US 12,087,202 B2
Voltage drop compensation system of display panel, and display driving device for compensating for voltage drop of display panel
Jun Young Park, Daejeon (KR); Min Ji Lee, Daejeon (KR); Gang Won Lee, Daejeon (KR); Young Kyun Kim, Daejeon (KR); Ju Hyoung Lim, Daejeon (KR); and Ji Won Lee, Daejeon (KR)
Assigned to LX SEMICON CO., LTD., Daejeon (KR)
Filed by LX Semicon Co., Ltd., Daejeon (KR)
Filed on Aug. 23, 2023, as Appl. No. 18/237,252.
Application 18/237,252 is a continuation of application No. 17/851,472, filed on Jun. 28, 2022, granted, now 11,776,451.
Claims priority of application No. 10-2021-0083737 (KR), filed on Jun. 28, 2021; and application No. 10-2022-0077741 (KR), filed on Jun. 24, 2022.
Prior Publication US 2023/0395011 A1, Dec. 7, 2023
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2007 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01); G09G 2360/145 (2013.01); G09G 2360/16 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a data receiver receiving and restoring an image data and outputting the image data;
a voltage drop compensator receiving the image data and a voltage drop compensation value and generating a voltage drop compensation data by applying the voltage drop compensation value to the image data corresponding to a plurality of blocks, each block comprising a plurality of pixels;
a Mura compensator receiving the voltage drop compensation data and generating a Mura compensation value for each block with the voltage drop compensated image data; and
an image signal output unit receiving to a Mura compensation value and outputting a Mura compensated image data in accordance with the Mura compensation data to the plurality of blocks to maintain uniform luminance in the plurality of blocks.