Psion 8585, Руководство пользователя

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Psion 8585/8595 Vehicle-Mount Computers User Manual
Chapter 3: Basic Operation
Protecting the TFT Display from the Memory Effect
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Figure 3.6 Summit Client Utility password input
The standard password is: SUMMIT (must be entered in capital letters!) You can find details about the con-
figuration parameters in the SCU online help at:
http://www.summitdatacom.com/Documents/summit_users_guide_3_03.html
3.4 Protecting the TFT Display from the Memory Effect
The TFT display of the 8585 has to be protected from the burning in of a motionless image. An image that
has remained motionless for too long can cause irreversible damage to the display. With TFT displays there
no cathode rays burning in an afterimage as in old TV sets or monitors, but TFT displays still have a
“memory effect”. This is because with a still image the liquid crystal molecules align themselves in a certain
way and become inert if they are not moved. Like burning in the effect is irreversible, but can be avoided by
regularly turning off the display or by using a screensaver with changing content.
Define in the power management centre of the utilized operating system that the displays of the 8585
should be turned off when no user input occurs.
A motionless image can stay on the display for a maximum of 12 hours. After more than 12 hours there is
the risk of the memory effect.