US 11,790,843 B2
Signal processing apparatus, signal processing method, and display apparatus
Masao Zen, Chiba (JP); Syunsuke Kikuchi, Aichi (JP); Daisuke Miki, Tokyo (JP); Kazuhiro Nukiyama, Kanagawa (JP); Kazutaka Kobayashi, Kanagawa (JP); Yasushi Konuma, Kanagawa (JP); and Kazuki Uchida, Kanagawa (JP)
Assigned to Sony Group Corporation
Appl. No. 17/919,631
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Apr. 19, 2021, PCT No. PCT/JP2021/015796
§ 371(c)(1), (2) Date Oct. 18, 2022,
PCT Pub. No. WO2021/220854, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 2020-081151 (JP), filed on May 1, 2020.
Prior Publication US 2023/0140888 A1, May 11, 2023
Int. Cl. G09G 3/3208 (2016.01)
CPC G09G 3/3208 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/041 (2013.01); G09G 2320/046 (2013.01); G09G 2360/16 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A signal processing apparatus comprising:
a signal processing unit configured to
acquire, in changing a video signal from a low luminance display signal to a high luminance display signal by luminance enhancement, an accumulated load increase amount obtained by measuring and accumulating amounts of increase in load on a display panel caused by luminance enhancement, and
adaptively control, in reference to the accumulated load increase amount acquired, a first gain for improving luminance of the video signal, according to a degree of effect of deterioration in element of the display panel, wherein
the signal processing unit additionally adds the first gain to a second gain that is used for luminance enhancement, to thereby enhance the luminance of the video signal.