US 12,288,529 B2
Driving controller and display device including the same
Kihyun Pyun, Yongin-si (KR); Seungho Park, Yongin-si (KR); and Sung-Mo Yang, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-Si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jun. 21, 2024, as Appl. No. 18/750,577.
Claims priority of application No. 10-2023-0080308 (KR), filed on Jun. 22, 2023.
Prior Publication US 2024/0428742 A1, Dec. 26, 2024
Int. Cl. G09G 3/3275 (2016.01); G09G 3/32 (2016.01)
CPC G09G 3/3275 (2013.01) [G09G 3/32 (2013.01); G09G 2310/0275 (2013.01); G09G 2320/0271 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/021 (2013.01); G09G 2330/025 (2013.01); G09G 2330/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A driving controller comprising:
an overcurrent load calculator configured to calculate a load of an input image signal, to compare the load and a reference load, and to output a first signal corresponding to a first comparison result;
an overcurrent reference controller configured to analyze a grayscale of the input image signal and to output one of a first reference current signal corresponding to the grayscale and a second reference current signal, whose current level is higher than that of the first reference current signal, as a reference current signal;
a current sensor configured to receive a feedback current signal, to compare a current level of the feedback current signal and a current level of the reference current signal, and to output a second signal corresponding to a second comparison result; and
a voltage controller configured to output a voltage control signal for adjusting a voltage level of a driving voltage, based on the first signal and the second signal.