Display apparatus and control method thereof

Patent metadata

Field	Value
Publication number	US-9619197-B2
Application number	US-201514644303-A
Country	US
Kind code	B2
Filing date	Mar 11, 2015
Priority date	Mar 11, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

Disclosed are a display apparatus and a control method thereof, in which displays are moved to display an image on a visible screen formed by a plurality of images. The display apparatus includes: a first display configured to display a first screen; a second display configured to display a second screen; and a controller configured to control an area of one visible screen formed by the first and second screens by changing at least one area of the first screen and the second screen, determine a first portion and a second portion of an image to be displayed so that the area of the visible screen corresponds to an area of the image, and controls the image to be respectively displayed on the first screen and the second screen.

First claim

What is claimed is:

1. A display apparatus comprising:
a first display configured to have a first screen;
a second display configured to have a second screen;
a driver configured to change an area of one visible screen formed by the first and second screens by moving at least one of the first display and the second display; and
a controller configured to:
analyze an aspect ratio of an image to be displayed;
determine a movement value for the moving of the at least one of the first display and the second display based on the analyzed aspect ratio of the image to be displayed;
control the driver to change the area of the visible screen corresponding to the image to be displayed by said moving of the at least one of the first display and the second display by the determined movement value,
determine a first portion and a second portion of the image to be displayed according to the change of the area of the visible screen, and
control the first portion and the second portion to be respectively displayed on the first screen and the second screen.

2. The display apparatus according to claim 1 , wherein the area is defined by the aspect ratio.

3. The display apparatus according to claim 1 ,
wherein the controller controls the driver to change at least one area of the first screen and the second screen so that the area of the visible screen corresponds to an area of the image.

4. The display apparatus according to claim 1 , wherein the area of the visible screen comprises the area of the first screen, and the area of the second screen not overlapped with the area of the first screen.

5. The display apparatus according to claim 1 , further comprising a power supply configured to supply electric power to the display,
wherein the controller controls the area of the second screen of the second display, the area of the second screen of the second display not overlapped with the area of the first screen, to be not supplied with electric power.

6. The display apparatus according to claim 1 , wherein the controller determines the movement value by determining a changing direction and a changing distance of at least one area of the first screen and the second screen by analyzing the aspect ratio of the image, and changes said at least one area of the first screen and the second screen based on the determined changing direction and the determining changing distance.

7. The display apparatus according to claim 6 , wherein the controller changes the area of the second screen to be matched with an area between a horizontal and a vertical width of the area of the first screen.

8. The display apparatus according to claim 1 , wherein the controller matches a horizontal or vertical width of the image with one of a horizontal or a vertical width of the area of the first screen, and controls the image to be displayed on the area of the visible screen while maintaining the aspect ratio of the image if the area of the second screen is changed.

9. The display apparatus according to claim 1 , wherein the controller changes the area of the second screen based on a horizontal or a vertical width determined so that the visible screen has a maximum area.

10. The display apparatus according to claim 1 , wherein the controller changes the area of the second screen based on at least one of a horizontal and a vertical width of a preset area of the visible screen.

11. A method of controlling a display apparatus, the method comprising:
analyzing an aspect ratio of an image to be displayed;
determining a movement value for the moving of the a t least one of the first display and the second display based on the analyzed aspect of the image to be displayed;
changing at least one area of a visible screen formed by a first screen of a first display and a second screen of a second display by moving the at least one of the first display and the second display by the determined movement value;
determining a first portion and a second portion of an image to be displayed according to the change of the area of the visible screen; and
controlling the first portion and the second portion to be respectively displayed on the first screen and the second screen.

12. The method according to claim 11 , wherein the area is defined by the aspect ratio.

13. The method according to claim 11 , wherein the changing the area comprises changing at least one area of the first screen and the second screen so that the area of the visible screen corresponds to an area of the image.

14. The method according to claim 11 , wherein the area of the visible screen comprises the area of the first screen, and the area of the second screen which is not overlapped with the area of the first screen.

15. The method according to claim 11 , wherein the controlling the first portion and the second portion to be respectively displayed on the first screen and the second screen comprises controlling the area of the second screen of the second display, the area of the second screen of the second display not overlapped with the area of the first screen, to have no electric power supplied thereto.

16. The method according to claim 11 , wherein the determining the movement value comprises determining a changing direction and a changing distance of at least one area of the first screen and the second screen by analyzing the aspect ratio of the image, and changing said at least one area of the first screen and the second screen based on the determined changing direction and the determined changing distance.

17. The method according to claim 16 , wherein the changing the area comprises changing the area of the second screen so as to be matched with an area between a horizontal and a vertical width of the area of the first screen.

18. The method according to claim 11 , wherein the controlling the first portion and the second portion to be respectively displayed on the first screen and the second screen comprises:
matching a horizontal or a vertical width of the image with one of the horizontal, or the vertical width of the area of the first screen; and
controlling the image to be displayed on the area of the visible screen while maintaining the aspect ratio of the image if the area of the second screen is changed.

19. The method according to claim 11 , wherein the changing the area comprises changing the area of the second screen based on a horizontal or a vertical width determined so that the visible screen has a maximum area.

20. The method according to claim 11 , wherein the changing the area comprises changing the area of the second screen based on at least one of a horizontal and a vertical width of a preset area of the visible screen.

21. The display apparatus according to claim 1 , wherein the second display is a flexible display, and is provided with a plurality of rails so that a resulting visible screen has a stable shape, wherein the second display has a portion not visible and rolled up like a scroll when not used.

22. The display apparatus according to claim 1 , wherein the first and the second display have a predetermined curvature, the first and second display panels overlap each other and the second display panel may be slid along the curvature of the first display panel in order to extend a viewing region of the display apparatus.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Bang Min-Hyok
• Park Sang-Bae
• Lee Keum-Ok
• Lee Dong-Jin
• Lee Jung-Kun
• Jeong Jae-Hoon
• Cho Kyung-Sun
• Hong Seong-Seol

Classifications

• G06F3/1423

  controlling a plurality of local displays, e.g. CRT and flat panel display · CPC title

• G06F3/1446

  display composed of modules, e.g. video walls · CPC title

• G09G2340/04

  Changes in size, position or resolution of an image · CPC title

• G09G2340/0442

  Handling or displaying different aspect ratios, or changing the aspect ratio · CPC title

• G06F3/1431 Primary

  using a single graphics controller · CPC title