LG 42SH7DB Owner's Manual page 23

CAUTION
• Image sticking does not occur when using constantly changing images but may occur when using a fixed
image for an extended period of time. Therefore, it is recommended that you use the instructions below
to decrease the likelihood of image sticking occurring when using a fixed image. It is recommended that
you change the screen at least once every 12 hours at the very minimum; if done more frequently, the
prevention of image sticking is more effective.
Recommended operating conditions
1
Change the background and the character
colors using the same time interval.
ID: UPM 123
PW: ****
When changing colors, using complementary
colors helps to prevent image sticking.
BM
CF CF
ITO or MoTi Pixel Layer
I D : UPM123
PW : ******
ID: UPM 123
PW: ****
Glass
BM BM
CF
OC
PI
LC
PI
TFT Layers
Glass
I D : UPM123
PW : ******
Change the image using the same time
2
interval.
Make sure that the characters or images before
changing the image remain in the same location
after changing the image.
What is image sticking?
When the LCD panel displays a static image for an
CF
extended period of time, it can cause a voltage
difference between the electrodes that operate
the liquid crystals. When the voltage difference
between the electrodes builds up over time, liquid
crystals have a tendency to remain aligned in
one direction. During this process, a previously
displayed image remains visible. This phenomenon
is referred to as image sticking.
23