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Working with the Tablet PC
Touchscreen
TouchscreenNotes
High-quality TFT displays are installed in Tablet PCs from Fujitsu Technology Solutions GmbH. For
technical reasons, TFT monitors are manufactured for a specific resolution. An optimal, clear
picture can only be ensured with the correct resolution intended for the relevant TFT monitor. A
monitor resolution which differs from the specification can result in an un clear picture.
The screen resolution of your Tablet PC’s touchscreen is optimally set at the factory.
The standard o f production techniques today cannot guarant ee an absolutely fault-free screen
display. A few isolated constant lit or unlit pixels (picture elements) may be present. The maximum
permitted number of pixels fa ults is stipulated in the international standard ISO 9241-3 (Class II).
Example:
A monitor 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 9241-3 (class II), a maximum of 2 light and 2 dark pixels and an additional 5 light or 10 dark
subpixels or a corresponding mix may be defective (1 light subpixel counts as 2 dark subpixels).
Pixel
A pixel con sists 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 subpixel is a separat ely ad dressable 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
TFT monitors are operated with background lighting. The luminosity of the
background lighting c an decrease while the Tablet PC is in use. However, you
can set the brightness of your monitor individually.
Select display orientation (portrait or
landscape orientation)
LandscapeorientationPortraitorientationDisplayorientation
You c an choose to use either portrait or landscape orientation for the display.
The alignment of the screen always automatically adapts to the alignment in which you are using the
Tablet PC. If you hold the Tablet PC in portrait orientation, the image will b e shown in portrait format.
If you hold the Tablet PC in landscape orientation, the image will be shown in landscape format.
If you want to disable automatic matching of the alignment, p roceed a s follows:
► From All apps, select the option Settings.
► Tap on Display and activate the setting Auto-rotate screen.
The tick on the setting d isappears, matching of the alignment is disabled.
► To re-enable m atching of the alignment, tap a gain on the setting Auto-rotate screen.
The tick on the setting appears, ma tching of the alignment is enabled.
20 Fujitsu Technology Solutions