US 12,444,376 B2
Methods and apparatus to control backlight drivers
Xiaoxiao Xu, Shanghai (CN); and Chih Pu Yeh, Shanghai (CN)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Jan. 25, 2024, as Appl. No. 18/423,014.
Prior Publication US 2025/0246158 A1, Jul. 31, 2025
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3426 (2013.01) [G09G 2310/08 (2013.01); G09G 2320/062 (2013.01); G09G 2320/064 (2013.01); G09G 2340/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Circuitry comprising:
memory; and
programmable circuitry capable of:
turning a first Light Emitting Diode (LED) off at a first time, the first time determined by a transition of a first image frame to a second image frame, the first and second image frames displayed in a Liquid Crystal Display (LCD) panel; and
turning the first LED on at a second time, the second time determined by a refresh rate of the LCD panel;
wherein:
the first LED corresponds to a pixel in the LCD panel,
the pixel begins to transition from the first image frame to the second image frame at the first time; and
the pixel completes the transition from the first image frame to the second image frame at the second time.