Instruction Manual

Working with the Tablet PC
Touchscreen
Tou chs cr eenNotes
High-quality LCD screens (TFT) are installed in F ujitsu Tablet PCs. For tech nical reasons,
these screens are manufactured for a specific re solution. An optimal, clear picture can
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 screen resolution of your Ta blet PC’s touchscreen is optimally set at the fa ctory.
Current production technology cannot guarantee an absolutely fault-free screen display. A few
isolated constant ly lit or unlit pixels (picture elements) may be present. The maximum permitted
number of such faulty pixels is spe ci fied in the international standard ISO 9241-3 07 ( Class II).
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 su bpixels 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 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 g enerat ed
by complete functionality of th e display.
Subpixel
A subpixel is a separately addressable internal structure
within a pixel that enhances the pixel fun ction.
Cluster A cluster contain
s two or more defective pixels or
subpixels in a 5 x
5 pixel block.
Background light ing
LCD screens are operated w ith background lighting. The luminosity of the background
lighting can de crease ove r the period of use of the Tablet PC . Howe ver, you can
set the brightness of your scree n manually.
Ambient light senso r
If your Tablet PC was shipped with the Windows operating system, the screen brightness is
regulated by means of the ambient light sensor and depending on the respective light conditions.
This results in optimum readability and longer battery life at the same time.
If your Tablet PC was shipped with Windows 8.1 , the adaptive brightness setting is deactivated. To
change t he ambient light sensor sett ings, select Control Panel - System and Security - Power Options -
Change plan settings - Chang e advanced power settings - Display - Activate adaptive brightness setting..
Select On to activate the adaptive brightness setting with the he lp of the ambient light sensor.
Synchronizing the display on the touchscreen and an external monitor
In Windows 8.1 wipe your finger over the screen from the right-hand edge. The setting
Charms - Devices - Second monitor opens. Select th e desired ou tput type.
You can also use the Fujitsu Displa y Ma nager in the Windows M obility Center to set the output type.
24 Fujitsu