WO2018001243A1

WO2018001243A1 - Integral imaging dual-view 3d display device having wide viewing angle

Info

Publication number: WO2018001243A1
Application number: PCT/CN2017/090341
Authority: WO
Inventors: 吴非; 樊为
Original assignee: 成都工业学院
Priority date: 2016-06-28
Filing date: 2017-06-27
Publication date: 2018-01-04
Also published as: CN105954884B; CN105954884A

Abstract

An integral imaging dual-view 3D display device having a wide viewing angle comprises a display screen (1), a barrier array (3), and a gradient-pitch pinhole array (2). The display screen (1) is used for displaying a micro-image array (4), the micro-image array (4) consists of first image elements (5) and second image elements (6), and the first image elements (5) and the second image elements (6) of the micro-image array (4) respectively form, by means of pinholes of the gradient-pitch pinhole array (2), a first viewing region (7) used for watching a first 3D scene and a second viewing region (8) used for watching a second 3D scene. In this way, two different 3D scenes in the two viewing regions can be watched, and integral imaging dual-view 3D display having a wide viewing angle is achieved.

Description

Integrated imaging dual-view 3D display device with wide viewing angle

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 2016104941836, entitled "Integrated Imaging Dual View 3D Display Device of Wide Angle of View", filed on June 28, 2016, the entire contents of which are incorporated by reference. In this application.

Technical field

The invention relates to the field of dual-view 3D display technology, in particular to an integrated imaging dual-view 3D display device with wide viewing angle.

Background technique

Dual-view display is a new type of display that has appeared in recent years. Its principle is that by displaying two different pictures simultaneously on one display screen, viewers in different viewing directions can only see one picture, thus achieving A display meets the different needs of multiple viewers simultaneously.

The integrated imaging 3D display is a true 3D display that does not require any visual aids. The integrated imaging 3D display utilizes the optical path reversible principle, records the stereo information of the 3D scene onto the image recording device through the microlens array, generates a micro image array, and then displays the micro image array on the display screen and reconstructs through the microlens array. A stereoscopic image of the original 3D scene.

The integrated imaging dual view 3D display is a fusion of the above two display technologies. It allows viewers to see 3D images in different viewing directions without wearing a visual aid device. However, the traditional integrated imaging dual-view 3D display has disadvantages such as narrow viewing angle, so its application range is limited. The viewing angle θ of the traditional integrated imaging dual-view 3D display is:

Where p is the horizontal pitch of the image element, g is the distance between the display screen and the progressive pitch pinhole array, and m is the number of image elements in the horizontal direction of the micro image array.

Summary of the invention

The object of the present invention is to solve the problem that the conventional integrated imaging dual-view 3D display technology has a narrow viewing angle, and further expand the application range of the integrated imaging dual-view 3D display.

In order to achieve the above object, the present invention provides a wide viewing angle integrated imaging dual view 3D display device including a display screen, a barrier array and a progressive pitch pinhole array; the display screen for displaying a micro image array; The micro image array is composed of a first image element and a second image element; the first image element and the second image element of the micro image array are respectively formed through the pinholes of the progressive pitch pinhole array for viewing the first a first viewport of the 3D scene and a second viewport for viewing the second 3D scene; wherein

The pinholes in the same column of the progressive pitch pinhole array have the same horizontal pitch, the same vertical pitch, and the pinholes in the same row have the same vertical pitch, and the horizontal pitch gradually increases from the center of the row to the edge of the row. Increase

The first image elements in the micro image array are successively arranged to form a first micro image sub-array, and the second image elements in the micro image array are continuously arranged to form a second micro image sub-array, the first micro image sub-array and the The number of rows of the two micro image sub-array is the same as the micro image array, and the number of columns is one half of the micro image array;

a boundary between a first image element and a second image element in the micro image array and a pinhole on a center column of the progressive pitch pinhole array and a barrier layer on a central column of the barrier array, wherein The barrier on the center column of the barrier array has one end disposed at a boundary of the first image element and the second image element, and the other end of which is disposed at a pinhole corresponding to a boundary between the first image element and the second image element Internally, the pinhole is divided into two sub-pinholes, and the first image element and the second image element respectively pass through The sub-pinholes should project an image;

The remaining first image element and the second image element in the micro image array respectively correspond to the remaining pinholes in the progressive pitch pinhole array, and the remaining barriers in the barrier array are disposed at one end thereof. At a junction between the first image element and the second image element, the other end of which is disposed on the progressive pitch pinhole array, and at the first image element or the second image element Wherein the corresponding pinhole is located within the barrier of its interface, wherein the pinhole is disposed adjacent the center of the microimage array.

According to a specific embodiment, in the first picture element or the second picture element, its corresponding pinhole is placed against the barrier at its junction and near the center of the micro-image array.

According to a specific embodiment, the horizontal pitch of the first image element and the second image element is the same as the horizontal pitch of the respective corresponding pinhole.

According to a specific embodiment, the vertical pitch of the first image element and the second image element are the same as the vertical pitch of the respective corresponding pinholes.

According to a specific embodiment, the sum of the number of the first image element and the second image element in the micro image array is an even number.

According to a specific embodiment, the sum of the number of the first image element and the second image element in the micro image array is equal to the number of pinholes in the progressive pitch pinhole array.

According to a specific embodiment, the number of barriers in the barrier array is one less than the number of the first image element and the second image element in the micro image array.

According to a specific embodiment, the display screen is one of a liquid crystal display, a plasma display, and an organic electroluminescent display.

According to a specific embodiment, the horizontal pitch H _i of the i-th column pinhole on the progressive pitch pinhole array is:

Where ceil() is rounded up, floor() is rounded down, i is a positive integer less than or equal to m, and p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array. The viewing distance is l, g is the distance between the array of tapered pitch pinholes and the display screen, and m is the number of pinholes in the horizontal direction of the progressive pitch pinhole array.

According to a specific embodiment, the viewing angles of the first viewing zone and the second viewing zone are:

Where p is the horizontal pitch of the image elements located at the center of the micro image array, and g is the pitch of the progressive pitch pinhole array and the display screen.

According to a specific embodiment, the p=5 mm, the l=105 mm, the g=5 mm, the micro image array and the progressive pitch pinhole array each comprise 10×10 units, wherein the horizontal direction The upper 10 units, 10 units in the vertical direction, the horizontal pitch of the 1 to 10 column pinholes are 7.3205mm, 6.655mm, 6.05mm, 5.5mm, 5mm, 5mm, 5.5mm, 6.05mm, 6.655mm, 7.3205mm.

According to a specific embodiment, the θ = 32°.

Compared with the prior art, the beneficial effects of the present invention: the wide-view integrated imaging dual-view 3D display device of the present invention can not only view two different 3D scenes in two viewing zones, but also realize integrated imaging with wide viewing angles. See 3D display.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Figure 1 is a schematic view of the structure of the present invention;

2 is a schematic structural view of a micro image array of the present invention;

3 is a first 3D scene view viewed by the first viewing zone of the present invention;

4 is a second 3D scene view viewed from a second viewing zone of the present invention.

List of reference signs

1-display 2-graded pitch pinhole array 3-barrier array 4-micro image array 5-first image element 6-second image element 7-first viewing zone 8-second viewing zone.

detailed description

The present invention will be further described in detail below in conjunction with the specific embodiments. However, the scope of the above-mentioned subject matter of the present invention should not be construed as being limited to the following embodiments, and the technology implemented based on the present invention is within the scope of the present invention.

FIG. 1 and FIG. 2 respectively show a schematic structural view of the present invention and a schematic structural view of the micro image array of the present invention; wherein the wide viewing angle integrated imaging dual view 3D display device of the present invention includes a display screen 1, a barrier array 3, and a gradient Pitch pinhole array 2; display screen 1 for displaying micro image array 4; micro image array 4 consisting of first image element 5 and second image element 6; first image element 5 and second image of micro image array 4 The element 6 forms a first viewing zone 7 for viewing the first 3D scene and a second viewing zone 8 for viewing the second 3D scene, respectively, by the pinholes of the progressive pitch pinhole array 2. The first 3D scene graph and the second 3D scene graph are respectively shown in FIG. 3 and FIG. 4 . The first in the micro image array 4 The sum of the number of image elements 5 and the second picture elements 6 is equal to the number of pinholes in the progressive pitch pinhole array 2.

The pinholes in the same column of the progressive pitch pinhole array 2 have the same horizontal pitch, the same vertical pitch, and the pinholes in the same row have the same vertical pitch, and the horizontal pitch is from the center of the row to the edge of the row. Gradually increase. The horizontal and vertical pitch of the image elements in the micro image array 4 are the same as the horizontal and vertical pitches of the corresponding pinholes. That is, in the embodiment of the present invention, the horizontal pitch of the first picture element 5 and the second picture element 6 is the same as the horizontal pitch of the corresponding pinholes, and the vertical pitch of the first picture element 5 and the second picture element 6 The vertical pitch of the pinholes corresponding to each is the same. As a way, the number of barriers in the barrier array 3 is one less than the number of the first image element 5 and the second image element 6 in the micro image array.

The first image elements 5 in the micro image array 4 are successively arranged to form a first micro image sub-array, and the second image elements 6 in the micro image array 4 are successively arranged to form a second micro image sub-array, the first micro image sub-array and the The number of rows of the two micro image sub-arrays is the same as that of the micro image array, and the number of columns is half that of the micro image array.

The intersection of the first image element 5 and the second image element 6 in the micro image array 4 corresponds to the pinholes on the center column of the progressive pitch pinhole array 2 and the barriers on the center column of the barrier array 3, wherein the barrier array 3, the barrier on the center column is disposed at a boundary between the first image element and the second image element, and the other end is disposed in a pinhole corresponding to the intersection of the first image element 5 and the second image element 6, The pinhole is divided into two sub-pinholes, and the first image element 5 and the second image element 6 respectively project an image through the corresponding sub-pinhole.

The remaining first image element 5 and second image element 6 in the micro image array 4 are respectively in one-to-one correspondence with the remaining pinholes in the progressive pitch pinhole array 2, and one end of the remaining barriers in the barrier array 3 is disposed in the first image. At the junction between the elements 5 and the second picture element 6, the other end of the remaining barriers is disposed on the progressive pitch pinhole array 2, and in the first picture element 5 or the second picture element 6, An image element 5 Or the pinhole corresponding to the second picture element 6 is located in the range of the barrier at the boundary of the first picture element 5 and the second picture element 6, wherein the pinhole is located near the center of the micro image array 4. The sum of the number of the first image element 5 and the second image element 6 in the micro image array 4 is an even number, and the first image element 5 and the second image element 6 in the micro image array 4 The number sum is one less than the number of pinholes in the tapered pitch pinhole array 2.

Specifically, in the first picture element 5 or the second picture element 6, the corresponding pinholes are closely adjacent to the boundary between the first picture element 5 and the second picture element 6 and close to the barrier at the center of the micro image array 4. Settings.

In implementation, the display screen of the present invention is one of a liquid crystal display, a plasma display, and an organic electroluminescent display.

Specifically, the horizontal pitch H _i of the pin holes of the i-th column on the progressive pitch pinhole array 2 is:

Where ceil() is rounded up, floor() is rounded down, i is a positive integer less than or equal to m, and p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array, viewing distance l, g is the distance between the progressive pitch pinhole array and the display screen, and m is the number of pinholes in the horizontal direction of the progressive pitch pinhole array.

The pitch of the pinholes at the center of the progressive pitch pinhole array is p=5mm, the viewing distance is l=105mm, the distance between the progressive pitch pinhole array and the display screen is g=5mm, the micro image array and the gradient pitch The pinhole arrays each contain 10 x 10 cells, that is, 10 cells in the horizontal direction and 10 cells in the vertical direction. According to the calculation formula of the horizontal pitch described above, the horizontal pitches of the pinholes of the first to the tenth columns are: 7.3205 mm, 6.655 mm, 6.05 mm, 5.5 mm, 5 mm, 5 mm, 5.5 mm, 6.05 mm, 6.655mm, 7.3205mm.

specific,

The pitch of the pinholes at the center of the progressive pitch pinhole array is p=5mm, and the distance between the progressive pitch pinhole array and the display screen is g=5mm, for example, according to the following formula

The viewing angle of view θ=32° of the present invention is calculated, while the viewing angle θ of the conventional integrated imaging dual-view 3D display technology is θ=20°. Thus, the present invention is capable of viewing two different 3D scenes in two viewing zones and achieving an integrated imaging dual view 3D display of wide viewing angles.

The embodiments of the present invention have been described in detail above with reference to the drawings, but the invention is not limited to the embodiments described above, and those skilled in the art can make various kinds without departing from the spirit and scope of the claims of the present application. Modified or modified.

Industrial applicability

The invention provides a wide viewing angle integrated imaging dual view 3D display device, comprising a display screen, a barrier array and a progressive pitch pinhole array; wherein the display screen is used for displaying a micro image array; the micro image array is composed of a first image element and a Forming two image elements; the first image element and the second image element of the micro image array pass through the pinholes of the progressive pitch pinhole array, respectively forming a first viewing zone for viewing the first 3D scene and for viewing the second 3D The second viewport of the scene. Thereby, it is possible to realize not only two different 3D scenes can be viewed in two viewing zones, but also an integrated imaging dual-view 3D display with wide viewing angle.

Claims

An integrated imaging dual-view 3D display device with wide viewing angle, comprising: a display screen, a barrier array and a progressive pitch pinhole array; the display screen is for displaying a micro image array; the micro image array is first Forming an image element and a second image element; the first image element and the second image element of the micro image array pass through the pinholes of the progressive pitch pinhole array to form a first view for viewing the first 3D scene, respectively a second viewport for viewing the second 3D scene; wherein

The pinholes in the same column of the progressive pitch pinhole array have the same horizontal pitch, the same vertical pitch, and the pinholes in the same row have the same vertical pitch, and the horizontal pitch gradually increases from the center of the row to the edge of the row. Increase

The first image elements in the micro image array are successively arranged to form a first micro image sub-array, and the second image elements in the micro image array are continuously arranged to form a second micro image sub-array, the first micro image sub-array and the The number of rows of the two micro image sub-array is the same as the micro image array, and the number of columns is one half of the micro image array;

a boundary between a first image element and a second image element in the micro image array and a pinhole on a center column of the progressive pitch pinhole array and a barrier layer on a central column of the barrier array, wherein The barrier on the center column of the barrier array has one end disposed at a boundary of the first image element and the second image element, and the other end of which is disposed at a pinhole corresponding to a boundary between the first image element and the second image element Internally, the pinhole is divided into two sub-pinholes, and the first image element and the second image element respectively project an image through the corresponding sub-pinhole;

The remaining first image element and the second image element in the micro image array respectively correspond to the remaining pinholes in the progressive pitch pinhole array, and the remaining barriers in the barrier array are disposed at one end thereof. At the interface between the first picture element and the second picture element, the other end of which is disposed at the a variable pitch pinhole array, and in the first image element or the second image element, a corresponding pinhole is located within a barrier of a boundary thereof, wherein the pinhole is adjacent to the micro image array Set at the center.
The wide viewing angle dual-view 3D display device according to claim 1, wherein in the first image element or the second image element, a corresponding pinhole is in close contact with the first A barrier is disposed on the interface of the image element and the second image element and adjacent to the center of the micro image array.
A wide viewing angle dual-view 3D display device according to claim 1, wherein the horizontal pitch of the first image element and the second image element is the same as the horizontal pitch of the respective corresponding pinhole.
The wide viewing angle dual-view 3D display device according to claim 1, wherein the vertical pitch of the first image element and the second image element is the same as the vertical pitch of the corresponding pinhole.
The wide viewing angle dual-view 3D display device according to claim 1, wherein the sum of the number of the first image element and the second image element in the micro image array is an even number.
The wide-view integrated imaging dual-view 3D display device according to claim 1, wherein a sum of the first image element and the second image element in the micro image array is equal to the gradation pitch The number of pinholes in the pinhole array.
The wide viewing angle dual-view 3D display device of claim 1 , wherein the number of barriers in the barrier array is greater than the first image element and the second image element in the micro image array The number and the less one.
The wide viewing angle dual-view 3D display device according to claim 1, wherein the display screen is one of a liquid crystal display, a plasma display, and an organic electroluminescence display.
A wide viewing angle dual-view 3D display device according to claim 1 or 2, wherein the horizontal pitch H i of the i-th pinhole on the progressive pitch pinhole array is:

Where ceil() is rounded up, floor() is rounded down, i is a positive integer less than or equal to m, and p is the horizontal pitch of the pinhole at the center of the progressive pitch pinhole array. The viewing distance is l, g is the distance between the array of tapered pitch pinholes and the display screen, and m is the number of pinholes in the horizontal direction of the progressive pitch pinhole array.
The wide viewing angle dual-view 3D display device according to claim 9, wherein the viewing angles of the first viewing zone and the second viewing zone are:

Where p is the horizontal pitch of the image elements located at the center of the micro image array, and g is the pitch of the progressive pitch pinhole array and the display screen.
A wide viewing angle dual-view 3D display device according to claim 10, wherein said p=5 mm, said l=105 mm, said g=5 mm, said micro image array and a progressive pitch needle The hole arrays each comprise 10×10 cells, wherein 10 cells in the horizontal direction and 10 cells in the vertical direction, the horizontal pitches of the pinholes of 1 to 10 columns are 7.3205 mm, 6.655 mm, 6.05 mm, 5.5 mm, respectively. 5mm, 5mm, 5.5mm, 6.05mm, 6.655mm, 7.3205mm.
A wide viewing angle integrated imaging dual view 3D display device according to claim 10, wherein said θ = 32°.