Working with the notebook
LCD screen
LCDscreenNotes
High-quality LCD screens (TFT) are installed in Fujitsu notebooks. F or technical reasons,
these screens are manufactured for a specific resolution. An optimal, clear picture ca n
only be ensured in the resolution intended for the particular screen. A screen resolution
which differs from the specification can result in an unclear picture.
The resolution of the screen of your no tebook is optimally set at the factory.
Current production technology cannot guarantee an absolutely fault-free screen display. A few
isolated constant ly lit or unlit pixels may be present. The maximum permitted number of such
faulty pixels is specified in the intern ational standard ISO 9241-307 (class 2).
Example:
A screen with a resolution of 1280 x 800 has 1280 x 800 = 1024000 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 2), a maximum of 2 light and 2 dark pixe ls and in addition 5 light or 10 dark subpixels
or an equivalent mix (1 light subpixel counts as 2 dark subp ixels) are allowed to be defective.
At a resolution of 1600 x 900 = 1 440000 pixels, a maximum of 3 light and 3 dark pixels
and in addition 7 light or 14 dark 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 generat ed
by complete funct
ionality of th e display.
Subpixel
A s ubpixel is a se
parately addressable internal structure
within a pixel t
hat enhances the pixel function.
Cluster A cluster contains two or m ore defective pixels or
subpixels in a 5 x 5 pixel block.
Background l
ighting
LCD screens a
re operated with backg round lighting. The luminosity of the background
lighting ca
n decrease during the period of use of the notebook. However, you c an
set the brig
htness of your monitor individually.
Synchroni
zing the display on the LCD screen and an external monitor
For more i
nformation, please refer to Chapter "
Key combinations", Page 47
under "Sw
itching between screen output".
Ambient light sensor
If your notebook w as shipped w ith a Windows operating system, the screen brightness is
regulated by the ambient light sensor and is dependent on the particular light conditions.
This results in opt imum readability and longer battery life a t the same time.
Usin
g a device as a tablet PC
You can execute commands as follows:
• using the stylus (supplied with your device).
• using yo ur finger
32 Fujitsu
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