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DIGITAL SIGNAGE
Image quality of the product
CAUSE
Due to the nature of LCD's property, Afterimage can occur. Afterimage appears when
identical frames / images are displayed continuasly. If displayed for prolonged periods of
time this can become permanent.
PREVENTION
When you display a freeze frame for a long time, lower the brightness and contrast
(Brightness, 70/ Contrast, 80). Also it can be prevented by using moving frame.
COUNTERMEASURES
T
emporary afterimage can be alleviated by displaying white or moving frame about 10
hours.(But, permanent afterimage cannot be disappeared according to the property of
LCD) This method is used to remove temporary afterimage that may occur after
displaying a still frame for a certain time.
It can take several minutes or hours to r
emove afterimage according to the severity. In
the case that your cannot avoid displaying identical still image continuously, you can
prevent it by displaying moving image for 2 or 3 minutes in every hour. As the brightness
of still image and time of display are the cause of afterimage, you are recommended to
lower the brightness in that case.
!
Above problem shall not be covered by warranty.
Be sure to understand
DID_eng.indb 5 2009-09-15 오후 8:24:20