Display device

Patent metadata

Field	Value
Publication number	US-11800285-B2
Application number	US-202017629611-A
Country	US
Kind code	B2
Filing date	Jul 17, 2020
Priority date	Jul 31, 2019
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

The display device is provided which includes a signal processing unit that processes an image signal and a sound signal, a plate-like panel unit that displays an image according to the image signal, and a vibration unit that is deployed on the rear face side of the panel unit and causes the panel unit to vibrate in response to the sound signal. The vibration unit includes a plurality of vibrators, and the signal processing unit outputs the sound signal not only to a sound output vibrator that is a vibrator of an output target of the sound signal from among the plurality of vibrators but also to a dispersion sound output vibrator that is a vibrator of a dispersion target of the sound signal. The present technology can be applied, for example, to a television receiver.

First claim

The invention claimed is:

1. A display device comprising:
a signal processing unit that processes an image signal and a sound signal;
a plate-like panel unit that displays an image according to the image signal; and
a vibration unit that is deployed on a rear face side of the panel unit and causes the panel unit to vibrate in response to the sound signal, wherein
the vibration unit includes a plurality of vibrators, and
the signal processing unit outputs the sound signal not only to a sound output vibrator that is a vibrator of an output target of the sound signal from among the plurality of vibrators but also to dispersion sound output vibrators that are vibrators of dispersion targets of the sound signal,
wherein
the signal processing unit delays the sound signal to be outputted to the dispersion sound output vibrators with respect to the sound signal to be outputted to the sound output vibrator, and
wherein
the signal processing unit includes
a first amplifier that amplifies a first sound signal to be outputted to the sound output vibrator with a first gain,
a delayer that delays the first sound signal to be outputted to the dispersion sound output vibrators,
a second amplifier that amplifies the delayed first sound signal with a second gain, and
an adder that adds the first sound signal amplified by the first amplifier and a second sound signal that is to be outputted to the dispersion sound output vibrators and has undergone the delaying and the amplification.

2. The display device according to claim 1 , wherein
each of the vibrators of the vibration unit is deployed for each predetermined region of the panel unit.

3. The display device according to claim 2 , wherein
the dispersion sound output vibrators are deployed within a dispersible range according to a reproduction frequency of the sound signal with reference to a deployment position of the sound output vibrator.

4. The display device according to claim 3 , wherein,
in a case where the reproduction frequency is a frequency higher than a predetermined frequency, a vibrator deployed in a surrounding area of the sound output vibrator is included in the dispersion sound output vibrators, and
in a case where the reproduction frequency is a frequency lower than the predetermined frequency, a vibrator deployed in an area other than the surrounding area of the sound output vibrator is included in the dispersion sound output vibrators.

5. The display device according to claim 2 , wherein
the dispersion sound output vibrators include a vibrator deployed in a surrounding area of the sound output vibrator.

6. The display device according to claim 1 , wherein
the signal processing unit processes an image signal and a sound signal of content.

7. The display device according to claim 6 , wherein
the display device is configured as a television receiver.

8. A display device comprising:
a signal processing unit that processes an image signal and a sound signal;
a plate-like panel unit that displays an image according to the image signal; and
a vibration unit that is deployed on a rear face side of the panel unit and causes the panel unit to vibrate in response to the sound signal, wherein
the vibration unit includes a plurality of vibrators, and
the signal processing unit outputs the sound signal not only to a sound output vibrator that is a vibrator of an output target of the sound signal from among the plurality of vibrators but also to dispersion sound output vibrators that are vibrators of dispersion targets of the sound signal,
wherein
the signal processing unit delays the sound signal to be outputted to the dispersion sound output vibrators with respect to the sound signal to be outputted to the sound output vibrator, and
wherein
the signal processing unit includes
a first limiter/compressor that performs a limiter process or a compressor process for a first sound signal to be outputted to the sound output vibrator,
a delayer that delays the first sound signal to be outputted to the dispersion sound output vibrators,
a gate/expander that performs a gate process or an expander process for the delayed first sound signal, and
an adder that adds the first sound signal having undergone the limiter process or the compressor process and a second sound signal that is to be outputted to the dispersion sound output vibrators and has undergone the delaying and the gate process or the expander process.

9. The display device according to claim 8 , wherein
the signal processing unit further includes a second limiter/compressor that performs the limiter process or the compressor process for a sum signal generated by addition by the adder.

10. The display device according to claim 8 , wherein
each of the vibrators of the vibration unit is deployed for each predetermined region of the panel unit.

11. The display device according to claim 10 , wherein
the dispersion sound output vibrators are deployed within a dispersible range according to a reproduction frequency of the sound signal with reference to a deployment position of the sound output vibrator.

12. The display device according to claim 11 , wherein,
in a case where the reproduction frequency is a frequency higher than a predetermined frequency, a vibrator deployed in a surrounding area of the sound output vibrator is included in the dispersion sound output vibrators, and
in a case where the reproduction frequency is a frequency lower than the predetermined frequency, a vibrator deployed in an area other than the surrounding area of the sound output vibrator is included in the dispersion sound output vibrators.

13. The display device according to claim 10 , wherein
the dispersion sound output vibrators include a vibrator deployed in a surrounding area of the sound output vibrator.

14. The display device according to claim 8 , wherein
the signal processing unit processes an image signal and a sound signal of content.

15. The display device according to claim 14 , wherein
the display device is configured as a television receiver.

16. A display device comprising:
a signal processing unit that processes an image signal and a sound signal;
a plate-like panel unit that displays an image according to the image signal; and
a vibration unit that is deployed on a rear face side of the panel unit and causes the panel unit to vibrate in response to the sound signal, wherein
the vibration unit includes a plurality of vibrators, and
the signal processing unit outputs the sound signal not only to a sound output vibrator that is a vibrator of an output target of the sound signal from among the plurality of vibrators but also to dispersion sound output vibrators that are vibrators of dispersion targets of the sound signal,
wherein
the signal processing unit delays the sound signal to be outputted to the dispersion sound output vibrators with respect to the sound signal to be outputted to the sound output vibrator, and
wherein
the signal processing unit includes
a delayer that delays a first sound signal to be outputted to the dispersion sound output vibrators,
a gate/expander that performs a gate process or an expander process for the delayed first sound signal,
an adder that adds the first sound signal to be outputted to the sound output vibrator and a second sound signal that is to be outputted to the dispersion sound output vibrators and has undergone the delaying and the gate process or the expander process, and
a limiter/compressor that performs a limiter process or a compressor process for a sum signal generated by addition by

Assignees

• Sony Group Corp

Inventors

• Yoshioka Hiroshi
• Suzuki Tomohiro
• Miki Daisuke
• ZEN Masao
• Ikeyama Tetsuo

Classifications

• H04R3/12 Primary

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title

• H04R1/028

  associated with devices performing functions other than acoustics, e.g. electric candles · CPC title

• H04R1/403

  loud-speakers · CPC title

• H04R7/04 Primary

  Plane diaphragms · CPC title

• H04R2201/028

  Structural combinations of loudspeakers with built-in power amplifiers, e.g. in the same acoustic enclosure (H04R2499/10 takes precedence; Single (sub)woofer with two or more satellite loudspeakers for mid- and high-frequency band reproduction driven via the (sub)woofer H04R2205/026) · CPC title