# US 2021/0280145 A1 · Display device and display method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2021/0280145 A1
- Document ID: US20210280145A1
- Status: Published application
- Kind: A1
- Application number: 17/260,552
- Filed: 2019-06-21
- Published: 2021-09-09
- Earliest claimed: 2018-07-18
- Assignees: Nippon Telegraph and Telephone Corporation
- Applicants: Nippon Telegraph and Telephone Corporation
- Inventors: Munekazu DATE; Megumi ISOGAI; Hideaki KIMATA
- Web page: https://patentgrep.com/patent/US20210280145A1

## CPC

- G09G 3/003: {to produce spatial visual effects}
- G09G 3/3607: {for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127)}
- G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00)
- H04N 13/31: using parallax barriers
- H04N 13/312: the parallax barriers being placed behind the display panel, e.g. between backlight and spatial light modulator [SLM]
- H04N 13/324: Colour aspects
- G09G 2300/0465: Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
- H04N 13/317: using slanted parallax optics
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A display device and a display method which can reproduce kinematic parallax and express a high sense of realism without using image display means are provided. The display device includes an image display unit having a stripe structure having subpixels of a plurality of colors disposed so that subpixels of the same color are arranged in a first direction and enabling an observer to observe, through an aperture, an image formed by pixels, each pixel being constituted by the subpixels of a plurality of colors. The aperture has a shape in which areas of the subpixels of the plurality of colors which can be seen through the aperture are uniform, and in which a numerical aperture decreases along a second direction orthogonal to the first direction. A plurality of the apertures are provided so as not to overlap with each other.

## Claims

### Claim 1

A display device comprising: image display means having a stripe structure including subpixels of a plurality of colors disposed so that subpixels of the same color are arranged in a first direction, the image display means enabling an observer to observe, through an aperture, an image formed by pixels, each pixel being constituted by the subpixels of a plurality of colors, wherein the aperture has a shape in which areas of the subpixels of the plurality of colors which can be seen through the aperture are uniform, and in which a numerical aperture decreases along a second direction orthogonal to the first direction, and a plurality of the apertures are provided so as not to overlap with each other.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein the aperture has the same area as a block constituted by a pixels (where a is an integer greater than or equal to 1) in the first direction and b pixels (where b is an integer greater than or equal to 1) in the second direction, and when a number of the colors of the subpixels is represented by C, a total width of the aperture in the first direction, at a position corresponding to an Nth subpixel (where N=1, 2, and so on up to C) from one end of the aperture in the second direction and observed through the aperture, is a value obtained by dividing a product of a width of the block in the first direction and N by C.

### Claim 3 (depends on 2)

The display device according to claim 2, wherein a total width of the aperture in the second direction at a given position in the first direction matches or substantially matches the width of the block in the second direction.

### Claim 4 (depends on 1)

The display device according to claim 1, wherein a center of gravity of the aperture matches or substantially matches a center of a quadrangle circumscribing the aperture.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein the aperture has a shape that has been smoothed so as to reduce a number of corners.

### Claim 6 (depends on 1)

The display device according to claim 1, further comprising: a control unit that displays a pixel of an image from a prescribed viewpoint on a pixel observed when viewing through the aperture from the viewpoint.

### Claim 7 (depends on 6)

The display device according to claim 6, wherein the control unit displays an image in which parallax of an image displayed in an adjacent pixel is less than or equal to ten minutes.

### Claim 8

A display method for a display device including image display means, the image display means having a stripe structure including subpixels of a plurality of colors disposed so that subpixels of the same color are arranged in a first direction, and the image display means enabling an observer to observe, through an aperture, an image formed by pixels, each pixel being constituted by the subpixels of a plurality of colors, wherein the aperture has a shape in which areas of the subpixels of the plurality of colors which can be seen through the aperture are uniform, and in which a numerical aperture decreases along a second direction orthogonal to the first direction; a plurality of the apertures are provided so as not to overlap with each other; and the method comprising: displaying a pixel of an image from a prescribed viewpoint on a pixel observed when viewing through the aperture from the viewpoint.