CN110398843B - Dual-view 3D display device with wide view angle and uniform resolution - Google Patents
Dual-view 3D display device with wide view angle and uniform resolution Download PDFInfo
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Abstract
The invention discloses a double-view 3D display device with a wide view angle and uniform resolution, which comprises a display screen, a polaroid, a rectangular pinhole array, polarized glasses I and polarized glasses II; the horizontal width of the display screen is equal to that of the polaroid, and the horizontal width of the display screen is larger than that of the rectangular pinhole array; the vertical width of the display screen is equal to that of the polaroid, and the vertical width of the display screen is larger than that of the rectangular pinhole array; the sub-rectangular micro-image array I reconstructs a 3D image I through the rectangular pinhole array, and the 3D image I can only be seen through the polarized glasses I; the sub-rectangular microimage array II reconstructs a 3D image II through the rectangular pinhole array, and can only be seen through the polarized glasses II.
Description
Technical Field
The present invention relates to 3D displays, and more particularly, to a dual vision 3D display device with a wide viewing angle and uniform resolution.
Background
The integrated imaging dual-view 3D display is a fusion of the dual-view display technology and the integrated imaging 3D display technology. It may enable a viewer to see different 3D pictures in different viewing directions.
In a conventional integrated imaging dual vision 3D display:
(1) The micro-image array comprises an image element I and an image element II, wherein the image element I and the image element II are respectively positioned on the left half part and the right half part.
(2) The picture elements I and II are square, and the horizontal pitch of the picture elements I and II is equal to the vertical pitch.
(3) The pinholes corresponding to picture element I and picture element II are square and the horizontal pitch of the pinholes is equal to the vertical pitch.
(4) The number of 3D pixels of a single 3D image in the integrated imaging dual view 3D display is half the number of 3D pixels of a single 3D image in the integrated imaging 3D display.
For a cell phone, the ratio of the horizontal width to the vertical width of the cell phone is 3:4, 10:16, or 9:16. The defects are that:
(1) The ratio of 3D pixels in the horizontal direction to 3D pixels in the vertical direction of a single 3D image in an integrated imaging dual view 3D display is 3:8, 5:16, or 9:32. Very few 3D pixels in the horizontal direction affect the viewing effect.
(2) The horizontal and vertical viewing angles of each 3D image in an integrated imaging dual view 3D display are inversely proportional to the number of picture elements I and picture elements II in the horizontal and vertical directions, respectively.
For televisions and displays, the ratio of the horizontal width to the vertical width of the television and display is 4:3, 16:10, or 16:9. The defects are that:
(1) The ratio of 3D pixels in the horizontal direction to 3D pixels in the vertical direction of a single 3D image in an integrated imaging dual view 3D display is 2:3, 8:10, or 8:9. Fewer 3D pixels in the horizontal direction affect the viewing effect.
(2) The horizontal and vertical viewing angles of each 3D image in an integrated imaging dual view 3D display are inversely proportional to the number of picture elements I and picture elements II in the horizontal and vertical directions, respectively.
Disclosure of Invention
The invention provides a double-view 3D display device with wide view angle and uniform resolution, which is shown in figures 1, 2 and 3, and is characterized by comprising a display screen, a polaroid, a rectangular pinhole array, polarized glasses I and polarized glasses II; the horizontal central axis and the vertical central axis of the display screen, the polaroid and the rectangular pinhole array are respectively aligned correspondingly; the polaroid is attached to the display screen and is positioned between the display screen and the rectangular pinhole array; the rectangular pinhole array is arranged in front of the polaroid in parallel; the horizontal width of the display screen is equal to that of the polaroid, and the horizontal width of the display screen is larger than that of the rectangular pinhole array; the vertical width of the display screen is equal to that of the polaroid, and the vertical width of the display screen is larger than that of the rectangular pinhole array; the ratio of the horizontal width to the vertical width of the display screen is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array; horizontal width of display screenaAnd vertical widthbThe method comprises the following steps:
（1）
（2）
wherein,cis the horizontal width of the rectangular array of pinholes,lis the viewing distance of the object to be viewed,gis the spacing between the display screen and the rectangular pinhole array,xis the ratio of the vertical width to the horizontal width of the display screen;
the display screen is used for displaying a rectangular micro-image array, the rectangular micro-image array consists of a sub-rectangular micro-image array I and a sub-rectangular micro-image array II, the sub-rectangular micro-image array I consists of rectangular image elements I which are continuously arranged, and the sub-rectangular micro-image array II consists of rectangular image elements II which are continuously arranged, as shown in figure 4; the horizontal pitch of the rectangular picture element I is the same as that of the rectangular picture element II, and the vertical pitch of the rectangular picture element I is the same as that of the rectangular picture element II; the ratio of the horizontal pitch to the vertical pitch of the rectangular image element I and the ratio of the horizontal pitch to the vertical pitch of the rectangular image element II are equal to half of the ratio of the horizontal width to the vertical width of the display screen;
the polaroid consists of a sub-polaroid I and a sub-polaroid II, and the sub-polaroid I is orthogonal to the polarization direction of the sub-polaroid II, as shown in figure 5; the polarization direction of the polarized glasses I is the same as that of the sub-polaroid I, and the polarization direction of the polarized glasses II is the same as that of the sub-polaroid II;
in the rectangular pinhole array, the horizontal pitches of all the rectangular pinholes are the same, the vertical pitches of all the rectangular pinholes are the same, and the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to half of the ratio of the horizontal width to the vertical width of the rectangular pinhole array, as shown in fig. 6; the number of rectangular pinholes in the rectangular pinhole array is equal to the sum of the numbers of rectangular image elements I and rectangular image elements II in the rectangular microimage array;
the sub-rectangular micro-image array I is correspondingly aligned with the sub-polaroid I, and the sub-rectangular micro-image array II is correspondingly aligned with the sub-polaroid II; the horizontal width of the sub-rectangular micro-image array I is the same as that of the sub-polaroid I, and the vertical width of the sub-rectangular micro-image array I is the same as that of the sub-polaroid I; the horizontal width of the sub-rectangular micro-image array II is the same as that of the sub-polaroid II, and the vertical width of the sub-rectangular micro-image array II is the same as that of the sub-polaroid II; the sub-rectangular micro-image array I reconstructs a 3D image I through the rectangular pinhole array, and the 3D image I can only be seen through the polarized glasses I; the sub-rectangular microimage array II reconstructs a 3D image II through the rectangular pinhole array, and can only be seen through the polarized glasses II.
Preferably, the horizontal widths of the sub-rectangular micro-image array I, the sub-rectangular micro-image array II, the sub-polarizer I and the sub-polarizer II are the same, and the vertical widths of the sub-rectangular micro-image array I, the sub-rectangular micro-image array II, the sub-polarizer I and the sub-polarizer II are the same.
Preferably, the ratio of the horizontal aperture width to the vertical aperture width of the rectangular pinholes is equal to the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes.
Preferably, the horizontal viewing angle, the vertical viewing angle, the horizontal resolution, the vertical resolution, the horizontal optical efficiency, and the vertical optical efficiency of the 3D image I and the 3D image II are respectively equal; horizontal viewing angle of 3D image I and 3D image IIθ 1 Viewing angle at verticalθ 2 Horizontal resolutionR 1 Vertical resolutionR 2 Horizontal optical efficiencyφ 1 And vertical optical efficiencyφ 2 The method comprises the following steps of:
（3）
（4）
（5）
（6）
wherein,pis the horizontal pitch of the rectangular picture elements I,wis the horizontal aperture width of the rectangular pinhole,mis the number of rectangular picture elements I in the horizontal direction in the sub-rectangular microimage array I,lis the viewing distance of the object to be viewed,gis the spacing between the display screen and the rectangular pinhole array,xis the ratio of the vertical width to the horizontal width of the display screen.
Preferably, the ratio of the horizontal aperture width of the rectangular pinhole to the horizontal pitch of the rectangular picture element I is most suitable between 10% and 20%, and the ratio of the vertical aperture width of the rectangular pinhole to the vertical pitch of the rectangular picture element I is most suitable between 10% and 20%.
Drawings
FIG. 1 is a schematic view of the structure and horizontal parameters of the present invention
FIG. 2 is a schematic view of the vertical parameters of the structure and rectangular picture element I of the present invention
FIG. 3 is a schematic view showing the vertical parameters of the rectangular picture element II and the structure of the present invention
FIG. 4 is a schematic structural diagram of a rectangular microimage array according to the present invention
FIG. 5 is a schematic view of a polarizer according to the present invention
FIG. 6 is a schematic diagram of a rectangular pinhole array according to the present invention
The graphic reference numerals in the above figures are:
1. the display screen, 2, polaroid, 3, rectangular pinhole array, 4, polarized glasses I,5, polarized glasses II,6, sub rectangular micro image array I, 7, sub rectangular micro image array II,8, rectangular image element I, 9, rectangular image element II,10, sub polaroid I,11, sub polaroid II.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
An exemplary embodiment of the wide viewing angle and uniform resolution dual view 3D display device of the present invention will be described in detail, and the present invention will be described in further detail. It is noted that the following examples are given for the purpose of illustration only and are not to be construed as limiting the scope of the invention, since numerous insubstantial modifications and adaptations of the invention will be within the scope of the invention as viewed by one skilled in the art from the foregoing disclosure.
The invention provides a double-view 3D display device with wide view angle and uniform resolution, which is shown in figures 1, 2 and 3, and is characterized by comprising a display screen, a polaroid, a rectangular pinhole array, polarized glasses I and polarized glasses II; the horizontal central axis and the vertical central axis of the display screen, the polaroid and the rectangular pinhole array are respectively aligned correspondingly; the polaroid is attached to the display screen and is positioned between the display screen and the rectangular pinhole array; the rectangular pinhole array is arranged in front of the polaroid in parallel; the horizontal width of the display screen is equal to that of the polaroid, and the horizontal width of the display screen is larger than that of the rectangular pinhole array; the vertical width of the display screen is equal to that of the polaroid, and the vertical width of the display screen is larger than that of the rectangular pinhole array; the ratio of the horizontal width to the vertical width of the display screen is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array; horizontal width of display screenaAnd vertical widthbThe method comprises the following steps:
（1）
（2）
wherein,cis the horizontal width of the rectangular array of pinholes,lis the viewing distance of the object to be viewed,gis the spacing between the display screen and the rectangular pinhole array,xis the ratio of the vertical width to the horizontal width of the display screen;
the display screen is used for displaying a rectangular micro-image array, the rectangular micro-image array consists of a sub-rectangular micro-image array I and a sub-rectangular micro-image array II, the sub-rectangular micro-image array I consists of rectangular image elements I which are continuously arranged, and the sub-rectangular micro-image array II consists of rectangular image elements II which are continuously arranged, as shown in figure 4; the horizontal pitch of the rectangular picture element I is the same as that of the rectangular picture element II, and the vertical pitch of the rectangular picture element I is the same as that of the rectangular picture element II; the ratio of the horizontal pitch to the vertical pitch of the rectangular image element I and the ratio of the horizontal pitch to the vertical pitch of the rectangular image element II are equal to half of the ratio of the horizontal width to the vertical width of the display screen;
the polaroid consists of a sub-polaroid I and a sub-polaroid II, and the sub-polaroid I is orthogonal to the polarization direction of the sub-polaroid II, as shown in figure 5; the polarization direction of the polarized glasses I is the same as that of the sub-polaroid I, and the polarization direction of the polarized glasses II is the same as that of the sub-polaroid II;
in the rectangular pinhole array, the horizontal pitches of all the rectangular pinholes are the same, the vertical pitches of all the rectangular pinholes are the same, and the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to half of the ratio of the horizontal width to the vertical width of the rectangular pinhole array, as shown in fig. 6; the number of rectangular pinholes in the rectangular pinhole array is equal to the sum of the numbers of rectangular image elements I and rectangular image elements II in the rectangular microimage array; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to half the ratio of the horizontal width to the vertical width of the rectangular pinhole array;
the sub-rectangular micro-image array I is correspondingly aligned with the sub-polaroid I, and the sub-rectangular micro-image array II is correspondingly aligned with the sub-polaroid II; the horizontal width of the sub-rectangular micro-image array I is the same as that of the sub-polaroid I, and the vertical width of the sub-rectangular micro-image array I is the same as that of the sub-polaroid I; the horizontal width of the sub-rectangular micro-image array II is the same as that of the sub-polaroid II, and the vertical width of the sub-rectangular micro-image array II is the same as that of the sub-polaroid II; the sub-rectangular micro-image array I reconstructs a 3D image I through the rectangular pinhole array, and the 3D image I can only be seen through the polarized glasses I; the sub-rectangular microimage array II reconstructs a 3D image II through the rectangular pinhole array, and can only be seen through the polarized glasses II.
Preferably, the horizontal widths of the sub-rectangular micro-image array I, the sub-rectangular micro-image array II, the sub-polarizer I and the sub-polarizer II are the same, and the vertical widths of the sub-rectangular micro-image array I, the sub-rectangular micro-image array II, the sub-polarizer I and the sub-polarizer II are the same.
Preferably, the ratio of the horizontal aperture width to the vertical aperture width of the rectangular pinholes is equal to the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes.
Preferably, the horizontal viewing angle, the vertical viewing angle, the horizontal resolution, the vertical resolution, the horizontal optical efficiency, and the vertical optical efficiency of the 3D image I and the 3D image II are respectively equal; horizontal viewing angle of 3D image I and 3D image IIθ 1 Viewing angle at verticalθ 2 Horizontal resolutionR 1 Vertical resolutionR 2 Horizontal optical efficiencyφ 1 And vertical optical efficiencyφ 2 The method comprises the following steps of:
（3）
（4）
（5）
（6）
wherein,pis the horizontal pitch of the rectangular picture elements I,wis the horizontal aperture width of the rectangular pinhole,mis the number of rectangular picture elements I in the horizontal direction in the sub-rectangular microimage array I,lis the viewing distance of the object to be viewed,gis the spacing between the display screen and the rectangular pinhole array,xis the ratio of the vertical width to the horizontal width of the display screen.
Preferably, the ratio of the horizontal aperture width of the rectangular pinhole to the horizontal pitch of the rectangular picture element I is most suitable between 10% and 20%, and the ratio of the vertical aperture width of the rectangular pinhole to the vertical pitch of the rectangular picture element I is most suitable between 10% and 20%.
Display screen sagThe ratio of the straight width to the horizontal width is 3:4, and the horizontal width of the rectangular pinhole array iscHorizontal aperture width of rectangular pinhole of =40 mmw=2mm, viewing distance oflThe distance between the display screen and the rectangular pinhole array is =100 mmgThe number of rectangular image elements I in the horizontal direction of the sub-rectangular micro image array I is 10mmm=2. Obtaining horizontal and vertical widths of 44mm and 33mm of the display screen according to the formulas (1) and (2), respectively; the horizontal viewing angle, the vertical viewing angle, the horizontal resolution, the vertical resolution, the horizontal optical efficiency, and the vertical optical efficiency of the 3D image I and the 3D image II, which are obtained according to formulas (3), (4), (5), and (6), are 48 °, 68 °,2, 18%, and 18%, respectively.
Claims (5)
1. The double-view 3D display device with wide view angle and uniform resolution is characterized by comprising a display screen, a polaroid, a rectangular pinhole array, polarized glasses I and polarized glasses II; the horizontal central axis and the vertical central axis of the display screen, the polaroid and the rectangular pinhole array are respectively aligned correspondingly; the polaroid is attached to the display screen and is positioned between the display screen and the rectangular pinhole array; the rectangular pinhole array is arranged in front of the polaroid in parallel; the horizontal width of the display screen is equal to that of the polaroid, and the horizontal width of the display screen is larger than that of the rectangular pinhole array; the vertical width of the display screen is equal to that of the polaroid, and the vertical width of the display screen is larger than that of the rectangular pinhole array; the ratio of the horizontal width to the vertical width of the display screen is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array; horizontal width of display screenaAnd vertical widthbThe method comprises the following steps:
wherein,cis the horizontal width of the rectangular array of pinholes,lis the viewing distance of the object to be viewed,gis the spacing between the display screen and the rectangular pinhole array,xis the ratio of the vertical width to the horizontal width of the display screen;
the display screen is used for displaying a rectangular micro-image array, the rectangular micro-image array consists of a sub-rectangular micro-image array I and a sub-rectangular micro-image array II, the sub-rectangular micro-image array I consists of rectangular image elements I which are continuously arranged, and the sub-rectangular micro-image array II consists of rectangular image elements II which are continuously arranged; the horizontal pitch of the rectangular picture element I is the same as that of the rectangular picture element II, and the vertical pitch of the rectangular picture element I is the same as that of the rectangular picture element II; the ratio of the horizontal pitch to the vertical pitch of the rectangular image element I and the ratio of the horizontal pitch to the vertical pitch of the rectangular image element II are equal to half of the ratio of the horizontal width to the vertical width of the display screen;
the polaroid consists of a sub-polaroid I and a sub-polaroid II, and the sub-polaroid I is orthogonal to the polarization direction of the sub-polaroid II; the polarization direction of the polarized glasses I is the same as that of the sub-polaroid I, and the polarization direction of the polarized glasses II is the same as that of the sub-polaroid II;
in the rectangular pinhole array, the horizontal pitches of all the rectangular pinholes are the same, the vertical pitches of all the rectangular pinholes are the same, and the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to half of the ratio of the horizontal width to the vertical width of the rectangular pinhole array; the number of rectangular pinholes in the rectangular pinhole array is equal to the sum of the numbers of rectangular image elements I and rectangular image elements II in the rectangular microimage array; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to half the ratio of the horizontal width to the vertical width of the rectangular pinhole array;
the sub-rectangular micro-image array I is correspondingly aligned with the sub-polaroid I, and the sub-rectangular micro-image array II is correspondingly aligned with the sub-polaroid II; the horizontal width of the sub-rectangular micro-image array I is the same as that of the sub-polaroid I, and the vertical width of the sub-rectangular micro-image array I is the same as that of the sub-polaroid I; the horizontal width of the sub-rectangular micro-image array II is the same as that of the sub-polaroid II, and the vertical width of the sub-rectangular micro-image array II is the same as that of the sub-polaroid II; the sub-rectangular micro-image array I reconstructs a 3D image I through the rectangular pinhole array, and the 3D image I can only be seen through the polarized glasses I; the sub-rectangular microimage array II reconstructs a 3D image II through the rectangular pinhole array, and can only be seen through the polarized glasses II.
2. The wide viewing angle and uniform resolution dual view 3D display device of claim 1, wherein the horizontal widths of the sub-rectangular micro-image array I, the sub-rectangular micro-image array II, the sub-polarizer I and the sub-polarizer II are the same, and the vertical widths of the sub-rectangular micro-image array I, the sub-rectangular micro-image array II, the sub-polarizer I and the sub-polarizer II are the same.
3. The wide view and uniform resolution dual view 3D display device of claim 2, wherein a ratio of a horizontal aperture width to a vertical aperture width of the rectangular pinholes is equal to a ratio of a horizontal pitch to a vertical pitch of the rectangular pinholes.
4. The wide-viewing angle and uniform-resolution dual-view 3D display device according to claim 3, wherein the horizontal viewing angle, the vertical viewing angle, the horizontal resolution, the vertical resolution, the horizontal optical efficiency, the vertical optical efficiency of the 3D image I and the 3D image II are respectively equal; horizontal viewing angle of 3D image I and 3D image IIθ 1 Viewing angle at verticalθ 2 Horizontal resolutionR 1 Vertical resolutionR 2 Horizontal optical efficiencyφ 1 And vertical optical efficiencyφ 2 The method comprises the following steps of:
wherein,pis the horizontal pitch of the rectangular picture elements I,wis the horizontal aperture width of the rectangular pinhole,mis the number of rectangular picture elements I in the horizontal direction in the sub-rectangular microimage array I,lis the viewing distance of the object to be viewed,gis the spacing between the display screen and the rectangular pinhole array,xis the ratio of the vertical width to the horizontal width of the display screen.
5. The wide viewing angle and uniform resolution dual view 3D display device of claim 1, wherein the ratio of the horizontal aperture width of the rectangular pinhole to the horizontal pitch of the rectangular picture element I is most suitable between 10% and 20%, and the ratio of the vertical aperture width of the rectangular pinhole to the vertical pitch of the rectangular picture element I is most suitable between 10% and 20%.
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