US 12,407,990 B2
Panel speaker
Kazuki Matsui, Kobe (JP)
Assigned to DENSO TEN Limited, Kobe (JP)
Filed by DENSO TEN Limited, Hyogo (JP)
Filed on Mar. 15, 2023, as Appl. No. 18/184,206.
Claims priority of application No. 2022-169247 (JP), filed on Oct. 21, 2022.
Prior Publication US 2024/0137708 A1, Apr. 25, 2024
Prior Publication US 2024/0236581 A9, Jul. 11, 2024
Int. Cl. H04R 17/00 (2006.01)
CPC H04R 17/00 (2013.01) [H04R 2499/15 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A panel speaker comprising:
a single vibration panel formed by adhering to each other one surface of a first panel and one surface of a second panel;
a first vibration actuator configured to drive and vibrate the single vibration panel; and
a second vibration actuator configured to drive and vibrate the single vibration panel, wherein
the single vibration panel has, in a plan view, a first non-adhesive region and a second non-adhesive region in both of which the first panel and the second panel are not bonded to each other,
the first vibration actuator is coupled to another surface of the second panel to drive the first non-adhesive region of the single vibration panel, and the second vibration actuator is coupled to the other surface of the second panel to drive the second non-adhesive region of the single vibration panel, and
the first vibration actuator and the second vibration actuator are not directly coupled to the first panel.
 
19. A display panel speaker for a-stereo sound, comprising:
a display panel;
a vibration propagation panel;
stripe shaped first, second and third adhesive patterns formed between the display panel and the vibration propagation panel;
a first vibration actuator that (i) is disposed between the first and the second adhesive patterns, (ii) is adhered to the vibration propagation panel to drive and vibrate the vibration propagation panel, and (iii) is not directly adhered to the display panel; and
a second vibration actuator that (i) is disposed between the second and the third adhesive patterns, (ii) is adhered to the vibration propagation panel to drive and vibrate the vibration propagation panel, and (iii) is not directly adhered to the display panel.