US 12,002,432 B2
Information processing method, information processing program, information processing device, and image display device
Kohei Suzaki, Komatsushima (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on May 27, 2021, as Appl. No. 17/303,400.
Claims priority of application No. 2020-095050 (JP), filed on May 29, 2020; and application No. 2020-146341 (JP), filed on Aug. 31, 2020.
Prior Publication US 2021/0375220 A1, Dec. 2, 2021
Int. Cl. G09G 3/34 (2006.01); G09G 3/36 (2006.01)
CPC G09G 3/3426 (2013.01) [G09G 3/36 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/0626 (2013.01); G09G 2360/16 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An information processing method, comprising:
inputting first luminance profile data of spreading of light when one light source of a backlight device including at least one light source is lit; and
thinning by reducing a data amount of values of the first luminance profile data with adjustment of a thin-out spacing according to positions in a luminance distribution of the at least one light source based on the first luminance profile data to generate second luminance profile data, wherein
the luminance distribution based on the first luminance profile data is divided into at least a first region, a second region, and a third region,
a spatial luminance variation in the first region is larger than a spatial luminance variation in the second region and a spatial luminance variation in the third region,
the spatial luminance variation in the third region is smaller than the spatial luminance variation in the second region,
the thinning is not performed in the first region,
a ratio of a data amount after the thinning in the second region to a data amount before the thinning in the second region is larger than a ratio of a data amount after the thinning in the third region to a data amount before the thinning in the third region.