Dual-view 3D display device

Abstract

The invention discloses a dual-view 3D display device, comprising a display screen, a gradient pitch rectangular polarization array, a gradient pitch rectangular pinhole array, polarization glasses I and polarization glasses II; the horizontal pitches of a plurality of consecutive columns of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the horizontal pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the left and right sides; the vertical pitches of a plurality of consecutive rows of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the vertical pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the upper and lower sides; the number of columns of a plurality of consecutive columns of rectangular pinholes with the same horizontal pitch located at the center of the gradient pitch rectangular pinhole array is equal to the number of rows of a plurality of consecutive rows of rectangular pinholes with the same vertical pitch located at the center of the gradient pitch rectangular pinhole array.

Description

Technical Field

[0001] The present invention relates to 3D display, and more particularly to a dual-view 3D display device. Background Art

[0002] Integrated imaging dual-view 3D display is a fusion of dual-view display technology and integrated imaging 3D display technology. It allows viewers to see different 3D images in different viewing directions. The traditional integrated imaging dual-view 3D display device based on a gradient pitch pinhole array has the following disadvantages:

[0003] (1) The pitch between two adjacent pinholes changes in geometric proportion, which increases the difficulty and cost of production.

[0004] (2) The distance between two adjacent 3D pixels increases in geometric proportion, which affects the uniformity of the 3D pixels.

[0005] (3) The horizontal resolution is not equal to the vertical resolution, which further exacerbates the problem of poor viewing experience caused by low resolution.

[0006] (4) Narrow viewing angle.

[0007] (5) There are problems with missing pixels in odd or even columns of 3D images. Summary of the invention

[0008] The present invention proposes a dual-view 3D display device, as shown in the attached Figure 1 and 2 As shown, it is characterized in that it includes a display screen, a gradient pitch rectangular polarization array, a gradient pitch rectangular pinhole array, polarization glasses I and polarization glasses II; the display screen, the gradient pitch rectangular polarization array and the gradient pitch rectangular pinhole array are placed in parallel and aligned accordingly; the gradient pitch rectangular polarization array is attached to the display screen and is located between the display screen and the gradient pitch rectangular pinhole array; the horizontal pitches of the continuous columns of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the horizontal pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the left and right sides; the vertical pitches of the continuous rows of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the vertical pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the upper and lower sides; the first i Horizontal pitch of rectangular pinholes P i , No. j Vertical pitch of the rows of rectangular pinholes Q j Calculated by the following formula

[0009] (1)

[0010] (2)

[0011] in, p is the horizontal pitch of the rectangular pinhole located at the center of the gradient pitch rectangular pinhole array, q is the vertical pitch of the rectangular pinhole at the center of the gradient pitch rectangular pinhole array, m is the number of rectangular pinholes in the horizontal direction in the gradient pitch rectangular pinhole array, n is the number of rectangular pinholes in the vertical direction of the gradient pitch rectangular pinhole array, a is the number of consecutive rows of rectangular pinholes with the same horizontal pitch located at the center of the gradient pitch rectangular pinhole array, b is the number of rows of consecutive rectangular pinholes with the same vertical pitch located at the center of the gradient pitch rectangular pinhole array, l is the viewing distance, g is the distance between the display screen and the gradient pitch rectangular pinhole array; Figure 3 As shown, the gradient pitch rectangular polarization array is composed of rectangular polarization units I and rectangular polarization units II arranged alternately in the horizontal and vertical directions, the polarization direction of the rectangular polarization unit I is orthogonal to the polarization direction of the rectangular polarization unit II; the horizontal pitch and vertical pitch of the rectangular polarization unit I are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular pinhole; the horizontal pitch and vertical pitch of the rectangular polarization unit II are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as the polarization direction of the rectangular polarization unit I, and the polarization direction of the polarization glasses II is the same as the polarization direction of the rectangular polarization unit II; the display screen is used to display the gradient pitch rectangular micro-image array; as shown in the attached Figure 4 As shown, the gradient pitch rectangular micro-image array is composed of rectangular image elements I and rectangular image elements II arranged alternately in the horizontal and vertical directions; the rectangular image element I is aligned with the rectangular polarization unit I, and the horizontal pitch and vertical pitch of the rectangular image element I are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular polarization unit I; the rectangular image element II is aligned with the rectangular polarization unit II, and the horizontal pitch and vertical pitch of the rectangular image element II are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular polarization unit II; the rectangular image element I reconstructs the 3D image I through the corresponding rectangular polarization unit I and the rectangular pinhole, and can only be seen through the polarization glasses I; the rectangular image element II reconstructs the 3D image II through the corresponding rectangular polarization unit II and the rectangular pinhole, and can only be seen through the polarization glasses II.

[0012] Preferably, the number of consecutive columns of rectangular pinholes with the same horizontal pitch located at the center of the gradient pitch rectangular pinhole array is equal to the number of consecutive rows of rectangular pinholes with the same vertical pitch located at the center of the gradient pitch rectangular pinhole array.

[0013] Preferably, the horizontal widths of the display screen, the gradient pitch rectangular polarization array and the gradient pitch rectangular pinhole array are all the same, and the vertical widths of the display screen, the gradient pitch rectangular polarization array and the gradient pitch rectangular pinhole array are all the same.

[0014] Preferably, the ratio of the vertical pitch to the horizontal pitch of the rectangular pinhole located at the center of the gradient pitch rectangular pinhole array is equal to the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array.

[0015] Preferably, the number of rectangular pinholes in the horizontal direction and the number of rectangular pinholes in the vertical direction of the gradient pitch rectangular pinhole array are both even numbers; the horizontal resolution and vertical resolution of the 3D image I and the 3D image II are equal respectively; the horizontal resolution of each 3D image is equal to R 1. Vertical resolution R 2 are:

[0016] (3)

[0017] (4)

[0018] in, m is the number of rectangular pinholes in the horizontal direction of the gradient pitch rectangular pinhole array.

[0019] Preferably, the ratio of the vertical aperture width to the horizontal aperture width of the rectangular pinhole is equal to the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array.

[0020] Preferably, the horizontal viewing angle and the vertical viewing angle of the 3D image I and the 3D image II are respectively equal; the horizontal viewing angle of each 3D image is equal to the vertical viewing angle of the 3D image I. θ 1. Vertical viewing angle θ 2 are:

[0021] (5)

[0022] (6)

[0023] in, P 1 is the horizontal pitch of the first row of rectangular pinholes in the gradient pitch rectangular pinhole array, w is the horizontal aperture width of the rectangular pinhole, m is the number of rectangular pinholes in the horizontal direction in the gradient pitch rectangular pinhole array, c is the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array, l is the viewing distance, g is the distance between the display screen and the gradient pitch rectangular pinhole array. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 Schematic diagram of the structure and horizontal parameters of the present invention

[0025] Attached Figure 2 Schematic diagram of the structure and vertical parameters of the present invention

[0026] Attached Figure 3 The schematic diagram of the structure of the gradient pitch rectangular polarization array of the present invention is

[0027] Attached Figure 4 The schematic diagram of the structure of the gradient pitch rectangular micro-image array of the present invention is

[0028] The diagram numbers in the above drawings are:

[0029] 1. Display screen, 2. Gradient pitch rectangular polarization array, 3. Gradient pitch rectangular pinhole array, 4. Polarization glasses I, 5. Polarization glasses II, 6. Rectangular polarization unit I, 7. Rectangular polarization unit II, 8. Rectangular image element I, 9. Rectangular image element II.

[0030] It should be understood that the above drawings are only schematic and are not drawn to scale. DETAILED DESCRIPTION

[0031] A typical embodiment of a dual-view 3D display device of the present invention is described in detail below to further describe the present invention. It is necessary to point out that the following embodiments are only used to further illustrate the present invention and cannot be understood as limiting the protection scope of the present invention. Persons skilled in the art may make some non-essential improvements and adjustments to the present invention based on the above content of the present invention, which still fall within the protection scope of the present invention.

[0032] The present invention proposes a dual-view 3D display device, as shown in the attached Figure 1 and 2 As shown, it is characterized in that it includes a display screen, a gradient pitch rectangular polarization array, a gradient pitch rectangular pinhole array, polarization glasses I and polarization glasses II; the display screen, the gradient pitch rectangular polarization array and the gradient pitch rectangular pinhole array are placed in parallel and aligned accordingly; the gradient pitch rectangular polarization array is attached to the display screen and is located between the display screen and the gradient pitch rectangular pinhole array; the horizontal pitches of the continuous columns of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the horizontal pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the left and right sides; the vertical pitches of the continuous rows of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the vertical pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the upper and lower sides; the first i Horizontal pitch of rectangular pinholes P i , No. jVertical pitch of the rows of rectangular pinholes Q j Calculated by the following formula

[0033] (1)

[0034] (2)

[0035] in, p is the horizontal pitch of the rectangular pinhole located at the center of the gradient pitch rectangular pinhole array, q is the vertical pitch of the rectangular pinhole at the center of the gradient pitch rectangular pinhole array, m is the number of rectangular pinholes in the horizontal direction in the gradient pitch rectangular pinhole array, n is the number of rectangular pinholes in the vertical direction of the gradient pitch rectangular pinhole array, a is the number of consecutive rows of rectangular pinholes with the same horizontal pitch located at the center of the gradient pitch rectangular pinhole array, b is the number of rows of consecutive rectangular pinholes with the same vertical pitch located at the center of the gradient pitch rectangular pinhole array, l is the viewing distance, g is the distance between the display screen and the gradient pitch rectangular pinhole array; Figure 3 As shown, the gradient pitch rectangular polarization array is composed of rectangular polarization units I and rectangular polarization units II arranged alternately in the horizontal and vertical directions, the polarization direction of the rectangular polarization unit I is orthogonal to the polarization direction of the rectangular polarization unit II; the horizontal pitch and vertical pitch of the rectangular polarization unit I are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular pinhole; the horizontal pitch and vertical pitch of the rectangular polarization unit II are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as the polarization direction of the rectangular polarization unit I, and the polarization direction of the polarization glasses II is the same as the polarization direction of the rectangular polarization unit II; the display screen is used to display the gradient pitch rectangular micro-image array; as shown in the attached Figure 4 As shown, the gradient pitch rectangular micro-image array is composed of rectangular image elements I and rectangular image elements II arranged alternately in the horizontal and vertical directions; the rectangular image element I is aligned with the rectangular polarization unit I, and the horizontal pitch and vertical pitch of the rectangular image element I are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular polarization unit I; the rectangular image element II is aligned with the rectangular polarization unit II, and the horizontal pitch and vertical pitch of the rectangular image element II are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular polarization unit II; the rectangular image element I reconstructs the 3D image I through the corresponding rectangular polarization unit I and the rectangular pinhole, and can only be seen through the polarization glasses I; the rectangular image element II reconstructs the 3D image II through the corresponding rectangular polarization unit II and the rectangular pinhole, and can only be seen through the polarization glasses II.

[0036] Preferably, the number of consecutive columns of rectangular pinholes with the same horizontal pitch located at the center of the gradient pitch rectangular pinhole array is equal to the number of consecutive rows of rectangular pinholes with the same vertical pitch located at the center of the gradient pitch rectangular pinhole array.

[0037] Preferably, the horizontal widths of the display screen, the gradient pitch rectangular polarization array and the gradient pitch rectangular pinhole array are all the same, and the vertical widths of the display screen, the gradient pitch rectangular polarization array and the gradient pitch rectangular pinhole array are all the same.

[0038] Preferably, the ratio of the vertical pitch to the horizontal pitch of the rectangular pinhole located at the center of the gradient pitch rectangular pinhole array is equal to the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array.

[0039] Preferably, the number of rectangular pinholes in the horizontal direction and the number of rectangular pinholes in the vertical direction of the gradient pitch rectangular pinhole array are both even numbers; the horizontal resolution and vertical resolution of the 3D image I and the 3D image II are equal respectively; the horizontal resolution of each 3D image is equal to R 1. Vertical resolution R 2 are:

[0040] (3)

[0041] (4)

[0042] in, m is the number of rectangular pinholes in the horizontal direction of the gradient pitch rectangular pinhole array.

[0043] Preferably, the ratio of the vertical aperture width to the horizontal aperture width of the rectangular pinhole is equal to the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array.

[0044] Preferably, the horizontal viewing angle and the vertical viewing angle of the 3D image I and the 3D image II are respectively equal; the horizontal viewing angle of each 3D image is equal to the vertical viewing angle of the 3D image I. θ 1. Vertical viewing angle θ 2 are:

[0045] (5)

[0046] (6)

[0047] in, P 1 is the horizontal pitch of the first row of rectangular pinholes in the gradient pitch rectangular pinhole array, w is the horizontal aperture width of the rectangular pinhole, m is the number of rectangular pinholes in the horizontal direction in the gradient pitch rectangular pinhole array, cis the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array, l is the viewing distance, g is the distance between the display screen and the gradient pitch rectangular pinhole array.

[0048] The horizontal pitch of the rectangular pinhole located at the center of the gradient pitch rectangular pinhole array is p =10mm, the vertical pitch of the rectangular pinhole located in the center of the gradient pitch rectangular pinhole array is q =6mm, the number of rectangular pinholes in the horizontal direction in the gradient pitch rectangular pinhole array is m =50, the number of rectangular pinholes in the vertical direction of the gradient pitch rectangular pinhole array is n =50, the number of consecutive rows of rectangular pinholes with the same horizontal pitch located in the center of the gradient pitch rectangular pinhole array is a = 10, the number of rows of continuous rectangular pinholes with the same vertical pitch located in the center of the gradient pitch rectangular pinhole array is b =10, viewing distance is l =4010mm, the distance between the display screen and the gradient pitch rectangular pinhole array is g =10mm, the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array is c = 0.6, the horizontal aperture width of the rectangular pinhole is w =2mm, the vertical aperture width of the rectangular pinhole is v=1.2mm. According to formula (1), the horizontal pitches of the 1st to 50th columns of the rectangular pinhole array in the gradient pitch rectangular pinhole array are 11mm, 11mm, 11mm, 11mm, 11mm, 11mm, 11mm, 11mm, 10.5 ... 0mm, 10mm, 10mm, 10mm, 10mm, 10.5mm, 10.5mm, 10.5mm, 10.5mm, 10.5mm, 10.5mm, 10.5mm, 10.5mm, 10.5mm, 10.5mm, 11mm, 11mm, 11mm, 11mm, 11mm, 11mm, 11mm, 11mm, 11mm, 11mm; According to formula (2), the rectangular pinhole arrays in the 1st to 50th rows of the gradient pitch rectangular pinhole array are The vertical pitches are 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.3mm, 6.3mm, 6.3mm, 6.3mm , 6.3mm, 6.3mm, 6.3mm, 6.3mm, 6.3mm, 6.3mm, 6mm, 6mm, 6mm, 6mm, 6mm, 6mm, 6mm, 6mm, 6mm, 6mm, 6.3mm, 6.3mm, 6. 3mm, 6.3mm, 6.3mm, 6.3mm, 6.3mm, 6.3mm, 6.3mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm, 6.6mm; According to equations (3), (4), (5), and (6), the horizontal resolution, vertical resolution, horizontal viewing angle, and vertical viewing angle of 3D image I and 3D image II are 25, 25, 60°, and 38°, respectively. The number of pixels in each row and column of 3D image I is 25, and the number of pixels in each row and column of 3D image II is 25.

Claims

1. A dual-view 3D display device, characterized in that: It includes a display screen, a gradient pitch rectangular polarization array, a gradient pitch rectangular pinhole array, polarization glasses I and polarization glasses II; The display screen, the gradient pitch rectangular polarization array and the gradient pitch rectangular pinhole array are placed in parallel and aligned accordingly; The horizontal widths of the display screen, the gradient pitch rectangular polarization array, and the gradient pitch rectangular pinhole array are all the same, and the vertical widths of the display screen, the gradient pitch rectangular polarization array, and the gradient pitch rectangular pinhole array are all the same; the gradient pitch rectangular polarization array is attached to the display screen and is located between the display screen and the gradient pitch rectangular pinhole array; the horizontal pitches of the continuous columns of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the horizontal pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the left and right sides; the vertical pitches of the continuous rows of rectangular pinholes located at the center of the gradient pitch rectangular pinhole array are the same, and the vertical pitch of the gradient pitch rectangular pinhole array gradually increases from the center to the top and bottom sides; The number of columns of the continuous multiple columns of rectangular pinholes with the same horizontal pitch at the center of the gradient pitch rectangular pinhole array is equal to the number of rows of the continuous multiple rows of rectangular pinholes with the same vertical pitch at the center of the gradient pitch rectangular pinhole array; the ratio of the vertical pitch to the horizontal pitch of the rectangular pinhole at the center of the gradient pitch rectangular pinhole array is equal to the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array; the ratio of the vertical aperture width to the horizontal aperture width of the rectangular pinhole is equal to the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array; the number of rectangular pinholes in the horizontal direction and the number of rectangular pinholes in the vertical direction of the gradient pitch rectangular pinhole array are both even numbers; the horizontal pitch P of the i-th column of the rectangular pinholes in the gradient pitch rectangular pinhole array is equal to the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array. i , the vertical pitch Q of the j-th row of rectangular pinholes j Calculated by the following formula Where p is the horizontal pitch of the rectangular pinhole at the center of the gradient pitch rectangular pinhole array, q is the vertical pitch of the rectangular pinhole at the center of the gradient pitch rectangular pinhole array, m is the number of rectangular pinholes in the horizontal direction of the gradient pitch rectangular pinhole array, n is the number of rectangular pinholes in the vertical direction of the gradient pitch rectangular pinhole array, a is the number of consecutive columns of rectangular pinholes with the same horizontal pitch at the center of the gradient pitch rectangular pinhole array, b is the number of consecutive rows of rectangular pinholes with the same vertical pitch at the center of the gradient pitch rectangular pinhole array, l is the viewing distance, g is the distance between the viewing angle and ... is the distance between the display screen and the gradient pitch rectangular pinhole array; the gradient pitch rectangular polarization array is composed of rectangular polarization units I and rectangular polarization units II arranged alternately in the horizontal and vertical directions, and the polarization direction of the rectangular polarization unit I is orthogonal to the polarization direction of the rectangular polarization unit II; the horizontal pitch and vertical pitch of the rectangular polarization unit I are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular pinhole; the horizontal pitch and vertical pitch of the rectangular polarization unit II are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is equal to the horizontal pitch and vertical pitch of the rectangular polarization unit II. The polarization directions of the rectangular polarization unit I are the same, and the polarization direction of the polarization glasses II is the same as the polarization direction of the rectangular polarization unit II; the display screen is used to display a gradient pitch rectangular micro-image array; the gradient pitch rectangular micro-image array is composed of rectangular image elements I and rectangular image elements II arranged alternately in the horizontal and vertical directions; the rectangular image element I is aligned with the rectangular polarization unit I, and the horizontal pitch and vertical pitch of the rectangular image element I are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular polarization unit I; the rectangular image element II is aligned with the rectangular polarization unit II, and the horizontal pitch and vertical pitch of the rectangular image element II are respectively equal to the horizontal pitch and vertical pitch of the corresponding rectangular polarization unit II; the rectangular image element I reconstructs the 3D image I through the corresponding rectangular polarization unit I and the rectangular pinhole, and can only be seen through the polarization glasses I; the rectangular image element II reconstructs the 3D image II through the corresponding rectangular polarization unit II and the rectangular pinhole, and can only be seen through the polarization glasses II; the horizontal resolution and vertical resolution of the 3D image I are equal to the 3D image II; the horizontal resolution R1 and the vertical resolution R2 of each 3D image are respectively:

2. A dual-view 3D display device according to claim 1, characterized in that: The horizontal viewing angle and the vertical viewing angle of the 3D image I and the 3D image II are respectively equal; the horizontal viewing angle θ1 and the vertical viewing angle θ2 of each 3D image are respectively: Among them, P1 is the horizontal pitch of the first column of rectangular pinholes in the gradient pitch rectangular pinhole array, w is the horizontal aperture width of the rectangular pinholes, m is the number of rectangular pinholes in the horizontal direction of the gradient pitch rectangular pinhole array, c is the ratio of the vertical width to the horizontal width of the gradient pitch rectangular pinhole array, l is the viewing distance, and g is the spacing between the display screen and the gradient pitch rectangular pinhole array.

Images