Speaker apparatus using display window

• US 20060012559A1
• Filed: 07/14/2005
• Published: 01/19/2006
• Est. Priority Date: 07/16/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kang, Chung-Gu
• Granted Patent: US 7,764,803 B2
• Time in Patent Office: Days
• US Class Current: 345/108
• CPC Class Codes: H04R 7/04 Plane diaphragms

Abstract

A speaker apparatus for a mobile communications terminal includes a display window acts as a speaker by using the display window as a vibration plate. As a result, sound in lower frequency range can be reproduced. In addition, through use of filters, frequency characteristics can be further enhanced.

Claims

1. A speaker apparatus for a mobile device, comprising:

a display window; and

a vibrator for vibrating the display window to generate sound when an electrical audio signal is received.

2. The apparatus of claim 1, further comprising a support member for providing elastic support to the display window.

3. The apparatus of claim 2, wherein the support member supports one or more corners of the display window or one or more edges of the display window or any combination thereof.

4. The apparatus of claim 1, wherein the vibrator is positioned at a vicinity of one or more corners of the display window or at a vicinity of one or more edges of the display window or any combination thereof.

5. The apparatus of claim 1, wherein the vibrator comprises:

a magnet or a magnetic material attached the display window; and

a magnetism generator arranged to face the magnet or magnetic material, for generating a magnetism according to the electrical audio signal.

6. The apparatus of claim 5, wherein the magnetism generator is an electromagnet.

7. The apparatus of claim 1, wherein the vibrator is installed between the display window and a display module.

8. The apparatus of claim 1, wherein the display window and the vibrator are positioned in a cabinet which has a chamber-like shape.

9. The apparatus of claim 8, further comprising:

a stopping jaw positioned at an outer circumference of the display window; and

a first rib protruding from the cabinet to face the stopping jaw.

10. The apparatus of claim 9, wherein the stopping jaw and the first rib have a gap therebetween.

11. The apparatus of claim 9, further comprising:

a second rib protruding from the stopping jaw for preventing the display window from being separated from the mobile communications terminal; and

a damper installed between the first and second ribs.

12. The apparatus of claim 11, wherein the damper is formed from at least one of a compression sponge or a resin.

13. The apparatus of claim 1, further comprising a filter for receiving the electrical audio signals from an audio interface and outputting to the vibrator electrical audio signals within a particular frequency range.

20. The apparatus of claim 13, wherein the filter is one of a low pass filter, a band pass filter, and a high pass filter.

21. The apparatus of claim 13, wherein a frequency response characteristics of the filter is adjustable.

22. The apparatus of claim 1, further comprising one or more loud speakers.

14. A speaker apparatus for a mobile device, comprising:

a display window;

a first magnet or magnetic material mounted on the display window; and

a second magnet installed to face the first magnet or magnetic material for changing a magnetism according to an electrical audio signal outputted from an audio interface to vibrate the display window through an interaction with the first magnet or magnetic material.

15. The apparatus of claim 14, further comprising a support member for elastically supporting the display window.

16. The apparatus of claim 15, wherein the support member is a coil spring for supporting one or more corners of the display window or one or more edges of the display window or any combination thereof.

17. The apparatus of claim 14, wherein the first magnet or magnetic material is mounted on one or more corners of the display window or one or more edges of the display window or any combination thereof.

18. The apparatus of claim 14, wherein the first magnet or magnetic material is a permanent magnet and the second magnet is an electromagnet.

19. The apparatus of claim 14, further comprising a filter for outputting to the second magnet electrical audio signals of a particular frequency range by receiving and filtering electrical audio signals from an audio interface.

23. The apparatus of claim 19, wherein the filter is one of a low pass filter, a band pass filter, and a high pass filter.

24. The apparatus of claim 19, wherein a frequency response characteristics of the filter is adjustable.

25. The apparatus of claim 14, further comprising one or more loud speakers.