Video display device, television receiver, transmitting device, control program, and recording medium

Patent metadata

Field	Value
Publication number	US-2019052833-A1
Application number	US-201716079066-A
Country	US
Kind code	A1
Filing date	Jun 22, 2017
Priority date	Jul 1, 2016
Publication date	Feb 14, 2019
Grant date	—

Abstract

A technology of preventing feeling of a viewer on brightness from significantly changing when content is switched is provided. A video display device (1) includes a calculation unit (23) that calculates video feature relating to a display video, and a mute video display unit that displays a mute video posterior to a first display video, in which luminance of the mute video is luminance corresponding to a value of the video feature relating to the first display video.

First claim

1 . A video display device comprising:
a calculation unit that calculates video feature relating to a display video; and a mute video display unit that displays a mute video posterior to a first display video, wherein luminance of the mute video is luminance corresponding to a value of the video feature relating to the first display video.

2 . The video display device according to claim 1 ,
wherein the mute video display unit displays the mute video prior to the second display video, wherein the video display device includes an acquisition unit that acquires a video feature relating to the second display video from meta information relating to the display video, and wherein the luminance of the mute video is luminance corresponding to values of the video features relating to the first display video and the second display video.

3 . The video display device according to claim 2 ,
wherein the calculation unit calculates a video feature within a predetermined period of the display video, and wherein the luminance of the mute video is luminance corresponding to the value of the video feature within the predetermined period of the first display video and the value of the video feature within the predetermined period of the second display video.

4 . The video display device according to claim 1 ,
wherein the video feature is a sense luminance value.

5 . The video display device according to claim 4 ,
wherein the calculation unit calculates the sense luminance value with reference to at least one of an average luminance, a maximum luminance, a median value of the luminance value, and MaxFALL of the display video.

6 . The video display device according to claim 1 ,
wherein the calculation unit calculates the sense luminance value by excluding at least one of a screen having an average luminance less than or equal to a first threshold value and a screen having an average luminance greater than or equal to a second threshold value, among the display videos.

7 . A video display device comprising:
an acquisition unit that acquires video features of one or a plurality of contents from meta information on a display video; and a mute video display unit that displays a mute video posterior to a first display video and prior to a second display video, wherein luminance of the mute video is luminance corresponding to a value of a video feature relating to the first display video and a value of a video feature relating to the second display video.

8 . The video display device according to claim 7 ,
wherein the acquisition unit acquires a video feature within a predetermined period of the first display video and a video feature within a predetermined period of the second display video, and wherein the luminance of the mute video is luminance corresponding to a value of a video feature within a predetermined period of the first display video and a value of a video feature within a predetermined period of the second display video.

9 . The video display device according to claim 7 ,
wherein the acquisition unit acquires video features of one or a plurality of contents from a video component descriptor that is included in an MMT package table which is meta information on the display video.

10 . The video display device according to claim 7 ,
wherein the acquisition unit acquires video features of one or a plurality of contents from an event information table that is meta information on the display video.

11 . A television receiver comprising:
the video display device according to claim 1 .

12 . A transmitting device comprising:
a transmitting unit that transmits video data of one or a plurality of contents and sense luminance information indicating sense luminance values of the one or the plurality of contents.

13 . The transmitting device according to claim 12 ,
wherein the transmitting unit transmits the sense luminance information by including the sense luminance information in a video component descriptor that is included in an MMT package table.

14 . The transmitting device according to claim 12 ,
wherein the transmitting unit transmits the sense luminance information by including the sense luminance information in an event information table.

15 . (canceled)

16 . (canceled)

17 . A computer readable recording medium comprising:
the control program that causes a computer to function as the video display device according to claim 1 .

18 . A computer readable recording medium comprising:
the control program that causes a computer to function as the video display device according to claim 7 .

19 . A computer readable recording medium comprising:
the control program that causes a computer to function as the transmitting device according to claim 12 .

20 . A method of displaying a video, comprising:
a calculation step that calculates video feature relating to a display video; and a mute video display step of displaying a mute video posterior to a first display video, wherein luminance of the mute video is luminance corresponding to a value of the video feature relating to the first display video.

21 . A method of displaying a video, comprising:
an acquisition step of acquiring video features of one or a plurality of contents from meta information on a display video; and a mute video display step of displaying a mute video posterior to a first display video and prior to a second display video, wherein luminance of the mute video is luminance corresponding to a value of a video feature relating to the first display video and a value of a video feature relating to the second display video.

22 . A transmission method comprising:
a transmitting step of transmitting video data of one or a plurality of contents and sensing luminance information indicating sense luminance values of the one or the plurality of contents.

23 . A television receiver comprising:
the video display device according to claim 7 .

Assignees

• Sharp Kk

Inventors

• Sakurai Ryoji
• Suzuki Hideki
• Nishigaki Tomoo
• Yoshiyama Kazuyoshi
• Shibamoto Naoaki
• Tetsuka Yasushi

Classifications

• H04N7/007

  Systems with supplementary picture signal insertion during a portion of the active part of a television signal, e.g. during top and bottom lines in a HDTV letter-box system · CPC title

• H04N5/57 Primary

  Control of contrast or brightness · CPC title

• H04N7/0255

  Display systems therefor · CPC title

• H04N17/004

  for digital television systems · CPC title

• H04N7/035

  Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal · CPC title