Digital signage and operating method thereof

Patent metadata

Field	Value
Publication number	US-11062683-B2
Application number	US-201716614021-A
Country	US
Kind code	B2
Filing date	Dec 7, 2017
Priority date	Jun 8, 2017
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A digital signage including a display panel configured to display content; a controller configured to: display first content in a first area of the display panel, obtain display panel control data for preventing an afterimage, based on received afterimage-related data, and move the display panel a predetermined amount and display the first content in a second area of the display panel based on the display panel control data.

First claim

The invention claimed is:

1. A display device comprising:
a display panel configured to display content;
a controller configured to:
display first content in a first area of the display panel,
obtain display panel control data, based on received afterimage-related data, and
move the display panel based on the display panel control data, and
display the first content in a second area of the display panel.

2. The display device of claim 1 , wherein the second area is in a direction opposite to a moving direction of the display panel.

3. The display device of claim 1 , wherein the display panel control data comprises one or more of a moving direction, a moving speed, and a moving period of the display panel.

4. The display device of claim 1 , wherein the afterimage-related data comprises at least one of a type of the display panel, a temperature of the display panel, a cumulative playback time of the first content displayed on the display panel, a type of the first content, an ambient brightness of the display panel, or whether a person is sensed or not.

5. The display device of claim 4 , wherein the controller is further configured to:
when the type of the display panel is a rollable display, control the display panel to be in a first state including the first area or a second state including the first area and the second area, and
wherein first content displayed on the first area in the first state differs from second content displayed on the first area in the second state.

6. The display device of claim 4 , wherein the controller is further configured to:
when the temperature of the display panel is higher than a predetermined reference temperature, move the display panel at a first speed, and
when the temperature of the display panel is lower than the predetermined reference temperature, move the display panel at a second speed, and
wherein the first speed is faster than the second speed.

7. The display device of claim 4 , wherein the controller is further configured to:
when the cumulative playback time of the first content is longer than a predetermined reference time, move the display panel at a first speed, and
when the cumulative playback time of the first content is shorter than the predetermined reference time, move the display panel at a second speed, and
wherein the first speed is faster than the second speed.

8. The display device of claim 4 , wherein the controller is further configured to:
when the type of the content is a static image, move the display panel at a first speed, and
when the type of the content is a dynamic image, move the display panel at a second speed, and
wherein the first speed is faster than the second speed.

9. The display device of claim 4 , wherein the controller is further configured to:
when the ambient brightness of the display panel is lower than a reference brightness, move the display panel at a first speed, and
when the ambient brightness of the display panel is higher than the reference brightness, move the display panel at a second speed, and
wherein the first speed is faster than the second speed.

10. The display device of claim 4 , wherein the controller is further configured to:
when a person is not sensed in a predetermined area from the digital signage, set the display panel to the first state, and
when a person is sensed in the predetermined area from the digital signage, set the display panel to the second state, and
wherein the first content displayed on the first area in the first state differs from second content displayed on the first area in the second state.

11. The display device of claim 4 , wherein the controller is further configured to:
when a person is not sensed in a predetermined area from the digital signage, move the display panel at a first speed, and
when a person is sensed in the predetermined area from the digital signage, move the display panel at a second speed, and
wherein the first speed is slower than the second speed.

12. The display device of claim 1 , wherein the controller is further configured to:
obtain pixel state data for each pixel of the display panel, and
move the display panel, based on the pixel state data.

13. The display device of claim 12 , wherein the controller is further configured to:
change an output area of the first content, based on the state data of the pixel.

14. The display device of claim 12 , wherein the pixel state data comprises a use duration of a corresponding pixel.

15. The display device of claim 14 , wherein the controller is further configured to:
move the display panel so that an area corresponding to a pixel where the use duration of the pixel is longest is disposed in an area on which the first content is not displayed.

16. The display device of claim 12 , wherein the controller is further configured to:
display the pixel state data on the display panel.

17. The display device of claim 12 , wherein the controller is further configured to:
recommend a content output format, based on the pixel state data.

18. The display device of claim 17 , wherein the content output format comprises a plurality of areas divided based on the pixel state data and recommendation content for each of the plurality of areas.

19. The display device of claim 18 , wherein the corrimendati on content comprises a text, a static image, and a dynamic image.

20. The display device of claim 17 , wherein the controller is further configured to:
in response to a content change command for changing the displayed content to other content, display the content output format.

Assignees

• Lg Electronics Inc

Inventors

• Park Chala
• Kim Youngran
• Yun Jaesun
• Lee Seunghun
• Hong Soungjoo

Classifications

• G09G2340/16

  Determination of a pixel data signal depending on the signal applied in the previous frame · CPC title

• G09G2320/0261

  in the context of movement of objects on the screen or movement of the observer relative to the screen · CPC title

• G09G2320/0257

  Reduction of after-image effects · CPC title

• G09F11/16 Primary

  Electric control therefor · CPC title

• G09F9/3023

  Segmented electronic displays · CPC title