US 12,477,631 B2
Dimming method and current driving device
Chi-Min Hsieh, Hsinchu (TW); and Chun-Yi Li, Hsinchu (TW)
Assigned to Macroblock, Inc., Hsinchu (TW)
Filed by Macroblock, Inc., Hsinchu (TW)
Filed on Jul. 15, 2024, as Appl. No. 18/772,377.
Claims priority of application No. 112128676 (TW), filed on Jul. 31, 2023.
Prior Publication US 2025/0048514 A1, Feb. 6, 2025
Int. Cl. H05B 45/12 (2020.01); H05B 45/325 (2020.01); H05B 45/3725 (2020.01)
CPC H05B 45/12 (2020.01) [H05B 45/325 (2020.01); H05B 45/3725 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A dimming method to be implemented by a brightness divider of a current driving device, the current driving device further including a current generator and a switch, said dimming method comprising steps of:
(A) determining whether a brightness value is smaller than or equal to a first predetermined reference value;
(B) when it is determined in step (A) that the brightness value is smaller than or equal to the first predetermined reference value, setting a magnitude value that is related to the current generator, and setting a pulse width value that is related to the switch based on the brightness value; and
(C) when it is determined in step (A) that the brightness value is not smaller than or equal to the first predetermined reference value, setting the magnitude value based on the brightness value, the first predetermined reference value and a first predetermined order setting, and setting the pulse width value based on the first predetermined reference value.