# US 12,217,357 B2 · Display device for outputting a 3D image and method of controlling the display device

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- Number: US 12,217,357 B2
- Document ID: US12217357B2
- Status: Granted
- Kind: B2
- Application number: 18/613,297
- Filed: 2024-03-22
- Published: 2024-07-11
- Granted: 2025-02-04
- Earliest claimed: 2021-01-18
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.; Maxst Co., Ltd.
- Inventors: Rang Kyun Mok; Ji Young Choi; Gi Seok Kwon; Jae Joong Kwon; Beom Shik Kim; Jae Wan Park
- Web page: https://patentgrep.com/patent/US12217357B2

## CPC

- G06T 15/20: Perspective computation
- H04N 13/305: using lenticular lenses, e.g. arrangements of cylindrical lenses
- G06T 15/005: {General purpose rendering architectures}
- G06T 15/04: Texture mapping
- G06T 19/006: {Mixed reality (object pose determination, tracking or camera calibration for mixed reality G06T7/00)}
- G06T 19/20: Editing of three-dimensional [3D] images, e.g. changing shapes or colours, aligning objects or positioning parts
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A method of controlling a display device includes rendering a plurality of viewpoint images, generating a plurality of sub-images based on the plurality of viewpoint images and a plurality of mapping pattern images corresponding to the plurality of viewpoint images, generating a single light-field image based on the plurality of sub-images, and outputting the single light-field image.

## Claims

### Claim 1

A display device comprising:
an image processing circuit configured to generate a light-field image;
a storage circuit configured to store a plurality of mapping pattern images each comprising a plurality of color regions;
a display panel configured to display the light-field image;
an optical member disposed on the display panel and comprising a plurality of lenses configured to transmit the light-field image toward a plurality of viewing regions; and
a control circuit configured to control at least one of the image processing circuit, the storage circuit, and the display panel,
wherein the control circuit controls the image processing circuit so that the light-field image is generated based on a plurality of viewpoint images rendered from 3D modeling data and the plurality of mapping pattern images.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the image processing circuit renders the plurality of viewpoint images to a plurality of textures, based on the 3D modeling data previously stored in the storage circuit.

### Claim 3 (depends on 1)

The display device of claim 1, wherein the image processing circuit calculates color values of a plurality of sub-images based on color values of particular pixel positions of the plurality of viewpoint images and color values of particular color regions of the plurality of mapping pattern images corresponding to the particular pixel positions.

### Claim 4 (depends on 3)

The display device of claim 3, wherein the image processing circuit selectively extracts color values of the plurality of viewpoint images by using the color values of the particular color regions of the plurality of mapping pattern images.

### Claim 5 (depends on 1)

The display device of claim 1, wherein the plurality of color regions comprises a first color region of a first color, a second color region of a second color, a third color region of a third color, and a fourth color region of a fourth color, and
wherein the first color, the second color, the third color, and the fourth color are different from one another.

### Claim 6 (depends on 5)

The display device of claim 5, wherein the fourth color is a mixture of at least two of the first color, the second color, and the third color.

### Claim 7 (depends on 1)

The display device of claim 1, further comprising a sensor circuit configured to measure a distance between the display device and an outside object,
wherein the image processing circuit changes at least one of contents, a position, a size, or a shape of the light-field image in real time based on the distance sensed by the sensor circuit.

### Claim 8 (depends on 1)

The display device of claim 1, further comprising a camera circuit configured to capture an image of an outside object,
wherein the control circuit controls the image processing circuit so that the light-field image is generated if a marker image is included in the image captured by the camera circuit.

### Claim 9 (depends on 8)

The display device of claim 8, wherein the control circuit controls the image processing circuit so that the light-field image is displayed as it is superimposed on a real-time image captured by the camera circuit by synthesizing the light-field image and the real-time image in real time.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the image processing circuit processes the plurality of viewpoint images and the plurality of mapping pattern images in parallel.