公开(公告)号：US20240412702A1

公开(公告)日：2024-12-12

申请号：US18808734

申请日：2024-08-19

Applicant: Socionext Inc.

Inventor： Shinichi TOMIOKA ,  Nobutaka YAMAGISHI

IPC: G09G3/34 ,  G09G3/20

Abstract: An image display control device with a local dimming function includes: a brightness control unit to control brightness of a plurality of light sources based on first image information representing images to be displayed on a display unit, the light sources being included in a backlight; a pixel compensation unit to generate second image information by correcting pixel values included in the first image information based on the brightness of each light source; a first statistics obtaining unit to obtain first statistical data with respect to the pixel values included in the first image information; a second statistics obtaining unit to obtain second statistical with data respect to pixel values included in the second image information; and an anomaly detection unit to detect an anomaly of the brightness control unit or the pixel compensation unit based on the difference of the second statistical data from the first statistical data.

公开(公告)号：US20250166580A1

公开(公告)日：2025-05-22

申请号：US19033122

申请日：2025-01-21

Applicant: Socionext Inc.

Inventor： Shinichi TOMIOKA ,  Nobutaka YAMAGISHI

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/36

Abstract: An image display control device having a local dimming function, includes a luminance control unit to generate backlight control information used for controlling light sources included in a backlight based on first image information, a pixel compensation unit to generate second image information indicating an output image by correcting pixel values included in the first image information, a first statistics acquisition unit to acquire first statistical data of the pixel values, a second statistics acquisition unit to acquire second statistical data of luminance values, the luminance values corresponding to the light sources, and an abnormality detection unit to detect an abnormality of the luminance control unit according to whether or not the second statistical data is included in a range between an upper limit value and a lower limit value, the upper limit value and the lower limit value being determined by the first statistical data.