with the conventional 3D display with the same number of viewpoints and completely uniform density of the observation visual area 130, the parallax image display has higher parallax continuity in a certain area, thereby having better viewing effect. In addition, the structure of the display is irrelevant to the pixel dot pitch of the 2D display panel, and the adaptability is stronger than that of a traditional 3D display.
To sum up, the embodiment of the present invention provides a 3D display device 100, the device includes: a slit grating plate 120 and a light source array plate 1100; the slit grating plate 120 and the light source array plate 1100 are arranged at intervals; the light source array panel 1100 includes a plurality of light source groups 110, multiple paths of light rays emitted by each light source group 110 correspondingly converge to the observation visual area 130 of each light source group 110 after passing through the slit grating 120 panel, and the positions of the observation visual areas 130 of each light source group 110 are different.
The 3D display device 100 further includes a liquid crystal display panel 140 disposed between the slit grating 120 and the light source array 1100; the multiple light beams emitted by each light source group 110 and passing through the slit grating 120 pass through the liquid crystal panel, so that an image is observed at the observation view region 130 of each light source group 110. Each viewing zone 130 observes a different image, with a 3D representation in the middle.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A3D display device, characterized in that the device comprises: a slit grating plate and a light source array plate; the slit grating plate and the light source array plate are arranged at intervals;
the light source array plate comprises a plurality of light source groups, wherein multiple paths of light rays emitted by each light source group correspondingly converge to the observation visual area of each light source group after passing through the slit grating plate, and the positions of the observation visual areas of each light source group are different.
2. A 3D display device according to claim 1 wherein each light source bank comprises a plurality of light sources arranged in an array;
each light source group includes: n rows and m columns of light sources; each light source group includes: m light source columns, and n light source rows;
any one of the light source groups serves as a first light source group, and a corresponding light source column in each light source group except the first light source group is arranged between every two adjacent light source columns in the first light source group;
a corresponding light source row in each light source group except the first light source group is arranged between every two adjacent light source rows in the first light source group.
3. The 3D display device according to claim 2, wherein one of the plurality of light source groups is used as a second light source group,
each light source column in the first light source group is adjacent to each light source column in the second light source group in a one-to-one correspondence manner, and n light sources in each light source column in the first light source group are staggered with n light sources in each light source column adjacent to the second light source group;
each light source row in the first light source group is adjacent to each light source row in the second light source group in a one-to-one correspondence, and m light sources in each light source row in the first light source group are staggered with m light sources in each light source row adjacent to each light source row in the second light source group.
4. The 3D display device according to claim 3, wherein the distance between every two adjacent light source columns in each light source group is the same, and the distance between every two adjacent light source rows in each light source group is the same.
5. The 3D display device according to claim 4, wherein the slit grating plate is provided with m slits, and multiple paths of light rays emitted by the m light source columns in each light source group correspondingly converge on the observation visual area of each light source group after passing through the m slits.
6. The 3D display device according to claim 5, characterized in that the device further comprises: a liquid crystal display panel; the liquid crystal display panel is arranged between the slit grating plate and the light source array plate;
and multiple paths of light rays which are emitted by each light source group and pass through the slit grating plate pass through the liquid crystal display panel, so that a corresponding image is observed at the observation visual area of each light source group.
7. The 3D display device according to claim 6, wherein the distance from the observation viewing area of each light source group to the slit grating plate is equal, and the pitch between each two adjacent slits in the m slits is the same.
8. The 3D display device according to claim 7, wherein a width of a light source column in the first light source group is w, a distance from the slit grating plate to the light source array plate is f, a distance from an observation visual area of the first light source group to the slit is D, and an observation visual area width of the first light source group is l, which satisfies that
Figure DEST_PATH_FDA0002792680540000021
9. The 3D display device according to claim 8, wherein a pitch of light source columns in the first light source group is p2Pitch of slits being p1If the distance from the slit grating plate to the light source array is f and the distance from the observation visual area to the slit is d, the requirement is met
Figure DEST_PATH_FDA0002792680540000022
10. A3D display system, comprising: the 3D display device of any one of claims 1-9 and an external power source connected to the 3D display device.
CN201820857367.9U 2018-06-04 2018-06-04 3D display device and system Active CN212255897U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108681089A (en) * 2018-06-04 2018-10-19 成都工业学院 3D display apparatus and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108681089A (en) * 2018-06-04 2018-10-19 成都工业学院 3D display apparatus and system
CN108681089B (en) * 2018-06-04 2024-08-06 成都工业学院 3D display device and system

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