US 12,154,522 B2
Image display device
Jongmin Lee, Seoul (KR); Sunwoo Jung, Seoul (KR); Myongyoung Lee, Seoul (KR); Kyuyong Chung, Seoul (KR); Wonki Lee, Seoul (KR); and Seokpan Kang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/254,784
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 27, 2020, PCT No. PCT/KR2020/017149
§ 371(c)(1), (2) Date May 26, 2023,
PCT Pub. No. WO2022/114301, PCT Pub. Date Jun. 2, 2022.
Prior Publication US 2024/0038184 A1, Feb. 1, 2024
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3426 (2013.01) [G09G 2320/0252 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An image display apparatus comprising:
a display panel;
a plurality of light sources configured to output light to the display panel;
a plurality of switching elements configured to switch the plurality of light sources, respectively; and
a processor configured to output a switching control signal having variable amplitude to a switching element of the plurality of switching elements,
wherein the processor is further configured to control a driving frequency of a light source of the plurality of light sources corresponding to the switching element to be equal to a second frequency higher than a first frequency corresponding to a vertical synchronization signal of the display panel.