Display device and screen sharing operation method thereof

Patent metadata

Field	Value
Publication number	US-12423048-B2
Application number	US-202118692263-A
Country	US
Kind code	B2
Filing date	Sep 28, 2021
Priority date	Sep 15, 2021
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A display device according to the present disclosure may include a display part; a wireless communication part configured to perform wireless communication with a first portable device connected to a first terminal displaying a first image or a second portable device connected to a second terminal displaying a second image; and a controller configured to: when a screen sharing request is received from the first portable device, determine whether a management mode for managing screen sharing of the second portable device connected to the second terminal is activated, when the management mode of the second portable device is activated, determine whether screen sharing permission has been received from the second portable device, when the screen sharing permission is received, receive the first image data corresponding to the first image from the portable device, and based on the received first image data, display first mirroring image on the display part.

First claim

The invention claimed is:

1. A display device comprising:
a display;
a transceiver configured to perform wireless communication with a first portable device connected to a first terminal displaying a first image or a second portable device connected to a second terminal displaying a second image; and
a controller configured to:
based on a screen sharing request is received from the first portable device, determine whether a screen sharing admin mode of the second portable device for managing screen sharing is activated, and
based on the screen sharing admin mode of the second portable device being activated-determine whether permission has been received from the second portable device for screen sharing;
and;
based on the permission having been received, receive first image data corresponding to the first image from the first portable device; and display a first mirroring image based on the first image data on the display; and
based on the screen sharing admin mode of the second portable device not being activated:
determine whether the second terminal is sharing the second image being displayed through the second portable device; and
based on a determination that the second image is not being shared, receive the first image data from the first portable device and display the first mirroring image on the display.

2. The display device of claim 1 ,
wherein the controller is configured to:
based on a determination that the second image is being shared through the second portable device, display a notification indicating that the second image is being shared on the display.

3. The display device of claim 1 , further comprising:
a memory configured to store a screen control program which decodes image data received from the portable devices and displays a mirroring image based on the decoded data.

4. The display device of claim 1 ,
wherein the controller is configured to:
based on the first portable device and the second portable device operating in a multi-screen sharing mode, concurrently display the first mirroring image and a second mirroring image on divided parts of the display based on the second image being displayed by the second terminal.

5. The display device of claim 1 ,
wherein the controller is configured to identify a device of the first portable device and the second portable device which first receives a request for the screen sharing admin mode as a management device.

6. The display device of claim 1 ,
wherein the transceiver includes a WiFi module.

7. A method for operating a display device comprising:
receiving a screen sharing request from a first portable device connected to a first terminal displaying a first image;
determining whether a screen sharing admin mode of a second portable device for managing screen sharing of the second portable device connected to a second terminal is activated;
based on the screen sharing admin mode of the second portable device being activated:
determining whether screen sharing permission has been received from the second portable device for screen sharing; and
based on the permission having been received, receiving first image data corresponding to the first image from the first portable device and displaying a first mirroring image based the first image data on a display of the display device; and
based on the screen sharing admin mode of the second portable device not being activated:
determining whether the second terminal is sharing a second image being displayed through the second portable device; and
based on a determination that the second image is not being shared, receiving the first image data from the first portable device and displaying the first mirroring image on the display.

8. The method for operating a display device of claim 7 , further comprising:
based on a determination that the second image is being shared through the second portable device, displaying a notification indicating that the second image is being shared.

9. The method for operating a display device of claim 7 , further comprising:
decoding image data received from the portable device and storing a screen control program to display a mirroring image based on the decoded data.

10. The method for operating a display device of claim 7 , further comprising:
based on the first portable device and the second portable device operating in a multi-screen sharing mode, concurrently displaying the first mirroring image and a second mirroring image on divided parts of the display based on the second image being displayed by the second terminal containing.

11. The method for operating a display device of claim 7 , further comprising:
identifying a device of the first portable device and the second portable device which first receives a request for the screen sharing admin mode as a management device.

Assignees

• Lg Electronics Inc

Inventors

• Seok Sangin
• Shin Sungeun
• Koo Yoonhee
• Jang Gijung
• Lee Seunghun
• Lee Kangil

Classifications

• G09G2370/20

  Details of the management of multiple sources of image data · CPC title

• G09G2358/00

  Arrangements for display data security · CPC title

• G06F3/1423

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

• G06F3/1454 Primary

  involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title