Sharp GX20 User Manual page 151

To Turn On/Off the Backlight of the External
Display
You can turn the backlight of the external display on or
off when the phone is closed.
You can also change or specify the duration of the
external display backlight.
1.
Perform steps 1 to 4 in "To Turn On/Off the
External Display" on page 141.
2.
Press or to highlight "Backlight", then press
to select.
3.
Press or to highlight "On" to set backlight
on or "Off" to set backlight off, then press
select.
When you select "On" in step 3:
4.
Enter the duration of the backlight using 2 digits,
then press .
To Adjust the LCD Contrast of the External Display
You may sometimes need to adjust the LCD contrast of
the external display to suit certain lighting conditions.
1.
Perform steps 1 to 4 in "To Turn On/Off the
External Display" on page 141.
2.
Press or
then press
3.
Press (Low) or
for maximum clarity.
LCD contrast can be adjusted to 9 levels.
4.
Press .
to
to highlight "LCD Contrast",
to select.
(High) to adjust the contrast
Settings 143