US 11,810,523 B2
Backlight dimming processing device and timing controller for backlight dimming
Hyun Kyu Jeon, Daejeon (KR); Ji Won Lee, Daejeon (KR); Jung Eun Baek, Daejeon (KR); Xin Cui, Daejeon (KR); and Do Hoon Lee, Daejeon (KR)
Assigned to SILICON WORKS CO., LTD., Daejeon (KR)
Filed by SILICON WORKS CO., LTD., Daejeon (KR)
Filed on Apr. 20, 2021, as Appl. No. 17/235,049.
Claims priority of application No. 10-2020-0048515 (KR), filed on Apr. 22, 2020.
Prior Publication US 2021/0335288 A1, Oct. 28, 2021
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3406 (2013.01) [G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/064 (2013.01); G09G 2320/0646 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dimming processing device for adjusting a dimming value for a backlight, the dimming processing device comprising:
a dimming value receiving circuit configured to receive a first dimming value and a second dimming value, wherein the first and second dimming values are for adjusting the backlight during a first frame, and wherein the first frame includes a first time interval, a second time interval subsequent to the first time interval, and a third time interval subsequent to the second time interval; and
a dimming value adjusting circuit configured to:
change the dimming value from the first dimming value to an intermediate dimming value at a first rate during the first time interval, wherein the intermediate dimming value is a value between the first dimming value and the second dimming value,
after changing the dimming value from the first dimming value to the intermediate dimming value, change the dimming value from the intermediate dimming value to the second dimming value at a second rate during the second time interval,
wherein the second rate is different from the first rate, and
after changing the intermediate value to the second dimming value, maintaining the second dimming value during the third time interval.