IP Library › Granted Patent US 12707189
Granted Patent B2
US 12707189 · App. 18/848,453 · Granted Aug 11, 2026

Display device

Inventors: Daisuke Yamaoka (Tokyo, JP); Ismail Bin Mohd Zahidin (Selangor, MY); Dzul Asyraff Firdhaus Mustaffa Kamal (Putrajaya, MY); Huai Ern Chew (Negeri Sembilan, MY)
Assignees: Sony EMCS (Malaysia) Sdn. Bhd.; Sony Group Corporation
H04R1/26H04R1/028H04R7/045H04R17/00H04R2499/15
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Quick Facts
Patent No.
US 12707189
App. No.
18/848,453
Granted
Aug 11, 2026
Kind
B2
Abstract

A display device includes a display unit including a flat panel that displays an image, and an output unit that is arranged on a back surface of the flat panel and outputs sound by driving of a plurality of vibration exciters, which vibrates the flat panel, and left and right two cone-shaped speakers. The vibration exciters includes one vibrating element arranged near a center of the flat panel, a first piezo element arranged on a left side when facing the display device, and a second piezo element arranged on a right side when facing the display device.

Claims (20)

1 . A display device including:

a display unit including a flat panel that displays an image; and

an output unit that is arranged on a back surface of the flat panel and outputs sound by driving of a plurality of vibration exciters, which vibrates the flat panel, and left and right two cone-shaped speakers, in which

each of the vibration exciters includes

one vibrating element arranged near a center of the flat panel, a first piezo element arranged on a left side when facing the display device, and a second piezo element arranged on a right side when facing the display device, and

the vibrating element, the first piezo element, and the second piezo element are arranged in such a manner that

a difference between a distance from the vibrating element to the left cone-shaped speaker and a distance from the first piezo element to the left cone-shaped speaker is within a predetermined range, and a difference between a distance from the vibrating element to the right cone-shaped speaker and a distance from the second piezo element to the right cone-shaped speaker is within the predetermined range.

2 . The display device according to claim 1 , in which

the first piezo element is arranged

in a position in which the difference between the distance from the vibrating element to the left cone-shaped speaker and the distance from the first piezo element to the left cone-shaped speaker is within 10% of the distance from the first piezo element to the left cone-shaped speaker, and

the second piezo element is arranged

in a position in which the difference between the distance from the vibrating element to the right cone-shaped speaker and the distance from the second piezo element to the right cone-shaped speaker is within 10% of the distance from the second piezo element to the right cone-shaped speaker.

3 . The display device according to claim 2 , in which

the first piezo element and the second piezo element are arranged

above the vibrating element on the back surface of the flat panel.

4 . The display device according to claim 3 , in which

the left cone-shaped speaker

is arranged on a left side of a center in a case of facing the display device and below a center of the flat panel, and

the right cone-shaped speaker

is arranged on a right side of the center in a case of facing the display device and below the center of the flat panel.