Fujitsu EM7455D2 Operating Manual page 29

Current production technology cannot guarantee an absolutely fault-free screen display. A few
isolated constantly lit or unlit pixels may be present. The maximum permitted number of such
faulty pixels is specified in the international standard ISO 9241-307 (Class II).
Example:
A monitor with HD resolution 1280 x 1024 has 1,310,720 pixels. Each pixel consists of
three subpixels (red, green, and blue), which means that there are almost 3.9 million
subpixels in total. According to ISO 9241-307 (class II), a maximum of 3 light and 3
dark pixels and, in addition, 7 light or 13 dark subpixels or an equivalent mix (1 light
subpixel counts as 2 dark subpixels) are allowed to be defective.
Pixel
Subpixel
Cluster
Background lighting
LCD screens are operated with background lighting. The luminosity of the background
lighting can decrease over the period of use of the Tablet PC. However, you
can set the brightness of your screen yourself.
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 10, the adaptive brightness setting is activated. To
change the ambient light sensor settings, select Control Panel - System and Security - Power Options -
Change plan settings - Change advanced power settings - Display - Enable adaptive brightness..
Synchronizing the display on the touchscreen and an external monitor
In Windows 10 you can proceed as follows to set the output type:
► Wipe your finger over the screen starting from the right-hand edge.
► Select All settings.
► Look for the keyword "project".
► Select the required function.
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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