US 12,406,634 B1
Display device and operating method thereof
Sanghyuk Ahn, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on May 7, 2024, as Appl. No. 18/657,577.
Claims priority of application No. 10-2024-0045737 (KR), filed on Apr. 4, 2024.
Int. Cl. G09G 3/36 (2006.01)
CPC G09G 3/3614 (2013.01) [G09G 3/3688 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0257 (2013.01); G09G 2330/021 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A display device, comprising:
a Liquid Crystal Display (LCD) panel; and
a controller configured to:
compare a first common voltage level of the LCD panel with a second common voltage level obtained after the first common voltage level, and
based on a difference from the first common voltage level to the second common voltage level being greater than a certain threshold, obtain a luminance difference value between two preceding consecutive first frames, and
based on the obtained luminance difference value, perform a polarity toggle operation for inverting a polarity of a voltage level corresponding to two consecutive second frames following the two preceding consecutive first frames by adjusting the voltage level corresponding to the two consecutive second frames.