Curved multi-view image display apparatus and control method thereof

Patent metadata

Field	Value
Publication number	US-10136125-B2
Application number	US-201514704293-A
Country	US
Kind code	B2
Filing date	May 5, 2015
Priority date	Jul 18, 2014
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

A curved multi-view image display apparatus is provided. The curved multi-view image display apparatus includes: a curved display panel which includes a plurality of sub-pixels and has a curvature; a viewing zone divider provided on in front of the display panel and configured to divide a viewing zone and provide a plurality of optical views; a renderer configured to render a multi-view image to be output to the display panel; and a controller configured to determine a rendering pitch for each of the plurality of optical views based on the curvature, and control the renderer so that at least some of the plurality of sub-pixels to output a pixel value corresponding to a plurality of multi-view images based on the determined rendering pitch.

First claim

What is claimed is:

1. An image display apparatus comprising:
a curved display panel that comprises a plurality of sub-pixels;
a viewing zone divider provided in front of the curved display panel and configured to provide a plurality of optical views; and
a controller comprising a processor configured to execute processor-executable instructions to:
render a multi-view image based on a plurality of images of different views according to a rendering pitch, and
control the curved display panel to display the multi-view image,

wherein at least one of the plurality of sub-pixels comprises a plurality of pixel values corresponding to the plurality of images of different views,
wherein the rendering pitch is determined based on a curvature of the curved display panel, and
wherein the rendering pitch is a predetermined number of sub pixels included in a unit configured to render one of the plurality of images of different views, and is proportional to a radius of the curvature of the curved display panel and an angle formed between an optical view at a center of the viewing zone divider and each of the plurality of optical views, and inversely proportional to a number of the plurality of optical views.

2. The image display apparatus of claim 1 , wherein the viewing zone divider comprises a lenticular lens, and
wherein the controller is configured to determine a rendering pitch corresponding to a first optical view of the multi-view image based on an angle that is formed by a center of the lenticular lens and the first optical view, and determine a rendering pitch corresponding to a second optical view of the multi-view image based on an angle that is formed by the center of the lenticular lens and the second optical view.

3. The image display apparatus of claim 1 , wherein the viewing zone divider comprises a parallax barrier, and
wherein the controller is configured to determine a rendering pitch corresponding to a first optical view of the multi-view image based on an angle that is formed by a center of an adjacent barrier slit of the parallax barrier and the first optical view, and determine a rendering pitch corresponding to a second optical view of the multi-view image based on an angle that is formed by the center of the adjacent barrier slit of the parallax barrier and the second optical view.

4. The image display apparatus of claim 1 , wherein the controller is configured to determine a rendering pitch by using distance information between the viewing zone divider and a first optical view of the multi-view image based on the curvature of the curved display panel, and determine a rendering pitch using a distance between the viewing zone divider and a second optical view of the multi-view image.

5. The image display apparatus of claim 1 , wherein the controller is configured to control at least some of the plurality of sub-pixels to output a third pixel value that is calculated from a first pixel value of a first multi-view image and a second pixel value of a second multi-view image.

6. The image display apparatus of claim 5 , wherein the controller is configured to calculate the third pixel value based on a mixing ratio of the first pixel value and the second pixel value, wherein the mixing ratio is determined based on the rendering pitch.

7. The image display apparatus of claim 1 , wherein the viewing zone divider comprises a lenticular lens, and
wherein a pitch of the lenticular lens is determined by the following equation:

P
⁢

⁢
2

=

θ
×
L
⁢

⁢
2
×

2
⁢
π

360

where

θ
=

P
⁢

⁢
1
×
VN
×

360

2
⁢

π
⁡

(

L
⁢

⁢
1

+

L
⁢

⁢
2

)

,

 P 2 is the pitch of the lenticular lens, θ is an angle formed by the lenticular lens located at a center from an optical view located at the center and an adjacent lenticular lens, L 1 is a distance between the curved display panel and the viewing zone divider, L 2 is an optimum viewing distance of the multi-view image, P 1 is the rendering pitch, and VN is an odd number of the plurality of optical views of the multi-view image.

8. The image display apparatus of claim 1 , wherein the viewing zone divider comprises a lenticular lens, and
wherein a changed rendering pitch which for each lenticular lens is determined by the following equation:

θ
=

P
⁢

⁢
1
×
VN
×
L
⁢

⁢
N
×

360

2
⁢

π
⁡

(

L
⁢

⁢
1

+

L
⁢

⁢
2

)

Assignees

• Samsung Electronics Co Ltd

Inventors

• Yoon Jung-Hoon
• Kang Ki-Hyung
• Jeon Keun-Bae
• Hwang Seon-Deok

Classifications

• G02B30/27

  involving lenticular arrays · CPC title

• G09G3/003

  to produce spatial visual effects · CPC title

• G09G2354/00

  Aspects of interface with display user · CPC title

• H04N13/305

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

• H04N13/317

  using slanted parallax optics · CPC title