US 12,170,046 B2
Power system for display apparatuses
Yong Sung Ahn, Daejeon (KR)
Assigned to LX SEMICON CO., LTD., Daejeon (KR)
Filed by LX SEMICON CO., LTD., Daejeon (KR)
Filed on Jun. 28, 2023, as Appl. No. 18/343,432.
Application 18/343,432 is a continuation of application No. 17/745,030, filed on May 16, 2022, granted, now 11,727,844.
Claims priority of application No. 10-2021-0068244 (KR), filed on May 27, 2021.
Prior Publication US 2023/0360577 A1, Nov. 9, 2023
Int. Cl. G09G 3/20 (2006.01); G06T 7/00 (2017.01); G06T 7/11 (2017.01); G06T 7/90 (2017.01)
CPC G09G 3/20 (2013.01) [G06T 7/0002 (2013.01); G06T 7/11 (2017.01); G06T 7/90 (2017.01); G06T 2207/10024 (2013.01); G06T 2207/20021 (2013.01); G06T 2207/20084 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/043 (2013.01); G09G 2330/021 (2013.01); G09G 2360/16 (2013.01)] 17 Claims
OG exemplary drawing
 
16. A method for driving at least one display apparatus, the method comprising:
analyzing image data to predict a pixel degradation degree of one or more pixels in a region of a display panel;
determining one of a high power mode, a middle power mode, and a low power mode as an operation mode of said at least one display apparatus based on the predicted pixel degradation degree; and
based on the determined operation mode, supplying first power or second power to the display panel, wherein
supplying the first power or the second power to the display panel comprises:
using a pulse width modulation (PWM) scheme to supply the first power to the display panel in case the high power mode is determined as the operation mode; and
using a pulse frequency modulation (PFM) scheme to supply the second power to the display panel in case either the middle power mode or the low power mode is determined as the operation mode.