US 12,148,349 B2
Display device and operating method thereof
Jeonghwan Kwon, Seoul (KR); Eunjung Lee, Seoul (KR); Hyojeong Jeong, Seoul (KR); Kyungnam Bae, Seoul (KR); Byounghyun Shin, Seoul (KR); and Taejin Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Apr. 6, 2022, as Appl. No. 17/714,784.
Claims priority of application No. 10-2022-0025741 (KR), filed on Feb. 28, 2022.
Prior Publication US 2023/0274684 A1, Aug. 31, 2023
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2092 (2013.01) [G09G 2340/04 (2013.01); G09G 2354/00 (2013.01); G09G 2370/16 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A display device comprising:
a wireless transceiver configured to receive, from a terminal, an image signal corresponding to a source image which is being displayed by the terminal;
a display rotatable to be placed in a landscape posture mode or a portrait posture mode; and
a controller configured to:
determine a display direction of the received image signal when the display is placed in the portrait posture mode;
rotate the received image signal clockwise by 90 degrees without rotating the display while the display is placed in the portrait posture mode if the determined display direction of the received image signal is a portrait direction; and
in response to rotating the received image signal, display, on the display, a mirrored image in the portrait direction based on the rotated image signal while the display remains placed in the portrait posture mode.