MOBILE TERMINAL

• US 20130017867A1
• Filed: 06/21/2012
• Published: 01/17/2013
• Est. Priority Date: 07/13/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Byungwoon, LEE, Sangman, Park, Jina, Ha, Junghyeong, Kwon, Youngbae, Yun, Changwon
• Granted Patent: US 9,014,761 B2
• Time in Patent Office: Days
• US Class Current: 455/566
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 7/06 with core of ferromagnetic material H01Q7/02 takes precedence

Abstract

A mobile terminal is provided that includes a main body in which a structure is mounted, an antenna coil formed to be wound along edges of the structure to receive a change in magnetic flux in a vicinity of the main body, an electronic element disposed to be adjacent to the structure, and a ferrite sheet configured to remove noise with respect to reception of the change in the magnetic flux and disposed on one surface of the electronic element such that a distance is formed between the ferrite sheet and the antenna coil.

Claims

1. A mobile terminal comprising:

a main body in which a structure is provided;

an antenna coil wound along edges of the structure to receive a change in magnetic flux in a vicinity of the main body;

an electronic element to be adjacent to the structure; and

a ferrite sheet to remove noise with respect to reception of the change in the magnetic flux, and the ferrite sheet is provided on one surface of the electronic element such that a distance is provided between the ferrite sheet and the antenna coil.

2. The mobile terminal of claim 1, wherein the main body includes an accommodation portion to receive a battery, and the antenna coil is wound along edges of the accommodation portion to receive a change in magnetic flux in the vicinity of the main body, and the ferrite sheet to restrain interference to the change in the magnetic flux by a conductor provided in the main body, and the ferrite sheet is provided on the battery such that the distance is formed between the ferrite sheet and the antenna coil.

3. The mobile terminal of claim 2, wherein the accommodation portion comprises:

a side wall portion that protrudes in a closed loop form from one surface of the structure provided on the main body to define an accommodation space of the accommodation portion; and

a bottom portion formed in a direction that crosses the side wall portion to allow the battery to be provided thereon.

4. The mobile terminal of claim 3, wherein the antenna coil is wound around an outer circumferential surface of the side wall portion such that the distance is provided at least by a thickness of the side wall.

5. The mobile terminal of claim 4, wherein a stop protrusion is provided on the outer circumferential surface of the side wall portion to catch the antenna coil.

6. The mobile terminal of claim 4, wherein an accommodation recess is provided on the outer circumferential surface of the side wall portion to accommodate at least a portion of the antenna coil.

7. The mobile terminal of claim 3, wherein the battery has a front surface, a rear surface, and a lateral surface, and the ferrite sheet includes a first ferrite sheet on the lateral surface of the battery such that the first ferrite sheet faces the side wall portion of the accommodation portion.

8. The mobile terminal of claim 7, wherein the ferrite sheet further includes a second ferrite sheet on at least one of the front surface or the rear surface of the battery.

9. The mobile terminal of claim 2, further comprising a coupling terminal to electrically connect to a connection terminal of the battery, and the coupling terminal is provided on the accommodation portion, and the ferrite sheet is provided such that at least a portion of the ferrite sheet faces in a same direction as that of the rear surface of the main body in a state in which the connection terminal and the coupling terminal are electrically connected.

10. The mobile terminal of claim 1, further comprising a window provided in the main body, and a display that is provided to correspond to the window, and the antenna coil is wound along edges of the window to transmit or receive a radio signal in relation to near field communication, the ferrite sheet to remove noise with respect to the radio signal, and the ferrite sheet being provided on one surface of the display such that the distance is formed between the ferrite sheet and the antenna coil.

11. The mobile terminal of claim 10, further comprising:

a touch sensor between the window and the display to sense a touch input,

wherein the ferrite sheet is between the touch sensor and the display to form a buffer.

12. The mobile terminal of claim 11, wherein the ferrite sheet extends along edges of the display to form a loop.

13. The mobile terminal of claim 11, wherein the touch sensor includes electrode films with a conductive pattern formed thereon, and the antenna coil is formed on a surface of one of the electrode films.

14. The mobile terminal of claim 11, wherein the antenna coil is provided between the window and the touch sensor.

15. The mobile terminal of claim 10, wherein the window is made of a light-transmissive material, and the window is separated into an opaque edge region and a central region that is surrounded by the opaque edge region, and the antenna coil is provided on the opaque edge region of the window.

16. The mobile terminal of claim 15, wherein the main body has a bezel portion, and at least a portion of the edge region is provided on the bezel portion, and the antenna coil is provided on the bezel portion.

17. The mobile terminal of claim 10, wherein the window includes a front surface, a rear surface, and a lateral surface, and the antenna coil is formed to surround the lateral surface of the window.

18. The mobile terminal of claim 10, further comprising:

a touch sensor for sensing a touch input is disposed between the window and the display, and

a flexible circuit board that extends from the touch sensor, and the flexible circuit board is electrically connected to the antenna coil to allow the radio signal to be processed.

19. The mobile terminal of claim 10, wherein the display is provided in a frame, and the antenna coil is formed to be wound around an outer circumferential surface of the frame.

20. A mobile terminal comprising:

a main body having an accommodation portion, the accommodation portion including a bottom portion and a side wall portion;

an antenna coil provided at an outer surface of the side wall portion, the antenna coil to receive a change in magnetic flux;

an electronic element to be adjacent to the accommodation portion; and

a ferrite sheet to remove noise with respect to reception of the change in the magnetic flux, and the ferrite sheet is provided at one surface of the electronic element such that a space is provided between the ferrite sheet and the antenna coil.

21. The mobile terminal of claim 20, wherein the electronic element is a battery, and the ferrite sheet is provided on the battery.

22. The mobile terminal of claim 21, wherein the ferrite sheet includes a first ferrite sheet on one surface of the battery such that the first ferrite sheet faces the side wall portion of the accommodation space.

23. The mobile terminal of claim 22, wherein the ferrite sheet further includes a second ferrite sheet on at least one of a front surface or a rear surface of the battery.

24. The mobile terminal of claim 21, further comprising a coupling terminal to electrically connect to a connection terminal of the battery, and the coupling terminal is provided on the bottom portion of the accommodation portion, and the ferrite sheet is provided such that at least a portion of the ferrite sheet faces in a same direction as that of a rear surface of the main body in a state in which the connection terminal and the coupling terminal are electrically connected.

25. The mobile terminal of claim 20, wherein the antenna coil is wound around an outer circumferential surface of the side wall portion.

26. The mobile terminal of claim 25, wherein a stop protrusion is provided on the outer circumferential surface of the side wall portion.

27. The mobile terminal of claim 25, wherein an accommodation recess is provided on the outer circumferential surface of the side wall portion.

28. The mobile terminal of claim 20, further comprising a circuit board to connect to the antenna coil and to process radio signals received by the antenna coil.