US 11,721,257 B2
Image display device and motion detection method of image display device
Ji Han Son, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Sep. 12, 2022, as Appl. No. 17/942,993.
Application 17/942,993 is a division of application No. 16/929,851, filed on Jul. 15, 2020, granted, now 11,587,483.
Prior Publication US 2023/0005403 A1, Jan. 5, 2023
Int. Cl. G09G 3/00 (2006.01); G06T 7/246 (2017.01)
CPC G09G 3/035 (2020.08) [G06T 7/248 (2017.01); G06T 2207/20021 (2013.01); G09G 2330/022 (2013.01); G09G 2354/00 (2013.01); G09G 2360/144 (2013.01); G09G 2380/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image display device comprising:
a rollable display panel;
a motor configured to roll up or down the rollable display panel;
a housing having an internal space to accommodate the rollable display panel;
an image sensor configured to capture an image;
a motion detector configured to detect motion by analyzing image frames captured by the image sensor; and
a controller configured to control the motor to roll down the rollable display panel for switching the rollable display panel from a partial view state to a zero view state based on a determination that motion is not detected by the motion detector for a predetermined period of time while the rollable display panel is in the partial view state,
wherein in the zero view state, the rollable display panel is rolled down into the housing, and
wherein in the partial view state, the rollable display panel is partially rolled up.