CN213069371U - Device based on backlight and display screen - Google Patents
Device based on backlight and display screen Download PDFInfo
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- CN213069371U CN213069371U CN202021943442.7U CN202021943442U CN213069371U CN 213069371 U CN213069371 U CN 213069371U CN 202021943442 U CN202021943442 U CN 202021943442U CN 213069371 U CN213069371 U CN 213069371U
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Abstract
The utility model discloses a device based on a backlight source and a display screen, which comprises the backlight source, a gradually-changed aperture rectangular pinhole array, a barrier array and the display screen; the number of rectangular pinholes in the horizontal direction of the gradually-changed aperture rectangular pinhole array is equal to the number of rectangular pinholes in the vertical direction, and the number of the rectangular pinholes in the horizontal direction and the number of the rectangular pinholes in the vertical direction are both even numbers; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to the ratio of the horizontal width to the vertical width of the gradually-changed aperture rectangular pinhole array; the barrier array comprises a plurality of barriers which are perpendicular to the display screen and the gradient-aperture rectangular pinhole array and are used for separating adjacent rectangular pinholes and corresponding rectangular image elements, and light rays penetrating through each rectangular pinhole can only illuminate the corresponding rectangular image elements for imaging.
Description
Technical Field
The utility model relates to a 3D shows, more specifically says, the utility model relates to a device based on backlight and display screen.
Background
Compared with other 3D displays, such as glasses type vision-aided 3D display, helmet type vision-aided 3D display, grating 3D display, volume 3D display, holographic 3D display and the like, the integrated imaging 3D display has the advantages of continuous viewpoints, suitability for watching by multiple people, no need of vision-aided equipment and coherent light sources, simple structure, low cost and the like. The adoption of the pinhole array with the gradually changed aperture can increase the optical efficiency on the premise of not reducing the viewing angle. In a conventional integrated imaging 3D display based on a graded aperture pinhole array, both image elements and pinholes are square, i.e. the horizontal pitch of the image elements and pinholes is equal to the vertical pitch. The horizontal width and the vertical width of the display are not equal, so that the traditional integrated imaging 3D display based on the gradient aperture pinhole array has the problem of uneven resolution. The resolution of a conventional integrated imaging 3D display based on a graded aperture pinhole array is a few tenths of the resolution of a 2D display. Therefore, the non-uniformity of the resolution deepens the problem of poor viewing experience due to low resolution. In addition, the conventional integrated imaging 3D display based on the gradual aperture pinhole array still has the problems that the horizontal viewing angle is smaller than the vertical viewing angle and the horizontal and vertical viewing angles are inversely proportional to the aperture width.
Disclosure of Invention
The utility model provides aA device based on a backlight and a display screen, as shown in fig. 1 and 2, comprising a backlight, a gradient aperture rectangular pinhole array, a barrier array and a display screen; the display screen is used for displaying the rectangular image element array; the backlight source, the gradient aperture rectangular pinhole array and the display screen are arranged in parallel; the gradient-aperture rectangular pinhole array is tightly attached to the backlight source and is positioned between the backlight source and the barrier array; the barrier array is vertically arranged between the display screen and the gradient aperture rectangular pinhole array; the centers of the backlight source, the gradient aperture rectangular pinhole array, the barrier array and the display screen are correspondingly aligned; the horizontal widths of the backlight source, the gradient aperture rectangular pinhole array and the display screen are the same, and the vertical widths of the backlight source, the gradient aperture rectangular pinhole array and the display screen are the same; as shown in fig. 3, in the gradient-aperture rectangular pinhole array, the number of rectangular pinholes in the horizontal direction of the gradient-aperture rectangular pinhole array is equal to the number of rectangular pinholes in the vertical direction, and the number of rectangular pinholes in the horizontal direction and the number of rectangular pinholes in the vertical direction are both even; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to the ratio of the horizontal width to the vertical width of the gradually-changed aperture rectangular pinhole array; in the gradually-changed aperture rectangular pinhole arrayiHorizontal aperture width of row rectangular pinholesH i The first stepjVertical aperture width of row rectangular pinholesV j Calculated from the following formula
Wherein,pis the horizontal pitch of the rectangular pinholes,wis the aperture width of the rectangular pinhole at the center of the gradually-changed aperture rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed aperture rectangular pinhole array,lis the viewing distance, the distance between the viewer,gthe distance between the rectangular pinhole array with gradually changed aperture and the display screen，vIs the ratio of the vertical width to the horizontal width of the rectangular pinhole array with gradually changed aperture,iis less than or equal tomIs a positive integer of (a) to (b),jis less than or equal tomA positive integer of (d); as shown in fig. 4, the horizontal pitch of the rectangular image elements in the array of rectangular image elements is equal to the horizontal pitch of the rectangular pinholes, and the vertical pitch of the rectangular image elements in the array of rectangular image elements is equal to the vertical pitch of the rectangular pinholes; the barrier array comprises a plurality of barriers which are vertically arranged with the display screen and the gradient-aperture rectangular pinhole array and are used for separating adjacent rectangular pinholes and corresponding rectangular image elements, and light rays penetrating through each rectangular pinhole can only illuminate the corresponding rectangular image elements for imaging; horizontal viewing perspective for 3D displayθ 1Vertical viewing angleθ 2Horizontal resolutionR 1Vertical resolutionR 2Respectively as follows:
drawings
FIG. 1 is a schematic diagram of the structure and horizontal direction parameters of the present invention
FIG. 2 is a schematic diagram of the structure and vertical parameters of the present invention
FIG. 3 is a schematic diagram of a rectangular pinhole array with gradually changing aperture according to the present invention
FIG. 4 is a schematic diagram of a rectangular image cell array according to the present invention
The reference numbers in the figures are:
1. backlight source, 2 gradient aperture rectangular pinhole array, 3 barrier array and 4 display screen.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The following detailed description is of an exemplary embodiment of the invention in which the invention is utilized and further detailed. It is necessary to point out here that the following examples are only used for further illustration of the present invention, and should not be understood as limiting the scope of the present invention, and those skilled in the art can make some non-essential improvements and modifications to the present invention according to the above-mentioned contents of the present invention, and still fall into the scope of the present invention.
The utility model provides a device based on a backlight source and a display screen, as shown in attached figures 1 and 2, which is characterized in that the device comprises a backlight source, a rectangular pinhole array with gradually-changed aperture, a barrier array and a display screen; the display screen is used for displaying the rectangular image element array; the backlight source, the gradient aperture rectangular pinhole array and the display screen are arranged in parallel; the gradient-aperture rectangular pinhole array is tightly attached to the backlight source and is positioned between the backlight source and the barrier array; the barrier array is vertically arranged between the display screen and the gradient aperture rectangular pinhole array; the centers of the backlight source, the gradient aperture rectangular pinhole array, the barrier array and the display screen are correspondingly aligned; the horizontal widths of the backlight source, the gradient aperture rectangular pinhole array and the display screen are the same, and the vertical widths of the backlight source, the gradient aperture rectangular pinhole array and the display screen are the same; as shown in fig. 3, in the gradient-aperture rectangular pinhole array, the number of rectangular pinholes in the horizontal direction of the gradient-aperture rectangular pinhole array is equal to the number of rectangular pinholes in the vertical direction, and the number of rectangular pinholes in the horizontal direction and the number of rectangular pinholes in the vertical direction are both even; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to the ratio of the horizontal width to the vertical width of the gradually-changed aperture rectangular pinhole array; rectangular pinhole with gradually changed apertureIn the array ofiHorizontal aperture width of row rectangular pinholesH i The first stepjVertical aperture width of row rectangular pinholesV j Calculated from the following formula
Wherein,pis the horizontal pitch of the rectangular pinholes,wis the aperture width of the rectangular pinhole at the center of the gradually-changed aperture rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed aperture rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the rectangular pinhole array with gradually changed aperture and the display screen,vis the ratio of the vertical width to the horizontal width of the rectangular pinhole array with gradually changed aperture,iis less than or equal tomIs a positive integer of (a) to (b),jis less than or equal tomA positive integer of (d); as shown in fig. 4, the horizontal pitch of the rectangular image elements in the array of rectangular image elements is equal to the horizontal pitch of the rectangular pinholes, and the vertical pitch of the rectangular image elements in the array of rectangular image elements is equal to the vertical pitch of the rectangular pinholes; the barrier array comprises a plurality of barriers which are vertically arranged with the display screen and the gradient-aperture rectangular pinhole array and are used for separating adjacent rectangular pinholes and corresponding rectangular image elements, and light rays penetrating through each rectangular pinhole can only illuminate the corresponding rectangular image elements for imaging; horizontal viewing perspective for 3D displayθ 1Vertical viewing angleθ 2Horizontal resolutionR 1Vertical resolutionR 2Respectively as follows:
the ratio of the vertical width to the horizontal width of the rectangular pinhole array with gradually-changed aperture isv=0.6, horizontal pitch of rectangular pinholesp=5mm, the aperture width of the rectangular pinhole at the center of the gradient aperture rectangular pinhole array isw=0.8mm, viewing distancel=500mm, and the distance between the rectangular pinhole array with gradually-changed aperture and the display screen isg=5mm, the number of rectangular pinholes in the horizontal direction in the gradient-aperture rectangular pinhole array ismAnd (8). Calculating the horizontal aperture widths of the 1 st to 8 th rows of rectangular pinholes to be 1.1mm, 1mm, 0.9mm, 0.8mm, 0.9mm, 1mm and 1.1mm respectively according to the formulas (1) and (2); the vertical aperture widths of the rectangular pinholes in the 1 st to 8 th rows are respectively 0.98mm, 0.92mm, 0.86mm, 0.8mm, 0.86mm, 0,92mm, 0 and 98 mm; calculate according to equation (3), (4), (5) and (6), 3D show horizontal viewing angle, vertical viewing angle, horizontal resolution, vertical resolution be 61 °, 42 °, 8 respectively.
Claims (1)
1. A device based on a backlight source and a display screen is characterized by comprising the backlight source, a gradient aperture rectangular pinhole array, a barrier array and the display screen; the display screen is used for displaying the gradient aperture rectangular image element array; the backlight source, the gradient aperture rectangular pinhole array and the display screen are arranged in parallel; the gradient-aperture rectangular pinhole array is tightly attached to the backlight source and is positioned between the backlight source and the barrier array; the barrier array is vertically arranged between the display screen and the gradient aperture rectangular pinhole array; backlight source and backlight sourceThe centers of the variable-aperture rectangular pinhole array, the barrier array and the display screen are correspondingly aligned; the horizontal widths of the backlight source, the gradient aperture rectangular pinhole array and the display screen are the same, and the vertical widths of the backlight source, the gradient aperture rectangular pinhole array and the display screen are the same; in the gradient-aperture rectangular pinhole array, the number of rectangular pinholes in the horizontal direction of the gradient-aperture rectangular pinhole array is equal to the number of rectangular pinholes in the vertical direction, and the number of rectangular pinholes in the horizontal direction and the number of rectangular pinholes in the vertical direction are both even numbers; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to the ratio of the horizontal width to the vertical width of the gradually-changed aperture rectangular pinhole array; in the gradually-changed aperture rectangular pinhole arrayiHorizontal aperture width of row rectangular pinholesH i The first stepjVertical aperture width of row rectangular pinholesV j Calculated from the following formula
Wherein,pis the horizontal pitch of the rectangular pinholes,wis the aperture width of the rectangular pinhole at the center of the gradually-changed aperture rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed aperture rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the rectangular pinhole array with gradually changed aperture and the display screen,vis the ratio of the vertical width to the horizontal width of the rectangular pinhole array with gradually changed aperture,iis less than or equal tomIs a positive integer of (a) to (b),jis less than or equal tomA positive integer of (d); the horizontal pitch of the rectangular image elements in the rectangular image element array is equal to the horizontal pitch of the rectangular pinhole, and the vertical pitch of the rectangular image elements in the rectangular image element array is equal to the vertical pitch of the rectangular pinhole; the barrier array comprises a plurality of barriers arranged perpendicular to the display screen and the gradient-aperture rectangular pinhole array for separating adjacent rectangular needlesThe light penetrating through each rectangular pinhole can only illuminate the rectangular image element corresponding to the pinhole to form an image; horizontal viewing perspective for 3D displayθ 1Vertical viewing angleθ 2Horizontal resolutionR 1Vertical resolutionR 2Respectively as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021943442.7U CN213069371U (en) | 2020-09-08 | 2020-09-08 | Device based on backlight and display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021943442.7U CN213069371U (en) | 2020-09-08 | 2020-09-08 | Device based on backlight and display screen |
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| Publication Number | Publication Date |
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| CN213069371U true CN213069371U (en) | 2021-04-27 |
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| CN202021943442.7U Active CN213069371U (en) | 2020-09-08 | 2020-09-08 | Device based on backlight and display screen |
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Effective date of registration: 20230828 Address after: No. 30-1 Zhongshan Road, Qingshui County, Tianshui City, Gansu Province, 741000 Patentee after: Tianshui Ruige Video Information Technology Co.,Ltd. Address before: 610031 Sichuan province Chengdu City Street No. 2 Patentee before: CHENGDU TECHNOLOGICAL University |
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