Display apparatus and control method thereof

Patent metadata

Field	Value
Publication number	US-2017192486-A1
Application number	US-201615383092-A
Country	US
Kind code	A1
Filing date	Dec 19, 2016
Priority date	Jan 5, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

Disclosed is a display apparatus including: a wireless power receiver configured to wirelessly receive power from an external power source to supply power to the display apparatus; a display configured to display an image based on a received image signal; communication circuitry configured to communicate with the external module; information acquiring circuitry configured to acquire information about a distance between the display apparatus and a user; and a controller configured to determine consumption power of the display apparatus, to control the communication circuitry to provide information about the determined consumption power to the external module, and to reduce the consumption power of the display apparatus if it is determined based on the acquired information that the user is within a predetermined critical distance of the display apparatus. Thus electromagnetic waves harmful to a human body is controlled to reduce and/or eliminate an affect a user.

First claim

What is claimed is:

1 . A display apparatus comprising:
a wireless power receiver configured to wirelessly receive power from an external power source to supply power to the display apparatus; a display configured to display an image based on a received image signal; communication circuitry configured to communicate with the external power source; information acquiring circuitry configured to acquire information about a distance between the display apparatus and a user; and a controller configured to determine consumption power of the display apparatus, to control the communication circuitry to provide information about the determined consumption power to the external power source, and to reduce the consumption power of the display apparatus if it is determined, based on the acquired information, that the user is within a predetermined critical distance of the display apparatus.

2 . The display apparatus according to claim 1 , wherein the controller is configured to detect data based on change in a level of power transmitted from the external power source, and to control the display to display an image based on the detected data.

3 . The display apparatus according to claim 1 , wherein the controller is configured to control at least one of: brightness of the display, a sound output from a loudspeaker, and quality of an image displayed on the display, to reduce the consumption power of the display apparatus.

4 . The display apparatus according to claim 1 , further comprising a battery provided in the display apparatus configured to selectively supply power to the display apparatus,
wherein the controller is configured to charge the battery with power supplied from the wireless power receiver, to control the communication circuitry to request that the external power source cut off the power transmission if it is determined, based on the acquired information, that the user is within the predetermined critical distance, and to control the battery to supply power if the wireless power receiver receives no power from the external module.

5 . The display apparatus according to claim 1 , wherein the controller is configured to reduce the consumption power if a preset first critical time has elapsed after it is determined based on the acquired information that a body part of the user is within the predetermined critical distance.

6 . The display apparatus according to claim 1 , wherein the controller is configured to determine whether the user is moving within the predetermined critical distance based on the acquired information, and to reduce the consumption power if it is determined that the user is moving and the movement lasts for more than a second critical time.

7 . The display apparatus according to claim 6 , wherein the controller is configured to determine whether the user is moving away from the display apparatus in a first direction or whether the user is not moving away from the display apparatus in a second direction, and if it is determined that the user is moving, to reduce the consumption power if the user is moving in the second direction and the movement lasts for more than a third critical time.

8 . The display apparatus according to claim 1 , wherein the controller is configured to reduce the consumption power based on distances between the user and the display apparatus based on the acquired information.

9 . The display apparatus according to claim 1 , wherein the controller is configured to control the display to display a distance between the user and the display apparatus based on the acquired information.

10 . The display apparatus according to claim 1 , wherein the controller is configured to control the display to display a user interface (UI) comprising at least one menu item, to store setup information about the consumption power based on inputs received using the menu item of the user interface, and to reduce the consumption power based on the stored setup information.

11 . A method of controlling a display apparatus, the method comprising:
wirelessly receiving power from an external power source; displaying an image based on a received image signal; communicating with the external module; acquiring information about a distance between the display apparatus and a user; determining consumption power of the display apparatus and providing information about the determined consumption power to the external power source; and reducing the consumption power of the display apparatus if it is determined, based on the acquired information, that the user is within a predetermined critical distance of the display apparatus.

12 . The method according to claim 11 , wherein the wirelessly receiving the power comprises: detecting data based on change in a level of power transmitted from the external power source, and displaying an image based on the detected data.

13 . The method according to claim 11 , wherein the reducing the consumption power of the display apparatus comprises: controlling at least one of: brightness of a display, a sound output from a loudspeaker, and quality of an image displayed on the display.

14 . The method according to claim 20 , further comprising:
charging a battery with power received from the external module; and making a request to the external power source to cut off the power transmission if it is determined based on the acquired information that the user is within the predetermined critical distance, and controlling the battery to selectively supply power if no power is received from the external power source.

15 . The method according to claim 11 , wherein the reducing the consumption power of the display apparatus comprises: reducing the consumption power if a preset first critical time has elapsed after it is determined based on the acquired information that a body part of the user is within the predetermined critical distance.

16 . The method according to claim 11 , wherein the reducing the consumption power of the display apparatus comprises:
determining whether the user is moving; and reducing the consumption power if it is determined that the user is moving and the movement lasts for more than a second critical time.

17 . The method according to claim 16 , wherein the reducing the consumption power of the display apparatus comprises:
determining whether the user is moving away from the display apparatus in a first direction or whether the user is not moving away from the display apparatus in a second direction if it is determined that the user is moving; and reducing the consumption power if the user is moving in the second direction and the movement lasts for more than a third critical time.

18 . The method according to claim 11 , wherein the reducing the consumption power of the display apparatus comprises: reducing the consumption power based on distances between the user and the display apparatus based on the acquired information.

19 . The method according to claim 11 , further comprising: displaying a distance between the user and the display apparatus based on the acquired information.

20 . The method according to claim 11 , further comprising:
displaying a user interface (UI) comprising at least one menu item; storing setup information about the consumption power based on inputs received using the menu item of the user interface; and reducing the consumption power based on the stored setup information.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Park Young-Chan
• Choi Young-Ho

Classifications

• G09G2354/00

  Aspects of interface with display user · CPC title

• G06F3/165

  Management of the audio stream, e.g. setting of volume, audio stream path · CPC title

• G06F1/3278

  Power saving in modem or I/O interface · CPC title

• G06F1/3234

  Power saving characterised by the action undertaken · CPC title

• G09G2330/06

  Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation · CPC title