Telefunken TF-MID7805G Instruction Manual page 17

Areas with non-uniform backlite on the edges of the screen are normal, this is a
sctructural feature of the LCD-screen and is not a warranty case.
The LCD-screen of the tablet PC is a high-technology device, containing a great
number of thin-film transistors which give a clear, finely detailed picture. Sometimes inactive dots
of various colors (blue, green, red, black or white)may appear on the screen. This is not a defect
and does not affect the characteristics of your device.
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