Working with the notebook
LCD screen
LCDscreenNotes
High-quality LCD screens (TFT) a re installed in Fujitsu notebooks. For technical reasons,
these screens are m anufactured for a specific resolution. An optimal, clear picture can
only be ensured in the resolution intended for the particular screen. A screen resolution
which differs from the s pecification can result in an unclear picture.
The resolution of the screen of your notebook is optimally set at the factory.
Current production technology canno t guarantee an absolutely fault-free screen display. A few
isolated constantly lit or unlit pixels (picture elements) may b e present. The maximum permitted
number of such faulty pixels is specified in the international standard ISO 9241-307 (Class II).
Example:
A screen with a resolution of 1280 x 800 has 1280 x 800 = 102 4000 pixels. Each pixel con sist s of
three subpixels (red, g reen and blue), so the re 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 s ubpixels
or an equivalent mix (1 light subpixel counts as 2 dark subpixels) are allowed to be defective.
At a resolution of 1600 x 900 = 144000 0 pixels, a m aximum of 3 light and 3 dark pixels
and in addition 7 light or 1 4 dark subpixels are allowed to be defective.
Pixel
A pixel consists of
3 subpixels, norma lly red, green and
blue. A pixel is the
smallest e lement that can be generated
by complete funct
ionality of the display.
Subpixel
A subpixel is a se
parately addressable internal structure
within a pixel t
hat enhances the pixel function.
Cluster A cluster contains two or more defective pixels or
subpixels in a 5 x 5 pixel block.
Background l
ighting
LCD screens a
re op erated with background lighting. The luminosity of the background
lighting ca
n decrease during the period of use of the notebook. However, you can
set the brig
htness of your mon itor individually.
Synchroni
zing the display on the L CD screen and an extern al monitor
For more i
nformation, please refer to Chapter "
Key combinations", Page 44
under "Sw
itching between screen output".
Ambient light sensor
If your notebook was shipped with a Windows operating system, the screen brightness is
regulated by the ambient light sensor and is depe ndent on the particular light conditions.
This results in optimum readability and longer battery life at the same time.
Fujitsu 31
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