Light field display method and system, storage medium and display panel

Patent metadata

Field	Value
Publication number	US-11825064-B2
Application number	US-202117627497-A
Country	US
Kind code	B2
Filing date	Mar 31, 2021
Priority date	Mar 31, 2020
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A light field display method includes: generating a pixel light field information database (S1); processing, according to different depth positions of an original three-dimensional image, slice images corresponding to the different depth positions and pixel light field information at the different depth positions, to obtain recorded images of the slice images of the original three-dimensional image at the different depth positions (S2); and superimposing the recorded images of the slice images of the original three-dimensional image at the different depth positions, to obtain a microcell array image of the original three-dimensional image (S3). A light field display system has a database generator (101), a recorded image generator (102), and a superimposer (103) which implement the described functions. A non-transitory computer readable storage medium stores thereon a computer program for implementing the method. A display panel includes the non-transitory computer readable storage medium.

First claim

What is claimed is:

1. A light field display method, comprising:
generating a pixel light field information database;
processing, according to different depth positions of an original three-dimensional image, slice images corresponding to the different depth positions and pixel light field information at the different depth positions, to obtain recorded images of the slice images of the original three-dimensional image at the different depth positions; and
superimposing the recorded images of the slice images of the original three-dimensional image at the different depth positions, to obtain a microcell array image of the original three-dimensional image;
wherein the superimposing the recorded images of the slice images of the original three-dimensional image at the different depth positions, to obtain the microcell array image of the original three-dimensional image comprises: obtaining the recorded images of the slice images at the different depth positions; and superimposing the recorded images of the slice images at the different depth positions to obtain the microcell array image of the original three-dimensional image; and
wherein the superimposing the recorded images of the slice images at the different depth positions to obtain the microcell array image of the original three-dimensional image comprises:
obtaining a recorded image n, which is a microcell array image obtained after a first computation, for n slice images of the original three-dimensional image at the different depth positions;
obtaining a recorded image (n-1), which is then superimposed with the recorded image n to obtain a microcell array image after a second computation;
obtaining a recorded image (n-2), which is then superimposed with the recorded image (n-1) to obtain a microcell array image after a third computation; and
repeating the process until obtaining a microcell array image after an n-th computation as the microcell array image of the original three-dimensional image;
where n represents the number of slice images of the original three-dimensional image at different depth positions, and n is an integer greater than 1, and for the n slice images of the original three-dimensional image at the different depth positions, a slice image (m-1) at a depth position and a slice image m at another depth position are slice images at any two adjacent depth positions, and the slice image (m-1) at the depth position is closer to a pupil position than the slice image m at the another depth position, where 2≤m≤n.

2. The light field display method according to claim 1 , wherein the generating the pixel light field information database comprises:
determining a pupil position, an angle of field of view, and a viewing distance according to information on a display screen and information on a micro lens array; wherein the micro lens array comprises a plurality of micro lenses arranged in an array, and the display screen comprises a plurality of sub-pixels arranged in an array;
determining an active imaging area and an inactive imaging area of the display screen according to the pupil position, the angle of field of view and the viewing distance;
enabling each micro lens in the active imaging area to correspond to multiple sub-pixels on the display screen and process simulated light rays emitted from the multiple sub-pixels, to form a microcell light field; and
combining all the microcell light fields in the active imaging area to obtain the pixel light field information database.

3. The light field display method according to claim 1 , wherein the processing, according to different depth positions of the original three-dimensional image, slice images corresponding to the different depth positions and pixel light field information at the different depth positions, to obtain recorded images of the slice images of the original three-dimensional image at the different depth positions comprises:
obtaining a plurality of depth positions of the original three-dimensional image;
projecting pixel light field information to the plurality of depth positions of the original three-dimensional image; and
simulating to light up sub-pixels of a display screen according to information on object points on the slice images at the different depth positions of the original three-dimensional image, to generate recorded images corresponding to the slice images at the respective depth positions;
wherein the information on object points comprises gray scale information of sub-pixels of which the pixel gray scale is not 0 on the slice images at the different depth positions.

4. The light field display method according to claim 2 , wherein the enabling each micro lens in the active imaging area to correspond to the multiple sub-pixels on the display screen and process simulated light rays emitted from the multiple sub-pixels, to form a microcell light field comprises:
obtaining a correspondence relationship between each micro lens in the active imaging area and sub-pixels of the display screen; and
combining light field information of the light rays emitted from the multiple sub-pixels on the display screen corresponding to the micro lens, to form the microcell light field of the micro lens.

5. A light field display method, comprising:
generating a pixel light field information database;
processing, according to different depth positions of an original three-dimensional image, slice images corresponding to the different depth positions and pixel light field information at the different depth positions, to obtain recorded images of the slice images of the original three-dimensional image at the different depth positions; and
superimposing the recorded images of the slice images of the original three-dimensional image at the different depth positions, to obtain a microcell array image of the original three-dimensional image;
wherein the generating the pixel light field information database comprises: determining a pupil position, an angle of field of view, and a viewing distance according to information on a display screen and information on a micro lens array; wherein the micro lens array comprises a plurality of micro lenses arranged in an array, and the display screen comprises a plurality of sub-pixels arranged in an array; determining an active imaging area and an inactive imaging area of the display screen according to the pupil position, the angle of field of view and the viewing distance; enabling each micro lens in the active imaging area to correspond to multiple sub-pixels on the display screen and process simulated light rays emitted from the multiple sub-pixels, to form a microcell light field; and combining all the microcell light fields in the active imaging area to obtain the pixel light field information database;
wherein the enabling each micro lens in the active imaging area to correspond to the multiple sub-pixels on the display screen and process simulated light rays emitted from the multiple sub-pixels, to form a microcell light field comprises: obtaining a correspondence relationship between each micro lens in the active imaging area and sub-pixels of the display screen; and combining light field information of the light rays emitted from the multiple sub-pixels on the display screen corresponding to the micro lens, to form the microcell light field of the micro lens; and
wherein the combining light field information of the light rays emitted from the multiple sub-pixels on the display screen corresponding to the micro lens, to form the microcell light field of the micro lens comprises:
generating a space rectangular coordinate system comprising a plane rectangular coordinate system composed of an X axis and a Y axis generated in a plane where the micro lens array is located, and a Z axis vertical to a plane where the plane rectangular coor

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhang Qingxun
• Gao Jian
• Ma Sen
• Zhu Jinye

Classifications

• H04N13/122 Primary

  Improving the three-dimensional [3D] impression of stereoscopic images by modifying image signal contents, e.g. by filtering or adding monoscopic depth cues (H04N13/128 takes precedence) · CPC title

• H04N13/128

  Adjusting depth or disparity · CPC title

• H04N13/305

  using lenticular lenses, e.g. arrangements of cylindrical lenses · CPC title

• H04N13/383

  for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes · CPC title

• G06T7/557 Primary

  from light fields, e.g. from plenoptic cameras · CPC title