US 12,327,532 B2
Display panel having a backlight source with a dimming function
Chao-Chin Sung, Tainan (TW); Hsin-Cheng Hung, Miao-Li County (TW); Chien-Tzu Chu, Tainan (TW); and Li-Wei Sung, Tainan (TW)
Assigned to INNOLUX CORPORATION, Miao-Li County (TW); and CARUX TECHNOLOGY PTE. LTD., Singapore (SG)
Filed by InnoLux Corporation, Miao-Li County (TW); and CARUX TECHNOLOGY PTE. LTD., Singapore (SG)
Filed on Jul. 18, 2023, as Appl. No. 18/354,082.
Claims priority of provisional application 63/371,650, filed on Aug. 17, 2022.
Claims priority of application No. 202310474486.1 (CN), filed on Apr. 28, 2023.
Prior Publication US 2024/0062731 A1, Feb. 22, 2024
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3426 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0646 (2013.01); G09G 2360/144 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a display panel;
a backlight source, disposed below the display panel and comprising a plurality of light-emitting units;
an ambient light sensor, configured to detect a brightness of an ambient light; and
a controller, electrically connected to the display panel, the backlight source, and the ambient light sensor, and configured to judge a general mode or a low-brightness mode according to according to detecting results of the ambient light sensor, wherein in the low-brightness mode, a brightness of a white frame of the display panel is greater than 0 nit and less than or equal to 50 nits, and in the general mode, the brightness of the white frame of the display panel is greater than 50 nits;
wherein the backlight source comprises a local dimming function, when the controller judges the low-brightness mode, the local dimming function is in a first mode, and when the controller judges the general mode, the local dimming function is in a second mode,
wherein in the first mode, the local dimming function is turned off, and the backlight source emits light at a predetermined brightness value.