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Fujitsu LIFEBOOK U904 - Touchscreen and LCD screen function

Fujitsu LIFEBOOK U904
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Working with the no tebook
Executing commands
Mo ve the pointer to the eld you wish to select.
Touchpad
Tap the touchpad tw ice or p ress the left b utton twice.
The command is executed.
Dragging items
Select the desired item.
Touchpad
Press and hold the left button and drag the item to the desired position
with the nger on the touchpad.
The item will be moved.
Touchscreen/LCD screen function
(device-dependent)
LCDscreenNotes
High-quality touchscreens are installed in notebooks from Fujitsu. For technical reasons, TFT
monitors are manufactured for a specic resolution. An optimal, clear picture can only be
ensured with th e correct resolution intended for the relevant TFT monitor. A monitor resolution
which differs from the specication can result in an unclear picture.
The screen r esolution of the LCD screen of your notebook is optimally set at the fact ory.
Current production technology cannot guarantee a n absolutely fault-free screen display. A few
isolated constantly lit or u nlit pixels may be present. The maximum permitted numb er of such
faulty pixels is specied in the international standard ISO 9241-307 (Class II).
Example:
A screen with a resolution of 1280 x 800 has 1280 x 800 = 102400 0 pixels. Each pixel consists of
three subpixels (red, green and blue), so there are almost 3 million subpixels in total. According to ISO
9241-307 (class II), a maximum of 2 light and 2 dark pixels and in addition 5 light or 10 dark subpixels
or an equivalent mix (1 light subpixel counts as 2 d ark subpixels) are allowed to be defective.
Pixel
A pixel consists of 3 subpixels, normally red, green and
blue. A pixel is the smallest element that can be generated
by complete functionality of the display.
Subpixel
A s ubpixel is a separately addressable internal structure
within a pixel t hat enhances the pixel function.
Cluster A cluster contains two or m ore defective p ixels or
subpixels in a 5 x 5 pixel b lock.
Background lighting
LCD screens are operated with background lighting. The luminosity o f the background
lighting can decre ase during the period of use of the notebook. However, you can
set the brightness of your monitor individually.
Synchronising t he display on the LCD screen and an external monitor
For more in formation, please refer to the chapter "
Key combinations", Page 28
under "Display output, switch between".
32 Fujitsu

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