User's Manual

Table Of Contents
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 specic 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 specication 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 ed in the international standard ISO 9241-307 (Class 2).
Example:
A monitor with a resolution of 1,280 x 800 has 1,280 x 800 = 1,024,000 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 2), 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 generated
by complete functionality of th e display.
Subpixel
A subpixel is a separately addressable internal structure
within a pixel that enhances the pixel function.
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 b ackground
lighting can de crease ove r the period of use of the Tablet PC . Howe ver, you can
adjust the brightness of your monitor y ourself.
Ambient light senso r
If your Tablet PC was shipped with the Windows operating system, the screen brightness
is regulated by the ambient light sensor and is dependent on the particular 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 deact ivated. To
change the ambient light sensor settings, 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 7, you can switch betwe en touch scree n and external monitor, if you open
Control P an el - Windows Mobility Center,sectionExternal Display.
In Windows 8.1 wipe your nger 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 Display Ma na g e r in the Windows Mobility Center t o se t the output type.
26 Fujitsu