US 12,136,398 B2
Backlight control for display devices
Hirobumi Furihata, Tokyo (JP); Kazutoshi Aogaki, Kanagawa (JP); Takashi Nose, Kanagawa (JP); Masao Orio, Tokyo (JP); Tomoo Minaki, Tokyo (JP); and Akio Sugiyama, Tokyo (JP)
Assigned to Synaptics Incorporated, San Jose, CA (US)
Filed by Synaptics Incorporated, San Jose, CA (US)
Filed on Jul. 29, 2022, as Appl. No. 17/877,659.
Prior Publication US 2024/0038183 A1, Feb. 1, 2024
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3426 (2013.01) [G09G 2360/16 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel;
a backlight module configured to illuminate the display panel, the backlight module comprising a plurality of light sources; and
backlight control circuitry configured to:
control first luminance of a first light source of the plurality of light sources based at least in part on a first weighted average of brightness values for a first set of pixels of the display panel; and
control second luminance of a second light source of the plurality of light sources based at least in part on brightness values for a second set of pixels of the display panel,
wherein at least one pixel of the display panel belongs to both the first set and the second set.