Display apparatus

Patent metadata

Field	Value
Publication number	US-11902698-B2
Application number	US-202017628443-A
Country	US
Kind code	B2
Filing date	Jul 17, 2020
Priority date	Jul 31, 2019
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

The present technology relates to a display apparatus that can more reliably suppress effects of heating.
Provided is a display apparatus that includes a signal processing section, a panel section, and a vibration section. The signal processing section processes a video image signal and a sound signal. The panel section is in a plate shape and displays a video image corresponding to the video image signal. The vibration section is arranged on a back face side of the panel section and vibrates the panel section according to the sound signal. The signal processing section calculates a correction value for suppressing an amount of light emitted by the panel section on the basis of the sound signal and controls a level of the video image signal on the basis of the calculated correction value. The present technology is applicable, for example, to a television receiver.

First claim

The invention claimed is:

1. A display apparatus comprising:
a signal processing section adapted to process a video image signal and a sound signal;
a panel section in a plate shape that is adapted to display a video image corresponding to the video image signal; and
a vibration section arranged on a back face side of the panel section that is adapted to vibrate the panel section according to the sound signal, wherein
the signal processing section calculates a correction value for suppressing an amount of light emitted by the panel section on a basis of the sound signal and controls a level of the video image signal, on a basis of the calculated correction value.

2. The display apparatus according to claim 1 , wherein
the signal processing section calculates the correction value on a basis of a power value according to a sound signal output to the vibration section.

3. The display apparatus according to claim 2 , wherein
the signal processing section generates a temperature map on a basis of the power value and an ambient temperature of a surrounding region, generates a gain map of the correction value on a basis of the generated temperature map, and controls a level of the video image signal on a basis of the generated gain map.

4. The display apparatus according to claim 3 , wherein
the signal processing section calculates a reverse correction value for suppressing an amount of light emitted by the panel section on the basis of the generated temperature map and generates the gain map on a basis of the calculated reverse correction value.

5. The display apparatus according to claim 4 , wherein
a temperature increase according to the power value is added to the temperature map and an amount of radiated heat according to the ambient temperature is subtracted therefrom with passage of time.

6. The display apparatus according to claim 3 , wherein
the signal processing section controls a level of the video image signal for each predetermined region of the panel section on the basis of the gain map.

7. The display apparatus according to claim 4 , wherein
the reverse correction value is a value according to a gain for matching luminance of a region corresponding to a portion of the panel section where the vibration section is provided with luminance of a region corresponding to a portion of the panel section where the vibration section is not provided.

8. The display apparatus according to claim 2 , wherein
the signal processing section generates a temperature map on a basis of an integral value obtained by integrating the power value over a unit time, generates a gain map of the correction value on a basis of the generated temperature map, and controls the level of the video image signal on a basis of the generated gain map.

9. The display apparatus according to claim 8 , wherein
the signal processing section controls the level of the video image signal for each predetermined region of the panel section on the basis of the gain map.

10. The display apparatus according to claim 1 , wherein
the vibration section includes one or a plurality of vibrators.

11. The display apparatus according to claim 1 , wherein
the signal processing section processes a video image signal and a sound signal of content.

12. The display apparatus according to claim 11 configured as a television receiver.

Assignees

• Sony Group Corp

Inventors

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

Classifications

• H04N5/60 Primary

  for the sound signals · CPC title

• G09G3/20

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• G09G3/3208

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G09G5/10

  Intensity circuits · CPC title

• G09G2320/0233

  Improving the luminance or brightness uniformity across the screen · CPC title