Fujitsu LifeBook T904 Operations Manual download pdf (Page 33)

Working with the notebook

LCD screen

LCDscreenNotes

High-quality TFT displays are installed in notebooks 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 m onitor. A monitor resolution

which differs from the speciﬁcation can result in an unclear picture.

The screen resolution of the LCD monitor of your notebook is optimally set at the factory.

The standard of p roduction techniques today cannot guarantee a n 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 screen 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 about 3 million subpixels in total. 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 o r 14 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 funct

ionality of the display.

Subpixel

A subpixel is a se

parately addre ssable internal structure

within a pixel t

hat enhances the pixel function.

Cluster A cluster contains two or more defective pixels or

subpixels in a 5 x 5 pixel block.

Background l

ighting

TFT monitors

are operated with background lighting. The lumin osity of the background

lighting ca

n decrease during the period of use of the notebook. However, you can

set the brig

htness of you r monitor individually.

Synchroni

sing the display on the LCD screen and an extern al monitor

For more i

nformation, please refer to the chapter "

Key combinations", Page 40

under "Di

splay output, switch between".

Ambient Light Sensor

In the case of delivery with a Windows operating system, the screen brightness is regulated

by means of the amb ient light sen sor and depending on the p a rticu lar light co nditions. This

results i n optimum readability and longer battery life at the same time.

Usin

g a device as a tablet PC

You c an execute commands as follows:

• using the stylus pen (supplied with your device).

• using your ﬁngers

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Fujitsu LifeBook T904 Operations Manual Page 33

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