Touchscreen; Background Lighting - Fujitsu STYLISTIC Q584 Operating Manual

Touchscreen

Notes Touchscreen
High-quality TFT displays are installed in Tablet PCs from Fujitsu. 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 unclear picture.
The screen resolution of your Tablet PC's touchscreen is optimally set at the factory.
The standard of production techniques today cannot guarantee 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 faults is stipulated in the international standard ISO 9241-307 (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 9241-307 (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
Subpixel
Cluster

Background lighting

TFT monitors are operated with background lighting. The luminosity of the
background lighting can decrease while the Tablet PC is in use. However, you
can set the brightness of your monitor individually.
Ambient light sensor
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 the ambient light sensor settings, select Control Panel - System and Security - Power Options -
Change plan settings - Change advanced power settings - Display - Activate adaptive brightness setting..
Select On to activate the adaptive brightness setting with the help of the ambient light sensor.
Synchronising 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 the desired output type.
You can also use the Fujitsu Display Manager in the Windows Mobility Center to set the output type.
Fujitsu
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 the display.
A subpixel is a separately addressable internal structure
within a pixel that enhances the pixel function.
A cluster contains two or more defective pixels or
subpixels in a 5 x 5 pixel block.
Working with the Tablet PC
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