Lcd Screen - Fujitsu LIFEBOOK T938 Operating Manual

Working with the notebook

LCD screen

Notes LCDscreen
Fujitsu notebooks have high-quality LCD monitors (TFT). For technical reasons, these
monitors are manufactured for a specific resolution. An optimal, clear picture can only
be ensured with the resolution intended for the relevant monitor. A resolution which
differs from the specification can result in an unclear picture.
The resolution of your notebook's monitor is optimally set at the factory.
With the present standards of production technology, absolutely flawless screen images
cannot be guaranteed. There may be a few constantly light or dark pixels (picture
elements) on the screen. The maximum permitted number of such faulty pixels is
specified in the international standard ISO 9241-307 (Class II).
Example:
A screen with an HD resolution of 1366 x 768 has 1366 x 768 = 1049088 pixels. Each pixel consists
of three subpixels (red, green and blue), making a total of about 3 million subpixels. 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.
At a resolution of 1600 x 900 = 1440000 pixels, a maximum of 3 light and 3 dark pixels
and in addition 7 light or 14 dark subpixels are allowed to be defective.
Pixel
Subpixel
Cluster
Background lighting
LCD monitors are operated with background lighting. The luminosity of the background
lighting can decrease during the period of use of the notebook. However, you can
set the brightness of your monitor individually.
Synchronising the display on the LCD screen and an external monitor
For more information, please refer to the chapter
under "Display output, switch between".
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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.
"Key combinations", Page 44
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