US 11,812,191 B2
Display system, display method, and display apparatus
Kengo Terada, Osaka (JP); Masayuki Kozuka, Osaka (JP); Takahiro Nishi, Nara (JP); and Tadamasa Toma, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Feb. 28, 2022, as Appl. No. 17/682,139.
Application 17/682,139 is a continuation of application No. 16/951,346, filed on Nov. 18, 2020, granted, now 11,297,278.
Application 16/951,346 is a continuation of application No. 16/921,218, filed on Jul. 6, 2020, granted, now 11,115,616, issued on Sep. 7, 2021.
Application 16/921,218 is a continuation of application No. 16/575,633, filed on Sep. 19, 2019, granted, now 10,791,300, issued on Sep. 29, 2020.
Application 16/575,633 is a continuation of application No. 16/111,710, filed on Aug. 24, 2018, granted, now 10,491,853, issued on Nov. 26, 2019.
Application 16/111,710 is a continuation of application No. 15/583,050, filed on May 1, 2017, granted, now 10,097,786, issued on Oct. 9, 2018.
Application 15/583,050 is a continuation of application No. 15/367,222, filed on Dec. 2, 2016, granted, now 9,762,843, issued on Sep. 12, 2017.
Application 15/367,222 is a continuation of application No. PCT/JP2015/002611, filed on May 25, 2015.
Claims priority of provisional application 62/009,978, filed on Jun. 10, 2014.
Claims priority of application No. 2015-089812 (JP), filed on Apr. 24, 2015.
Prior Publication US 2022/0191425 A1, Jun. 16, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 5/57 (2006.01); G06F 3/14 (2006.01); H04N 5/76 (2006.01); H04N 7/01 (2006.01); G09G 5/10 (2006.01); H04N 5/20 (2006.01); H04N 7/015 (2006.01); H04N 9/79 (2006.01); H04N 9/87 (2006.01)
CPC H04N 5/57 (2013.01) [G06F 3/14 (2013.01); G09G 5/10 (2013.01); H04N 5/20 (2013.01); H04N 5/76 (2013.01); H04N 7/01 (2013.01); H04N 7/015 (2013.01); H04N 7/0125 (2013.01); H04N 9/7925 (2013.01); H04N 9/87 (2013.01); G09G 2320/0276 (2013.01); G09G 2370/04 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
an electro-optical transfer function (EOTF) converter that receives a video signal, being received by using an input interface, having a first luminance range and performs EOTF conversion on the video signal to obtain a first luminance value;
a luminance converter, which is provided for producing a second video signal having a second luminance range, a maximum value of the second luminance range being smaller than a maximum value of the first luminance range, the luminance converter that converts the first luminance value into a second luminance value within the second luminance range, the maximum value of the second luminance range being larger than a maximum value of a luminance of a Standard Dynamic Range (SDR) signal, and the maximum luminance value of the SDR signal being 100 nit; and
a display that displays the second video signal having the second luminance range based on the second luminance value,
wherein the maximum value of the second luminance range is a predetermined luminance within a displayable range of the display, and is greater than the maximum luminance value of the SDR signal,
wherein the luminance converter performs conversion of the first luminance value into the second luminance value, based on characteristic information on a characteristic of the display apparatus, and
wherein a bit width of a code value of the video signal is 12 bits.