Three-dimensional image display system

Patent metadata

Field	Value
Publication number	US-11295642-B2
Application number	US-202016836386-A
Country	US
Kind code	B2
Filing date	Mar 31, 2020
Priority date	Oct 28, 2019
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A three-dimensional image display system includes: a vapor generating component, a rotating component, a shell, a lens component, a support component and a display device; where the vapor generating component is configured to control an vapor ejection from an air outlet; the rotating component is configured to drive a rotating disk of the rotating component to rotate at a preset refresh frequency and control a nozzle on the rotating disk to eject vapor to form a vapor column; the display device includes a plurality of columns of pixel units, and one column of pixel units corresponding to the vapor column is configured to display three-dimensional image data when receiving the three-dimensional image data; the lens component includes a plurality of lenses, and each lens is configured to focus light emitted by a corresponding pixel unit, to form a real image at an image plane at the vapor column.

First claim

What is claimed is:

1. A three-dimensional image display system, comprising:
a vapor generating component, a rotating component on the vapor generating component, a shell above a rotating disk in the rotating component, a lens component outside the shell, a support component above the rotating disk and in the shell and a display device on the support component;
wherein the vapor generating component is configured to control a vapor ejection from an air outlet;
the rotating component is configured to drive a rotating disk of the rotating component to rotate at a preset refresh frequency and control a nozzle on the rotating disk to eject vapor to form a vapor column;
the display device comprises a plurality of columns of pixel units, and one column of pixel units corresponding to the vapor column is configured to display three-dimensional image data when receiving the three-dimensional image data;
the lens component comprises a plurality of lenses, and each lens is configured to focus light emitted by a corresponding pixel unit, to form a real image at an image plane at the vapor column; and
the rotating component is further configured to drive the display device to rotate at the refresh frequency,
wherein the vapor generating component comprises a gas cavity and a plurality of columns of air outlets arranged on an upper surface of the gas cavity; the air outlets in each column are arranged in a radial direction, and distances from respective air outlets in each column to a central axis of the display device are different from each other.

2. The three-dimensional image display system according to claim 1 , wherein the lenses comprise at least one of a convex lens, a convex lens array and a liquid crystal lens.

3. The three-dimensional image display system according to claim 2 , wherein the lenses are made of at least one of glass, quartz and polymer in the case that the lenses each is the convex lens or the convex lens array.

4. The three-dimensional image display system according to claim 2 , wherein each pixel unit corresponds to a plurality of convex lenses on the convex lens array in the case that the lenses each is the convex lens array.

5. The three-dimensional image display system according to claim 1 , wherein a focal length of each lens is:

f
=

(

A
-
B

)

2

+

d
2

×

cos
⁡

[

arctan
⁡

(

A
-
B

d

)

+
θ

]

;

wherein A is a height of an image point, B is a height of an optical center, θ is a tilt angle of an array substrate where a pixel is located, d is a distance from the image point to an image plane, and f is a focal length of a lens;
an edge of one side of each lens is aligned with a corresponding pixel edge, and a distance k from the optical center to the pixel is:

k
=

(

A
-
B

)

2

+

d
2

×

sin
⁡

[

arctan
⁡

(

A
-
B

d

)

+
θ

]

.

6. The three-dimensional image display system according to claim 1 , wherein a focal length of each lens is:
f=d /( m +1);
a distance between a pixel and a lens is:
l=d/m;

an edge of one side of each lens is aligned with an edge of the pixel, and a distance from an optical center to the pixel is:
k =( A−B )/ m;

wherein A is a height of an image point, B is a height of an optical center, d is a distance from an image point to an image plane, f is a focal length of the lens, and m is an image magnification ratio.

7. The three-dimensional image display system according to claim 1 , wherein a preset number of pixel units along a rotation direction are configured to receive a same image data, and optical parameters of the lenses of the pixel units are different.

8. The three-dimensional image display system according to claim 1 , wherein a plurality of nozzles are on the rotating disk,
the plurality of nozzles are on both sides of a set reference line, a distance between respective nozzle on each side of the set reference line and a center point of the rotating disk increases along a direction of rotation.

9. The three-dimensional image display system according to claim 1 , further comprising: a driving component;
wherein the driving component is configured to decompose an obtained original image, reconstruct three-dimensional image data based on the decomposed original image data, and provide the three-dimensional image data to the display device.

10. A method of driving a three-dimensional image display system, applied to the three-dimensional image display system according to claim 1 , comprising:
obtaining an original image;
decomposing the obtained original image to generate decomposed data;
reconstructing three-dimensional image data based on the decomposed data; and
providing the three-dimensional image data to the display device.

11. The three-dimensional image display system acc

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wang Kaifeng
• Sun tuo

Classifications

• H04N13/393

  the volume being generated by a moving, e.g. vibrating or rotating, surface · CPC title

• G09G3/003 Primary

  to produce spatial visual effects · CPC title

• G09G3/005 Primary

  forming an image using a quickly moving array of imaging elements, causing the human eye to perceive an image which has a larger resolution than the array, e.g. an image on a cylinder formed by a rotating line of LEDs parallel to the axis of rotation · CPC title

• G02B30/54

  the three-dimensional [3D] volume being generated by moving a two-dimensional [2D] surface, e.g. by vibrating or rotating the 2D surface · CPC title